JP2008128573A - Moisture content separator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moisture content separator, securing favorable executability of work while restraining lowering of moisture content separating performance. <P>SOLUTION: This moisture content separator includes: a drum body 40 formed cylindrical; and a moisture separation element 53 where a steam inlet for introducing steam containing moisture content in the axial direction of the drum body 40 into the interior of the drum body 40 and a plurality of separator vanes 54 for separating moisture content of the passing steam are arranged in the axial direction and supported by a separator support frame 55; a stream lining vane 70 having a steam outlet for discharging the steam from the moisture content is separated by the moisture content separation element 53 in the direction of intersecting the axial direction to the outside of the drum part 40 and a plurality of holes 70a for stream lining the steam introduced from the steam inlet; and strength members 56c, 56e, which are provided on the separator vane support frame 55, and to which the stream lining plate 70 is fitted to unitize the moisture content separation element 53 and the stream lining vane 70. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a moisture separator that removes moisture from steam, and more particularly to a moisture separator that is suitable for application to a nuclear power plant or the like.

  For example, in a pressurized water nuclear power plant, light water is used as a reactor coolant and a neutron moderator in a nuclear reactor, and is converted into high-temperature and high-pressure water that does not boil over the entire core. There is one that generates steam by exchange and sends the steam to a turbine generator to generate electricity. And this pressurized water reactor transmits the heat | fever of high temperature high pressure primary cooling water to secondary cooling water via a steam generator, and generates water vapor | steam with secondary cooling water. In addition, the steam generator is configured such that primary cooling water flows inside a large number of thin heat transfer tubes, heat is transferred to the secondary cooling water flowing outside, and steam is generated, and this steam is supplied to the turbine generator. .

  On the other hand, this turbine generator includes a steam turbine having a high-pressure turbine and a low-pressure turbine, and a generator that generates electric power from the output of the steam turbine. In this case, a moisture separator is generally provided between the high-pressure turbine and the low-pressure turbine. This moisture separator separates the moisture contained in the low-pressure steam discharged from the high-pressure turbine, and reheats the low-pressure steam to supply it to the low-pressure turbine as superheated steam, so that the outlet wetness of the low-pressure turbine is reduced. Is reduced to prevent erosion and to improve the thermal efficiency of the turbine plant.

  FIG. 19 is a schematic diagram showing a conventional moisture separator. In a conventional moisture separator, as shown in FIG. 19, a cylindrical body 001 has a heating pipe 002 inserted from one end and a steam inlet formed at the other end so as to communicate with the steam inlet. Two manifolds 003 are provided on both lower sides of the heating tube 002. The heating pipe 002 is supplied with high-pressure heating steam from a steam generator, while each manifold 003 is supplied with low-temperature reheat steam containing moisture from the high-pressure turbine via a steam inlet, Steam can be blown into the body 001 from a number of outlets 004 formed in the section.

  A horizontal partition bottom plate 005 is fixed to the lower part of the fuselage so that a drain passage 006 is defined below it. A drain outlet 007 is formed in the fuselage 001 to discharge the drain (moisture) of the drain passage 006. ing. A pair of left and right moisture separation elements 008 are fixed on the partition bottom plate 005 corresponding to each manifold 003 in the radial direction of the body 001. The moisture separation element 008 is configured to be supported by upper and lower support frames in a state where a large number of corrugated separator vanes are stacked at a predetermined interval, and a drain slit is formed in the lower support frame.

  A pair of left and right partitioning side plates are fixed to the upper portion of each moisture separation element 008 in the radial direction of the body 001. Above the pair of partitioning side plates, the heating tube 002 described above is located. In addition, a steam outlet 009 for discharging steam from which moisture has been separated is formed in the body 001 located above the heating pipe 002. The high-temperature reheat steam discharged from the steam outlet 009 is sent to the low-pressure turbine.

  Therefore, the low-temperature reheat steam from the high-pressure turbine is blown out from the large number of outlets 004 into the body 001 through each manifold 003 and is introduced into each moisture separation element 008 while being guided by the inner wall surface. Then, when the vapor passes through the moisture separation element 008, the moisture is separated by colliding with the separator vane. And the vapor | steam from which moisture was isolate | separated rises through between a pair of right-and-left partition side plates, is heated by contacting the heating pipe 002, and is discharged | emitted from the vapor | steam outlet 009 as high temperature reheated vapor | steam. On the other hand, the moisture separated by the moisture separation element 008 flows down to the drain passage 006 through the drain slit and is discharged from the drain outlet 007 to the outside.

  Here, in the moisture separator described above, it is desired to make the apparatus compact, and for this purpose, it is necessary to reduce the diameter of the body and the manifold 003. In the conventional moisture separator described above, the low-temperature reheated steam passes through the manifold 003 and is blown into the fuselage 001 from a number of outlets 004, and moisture is separated from the steam when passing through the moisture separating element 008. The In this case, if the diameter of the manifold 003 is reduced, the flow velocity of the steam flowing in the manifold 003 increases, and the steam blown from the outlet 004 collides with the partition wall on the front end side of the body 001 and recovers the static pressure. A drift may occur in the flow of steam. Then, when a drift occurs in the steam blown out from the outlet 004, a region where the flow velocity of the steam approaching the separator vane is relatively high is partially formed. In a region where the flow rate exceeds the limit flow rate at which the separation performance can be exhibited, that is, the residence time of the vapor in the moisture separation element 008 becomes short and moisture cannot be removed sufficiently, for example, in the region where the flow rate is relatively high. Moisture that is separated from the steam by the separation element 008 and stays in the lower support frame of the separator vane before flowing into the drain passage 006 is blown up by the dynamic pressure of the steam, so that the moisture in the moisture separation element 008 is increased. Separation performance sometimes deteriorated.

  In addition, in order to suppress the bias | inclination of the approaching flow velocity to said separator vane, the moisture separation heater which provided the perforated plate in the side part of the separator vane is disclosed by the following patent document 1. FIG.

Japanese Patent No. 2714264

  By the way, in the moisture separation heater described in the above-mentioned Patent Document 1, it is difficult to construct a perforated plate at the site where the moisture separator is already installed. At the time of replacement, the work had to be done in a short time in an extremely controlled area, which was extremely difficult.

  Then, an object of this invention is to provide the moisture separator which can ensure favorable workability, suppressing the fall of moisture separation performance.

  In order to achieve the above object, a moisture separator according to a first aspect of the present invention includes a body formed in a cylindrical shape, and a steam inlet for introducing steam containing moisture into the body in the axial direction of the body. And a plurality of separator vanes that separate moisture by passing through the steam are arranged in the axial direction by a separator vane support frame and supported by the moisture separating element, and the moisture is separated by the moisture separating element. In a moisture separator comprising a steam outlet for discharging steam to the outside of the body in a direction intersecting the axial direction, a rectifying plate having a plurality of holes for rectifying the steam introduced from the steam inlet; And a strength member that is provided on the separator vane support frame and unitizes the moisture separation element and the current plate by attaching the current plate. That.

  In the moisture separator of the invention of claim 2, a steam supply space formed as an area accessible from the outside and capable of supplying the steam to the moisture separation element along the inner surface of the body, The strength member is formed integrally with the separator vane support frame on an end surface of the separator vane support frame on the steam supply space side, and the rectifying plate is disposed to face the steam supply space. .

  In a moisture separator according to a third aspect of the present invention, a pair of manifolds provided parallel to the axial direction inside the body, a base end communicating with the steam inlet and a tip closed, A plurality of outlets formed on the side of the manifold at predetermined intervals along the axial direction and capable of blowing steam from the respective manifolds, and a pair of the moisture provided respectively corresponding to the pair of manifolds and facing each other A steam discharge space formed as an area accessible from the outside and capable of discharging the steam that is partitioned between the separation elements and from which moisture has been separated, and the strength member includes the separator vane support frame The separator vane support frame is formed integrally with the end face on the steam discharge space side, and the rectifying plate is disposed to face the steam discharge space.

  In a moisture separator according to a fourth aspect of the present invention, the body includes a first support frame in which the separator vane support frame supports opposite end portions of the separator vane, and the strength member is provided on each of the first support frame and the body. It has a 2nd support frame, The said baffle plate is attached so that the said 1st support frame and the said 2nd support frame may be connected.

In the moisture separator according to the invention of claim 5, the body is set such that the axial direction is a horizontal direction,
The strength member is provided at a lower end in the vertical direction on the end face of the separator vane support frame, and the rectifying plate has a base end fixed to the strength member and a tip at the upper end in the vertical direction on the end face of the separator vane support frame. It is characterized by being positioned at a predetermined interval with respect to the part.

  In the moisture separator according to a sixth aspect of the invention, the strength member is provided along the axial direction inside the separator vane support frame, and a plurality of the separator vanes are provided along the vapor passage direction. The rectifying plate is provided such that one end of each separator vane is fixed between the separator vanes adjacent along the passing direction.

  In a moisture separator according to a seventh aspect of the present invention, the rectifying plate is divided into a plurality of parts in the axial direction.

  In order to achieve the above object, a moisture separator according to an eighth aspect of the present invention includes a body formed in a cylindrical shape, and a steam inlet for introducing steam containing moisture into the body in the axial direction of the body. A manifold which is provided in the body in parallel to the axial direction and whose base end communicates with the steam inlet and whose distal end is closed, and a side portion of the manifold at a predetermined interval along the axial direction. A plurality of outlets formed and capable of blowing steam from the manifold; and a plurality of plate-like manifold support plates that are fixed to the inner surface of the body side by side along the axial direction and support the manifold. A moisture separation element that separates moisture by the passage of the steam, and the body whose steam is separated by the moisture separation element in a direction crossing the axial direction. In the moisture separator and a steam outlet for discharging to the outside, characterized in that it comprises a rectifying plate that is attached to the manifold support plate and having a plurality of holes for rectifying the vapor blown out from the air outlet.

  The moisture separator according to claim 9 includes a steam supply space that is formed as a region that can supply the steam to the moisture separation element along the inner surface of the body and is accessible from the outside. The rectifying plate is provided in plural in the steam supply space at predetermined intervals along the axial direction, divides the steam supply space in the axial direction, and includes an end surface portion of the manifold support plate and an inner surface of the fuselage. It is characterized by being supported by.

  The moisture separator according to the invention of claim 10 includes a steam supply space that is formed as an area that can be supplied to the moisture separation element along the inner surface of the body and is accessible from the outside. The rectifying plate is supported in the steam supply space by an end surface portion of the adjacent manifold support plate and faces the outlet.

  In order to achieve the above object, a moisture separator according to an eleventh aspect of the present invention includes a body formed in a cylindrical shape, and a steam inlet for introducing steam containing moisture into the body in the axial direction of the body. A manifold which is provided in the body in parallel to the axial direction and whose base end communicates with the steam inlet and whose distal end is closed, and a side portion of the manifold at a predetermined interval along the axial direction. A plurality of outlets formed and capable of blowing steam from the manifold; a moisture separation element that separates moisture by the passage of the steam; and the axis of steam separated by the moisture separation element. A moisture separator having a steam outlet for discharging to the outside of the body in a direction crossing the direction, the moisture separator having a plurality of holes for rectifying the steam blown from the outlet; Characterized in that it comprises a rectifying plate that is attached to the outside of 該吹 outlet in field.

  In order to achieve the above object, a moisture separator according to a twelfth aspect of the present invention includes a body formed in a cylindrical shape, and a steam inlet for introducing steam containing moisture into the body in the axial direction of the body. And a plurality of separator vanes that separate moisture by passing through the steam are arranged in the axial direction by a separator vane support frame and supported by the moisture separating element, and the moisture is separated by the moisture separating element. In a moisture separator, comprising a steam outlet for discharging steam to the outside of the body in a direction intersecting the axial direction, a partition for partitioning a gap between an inner surface of the separator vane support frame and an end surface of the separator vane It is characterized by providing.

  In order to achieve the above object, a moisture separator according to a thirteenth aspect of the present invention is a cylinder formed in a cylindrical shape and whose axial direction is set in a horizontal direction, and steam containing moisture inside the trunk. A steam inlet that introduces in the axial direction of the fuselage, a moisture separation element in which a plurality of separator vanes that separate moisture by passing through the steam are supported side by side in the axial direction by a separator vane support frame, and A moisture separator having a steam outlet for discharging steam from which moisture has been separated by a moisture separation element to the outside of the fuselage in a direction intersecting the axial direction, and vertical in an end surface of the separator vane support frame; It is united with the moisture separation element by being attached to a strength member provided at the lower end in the direction, and from the lower end of the separator vane support frame. Characterized in that it comprises a steam regulating plate having a predetermined inclination towards.

  In order to achieve the above object, a moisture separator according to the invention of claim 14 is formed in a cylindrical shape and the axis is set in a horizontal direction, and the steam containing moisture inside the fuselage. A steam inlet that introduces in the axial direction of the fuselage, a moisture separation element in which a plurality of separator vanes that separate moisture by passing through the steam are supported side by side in the axial direction by a separator vane support frame, and A lower end in the vertical direction of the plurality of separator vanes in the moisture separator, comprising a steam outlet for discharging the steam separated by the moisture separating element to the outside of the body in a direction intersecting the axial direction It is characterized by comprising a space part provided in the part.

