Container pipeline gas explosion experiment device with concentration gradient and use method

Abstract

The invention relates to a container pipeline gas explosion experiment device with a concentration gradient and a use method. A vacuum pump is started until a first gas concentration restriction space, a second gas concentration restriction space, a third gas concentration restriction space, a fourth gas concentration restriction space and a fifth gas concentration restriction space are under a vacuum state; gradient concentration is subjected to negative pressure proportioning, and combustible gases of different concentrations are proportioned in five gas concentration restriction spaces; anignition experiment is carried out, an upper computer simultaneously controls four sealing devices to simultaneously link the five gas concentration restriction spaces, an ignition instruction is emitted to an ignition device, a PCB (Printed Circuit Board) pressure sensor induces pressure changes, a flame detector detects a flame signal, and monitoring data are transmitted to the upper computer tobe analyzed and processed. By use of the device and the method, the ignition at different positions and the configuration function of combustible gases of different combined concentrations can be realized, so that the explosion transmission mechanism and the explosion evolution dynamic process of the combustible gases with different concentration gradients under different working conditions can be researched.

Description

technical field [0001] The invention provides a container pipeline gas explosion experiment device with a concentration gradient and its use method. The device and method can realize the automatic configuration of combustible gases with different concentrations in multiple areas of the container pipeline system, and implement the gas explosion of the container pipeline system with a concentration gradient. Simulation experiments for kinetic processes and mechanism studies. Background technique [0002] With the rapid development of the economy, flammable gases are widely used in industrial processes, especially in petrochemical production. Combustible gas is usually in a confined space, such as reactors, reactors, storage tanks and other chemical containers or production devices, and these container devices are not isolated, but connected by pipelines. In the process of production, storage, transportation and use of combustible gas, due to human error, defects of containers...

AI Technical Summary

Problems solved by technology

[0003] The commonly used gas explosion devices at home and abroad are 20L spherical explosion vessel and 1 cubic column type explosion vessel. The gas device of the container pipeline system is rare, mainly the connected vessel gas explosion device developed by Nanjing University of Technology, and these devices are all with uniform concentration Combustible gas is the experimental object, and the configuration of combustible gas with concentration gradient cannot be realized

Therefore, there are few reports on the gas explosion experimental device of the container pipeline system with concentration gradient.

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