核电厂通风系统碘吸附器效率试验安全性分析

Abstract

Abstract: This paper outlines two methods for the efficiency test of iodine adsorbers in ventilation systems of nuclear power plants: Freon method and radioactive methyl iodide method, and analyzes the implementation way of each method and the advantages and disadvantages under each application process. The safety of the on-site efficiency test for iodine adsorbers is analyzed in detail, and the corresponding preventive and treatment measures are proposed for the unsafe factors, which including the safety related to testing process and safety related to operating conditions, as well as the failure of the iodine removal circuit.

Key words: iodine absorber, Freon, Leakage rate, iodomethane, safety

CLC Number:

TL71

YAO Yanyan, GAO Linfeng, WU Zhenlong, ZHAO Gaoxin. Safety analysis on efficiency test of iodine absorbers in ventilation systems of nuclear power plants[J].RADIATION PROTECTION, 2020, 40(1): 45-51.

References

[1] The American Society of the Mechanical Engineers. Testing of nuclear air-cleaning systems:ASME N510—2007 [S]. 2007.
[2] AFNOR. Nuclear energy, nuclear ventilation installation, method of control of the scrubbing coefficient of iodine traps:NF M62-206[S]. France:AFNOR,1984.
[3] 上海核工程研究设计院. 核空气净化系统的现场检验:EJ/T 791—2014[S].北京:核工业标准化研究所,2014.
[4] 中国辐射防护研究院.核级活性炭去除甲基碘性能试验方法:EJ/T 20056—2014[S].北京:核工业标准化研究所,2014.
[5] 王坤俊,马英,李永国,等.碘吸附器的脉冲式氟利昂法泄漏检测技术实验研究[J].环境科学与管理,2017,42(08):126-130.
WANG Kunjun,MA Ying,LI Yongguo,et al. Experimental study on leak detection method of iodine absorber for pulse injection freon gas[J]. Environmental Science and Management,2017,42(08):126-130.
[6] Kevin R Grot,Richard A Grot, Partrick J Helly. An investigation of alternative tracer gases and calculational methods for measuring leakage in high moisture content gaseous filtration sysrems[C]∥Proceedings of the 34rd Nuclear Air Cleaning Conference. St Louis, MO, June 24,2016.
[7] 梁飞,张计荣,张渊,等.碘吸附器泄漏率检测的方法与影响因素探讨[J].辐射防护,2018,38(06):496-501.
LIANG Fei,ZHANG Jirong,ZHANG Yuan,et al. Study on methods and influence factors of mechanical leakage tests for iodine adsorbers [J]. Radiation Protection,2018,38(06):496-501.
[8] 俞杰,吴振龙,凌学会,等.碘吸附器有效性试验方法及评价[J].核安全,2018,17(02):43-47.
YU Jie,WU Zhenlong,LIN Xuehui,et al. Analysis of test methods for evaluating the availability of iodine adsorber [J]. Nuclear Safety,2018,17(02):43-47.
[9] 俞杰,杜建兴,王龙江,等.环己烷在碘吸附器活性炭床上的解吸行为研究[J].辐射防护,2018,38(03):222-227.
YU Jie,DU Jianxing,WANG Longjiang, et al. Study on desorption behaviour of cyclohexane in activated carbon of iodine adsorber [J]. Radiation Protection,2018,38(03):222-227.
[10] American National Standard. Standard specification for impregnated activated carbon used to remove gaseous radio-iodines from gas streams: ASTM D4069—95 (Reapproved 2014) [S]. American: American Society for Testing and Materials, 2014.
[11] American National Standard. Code on nuclear air and gas treatment: ASME AG-1—2015[S]. American: The American Society of Mechanical Engineers, 2015.
[12] American National Standard. Standard test method for nuclear-grade activated carbon: ASTM D3803—91 (Reapproved 2014) [S]. American: American Society for Testing and Materials, 2014.
[13] 中国核工业集团公司.核空气净化系统碘吸附器净化系数的测定放射性甲基碘法:EJ/T 1183—2005[S].北京:核工业标准化研究所,2005.
[14] 孔海霞,杜建兴,丘丹圭,等.用三甲基氯硅烷/碘化钠制备气态放射性甲基碘的试验研究 [J]. 原子能科学技术, 2013,47 (04):529-535.
KONG Haixia,DU Jianxing,QIU Dangui,et al. Experimental study on preparing gaseous methyl iodide by chlorotrimelthylsilane/sodium iodide [J]. Atomic Energy Science and Technology. 2013,47 (04): 529-535.
[15] 孔海霞,杜建兴,丘丹圭,等. 用非剧毒试剂制备气态放射性甲基碘在碘吸附器检验中的初步应用 [J]. 辐射防护, 2012,32 (04):222-227.
KONG Haixia,DU Jianxing,QIU Dangui,et al. Study on methyl iodide prepared without acute toxicant and its trial application in iodine adsorber test [J]. Radiation Protection, 2012,32 (04): 222-227.
[16] 高琳锋,姚岩岩,王雷,等. 碘同位素交换反应在碘吸附器性能评价应用中的可行性研究[J].辐射防护,2019,39(02):124-129.
GAO Linfeng,YAO Yanyan,WANG Lei,et al. Feasibility study on application of iodine isotope exchange reaction in performance evaluation of iodine adsorbers [J]. Radiation Protection,2019,39(02):124-129.
[17] 高琳锋,姚岩岩,王雷,等. 用放射性甲基碘做示踪剂测量核通风系统除碘效率不同试验方法的比较研究[J].辐射防护,2018,38(02):137-141.
GAO Linfeng,YAO Yanyan,WANG Lei,et al. Comparison of several radioactive methyl iodide methods for iodine removal efficiency test of nuclear ventilation systems [J]. Radiation Protection,2018,38(02):137-141.

Safety analysis on efficiency test of iodine absorbers in ventilation systems of nuclear power plants

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