Abstract：In order to provide water injection in the emergency condition, a water injection device for nuclear reactor coolant pump was designed. The structure of the water injection device was also optimized. To verify its reliability, the shaft seal water injection closing test was conducted by a full flow test rig. The temperatures at the conditions of A(emergency water injection starting up+main pumps closing down), B(no emergency water injection+main pumps closing down)and C(emergency water injection starting up+main pumps working)were tested when the injection water was disrupted. The results indicated that after a jet pump was planted, the emergency injection system started up in time on the condition of injection water disruption as main pumps were at work. The temperature of the seal components maintained at 70 ℃ and it did not rise in the test, which effectively decreased the temperature of seal components. The designed jet pump improves the reliability of the emergency water injection system and meets the requirement in the actual application.
吕延光, 吴景鑫*, 范业娇, 胡雷. 核主泵紧急注入水供应系统结构的改进及试验[J]. 排灌机械工程学报, 2018, 36(4): 283-287.
LYU Yanguang, WU Jingxin*, FAN Yejiao, HU Lei. Improvement and experiment of emergency injection water supply system of nuclear reactor coolant pump. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(4): 283-287.
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