Silencer for gas turbine exhaust system

Abstract

The application relates to the technical field of sound-absorbing devices, in particular to a sound-absorbing device of a gas turbine exhaust system, which comprises a frame body and sound-absorbing cotton boards, the frame body is vertically arranged, the top end of the frame body is arranged as an air inlet end, the bottom end is arranged as an air outlet end, the sound-absorbing cotton boards are arranged in several rows in the frame body, a mounting mechanism for limiting the sound-absorbing cotton boards is arranged in the frame body, each row of the sound-absorbing cotton boards is arranged with several sound-absorbing cotton boards, a gap is reserved between two adjacent sound-absorbing cotton boards, two adjacent rows of the sound-absorbing cotton boards are arranged in a staggered mode, and the sound-absorbing cotton boards are vertically arranged. The application can improve the noise reduction effect of the sound-absorbing device of the gas turbine exhaust system.

Description

Technical Field

[0001] This application relates to the field of silencer technology, and in particular to a silencer for a gas turbine exhaust system. Background Technology

[0002] A gas turbine exhaust system includes a flue, which is a duct installed between the gas turbine exhaust port and the chimney to remove exhaust gases and reduce noise. In existing technology, exhaust flues are typically over 5 meters long, and flues of this length are usually found in the exhaust systems of smaller gas turbines. However, for large gas turbine exhaust systems, the chimney length is typically around 40-50 meters, and it becomes narrower as it grows taller, with a diameter that may only be around 3 meters. At high altitudes, when there is wind, the von Kármán vortex phenomenon can easily be generated due to the wind, and this von Kármán vortex street phenomenon can easily damage the chimney itself.

[0003] To reduce the damage to chimneys caused by the Karman vortex street, it is necessary to reduce the flow noise generated by the collision of exhaust gas with the inner wall of the chimney, thereby reducing the damage to the exhaust system caused by noise resonance.

[0004] Chinese Patent No. CN204921168U discloses an exhaust silencer for a complete gas turbine unit. It includes a resistive silencer installed in the exhaust passage of the gas turbine, employing a multi-channel plate silencer structure. This structure consists of multiple parallel plate silencers, with the gaps between adjacent silencers forming the exhaust passage. The resistive silencer has an independent housing, in which multiple parallel plate silencers are integrally installed. The inner wall of the housing is provided with an insulation layer. All parallel plate silencers are installed in the housing using an insert plate structure. This utility model, installed in the exhaust passage of a gas turbine, allows airflow while attenuating or impeding sound propagation. It exhibits a high sound absorption coefficient over a wide frequency range, has good moisture resistance, uses odorless materials that do not affect human health, and is easy to install. It is widely used in the exhaust systems of complete gas turbine units and is highly practical.

[0005] Regarding the aforementioned technologies, existing technologies employ a row of plate-type silencers arranged side-by-side within the casing, with gaps maintained between the silencers. The plate silencers absorb the sound of gas impacts, and the gas passes smoothly through the gaps, achieving noise reduction without affecting the exhaust of the gas turbine. However, there is still a possibility that the gas passes directly through the gaps without contacting the plate silencers. This lack of contact between the gas and the plate silencers results in a certain degree of noise pollution, reducing the noise reduction effect of the silencer. Summary of the Invention

[0006] In order to improve the noise reduction effect of the silencer device for the exhaust system of a gas turbine, this application provides a silencer device for the exhaust system of a gas turbine.

[0007] The silencer device for the gas turbine exhaust system provided in this application adopts the following technical solution:

[0008] A silencer for a gas turbine exhaust system includes a frame and sound-absorbing cotton panels. The frame is vertically arranged, with the top end serving as the air inlet and the bottom end as the air outlet. Several rows of sound-absorbing cotton panels are arranged within the frame. The frame is equipped with a mechanism to restrict the installation of the sound-absorbing cotton panels. Several sound-absorbing cotton panels are arranged in each row, with gaps between adjacent panels. Adjacent rows of panels are staggered. The sound-absorbing cotton panels are vertically arranged.

[0009] By adopting the above technical solution, several rows of sound-absorbing cotton panels are installed inside the frame through an installation mechanism. The sound-absorbing cotton panels between adjacent rows are staggered. During exhaust, the gas enters the frame through the air inlet and passes through the gaps of one row of sound-absorbing cotton panels, and then impacts the second row of sound-absorbing cotton panels. Compared with the existing technology, this ensures that as much gas as possible impacts the sound-absorbing cotton panels, and the sound-absorbing cotton panels absorb as much noise pollution as possible, thereby improving the noise reduction effect of the gas turbine exhaust system silencer.

[0010] Optionally, the top of the sound-absorbing cotton board is provided with two drainage slopes, which are arranged opposite each other with the bottom to top as the reference direction, and the thickness of the sound-absorbing cotton board gradually decreases.

[0011] By adopting the above technical solution, the flow-guiding slope is used to guide the gas into the space between the two sound-absorbing cotton boards, ensuring that more gas enters the gap per unit time and improving the flow of gas.

[0012] Optionally, the installation mechanism includes a support assembly and a stabilizing assembly to improve the stability of the sound-absorbing cotton board. The support assembly includes a mounting frame, a connecting frame, a support bracket, locking bolts, and locking nuts. The support bracket includes a support platform, a carrier plate, and connecting lugs. The support platform is connected to one side wall of the carrier plate and has a support groove. The carrier plate fits against the side wall of the frame. Several connecting lugs are connected to the other side wall of the carrier plate. The frame has mounting grooves corresponding to the positions of the connecting lugs. The connecting lugs pass through the mounting grooves. The connecting frame is fitted onto the connecting lugs and is located outside the frame. The mounting frame is disposed on the outer wall of the frame body. The mounting frame is provided with several sets of fixing plates, with two plates in each set. The connecting frame is located between the two fixing plates. Each set of fixing plates corresponds to one sound-absorbing cotton board. The locking bolt passes through the fixing plate, the connecting frame, and the connecting lug. The locking nut is threaded onto the locking bolt and abuts against the fixing plate. A set of support components is provided on each of the two opposite inner side walls of the frame body. During installation, the end of the sound-absorbing cotton board is embedded in the support groove. Several sets of stabilizing components are provided on the inner wall of the frame body and are located between the two sound-absorbing cotton boards.

[0013] By adopting the above technical solution, during installation, the connecting ear plate is passed through the mounting groove, the connecting frame is fitted onto the connecting ear plate, and then the mounting frame is fitted onto several connecting frames. Subsequently, the locking bolts are passed through the fixing plate, connecting frame, and connecting ear plate, and the locking nuts are rotated to restrict the support frame, connecting frame, and mounting frame. Then, the bottom end of the sound-absorbing cotton board is cut into the mounting groove to support and position the sound-absorbing panel. Finally, the stabilizing components are installed between the two sound-absorbing cotton boards to further stabilize the sound-absorbing cotton boards, thus realizing the installation of the sound-absorbing cotton boards.

[0014] Optionally, the stabilizing component includes a partition frame, a connecting frame, and a stabilizing nut. The connecting frame includes a connecting rod and an abutting frame. Four connecting rods pass through the inner wall of the frame. The abutting frame is connected between two of the connecting rods. The partition frame is a U-shaped steel and is located between two sound-absorbing cotton boards. The connecting rod passes through the partition frame. The stabilizing nut is threaded onto the connecting rod and abuts against the partition frame.

[0015] By adopting the above technical solution, when stabilizing the sound-absorbing cotton board, the connecting frame is connected to the inner wall of the frame through the connecting rod. The partition frame is placed on the connecting rod, and the stabilizing nut is rotated to install the partition frame. The partition frame abuts between the two sound-absorbing cotton boards, reducing the possibility of the sound-absorbing cotton board shaking due to gas impact, and achieving the effect of stabilizing the sound-absorbing cotton board.

[0016] Optionally, a stabilizing rod is connected between the two opposing inner sidewalls of the partition frame.

[0017] By adopting the above technical solution, the stabilizing rod is used to improve the structural strength of the partition frame and reduce the possibility of thermal deformation of the partition frame.

[0018] Optionally, a pressure-applying component is provided within the partition frame. The pressure-applying component includes a bidirectional screw, a pressure nut, and a fixing frame. The fixing frame is U-shaped, and one is connected to each of the two inner side walls of the partition frame. The two fixing frames are arranged opposite to each other. The fixing frame has a waist-shaped groove. The pressure nut is slidably fitted on the fixing frame. The end of the bidirectional screw passes through the pressure nut and the waist-shaped groove and is threadedly engaged with the pressure nut. Protective components to reduce damage to the sound-absorbing cotton board are provided on the two opposite outer side walls of the partition frame.

