| 摘要 |
PURPOSE:To provide a stable high temperature combustion by a method wherein three stages of combustion supporting gas injection hole which is applied for a gas fuel having a low combustion speed such as LPG are provided and the fuel is injected into a premixing chamber and a combustion chamber forming the burner in response to the occurrence of combustion. CONSTITUTION:Nozzle body 2 has a premixing chamber 7 and a combustion chamber 8 formed by the nozzle body 2 and the jacket 5. The gas fuel is injected from the gas fuel injection hole 15 through the gas fuel conduit 3. At the rear wall surface of the premixing chamber 7 is arranged the first combustion supporting gas injection hole 10 for use in injecting the combustion supporting gas such as oxygen, oxygen added air, normal air or the like, and at the wall surface of the premixing chamber 7 is arranged a second injection hole 10b, and at the outermost part of the nozzle body 2 is arranged the third injection hole 10c. These injection holes 10a, 10b, and 10c are connected to the combustion supporting gas distribution chamber 13, respectively. |
