SU1638465A1 - Burner unit - Google Patents

Abstract

This invention relates to burners and can be used in the chemical and energy industries for combustible gases. The purpose of the invention is to reduce the content of nitrogen oxides in combustion products. The device comprises a housing 1 with an air inlet assembly, made in the form of an air flow regulator 2, and an exhaust manifold, made in the form of a radial

Description

The invention relates to burner devices and can be used in the chemical and energy industries for the combustion of combustible gases with a reduced yield of nitrogen oxides.

The purpose of the invention is to reduce the content of nitrogen oxides in combustion products.

FIG. 1 shows a burner, a longitudinal section; in fig. 2 is a view A of FIG. one; in fig. 3 shows a section BB in FIG. one,

The burner device comprises a housing 1 with i inlet1 air supply unit, made in the form of air flow regulator 2, and an output collector made in the form of radial tubes 3 with holes 4, a central tube 5 with a plug 6 and an output collector 7 made in the form of radial tubes bore nozzles

8, in which exhaust pipes are installed

9, a flat disk 10 with holes 11 placed on a diameter smaller than the internal diameter of the pipe 5, and holes 12 placed on a diameter larger than the external diameter of the pipe 5, the injector 13 with the outlet section 14 and the gas nozzle 15, the plug 6 may have holes 16 with exhaust tubes 17.

The burner device operates as follows.

The burner gas is supplied through the nozzle 15, which draws primary air into the injector 13 and directs it to the outlet section 14. Through the holes 11 in the disk 10, part of the gas-air mixture enters the central pipe 5, passes through it and is distributed through the radial nozzles 7 from which the exhaust pipes 9 enters the embrasure of the burner. Part of the mixture comes out of the exhaust pipes 17. Through the openings 12 of the other part of the gas-air mixture enters the annular gap between the housing 1 and the pipe 5, while sucking the air from the flow regulator 2.

 From the housing 1, the gas-air mixture enters the nozzles 3, from which, through the openings 4, expires into the embrasure of the burner. Since this mixture is rich in air, it ignites at a very short distance from the pipes 3, by drawing in a small part of the air flowing between these pipes 3. The air mixture is poorer and the air flowing out of the holes 9 and 17 ignites a very large distance from the air since she needs to suck a large amount of air, besides, already mixed with the products of combustion of the gas-air mixture,

flowing out of the holes 4.

The torch expands, the maximum temperatures sharply fall, and consequently the yield of nitrogen oxides.

Claims (2)

1. A burner device comprising a housing with an inlet air supply unit and an exhaust manifold made in the form of radial nozzles with holes, a central tube installed along the axis of the housing with an annular gap, plugged from the output end and provided with its output collector made in the form of radial nozzles with holes, and discharge pipes, characterized in that, in order to reduce the content of nitrogen oxides in the combustion products, the device further comprises an injector with a gas nozzle adjacent to An air supply unit of the housing, made in the form of an air flow regulator with a flat disk located inside, with openings placed on diameters smaller than the inner diameter and larger outer diameter of the central pipe, while the disk is mounted with one side adjoining the outlet end of the central pipe and the other to the outlet section of the injector, the radial nozzles of the central tube are placed inside the radial nozzles of the housing, the discharge tubes are installed in the openings of the radial nozzles of the central tube and accommodate in the holes of the radial body nozzles with the formation of annular gaps. 2. The device according to claim 1, characterized by the fact that in the plug of the central pipe there are holes with installed exhaust pipes. So-epx . H.