  In a moisture separator according to a fifteenth aspect of the present invention, a drain passage that is partitioned inside the body and that can store moisture separated from steam by the moisture separation element, the inside of the moisture separation element, and the A drain flow passage communicating with the drain passage, and a drain outlet provided in the trunk so as to communicate with the drain passage and discharging the moisture to the outside of the trunk are provided.

  The moisture separator according to a sixteenth aspect of the present invention includes a heating pipe that is inserted through the body along the axial direction and capable of heating the steam upstream of the steam outlet.

  According to the moisture separator of the first aspect of the present invention, the moisture containing moisture introduced into the body from the steam inlet is separated by passing through the moisture separation element. At this time, the steam is rectified by passing through a rectifying plate having a plurality of holes, and it is suppressed that a region where the approaching flow velocity to the separator vane is relatively high is partially formed. Can be suppressed. Furthermore, since the current plate is unitized with the moisture separation element by the strength member, its workability is improved and it can be reliably attached to the moisture separation element. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  According to the moisture separator of the invention of claim 2, the strength member is provided integrally with the separator vane support frame on the end surface of the separator vane support frame on the side of the steam supply space, and the current plate is disposed facing the steam supply space. Therefore, even when this rectifying plate is replaced when the device is stopped due to maintenance or the like, the rectifying plate is provided facing the steam supply space formed as an area accessible from the outside. You can easily replace this current plate.

  According to the moisture separator of the invention of claim 3, the steam is blown out from the plurality of outlets provided in the pair of manifolds, and the steam is separated from the steam by the pair of moisture separating elements provided corresponding to each other. The moisture is separated, and then the steam joins in the steam discharge space and is discharged to the outside from the steam outlet. At this time, the strength member is provided integrally with the separator vane support frame on the end surface of the separator vane support frame on the side of the steam discharge space, and the current plate is arranged facing the steam discharge space, so When the plate is replaced, since the current plate is provided facing the steam discharge space formed as an area accessible from the outside, the current plate can be easily replaced from the steam discharge space side. Moreover, since the replacement | exchange operation | work of a baffle plate can be performed with respect to both of a pair of moisture separation elements from a vapor | steam discharge space, the construction property can further be improved.

  According to the moisture separator of the fourth aspect of the present invention, the rectifying plate is supported by the opposite end portions of the separator vane, and the first support frame and the second support frame each provided with the strength member are coupled. Accordingly, the separator vane support frame and the current plate can be reliably unitized, and the current plate can prevent the separator vane support frame from being deformed and improve the strength.

  According to the moisture separator of the fifth aspect of the invention, the flow straightening plate is provided so that the tip is positioned at a predetermined interval with respect to the upper end in the vertical direction on the end face of the separator vane support frame. The lower part in the vertical direction of the moisture separation element, in which the approaching flow velocity to the separator vane tends to be relatively high, can be covered, and the vapor flow velocity can be efficiently suppressed. This effectively prevents moisture staying in the separator vane support frame from being blown up by the dynamic pressure of the steam while suppressing steam pressure loss. As a result, moisture separation performance in the moisture separator Can be suppressed. Furthermore, since the current plate can be reduced in size, the current plate can be attached more easily and accurately, and can be easily taken in and out of the body during replacement.

  According to the moisture separator of the invention of claim 6, since the separator vanes are fixed to both sides of the rectifying plate and unitized, the manufacturing accuracy can be improved and the workability can be further improved. . Moreover, since this baffle plate functions also as a rib with respect to the axial direction of a separator vane, the intensity | strength of a separator vane can be improved.

  According to the moisture separator of the seventh aspect of the invention, since the rectifying plate is divided into a plurality of parts with respect to the axial direction, one rectifying plate can be reduced in size. Can be carried out more easily and accurately, and can be easily taken in and out of the body during replacement.

  According to the moisture separator of the eighth aspect of the invention, the steam containing moisture introduced from the steam inlet into the fuselage is blown out from the plurality of outlets through the manifold and passes through the moisture separating element. To separate the moisture. At this time, the steam blown out from the plurality of outlets is rectified by passing through a rectifying plate having a plurality of holes, and the formation of a region where the approaching flow velocity toward the separator vane is relatively high is suppressed from being partially formed. Therefore, the fall of moisture separation performance can be suppressed. Further, since this rectifying plate is attached to a manifold support plate which is a rigid structural member for supporting the manifold, the rectifying plate can be securely attached to the fuselage. Since there is no need to provide a member for assembling, the number of parts and the number of work steps in assembling can be suppressed. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  According to the moisture separator of the ninth aspect of the invention, the rectifying plate is supported in the steam supply space by the manifold support plate and the inner surface of the body along the axial direction, and the steam supply space is divided in the axial direction by the rectifying plate. As a result, the steam is rectified in the steam supply space, and the rectifying plate is firmly supported by the highly rigid manifold support plate and the inner surface of the fuselage, so that it can be prevented from being blown off by the steam. Further, it is possible to suppress the occurrence of vibration and fatigue failure. Even when the current plate is replaced when the apparatus is stopped due to maintenance or the like, the current plate is provided in the steam supply space that is formed as an area accessible from the outside. This baffle plate can be replaced.

  According to the moisture separator of the tenth aspect of the present invention, the rectifying plate is supported in the steam supply space along the axial direction by the adjacent manifold supporting plate, and the rectifying plate is opposed to the outlet, so that the outlet from the outlet. While rectifying the blown steam, this rectifying plate is firmly supported by the adjacent manifold support plate with high rigidity, so that it can be prevented from being blown off by steam, and vibrations will occur and fatigue destruction Can also be suppressed. Even when the current plate is replaced when the apparatus is stopped due to maintenance or the like, the current plate is provided in the steam supply space that is formed as an area accessible from the outside. This baffle plate can be replaced. Further, since the space communicating below the lower end of each manifold support plate in the steam supply space is not blocked, other maintenance work is not obstructed.

  According to the moisture separator of the eleventh aspect of the invention, the steam containing moisture introduced from the steam inlet into the fuselage is blown out from the plurality of outlets through the manifold and passes through the moisture separating element. To separate the moisture. At this time, since the rectifying plate is provided outside the outlet in the manifold, the steam blown out from the plurality of outlets is rectified by passing through the rectifying plate having a plurality of holes immediately after being blown out from the outlet. In addition, it is possible to suppress a partial formation of a region in which the approaching flow velocity to the separator vane is relatively high, so that it is possible to suppress a decrease in moisture separation performance. Since the current plate is directly attached to the manifold, the current plate can be securely attached to the fuselage, and there is no need to provide a member for assembling the current plate. The number can be suppressed. Furthermore, since the current plate need only be large enough to cover the plurality of air outlets, it can be further reduced in size. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  According to the moisture separator of the twelfth aspect of the present invention, the moisture containing moisture introduced from the steam inlet into the fuselage passes through the moisture separation element, so that the moisture is separated. At this time, by providing a partition part so as to partition the gap between the inner surface of the separator vane support frame and the end face of the separator vane, this partition part closes the gap between the separator vane support frame and the end face of the separator vane. Since the steam is prevented from passing through the moisture separation element through this gap without passing through the separator vane, the moisture separation performance can be improved. For this reason, since high dimensional accuracy is not required at the time of manufacture of a separator vane or a separator vane support frame, workability can also be improved. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  According to the moisture separator of the thirteenth aspect of the present invention, the moisture containing moisture introduced from the steam inlet into the fuselage passes through the moisture separation element, so that the moisture is separated. At this time, by providing a steam restriction plate having an inward inclination at the lower part in the vertical direction of the moisture separation element where the flow velocity of the steam toward the separator vane tends to be relatively high, the steam is separated from the separator vane support frame. It is possible to prevent the moisture from staying at the liquid level and to prevent the moisture from being blown up by the dynamic pressure of the steam, thus reducing the moisture separation performance of the moisture separator. Can be suppressed. Furthermore, since this steam control plate is unitized with the separator vane support frame of the moisture separation element by the strength member, its workability is improved and it can be securely attached to the moisture separation element. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  According to the moisture separator of the fourteenth aspect of the present invention, the moisture containing moisture introduced into the body from the steam inlet is separated by passing through the moisture separation element. At this time, by providing a space at the lower end in the vertical direction of each separator vane, the inside of the separator vane support frame communicates, so moisture that temporarily stays in this separator vane support frame is relative to the axial direction. Since the liquid level is dispersed and uniformed and the liquid level is partially prevented from being increased, moisture can be prevented from being blown up by the dynamic pressure of steam. Therefore, it is possible to suppress a decrease in moisture separation performance in the moisture separator. Furthermore, since it is not necessary to provide a new member only by providing a space portion in the separator vane, workability can be improved. If a space portion is provided in the separator vane, the work on the site is performed by the separator vane. Since only the vane needs to be installed, the number of parts and the number of work steps during assembly can be reduced. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  According to the moisture separator of the fifteenth aspect of the present invention, the drain passage that is partitioned in the body and can store the moisture separated from the steam by the moisture separation element, the inside of the moisture separation element, and the drain passage are provided. Drain flow passages that communicate with each other and drain outlets that are provided in the fuselage in communication with the drain passages and that discharge moisture to the outside of the fuselage are provided to remove moisture by passing through each moisture separation element. In addition, the steam from which moisture has been removed flows to the steam outlet, while the moisture is guided from the drain flow path through the drain path to the drain outlet, so that the steam efficiently flows into the fuselage and the moisture is appropriately discharged. Can be separated.

  According to the moisture separator of the sixteenth aspect of the present invention, since the heating pipe that is inserted in the body along the axial direction and is capable of heating the steam upstream of the steam outlet is provided, each moisture separation element is allowed to pass through. Since the moisture is removed and the steam is brought into contact with the heating tube and heated and then flows to the steam outlet, the steam separated from the moisture is heated and then discharged, so that the steam can be effectively used. .

  Below, the example of the moisture separator concerning the present invention is described in detail based on a drawing. Note that the present invention is not limited to the embodiments. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

  FIG. 1 is a partial sectional view in the radial direction of a moisture separation heater according to Example 1 of the present invention, and FIG. 2 is a schematic sectional view in the axial direction of the moisture separation heater according to Example 1 of the present invention. FIG. 3 is a schematic sectional view in the radial direction of the moisture separation heater according to the first embodiment of the present invention, and FIG. 4 is a cutaway perspective view showing the internal structure of the moisture separation heater according to the first embodiment of the present invention. FIG. 5 is a schematic configuration diagram of a power plant to which the moisture separator / heater according to Embodiment 1 of the present invention is applied. 2, 3, and 4, illustration of the porous plate 70 as a rectifying plate of the present invention is omitted for easy understanding.

  As shown in FIG. 5, the power plant 1 to which the moisture separation heater 17 as the moisture separator of the present embodiment is applied uses, for example, light water as a reactor coolant and a neutron moderator, and the entire core. High-pressure high-pressure water that does not boil over, a high-pressure high-pressure water reactor (PWR: Pressurized Water Reactor) that generates steam by sending this high-temperature high-pressure water to a steam generator, and sends this steam to a turbine generator Although this can be applied to an improved pressurized water reactor (APWR) improved in this manner, it can also be applied to other power generation plants of the moisture separation heater 17 of this embodiment.

  The power plant 1 of the present embodiment includes a steam generator 11, a steam turbine 12, and a moisture separation heater 17. The steam generator 11 is connected to the steam turbine 12 via a cooling water pipe 13. The steam turbine 12 has a high-pressure turbine 14 and a low-pressure turbine 15 and is connected to a generator 16. The moisture separation heater 17 is provided between the high-pressure turbine 14 and the low-pressure turbine 15, that is, the high-pressure turbine 14 is connected to the moisture separation heater 17 via the low-temperature reheat pipe 18. On the other hand, the moisture separation heater 17 is connected to the low-pressure turbine 15 via a high-temperature reheat pipe 19. Further, the steam turbine 12 has a condenser 20, and the condenser 20 is connected to the steam generator 11 through a cooling water pipe 21, and the cooling water pipe 21 has a condensate. A pump 22 is provided.

  Therefore, the steam generated by exchanging heat with high-pressure and high-temperature light water in the steam generator 11 is sent to the steam turbine 12 (the high-pressure turbine 14 to the low-pressure turbine 15) through the cooling water pipe 13, and the steam is generated by the steam. The turbine 12 is driven to generate power by the generator 16. In this case, after the steam from the steam generator 11 drives the high-pressure turbine 14, the moisture contained in the steam is removed and heated by the moisture separation heater 17, and then the low-pressure turbine 15 is driven. The steam that has driven the steam turbine 12 is cooled by the condenser 20 and then returned to the steam generator 11 through the cooling water pipe 21.

  More specifically, as shown in FIGS. 2 to 4, the moisture separation heater 17 includes a body 40 that accommodates each part of the apparatus. The body 40 is formed in a hollow cylindrical shape and is installed horizontally so that the axial direction thereof is the horizontal direction. In the following description, “the axial direction of the body 40” is simply abbreviated as “axial direction”, and “the radial direction of the body 40” is simply referred to as “radial direction” unless otherwise specified.

