Testing device for simulating permeability of deep coal bed gas

Abstract

The invention relates to the technical field of simulated coal bed gas permeability experiments, in particular to a testing device for simulating the permeability of deep coal bed gas, which comprises a main body mechanism, a driving mechanism is mounted on the main body mechanism, a blanking mechanism is mounted on the driving mechanism, a rolling mechanism is mounted on the blanking mechanism. A sealing mechanism is arranged on the main body mechanism, and an air inlet mechanism is mounted on the main body mechanism; the driving mechanism is installed on the main body mechanism, the blanking mechanism is installed on the driving mechanism, when sandy soil is added into the main body mechanism, the discharging mechanism can be opened, the driving mechanism is pushed to achieve uniform blanking, and when the blanking mechanism moves, the angle of the rolling mechanism can be adjusted to extrude the sandy soil in the main body mechanism, so that sandy soil experiments with different tightness are realized, and the operation is simple; the sealing mechanism is installed on the main body mechanism, the sealing mechanism protects sandy soil during an experiment, and after the experiment is finished, the sealing mechanism can be opened to clean the sandy soil in the main body mechanism, so that blanking is facilitated.

Description

technical field [0001] The invention relates to the technical field of simulating coal bed gas permeability experiments, in particular to a test device for simulating deep coal bed gas permeability. Background technique [0002] Coalbed methane is a gas resource that is associated and symbiotic with coal. It refers to the hydrocarbon gas stored in the coal seam, with methane as the main component, and belongs to unconventional natural gas. A simulated deep coal seam Gas permeability test device. [0003] However, the current test device for simulating the permeability of deep coalbed methane needs to manually add sand to the inside of the container when adding sand. When pressing, it is also pressed with a tool such as a shovel. It is difficult to spread sand evenly and press the sand, which affects the accuracy of the CBM experiment. In addition, the air inlet pipe is directly inserted into the container and inside the sand without fixing it. When cleaning the sand, the ai...

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Problems solved by technology

[0003] However, the current test device for simulating the permeability of deep coalbed methane needs to manually add sand to the inside of the container when adding sand. When pressing, it is also pressed with a tool such as a shovel. It is difficult to spread sand evenly and press the sand, which affects the accuracy of the CBM experiment. In addition, the air intake pipe is directly inserted into the container and inside the sand without fixing it. When cleaning the sand, the air intake pipe It is easy to rotate, and the pipeline needs to be adjusted again when the experiment is repeated, which is cumbersome to operate

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