摘要
“华龙一号”的蒸汽发生器排污系统(TTB)通过在安全壳内排污管线上增加事故排放管线,实现了在蒸汽发生器传热管破裂事故(SGTR)中调节破损蒸汽发生器的水位和压力,从而实现承担安全功能的要求,但是如何验证事故排放管线的排放能力是调试阶段的难题。本文通过分析蒸汽发生器的结构特性,确定了试验排放过程的液位起点与终点,研究了排放液位差与排放流量的对应关系,在计算得到排放流量后对试验结果进行综合误差分析,最终验证事故排放管线试验结果满足安全准则要求。本文研究的蒸汽发生器排污系统事故排放管线试验为其他核电项目的调试提供了很好的借鉴和指导。
The steam generator blowdown system(TTB)of HPR 1000 achieves the requirement of assuming safety functions by adding the accident discharge line to the blowdown line inside the containment to adjust the water level and pressure of the damaged steam generator in the SGTR accident.But how to verify the discharge capacity of the accident discharge line is a problem in the commissioning stage.The structural characteristics of the steam generator is analyzed in this paper,the starting and ending points of the liquid level in the test discharge process are determined.The corresponding relationship between the discharge liquid level difference and the discharge flow rate is studied,the comprehensive error analysis of the test results is performed after calculating the discharge flow,the test result of the accidental discharge line is finally verified to meet the requirements of the safety guidelines.The accident discharge pipeline test of the steam generator blowdown system studied in this paper has a good reference and guiding significance for the commissioning of other nuclear power plants.
作者
刘飞
LIU Fei(China Nuclear Power Engineering CO.,LTD,Beijing 100084,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2024年第2期487-490,共4页
Nuclear Science and Engineering
