CN116677587A

CN116677587A - Noise reduction device of compressor and installation cabin

Info

Publication number: CN116677587A
Application number: CN202310930204.4A
Authority: CN
Inventors: 李志朋; 羊山百; 谢奎; 代富阳; 周德胜; 曾燕; 余应洪
Original assignee: Chengdu Xinsanye Technology Co ltd
Current assignee: Chengdu Xinsanye Technology Co ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2023-09-01
Anticipated expiration: 2043-07-27
Also published as: CN116677587B

Abstract

The utility model relates to the technical field of installation and noise reduction of compressors. Specifically, the utility model discloses a noise reduction device of a compressor and an installation cabin body, wherein a first platform and a second platform are connected through a universal ball head connecting assembly and a first damping shock absorber, and the first damping shock absorber can incline according to the actual vibration angle of the compressor; the second damping shock absorber is arranged on one side, far away from the rigid block, of the buffer block, zhou Xiangzhen of the compressor can drive the rigid block to incline by a corresponding angle along with the first damping shock absorber, the buffer block is pushed to squeeze the second damping shock absorber, circumferential vibration of the compressor is buffered through the second damping shock absorber, rigid collision caused by the circumferential vibration of the compressor is effectively reduced, and noise caused by the circumferential vibration of the compressor is reduced.

Description

Noise reduction device of compressor and installation cabin

Technical Field

The utility model relates to the technical field of installation and noise reduction of compressors. In particular to a noise reduction device of a compressor and an installation cabin.

Background

A reciprocating piston machine is a machine that utilizes the reciprocating motion of a piston within a cylinder to vary the chamber volume, drawing in and pushing out air. When the compressor works, the compressor works to generate obvious vibration, and a large amount of noise is generated during vibration.

The utility model discloses a noise reduction device suitable for an air compressor, which is characterized in that two sides of the bottom of a pair of support plates are damped through a damping damper, when the air compressor vibrates, a first movable rod and a second movable rod respectively drive a first sliding plate and a second sliding plate to slide on a sliding rod, the second damping damper and a third damping damper are used for buffering and damping, the bottom of the support plates are damped, the air compressor is noise reduced, a handle is rotated to drive a bidirectional screw rod to rotate, the first sliding block is driven to move, the third movable rod is driven to move, a lifting plate and an arc-shaped pressing plate are driven to move, the arc-shaped pressing plate props against the air compressor, and the top of the air compressor is damped and noise reduced through a fourth damping damper.

However, vibration of the compressor is irregularly performed during operation, the compressor can vibrate at various angles in the circumferential direction, and the utility model only performs targeted vibration reduction work on the up-down direction, the left-right direction and the front-back direction of the compressor so as to achieve the purpose of noise reduction, and the vibration reduction and noise reduction effects in the circumferential direction of the compressor are not ideal.

Disclosure of Invention

The utility model provides a noise reduction device and an installation cabin of a compressor, aiming at solving the problems in the prior art, and the noise reduction device and the installation cabin aim at reducing the vibration of the compressor in the circumferential direction and achieving the purpose of noise reduction.

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

provided is a noise reduction device of a compressor, including: a first platform for fixedly mounting a compressor and a second platform for fixedly mounting with a ground surface, the apparatus further comprising: the two ends of the first damping shock absorbers are respectively connected with the first platform and the second platform through the universal ball head connecting components; still be provided with the buffering between first platform and second platform and right the subassembly, the buffering is right the subassembly and is included: the damping device comprises a rigid block fixedly arranged on a first damping shock absorber and a plurality of buffer blocks movably arranged around the rigid block; the side, far away from the rigid block, of the buffer block is provided with a second damping shock absorber, and Zhou Xiangzhen of the compressor can drive the rigid block to push the buffer block to squeeze the second damping shock absorber so as to buffer circumferential vibration of the compressor; the second damping shock absorber can push the buffer block to clamp and centralize the rigid block through resetting action.

Further, a third platform is arranged between the first platform and the second platform, and a first counter bore for installing the buffer block and the second damping shock absorber and a first through hole for the first damping shock absorber to pass through are formed in the third platform.

