Combustible gas explosion limit test system in non-standard state

Abstract

The invention provides a combustible gas explosion limit test system in a non-standard state, which is characterized by comprising a gas distribution device, an explosion device, a temperature control device and a data acquisition processing device. The explosion device comprises an anti-explosion tank and a heat preservation jacket; a heating element is arranged between the anti-explosion tank and the heat preservation jacket; a partition board is arranged in the anti-explosion tank and partitions the inner cavity of the anti-explosion tank into a gas buffer chamber and a gas explosion chamber; a solenoid valve communicating the gas buffer chamber with gas explosion chamber is arranged on the partition board; an input opening of the explosion device is communicated with the gas buffer chamber and in bypass connection with a vacuum pump; a buffer pressure sensor and a buffer temperature sensor are arranged in the gas buffer chamber; and an unexploded temperature sensor, an unexploded pressure sensor, an igniter and an explosion pressure sensor for the explosion test are arranged in the gas buffer chamber. The invention has the advantages of simple structure and good operability, and solves the difficulty of detecting the combustible gas explosion characteristics in the non-standard state, such as high temperature, high pressure and the like.

Description

technical field [0001] The invention relates to a safety test device, especially a test device for the explosion limit value of combustible gas under non-standard conditions where the gas in a sealed container is at high temperature and high pressure or normal temperature and high pressure, specifically a combustible gas in a non-standard state Explosive limit test system. Background technique [0002] At present, in the process of chemical and petrochemical production, flammable gases are usually stored or transported in closed containers or pipelines. Due to the confinement, the gas explosion will produce high pressure and pressure rise rate, so as to cause casualties and property damage. Combustible substances (combustible gas, steam and dust) and air (or oxygen) must be uniformly mixed within a certain concentration range to form a premixed gas, which will explode when it encounters a fire source. This concentration range is called the explosion limit, or explosion Con...

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Problems solved by technology

[0004] The purpose of the present invention is to design a non-standard deflagration test that can be used for high temperature and high pressure or normal temperature and high pressure in view of the problem that the existing combustible gas deflagration tests are carried out under normal pressure conditions, and the measured values ​​cannot accurately reflect the actual working conditions of combustible gas. Combustible gas explosion limit test system under state

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