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A Gas Emission Simulation System Used in Physical Similarity Simulation Experiments

A technology of physical similarity simulation and gas gushing, which is applied in the field of coal seam mining experimental devices, can solve problems such as the difficulty in realizing gas gushing, and achieve the effect of solving the problem of coal seam mining.

Inactive Publication Date: 2018-04-24
XIAN UNIV OF SCI & TECH
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  • Claims
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Problems solved by technology

At present, in order to study the migration and enrichment law of coal seam mining gas in the overlying rock fractures, many scholars use the physical similarity simulation experiment as an effective method. is still difficult to achieve, so it is necessary to develop a device that can simulate gas gushing

Method used

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  • A Gas Emission Simulation System Used in Physical Similarity Simulation Experiments

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Embodiment Construction

[0013] 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.

[0014] figure 1 It exemplarily shows a schematic diagram of a gas gushing simulation system used in a physical similar simulation experiment provided by an embodiment of the present invention. A gas gushing simulation system used in a physically similar simulation experiment provided by an embodiment of the present invention includes a gas injection mechanism and a gas dissipation simulation mechanism;

[0015] Such as figure 1 As shown, the gas injection me...

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Abstract

The invention discloses a gas gushing simulating system used in physics resemble simulation experiments. The system comprises a gas injection mechanism and a gas dissipation simulating mechanism. The gas injection mechanism comprises a gas cylinder cabinet, a gas cylinder, a gas reducing valve, a master gas pipeline, a gas injection control cabinet, branch gas mass flow meters, a fine tuning knob, a gas buffer tank, a digital display pressure gage, a master gas mass flow meter, a data transmission line and a computer. The gas dissipation simulating mechanism comprises a branch pipeline, a mining steel bar, an experiment box, a base and mining hydraulic cylinders. The gas gushing simulating system used in physics resemble simulation experiments can be used for simulating the gushing rule of gas under the coal mining condition and brings convenience to research on gas migration and gas extraction in overlying strata under the influence of mining moves.

Description

technical field [0001] The invention relates to the technical field of coal seam mining experimental devices, in particular to a gas gushing simulation system used in physical similar simulation experiments. Background technique [0002] my country is the world's largest coal-producing country, with coal output accounting for 48.3% of the world's total. At the same time, coal is my country's main energy source, accounting for 76% and 69% of the total primary energy production and consumption respectively. The safe co-mining of coal and gas is a major topic of scientific research today. The large-scale mining of coal has made the depth of coal seam mining continuously deepened, and the gas pressure in the coal seam has increased sharply, resulting in a sharp increase in the amount of gas gushing out of the working face, serious gas dynamic phenomena appear frequently, and even gas combustion, explosion, and coal and gas outbursts Such vicious accidents seriously threaten the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F7/00E21B47/06E21B47/00
CPCE21B47/00E21B47/06E21F7/00
Inventor 林海飞魏宗勇李树刚潘红宇赵鹏翔肖鹏丁洋李莉成连华刘超严敏张超
Owner XIAN UNIV OF SCI & TECH
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