A method of burning fuel
The invention relates to fuel combustion in the vibrational mode. A method of burning fuel is fed to the burner with subsequent mixing with air and burning, and the air before supplying the mixture of fuel passed through the Electromechanical generator with rotating flaps that overlap on 3-97% channel air flow from the electric motor rotation speed 1000-6000 mm. revolutions per minute and the frequency of oscillation of the air flow 30-600 Hz. The invention allows to reduce vibration equipment, to improve combustion stability and reduce the cost of fuel combustion. 5 Il.The invention relates to the field of preparation and combustion of fuel (gas, fuel oil and others) in the gas-dynamic mode and can be used for etc.The best known and most used types of fuel combustion in gas-dynamic mode are vibrating and oscillating combustion.During the 50-60-ies of the 20th century were created devices that implement oscillatory combustion with impact on the flow of air-fuel mixture ultrasonic vibrations  and others, the impact of these fluctuations on the process of mixing and combustion of fuel for the market open torch in his separate areas 200-300With  and increase heat transfer from the flame to the wall by 10-30%.The lack of resonance of vibrating systems of combustion is a complex organization of steady vibration mode.Currently in Russia and abroad developed many devices that implement oscillatory combustion, by means of which burn solid, liquid and gaseous fuels. The main physical method, which implements the specified combustion is intermittent oscillatory flow of air into the combustion chamber , pulsed supply of fuel into the chamber through a special injection devices  and intermittent air supply.The use of the positive aspects of vibratory and oscillatory combustion is relevant, but the practical use of these devices is still insufficient, which is associated with a weak knowledge of oscillatory processes and the lack of experimental testing devices .A known method of burning fuel , according to which the oil is fed through a resonant pipes, reactors, carburettor and fuel injector in cell block vibration burning, equipped with an acoustic resonator in which it is mixed with air and burned. Prelector camera works through the waveguide at each other. This ensures the connectivity of the cameras as speakers.Using this method showed that vibration is the number of destruction in the design of the cameras, so further structural refinement.Known another method of burning fuel , we adopted for the prototype. According to this method, the fuel coming out of the burner, down through the two nozzles connected with jet generator of oscillations, the air is mixed with fuel. Alternate expiration of air from the nozzles affects the torch from opposite directions, forcing him to cross on its axis fluctuations. As a result, the torch becomes steady turbulent structure, and oxidation of the fuel particles is more intense and complete that reduces chemical incomplete combustion of the fuel.The disadvantage of the proposed method is a significant increase in noise, increase the pressure oscillations within the combustion chamber and vibration equipment.The objective of the proposed technical solution is to increase the efficiency of fuel combustion - noise reduction, pressure fluctuations within the combustion chamber, vibration equipment is willow, lies in its submission on the burner with subsequent mixing with air and combustion air prior to the mixing with the fuel is passed through Electromechanical air generator (AMWG) c rotary damper, partially overlapping channel the air flow from the electric motor rotation speed when the number of revolutions of the motor (COE) 1000-6000 mm. / minute. The degree of overlap channel air supply (SPKV) rotary dampers ENGG varies in the range 3-97%, and the frequency of oscillation of the air flow (CCVP) - in the range of 30-600 Hz.The degree of activation of the air flow (SAIT) depends on SPKV dampers MMG . At low SPKW - less than 20% SAIT significantly reduced. With increasing SPKV above 80% increases SAIT, but significantly decreases the performance of the installation EMWG.COE torque damper AMWG is 1000-6000 mm. / minute. Reducing COE below 1000 per minute reduces SAIT, and increase choe more than 6000 per minute theoretically and practically possible, but not economically feasible, as it increases the cost of construction ENGG.CCVP is in the range 30-600 Hz and regulated by CAA and rotational flaps ENGG. The maximum efficiency (regardless of the type of fuel combusted) dentistrythe with CKIT 100-200 Hz.In the process ENGG can happen fluctuations of gas in a rotating electromagnetic field (compression, rarefaction of gas and others). Therefore, it may be a heating gas and the activation of its components (oxygen, nitrogen, carbon dioxide, water and other), as well as the formation of water vapor hydrogen peroxide, BUT.2and.OH radicals. As a consequence, the reactivity of the components of the air may rise significantly.The essence of the proposed method