秦山320MW机组稳定功率运行反应性控制探讨

Steady state operation of reactivity control discussed

秦山320MW机组反应堆功率运行期间,反应性控制主要来自硼浓度的变化。从核安全的角度看,硼化是偏安全的,但是从核电站的经济效益,功率运行期间误硼化带来的就是降功率;少量的误稀释只会导致控制棒的下插,但是对于核安全却有不利的影响。文章对于误硼化稀释的可能性进行了分析,并对这些情况的预防措施及操作应对进行探讨,建议在实际运行中建立相应的规程来指导操纵员在误稀释或者误硼化之后响应,避免更大的瞬态。

During the reactor power operation,reactivity control of major changes from the boron concentration.From the point of view of nuclear safety,boration is biased,but from the economic benefits of nuclear power plants,during power operation boration excessive is brought down power;small amount of dilution would result control rods inserted,but for nuclear security there is adversely affected.Articles analyzes the possibility of boration excessive or dilution excessive,and discuss the solutions when we meet the situation which was mentioned above.and proposed the establishment of appropriate procedures in the actual operation to guide the operator in the wrong response after boration excessive or dilution excessive,to avoid greater transient.