  The body 40 is closed at one end with respect to the axial direction, has a steam inlet 41 at the other end, further has a steam outlet 42 at the top in the vertical direction, and has a drain outlet 43 at the bottom in the vertical direction. The The steam inlet 41 is an opening through which moisture containing moisture (low temperature reheat steam) can be introduced into the body 40, and introduces steam from the outside of the body 40 in the axial direction. The steam outlet 42 is an opening through which moisture (heated reheat steam) from which moisture has been separated and heated can be discharged to the outside of the body 40, and the steam is directed in a direction crossing the axial direction, here upward in the vertical direction. Is discharged to the outside of the body 40. That is, the moisture separation heater 17 of the present embodiment is a so-called axial flow type moisture separation heater. The drain outlet 43 is an opening through which moisture (drain) separated from the steam can be discharged, and the moisture is discharged to the outside of the body 40 in the vertical direction. As shown in FIG. 5, the steam inlet 41 is connected to the high-pressure turbine 14 via the low-temperature reheat pipe 18, and the steam outlet 42 is connected to the low-pressure turbine 15 via the high-temperature reheat pipe 19, and the drain outlet 43 Is connected to a drain tank via a drain pipe (not shown).

  As shown in FIGS. 2 to 4, the body 40 has a heating tube group 44 inserted through the axial direction from one end in the axial direction (longitudinal direction). The heating tube group 44 includes a steam chamber 45 located outside the body 40, and a plurality of U-shaped heating tubes 46 extending from the steam chamber 45 into the body 40. The plurality of heating tubes 46 are supported by a pair of partition walls 47 fixed inside the body 40 and a plurality of support walls 48 serving as manifold support plates fixed therebetween. The steam chamber 45 is divided into upper and lower parts, and a pipe branched from the cooling water pipe 13 of the steam generator 11 is connected to an upper inlet nozzle 45a to which one ends of the plurality of heating pipes 46 are connected. On the other hand, a drain pipe extending to the drain tank is connected to a lower outlet nozzle 45b to which the other ends of the plurality of heating pipes 46 are connected.

  An inflow chamber 60 is defined by the inner surface of the fuselage 40 and the partition wall 47 described above on the steam inlet 41 side inside the fuselage 40. The inflow chamber 60 is provided as a space communicating with the steam inlet 41 and having a predetermined volume. The body 40 is positioned on both sides below the heating tube group 44 from the other end in the axial direction, and a pair of left and right manifolds 49 are provided in the radial direction.

  The pair of manifolds 49 are provided in parallel to the axial direction inside the body 40 through the plurality of support walls 48 described above. Each manifold 49 has a proximal end fixed to one partition wall 47 and communicated with the steam inlet 41 via the inflow chamber 60, and a distal end fixed to the other partition wall 47 and closed. The plurality of support walls 48 serving as manifold support plates are formed in a plate shape and are fixed to the inner surface of the body 40 side by side at predetermined intervals along the axial direction. Therefore, each manifold 49 is supported by the body 40 through the plurality of support walls 48. Each manifold 49 is formed with a plurality of air outlets 50 for blowing steam into the body 40 at the side facing the wall surface of the body 40. The plurality of air outlets 50 are formed at predetermined intervals along the axial direction in the side portions of the respective manifolds 49 and can blow out steam from the inside of the respective manifolds 49 downward.

  A horizontal first support plate 51 is fixed to the lower part of the body 40, and a pair of moisture separations on the left and right sides of the radial direction corresponding to the pair of manifolds 49 on both sides of the first support plate 51. An element 53 is provided. That is, the pair of moisture separation elements 53 are provided so as to face each other in the radial direction. The moisture separation element 53 is positioned to face each outlet 50 of the manifold 49, and can separate moisture when steam passes therethrough. That is, the moisture separation element 53 includes a plurality of separator vanes 54 that separate moisture by the passage of steam, and a separator vane support frame 55 that supports the plurality of separator vanes 54 side by side in the axial direction. The separator vanes 54 have a corrugated shape, and a large number of separator vanes 54 are stacked at predetermined intervals in the axial direction. The separator vane support frame 55 includes an upper support frame 56 a as a first support frame and a lower support frame 56 b as a second support frame, thereby supporting the separator vane 54 on the first support plate 51. . Here, the lower support frame 56b is integrally fixed to both side portions of the first support plate 51 and is fixed to the inner wall surface of the body 40, so that the drain passage 52 is defined. The drain outlet 43 described above is provided below.

  The drain passage 52 is partitioned in the lower part of the body 40 by the first support plate 51 and the lower support frame 56b. In the lower support frame 56 b of the separator vane support frame 55, a drain opening 59 is formed as a drain flow passage that connects the inside of the separator vane support frame 55 and the drain passage 52. The drain passage 52 can store moisture separated from the steam by the moisture separation element 53 and staying on the lower support frame 56 b through the drain opening 59. Further, the drain outlet 43 described above communicates with the drain passage 52. Thereby, the moisture contained in the drain passage 52 is discharged to the outside of the body 40 through the drain outlet 43.

  In addition, a pair of left and right second support plates 57 are erected on the upper side of each moisture separation element 53 with respect to the radial direction. Each second support plate 57 extends upward so as to bend along both sides of the heating tube group 44, and an upper end portion is connected to the body 40, while a lower end portion is an upper support frame of the separator vane support frame 55. 56a.

Therefore, the steam blown out from the outlet 50 of the manifold 49 flows into the steam outlet 42 through the moisture separation element 53 in the internal space of the body 40 by the first support plate 51 and the lower support frame 56b described above. The steam flow space S ₁ and the drain passage 52 that guides the moisture separated by the moisture separation element 53 to the drain outlet 43 are partitioned.

Further, the steam flow space S ₁ is a steam supply space in which steam blown from the outlet 50 flows to the moisture separation element 53 by the second support plate 57 and the upper support frame 56a with the moisture separation element 53 as a boundary. It is partitioned into S ₂₁ and a steam discharge space S ₂₂ in which the steam whose moisture has been separated by the moisture separating element 53 flows to the steam outlet 42.

More specifically, the steam supply space S ₂₁ is a space provided along the inner surface of the body 40, and a moisture separation element provided with steam blown from the plurality of outlets 50 inside the body 40. 53 can be supplied. Inside the body 40, a pair of left and right steam supply spaces S ₂₁ are provided corresponding to the pair of manifolds 49 in the radial direction. The steam supply space S ₂₁ includes a space sandwiched between support walls 48 adjacent in the axial direction, and a space communicating below the lower end of each support wall 48.

The steam discharge space S ₂₂ is defined between the pair of moisture separation elements 53 and communicates with the steam outlet 42. In the steam discharge space S ₂₂ , the steam that has passed through each moisture separation element 53 and separated from the moisture flows upward in the vertical direction, and can be discharged through the steam outlet 42. The above-mentioned heating tube group 44 is provided along the axial direction in the steam discharge space S ₂₂ , whereby the steam from which moisture has been separated by the moisture separation element 53 can be heated on the upstream side of the steam outlet 42. is there.

Incidentally, the moisture separating elements 53 described above, has been arranged along the axial direction of the body 40, at the steam inlet 41 side of the manifold 49, the maintenance space S ₃ 2 two moisture separating elements 53a, 53b It is divided into areas. Each moisture separation element 53a, 53b is supported by a plurality of jack bolts 58 interposed therebetween.

In the moisture separation element 53, as shown in FIG. 1, a plurality of corrugated separator vanes 54 are stacked at a predetermined interval, and are supported by an upper support frame 56a and a lower support frame 56b of the separator vane support frame 55. The steam blown from the outlet 50 of the manifold 49 passes between the plurality of separator vanes 54, so that moisture contained in the steam collides and is separated. On support frame 56a and the lower support frame 56b of the separator vane support frame 55, on the vertical wall portion 56c of each upright on the steam supply space S ₂₁ side, and Shitatatekabe portion 56e, upright steam discharging space S ₂₂ side An upper vertical wall portion 56d and a lower vertical wall portion 56f. That is, the upper support frame 56a and the lower support frame 56b have a U-shaped frame structure. The moisture separated from the steam by the separator vane 54, that is, the drain temporarily stays in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b, and the drain opening 59 described above. It is discharged into the drain passage 52 and stored.

The body 40 and the partition wall 47 of the moisture separator 17 are provided with manholes 61 (see FIG. 4) that allow workers to enter and leave the body 40. The steam supply space S ₂₁ , the steam discharge space S _22, and the inflow chamber 60 are formed as regions (accessible regions) where workers can enter from the outside through the manhole 61 (see FIG. 4). For example, it may be used as a maintenance space during periodic inspections of the apparatus.

  Here, the operation of moisture separation by the moisture separation heater 17 of the present embodiment will be described in detail with reference to FIGS.

  In the moisture separation by the moisture separation heater 17 of the present embodiment, as shown in FIG. 5, the heating steam generated by the steam generator 11 passes through the cooling water pipe 13 to the high-pressure turbine 14 constituting the steam turbine 12. In addition to being sent to the moisture separation heater 17. Then, the low-temperature reheat steam that has driven the high-pressure turbine 14 is sent to the moisture separator / heater 17 through the low-temperature reheat pipe 18, where moisture contained in the steam is removed and heated, and the high-temperature reheat steam is heated. And sent to the low-pressure turbine 15 through the high-temperature reheat pipe 19.

  In the moisture separation heater 17, as shown in FIGS. 2 to 4, the heating steam generated by the steam generator 11 is supplied from the inlet nozzle 45 a of the steam chamber 45 to the heating tube group 44, Is returned to the steam chamber 45 through a plurality of heating pipes 46, and is discharged as drainage from the outlet nozzle 45b.

On the other hand, the low-temperature reheat steam from the high-pressure turbine 14 is supplied from the steam inlet 41 into the manifold 49, and blown out from the numerous outlets 50 to the steam supply space S _{21 of the} body 40. The steam blown into the steam supply space S ₂₁ of the body 40 is guided to each moisture separation element 53 along the inner wall surface. Then, in the moisture separation element 53, the steam passes between the plurality of separator vanes 54 having a waveform, and the moisture contained in the steam collides with the separator vanes 54 to be separated as drain. The

The steam from which moisture has been separated by the moisture separation element 53 rises through the steam discharge space S ₂₂ defined by the left and right second support plates 57 and passes between the plurality of heating tubes 46. In addition, it is heated by the heating steam passing through each heating pipe 46, becomes high-temperature reheated steam, and is discharged from the steam outlet 42. On the other hand, the moisture (drain) separated from the steam by the moisture separation element 53 flows down to the drain passage 52 through the drain opening 59 and is discharged to the outside from the drain outlet 43.

  By the way, in the moisture separation heater 17 of the present embodiment, the body 40 and the manifold 49 are reduced in diameter in order to make the apparatus compact. In this case, when the diameter of the manifold 49 is reduced, the flow velocity of the steam flowing in the manifold 49 increases, and the steam blown out from each outlet 50 is a partition wall 47 on the front end side (left side in FIG. 2) of the manifold 49. Since there is a static pressure recovery due to collision, there is a risk of drift in the steam flow. When drift occurs in the steam blown out from the outlet 50, a region in which the flow velocity of the steam toward the separator vane 54 is relatively high is partially formed. For example, the flow velocity of the steam is appropriate in the separator vane 54. Exceeding the limit flow rate at which a satisfactory moisture separation performance can be exhibited, that is, in a region where the residence time of the vapor in the moisture separation element 53 is shortened and moisture cannot be removed sufficiently, for example, in a region where the flow rate is relatively high. In the separator vane support frame 55, the moisture temporarily staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is blown up by the dynamic pressure of the steam. The moisture separation performance in the separation element 53 may be reduced.

  Therefore, in the moisture separation heater 17 of the present embodiment, as shown in FIG. 1, by providing a rectifying plate that rectifies the steam introduced from the steam inlet 41, a decrease in moisture separation performance is suppressed. . Furthermore, when such a moisture separator / heater 17 is already installed in the field, for example, when performance is deteriorated due to secular change or parts are replaced due to maintenance, the moisture separator / heater 17 is constructed in a limited management area in a short time. This can be a very difficult task. However, in the moisture separator / heater 17 of the present embodiment, better workability is ensured while suppressing a decrease in moisture separation performance.

Specifically, the perforated plate 70 as a current plate has a plurality of holes 70a for straightening the steam. The perforated plate 70 is attached to an upper vertical wall portion 56c and a lower vertical wall portion 56e as strength members provided on the separator vane support frame 55. The upper vertical wall portion 56c and the Shitatatekabe unit 56e, as described above, is formed in the steam supply space S ₂₁ side end surface of the separator vane support frame 55 integral with the separator vane support frame 55. Furthermore, the upper vertical wall portion 56c and the lower vertical wall portion 56e are extended in the axial direction along the separator vane 54, and have high rigidity.

Perforated plate 70 is fixed by bolts or welding are disposed to face the steam supply space S ₂₁ in the upper vertical wall portion 56c and the Shitatatekabe portion 56e. The porous plate 70 along the axial direction so as to cover the entire side surface of the steam supply space S ₂₁ side of the separator vane 54, i.e., it is extended along the Uetatekabe portion 56c and Shitatatekabe portion 56e . That is, the upper vertical wall portion 56c and the lower vertical wall portion 56e connect the separator vane support frame 55 of the moisture separation element 53 and the porous plate 70 as a unit, and the moisture separation element 53 and the porous plate 70 have a modular structure. Make. That is, the perforated plate 70 is attached so as to connect the upper support frame 56a and the lower support frame 56b of the separator vane support frame 55.

