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Two-section type gradient pitch double-screw compressor rotor

A compressor rotor and gradually changing pitch technology, which is applied in the direction of rotary piston machinery, mechanical equipment, machines/engines, etc., can solve the problems of large flow loss on the exhaust side, reduced air volume of the compressor, and small exhaust orifice, etc. Achieve the effect of smooth compression and exhaust process, reduce load, and reduce exhaust temperature

Pending Publication Date: 2021-11-02
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of small compressor discharge orifice and large flow loss on the discharge side in the prior art, and provide a two-stage variable pitch twin-screw compressor rotor. The two-stage variable pitch screw of the present invention The compressor rotor has a constant pitch during the suction stage, which solves the problem of the compressor's gas volume reduction

Method used

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  • Two-section type gradient pitch double-screw compressor rotor
  • Two-section type gradient pitch double-screw compressor rotor
  • Two-section type gradient pitch double-screw compressor rotor

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0032] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses a two-section type gradient pitch double-screw compressor rotor. The two-section type gradient pitch double-screw compressor rotor comprises a male rotor, a female rotor, male rotor journals and female rotor journals, wherein the male rotor is connected with bearings on the two sides of a compressor shell through the male rotor journals. the female rotor is connected with the bearings on the two sides of the compressor shell through the female rotor journals; and the male rotor journals are connected with a coupler through male rotor shaft heads. The first section close to the air suction side adopts the equal pitch, and a complete contact line is formed on the section, so that the problem that the working volume is reduced due to the gradient pitch is avoided, and the air volume of a compressor is ensured. The pitch of the second section of screw close to the exhaust side is gradually reduced, so that the internal compression with the changed pitch is increased in the compression process, the area of an exhaust orifice is increased, the flow loss during exhaust is reduced, the exhaust noise is reduced, and the efficiency of the compressor is improved.

Description

technical field [0001] The invention belongs to the technical field of compressor rotors, and relates to a two-stage gradually variable pitch twin-screw compressor rotor. Background technique [0002] Because of its simple structure, easy installation, and continuous air intake and exhaust, twin-screw compressors do not need to design intake and exhaust valves like piston compressors, and do not need to consider surge problems like fans, so they are being used more and more The wider the application. The characteristics of the rotor have a great influence on the performance of the screw compressor, so the design of the rotor is very important for the twin-screw compressor, and the current research on the rotor of the twin-screw compressor mainly focuses on the design of the rotor profile, and the present invention Focusing on the design of the third direction of the rotor, an innovative two-stage variable pitch screw compressor rotor is proposed. [0003] The current screw...

Claims

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Application Information

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IPC IPC(8): F04C18/16F04C29/12F04C29/00
CPCF04C18/16F04C29/12F04C29/00
Inventor 吴华根申瑀琦刘健康粱梦桃张倍毓林侃隆熊保顺
Owner XI AN JIAOTONG UNIV
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