TWI706805B - Nozzle and desulfurization device - Google Patents

Abstract

[Problem] It is an objective to provide a nozzle and a desulfurization device that can stably fix the nozzle portion to the pipe portion with a simple configuration. [Solution] The nozzle (20) is provided with: a pipe part (21) formed with a through hole (28) on the outer peripheral surface; and a nozzle part (22) which is arranged in contact with the pipe part (21) ) At the position corresponding to the through hole (28); and the covering portion (26), covering both the pipe portion (21) and the nozzle portion (22) to cover the outer peripheral surface of the pipe portion (21) and the nozzle portion (22) The outer peripheral surface is set.

Description

Nozzle and desulfurization device

The present invention relates to nozzles and desulfurization devices.

In the prior art, in a power plant using coal or crude oil as fuel, the combustion exhaust gas (hereinafter referred to as "exhaust gas") discharged from the boiler is first made of sulfur dioxide contained in the exhaust gas (SO ₂ ) and other sulfur oxides (SOx) are removed, and then discharged into the atmosphere. As the desulfurization method of the flue gas desulfurization device applying such desulfurization treatment, there is a known liquid desulfurization method in which absorption liquid such as seawater or limestone slurry and the exhaust gas are brought into gas-liquid contact inside the desulfurization tower. Column type flue gas desulfurization device.

The liquid column method of flue gas desulfurization device is equipped with multiple nozzles inside the absorption tower, and sprays the absorption liquid from the plurality of nozzles, and makes the falling absorption liquid and the exhaust gas make gas-liquid contact , To perform desulfurization. The nozzle part is installed on the upper surface of the pipe part arranged in the horizontal direction, and is installed in plural facing upward. The absorbing liquid sprayed from the nozzle part becomes a rod-shaped water column with a slightly circular cross-section, and is sprayed up to the height of the liquid column which is determined in accordance with the pump performance or the pressure loss of the pipe. After that, near the top of the rod-shaped water column, the absorbing liquid is dispersed from the center toward the outer periphery, and then falls.

Patent Document 1 below discloses a technique related to nozzles used in the absorption tower of a flue gas desulfurization device. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 2012-179533 A

[The problem to be solved by the invention]

In the prior art, the nozzle part arranged at the nozzle of the flue gas desulfurization device is opposite to the flange formed at the pipe part, and multiple groups of screws and nuts are used to sandwich the The gasket is fixed liquid-tightly. The screw and nut are made of high-grade metal with corrosion resistance in order to prevent corrosion, and there is a problem that the manufacturing cost of the nozzle increases. In addition, it is necessary to perform the work of locking multiple groups of screws and nuts with uniform torque at each of the nozzle parts. In the nozzle installation process where most of the nozzle parts are installed at the pipe part , The department takes time and labor. Furthermore, due to the large number of parts, the system also has the problem of complicated parts management.

In the above-mentioned Patent Document 1, the above-mentioned fixing by the screw and nut is not adopted, but a nozzle holder and a mounting cap are provided, and the nozzle is set in the nozzle holder, and the mounting cap is It is screwed on the nozzle holder and comes from the middle package with a gasket to fix the nozzle to the pipe liquid-tightly. However, in this fixing method, strict management of the tightening torque of the mounting cap is required during construction. Furthermore, it is necessary to form a female thread on the inner peripheral surface of the mounting cap, and to form a male thread on the outer peripheral surface of the nozzle holder in advance, which requires labor and time in processing. Moreover, in this configuration, if the operation of the desulfurization device is continued, the locking system of the mounting cap may become loose due to vibrations, etc., and it may become impossible to stably fix the nozzle to the tube. problem.

The nozzle and the desulfurization device of the present invention were developed in view of such a situation, and its purpose is to stably fix the nozzle portion with respect to the pipe portion by a simple structure. [Means to solve the problem]

In order to solve the above problems, the nozzle and desulfurization device of the present invention adopt the following means. That is, the nozzles of several embodiments of the present invention are provided with: a pipe portion formed with a through hole on the outer peripheral surface; and a nozzle portion provided in contact with the through hole of the pipe portion Corresponding positions; and the covering portion, covering both the pipe portion and the nozzle portion and covering the outer peripheral surface of the pipe portion and the outer peripheral surface of the nozzle portion are provided.