is illustrated by examples.Example 1. Functional diagram of the installation for the production of black gravel and asphalt using EPSG factory Yekaterinburg road construction Department "Sverdlovskavtodor", the village Beloyarsky, shown in Fig.1.In this scheme, the fuel oil from the tank 8 by the pump 7 through the fuel line 6 is fed to the burner 2, where it is mixed with air supplied by the fan 5 through ENGG 4 through the duct 3, when the degree of overlap of the channel airflow 3-97% and the number of revolutions of the motor 3000 per minute, and burned. In the drying and mixing drum 1 with the burner 2 is provided drying black gravel, mixing, heating and preparation of asphalt mixtures.The results ol the nutrient consumption of fuel oil in the preparation of asphalt concrete.Example 2. Industrial tests were carried out on steam gas boiler E-1,0-0,9 G-3 in the boiler room of the state production Association "TECH", Ekaterinburg. Setup is shown in Fig.2.According to this scheme, the fan 5 through the gate 9 and ENGG 4 through the duct 3 supplies air to the burner 2, where it is mixed with fuel and burned. Fuel combustion is used to heat a steam boiler 10.The test results are summarized in table 2. As the table shows, with increasing speed ENGG from 2000 to 6000 rpm specific gas consumption of 1 Gcal of thermal energy decreases 1.43-7,27%.Example 3. Industrial tests were carried out in the technological cycle cupola furnace Nizhny Tagil boiler and radiator plant. As AMUG used the device for intensification of combustion of solid fuels in combustion systems with grate combustion  (U.S. Pat. NO. 2149311, 7 F 23 1/16 IN). Setup is shown in Fig.3.In this scheme, the air ventilation system 5 is supplied to the heat exchanger 11, which is heated to the required temperature and then the duct 3 is supplied to the injection nozzles 13 with installed ENGG 4, where it is activated and served in Varenichnaya years).The test results presented in table 3.Data analysis the table shows that when working ENGG achieved growth of melt temperature on average 30-40From the initial (maximum of 70-75With by reducing the viscosity of the melt). The productivity of the furnace is increased by 10% and reduces the specific fuel consumption as per one ton of produced pig iron, and one ton of finished product (5-10%).Example 4. Conducted industrial trials for inclusion AMWG in the technological cycle of mineral wool production. As AMUG used the device described in example 3. According to the scheme of Fig.4, the air fan 5 through the duct 3 through the gate 9 is supplied to AMWG 4, and then in the cupola furnace 16. The results are given in table 4.The table shows that when working AMWG in the process line temperature in the furnace and the temperature of the released melt increase by 80-100C. growth temperature of exhaust gases above the layer of slag, Fig.5. In Fig.5 shows the dependence of the temperature change,With, the exhaust gases above the layer of slag at the cupola, from time �//img.russianpatents.com/chr/176.gif">C. (the engine speed ENGG - 3000 rpm, the frequency of oscillation of the air flow 100-300 Hz.)Thus, the appearance of the flame takes place at 410With (AMWG) and at 400With (without EMVG). When you start ENGG increasing the pressure in the injectors (at the output of the air in the oven) for 30%, which indicates an increase of the linear velocity of the air flow and therefore its kinetic energy.When using EPSG, table 4, the production line capacity is increased by 10% and reduced by 10% specific fuel consumption.Comparison of the proposed method with the prototype  shows the efficiency of fuel combustion. Since the preparation of the air before mixing with the fuel takes place in a separate apparatus (AMWG), the noise and pressure fluctuations within the combustion chamber are not observed. Work AMWG by the proposed method in comparison with the prototype , characterized by stability, which eliminates vibration of the equipment and the instability of the combustion fuel. In addition, the proposed method, unlike the prototype , allows to reduce fuel consumption for combustion and to increase the temperature of the process without changing technological regimes FLC question about the influence of ultrasound on the process of combustion/thermal engineering. 1962. No. 1.3. A. C. 228217 the USSR, class 24 century. Device for pulsating combustion. BI. 23.05.1969.4. Gilad C. J. Thermal performance fuel. The use of gas and fuel oil in the industrial/Modern methods of burning liquid fuel. VINITI. M., 1965, 1967.5. Podymov C. N., The northerner C. S., Liquor J. M./Applied research vibrating combustion. Kazan. The University of Kazan. 1987.6. Babkin Y. L., A. Shilin N. Block cameras pulsating combustion of fuel oil BKK-5000. Pulsating combustion. Chelyabinsk: Proceedings of the ito EP. 1968.7. A. C. 249534 the USSR, class 241.5. The method of burning liquid and powdered fuel. BI. 26.12.1969.8. Pat. OF THE RUSSIAN FEDERATION NO. 2131557, MKI 6 F 23 R 3/04.9. Pat. OF THE RUSSIAN FEDERATION NO. 2149311, MKI 7 F 23 B 1/16.
