Title:
Bath hot-water supply device
Document Type and Number:
Japanese Patent JP5912995
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a bath hot water supply device capable of preventing freezing of a water supply flow channel and a hot water tapping flow channel connected to a hot water storage tank.SOLUTION: A bath circulation pump 22 is disposed on a mounting plate 49 in a state of being positioned between a hot water supply pipe 13 and a water supply pipe 5, and a freeze preventing operation by circulating bathtub water in a bath circulation circuit 21 by driving the bath circulation pump 22 is started when an outside air temperature detected by an outside air temperature sensor 36 is a prescribed value or less, and probability of freezing of bathtub water exists, thus an ambient temperature is raised by heat of the bathtub water circulated in the bath circulation circuit 21 and heat generated from the bath circulation pump 22 itself, the hot water supply pipe 13 and a water supply pipe 5 are heated, and freezing of hot water/water inside of the pipes can be prevented. Further by disposing a pressure reducing valve 33 in the water supply pipe 5 while surrounded by a bath return pipe 19, freezing of the pressure reducing valve 33 can be prevented by heat radiation from the bath return pipe 19.
Inventors:
Keisuke Itami
Yusuke Matsumoto
Masaru Sasaki
Yusuke Matsumoto
Masaru Sasaki
Application Number:
JP2012182455A
Publication Date:
April 27, 2016
Filing Date:
August 21, 2012
Export Citation:
Assignee:
Corona Co., Ltd.
International Classes:
F24H1/00; F24H1/18
Domestic Patent References:
| JP2000249400A | ||||
| JP2010281487A | ||||
| JP2003262396A | ||||
| JP2010112659A |