Tritium water collecting device

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...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of high-radiation tritium gas treatment in the prior art, such as high waste generation, low treatment efficiency and high cost, the present invention provides a tritium water collection device

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