核安全
覈安全
핵안전
NUCLEAR SAFETY
2012年
1期
1-9
,共9页
腐蚀产物%钴%银%锑
腐蝕產物%鈷%銀%銻
부식산물%고%은%제
corrosion products%cobalt%silver%antimony
介绍了压水堆核电厂一回路冷却剂中主要活化腐蚀产物钴、银、锑源项的产生和对于停堆机组剂量大幅增加的影响。研究这些核素在反应堆运行和停堆期间的行为并尽早探知这些污染物的出现,以便确定相应的解决办法。它包括:从源头做起,与一回路冷却剂系统接触的设备和部件尽量不采用含有钴、银、锑的材料;制定严格的水化学和停堆程序,使得对这些核素污染的净化能力最佳化和对过度污染最小化;根据具体情况改进净化工艺,限制污染带来的影响。实践证明,这些措施对减少或限制钴、银、锑的污染是行之有效的。
介紹瞭壓水堆覈電廠一迴路冷卻劑中主要活化腐蝕產物鈷、銀、銻源項的產生和對于停堆機組劑量大幅增加的影響。研究這些覈素在反應堆運行和停堆期間的行為併儘早探知這些汙染物的齣現,以便確定相應的解決辦法。它包括:從源頭做起,與一迴路冷卻劑繫統接觸的設備和部件儘量不採用含有鈷、銀、銻的材料;製定嚴格的水化學和停堆程序,使得對這些覈素汙染的淨化能力最佳化和對過度汙染最小化;根據具體情況改進淨化工藝,限製汙染帶來的影響。實踐證明,這些措施對減少或限製鈷、銀、銻的汙染是行之有效的。
개소료압수퇴핵전엄일회로냉각제중주요활화부식산물고、은、제원항적산생화대우정퇴궤조제량대폭증가적영향。연구저사핵소재반응퇴운행화정퇴기간적행위병진조탐지저사오염물적출현,이편학정상응적해결판법。타포괄:종원두주기,여일회로냉각제계통접촉적설비화부건진량불채용함유고、은、제적재료;제정엄격적수화학화정퇴정서,사득대저사핵소오염적정화능력최가화화대과도오염최소화;근거구체정황개진정화공예,한제오염대래적영향。실천증명,저사조시대감소혹한제고、은、제적오염시행지유효적。
The production of the major activated corrosion products such as mony in the primary coolant of PWR power plants and the impacts on the increase by these corrosion products during the shutdown are described in the paper. cobalt, silver and anti- of the dose rates caused Investigating the corrosion product behavior during the operation and shutdown periods aims at detec- ting the appearance of these radiological pollutants in the early time and searching relevant solutions that may enable eventually to decrease the dose rate. The solutions may include: --Replacing critical material in the primary system's with primary coolant circuit to possibly limit the source term; equipments and components, which contact -- Elaborating strictly the specific chemical and shutdown procedure to optimize the purification ca- pacity and to minimize the over-contaminations; -- Improving purification techniques according to the real operation circumstance, and limiting the im- pacts of these pollutants. It is obvious in the re limit the pollutants species al practices that implementing appropriate solution will be benefit to decrease or like cobalt, silver and antimony.