A variable area ratio pressure multiplier device and its adjustment method
A technology of variable area and pressure, applied in fluid pressure converters, mechanical equipment, etc., can solve the problem of high machining precision of pistons, and achieve the effect of simplifying the oil circuit
Active Publication Date: 2016-09-28
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problems that the traditional liquid pressure generation method is slow, requires a large amount of work by the hydraulic piston, and requires high machining precision of the piston, and provides a pressure multiplication device based on variable area ratio with high control speed and high control accuracy. and its adjustment method
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[0033] In order to better illustrate the technical solution of the present invention, the present invention will be further described below through a specific embodiment in conjunction with the accompanying drawings.
[0034] The variable area ratio pressure multiplier device in this embodiment has a structure such asfigure 1 As shown, it includes: air inlet 1, upper air chamber exhaust port 2, switch valve A3, upper air chamber piston stopper 4, upper air chamber 5, air chamber main body 6, O-ring 7, gas piston 8 , lower air chamber 9, lower air chamber piston stopper 10, lower air chamber exhaust port 11, switch valve B12, hydraulic seal assembly 13, hydraulic chamber main body 14, liquid outlet 15, one-way valve A17, pressure sensor 18 , oil cup 19, one-way valve B20, liquid inlet 21, hydraulic chamber 22, hydraulic dynamic seal 23, hydraulic piston 24, piston connecting rod 25, switch valve C26, air pressure pipeline 27, air pressure control unit 28, oil pressure pipe A29,...
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The invention relates to a pressure adjustment device, in particular to an area ratio-variable pressure multiplication device and an adjustment method and belongs to the static pressure measurement and calibration field. The device provided by the invention mainly comprises an air inlet, an air cavity exhaust port, a switch valve, piston limiters, an upper air cavity, a lower air cavity, a gas piston, a piston connecting rod, a hydraulic sealing assembly, a liquid outlet, an oil-pressure pipe, a non-return valve, a liquid inlet, a liquid inlet, a hydraulic cavity, a hydraulic dynamic sealing unit, a hydraulic piston, a pressure pipeline and an air pressure control unit. According to the area ratio-variable pressure multiplication device and the adjustment method of the invention, the area ratio of the gas piston and the hydraulic piston is large; in an adjustment process, the gas piston and the hydraulic piston can be in a force balanced state ultimately through utilizing circulatory reciprocating of the gas piston; and since pressure and area are in inverse relationship, pressure at a hydraulic output port can be increased in a multiplying manner compared with pressure at the air inlet. With the area ratio-variable pressure multiplication device and the adjustment method of the invention adopted, a foundation can be provided for rapid and stable production of high pressure, and full preparation can be made for further accurate control of the pressure.
Description
technical field [0001] The invention relates to a high-pressure pressure regulating device, in particular to a variable area ratio pressure multiplying device and a regulating method, belonging 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 science and technology With the application of new technologies and the introduction of on-site calibration technology, the demand for high-voltage testing is becoming more and more extensive. [0003] At present, the widely used on-site liquid high-pressure pressure measurement and calibration instruments ar...
Claims
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IPC IPC(8): F15B3/00
CPCF15B3/00
Inventor 彭轶盛晓岩李鑫武
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA