ROTARY HEAT EXCHANGER

PURPOSE:To improve the latent heat recovery efficiency of waste heat by providing a heat pipe group rotor exposed at the ends of primary and secondary fluid passages and constructing to inject and supply secondary fluid to the outer surface of the heat pipe in the secondary fluid passage. CONSTITUTION:Primary fluid A is supplied to a primary fluid 17, and is exhausted to an outlet 14. In the meantime, the fluid is contacted with a heat pipe 5 and fins 4 disposed in a turbine blade shape, and radiates heat to the end 5' of the heat pipe 5 while rotating the fins. The heat pipe 5 transfers the heat to the secondary fluid 17' and the side end 5''. At this time, secondary fluid B is scattered to the end 5''. of the heat pipe 5. Accordingly, it radiates heat to the secondary fluid B. In this manner, since the heat pipe 5 is rotated by the fluid A, the cntact is improved, and the heat transfer rate can be improved. Further, even if fluid leakage occurs at the seals 6, 13, direct contact of both fluids is not produced, thereby simplifying the structure of the sealing structure.