Detection system and detection method for leakage rate of iodine adsorber

An iodine adsorber and detection system technology, applied in the direction of detecting the appearance of fluid at the leak point, using liquid/vacuum for liquid tightness measurement, etc., can solve problems such as deviation, penetration, and weakening of freon adsorption, etc. Achieve the effect of small detection deviation and less demand

Pending Publication Date: 2019-08-06
CHINA INST FOR RADIATION PROTECTION
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Problems solved by technology

However, because Freon has the effect of destroying the ozone layer, the Freon leak test method is often limited in practice.
In addition, under high humidity, the adsorption of Freon on

Method used

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  • Detection system and detection method for leakage rate of iodine adsorber
  • Detection system and detection method for leakage rate of iodine adsorber

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] Exemplary iodine adsorber leak rate detection system of the present invention is as figure 1 As shown, it includes a tracer injection unit 1 , an iodine adsorber 2 , an exhaust fan 3 , an upstream detector 4 , an enrichment unit 5 , and a downstream detector 6 connected sequentially through pipelines.

[0030] The upstream detector 4 is connected to the connecting pipeline connecting the tracer injection unit 1 and the iodine adsorber 2 for detecting the tracer concentration upstream of the iodine adsorber 2 .

[0031] The enrichment unit 5 is connected to the connecting pipeline connecting the iodine adsorber 2 and the exhaust fan 3, and is used for enriching the tracer (being acetone) downstream of the iodine adsorber 2.

[0032] The downstream detector 5 is connected to the enrichment unit 5 for detecting the tracer con...

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Abstract

The invention, which belongs to the technical field of radioactive waste treatment, relates to a detection system and detection method for the leakage rate of an iodine adsorber. The detection systemcomprises a tracer injection unit, an iodine adsorber, an exhaust fan, an upstream detector and a downstream detector that are connected successively by a pipeline. The upstream detector is connectedto a connecting pipeline connecting the tracer injection unit with the iodine adsorber and is used for detecting the tracer concentration at the upstream of the iodine adsorber. The downstream detector is connected to a connecting pipeline connecting the iodine adsorber with the exhaust fan and is used for detecting the tracer concentration at the downstream of the iodine adsorber. Therefore, theleakage rate of the iodine adsorber can be detected under various humidity environment conditions and the detection deviation is small.

Description

technical field [0001] The invention belongs to the technical field of radioactive waste treatment, and relates to a detection system and a detection method for the leakage rate of an iodine adsorber. Background technique [0002] In nuclear facilities such as nuclear power plants, research reactors, and reprocessing plants, radioactive gases containing radioactive iodine, aerosols, and inert gases will be produced. In order to realize the radiation protection for the occupational personnel, the public and the environment, a ventilation and purification system is installed in the nuclear facility building. On the one hand, it performs radioactive purification treatment on the process gas to avoid the radiation leakage to the environment and endanger the safety of occupational personnel and the public. On the other hand, the air supply is purified to ensure the safety of professionals. [0003] The iodine adsorber is an important equipment used to purify radioactive gaseous ...

Claims

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Application Information

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IPC IPC(8): G01M3/20
CPCG01M3/20
Inventor 梁飞张渊张计荣吴波陈建利王佳张昭辰张群孔海霞韩丽红
Owner CHINA INST FOR RADIATION PROTECTION
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