Device for testing explosion flow field of confined space combustible gas under water storage condition and method of device

Abstract

The invention discloses a device for testing an explosion flow field of a confined space combustible gas under a water storage condition and a method of the device. The device for testing an explosionflow field of the confined space combustible gas under the water storage condition comprises a pipeline system, a water supply system, a gas distribution system, an ignition control system and a dataacquisition system. The pipeline system is formed by connecting five sections of pipelines in sequence to form a closed confined space, a pair of pressure sensors and temperature sensors are separately installed at the center position of the top of each section of pipelines, the four sections of pipelines at the end are made of steel materials, a circular transparent window is installed at the center position in front of each section of pipelines, the middle section of pipelines is transparent explosion-proof glass, and high-speed cameras are arranged at positions corresponding to the circular transparent windows and the transparent explosion-proof glasses. Gas explosion experiments can be carried out under the condition that water storage and combustible gas coexist in the confined space, and process monitoring of explosion pressure, temperature and flame can be realized.

Description

technical field [0001] The present invention relates to a combustible gas explosion flow field test technology, in particular to a combustible gas explosion flow field test device and method in a confined space under water storage conditions. Background technique [0002] The research on gas explosion has a prominent position in the field of safety engineering, especially when it involves issues such as risk assessment and safety protection of urban public infrastructure, it has attracted the attention of the society. At present, gas explosion in confined space is a research hotspot, but the research on gas explosion catastrophe evolution process and disaster prevention technology in confined space is lagging behind, and a series of gas explosion accidents in urban underground confined space in recent years are all related to explosive gas and water storage. Gas explosion accidents in coexistence confined space. [0003] At present, researchers have carried out the effect o...

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Problems solved by technology

At present, gas explosion in confined space is a research hotspot, but the research on gas explosion catastrophe evolution process and disaster prevention technology in confined space is lagging behind, and a series of gas explosion accidents in urban underground confined space in recent years are all related to explosive gas and water storage. Gas Explosion Accidents Occurring in Coexistence Constrained Space

[0003] At present, researchers have carried out the effect of fine water mist in the confined space on the explosion characteristics of combustible gas. However, the municipal sewage space is a comprehensive system where combustible gas and water storage coexist. There are fundamental differences in the water mist in the research, and there is no corresponding test device and method for combustible gas explosions in confined spaces under water storage conditions, which restricts the development of disaster-causing mechanisms and safety protection of gas explosions in urban underground confined spaces. Research

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