CN218030780U

CN218030780U - Compressor amortization spiral case

Info

Publication number: CN218030780U
Application number: CN202221464901.2U
Authority: CN
Inventors: 惠建忠
Original assignee: Wuxi Pujin Precision Machinery Manufacturing Co ltd
Current assignee: Wuxi Pujin Precision Machinery Manufacturing Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-12-13
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses a compressor amortization spiral case, including the inner shell, one side inner wall isopycnic of inner shell is provided with a plurality of baffles, and one side outer wall fixedly connected with inner panel of inner shell, one side inner wall fixedly connected with second inner shell of inner panel, and the second inner shell is located the centre of inner shell, one side inner wall of second inner shell is provided with the second gas outlet, and the opposite side inner wall of second inner shell is provided with the third gas outlet, second gas outlet and third gas outlet are the subtend setting, and one side inner wall of second inner shell is provided with the guide board, the outer wall swing joint of inner shell has the sound of inhaling cotton, and one side inner wall fixedly connected with counter roll of inner panel, the counter roll is located inside the second inner shell, and one side inner wall of inner shell is provided with the gas outlet, one side inner wall fixedly connected with shell of inner panel, and one side outer wall fixedly connected with side cap of shell, the utility model discloses a compressor amortization spiral case has the effect of reinforcing amortization effect.

Description

Compressor amortization spiral case

Technical Field

The utility model relates to a compressor amortization spiral case technical field especially relates to a compressor amortization spiral case.

Background

A compressor: gas turbine engines utilize blades that rotate at high speeds to do work on the air to increase the air pressure. The front end part of the blade of the compressor impeller is bent and called as a guide wheel, and the guide wheel plays a role of guiding gas into the working impeller without impact so as to reduce the impact loss of gas flow. The compressor is driven by a turbine, and the main performance parameters of the compressor are as follows: rotational speed, flow, air flow, pressure ratio, efficiency, etc.

It is known in the mechanical industry that the turbine speed of a supercharger is as high as several hundred thousand revolutions, resulting in a high air flow velocity at the compressor outlet of the supercharger. At present, air outlet pipes of a compressor are simple straight pipes, when high-speed airflow passes through the straight pipes at an air outlet of the compressor, noise of more than 100 decibels can be generated after the high-speed airflow collides with the pipe walls of the straight pipes, noise pollution is large, and in order to reduce the noise pollution of the compressor, a volute with a good noise reduction effect is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a compressor amortization spiral case aims at solving the big technical problem of compressor noise pollution.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a compressor amortization spiral case, includes the inner shell, one side inner wall isopycnic of inner shell is provided with a plurality of baffles, and one side outer wall fixedly connected with inner panel of inner shell, one side inner wall fixedly connected with second inner shell of inner panel, and the second inner shell is located the centre of inner shell, one side inner wall of second inner shell is provided with the second gas outlet, and the opposite side inner wall of second inner shell is provided with the third gas outlet, second gas outlet and third gas outlet are the subtend setting, and one side inner wall of second inner shell is provided with the guide board, the outer wall swing joint of inner shell inhales the sound cotton, and one side inner wall fixedly connected with counter roll of inner panel, the counter roll is located inside the second inner shell, and one side inner wall of inner shell is provided with the gas outlet.

Through being provided with the second inner shell, the guide board, the second gas outlet, third gas outlet and baffle, when turbine fan blade used the fulcrum to rotate as the center, the gaseous effect of guide board is down, discharge along second gas outlet and third gas outlet respectively, because the sound wave that the combustion gas produced is with the sound source, when second gas outlet and third gas outlet exhaust sound wave collide at the intermediate position, with the sound wave of sound source offset each other, and then the big degree amortization, when the sound wave propagates at the inner wall of inner shell, part sound wave passes through the cotton absorption of inhaling of inner shell outer wall, another part blocks through the baffle that sets up inside the inner shell, can reduce the volume by the big degree, thereby reinforcing noise cancelling effect.

In a preferred scheme, one side inner wall fixedly connected with shell of inner panel, and one side outer wall fixedly connected with side cap of shell, one side inner wall of side cap is provided with the air inlet, and one side outer wall fixedly connected with intake pipe of side cap, the intake pipe communicates with each other with the air inlet, one side inner wall of shell has the door that opens and shuts through hinge connection, and the opposite side inner wall of shell has the second door that opens and shuts through hinge connection, the opposite side inner wall of shell has the third door that opens and shuts through hinge connection, the door that opens and shuts is located the top of shell, and second door and the third door that opens and shuts lie in the lower extreme that leans on of shell, door, second door, the third door that opens and shuts and shell junction are provided with the sealing member.

