HEAT EXCHANGER FOR RADIATION PANEL

PROBLEM TO BE SOLVED: To provide a heat exchanger for a radiation panel capable of uniforming surface temperature distribution of the radiation panel even when temperature difference between an inlet and an outlet of cold/hot water is increased by reducing cold/hot water flow rate. SOLUTION: First and second cold/hot water inlet headers 21 and 23 are arranged in parallel at a predetermined interval, a first cold/hot water outlet header 22 is arranged on the first cold/hot water inlet header 21, a second cold/hot water outlet header 24 is arranged on the second cold/hot water inlet header 23, the first and second cold/hot water inlet headers 21 and 23 are interconnected through a cold/hot water inlet collecting header 25, and the first and second cold/hot water outlet headers 22 and 24 are interconnected through a cold/hot water outlet collecting header 26. A heat transfer tube group 28 is constituted by alternately arranging heat transfer tubes 27 for connecting the first cold/hot water inlet header 21 to the second cold/hot water outlet header 24 and heat transfer tubes 27 for connecting the second cold/hot water inlet header 23 to the first cold/hot water outlet header 22. Thus, in the heat exchanger 10 for the radiation panel, the cold/hot water in adjacent heat transfer tubes 27 flows oppositely. COPYRIGHT: (C)2006,JPO&NCIPI