Combined type steam discharge silencer

Abstract

The invention discloses a combined type steam discharge silencer. The silencer comprises a sound blocking cover which is closed at the upper end and the lower end, a drainage opening is formed in thelower end of the sound blocking cover, a first anechoic chamber is arranged at the lower part in the sound blocking cover, the middle part of the sound blocking cover is provided with a second anechoic chamber, and the upper part of the sound blocking cover is provided with a third anechoic chamber; inner cylinder bodies made of hole plates are arranged, and the inner cylinder bodies, sound absorption bodies and the sound blocking cover form a cover shell together; at least two vertically-arranged sound absorbing cylinders are arranged in the third anechoic chamber, the upper end of each soundabsorbing cylinder communicates with the outside of the sound blocking cover, and the lower ends of the sound absorption cylinders communicate with the second anechoic chamber; sound absorption cavities are formed between the sound absorption cylinders and the sound blocking cover, and the sound absorption cavities are filled with sound absorption bodies; and at least two vertically-arranged multi-stage flow-control type silencer bodies are arranged in the inner cylinder body of the first anechoic chamber, and each multi-stage flow-control type silence body is provided with a steam inlet pipeextending out of the lower end of the sound blocking cover. By means of the multi-stage flow-control type silencer bodies, most of noise can be eliminated during the primary silencing for first time,and the silencing effect is finally achieved through the secondary silencing and the tertiary silencing.

Description

technical field [0001] The invention relates to a muffler, in particular to a combined steam exhaust muffler. Background technique [0002] The steam exhaust muffler can meet the requirements of various parameters such as boiler exhaust steam to the air, safety valve exhaust steam, steam turbine exhaust steam, drain pipe exhaust steam noise reduction and noise reduction, and is widely used in steam exhaust and other industries such as electric power, petroleum, chemical industry, and metallurgy. Gas silencer emission, so that it can meet the noise standard requirements of industrial enterprises. [0003] There are many steam exhaust pipes in electric power and chemical industry systems, and exhaust noise has always been a problem that various manufacturers try to solve. With the further improvement of environmental protection requirements, the control of exhaust noise is becoming more and more stringent. Can not meet the new environmental protection requirements. Therefore...

AI Technical Summary

Problems solved by technology

[0004] In the past, silencers were installed one by one for steam pipelines, water delivery and discharge pipelines, resulting in huge investment, and the large number of equipment and pipelines installed on site is not conducive to inspection and maintenance; the most important thing is that the noise reduction effect is difficult to meet the new environmental protection requirements

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