HEAT PUMP HOT WATER SUPPLY SYSTEM - MITSUBISHI ELECTRIC CORP

Title:

HEAT PUMP HOT WATER SUPPLY SYSTEM

Document Type and Number:

WIPO Patent Application WO/2016/189663

Kind Code:

A1

Abstract:

The present invention is provided with: a heat pump water heater (100) including a main circuit (80) in which a compressor (1) which compresses a refrigerant, a gas cooler (2), a first electromagnetic valve (80V1), a thermal storage heat exchanger (3), an expansion valve (4), and an air heat exchanger (5) are connected sequentially; a hot water supply tank (20) which contains a heating medium that exchanges heat with a refrigerant flowing through the gas cooler (2); and a thermal storage tank (30) which contains a heating medium that exchanges heat with a refrigerant flowing through the thermal storage heat exchanger (3). The heat pump water heater (100) includes: a first bypass circuit (81) which is disposed so as to branch off from the main circuit (80) at a first branch part (81a) located on an outlet side of the gas cooler (2) and on an inlet side of the first electromagnetic valve (80V1) and so as to join the main circuit (80) at a first joining part (81b) located on an outlet side of the thermal storage heat exchanger (3) and on an inlet side of the expansion valve (4); and a control means (50) which switches between opening and closing of the first electromagnetic valve (80V1).

Inventors:

OBAYASHI TOMOYOSHI (JP)
SAIKUSA TETSUJI (JP)
TSUJI YUSUKE (JP)

Application Number:

PCT/JP2015/065127

Publication Date:

December 01, 2016

Filing Date:

May 26, 2015

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F24H1/00; F25B1/00; F25B5/00; F25B5/04; F25B6/04

Domestic Patent References:

WO2013046720A1

2013-04-04

Foreign References:

JP2003065603A	2003-03-05
JP2003042538A	2003-02-13
JP2005042943A	2005-02-17
JP2012167869A	2012-09-06
JP2008292122A	2008-12-04
JP2006349202A	2006-12-28

Other References: