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Person evacuation safety evaluation method, device and apparatus in toxic gas leakage accident

A technology for personnel evacuation and safety assessment, applied in the fields of instruments, data processing applications, calculations, etc., can solve the problem of a single evacuation direction of the instantaneous lethal concentration evacuation personnel

Inactive Publication Date: 2016-10-12
CHINA ACAD OF SAFETY SCI & TECH
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  • Abstract
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Problems solved by technology

[0004] This application provides a personnel evacuation safety assessment method under poisonous gas leakage accidents, which overcomes the defects of the existing safety assessment methods that only consider the instantaneous lethal concentration and the single evacuation direction of evacuated personnel; at the same time, this application also provides a poisonous gas leakage accident The assessment method of safe area for evacuation of people under

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  • Person evacuation safety evaluation method, device and apparatus in toxic gas leakage accident
  • Person evacuation safety evaluation method, device and apparatus in toxic gas leakage accident
  • Person evacuation safety evaluation method, device and apparatus in toxic gas leakage accident

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Embodiment Construction

[0074] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0075] The first embodiment of the present application provides a safety assessment method for personnel evacuation under a poison gas leakage accident, figure 1 is a flow chart of the personnel evacuation safety assessment method provided by the first embodiment of the present application.

[0076] Such as figure 1 As shown, the safety assessment method includes:

[0077] S101, using the leakage diffusion model to simulate, and obtain the spatial concentration distribution of the toxic gas time series.

[0078] After a ...

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Abstract

The invention provides a person evacuation safety evaluation method in a toxic gas leakage accident. The method comprises steps of: carrying out simulation by using a leakage diffusion model to obtain the space concentration distribution of a toxic gas time series, namely a concentration field; simulating a person evacuation process along a predetermined evacuation path to obtain the spatial position of each evacuation individual at different time; computing the toxicity loads Pc of the evacuation individuals at the predetermined evacuation path; computing the death probabilities Pr of the evacuation individuals according to the toxicity loads Pc and the category of the toxic gas; acquiring the death rate Pd of the evacuation individuals according to the death probabilities Pr and then determining the person evacuation safety degree of predetermined evacuation path according to the death rate Pd of the evacuation individuals. The invention further provides a person evacuation safety area evaluation method in a toxic gas leakage accident and a person evacuation safety evaluation device and apparatus in a toxic gas leakage accident.

Description

technical field [0001] The present invention relates to the field of safety assessment of production accidents, in particular to a safety assessment method for personnel evacuation under poisonous gas leakage accidents. Corresponding to the above method, the present invention also relates to a personnel evacuation safety assessment device and equipment under poisonous gas leakage accidents; the present invention simultaneously The invention relates to a method and a device for evaluating a safe area for personnel evacuation under a poisonous gas leakage accident. Background technique [0002] Large-scale chemical plants built around residential areas, storage points for toxic substances, and natural gas pipelines passing through residential areas all have the potential to cause accidents. When a safety accident occurs, the source of the accident will release a large amount of toxic and harmful gases , These poisonous and harmful gases will spread to the surrounding area with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/26
CPCG06Q50/265
Inventor 席学军
Owner CHINA ACAD OF SAFETY SCI & TECH
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