Abstract:
A blower burner is provided for a boiler heated with fluid fuels with a blower casing, which incorporates on one side the blower with the attached drive motor and where the fire tube of the burner comes out on the other side. The motor and the fire tube form protruding parts on opposite sides of the blower housing. The rear side of the fire tube protrudes beyond the side of the casing disposed toward the drive motor and the rear side of the fire tube protrudes into a cover extension attachment of the blower casing. The burner is provided with a pressure controller, where the air pressure inside of the fire tube element is measured by the input sensor signal and where the blower speed is the variable controlled by the pressure controller. Furthermore, a sound absorbing means is provided for the blower burner.
Abstract:
A low pressure burner capable of generating a relatively long narrow flame is disclosed. A rotationally symmetric chamber is open at each end. Air is forced through the chamber at low pressure, generally no greater than about 0.3 lbs. per square inch above ambient. An atomizer is located in the chamber and expels a combustible mixture out through the downstream end of the chamber. The mixture expelled by the atomizer of the present invention has a distribution which is not rotationally symmetric about the chamber axis. The atomizer utilizes low pressure air provided at no greater than about 4.5 lbs. per square inch above ambient. A flame throat is located at the downstream end of the chamber, and includes at least two axially spaced steps to induce and control eddy formation in the mixture. The nonsymmetric mixture distribution and the multistep chamber combine to provide a long, narrow, stable flame in the throat at relatively low inlet air pressures.
Abstract:
AN OIL OR GAS BURNER HAS A CASING FORMED BY A LOWER CASING MEMBER AND A COVER PLATE FORMING AN ELONGATED CASING WITH ROUNDED ENDS.. A BLOWER ROTOR IS LOCATED IN AN OPENING IN ONE OF THE ENDS, THE CASING WALL ADJACENT THE OPENING FORMING A GUIDE PLATE AT THE INTAKE SIDE OF THE ROTOR. THE ANGLE BETWEEN THE TANGENT TO THE CASING WALL AT THE BEGINNING OF THE GUIDE PLATE AND THE TANGENT TO THE CASING WALL AT THE OTHER END OF THE ROUNDED END PORTION IS LESS THAN 90*, PREFERABLY 30*-60*. THERE IS PROVIDED AT THE OTHER SIDE OF THE ROTOR FROM THE GUIDE PLATE, WHERE THE ROTOR IS SLIGHTLY SPACED FROM THE LONGITUDINAL WALL OF THE CASING, A VORTEX BAFFLE-PLATE WHICH TAPERS IN CROSS-SECTION TOWARDS THE PERPHERY OF THE ROTOR, AND BETWEEN WHICH AND THE END PORTION OF THE LONGITUDINAL WALL ONE OR MORE PASSAGES ARE FORMED THROUGH WHICH SOME OF THE AIR FED BY THE ROTOR CAN BE RETURNED FROM THE PRESSURE-SIDE TO THE SUCTION-SIDE.
Abstract:
1. AN OIL BURNER UNIT CONSISTING OF A BURNER HEAD AND, CONNECTED INTEGRAL THEREWITH, A COMPRESSOR AND A DRIVE MOTOR IN END TO END RELATION, MEANS DEFINING A NOZZLE RECESS IN SAID HEAD AND, IN CONNECTION THEREWITH, A FUEL PASSAGE, A LOW PRESSURE ASPIRING NOZZLE HAVING A PORTION ANCHORED IN SAID HEAD TO FORM A FLOW PASSAGE THEREABOUT IN SAID NOZZLE RECESS AND HAVE ONE END THEREOF COMMUNICATE WITH SAID FUEL PASSAGE, MEANS DEFINING A FURTHER PASSAGE IN SAID HEAD COMMUICATING SAID COMPRESSOR WITH SAID FLOW PASSAGE WHEREBY ON DRIVE OF SAID MOTOR, AIR WILL FLOW UNDER PRESSURE TO SWIRL IN SAID RECESS ABOUT SAID NOZZLE, SAID NOZZLE HAVING ASPIRATING PASSAGES WHICH OPEN AT ONE END TO RECEIVE THE SWIRLING AIR AND DELIVER IT AT A HIGH VELOCITY TO THE INTERIOR OF SAID NOZZLE WHEREBY TO SUCK FUEL FROM SAID FUEL PASSAGE TO EXIT THEREWITH FROM SAID NOZZLE AND FLOW REGULATOR MEANS INTERPOSED TO NORMALLY BLOCK THE FLOW OF FUEL THROUGH SAID FUEL PASSAGE, SAID REGULATOR MEANS HAVING TWO CHAMBERS AND A DIAPHRAGM FORMING A WALL THEREBETWEEN, ONE OF SAID CHAMBERS HAVING AN INLET AND AN OUTLET INTERPOSED IN RESPECT TO SAID FUEL PASSAGE, THE OTHER SAID CHAMBERS HAVING A VENT AND MEANS INCLUDED IN SAID ONE CHAMBER OPERATIVE TO BLOCK THE FLOW OF FUEL THROUGH SAID FUEL PASSAGE EXCEPT ON THE OCCURENCE OF A HIGH VELOCITY FLOW OF AIR TO AND THROUGH SAID NOZZLE.
Abstract:
The flash burner utilizes the total thermal efficiency of the fuel to develop heat. The fuel is kept under high pressure and heated beyond the boiling point. This superheated liquid fuel which is under pressure, enters into the low-pressure area of the combustion channels, where it flashes into vapor and prompt mixing of this vapor with air causes complete burning and heat production. The device has the advantages of great fuel economy, no likelihood of causing air pollution, and low maintenance.