Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A variable pitch co-rotating meshing twin-screw compressor rotor and compressor

A compressor rotor and variable pitch technology, which is applied in the direction of machines/engines, mechanical equipment, rotary piston pumps, etc., can solve the problems of low processing difficulty, high internal compression ratio, low operating noise, etc., and achieve low manufacturing cost and meshing Good, low cost effect

Active Publication Date: 2022-07-12
XI AN JIAOTONG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a variable-pitch co-meshing twin-screw compressor rotor and a compressor for the above-mentioned problem of complicated and difficult-to-process twin-screw compressor rotors in the prior art. The processing of the compressor rotor is difficult. Low noise, low running noise, able to achieve high internal compression ratio

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A variable pitch co-rotating meshing twin-screw compressor rotor and compressor
  • A variable pitch co-rotating meshing twin-screw compressor rotor and compressor
  • A variable pitch co-rotating meshing twin-screw compressor rotor and compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0061] The first rotor profile of the co-rotating twin-screw compressor rotor of the present invention is a circle O 3 , the second rotor profile is circle O 4 . The two screw rotors of the present invention are formed by scanning the corresponding rotor profiles around the guide helix, and their independent parameters include the rotor center distance e, the first rotor profile radius r, the first rotor guide helix lead P and the rotation angle γ 1 . Its design process is as follows:

[0062] 1. The rotor eccentricity e, the first rotor profile radius r and the first rotor lead P are preferably selected from the volume size, the pumping rate and the internal volume ratio. like figure 1 As shown, take the eccentric distance e of the two-screw rotor profile line as 15mm, the first rotor profile line radius r as 40mm, the second rotor profile line radius r as 40mm, and the first rotor helix lead P 1 120mm, P 2 100mm, P 3 is 60mm.

[0063] 2. According to the requirements...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A variable pitch co-rotating twin-screw compressor rotor and a compressor, the compressor rotor includes two rotors with eccentric circular structures, the eccentricity e is equal, and the two rotors have the same profile and are tangent to each other. , the pitch radius r of the two rotors p1 , r p2 Equal to the radius r of the profile line, the profiles of the two rotors are formed by the profile lines of the two rotors guided by the variable pitch helix; the two rotors rotate clockwise or counterclockwise at the same angular velocity around their respective pitch circle centers Always keep the meshing relationship. The twin-screw compressor includes a casing and a rotor arranged in the casing, and the rotor adopts the variable-pitch co-rotating twin-screw compressor rotor. The coordinated rotation of the two screw rotors can realize the periodic change of the volume of the inner working cavity, meet the design requirements of the inner compression ratio, and realize the transportation and compression of the gas. The invention has the advantages of easy processing, few wearing parts, good meshing, less wear, low noise, low cost, long life and the like.

Description

technical field [0001] The invention belongs to the field of rotor processing, and in particular relates to a variable-pitch co-rotating meshing twin-screw compressor rotor and a compressor. Background technique [0002] The twin-screw compressor is a positive displacement rotary compressor, which is used to obtain high-pressure gas and has been widely used in petroleum, chemical and other industries. Twin screw compressors have a pair of intermeshing male and female rotors, which together with the casing form the elementary volume of the compressor. At present, the existing twin-screw compressor has a pair of rotors with helical teeth meshing with each other and opposite rotation directions, both of which are synchronous and reverse-rotating structures, and the driving of the screw is driven by synchronous gears, which inevitably brings cost and noise problems. On the other hand, in order to meet the meshing conditions and consider other factors such as leakage and efficie...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/16F04C29/00F04C29/12
CPCF04C18/16F04C29/00F04C29/12F04C2240/20F04C2240/30
Inventor 何志龙王嘉辰姬蓝天李丹童
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com