SU119291A1 - Burner for burning liquid fuel - Google Patents

Description

In the known burners for burning liquid fuel with preliminary evaporation of the latter and mixing its vapors with air, containing an evaporator with thermal screens and a jet for burning the fuel-air mixture, the fuel during its evaporation is under excessive pressure at high temperature for a long time, subjected to thermal decomposition during evaporation which reduces the burning efficiency.

The peculiarity of the proposed burner is that it is made of two opposed, in a cylindrical evaporator, conjugated on large bases m truncated cones (inlet and outlet), one of which is equipped with a pipe for injecting fuel vapor from the evaporator into the burner and a diffuser with holes for mixing fuel vapor with air entering the burner through an air swirler from a blower fan. A burner chamber with a feed tube was used in the burner to supply fuel to the evaporator.

This embodiment of the burner simplifies its design and increases the combustion efficiency, since the fuel during the evaporation process is not subjected to thermal decomposition and to the effect of excessive pressure and high temperatures.

The drawing shows a longitudinal section of the burner.

The burner consists of an inlet / and outlet 1 truncated cones, connected by welding and placed in a cylindrical evaporator 5, the cylindrical pipe 4 is welded to the left cover, and the pipe 5 is welded to the upper part to supply air to the burner. The inlet truncated cone / is provided with a nozzle 6 for introducing toner vapors from the evaporator 3 to the burner and a diffuser 7 with openings 8 for mixing fuel vapors with air entering the burner through the swirler 9 from the blower fan. Screens 10 and / U on a truncated cone / are designed to change the temperature in the left part of the evaporator 3, depending on the type of fuel used.

No. 119291-2 -

The fuel from the tank (not shown in the drawing) enters through the pipe 12 into the evaporator 3, where it is converted into steam due to the heating of the fuel with the heat of the plume developed in the cones 1 and 2.

When the burner is operated outside the combustion chamber, the initial heating of the evaporator is carried out using a torch placed in the jokes / and 2, and when the burner is operated in a closed combustion chamber, the heating of the evaporator 5 is performed using the nozzle 13 on gasoline or using the pilot chamber 14, where rag dipped in diesel fuel. This opens valve 15. The quality and quantity of the working mixture is regulated by means of a diffuser 7 and an air damper controlled by a lever 16 on the air inlet 5. The amount of fuel flowing from the tank to the burner is controlled by a float chamber (not shown in the drawing).

Subject invention

Claims (2)

1. A burner for burning liquid fuel with preliminary evaporation of the latter and moving its vapor with air, containing an evaporator with thermal screens and a jet for burning the fuel-air mixture, characterized in that, in order to simplify the design and increase its efficiency, it is made of two roomsHieHHbix a cylindrical evaporator of large truncated cones (inlet and outlet), one of which is equipped with a nozzle for introducing fuel vapor from the evaporator into the burner and a diffuser with holes for fuel vapor with air entering the burner through the swirler from the blower fan. 2. In the burner according to claim 1, use a kindling chamber with a feed tube to supply fuel to the evaporator.