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

A time control and compressor technology, applied in pump control, mechanical equipment, machine/engine, etc., can solve the problems of high maintenance cost and huge investment, and achieve low cost, low stepless adjustment, high reliability and stability Effect

Inactive Publication Date: 2008-08-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, with this device, a set of such actuators must be installed on each intake valve, which requires huge investment and high maintenance costs.

Method used

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

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 2 Shown, the present invention comprises the outer sleeve 10 that is contained on the support 22, inner sleeve 14, intermediate rotating shaft 23 and two stepping motors; Form a sliding fit; the middle part of the intermediate rotating shaft 23 has a pressure relief area 39 and an oil pressure action area 42; a guide key 15 is installed between the inner sleeve 14 and the outer sleeve 10; the stepper motor 19 passes through the connecting sleeve 18, and The intermediate rotating shaft 23 at the opening end of the inner sleeve is connected, the stepping motor is installed on the support 35, the right end of the intermediate shaft 23 is supported by the bearing 17 and the end cover 16, and the other stepping motor 7 is connected to the other end of the inner sleeve through the screw rod 9. connected, the stepper motor 7 is installe...

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PUM

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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.

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 The principle indicator diagram for adjusting the exhaust volume by opening the intake valve. In the figure 1-2-3-4 is the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/08F04B49/22
Inventor 洪伟荣吴荣仁金江明
Owner ZHEJIANG UNIV
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