JP5926147B2 - Silencer for gas turbine equipment and its disassembly and assembly method - Google Patents

Description

  The present invention relates to a silencer for a gas turbine facility and a method for disassembling and assembling the silencer.

  In a gas turbine used as a power generation facility, as described in Patent Document 1, a parallel baffle type silencer is respectively installed in a part of an intake duct and an exhaust duct of a gas turbine.

  In this parallel baffle type silencer, a plurality of baffle plates can be inserted between the side walls of the duct, and one of the plurality of grooves provided in parallel to the inner surface of the upper and lower walls of the duct is placed on the upper and lower sides of the baffle plate. By inserting a protrusion provided at the end, the width of the fluid passage between the baffle plates can be freely selected and the volume reduction can be adjusted.

JP 52-125914 A

  The silencer described in Patent Document 1 is installed in a part of an intake duct or an exhaust duct of a gas turbine. For this reason, when inspecting or repairing the baffle plate against aging or corrosion due to thermal effects, damage, etc., carry the equipment into a narrow space in the intake duct or exhaust duct. As a result, work efficiency is reduced, and problems such as longer work periods and increased work costs arise. Furthermore, if the work period is prolonged, the gas turbine equipment stoppage period is prolonged, which causes a problem that the operation rate of the gas turbine equipment is significantly reduced.

  The present invention has been made to solve the above-described problems, and its purpose is to improve the work efficiency of a silencer inspection work, a repair work, etc. and to shorten the work period. It provides equipment silencers.

  In order to solve the above-mentioned problems, a silencer for a gas turbine facility according to the present invention comprises a top wall surface portion, a bottom wall surface portion, and a side wall surface portion provided between the top wall surface portion and the bottom wall surface portion. A duct, a plurality of sound absorbing panels arranged in the width direction in the silencer duct, a plurality of sound absorbing panel insertion holes arranged in parallel in the width direction on the upper wall surface of the silencer duct, and the sound absorbing Each of the panel insertion holes is closed, and a cover is detachably provided on the upper wall surface of the silencer duct so as to restrain movement of the sound absorbing panel in the depth direction of the silencer duct.

  The silencer disassembly / assembly method for a gas turbine facility according to the present invention includes an upper wall surface portion, a lower wall surface portion, and a side wall surface portion provided between the upper wall surface portion and the lower wall surface portion. A plurality of sound absorbing panels arranged in the width direction in the silencer duct, a plurality of sound absorbing panel insertion holes arranged in parallel in the width direction on the upper wall surface of the silencer duct, and the sound absorbing panel Among the covers of the silencer of the gas turbine equipment provided with a cover detachably provided on the upper wall surface of the silencer duct so as to respectively close the insertion holes, the sound absorbing panel corresponding to the sound absorbing panel to be inspected and repaired A cover is removed from the silencer duct, and the sound absorbing panel is removed from the silencer duct through the sound absorbing panel insertion hole of the silencer duct. Next, after carrying out the sound absorbing panel or a new sound absorbing panel that has been inspected and repaired, into the silencer duct through the sound absorbing panel insertion hole, the sound absorbing panel insertion hole is closed, and the sound absorbing panel The cover is attached to the silencer duct so as to restrain the movement of the silencer duct in the depth direction.

