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Rotor profiles of screw compressors

A technology of screw compressors and rotors, applied in mechanical equipment, machines/engines, rotary piston pumps, etc.

Inactive Publication Date: 2013-08-21
江苏皋泰汽车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the popular molded wires in the market include GHH molded wires, Hitachi molded wires, SRM molded wires, etc. They all have their own characteristics, but they also have their own independent problems.

Method used

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  • Rotor profiles of screw compressors

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Effect test

Embodiment Construction

[0054] The construction of the screw compressor rotor end surface profile of the present invention will be described in detail below with reference to the drawings and embodiments.

[0055] see figure 1 , The present invention provides a screw compressor rotor profile, which uses nine sections of curves to form the rotor end surface profile. The profile series of the two rotors of the screw compressor are formed by rotors with the same center distance A and different numbers of heads. The profiles of the first rotor 1 and the second rotor 2 are composed as follows:

[0056] R 1 is the root circle radius of the first rotor, R 10 is the addendum circle radius of the first rotor.

[0057] R 2 is the radius of the dedendum circle of the second rotor, R 20 is the addendum circle radius of the second rotor.

[0058] R 1 =R 2 , R 10 =R 20 , pitch circle R 1j =R 2j =(R 1 +R 10 ) / 2.

[0059] c 1 、h 1 point on the pitch circle of the first rotor, c 2 、h 2 Point on th...

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Abstract

The invention relates to rotor profiles of screw compressors. The rotor profiles are characterized in that nine curves are respectively adopted to form rotor end face profiles with two asymmetrical sides; and the rotors with the same center distance A and different head numbers form the profile series of two rotors of the screw compressors. The rotor profiles are novel multi-head conjugate rotor end face profiles which are also called self-conjugate profiles, and the profiles comprise circular arcs and envelope curves. The two rotors, namely a female rotor and a male rotor are identical, wherein each rotor takes the pitch circle as the boundary, the crest part plays a role of the male rotor, the root part plays a role of the female rotor, and the functions of the female and male rotors are integrated. The screw compressors applying the rotor profiles can be widely applied in the fields such as air compression, refrigeration, air conditioning, process gas compression and the like, and hold most shares of the market under the working conditions of middle and low pressure.

Description

technical field [0001] The invention relates to a screw compressor, in particular to a screw rotor profile suitable for the screw compressor. Background technique [0002] The quality of the end surface profile of the screw compressor will directly affect the performance of the screw compressor, such as sealing, efficiency, and area utilization coefficient. At present, the popular molded wires in the market include GHH molded wires, Hitachi molded wires, SRM molded wires, etc. They all have their own characteristics, but they also have their own independent problems. Contents of the invention [0003] The present invention develops a screw compressor rotor profile on the basis of absorbing the advantages of the existing screw compressor profile at home and abroad. It is a new type of screw compressor rotor profile, which solves the above-mentioned prior art the existing problems. [0004] Technical solution of the present invention is as follows: [0005] A rotor profil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C29/00F04C18/16
Inventor 张玉新
Owner 江苏皋泰汽车部件有限公司