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Air silencer

A muffler and air technology, applied in the direction of sounding equipment, instruments, etc., can solve the problems of poor noise reduction and noise reduction, achieve good noise reduction and noise reduction, and increase the effect of residence time.

Inactive Publication Date: 2015-04-29
ZHEJIANG TIANCHEN PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is to solve the problem that the muffler in the prior art has poor sound attenuation and noise reduction effect when it can be used in the environment of high pressure difference and high flow rate. Environmental, air muffler with good noise reduction and noise reduction effect

Method used

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Embodiment 1

[0034] This embodiment provides an air muffler, such as Figure 1-4 As shown, it includes: an outer cylinder 1, the inside of the outer cylinder 1 is separated by a partition plate 4 to form a first chamber 11 and a second chamber 12, both ends of the outer cylinder 1 are respectively provided with The air inlet pipe 2 communicating with the first chamber 11 and the outlet pipe 12 communicating with the second chamber 12 are provided with a plurality of air pipes 41 communicating with the first chamber 11 and the second chamber 12 on the partition plate 4 , The distance L1 from the first end surface 21 of the air pipe 2 located in the first chamber 11 to the partition plate 4 is smaller than the distance L1 from the second end surface 42 of the air pipe 2 located in the first chamber 11 to the partition plate 4 L2, a sound absorbing structure for sound absorption is formed in the second cavity 12.

[0035] In this embodiment, the first chamber 11 is a resistive muffler used to e...

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Abstract

The invention relates to an air silencer which comprises an outer barrel body, an air inlet pipe and an air outlet pipe, wherein the inner part of the outer barrel body is partitioned into a first cavity and a second cavity by a partition plate; a plurality of air pipes communicated with the first cavity and the second cavity are arranged on the partition plate; a distance between the first end face, positioned in the first cavity, of the air inlet pipe and the partition plate is smaller than a distance between the second end face, positioned in the first cavity, of each air pipe; a sound absorption structure for sound absorption is formed in the second cavity; a resisting silencer is arranged in the first cavity, and a resistive silencer is arranged in the second cavity, so that low, medium and high-frequency noise in high-speed air flow can be eliminated; after entering the first cavity, external high-speed air flow flows towards the partition plate and then returns so as to enter the second cavity from the air pipes; therefore, all the air flows go through such a 'backflow' process in the first cavity, and the air silencer disclosed by the invention is extremely good in silencing and noise reduction effects under an environment with high pressure difference and high flowing speed.

Description

Technical field [0001] The invention relates to an air muffler, which belongs to the field of noise reduction equipment. Background technique [0002] The muffler is manufactured according to the principles of sound absorption, reflection and interference to reduce the noise radiated by the sound source. In the chemical industry, the chemical reaction in the reaction vessel needs to be carried out in a high pressure or vacuum environment. No matter it is high pressure or vacuum, there is a huge pressure difference between the inside of the reaction vessel and the outside air. Therefore, when the high pressure or vacuum needs to be broken after the chemical reaction is completed, it will inevitably be accompanied by high-speed gas discharge or absorption, and great noise will be generated during the discharge or absorption or process, resulting in noise pollution. And as the discharge or absorption process continues, the pressure difference between the inside of the reaction vess...

Claims

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Application Information

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IPC IPC(8): G10K11/16
Inventor 吉耀军张宏伟张乐荣翁书豪
Owner ZHEJIANG TIANCHEN PLASTIC IND
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