  According to the present invention, the sound absorbing panel insertion hole is provided in at least the upper wall surface of the silencer duct in the silencer, and the sound absorbing panel can be inserted into and removed from the silencer duct through the sound absorbing panel insertion hole. As a result, work efficiency such as replacement can be improved and the work period can be shortened. As a result, the gas turbine facility can be operated quickly. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a side view showing the gas turbine equipment which applied one embodiment of the silencer of the gas turbine equipment of the present invention in a partial section. It is the cross-sectional view which looked at one Embodiment of the silencer of the gas turbine equipment of this invention from the II-II arrow line of FIG. It is a perspective view which shows the sound absorption panel which comprises one Embodiment of the silencer of the gas turbine equipment of this invention shown in FIG. It is a perspective view shown in a partial cross section in the state which partially decomposed | disassembled one Embodiment of the silencer of the gas turbine equipment of this invention shown in FIG. FIG. 5 is an enlarged perspective view showing a partial cross-section of the structure for attaching the cover to the silencer duct in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 4. FIG. 3 is an exploded explanatory view showing an example of the disassembly / assembly method in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 2 and showing the operation of pulling out the sound absorbing panel from the upper wall surface side of the silencer duct. FIG. 5 is an assembly explanatory view showing an example of a disassembling and assembling method in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 2 and showing a positioning operation after the sound absorbing panel is inserted into the silencer duct. 2 shows another example of the disassembly and assembly method in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 2, in which the cover on the lower wall surface side of the silencer duct is removed from the silencer duct, and the sound absorbing panel insertion hole is formed. It is decomposition | disassembly explanatory drawing which shows the state opened. FIG. 6 is an exploded explanatory view showing another example of the disassembling and assembling method in the embodiment of the silencer for the gas turbine equipment of the present invention shown in FIG. 2 and showing the operation of pulling out the sound absorbing panel from the lower wall surface side of the silencer duct. . It is a cross-sectional view which shows other embodiment of the silencer of the gas turbine equipment of this invention.

Embodiments of a silencer for gas turbine equipment and a method for disassembling and assembling the same will be described below with reference to the drawings.
1 to 5 show an embodiment of a silencer for a gas turbine equipment of the present invention. FIG. 1 is a partial cross-sectional view of a gas turbine equipment to which an embodiment of a silencer for a gas turbine equipment of the present invention is applied. FIG. 2 is a cross-sectional view of an embodiment of the silencer of the gas turbine equipment of the present invention as viewed from the direction of arrows II-II in FIG. 1, and FIG. 3 is the gas turbine of the present invention shown in FIG. FIG. 4 is a perspective view showing a sound absorbing panel constituting an embodiment of the silencer of the facility, and FIG. 4 is a partially exploded view of the silencer of the gas turbine facility of the present invention shown in FIG. FIG. 5 is an enlarged perspective view of the structure for attaching the cover to the silencer duct in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. In FIG. 3, the X direction indicates the width direction of the silencer duct, and the Y direction indicates the depth direction of the silencer duct.

  In FIG. 1, a gas turbine facility 1 includes an air compressor 2 that compresses air from the outside, a combustor 3 that generates a combustion gas by mixing compressed air and fuel from the air compressor 2, and a combustor. A turbine 4 that is rotationally driven by the combustion gas from 3, a generator 5 that is rotated and generated by the rotational driving force of the turbine 4, a speed reducer 6 that decelerates the rotational speed of the turbine 4 and transmits it to the generator 5, A soundproof enclosure 7 is provided that surrounds the air compressor 2, the combustor 3, and the turbine 4 to block the operation sound of the gas turbine.

  On the inlet side of the air compressor 2, an air intake chamber 9 that cleans and takes in outside air by an intake filter 8, an intake silencer 10 into which intake air from the air intake chamber 9 flows, and intake air that has passed through the intake silencer 10 are air-aired. An intake duct 11 that flows into the compressor 2 is sequentially arranged to form an intake path. On the outlet side of the turbine 4, an exhaust duct 12 into which exhaust gas from the turbine 4 flows and an exhaust silencer 13 into which exhaust gas from the exhaust duct 12 flows are sequentially arranged to constitute an exhaust path.

  The intake silencer 10 and the exhaust silencer 13 reduce noise generated by the operation of the gas turbine. An inspection door 14 is provided in each of the air intake chamber 9 and the exhaust duct 12. The intake silencer 10 and the exhaust silencer 13 can be inspected by entering the inside of the inspection door 14.

  Next, detailed configurations of the intake silencer 10 and the exhaust silencer 13 described above will be described with reference to FIGS. Since the intake silencer 10 and the exhaust silencer 13 have the same configuration, the exhaust silencer 13 will be described in detail below.

