Title:
Hot-water-storing hot water supply device
Document Type and Number:
Japanese Patent JP6237988
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hot water storage type hot water supply device which can improve heat exchange efficiency by eliminating wasteful combustion of an auxiliary heat source machine, and which can improve operation efficiency of the hot water storage type hot water supply device by effectively utilizing high temperature water in a hot water storage tank water which can be supplied.SOLUTION: A hot water storage type hot water supply device 1 which heats and supplies hot water/water in a hot water storage tank 2 by utilizing an auxiliary heat source machine 3 in the case where a hot water/water temperature in the hot water storage tank decreases includes: a hot water storage tank hot water/water temperature detection sensor 2d for detecting a hot water/water temperature at an upper part of the hot water storage tank 2; a passage hot water/water temperature detection sensor 25 for detecting the hot water/water temperature flowing to an auxiliary heating passage 23 from a tank hot water tapping passage 22; and a control unit 35 which switches a three-way valve 26 capable of switching between the tank hot water tapping passage 22 and the auxiliary heating passage 23 to the auxiliary heating passage 23 side in the case where a detection temperature of the hot water storage tank hot water/water temperature detection sensor 2d becomes equal to or less than a first preset temperature, and which starts combustion of the auxiliary heat source machine 3 in the case where the detection temperature of the passage hot water/water temperature detection sensor 25 becomes equal to or less than a second preset temperature.
Inventors:
Naoto Iwasawa
Jun Iwamoto
Kenta Yamanishi
Kunihiko Nakano
Jun Iwamoto
Kenta Yamanishi
Kunihiko Nakano
Application Number:
JP2013153159A
Publication Date:
November 29, 2017
Filing Date:
July 24, 2013
Export Citation:
Assignee:
Noritsu Co., Ltd.
International Classes:
F24H1/18
Domestic Patent References:
| JP2011196569A | ||||
| JP2006214619A | ||||
| JP2006242509A |
Attorney, Agent or Firm:
Toshio Okamura