| 摘要 |
A burner used for fabricating an optical fiber perform is disclosed. The burner includes a burner housing, a first body formed with a plurality of spraying ports, and a second body aligned in a length direction of the first body. At least a part of the first body is accommodated in the burner housing. At least a part of the second body is accommodated in the burner housing. An oxidizing agent is fed into the second body along an outer peripheral surface of the second body and a fuel is fed into the second body along an inner peripheral surface of the first body. The oxidizing agent is uniformly mixed with the fuel in the first body and a mixture thereof is exhausted to an exterior through the spraying ports. The fuel and the oxidizing agent are separately fed into the burner and mixed with each other in the burner, thereby preventing the backfire phenomenon. Since the mixture of the fuel and the oxidizing agent is sprayed to the exterior after the fuel has been sufficiently mixed with the oxidizing agent in the burner, it is possible to obtain the perfect combustion for the mixing gas.
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