Device for measuring rock released radon under uniaxial pressure experiment

A uniaxial pressure and measuring device technology, which is applied in measuring devices, radiation measurement, X-ray energy spectrum distribution measurement, etc., to achieve the effect of small size, fast action time and good performance

Inactive Publication Date: 2019-08-02
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no measuring device for instantaneous radon precipitation changes in the process of rock compression in China.

Method used

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  • Device for measuring rock released radon under uniaxial pressure experiment
  • Device for measuring rock released radon under uniaxial pressure experiment

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Experimental program
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the present invention is a kind of rock release radon measuring device under uniaxial pressure experiment, comprises press machine, and press machine carries out compression release gas sample to the rock sample in pressure chamber 3 through pressure rod 2, and pressure chamber 3 is connected with inlet through pipeline. The gas switch 1 is connected, and the lower side of the pressure chamber 3 is connected with the first switch 4 through a pipe, and the gas passes through the first switch 4 and the silica gel drying tube 5 in sequence and then enters the radon chamber 6, and the radon chamber 6 is provided with a gold silicon surface Barrier type semiconductor detector 7, the outlet of radon gas chamber 6 is connected with the second switch 8, and the side of second switch 8 away from radon gas chamber 6 is connected with the inlet o...

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Abstract

The invention discloses a device for measuring rock released radon under a uniaxial pressure experiment, and belongs to the technical field of gas measurement. The rock released radon measuring devicewith small environmental pollution and high measuring precision is provided. According to the technical scheme, the device for measuring the rock released radon under the uniaxial pressure experimentcomprises a pressure machine; the pressure machine is used for compressing a rock sample in a pressure chamber through a pressure rod to release a gas sample; the pressure chamber is connected with agas inlet switch through a pipeline; the lower side of the pressure chamber is connected with a first switch through a pipeline; gas enters a radon gas chamber through the first switch and a silica gel drying tube sequentially; a gold-silicon barrier type semiconductor detector is arranged in the radon gas chamber; an outlet of the radon gas chamber is connected with a second switch; one side, far away from the radon gas chamber, of the second switch communicates with an inlet of a filter; an outlet of the filter communicates with a gas collecting bottle; the silica gel drying tube is used for filtering dust and water vapor in the gas sample; and the filter is used for removing a daughter of radon possibly existing in the gas sample.

Description

technical field [0001] The invention relates to a measuring device for radon released from rocks under a uniaxial pressure experiment, which belongs to the technical field of gas measurement. Background technique [0002] Radon is the only natural radioactive gas element in nature and is radioactive. Radon is easily soluble in water in nature and can be adsorbed on solid surfaces such as rubber, paraffin, plastic, metal and activated carbon. Radon is ubiquitous, because radium will continuously produce radon gas (emanation), which mostly exists in the underground soil, and part of the emanation can enter the rock void. When the rock structure is loose, the porosity is large, the temperature increases, the humidity decreases, and the emanation of radon increases. Radon and its progeny are the main α radiators in natural α radioactive elements, and α energy spectrum measurement is the main technical means to realize the measurement of radon activity concentration. Detectors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/36
CPCG01T1/366
Inventor 张新军张浩宇
Owner TAIYUAN UNIV OF TECH
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