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Emergency treatment mode and device for fuel gas accident

An emergency treatment and gas technology, applied in valve devices, multi-way valves, safety valves, etc., can solve problems such as gas leakage, high temperature accidents and inability to be intelligent.

Inactive Publication Date: 2015-01-21
张文学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the above-mentioned prior art, the present invention proposes an emergency treatment method and device for gas accidents. When an accident occurs, a flame-retardant gas is introduced for emergency treatment of the accident, which solves the problem of existing gas pipeline transportation and gas terminals. During use, gas leakage or accidental high temperature (fire) cannot be dealt with intelligently and in a timely manner

Method used

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  • Emergency treatment mode and device for fuel gas accident
  • Emergency treatment mode and device for fuel gas accident
  • Emergency treatment mode and device for fuel gas accident

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Embodiment 1

[0038] like figure 1 As shown, the present embodiment specifically describes the present invention with two households of A and B in two buildings. In practical applications, the gas is always supplied to multiple households in multiple buildings in one community, which also includes multiple branch roads. Here, only two branches A and B are selected as examples for illustration. This system involves the intervention of flame retardant gas. In this example, nitrogen is selected as the flame retardant gas for illustration.

[0039]The gas main supply 12 provides gas for the gas branch 13 of building A and the gas branch 14 of building B. The gas branch of building A and the gas branch of building B are respectively installed with a branch A multi-media reversing valve 15 and a B branch multi-media reversing valve. Reversing valve 16, A branch gas output 17 is connected to the gas use terminal 18 of the households in Building A to provide gas for the kitchen 19 of the household...

Embodiment 2

[0045] As shown in FIG. 2 , this embodiment uses two medium input ports as an example to describe the working principle of the single-selection multi-media reversing valve. The single-selection type means that the entrance of the through hole is aligned with one medium input port each time, and the output of the medium output port is a single medium.

[0046] In this embodiment, the entrance of the through hole is configured as an outer horn, and the outlet of the through hole is configured as a dovetail. The entrance of the through hole is set in the shape of an outer trumpet, which can increase the diameter of the incision, so that the diameter does not shrink when the medium is input, and the flow of the medium is guaranteed; the exit of the through hole is set in a dovetail type, which can increase the diameter of the exit hole, so that the valve core is located at multiple positions. The full diameter of the medium can be exported to the medium output port at any angle. ...

Embodiment 3

[0052] As shown in FIG. 2 , this embodiment uses two medium input ports as an example to describe the working principle of the hybrid multi-media reversing valve. The mixed type means that the through-hole inlet can be aligned with one medium input port, or it can be aligned with two medium input ports at the same time, and the output of the medium output port can be a single medium or a mixture of multiple media.

[0053] In this embodiment, the entrance of the through hole is also configured as an outer horn, and the outlet of the through hole is also configured as a dovetail.

[0054] like Figure 3a Shown is a schematic structural diagram of a hybrid multi-media reversing valve, at this time the vertical distance d1 between the two medium input ports is smaller than the diameter d2 of the through-hole inlet;

[0055] like Figure 3b Shown is the working state diagram when the through hole entrance is aligned with the medium input port 3, and the output of the medium outp...

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Abstract

The invention discloses an emergency treatment mode and device for a fuel gas accident. The emergency treatment mode includes that stopping gas input through a multi-medium selecting device when appearing an accident, and inputting flame-retardant gas. The emergency treatment device comprises an input sampling part, a central processing part and an execution processing part; the input sampling part is connected with the central processing part, and the central processing part is connected with the execution processing part; when a value gathered by the input sampling part is higher than a preset threshold, the input sampling part sends a signal to the central processing part, after the central processing part receives the signal, the multi-medium selecting device is controlled to input flame-retardant gas instead of gas. When appearing an accident, the emergency treatment mode and device for the fuel gas accident use the flame-retardant gas; the emergency treatment mode and device for the fuel gas accident solve the problem of non-intelligent and untimely accident treatment of an existing gas use terminal.

Description

technical field [0001] The invention relates to the fields of gas pipeline transportation and gas terminal use, in particular to an emergency treatment method and device for gas accidents. Background technique [0002] The national city gas industry has made great progress in recent years. The use of gas has brought a lot of convenience to thousands of households, but the safety of gas use has always troubled people. [0003] At present, there are not many security products used in the field of gas pipeline transportation and terminal use at home and abroad, and they are not perfect. They mainly include overpressure, undervoltage, emergency shutdown protection of electromagnetic valves, and less protection against gas terminal leakage and high temperature mutations (peripheral fires). If there are precautions, small dangers cannot be found, and often lead to major accidents, such as poisoning and explosion accidents caused by gas leakage; gas fire and explosion accidents cau...

Claims

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Application Information

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IPC IPC(8): F16K11/06F16K17/36
CPCF16K11/08F16K17/386
Inventor 张文学
Owner 张文学
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