Further, the rigid block is a conical block which is inverted, the buffer block is hinged on the third platform, a first contact surface for sliding of the rigid block and a second contact surface for sliding of the second damping shock absorber are arranged on the buffer block, one end of the second damping shock absorber is fixedly arranged on the third platform, and the other end of the second damping shock absorber is in contact with the second contact surface; the first contact surface and the second contact surface are arc surfaces, and a sliding ball head capable of being embedded into the second contact surface is arranged on the second damping shock absorber.

Furthermore, the buffer block is of a hollow structure, a plurality of conical through holes communicated with the internal cavity are formed in the first contact surface and the second contact surface, and first silencing stop blocks are arranged on two sides of any conical through hole in the internal cavity along the opening direction of the conical through hole so as to form silencing channels for absorbing noise transmitted from the conical through holes; the second silencing stop block is also arranged on the silencing channel so as to form a turned-back silencing channel.

Further, the first silencing stop block and the second silencing stop block are triangular prisms.

Further, the rigid block is a ball block, the buffer block is slidably mounted in a sliding groove on the third platform, a first contact surface for sliding of the rigid block is arranged on the buffer block, one end of the second damping shock absorber is fixedly mounted on the third platform, and the other end of the second damping shock absorber is fixedly connected with the buffer block.

Further, the rigid block is of a hollow structure, a plurality of conical through holes communicated with the inner cavity are formed in the rigid block, first silencing stop blocks are arranged on two sides of any one conical through hole in the inner cavity along the opening direction of the conical through holes, and the first silencing stop blocks are wavy, so that a returned silencing channel for absorbing noise transmitted from the conical through holes is formed.

A mounting enclosure, comprising: the device comprises a first cabin, a second cabin arranged in the first cabin, a noise-reducing and ventilation assembly arranged on the side wall of the second cabin and a noise-reducing device of a compressor arranged in the second cabin; a plurality of ventilation ports have all been seted up at the lateral wall of the second cabin body, and the subassembly of taking a breath of making an uproar falls includes: the air blowing barrel is arranged in the ventilation opening, and a first air opening and a second air opening are formed in the air blowing barrel; the air-blasting rotating plates are fixedly arranged on the rotating shafts along the circumferential array, the rotating shafts are rotatably and concentrically arranged in the air-blasting cylinders, and the end parts of the air-blasting rotating plates are arc surfaces and tangent to the inner wall surfaces of the air-blasting cylinders; the axial flow fan is arranged at one side of the first air opening and can blow the blowing rotating plate to rotate so as to blow air into/out of the second cabin body.

Further, at least four blast rotating plates are arranged on a rotating shaft in a circumferential array; the first circumferential angle alpha of the first tuyere is 30 deg. -45 deg., and the second circumferential angle beta of the second tuyere is 45 deg. -90 deg..

Furthermore, the shells of the first cabin body and the second cabin body are filled with sound absorption materials, and the air inlet and the air outlet of the first cabin body are respectively provided with an air inlet silencer and an air outlet silencer.

The beneficial effects of the utility model are as follows: the first platform and the second platform are connected through the universal ball head connecting assembly and the first damping shock absorber, and the first damping shock absorber can incline according to the actual vibration angle of the compressor; the second damping shock absorber is arranged on one side, far away from the rigid block, of the buffer block, zhou Xiangzhen of the compressor can drive the rigid block to incline by a corresponding angle along with the first damping shock absorber, the buffer block is pushed to squeeze the second damping shock absorber, circumferential vibration of the compressor is buffered through the second damping shock absorber, rigid collision caused by the circumferential vibration of the compressor is effectively reduced, and noise caused by the circumferential vibration of the compressor is reduced.

