Natural gas leakage fireball action range prediction method and device

A technology of scope of action and prediction method, applied in data processing applications, special data processing applications, instruments, etc., can solve the problem that the scope of action of the fireball is smaller than the actual scope, and achieve the effect of enhancing rationality, reducing errors, and improving accuracy

Pending Publication Date: 2022-05-10
CHANGZHOU UNIV
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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a method and device for predicting the action range of a natural gas leakage fireball to solve the problem in the prior art that the predicted fireball action range is smaller than the actual range

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  • Natural gas leakage fireball action range prediction method and device
  • Natural gas leakage fireball action range prediction method and device
  • Natural gas leakage fireball action range prediction method and device

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Embodiment Construction

[0078] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0079] The invention provides a method for predicting the action range of a natural gas leakage fireball, comprising:

[0080] Determine the nature of natural gas leakage, and calculate the mass flow rate of natural gas leakage corresponding to the nature of the leakage;

[0081] According to the mass flow rate of natural gas leakage, calculate the amount of natural gas consumed by the fireball, the maximum radius of the fireball and the burning time of the fireball;

[0082] Calculate the thermal radiation flux on the surface of the fireball according to the amount of natural gas consumed by the fireball, the maximum radius of the fireball, and the burning time of the fireball;

[0083] Estab...

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Abstract

The invention discloses a natural gas leakage fireball action range prediction method and device, and the method comprises the steps: correcting an existing observation factor and a transmission coefficient, building an observation factor function related to a radiated target observation elevation angle and an atmospheric transmission coefficient function, and building an improved fireball prediction model on the basis; and then solving the fireball action range corresponding to the preset damage degree under the optimal radiated target observation elevation angle. According to the method, errors caused by neglecting observation factors and transmission coefficients when a classical prediction model carries out hazard analysis are reduced, the accuracy of hazard radius calculation is improved, and the rationality of safety assessment is enhanced.

Description

technical field [0001] The invention relates to a method and device for predicting the action range of a natural gas leakage fireball, and belongs to the technical field of natural gas storage and transportation safety prevention and control. Background technique [0002] With the continuous development of modern society and science and technology, the demand for energy is gradually increasing. As one of the main energy sources, natural gas has become the main fuel for industrial development and people's daily life. Accidents caused by natural gas leakage are difficult to detect and control, often resulting in large losses of personnel and property. Natural gas leakage generally occurs in four situations: safety discharge, jet flame, fireball fire, and steam cloud explosion. The probability of fireball accidents is low, but the destructive power is extremely strong. [0003] At present, many experts and scholars have begun to study the hazards of fireball caused by natural ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q50/06
CPCG06F30/20G06Q50/06
Inventor 周星郝永梅蒋军成邢志祥吴凡黄勇
Owner CHANGZHOU UNIV
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