CN218542411U

CN218542411U - Silencing gas turbine air inlet system

Info

Publication number: CN218542411U
Application number: CN202223178511.1U
Authority: CN
Inventors: 黄水荣; 宋宏彬
Original assignee: Jiangsu Huanan New Energy Technology Co ltd
Current assignee: Jiangsu Huanan New Energy Technology Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-02-28
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to a gas turbine equipment field discloses amortization gas turbine air intake system, and it includes horizontal pipe and vertical pipe, and vertical pipe lateral wall is worn to establish by the horizontal pipe to with vertical intraduct intercommunication, the diameter that is less than vertical pipe of horizontal pipe, vertical intraduct is provided with the subassembly of making an uproar of inhaling, inhales the subassembly of making an uproar and includes a plurality of noise elimination rings that set up along vertical pipe length direction interval. The air inlet noise reduction device has the effect of reducing air inlet noise of the gas turbine on the premise of ensuring the air inlet speed of the gas turbine.

Description

Silencing gas turbine air inlet system

Technical Field

The application relates to the field of combustion engine equipment, in particular to a silencing combustion engine air inlet system.

Background

The gas turbine is an internal combustion type power machine which takes continuously flowing gas as a working medium to drive an impeller to rotate at a high speed and converts the energy of fuel into useful work, and is a rotary impeller type heat engine.

In the gas inlet process of the gas turbine, the gas is easy to rub and vibrate to generate noise, and particularly, in the bent position, the flowing gas is easy to form vortex, so that great noise is generated.

Chinese patent with publication number CN208168986U discloses a amortization gas turbine air intake system, including horizontal pipe and vertical pipe, horizontal pipe and vertical pipe are the rectangular pipe, and vertical union coupling is in the horizontal pipe below, and vertical pipe upper end center coincides with horizontal pipe bottom surface center, and horizontal pipe and vertical intraductal chamber intercommunication, horizontal pipe both ends opening, horizontal pipe opening part has the weather shield, the weather shield cuts off horizontal pipe intracavity, and vertical intraductal chamber is opened to vertical pipe lower extreme has the gas outlet, the vertical intraductal chamber of vertical pipe is vertical installs the acoustical panel, the acoustical panel has the polylith, the acoustical panel is on a parallel with vertical pipe left surface, the acoustical panel includes two-layer mesh board, it is cotton to fill the amortization between two-layer mesh board.

In view of the above related technologies, the inventor believes that the defect of the air inlet speed of the vertical pipe is overcome because the sound-absorbing plate of the air inlet system of the sound-absorbing combustion engine is parallel to the left side surface of the vertical pipe, the sound-absorbing plate is communicated with the vertical pipe, and the sound-absorbing plate blocks the vertical pipe at the rear side surface.

SUMMERY OF THE UTILITY MODEL

In order to reduce the air inlet noise of the gas turbine on the premise of ensuring the air inlet speed of the gas turbine, the application provides an air inlet system of a silencing combustion engine.

The application provides a amortization combustion engine air intake system adopts following technical scheme:

the utility model provides a amortization combustion engine air intake system, includes horizontal pipe and vertical pipe, the horizontal pipe is worn to establish vertical tub of lateral wall, and with the inside intercommunication of vertical pipe, being less than of the diameter of horizontal pipe the diameter of vertical pipe, vertical intraduct is provided with inhales the subassembly of making an uproar, it includes a plurality of edges to inhale the subassembly of making an uproar the noise elimination ring that vertical pipe length direction interval set up.

Through adopting above-mentioned technical scheme, when gas turbine breathes in through horizontal pipe and vertical pipe, outside gas gets into vertical intraduct through horizontal pipe both ends, when outside gas changes over to vertical intraduct into, because the diameter of vertical pipe is greater than the diameter of horizontal pipe, and vertical pipe length direction interval is provided with the noise elimination ring, the sound wave is in the expansion and the shrink of running into that the cross-section of pipeline is not stopped in the transmission process, arouses characteristic impedance to change, makes a considerable part sound wave reflect, until disappearing. Meanwhile, the sound waves are absorbed through the noise absorption assembly, and further, the air inlet noise of the gas turbine is reduced on the premise of ensuring the air inlet speed of the gas turbine.

Optionally, a noise reduction coating is arranged on the inner side wall of the vertical pipe.

Through adopting above-mentioned technical scheme, when the sound wave contacts with the coating of making an uproar that falls, the coating of making an uproar falls and absorbs the sound wave to change into heat energy, thereby reduce inlet duct's noise.

Optionally, the silencing cotton is arranged inside the silencing ring.

By adopting the technical scheme, the sound wave acts on the silencing cotton, so that the tiny fibers in the silencing cotton vibrate, the sound wave of the noise is converted into heat energy, and the noise generated by the gas is reduced.

