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Method for employing corrugated pipe as working chamber of positive displacement type compressor

A volumetric compressor and bellows technology, which is applied in the direction of liquid variable displacement machinery, pumps with flexible working elements, mechanical equipment, etc., can solve the problems of complex structure, high reciprocating frequency, and many energy transmission links

Inactive Publication Date: 2008-05-07
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The piston compressor driven by a rotating motor has a short piston stroke and high reciprocating frequency. The whole system has a complex structure, many energy transmission links, and low mechanical efficiency. The efficiency of the whole machine is generally 0.30-0.40, and the operation noise is large.
Especially when the piston compressor is used as a low-pressure or medium-pressure air source, its shortcoming of low mechanical efficiency is even more obvious.

Method used

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  • Method for employing corrugated pipe as working chamber of positive displacement type compressor
  • Method for employing corrugated pipe as working chamber of positive displacement type compressor
  • Method for employing corrugated pipe as working chamber of positive displacement type compressor

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specific Embodiment approach

[0040]According to the above design concept of the bellows compressor, the inventor has given two specific implementations: one is driven by the interaction between the electromagnetic coil and the permanent magnet, and a metal bellows is used as the working cavity; the other is a linear induction motor. The driving mode adopts plastic bellows as the working cavity. One by one is explained below.

Embodiment approach 1

[0041] Embodiment 1: Referring to Figures 4 to 7, the two working chambers of this model are arranged horizontally and symmetrically at both ends of the mechanism body, and the metal bellows is used as the working chamber, and the two working chambers adopt the same-level working mode. One end of the bellows is fixed, and one end can move horizontally. A permanent magnet is arranged on the movable end, and an electromagnetic coil is arranged inside the bellows. When alternating current is passed through the coil, an electromagnetic field is generated in the coil, attracting the permanent magnet, that is, the compression and discharge are completed. gas process. When the electromagnetic field disappears, because the metal bellows itself has great elasticity, it can restore its original length under the action of its own elastic force, that is, the inhalation process is completed. Under the action of electromagnetic force and the elastic force of the bellows itself. The bellows...

Embodiment approach 2

[0053] Embodiment 2: Referring to Figures 8 to 13, the design scheme adopts two groups of corrugated pipes, and each group is composed of a first-level corrugated pipe and a second-level corrugated pipe. The two components are arranged symmetrically on the horizontal axis. The difference from the first design scheme is that this scheme adopts plastic bellows and linear induction motor as the driving device. The working principle of the bellows is the same as that in the first design.

[0054] The linear induction motor mover (motor shaft) reciprocates in the horizontal direction, and the two ends of the mover are respectively connected with the moving ends of the primary and secondary bellows. When the mover moves to the outside, the first-stage bellows completes the compression and exhaust process, and the second-stage bellows completes the suction process; when the mover moves to the inside, the first-stage bellows completes the suction process, and the second-stage bellows...

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Abstract

The present invention discloses a process for adopting an accordion pipe as working chamber body of a displacement compressor, wherein an accordion pipe (metal bellows or plastics accordion pipe) capable of freely extending and shrinking is applied in the design of the displacement compressor to replace the original working mode of the displacement compressor that reciprocation of pistons in cylinder is used to improve the gas pressure. The displacement compressor designed by adopting the process in accordance with the present invention can be used for middle and low pressure stabilization air sources, can also find applications in refrigeration industry, as compressors used in cabinet cooler, air conditioner and the like. Since only a minor driving force is necessary during its working, then its driving device can have multiple choice. Electric rotating machine adopted by piston type compressor, straight line motor in fast progression nowadays, magneto dynamic system designed ourselves, and the like, can all satisfy the design requirements.

Description

technical field [0001] The invention belongs to the field of engineering machinery, and relates to a method for using a bellows tube as a working cavity of a positive displacement compressor. It replaces the original positive displacement compressor, which relies on the reciprocating motion of the piston in the cylinder to increase the gas pressure. The positive displacement compressor designed by the method of the invention can be used as a stable gas source of medium and low pressure, and can also be used as a compressor for refrigerators, air conditioners, etc. in the refrigeration industry. Background technique [0002] The bellows is an elastic tube that can expand and contract freely under the action of external force. At present, the technology used to make bellows has become more and more mature. The pressure that metal bellows can withstand has reached more than 20Mpa, and the number of telescopic movements has reached one million times. Although plastic bellows ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B45/027
Inventor 何茂刚张颖
Owner XI AN JIAOTONG UNIV