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Silencer of centrifugal compressor

A technology of centrifugal compressors and noise reduction devices, which is applied to parts of pumping devices for elastic fluids, mechanical equipment, non-variable pumps, etc., can solve problems such as noise, and achieve noise reduction, wide applicability, The effect of simple structure

Inactive Publication Date: 2014-01-08
乐金空调(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical effects of the present invention can overcome the above-mentioned defects, and provide a noise reduction device for a centrifugal compressor, which well solves the problem that the current centrifugal compressor cannot effectively reduce the noise generated during operation

Method used

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  • Silencer of centrifugal compressor
  • Silencer of centrifugal compressor
  • Silencer of centrifugal compressor

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0020] The centrifugal compressor noise reduction device of the present invention includes a shaft 1, a bearing 2, an impeller 9 and an impeller cover 8, the shaft 1 is arranged on the volute 6 through the bearing 2, the end of the shaft 1 is fixedly connected to the impeller 9, and the outside of the impeller 9 is provided with The impeller cover 8, the impeller cover 8 is arranged on the diffuser 7, the diffuser 7 is wrapped in the volute 6, the volute 6 is hollow inside to form the volute flow channel 5, the space between the volute 6 and the diffuser 7 and the impeller 9 and the impeller cover 8 are separated into an exhaust passage 10, the exhaust passage 10 communicates with the volute flow passage 5, the volute 6 is provided with a microporous plate 4, and the microporous plate 4 is located on the side wall of the exhaust passage 10.

[0021] ...

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Abstract

The invention relates to a silencer, in particular to a technology of a centrifugal compressor. The silencer of the centrifugal compressor comprises a shaft, a bearing, an impeller and an impeller cover, the shaft is arranged on a volute casing through the bearing, the tail end of the shaft is fixedly connected with the impeller, the impeller cover is arranged on the outer side of the impeller, the impeller cover is arranged on a diffuser, the diffuser is contained in the volute casing, the interior of the volute casing is hollow to form a volute casing channel, the volute casing is separated from the diffuser through an exhaust passage, the impeller cover is separated from the impeller through the exhaust passage, the exhaust passage is communicated with the volute casing channel, a porous plate is arranged on the volute casing, and the porous plate is arranged on the side wall of the exhaust passage. The silencer has the advantages that a plurality of cavity structures are formed by annular ribs in the porous plate and the volute casing, and the noise of the centrifugal compressor is greatly reduced. The silencer is simple in structure, easy to achieve and wide in applicability, and does not influence the overall working efficiency of the centrifugal compressor.

Description

technical field [0001] The invention relates to a noise reduction device, in particular to a centrifugal compressor technology. Background technique [0002] With the development of society, centrifugal compressors are becoming more and more popular, but centrifugal compressors will generate a lot of noise during operation. Often living in such a noisy environment is harmful to the physical and mental health of centrifugal compressor operators. The noise of the centrifugal compressor is mainly composed of mechanical noise and gas dynamic noise. The general technology is to reduce the noise of the compressor by adding a vent muffler at the exhaust end of the compressor, or by spraying liquid to reduce noise. However, this technology can only solve part of the noise generated when the gas is discharged from the compressor, but cannot solve the noise generated by the gas flow and mechanical movement inside the compressor. How to effectively reduce the noise of centrifugal compr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66
Inventor 韩大帅赵书福苏从兵曹成林王丽娟赵春晓黄琳于红霞
Owner 乐金空调(山东)有限公司
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