Premixed combustible gas explosion flame propagation velocity research device and method
A technology of flame propagation speed and gas explosion, applied in the field of gas explosion characteristics research
Pending Publication Date: 2021-05-18
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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Problems solved by technology
At present, there is no measurement device and method for the explosion propagation velocity of premixed combustible gas. In the case that it is difficult to measure it, the numerical simulation calculation and prediction of the flame propagation velocity of premixed combustible gas explosion in pipelines with different lengths is carried out.
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[0070] 1. Experiment preparation and steps:
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Abstract
The invention discloses a premixed combustible gas explosion flame propagation velocity research device and method. The premixed combustible gas explosion flame propagation velocity research device comprises a premixed combustible gas explosion pipeline, a detonation velocity instrument, a combustible gas steel cylinder and an ignition system, wherein the premixed combustible gas explosion pipeline is a closed lightproof pipeline, and one end of the premixed combustible gas explosion pipeline is provided with a pressure gauge; the ignition system comprises an ignition electrode, and the ignition electrode is arranged at one end of the premixed combustible gas explosion pipeline; the detonation velocity instrument comprises a plurality of optical fiber sensors, and each optical fiber sensor is arranged on one side of the premixed combustible gas explosion pipeline through a fixed regulator; and the side wall of the premixed combustible gas explosion pipeline is connected with a gas outlet valve, a gas inlet valve, a circulating pump and a combustible gas steel cylinder. The flame propagation velocity measurement research can be carried out on premixed combustible gas explosion, the relationship between the flame propagation velocity of premixed combustible gas explosion and the pipeline length can be fitted, and the device has important significance for explaining the premixed combustible gas explosion characteristics and seeking a new technology for inhibiting gas explosion.
Description
technical field [0001] The patent of the present invention relates to a gas explosion characteristic research technology and device, in particular to a premixed combustible gas explosion flame propagation velocity research device and method, which can numerically measure the premixed combustible gas explosion flame propagation velocity when it is difficult to actually measure Analog computing. Background technique [0002] With the development of modern industry, the production process is becoming more and more complex, and the level of production intensification is getting higher and higher. The danger of industrial explosions is also increasing. The frequency of gas explosions is very high, and the losses caused are also the largest. Combustible gas explosion velocity, pressure and temperature are three important characteristics of combustible gas explosion. Strengthening the research on basic data of combustible gas explosion is of great significance to the study of combu...
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IPC IPC(8): G01N33/22
CPCG01N33/225
Inventor 高建村杨喜港胡守涛王乐洪子金孙谞夏艺萌张烨
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY