TWISTED TUBE TYPE HEAT EXCHANGER - MITSUBISHI ELECTRIC CORP

Title:

TWISTED TUBE TYPE HEAT EXCHANGER

Document Type and Number:

Japanese Patent JP2010091266

Kind Code:

A

Abstract:

To solve a problem in a conventional heat exchanger wherein heat transfer performance is not sufficient due to a small contact area between first fluid tubing and second fluid tubing because the outer periphery of the first fluid tubing is a smooth tube or a corrugated tube.

This twisted tube type heat exchanger includes the first fluid tubing formed by twisting and spirally provided with multiple lines of crest and trough bottom parts on the outer periphery continuously for each line, and the second fluid tubing spirally wound along the shape of the crest and trough bottom parts on the outer periphery of the first fluid tubing. The second fluid tubing is fitted into the crest and trough bottom parts of the first fluid tubing to provide heat transfer joinable constitution.

Inventors:

HANAKI TAKAYUKI
HAYAKAWA MITSUSADA
KAWAI TAKAHIKO
KANETANI TAKASHI
MORI HIDEKI
NAKANO HIDEAKI
NOMOTO SO
YOSHIDA TAKAYUKI
HAYASHI TAKEHIRO

Application Number:

JP2009270041A

Publication Date:

April 22, 2010

Filing Date:

November 27, 2009

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP

International Classes:

F28D7/02; B21D11/06; B21D11/14; B21D53/06; B23K1/00; F24H9/00; B23K101/14; B23K103/02; B23K103/10; B23K103/12; B23K103/14

Domestic Patent References:

JP2001280862A	2001-10-10
JP2003247747A	2003-09-05
JPS5451962A	1979-04-24
JP2002228370A	2002-08-14
JPS49130357A	1974-12-13

Attorney, Agent or Firm:

Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka

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