The moisture separation heater 17 is configured as described above, so that the steam flowing through the steam supply space S ₂₁ is rectified by passing through the plurality of holes 70 a of the perforated plate 70, and the moisture separation element 53. Vapor flow velocity distribution at is uniform. Further, by suppressing the uneven flow of the steam, it is possible to suppress the partial formation of a region in which the flow velocity of the steam close to the separator vane 54 is relatively high, and the steam flow velocity has an appropriate moisture content in the separator vane 54. It is prevented that the flow rate exceeds the limit flow rate at which the separation performance can be exhibited. Thereby, the residence time of the vapor in the moisture separation element 53 is sufficiently secured, and the moisture can be appropriately separated from the vapor. Further, since there is no region where the flow velocity of the steam becomes high, moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is blown up by the dynamic pressure of the steam. This is also prevented. As a result, a decrease in moisture separation performance in the moisture separation heater 17 can be suppressed. In addition, by preventing steam drift, the separator vanes 54 that are stacked in the axial direction can be used evenly, and therefore, the performance of the separator vanes 54 is prevented from partially deteriorating. Is done.

Further, since the perforated plate 70 is unitized with the separator vane support frame 55 of the moisture separation element 53 by the upper vertical wall portion 56c and the lower vertical wall portion 56e, it is installed in the body 40 together with the moisture separation element 53. It is possible to improve the workability, and it is securely attached to the upper vertical wall portion 56c and the lower vertical wall portion 56e having high rigidity. Nor. Further, for example, even when it becomes necessary to replace it due to secular change, the porous plate 70 is provided facing the vapor supply space S ₂₁ formed as an accessible area. Enters the steam supply space S ₂₁ from the outside through the manhole 61 (see FIG. 4), and the perforated plate 70 can be easily replaced from the steam supply space S ₂₁ side.

  As described above, in the moisture separation heater 17 according to the first embodiment, the body 40 formed in a cylindrical shape, and the steam inlet 41 that introduces steam containing moisture into the body 40 in the axial direction of the body 40. The moisture separation element 53 in which a plurality of separator vanes 54 that separate moisture by the passage of steam are arranged and supported in the axial direction by the separator vane support frame 55 and the moisture separation element 53 separate moisture. A steam outlet 42 for discharging the steam to the outside of the body 40 in a direction crossing the axial direction, a perforated plate 70 having a plurality of holes 70a for rectifying the steam introduced from the steam inlet 41, and a separator vane support frame 55 and an upper vertical wall portion 56c and a lower vertical wall portion 56e that unitize the moisture separating element 53 and the porous plate 70 by attaching the porous plate 70 thereto. .

  Therefore, the steam including the moisture introduced into the body 40 from the steam inlet 41 passes through the moisture separation element 53 so that the moisture is separated. At this time, the steam is rectified by passing through the perforated plate 70 having a plurality of holes 70a, and it is suppressed that a region where the approaching flow velocity toward the separator vane 54 is relatively high is partially formed. A decrease in the separation performance can be suppressed. Further, since the perforated plate 70 is unitized with the separator vane support frame 55 of the moisture separation element 53 by the upper vertical wall portion 56c and the lower vertical wall portion 56e, its workability is improved and moisture separation is performed. The element 53 can be securely attached. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

Further, in this way, in the moisture separation heater 17 of the first embodiment, steam can be supplied to the moisture separation element 53 along the inner surface of the body 40 and is formed as an accessible region. comprising a space S _21, the vertical wall portion 56c and the Shitatatekabe portion 56e on the as strength member is formed integrally with the separator vane support frame 55 to the steam supply space S ₂₁ side end surface of the separator vane support frame 55, porous plate 70 is located facing the steam supply space S _21. Therefore, even when the perforated plate 70 is replaced when the apparatus is stopped due to maintenance or the like, the perforated plate 70 is provided facing the steam supply space S ₂₁ formed as an accessible region. The perforated plate 70 can be easily replaced from the ₂₁ side.

  Further, in this way, in the moisture separator / heater 17 of the first embodiment, the separator vane support frame 55 supports the opposite end portions of the separator vane 54, and the upper vertical wall portion 56c and the lower vertical wall portion respectively. An upper support frame 56a and a lower support frame 56b provided with a wall 56e are provided, and the perforated plate 70 is attached so as to connect the upper support frame 56a and the lower support frame 56b. Therefore, the perforated plate 70 is supported by the opposite end portions of the separator vane 54 and is connected to the upper support frame 56a and the lower support frame 56b provided with the upper vertical wall portion 56c and the lower vertical wall portion 56e, respectively. Accordingly, the separator vane support frame 55 and the porous plate 70 can be reliably unitized, and the porous plate 70 can prevent the separator vane support frame 55 from being deformed and improve the strength.

  Furthermore, in the moisture separation heater 17 of the first embodiment as described above, the drain passage 52 that is partitioned inside the body 40 and can store the moisture separated from the steam by the moisture separation element 53, and the moisture A drain opening 59 that connects the inside of the separator vane support frame 55 of the separation element 53 and the drain passage 52, and a drain outlet 43 that is provided in the body 40 so as to communicate with the drain passage 52 and discharges moisture to the outside of the body 40. With. Therefore, moisture is removed by passing through each moisture separation element 53, and the steam from which moisture has been removed flows to the steam outlet 42, while moisture is drained from the drain opening 59 through the drain passage 52 and drain outlet. Therefore, the steam can be efficiently flowed into the body 40 to appropriately separate moisture.

  Furthermore, in this way, the moisture separation heater 17 according to the first embodiment includes the heating tube group 44 that is inserted through the body 40 along the axial direction and can heat the steam upstream of the steam outlet 42. Therefore, the moisture is removed by passing through each moisture separation element 53 and the steam is brought into contact with the heating tube group 44 and heated and then flows to the steam outlet 42. By exhausting from the steam, it is possible to effectively use the steam.

  FIG. 6 is a schematic cross-sectional view in the axial direction of the moisture separation heater according to the second embodiment of the present invention. The moisture separator / heater according to the second embodiment has substantially the same configuration as the moisture separator / heater according to the first embodiment, but the moisture separator according to the first embodiment is different in that the current plate is divided into a plurality of parts. Different from the heater. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

As shown in FIG. 6, the moisture separation heater 217 as the moisture separator according to the second embodiment includes a plurality of perforated plates 270 as rectifying plates having a plurality of holes 270 a for rectifying steam in the axial direction. It is divided into That is, the porous plate 270 of the present embodiment is formed by a plurality of divided porous plates 270b arranged in the axial direction. The divided perforated plate 270b is formed in a rectangular shape whose one side is shorter than the manhole 61 and the inner diameter of the steam inlet 41 described above. Here, the moisture separation element 53 including the separator vane 54 and the separator vane support frame 55 is also divided into a plurality of portions in the axial direction corresponding to the porous plate 270. The separation element 53 forms one unit. Accordingly, one unit of the perforated plate 270 and the moisture separating element 53 is smaller than, for example, the unit of the perforated plate 70 (see FIG. 1) and the moisture separating element 53 in the first embodiment. Is further improved. Further, even when the unit of the perforated plate 270 and the moisture separating element 53 is replaced when the apparatus is stopped due to maintenance or when only the perforated plate 270 is replaced, the perforated plate 270 and the moisture separating element 53 are downsized. Therefore, it can be easily put in and out of the steam supply space S ₂₁ in the body 40 through the manhole 61.

  Thus, in the moisture separation heater 217 of Example 2, the perforated plate 270 is divided into a plurality of parts in the axial direction. Accordingly, since the perforated plate 270 is formed by the plurality of divided perforated plates 270b arranged in the axial direction, one can be reduced in size, and the perforated plate 270 can be attached more easily and accurately. When replacing, the body 40 can be easily put in and out.

  FIG. 7: is a fragmentary sectional view of the radial direction of the moisture separation heater based on Example 3 of this invention. The moisture separator / heater according to the third embodiment has substantially the same configuration as the moisture separator / heater according to the first embodiment, but the mounting position of the current plate in the separator vane support frame is the moisture separator according to the first embodiment. Different from the heater. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

As shown in FIG. 7, the moisture separation heater 317 as a moisture separator according to the third embodiment includes a porous plate 370 as a rectifying plate having a plurality of holes 370a for rectifying steam. The perforated plate 370 is attached to the upper vertical wall portion 56d and the lower vertical wall portion 56f as strength members provided on the separator vane support frame 55. The upper vertical wall portion 56d and the Shitatatekabe portion 56f, as described above, is formed on the steam discharging space S ₂₂ side end surface of the separator vane support frame 55 integral with the separator vane support frame 55. Furthermore, the upper vertical wall portion 56d and the lower vertical wall portion 56f extend in the axial direction along the separator vane 54 and have high rigidity.

Perforated plate 370 is fixed by bolts or welding are disposed facing the steam discharging space S ₂₂ in the upper vertical wall portion 56d and the Shitatatekabe portion 56f. The perforated plate 370 in the axial direction so as to cover the entire side of the steam discharging space S ₂₂ side of the separator vane 54, i.e., it is extended along the Uetatekabe portion 56d and Shitatatekabe portion 56f . That is, the upper vertical wall portion 56d and the lower vertical wall portion 56f connect the separator vane support frame 55 of the moisture separation element 53 and the porous plate 370 as a unit, and the moisture separation element 53 and the porous plate 370 have a modular structure. Make. That is, the perforated plate 370 is attached so as to connect the upper support frame 56a and the lower support frame 56b of the separator vane support frame 55.

  Since the moisture separation heater 317 is configured as described above, the flow of vapor is rectified by the plurality of holes 370a of the perforated plate 370, and the flow velocity distribution of the vapor in the moisture separation element 53 is made uniform. Is done. Further, by suppressing the uneven flow of the steam, it is possible to suppress the partial formation of a region in which the flow velocity of the steam close to the separator vane 54 is relatively high, and the steam flow velocity has an appropriate moisture content in the separator vane 54. It is prevented that the flow rate exceeds the limit flow rate at which the separation performance can be exhibited. Thereby, the residence time of the vapor in the moisture separation element 53 is sufficiently secured, and the moisture can be appropriately separated from the vapor. Further, since there is no region where the flow velocity of the steam becomes high, moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is blown up by the dynamic pressure of the steam. This is also prevented. As a result, a decrease in moisture separation performance in the moisture separation heater 317 can be suppressed. In addition, by preventing steam drift, the separator vanes 54 that are stacked in the axial direction can be used evenly, and therefore, the performance of the separator vanes 54 is prevented from partially deteriorating. Is done.

Further, since the perforated plate 370 is unitized with the separator vane support frame 55 of the moisture separation element 53 by the upper vertical wall portion 56d and the lower vertical wall portion 56f, it is installed in the body 40 together with the moisture separation element 53. It is possible to improve the workability, and it is securely attached to the upper vertical wall portion 56d and the lower vertical wall portion 56f having high rigidity. Nor. Furthermore, for example, even when it becomes necessary to replace the aging due to secular change, the perforated plate 370 is provided facing the vapor discharge space S ₂₂ formed as an accessible area. There enters through the manhole 61 (see Fig. 4) from the outside to the steam discharging space S _22, easily from the steam discharging space S ₂₂ side is possible to replace the porous plate 370.

As described above, in the moisture separator / heater 317 according to the third embodiment, the pair of the body 40 is provided in the body 40 in parallel to the axial direction, the base end communicates with the steam inlet 41 and the front end is closed. A manifold 49, a plurality of outlets 50 formed at predetermined intervals along the axial direction on the side of each manifold 49 and capable of blowing steam from each manifold 49, and corresponding to the pair of manifolds 49, facing each other. An upper vertical wall serving as a strength member, comprising a steam discharge space S ₂₂ formed as an accessible area that is capable of discharging steam separated and separated between a pair of provided moisture separation elements 53. parts 56d and Shitatatekabe portion 56f is formed on the steam discharging space S ₂₂ side end surface of the separator vane support frame 55 integral with the separator vane support frame 55, porous plate 370 It is disposed facing the steam discharging space S _22.

Accordingly, steam is blown out from the plurality of outlets 50 provided in the pair of left and right manifolds 49 with respect to the radial direction, and moisture is supplied from the steam by the pair of moisture separation elements 53 provided to face each other. are separated, then the steam is discharged from the steam outlet 42 to the outside merges with the steam discharging space S _22. When replacing the perforated plate 370 in stopping, such as by apparatus maintenance, since the perforated plate 370 faces the steam discharging space S ₂₂ which is formed as an accessible region is provided, the steam discharging space S ₂₂ The perforated plate 370 can be easily replaced from the side. Moreover, because it can work replacement of the porous plate 370 with respect to both the steam discharging space S ₂₂ from the pair moisture separating element 53, it is possible to further improve the workability.

  Further, in the moisture separator / heater 317 of Example 3 as described above, the separator vane support frame 55 supports the opposite end portions of the separator vane 54, and the upper vertical wall portion 56 d and the lower vertical wall portion respectively. It has an upper support frame 56a and a lower support frame 56b provided with wall portions 56f, and the perforated plate 370 is attached so as to connect the upper support frame 56a and the lower support frame 56b. Therefore, the perforated plate 70 is supported by the opposite end portions of the separator vane 54 and is connected to the upper support frame 56a and the lower support frame 56b provided with the upper vertical wall portion 56d and the lower vertical wall portion 56f, respectively. Therefore, the separator vane support frame 55 and the porous plate 370 can be reliably unitized, and the porous plate 370 can prevent the separator vane support frame 55 from being deformed and improve the strength.

