Tritium water collecting device

A collection device and technology for tritium water, applied in the field of tritiated water collection and impurity removal devices, can solve the problems of large waste, high cost, low treatment efficiency, etc., and achieve the effects of reducing radioactive waste, prolonging life, and improving adsorption efficiency

Inactive Publication Date: 2014-11-26
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the disadvantages of high-radiation tritium gas treatment in the prior art, such as high...

Method used

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Embodiment 1

[0023] figure 1 It is a structural schematic diagram of the tritium water collection device of the present invention, and the tritium water collection device of the present invention includes a vacuum booster pump 1, an air cooling coil 2, a cold trap cooler 3, a molecular sieve absorber 5, and a liquid nitrogen temperature molecular sieve absorber 7 , an impurity removal bed 10, a pipeline, an emptying valve, and a control panel that integrates and controls the above-mentioned parts. The connection relationship is that the vacuum booster pump 1, the air cooling coil 2, the cold trap cooler 3, the molecular sieve absorber 5, the liquid nitrogen temperature molecular sieve absorber 7, and the impurity removal bed 10 are sequentially connected through gas pipelines, and the gas Evacuation valves are respectively arranged on the pipelines; wherein, the cold trap cooler 3 and the molecular sieve absorber 5 are respectively connected to the cold trap 4 equipped with coolant through...

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Abstract

The invention provides a tritium water collecting device. According to the tritium water collecting device, a vacuum booster pump, an air cooling coil, a cold trap cooler, a molecular sieve absorber, a liquid nitrogen temperature molecular sieve absorber, a cleaning bed and a control panel are connected through a pipeline. According to the working procedure, the vacuum booster pump presses tritium gas into the air cooling coil, the tritium gas is cooled into the temperature about 40 DEG C and then enters the cold trap cooler to be cooled, tritium water is absorbed by a molecular sieve, the tritium water is absorbed by the molecular sieve under the liquid nitrogen temperature, and the left tritium gas is exhausted to a tritium purifying system through a blowoff valve. By means of the tritium water collecting device, the service life of an alloy hydrogen absorption bed and a catalytic oxidation bed of the tritium purifying system can be prolonged by about 50 percent, the using efficiency can be improved by more than 50 percent, and the radioactive waste of the produced molecular sieve dry adsorbent can be reduced by more than 80 percent. The tritium water collecting device can be applied to nuclear emergency work of high-radiation tritium gas of nuclear facilities.

Description

technical field [0001] The invention belongs to the field of devices for collecting tritiated water and removing impurities in high-radiation tritium gas in nuclear facilities, and in particular relates to a device for collecting tritium water. Background technique [0002] Because tritium is a toxic radionuclide, there are high-radiation tritium gas, tritiated water and other nuclide impurity gases in many nuclear facilities. The direct discharge of these tritium gas, tritiated water and impurity gases will pollute the environment, and must be collected and purified to meet or lower than the tritium discharge standard to meet the requirements of environmental protection. The current treatment method is direct purification. The purification system mainly adopts material technologies such as catalyst catalytic oxidation, molecular sieve drying, and alloy hydrogen absorption. The first principle is that the tritium in the tritium-containing exhaust gas is converted into tritia...

Claims

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Application Information

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IPC IPC(8): G21F9/02
Inventor 杨勇杜阳余卫国胥全敏蒋树斌成琼马俊格董兰
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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