LIQUID METAL-AIR HEAT EXCHANGER USING SPIRAL HEAT TRANSFER TUBE AND RESIDUAL HEAT REMOVAL SYSTEM OF LIQUID METAL COOLING REACTOR PROVIDED WITH SAME

摘要

The present invention provides a liquid metal-air heat exchanger, which comprises: a shroud formed to be extended in a vertical direction; an upper chamber provided in an upper part of a circumference of the shroud and realized to hold liquid metal flowing thereinto via a high temperature tube and discharge the liquid metal; a lower chamber provided in a lower part of a circumference of the shroud and connected to a low temperature tube discharging the liquid metal; an air inlet tube forming a first flow passage in an upper side to suck air; an air outlet tube forming a second flow passage in an upper side to discharge air; an inner container connected to the air inlet tube and the air outlet tube; and a plurality of heat transfer tubes wound in a spiral direction within a first ring-shaped space between an outer circumference of the inner container and an inner circumference of the shroud, having both ends connected to the upper chamber and the lower chamber to make the liquid metal flow, wherein the air flows therein via the first flow passage, cools the liquid metal within the heat transfer tubes while passing through the first ring-shaped space, and flows thereout via the second flow passage. The present invention is provided with the air inlet tube and the air outlet tube forming the flow passage in the upper side to enable stable air cooling to be performed.;COPYRIGHT KIPO 2016