  FIG. 8 is a partial cross-sectional view in the radial direction of the moisture separation heater according to the fourth embodiment of the present invention. The moisture separator / heater according to the fourth embodiment has substantially the same configuration as the moisture separator / heater according to the first embodiment, but according to the first embodiment in that the current plate is cantilevered and fixed to the strength member. Different from moisture separator heater. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

As shown in FIG. 8, the moisture separation heater 417 as a moisture separator according to the fourth embodiment includes a porous plate 470 as a rectifying plate having a plurality of holes 470a for rectifying steam. The perforated plate 470 is cantilevered to the lower vertical wall portion 56e as a strength member provided on the separator vane support frame 55. That is, the strength member of the present invention is provided as the lower vertical wall portion 56e in the vertical lower portion of an end face of a steam supply space S ₂₁ side of the separator vane support frame 55. Shitatatekabe unit 56e, as described above, is formed integrally with the lower support frame 56b of the separator vane support frame 55 to the steam supply space S ₂₁ side end surface of the separator vane support frame 55. Furthermore, the lower vertical wall portion 56e extends in the axial direction along the separator vane 54 and has high rigidity.

The perforated plate 470 has a base end is fixed by bolts or welding to the lower vertical wall portion 56e, facing the steam supply space S ₂₁ the tip is provided in a cantilever manner so as to extend above the support frame 56a side located Is done. That is, the perforated plate 470 has a base end fixed to the lower vertical wall portion 56e and a distal end positioned at a predetermined interval with respect to the upper vertical wall portion 56c in the vertical upper end portion of the end face of the separator vane support frame 55. To do. That is, unlike the porous plate 70 of the first embodiment, the porous plate 470 does not cover the entire side surface of the separator vane 54 on the steam supply space S ₂₁ side, but covers only the lower portion in the vertical direction of the side surface. . The perforated plate 470 extends along the axial direction, that is, along the lower vertical wall portion 56e. That is, the lower vertical wall portion 56e connects the separator vane support frame 55 of the moisture separation element 53 and the porous plate 470 to form a unit, and the moisture separation element 53 and the porous plate 470 form a module structure.

The moisture separator heater 417, that is constructed as described above, the flow of steam in the vertical direction lower portion of an end face of a steam supply space S ₂₁ side of the separator vane support frame 55, a plurality of the perforated plates 470 It is rectified by the hole 470a, and the formation of a region where the approaching flow velocity toward the separator vane 54 becomes relatively high is suppressed. This prevents the region where the flow rate of steam is high from being lost, so that moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b becomes the steam. It is prevented from being blown up by the dynamic pressure. As a result, a decrease in moisture separation performance in the moisture separation heater 417 can be suppressed.

Further, as described above, the plurality of outlets 50 of each manifold 49 blow out steam downward in the vertical direction, and flow in the steam supply space S ₂₁ along the inner surface of the body 40. min flow rate in the vertical direction lower side of the steam the separation element 53 tends to be relatively high, but the perforated plate 470 is provided so as to cover the vertically lower side of the steam supply space S ₂₁ side of the separator vane 54 Therefore, the steam flow rate can be efficiently suppressed in a region where the flow rate tends to be high.

Further, since the perforated plate 470 is unitized with the separator vane support frame 55 of the moisture separation element 53 by the lower vertical wall portion 56e, it can be installed in the body 40 together with the moisture separation element 53. Workability is improved and the rigid vertical lower wall portion 56e is securely attached, so that it is not blown off by steam, and vibrations are not generated and fatigue destruction occurs. Furthermore, for example, even when it becomes necessary to replace the aging due to secular change, the perforated plate 470 is provided facing the vapor supply space S ₂₁ formed as an accessible area. Enters the steam supply space S ₂₁ from the outside through the manhole 61 (see FIG. 4), and the perforated plate 470 can be easily replaced from the steam supply space S ₂₁ side. In this case, the porous plate 470, as described above, is fixed in a cantilever in Shitatatekabe portion 56e, rather than covering the entire side of the steam supply space S ₂₁ side of the separator vane 54, the vertical direction of the side surface Since it is only necessary to have a size that can cover only the lower part, for example, the size can be further reduced as compared with the porous plate 70 of the first embodiment. Therefore, the attachment of the porous plate 470 is easier. It can be carried out with high accuracy and can be easily taken in and out of the body 40 at the time of replacement.

  As described above, in the moisture separator / heater 417 according to the fourth embodiment, the body 40 has the axial direction set in the horizontal direction, and the lower vertical wall portion 56e as the strength member is perpendicular to the end face of the separator vane support frame 55. The perforated plate 470 is provided on the lower support frame 56b at the lower end in the direction, and the base end of the perforated plate 470 is fixed to the lower vertical wall portion 56e. With a predetermined interval. Therefore, the perforated plate 470 is provided so as to cover the lower part in the vertical direction of the moisture separation element 53 in which the steam flow velocity toward the separator vane 54 tends to be relatively high, so that the steam flow velocity can be efficiently suppressed. it can. Thereby, it is effective that the moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is blown up by the dynamic pressure of the steam while suppressing the pressure loss of the steam. As a result, a decrease in moisture separation performance in the moisture separation heater 417 can be suppressed. Furthermore, since the perforated plate 470 can be reduced in size, the perforated plate 470 can be attached more easily and accurately, and can be easily taken in and out of the body 40 during replacement.

  The moisture separator / heater 417 according to the fourth embodiment of the present invention described above is not limited to the above-described embodiments, and various modifications can be made within the scope described in the claims. As described in the second embodiment, the perforated plate 470 may be divided into a plurality of pieces in the axial direction. In this case, the porous plate 470 can be further reduced in size, and its workability can be further improved.

  FIG. 9: is a fragmentary sectional view of the radial direction of the moisture separation heater based on Example 5 of this invention. The moisture separator / heater according to the fifth embodiment has substantially the same configuration as the moisture separator / heater according to the fourth embodiment, but the mounting position of the current plate in the separator vane support frame is the moisture separator according to the fourth embodiment. Different from the heater. In addition, about the structure, effect | action, and effect which are common in Example 4, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

As shown in FIG. 9, the moisture separation heater 517 as a moisture separator according to the fifth embodiment includes a porous plate 570 as a rectifying plate having a plurality of holes 570a for rectifying steam. The perforated plate 570 is cantilevered to the lower vertical wall portion 56 f as a strength member provided on the separator vane support frame 55. The lower vertical wall portion 56f extends in the axial direction along the separator vane 54, and has high rigidity. The perforated plate 570 has a base end is fixed by bolts or welding to the lower vertical wall portion 56f, facing the steam discharging space S ₂₂ the tip is provided in a cantilever manner so as to extend above the support frame 56a side located Is done. That is, the perforated plate 570 has a base end fixed to the lower vertical wall portion 56f and a distal end positioned at a predetermined interval with respect to the upper vertical wall portion 56d in the vertical upper end portion of the end face of the separator vane support frame 55. To do. The lower vertical wall portion 56f connects the separator vane support frame 55 of the moisture separation element 53 and the porous plate 570 into a unit, and the moisture separation element 53 and the porous plate 570 form a module structure.

The moisture separator heater 517, as described above, moisture flow rate of the vertical direction lower side of the steam tends to be relatively high in separating element 53, but the steam discharging space S ₂₂ of the porous plate 570 is a separator vane 54 Since it is provided so as to cover the lower part in the vertical direction of the side surface on the side, the flow velocity of the steam can be efficiently suppressed in the region where the flow velocity tends to be high, and thus the lower vertical wall portion 56e on the lower support frame 56b. The moisture staying in the region between the lower vertical wall portion 56f is prevented from being blown up by the dynamic pressure of the steam. Furthermore, even if the moisture staying in this region is temporarily blown up, the perforated plate 570 provided on the steam discharge space S ₂₂ side functions like a weir to regulate the blowing up of the moisture itself, that this moisture is carried by the steam to the steam discharging space S ₂₂ it is prevented.

Further, since the perforated plate 570 is unitized with the separator vane support frame 55 of the moisture separation element 53 by the lower vertical wall portion 56f, its workability is improved and it is not blown away by steam, Will occur and will not cause fatigue failure. Furthermore, for example, even when the need to replace the aging occurs, since the perforated plate 570 is provided to face the steam discharging space S ₂₂ which is formed as an access area, the steam supply space S ₂₁ side It is possible to easily replace the perforated plate 570. At this time, since the perforated plate 570 can be further reduced in size, the perforated plate 570 can be attached more easily and accurately, and can be easily taken in and out of the body 40 during replacement.

As described above, in the moisture separator / heater 517 of the fifth embodiment, the body 40 has the axial direction set in the horizontal direction, and the lower vertical wall portion 56f serving as the strength member is perpendicular to the end face of the separator vane support frame 55. The perforated plate 570 is provided at the lower support frame 56b at the lower end in the direction, and the base end of the perforated plate 570 is fixed to the lower vertical wall 56f and the upper end at the upper end in the vertical direction on the end face of the separator vane support frame 55. With a predetermined interval. Therefore, the perforated plate 570 is provided so as to cover the lower part in the vertical direction of the moisture separation element 53 where the flow velocity of the vapor toward the separator vane 54 tends to be relatively high, so that the vapor flow velocity can be efficiently suppressed. Thus, the moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b while the pressure loss of the steam is suppressed is blown up by the dynamic pressure of the steam. Is effectively prevented, and as a result, a decrease in moisture separation performance in the moisture separation heater 517 can be suppressed. Furthermore, even if moisture staying in this region is blown up, the perforated plate 570 provided facing the steam discharge space S ₂₂ on the downstream side with respect to the flow direction of the steam functions like a weir. By restricting the moisture blow-up itself, it is possible to prevent the moisture from being transported to the steam discharge space S ₂₂ by steam.

  FIG. 10: is a fragmentary sectional view of the radial direction of the moisture separation heater based on Example 6 of this invention. The moisture separator / heater according to the sixth embodiment has substantially the same configuration as the moisture separator / heater according to the first embodiment, but the mounting position of the current plate in the separator vane support frame is the moisture separator according to the first embodiment. Different from the heater. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

  As shown in FIG. 10, the moisture separator / heater 617 as a moisture separator according to the sixth embodiment includes a porous plate 670 as a rectifying plate having a plurality of holes 670a for rectifying steam. A rail member 656g and a rail member 656h as strength members are provided inside the separator vane support frame 55, and the perforated plate 670 is attached to the separator vane support frame 55 by the rail member 656g and the rail member 656h. It is done.

  The rail member 656g and the rail member 656h are provided so as to protrude from the surface (inner surface) on the separator vane 54 side of the upper support frame 56a and the lower support frame 56b, and the end surface of the perforated plate 670 is fitted. Has a groove. The rail member 656g and the rail member 656h may be integrated with or separated from the upper support frame 56a and the lower support frame 56b as long as the perforated plate 670 can be attached to the separator vane support frame 55. Further, the rail member 656g and the rail member 656h are extended in the axial direction along the separator vane 54, and have high rigidity.

  That is, the perforated plate 670 is positioned between the upper support frame 56a and the lower support frame 56b inside the separator vane support frame 55, and the end surface is fitted in the grooves of the rail member 656g and the rail member 656h. The rail member 656g and the rail member 656h are extended in the axial direction. The rail member 656g and the rail member 656h connect the separator vane support frame 55 of the moisture separation element 53 and the porous plate 670 as a unit, and the moisture separation element 53 and the porous plate 670 form a module structure.

Then, further, in the present embodiment, the separator vane 54 is divided across the porous plate 670 with respect to the radial, i.e., first stage vanes 54a provided in the steam supply space S ₂₁ side of the porous plate 670 is constituted by a second stage vanes 54b provided in the steam discharging space S ₂₂ side. That is, the first stage vanes 54a is fixed to the surface of the steam supply space S ₂₁ side of the porous plate 670, second stage vanes 54b is fixed to the surface of the steam discharging space S ₂₂ side of the porous plate 670, thus, The separator vane 54 is fixed to both sides of the perforated plate 670 and unitized with the perforated plate 670.

  The moisture separation heater 617 is configured as described above, so that the flow of steam is rectified by the plurality of holes 670a of the perforated plate 670, and the flow velocity distribution of the steam in the moisture separation element 53 is made uniform. Is done. Further, by suppressing the uneven flow of the steam, it is possible to suppress the partial formation of a region in which the flow velocity of the steam close to the separator vane 54 is relatively high, and the steam flow velocity has an appropriate moisture content in the separator vane 54. It is prevented that the flow rate exceeds the limit flow rate at which the separation performance can be exhibited. Thereby, the residence time of the vapor in the moisture separation element 53 is sufficiently secured, and the moisture can be appropriately separated from the vapor. Further, since there is no region where the flow velocity of the steam becomes high, moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is blown up by the dynamic pressure of the steam. This is also prevented. As a result, a decrease in moisture separation performance in the moisture separation heater 617 can be suppressed.

