Triaxial seepage device capable of changing pH values of mixed gas and operation method

A technology of mixed gas and pH, applied in the field of seepage, can solve the problem of no change in pH of mixed gas, and achieve the effects of easy promotion, prevention of intrusion, and prevention of 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 a triaxial seepage device capable of changing the pH of the mixed gas and its operating method, so as to solve the problem that the existing technology does not have a triaxial seepage device capable of changing the pH of the mixed gas to simulate the pH of the mixed gas at the mining site. technical issues such as changes

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  • Triaxial seepage device capable of changing pH values of mixed gas and operation method

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Embodiment Construction

[0022] 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, not all, embodiments of the present invention. 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.

[0023] see Figure 1-2

[0024] A triaxial percolation device capable of changing the pH of mixed gas, which includes a mixed gas supply system, the mixed gas supply system is connected to the gas mixing system through pipelines; the gas mixing system is connected to the triaxial pressure system through pipelines; the triaxial pressure system It is connected with the vacuum degassing system through a pipeline; the vacuum degassing system is connected with the...

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Abstract

The invention discloses a triaxial seepage device capable of changing pH values of mixed gas and an operation method. The device comprises a mixed gas supply system, wherein the mixed gas supply system is connected with a gas mixing system through a pipeline; the gas mixing system is connected with a triaxial pressure system through a pipeline; the triaxial pressure system is connected with the vacuum degassing system through a pipeline; the vacuum degassing system is connected with a flow measuring system through a pipeline; the gas mixing system comprises a gas mixing cavity (14); a PH sensor is mounted in the gas mixing cavity (14); and the PH sensor (30) is connected with a PH measuring device (13) through a lead. The device is capable of solving the technical problem that triaxial seepage devices capable of changing pH values of mixed gas do not exist in the prior art to simulate changes of the PH values of mixed gas in coal mining fields.

Description

technical field [0001] The invention belongs to the technical field of percolation, and in particular relates to a triaxial percolation device capable of changing the pH of mixed gas and an operation method. Background technique [0002] my country's abundant coal resources, under complex reservoir conditions, the gas in the gas seepage channel has different pH. In the coal seam gas migration process, the permeability is one of the important parameters reflecting the difficulty of gas seepage in the coal seam, and at the same time, the permeability is also a key research direction of gas seepage mechanics and engineering. Therefore, the research on the calculation method of coal seam gas permeability is very important to the development of gas seepage mechanics. At the same time, a series of mine safety problems such as coal and gas outburst need to be solved urgently. And gas is a kind of CH 4 , CO 2 and SO 2 It is of great significance to study the influence of the pH ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
Inventor 李波波李建华许石青
Owner GUIZHOU UNIV
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