Screw-type compressor with adjustable interior volume specific ratio

Abstract

The invention discloses a screw-type compressor with adjustable interior volume specific ratio, comprising a compressor housing and an exhaust end housing, wherein a screw rotor is arranged between the compressor housing and the exhaust end housing; an air suction port is arranged on the compressor housing; an axial exhaust port and a radial exhaust port are arranged on the exhaust end housing; an actuating part is arranged at the radial exhaust port; the compressor housing or the exhaust end housing is also provided with a cylinder body in which a piston is arranged; an oil inlet side of thecylinder body is provided with an oil inlet; an oil outlet side of the cylinder body is provided with at least two oil outlets along the axial direction; one end of a piston rod is connected with thepiston, and the other end thereof is connected with the actuating part; and the radial exhaust port is arranged on the actuating part. In the invention, the interior volume specific ratio of the screw-type compressor can be adjusted according to needs, and the screw-type compressor has strong adaptability and good energy saving effect.

Description

technical field [0001] The invention relates to a screw compressor with adjustable internal volume ratio. Background technique [0002] Screw compressors are often used in the field of air conditioning. The existing screw compressors include a compressor housing and an exhaust end housing. A screw rotor is arranged between the compressor housing and the exhaust end housing. There is a suction port on the body, and an axial exhaust port and a radial exhaust port on the exhaust end shell. When working, the helical rotor rotates, and the refrigerant in the suction chamber is sucked from the suction port. After the screw rotor is compressed, it is discharged from the exhaust port to the exhaust chamber; however, the internal volume ratio of the existing screw compressor is fixed, that is, it cannot be adjusted according to the specific situation, and the compressor cannot be adjusted according to the specific working conditions during use. Adjustment, poor adaptability, unsatis...

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Problems solved by technology

[0002] Screw compressors are often used in the field of air conditioning. The existing screw compressors include a compressor housing and an exhaust end housing. A screw rotor is arranged between the compressor housing and the exhaust end housing. There is a suction port on the body, and an axial exhaust port and a radial exhaust port on the exhaust end shell. When working, the helical rotor rotates, and the refrigerant in the suction chamber is sucked from the suction port. After the screw rotor is compressed, it is discharged from the exhaust port to the exhaust chamber; however, the internal volume ratio of the existing screw compressor is fixed, that is, it cannot be adjusted according to the specific situation, and the compressor cannot be adjusted according to the specific working conditions during use. Adjustment, poor adaptability, unsatisfactory energy-saving effect

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