According to this configuration, a nozzle is provided at a position corresponding to the through hole formed on the outer peripheral surface of the pipe, and the liquid or slurry flowing in the pipe is removed from the nozzle. Squirting. In the pipe portion and the nozzle portion, the covering portion is provided so as to cover both the pipe portion and the nozzle portion and cover the outer peripheral surface of the pipe portion and the outer peripheral surface of the nozzle portion. By this, the pipe part and the nozzle part system are integrated, and the nozzle part system is stably fixed with respect to the pipe part. In addition, fasteners such as screws and nuts are not used, and the nozzle part is fixed to the pipe part with a simple structure.

In the above-mentioned embodiment, the system may also be configured as: the aforementioned pipe portion is provided with: a pipe whose body is a cylindrical member; and a nozzle holder that corresponds to the through hole formed at the aforementioned pipe portion The position is provided so as to protrude in the radial direction from the outer circumferential surface of the tube, and the covering portion covers the nozzle holder and the nozzle portion so as to cover the outer circumferential surface of the nozzle holder and the nozzle The nozzle part is installed on the outer peripheral surface.

According to this structure, the nozzle holder is installed so as to protrude in the radial direction on the outer peripheral surface of the tube. In the nozzle holder and the nozzle part, the covering part is provided so as to cover the outer peripheral surface of the nozzle holder and the outer peripheral surface of the nozzle part so as to cover the nozzle holder and the nozzle part. With this, the nozzle holder and the nozzle part system are integrated, and the nozzle part system is stably fixed with respect to the nozzle holder. In addition, fasteners such as screws and nuts are not used, and the nozzle portion is fixed to the nozzle holder with a simple structure.

In the above embodiment, it may be configured such that the covering portion is not only the nozzle holder and the nozzle portion but also the tube to cover the outer peripheral surface of the pipe, the outer peripheral surface of the nozzle holder, and The above-mentioned nozzle part is installed as an outer peripheral surface.

According to this structure, at the tube, nozzle holder and nozzle part, the covering part covers the tube, nozzle holder, and nozzle part to cover the outer peripheral surface of the tube, the outer peripheral surface of the nozzle holder, and the outer peripheral surface of the nozzle part. The way is made. By this, the tube, the nozzle holder, and the nozzle part system are integrated, and the nozzle part system is stably fixed with respect to the nozzle holder. In addition, fasteners such as screws and nuts are not used, and the nozzle portion is fixed to the tube and the nozzle holder with a simple structure.

In the above-mentioned embodiment, it may be configured that the pipe part is made of fiber reinforced plastic (FRP), and the covering part is formed by impregnating glass fibers with a plastic material.

According to this structure, since the tube and the covering are made of fibers and resin and are homogeneous materials, the two are easily combined, and the nozzle is more stable with respect to the tube. And fix it firmly.

In the above embodiment, the nozzle part may be made of fiber reinforced plastic (FRP).

According to this structure, not only the pipe part and the covering part, but also the nozzle part is made of materials made of fibers and resin, and the pipe part, the nozzle part, and the covering part are made of homogeneous materials. Therefore, The pipe part and the covering part, and the nozzle part and the covering part are easily combined, and the nozzle part is more stable and firmly fixed to the pipe part.

In the above-mentioned embodiment, it may be configured such that the nozzle portion is provided with a flange projecting in the radial direction on the outer peripheral surface.

According to this configuration, on the outer peripheral surface of the nozzle portion, the flange is formed so as to protrude in the radial direction, and the nozzle portion is supported via the flange with respect to the pipe portion or the nozzle holder. Since the flange protrudes toward the radial direction of the nozzle part, the flange makes the nozzle part difficult to fall down and is stably supported.

In the above embodiment, it may be configured such that the flange is formed at an intermediate portion in the height direction of the nozzle portion.

According to this structure, the nozzle part is located at the middle part of the height direction of the nozzle part where the flange is formed, and is supported by the flange with respect to the pipe part or the nozzle holder.

In the above-mentioned embodiment, it may be configured such that the protrusion height of the nozzle holder from the outer peripheral surface of the pipe portion is 50 mm or more and 100 mm or less.

According to this structure, unlike the case where the nozzle part is fixed to the nozzle holder by a screw and a nut, the protrusion height of the nozzle part is set to 50mm or more and 100mm or less, so that the protrusion height can be kept low .

