摘要:
A two phase fuel oil atomizer utilizing a secondary media such as high pressure steam or air to assist in the atomization of heavy fuel oil, while reducing NOx and other polluting emissions. The fuel oil atomizer comprises a mixing plate and a sprayer plate which are configured to discharge atomized fuel oil at varying spray angles in order to provide staging of the atomized fuel as it exits the sprayer plate with the surrounding combustion chamber air to provide a fuel/air ratio that is appropriately rich and lean in order to allow lower flame temperatures. NOx generation is accordingly reduced at the lower flame temperatures. With atomized fuel droplet size small enough to enable rapid fuel evaporation and complete combustion, low CO, opacity and particulate generation are achieved with minimum excess oxygen.
摘要:
Atomizing devices are provided that form droplets through the Rayleigh breakup mechanism. Various embodiments include one or more of the following features. Liquid orifices form jets of liquid that form droplets. Gas orifices provide gas coflow that inhibits coalescence of the droplets. The liquid orifices can have non-circular cross-sectional shapes to promote Rayleigh breakup. Fluidic oscillators can also be provided to promote Rayleigh breakup. Supply networks are provided to supply gas and liquid to the gas and liquid orifices, respectively.
摘要:
Atomizing devices are provided that form droplets through the Rayleigh breakup mechanism. Various embodiments include one or more of the following features. Liquid orifices form jets of liquid that form droplets. Gas orifices provide gas coflow that inhibits coalescence of the droplets. The liquid orifices can have non-circular cross-sectional shapes to promote Rayleigh breakup. Fluidic oscillators can also be provided to promote Rayleigh breakup. Supply networks are provided to supply gas and liquid to the gas and liquid orifices, respectively.
摘要:
A fluid bed processing system with a spraying apparatus in accordance with one embodiment of the present invention includes an expansion chamber and at least one spraying apparatus which extends into the expansion chamber. The spraying apparatus has a plurality of single nozzles which are spaced along the spraying apparatus and has at least one fluid passage connected to each of the single nozzles.
摘要:
An airblast fuel injector assembly for use in conjunction with a gas turbine is disclosed which includes an elongated tubular body having first and second concentric tubes separated from one another by a helical spacer wire so as to define a fuel passage therebetween. The injector assembly is situated such that fuel flow exiting the fuel passage is intersected by an air flow at a predetermined angle of incidence so as to atomize the fuel flow.