Drawings

FIG. 1 is a schematic view of the overall installation of a first pod and a second pod provided by the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1 at C;

FIG. 3 is a schematic diagram illustrating an internal structure of a buffer block according to embodiment 1 of the present utility model;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a top view of a third platform provided by the present utility model;

FIG. 6 is a schematic diagram illustrating assembly of the clamping blocks according to the present utility model;

FIG. 7 is a top view of a clamp block provided by the present utility model;

FIG. 8 is a cross-sectional view B-B of FIG. 7;

FIG. 9 is a schematic view showing the installation of a rigid block according to embodiment 2 of the present utility model;

FIG. 10 is a schematic view showing the internal structure of a rigid block according to embodiment 2 of the present utility model;

FIG. 11 is a top view of a noise reduction ventilation assembly according to embodiment 3 of the present utility model;

11, a first platform; 111. a compressor; 12. a second platform; 13. a third platform; 131. a first counterbore; 132. a first through hole; 133. a first threaded hole; 134. a second threaded hole; 135. t-shaped sliding grooves; 2. a first damping shock absorber; 3. a universal ball joint connection assembly; 31. universal ball head; 32. a ball head base; 41. a rigid block; 42. a buffer block; 421. a first contact surface; 422. a second contact surface; 423. conical through holes; 424. a first muffler stop; 425. a second muffler stop; 426. a sound damping channel; 427. a second counterbore; 43. a second damping vibration absorber; 431. sliding ball head; 51. a first compartment; 511. an intake silencer; 512. an outlet muffler; 52. a second compartment; 521. a ventilation port; 522. a sound absorbing sponge; 523. a butyl rubber layer; 6. a noise-reducing ventilation assembly; 61. an air blowing tube; 611. a first tuyere; 612. a second tuyere; 62. a blast rotating plate; 621. a rotating shaft; 63. an axial flow fan; 7. clamping blocks; 71. a through groove; 72. a hinge hole; 73. a guide groove; 8. a hinge post; 81 support the springs.

Detailed Description

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a noise reduction device of a compressor, including: a first platform 11 for fixedly mounting the compressor 111 and a second platform 12 fixedly mounted with the ground, and both the first platform 11 and the second platform 12 are horizontally mounted.

The apparatus further comprises: the first damping shock absorbers 2 and the universal ball head connecting assemblies 3 are arranged in a plurality, and two ends of each first damping shock absorber 2 are respectively connected with the first platform 11 and the second platform 12 through the universal ball head connecting assemblies 3.

In the specific installation, the compressor 111 is fixedly installed on the first platform 11 through bolts, the end part of the first damping shock absorber 2 is fixedly connected with the universal ball 31 of the universal ball connecting assembly 3 through a flange plate, and the ball base 32 of the universal ball connecting assembly 3 is fixedly installed on the first platform 11 and the second platform 12.

In the utility model, the first platform 11 and the second platform 12 are connected through the universal ball joint connecting assembly 3 and the first damping shock absorber 2, the linear shock between the first platform 11 and the second platform 12 is reduced through the first damping shock absorber 2, the first damping shock absorber 2 can incline the direction according to the angle of the circumferential shock generated during the operation of the compressor 111, the rigid collision generated by the circumferential shock of the compressor 111 is reduced, and the noise is reduced.

In this embodiment, a buffer centralizing assembly is further provided between the first platform 11 and the second platform 12, the buffer centralizing assembly including: the damping device comprises a rigid block 41 fixedly arranged on the first damping shock absorber 2 and a plurality of buffer blocks 42 movably arranged around the rigid block 41.

It can be understood that the second damping shock absorbers 43 are installed on the side, far away from the rigid block 41, of the buffer block 42, and the circumferential vibration of the compressor 111 can drive the rigid block 41 to incline by a corresponding angle along with the first damping shock absorbers 2, and push the buffer block 42 to squeeze the second damping shock absorbers 43, so that the circumferential vibration of the compressor 111 is buffered by the second damping shock absorbers 43, thereby effectively reducing the rigid collision generated by the circumferential vibration of the compressor 111, and reducing the noise generated by the circumferential vibration of the compressor 111.

When the second damping shock absorber 43 performs a resetting action, the buffer block 42 can be pushed, so that the rigid block 41 is clamped and righted, the first damping shock absorber 2 is ensured to be vertically installed, the first platform 11 is prevented from being in an inclined state after the compressor 111 vibrates, and the first platform 11 is ensured to be horizontally installed.

Specifically, the first damping vibration absorber 2 and the second damping vibration absorber 43 may be spring damping vibration absorbers commonly used in the market.

