Title:
HOT WATER SUPPLY HEATING DEVICE
Document Type and Number:
Japanese Patent JP2022152810
Kind Code:
A
Abstract:
To provide a hot water supply heating device in which a heat pump can be efficiently used for a high-temperature heating terminal.SOLUTION: A hot water supply heating device comprises: a hot supply water circulation passage 20 through which hot supply water is circulated; a heating water circulation passage 80 through which heating water for supplying heat to a high-temperature heating terminal 76 is circulated; a heat pump unit 6 arranged in the hot supply water circulation passage 20 and the heating water circulation passage 80, and comprising a heat pump 61, a hot supply water heat exchanger 63, and a heating water heat exchanger 65; a hot water storage tank 4 arranged in the hot supply water circulation passage 20 for storing the hot supply water heated by the hot supply water heat exchanger 63; a burner 8 arranged in the heating water circulation passage 80 for heating the heating water; and a connection water passage 44 provided between a hot water discharge port 43 of the hot water storage tank 4 and a flow passage located upstream of the high-temperature heating terminal 76 in the heating water circulation passage 80. The heating water circulation passage 80 is connected so as to be capable of supplying heat to the high-temperature heating terminal 76 and constituted so as to be capable of supplying heat of the hot supply water in the hot water storage tank 4 to the high-temperature heating terminal 76 via the connection water passage 44.SELECTED DRAWING: Figure 1
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Inventors:
NAKAJIMA TAKUMI
Application Number:
JP2021055734A
Publication Date:
October 12, 2022
Filing Date:
March 29, 2021
Export Citation:
Assignee:
OSAKA GAS CO LTD
International Classes:
F24D3/00; F24D3/08; F24D3/18; F24H4/02
Attorney, Agent or Firm:
Patent business corporation r&c