Experimental device and method for simulating gas explosion in underground coal mine turning roadway

A technology of gas explosion and experimental device, applied in the direction of measuring device, material explosiveness, instrument, etc., can solve the problem that the bending pipeline is rarely involved, and achieve the effect of avoiding low accuracy

Pending Publication Date: 2021-09-07
LIAONING TECHNICAL UNIVERSITY
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  • Description
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Problems solved by technology

At present, most of the existing experimental pipeline types are straight and bifurcated pipelines, but the curved pipeline is rarely involved, especially the angle-adjustable experimental pipeline type

Method used

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  • Experimental device and method for simulating gas explosion in underground coal mine turning roadway
  • Experimental device and method for simulating gas explosion in underground coal mine turning roadway
  • Experimental device and method for simulating gas explosion in underground coal mine turning roadway

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Such as figure 1 As shown, an experimental device for simulating a gas explosion in an underground turning roadway of a coal mine includes an explosion tank 17, a pipeline, an ignition device and a data acquisition device. The attachments of the explosion tank 17 include a gas cylinder 9, a vacuum pump 10, a gas concentration detector 5, a vent valve 2, a safety valve 3, an electromagnetic stirrer 1, a safety linkage monitoring device 4 an...

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Abstract

The invention belongs to the technical field of coal mine safety engineering, and particularly provides an experimental device and method for simulating gas explosion in an underground coal mine turning roadway. The experimental device comprises an explosion tank, a pipeline, an ignition device and a data acquisition device, wherein the explosion tank is an explosion generation tank body, an explosion tank accessory device comprises a gas cylinder, a vacuum pump, a gas concentration detector, an emptying valve, a safety valve, an electromagnetic stirrer, a safety linkage monitoring device and a film piece, the pipeline is a gas explosion propagation pipeline and is formed by combining pipeline sections with different turning angles, the ignition device comprises an ignition electrode needle and a control box and is used for igniting to trigger explosion in the explosion tank, and the data acquisition device comprises a pressure sensor, a temperature sensor and a data acquisition computer and is used for recording the pressure and the temperature at each monitoring point in the pipeline in real time. According to the experimental device and method, the defects of an existing gas explosion experiment device in the aspect of simulating different turning roadways are overcome, and the device and the method have great significance on coal mine gas explosion prevention and safety production.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety engineering, and in particular relates to an experimental device and method for simulating gas explosion in an underground turning roadway of a coal mine. Background technique [0002] Gas explosion is one of the most serious disasters in mines. Once a gas explosion occurs in a coal mine, it often causes a large number of casualties, accompanied by huge economic losses and adverse social impacts. The propagation mechanism and law of gas explosions in coal mine underground tunnels are still the key research topics of scholars today. Turning-shaped tunnels with different angles and sizes are common tunnel types in coal mines. Studying the propagation characteristics and laws of gas explosions in curved tunnels has a significant The prevention and control of coal mine gas explosion has a guiding role and is of great significance to ensure the safety of coal mine production. [0003] Numeric...

Claims

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Application Information

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IPC IPC(8): G01N25/54G01D21/02
CPCG01N25/54G01D21/02
Inventor 刘学刘剑周启超
Owner LIAONING TECHNICAL UNIVERSITY
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