Referring to fig. 5, in the present embodiment, seven first damping vibration absorbers 2 are installed, one of the first damping vibration absorbers 2 is installed at the geometric center of the first platform 11, and the remaining six first damping vibration absorbers 2 are installed in a circumferential array of the geometric center of the first platform 11.

Referring to fig. 2 and 4, the rigid block 41 is a cone-shaped block with a flip-chip structure, the buffer block 42 is hinged to the third platform 13, a first contact surface 421 for sliding the rigid block 41 and a second contact surface 422 for sliding the second damping shock absorber 43 are provided on the buffer block 42, one end of the second damping shock absorber 43 is fixedly mounted on the third platform 13, and the other end is abutted against the second contact surface 422.

The first contact surface 421 and the second contact surface 422 are both arc surfaces. A sliding ball 431 capable of being fitted into the second contact surface 422 is attached to the second damper 43, and the second damper 43 is in contact with the damper block 42 via the sliding ball 431.

In the present embodiment, the contact between the rigid block 41 and the buffer block 42, and the contact between the buffer block 42 and the second damping shock absorber 43 are converted into line contact, so that the contact area is reduced, the friction generated by the relative sliding of the buffer block 42 and the rigid block 41/the second damping shock absorber 43 is reduced, the risk of being deformed by extrusion is reduced, and the generation of noise is reduced.

Referring to fig. 3, the buffer block 42 has a hollow structure, and a plurality of conical through holes 423 communicating with the internal cavity are formed in both the first contact surface 421 and the second contact surface 422, and frictional noise generated by the relative sliding of the buffer block 42 and the rigid block 41/the second damping vibration absorber 43 is absorbed by the conical through holes 423.

A first noise elimination stopper 424 is provided in the inner cavity along the opening direction of the conical through holes 423 on both sides of any one of the conical through holes 423 to form a noise elimination passage 426 that absorbs noise transmitted from the conical through holes 423; a second muffler stop 425 is also mounted on the muffler channel 426, and both the first muffler stop 424 and the second muffler stop 425 are triangular prisms.

Noise penetrating into the buffer block 42 is limited by providing the first noise elimination block 424 to enter the noise elimination channel 426 in a certain angle range, refract the noise and consume its acoustic energy.

The second silencing stop block 425 is further arranged on the silencing channel 426, a turning-back silencing channel 426 is formed inside the buffer block 42, noise in one silencing channel 426 is split and refracted, the propagation path of the noise in the buffer block 42 is increased, the noise penetrating into two sides of the buffer block 42 can be refracted and convected, the noise with the same sound wave frequency and opposite amplitude is mutually counteracted, and the purposes of silencing and noise reduction are achieved. The noise that is not canceled continues to be refracted and muffled on the muffling channel and the inner face of the cushion block 42.

By arranging the conical through holes 423, noise sound waves with different angles can be absorbed, sound waves with various angles are scattered and refracted, and the silencing purpose is achieved; the probability of noise refraction in the buffer block 42 can be reduced, and noise transmitted to the outside can be reduced.

Referring to fig. 5, a third platform 13 is provided between the first and second platforms 11 and 12, and a first counterbore 131 for mounting the damper block 42 and the second damper 43 and a first through hole 132 for passing the first damper 2 are provided in the third platform 13.

Referring to fig. 6 to 8, it is easy to understand that a plurality of first threaded holes 133 for fixedly mounting the second damping vibration absorber 43 are formed on the bottom surface of the first counterbore 131, a stepped surface is further formed on the first counterbore 131, a plurality of second threaded holes 134 for fixedly mounting the clamping blocks 7 are formed on the stepped surface, and a through groove 71 and a hinge hole 72 for mounting the buffer block 42 are formed on any clamping block 7.

Referring to fig. 4, the buffer block 42 is formed by combining two splicing members, the splicing members are provided with second counter bores 427 for limiting the hinge posts 8, and a supporting spring is further installed between the two hinge posts 8. During specific installation, the clamping blocks 7 are fixedly installed on the third platform 13 through screws, the hinge columns 8 are oppositely extruded to enable parts of the hinge columns 8 to be received in the buffer blocks 42, and then the hinge columns 8 are installed in the through grooves 71 along the guide grooves 73 until the hinge columns 8 are sprung into the hinge holes 72 through the supporting springs, so that the installation is completed.

