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岭澳核电站在不增加投资 ,不降低给水泵运行的经济性和汽蚀性能的前提下 ,对给水泵及相关设备进行了一系列改进 :采用 2台 75 %汽泵和 1台 5 0 %电泵配置方式 ;其汽动给水泵的给水量由最大需水量的 6 5 %提高到75 % ;对驱动汽动给水泵的汽轮机 1～ 4级动叶片的高度和宽度尺寸作了调整 ;提高推力瓦固定螺栓的压紧力矩 ,避免推力瓦移动的可能性。通过上述改进 ,即使在电动泵不可用时也不会引起反应堆跳闸 ,大大提高了机组运行的可靠性 ,为实现核电站安全、经济运行提供了技术上的保证
The Ling Ao Nuclear Power Station has carried out a series of improvements to its water supply pumps and related equipment without increasing investment and reducing the economy and cavitation performance of the feed water pump: 2 sets of 75% steam pumps and 1 set of 50% electricity Pump configuration; its water supply pump feed pump from the maximum water demand of 65% to 75%; to drive the steam feed pump steam turbine 1 to 4 rotor blade height and width dimensions have been adjusted; increase thrust Tightening torque of the fixing bolts to avoid the possibility of movement of the thrust shoes. Through the above improvement, the reactor will not be tripped even when the electric pump is unavailable, which greatly improves the reliability of the unit operation and provides a technical guarantee for the safe and economical operation of the nuclear power station