Gas-liquid mixing nozzle, and emulsion fuel combustion systems and environmental purification liquid spray system using the gas-liquid mixing nozzle

摘要

Provided is a gas-liquid mixing nozzle (10) including an internal air discharge path (A), an external air discharge path (D), at least one liquid introduction path (B, C) which is disposed between the internal air discharge path (A) and the external air discharge path (D) and introduces a liquid having water and/or fuel as a main component into a nozzle discharge opening (18), and an impact member (22) with which a mixture of the air and the liquid mixed with each other in the outlets of the internal air discharge path (A) and the liquid introduction path (B, C) collides, the outlet of the internal air discharge path (A) and the outlet of the liquid introduction path (B, C) being disposed on the inside of a nozzle in relation to the nozzle discharge opening (18), and the impact member (22) being disposed between the outlets of the internal air discharge path (A) and the liquid introduction path (B, C) and the nozzle discharge opening (18). With the above-described configuration, the gas and the liquid may be highly efficiently mixed with each other, and the generation of water droplets of a liquid may be suppressed, thereby producing finer particles.