Cooling water storage tank passive cooling device for containment passive cooling system

摘要

The present invention relates to a cooling system for a cooling water storage tank for a passive cooling system for a nuclear reactor building. The cooling water storage tank cooling apparatus includes: a cooling water storage tank for storing cooling water to be supplied to a nuclear reactor building; And a heat pipe coupled to the upper side of the cooling water storage tank such that one end is immersed in the cooling water stored in the cooling water storage tank, and the other end penetrates the upper surface of the cooling water storage tank and protrudes to the outside.