Through being provided with the door that opens and shuts, second door and third door that opens and shuts, inhale the sound cotton setting between shell and inner shell, when the maintenance is demolishd to needs, can demolish through opening the door that opens and shuts, when needs are changed, puts into through opening the door that opens and shuts and inhales the sound cotton, and the rethread is opened second door and third door that opens and shuts and is inhaled the adjustment and inhale cotton afterbody position of sound and can accomplish the change, convenient and fast.

In a preferred scheme, a second side cover is fixedly connected to the outer wall of one side of the inner plate, a water tank is fixedly connected to the inner wall of one side of the second side cover, supporting legs are fixedly connected to the outer walls of one side of the side covers and the outer wall of one side of the second side cover, a hose is arranged on the inner wall of one side of the second side cover, an interface is arranged on the inner wall of one side of the second side cover, and the hose penetrates through the interface.

By providing a hose and a water tank. Reduce the inside operating temperature of inner panel through water-cooled mode, when the environment is overheated, also avoided heated air circulation to the damage that the accessory brought when not influencing sealing performance, the life of guarantee device.

By last knowing, a compressor amortization spiral case, including the inner shell, one side inner wall isopycnic of inner shell is provided with a plurality of baffles, and one side outer wall fixedly connected with inner panel of inner shell, one side inner wall fixedly connected with second inner shell of inner panel, and the second inner shell is located the centre of inner shell, one side inner wall of second inner shell is provided with the second gas outlet, and the opposite side inner wall of second inner shell is provided with the third gas outlet, second gas outlet and third gas outlet are the subtend setting, and one side inner wall of second inner shell is provided with the guide board, the outer wall swing joint of inner shell inhales the sound cotton, and one side inner wall fixedly connected with counter roll of inner panel, the counter roll is located inside the second inner shell, and one side inner wall of inner shell is provided with the gas outlet. The utility model provides a compressor amortization spiral case has the technological effect of reinforcing noise cancelling effect.

Drawings

Fig. 1 is the overall appearance structure schematic diagram of the compressor silencing volute provided by the utility model.

Fig. 2 is a schematic view of an internal cross-section structure of a compressor silencing volute provided by the present invention.

Fig. 3 is a schematic view of the second side cover internal structure split of the compressor muffling volute provided by the present invention.

Fig. 4 is a schematic diagram of the internal structure of the side cover of the compressor noise reduction volute provided by the utility model.

In the drawings: 1. a side cover; 2. an air inlet pipe; 3. a support leg; 4. an air outlet; 5. a water tank; 6. A second side cover; 7. a housing; 8. opening and closing the door; 9. a second opening and closing door; 10. sound-absorbing cotton; 11. A third opening and closing door; 12. an inner shell; 13. a baffle plate; 14. a second inner case; 15. a guide plate; 16. A second air outlet; 17. a third air outlet; 18. a fulcrum; 19. a hose; 20. an interface; 21. An inner plate; 22. an air inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The utility model discloses a compressor amortization spiral case mainly is applied to the scene that the compressor used.

Referring to fig. 1 and 2, a compressor silencing volute comprises an inner shell 12, a plurality of baffles 13 are arranged on the inner wall of one side of the inner shell 12 in an equal density manner, an inner plate 21 is fixedly connected to the outer wall of one side of the inner shell 12, a second inner shell 14 is fixedly connected to the inner wall of one side of the inner plate 21, the second inner shell 14 is located in the middle of the inner shell 12, a second air outlet 16 is arranged on the inner wall of one side of the second inner shell 14, a third air outlet 17 is arranged on the inner wall of the other side of the second inner shell 14, the second air outlet 16 and the third air outlet 17 are arranged in opposite directions, a guide plate 15 is arranged on the inner wall of one side of the second inner shell 14, sound-absorbing cotton 10 is movably connected to the outer wall of the inner shell 12, a fulcrum 18 is fixedly connected to the inner wall of one side of the inner plate 21, the fulcrum 18 is located inside the second inner shell 14, and an air outlet 4 is arranged on the inner wall of one side of the inner shell 12.

Referring to fig. 1 and 4, in a preferred embodiment, an outer case 7 is fixedly coupled to one side inner wall of an inner plate 21, and a side cover 1 is fixedly coupled to one side outer wall of the outer case 7.

Referring to fig. 4, in a preferred embodiment, an air inlet 22 is formed on one side inner wall of the side cover 1, and an air inlet pipe 2 is fixedly connected to one side outer wall of the side cover 1, and the air inlet pipe 2 is communicated with the air inlet 22.

Referring to fig. 1 and 2, in a preferred embodiment, an opening and closing door 8 is hinged to one inner wall of a housing 7, a second opening and closing door 9 is hinged to the other inner wall of the housing 7, and a third opening and closing door 11 is hinged to the other inner wall of the housing 7.

