Method of combustion of hydrocarbon fuel and device for realization of this method (versions)

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

 

The invention relates to a power system and can be used in chemical industry and metallurgy to reduce nitrogen oxides emissions from furnaces combustion of hydrocarbon fuels.

There is a method of combustion of hydrocarbon fuels (see patent Germany NOS 3327597, CL F 23 C 7/02, epubl g), consisting of separate supply of fuel and air in the burner, the fuel atomization in a coaxial double-layer air flow and combustion in non-stoichiometric ratio of the components in the volume of the torch.

Supplied to the burner air is divided into primary, participates in the combustion of the fuel in the root area of the torch, and secondary, which is involved in the oxidation of the tail of the torch. Secondary air is introduced into the combustion zone portion, thereby reducing the temperature in the core of the torch and, as a consequence, reduces the formation of oxides of nitrogen.

This method of burning fuel reduces emissions of oxides of nitrogen without significant deterioration of combustion and increasing the formation of other oxides of carbon. Lowering the temperature of the flame in non-stoichiometric combustion inevitably leads to incomplete burning of carbon and the formation of coke residue. Two-stage combustion has not received a distribution in energy, because this method is associated with a significant deterioration of the fullness of the benefits of the project for fuel and as a consequence, decrease the efficiency of the boiler as a whole.

A known method of burning a hydrocarbon fuel, the closest to the technical essence and taken as a prototype, implemented by the device (see "nitrogen Oxides in flue gases of boilers" Kotler V.R., M., Energoatomizdat, 1987, RES, str), including separate supply of fuel and air in the burner, the primary fuel supply in the Central region of the air flow and combustion at the periphery of the torch in the mode of excess air, and in the Central region of the torch is in the mode of excess fuel.

The fuel is moved from the center of the burner, and the air stream is divided into primary and secondary and served on the periphery, and, moreover, the fuel rasplivaetsa mainly in the primary stream, and in the Central region of the flame retardant is in the "rich" mode, and on the periphery of the torch organized the "poor" mode of combustion with excess air. The formation of oxides of nitrogen significantly depends on the temperature in the region of interaction of the components of the combustion reaction and decreases with decrease of temperature.

The disadvantage of burning hydrocarbon fuel, taken as a prototype, is the deterioration of combustion in General and the formation of unburned carbon particles in the Central part of the torch with a slight decrease in the output of nitrogen oxides. Minor pereobogaschennaya cent is the real area of torch fuel leads to a reduction in the output of nitrogen oxides, but, at the same time, thus deteriorating the efficiency of fuel combustion and boiler efficiency is reduced, the torch emits smoke and soot.

Known burner for burning a gaseous hydrocarbon fuel, the closest to the technical essence and is used as a prototype (see "nitrogen Oxides in flue gases of boilers" Kotler V.R., M., Energoatomizdat, 1987, RES, str), consisting of an air duct, a hollow tubular collector output of the gas holes and located coaxially inside the reservoir of the steam swirl, made in the form of a cylindrical body with ends and radial shaped channels mounted with radial clearance in a cylindrical housing with a nozzle hole.

The air flow is divided into two : primary and secondary. Gaseous fuel rasplivaetsa in both air flow, but in the primary flow is excessive, and the external is insufficient to obtain a stoichiometric ratio of components in the field of combustion. The flame temperature is less than the stoichiometric due to sabellastarte torch excess fuel in the inner area and excess air at the periphery, which leads to the reduction of oxides of nitrogen.

The disadvantage of the burner, adopted for the prototype is the incomplete combustion of fuel in the torch and, as a consequence, snizeni the economic performance of the plant as a whole. The lack of oxygen inside the torch leads to the formation in this area of large agglomerated particles of carbon, which is very difficult to burn out in the future. At the tail of the torch, where the products of incomplete combustion from a Central area mixed with the secondary air, unclaimed in the combustion process in the periphery, the temperature has dropped and previously formed larger particles of carbon With* do not have time to fade completely.

Known burner for burning liquid hydrocarbon fuel, the closest to the technical essence and is used as a prototype (see "nitrogen Oxides in flue gases of boilers" Kotler V.R., M., Energoatomizdat, 1987, RES, p.95), consisting of air ducts and nozzles on the trunk, representing the fuel swirl and steam dispenser mounted with radial clearance in a cylindrical housing with a nozzle device made in the form of a hollow removable cap with the holes in the spherical end.

The air flow is divided into two : primary and secondary. Liquid fuel rasplivaetsa in both air flow, but in the primary flow is excessive, and the external is insufficient to obtain a stoichiometric ratio of components in the field of combustion. The flame temperature is less than the stoichiometric due to sabellastarte torch sbytkompleks in the inner area and excess air at the periphery, which leads to the reduction of oxides of nitrogen.

Disadvantages burners adopted for the prototype are the same. Incomplete combustion of fuel in the torch and, as a consequence, the decline in the economic performance of the plant as a whole. The lack of oxygen inside the torch leads to the formation in this area of large particles agglomerated carbon*. At the tail of the torch, where the products of incomplete combustion from a Central area mixed with the secondary air, unclaimed in the combustion process in the periphery, the temperature has dropped and previously formed larger particles of carbon With* do not have time to fade completely.

