Low backpressure rotary compressor

A rotary compressor, low back pressure technology, applied in the field of compressor construction, can solve the problems of increased compression power consumption, reduced compressor suction capacity, performance degradation, etc., to achieve low circulation loss, improve overall machine efficiency, and work The effect of suitable temperature
CN103511275AActive Publication Date: 2014-01-15GUANGDONG MEIZHI COMPRESSOR
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG MEIZHI COMPRESSOR
Publication Date
2014-01-15

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Abstract

The invention discloses a low backpressure rotary compressor. The low backpressure rotary compressor comprises a housing, a motor and a compressing mechanism; the inside of the housing is provided with a chamber; the top of the housing is provided with an air suction pipe; the motor is arranged in the chamber, and the chamber is divided into an upper chamber and a lower chamber by the motor; channels are arranged between the outer surface of the motor and the inner surface of the housing, and / or in the motor; one end of each channel is communicated with the upper chamber, and the other end of each channel is communicated with the lower chamber; the compressing mechanism is arranged under the motor, and is provided with an air suction pot. Exhaust volume of the low backpressure rotary compressor is V, flow area of the channels is S, rotating speed of the motor is F, and flow rate of air passing through the channels is v, so that v=(V*F) / S. When F<=60rad / s, 2(m / s)<=v<=25(m / s); when F>60rad / s, 8(m / s)<=v<=40(m / s). The low backpressure rotary compressor is reasonably designed, so that cooling effect is excellent, and flow resistance of air in the channels is reduced.
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Description

technical field

[0001] The invention relates to the technical field of compressor construction, in particular to a low back pressure rotary compressor. Background technique

[0002] The rotary compressors that have been widely used all adopt the structure of high pressure in the shell, that is, high back pressure. After the refrigerant returned from the system to the compressor passes through the gas-liquid separator, the gaseous refrigerant is directly sucked into the cylinder to complete compression. The compressed high-temperature and high-pressure refrigerant is discharged into the inner space of the compressor shell, and after cooling the motor, it is discharged from the compressor and enters the system circulation.

[0003] Compared with the rotary compressor with high back pressure structure, there is a rotary compressor with low back pressure structure in which the pressure inside the casing is low, that is, the inside of the casing communicates with the suction pres...

Claims

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