Further, since the perforated plate 670 is unitized with the separator vane support frame 55 of the moisture separation element 53 by the rail member 656g and the rail member 656h, it can be installed in the body 40 together with the moisture separation element 53. The workability is improved and it is securely attached to the highly rigid rail member 656g and the rail member 656h, so that it is not blown away by steam, and vibrations are not generated and fatigue destruction occurs. Furthermore, for example, when it is necessary to replace the steam due to secular change, the worker can enter the steam supply space S ₂₁ or the steam discharge space S ₂₂ formed as an accessible area through the manhole 61 (see FIG. 4) from the outside. It is possible to easily enter and replace the perforated plate 670 and, depending on the situation, one of the steam supply space S _{21 and the} steam discharge space S ₂₂ can be used as an accessible area as appropriate, so that versatility is improved. be able to.

  Further, since the separator vane 54 is fixed to both sides of the perforated plate 670 and unitized with the perforated plate 670, a unit of the separator vane 54 and the perforated plate 670 can be manufactured at a factory or the like. In addition, the perforated plate 670 can be installed together with the separator vane 54 in the separator vane support frame 55, and the workability is further improved. Further, since the porous plate 670 functions as a rib with respect to the axial direction of the separator vane 54, the strength of the separator vane 54 is also improved.

Furthermore, the rail member 656g and the rail member 656h as strength members for attaching the perforated plate 670 to the separator vane support frame 55 are provided so as to protrude from the upper support frame 56a and the lower support frame 56b to the separator vane 54 side. Since the rail member 656g and the rail member 656h block the gap between the upper support frame 56a, the lower support frame 56b, and the end face of the separator vane 54, the steam does not pass through the separator vane 54 but passes through the gap to discharge the steam S _22. To be suppressed. In the case of the moisture separator / heater 617 of this embodiment, a plurality of drain openings 59 serving as drain flow paths may be provided corresponding to the first stage vane 54a side and the second stage vane 54b side, respectively. .

As described above, in the moisture separator / heater 617 according to the sixth embodiment, the rail member 656g and the rail member 656h as strength members are provided along the axial direction inside the separator vane support frame 55, and the separator vane 54 is provided. Is provided with a plurality of first-stage vanes 54a and second-stage vanes 54b along the vapor passage direction, and the perforated plate 670 is adjacent to the first-stage vane 54a side and the second-stage along the vapor passage direction. The first stage vane 54a side and the one end of the second stage vane 54b are fixedly provided between the vanes 54b. Therefore, when replacing the perforated plate 670 when the apparatus is stopped due to maintenance or the like, versatility can be improved because one of the steam supply space S _{21 and the} steam discharge space S ₂₂ can be used as an accessible area depending on the situation. Can do. Furthermore, since the separator vane 54 is fixed to both sides of the perforated plate 670 and unitized with the perforated plate 670, the manufacturing accuracy can be improved and the workability can be further improved. Further, since the porous plate 670 functions as a rib with respect to the axial direction of the separator vane 54, the strength of the separator vane 54 can be improved. Further, the rail member 656g and the rail member 656h are provided so as to protrude from the upper support frame 56a and the lower support frame 56b to the separator vane 54 side, so that the upper support frame 56a, the lower support frame 56b, and the end face of the separator vane 54 since closing the gap, steam because it is suppressed leading to the steam discharging space S ₂₂ through the gap without passing through the separator vane 54, it is possible to further improve the moisture separation performance.

  The moisture separator / heater 617 according to the sixth embodiment of the present invention described above is not limited to the above-described embodiments, and various modifications can be made within the scope described in the claims. The rail member 656g and the rail member 656h as the strength members have been described as being provided so as to protrude from the surface (inner surface) on the separator vane 54 side of the upper support frame 56a and the lower support frame 56b to the separator vane 54 side. As long as the perforated plate 670 has strength to support the separator vane support frame 55, the upper support frame 56a and the lower support frame 56b may be simply formed with grooves in which the end faces of the perforated plate 670 are fitted.

  FIG. 11 is a radial sectional view of a moisture separation heater according to Embodiment 7 of the present invention, and FIG. 12 is a schematic sectional view in the axial direction of the moisture separation heater according to Embodiment 7 of the present invention. . The moisture separator / heater according to Example 7 has substantially the same configuration as the moisture separator / heater according to Example 1, except that the rectifying plate is provided on the manifold support plate. Different from the separation heater. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

  As shown in FIGS. 11 and 12, the moisture separator heater 717 as the moisture separator according to the seventh embodiment includes a porous plate 770 as a rectifying plate having a plurality of holes 770a for rectifying steam. In this embodiment, the perforated plate 770 is attached to a support wall 48 as a manifold support plate. As described above, the support wall 48 is formed in a plate shape, and is fixed to the inner surface of the body 40 at a predetermined interval along the axial direction, and supports the manifold 49 through the manifold 49. . The perforated plate 770 is attached to the support wall 48, which is a structural member that is originally highly rigid to support the manifold 49. For example, the perforated plate 770 supports the separator vane like the moisture separation heaters of the first to sixth embodiments. Even if the strength member is not provided again on the frame 55, it can be securely attached to the body 40.

More specifically, a plurality of perforated plates 770 according to the present embodiment are provided corresponding to the plurality of support walls 48 in the steam supply space S ₂₁ along the axial direction at a predetermined interval. The perforated plate 770 is supported by the lower end surface portion of each support wall 48 in the vertical direction and the inner surface of the body 40. The perforated plate 770 may be fixed to the support wall 48 and the body 40 by bolts or welding. That is, each perforated plate 770 is provided along the cross-sectional direction (the vertical direction) in the space in communication with the lower end below the respective support walls 48 in the steam supply space S _21. As a result, each porous plate 770 is firmly supported by the highly rigid support wall 48 and the inner surface of the body 40, so that it is not blown away by steam, and vibrations are not generated and fatigue destruction occurs.

The moisture separation heater 717 is configured as described above, whereby the flow of steam blown from the plurality of outlets 50 is rectified by the plurality of holes 770a of the perforated plate 770, and the moisture separation element 53 is thus rectified. Vapor flow velocity distribution at is uniform. Further, by suppressing the uneven flow of the steam, it is possible to suppress the partial formation of a region in which the flow velocity of the steam close to the separator vane 54 is relatively high, and the steam flow velocity has an appropriate moisture content in the separator vane 54. It is prevented that the flow rate exceeds the limit flow rate at which the separation performance can be exhibited. Thereby, the residence time of the vapor in the moisture separation element 53 is sufficiently secured, and the moisture can be appropriately separated from the vapor. Further, since there is no region where the flow velocity of the steam becomes high, moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is blown up by the dynamic pressure of the steam. This is also prevented. As a result, a decrease in moisture separation performance in the moisture separation heater 717 can be suppressed. Furthermore, for example, when it becomes necessary to replace the aging due to secular change, the worker enters the steam supply space S ₂₁ formed as an accessible area through the manhole 61 (see FIG. 4) from the outside, and this is easily performed. The perforated plate 770 can be replaced.

  As described above, in the moisture separator / heater 717 according to the seventh embodiment, the body 40 formed in a cylindrical shape, and the steam inlet 41 that introduces steam containing moisture into the body 40 in the axial direction of the body 40. And a manifold 49 provided parallel to the axial direction in the body 40 and having a proximal end communicating with the steam inlet 41 and closed at the distal end, and a side portion of the manifold 49 formed at predetermined intervals along the axial direction. A plurality of outlets 50 through which steam can be discharged from the manifold 49, and a plurality of plate-like support walls 48 that are fixed to the inner surface of the body 40 side by side along the axial direction and support the manifold 49. The moisture separating element 53 that separates moisture by the passage of steam, and the steam from which moisture has been separated by the moisture separating element 53 are directed to the outside of the body 40 in a direction crossing the axial direction. Comprising a steam outlet 42 which exits the perforated plate 770 attached to the support wall 48 and having a plurality of holes 770a for rectifying the vapor blown out from the air outlet 50.

  Therefore, the steam containing moisture introduced into the body 40 from the steam inlet 41 is blown out from the plurality of outlets 50 through the manifold 49, and the moisture is separated by passing through the moisture separation element 53. . At this time, the steam blown out from the plurality of outlets 50 is rectified by passing through the perforated plate 770 having a plurality of holes 770a, and a region where the approaching flow velocity toward the separator vane 54 is relatively high is partially formed. Since it is suppressed, the fall of moisture separation performance can be suppressed. Since the porous plate 770 is attached to the support wall 48 which is originally a highly rigid structural member for supporting the manifold 49, the porous plate 770 can be securely attached to the body 40, and the number of parts and The number of work strokes during assembly can be suppressed. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

Furthermore, in the moisture separation heater 717 of the seventh embodiment as described above, steam can be supplied to the moisture separation element 53 along the inner surface of the body 40 and is formed as an accessible region. comprising a space S _21, porous plate 770, an end face portion of the support wall 48 as well as separate multiple provided steam supply space S ₂₁ arranged at predetermined intervals along the axial direction to the steam supply space S ₂₁ in the axial direction The inner surface of the body 40 is supported. Therefore, by supporting the strongly porous plate 770 by the inner surface of the high rigidity support wall 48 and the body 40 to divide the steam supply space S ₂₁ by the porous plate 770 in the axial direction, in the steam supply space S ₂₁ While rectifying the steam, it is possible to prevent the perforated plate 770 from being blown off by the steam, and it is possible to suppress the occurrence of vibration and fatigue breakdown. Further, since the even replacing the perforated plate 770 in stopping, such as by device maintenance, the perforated plate 770 to the steam supply space S ₂₁ which is formed as an accessible region is provided, the steam supply space S ₂₁ Therefore, the perforated plate 770 can be easily replaced.

  FIG. 13 is a radial cross-sectional view of a moisture separation heater according to Example 8 of the present invention, and FIG. 14 is a schematic cross-sectional view in the axial direction of the moisture separation heater according to Example 8 of the present invention. . The moisture separator / heater according to the eighth embodiment has substantially the same configuration as the moisture separator / heater according to the seventh embodiment, but the mounting position of the rectifying plate on the manifold support plate is the moisture separator / heater according to the seventh embodiment. It is different from the vessel. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

As shown in FIGS. 13 and 14, the moisture separator / heater 817 as the moisture separator according to the eighth embodiment includes a porous plate 870 as a rectifying plate having a plurality of holes 870a for rectifying steam. In this embodiment, the perforated plate 870 is supported in the steam supply space S ₂₁ by the end surface portion of the support wall 48 as an adjacent manifold support plate. As described above, the support wall 48 is formed in a plate shape, and is fixed to the inner surface of the body 40 at a predetermined interval along the axial direction, and supports the manifold 49 through the manifold 49. . That is, the plurality of perforated plates 870 are provided in the body 40 so as to be spanned along the axial direction on the end surface portions of the adjacent support walls 48.

  Thus, the perforated plate 870 is attached to the support wall 48, which is a structural member originally having high rigidity in order to support the manifold 49, so that, for example, like the moisture separation heaters of the first to sixth embodiments. Even if the strength member is not provided again on the separator vane support frame 55, it can be securely attached to the body 40. Further, since the porous plate 870 is supported by the end surface portion on the lower side in the vertical direction of the adjacent support wall 48 and is firmly supported by the support wall 48 having high rigidity, it is not blown off by steam. Vibration is generated and there is no fatigue failure.

As described above, in the moisture separator / heater 817 according to the eighth embodiment, steam can be supplied to the moisture separator 53 along the inner surface of the body 40 and the steam supply space S formed as an accessible region. _The perforated plate 870 is supported in the steam supply space S ₂₁ by the end surface portion of the adjacent support wall 48 and faces the blowout port 50. Accordingly, the porous plate 870 is firmly supported by the adjacent support wall 48 having high rigidity, and the porous plate 870 faces the blowout port 50, thereby rectifying the steam blown from the blowout port 50 and at the same time. Can be prevented from being blown off by the steam, and it is possible to suppress the occurrence of vibration and fatigue failure. Further, since the even replacing the perforated plate 870 in stopping, such as by device maintenance, the perforated plate 870 to the steam supply space S ₂₁ which is formed as an accessible region is provided, the steam supply space S ₂₁ This porous plate 870 can be easily replaced, and further, for example, as in the case of the porous plate 770 of the seventh embodiment, the space communicating below the lower end of each support wall 48 in the steam supply space S ₂₁ is closed. It will not interfere with other maintenance work.

  FIG. 15 is a radial cross-sectional view of the manifold of the moisture separation heater according to the ninth embodiment of the present invention. The moisture separator / heater according to Example 9 has substantially the same configuration as the moisture separator / heater according to Example 1, but the moisture separator according to Example 1 is provided with a rectifying plate provided on the manifold. Different from the heater. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

  As shown in FIG. 15, the moisture separator / heater 917 as a moisture separator according to the ninth embodiment includes a porous plate 970 as a rectifying plate having a plurality of holes 970a for rectifying steam. In this embodiment, the perforated plate 970 is attached to each manifold 49. That is, the perforated plate 970 is attached to the outer peripheral surface of the manifold 49 so as to cover the outside of the plurality of outlets 50. The perforated plate 970 may be fixed to the manifold 49 by bolts or welding.

