| 摘要 |
An ultra-fine spray nozzle is provided to reduce the number of repair times by preventing blocking of the nozzle, to decrease the spray noise, and to cut down the cost by making the diameter of particles in the size of 10 micrometers. In a two-fluid nozzle for spraying ultra-fine smog, a gas passage(41) is installed by fitting a partition wall to the outer periphery of a liquid passage. The gas passage communicates with a spraying port. The section of the gas passage formed at the spraying port of the partition wall is formed in a polygon, a long circle, or an oval. The section of the outer peripheral surface of the gas passage is formed in a circle to come into contact with the outer side of the partition wall at plural spots. The gas passage formed at a spraying part is divided into plural gas passages(41a-41d) in a peripheral direction. Therefore, the liquid jetted from the liquid passage is mixed with the gas ejected from the spraying ports of plural gas passages separated at the outer peripheral surface.
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