| 摘要 |
PURPOSE:To provide a flexibility in operation in forming a flame, and enable a large-scaled combustion to be carried out by a method wherein a heat accumulation member is fixed to a main body of a combustion device, a rotary duct is rotated so as to perform a gas supplying or a gas discharging operation. CONSTITUTION:A heat accumulation member 37 is fixed to a main body 31 of a combustion device, a rotary duct 44 is arranged within a case 39 of a burner main body, and then an air passage 33 and a discharged gas passage are formed within the rotary duct 44. Combustion air passes from the air passage 33 through the heat accumulation member 37 and further passes into the main body 31 of the combustion device. The discharged gas passes within the heat accumulation member 37 and passes through the discharged gas passage. That is, the combustion air is gradually guided to the heat accumulation member 37 of high temperature under a rotation of the duct 44, so that the combustion is carried out in the high temperature region and the time ranging from a starting of combustion to the predetermined high temperature time can be made short. With such an arrangement as above, it is possible to provide a flexibility in operation of forming flame and to increase its size. |
