Facts worth knowing about Oil nozzles - Danfoss.com

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What must be done to the oil to make it burnEven though oil is rightly regarded as inflammable, it cannot burn in itsliquid state, it must first be transformed into vapour.Since oil can only vapourize from its surface, it is necessary to create aslarge an oil surface area as possible. If the oil is transformed into vapourquickly the chances of clean and effective combustion are increased. If theoil in liquid form is forced through a nozzle with a suitable pressure it willburst into an astronomical number of small drops which, on becomingmixed with the air from the combustion head, will form an oil mist ofuniform consistency. The total surface area of all these droplets is very largeand it is this area the oil vaporizes from. It is in this way the oil is preparedfor combustion, by first atomizing it through an oil nozzle. To betterunderstand this process an example can be given: The amount of oil sentthrough a Danfoss 0.50 USgal/h oil nozzle in one hour is transformed intoabout 40,000,000,000 microscopic drops of oil which provide the veryextensive evaporating surface needed for clean and effective combustion– the kind of performance demanding a nozzle of high quality and muchattention to the way the nozzle is handled.8
But how does the combustion itself take place?The main ingredients of oil are: carbon andhydrogenAir contains:oxygen andnitrogenWhen oil vapour mixes with the oxygen in the air, in the right proportions,the mixture will burn on ignition and generate heat. At first sight, therewould seem to be few big problems involved in burning a little oil, but thereis more to it than that. The need is for stability, cleanliness and economy; inother words, the oil must be burned with as little excess air as possiblewithout producing soot. To get oil to burn like this assumes, among otherthings, a correct choice of oil nozzle and attention to the way the nozzle ishandled.HeatFlue gasOxygenNitrogenCarbonHydrogen9
Page 1: Facts worth knowing aboutOil nozzle
Page 5 and 6: Oil nozzles and the complete oil-bu
Page 7 and 8: What has a Danfoss oil nozzle to of
Page 9: How does a Danfoss oil nozzle work?
Page 13 and 14: What effect has atomizing pressure?
Page 15 and 16: What effect has air supply on the o
Page 17 and 18: Where must the oil nozzle be locate
Page 19 and 20: How should an oil nozzle be handled
Page 21 and 22: What do the numbers and letters on
Page 23 and 24: Is it possible to compare oil nozzl
Page 25 and 26: What makes the flame lopsided?A lop
Page 27 and 28: What causes oil coke on the nozzle
Page 29 and 30: What produces a greasy malodorous d
Page 31 and 32: What causes the oil to ignite with
Page 33 and 34: What causes leakage between oil noz
Page 35 and 36: Can the nozzle cause too low a flue
Page 37 and 38: What causes oil and coke to collect
Page 39 and 40: What to do with old, worn out nozzl
Page 41: Nozzle capacitiesNozzle capacities

Facts worth knowing about Oil nozzles - Danfoss.com

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