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Pressure regulation and safety device for gas

A safety device and gas technology, applied in the direction of gas/liquid distribution and storage, pipeline system, mechanical equipment, etc., can solve the problems of slow response, unstable flow and pressure regulation, etc., and achieve sensitive response, simple structure and reliable operation Effect

Inactive Publication Date: 2014-10-15
北京正拓气体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The gas pressure regulation and safety device of the present invention solves the problems of slow response, unstable flow and pressure regulation in the production process, and facilitates timely adjustment of the gas supply pressure and gas supply volume as the gas consumption changes.

Method used

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  • Pressure regulation and safety device for gas

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Embodiment Construction

[0014] figure 2 It is a schematic diagram of the gas pressure regulation and safety device of the present invention. A bypass gas pipeline is installed in parallel on the main gas pipeline behind the outlet gate valve of the decarbonization system. A cut-off valve is arranged on the bypass gas pipeline, and a pneumatic pressure regulating valve is installed on the main gas pipeline. An emergency cut-off valve is set after the intersection of the bypass gas pipeline and the main gas pipeline. The pneumatic pressure regulating valve and the emergency shut-off valve are connected to the computer distributed control system. The pneumatic pressure regulating valve is a pressure-balanced regulating valve. Single-seat, sleeve-type structure, equipped with multi-spring pneumatic film actuators, and the spool of the pneumatic pressure regulating valve adopts a cage-type sleeve spool.

[0015] The gas pressure regulation and safety device can be equipped with shut-off valves on both si...

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Abstract

The invention relates to a pressure regulation and safety device for gas. A bypass gas conveying pipeline is parallelly disposed on a main gas conveying pipeline behind a decarbonization system outlet gate valve. A stop valve is disposed on the bypass gas conveying pipeline. A pneumatic pressure regulating valve is mounted on the main gas conveying pipeline. An emergency cut-off valve is disposed behind the intersection of the bypass gas conveying pipeline and the main gas conveying pipeline. The pneumatic pressure regulating valve and the emergency cut-off valve are connected with a computer distributed control system. The pneumatic pressure regulating valve is a pressure balance type regulating valve, adopts a single seat and sleeve type structure, is matched with a multi-spring pneumatic film executing mechanism, and uses a cage type sleeve valve element. The pressure regulation and safety device is simple in structure, sensitive in response, reliable in action, and the like. By the pneumatic pressure regulating valve and the emergency cut-off valve, stable and safe gas supply of a natural gas pipeline is achieved.

Description

technical field [0001] The invention relates to a gas pressure regulating and safety device, in particular to a natural gas pressure regulating and safety device. Background technique [0002] Natural gas decompression gas supply generally adopts traditional pressure reducing valve group, which is composed of multiple accessories. A set of control accessories generally consists of pressure reducing valve, pressure gauge, stop valve, Y-type filter, rubber soft joint, spring pressure gauge, Composed of pressure gauge valve, pressure gauge elbow, safety valve, etc. [0003] The natural gas pressure reducing valve consists of two parts, the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, spring and other parts. The pilot valve is mainly composed of valve seat, disc, diaphragm, spring, adjusting spring and other parts. The outlet pressure is set by adjusting the spring pressure, the change of the outlet pressure is sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D3/01
Inventor 仝志勇
Owner 北京正拓气体科技有限公司
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