  2 and 4, the exhaust silencer 13 includes a silencer comprising an upper wall surface portion 21a, a lower wall surface portion 21b, and side wall surface portions 21c and 21d provided between the upper wall surface portion 21a and the lower wall surface surface portion 21b. A duct 21 is provided. In the silencer duct 21, a plurality of sound absorbing panels 22 (five in this example) are juxtaposed in the width direction (left and right direction in FIG. 2) to form a plurality of fluid passages R in the silencer duct 21. Yes. These sound absorbing panels 22 can be inserted into and removed from the silencer duct 21 through sound absorbing panel insertion holes 24 and 25 provided in the upper wall surface portion 21a and the lower wall surface surface portion 21b of the silencer duct 21, respectively. The detailed configuration will be described later.

  The upper wall surface portion 21a, the lower wall surface surface portion 21b, and the side wall surface portions 21c, 21d of the silencer duct 21 are respectively provided with an inner plate 26, an outer plate 27, and a heat insulating member 28 loaded between the inner plate 26 and the outer plate 27. And is formed. The heat insulating member 28 prevents the exhaust gas from radiating heat to the outside of the silencer duct 21. In the upper wall surface portion 21a and the lower wall surface portion 21b of the silencer duct 21, sound absorbing panel insertion holes 24 and 25 corresponding to the number of the sound absorbing panels 22 installed in the silencer duct 21 are provided in the width direction of the silencer duct 21 (see FIG. 2). (In the left-right direction). In this example, the interval in the width direction of the sound absorption panel insertion hole 24 and the sound absorption panel insertion hole 25 (the left-right direction in FIG. 2) is made to coincide with the interval in the width direction of the sound absorption panel 22.

  The sound absorbing panel 22 reduces noise generated by the operation of the gas turbine. The number of sound absorbing panels 22 and the installation interval of the plurality of sound absorbing panels 22 are determined according to the amount of noise reduction or the like. As shown in FIGS. 2 and 3, the sound absorbing panel 22 includes a frame body 29 formed by arranging a plurality of frame plates 29 a in a grid pattern in the vertical and horizontal directions, and each space formed by the plurality of frame plates 29 a. And a plurality of perforated plates 31 having a plurality of holes 31a fixed by welding or the like on both sides of the mold body 29 (left and right direction in FIG. 2, X direction in FIG. 3). And.

  A nose 32 having a semicircular cross section is attached to an end of the mold body 29 on the exhaust gas inflow side in order to suppress air resistance.

  At both ends of the silencer duct 21 in the depth direction (the vertical direction in FIG. 2, the Y direction in FIG. 3) on the upper surface and the lower surface of the mold body 29, protrusions that fit into recesses 36 (described later) of the cover 23. 33 are provided. Each projection 33 is provided with a suspension hole 33a for lifting and hanging the sound absorbing panel 22 by a cargo handling machine such as a crane.

  2 and 4, a cover 23 is detachably provided on the upper wall surface portion 21 a and the lower wall surface portion 21 b of the silencer duct 21. The cover 23 closes the sound absorbing panel insertion holes 24 and 25 of the upper wall surface portion 21a and the lower wall surface portion 21b, and restricts the movement of the silencer duct 21 of the sound absorbing panel 22 in the depth direction (the vertical direction in FIG. 2). It is. The cover 23 includes a hollow box-shaped cover main body 34 extending in the depth direction of the silencer duct 21 (the vertical direction in FIG. 2), and a heat insulating member 35 loaded in the cover main body 34. The heat insulating member 35 prevents heat radiation of the exhaust gas to the outside of the silencer duct 21.

  At both ends of the silencer duct 21 on the silencer duct 21 side (inner side) of the cover 23 in the depth direction (vertical direction in FIG. 2), recesses 36 into which the protrusions 33 of the sound absorbing panel 22 are fitted are provided. . The projection 33 on the upper surface side or the lower surface side of the sound absorbing panel 22 is fitted into the concave portion 36 of the cover 23, whereby the depth direction of the silencer duct 21 of the sound absorbing panel 22 due to the wind pressure when exhaust gas passes (the vertical direction in FIG. 2) ) Movement is restricted.

