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Coal rock adsorption deformation and porosity synchronous measurement device and method

A measuring device and porosity technology, which is applied in the field of coal rock adsorption deformation and porosity simultaneous measurement device, can solve the problem that coal sample adsorption deformation and porosity cannot be measured simultaneously

Active Publication Date: 2017-09-26
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Abstract
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Problems solved by technology

[0004] In view of this, the present invention provides a device and method for synchronously measuring adsorption deformation and porosity of coal samples in order to solve the problem that coal sample adsorption deformation and porosity cannot be measured simultaneously in the process of measuring the amount of gas absorbed by coal rock

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  • Coal rock adsorption deformation and porosity synchronous measurement device and method
  • Coal rock adsorption deformation and porosity synchronous measurement device and method
  • Coal rock adsorption deformation and porosity synchronous measurement device and method

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Embodiment Construction

[0047] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] The reference signs in the accompanying drawings of the specification include:

[0049] First mass flow meter 1, degassing control valve 2, vacuum piping system 3, strain sensor 4, first solid gas pressure sensor 5, vacuum degassing pump 6, X-ray source 7, standard tank 8, rotating platform 9, radiation detector 10. Adsorption tank 11, wire 12, vacuum thermocouple meter 13, constant temperature air bath 14, first control valve 15, second control valve 16, gas pressure reducing valve 17, second mass flow meter 18, second solid gas pressure Sensor 19, high-pressure gas cylinder 20, multi-channel signal conditioner 21, data acquisition and analysis system 22, flow control valve 23.

[0050] Such as figure 1 The coal-rock adsorption deformation and porosity synchronous measuring device shown includes an adsorption tank 11, a multi-chan...

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Abstract

The invention belongs to the technical field of safety in coal mines and relates to a coal rock adsorption deformation and porosity synchronous measurement device and a coal rock adsorption deformation and porosity synchronous measurement method. A strain sensor and a first solidified gas pressure sensor at the upper end of an adsorption tank are connected onto a multipath signal conditioner through a wire, a gas reducing valve and a second solidified gas pressure sensor are fixedly installed on a high pressure gas cylinder, the second solidified gas pressure sensor is connected onto the multipath signal conditioner through a wire, a pipeline on the high pressure gas cylinder is connected with a standard cylinder, a second mass flowmeter is installed on the pipeline, a rotating platform is installed below the adsorption tank, an X-ray source and a ray detector that are right opposite to the adsorption tank are fixedly installed in a constant temperature air bath installed outside the adsorption tank, a data acquisition and analysis system is installed on the ray detector, a first mass flowmeter and a vacuum degassing pump are connected onto a pipeline on the adsorption tank, a degassing control valve and a vacuum thermocouple meter are fixedly installed on the vacuum degassing pump, and the problem that the adsorption deformation and the porosity of a coal sample cannot be measured synchronously in the process of measurement of the adsorbed gas flow of the coal rock is solved.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety, and relates to a device and method for synchronously measuring adsorption deformation and porosity of coal rocks. Background technique [0002] Coal mine gas (also known as "coalbed methane") is an unconventional natural gas that exists in the coal seam and its surrounding rocks, exists in an adsorbed or free state, and mainly consists of methane. my country is rich in coalbed methane resources. According to a new round of resource evaluation, my country's coalbed methane resources at depths below 2,000 meters are about 36.81 trillion cubic meters, equivalent to 49 billion tons of standard coal, ranking third in the world. However, the reality that cannot be ignored in the current development of my country's coalbed methane development industry is that the gas production of a single coalbed methane well is too low, the economic benefits are low, and the industry is facing difficulties. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N7/04G01N7/10G01N15/08G01B7/16
CPCG01B7/18G01N7/04G01N7/10G01N15/088
Inventor 程波邹银辉张志刚向衍斌李文哲李大勇程建圣孙炳兴张林良王建龚选平冀超辉杜文波黄光利刘俊
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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