CN211852167U

CN211852167U - Noise reduction structure for screw compressor

Info

Publication number: CN211852167U
Application number: CN202020099750.XU
Authority: CN
Inventors: 刘庆卫; 周艳辉; 叶耀全
Original assignee: Guangdong Baldor Tech Co ltd
Current assignee: Guangdong Baldor Tech Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-11-03
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a noise reduction structure for a screw compressor, which comprises a square case, wherein an air inlet is arranged on the case; the air inlet is positioned at a position, close to an angle position, of the case, a sound absorption plate is arranged at a position, close to the angle position, of the inner side of the case, and sound absorption cotton is arranged on the sound absorption plate; the sound absorption plate comprises a forward baffle and a lateral baffle, the forward baffle and the lateral baffle form an L-shaped structure, the forward baffle faces to the air inlet, and the angular position of the sound absorption plate faces to the angular position of the case; through the acoustical panel design of L word form, avoid the noise directly to pass through the outside transmission of air intake, form a circuitous sound channel of inhaling of air simultaneously, reduce sound well and leak, play noise reduction effect.

Description

Noise reduction structure for screw compressor

Technical Field

The utility model relates to a compressor technical field, especially a structure of making an uproar falls for screw compressor.

Background

Screw compressor rotating part can produce great noise at the operation in-process, because screw compressor has all designed the dustcoat usually (commonly known as sound proof cover), and paste on the dustcoat and inhale the sound cotton, the in-process that the operation noise can outwards propagate through the air, the less part noise is when transmitting the dustcoat, it falls to be pasted the cotton absorption of inhaling the sound on the dustcoat, the design has the air intake simultaneously on the dustcoat, consequently most is not inhaled the cotton absorptive noise of inhaling the sound and is passed through the direct outwards transmission of air intake, thereby produce great noise interference to the external world.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a structure of making an uproar falls for screw compressor.

The utility model provides a technical scheme that its technical problem adopted is:

a noise reduction structure for a screw compressor comprises a square case, wherein an air inlet is formed in the case; the air inlet is positioned at a position, close to an angle position, of the case, a sound absorption plate is arranged at a position, close to the angle position, of the inner side of the case, and sound absorption cotton is arranged on the sound absorption plate; the sound absorption plate comprises a forward baffle and a lateral baffle, wherein the forward baffle and the lateral baffle form an L-shaped structure, the forward baffle faces an air inlet, and the angular position of the sound absorption plate faces the angular position of the case.

As some embodiments of the present invention, the upper and lower ends of the sound-absorbing plate and the shock absorber are disposed between the inner walls of the case.

As some embodiments of the utility model, the machine incasement wall is provided with the stiffening beam, the bumper shock absorber is including L font connecting piece and elastic component, wherein L font connecting piece with the stiffening beam is connected, the elastic component with the abatvoix is connected.

As some embodiments of the present invention, the width ratio of the forward baffle to the lateral baffle is 3-5.

The utility model has the advantages that: through the acoustical panel design of L word form, avoid the noise directly to pass through the outside transmission of air intake, form a circuitous sound channel of inhaling of air simultaneously, reduce sound well and leak, play noise reduction effect.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the operation of the present invention;

fig. 2 is a perspective view of the present invention;

fig. 3 is a schematic view of the installation of the middle shock absorber of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention can be practiced without these specific details, i.e., those skilled in the art can more effectively describe the nature of their work to others skilled in the art using the description and illustrations herein.

Referring to fig. 1 and 2, a noise reduction structure for a screw compressor includes a square casing 100, and an air inlet 110 is disposed on the casing 100.

The air inlet 110 is located at a position close to an angle position of the case 100, the sound absorption plate 200 is arranged at a position close to the angle position on the inner side of the case 100, noise is reduced from escaping, and sound absorption cotton is arranged on the sound absorption plate 200 and plays a role in absorbing sound.

The sound-absorbing board 200 comprises a forward baffle 210 and a lateral baffle 220, the forward baffle 210 and the lateral baffle 220 form an L-shaped structure, wherein the forward baffle 210 faces the air inlet 110, and the angular position of the sound-absorbing board 200 faces the angular position of the chassis 100. The L-shaped sound-absorbing board 200 separates the compressor main unit from the air inlet 110 inside the housing 100, and an air circuitous sound-absorbing channel is formed through the L-shaped sound-absorbing board 200, so that sound leakage is well reduced.

Shock pads are arranged between the upper side and the lower side of the sound-absorbing plate 200 and the case 100, so that the shock absorption effect of the sound-absorbing plate 200 is improved, and the noise reduction effect is further improved. The material and the specific shape of the shock pad can refer to the shock pad of the existing compressor or other equipment.

The width ratio of the forward baffle 210 to the lateral baffle 220 is 3-5, so that the noise reduction is ensured, and the air inlet efficiency of the screw compressor is not influenced.

Referring to fig. 3, a damper 300 is disposed between the upper and lower ends of the sound-absorbing panel 200 and the inner wall of the cabinet 100, so as to reduce vibration when air passes through the sound-absorbing panel 200, and further reduce noise.

The inner wall of the cabinet 100 is provided with a stiffening beam 120, and the damper 300 comprises an L-shaped connector 310 and an elastic member 320, wherein the L-shaped connector 310 is connected with the stiffening beam 120, and the elastic member 320 is connected with the sound-absorbing board 200.

According to the principle, the present invention can also be modified and modified appropriately for the above-described embodiments, for example, the case can be set to have an irregular shape with an angular position, and the like. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention.

Claims

1. A noise reduction structure for a screw compressor comprises a square case (100), wherein an air inlet (110) is formed in the case (100), and the noise reduction structure is characterized in that:

the air inlet (110) is positioned at a position, close to an angular position, of the case (100), a sound absorption plate (200) is arranged at a position, close to the angular position, of the inner side of the case (100), and sound absorption cotton is arranged on the sound absorption plate (200);

the sound-absorbing board (200) comprises a forward baffle (210) and a lateral baffle (220), the forward baffle (210) and the lateral baffle (220) form an L-shaped structure, the forward baffle (210) faces the air inlet (110), and the angular position of the sound-absorbing board (200) faces the angular position of the case (100).

2. A noise reduction structure for a screw compressor according to claim 1, wherein: and shock absorbers (300) are arranged between the upper end and the lower end of the sound-absorbing board (200) and the inner wall of the case (100).

3. A noise reduction structure for a screw compressor according to claim 2, wherein: the inner wall of the case (100) is provided with a reinforcing beam (120), the shock absorber (300) comprises an L-shaped connecting piece (310) and an elastic piece (320), the L-shaped connecting piece (310) is connected with the reinforcing beam (120), and the elastic piece (320) is connected with the sound absorption board (200).

4. A noise reduction structure for a screw compressor according to claim 1, wherein: the width ratio of the forward baffle (210) to the lateral baffle (220) is