Title:
HEAT PUMP DEVICE AND COGENERATION DEVICE
Document Type and Number:
Japanese Patent JP2015068630
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a heat pump device capable of improving energy efficiency even when temperature change of a heated medium is small, and a cogeneration device utilizing the heat pump device.SOLUTION: A heat pump device 1 has a hot water storage circuit 4 applying COas a refrigerant, and heating circulated warm water to store the warm water of a prescribed temperature. The heat pump device 1 is connected so that the refrigerant compressed by a first compressor 11 is passed through a first heating condenser 12 to heat the warm water, compressed by a second compressor 13, passed through a second heating condenser 14 to heat the warm water, decompressed by an expansion valve 15, cooled by an evaporator 17, and then returned to the first compressor 11 again to repeat the circulation. The heat pump device 1 may have an internal heat exchanger 16 to exchange heat between the refrigerant before passing through the evaporator 17 and the refrigerant after passing through the evaporator 17.
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Inventors:
FUKUTOME JIRO
Application Number:
JP2013206210A
Publication Date:
April 13, 2015
Filing Date:
October 01, 2013
Export Citation:
Assignee:
YANMAR CO LTD
International Classes:
F25B7/00; F25B1/00; F25B11/02; F25B30/02
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office
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