[0019] By adopting the above technical solution, when installing the sound-absorbing cotton board, the sound-absorbing cotton board is installed first, followed by the partition frame. If the gap between the partition frame and the sound-absorbing cotton board is small, the partition frame is affected by friction, making installation difficult; if the gap between the partition frame and the sound-absorbing cotton board is large, the partition frame does not directly contact the sound-absorbing cotton board, making the sound-absorbing cotton board prone to shaking. During pressure application, rotating the double-ended screw causes the pressure nut to move slightly, driving the connecting frame to move, applying pressure to the partition frame. The side walls of the partition frame deform slightly, and pressure is applied to the protective component, causing slight deformation of the protective component, and also applying pressure to the sound-absorbing cotton board, achieving a further stabilizing effect on the sound-absorbing cotton board. To facilitate installation, a gap exists between the partition frame and the sound-absorbing cotton board. Through the pressure application component, the side walls of the partition frame deform slightly, and in conjunction with the protective component, pressure is applied to the sound-absorbing cotton board to compensate for the gap between the partition frame and the sound-absorbing cotton board. This facilitates the installation of the partition frame and stabilizes the sound-absorbing cotton board.

[0020] Optionally, the pressure nut is hexagonal, and bending plates are connected to the opposite side walls of the pressure nut. The two bending plates are arranged opposite to each other, and the pressure nut slides on the connecting frame through the bending plates.

[0021] By adopting the above technical solution, the movement direction of the pressure nut is restricted through the cooperation of two bending plates and the connecting frame. This improves the stability of the pressure nut and provides a deformation distance for the deformation of the partition frame, allowing the partition frame to deform.

[0022] Optionally, the protective component is an abutment pad, which is a basalt fiber felt, and the protective component abuts against the partition frame and the sound-absorbing cotton board.

[0023] By adopting the above technical solutions, basalt fiber felt can maintain good flexibility in environments of 300-800 degrees Celsius, thus better protecting and pressurizing the sound-absorbing cotton board.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. Several rows of sound-absorbing cotton panels are installed inside the frame through an installation mechanism. The sound-absorbing cotton panels between adjacent rows are staggered. During exhaust, the gas enters the frame through the air inlet and passes through the gaps of one row of sound-absorbing cotton panels. Then, the gas impacts the second row of sound-absorbing cotton panels. Compared with the existing technology, this ensures that as much gas as possible impacts the sound-absorbing cotton panels, and the sound-absorbing cotton panels absorb as much noise pollution as possible, thus improving the noise reduction effect of the gas turbine exhaust system silencer.

[0026] 2. During installation, pass the connecting ear plate through the mounting groove, place the connecting frame on the connecting ear plate, and then place the mounting frame on several connecting frames. Then, pass the locking bolt through the fixing plate, connecting frame, and connecting ear plate, and rotate the locking nut to restrict the support frame, connecting frame, and mounting frame. Then, cut the bottom end of the sound-absorbing cotton board into the mounting groove to support and position the sound-absorbing panel. Then, use the stabilizing component to install between two sound-absorbing cotton boards to further stabilize the sound-absorbing cotton board, thus completing the installation of the sound-absorbing cotton board.

[0027] 3. During pressure application, rotating the double-acting screw slightly moves the pressure nut, causing the connecting frame to move and applying pressure to the partition frame. This causes slight deformation of the side walls of the partition frame, pressure on the protective component (which also deforms slightly), and pressure on the sound-absorbing cotton board, further stabilizing the sound-absorbing cotton board. To facilitate installation, a gap exists between the partition frame and the sound-absorbing cotton board. The pressure application component causes slight deformation of the side walls of the partition frame, which, in conjunction with the protective component, applies pressure to the sound-absorbing cotton board to fill this gap. This facilitates the installation of the partition frame and simultaneously stabilizes the sound-absorbing cotton board. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the silencer device of the gas turbine exhaust system in Embodiment 1 of this application.

