| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchange unit with a simple configuration, which facilitates assembly and exchange to achieve superior mass productivity and maintainability, facilitates making a long product to achieve a superior design flexibility, and in which a heat exchanger is hardly damaged when in construction or the like to achieve superior workability and robustness, and a geothermal heat is effectively utilized to achieve energy saving, environmental protection and efficiency of heat exchange.SOLUTION: A heat exchange unit includes a liquid-permeable cylindrical casing part installed in the earth or liquid, and a heat exchanger inserted into the casing part. The heat exchanger includes: (a) an upper connection member having a heating medium entrance part and a heating medium outlet part; (b) a heat collecting/radiating pipe where the upper end is connected with the heating medium outlet part to flow down the heating medium flowing out from the heating medium outlet part; (c) a lower connection member having a heating medium inlet part where the lower end of the heat collecting/radiating pipe is connected and the heating medium flows in, and a heating medium exit part for gathering and discharging the flow-in heating medium; and (d) a return pipe where the lower end is connected to the heating medium exit part of the lower connection member to reflux the heating medium. |
