SU1455128A1 - Method of burning up residual oil - Google Patents

Abstract

The invention relates to energy, can be used to burn fuel oil and any other liquid fuels in different fuel-burning devices and reduces the content of nitrogen oxides in combustion products. Fuel oil is fed to the furnace 1, which has a cyclone burner 2, via fuel line 3, made in the form of two branches 4 and 5, the first of which is connected to the nozzle 6 for axial feed and the second to the nozzle 7 for tangential flow. The nozzle 6 is located in the channel 9 of the axial supply of flue gases, and the nozzle 7 - in the channel 8 of the tangential air supply. Part of the fuel oil is served together with the air tangentially, and the other part - axially into the center of the annular stream of flue gases. The axial part of the fuel oil evaporates under the action of combustible flue gases and burns in the furnace after mixing with secondary air, which significantly reduces the content of nitrogen oxides in the combustion products, 2 sludge. a (L

Description

A-l

6 Z

FIG. 2

editor A.Lezhnina

Compiled by M.Vatsuro

Tehred L. Oliynyk Proofreader O. Kravtsova

Order 7437/44

Circulation 488

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5

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Claims (1)

Claim A method of burning fuel oil by co-feeding it with air in a ratio less than stoichiometric by tangential tangential flows with the formation of a vortex combustion zone and axial supply of recirculation gases to this zone, characterized in that, in order to reduce the content of nitrogen oxides in the combustion products, part of the fuel oil they are preliminarily diverted and fed along the axis of the vortex combustion zone together with recirculation gases supplied by an annular stream around the axial flow of a part of the fuel oil.