twin screw compressor
A compressor and twin-screw technology, which is applied in the field of compression machinery, can solve the problems of mutual constraints between the area utilization coefficient and the rotor stiffness, and achieve the effect of improving stiffness and increasing the area utilization coefficient
Active Publication Date: 2016-04-06
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] In the prior art, the profiles of the female and male rotors of screw compressors are generally composed of quadratic curves such as circular arcs. This type of rotor profile has the problem of mutual constraints between the area utilization coefficient and the rotor stiffness.
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[0014] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0015] The invention provides a twin-screw compressor, which comprises a casing and a female rotor and a male rotor which are arranged in the casing to mesh with each other and rotate in opposite directions. The tooth profiles of the female rotor and the male rotor are bilaterally asymmetrical. Wherein, the tooth curve of the female rotor includes an elliptical curve segment; the tooth curve of the male rotor includes an elliptical envelope curve segment generated by the conjugation of the elliptical curve segment on the female rotor.
[0016] In the twin-screw compressor of the present invention, the tooth profiles of the female rotor and the male rotor are designed by combining arcs, ellipses...
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The invention provides a double-screw compressor. The double-screw compressor comprises a shell body, a female rotor and a male rotor, wherein the female rotor and the male rotor are arranged in the shell body, engage with each other, and rotate in opposite rotation directions; the tooth forms of the female rotor and the male rotor are both in a bilateral asymmetric tooth shape, wherein the tooth curve of the female rotor comprises elliptical curve sections, and the tooth curve of the male rotor comprises an elliptical envelop curve section, which is generated by conjugation of elliptical curve sections on the female rotor. The double-screw compressor provided by the invention utilizes the ellipse and tooth forms of the female rotor and the male rotor of the envelop curve to form a lateral asymmetric tooth shape, enlarges the area utilization coefficient of the double-screw compressor, and improves the rigidness of the tooth of the female rotor.
Description
technical field [0001] The present invention relates to the field of compression machinery, more specifically, to a twin-screw compressor. Background technique [0002] The twin-screw compressor has a shell and a pair of intermeshing, opposite-rotating helical tooth rotors arranged inside the shell. The rotor with protruding tooth surfaces is the male rotor, and the tooth surface is concave. The female rotor. The two ends of the casing of the compressor are respectively provided with a suction port and an exhaust port. With the rotation of the rotor in the casing, the working volume is constantly changed by the meshing or disengagement of the teeth, thus periodically changing the rotor every time. For the volume between the alveolar, the purpose of suction, compression and exhaust is achieved. [0003] In the prior art, the profiles of the female and male rotors of screw compressors are generally composed of quadratic curves such as arcs, and such rotor profiles have the pr...
Claims
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IPC IPC(8): F04C18/16F04C29/00
Inventor 张天翼文命清周艳辉金永飞蔺维君毕雨时李日华
Owner GREE ELECTRIC APPLIANCES INC