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Open-loop type in-situ measurement method and device for exhalation rate of radon in water body

A technology for in-situ measurement and radon extraction rate, which can be used in testing water, material inspection products, etc., and can solve the problem that in-situ measurement of radon extraction rate cannot be used.

Active Publication Date: 2015-11-18
NANHUA UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of prior art CN104614753A: (1) It can only realize the continuous measurement of radon exhalation rate on the surface of solid medium, and cannot be applied to the in-situ measurement of radon exhalation rate on the surface of radioactive water body

Method used

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  • Open-loop type in-situ measurement method and device for exhalation rate of radon in water body
  • Open-loop type in-situ measurement method and device for exhalation rate of radon in water body
  • Open-loop type in-situ measurement method and device for exhalation rate of radon in water body

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Embodiment Construction

[0038] The invention relates to an open-loop in-situ method and device for measuring the exhalation rate of radon in water bodies. The measurement of radon exhalation rate in radioactive water provides an important basis for rationally formulating radon radiation protection in workplaces containing radioactive water.

[0039] Depend on figure 1 The device for continuous measurement of radon exhalation rate in water based on electrostatic collection method includes six parts: radon measuring instrument, flow meter, air pump, drying pipe, radon collecting hood and water surface bracket. The parts are connected by hoses.

[0040] The specific operation process is as follows:

[0041] Install the radon hood and predetermined length of hose on the attached figure 2 Keep a certain distance between the bottom of the radon collecting hood and the surface of the water body to be tested, and move the bracket to the position to be tested through the water surface;

[0042] Slowly dr...

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Abstract

The invention relates to an open-loop type in-situ measurement method and an open-loop type in-situ measurement device for the exhalation rate of radon in a water body. An open hole which is slightly larger than the diameter of the cross section of a radon collection cover is formed in the center of a water surface bracket of the device, and a screw for fixing the radon collection cover is arranged around the open hole; three buoys which are uniformly distributed into a triangle are arranged at the periphery of the water surface bracket; an air inlet and an air outlet are formed in the top of the radon collection cover; scale lines for measuring the air volume in the radon collection cover is formed in the surface of the radon collection cover. A middle connection piece of the water surface bracket is connected with the radon collection cover, so that the radon collection cover and the water body to be measured can well form a closed space. A measurer can be used for measuring the radon concentrations in the radon collection cover at different moments, and finally the exhalation rate of radon in the water body can be obtained according to a calculating formula of the radon exhalation rate.

Description

Technical field [0001] The present invention involves a method and device for measuring the precipitation rate of the water bodies in situ in situ. Background technique [0002] There are a large number of places and process facilities containing radioactive water bodies in the current entire uranium ore metallurgical production system.In conventional uranium mining, due to the particularity of the mineral body, the water bodies in drainage facilities such as ditch, water warehouses, and pump rooms under the well are analyzed to varying degrees.Among them, the health of the underground operator is endangered.In addition, in the grounding and pile of uranium mining liquid ponds and liquid distribution tanks, as well as the evaporation pool of ground soaking uranium mines, the water body dissolved in the water body with high concentration or freedom 氡 formed by radium decay.When the soaking liquid is pulled out from the pumping hole, a large amount of gaseous gases are brought and ...

Claims

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Application Information

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IPC IPC(8): G01N33/18
Inventor 叶勇军代鑫涛余修武丁德馨雷波谢超李峰
Owner NANHUA UNIV
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