It can be understood that the through grooves 71, the buffer blocks 42 and the clamping blocks 7 are in a friction state for a long time, are easy to wear, facilitate the later maintenance work of the device by arranging the clamping blocks 7, facilitate the replacement of the clamping blocks 7 and the buffer blocks 42 after long-term use, and each through groove 71 and each buffer block 42 are relatively independent, so that the through grooves can be replaced in a targeted manner after wear occurs, and the maintenance cost is reduced.

Example 2

Referring to fig. 9 and 10, in the present embodiment, the difference from embodiment 1 is that the rigid block 41 is a spherical block, the buffer block 42 is slidably mounted in the T-shaped chute 135 on the third platform 13, the buffer block 42 is provided with a first contact surface 421 for sliding the rigid block 41, and one end of the second damping shock absorber 43 is fixedly mounted on the third platform 13, and the other end is fixedly connected with the buffer block 42.

In this embodiment, the rigid block 41 is a spherical block, and of course, the first contact surface 421 is a partially spherical concave surface, in this embodiment, the first contact surface 421 is in surface-to-surface contact with the rigid block 41, so that the wrapping property is stronger, and the buffering and centering actions are more stable; and the buffer block 42 can be slidably arranged in the T-shaped sliding groove 135 on the third platform 13, so that the structure is simpler and more convenient, and the manufacturing cost is effectively reduced.

Further, the rigid block 41 has a hollow structure, a plurality of conical through holes 423 communicating with the internal cavity are formed in the rigid block 41, and first noise elimination stoppers 424 are provided on both sides of any one of the conical through holes 423 in the opening direction of the conical through holes 423 in the internal cavity, and the first noise elimination stoppers 424 are wavy, so that a return noise elimination passage 426 absorbing noise transmitted from the conical through holes 423 is formed. The noise that penetrates in the buffer block 42 both sides carries out refraction convection current, offsets the noise that the sound wave frequency is the same, the amplitude is opposite each other, reaches amortization noise reduction purpose. The noise which is not counteracted continues to be refracted and silenced on the silencing channel and the inner surface of the buffer block 42, so that the noise generated by friction between the buffer block 42 and the rigid block 41 is effectively reduced.

Of course, balls may be added to the T-shaped chute 135 to reduce noise generated by friction between the buffer block 42 and the third platform 13.

Example 3

Referring to fig. 1 and 11, the present embodiment provides an installation cabin, including: the first cabin 51, the second cabin 52 installed in the first cabin 51, the noise reduction ventilation assembly 6 installed on the side wall of the second cabin 52, and the noise reduction device of the compressor 111 installed in the second cabin 52.

Wherein, the shells of the first cabin 51 and the second cabin 52 are filled with sound absorbing materials, and the sound absorbing materials comprise: a porous sound absorbing material (such as sound absorbing sponge 522) adjacent to the interior space of the cabin and a butyl rubber layer 523 adjacent to the exterior space of the cabin.

An inlet muffler 511 and an outlet muffler 512 are respectively installed at the inlet and outlet of the first chamber 51, and a plurality of ventilation ports 521 are formed at the sidewall of the second chamber 52.

Specifically, the noise reduction ventilation assembly 6 includes: the air blowing tube 61 is provided with a first air port 611 and a second air port 612 on the air blowing tube 61; the air-blasting rotating plates 62, a plurality of air-blasting rotating plates 62 are fixedly arranged on a rotating shaft 621 along a circumferential array, the rotating shaft 621 is rotatably and concentrically arranged in the air-blasting barrel 61, and the end parts of the air-blasting rotating plates 62 are arc surfaces and tangent with the inner wall surface of the air-blasting barrel 61; an axial flow fan 63, the axial flow fan 63 being installed at one side of the first air port 611, the axial flow fan 63 being capable of blowing the blast rotor plate 62 to rotate, thereby blast the inside/outside of the second compartment 52.

