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Volute and compressor

A compressor and volute technology, applied in the field of compressors, can solve the problems of large volume of the compressor volute, high exhaust temperature, excessive vibration, etc., and achieve the effects of avoiding thermal deformation gaps, ensuring mechanical performance, and reducing temperature

Pending Publication Date: 2021-06-11
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The embodiments of the present invention provide a volute and a compressor to solve the problems of excessive vibration, high noise, and large volume of the compressor volute caused by the high exhaust temperature of the compressor in the prior art

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0025] Heat pump technology is recognized at home and abroad as a method that can effectively recover waste heat. The heat pump working medium is used to evaporate and absorb heat in the evaporator to recover industrial waste heat. After the evaporated steam is compressed by the compressor to raise the temperature and boost the pressure, its energy grade is improved. And condensed in the condenser, the released heat can be used for industrial heating, etc., and the condensed liquid working medium is returned to the evaporator through the throttle valve to complete the cycle.

[0026] There is a large amount of waste heat at 80-90°C in the industrial field, and there is also a demand for heat sources at 120-130°C. Water or steam (R718) is used as a natural working medium, and its ODP and...

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Abstract

The invention discloses a volute and a compressor. An exhaust passage is arranged in the volute, a cooling inlet for injecting cooling liquid is formed in the volute, the cooling inlet communicates with the exhaust passage, and the cooling liquid enters the exhaust passage through the cooling inlet for cooling. According to the volute and the compressor, the problems that in the prior art, due to the fact that the exhaust temperature of a compressor is high, vibration exceeds the standard, noise is large, and the size of the volute of the compressor is large can be effectively solved.

Description

technical field [0001] The present invention relates to the technical field of compressors, in particular to a volute and a compressor. Background technique [0002] In the prior art, the exhaust temperature of compressors (especially water vapor centrifugal compressors) is generally 150°C to 300°C, and the highest temperature part is the volute. In order to avoid corrosion of parts, the material of the volute is generally made of stainless steel. , In a high temperature environment for a long time, the stainless steel material will have a certain decline in mechanical properties, and the thermal deformation will be relatively large, resulting in small gaps in the flange of the volute, resulting in problems such as excessive vibration and loud noise, and In the case of high temperature, the density of water vapor is greatly reduced. In order to suppress aerodynamic noise, it is generally necessary to limit the gas flow rate at the volute, so that the size of the volute needs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/58
CPCF04D29/4206F04D29/5846
Inventor 张治平李宏波钟瑞兴蒋楠陈健
Owner GREE ELECTRIC APPLIANCES INC
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