SU805004A1 - Burner device for burning liquid fuel - Google Patents

Description

(54) BURNER UNIT FOR LIQUID FUEL BURNING

The invention relates to burner devices that are used predominantly for small technological equipment heated by liquid fuel (camp stoves, stoves, heating furnaces, etc.) It is known a burner for burning liquid fuel containing a main burner made in the form of an injection mixer with outlet nozzles and a V-shaped inlet evaporator connected via a regulating valve to the fuel source, as well as a starting tubular burner installed between the branches of the V The main burner evaporator 1. The disadvantages of this burner are the need to use a special starting fuel from an autonomous source and the insufficient depth of heat load control, because only the main burner is controlled within narrow limits, the burner does not operate in standby mode. - increasing the convenience of operation and expanding the limits of regulation. It is achieved by the fact that it is equipped with a starting combustion chamber with a fire nozzle, 8 of which is placed n additional es) rer connected to a further injection nozzle mixer posts BL during the startup burner nozzle and fired, and the additional evaporator at the inlet communicates with the same fuel source as the main burner evaporator. FIG. 1 shows a variant of the burner, side view; in fig. 2 the same, vvd in front. The device contains a main burner, in the inlet of the injection mixer 1 with nozzle 2, distribution chamber 3 with firing nozzles at outlet 4 and a V-shaped evaporator 5 connected via a regulating valve 6 to the fuel source, as well as to the nozzle 2 of the main burner. In addition, the device contains a starting tube burner 7, provided with an additional injection

a mixer 8 with a nozzle 9 connected to an additional evaporator 10 placed in a starting combustion chamber 11 with a fire nozzle 12, the fire nozzle 12 communicating with the starting burner 7 channel 13. In the combustion chamber a wick 14 is placed, and the additional evaporator 10 and the evaporator 5 are main the burners are connected to the same fuel line 15 by means of adjustment in 1 types 16 and 6, respectively. The firing nozzles 4 are equipped with gates 17.

The operation of the proposed device proceeds in a retarding manner.

Before ignition, the valve 16 is slightly opened and the wick 14 is moistened with liquid fuel, then the valve 16 is closed and the wick 14 is ignited. When igniting, the liquid fuel under pressure from the fuel line 15 flows through the valve 16 into the additional evaporator 10 heated by the flame from the wick 14 and after it passes , in the form of superheated vapors enters the fuel nozzle 9. In the fuel nozzle 9, the potential energy of the fuel vapor passes into the kinetic energy of the jet. Upon leaving the fuel nozzle 9, the stream of condensable fuel vapor ejects air and is converted into an additional fuel-fuel-air mixture in an additional injection mixer 8. From the mixer 8, the mixture enters the starting burner 7, at the outlet of which burns, heating the V-shaped evaporator 5. Some of the topological mixture of the starting burner 7 enters the bottom 13 and the fire nozzle 12 enters the lower part of the starting burner 11, where it burns, providing heating to the evaporator 10 after the wick 14 is extinguished. After the evaporator 5 is warming up, the shut-off and control valve 6 is opened, and the liquid fuel starts to flow into the heated evaporator 5, turning into steam in it. The jet of vaporized liquid fuel leaving the fuel nozzle 2 ejects all the air necessary for combustion and in mixer 1 turns B into a fuel-air mixture, which is similar in composition to stoichiometric. From the heater 1, the air-fuel mixture enters the distribution chamber 3 and, at the exit of the fire nozzles 4, is ignited from the flame of the starting burner 7. After the starting burner 7 is turned off, the evaporator 5 is heated due to the combustion of the air-fuel mixture coming out of the distribution chamber 3. complete shutdown of the burner fire nozzles 4 is made by valves 17. The minimum heat load of the burner is ensured when the starting burner is working and the evaporator is turned off 5.

Using the proposed device

in comparison with the known ones, it is possible to carry out accelerated ignition without soot emission on the surfaces of the burner device and without the use of a special starting fuel.

Claims (1)

Invention Formula A burner for burning liquid fuel containing a main burner made in the form of an injection mix. G1 with firing nozzles at the outlet and a V-shaped evaporator at the inlet, connected through a control valve to the fuel source, as well as a starting tubular burner installed between the V branches -General evaporator of the main burner, characterized in that, in order to increase the ease of operation and expansion of the regulation limits, it is equipped with a start-up combustion chamber with a fire chamber, in which an additional ADDITIONAL evaporator connected to a further injection nozzle mixer Reported at the output of the startup burner and ognevlm nozzle, wherein the additional evaporator at the inlet communicates with the same SOURCE SHKOM 1op.ch1 "wa that the main burner and the evaporator. Sources of information taken into account in the examination 1. USSR Author's Certificate No. 536358 Cl. F 23 D 5/04, 1972.