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Title:
HEAT SOURCE UNIT FOR REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/025934
Kind Code:
A1
Abstract:
A heat source unit (11) for an air-conditioning device (10) that is a refrigeration device, said heat source unit being provided with a heat-source-side heat exchanger (40) that exchanges heat between a refrigerant and heat source water. The heat-source-side heat exchanger (40) is equipped with multiple heat exchange units (41a, 41b), and the size of the heat exchange region can be adjusted by changing the number of the heat exchange units (41a, 41b) into which the refrigerant flows. A controller (70) of the heat source unit (11) adjusts the size of the heat exchange region of the heat-source-side heat exchanger (40) on the basis of a pressure difference index value. Consequently, the temperature range of the heat source water for which operation is possible is expanded in the heat source unit of the refrigeration device.

Inventors:
UEDA Hiroki (Umeda Center Building, 4-12, Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
OKUBO Eisaku (Umeda Center Building, 4-12, Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
Application Number:
JP2017/028134
Publication Date:
February 08, 2018
Filing Date:
August 02, 2017
Export Citation:
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Assignee:
DAIKIN INDUSTRIES, LTD. (Umeda Center Building, 4-12 Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
International Classes:
F25B1/00; F25B5/02; F25B6/02; F25B13/00; F25B27/00
Domestic Patent References:
2015-10-29
Foreign References:
JP2016008788A2016-01-18
JPH0712417A1995-01-17
JP2011075222A2011-04-14
JP2011038711A2011-02-24
JPH1123111A1999-01-26
JP2005069554A2005-03-17
JPH08210719A1996-08-20
US20130091877A12013-04-18
Attorney, Agent or Firm:
MAEDA & PARTNERS (Shin-Daibiru Bldg. 23F, 2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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