Title:
HEAT PUMP HOT WATER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/116525
Kind Code:
A1
Abstract:
Conventionally there are heat pump hot water supply devices equipped with an internal heat exchanger for exchanging heat between a high-pressure refrigerant flowing into a decompression device from a compressor and a low-pressure refrigerant flowing into the compressor from the decompression device. However, there is a problem in that it is not possible to prevent a low-pressure refrigerant from reaching a gas-liquid two-phase state with the amount of heat provided to the low-pressure refrigerant from the high-pressure refrigerant, as in conventional heat pump hot water supply devices. The heat pump hot water supply device according to the present invention is equipped with a water heat exchanger for exchanging heat between a high-pressure refrigerant, a low-pressure refrigerant, and water. Heat is supplied to the low-pressure refrigerant from the high-pressure refrigerant and the water, so the low-pressure refrigerant can be prevented from reaching a gas-liquid two-phase state.
Inventors:
MOTEGI SHUJI (JP)
Application Number:
PCT/JP2017/045021
Publication Date:
June 20, 2019
Filing Date:
December 15, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F24H4/02
Domestic Patent References:
| WO2010038568A1 | 2010-04-08 |
Foreign References:
| JP2005164103A | 2005-06-23 | |||
| JP2014066490A | 2014-04-17 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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