Backpressure balanced type liquid high pressure regulation device

A technology of regulating device and high pressure, applied in the direction of measuring fluid pressure, measuring device, instrument, etc., can solve the problems of large axial thrust and difficult pressure regulation, and achieve precise pressure regulation, fast and accurate pressure, and high regulation resolution. Effect

Active Publication Date: 2013-04-03
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem in the prior art that the high axial thrust of the piston generated by the high pressure of the oil leads to the difficulty of pressure regulation. The present invention discloses a back pressure balanced liquid high pressure pressure regulating device

Method used

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  • Backpressure balanced type liquid high pressure regulation device
  • Backpressure balanced type liquid high pressure regulation device
  • Backpressure balanced type liquid high pressure regulation device

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Embodiment 1

[0045] The back pressure balanced liquid high-pressure pressure regulating device of the present invention comprises a pneumatic hydraulic pump 24, a control cut-off valve 25, a balance cut-off valve 26, a high-pressure pipeline 27, a pressure sensor 28, a test port 29, a ball screw pair 30, a worm gear Reducer 31, servo motor 32; also includes back pressure balance type adjustment device 33, such as figure 2 shown;

[0046] After the servo motor 32, worm gear reducer 31, ball screw pair 30, and back pressure balance adjustment device 33 are connected in sequence, the back pressure balance adjustment device 33 is connected to the pressure sensor 28 through the pipeline; the pneumatic hydraulic pump and the back pressure balance The type regulating device 33 is connected by a pipeline, and the middle is adjusted and controlled by the control cut-off valve 25 and the balance cut-off valve 26; the front end of the pressure sensor 28 and the back pressure balance type regulating ...

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Abstract

The invention relates to a backpressure balanced type liquid high pressure regulation device and belongs to the field of static pressure measurement and calibration. The backpressure balanced type liquid high pressure regulation device comprises a pneumatic hydraulic pump, a control stop valve, a balanced stop valve, a high-pressure pipeline, a pressure sensor, a test port, a ball screw assembly, a worm and gear reducer, a servo motor and a backpressure balanced type regulation device, wherein the backpressure balanced type regulation device comprises a ball screw pair output shaft, a slotted conical end fastening screw, a sealing group A, a guide wearing ring, a bracket, a sealing group B, a slotted flat end fastening screw, an O-shaped ring, an inner hexagonal cylindrical screw, a spring gasket, a sealing group C, a pressure regulating piston cylinder, a bushing, a pressure regulating piston, a supporting ring, a nut, a retainer ring, a limiting screw plug, a top column, a backpressure piston, a baffle ring, a backpressure piston cylinder and a transition cylinder. According to the device, the problem that the high oil pressure has large axial thrust on the piston in the actual high-pressure using process in a variable volume pressure control technology is solved, and the high-pressure pressure is easily and accurately regulated.

Description

technical field [0001] The invention relates to a liquid high-pressure pressure regulating device, in particular to a back pressure balanced liquid high-pressure pressure regulating device, which belongs to the field of static pressure measurement and calibration. Background technique [0002] Pressure is one of the basic quantities in the field of mechanical metrology. As an important part of pressure testing, the measurement of liquid high pressure has been widely used in aviation, aerospace, shipbuilding, oil exploration and other fields. It also plays an important role in civil industries such as automobile industry and other manufacturing industries. With the development of on-site calibration technology It is proposed that the demand for high-voltage calibration testing is becoming more and more extensive. Various high-voltage power systems in the national defense industry and safety monitoring systems for high-pressure containers all use high-pressure instruments. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L27/00
Inventor 盛晓岩彭轶李鑫武王丽张贤李群赵静
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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