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Inflammable gas explosion venting inerting inhibition method and device thereof

A suppression device and explosion venting technology, which is applied in the container filling method, container discharge method, gas/liquid distribution and storage, etc., can solve the problems of container and personnel injury, so as to improve economic benefits, reduce costs, and avoid unsafe effect of factors

Active Publication Date: 2018-12-11
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a combustible gas deflagration inerting suppression method and its device, the purpose of which is that the materials stored in the container (such as mixed gas such as methane) will have relatively large energy shock waves and explosions in case of fire or explosion. The flame is generated, breaks through the bursting disc, and is released in the adjacent container or the environment, so as to solve the problem that the excessive pressure of the shock wave and flame will cause damage to the adjacent container and personnel

Method used

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  • Inflammable gas explosion venting inerting inhibition method and device thereof
  • Inflammable gas explosion venting inerting inhibition method and device thereof
  • Inflammable gas explosion venting inerting inhibition method and device thereof

Examples

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Effect test

Embodiment 1

[0041] The first container is stored at normal pressure, and its pressure is atmospheric pressure, that is, 0.1MPa. The shock wave overpressure indicates the partial pressure exceeding the atmospheric pressure caused by the shock wave. The pressure detected by the pressure sensor in the second pipeline is the shock wave overpressure △p(MPa ) and the atmospheric pressure (MPa).

[0042] According to the fact that most of the shock wave overpressure generated by the explosion of combustible gas storage tanks does not exceed 0.05MPa, this embodiment will further explain based on the shock wave overpressure of 0-0.05MPa.

[0043] As shown in Table 1, the hazards caused by shock wave overpressure to the human body, different safety strategies are selected according to different hazard levels: when the shock wave overpressure △p is less than 0.2MPa, this situation is not easy to cause personal injury, and the control system does not open The first control valve and the second control ...

Embodiment 2

[0049] The first container is stored at normal pressure, and its pressure is atmospheric pressure, that is, 0.1MPa. The shock wave overpressure indicates the partial pressure exceeding the atmospheric pressure caused by the shock wave. The pressure detected by the pressure sensor in the second pipeline is the shock wave overpressure △p(MPa ) and atmospheric pressure (MPa).

[0050] According to the fact that most of the shock wave overpressure generated by the explosion of combustible gas storage tanks does not exceed 0.05MPa, this embodiment will further explain based on the shock wave overpressure of 0-0.05MPa.

[0051] As shown in Table 2, the hazards caused by the shock wave overpressure to structures, different safety strategies are selected according to different hazard levels: when the shock wave overpressure △p is less than 0.2MPa, this situation will only cause the door and window glass to be partially broken, Most of the door and window glass on the pressure surface ...

Embodiment 3

[0058] This embodiment further explains the operation process of the combustible gas explosion venting inerting suppression device in combustible gas explosion accidents:

[0059] When an explosion occurs, the flame and shock wave will break through the first rupture disc and pass through the sensor, and the control system will judge how to open the control valve:

[0060] (1) When the pressure is lower than 0.12MPa, the control system does not open the first control valve and the second control valve. At this time, the flame and shock wave will break through the inert gas generating layer in the inerting fire extinguishing and explosion venting pipeline, and the inert gas generating agent High-temperature sublimation produces carbon dioxide, which extinguishes the flame in a tube filled with high-pressure carbon dioxide, and the shock wave overpressure generated by the accident continues to decrease, and finally breaks through the second bursting disc at extremely low pressure...

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Abstract

The invention provides an inflammable gas explosion venting inerting inhibition method and a device thereof so as to solve the problems that in the prior art, impact waves and flames can hurt near-bycontainers and personnel when the pressure of the impact waves and the flames are too high. The inflammable gas explosion venting inerting inhibition device comprises a first container connected withan inerting fire extinguishment explosion venting pipeline, the first container is filled with inflammable and combustible goods, the first container is connected with a second container through a first pipeline, one end of a second pipeline is connected to the inerting fire extinguishement explosion venting pipeline of the first container, the other end of the second pipeline is connected to thesecond container, control valves and one-way valves are arranged in the first pipeline and the second pipeline respectively, and the second container, the first pipeline and the second pipeline are all filled with high-pressure inert gas. A storage tank is connected with the container filled with the high-pressure inert gas, so that inflaming retarding can be effectively prevented, different solutions are made aiming at different accidental harms, only the inerting fire extinguishement explosion venting pipeline needs to be replaced when minor accidents occur, and the economic benefits are increased.

Description

technical field [0001] The invention belongs to the technical field of industrial safety, and specifically provides a combustible gas explosion venting and inerting suppression method and device thereof. Background technique [0002] Fire explosion is a very common hazard in the chemical and petroleum industries, which can cause immeasurable damage to surrounding personnel and the environment. Whether it is the storage or transportation of flammable and explosive dangerous substances, they are all the objects of our key protection. In order to prevent the occurrence of fire and explosion or reduce the harm caused by it, predecessors have done a lot of research on this, and invented many explosion suppression and However, fire and explosion accidents in various industries cannot be completely eliminated, and tragic accidents still occur from time to time. Therefore, the research on methods of fire suppression and explosion suppression and fire suppression and explosion venti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C13/12F17C13/04F17C1/00A62C2/00
CPCA62C2/00F17C1/00F17C13/04F17C13/12F17C2223/0123
Inventor 王志荣赵丹
Owner NANJING TECH UNIV