Gas explosion simulation test system and method

Abstract

The invention discloses a gas explosion simulation test system and method and belongs to the technical field of explosion tests. The test method comprises the following steps: checking the connecting integrity of a sensor, and starting a data acquisition unit; starting a high-speed camera and computer software, and adjusting the shooting angle of the high-speed camera; opening an air outlet valve, and vacuumizing a simulated roadway by using a vacuum pump; opening an air inlet valve, a methane gas cylinder, an air bottle, a reducing valve, a solenoid valve and a flowmeter, and regulating to obtain the test premix gas under different gas concentrations; igniting through an igniter, triggering the data acquisition unit to acquire pressure and temperature data, and starting the high-speed camera to shoot the gas explosion process through externally triggering; analyzing and processing the acquired data and image, and finding the gas explosion rule. The method has the advantages that the explosion stress wave propagation rule, temperature change rule and smoke and flame change rule in the gas explosion process can be obtained, and quantified and refined description in the gas explosion process is realized.

Description

technical field [0001] The invention relates to the technical field of explosion tests, in particular to a gas explosion simulation test system and method. Background technique [0002] my country is a big country in coal production and consumption in the world. It is estimated that coal will account for more than 50% of the main energy in 2050. However, coal production is facing various coal mine disasters, especially gas disasters. Among the accidents, gas accidents accounted for 71% of the fatalities. Among them, gas explosions can not only cause a large number of casualties, but also destroy shaft facilities, interrupt production, and sometimes cause secondary coal mine disasters such as coal dust explosions and mine fires. Therefore, the research on the law of gas explosion is of great significance to the prevention and control of gas disasters, and is the basis for ensuring the safety of coal mine production. [0003] Mine gas is a general term for various toxic and h...

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Problems solved by technology

For the patents on the simulation test research of the explosion process, only the intelligent gas explosion experimental demonstration device (application number: CN200910064363.0) invented

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