Optionally, the silencing ring comprises a support ring arranged on the inner side wall of the vertical pipe, a reflection ring arranged at the top of the support ring and a blocking ring arranged at the bottom of the support ring, inner rings of the reflection ring and the blocking ring are detachably connected with the support ring, outer rings of the reflection ring and the blocking ring are detachably connected with the inner side wall of the vertical pipe, a placement area is formed among the support ring, the reflection ring and the blocking ring and the inner side wall of the vertical pipe, and the silencing cotton is arranged at the placement area.

Through adopting above-mentioned technical scheme, reflection ring, support ring and barrier ring three carry on spacingly to the amortization cotton, have reduced the possibility that the amortization cotton breaks away from vertical pipe. Simultaneously, after the long-time practical silencing cotton, the reflection ring and the blocking ring are detachably connected with the support ring, so that the silencing cotton is convenient to replace

Optionally, the reflection ring is inclined towards the air inlet end of the vertical pipe.

Through adopting above-mentioned technical scheme, when the sound wave of noise is close to the reflection ring, because the reflection ring slope sets up, the air inlet end and subsequent sound wave that partial sound wave reflection returned vertical pipe strike, and then, have reduced the noise. Meanwhile, the reflection ring reflects the sound waves to other components of the noise absorption assembly, and then the noise absorption assembly is convenient to absorb the sound waves, so that the noise generated by gas is reduced.

Optionally, the reflection ring is provided with a plurality of reflection grooves, the reflection grooves are all through grooves, and the axes of the reflection grooves in the length direction are intersected with the axis of the reflection ring.

Through adopting above-mentioned technical scheme, the reflex groove is convenient for carry out the acoustic wave and contact with the amortization cotton under the prerequisite that the acoustic wave was reflected at the reflection ring, and then, has reduced the noise that gaseous produced.

Optionally, a handle is arranged on one side of the blocking ring away from the support ring.

Through adopting above-mentioned technical scheme, the staff of being convenient for of handle installs and dismantles the barrier plate.

Optionally, a filter screen is arranged at the air inlet end of the horizontal pipe.

Through adopting above-mentioned technical scheme, the filter screen has reduced the impurity in the air and has got into the amortization cotton, reduces amortization cotton life's possibility, simultaneously, has also reduced the impurity in the air and has got into inside the gas wheel base, damages the possibility of gas turbine internals.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when gas turbine breathes in through horizontal pipe and vertical pipe, inside external gas got into vertical intraductal through horizontal pipe both ends, when external gas changes over into vertical intraduct, because the diameter of vertical pipe is greater than the diameter of horizontal pipe, and vertical pipe length direction interval is provided with the noise elimination ring, the sound wave meets expansion and shrink incessantly at the cross-section of transmission in-process pipeline, arouses characteristic impedance to change, makes a considerable part sound wave reflect, until disappearing. Meanwhile, the noise absorption assembly is used for absorbing sound waves, so that the air inlet noise of the gas turbine is reduced on the premise of ensuring the air inlet speed of the gas turbine;

2. when the sound waves are contacted with the noise reduction coating, the noise reduction coating absorbs the sound waves and converts the sound waves into heat energy, so that the noise of the air inlet pipeline is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram showing a structure of a noise absorbing assembly in an embodiment of the present application.

Fig. 3 is a schematic diagram showing a positional relationship between the sound-deadening ring and the sound-deadening cotton in the embodiment of the present application.

Description of the reference numerals:

1. a horizontal tube; 11. a filter screen; 2. a vertical tube; 3. a noise absorbing assembly; 31. a sound-deadening ring; 311. a support ring; 312. a reflective ring; 313. a blocking ring; 314. a handle; 315. a reflective trough; 32. silencing cotton.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses amortization combustion engine air intake system.

Referring to fig. 1 and 2, an intake system of a noise-muffling combustion engine includes a horizontal pipe 1, a vertical pipe 2, and a noise-absorbing assembly 3. Horizontal pipe 1 and vertical pipe 2 are the pipe, and the axis of horizontal pipe 1 is perpendicular with the axis of vertical pipe 2, and horizontal pipe 1 runs through vertical pipe 2 to with the inside intercommunication of vertical pipe 2, the air inlet end fixedly connected with filter screen 11 in horizontal pipe 1 both ends, the diameter of vertical pipe 2 is greater than the diameter of horizontal pipe 1. The noise absorption assembly 3 is fixed on the inner side wall of the vertical pipe 2 and is used for absorbing noise.

Referring to fig. 1 and 2, when the gas turbine absorbs gas through the horizontal pipe 1 and the vertical pipe 2, the absorbed gas firstly filters impurities through the filter screen 11, and when the gas generates noise in the flowing process, the sound wave of the noise is absorbed through the noise absorption assembly 3, and then the noise at the gas inlet end of the gas turbine is reduced on the premise of ensuring the gas inlet speed of the gas turbine.