The moisture separator / heater 917 is configured as described above, so that the flow of the steam blown out from the plurality of outlets 50 is immediately after the plurality of holes of the perforated plate 970 are blown out from the outlet 50. Since the flow is rectified by 970a and injected radially from the hole 970a, the flow of steam along the axial direction, that is, the axial flow is reduced, and the flow velocity distribution of the steam in the moisture separation element 53 is made uniform. Is done. Further, by suppressing the uneven flow of the steam, it is possible to suppress the partial formation of a region in which the flow velocity of the steam close to the separator vane 54 is relatively high, and the steam flow velocity has an appropriate moisture content in the separator vane 54. It is prevented that the flow rate exceeds the limit flow rate at which the separation performance can be exhibited. Thereby, the residence time of the vapor in the moisture separation element 53 is sufficiently secured, and the moisture can be appropriately separated from the vapor. Further, since there is no region where the flow velocity of the steam becomes high, moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is blown up by the dynamic pressure of the steam. This is also prevented. As a result, a decrease in moisture separation performance in the moisture separation heater 917 can be suppressed. Furthermore, for example, when it becomes necessary to replace the aging due to secular change, the worker enters the steam supply space S ₂₁ formed as an accessible area through the manhole 61 (see FIG. 4) from the outside, and this is easily performed. The perforated plate 970 can be replaced.

  Further, the perforated plate 970 is directly attached to the manifold 49, so that the body 40 can be provided without providing a strength member anew in the separator vane support frame 55 as in the moisture separator / heater of the first to sixth embodiments. Can be securely installed inside. Furthermore, since the porous plate 970 may be a size that covers the plurality of air outlets 50, it can be further reduced in size. For this reason, the porous plate 970 can be attached more easily and accurately. When replacing, the body 40 can be easily put in and out.

  As described above, in the moisture separator / heater 917 according to the ninth embodiment, the body 40 is formed in a cylindrical shape, and the steam inlet 41 that introduces steam containing moisture into the body 40 in the axial direction of the body 40. And a manifold 49 provided parallel to the axial direction in the body 40 and having a proximal end communicating with the steam inlet 41 and closed at the distal end, and a side portion of the manifold 49 formed at predetermined intervals along the axial direction. A plurality of outlets 50 through which steam can be blown out from the manifold 49, a moisture separating element 53 that separates moisture by passing through the steam, and an axis of the steam from which moisture has been separated by the moisture separating element 53 A steam outlet 42 that discharges to the outside of the body 40 in a direction that intersects the direction, and a plurality of holes 970 a that rectifies the steam blown from the outlet 50, and the manifold 49. Comprising a perforated plate 970 mounted on the outside of the outlet 50.

  Therefore, the steam containing moisture introduced into the body 40 from the steam inlet 41 is blown out from the plurality of outlets 50 through the manifold 49, and the moisture is separated by passing through the moisture separation element 53. . At this time, the steam blown out from the plurality of outlets 50 is rectified by passing through the perforated plate 970 having a plurality of holes 970a immediately after being blown out from the outlets 50, and the approaching flow velocity toward the separator vane 54 is relatively low. Therefore, it is possible to suppress a decrease in moisture separation performance. Since the porous plate 970 is directly attached to the manifold 49, the porous plate 970 can be securely attached to the body 40, and the number of parts and the number of work steps during assembly can be suppressed. Furthermore, since the porous plate 970 may be a size that covers the plurality of air outlets 50, it can be further reduced in size. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  FIG. 16: is a fragmentary sectional view of the radial direction of the moisture separation heater based on Example 10 of this invention. The moisture separator / heater according to the tenth embodiment has substantially the same configuration as the moisture separator / heater according to the first embodiment, but includes a partition in the separator vane support frame instead of the current plate and the strength member. This is different from the moisture separation heater according to the first embodiment. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

  As shown in FIG. 16, a moisture separator / heater 1017 as a moisture separator according to the tenth embodiment replaces the porous plate 70 of the first embodiment with a protruding portion 1071 as a partition portion in the separator vane support frame 55. Is provided. The protrusion 1071 protrudes from the inner surface of the separator vane support frame 55 into the gap with the separator vane 54.

  More specifically, the protrusion 1071 is provided so as to protrude from the separator vane 54 side surface (inner surface) of the upper support frame 56a to the separator vane 54 side. The protrusion 1071 is provided so as to partition the gap between the inner surface of the separator vane support frame 55 and the end surface on the upper side in the vertical direction of the separator vane 54. The protrusion 1071 may be integrated with the upper support frame 56a or may be a separate body. When forming separately from the upper support frame 56a, the protrusion 1071 may be fixed to the upper support frame 56a by welding. The protruding portion 1071 extends in the axial direction along the separator vane 54.

In the moisture separator / heater 1017 configured as described above, the protrusion 1071 is provided so as to protrude from the upper support frame 56a toward the separator vane 54, so that, for example, the separator vane 54 is vertically lowered by its own weight. even flexed to, extending from the projecting portion 1071 closes the gap between the end surface of the upper supporting frame 56a and the separator vane 54, steam through the gap without passing through the separator vane 54 to the steam discharging space S ₂₂ It is suppressed. Therefore, since high dimensional accuracy is not required when manufacturing the separator vane 54 and the separator vane support frame 55, workability is also improved. Further, for example, when it becomes necessary to replace the aging due to secular change, the worker can enter the steam supply space S ₂₁ or the steam discharge space S ₂₂ formed as an accessible area through the manhole 61 (see FIG. 4) from the outside. enters, and it is possible to improve versatility since it can be used as appropriate accessible area of one of the steam supply space S ₂₁ or the steam discharging space S ₂₂ depending on the situation with and can be easily replaced.

  As described above, in the moisture separator / heater 1017 according to the tenth embodiment, the body 40 formed in a cylindrical shape, and the steam inlet 41 that introduces steam containing moisture into the body 40 in the axial direction of the body 40. The moisture separation element 53 in which a plurality of separator vanes 54 that separate moisture by the passage of steam are arranged and supported in the axial direction by the separator vane support frame 55 and the moisture separation element 53 separate moisture. A steam outlet 42 for discharging the steam to the outside of the body 40 in a direction crossing the axial direction, and a protrusion 1071 that partitions the gap between the inner surface of the separator vane support frame 55 and the end surface of the separator vane 54.

Therefore, the steam including the moisture introduced into the body 40 from the steam inlet 41 passes through the moisture separation element 53 so that the moisture is separated. At this time, the protrusion 1071 is provided so as to partition the gap between the inner surface of the separator vane support frame 55 and the end face of the separator vane 54, so that the protrusion 1071 has a gap between the upper support frame 56 a and the end face of the separator vane 54. since closing the, because it is prevented to reach vapor through the gap without passing through the separator vane 54 to the steam discharging space S _22, it is possible to improve the moisture separation performance. For this reason, since high dimensional accuracy is not required when manufacturing the separator vane 54 and the separator vane support frame 55, workability can also be improved. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  FIG. 17: is a fragmentary sectional view of the radial direction of the moisture separation heater based on Example 11 of this invention. The moisture separator / heater according to the eleventh embodiment has substantially the same configuration as the moisture separator / heater according to the fourth embodiment. However, the moisture separator / heater according to the fourth embodiment is provided with a steam restriction plate in place of the current plate. Different from a separate heater. In addition, about the structure, effect | action, and effect which are common in Example 4, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

As shown in FIG. 17, the moisture separator / heater 1117 as the moisture separator according to the eleventh embodiment includes a plate-like (no hole) steam regulating plate 1172 that regulates the flow of steam. The steam restriction plate 1172 is cantilevered to the lower vertical wall portion 56e as a strength member provided on the separator vane support frame 55. That is, the strength member of the present invention is provided as a lower vertical wall portion 56e in the vertical direction lower portion of an end face of a steam supply space S ₂₁ side of the separator vane support frame 55. Shitatatekabe unit 56e, as described above are formed integrally with the lower support frame 56b of the separator vane support frame 55 to the steam supply space S ₂₁ side end surface of the separator vane support frame 55. Furthermore, the lower vertical wall portion 56e extends in the axial direction along the separator vane 54 and has high rigidity.

The steam restriction plate 1172 is cantilevered such that the base end is fixed to the lower vertical wall portion 56e by bolts or welding, and the tip end extends inside the separator vane support frame 55. That is, the steam restriction plate 1172 is provided on the steam supply space S ₂₁ side with an inclination toward the inside of the separator vane support frame 55. And this steam control plate 1172 is extended along the axial direction, ie, along the lower vertical wall part 56e. That is, the lower vertical wall portion 56e connects the separator vane support frame 55 of the moisture separation element 53 and the steam restriction plate 1172 into a unit, and the moisture separation element 53 and the steam restriction plate 1172 form a module structure.

In the moisture separation heater 1117 configured as described above, as described above, the plurality of outlets 50 of each manifold 49 blow out steam downward in the vertical direction, and the body in the steam supply space S ₂₁ is blown out. Since the fluid flows along the inner surface of 40, the flow velocity of the steam on the lower side in the vertical direction of the moisture separation element 53 tends to be relatively high. However, the steam is in contact with the lower vertical wall portion 56e on the lower support frame 56b. The steam restriction plate 1172 prevents the moisture from staying in the area between the lower vertical wall portion 56f and the moisture from being blown up by the dynamic pressure of the steam.

Further, since the steam regulating plate 1172 is unitized with the separator vane support frame 55 of the moisture separation element 53 by the lower vertical wall portion 56e, it can be installed in the body 40 together with the moisture separation element 53. Since its workability is improved and it is securely attached to the lower vertical wall portion 56e having high rigidity, it is not blown off by steam, and vibration is not generated and fatigue destruction occurs. Furthermore, for example, even when it is necessary to replace it due to secular change, since the steam restriction plate 1172 is provided facing the steam supply space S ₂₁ formed as an accessible area, the work is stopped when the apparatus is stopped. A member enters the steam supply space S ₂₁ from the outside through the manhole 61 (see FIG. 4), and the steam restriction plate 1172 can be easily replaced from the steam supply space S ₂₁ side. At this time, the steam restriction plate 1172 is fixed to the lower vertical wall portion 56e in a cantilever manner as described above, and stays in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b. Since it is only necessary to have a size capable of regulating the steam toward the liquid surface of moisture, for example, the size can be further reduced as compared with the porous plate 70 of the first embodiment. Can be attached more easily and accurately, and can be easily taken in and out of the body 40 during replacement.

  As described above, in the moisture separator / heater 1117 according to the tenth embodiment, the body 40 is formed in a cylindrical shape and the axial direction is set to the horizontal direction, and steam containing moisture is contained in the body 40. 40, a steam inlet 41 introduced in the axial direction, a plurality of separator vanes 54 that separate moisture by passing through the steam, are arranged side by side in the axial direction by the separator vane support frame 55, The steam outlet 42 that discharges the steam from which moisture has been separated by the separation element 53 to the outside of the body 40 in the direction intersecting the axial direction, and the strength provided at the lower end in the vertical direction on the end face of the separator vane support frame 55 It is united with the moisture separation element 53 by being attached to the lower vertical wall portion 56e as a member and below the lower end portion of the separator vane support frame 55 Toward the wall portion 56e on the inside provided with the steam restricting plate 1172 having a predetermined inclination.

  Therefore, the steam including the moisture introduced into the body 40 from the steam inlet 41 passes through the moisture separation element 53 so that the moisture is separated. At this time, the steam restriction plate 1172 is provided with an inclination inward in the vertical lower portion of the moisture separation element 53 where the approaching flow velocity of the steam to the separator vane 54 is likely to be relatively high, so that the steam is It is possible to prevent the moisture remaining in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b from moving toward the liquid surface, and the moisture is blown up by the dynamic pressure of the steam. Therefore, it is possible to suppress a decrease in moisture separation performance in the moisture separation heater 1117. Further, since the steam regulating plate 1172 is unitized with the separator vane support frame 55 of the moisture separation element 53 by the lower vertical wall portion 56e, its workability is improved and the moisture separation element 53 is securely attached. Can be attached. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  In addition, the moisture separator / heater 1117 according to the eleventh embodiment of the present invention described above is not limited to the above-described embodiment, and various modifications can be made within the scope described in the claims. The steam restriction plate 1172 may be divided into a plurality of parts in the axial direction as in the perforated plate 270 described in the second embodiment. In this case, the moisture separation heater 1117 can be further reduced in size, and its workability can be further improved.

  FIG. 18: is a fragmentary sectional view of the radial direction of the moisture separation heater based on Example 12 of this invention. The moisture separator / heater according to Example 12 has substantially the same configuration as the moisture separator / heater according to Example 1, except that a separator vane is provided with a space instead of the current plate and the strength member. This is different from the moisture separation heater according to the first embodiment. In addition, about the structure, effect | action, and effect which are common in Example 1, while overlapping description is abbreviate | omitted as much as possible, the same code | symbol is attached | subjected.

  As shown in FIG. 18, the moisture separator / heater 1217 as the moisture separator according to the twelfth embodiment replaces the porous plate 70 of the first embodiment with a plurality of separator vanes 54 each having a notch as a space portion. 1273 is provided. The notch 1273 is provided at the lower end in the vertical direction of each separator vane 54, and its upper end extends to a height substantially equal to the upper ends of the lower vertical wall portion 56e and the lower vertical wall portion 56f. In the moisture separator / heater 1217 of the present embodiment, the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is a notch 1273 formed in each separator vane 54. Is communicated in the axial direction.

