Ventilation tail end silencer

Abstract

The invention discloses a ventilation tail end silencer. The silencer can be used in an air inlet end and an air outlet end of ventilation equipment. The ventilation tail end silencer is characterizedby being composed of a wire mesh, an expanding end, a silencing section, a supporting cylinder, a rectifying net, sound absorbing cotton, a transition section, a connecting flange and a base; the base is fixed on a mounting platform; the supporting cylinder is arranged on the base; the wire mesh is arranged on the outer side of an air port end of the supporting cylinder; the connecting flange isarranged on the outer side of the transition section; the silencing section, the expanding end and the transition section is connected into a whole and is arranged in the supporting cylinder; the silencing section is positioned between the expanding end and the transition section; the space between a channel formed by the expanding end, the silencing section and the transition section and the supporting cylinder is filled with sound absorbing cotton; and the rectifying net is arranged in the transition section. According to the ventilation tail end silencer, the problems of uneven airflow, turbulence and noise at an air inlet can be effectively solved, the influence on the environment form of the surrounding gas can be reduced, and the service life of the ventilating duct equipment can beprolonged.

Description

technical field [0001] The invention belongs to the field of environmental protection. It specifically relates to a ventilation end muffler, which is mainly used at the inlet and outlet of air duct ventilation pipelines as a part of air duct ventilation equipment. Background technique [0002] Due to the long path of the ventilation duct, there will be power equipment in the middle of the pipeline to accelerate the flow of gas. The inevitable uneven airflow will cause the appearance of laminar flow and eddy flow in the pipe, and the resistance will increase, affecting the flow of gas and generating noise. , especially at the inlet and outlet, the turbulent pulsation generated will cause noise, and the turbulence of the airflow entering the pipeline will affect the overall airflow shape in the pipe, and the exhausted airflow will affect the gas environment in this area, which may have adverse effects. The existing inlet and outlet sections do not deal with or install a recti...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of uneven, turbulent, and especially noise at the air outlet, the present invention provides a muffler at the end of ventilation, which can effectively solve the problems of uneven, turbulent, and especially noise at the air inlet, and can also reduce the The impact of the surrounding gas environment form can also prolong the service life of ventilation duct equipment

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