Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F23Combustion devices F23DBURNERS

F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space

F23D11/001spraying nozzle combined with forced draft fan in one unit F23D11/002spraying nozzle arranged within furnace openings F23D11/004for producing radiant heat F23D11/005with combinations of different spraying or vaporising means F23D11/007combination of means covered by sub-groups F23D11/10 and F23D11/24 F23D11/008combination of means covered by sub-groups F23D5/00 and F23D11/00 F23D11/02the combustion space being a chamber substantially at atmospheric pressure F23D11/04the spraying action being obtained by centrifugal action F23D11/06using a horizontal shaft F23D11/08using a vertical shaft F23D11/10the spraying being induced by a gaseous medium F23D11/101medium and fuel meeting before the burner outlet F23D11/102in an internal mixing chamber F23D11/103with means creating a swirl inside the mixing chamber F23D11/104intersecting at a sharp angle F23D11/105at least one of the fluids being submitted to a swirling motion F23D11/106medium and fuel meeting at the burner outlet F23D11/107at least one of both being subjected to a swirling motion F23D11/108medium and fuel intersecting downstream of the burner outlet F23D11/12characterised by the shape or arrangement of the outlets from the nozzle F23D11/14with a single outlet F23D11/16in which an emulsion of water and fuel is sprayed F23D11/18the gaseous medium being water vapour generated at the nozzle F23D11/20the water vapour being superheated F23D11/22the gaseous medium being vaporised fuel F23D11/24by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space F23D11/26with provision for varying the rate at which the fuel is sprayed F23D11/28with flow-back of fuel at the burner F23D11/30with return feed of uncombusted sprayed fuel to reservoir F23D11/32by electrostatic means F23D11/34by ultrasonic means or other kinds of vibrations F23D11/345with vibrating atomiser surfaces F23D11/36Details F23D11/38Nozzles Cleaning devices therefor F23D11/383with swirl means F23D11/386Nozzle cleaning F23D11/40Mixing tubes or chambers Burner heads F23D11/402Mixing chambers downstream of the nozzle F23D11/404Flame tubes F23D11/406Flame stabilising means F23D11/408Flow influencing devices in the air tube F23D11/42Starting devices F23D11/44Preheating devices Vaporising devices F23D11/441Vaporizing devices incorporated with burners F23D11/443heated by the main burner flame F23D11/445the flame and the vaporiser not coming into direct contact F23D11/446heated by an auxiliary flame F23D11/448heated by electrical means F23D11/46Devices on the vaporiser for controlling the feeding of the fuel