Method for designing molded lines of rotor of helical lobe compressor

A technology of screw compressors and rotor profiles, which is applied in mechanical equipment, machines/engines, rotary piston pumps, etc., can solve problems such as failure to meet market requirements, late screw compressors, and high noise, and achieve good social benefits. Noise reduction, noise reduction effect

Active Publication Date: 2006-04-19
NINGBO BAOSI ENERGY EQUIP
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  • Abstract
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  • Claims
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Problems solved by technology

[0007] The production and application of screw compressors in my country started relatively late. After entering this century, with the development of my country's national economy, higher requirements for energy saving and environmental protection have been put forward. High, can no longer meet market requirements

Method used

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  • Method for designing molded lines of rotor of helical lobe compressor
  • Method for designing molded lines of rotor of helical lobe compressor
  • Method for designing molded lines of rotor of helical lobe compressor

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Embodiment Construction

[0017] In order to understand the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings, data tables and specific embodiments.

[0018] The technical principle and scheme adopted in the present invention are introduced in detail as follows:

[0019] 1) When designing the profile, first of all, according to the general requirements for the screw compressor rotor profile and the special requirements of the actual use occasion, one or several curves should be preliminarily selected to form the tooth curve, and then its geometric characteristics should be calculated quantitatively Value and predict its performance, adjust and optimize such as tooth number combination and profile structure parameters, etc., and finally a new type of line with superior performance can be obtained. The present invention has a great improvement in the composition tooth curve of the screw rotor profile than the usua...

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Abstract

A method for designing modeled lines of rotor on screw compressor includes selecting one or a numbers of quadric curves to form tooth curve , using quantitative calculation to calculate out geometric character value of tooth curve and predicting integral performance of said compressor, adjusting and optimizing tooth number combination and modeled lines parameter to make steam resultant torque of negative rotor with designed modeled lines be near to zero , using finite element method to analyze and calculate deformation of each element of modeled lines for confirming engagement gap and setting driving zone at driving and no driving side near to nodal circle in order to use pure roll mode to contact and transmit torque near nodal circle .

Description

technical field [0001] The invention belongs to the field of mechanical design and processing, and in particular relates to a method for designing the rotor profile of a screw compressor. Background technique [0002] Screw compressors have a series of unique advantages, and have great development potential in both domestic and international markets. Screw compressors have a series of unique advantages such as simple structure, high reliability and convenient operation and maintenance, and can be widely used in refrigeration, air conditioning and various technological processes. [0003] In the design process of the screw compressor, the design of the rotor profile often determines the overall performance of the machine. From the profile patents and development history at home and abroad, it can be concluded that screw profiles are divided into symmetrical profiles and asymmetric profiles, as well as single-sided profiles and double-sided profiles. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/16
Inventor 邢子文吴华根曹锋束鹏程
Owner NINGBO BAOSI ENERGY EQUIP
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