Underground coal mine gas explosion reaction test device

A gas explosion and testing device technology, applied in the direction of material explosion, can solve the problem of inability to accurately and comprehensively simulate gas explosions in underground coal mines

Inactive Publication Date: 2015-03-18
冉骏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the technical defect that the existing technology cannot accurately and comprehensively simulate the gas explosion situation in coal mines, the present invention provides a gas explosion reaction test device in coal mines

Method used

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  • Underground coal mine gas explosion reaction test device

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Embodiment Construction

[0012] A specific embodiment of the present invention is given below.

[0013] The underground gas explosion reaction test device in coal mine comprises a controller, an explosion reaction tank, an explosion gas source connected with the explosion reaction tank, and a compressed air source; the explosion reaction tank has an ignition electrode and a pressure sensor inside, and the ignition electrode and pressure The sensors are all connected with the controller, and a vacuum pump and an air compressor connected with the explosion reaction tank are also included.

[0014] First fill the explosion reaction tank with air and explosive gas in proportion, the controller controls the ignition electrode to achieve ignition, and the explosion pressure is tested by the pressure sensor. Vacuum pumps and air compressors are used to evacuate and pressurize the explosive reaction vessel before and after testing.

[0015] Preferably, a digital pressure gauge connected to the explosive gas...

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Abstract

The invention relates to an underground coal mine gas explosion reaction test device which comprises a controller, an explosion reaction tank, an explosion gas source connected with the explosion reaction tank, and a compressed air source, wherein the explosion reaction tank is internally provided with an ignition electrode and a pressure sensor; the ignition electrode and the pressure sensor are connected with the controller; the device also comprises a vacuum pump and an air compressor which are connected with the explosion reaction tank. After the underground coal mine gas explosion reaction test device is used, the basic parameters such as explosion limit, explosion pressure, explosion pressure rise speed, explosion pressure peak time and the like of underground explosive gas in a macroscopic static state and a turbulence state are simulated, and the influence of turbulence to gas explosion characteristics is analyzed; therefore, a certain guidance is provided for effectively controlling mine gas explosion hazard.

Description

technical field [0001] The invention belongs to the field of coal mine industry and relates to an underground gas explosion reaction test device in a coal mine. Background technique [0002] Underground coal mine gas explosion accidents are one of the most serious mine disasters. In order to prevent and control mine gas explosions, domestic and foreign scholars have conducted a lot of research on the characteristics of gas explosions, and most of the research results are based on gas explosions in a macroscopic static state. However, when a large amount of gas is sprayed or gushed out in coal mines, it is released into the air flow in the shaft, and due to the concentration gradient and wind pulsation, it gradually diffuses and dilutes in the air flow, and is carried by the air flow to flow. Therefore, the study of flowing gas explosion has important practical application value. H. W. Emmons et al. calculated the pipeline outlet pressure of the explosion under quasi-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/54
Inventor 冉骏
Owner 冉骏
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