  The cover 23 is lifted and hung by a cargo handling machine such as a crane at both ends of the silencer duct 21 on the opposite side (outside) of the silencer duct 21 of the cover main body 34 in the depth direction (the vertical direction in FIG. 2). For this purpose, two suspension portions 37 each having a through hole 37a are provided.

  As shown in FIGS. 4 and 5, one side portion 38a of the mounting member 38 having an L-shaped cross section is welded to both sides of the cover main body portion 34 (the left-right direction in FIGS. 4 and 5). It is fixed. The other side 38b of the attachment member 38 contacts the upper wall surface 21a and the lower wall surface 21b of the silencer duct 21 when the cover 23 is attached.

  The other side 38b of the attachment member 38 is provided on the upper wall surface 21a and the lower wall surface 21b of the silencer duct 21 so as to be inserted into the bolt insertion holes 38c provided on the mounting member 38 and the bolt insertion holes 38c. A plurality of bolts 39 and nuts 41 screwed into the bolts 39 through washers 40 are attached and fixed to the upper wall surface portion 21a and the lower wall surface portion 21b of the silencer duct 21.

  The cover 23 is attached to the silencer duct 21 so as to close the sound absorbing panel insertion holes 24 and 25 of the upper wall surface portion 21a and the lower wall surface portion 21b of the silencer duct 21, and exhaust gas is emitted from the sound absorbing panel insertion holes 24 and 25 of the silencer duct 21. Is prevented from leaking.

  The exhaust silencer 13 configured as described above reduces noise by the sound absorbing member 30 of the sound absorbing panel 22 when the exhaust gas passes through the fluid passage R formed between the sound absorbing panels 22.

In addition, the sound absorbing panel 22 of the exhaust silencer 13 may be corroded, broken, or peeled off the perforated plate 31 from the mold body 29 due to deterioration over time or the thermal effect of high temperature exhaust gas. In such a case, in order to repair and replace the sound absorbing panel 22, the sound absorbing panel 22 is disassembled and assembled such as pulling out the exhaust silencer 13 from the silencer duct 21 or inserting it into the silencer duct 21. An example of the method will be described with reference to FIGS.
FIG. 6 shows an example of the disassembly and assembly method in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 2, and is an exploded explanatory view showing the operation of pulling out the sound absorbing panel from the upper wall surface side of the silencer duct. FIG. 7 shows an example of a disassembling and assembling method in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 2, and is an assembly explanatory view showing the positioning operation after the sound absorbing panel is inserted into the silencer duct. is there. 6 and 7, the same reference numerals as those in FIGS. 1 to 5 are given the same reference numerals, and description thereof is omitted.

  In FIG. 5, first, the fastening of the bolt 39 and the nut 41 in the cover 23 on the upper wall surface 21a side corresponding to the sound absorbing panel 22 to be repaired or replaced is released. Next, a hook (not shown) of a cargo handling machine such as a crane is connected to the suspension portion 37 of the cover 23 via a wire W, and the cover 23 is lifted by the cargo handling machine and removed from the silencer duct 21.

  Next, as shown in FIG. 6, since the sound absorbing panel insertion hole 24 is opened by removing the cover 23 and the upper portion of the sound absorbing panel 22 is exposed, the hanging hole 33a of the protrusion 33 of the sound absorbing panel 22 is inserted into the suspension hole 33a. The hook is connected via a wire W, the sound absorbing panel 22 is lifted by a cargo handling machine, and the sound absorbing panel 22 is carried out of the silencer duct 21 through the sound absorbing panel insertion hole 24 of the upper wall surface portion 21a of the silencer duct 21. The sound absorbing panel 22 is transported to the work place, and the sound absorbing panel 22 is inspected, repaired, or replaced.

  Next, when the sound absorbing panel 22 or the new sound absorbing panel 22 that has been inspected and repaired is installed in the silencer duct 21, the reverse operation is performed. In this case, the protrusion 33 on the lower surface side of the sound absorbing panel 22 is fitted into the recess 36 of the cover 23 on the lower wall surface portion 21b side of the silencer duct 21, as shown in FIG. Thereby, the lower part of the sound absorption panel 22 is positioned with respect to the silencer duct 21.

  Further, the upper portion of the sound absorbing panel 22 is positioned with respect to the silencer duct 21 by fitting the protrusion 33 on the upper surface side of the sound absorbing panel 22 into the concave portion 36 of the cover 23. Thereafter, the cover 23 closes the sound absorbing panel insertion hole 24 by fastening the bolt 39 and the nut 41, and restricts the movement of the silencer duct 21 in the depth direction of the sound absorbing panel 22 so that the upper wall of the silencer duct 21 is restricted. It is attached and fixed to the surface portion 21a.

  As described above, the sound absorbing panel 22 is positioned in the silencer duct 21 by fitting the protrusions 33 on the upper surface side and the lower surface side into the recesses 36 of the cover 23 on the upper wall surface portion 21a and the lower wall surface surface portion 21b side. Then, the disassembly and assembly of the exhaust silencer 13 is completed.

  As described above, according to an embodiment of the silencer of the gas turbine equipment of the present invention and an example of the disassembly and assembly method thereof, the sound absorbing panel insertion hole 24 is provided in at least the upper wall surface portion 21a of the silencer duct 21 in the silencer 13, Since the sound absorbing panel 22 can be inserted into and removed from the silencer duct 21 through the sound absorbing panel insertion hole 24, the work efficiency of the sound absorbing panel 22 in the silencer 13 such as inspection, repair and replacement is improved, and the work period is shortened. be able to. As a result, the gas turbine facility can be operated quickly. Further, since the sound absorbing panel 22 in the silencer 13 can be inspected, repaired, exchanged, etc. in a good environment, work safety can be ensured.

  Further, in the present embodiment, the recesses 36 are respectively provided in the cover 23 on the upper wall surface portion 21a and the lower wall surface portion 21b side, and the protrusions that fit the recesses 36 of the cover 23 on the upper surface side and the lower surface side of the sound absorbing panel 22 are provided. Since the part 33 is provided, the movement of the silencer duct 21 of the sound absorbing panel 22 in the depth direction can be restricted, and the reliability of assembly of the sound absorbing panel 22 to the silencer duct 21 can be improved.

  In this embodiment, since the suspension hole 33a is provided in the protrusion 33 of the sound absorbing panel 22, the sound absorption panel 22 can be lifted and suspended by the cargo handling machine using the suspension hole 33a of the protrusion 33. In addition, the sound absorbing panel 22 can be easily carried into and out of the silencer duct 21. As a result, the work time for disassembling and assembling the exhaust silencer 13 can be shortened.

  Further, the protrusion 33 of the sound absorbing panel 22 is a portion that restrains the movement of the silencer duct 21 in the depth direction of the sound absorbing panel 22 and is a hanging portion for lifting and hanging the sound absorbing panel 22. For this reason, it is not necessary to provide a suspension part in the sound-absorbing panel 22, and the number of parts can be reduced and the configuration can be simplified.

  In the present embodiment, since the cover 23 is provided with the suspending portion 37, the cover 23 can be lifted and suspended by the cargo handling machine using the suspending portion 37, and the cover 23 is connected to the silencer duct 21. Attachment and removal from the silencer duct 21 can be easily performed. As a result, the work time for disassembling and assembling the exhaust silencer 13 can be shortened.

Next, another example of the disassembly / assembly method in the embodiment of the silencer of the gas turbine equipment of the present invention will be described with reference to FIGS.
FIG. 8 shows another example of the disassembling and assembling method in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 2, in which the cover on the lower wall surface side of the silencer duct is removed from the silencer duct, FIG. 9 shows another example of the disassembling and assembling method in the embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 2, and shows the sound absorbing panel as a silencer. It is decomposition | disassembly explanatory drawing which shows the operation | movement extracted from the lower wall surface part side of a duct. 8 and 9, the same reference numerals as those in FIGS. 1 to 7 are given the same reference numerals, and description thereof is omitted.

  Another example of the disassembling and assembling method in the embodiment of the silencer of the gas turbine equipment of the present invention is that the sound absorbing panel 22 is silencer compared to the example in which the sound absorbing panel 22 can be carried in and out from above the silencer duct 21. It can be carried in and out from below the duct 21.

  In another example of the method of disassembling and assembling the silencer, the cover 23 on the upper wall surface portion 21a side corresponding to the sound absorbing panel 22 to be repaired or replaced is removed from the silencer duct 21 as in the example of the disassembling and assembling method described above. After that, as shown in FIG. 8, a hook (not shown) of the cargo handling machine is connected to the suspension hole 33a of the protrusion 33 of the sound absorbing panel 22 via a wire W, and the sound absorbing panel 22 is connected to the silencer duct 21 by the cargo handling machine. Hold in.

  Next, after removing the cover 23 on the lower wall surface 21b side corresponding to the sound absorbing panel 22 to be repaired or replaced from the silencer duct 21, the sound absorbing panel 22 suspended in the silencer duct 21 as shown in FIG. The sound absorbing panel 22 is carried out to the lower side of the silencer duct 21 through the sound absorbing panel insertion hole 25 of the lower wall surface portion 21b of the silencer duct 21. The sound absorbing panel 22 carried out is inspected, repaired, or exchanged.

  Next, when the sound absorbing panel 22 or the new sound absorbing panel 22 that has been inspected and repaired is installed in the silencer duct 21 from the lower side of the silencer duct 21, the reverse operation is performed. That is, the sound absorbing panel 22 carried into the silencer duct 21 through the sound absorbing panel insertion hole 25 of the lower wall surface portion 21b of the silencer duct 21 is held in the silencer duct 21, and in this state, the cover 23 is placed in the silencer duct 21. It is attached and fixed to the lower wall surface portion 21b. Thereafter, the cover 23 is attached and fixed to the upper wall surface portion 21a of the silencer duct.

  According to another example of the disassembling and assembling method in the embodiment of the silencer of the gas turbine equipment of the present invention described above, when there is a space for carrying out the sound absorbing panel 22 downward, the upper wall surface portion 21a of the silencer duct 21 and Since the sound absorbing panel insertion holes 24 and 25 are provided in the lower wall surface portion 21b and the sound absorbing panel 22 is inserted / removed below the silencer duct 21 through the sound absorbing panel insertion hole 25 in the lower wall surface portion 21b of the silencer duct 21, the sound absorbing panel 22 in the silencer 13 is inserted. The work efficiency of inspection, repair, replacement, etc. can be improved and the work period can be shortened. As a result, the gas turbine facility can be operated quickly.

Next, another embodiment of the silencer of the gas turbine equipment of the present invention will be described with reference to FIG.
FIG. 10 is a cross-sectional view showing another embodiment of the silencer of the gas turbine equipment of the present invention. 10, the same reference numerals as those in FIGS. 1 to 9 denote the same reference numerals, and description thereof is omitted. The other embodiment of the silencer of the gas turbine equipment of the present invention shown in FIG. 10 is configured in substantially the same manner as the embodiment, but the following configuration is different.

  In one embodiment, the sound absorbing panel insertion holes 24 and 25 are provided in the upper wall surface portion 21a and the lower wall surface portion 21b of the silencer duct 21, respectively, and the cover 23 is provided in the upper wall surface portion 21a and the lower wall surface portion 21b of the silencer duct 21, respectively. In the present embodiment, the sound absorbing panel insertion hole 24 is provided only in the upper wall surface portion 21a of the silencer duct 21, and the lower end portion of the sound absorbing panel 22 is provided on the inner surface side of the lower wall surface portion 21b of the silencer duct 21. Are arranged side by side along the width direction of the silencer duct 21 (left and right direction in FIG. 10), and the cover 23 is provided only on the upper wall surface portion 21a of the silencer duct 21.

  Further, in the embodiment, the cover 23 on the upper wall surface portion 21a and the lower wall surface portion 21b side is provided with the concave portion 36 into which the upper surface side and lower surface side protrusions 33 of the sound absorbing panel 22 are fitted. In the present embodiment, the cover 23 on the upper wall surface portion 21a side is provided with a recess 36 into which the protrusion 33 on the upper surface side of the sound absorbing panel 22 is fitted, and the sound absorbing panel insertion groove 55 in the lower wall surface portion 21b of the silencer duct 21 is provided. The bottom surface of the sound absorbing panel 22 is provided with a recess 56 into which the protrusion 33 on the lower surface side is fitted.

