| 摘要 |
PURPOSE:To make it possible to adjust the length of the flowpath to change a heat exchange area and to adjust the heat exchange efficiency by making variable the pressurizing force in the overlapped direction of the heat exchange element, in a pi-flow type heat exchanger. CONSTITUTION:A pressurizing force 6 is applied to the heat exchanger in the laminated direction of the heat exchange element 1. In this case, the pressurizing force is released, and the heat exchange element 1 is caused to slide in the direction of the parallel flowpath 1a to narrow the width of the overlapped portion 5 of the heat exchange element 1. Then, the pressurizing force 6 is again applied to pressfit the overlapped portion 5 to prevent air leakage. Thus, by causing the heat exchange element 1 to slide, the length of the flowpath can be elongated, and the heat exchange efficiency can be increased by enlarging the heat exchange area. |
