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Asymmetric sliding vane type compressor air cylinder molded line design method

A design method and sliding vane technology, applied in mechanical equipment, rotary piston machinery, rotary piston/oscillating piston pump components, etc., can solve the problems of small pressure ratio of sliding vane compressors, and achieve impact suppression. , the effect of improving the stress condition

Active Publication Date: 2019-06-07
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that the pressure ratio of the vane compressor is too small, and to enrich the types of existing cylinder profiles, the present invention proposes a design method for the cylinder profile of an asymmetric vane compressor

Method used

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  • Asymmetric sliding vane type compressor air cylinder molded line design method
  • Asymmetric sliding vane type compressor air cylinder molded line design method
  • Asymmetric sliding vane type compressor air cylinder molded line design method

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with accompanying drawing.

[0040] like figure 1 As shown, when n=1, the cylinder (1) is a single-chamber structure; A on the single-chamber cylinder profile (101) 1 Point and C 1 The points coincide; A exists on the single-cavity cylinder profile (101) 1 , B 1 Two special points, A 1 The point is the closest point on the profile line (101) of the single-cavity cylinder to the center of rotation O, which is located with the center of rotation O as the center of the circle, and the radius of rotation is R 3 on the base circle; B 1 The point is the farthest point on the profile line (101) of the single-cavity cylinder from the center of rotation O, located at the center of the circle with the center of rotation O as the center, and the radius of rotation is R 1 on the top circle of ; go clockwise from A 1 point to B 1 The point is the suction section curve A of the single cavity cylinder profile...

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Abstract

The invention discloses an asymmetric sliding vane type compressor air cylinder molded line design method. The method is suitable for design of single-cavity, double-cavity and three-cavity asymmetricsliding vane type compressor air cylinder molded lines, an air cylinder molded line on an air cylinder is composed of a secondary spiral line including suction section curves and exhausting section curves; all the sections of curves are completely and smoothly connected, the first derivative is continuous and smooth, and the second derivative is continuous; the degree of the central angle corresponding to the suction section curves is alpha<n>, the degree of the central angle corresponding to the exhausting section curves is beta<n>, the beta<n> is larger than the alpha<n>, and alpha<n>+beta<n>=2pi / n. An asymmetric working cavity is formed between the air cylinder molded line and a rotor, the situation that a center line passing through a rotation center enables the asymmetric working cavity to be symmetrical about the axis of the working cavity does not exist, the exhausting volume is decreased, the exhausting pressure is improved, the pressure ratio of a sliding vane type compressorcan be effectively increased, and the central angles corresponding to the suction section curves and the exhausting section curves can be adjusted according to the design working condition.

Description

technical field [0001] The invention relates to the field of fluid machinery, and is particularly suitable for a design method of a cylinder profile of an asymmetrical vane compressor. Background technique [0002] The vane compressor is a typical rotary volumetric fluid machine. Common vane compressors have single-chamber, double-chamber and three-chamber structures. During the rotation of the rotor, the vane is thrown out under the action of centrifugal force. The chute clings to the inner wall of the cylinder and rotates with the rotor, forming a periodically changing closed working chamber between the suction and exhaust end covers, sliding vanes, rotor and cylinder to complete the process of gas suction, compression and discharge. Compared with other types of compressors, vane compressors have the advantages of simple structure, few parts, stable operation, and small starting impact, and can be widely used in various compressed air devices, small refrigeration and air-c...

Claims

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Application Information

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IPC IPC(8): F04C18/344F04C29/00
Inventor 王君陈志凯崔淑洁沙润东李宏鑫冯浩志
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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