A desulfurization device according to another embodiment of the present invention is characterized in that it is provided with: the nozzle of the above-mentioned embodiment; and a foot part, which is arranged on the bottom surface of the pipe part so that the axial direction is parallel to the horizontal direction The side is set on the installation surface of the nozzle, and supports the tube part so that the bottom surface of the tube part is directly above the installation surface, so that the tube part is made by the foot Be made support. [Effects of Invention]

According to the present invention, the nozzle portion can be stably fixed to the pipe portion with a simple structure.

Hereinafter, referring to the drawings, a desulfurization device 100 according to one embodiment of the present invention will be described. As shown in FIG. 1, the desulfurization device 100 of this embodiment is provided with an absorption tower 10, a nozzle 20, a mist eliminator 30, a circulation pump 40, and the like.

The absorption tower 10 is formed so as to extend in the vertical direction, and is a cylindrical shell that serves as a passage for exhaust gas. The absorption tower 10 guides the exhaust gas containing sulfur oxides introduced from the exhaust gas introduction part 11 formed at the side to the upper side in the vertical direction. Moreover, the absorption tower 10 discharges exhaust gas from the exhaust gas discharge part 12 formed in the upper direction of a vertical direction.

The nozzle 20 is a tubular member arranged in parallel with the horizontal direction inside the absorption tower 10. As shown in FIG. 1, the nozzle 20 discharges the absorption liquid upward in the vertical direction. With this, the exhaust gas introduced from the exhaust gas introduction part 11 and the absorption liquid are brought into gas-liquid contact. Here, the absorption liquid is a liquid containing limestone. In the absorption tower 10, the sulfur oxides contained in the exhaust gas are removed by the lime gypsum method. The absorbing liquid discharged from the nozzle 20 is discharged upwards, is dispersed inside the absorption tower 10, and is accumulated at the bottom 13 of the absorption tower 10. The absorbing liquid accumulated at the bottom 13 is supplied to the nozzle 20 again by the circulating pump 40.

In addition, the absorption liquid is not limited to a liquid containing limestone, and may be seawater. When the seawater is circulated, the influence of clogging or abrasion of the nozzle portion 22 is less than that of a liquid containing limestone. Therefore, even when the tube 19 and the nozzle portion 22 are integrated by the covering portion 26 as in the present embodiment, since the exchange frequency of the nozzle portion 22 is low, the problem is unlikely to occur.

The mist eliminator 30 is, for example, a folding plate type mist eliminator, which removes the mist of the absorption liquid generated inside the absorption tower 10 by physical collision.

Next, the nozzle 20 included in the desulfurization apparatus 100 of this embodiment will be described in detail. The nozzle 20, as shown in FIG. 2 and FIG. 3, is provided with a plurality of nozzles inside the absorption tower 10 of the desulfurization device 100. The nozzle 20 is inserted from the outside to the inside through the opening 14 formed on the side surface of the absorption tower 10 and is installed at a specific position. A plurality of nozzles 20 (for example, 5) are arranged in the same plane. In addition, the nozzles 20 can also be installed in plural sections at different positions in the vertical direction.

As shown in FIGS. 2 and 3, the nozzle 20 is provided with a mounting flange 24 and a supply port 25. The installation flange 24 is a member used to install the nozzle 20 at the opening 14 provided at the absorption tower 10. The installation flange 24 is installed at the opening 14 of the absorption tower 10 by a plurality of knotting tools (not shown).

At the side of the absorption tower 10, a manhole 15 is provided for the operator to pass through. The manhole 15 can also be used when transporting maintenance parts from the outside to the inside of the absorption tower 10 or when transporting used parts and the like from the inside of the absorption tower 10 to the outside. And be used.

As shown in Figs. 4 and 5, the nozzle 20 includes a pipe portion 21, a plurality of nozzle portions 22, a covering portion 26, and a plurality of foot portions 27 and the like.

The pipe portion 21 includes, for example, a pipe 19 having a linear cylindrical member and a nozzle holder 23. Although the material of the tube 19 is not particularly limited, it is preferably a material of the same quality as the covering part 26. The tube 19 is made of fiber reinforced plastic (FRP), for example. One end of the tube 19 is formed with a supply port 25 that opens so that the absorption liquid is supplied, and the other end of the tube 19 is blocked.

As shown in FIG. 5, a through hole 28 is formed on the outer peripheral surface of the tube 19, and a nozzle holder 23 is provided at a position corresponding to the through hole 28. The through holes 28 are formed along the tube axis direction of the tube 19, and are formed in plural at equal intervals, for example. The through hole 28 is provided in such a way that when the nozzle 20 is arranged inside the absorption tower 10, it will be positioned above the tube 19 and will face upward.

The length of the tube 19 is, for example, 3 m or more and 20 m or less, and the outer diameter of the tube 19 is, for example, 200 mm or more and 400 mm or less. In addition, the size of the tube 19 is not limited to these examples.

The absorbing liquid supplied from the supply port 25 at one end of the tube 19 circulates inside the tube 19 and is supplied toward the plurality of nozzle portions 22 provided in the nozzle holder 23.

The nozzle holder 23 is, for example, a cylindrical member, and is provided at a position corresponding to the through hole 28 of the tube 19 on the outer peripheral surface of the tube 19 so as to protrude in the radial direction. The nozzle holder 23 has one end connected to the pipe 19. The nozzle holder 23 has an inner diameter that can house the nozzle portion 22 inside, and the nozzle portion 22 is inserted from the other end of the nozzle holder 23. The nozzle holder 23 is installed in such a way that when the nozzle 20 is arranged inside the absorption tower 10, it will be positioned above the tube 19 and will face upward.

Although the material of the nozzle holder 23 is not particularly limited, it is preferably a material of the same quality as the covering part 26. The nozzle holder 23 is, for example, made of fiber reinforced plastic (FRP). The nozzle holder 23 is formed integrally with the tube 19, for example.

The nozzle portion 22 is a cylindrical member, and a flow path parallel to the tube axis direction is formed inside. The nozzle portion 22 is an absorbing liquid that is supplied to the inside from the opening 22a on one end side, and ejects to the outside from the opening 22b on the other end side.

The nozzle part 22 is inserted into the above-mentioned nozzle holder 23 and arranged at the pipe part 21. Therefore, when the nozzle part 22 is arranged in the absorption tower 10, the nozzle part 22 will be positioned on the upper surface of the pipe part 21, and will become upwards, and is installed. The nozzle 22 is located inside the absorption tower 10, and guides the absorption liquid upward in the vertical direction. The absorbing liquid sprayed from the nozzle part 22 becomes a rod-shaped water column with a substantially circular cross-section, and is sprayed up to the height of the liquid column determined in accordance with the pump performance or the pressure loss of the pipe. After that, near the top of the rod-shaped water column, the absorbing liquid is dispersed from the center toward the outer periphery, and then falls.

Although the material of the nozzle part 22 is not limited, it is ideal if it is the same material as the covering part 26. When the nozzle portion 22 and the covering portion 26 are made of the same material, the nozzle portion 22 and the covering portion 26 are easily combined, and the nozzle portion 22 is more stable and firmly fixed to the pipe portion 21. The nozzle part 22 is made of fiber reinforced plastic (FRP), for example. In addition, the material of the nozzle part 22 may be SiC (silicon carbide) or the like.

The outer peripheral surface of the nozzle portion 22 is provided with a flange 31 that is perpendicular to the axial direction of the nozzle portion 22 and protrudes in the radial direction. The flange 31 is, for example, an annular plate-shaped member. The flange 31 is as shown in FIG. 5, for example, is provided at the middle part of the nozzle part 22 in the height direction. The flange 31 of the nozzle portion 22 is in a state where a part (the lower half) of the nozzle portion 22 is inserted into the nozzle holder 23 and abuts against the upper surface of the nozzle holder 23. With the flange 31 of the nozzle part 22, the insertion position of the nozzle part 22 is restricted.

On the upper surface of the nozzle holder 23, a flange 32 protruding toward the radial direction of the nozzle holder 23 may also be provided. The flange 31 of the nozzle portion 22 and the flange 32 of the nozzle holder 23 are parallel to each other and are in surface contact. The protrusion direction of the flange 32 of the nozzle holder 23 is parallel to the tube axis direction of the tube 19. With this, when the nozzle portion 22 is inserted into the nozzle holder 23 and the flange 31 of the nozzle portion 22 and the flange 32 of the nozzle holder 23 make surface contact, the tube axis direction of the nozzle portion 22 is relative to the tube 19 becomes vertical. Therefore, it is easy to determine the installation direction of the nozzle portion 22.