[0029] Figure 2 This is a cross-sectional view of Embodiment 1 of this application, used to illustrate the internal structure of the silencing device.

[0030] Figure 3 This is an exploded view used in Embodiment 1 of this application to illustrate the structure of the supporting and stabilizing components.

[0031] Figure 4 This is a schematic diagram of the stabilizing component in Embodiment 1 of this application.

[0032] Figure 5 This is a schematic diagram of the stabilizing component and the pressure-applying component in Embodiment 2 of this application.

[0033] Figure 6 This is an exploded view of the pressure application component structure used in Embodiment 2 of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Sound-absorbing cotton board; 21. Drainage slope; 3. Installation mechanism; 31. Support assembly; 311. Mounting frame; 3111. Fixing plate; 312. Connecting frame; 313. Support frame; 3131. Support platform; 3132. Carrier plate; 3133. Connecting ear plate; 3134. Reinforcing rib plate; 314. Locking bolt; 315. Locking nut; 32. Stabilizing assembly; 321. Partition frame; 3211. Stabilizing rod; 322. Connecting frame; 3221. Connecting rod; 3222. Abutment frame; 323. Stabilizing nut; 4. Pressure application assembly; 41. Two-way screw; 42. Pressure nut; 421. Bending plate; 43. Fixing frame; 5. Protective component. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0036] Embodiment 1 of this application discloses a silencer device for a gas turbine exhaust system. (Refer to...) Figure 1 and Figure 2 The silencing device for the gas turbine exhaust system includes a frame 1 and sound-absorbing cotton panels 2. The frame 1 is a rectangular frame, vertically arranged, with the top end being the air inlet and the bottom end being the air outlet. Several rows of sound-absorbing cotton panels 2 are vertically arranged inside the frame 1; this embodiment uses two rows as an example. Each row of sound-absorbing cotton panels 2 has several openings, and the two rows are staggered. Two flow-guiding slopes 21 are provided at the top of the sound-absorbing cotton panels 2, facing each other with the reference direction from bottom to top. The thickness of the sound-absorbing cotton panels 2 gradually decreases.

[0037] Reference Figure 2 and Figure 3 An installation mechanism 3 is provided inside the frame 1. The installation mechanism 3 includes a support component 31 and a stabilizing component 32. Several sets of support components 31 are provided on the opposite side walls of the frame 1. Each set of support components 31 corresponds to a sound-absorbing cotton board 2. The support component 31 includes a mounting frame 311, a connecting frame 312, a support frame 313, locking bolts 314, and locking nuts 315. The support frame 313 includes a support platform 3131, a carrier plate 3132, and a connecting lug plate 3133. The carrier plate 3132 is attached to the inner wall of the frame 1. The support platform 3131 is welded to the carrier plate 3132 and has a support groove. Two reinforcing ribs 3134 are welded between the support platform 3131 and the carrier plate 3132. The reinforcing ribs 3134 are used to improve the structural strength and connection strength of the support platform 3131.

[0038] Reference Figure 3Several connecting ear plates 3133 are welded to the side wall of the carrier plate 3132 away from the support platform 3131. In this embodiment, two plates are used as an example. An installation groove is opened on the inner wall of the frame 1 at the position corresponding to the connecting ear plates 3133. The connecting ear plates 3133 pass through the installation groove and extend to the outside of the frame 1. The connecting frame 312 is fitted onto the two connecting ear plates 3133. The installation frame 311 is attached to the outer wall of the frame 1. Two fixing plates 3111 are welded to the installation frame 311 at the position corresponding to the connecting frame 312. The installation frame 311 is located between the two fixing plates 3111. The locking bolt 314 passes through the fixing plate 3111, the connecting frame 312, and the connecting ear plates 3133. The locking nut 315 is threaded onto the locking bolt 314 and presses against the fixing plate 3111. A corner of the bottom of the sound-absorbing cotton board 2 is embedded in the support groove.

[0039] Reference Figure 4 The stabilizing component 32 includes a partition frame 321, a connecting frame 322, and a stabilizing nut 323. The connecting frame 322 includes connecting rods 3221 and abutting frames 3222. Four connecting rods 3221 are inserted and welded onto the inner wall of the frame 1 at positions corresponding to the two sound-absorbing cotton panels 2. The abutting frames 3222 are welded between two connecting rods 3221 and abut against the inner wall of the frame 1. The partition frame 321 is a U-shaped steel piece, fitted onto the connecting rods 3221. Stabilizing rods 3211 are welded between the two opposite inner sidewalls of the partition frame 321, and these stabilizing rods 3211 are used to improve the structural strength of the partition frame 321. The stabilizing nut 323 is threaded onto the connecting rods 3221 and abuts against the partition frame 321.

