Title:
HOT WATER HEATING DEVICE
Document Type and Number:
Japanese Patent JP2019158297
Kind Code:
A
Abstract:
To provide a hot water heating device which prevents occurrence of an air entrainment sound during a heating operation.SOLUTION: A hot water heating device 1 includes: heating means 2 for heating a circulation liquid; a circulation pump 16 for circulating the circulation liquid heated in the heating means 2; a circulation circuit 15 where the circulation liquid circulates; a gas-water separator 17 provided in the middle of the circulation circuit 15, and for separating the air in the circulation liquid and the circulation liquid; and a control device 23 for controlling the operation. The hot water heating device performs a heating operation for supplying the heated circulation liquid to a heat radiation terminal 12. The control device 23 has a normal mode for controlling so as to drive the circulation pump 16 at constant rotational frequency set beforehand during a heating operation, and a gas-water separation mode for controlling so as to drive the circulation pump 16 at predetermined rotational frequency lower than the constant rotational frequency, and the gas-water separation mode operation is performed at predetermined timing during the heating operation.SELECTED DRAWING: Figure 2
Inventors:
KONDO SHIGEO
OTSUKA EIMEI
OTSUKA EIMEI
Application Number:
JP2018048912A
Publication Date:
September 19, 2019
Filing Date:
March 16, 2018
Export Citation:
Assignee:
CORONA CORP
International Classes:
F24D3/10; F24D3/00
Domestic Patent References:
| JP2002327931A | 2002-11-15 | |||
| JP2013167416A | 2013-08-29 |