Pressure regulating valve

A pressure regulating valve and pressure regulating piston technology, applied in the field of pressure regulating valves, can solve problems such as gas pipeline network paralysis and safety accidents, and achieve the effects of low noise, high pressure regulation precision, and low leakage rate

Inactive Publication Date: 2014-05-28
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also some electronically controlled pressure regulating valves on the market. Although they can achieve a wide range of pressure regulation and are easy to realize unattended and remote centralized monitoring, once the power failure or control signal error occurs, the entire gas pipeline network may be damaged. Paralyzed or even a major safety accident

Method used

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Embodiment Construction

[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the embodiments described below are only illustrative and not restrictive.

[0023] Such as figure 1 As shown, the pressure regulating valve has an inlet for fluid inflow and an outlet for fluid outflow. In one embodiment, the valve body is composed of two parts, that is, the left valve body 1 and the right valve body 2 in the figure. The inner wall surfaces of the left valve body 1 and the right valve body 2 form a gas flow channel extending substantially along the axial direction of the valve body. As shown in the figure, the left and right valve bodies are positioned by seams and connected with bolts, and a sealing ring is arranged at a preferred position between the left and right valve bodies. The valve body is equipped with an end cover, a valve port seat, a diversion screen sleeve 10, a pressure regulating...

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PUM

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Abstract

The invention provides a pressure regulating valve, which comprises a valve body, a flow guide sieve sleeve, a double-piston assembly and a regulating mechanism, wherein a circulation part of the flow guide sieve sleeve is provided with a plurality of through holes extending in the axial direction of the flow guide sieve sleeve, the double-piston assembly comprises a pressure regulating piston and a balance piston and can move in the axial direction along the inner wall surface of the flow guide sieve sleeve, a pressure balance cavity is formed between the pressure regulating piston and the balance piston, and the regulating mechanism is used for controlling the flow rate and the pressure of fluid in the pressure balance cavity so that the double-piston assembly realizes the synergistic effect in the axial direction of the valve body for controlling the engaging position of the pressure regulating piston and the inner wall surface of the flow guide sieve sleeve. The pressure regulating valve provided by the invention can realize the self adaption to the pressure regulation of the pressure regulating valve, in addition, the safety is ensured, and meanwhile, the pressure at the outlet side of the pressure regulating valve is reliably stabilized in a proper range.

Description

technical field [0001] The invention relates to a pressure regulating valve used in a gas supply system, in particular to an axial flow adaptive pressure regulating valve. Background technique [0002] In the gas supply system, the pressure regulating valve is used to adjust the pressure of the medium and high pressure pipeline network of pipeline gas to enter the low pressure user. For example, the pressure of pipeline gas pipelines is usually medium pressure (0.2-0.4MPa), high pressure (2.5-4MPa) or sub-high pressure (0.8-1.6Mpa). For the pressure regulating valve used in the pipeline gas pipeline network, it is expected that the pressure regulating valve has a large flow capacity and a wide pressure regulating range, so that the main gas transmission pipeline network can expand the gas supply range and reduce the number of urban pressure regulating stations. ,Improve economic efficiency. [0003] With the continuous development of urban construction, the coverage area o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/34F16K47/02
CPCF16K17/34F16K47/02
Inventor 刘永光杨晓伟高晓辉王一轩甘家建孙健刘文磊程楠楠
Owner BEIHANG UNIV
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