As shown in FIG. 5, at the pipe 19, the nozzle holder 23, and the nozzle portion 22, the covering portion 26 covers the pipe 19, the nozzle holder 23 and the nozzle portion 22 and covers the outer peripheral surface of the pipe 19 in a liquid-tight manner. It is installed in the same manner as the outer peripheral surface of the nozzle holder 23 and the nozzle portion 22. By this, the tube 19, the nozzle holder 23, and the nozzle portion 22 are integrated, and the nozzle portion 22 is stably fixed with respect to the tube portion 21. Moreover, fasteners such as screws and nuts are not used, and the nozzle portion 22 is fixed to the pipe portion 21 with a simple structure. Furthermore, at the site where the desulfurization device 100 is installed, it is possible to omit the work of integrating the pipe section 21 and the nozzle section 22 with a screw and a nut, thereby enabling cost reduction.

Also, especially when the flanges 31 and 32 are formed, if the flange 31 of the nozzle part 22 and the flange 32 of the nozzle holder 23 are in surface contact, the covering part 26 covers the outer peripheral surface. , Even if a pull-out force acts on the nozzle section 22, the pull-out is suppressed by the covering section 26 bent along the flanges 31 and 32. Therefore, the tube 19, the nozzle holder 23, and the nozzle portion 22 can be more firmly fixed.

The covering part 26 is formed by impregnating glass fiber with a plastic material. Since the pipe portion 21 and the covering portion 26 are made of fiber and resin and are of the same quality, the two are easily combined. As a result, the nozzle portion 22 inserted into the nozzle holder 23 of the pipe portion 21 is more stably and firmly fixed to the pipe portion 21 via the covering portion 26.

The coating method of the coating portion 26 on the tube 19, the nozzle holder 23, and the nozzle portion 22 is applicable to a general technique performed by impregnating glass fiber with a plastic material. For example, before the plastic is hardened, the material is wound around the tube 19, the nozzle holder 23, and the nozzle portion 22 and then hardened, or the material is first coated and then hardened.

The covering part 26 covered by the above-mentioned method integrates the tube 19 with the nozzle holder 23 and the nozzle part 22. As a result, the nozzle part 22 is stably fixed with respect to the pipe part 21 with a simple structure.

In addition, the present embodiment is not limited to the case where the tube 19, the nozzle holder 23, and the nozzle portion 22 are provided with the covering portion 26 as shown in FIG. 5. As shown in FIG. 7, the tube 19 is not provided with a covering portion 26. At the nozzle holder 23 and the nozzle portion 22, the covering portion 26 covers the nozzle holder 23 and the nozzle portion 22. It is provided so that the outer peripheral surface of the nozzle holder 23 and the outer peripheral surface of the nozzle part 22 may be covered. With this, the nozzle holder 23 and the nozzle portion 22 are integrated. In the modification shown in FIG. 7, the nozzle portion 22 is also stably fixed with respect to the nozzle holder 23. In addition, fasteners such as screws and nuts are not used, and the nozzle portion 22 is fixed to the nozzle holder 23 with a simple structure.

The plurality of feet 27 are as shown in FIG. 4, and are members arranged at the lower end of the tube 21. The legs 27 are arranged in plural places including the front end of the tube 21. The load of the tube part 21 is transmitted to the tube support member (support part) 91, the support beam (support part) 92, and the support beam (support part) 93 through the plurality of legs 27. The tube support member 91, the support beam 92, and the support beam 93 are members that support the nozzle 20 installed in the absorption tower 10.

The leg portion 27 is such that the bottom surface is set on the setting surface which is the upper surface of the tube support member 91, the support beam 92 or the support beam 93. In addition, the leg portion 27 is connected to the pipe 19 of the pipe portion 21 at its upper end, for example. The height of the foot 27 is the height from the bottom surface of the foot 27 to the upper end of the foot 27.

