SU914882A1 - Ignition burner - Google Patents

Description

The invention relates to energy and can be used in various thermal installations for the ignition of the main burners.

Known ignition burner, - - containing supplied at the entrance of the Central fuel pipe injection mixer connected the output opening to the axisymmetric chamber of ignition, equipped with zapalnikom and having an output opening [1].

A disadvantage of the known device is low efficiency, due to the large dimensions.

The purpose of the invention is to increase efficiency by reducing the size.

This goal is achieved by the fact that the ignition chamber and the mixer are located with the mutual mixing of the longitudinal axes by an amount equal to half the difference in the diameters of their exit openings, the ignition chamber being made in the form of a circular cylinder, the diameter of which is not greater than its length and 2–3 times the diameter output opening of the mixer.

2

FIG. 1 shows a burner, a longitudinal section; in fig. 2 - section A — A in FIG. I.

The ignition burner contains an injection mixer 2 provided at the inlet with a central fuel pipe 1 and connected by an outlet opening 3 to an axisymmetric chamber. ignition 4, equipped with a pilot light 5 and having an exit opening 6, and the ignition chamber 4 and

Mixer 2 is located with the mutual mixing of longitudinal axes by an amount B equal to half the difference in diameters of their exit openings 3 and 6, and the ignition chamber 4 is made in the shape of a circular cylinder, the diameter of which is not more than its ⁵ length and exceeds 2-3 times the diameter

output opening 3 mixer 2.

When the burner operates, the fuel enters

along the central fuel pipe of the 1st c. injection mixer 2 where it mixes

20 with air and is sent to the ignition chamber 4, where, thanks to the igniter 5

lights up. The torch is thrown through

exit opening 6 of the ignition chamber 4.

After the occurrence of the torch igniter 5

914882

is turned off, and the stability of combustion is ensured due to the reverse currents arising from the placement of the ignition chamber 4 with eccentricity 8 relative to the mixer 3, equal to half the difference of the diameters of their output openings

3 and 6 and execution of the ignition chamber

4 in the form of a circular cylinder, the diameter of which is not greater than its length and is 2-3 times larger than the diameter of the output opening 3 of the mixer 2.

The application of the proposed ignition burner will significantly improve the efficiency of the burner and reduce its size with high reliability.

Claims (2)

Claim An ignition burner containing an inlet central fuel an injection mixer connected by an outlet opening to an axisymmetric ignition chamber, equipped with a pilot light and having an outlet opening, characterized in that, in order to increase efficiency by reducing the dimensions, the ignition chamber and the mixer are arranged with mutual mixing of the longitudinal axes by half the difference diameters of their exit openings, the ignition chamber being made in the shape of a circular cylinder, the diameter of which is not more than its length and exceeds 2-3 times the diameter of the exit opening of the mixer.