HEAT EXCHANGER - DAIKIN IND LTD

Title:

HEAT EXCHANGER

Document Type and Number:

WIPO Patent Application WO/2013/015186

Kind Code:

A1

Abstract:

An economizer heat exchanger (6) comprises a header (61), first flat perforated pipes (64a), and second flat perforated pipes (64b). The header (61) has a first main flowpath (62a1) through which a first refrigerant flows and a second main flowpath (62a2) through which a second refrigerant flows. The first flat perforated pipes (64a) have a plurality of first refrigerant flowpath holes (65a) through which the first refrigerant flows. The second flat perforated pipes (64b) have a plurality of second refrigerant flowpath holes (65b) through which the second refrigerant flows. The header (61) has a pipe connection member (63). The pipe connection member (63) forms first auxiliary flowpaths (62c1) and second auxiliary flowpaths (62c2). The first auxiliary flowpaths (62c1) connect the first main flowpath (62a1) and the first refrigerant flowpath holes (65a). The second auxiliary flowpaths (62c2) connect the second main flowpath (62a2) and the second refrigerant flowpath holes (65b). The first flat perforated pipes (64a) and the second flat perforated pipes (64b) are closely attached and cause heat exchange between the first refrigerant and the second refrigerant.

Inventors:

YOSHIOKA SHUN
KAJI RYUHEI
SHIRAISHI YOSHIKAZU
FUJIWARA AKIHIRO
HYOUDOU TAKAYUKI

Application Number:

PCT/JP2012/068296

Publication Date:

January 31, 2013

Filing Date:

July 19, 2012

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
YOSHIOKA SHUN
KAJI RYUHEI
SHIRAISHI YOSHIKAZU
FUJIWARA AKIHIRO
HYOUDOU TAKAYUKI

International Classes:

F28D7/00; F28F1/02; F28F9/02; F28F9/16

Foreign References:

JP2007333304A	2007-12-27
JPH10267585A	1998-10-09
JP2001133189A	2001-05-18
JP2007163004A	2007-06-28

Other References: