Resistive and reactive composite silencing tower

A compound, resistant noise reduction technology, applied in the direction of noise reduction devices, engine components, machines/engines, etc., can solve the problems of inflexible noise reduction structure, insufficient noise reduction effect, and inability to increase or decrease, so as to improve the noise reduction function , Improve the absorption and increase the effect of noise reduction

Pending Publication Date: 2021-04-09
无锡世一电力环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the noise reduction effect of the existing anechoic tower is not enough, and the noise reduction structu

Method used

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  • Resistive and reactive composite silencing tower
  • Resistive and reactive composite silencing tower
  • Resistive and reactive composite silencing tower

Examples

Experimental program
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Example Embodiment

[0033]Embodiment:

[0034]The existing noise reduction effect is not enough, the noise reduction structure is not flexible, and cannot be appropriately reduced according to the user's needs. It is an object of the present invention to solve the problems present in the prior art, providing an impedance composite muzzle tower that combines resistive structures and resistive structures to improve sound absorption, improve silencing effects .

[0035]By the followingFigure 1-3An impedance composite muzzle tower proposed in the present invention will be described in detail:

[0036]Seefigure 1 The cross-sectional structure of the disapacteramid tower of the present invention includes a first muffler device and a second muffler device, wherein

[0037]The first muffler device includes a diffusion tube 20 having an inlet 21 and the other end having a head, and a small via hole is provided on the side wall of the diffusion tube 20.

[0038]The second muffler device includes a body housing 10 of a muffle t...

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Abstract

The invention discloses a resistive and reactive composite silencing tower. The resistive and reactive composite silencing tower comprises a first silencing device and a second silencing device. The first silencing device comprises a diffusion pipe, an inlet is formed in one end of the diffusion pipe, an end socket is arranged at the other end of the diffusion pipe, and multiple small through holes are formed in the side wall of the diffusion pipe. The second silencing device comprises a body shell of the silencing tower and one or more sets of silencing structures contained in the body shell, the body shell of the silencing tower is provided with a containing cavity and an opening communicating with the containing cavity, and the end, provided with the end socket, of the diffusion pipe is contained in the containing cavity from the opening. Each silencing structure comprises a resistive silencing assembly and a reactive silencing assembly, each resistive silencing assembly comprises multiple silencing pieces which are distributed in parallel at intervals, and the silencing pieces are arranged in the direction of the central axis of the body shell of the silencing tower. The silencing tower can achieve the aim of increasing the silencing amount by adding the silencing structures at will according to the requirement of a user for the silencing amount.

Description

technical field [0001] The invention relates to the field of muffler devices, in particular to an impedance compound muffler tower with the function of separating oil and gas. Background technique [0002] The muffler tower is a noise reduction device installed in the exhaust system of the engine exhaust (such as the engine test platform). Anechoic towers are an effective tool for noise control by allowing airflow to pass while blocking the propagation of sound waves. The two basic noise reduction principles of the anechoic tower are: ① the diffusion cavity can reduce the peak noise in a more concentrated frequency band; ② the sound-absorbing material provides a balanced noise reduction effect in a wider frequency range. However, the noise reduction effect of the existing anechoic tower is not enough, and the noise reduction structure is not flexible enough, and cannot be appropriately increased or decreased according to the needs of users. [0003] Therefore, it is urgent...

Claims

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Application Information

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IPC IPC(8): F01N1/10F01N13/00
CPCF01N1/082F01N1/10F01N13/00
Inventor 秦琳玲辛军
Owner 无锡世一电力环保有限公司
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