Nuclear power plant safety system configuration system

The invention belongs to the technical field of nuclear power plant safety design, and particularly relates to a nuclear power plant safety system configuration system. The system comprises a passive emergency reactor core cooling system for coping with design basis accidents, a secondary side passive residual heat removal system and a passive containment cooling system. A large number of passive systems are configured, passive characteristics such as natural circulation and gravity are fully utilized, the safety and reliability of the nuclear power plant are greatly improved, and measures such as active equipment, an external power source, a safety support system and a safety-level emergency diesel generator set are canceled through a passive safety system configuration scheme. The design, construction, operation and maintenance of the system are simplified, and the economical efficiency of the unit is further improved while the safety is ensured.