Title:
燃焼装置
Document Type and Number:
Japanese Patent JP6722546
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a combustion apparatus, comprising a check valve for preventing air from flowing back at a periphery of a heat exchanger, that can suitably prevent trouble in the apparatus due to a back flow of acidic steam.SOLUTION: A combustion apparatus comprises: a burner 11: a heat exchanger 12 which collects heat in a combustion exhaust gas produced by the burner 11; a combustion fan 13 which supplies air for combustion to the burner 11; a check valve 15 which is opened and closed during a stop of the combustion fan 13 to prevent air at a periphery of the heat exchanger 12 from flowing back to the side of the combustion fan 13; an exhaust cylinder connection part 102 for connecting an exhaust cylinder M2; exhaust temperature detecting means 52 for detecting a temperature downstream from the burner 11 in an air supply and exhaustion path; and variation determination means for determining whether an exhaust detection temperature T2 of the exhaust temperature detecting means 52 has predetermined variation. The combustion apparatus is configured to determine that the check valve 15 has an opening failure and to perform predetermined abnormality handling processing if the exhaust detection temperature T2 has the predetermined variation when the combustion fan 13 is stopped.SELECTED DRAWING: Figure 1
Inventors:
Yuya Miyazaki
Application Number:
JP2016164506A
Publication Date:
July 15, 2020
Filing Date:
August 25, 2016
Export Citation:
Assignee:
Rinnai Corporation
International Classes:
F23N5/24; F23N5/00
Domestic Patent References:
| JP2006266534A |
Attorney, Agent or Firm:
Eiji Miyazaki
Tomohiro Harada
Tomohiro Harada