压水堆一回路抽真空排气造成压力温度超值的研究
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摘要
压水堆核电厂一回路启动过程通过抽真空排气,可以缩短排气时间,减少主泵启动次数。但是一回路抽真空使一回路的绝对压力降到一个大气压以下,会造成压力温度超值运行事件。本文根据已有电厂的经验反馈,建议相关电厂对压力温度的限值进行修订,并指出注意事项。
In the starting process of primary circuit of PWR nuclear power plant, exhaust time and main pump start times can be shortened by vacuuming. However, if the absolute pressure of the primary circuit is reduced to less than one atmosphere due to the vacuum pumping of the primary circuit, pressure and temperature overvalue operation events will be caused. Based on the feedbacks of existing power plants, this paper suggests that relevant power plants revise the limit value of pressure and temperature, and points out matters needing attention.
In the starting process of primary circuit of PWR nuclear power plant, exhaust time and main pump start times can be shortened by vacuuming. However, if the absolute pressure of the primary circuit is reduced to less than one atmosphere due to the vacuum pumping of the primary circuit, pressure and temperature overvalue operation events will be caused. Based on the feedbacks of existing power plants, this paper suggests that relevant power plants revise the limit value of pressure and temperature, and points out matters needing attention.
引文
[1]谭海波,赵鑫,杨森垓,等.压水堆核电机组一回路抽真空排气技术[J].核动力工程,2014,35(3):88-91.
[2]王昌科.AP1000电站抽真空启动运行的特点分析[C]//中国核学会.第七届中国核学会“三核”论坛中国放射医学教育五十年暨中国毒理学会放射毒理委员会第八次全国会议论文集.北京:中国核学会,2010:72-75.
[3]黎春梅,罗明坤,李书周,等.岭澳核电站一回路系统真空排气台架设计[J].核动力工程,2010,31(2):94-97.
[4]秦余新,向文元,董亚超,等.压水堆核电厂一回路抽真空排气方法和装置研究[J].核动力工程,2014,35(S1):206-210.
[5] U. S. NRC. NO. 2472014001R00 Technical Specification(TS)Prohibited Condition Due to Failure to Comply with TS 3.4.3Reactor Coolant System Pressure-Temperature Limits During Vacuum Refill[S].U.S.NRC:Washington,DC,2014.
[6] U.S.NRC.NO.2752014001R00 Technical Specification 3.4.3 Reactor Coolant System Pressure Limit Violation During Vacuum Refill Due to Human Error[S]. U. S. NRC:Washington,DC,2014.
[7]杨晓强,叶刘锁,李载鹏,等.田湾核电站3号机组反应堆首次无源启动[J].核安全,2018,17(5):7-13.
[8]穆海洋,宋雨,管运全.田湾核电站反应堆保护系统多样化的研究[J].核安全,2018,17(3):17-21.
[9]吴耀,李莉,毛常磊,等.反应堆卸料燃料组件吊运跌落事故辐射安全分析[J].核安全,2018,17(3):47-51.
[10]彭志珍.18个月换料对CPR1000反应堆压力容器辐照监督的影响[J].核安全,2018,17(3):22-27.
[2]王昌科.AP1000电站抽真空启动运行的特点分析[C]//中国核学会.第七届中国核学会“三核”论坛中国放射医学教育五十年暨中国毒理学会放射毒理委员会第八次全国会议论文集.北京:中国核学会,2010:72-75.
[3]黎春梅,罗明坤,李书周,等.岭澳核电站一回路系统真空排气台架设计[J].核动力工程,2010,31(2):94-97.
[4]秦余新,向文元,董亚超,等.压水堆核电厂一回路抽真空排气方法和装置研究[J].核动力工程,2014,35(S1):206-210.
[5] U. S. NRC. NO. 2472014001R00 Technical Specification(TS)Prohibited Condition Due to Failure to Comply with TS 3.4.3Reactor Coolant System Pressure-Temperature Limits During Vacuum Refill[S].U.S.NRC:Washington,DC,2014.
[6] U.S.NRC.NO.2752014001R00 Technical Specification 3.4.3 Reactor Coolant System Pressure Limit Violation During Vacuum Refill Due to Human Error[S]. U. S. NRC:Washington,DC,2014.
[7]杨晓强,叶刘锁,李载鹏,等.田湾核电站3号机组反应堆首次无源启动[J].核安全,2018,17(5):7-13.
[8]穆海洋,宋雨,管运全.田湾核电站反应堆保护系统多样化的研究[J].核安全,2018,17(3):17-21.
[9]吴耀,李莉,毛常磊,等.反应堆卸料燃料组件吊运跌落事故辐射安全分析[J].核安全,2018,17(3):47-51.
[10]彭志珍.18个月换料对CPR1000反应堆压力容器辐照监督的影响[J].核安全,2018,17(3):22-27.