Referring to fig. 1 and 2, the side walls of the horizontal pipe 1 and the vertical pipe 2 are coated with noise reduction paint. The noise absorption assembly 3 comprises a plurality of noise elimination rings 31 and noise elimination cotton 32, the noise elimination rings 31 are arranged at intervals along the inner side wall of the vertical pipe 2, and the noise elimination cotton 32 is arranged inside the noise elimination rings 31.

Referring to fig. 1, 2 and 3, each sound-deadening ring 31 includes a support ring 311, a reflection ring 312 and a blocking ring 313. The supporting ring 311 is fixed on the inner side wall of the vertical pipe 2, the reflecting ring 312 is arranged on the top of the supporting ring 311, the blocking ring 313 is arranged on the bottom of the supporting ring 311, and the reflecting ring 312 and the blocking ring 313 are both connected with the supporting ring 311 through bolts.

Referring to fig. 1, 2 and 3, the reflection ring 312 is provided with a plurality of reflection grooves 315 uniformly upward, the reflection grooves 315 are all through grooves, and the length direction of the reflection grooves 315 intersects with the axis of the vertical pipe 2. The reflection ring 312 is inclined toward the air inlet end of the vertical pipe 2, and the outer ring of the reflection ring 312 is detachably connected to the inner side wall of the vertical pipe 2.

Referring to fig. 1, 2 and 3, the bottom of the blocking ring 313 is horizontally arranged, the outer ring of the blocking ring 313 is detachably connected with the inner side wall of the vertical pipe 2, and a handle 314 is fixedly connected to one side of the blocking ring 313 away from the supporting ring 311.

Referring to fig. 2 and 3, the support ring 311, the reflection ring 312, and the blocking ring 313 form a placement area with the inner side wall of the vertical pipe 2, and the noise damping cotton 32 is placed inside the placement area.

The implementation principle of the intake system of the silencing combustion engine in the embodiment of the application is as follows: when the gas turbine inhales through horizontal pipe 1 and vertical pipe 2, outside air gets into inside vertical pipe 2 through horizontal pipe 1 both ends, when the air changes over into vertical pipe 2 inside, because the cross-sectional area of vertical pipe 2 is greater than the cross-sectional area of horizontal pipe 1, and vertical pipe 2 length direction interval is provided with noise elimination ring 31, makes expansion and the shrink that the propagation passageway of sound wave does not stop, arouses characteristic impedance to change, makes a considerable part sound wave reflect until disappearing. Meanwhile, the sound waves are absorbed by the noise reduction coating and the silencing cotton 32, and further, the air inlet noise of the gas turbine is reduced on the premise of ensuring the air inlet speed of the gas turbine.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An air intake system of a silencing combustion engine, characterized in that: including horizontal pipe (1) and vertical pipe (2), horizontal pipe (1) is worn to establish vertical pipe (2) lateral wall, and with the inside intercommunication of vertical pipe (2), being less than of the diameter of horizontal pipe (1) the diameter of vertical pipe (2), vertical pipe (2) inside is provided with inhales subassembly (3) of making an uproar, it includes a plurality of edges to inhale subassembly (3) of making an uproar the noise elimination ring (31) that vertical pipe (2) length direction interval set up.

2. The intake system of a muffling combustion engine according to claim 1, wherein: and noise reduction coating is arranged on the inner side wall of the vertical pipe (2).

3. The intake system of a muffling combustion engine according to claim 1, wherein: and silencing cotton (32) is arranged in the silencing ring (31).

4. The intake system of a muffling combustion engine according to claim 3, wherein: the silencing ring (31) comprises a supporting ring (311) arranged on the inner side wall of the vertical pipe (2), a reflecting ring (312) arranged at the top of the supporting ring (311) and a blocking ring (313) arranged at the bottom of the supporting ring (311), wherein the inner rings of the reflecting ring (312) and the blocking ring (313) are detachably connected with the supporting ring (311), the outer rings of the reflecting ring (312) and the blocking ring (313) are detachably connected with the inner side wall of the vertical pipe (2), a placing area is formed among the supporting ring (311), the reflecting ring (312) and the blocking ring (313) and the inner side wall of the vertical pipe (2), and silencing cotton (32) is arranged at the placing area.

5. The intake system of a muffling combustion engine according to claim 4, wherein: the reflecting ring (312) inclines towards the direction of the air inlet end of the vertical pipe (2).

6. The intake system of a muffling combustion engine according to claim 4, wherein: the reflecting ring (312) is provided with a plurality of reflecting grooves (315), the reflecting grooves (315) are all through grooves, and the axial lines of the reflecting grooves (315) in the length direction are intersected with the axial line of the reflecting ring (312).

7. The intake system of a muffling combustion engine according to claim 4, wherein: a handle (314) is arranged on one side, away from the supporting ring (311), of the blocking ring (313).

8. The intake system of a muffling combustion engine according to claim 1, wherein: a filter screen (11) is arranged at the air inlet end of the horizontal pipe (1).