Multi-stage compressor and air conditioner
A compressor and two-stage compression technology, applied in the direction of machine/engine, mechanical equipment, liquid fuel engine, etc., can solve the problem of difficulty in arranging air supply channels, and achieve the effect of improving work efficiency
Inactive Publication Date: 2014-12-03
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0004] The present invention aims to provide a multi-stage compressor and an air conditioner to solve the problem that it is difficult to arrange air supply passages in the compact multi-stage compressor structure of the prior art
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[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0021] According to one aspect of the present invention, there is provided a multi-stage compressor, such as figure 1 and 2 As shown, the multi-stage compressor includes a first-stage compression chamber 100 where the first-stage impeller 10 is located and a second-stage compression chamber 200 where the second-stage impeller 20 is located. There is an air passage between the first-stage compression chamber 100 and the second-stage compression chamber 200 300 connection, it is characterized in that the multi-stage compressor also includes: a housing 40, at least a part of the primary compression chamber 100 is formed in the housing 40; a box body 50, at least a part of the secondary compression chamber 200 is formed in the box body 50; The compress...
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The invention provides a multi-stage compressor and an air conditioner. The multi-stage compressor comprises a primary compression cavity in which a primary impeller is arranged and a secondary compression cavity in which a secondary impeller is arranged, wherein the primary compression cavity and the secondary compression cavity are connected through an air passing channel. The multi-stage compressor further comprises a housing, a box body, a stage diffuser, an air supply channel and an air supply cavity, wherein at least part of the primary compression cavity is formed in the housing; at least part of the secondary compression cavity is formed in the box body; the stage diffuser is connected with the housing; the air supply channel is used for introducing air supply flow into the air passing channel, and is formed between the stage diffuser and the box body; the air supply cavity is communicated with the air supply channel and connected with an air source used for air supply through an air inlet, and is formed among the housing, the box body and the state diffuser. According to the invention, as the air supply cavity is surrounded by the box body, the housing and the stage diffuser, the size of the air supply cavity is not restricted by the wall thickness of the box body or the housing, benefits to the air supply flow can be given into full play, and the work efficiency of the multi-stage compressor is improved.
Description
technical field [0001] The present invention relates to the field of air conditioner equipment, more specifically, to a multistage compressor and an air conditioner. Background technique [0002] In order to improve energy efficiency, multi-stage centrifugal compressors often use the technology of supplementing air to increase enthalpy, that is, adding an air supply port on the compression stage bracket, and introducing the flash gas outside the compressor into the compressor through the gas supply port to realize interstage gas supply. , before the gas enters the next-stage compression cavity, the temperature of the gas is reduced, thereby reducing the power consumption of the next-stage compression and improving the energy efficiency of the compressor. [0003] Due to the requirements of modern technology, the structure of multi-stage compressors is becoming more and more compact, especially the volute adopts a forward-inclined structure, and the volute occupies a large sp...
Claims
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IPC IPC(8): F04D17/12F04D29/44
CPCF04D17/12F04D17/14
Inventor 钟瑞兴张治平刘华蒋楠王宏兴蒋彩云谢蓉陈玉辉刘建飞
Owner GREE ELECTRIC APPLIANCES INC