核电厂稳压器主喷淋管线漏流计算和缺陷治理

Leakage Calculation and Defect Treatment for Spray System of Nuclear Plant Pressurizer

某核电厂运行期间,稳压器电加热器在正常工况下运行数量偏多,同时稳压器液位、压力、温度等参数均出现异常波动。为进一步查找导致稳压器各项参数异常的原因,对主喷淋管线流量计算和电加热器产生的热功率之间的平衡,从而评价稳压器喷淋管线的泄漏,介绍该分析方法以及主喷淋管线漏流超标的缺陷治理。

During operation of a nuclear power plant, the number of the operating electrical heaters increase, and the temperature, pressure, level for pressurizer become unstable. In order to find out the reason for this phenomenon, we have used the methods that comparing with the spray pipeline leakage calculation and electric heater power, and then evaluated the pressurizer spray pipeline leakage phenomenon. The analysis method and the defect treatment for spray system leakage excess is described.