摘要
辽宁红沿河核电站2号机常规岛在执行雨淋阀联动试验期间,APA泵、CEX泵及GHE密封油等区域火警探测器报警后,雨淋阀电磁阀驱动电压低于额定工作电压。通过不同机组常规岛火警联动试验结果对比分析,发现电磁阀驱动电压低原因为探测器触发报警后,火警控制器带载设备过多、线路压降过大,根本原因为常规岛火警控制器消防供电电源设计带载能力不足。通过制定临时方案及工程改造,保证火灾情况下雨淋阀正常动作。
During the linkage test of deluge valve on the conventional island of unit 2 of Liaoning Hongyanhe Nuclear Power Station,the driving voltage of deluge valve solenoid valve was lower than the rated working voltage after the alarm of fire detectors in areas where APA pumps,CEX pumps and GHE sealing oil are located.Through the comparative analysis of fire linkage test results for conventional islands of different units,it is found that the low driving voltage of the solenoid valve is due to the excessive load carrying equipment and large line voltage drop of the fire controller after the detector triggers the alarm.The root cause is the insufficient designed load carrying capacity of power supply for conventional island fire-fighting controller.By formulating temporary scheme and engineering transformation,the normal operation of deluge valve in case of fire is ensured.
作者
闫云飞
YAN Yunfei(Liaoning Hongyanhe Nuclear Power Co.,Ltd.,Dalian 116000)
出处
《电力安全技术》
2021年第7期49-52,56,共5页
Electric Safety Technology
关键词
核电
电磁阀
驱动电压低
带载能力
nuclear power
solenoid valve
driving voltage being lower
load-bearing capacity
作者简介
闫云飞(1987-),男,工程师,主要从事核电站消防安全管理和消防系统健康状态监督工作,email:p152950@cgnpc.com.cn。