  The sound absorbing panel 22 has an upper end portion inserted into the sound absorbing panel insertion hole 24 of the upper wall surface portion 21 a of the silencer duct 21 and a lower end portion inserted into the sound absorbing panel insertion groove 55 of the lower wall surface portion 21 b of the silencer duct 21. Further, in the sound absorbing panel 22, the projection 33 on the upper surface side is fitted in the recess 36 of the cover 23, and the projection 33 on the lower surface side is fitted in the recess 56 of the lower wall surface portion 21 b of the silencer duct 21. In this way, the sound absorbing panel 22 is positioned and held in the silencer duct 21.

  According to another embodiment of the silencer of the gas turbine equipment of the present invention, the sound absorbing panel insertion hole 24 is provided in the upper wall surface portion 21 a of the silencer duct 21 in the exhaust silencer 13, and the sound absorbing panel 22 is installed through the sound absorbing panel insertion hole 24. Since the silencer duct 21 can be inserted and removed, the same effect as that of the above-described embodiment can be obtained.

  In the present embodiment, the cover 23 is provided with a recess 36 into which the protrusion 33 on the upper surface side of the sound absorbing panel 22 is fitted, and the lower surface side of the sound absorbing panel 22 on the inner surface side of the lower wall surface portion 21b of the silencer duct 21. Since the recess 56 into which the protrusion 33 of the sound absorber 33 is fitted is provided, the movement of the silencer duct 21 in the depth direction of the sound absorbing panel 22 can be restricted, and the reliability of the assembly of the sound absorbing panel 22 to the silencer duct 21 is also improved. be able to.

  In the above-described embodiment, the bolt 39 is provided on the silencer duct 21 side, and the cover 23 is detachable from the silencer duct 21 by fastening the bolt 39 and the nut 41. The silencer duct 21 may be configured to be detachable. For example, a screw hole having a thread groove is provided in the silencer duct 21, and a bolt 39 is screwed into the screw hole to attach the cover 23 to the silencer duct 21. It can be configured.

  Moreover, in the above-mentioned embodiment, although the example which fixed the attachment member 38 of the cover 23 to the cover main-body part 34 by welding was shown, the fixing method to the cover main-body part 34 of the attachment member 38 is arbitrary, for example, The mounting member 38 can be fixed to the cover main body with a bolt or the like.

  The present invention is not limited to the above-described embodiments, and includes various modifications. The above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. For example, part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Moreover, it is also possible to add, delete, or replace another configuration for a part of the configuration of each embodiment.

10 Intake silencer (silencer)
13 Exhaust silencer (silencer)
21 Silencer duct 21a Upper wall surface portion 21b Lower wall surface portion 21c, 21d Side wall surface portion 22 Sound absorbing panel 23 Cover 24, 25 Sound absorbing panel insertion hole 33 Projection portion 33a Hanging hole 36 Recessed portion 37 Hanging portion 56 Recessed portion

Claims (8)

