| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger allowing drastic reduction of assembling man-hours and reduction of the number of components to reduce production cost, without requiring any fastening means such as a bolt while keeping heat exchange performance high. SOLUTION: In this heat exchanger, a large number of heat transfer tubes are stored inside a cylindrical shell, an inlet header and an outlet header are fixed to both the sides of the shell, and a first fluid flowing to the outlet header from the inlet header through the insides of the heat transfer tubes and a second fluid flowing inside the shell are heat-exchanged through the heat transfer pipes. In the heat exchanger, the large number of heat transfer tubes are bundled and stored in the shell, and both end parts of each heat transfer tube are welded to the inner sides of the inlet header and the outlet header by a fluxing agent having a lower melting point than the heat transfer tube and the two headers. COPYRIGHT: (C)2005,JPO&NCIPI |
