SU1211516A1 - Burner - Google Patents

Description

"one

The invention relates to devices in which gaseous fuel is mixed with air before being fed into the combustion space, and can be used to heat blanks in mechanical engineering, for example, in mechanized soldering processes.

The aim of the invention is to increase the speed, uniformity of heating and economy.

Fig, 1 shows the proposed burner, a longitudinal section; in fig. 2 is a section A-A in FIG. 1; in fig. 3 is a section BB in FIG. 2

The burner contains a casing 1, divided by a partition 2 into a distribution chamber 3, connected to the mixer 4 with air 5 and fuel 6 inlets, and a crushing chamber 7 connected to the injector 8 with an active nozzle 9 of compressed air, a grid 10 with openings 11 mounted at the outlet of the dispensing chamber 7 3, the partition 2 being provided with a nozzle device in the form of nozzles 12 with tips 13 inserted into holes 11 of the grid 10 with annular gaps 14. Nozzles 12 with nozzles 13 of the nozzle device are enclosed in tubular elements 15 and sa and the burner further comprises handing out the partition 16 with apertures 17, mounted in the housing 1 behind the bars 10 downstream, in the openings 17 which put a stake. pipe gap 18 tubular elements 15, and the second injector 19 with an active nozzle 20 of compressed air, connected through the windows 21 in the casing 1

16 2

to the cavity between the grate 10 and the dispensing partition 16, with the actin's nozzle 20 of the second injector 19 oriented in the direction opposite to the active nozzle 9 of the injector 8 of the dispensing chamber 7.

The burner works as follows.

In the mixer 4 through the pipe 6 serves gas 5 and through the pipe 5 - compressed air, injecting the primary air. The gas-air mixture is injected from the mixer 4 into the pipes 12 of the partition 2, from which it flows through the conical tips 13. Compressed air is also supplied to the nozzle 9 of the injector 8, which injects into the casing 1 of the secondary air. The air flows through the annular gaps 14 formed by the tubular elements 15 and the pipes 12, and enters at an angle into each jet of the gas-air mixture. The mixture at the outlet of the nozzles 13 ignites and, mixing with the secondary air, burns. At the exit of the burner, a system of high-speed, short, steady flares is formed, aimed at the heated surface. blanks. Spent hot combustion products are sucked through annular gaps 18 by means of an injector 19 connected to the casing 1 through a window 21 into the cavity between the grate 10 and the dispensing partition 16, in which heat passes through the walls of the pipes 15 and then Drainage to the chimney.

Compression

vozun

Fmz

Claims (1)

A BURNER containing a casing, divided by a partition into a distribution chamber connected to a mixer with air and fuel nozzles, and a distribution chamber connected to an injector with an active compressed air nozzle, a grill with holes installed at the outlet of the distribution chamber, the partition being equipped with a nozzle apparatus in the form of nozzles with tips inserted into the holes of the grating with annular gaps, characterized in that, in order to increase speed, uniformity of heating and economy, nozzles with a tip the nozzle apparatus is enclosed in tubular elements fixed in the holes of the grate, and the burner additionally contains a distributing partition with holes installed in the casing behind the grate along the flow, into the holes of which the specified tubular elements are introduced with annular gaps, and a second injector with an active nozzle of compressed air connected through windows in the casing to the cavity between the grate and the distributing partition, the active nozzle of the second. the injector is oriented in the opposite direction to the active nozzle of the injector of the dispensing chamber.