Silencing absorber for screw compressor

Abstract

The invention discloses a silencing absorber for a screw compressor. The silencing absorber comprises a main barrel, a first insertion pipe, a second insertion pipe and a liquid spray gun; the main barrel is provided with an inner cavity, a partition plate is arranged in the inner cavity and divides the inner cavity into a first chamber and a second chamber, the second chamber is located on the downstream of the first chamber, the length of the second chamber is different from that of the first chamber, and the partition plate is provided with a through hole; the first insertion pipe penetrates through the top end of the main barrel and extends into the first chamber, the second insertion pipe penetrates through the partition plate, and the upper portion and the lower portion of the second insertion pipe are located in the first chamber and the second chamber respectively; and the liquid spray gun penetrates through the side face of the main barrel and extends into the first chamber, and an outlet of the liquid spray gun right faces a bottom pipe opening of the first insertion pipe. Compared with an existing silencing device, the silencing absorber has better silencing and noise reduction performance, and meanwhile the acid gas removal effect of the screw compressor can be enhanced.

Description

technical field [0001] The present invention relates to mufflers, and more particularly to mufflers for screw compressors. Background technique [0002] Mechanical noise and gas noise are the main forms of noise during the operation of screw compressors. Gas noise mainly includes suction and exhaust noise and aerodynamic noise. The inlet of the screw compressor is mainly low- and medium-frequency noise, and the expansion-type resistive muffler is generally used for noise reduction, but this type of muffler has the structural disadvantage of multiple passing frequencies. Noise cancellation is still relatively poor in certain frequency bands. In addition, under many working conditions, the compressor is driven by variable-speed equipment such as a variable-frequency motor or a steam turbine, so the muffler cannot effectively eliminate the noise at the fundamental frequency and double frequency of the compressor's suction and discharge. [0003] The oil-free screw compressor ...

AI Technical Summary

Problems solved by technology

The inlet of the screw compressor is mainly low- and medium-frequency noise, and the expansion-type resistive muffler is generally used for noise reduction, but this type of muffler has the structural disadvantage of multiple passing frequencies. Noise cancellation is still poor on certain frequency bands

In addition, under many working conditions, the compressor is driven by variable-speed equipment such as a variable-frequency motor or a steam turbine, so the muffler cannot effectively eliminate the noise at the fundamental frequency and multiplier frequency of the compressor's suction and discharge.

[0003] The oil-free screw compressor can run with liquid injection during the compression process. The liquid mainly plays the role of cooling, noise reduction, sealing, flushing, etc. during the compression process. The liquid injection can not only choose softened water, diesel oil, liquid hydrocarbons, etc. The sour gas device can also choose the absorbing liquid as the spray liquid. The Chinese invention patent titled "A Flare Gas Compression and Desulfurization Process" and the authorized announcement number is CN104307341A uses MDEA solution as the compressor spray liquid to realize partial desulfurization in the compression unit. , but there are deficiencies in the integration of compression and desulfurization processes: the effect of desulfurization in the compression process is not ideal, and the load on the back-end desulfurization and regeneration devices cannot be effectively reduced

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