Title:
HOT WATER HEATING DEVICE
Document Type and Number:
Japanese Patent JP3691375
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hot water heating device in which hot water is assuredly prevented from dropping from a heating terminal device upon stop of a heating operation.
SOLUTION: A heat source device 1 is connected to the heating terminal device 5 by a forward circulation path 2 and a return circulation path 3. The heating terminal device 5 heats a room by using the hot water supplied from the heat source device 1 as a heat source. A unit 6 for meeting a third floor connected to the intermediate parts of the forward circulation path 2 and the return circulation path 3 is provided with a check valve 31 provided in the forward circulation path 2 to permit the hot water to pass in a forward direction and prohibit the hot water from flowing in an opposite direction and a pressure response valve 32 provided in the return circulation path 3 and opening when prescribed pressure or higher is applied from an upstream side. The prescribed pressure is set to a value higher than pressure under which when the supply of the hot water to the heating terminal device is stopped, the hot water at about the prescribed temperature which remains in the circulation path or the heating terminal device located from the check valve to and the heating terminal device is changed to steam.
Inventors:
Kinji Mori
Shimazaki Masaru
Shimazaki Masaru
Application Number:
JP2000324475A
Publication Date:
September 07, 2005
Filing Date:
October 24, 2000
Export Citation:
Assignee:
Rinnai Corporation
International Classes:
F24D3/00; F24D3/10; (IPC1-7): F24D3/00; F24D3/10
Domestic Patent References:
| JP2000130775A | ||||
| JP47027148Y1 | ||||
| JP54004450A |
Attorney, Agent or Firm:
Tatsuhiko Sato
Takehiro Chiba
Takehiro Chiba
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