System for removing trace radon gas in water

A technology for removing water and traces, applied in the direction of degassed water/sewage treatment, radioactive pollutants, etc., can solve problems such as the huge impact of neutrino sequencing, achieve good radon removal effect, easy to use, and meet the requirements of natural radioactivity The effect of bottom concentration requirements

Inactive Publication Date: 2020-08-21
SHANGHAI XINGHENG SCI & TECH
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Problems solved by technology

However, the pure water prepared by the existing process still contains trace amounts of radon, w

Method used

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  • System for removing trace radon gas in water
  • System for removing trace radon gas in water

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” are based on the orientation shown in the drawings Or the positional relationship is only for the conven...

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Abstract

The invention relates to the technical field of water treatment systems, and concretely relates to a system for removing trace radon gas in water. The system comprises a plurality of radon removal units arranged in series, each radon removal unit is used for completing a section of radon removal process, and each radon removal unit comprises a high-purity gas pressurizing unit, a pressure reduction release unit, a gas-liquid separation unit and a degassing unit which are connected in sequence; and each high-purity gas pressurizing unit comprises a pressurizing device, each pressure reduction release unit comprises a decompression device and a stabilizing tank, each gas-liquid separation unit comprises a storage tank, each degassing unit comprises a degassing device, inlets of the degassingdevices are communicated with the storage tanks, an outlet of each degassing device is communicated with a water inlet pipe of the next radon removal unit, and each degassing unit is used for separating bubbles existing in water from dissolved high-purity gas to complete a section of radon removal process. According to the system for removing the trace radon gas in the water, the radon gas radiation activity in the water is reduced to 0.2 Bq/m<3> or below, so that the natural radioactive background concentration requirement of a neutrino mass sequencing experiment is met, and the system is convenient to use.

Description

Technical field [0001] The invention relates to the technical field of water treatment systems, in particular to a system for removing trace amounts of radon gas in water. Background technique [0002] For the background requirements of the central detector of the Neutrino Laboratory, the radioactive radon content in the water must be reduced to 0.2Bq / m 3 , That is, the detection limit of the detector is mBq / m 3 In the order of magnitude, the traditional vacuum degassing and membrane degassing can only remove the dissolved gas in water to ppm or ppb level, and it is powerless for the removal target of ppt and ppq level. [0003] Particle physics is one of the most important frontier scientific fields in recent years. Among them, neutrino research is the focus of the international particle physics field. It is also the only direction that has obtained experimental evidence beyond the standard model of particle physics and can achieve major breakthroughs. , Is the intersection of par...

Claims

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Application Information

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IPC IPC(8): C02F1/20
CPCC02F1/20C02F2101/006
Inventor 王培徐美倩
Owner SHANGHAI XINGHENG SCI & TECH
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