METHOD FOR SPRAYING WITH NOZZLE AND NOZZLE

摘要

Disclosed is a method for spraying with a nozzle which enables to properly switch between one-fluid spray of spraying only a liquid and two-fluid spray of spraying a mixture of a liquid and air without varying a spraying angle etc. using a single nozzle. The nozzle is connected to a liquid feeding tube and an air feeding tube so as to combine the one-fluid spray of spraying only a liquid and the two-fluid spray of spraying a mixture of a liquid and air. The one-fluid spray of spraying only a liquid is performed when a fluid pressure is high, that is when the amount of a supplied liquid is large, and two-fluid spray of spraying a mixture of a liquid and air is performed when the fluid pressure is low, that is when the amount of the supplied liquid is small.