A pulsed halogen gas detection method and equipment for leak detection of iodine adsorber
A halogen gas, iodine adsorber technology, applied in the direction of measuring the acceleration and deceleration rate of fluid, using liquid/vacuum for liquid tightness measurement, etc., can solve the adverse environmental impact, long time required for detection, halogen gas consumption Large and other problems, to achieve the effect of less environmental pollution, short time and easy operation
Active Publication Date: 2021-06-18
CHINA INST FOR RADIATION PROTECTION
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Problems solved by technology
This continuous halogen gas method takes a long time for each detection, and the amount of halogen gas is relatively large. Frequent use has certain adverse effects on the environment.
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[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0033] A pulsed halogen gas detection method and equipment for leak detection of an iodine adsorber provided by the present invention is used in the ventilation and purification system of a nuclear facility, wherein the detected iodine adsorber 5 is set in the ventilation and purification system of the nuclear facility. In line 11 (see figure 1 ).
[0034] Wherein, a kind of pulse type halogen gas detection method of leak detection of iodine adsorber provided by the present invention comprises the following steps:
[0035] Step S1, injecting halogen gas in pulse mode into the ventilation pipeline upstream of the iodine adsorber in the ventilation and purification system;
[0036] Step S2, while injecting the halogen gas, respectively measure the concentration of the halogen gas in the ventilation pipeline upstream and downstream of the iodine adsorber...
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The invention belongs to the field of nuclear technology, and in particular relates to a pulse-type halogen gas detection method and equipment for leak detection of an iodine adsorber, which is applied in an air purification system of a nuclear facility. The detection method wherein includes (S1) injecting halogen gas in a pulsed manner in the ventilation pipeline upstream of the iodine adsorber; (S2) measuring the upstream and downstream of the iodine adsorber respectively while injecting the halogen gas. The halogen gas concentration in the ventilation pipeline; (S3) comparing the halogen gas concentration in the ventilation pipeline upstream and downstream of the iodine adsorber to obtain the leakage rate of the iodine adsorber. The detection method and equipment of the invention have the characteristics of short test time, less halogen reagent consumption and environmental friendliness.
Description
technical field [0001] The invention belongs to the field of nuclear technology, and in particular relates to a pulse-type halogen gas detection method and equipment for leak detection of an iodine adsorber. Background technique [0002] Iodine adsorber is the core equipment for removing radioactive iodine pollutants in nuclear power plant process exhaust gas and exhaust air. It is an important part of the air purification system of nuclear facilities. It ensures its safe and effective working state. Controlled releases to the environment are critical. [0003] In order to ensure the working status of the iodine adsorber, the relevant standards stipulate that the iodine adsorber should be debugged for performance testing after installation, and field tests for performance testing should be carried out regularly during operation. [0004] The currently used iodine adsorber leak detection method is the continuous halogen gas method, that is, a halogen gas generator is used to...
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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 王坤俊沈大鹏吴波侯建荣王佳张昭辰张群马英吴涛俞杰徐伟祖
Owner CHINA INST FOR RADIATION PROTECTION