A silencer duct composed of an upper wall surface portion, a lower wall surface portion, and a side wall surface portion provided between the upper wall surface portion and the lower wall surface portion;
A plurality of sound absorbing panels arranged side by side in the width direction in the silencer duct;
A plurality of sound absorbing panel insertion holes provided side by side along the width direction in the upper wall surface of the silencer duct;
A cover provided on the upper wall surface of the silencer duct so as to be detachable so as to block each of the sound absorbing panel insertion holes and restrain the movement of the sound absorbing panel in the depth direction of the silencer duct. A silencer for gas turbine equipment. The silencer of the gas turbine equipment according to claim 1,
A plurality of sound absorbing panel insertion holes arranged side by side along the width direction in the lower wall surface portion of the silencer duct;
A cover detachably provided on the lower wall surface portion of the silencer duct so as to block the sound absorbing panel insertion hole of the lower wall surface portion of the silencer duct and restrain the movement of the sound absorption panel in the depth direction. And a silencer for gas turbine equipment. The silencer for gas turbine equipment according to claim 2,
Projections provided on the upper and lower surfaces of the sound absorbing panel;
A silencer for gas turbine equipment, further comprising a recess provided inside the cover and into which the protrusion fits. The silencer of the gas turbine equipment according to claim 1,
Projections provided on the upper and lower surfaces of the sound absorbing panel;
A recess that is arranged side by side in the width direction on the inner surface side of the lower wall surface portion of the silencer duct, and into which the protrusion on the lower surface side of the sound absorbing panel fits
A silencer for gas turbine equipment, further comprising a recess provided inside the cover and into which the protrusion on the upper surface side of the sound absorbing panel is fitted. In the silencer of the gas turbine equipment according to claim 3 or 4,
A silencer for gas turbine equipment, wherein a suspension hole for lifting and hanging by a cargo handling machine is provided in the projecting portion of the sound absorbing panel. In the silencer of the gas turbine equipment according to claim 1 or 2,
A silencer for gas turbine equipment, wherein the cover is provided with a suspension portion for lifting and hanging by a cargo handling machine. A silencer duct comprising an upper wall surface portion, a lower wall surface portion, and a side wall surface portion provided between the upper wall surface portion and the lower wall surface portion; and a plurality of silencer ducts arranged in parallel in the width direction in the silencer duct A sound absorbing panel, a plurality of sound absorbing panel insertion holes arranged side by side in the width direction on the upper wall surface of the silencer duct, and the upper wall surface of the silencer duct so as to block the sound absorbing panel insertion holes, respectively. The cover corresponding to the sound absorbing panel to be inspected and repaired is removed from the silencer duct among the covers of the silencer of the gas turbine equipment provided with a detachable cover.
Carrying the sound absorbing panel out of the silencer duct through the sound absorbing panel insertion hole of the silencer duct;
Next, after the sound absorbing panel or new sound absorbing panel that has been inspected and repaired is carried into the silencer duct through the sound absorbing panel insertion hole,
Disassembling and assembling a silencer for a gas turbine facility, wherein the cover is attached to the silencer duct so as to block the sound absorbing panel insertion hole and restrict movement of the silencer duct in the depth direction of the silencer duct Method. A silencer duct comprising an upper wall surface portion, a lower wall surface portion, and a side wall surface portion provided between the upper wall surface portion and the lower wall surface portion; and a plurality of silencer ducts arranged in parallel in the width direction in the silencer duct A sound absorbing panel, a plurality of sound absorbing panel insertion holes arranged in parallel in the width direction on the upper wall surface portion and the lower wall surface surface portion of the silencer duct, and the silencer duct so as to close the sound absorbing panel insertion holes, respectively. Among the covers of the silencer of the gas turbine equipment provided with a cover detachably provided on the upper wall surface portion and the lower wall surface portion, the cover corresponding to the upper side of the sound absorbing panel to be inspected and repaired is the silencer. Remove from the duct,
Holding the sound absorbing panel in the silencer duct;
Removing the cover corresponding to the lower side of the sound absorbing panel from the silencer duct;
The sound absorbing panel is carried out to the lower side of the silencer duct through the sound absorbing panel insertion hole in the lower wall surface portion of the silencer duct.
Next, the sound absorbing panel or new sound absorbing panel that has been inspected and repaired is carried into the silencer duct through the sound absorbing panel insertion hole in the lower wall surface portion of the silencer duct, and is held in the silencer duct. age,
In this state, the cover removed from the lower wall surface portion closes the sound absorbing panel insertion hole of the lower wall surface portion of the silencer duct and restrains the movement of the sound absorbing panel in the depth direction of the silencer duct. To the silencer duct,
The cover removed from the upper wall surface portion is attached to the silencer duct so as to block the sound absorbing panel insertion hole of the upper wall surface portion of the silencer duct and restrain the movement of the sound absorbing panel in the depth direction. A gas turbine equipment silencer disassembly and assembly method characterized by the above.

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