CN2475837Y - Sound-lowing cover for compressor - Google Patents

Abstract

The utility model discloses a muffler device which is specially used in the compressor, comprising a coat which can close the compressor in the muffler device and an ordered stenopeic plate which is fixedly provided in the coat, sound absorption material is fixedly provided between the plate and the coat, and an intake silencer and an exhaust muffler where are provided in the air inlet and exhaust port. A plurality of rows sound absorption tablets are both provided in the above two mufflers, utilizing the helmholtz resonator principle can decrease acoustic energy, thus to decrease the noise pollution of the compressor, environmental protection department detecting noise is 68 db where is in the distancing the compressor 1.5 meters, the noise is decreased to 55 db in the distancing the compressor 10 meters wherein, both reaching national related standare, therefore decreasing noise effect is very obvious.

Description

The compressor sound reduction cover

The utility model relates to a kind of silencer of compressor.

Common compressor can be because of the operation of its compression cylinder and ram when its work, and huge noise is sent in the air inlet and the exhaust of suction port, relief opening, detect through environmental administration, noise apart from 1.5 meters of compressor is 92 decibels, noise apart from its 10 meters is 79 decibels, formed bigger noise pollution, the harm of solution compressor voice becomes people and thirsts for solving but unsolved all the time technical barrier always.

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art and denoising device that a kind of compressor is provided, and it can reduce the noise pollution of compressor effectively, and structure is very simple.

The purpose of this utility model is achieved in that

A kind of compressor sound reduction cover, comprise that one can be with compressor sealing shell wherein, and air inlet on the shell and relief opening, wherein the shell internal fixation at compressor has the steel plate that has orderly aperture, between steel plate and shell, be fixed with sound-absorbing material, be respectively arranged with intake silencer and exhaust silencer at air inlet and relief opening;

Wherein, be provided with number row sound absorption plate in intake silencer and exhaust silencer, the sidewall of sound absorption plate is the steel plate that is provided with orderly aperture, and sound-absorbing material is housed therein, and the passage between the sound absorption plate is respectively air inlet and exhaust passage;

Wherein, the arrangement of aperture on steel plate can be any one in triangle, rectangle or the square.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a relief opening acoustic wave filter structure schematic representation of the present utility model.

A kind of compressor sound reduction cover, comprise that one can be with compressor sealing shell 8 wherein, and air inlet on the shell 8 and relief opening, wherein shell 8 internal fixation at compressor have the steel plate 5 that has orderly aperture 6, between steel plate 5 and shell 8, be fixed with sound-absorbing material 7, be respectively arranged with intake silencer 3 and exhaust silencer 4 at air inlet and relief opening;

Wherein, be provided with number row sound absorption plate 9 in intake silencer 3 and exhaust silencer 4, the sidewall of sound absorption plate 9 is the steel plates 5 that are provided with orderly aperture 6, and sound-absorbing material 7 is housed therein, and the passage between the sound absorption plate 9 is respectively air inlet and exhaust passage;

Wherein, the arrangement of aperture 6 on steel plate 5 is triangle;

Sound-absorbing material 7 is the rotary glass silk flosses that provided by Chengdu special refractories factory.

The utility model is because be provided with denoising device in the shell of compressor shroud, thus the noise that is sent can reduce the compression cylinder of compressor and ram operation effectively the time; Simultaneously because be provided with the inlet and outlet silencer at suction port and relief opening respectively, utilize conspicuous female Huo Zi resonator principle to reduce acoustic energy, thereby the noise pollution that can reduce air inlet, exhaust greatly and taken place, detect through environmental administration, noise at 1.5 meters of distance compressor is 68 decibels, voice apart from its 10 meters is 55 decibels, and noise reduction is fairly obvious, has reached the regulation that has of national environmental protection department; In addition, obviously its structure is very simple as can be seen.

Claims (3)

1, a kind of compressor sound reduction cover, comprise that one can be with compressor (1) sealing shell (8) wherein, and air inlet and relief opening on the shell (8), it is characterized in that the steel plate (5) that has orderly aperture (6) being arranged at shell (8) internal fixation, between steel plate (5) and shell (8), be fixed with sound-absorbing material (7), be respectively arranged with intake silencer (3) and exhaust silencer (4) at air inlet and relief opening.

2, compressor sound reduction cover according to claim 1, it is characterized in that being provided with in intake silencer (3) and the exhaust silencer (4) number row sound absorption plate (9), the sidewall of sound absorption plate (9) is the steel plate (5) that is provided with orderly aperture (6), sound-absorbing material (7) is housed in it, and the passage between the sound absorption plate (9) is respectively air inlet and exhaust passage.

3, compressor sound reduction cover according to claim 1 is characterized in that the arrangement of aperture (6) on steel plate (5) can be any one in triangle, rectangle and the square.

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