Title:
ハイブリッド式給湯システム
Document Type and Number:
Japanese Patent JP7215956
Kind Code:
B2
Abstract:
To provide a hybrid type hot water supply system including a hot water storage tank 1, a heat pump unit 2, a tank water heating circuit 11 heating tank water by using the heat pump unit 2, a liquid-liquid heat exchanger 3 interposed in a hot water supply passage 13 connected to a top part of the hot water storage tank, a heat exchanger 4 capable of circulating a heating medium between the heat exchanger and the liquid-liquid heat exchanger and heated by a burner 41 and a heat collecting device 6, and enable execution of a tank water heating operation using the heat collecting device as a heat source without attaching a heating medium flow passage to a radiator of the heat pump unit.SOLUTION: A hybrid type hot water supply system includes a bypass passage 14 capable of connecting a water supply passage 12 with a portion of a hot water supply passage 13 downstream of a liquid-liquid heat exchanger 3. While a heating medium is heated by a heat collecting device 6, the heating medium is circulated between the heat collecting device 6 and the liquid-liquid heat exchanger 3, and tank water is circulated from a bottom part of a hot water storage tank 1 via the water supply passage 12, the bypass passage 14 and an upstream portion of the hot water supply passage 13 in which the liquid-liquid heat exchanger 3 is interposed to a top part of the hot water storage tank 1 to execute a tank water heating operation using the heat collecting device as a heat source.SELECTED DRAWING: Figure 2
Inventors:
Maki Akagi
Application Number:
JP2019081919A
Publication Date:
January 31, 2023
Filing Date:
April 23, 2019
Export Citation:
Assignee:
Rinnai Corporation
International Classes:
F24H15/375; F24H1/00; F24H4/02
Domestic Patent References:
| JP2014085067A | ||||
| JP2014059126A | ||||
| JP2010281470A |
Foreign References:
| GB2503781A | ||||
| WO2014155993A1 |
Attorney, Agent or Firm:
Seika Patent Attorney Corporation