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Isothermal adsorption device and test method for changing gas density

A gas density, isothermal adsorption technology, applied in the field of experimental equipment, can solve the problems of no isothermal adsorption device that can be used to change the gas density, can not do isothermal adsorption experiments, etc., to achieve the effect of easy promotion, good use effect, and reduce experimental errors

Pending Publication Date: 2019-06-11
GUIZHOU UNIV
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an isothermal adsorption device and test method for changing the gas density, so as to solve the problem that the prior art does not have an isothermal adsorption device that can be used to change the gas density, resulting in the inability to perform isothermal adsorption under different gas density conditions. Experimental and other technical issues

Method used

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  • Isothermal adsorption device and test method for changing gas density

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Embodiment Construction

[0021] see Figure 1-2

[0022] An isothermal adsorption device for changing gas density, which includes: a mixed gas supply system, the mixed gas supply system is connected to the gas mixing device 7 through pipelines; the gas mixing device 7 is connected to the gas density measuring mixing box 11 through pipelines; The gas density measuring mixing box 11 is connected to the gas adsorption system through pipelines; the gas adsorption system is connected to the pressure loading system through pipelines; the gas density measuring mixing box 11 is equipped with a gas density sensor 12, and the gas density sensor is connected to the display through a wire 13 connections.

[0023] The mixed gas supply system includes a first gas storage tank 1 and a second gas storage tank 4; the pipeline connecting the first gas storage tank 1 and the gas mixing device 7 is sequentially installed with a first on-off valve 2 and a first pressure gauge 3 ; The second on-off valve 5 and the second...

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Abstract

The invention discloses an isothermal adsorption device for changing the gas density. The isothermal adsorption device comprises a mixed gas supply system; the mixed gas supply system is connected with a gas mixing device (7) through a pipeline; the gas mixing device (7) is connected with a gas density measuring mixing box (11) through a pipeline; the gas density measuring mixing box (11) is connected with a gas adsorption system through a pipeline; the gas adsorption system is connected with a pressure loading system through a pipeline; the gas density measuring mixing box (11) is internallyprovided with a gas density sensor (12); and the gas density sensor is connected with a display (13) through a wire. The technical problem that isothermal adsorption experiments under different gas density conditions and the like cannot be carried out due to no isothermal adsorption device for changing the gas density in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of experimental instruments, and in particular relates to an isothermal adsorption device and a test method for changing gas density. Background technique [0002] As a large coal producing country, China can easily damage the underground natural environmental conditions during coal mining operations, such as mixing in denser gas to change the original density conditions. Coal seams contain abundant coalbed methane resources, the main component of which is gas. Coal reservoir permeability is one of the important parameters of coalbed methane mining. The relationship between permeability and various conditions has always been concerned by many researchers. Among them, in-situ stress is the main sensitive factor for its change. However, with the depth of coal seam mining As the air density increases, the density of the air brought in also increases. Therefore, the influence of the mixed gas density on the per...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 李波波陈帅张尧王斌高政
Owner GUIZHOU UNIV
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