| 摘要 |
A spray nozzle (1) that uses a spray medium to spray and burn a liquid fuel, wherein a fluid mixture (8) is formed by mixing a spray fluid (2) and a spray medium (3) in first convergence sections (91) of the spray nozzle, with this fluid mixture (8) passing through fluid mixture flow paths (9, 10) and the opposing flows of this fluid mixture (8) colliding in a second convergence section (92) near an outlet hole (11), and being sprayed from the outlet hole (11). The flow path cross-sectional area of the fluid mixture flow paths (9, 10) is formed so as to be narrower near the outlet hole (11), thereby increasing the flow speed of the fluid mixture (8) and promoting the atomization of the fluid mixture (8) due to the collision. By means of this spray nozzle the combustion reaction can be promoted, unburned component, soot, and carbon monoxide at the outlet of the combustion device can be reduced, and combustion efficiency can be improved. Furthermore, the consumption of oxygen is promoted by hastening the combustion reaction, thereby suppressing the generation of nitrogen oxides. |