Referring to fig. 1 and 2, in a preferred embodiment, the opening and closing door 8 is located at the top end of the housing 7, the second opening and closing door 9 and the third opening and closing door 11 are located near the lower end of the housing 7, and sealing members are arranged at the connection positions of the opening and closing door 8, the second opening and closing door 9 and the third opening and closing door 11 and the housing 7.

Referring to fig. 1 and 3, in a preferred embodiment, a second side cover 6 is fixedly connected to an outer wall of one side of the inner plate 21, a water tank 5 is fixedly connected to an inner wall of one side of the second side cover 6, and legs 3 are fixedly connected to the side covers 1 and the outer wall of one side of the second side cover 6.

Referring to fig. 1 and 3, in a preferred embodiment, a hose 19 is provided on one side inner wall of the second side cover 6, and a nipple 20 is provided on one side inner wall of the second side cover 6, and the hose 19 passes through the nipple 20. By providing a hose and a water tank. Reduce the inside operating temperature of inner panel through water-cooled mode, when the environment is overheated, also avoided heated air circulation to the damage that the accessory brought when not influencing sealing performance, the life of guarantee device.

The working principle is as follows: when the turbine fan blade rotates by taking the fulcrum shaft 18 as a center, compressed gas is discharged along the second air outlet 16 and the third air outlet 17 respectively under the action of the guide plate 15, sound waves generated by discharged gas are a homophonic source, when the sound waves discharged from the second air outlet 16 and the third air outlet 17 collide at the middle position, the sound waves with the phononic source are mutually offset, and then the sound is greatly silenced, when the sound waves are transmitted on the inner wall of the inner shell 12, part of the sound waves are absorbed by the sound absorption cotton 10 on the outer wall of the inner shell 12, the other part of the sound waves are blocked by the baffle 13 arranged inside the inner shell 12, the sound volume can be greatly reduced, and the silencing effect is enhanced.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. The substitution may be of partial structures, devices, method steps, or may be a complete solution. According to the utility model discloses a technical scheme and utility model design and equal replacement or change all should be covered within the scope of protection of the utility model.

Claims

1. The utility model provides a compressor amortization spiral case, includes inner shell (12), its characterized in that, one side inner wall isopycnic of inner shell (12) is provided with a plurality of baffles (13), and one side outer wall fixedly connected with inner panel (21) of inner shell (12), one side inner wall fixedly connected with second inner shell (14) of inner panel (21), and second inner shell (14) are located the centre of inner shell (12), one side inner wall of second inner shell (14) is provided with second gas outlet (16), and the opposite side inner wall of second inner shell (14) is provided with third gas outlet (17), second gas outlet (16) and third gas outlet (17) are subtend setting, and one side inner wall of second inner shell (14) is provided with guide board (15), the outer wall swing joint of inner shell (12) has inhales sound (10), and one side inner wall fixedly connected with (18) of inner panel (21), fulcrum (18) are located inside second inner shell (14), and one side inner wall of inner shell (12) is provided with gas outlet (4).

2. The compressor sound attenuation volute of claim 1, wherein the inner plate (21) is fixedly connected with the outer casing (7) at one side of the inner wall, and the outer casing (7) is fixedly connected with the side cover (1) at one side of the outer wall.

3. The compressor sound attenuation volute according to claim 2, wherein an air inlet (22) is formed in one side inner wall of the side cover (1), an air inlet pipe (2) is fixedly connected to one side outer wall of the side cover (1), and the air inlet pipe (2) is communicated with the air inlet (22).

4. The compressor sound attenuation volute according to claim 2, wherein the inner wall of one side of the housing (7) is connected with an opening and closing door (8) through a hinge, the inner wall of the other side of the housing (7) is connected with a second opening and closing door (9) through a hinge, and the inner wall of the other side of the housing (7) is connected with a third opening and closing door (11) through a hinge.

5. The compressor sound attenuation volute casing according to claim 4, wherein the opening and closing door (8) is located at the top end of the casing (7), the second opening and closing door (9) and the third opening and closing door (11) are located at the lower end of the casing (7), and sealing members are arranged at the connection positions of the opening and closing door (8), the second opening and closing door (9) and the third opening and closing door (11) and the casing (7).

6. The compressor sound attenuation volute according to claim 1, wherein a second side cover (6) is fixedly connected to an outer wall of one side of the inner plate (21), a water tank (5) is fixedly connected to an inner wall of one side of the second side cover (6), and the side covers (1) and the outer wall of one side of the second side cover (6) are fixedly connected with the support legs (3).

7. The compressor sound attenuation volute according to claim 6, wherein the second side cover (6) is provided with a hose (19) on one side, and the second side cover (6) is provided with a port (20) on one side, and the hose (19) passes through the port (20).