SU1333956A1 - Vortex combustion chamber - Google Patents

Description

eleven

The invention relates to heat and energy production and can be used to prepare a heat transfer medium in both dry and high moisture oxidizing media.

The aim of the invention is to improve the economy by burning fuel in oxidizing environments with high moisture content,

Figure 1 schematically shows the combustion chamber, a general view; figure 2 - section aa in figure 1; on fig.Z - section BB in figure 1; figure 4 - section bb In figure 1.

The vortex combustion chamber contains a cylindrical body 1 with a confused exhaust nozzle 2, divided into two compartments 3 and 4 by a pinch formed by two annular screens 5 and 6 in the form of truncated cones, between which radially mounted fuel atomizers 7. Each compartment 3 and 4 is equipped with a tangential pipe 8 and 9, respectively, a supply of air, as well as a blade vortex 10 and 11.

Screens 5 and 6 of clamping are turned with large bases towards the corresponding compartment 3 and 4, and their smaller bases are fastened together with an annular spacer 12, in which the output sections of the splitters 7 are fixed.

The combustion chamber is equipped with a movable igniter 13.

The vortex combustion chamber works in the following way.

Through radial nozzles 7, fuel oil is supplied to the zone of the annular reverse current. At the same time through the pipe 8 into the compartment 3 serves a dry oxidizer, and through the pipe 9 into the compartment 4 - a wet oxidizer. Then, the dry oxidant enters the blade blade of the 10 hrittel, and the wet oxidizer enters the swirler 11. The passage through the interscapular channels of the swirlers, the dry and wet oxidizers twist and form inside the chambers characteristic cyclonic flow patterns that move to the exhaust nozzle 2. The swirled dry flow oxides339562

The body rushes into the pinch opening and narrows, thereby increasing its speed of movement. As a result, an in- ter in the overpressure opening occurs. strong turbulent mixing of dry oxidizer with fuel. The oxidant-enriched fuel was fused with a igniter 13, and then an igniter

10 13 are removed from the ignition zone. Next, the fuel mixture in the form of a burning tow enters the cavity of the swirler 11. At the same time, the toroidal vortices formed near the end walls of the mode keep the burning mixture in the zone of the reverse current and prevent the droplets of fuel from falling on the walls of the overpress and swirlers 10 and 11. The main flow of the swirled coolant covers the burning mixture and turns it on. This creates favorable conditions for intense exposure to the flame in a moist, oxidizing environment.

25

The use of a wet oxidizer reduces the temperature level in the combustion zone, which significantly reduces the content of nitrogen oxides in products

/ Jq burnout

Claims (1)

Invention Formula 35 40 A vortex combustion chamber containing a cylindrical body with a confused air nozzle, divided into two compartments by a pinch formed by two annular screens in the form of truncated cones, between which radially installed fuel diffusers, each compartment equipped with a tangential air inlet and a blade swirl, This is due to the fact that, in order to increase the efficiency of fuel combustion in oxidative environments with high moisture content, the pinch screens face large bases respective compartment, and their lower base secured to one another by means of an annular spacer, wherein the outlet sections are fixed nozzles. 45 L Bs -9 eleven Vlatne oxidizer fpue. 2 H Fi. ff Compiled by A. Shikov Editor L. Veselovska Tehred V. Kadar. . . Proofreader M. Demchik Order 3947/36 Circulation 494Subscribe VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 fpus. 3 eight j: yxou oxidize - / //