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Micro girth liquid film noise reduction device for centrifugal compressor

A centrifugal compressor and micro-ring technology, which is applied in the field of air-conditioning compressors, can solve the problem of fluid dynamic noise without good noise reduction and other problems, so as to enhance condensation heat transfer efficiency, reduce exhaust temperature, isolate and absorb noise Effect

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

AI Technical Summary

Problems solved by technology

[0008] The existing technology is mainly to reduce the vibration between the compressor and the frame to reduce the vibration noise of the compressor, but there are no good noise reduction measures for the fluid dynamic noise during the operation of the compressor

Method used

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  • Micro girth liquid film noise reduction device for centrifugal compressor
  • Micro girth liquid film noise reduction device for centrifugal compressor
  • Micro girth liquid film noise reduction device for centrifugal compressor

Examples

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Embodiment Construction

[0027] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

[0028] The centrifugal compressor micro-annular seam liquid film noise reduction device of the present invention includes an impeller 1, a volute 11, and a diffuser 10, and an exhaust flow channel 2 is formed between the volute 11 and the diffuser 10. Inside the volute 11 The vortex flow channel 3 is provided, and the vortex flow channel 3 is connected with the exhaust flow channel 2. The outer side of the impeller 1 is provided with a circular liquid storage baffle 4, and the liquid storage baffle 4 is provided with a micro-circular seam connecting plate 9 , the space between the liquid storage baffle plate 4 and the micro-annular seam connecting plate 9 forms a micro-annular seam flow channel.

[0029] The micro-annular seam channel includes a liquid storage chamber 7, one side of the liquid storage chamber 7 is connected to the exhaust flow channel 2...

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Abstract

The invention relates to an air condition compressor technology, in particular to a device for reducing fluid dynamics noise in the operation of a compressor. A micro girth liquid film noise reduction device for a centrifugal compressor comprises an impeller (1), volute casings (11) and diffusers (10), the volute casings (11) are separated from the diffusers (10) through exhaust passages (2), volute chamber passages (3) are arranged in the volute casings (11), the volute chamber passages (3) are communicated with the exhaust passages (2), an annular liquid storage baffle (4) is arranged outside the impeller (1), a micro girth connecting plate (9) is arranged in the liquid storage baffle (4), and the liquid storage baffle (4) is separated from the micro girth connecting plate (9) through a micro girth passage. Due to the fact that liquid refrigerants form a layer of flowing liquid film in the passages due to the viscosity and the surface tension of the liquid refrigerants, the liquid film can effectively isolate and absorb noise and prevent the noise from being spread.

Description

technical field [0001] The invention relates to an air conditioner compressor technology, in particular to a device for reducing fluid dynamic noise during compressor operation. Background technique [0002] At present, with the development of society, the demand for air-conditioning units in all walks of life is increasing, especially the demand for large and medium-sized central air-conditioning units is increasing year by year. Above 100dB, the sound wave frequency is in the range of 2000Hz to 6000Hz, which belongs to the medium and high frequency sound wave, which overlaps with the most sensitive area of ​​the human ear to the sound wave frequency of 2000Hz to 4000Hz, which is very easy to cause harm to the human body. It is a serious noise pollution and seriously affects the human body. The physical and mental health of those around it and the working environment. [0003] The main noise sources during the operation of the air conditioning unit are the mechanical noise...

Claims

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Application Information

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IPC IPC(8): F04D29/66F04D29/58
Inventor 赵书福苏从兵曹成林王丽娟赵春晓韩大帅黄琳于红霞
Owner 乐金空调(山东)有限公司
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