  In the moisture separation heater 1217 configured as described above, the lower vertical wall portion 56e and the lower vertical wall portion on the lower support frame 56b are provided by providing a notch 1273 at the lower end in the vertical direction of each separator vane 54. Since the area | region between 56f is connected, it is suppressed that the liquid level of the moisture which stays temporarily in this area | region becomes high partially. That is, as described above, the steam blown out from each of the outlets 50 tends to have a high flow velocity on the front end side (closed end side) of the manifold 49, and thus the dynamic pressure of the steam tends to increase. For this reason, the liquid level of moisture staying in the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b is likely to be high on the tip side of the manifold 49 and easily blown up. However, in the moisture separator / heater 1217 of this embodiment, the notch 1273 communicates the area between the lower vertical wall part 56e and the lower vertical wall part 56f on the lower support frame 56b. Since the staying moisture is dispersed and uniformed in the axial direction through the notch 1273, the moisture level is prevented from becoming locally high.

  As described above, in the moisture separator / heater 1217 of the twelfth embodiment, the body 40 is formed in a cylindrical shape and the axial direction is set to the horizontal direction, and steam containing moisture is contained in the body 40. 40, a steam inlet 41 introduced in the axial direction, a plurality of separator vanes 54 that separate moisture by passing through the steam, are arranged side by side in the axial direction by the separator vane support frame 55, A steam outlet 42 for discharging the steam from which moisture has been separated by the separation element 53 to the outside of the body 40 in a direction crossing the axial direction, and a notch 1273 provided at the vertical lower ends of the plurality of separator vanes 54. Is provided.

  Therefore, the steam including the moisture introduced into the body 40 from the steam inlet 41 passes through the moisture separation element 53 so that the moisture is separated. At this time, by providing a notch 1273 at the lower end in the vertical direction of each separator vane 54, the region between the lower vertical wall portion 56e and the lower vertical wall portion 56f on the lower support frame 56b communicates. Moisture temporarily staying in the region is dispersed and uniform in the axial direction, and the liquid level is suppressed from becoming partially high, so that moisture is prevented from being blown up by the dynamic pressure of steam can do. Therefore, it is possible to suppress a decrease in moisture separation performance in the moisture separation heater 1217. Furthermore, since it is not necessary to provide a new member only by providing the notch 1273 in the separator vane 54, the workability can be improved, and if the notch 1273 is provided in the separator vane 54, Since this work only requires the installation of the separator vane 54, the number of parts and the number of work steps during assembly can be suppressed. As a result, good workability can be ensured while suppressing a decrease in moisture separation performance.

  In addition, the moisture separator which concerns on the Example of this invention mentioned above is not limited to the Example mentioned above, A various change is possible in the range described in the claim. In the above description, the rectifying plate having a plurality of holes for rectifying the vapor has been described as a perforated plate, but may be a mesh member in which holes are formed in a lattice shape. Further, the rectifying plate may be used in multiple stages by stacking perforated plates. Moreover, you may make it make the aperture ratio of a some hole differ according to the installation position of the perforated panel in a trunk | drum. That is, the aperture ratio of the plurality of holes may be partially changed according to the steam drift. The space portion may be formed by shortening the lower end in the vertical direction of the separator vane 54. In addition, the moisture separator according to the embodiment of the present invention may be configured by combining a plurality of the embodiments described above.

  The moisture separator according to the present invention secures good workability while suppressing a decrease in moisture separation performance, and can be applied to moisture separators of various plants.

It is a fragmentary sectional view of the radial direction of the moisture separation heater which concerns on Example 1 of this invention. It is a schematic sectional drawing of the axial direction of the moisture separation heater which concerns on Example 1 of this invention. It is a schematic sectional drawing of the radial direction of the moisture separation heater which concerns on Example 1 of this invention. It is a notch perspective view which shows the internal structure of the moisture separation heater which concerns on Example 1 of this invention. It is a schematic block diagram of the power plant to which the moisture separation heater based on Example 1 of this invention was applied. It is a schematic sectional drawing of the axial direction of the moisture separation heater which concerns on Example 2 of this invention. It is a fragmentary sectional view of the radial direction of the moisture separation heater which concerns on Example 3 of this invention. It is a fragmentary sectional view of the radial direction of the moisture separation heater which concerns on Example 4 of this invention. It is a fragmentary sectional view of the radial direction of the moisture separation heater which concerns on Example 5 of this invention. It is a fragmentary sectional view of the diameter direction of the moisture separation heater which concerns on Example 6 of this invention. It is a schematic sectional drawing of the radial direction of the moisture separation heater based on Example 7 of this invention. It is a schematic sectional drawing of the axial direction of the moisture separation heater which concerns on Example 7 of this invention. It is a schematic sectional drawing of the radial direction of the moisture separation heater based on Example 8 of this invention. It is a schematic sectional drawing of the axial direction of the moisture separation heater which concerns on Example 8 of this invention. It is radial direction sectional drawing of the manifold of the moisture separation heater which concerns on Example 9 of this invention. It is a fragmentary sectional view of the radial direction of the moisture separation heater which concerns on Example 10 of this invention. It is a fragmentary sectional view of the radial direction of the moisture separation heater which concerns on Example 11 of this invention. It is a fragmentary sectional view of the radial direction of the moisture separation heater which concerns on Example 12 of this invention. It is the schematic showing the conventional moisture separator.

Explanation of symbols

17, 217, 317, 417, 517, 617, 717, 817, 917, 1017, 1117, 1217 Moisture separation heater (moisture separator)
40 Body 41 Steam inlet 42 Steam outlet 43 Drain outlet 46 Heating pipe 48 Support wall (manifold support plate)
49 Manifold 50 Air outlet 52 Drain passages 53, 53a, 53b Moisture separation element 54 Separator vane 55 Separator vane support frame 56a Upper support frame (first support frame)
56b Lower support frame (second support frame)
56c, 56d Upper vertical wall (strength member)
56e, 56f Lower vertical wall (strength member)
59 Drain opening (drain flow passage)
60 Inflow chamber 61 Manhole 70a, 270a, 370a, 470a, 570a, 670a, 770a, 970a Hole 70, 270, 370, 470, 570, 670, 770, 870, 970 Perforated plate (rectifying plate)
656g, 656h Rail member (strength member)
1071 Projection (partition)
1172 Steam restriction plate 1217 Moisture separation heater 1273 Notch (space)
S ₁ Steam flow space S ₂₁ Steam supply space S ₂₂ Steam discharge space

Claims (16)

A body formed in a cylindrical shape, a steam inlet for introducing steam containing moisture into the body in the axial direction of the body, and a plurality of separator vanes that separate moisture by passing the steam are separators Moisture separation elements supported side by side in the axial direction by a vane support frame, and steam that discharges the moisture separated by the moisture separation elements to the outside of the body in a direction intersecting the axial direction A moisture separator comprising an outlet,
A rectifying plate having a plurality of holes for rectifying steam introduced from the steam inlet;
It is provided with the strength member which unitizes the moisture separation element and the current plate by being provided in the separator vane support frame and attaching the current plate.
Moisture separator. A steam supply space formed as a region capable of supplying the steam along the inner surface of the body to the moisture separation element and accessible from the outside;
The strength member is formed integrally with the separator vane support frame on the end surface of the separator vane support frame on the steam supply space side,
The baffle plate is disposed facing the steam supply space,
The moisture separator according to claim 1. A pair of manifolds provided parallel to the axial direction inside the body, with a proximal end communicating with the steam inlet and a distal end closed;
A plurality of outlets formed at predetermined intervals along the axial direction on the side of each manifold, and capable of blowing steam from each manifold;
The steam separated from the moisture is separated and formed between a pair of moisture separation elements provided opposite to each other and corresponding to the pair of manifolds, and is formed as an area accessible from the outside. A steam exhaust space,
The strength member is formed integrally with the separator vane support frame on an end surface of the separator vane support frame on the vapor discharge space side,
The baffle plate is disposed to face the vapor discharge space,
The moisture separator according to claim 1. The separator vane support frame includes a first support frame and a second support frame that respectively support opposing end portions of the separator vane and are provided with the strength member on each.
The rectifying plate is attached so as to connect the first support frame and the second support frame.
The moisture separator according to claim 2 or claim 3. As for the said fuselage, the said axial direction is set to a horizontal direction,
The strength member is provided at the lower end in the vertical direction of the end face of the separator vane support frame,
The rectifying plate has a proximal end fixed to the strength member and a distal end located at a predetermined interval with respect to an upper end in a vertical direction on an end face of the separator vane support frame.
The moisture separator according to claim 2 or claim 3. The strength member is provided along the axial direction inside the separator vane support frame,
A plurality of the separator vanes are provided along the passage direction of the steam,
The rectifying plate is provided with one end of each separator vane fixed between the separator vanes adjacent along the passing direction.
The moisture separator according to claim 1. The rectifying plate is divided into a plurality of parts with respect to the axial direction.
The moisture separator according to any one of claims 1 to 6. A trunk formed in a cylindrical shape, a steam inlet for introducing steam containing moisture into the fuselage in the axial direction of the fuselage, and a base end provided parallel to the axial direction in the fuselage. A manifold that communicates with the steam inlet and has a closed tip; a plurality of outlets that are formed at predetermined intervals along the axial direction on the side of the manifold; and that can blow out steam from the manifold; and an inner surface of the fuselage A plurality of plate-like manifold support plates that are fixed at a predetermined interval along the axial direction and that support the manifold, a moisture separation element that separates moisture by passing the steam, and In a moisture separator, comprising a steam outlet for discharging steam from which moisture has been separated by a moisture separation element to the outside of the body in a direction intersecting the axial direction,
It has a plurality of holes for rectifying the steam blown out from the outlet and includes a rectifying plate attached to the manifold support plate,
Moisture separator. A steam supply space formed as a region capable of supplying the steam along the inner surface of the body to the moisture separation element and accessible from the outside;
The rectifying plate is provided in plural in the steam supply space at predetermined intervals along the axial direction, divides the steam supply space in the axial direction, and includes an end surface portion of the manifold support plate and an inner surface of the fuselage. Characterized by being supported by
The moisture separator according to claim 8. A steam supply space formed as a region capable of supplying the steam along the inner surface of the body to the moisture separation element and accessible from the outside;
The rectifying plate is supported in the steam supply space by an end surface portion of the adjacent manifold support plate and faces the outlet.
The moisture separator according to claim 8. A trunk formed in a cylindrical shape, a steam inlet for introducing steam containing moisture into the fuselage in the axial direction of the fuselage, and a base end provided parallel to the axial direction in the fuselage. A manifold that communicates with the steam inlet and has a closed tip, a plurality of outlets that are formed at predetermined intervals along the axial direction on the side of the manifold, and that allow the steam to blow out from the manifold, and the steam passes through A moisture separation element for separating moisture, and a steam outlet for discharging the steam separated by the moisture separation element to the outside of the body in a direction intersecting the axial direction. In the moisture separator,
It has a plurality of holes for rectifying the steam blown from the blower outlet, and includes a rectifying plate attached to the outside of the blower outlet in the manifold.
Moisture separator. A body formed in a cylindrical shape, a steam inlet for introducing steam containing moisture into the body in the axial direction of the body, and a plurality of separator vanes that separate moisture by passing the steam are separators Moisture separation elements that are supported side by side in the axial direction by a vane support frame, and steam that discharges the moisture separated by the moisture separation elements to the outside of the body in a direction that intersects the axial direction A moisture separator comprising an outlet,
Characterized in that it comprises a partition for partitioning the gap between the inner surface of the separator vane support frame and the end surface of the separator vane,
Moisture separator. A body that is formed in a cylindrical shape and whose axial direction is set in a horizontal direction, a steam inlet that introduces steam containing moisture into the body in the axial direction of the body, and the steam passes through. A moisture separation element in which a plurality of separator vanes for separating moisture are arranged and supported in the axial direction by a separator vane support frame, and a direction in which the steam from which moisture has been separated by the moisture separation element intersects the axial direction In a moisture separator comprising a steam outlet for discharging to the outside of the body toward
It is united with the moisture separation element by being attached to a strength member provided at the lower end in the vertical direction on the end face of the separator vane support frame, and has a predetermined inclination inward from the lower end of the separator vane support frame. Characterized by comprising a steam regulating plate having,
Moisture separator. A body that is formed in a cylindrical shape and whose axial direction is set in a horizontal direction, a steam inlet that introduces steam containing moisture into the body in the axial direction of the body, and the steam passes through. A moisture separation element in which a plurality of separator vanes for separating moisture are arranged and supported in the axial direction by a separator vane support frame, and a direction in which the steam from which moisture has been separated by the moisture separation element intersects the axial direction In a moisture separator comprising a steam outlet for discharging to the outside of the body toward
Characterized in that it comprises a space provided at the lower end in the vertical direction of the plurality of separator vanes,
Moisture separator. A drain passage that is partitioned inside the fuselage and can contain moisture separated from steam by the moisture separation element;
A drain flow passage communicating the inside of the moisture separation element and the drain passage;
A drain outlet that is provided in communication with the drain passage in the trunk and that discharges the moisture to the outside of the trunk.
The moisture separator according to any one of claims 1 to 14. A heating pipe inserted through the body along the axial direction and capable of heating the steam upstream of the steam outlet,
The moisture separator according to any one of claims 1 to 15.

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