RU2609918C2 - Burner device for production of thermal and electric energy - Google Patents

Abstract

FIELD: energy.

SUBSTANCE: invention relates to power engineering. Burner device for production of heat and electric energy comprises a vertical combustion chamber of liquid fuel, fuel bowl with a screen under a cover, fire chamber with a system for extracting combustion products. Main portion of air is supplied into the combustion chamber through circular slits between the cover of the fuel bowl and the screen; heat carrier for heating rooms and reservoirs with water for household needs is located between the bodies of the fire hamber and boiler; fuel bowl is detachable and attached to the fixed cover; fuel is supplied into the combustion chamber from the fuel bowl through slits at the base and openings; there is an opening to ignite flame above the cover of the fuel bow; there is a second combustion chamber housing a thermoelectric generator, which converts thermal energy into electrical energy, above the circular system for feeding air into the fire chamber.

EFFECT: invention provides stable combustion of waste oils and other heavy hydrocarbons and reduce emissions of combustion products into the atmosphere.

1 cl, 1 dwg

Description

The invention relates to the fields of heat engineering and electrical engineering, can be used in a combined device that produces thermal and electrical energy. The device is a low-power power plant, contains a vertical cylindrical liquid fuel combustion chamber, a fuel bowl with a screen under the cover, a fire chamber with a system for extracting combustion products and a second combustion chamber with a thermoelectric generator that converts thermal energy into electrical energy, a boiler with a coolant, and a system for extracting products combustion.

Known burner device for burning liquid fuel (RU No. 2100698, CL F23C 11/04). The device comprises a cylindrical combustion chamber, on the side surface of which there are openings and slots for air intake for burning fuel, a pipeline for supplying fuel to the combustion chamber. The design of the device determines low efficiency.

A device for the production of thermal and electrical energy (RU No. 2224190 C1). The combined device contains a power frame, a fossil fuel burner, heat receivers, thermoelectric batteries, a heat sink system. The device is structurally complex and time-consuming to manufacture, contains significant energy losses.

Known burner heat generator, selected as a prototype (RU 139611 U1). The device comprises a vertical cylindrical combustion chamber for liquid fuel, a fuel bowl with a screen under the cover, a fire chamber with a system for extracting combustion products, a boiler for heating the coolant. The device is intended for the disposal of waste oils with associated heating of premises, heating of water tanks for household needs. Common essential features of the mentioned and proposed devices are the evaporative method of burning fuel, cylindrical combustion chambers of liquid fuel, air supply to the combustion chamber and the heat chamber is provided through circular slots and a system of holes. A distinctive feature of the proposed burner device is the presence of a second combustion chamber and a thermoelectric generator that converts thermal energy into electrical energy.

An object of the invention is to provide a combined liquid fuel burner device for the production of thermal and electric energy.

The technical result is achieved by the proposed combined burner device for the simultaneous generation of thermal and electrical energy. The burner device contains a vertical cylindrical chamber for burning liquid fuel with a fuel bowl and a screen under the cover of the fuel bowl, a heat chamber with a second combustion chamber for a thermoelectric generator that converts thermal energy into electrical energy, a boiler with a heat carrier for heating rooms and water tanks for household needs, an exhaust system combustion products. The main part of the air enters the combustion chamber from all sides in the radial direction through circular slots under the fuel cap. The fuel bowl is removable, attached to the fixed cover, at the base of the combustion chamber there are openings and openings for fuel to enter the combustion chamber from the fuel bowl, above the cover there is an opening for filling the combustion chamber with fuel and igniting the torch. The heat chamber has a recirculation zone, a circular system of openings for air intake, above which there is a second combustion chamber with a thermoelectric generator (TEG) that converts thermal energy into electrical energy. TEG output electric power is 50 W (4.5 amperes), DC output voltage is 12 volts, AC 220 volts, thermal power can vary up to 35 kW., It operates on the basis of natural traction. With a fuel system with a fuel tank, it can operate continuously.

