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Steam blast jet type burner

In blast jet type burner oil is atomized by spraying it into the path of a high pressure steam jet or air jet, steam is used generally and compressed air is used in the start up. Steam is expanded in a convergent divergent nozzle where its pressure energy is converted into kinetic energy, resulting in a high velocity jet of steam, oil is sprayed on to this path and will get atomized.the nozzles are tangential to give a rotary motion to the atomized fuel so that a rotating cone of fine fuel particles is obtained. high turn down ratio of 20:1 is available. safety valves are provided to shut of steam and fuel when it is being removed. 
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