Multi-potential gas explosion source coupled gas cloud explosion assessment method and system

A gas explosion and explosion source technology, applied in the field of gas cloud explosion evaluation, to avoid overestimation, improve analysis and calculation efficiency, and improve calculation accuracy

Pending Publication Date: 2021-11-19
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

[0006] In order to solve the above problems, this disclosure proposes a multi-potential gas explosion source coupled gas cloud explosion evaluation method and system. This disclosure mainly solves the problem of forming multiple congested areas within the gas cloud diffusion range during the process of forming a vapor cloud by the diffusion of dangerous gas , and then form the problem of explosion shock wave overpressure analysis with multiple potential gas explosion sources

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  • Multi-potential gas explosion source coupled gas cloud explosion assessment method and system
  • Multi-potential gas explosion source coupled gas cloud explosion assessment method and system
  • Multi-potential gas explosion source coupled gas cloud explosion assessment method and system

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Embodiment 1

[0044] like figure 1 As shown, the present disclosure provides a gas cloud explosion evaluation method coupled with multiple potential gas explosion sources; mainly including the following steps:

[0045] Combustible gas diffusion calculation to obtain the spatial distribution of gas cloud concentration in the region;

[0046] The integral method (the upper and lower limits of the integral are the combustion limit) calculates the mass (or volume) and explosion energy of the combustible vapor cloud participating in the explosion in each potential gas explosion source (ie, congested space);

[0047] The BST method calculates the vapor cloud explosion overpressure generated by a single gas explosion source;

[0048] The superposition effect analysis of multiple potential gas explosion sources at the same target position can obtain the explosion overpressure distribution under the conditions of multiple potential explosion sources.

[0049] Gas cloud dispersion analysis:

[005...

Embodiment 2

[0091] This embodiment provides a gas cloud explosion evaluation system coupled with multiple potential gas explosion sources, including a gas cloud concentration acquisition module, a gas cloud quality acquisition module, an explosion overpressure acquisition module, and an explosion evaluation module;

[0092] The gas cloud concentration acquisition module is configured to: obtain the gas cloud concentration according to the gas leakage time and the gas leakage height;

[0093] The gas cloud quality acquisition module is configured to: obtain the gas cloud quality according to the gas cloud concentration and the integral method,

[0094] The explosion overpressure acquisition module is configured to: obtain the explosion overpressure of multiple gas explosion sources respectively according to the gas cloud quality and the BST method;

[0095] The explosion evaluation module is configured to: obtain the superimposed explosion overpressure distribution of multiple gas explosio...

Embodiment 3

[0097] This embodiment provides an electronic device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, the multi-potential system described in Embodiment 1 is realized. Steps in a Gas Explosion Source Coupled Gas Cloud Explosion Assessment Method.

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Abstract

The invention provides a multi-potential gas explosion source coupled gas cloud explosion assessment method and system, and the method comprises the steps: obtaining the gas cloud concentration according to the gas leakage time and the gas leakage height; according to the gas cloud concentration and an integral method, obtaining gas cloud mass, and according to the gas cloud mass and a BST method, respectively obtaining explosion overpressure of the plurality of gas explosion sources; according to the obtained overpressure of the multiple gas explosion sources and a multi-explosion-source shock wave nonlinear superposition rule, obtaining the explosion overpressure distribution of superposition of the multiple gas explosion sources. According to the invention, the explosion shock wave overpressure analysis problem that multiple potential gas explosion sources are formed due to the fact that multiple congestion areas are formed in the gas cloud diffusion range in the process that dangerous gas diffuses to form steam cloud is mainly solved.

Description

technical field [0001] The disclosure belongs to the technical field of gas cloud explosion evaluation, and in particular relates to a gas cloud explosion evaluation method and system coupled with multiple potential gas explosion sources. Background technique [0002] Gas explosion source: refers to a blocked, closed space or area, and the area may produce combustible gas within the explosion limit range. After the combustible gas encounters a delayed ignition source, gas deflagration or detonation will occur. A gas explosion source is also known as a gas explosion choke. [0003] At present, the analysis of gas cloud explosion formed by combustible gas is mostly reflected in the analysis of single gas explosion source. At present, the main methods used in the analysis of the explosion effect of a single gas explosion source are TNT (trinitrotoluene explosive) equivalent method, TNO (Netherlands Academy of Sciences) multi-energy method, experimental research and numerical s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
Inventor 张新梅陈晨张俊杰王淇
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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