[0040] The implementation principle of the silencing device for a gas turbine exhaust system in Embodiment 1 of this application is as follows: When installing the sound-absorbing cotton board 2, the connecting ear plate 3133 is passed through the mounting groove, the connecting frame 312 is fitted onto the two connecting ear plates 3133, and then the mounting frame 311 is fitted onto several connecting frames 312. The locking bolt 314 is passed through the fixing plate 3111, the connecting frame 312 and the connecting ear plate 3133, and the locking nut 315 is rotated to install the support assembly 31. The bottom corner of the sound-absorbing cotton board 2 is embedded in the support groove. Then, the partition frame 321 is fitted onto the connecting rod 3221, and the side wall of the partition frame 321 is attached to the silencing panel. The stabilizing nut 323 is rotated to install the partition frame 321, thereby realizing the installation of the sound-absorbing cotton board 2.

[0041] The sound-absorbing cotton panels 2 are installed in several rows inside the frame 1 through the installation mechanism 3. The sound-absorbing cotton panels 2 of adjacent rows are staggered. When exhausting, the gas enters the inside of the frame 1 through the air inlet. The gas passes through the gaps of one row of sound-absorbing cotton panels 2 and then hits the second row of sound-absorbing cotton panels 2. Compared with the existing technology, this ensures that as much gas as possible hits the sound-absorbing cotton panels 2, and the sound-absorbing cotton panels 2 absorb as much noise pollution as possible, thereby improving the noise reduction effect of the gas turbine exhaust system silencer.

[0042] Example 2: The difference between this example and Example 1 is that the structure of the separator 321 is different.

[0043] Reference Figure 4 and Figure 5 A pressure-applying component 4 is provided within the partition frame 321. The pressure-applying component 4 includes a bidirectional screw 41, a pressure-applying nut 42, and a fixing frame 43. The fixing frame 43 is U-shaped, with one welded to each of the two opposite inner sidewalls of the partition frame 321. The two fixing frames 43 are positioned opposite each other, and each fixing frame 43 has a waist-shaped groove. The pressure-applying nut 42 is hexagonal, with a bent plate 421 welded to each of the opposite sidewalls of the pressure-applying nut 42. The two bent plates 421 are positioned opposite each other, and the pressure-applying nut 42 slides onto the fixing frame 43 through the bent plates 421. The bidirectional screw 41 passes through the pressure-applying nut 42 and the waist-shaped groove, and is threadedly engaged with the pressure-applying nut 42.

[0044] Reference Figure 4 and Figure 5 Protective components 5 are fixedly connected to the two opposite outer walls of the partition frame 321. The protective components 5 are contact pads, which are basalt fiber felt.

[0045] When stabilizing the sound-absorbing cotton board, the partition frame 321 is fitted onto the connecting rod 3221, and the stabilizing nut 323 is rotated to install the partition frame 321. The double-acting screw 41 is rotated to move the pressure nut 42 to apply pressure to the fixing frame 43. The partition frame 321 deforms slightly to apply pressure to the protective part 5. The protective part 5 deforms slightly and applies pressure to the sound-absorbing cotton board 2, thus achieving the effect of stabilizing the sound-absorbing cotton board.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A silencer for a gas turbine exhaust system, characterized in that: The system includes a frame (1) and sound-absorbing cotton panels (2). The frame (1) is vertically arranged, with the top end of the frame (1) serving as the air inlet and the bottom end serving as the air outlet. Several rows of sound-absorbing cotton panels (2) are arranged inside the frame (1). An installation mechanism (3) for restricting the sound-absorbing cotton panels (2) is provided inside the frame (1). Several sound-absorbing cotton panels (2) are arranged in each row. There is a gap between two adjacent sound-absorbing cotton panels (2). The sound-absorbing cotton panels (2) are staggered between two adjacent rows. The sound-absorbing cotton panels (2) are vertically arranged.

2. The silencer for the gas turbine exhaust system according to claim 1, characterized in that: The top of the sound-absorbing cotton board (2) is provided with two drainage slopes (21), which are arranged opposite each other with the bottom to top as the reference direction. The thickness of the sound-absorbing cotton board (2) gradually decreases.

3. The silencer for the gas turbine exhaust system according to claim 1, characterized in that: The installation mechanism (3) includes a support assembly (31) and a stabilizing assembly (32) for improving the stability of the sound-absorbing cotton board (2). The support assembly (31) includes a mounting frame (311), a connecting frame (312), a support frame (313), locking bolts (314), and locking nuts (315). The support frame (313) includes a support platform (3131), a carrier plate (3132), and a connecting ear plate (3133). The support platform (3131) is connected to the carrier plate (3132). On one side wall of the frame (1), a support groove is provided on the support platform (3131). The carrier plate (3132) fits against the side wall of the frame (1). Several connecting ear plates (3133) are connected to the other side wall of the carrier plate (3132). The frame (1) has an installation groove at the position corresponding to the connecting ear plate (3133). The connecting ear plate (3133) passes through the installation groove. The connecting frame (312) is sleeved on the connecting ear plate (3133). Located outside the frame (1), the mounting frame (311) is disposed on the outer side wall of the frame (1). The mounting frame (311) is provided with several sets of fixing plates (3111), each set of fixing plates (3111) has two plates. The connecting frame (312) is located between two fixing plates (3111). One set of fixing plates (3111) corresponds to one sound-absorbing cotton board (2). The locking bolt (314) passes through the fixing plate (3111) and the connecting frame (312). The frame (312) and the connecting ear plate (3133) are connected. The locking nut (315) is threaded onto the locking bolt (314) and abuts against the fixing plate (3111). The support assembly (31) is provided on both of the two opposite inner side walls of the frame (1). During installation, the end of the sound-absorbing cotton board (2) is embedded in the support groove. The stabilizing assembly (32) is provided on several sets on the inner wall of the frame (1) and is located between the two sound-absorbing cotton boards (2).

4. The silencer for the gas turbine exhaust system according to claim 3, characterized in that: The stabilizing component (32) includes a partition frame (321), a connecting frame (322), and a stabilizing nut (323). The connecting frame (322) includes a connecting rod (3221) and an abutting frame (3222). Four connecting rods (3221) are inserted through the inner wall of the frame (1). The abutting frame (3222) is connected between two of the connecting rods (3221). The partition frame (321) is a U-shaped steel and is located between two sound-absorbing cotton boards (2). The connecting rod (3221) passes through the partition frame (321). The stabilizing nut (323) is threaded onto the connecting rod (3221) and abuts against the partition frame (321).

5. The silencer for the gas turbine exhaust system according to claim 4, characterized in that: A stabilizing rod (3211) is connected between the two opposite inner sidewalls of the partition frame (321).

6. The silencer for the gas turbine exhaust system according to claim 4, characterized in that: The partition frame (321) is provided with a pressure-applying component (4). The pressure-applying component (4) includes a bidirectional screw (41), a pressure nut (42), and a fixing frame (43). The fixing frame (43) is U-shaped and is connected to both inner walls of the partition frame (321). The two fixing frames (43) are arranged opposite to each other. The fixing frame (43) has a waist-shaped groove. The pressure nut (42) is slidably fitted on the fixing frame (43). The end of the bidirectional screw (41) passes through the pressure nut (42) and the waist-shaped groove and is threadedly fitted with the pressure nut (42). The two outer walls of the partition frame (321) opposite to each other are provided with protective parts (5) to reduce damage to the sound-absorbing cotton board (2).

7. The silencer for a gas turbine exhaust system according to claim 6, characterized in that: The pressure nut (42) is hexagonal in shape, and bending plates (421) are connected to the opposite side walls of the pressure nut (42). The two bending plates (421) are arranged opposite to each other, and the pressure nut (42) slides on the connecting frame (322) through the bending plates (421).

8. The silencer for a gas turbine exhaust system according to claim 6, characterized in that: The protective component (5) is an abutment pad, which is a basalt fiber felt. The protective component (5) abuts against the partition frame (321) and the sound-absorbing cotton board (2).

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