Ultralow temperature combustible gas explosion minimum ignition energy testing system and method

Abstract

The invention relates to an ultralow temperature combustible gas explosion minimum ignition energy testing system and method. The testing system comprises a vacuumizing system, a gas distribution system, a refrigerating system, an integral circuit ignition system and a data acquiring system; an explosion container is installed in the refrigerating system, the vacuumizing system is connected with the explosion container through a connection pipeline of the gas distribution system, the gas distribution system is communicated with the inside of the explosion container through the connection pipeline thereof; the integral circuit ignition system comprises an ignition energy test table, an ignition electrode in the explosion container, a high pressure probe and a current transformer; the ignition energy test table is connected with the ignition electrode, the high pressure probe and the current transformer are respectively connected with the ignition energy test table and the ignition electrode; and the data acquiring system comprises a data acquirer, a pressure sensor and a temperature sensor which are respectively connected with the data acquirer and installed in the explosion container. The testing system disclosed by the invention is high in safety performance, precise in testing performance, and capable of precisely testing the minimum ignition energy of the combustible gas explosion under ultralow temperature and high pressure, the tested data have important significance for guiding the safety production of the oxygen-containing coal bed gas liquefication process.

Description

technical field [0001] The invention belongs to the technical field of industrial production safety, and in particular relates to a test system and method for researching the minimum ignition energy characteristics of combustible gas explosions in an ultra-low temperature environment. Background technique [0002] The deoxidation of coalbed methane is a technical problem at home and abroad. At present, the main deoxygenation technologies include adsorption method, membrane separation method, combustion deoxygenation method and low temperature separation method. Among them, the low-temperature separation method removes impurities completely and the product has high purity, so it is a more commonly used method. Existing research results show that the most dangerous part of the whole coalbed methane low temperature working condition is the fractionation stage (temperature -160~-170℃, pressure 0.1~0.3MPa), especially at the top of the fractionation tower, where the methane conc...

AI Technical Summary

Problems solved by technology

[0010] And the existing disclosed technology does not relate to the test method of the minimum ignition energy of combustible gas explosion under ultra-low temperature

Images