In actual operation, a plurality of axial fans 63 are installed on one side of the second cabin 52, and the fan rotating plate 62 is blown by the axial fans 63 on the side to rotate, so that air is blown into the second cabin 52, and air cooling and heat dissipation are performed on the compressor 111; a plurality of axial fans 63 are also installed on the other side of the second cabin 52, and the fan rotating plate 62 is blown by the axial fans 63 on the other side to blow air to the outside of the second cabin 52, so that hot air cooled and radiated by the compressor 111 is delivered out of the second cabin 52.

It will be appreciated that in the conventional installation method, noise generated by vibration of the compressor 111 is required to be ventilated and silenced by the inlet silencer 511 and the outlet silencer 512, and the inlet silencer 511 and the outlet silencer 512 are in communication with the outside of the compressor 111 and the cabin, so that the effect of eliminating part of frequency noise is not reasonable, and in order to increase the noise reduction effect, it is generally required to install a longer inlet silencer and outlet silencer 512.

In this embodiment, a plurality of blower rotating plates 62 are fixedly mounted on a rotating shaft 621 along a circumferential array, the rotating shaft 621 is rotatably and concentrically mounted in the blower cylinder 61, the end of the blower rotating plate 62 is an arc surface and is tangential to the inner wall surface of the blower cylinder 61, and the blower rotating plate 62 always blocks the first air port 611 and the second air port 612 when the axial flow fan 63 blows air into/out of the second compartment 52.

Of course, sound insulation materials (such as butyl rubber) can be filled in the blower cylinder 61 and the blower rotating plate 62 to improve the overall sound insulation and noise reduction capability of the device.

Compared with the traditional installation mode, in the embodiment, under the condition of ensuring sufficient ventilation quantity, the second cabin 52 is subjected to closed ventilation and heat dissipation, the independence of the second cabin 52 is ensured, the noise generated by the compressor 111 is sealed in the second cabin 52, the transmission path of the noise generated by the compressor 111 when in operation to the outside is effectively blocked, the workload of the air inlet silencer 511 and the air outlet silencer 512 is reduced, and the installation length of the air inlet silencer 511 and the air outlet silencer 512 is shortened.

Specifically, at least four blower rotating plates 62 are circumferentially arranged on one rotating shaft 621; the first circumferential angle alpha of the first air opening 611 is 30 degrees to 45 degrees, so that the exposed area between the two air blowing rotating plates 62 at the first air opening 611 is reduced, the axial flow fan 63 can effectively blow the air blowing rotating plates 62 to rotate the rotating shaft 621, and the ventilation work is ensured to be smoothly carried out; the second circumferential angle beta of the second tuyere 612 is 45-90 degrees, so that the exposed area between the two blast rotating plates 62 at the second tuyere 612 is increased, and the ventilation amount is ensured.

It will be apparent to those skilled in the art that while preferred embodiments of the present utility model have been described, additional variations and modifications may be made to these embodiments once the basic inventive concepts are known to those skilled in the art. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A noise reduction device of a compressor, comprising: a first platform (11) for fixedly mounting a compressor (111) and a second platform (12) fixedly mounted with the ground, characterized in that,

further comprises: the device comprises a plurality of first damping shock absorbers (2) and universal ball head connecting assemblies (3), wherein two ends of each first damping shock absorber (2) are respectively connected with a first platform (11) and a second platform (12) through the universal ball head connecting assemblies (3);

a buffer righting assembly is also provided between the first platform (11) and the second platform (12), the buffer righting assembly comprising: a rigid block (41) fixedly arranged on the first damping shock absorber (2) and a plurality of buffer blocks (42) movably arranged around the rigid block (41);

a second damping shock absorber (43) is arranged on one side, far away from the rigid block (41), of the buffer block (42), and Zhou Xiangzhen of the compressor (111) can drive the rigid block (41) to push the buffer block (42) to press the second damping shock absorber (43) so as to buffer circumferential vibration of the compressor (111); the second damping shock absorber (43) can push the buffer block (42) to clamp and centralize the rigid block (41) in a resetting mode.

