PASSIVE SAFETY SYSTEM AND NUCLEAR POWER PLANT HAVING THE SAME

摘要

The present invention discloses a passive safety system and a nuclear power plant including the same. The passive safety system includes a passive containment cooling system including a first circulating path connected to a containment part to pass the air in the containment part, and cooling the air in the containment part through heat exchanging to suppress an increase in pressure in the containment part; a passive residual heat removing system including a second circulating path passing a primary system fluid or secondary system fluid, and cooling the primary system fluid or secondary system fluid through heat exchanging to remove the residual heat of a core and the sensible heat of a nuclear reactor cooling material system; and a plate type heat exchanger including channels arranged on a plate to induce heat exchanging between fluids while maintaining a pressure boundary, and connected to the first and second circulating paths to cool the primary and secondary system fluids through the channels.