To provide a heat exchanger wherein air does not dwell in a heat exchange device in a housing, and a rapid heat exchange rate is achieved.
A heat exchanger includes a substrate comprising low crystallizability polyolefin with crystallization of 40% or less, a heat storage unit 1 taking as a constituent material an organic heat storage material carried on the substrate and rendered to reversible phase transition between solid and liquid phases, a heat exchange device 3 having a heat medium flow passage 2 making direct contact with the heat storage unit 1, and a housing 4 for housing the heat exchange device 3 in a housing chamber 10 therein. The heat storage unit 1 is an assembly of pellet like particles having a heat storage property, and includes a rectifier plate 11 before and after the housing chamber 10 where a heat medium flows horizontally. A ceiling of the housing chamber 10 comprises a partition plate 8 having a plurality of through-holes 9 each having a smaller diameter than that of the particle, and further includes a gap 7 serving as a vent passage between the partition plate 8 and an upper inner surface 4a of the housing 4. Air in the heat exchange device 3 passes through the through-holes 9 in the partition plate 8 and gathers to the gap 7 so that the flow passage 2 for the heat medium is prevented from being obstructed by the air.
SEI MIKIO
KUDO HITOSHI
SUGAWARA AKIRA
TSUBAKI KENJI
KAWADA SOICHIRO
