核空气净化系统碘吸附器性能的综合评价方法研究

Research on an Integrated Evaluation Method for the Performance of Iodine Adsorber in Nuclear Air Cleaning System

缩短特定场所核空气净化系统由于碘吸附器现场性能评价试验导致的系统不可用时间。采用实验室放射性甲基碘试验、碘吸附器离线泄漏率检测与排架泄漏率检测相结合的方法,综合评价系统碘吸附器性能。综合评价方法可缩短由于该项试验导致的核空气净化系统不可用时间,同时可应用于不便采用放射性甲基碘法和/或无法取得代表性吸附介质进行实验室除碘效率测试的核空气净化系统的碘吸附器性能评价。对于某些特定核空气净化系统的碘吸附器性能评价,该方法可推广应用。

Objective To shorten the unavailable time of nuclear air cleaning systems due to iodine adsorber field performance in specific sites. Methods The performance of iodine absorber in the system was determined by the combination of radioactive methyl iodine test,off-line leakage rate test and in-situ bank leakage rate test. Results The unavailable time of nuclear air cleaning system is shortened by the above integrated evaluation method,and this method can be applied to the performance evaluation of iodine adsorber in nuclear air purification system where radioactive methyl iodine method is inconvenient and/or representative adsorption media cannot be obtained for laboratory iodine removal efficiency test. Conclusion The above integrated method can be applied to some special nuclear air cleaning systems for their performance evaluation.