SU756132A1 - Burner apparatus - Google Patents

Description

The invention relates to a burner device for burning liquid fuel in steam boilers in the power, metallurgical and other industries.

Known burner apparatus ezhi- ₅ Hassium liquid fuel, comprising a combustion chamber with channels for feeding air and installed in the nozzle axis of the chamber for supplying liquid fuel [1].

The disadvantage of this device is the low intensity of combustion due to Yu is not enough good mixing of fuel with air.

The closest in technical essence to the invention is a burner device containing a combustion chamber with tangential channels for air supply and a nozzle for supplying liquid fuel installed along the chamber axis [2].

The disadvantages of this device are low combustion efficiency due to poor mixing of fuel with air, and an increased yield of soot and nitrogen oxides. ί

The aim of the present invention is to intensify the combustion process.

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This goal is achieved by the fact that on the inner surface of the combustion chamber there are intermittent screw ribs along the length, and a reflector is additionally installed at the exit of the nozzle.

The drawing schematically shows the described burner.

The burner device contains a combustion chamber 1 with tangential channels 2 for supplying air and a nozzle 3 for supplying liquid fuel.

On the inner surface of the chamber there are intermittent screw ribs 4, and a deflector 5 is installed at the exit of the nozzle 3. The exit from the combustion chamber 1 is connected to the furnace 6 of the steam generator.

The device works as follows.

The mazut emulsion (a mixture of mazut with water) under pressure above 20 atm and a temperature above 200 ° C is fed to the nozzle 3, at the output of which it turns into fog 20 due to a sharp expansion.

Getting on the reflector 5, the mixture is deflected to the walls of the chamber 1, where it occurs

initial mixing it with a stream of air.

Further mixing takes place in

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the process of screw movement of the mixture along discontinuous screw ribs 4, the gaps between which contribute to intense turbulization of the mixture.

This decreases the concentration of soot and nitrogen oxides in the combustion products.

The mixture prepared in the combustion chamber 1 is fed to the furnace 6 of the steam generator, where it is afterburning.

The use of this device will increase the efficiency of the steam generator and reduce the amount of harmful emissions.

Claims (1)

Claim A burner device containing a combustion chamber with tangential air supply channels and a liquid fuel supply nozzle installed along the chamber axis, characterized in that, in order to intensify the combustion process, the inner surface of the combustion chamber is made 5 intermittent screw edges, and on. The outlet from the nozzle is additionally mounted a reflector.