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High differential pressure high accuracy cage type pressure regulating device

A high-precision, high-pressure differential technology, used in fluid pressure control, safety valves, engine components, etc. Adjustment accuracy is limited and other problems, to achieve the effect of small fluctuation, prolong service life and avoid turbulent phenomenon

Active Publication Date: 2009-05-20
四川长仪油气集输设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 41 and a command valve 42 arranged on the main valve. A membrane is arranged above the valve sleeve 8 of the main valve. Pad 21, with the rubber diaphragm 3 as the transmission mechanism, the valve stem 18, the valve core 9, and the valve seat 10 as the actuator, the valve core 9 is a cylindrical stepped plunger-shaped valve core, and its upper and lower end surfaces are connected by a balance hole 16, The bottom end surface is embedded with a non-metallic annular gasket 15, which forms a sealing pair with the conical boss end surface of the valve seat 10. The pressure stabilizing valve 41 is mainly composed of the valve box between the upper and lower covers and the device inside the valve box. Co...

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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 Patents(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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