Temperature change measurement experiment device and method in coal adsorption and desorption process

A temperature change, adsorption and desorption technology, applied in the direction of measuring devices, thermometers, measuring heat, etc., to achieve the effect of improving accuracy and improving the accuracy of measurement

Pending Publication Date: 2021-01-08
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to accurately measure the temperature change value during the coal adsorption and desorption process, the present invention solves the problems of improving the adsorption and desorption

Method used

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  • Temperature change measurement experiment device and method in coal adsorption and desorption process
  • Temperature change measurement experiment device and method in coal adsorption and desorption process

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Embodiment Construction

[0028]Such asfigure 1 As shown, an experimental device for measuring temperature changes in the process of coal adsorption and desorption includes a high-pressure gas cylinder 1, a reference tank 5, and a sample tank 15. The reference tank 5 is connected to the high-pressure gas cylinder 1, the sample tank 15 and the vacuum pump 21, respectively. The pipeline between the bottle 1 and the reference tank 5 is provided with a pressure reducing valve 2 and a No. 1 valve 3, a No. 2 valve 9 is provided between the sample tank 15 and the reference tank 5, and a 5 is provided between the vacuum pump 21 and the reference tank 5. Valve 20 and vacuum gauge 19, reference tank 5, sample tank 15 and vacuum pump 21 are connected by three-way valve 18, reference tank 5 is equipped with No. 1 pressure gauge 7, sample tank 15 passes through No. 3 valve 10 and No. 2 pressure gauge 9 connection, the sample tank 15 is equipped with No. 1 temperature sensor 12, No. 2 temperature sensor 14 and No. 4 tempe...

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Abstract

The invention belongs to the field of coal mine gas outburst disaster prevention and control, and particularly relates to a temperature change measurement experiment device and method in the coal adsorption and desorption process. The device comprises a high-pressure methane gas cylinder, a high-pressure helium gas cylinder, a reference tank and a sample tank, the reference tank is connected withthe high-pressure methane gas cylinder, the sample tank and a vacuum pump, a pressure reducing valve and a first valve are arranged on a pipeline between a high-pressure gas cylinder and the referencetank, a second valve is arranged between the sample tank and the reference tank, and a fifth valve and a vacuum meter are arranged between the vacuum pump and the reference tank; the reference tank,the sample tank and the vacuum pump are connected through a three-way valve, the sample tank is connected with an inlet of the three-way valve, and the reference tank and the vacuum pump are connectedwith an outlet of the three-way valve; the reference tank is provided with a a first pressure gauge, and the sample tank is connected with a second pressure gauge through a third valve. A first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor are connected with a temperature recorder, and the temperature recorder transmits data to a computer.

Description

Technical field[0001]The invention belongs to the field of prevention and control of coal mine gas outburst disasters, in particular to an experimental device and method for measuring temperature changes during coal adsorption and desorption.Background technique[0002]As the mine continues to extend to the depths, gas outburst disasters are becoming more and more serious. A large number of downhole actual conditions and gas outburst simulation experiments have proved that temperature changes will occur before gas outburst. Therefore, many scholars have proposed to use changes in coal body temperature as a predictive indicator of gas outburst. However, at present, the law of temperature change of coal and the mechanism of gas outburst are not yet clear.[0003]The changes in the occurrence state of gas in coal, namely adsorption and desorption, have an important influence on the formation of outbursts. Therefore, in the study of gas outburst, the study of gas adsorption and desorption m...

Claims

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Application Information

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IPC IPC(8): G01N7/04G01K1/022G01L19/00
CPCG01N7/04G01K1/02G01L19/00
Inventor 高涛邓存宝韩青
Owner TAIYUAN UNIV OF TECH
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