Tritium gas purified tail gas storage and tinning system

A tritium gas introduction system technology, applied in inorganic chemistry, chemical instruments and methods, non-metallic elements, etc., can solve the problems of high cost and low tritium recovery rate, achieve rapid separation, reduce the risk of tritium leakage, and operate safely Effect

Active Publication Date: 2016-02-24
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

At present, the commonly used tritium gas purification is to use Pd-Ag diffusion membrane for purification. This method is suitable for larg

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  • Tritium gas purified tail gas storage and tinning system

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[0026] The present invention will be further described in conjunction with specific embodiments and the accompanying drawings of the specification.

[0027] A tritium purification system, such as figure 1 Shown. The system includes a tritium gas introduction system, a circulating separation system, and an exhaust gas monitoring system that can be connected or disconnected by valves; the tritium gas introduction system includes a vacuum pump 1, a cold trap 3, a buffer bottle 7, 9, a vacuum gauge 15 and a waiting Purified tritium uranium powder storage bottle 11, among which the to-be-purified tritium uranium powder storage bottle 11 provides tritium gas for the entire purification system. The vacuum pump 1 is connected to the cold trap 3 through a pipe, and the pipe leading from the cold trap 3 is connected to the buffer bottle through a four-way 7, 9. Vacuum gauge 15, the uranium powder bottle 11 to be purified to remove tritium and the circulating separation system are connecte...

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Abstract

The invention belongs to the technical field of gas purification and discloses a tritium gas purification system. The system comprises a tritium gas introduction system which is connected with each other or disconnected via valves, a circulation separation system and a tail gas monitoring system. The tritium gas introduction system comprises a vacuum pump, a cold trap, a buffer bottle, a vacuum gauge and a bottle for storing tritium and uranium to be purified. The circulation separation system comprises two flow-type uranium beds, a tritium-storing uranium bed and a circulating pump, wherein the two flow-type uranium beds and the tritium-storing uranium bed are serially connected through pipelines and are all provided with an electric-heating device. The two flow-type uranium beds respectively adsorbs impurity gas other than tritium gas or helium gas, and stores the tritium gas and releases the tritium gas after storing the tritium gas; the tritium-storing uranium bed stores the released-purified tritium gas and is connected with a tail gas tank of the tail gas monitoring system through pipelines; the tail gas monitoring system comprises the tail gas tank, a tail gas monitoring pressure meter and the circulating pump. The purification system has advantages of almost 100% recovery rate of tritium gas and more than 99% purity of tritium gas.

Description

technical field [0001] The invention belongs to the technical field of gas purification, and in particular relates to a tritium gas purification system. Background technique [0002] Tritium is a radioactive isotope of hydrogen, which has the advantages of low toxicity, high specific activity, and good autoradiography properties. It has been widely used in scientific tracer research, self-luminous light source, tritium target development and other fields. Fusion fuel. Large quantities of tritium are usually stored in the form of metal tritides, especially uranium tritides. [0003] Uranium tritide is recognized as an ideal tritium storage material, mainly due to its low equilibrium decomposition pressure, desorption temperature, large reversible tritium absorption capacity, fast desorption rate, and the ability to effectively avoid tritium High temperature permeation loss and slight tritium aging effect and other advantages. The principle of tritium storage is that metal ...

Claims

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Application Information

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IPC IPC(8): C01B4/00
Inventor 于宁文陈宝军向学琴邓新荣黄伟
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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