SYSTEM FOR REMOVING DECAY HEAT HAVING A HEAT EXCHANGER WITH HEAT PIPE

摘要

PURPOSE: A remaining heat removing system having a heat pipe exchanger is provided to supply passive remaining heat removing capability by the heat pipe exchanger at high temperature which threats safety of a nuclear reactor, thereby removing desired cooling capability by a sodium-air heat exchanger under the temperature. CONSTITUTION: A remaining heat removing system(100) includes a heat pipe exchanger(130) and a sodium-air heat exchanger(150). The heat pipe exchanger receives decay heat of a decay heat exchanger(110) by a high temperature pipe(120) of a sodium loop for removing heat and discharges it to the outside. The sodium-air heat exchanger is connected to a heat pipe exchanger by a high temperature pipe. The sodium-air heat exchanger discharges the delay heat transferred through the high temperature pipe to the outside.