The height of the feet 27 is ideally kept as low as possible. The nozzle 20 is inserted from the outside to the inside through the opening 14 formed on the side surface of the absorption tower 10 with the legs 27 installed at the pipe 19 and installed at a specific position . By suppressing the height of the legs 27 to suppress the height of the entire nozzle 20, the height of the opening 14 can be reduced, and the decrease in the strength of the absorption tower 10 can be suppressed.

As shown in FIG. 6, the height of the leg portion 27 is set so that the bottom of the tube portion 21 becomes the vicinity of the installation surface of the leg portion 27. At this time, the width of the lowermost part of the leg 27 is preferably the same as the diameter of the tube 19 of the tube 21, or is larger than the diameter of the tube 19. With this, the hole for inserting the screw 33 that connects the leg portion 27 and the tube support member 91, the support beam 92 or the support beam 93 to the joint can be provided at a position further away from the tube 21. , Even when the height of the foot 27 is low, compared to the case where the width of the bottom part of the foot 27 is smaller than the diameter of the tube 19, it is easy to make the body as the tube support member 91, The screw 33 and the nut 34 that support the beam 92 and the coupling means of the support beam 93 perform the work of conclusion.

The protrusion length of the flange 31 of the nozzle part 22 is, for example, 10 mm or more and 30 mm or less. When the screw is penetrated through the flange 31 and the screw and nut are combined as in the prior art, the protrusion length of the flange 31 takes into account the thickness of the screw shaft, and for example, it needs to be 45 mm or more. On the other hand, in this embodiment, the nozzle 22 is fixed to the nozzle holder 23 by the covering part 26 without using the coupling ground caused by the screw and nut. Therefore, the convex The protruding length of the rim 31 is shortened. The protrusion length of the flange 32 of the nozzle holder 23 is, for example, the same as the protrusion length of the flange 31 of the nozzle portion 22.

Regarding the nozzle holder 23, the protrusion height of the nozzle holder 23 from the outer circumferential surface of the tube 19 is, for example, 50 mm or more and 100 mm or less. By setting the protrusion height of the nozzle holder 23 to 50 mm or more, the winding or coating system of the above-mentioned covering portion 26 to the nozzle holder 23 becomes easy. As a result, the nozzle portion 22 is reliably fixed to the nozzle holder 23. In addition, as described above, the nozzle 20 is inserted from the outside to the inside through the opening 14 formed on the side surface of the absorption tower 10 and installed at a specific position. By setting the protrusion height of the nozzle holder 23 to 100 mm or less, the height of the opening 14 can be reduced, and the reduction in the strength of the absorption tower 10 can be suppressed.

In addition, in the above-mentioned embodiment, although the case where the nozzle holder 23 is provided in the pipe part 21 and the pipe 19 was demonstrated, this invention is not limited to this example. For example, the nozzle holder 23 may not be provided at the pipe 19, and the nozzle portion 22 may be directly provided at the pipe 19. In this case, the flange 31 of the nozzle portion 22 is not provided at the middle portion of the nozzle portion 22 in the height direction, but is provided at one end of the nozzle portion 22, and the flange 31 is along the pipe 19 The outer peripheral surface is set. On the pipe 19 and the nozzle portion 22, the covering portion 26 is provided so as to cover the pipe 19 and the nozzle portion 22 so as to cover the outer circumferential surface of the pipe 19 and the outer circumferential surface of the nozzle portion 22. By this, the tube 19 and the nozzle portion 22 are integrated, and the nozzle portion 22 is stably fixed with respect to the tube 19.

In addition, in the above-mentioned embodiment, although the case where the screw and nut are not used in the combination of the flange 31 of the nozzle portion 22 and the flange 32 of the nozzle holder 23 has been described, the present invention The line is not limited to this example. It can also be combined with the covering part 26 by the screw and the nut. In this case, since the integration by the covering part 26 is performed, the number of screws and nuts at one nozzle part 22 can also be reduced compared to the prior art. Moreover, if the surface of the screw and the nut is covered by the covering part 26, the screw and the nut may not be made of high-grade metal with corrosion resistance.

