M310机组二回路取样地坑泵（RPE029PO）启动对热平衡的影响分析

摘要

核电厂热平衡测量是通过二回路热功率计算来确定电厂热功率的一种方法。由于其仪表精度高，工作环境较堆芯好等原因，通常作为电厂的基准功率的测量方法，用来校准堆芯的功率显示，故其结果是否准确对堆芯功率测量有着重要的影响。M310机组二回路取样地坑泵(RPE029PO）启动后会对热平衡结果产生影响，通过对比RPE029PO启动前后及启动过程中的数据，发现RPE029PO启动期间热平衡试验结果较正常热平衡试验计算的热功率低约5 MW。核电厂热平衡测量是一种通过测量二回路热功率来确定电厂堆芯热功率的一种精密测量方法，通常作为电厂基准功率的测量方法用以校准堆芯功率显示，故其结果的准确与否直接影响堆芯的功率测量。M310机组RPE029PO启动后会对热平衡结果产生影响，造成堆芯功率测量不准。通过对比其启动前后及启动过程中的数据，确定其对堆芯功率的影响程度，确保堆芯功率测量的准确性。%Nuclear power plant thermal balance measurement by performing the secondary loop thermal power calculations to determine the thermal power of plant, due to its high precision instruments, and good working environment than the core, usually as the reference power of plant, used to calibrate the core of the power display, which exactly have an important impact results. Fuqing nuclear power plant RPE029PO affect thermal balance results after starting, by comparing the data in the process of before and after starting RPE029PO,which found during the starting of RPE029PO the thermal balance test results of the thermal power was lower 5MW than a normal thermal balance test calculation.