Gas explosion shock wave propagation state quickquickquickquick prediction method for emergency rescue

Abstract

The invention provides a gas explosion shock wave propagation state quickquickquickquick prediction method for emergency rescue. Obtaining propagation state big data of disaster-causing factors such as gas explosion shock waves, flame propagation pressure, temperature, toxic and harmful gas and the like near a typical explosion source, a typical uniform roadway and a typical roadway intersection point by utilizing numerical simulation or explosion experiments; factors influencing gas explosion shock waves and flame propagation are used as input nodes of the artificial neural network; disaster-causing factors such as pressure, temperature, toxic and harmful gas and the like are used as output nodes. Establishing a gas explosion shock wave propagation state quickquickquickquick prediction model; according to the method, the problem that time consumption is large in the processes of numerical simulation modeling, calculation, data analysis and processing and the like is effectively solved, under the condition that the position of an explosion source and the content of gas participating in explosion are assumed to be known, prediction of the full-wind-network propagation state of explosion shock waves and flames can be controlled to be completed within 60 seconds, and the requirement for emergency rescue is greatly met.

Description

technical field [0001] The invention relates to the field of mine gas explosions, in particular to a method for quickly predicting the propagation state of gas explosion shock waves for emergency rescue. Background technique [0002] The pressure of gas explosion shock wave, flame temperature and the toxic and harmful gas generated are called the disaster factors that cause the failure of ventilation system. After a mine gas explosion occurs, it is of great significance to quickly determine the gas explosion shock wave and flame propagation status in the mine ventilation network, which is of great significance for quickly identifying the failure mode of the mine ventilation system and formulating a decision-making disaster relief plan. [0003] At present, the research on the shock wave propagation theory of gas explosion has been relatively mature, with experiments and numerical simulation as the main research methods. Numerical simulation of gas explosion involves steps su...

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Problems solved by technology

[0003] At present, the research on the shock wave propagation theory of gas explosion has been relatively mature, with experiments and numerical simulation as the main research methods. Numerical simulation of gas explosion involves steps such as modeling, grid division, and calculation. Longer, a complete numerical simulation takes 24 hours or even longer, and the design and operation of gas explosion experiments are particularly dangerous

When a gas explosion accident occurs, it is difficult to quickly obtain the propagation state of the gas explosion shock wave pressure, temperature, toxic and harmful gases and other disaster-causing factors by using numerical simulation and experimental methods. There is no way to determine the decision-making plan for emergency rescue due to delay meeting emergency rescue needs

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