Variable cross-section hydraulic bidirectional buffer device applied to air flow regulation of reciprocating compressor

A technology of air volume adjustment and two-way buffering, which is applied in the direction of fluid pressure actuators, liquid variable capacity machines, mechanical equipment, etc. It can solve the problems of large impact of the air valve and low control precision of the buffer structure, so as to prolong the service life and shorten the The effect of technology gap and broad application prospects

Active Publication Date: 2021-06-22
BEIJING UNIV OF CHEM TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems of excessive impact of the valve and low control precision of the buffer structure in the existing compressor valve control system

Method used

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  • Variable cross-section hydraulic bidirectional buffer device applied to air flow regulation of reciprocating compressor
  • Variable cross-section hydraulic bidirectional buffer device applied to air flow regulation of reciprocating compressor
  • Variable cross-section hydraulic bidirectional buffer device applied to air flow regulation of reciprocating compressor

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Embodiment Construction

[0103] Below in conjunction with accompanying drawing and implementation example the present invention is further described:

[0104] Such as figure 1 As shown, it is a schematic diagram of the oil cylinder structure, including the first cylinder body 3, the second cylinder body 5, the third cylinder body 8, the fourth cylinder body 11, the ejector rod 12, the plunger 16, the buffer spring 21, and the lip seal ring 14. The double triangle slip ring 19 and the O-ring 15 together form a double triangle ring combined seal, the hydraulic oil enters the hydraulic oil working chamber 22 through the oil inlet 1 through the oil inlet orifice 2 to push the plunger 16 and the ejector rod 12 Moving along its central axis, the oil leakage port 7, the air leakage port 9, and the oil leakage port 4 communicate with the oil leakage recovery cavity 6, the leakage gas recovery cavity 10 and the oil leakage orifice 18 respectively, and the top of the buffer spring 21 is against the Connected ...

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Abstract

The invention discloses a variable cross-section hydraulic bidirectional buffer device applied to air flow regulation of a reciprocating compressor. In order to solve the problems that the impact of an air valve of an existing compressor air flow adjusting executing mechanism is too large, large time delay exists in the ejection time and the withdrawing time of the air valve due to the fact that a fixed-section throttling hole is adopted for buffering, and the control precision of the air valve is affected, the device combines three throttling holes for application. A variable-cross-section throttling hole is designed by means of relative movement between the throttling holes, bidirectional buffering is achieved in the ejection and withdrawal process of the air valve, meanwhile, time lag is small, and the influence on the control precision of the air valve is limited. The key point lies in the design of the relative positions and sizes of the throttling holes, and meanwhile, the double-triangular sliding ring type combined sealing is adopted, so that the sealing is safe and reliable when the two throttling holes act.

Description

technical field [0001] The invention relates to a variable cross-section hydraulic two-way buffer device applied to air volume adjustment of a reciprocating compressor. Background technique [0002] As a kind of gas delivery equipment, reciprocating compressor is widely used in aerospace, metallurgy, chemical industry and other fields. In the actual production process of compressor, because the production demand is constantly changing, the gas consumption of the whole production process is also It changes all the time, and in most cases, it does not meet the working conditions of full load operation. At the same time, a certain design margin is considered for the volume design of the compressor during design and manufacture. These factors have led to reciprocating Reciprocating compressors often operate under design conditions, resulting in a large waste of energy and increasing industrial production costs. For this reason, reciprocating compressors should be equipped with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/10F04B49/00F15B15/14F15B15/22
CPCF04B39/10F04B49/002F15B15/1423F15B15/1452F15B15/149F15B15/22
Inventor 赵得赓孙旭王瑶张进杰雷芙常洪槐斌
Owner BEIJING UNIV OF CHEM TECH
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