| 摘要 |
It is an object of the present invention to reduce the maintenance costs of burners. When repairing a burner 20, first, a door 2a provided on a front surface of a main housing 2 is opened. Next, a lower coupler 77b of a supply portion 70 is loosened and the screws of a flange portion 74b of a mixture supply duct 74 are removed, and the mixture supply portion 74, which has become a single unit with a connection duct 77, is removed from a gas duct 76, a tube 73 that is provided at the front end of an air duct 72, a front panel 83, and a burner unit 23. Then, all nuts on the front of the container 80 are removed and the front panel 83 is removed from the container 80. Next, the brim portions 20a of the burner 20 are slid over lower rails 90b and the burner is pulled out obliquely upward (on a substantially horizontal plane) from the access portion 85 on the front of the container 80, so that repairs to the burner 20, such as replacing its ceramic plate 22, can be carried out. |