10‧‧‧Absorption Tower 11‧‧‧Exhaust Gas Introduction Department 12‧‧‧Exhaust gas discharge part 13‧‧‧Bottom 14‧‧‧Opening 15‧‧‧Manhole 19‧‧‧Tube 20‧‧‧Nozzle 21‧‧‧Management Department 22‧‧‧Nozzle 22a‧‧‧Open 22b‧‧‧Open 23‧‧‧Nozzle Support 24‧‧‧Mounting flange 25‧‧‧Supply port 26‧‧‧Recovered Department 27‧‧‧Foot 28‧‧‧Through hole 30‧‧‧Demister 31‧‧‧Flange 32‧‧‧Flange 33‧‧‧Screw 34‧‧‧Nut 40‧‧‧Circulating pump 91‧‧‧Pipe auxiliary components 92、93‧‧‧Support beam 100‧‧‧Desulfurization device

[Fig. 1] is a longitudinal sectional view showing the schematic configuration of a desulfurization device according to one embodiment of the present invention. [Figure 2] is a side view showing the nozzle of the desulfurization device shown in Figure 1. [Fig. 3] is a plan view of the nozzle shown in Fig. 2 viewed from above. [Figure 4] is a view from the arrow direction of the IV-IV line showing the nozzle of the desulfurization device shown in Figure 2. [Figure 5] is a longitudinal sectional view showing a nozzle of a desulfurization device according to one embodiment of the present invention. [Figure 6] is a longitudinal sectional view showing the nozzles and legs of a desulfurization device according to one embodiment of the present invention. [Fig. 7] is a longitudinal sectional view showing a modification of the nozzle of the desulfurization device according to one embodiment of the present invention.

19‧‧‧Tube

20‧‧‧Nozzle

21‧‧‧Management Department

22‧‧‧Nozzle

23‧‧‧Nozzle Support

26‧‧‧Recovered Department

27‧‧‧Foot

28‧‧‧Through hole

31‧‧‧Flange

32‧‧‧Flange

33‧‧‧Screw

34‧‧‧Nut

91‧‧‧Pipe auxiliary components

92、93‧‧‧Support beam

Claims (7)

A nozzle is characterized in that it is provided with: a pipe portion having a through hole formed on the outer peripheral surface; and a nozzle portion provided at a position corresponding to the through hole of the pipe portion; and a coating The part is provided so as to cover both the tube part and the nozzle part and cover the outer peripheral surface of the tube part and the outer peripheral surface of the nozzle part; the tube part is provided with: a tube, a cylinder Member; and a nozzle holder, which is formed at a position corresponding to the through hole formed at the pipe portion, and is provided to protrude toward the radial direction of the pipe at the outer peripheral surface of the pipe, the nozzle holder is On the outer peripheral surface of the end of the nozzle holder in the protruding direction, there is a holder-side flange protruding in the radial direction of the nozzle holder; the nozzle portion is provided on the outer peripheral surface of the nozzle portion facing the nozzle The nozzle portion side flange that protrudes in the radial direction of the portion; the covering portion is provided so as to cover both the nozzle holder and the nozzle portion in a state where the holder side flange and the nozzle portion side flange surface are in contact The outer peripheral surface of the nozzle holder and the outer peripheral surface of the nozzle portion. As for the nozzle described in the first item of the scope of patent application, the covering part is not only the nozzle holder and the nozzle part, but also the pipe to cover the outer peripheral surface of the pipe and the nozzle holder. The outer peripheral surface and the outer peripheral surface of the aforementioned nozzle portion are provided. The nozzle described in item 1 or 2 of the scope of patent application, wherein the tube portion is made of fiber reinforced plastic, and the covering portion is formed by impregnating glass fibers with plastic. Such as the nozzle described in item 3 of the scope of patent application, wherein the aforementioned nozzle part is made of fiber reinforced plastic. The nozzle described in the first item of the patent scope of the application, wherein the flange on the side of the nozzle portion is formed at the middle portion of the nozzle portion in the height direction. Such as the nozzle described in item 1 or item 2 of the scope of patent application, wherein the protrusion height of the nozzle holder from the outer peripheral surface of the pipe portion is 50 mm or more and 100 mm or less. A desulfurization device, characterized in that it is equipped with: a nozzle as described in any one of items 1 to 6 in the scope of the patent application; And the leg part is set at the bottom surface side of the aforementioned tube part so that the axial direction is parallel to the horizontal direction, is provided at the installation surface of the aforementioned nozzle, and supports the aforementioned tube part so that the aforementioned tube part The bottom surface becomes directly above the installation surface, so that the tube portion is supported by the leg portion.

Images