ClaimsA method of burning fuel, that consists in its submission on the burner with subsequent mixing with air and combustion, characterized in that the air prior to the mixing with the fuel is passed through the Electromechanical generator with rotating flaps that overlap on 3-97% channel air flow from the electric motor rotation speed 1000-
FIELD: methods for burning of solid fuel.
SUBSTANCE: the method for salvaging of trinitrotoluene, whose term of safe storage has expired consists in the fact that trinitrotoluene is fed to the combustion chamber in a melted state (at a temperature of 80 to 90 C) and burnt off in the atmosphere of gaseous fuel-methane not containing oxygen in its composition, as a result of burning due to own oxygen of trinitrotoluene, a great amount of own carbon (soot) is extracted, which then finds industrial application. For burning of trinitrotoluene use is made of an installation including a combustion chamber, pressure regulators for delivery of molten trinitrotoluene and gaseous fuel (methane), electric igniter and a filter for catching soot.
EFFECT: provided safe method for salvaging of trinitrotoluene in the combustion chamber in the atmosphere of gaseous fuel (methane).
2 cl, 1 dwg
FIELD: combustion apparatus for fluent fuels.
SUBSTANCE: method comprises supplying gas to be burnt out from the head of the burner of the torch plant in the combustion zone. The composition of gases is variable. The gas flow rate varies from 1m/s to 3.5 of sound speed due to generating excess static pressure of gas from 0.00001 MPa/cm2 to 3.0 MPa/cm2 by the movable control device. The gas jet is turbulent with a cone angle from 2o to 155o.
EFFECT: enhanced efficiency.
FIELD: combustion apparatus using fluent fuel.
SUBSTANCE: burner comprises casing made of a scroll, hollow shaft for fuel supply arranged inside the casing, sucking and exhausting branch pipes for air secured to the casing, nozzle mounted in the conical sleeve, diffuser, and drive. The shaft is mounted for rotation and provided with blades of the fan. The nozzle and conical sleeve are secured to the hollow shaft. The drive is secured to the casing inside the sucking branch pipe. The branch pipe is mounted with a space relation to the casing to provide a space for air flow. The shaft of the drive is hollow to provide fuel flow to the nozzle. The shaft of the drive and hollow shaft of the burner are axially aligned and interconnected. The drive shaft is provided with emulsifier for generating emulsion or suspension and supplying fuel and/or water emulsion and cock for fuel supply.
EFFECT: enhanced efficiency.
2 cl, 1 dwg
FIELD: methods of combustion of hydrocarbon fuels.
SUBSTANCE: the invention is dealt with the method of combustion of a hydrocarbon fuel in a burner. The method of combustion of hydrocarbon fuel in a burner provides, that along the burner external surface a non-corroding technical atmosphere is set in motion, chosen from a group including steam, CO 2 , nitrogen or their mixture. In the capacity of the non-corroding technical aerosphere they use steam. Combustion is carried out at the presence of steam. At least a part of the non-corroding aerosphere is added to the hydrocarbon fuel. The non-corroding aerosphere is used in an amount sufficient to dilute or replace a corroding technical aerosphere existing around the external surface of the burner. The invention allows to avoid a corrosive spraying of the metal and carbonization of the industrial burners exposed to action of the corroding technical aerosphere.
EFFECT: the invention allows to prevent a corrosive spraying of the metal and carbonization of the industrial burners.
5 cl, 1 dwg
FIELD: methods of burning pulverized fuel.
SUBSTANCE: proposed method includes preparation of fuel for burning, delivery of fuel, transportation of high-pressure air, mixing air with pulverized fuel and delivery of high-concentrated aeromixture to boiler burners. Transporting air is ozonized before mixing it with pulverized fuel ; part of ozonized fuel is delivered to transport of pulverized fuel and remaining part is delivered autonomous passage of burner to flame root via pipe line.
EFFECT: steady ignition of pulverized fuel; enhanced efficiency of burning process.
FIELD: methods of burning hydrocarbon fuel.
