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High differential pressure high accuracy cage type pressure regulating device

A high-precision, high-pressure differential technology, applied in fluid pressure control without auxiliary power, safety valves, engine components, etc., can solve the impact of service life, pressure regulator pressure adjustment range and adjustment accuracy limitations, rubber film strength is difficult Meet the use requirements and other issues, to achieve the effect of prolonging the service life, small fluctuations, and small pressure differences

Active Publication Date: 2006-01-18
四川长仪油气集输设备股份有限公司
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Problems solved by technology

In this way, the pressure adjustment range and adjustment accuracy of the pressure regulator are greatly limited, and the service life is also greatly affected. Especially when the adjustment working pressure range is at the pressure level of 6.3Mpa, the strength of the rubber film is difficult to meet the use requirements.

Method used

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  • High differential pressure high accuracy cage type pressure regulating device
  • High differential pressure high accuracy cage type pressure regulating device
  • High differential pressure high accuracy cage type pressure regulating device

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Embodiment Construction

[0022] The present invention will be further described below according to the accompanying drawings:

[0023] figure 1 Shown is one of the embodiments of the present invention. The pressure regulator of the present invention is composed of a main valve, a pressure stabilizing valve and a pilot valve. It is the actuator; the function of the pressure stabilizing valve is to use the medium pressure and the spring force to make the change of the inlet and outlet pressure of the main valve always make the control pressure of the membrane chamber of the main valve change towards the set pressure stability direction, increasing The adjustment range can reduce the adjustment pressure residual value and improve the adjustment accuracy; the function of the command valve is to feed back the signal tube to the command valve diaphragm chamber according to the change of the inlet and outlet pressure of the main valve, and change the change of the valve opening degree to realize the pressure...

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Abstract

This invention relates to a high pressure accurate basket booster used in gas transmission and to adjust gas pressure, which comprises main valve, stabilizing valve, bossing valve, wherein the main valve uses rubber film as drive structure and uses valve bar, core and socket as execution structure; the stabilizing valve is composed of valve case between upper and down covers and valve bar in the case and spring and rubber film; the main valve cover and core are matched with column steps designed as screw shape; the inner chamber is opened with ring gas tank without terminating sealed requirement.

Description

technical field [0001] The invention relates to a valve, in particular to a high-pressure differential and high-precision cage pressure regulator used in a gas transmission and distribution system to regulate gas pressure. Background technique [0002] At present, in the gas transmission and distribution system, self-operated pressure regulators, axial flow pressure regulators and meander flow pressure regulators are mostly used for gas pressure regulation. These regulators use rubber membrane as the transmission device. When the regulator is working, the self-operated and axial flow regulators use the pressure difference between the upper and lower membrane chambers to overcome the specific pressure of the spring seal to achieve pressure balance adjustment; meander flow The pressure regulator uses the pressure difference between the upper and lower membrane chambers to overcome the spring return effect to achieve pressure balance adjustment. At the same time, the rubber mem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04G05D16/06
Inventor 王元清王元义
Owner 四川长仪油气集输设备股份有限公司
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