2. The noise reduction device of a compressor according to claim 1, characterized in that a third platform (13) is arranged between the first platform (11) and the second platform (12), and a first counter bore (131) for installing the buffer block (42) and the second damping shock absorber (43) and a first through hole (132) for passing through the first damping shock absorber (2) are arranged on the third platform (13).

3. The noise reduction device of a compressor according to claim 2, characterized in that, in that the rigid block (41) is a cone-shaped block with flip-chip structure, the buffer block (42) is hinged on the third platform (13), a first contact surface (421) for sliding the rigid block (41) and a second contact surface (422) for sliding the second damping vibration absorber (43) are arranged on the buffer block (42), and one end of the second damping vibration absorber (43) is fixedly installed on the third platform (13) and the other end is in contact with the second contact surface (422); the first contact surface (421) and the second contact surface (422) are both arc surfaces, and a sliding ball head (431) capable of being embedded into the second contact surface (422) is mounted on the second damping shock absorber (43).

4. A noise reduction device of a compressor according to claim 3, wherein the buffer block (42) has a hollow structure, a plurality of conical through holes (423) communicating with an internal cavity are formed in the first contact surface (421) and the second contact surface (422), and first noise elimination stoppers (424) are disposed on both sides of any one conical through hole (423) in the internal cavity along the opening direction of the conical through hole (423), so as to form a noise elimination channel (426) for absorbing noise transmitted from the conical through hole (423); a second silencing stop (425) is also arranged on the silencing channel (426) so as to form a folded silencing channel (426).

5. The noise reducer of a compressor of claim 4, wherein the first and second muffler blocks (424, 425) are triangular prisms.

6. The noise reduction device of the compressor according to claim 2, wherein the rigid block (41) is a spherical block, the buffer block (42) is slidably mounted in a chute on the third platform (13), a first contact surface (421) for sliding the rigid block (41) is provided on the buffer block (42), and one end of the second damping shock absorber (43) is fixedly mounted on the third platform (13) and the other end is fixedly connected with the buffer block (42).

7. The noise reduction device of a compressor according to claim 6, wherein the rigid block (41) has a hollow structure, a plurality of conical through holes (423) communicating with an internal cavity are formed in the rigid block (41), first noise reduction stoppers (424) are provided on both sides of any one of the conical through holes (423) in the opening direction of the conical through holes (423) in the internal cavity, and the first noise reduction stoppers (424) have a wavy shape, so that a folded noise reduction channel (426) absorbing noise transmitted from the conical through holes (423) is formed.

8. A mounting compartment, comprising: a first cabin (51), a second cabin (52) installed in the first cabin (51), a noise-reducing ventilation assembly (6) installed on the side wall of the second cabin (52), and a noise-reducing device of the compressor according to any one of claims 1 to 7 installed in the second cabin (52);

a plurality of ventilation ports (521) are formed in the side wall of the second cabin body (52), and the noise-reducing ventilation assembly (6) comprises:

an air blowing tube (61) which is arranged in the ventilation opening (521), and a first air opening (611) and a second air opening (612) are arranged on the air blowing tube (61);

the air blowing rotating plates (62) are fixedly arranged on rotating shafts (621) along a circumferential array, the rotating shafts (621) are rotatably and concentrically arranged in the air blowing cylinders (61), and the end parts of the air blowing rotating plates (62) are arc surfaces and tangent to the inner wall surfaces of the air blowing cylinders (61);

and an axial flow fan (63), wherein the axial flow fan (63) is installed at one side of the first air port (611), and the axial flow fan (63) can blow the blowing rotating plate (62) to rotate so as to blow air into/out of the second cabin (52).

9. The installation compartment according to claim 8, characterized in that on one of said shafts (621) at least four of said blast rotor plates (62) are mounted in a circumferential array; the first circumferential angle alpha of the first tuyere (611) is 30-45 deg. in size, and the second circumferential angle beta of the second tuyere (612) is 45-90 deg..

10. The installation cabin according to claim 8, wherein the shells of the first cabin (51) and the second cabin (52) are filled with sound absorbing materials, and an air inlet silencer (511) and an air outlet silencer (512) are respectively installed at the air inlet and the air outlet of the first cabin (51).