HEAT SOURCE UNIT FOR REFRIGERATION DEVICE

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.

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Inventors:

UEDA HIROKI (JP)
OKUBO EISAKU (JP)

Application Number:

PCT/JP2017/028134

Publication Date:

February 08, 2018

Filing Date:

August 02, 2017

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

F25B1/00; F25B5/02; F25B6/02; F25B13/00; F25B27/00

Domestic Patent References:

WO2015162679A1

2015-10-29

Foreign References:

JP2016008788A	2016-01-18
JPH0712417A	1995-01-17
JP2011075222A	2011-04-14
JP2011038711A	2011-02-24
JPH1123111A	1999-01-26
JP2005069554A	2005-03-17
JPH08210719A	1996-08-20
US20130091877A1	2013-04-18

Other References: