Title:
TWISTED TUBE HEAT EXCHANGER AND MANUFACTURING METHOD FOR TWISTED TUBE HEAT EXCHANGERS
Document Type and Number:
WIPO Patent Application WO/2018/131112
Kind Code:
A1
Abstract:
A twisted tube heat exchanger with corrosion-protected water tubes and a manufacturing method for twisted tube heat exchangers. A twisted tube heat exchanger comprises: a water tube that is made of copper, that is provided with a helical groove on the outer circumference, and through which water flows; a metal layer that is formed from titanium or an austenitic stainless steel and that covers the inner face of the water tube; and a refrigerant tube that is wound on the outside of the water tube along the groove and through which refrigerant to perform heat exchange with the water flows.
Inventors:
AZUMA MASAAKI (JP)
Application Number:
PCT/JP2017/000790
Publication Date:
July 19, 2018
Filing Date:
January 12, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F28D7/02; F28F1/36; F28F1/42; F28F19/06
Foreign References:
| JP2009041880A | 2009-02-26 | |||
| JP2002510030A | 2002-04-02 | |||
| JPH11230685A | 1999-08-27 | |||
| JPH04306494A | 1992-10-29 | |||
| JP2012193869A | 2012-10-11 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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