A general view of the burner device with thermoelectric generator 12 is shown in FIG. 1. The burner device of the thermoelectric generator contains a vertical cylindrical liquid fuel combustion chamber 1, a fuel bowl 2 for liquid fuel, a screen 3 mounted at the top of the fuel bowl 2, circular slots 4 between the cover 6 and the screen 3 for air to enter the combustion chamber 1, heat a chamber 5 with a second combustion chamber 13 and a thermoelectric generator 12, an exhaust system 8, a boiler 7 with a coolant, a diffuser 14, a coolant fitting 17.

The burner device operates as follows. The fuel bowl 2 and the combustion chamber 1 are filled with fuel to the top of the fuel bowl 2 and the screen 3 with an oil can through the hole 11 or from a fuel system (not shown). The torch of a portable gas burner with a piezoelectric element (for example, type "Fenix KW-707"), directed into the hole 11 on the fuel surface, activates the combustion of a mixture of fuel vapor and air. In the absence of a portable burner, the torch is ignited with a igniter with a fabric wick, impregnated with fuel, in the combustion chamber 1 through the hole 11. The ignitor is ignited with a household lighter and placed in the combustion chamber through the hole 11 above the fuel surface until the flame ignites. Fuel combustion is controlled through openings 11, 10 and circular slots 4, which is accompanied by a characteristic noise. After ignition of the torch, hole 11 must be closed with a special stopper. The amount of air supplied to the combustion chamber for stable combustion of the fuel should be provided with a coefficient of excess air 1.20-1.65. Combustion of fuel simultaneously carries out heating of the heat carrier for heating rooms and water tanks for household needs. The heat chamber 5 with a circular system of openings 10 for air intake contains a second combustion chamber 13 with a thermoelectric generator 12 that converts thermal energy into electrical energy. The maximum temperature for normal operation of the heat generator 12 should be no more than 450 degrees, which is achieved by the presence of a protective shield 22. The thermoelectric generator 12 contains thermogenerator modules (not shown) that generate electricity, fans 16 for cooling radiators (powered by TEG), charging and stabilization unit 18 with a car connector 15 for charging a 12 volt battery, connecting low-power consumers of electricity, an inverter with a power of 60-75 watts to produce alternating current 220 volts in total 50 watt power consumption (not shown). The thermoelectric generator 12 is installed on the plate 23 of the combustion chamber 13, fastened with screws 21. The fuel bowl 2 is removable attached to the fixed cover 6 with nuts 9. The fuel from the combustion chamber 1 enters the fuel bowl 2 through the openings 19 and 20. The design of the device eliminates the use of or discharge devices such as fans, pumps, etc., the thermal power of the base model of the thermogenerator is 10 kW, the efficiency is about 90%, fuel consumption is 0.1 l / kW.

The proposed device is a thermoelectric generator that generates a thermal power of up to 35 kW and electric energy with a total power of 50 watts (4.5 amperes) with an operating voltage of 12 volts DC and 220 volts AC. Emissions of combustion products into the atmosphere below the MPC according to GOST. The main materials for the manufacture of the device are steel pipes and sheets, standard components.

Claims (1)

A burner device for the production of thermal and electric energy containing a vertical combustion chamber for liquid fuel, a fuel bowl with a screen under the cover, a heat chamber with a system for extracting combustion products, characterized in that the bulk of the air enters the combustion chamber through circular slots between the cover of the fuel bowl and screen, the coolant for heating rooms and water tanks for household needs is located between the cases of the fire chamber and the boiler, the fuel bowl is removable, attached to a fixed cover, t the fuel enters the combustion chamber from the fuel cup through openings at the base and the hole, there is a hole above the fuel cap for igniting the torch, above the circular air supply system to the heat chamber there is a second combustion chamber with a thermoelectric generator that converts thermal energy into electrical energy.