AP1000核电厂反应堆冷却剂系统布置设计

Layout Design of Reactor Coolant System of AP1000 NPP

AP1000核电厂反应堆冷却剂系统布置设计,在满足系统功能的前提下,充分考虑了屏蔽防护、核级部件在役检查、模块化设计、内部灾害防护等方面的要求。反应堆冷却剂系统主设备及主回路采用了紧凑型的布置方式,改善了环路配置的经济性,波动管布置在考虑足够柔性的基础上采用了大倾斜角连续上坡的方式,降低了波动管在运行过程中出现热分层的可能性,稳压器安全阀及ADS第1、2、3级集中布置在稳压器顶部,组合成一体化的模块Q601,改善了反应堆冷却剂系统布置结构。

AP1000 nuclear power plant represents advanced third generation nuclear power technology. The reactor coolant system layout design not only satisfies the requirement of system function, but also consider sufficiently the requirement of ALARA, in-service inspection for nuclear mechanical components, module design criteria and calamity protection from internally generated. The compact layout design is applied to main equipments and main loops to improve economic capability. The surge line is oblique up continuously with a certain large angle, the layout design considers the flexibility sufficiently and reduces the probability of thermal stratification during plant operation. The pressurizer safety valves and ADS 1, 2, 3 are located on the pressurizer head and form the module Q601 which improves the arrangement structure of reactor coolant system.