Title:
HEAT PUMP APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/198424
Kind Code:
A1
Abstract:
Provided is a heat pump apparatus capable of suppressing the flow of liquid having a low temperature into a tank, while also suppressing a reduction in the COP when a heat storage operation starts. The heat pump apparatus is provided with a compressor for compressing a refrigerant, a heat exchanger for exchanging heat between the refrigerant compressed in the compressor and a liquid, a pump for allowing the liquid to flow, a tank, a control device for controlling the heat storage operation for storing the liquid heated in the heat exchanger in the tank, and a means for detecting or estimating a compressor temperature, which is the temperature of the compressor or the temperature of the refrigerant discharged from the compressor. The control device determines a hot start or a cold start on the basis of the compressor temperature at the start of the heat storage operation. In the case of a cold start, the liquid flowing out from the heat exchanger in a first stage of the heat storage operation is made to have a temperature lower than that of the liquid flowing out from the heat exchanger in a second stage of the heat storage operation.
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Inventors:
TAKAYAMA KEISUKE (JP)
KOIDE TORU (JP)
AKAGI SATOSHI (JP)
TAKEUCHI FUMIHITO (JP)
KOIDE TORU (JP)
AKAGI SATOSHI (JP)
TAKEUCHI FUMIHITO (JP)
Application Number:
PCT/JP2014/066849
Publication Date:
December 30, 2015
Filing Date:
June 25, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F24H1/00; F25B1/00; F25B30/02
Foreign References:
| JP2009250461A | 2009-10-29 | |||
| JP2005147437A | 2005-06-09 | |||
| JP2011069502A | 2011-04-07 |
Other References:
See also references of EP 3163206A4
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
Takada 守 (JP)
Takada 守 (JP)
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