Dangerous chemical leakage pollution evaluation method

A technology of hazardous chemicals and leakage sources, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems affecting normal work and life, hazardous chemical leakage, etc., and achieve simple use and hazardous chemical leakage Accurate Effects of Pollution Assessment Methods

Inactive Publication Date: 2012-12-26
HENAN POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

With the development of modern industry, hazardous chemical leakage accidents occur more and more frequently, causing huge casualties and property losses, and also involving a large number of emergency evacuation problems, seriously affecting people's normal work and life, causing extremely bad social impact

Method used

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  • Dangerous chemical leakage pollution evaluation method
  • Dangerous chemical leakage pollution evaluation method
  • Dangerous chemical leakage pollution evaluation method

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Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] figure 1 It is a flow chart of the hazardous chemical leakage pollution assessment method described in the present invention. Such as figure 1 As shown, the dangerous chemical leakage pollution assessment method described in the present invention comprises the following steps:

[0023] Step 1. According to the ambient wind speed u and the leakage duration T 0 and the distance d between the observer and the diffusion source of hazardous chemicals. After determining whether the diffusion source of hazardous chemicals is an instantaneous leakage source or a continuous leakage source, perform step 2.

[0024] Step 2. According to the diffusion mode of hazardous chemicals as heavy gas cloud diffusion or non-heavy gas cloud diffusion,...

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Abstract

The invention provides a dangerous chemical leakage pollution evaluation method. The method comprises the following steps: (1) determining a dangerous chemical dispersion source as an instantaneous leakage source or a continuous leakage source; (2) dividing the source dispersion into heavy gas dispersion and non-heavy gas dispersion of the instantaneous leakage source, and heavy gas dispersion and non-heavy gas dispersion of the continuous leakage source; (3) causing the heavy gas of the instantaneous leakage source to disperse at a concentration meeting a formula shown in the specification; (4) causing the non-heavy gas of the instantaneous leakage source to disperse at a concentration meeting a formula shown in the specification; (5) causing the heavy gas of the continuous leakage source to disperse at a concentration meeting the formula c=b0h0c0 / (bh) in the horizontal direction; (6) causing the non-heavy gas cloud of the continuous leakage source to disperse at a concentration meeting a formula shown in the specification; and (7) determining and displaying the pollution range. The method has the characteristics of accuracy, intuition and the like, is simple to use and can be widely used in the industries of chemical engineering, petrochemical, natural gas and the like.

Description

technical field [0001] The invention relates to an evaluation method, in particular to an evaluation method for leakage pollution of hazardous chemicals. Background technique [0002] In the chemical, petrochemical, natural gas and other industries, there are a large number of toxic and harmful hazardous chemicals. These hazardous chemicals are always in danger of leakage in all aspects of production, transportation, storage and use. Under normal circumstances, for the convenience of storage and transportation, according to the nature of hazardous chemicals, storage methods such as normal temperature pressurization and low temperature pressurization are often used. Once the hazardous chemicals leak out, they will form a cloud near the ground, which will cause serious harm to nearby people. With the development of modern industry, hazardous chemical leakage accidents occur more and more frequently, causing huge casualties and property losses, and also involving a large numbe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 朱贞卫张素妍李同卓王华王发辉孙志君孟凡茂
Owner HENAN POLYTECHNIC UNIV
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