CN202228156U

CN202228156U - Silencer

Info

Publication number: CN202228156U
Application number: CN2011203503856U
Authority: CN
Inventors: 林金松; 桑华东
Original assignee: Zhejiang Jin Fei Vehicle Body Fittings Manufacturing Co Ltd
Current assignee: Zhejiang Jin Fei Vehicle Body Fittings Manufacturing Co Ltd
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2012-05-23
Anticipated expiration: 2021-09-19

Abstract

The utility model discloses a silencer which comprises a silencer shell which is composed of an outer wall and an inner cavity, wherein an air inlet and an exhaust port which are communicated with the inner cavity of the silencer are arranged on the outer wall of the silencer; a sound absorption material layer is arranged inside the outer wall of the silencer shell; a partition plate is arranged inside the inner cavity of the silencer shell to divide the inner cavity of the silencer shell into a first expansion chamber and a second expansion chamber, the first expansion chamber is communicated with the exhaust port of the silencer shell, and the second expansion chamber is communicated with the air inlet of the silencer shell; and a third expansion chamber is arranged between the first expansion chamber and the second expansion chamber, and the first expansion chamber, the second expansion chamber and the third expansion chamber are communicated with one another. With the adoption of the structure, the silencer is connected with a diesel engine, when the diesel engine works, the generated noise enter the air inlet and is reduced by a plurality of expansion chambers, the decibel of the sound finally exhausted from the exhaust port is greatly reduced, and the impact of the noise generated during the work of the diesel engine on the environment around and working personnel is effectively reduced.

Description

A kind of silencing apparatus

Technical field

The utility model relates to a kind of silencing apparatus, is specifically related to a kind of used for diesel engine silencing apparatus.

Background technique

At present; No matter the high-power diesel engine that use in oil field, mine etc., work-yard are in the city or in the open air, during the DENG running; The noise that produces is up to more than 110 decibels; The noise pollution that it causes, worker, the resident around not only making can not get having a rest for a long time, simultaneously also severe impairment staff's physical and mental health.

Summary of the invention

To the deficiency of existing technology, the utility model provides a kind of silencing apparatus that is used on the DENG, no longer produces noise in the time of making DENG work.

For realizing above-mentioned purpose; The utility model provides a kind of silencing apparatus; Comprise suppressor case, described suppressor case is made up of outer wall and inner chamber, and the outer wall of silencing apparatus is provided with suction port and the relief opening that is communicated with the silencing apparatus inner chamber; Be provided with sound-absorbing material layer in the outer wall of said suppressor case; Be provided with dividing plate in the inner chamber of said suppressor case, described dividing plate is divided into first expansion chamber and second expansion chamber with the suppressor case inner chamber, and described first expansion chamber is communicated with the relief opening of suppressor case; Described second expansion chamber is communicated with the suction port of suppressor case, also is provided with the 3rd expansion chamber that is interconnected between first expansion chamber and second expansion chamber.

The beneficial effect of the utility model is: adopt said structure; Above-mentioned silencing apparatus is connected with DENG; The noise that is produced during DENG work gets into from the suction port on the suppressor case, through the second expansion chamber noise reduction, gets into the 3rd expansion chamber noise reduction more earlier; Get into the first expansion chamber noise reduction then; The sound that relief opening is discharged from the suppressor case at last, its decibel value will be reduced greatly, and the noise that has been produced when having reduced DENG work effectively is to surrounding enviroment and staff's influence.

The suction port that the utility model can further be set on the said suppressor case is connected with heat insulating tube, and the end of heat insulating tube is provided with adpting flange.

Adopt said structure, motor adopts heat insulating tube to be connected with connecting tube between the silencing apparatus, and the high temperature and high pressure gas that can avoid motor to discharge directly gets in the suppressor case, and silencing apparatus is caused damage.

Description of drawings

Fig. 1 is the structure sectional view of the utility model;

Fig. 2 is the structural representation of the utility model.

Embodiment

Provided a kind of silencing apparatus like Fig. 1, shown in 2; Comprise suppressor case 1; Described suppressor case 1 is made up of outer wall 11 and inner chamber 12, and the outer wall 11 of silencing apparatus is provided with the suction port 13 and relief opening 14 that is communicated with silencing apparatus inner chamber 12, is provided with sound-absorbing material layer 2 in the outer wall 11 of said suppressor case 1; Described sound-absorbing material layer 2 is chrysotile or glass fibre preferably; Be provided with dividing plate 3 in the inner chamber 12 of said suppressor case 1, described dividing plate 3 is divided into first expansion chamber 121 and second expansion chamber 122 with suppressor case inner chamber 12, and described first expansion chamber 121 is communicated with the relief opening 14 of suppressor case 1; Described second expansion chamber 122 is communicated with the suction port 13 of suppressor case 1, also is provided with the 3rd expansion chamber 123 that is interconnected between first expansion chamber 121 and second expansion chamber 122.Suction port 13 on the said suppressor case 1 is connected with heat insulating tube 4, and the end of heat insulating tube 4 is provided with adpting flange 41.

Adopt said structure; Above-mentioned silencing apparatus is connected with DENG; The noise that is produced during DENG work gets into from the suction port 13 on the suppressor case 1, through 122 noise reductions of second expansion chamber, gets into 123 noise reductions of the 3rd expansion chamber more earlier; Get into 121 noise reductions of first expansion chamber then; The sound that relief opening 14 is discharged from the suppressor case 1 at last, its decibel value will be reduced greatly, and the noise that has been produced when having reduced DENG work effectively is to surrounding enviroment and staff's influence.

Claims

1. silencing apparatus; Comprise suppressor case, described suppressor case is made up of outer wall and inner chamber, and the outer wall of silencing apparatus is provided with suction port and the relief opening that is communicated with the silencing apparatus inner chamber; It is characterized in that: be provided with sound-absorbing material layer in the outer wall of said suppressor case; Be provided with dividing plate in the inner chamber of said suppressor case, described dividing plate is divided into first expansion chamber and second expansion chamber with the suppressor case inner chamber, and described first expansion chamber is communicated with the relief opening of suppressor case; Described second expansion chamber is communicated with the suction port of suppressor case, also is provided with the 3rd expansion chamber that is interconnected between first expansion chamber and second expansion chamber.

2. a kind of silencing apparatus according to claim 1 is characterized in that: the suction port on the said suppressor case is connected with heat insulating tube, and the end of heat insulating tube is provided with adpting flange.