Method and device for measuring explosion shock wave energy of combustible gas

A technology of gas explosion and measurement method, which is applied to the measurement of blasting force, etc. It can solve the problems of lack of representativeness of the explosive environment, lack of intuition of the measurement data, lagging of the sensor, etc., and achieve intuitive measurement results, simple device structure, and simple operation steps. Effect

Inactive Publication Date: 2013-12-04
CHANGZHOU UNIV
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Problems solved by technology

[0005] At present, the pressure sensor installed in the explosion reactor is mainly used to measure the force of the explosive impact of combustible gas. The measured data not only lacks intuitiveness, but also lacks certain accuracy due to the hysteresis characteristics of the sensor.
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  • Method and device for measuring explosion shock wave energy of combustible gas

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Embodiment Construction

[0015] A specific embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, a barrier rack device 2 is set in the explosion box 1, a sheet barrier is placed on the barrier rack device 2, and combustible gas is rushed into the explosion box 1 so that the combustible gas in the explosion box 1 reaches an explosive concentration, and the gas is activated. The agitator 5 distributes the combustible gas evenly in the box, ignites and detonates the combustible gas in the middle of the barrier, and uses the high-speed camera 3 to shoot the trajectory of the barrier during the explosion of the combustible gas, and uses ProAnalyst motion analysis software to analyze its trajectory to obtain The instantaneous acceleration of the barrier, combined with fluid kinematics and Newton's law, the mass of the barrier and its surface area, can measure the energy of the combustible gas explosion shock wa...

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Abstract

The present invention discloses a method and a device for measuring the explosion shock wave energy of a combustible gas. Sheet-like barriers are arranged in an explosion case, and the explosion case is filled with the combustible gas, so that the combustible gas in the explosion case reaches an explosion concentration. A gas stirrer is started to make the combustible gas be distributed in the case evenly, the combustible gas is ignited and detonated in the middle of the barrier, at the same time, a high-speed camera is used to shoot the motion state of the barrier continuously, and a computer is connected to record and process the experimental data, so that the explosion shock wave energy of the combustible gas is obtained. According to the present invention, the energy generated by the explosion shock wave of the combustible gas is calculated by utilizing the motion acceleration and speed of the exploded barrier and according to the fluid kinematics and the newton's laws of motion. The method and device of the present invention possess important guidance meaning for determining the damaging range of the combustible gas explosion disaster in reality and adopting effective prevention and control measures. By the technical scheme of the present invention, the operation steps are simple, the measurement result is visual and accurate, and the structure of the explosion case is simple and is similar to the actual situation.

Description

technical field [0001] The invention relates to a technology for measuring explosion impact energy, in particular to a method and a device for measuring explosion energy of combustible gas in the presence of barriers. Background technique [0002] With the further aggravation of the global energy crisis and ecological damage, the traditional energy represented by oil and coal will not only face the severe situation of resource depletion, but also face the huge pressure of energy conservation and emission reduction. In this context, it is becoming the common choice of all countries in the world to transform the high-pollution and high-energy consumption economic growth mode and develop a "low-carbon economy" based on clean energy. As an important part of clean energy, gas energy (mostly combustible gas, mainly including natural gas, coalbed methane, shale gas, biogas, liquefied petroleum gas, hydrogen, etc.) has developed rapidly in recent years and has gradually formed a new...

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Application Information

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IPC IPC(8): G01L5/14
Inventor 王凯全王学友顾涛疏小勇
Owner CHANGZHOU UNIV
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