Title:
燃焼熱源機
Document Type and Number:
Japanese Patent JP7377677
Kind Code:
B2
Abstract:
To provide a technique for detecting a minor water leak which cannot be detected by a flow rate sensor.SOLUTION: A combustion heat source machine includes: a burner group 3; a gas-liquid heat exchanger 6 for heating water by exchanging heat with combustion gas of the burner; an inlet pipe 7 which flows water into the gas-liquid heat exchanger; an outlet pipe 8 through which water flows out from the gas-liquid heat exchanger; a heat exchanger outlet temperature sensor 21 for detecting the temperature of water flowing from the gas-liquid heat exchanger into the outlet pipe; a fuel adjust valve for adjusting a flow rate of the fuel supplied to the burner; a storage 10 for storing the burner and the gas-liquid heat exchanger; a storage temperature sensor 20 for detecting temperature of the storage; and a control device. The control device adjusts an opening of the fuel adjust valve such that the temperature detected by the heat exchanger outlet temperature sensor reaches the target temperature. The control device detects a water leak in the gas-liquid heat exchanger based on the record of the temperatures detected by the storage temperature sensor.SELECTED DRAWING: Figure 1
Inventors:
Seiji Imai
Taiki Kato
Taiki Kato
Application Number:
JP2019204903A
Publication Date:
November 10, 2023
Filing Date:
November 12, 2019
Export Citation:
Assignee:
Rinnai Corporation
International Classes:
F24H15/12; F24H1/14; F24H9/20; F24H15/20; F24H15/219; F24H15/238; F24H15/36
Domestic Patent References:
| JP2010249438A | ||||
| JP2002147847A |
Foreign References:
| WO2013190728A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Kaiyu International Patent Office
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