Method of and apparatus for burning liquid and/or solid fuels in pulverized form
AssigneeStubinen Utveckling AB
InventorKurt Skoog
Life of this patent
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Abstract
A method of and an apparatus for burning liquid and/or solid fuels, especially coal or the like, in pulverized form, the latter either in dry condition or mixed with a carrier liquid such as water and/or oil to form an emulsion being introduced together with the fuel into a combustion chamber to create a spray cone which opens approximately conically, said spray cone being bounded by an external, optionally rotating flow of air. In order to form minute fuel particles immediately downstream of the fuel inlet, the latter is constituted by a central port which is defined by a continuous knife edge. Furthermore, an approximately radially directed air inlet port is associated with said central port on the side remote from the combustion chamber.
Claims13
A method of burning a liquid fuel, said method comprising the steps of:
- providing a central fuel inlet port into a combustion chamber, said port being defined by a continuous knife edge with a triangular cross section and being continuously surrounded by a gas and/or air inlet portion;
- providing a plurality of air inlets ports radially disposed along a side of said knife edge remote from the combustion chamber, said air inlet ports extending along said side of the knife edge;
- introducing the fuel in admixture with compressed air into a combustion chamber via a knife edge so as to be spontaneously fanned out to create a spray cone which opens approximately conically, said spray cone including the fuel in admixture with compressed air being bounded by an external, optionally rotating flow of air.
An apparatus for burning liquid fuels introduced into a combustion chamber, said apparatus comprising:
- a burning fuel inlet central port opening into the combustion chamber through which the fuel can be led into the combustion chamber, said port being defined by a continuous knife edge with a triangular cross section and being concentrically surrounded by a gas and/or air inlet portion;
- a plurality of air inlet ports being approximately evenly distributed about the circumference of the knife edge communicating with each other via an annular passageway and being in fluid communication with a preferably variable source of compressed air via said gas and/or air inlet portion.
Dependencies are inferred from the claim text.