Experimental device and method for restraining gas explosion flame propagation of branch roadway by composite negative pressure cavity
A technology of gas explosion and negative pressure cavity, applied in the direction of material explosiveness, etc., can solve the problems of poor initiative, easy failure, and poor explosion suppression effect.
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and implementation cases of 90° right-angle bifurcated pipelines.
[0028] A compound negative pressure chamber suppression bifurcation roadway gas explosion experimental device system, composed of experimental pipelines, compound negative pressure chamber, methane-air premixed gas distribution device, ignition device, sensor and data acquisition and measurement device. .
[0029] The methane-air premixed gas configuration device is composed of a methane gas cylinder 1, an air pump 2, and a gas distribution tank 3, and the gas distribution tank 3 is connected with the methane gas cylinder 1, the gas pump 2, and the gas filling hole on the baffle plate 7. The experimental pipeline is composed of a three-way branch pipe 4 and a straight pipe 5, and the straight pipe 5 is connected with the three-way branch pipe 4 and the composite negative pressure chamber 8 through a squar...
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