核电厂燃料包壳破损情况下反应堆停堆过程中水化学监测与控制

摘要

燃料包壳破损情况下反应堆停堆过程水化学监测与控制，对核安全、降低源项、减少人员照射剂量、提高换料大修经济效益有重要意义。本文简述了反应堆停堆过程水化学监测与控制方法，通过宁德核电厂燃料包壳破损情况下，首次大修停堆过程水化学监控的实践效果分析，并对此次反应堆停堆过程中遇到异常现象进行分析，提出了解决的建议。%The water chemistry monitoring and control during the reactor shutdown process with fuel cladding failure is very important for nuclear safety ,source term and personnel dose reduction ,and the economic benefit improvement for refueling outages .This paper describes water chemistry monitoring and control method during the reactor shutdown process .By analyzing the practice effect of the water chemistry control during the first re-actor shutdown process with fuel cladding failure in Ningde NPP ,and investigating the abnormal conditions en-countered ,we proposed a solution .