SUBSTANCE: proposed method of combustion of hydrocarbon fuel includes separate delivery of fuel and air to burner; fuel is delivered mainly to central area of air flow and is burnt over periphery of flame at excess air mode and at excess of fuel in central area of flame; vapor is fed to central area of flame and field of acoustic oscillations is applied. Burner proposed for burning the gaseous hydrocarbon fuel includes air box, hollow gas manifold with outlet gas holes; it is coaxially arranged inside vapor swirler manifold made in form of hollow cylindrical body with profiled passages and mounted in cylindrical body at radial clearance; cylindrical body has nozzle hole; one end face of vapor swirler is blanked-off and opposite end face is smoothly engageable with nozzle hole in body. Burner for combustion of liquid hydrocarbon fuel includes air box and injector mounted on fuel swirler and vapor swirler which are mounted in cylindrical body at radial clearance; said cylindrical body is provided with nozzle unit made in form of hollow detachable cap with holes over spherical end face; mounted at spaced relation inside this cap is cap of smaller diameter and similar in shape; smaller cap has holes which are coaxial to outer cap; outer cap is provided with additional holes; inner cap is not provided with such holes.
EFFECT: reduction of nitrogen oxide emissions by power-generating boilers at enhanced combustion of fuel.
5 cl, 5 dwg
FIELD: fuel burning devices.
SUBSTANCE: proposed ejection burner has body with branch pipes for delivery of combustion components, stabilizer, purging ports and injector additionally provided with mixing ejector consisting of body, contraction passage, fuel and oxidizer supply pipe unions; its construction makes it possible to regulate sectional areas of ejecting and ejected flows due to change of penetration of oxidized supply pipe union into contraction passage of ejector. Widening of flow of fuel-and-gas mixture in injector is made in two sections at different taper angles; diameter of spherical cover exceeds diameter of flow section of injector. Purging ports are made in form of three-stage system; first-stage purging ports are made in form of holes in burner body; second-stage purging ports are made in form of row of holes in combustion chamber; their flow sections change by means of regulating ring moved over surface of combustion chamber; third-stage purging port is made in form of coaxial circular passage copying the combustion chamber geometry. Stabilizer tube is twisted in form of cylindrical spiral. Proposed burner makes it possible to improve quality of mixing and evaporability of fuel in injector and to obtain complete combustion of fuel at extended range of stable operation by excess air coefficient.
EFFECT: enhanced efficiency; enhanced stability of combustion.
FIELD: burning separated oil-containing wastes formed during operation of ships.
SUBSTANCE: proposed incinerator burner includes several injectors for delivery of oil and diesel fuel wastes sprayed by air. Air injector equipped with swirler is located in front of oil and diesel fuel waste injectors; oil waste injector is located closer and distance of both fuel injectors may be changed relative to air injector whose axis lies at right angle relative to axes of fuel injectors; mounted in front of fuel injectors are jets whose orifices have diameter lesser than that of injectors.
EFFECT: enhanced efficiency of burning fuel; reduction of toxic emissions from reactor.
FIELD: mode of incineration of hydrocarbon fuel and an arrangement for its realization refers to engines and power engineering with working processes including preliminary processing of fuel.
SUBSTANCE: the invention may be applied for incineration of fuel as in a periodic regime which is characteristic for reciprocating motors of internal combustion so as for fulfillment of streaming regimes of incineration of fuel, for example, in jet, turbojet, gas turbine engines and power installations. The mode realizes induced destruction of molecules of metastable intermediate products of incomplete oxidation of hydrocarbons, accumulated in gas volume of fuel-airy mixture, by way of power impact leading to explosive three-dimensional spontaneous combustion of gas mixture. Peculiarity of the mode consists in that fuel-airy mixture is enriched with free electrons and power impact on molecules of the mixture for excitation of oscillatory degrees of freedom of molecules is fulfilled by means of their inelastic concussion with free electrons, speeded up by electric field, which tension E is less than tension of switching to independent gas discharge. Enrichment of fuel-airy mixture with free electrons is fulfilled by way of its ionization or by way of injection of electrons. The installation for realization of this mode has a combustion chamber with a source of power impact. The source of power impact consists of a unit of enrichment of fuel-airy mixture with free electrons and a source of a speeded up electric power which includes a system of electrons with controlled multiplexer switch connected to the sources of high-voltage tension. The invention allows to realize in a necessary moment of time momentary development of three-dimensional radical explosion in fuel-airy mixture due to simultaneous destruction of the majority of accumulated metastable molecules of intermediate products. Destruction of molecules of intermediate products generates a great number of active radicals and particles dividing and creating new circuits of reaction of oxidation of hydrocarbon and leads to development of chain-radical explosion.
EFFECT: high effectiveness of incineration mode.
21 cl, 7 dwg