| 摘要 |
PURPOSE:To make heat exchanging device durable longer by selecting each heat pipe for material, fin pitch and fin height according to properties of a working gas in a separate type heat exchanger. CONSTITUTION:A heat exchanging panel 2 is formed by selecting a large fin pitch, a low fin height and, where necessary, a heat resisting material for a heat pipe in a high-temperature gas duct. Where the heat pipe has a large fin pitch and a low fin height, dusts in a high-temperaure gas are hard to accumulate on the pipe and easy to remove at the same time. Then, where the gas in a low-temperature gas duct 3 has a corrosive component, that of corrosion resistance will be selected for the heat pipe. For the high-temperature gas containing much dust, a pipe 6G with a large fin pitch p will be positioned. In addition to efficient heat exchange, a heat exchanging device can now be made durable longer thereby. |
