发明名称 |
HEAT EXCHANGER, HEAT EXCHANGE SYSTEM, AND CONSTRUCTION METHOD OF HEAT EXCHANGE SYSTEM |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a highly efficient heat exchanger with no risk of the occurrence of a pitch deviation in a pipe of the heat exchanger, t facilitating working and construction even when buried. <P>SOLUTION: An inner pipe 3 provided with a spiral groove 9 on the outer face is inserted in a cylindrical outer pipe 5. The outer diameter (outer diameter of a projection part 11) of the inner pipe 3 and the inner diameter of the outer pipe 5 are substantially the same. Therefore, the projection part 11 of the inner pipe 3 and the inner face of the outer pipe 5 come in contact, and a spiral flow passage surrounded by the groove 9 and the inner face of the outer pipe 5 is formed. When a fluid is made to flow in the flow passage, the fluid flows in the spiral flow passage formed by the groove 9 and the inner face of the outer pipe 5, and performs heat exchange with the surrounding ground heat. <P>COPYRIGHT: (C)2009,JPO&INPIT |
申请公布号 |
JP2008292107(A) |
申请公布日期 |
2008.12.04 |
申请号 |
JP20070140101 |
申请日期 |
2007.05.28 |
申请人 |
FURUKAWA ELECTRIC CO LTD:THE |
发明人 |
SUWA YASUHIKO;SATO TADAHIRO;SAKADO JIRO;TERAUCHI SADATO;HIDESHIMA TAMOTSU |
分类号 |
F24J3/08;F24H9/00;F28D7/02;F28D7/12;F28D21/00 |
主分类号 |
F24J3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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