Device for lifting piston compressor air inlet valve based on time control

A time control, compressor technology, applied in pump control, mechanical equipment, machine/engine, etc., can solve the problems of high maintenance cost and huge investment, achieve low cost, low stepless adjustment, high reliability and stability Effect
CN1987098AInactive Publication Date: 2007-06-27ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2007-06-27
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A mechanism based on time control for opening the gas inlet valve of piston compressor is composed of external and internal barrels and an internal rotary axle. The continuous pressure oil coming from oil supply system is regulated by an oil pressure distributor to become pulsive pressure oil and then outputted via oil outlet. The axial movement of internal sleeve barrel can change the relative position of oil outlet to oil pressure acting region and in turn the hydraulic action time and durable open time of gas inlet valve. The longer the open time, the more the gas refluxes in cylinder and the less the gas to be actually compressed, so changing the displaced volume of compressor in stepless mode.
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Description

technical field

[0001] The invention relates to a device for controlling and opening the inlet valve of a piston compressor based on time. Background technique

[0002] Piston compressors are widely used in oil refining, natural gas transportation and other occasions with high pressure ratio and small molecules as the compression medium. Piston compressors used in process production processes generally have the characteristics of large size, high pressure, high power consumption, and high price. For a fixed compressor, its rated displacement is constant, so it is essential to equip a piston compressor with an unsteady working condition with an air volume adjustment device. The top-open intake valve adjustment has attracted much attention due to its advantages of large adjustment range, low energy consumption, and simple operation.

[0003] Figure 1 is the principle indicator diagram for adjusting the exhaust volume by opening the intake valve. In the figure, 1-2-3-4 is the...

Claims

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