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Inert gas protector

A technology of inert gas and safety devices, applied in gas/liquid distribution and storage, pipeline systems, mechanical equipment, etc., can solve the problems of unable to maintain pressure, unable to ensure maintenance safety, quality, waste of time, etc., to save hydrogen, eliminate Major vicious accidents and the effect of ensuring safety

Inactive Publication Date: 2004-05-19
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, for the maintenance of hydrogen production equipment, it takes 72 hours to complete the gas replacement, and the pressure cannot be maintained during the maintenance, which is a waste of time and cannot ensure the safety and quality of the maintenance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 As shown, the inert gas safety device includes an inert gas container 9, a gas delivery pipe 1 connected to the inert gas container 9, and the three ports of the three-way connection pipe 7 are respectively provided with an inert gas control valve 8, a combustible gas control valve 3, and a vent valve. Control valve 6, the other end of the above-mentioned valve is respectively connected with the gas delivery pipe 1, the combustible gas pipe 2 and the vent pipe 4, and the flame arrester 5 is set on the passage where the vent pipe 4 communicates with the vent control valve 6, and the valves 3, 6 , 8 is a pneumatic film regulating valve.

[0017] Under normal conditions, the gas in the inert gas container 9 should be sufficient, and its outlet valve is normally open; the inert gas control valve 8 and the combustible gas control valve 3 on the gas safety device are closed, and the vent control valve 6 is opened to prevent the inert gas control valve from 8...

Embodiment 2

[0020] Such as figure 2 As shown, the control ends of the combustible gas control valve 3, the venting control valve 6, and the inert gas control valve 8 are respectively connected with the inert gas container 9, and the inert gas container 9 provides a pneumatic film regulating valve type combustible gas control valve. 3. For the gas required for air-opening or air-closing of the venting control valve 6 and the inert gas control valve 8, electromagnetic valves 14, 15, 16 are respectively inserted in the passages where the control ends of the three valves communicate with the inert gas container 9, The control ends of the solenoid valves 14, 15, 16 are connected with the control switches in the valve control box 10, and the solenoid valves 14, 15, 16 are controlled by the valve control box 10, and then the three valves 3, 6, 8 are air-opened or air-closed. The required gas is controlled, thereby realizing the control of the combustible gas control valve 3 , the venting contro...

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Abstract

The inert gas safety device includes valve control box, inert gas container and gas pipe communicated with it, three ports are respectively equipped with three-way connection pipe of inert gas control valve, combustible gas control valve and blowdown control valve, and another ends of said three valves are respectively communication with gas pipe, combustible gas pipe and blowdown pipe, and said three valves can be controlled in the centralization mode by means of electromagentic valve and valve control switch, also can be respectively hand-controlled. It can effectively and quickly charge the inert gas into combustible gas pipe to dilute combustible gas and extinguish fire. It also can be used for gas substitution, and maintenance and retaining pressure.

Description

technical field [0001] The invention relates to a gas security device, which is especially suitable for gas security of inflammable and explosive gases. Background technique [0002] At present, most of the gas transportation of hydrogen, oxygen, acetylene, ethane and other combustible gas system equipment adopts pipelines and is controlled by valves. Most of the gas security devices transmit the signal measured by the sensor to the control and alarm mechanism according to the gas leakage of the combustible gas pipeline, and cut off the gas source by closing the valve. For example, Chinese patent Z189215539 discloses a combustible gas leakage alarm controller. The utility model It is composed of sensing circuit, identification control circuit and alarm circuit. When the concentration of flammable gas exceeds the set value, it can continuously alarm or exhaust, and will no longer automatically stop with the temporary drop of flammable gas concentration. The alarm or exhaust ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D5/00
Inventor 邹矢勋
Owner BAOSHAN IRON & STEEL CO LTD
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