| 摘要 |
The present invention relates to a backfire prevention apparatus of an injection nozzle for oxyhydrogen gas, which prevents a backfire of flame in an injection nozzle which sprays oxyhydrogen gas in which oxygen and hydrogen are mixed. The backfire prevention apparatus according to the present invention comprises: a gas supply unit; an injection nozzle; a gas line; an air supply unit; and an air line. The gas supply unit supplies the oxyhydrogen gas in which oxygen and hydrogen are mixed. The injection nozzle generates the flame by spraying the oxyhydrogen gas supplied from the gas supply unit. The gas line connects the gas supply unit and the injection nozzle, and has the oxyhydrogen gas flowing therethrough. The air supply unit supplies the air toward the injection nozzle to eject the oxyhydrogen gas remaining inside the gas line to the outside of the gas line. The air line connects the air supply unit and the gas line, forms an intersecting point on the gas line, and has the air supplied from the air supply unit flowing therethrough. |