Known burner for burning solid hydrocarbon fuel, the closest to the technical essence and is used as a prototype (see "nitrogen Oxides in flue gases of boilers" Kotler V.R., M., Energoatomizdat, 1987, RES, p.76), consisting of an air duct, a hollow tubular manifold fuel from the annular outlet and located coaxially inside the reservoir of the steam swirl, made in the form of a cylindrical body ends and radial shaped channels mounted with radial clearance in a cylindrical housing with a nozzle hole.

The fuel supply in the form of a mixture is carried out from the center of the burner, and the air flow is supplied at the periphery and into Pervy is hydrated and secondary, moreover, the fuel rasplivaetsa mainly in the primary stream, and in the Central region of the flame retardant is in the "rich" mode, and on the periphery of the torch organized the "poor" mode of combustion with excess air.

The disadvantage of the burner, taken as a prototype, is the deterioration of combustion in General and the formation of unburned carbon particles in the Central part of the torch with a slight decrease in the output of nitrogen oxides. Minor pereobogaschennaya Central region of the torch fuel leads to a reduction in the output of nitrogen oxides, but at the same time, thus deteriorating the efficiency of fuel combustion and boiler efficiency.

The technical result of the present invention is to reduce the formation of nitrogen oxides during the combustion of hydrocarbon fuels without reducing the fullness of his burnout.

The technical result is achieved in that in the method of burning a hydrocarbon fuel, comprising separate supply of fuel and air in the burner, the primary fuel supply in the Central region of the air flow and combustion at the periphery of the torch in the mode of excess air, and in the Central region of the torch is in the mode of excess fuel in the Central region of the torch is fed with steam and this region overlaps the field of acoustic oscillations.

The burner is designed for burning gaseous coal is hydrogen fuel, consisting of an air duct, a hollow tubular collector output of the gas holes and located coaxially inside the reservoir of the steam swirl, made in the form of a cylindrical body ends and radial shaped channels mounted with radial clearance in a cylindrical housing with a nozzle hole, the steam swirl one end plugged, but the opposite is smoothly connected with the nozzle hole in the hull.

The burner is designed for burning liquid hydrocarbon fuel comprising an air duct and nozzle on the barrel, representing a fuel swirl and steam dispenser mounted with radial clearance in a cylindrical housing with a nozzle device made in the form of a hollow removable cap with the holes in the spherical end face, inside the cap is installed with a gap smaller, similar in shape to the cap with holes aligned with the outside, while in the outer cap is made extra holes in the Central part, without adequate internal cap.

The burner is designed for burning solid hydrocarbon fuel consisting of an air duct, a hollow tubular manifold fuel from the annular outlet and located coaxially inside the collector steam is wow swirl, made in the form of a cylindrical body with ends and radial shaped channels mounted with radial clearance in a cylindrical housing with a nozzle hole, the steam swirl one end plugged, but the opposite is smoothly connected with the nozzle hole in the hull.

The proposed method of burning hydrocarbon fuel is as follows.

Combustion of hydrocarbon fuels are used, the fuel manifold is located in the center of the air box, and the fuel is injected by the jets in the air stream from the inside, i.e. jet fuel spread in carrying air flow from the center to the periphery at an angle. While jet fuel is distributed by the fan and create a curtain of air penetration to the center of the total flow.

Aeration of fuel flow occurs from the periphery inward, toward the center of the burner. Heating of the mixture and the subsequent outbreak of fuel begin on the contrary on the inside of the torch and are triggered due to the heat, bring the heated products of combustion in the zone of reverse currents from the tail of the torch in the root region.

The level of NOx emissions determined mainly three operating parameters: oxygen concentration in the zone of reverse currents, the combustion temperature and the residence time of the molecules of nitrogen (N2and oxygen O2in the field of high temperatures (above 1750). Usually lower oven NOx reduction temperature in the zone of active combustion by creating areas of non-stoichiometric combustion. The Central region of the root of the injected fuel during the initial part of the flame, preventing the free access of oxygen from the periphery, and then dorogaya unburned residues in the tail, in excess oxygen. The level of formation of nitrogen oxides is reduced, but in the furnace of the boiler there is smoke and soot which is deposited on the cold screen.

The method of reducing the formation of nitrogen oxides, taken as a prototype, based on the temperature decrease of the torch due to its division into two areas of non-stoichiometric combustion. But the field divided horizontally along the direction of movement of the components, and in the vertical plane, i.e. crosswise to the direction of flow of fuel and air. The fuel is fed from the center to the stream of primary air and combustion begins in the condition of pereobogaschennaya the initial phase of torch fuel. The primary air flow is separated from the secondary layer of inert gas recirculation, which prevent turbulent mixing and combustion at the periphery of the torch is the lack of fuel. The torch is divided into two areas burning conditionally combustion occurs at the periphery of the torch, and in its inner region at the same time, but burning inside develops in the condition of pereobogaschennaya fuel, and on the periphery - at pereobogaschennaya air. the Akel like dual layer.

Oxygen can enter into the inside of the torch in the root section only due to its ejection from the tail of the torch, where the air flow significantly tabulation combustion products. Reduced formation of nitrogen oxides in double layer torch is due to the fact that the outer torch tabulation excess air, it is unnecessary for burning at this stage and just absorbing the energy released during combustion. And the inner torch tabulation excess fuel, CH4that lack of free oxygen but sufficient temperature level is decomposed into components, namely, molecules of carbon and hydrogen H. hydrogen burn in the first place and the molecules of carbon, no oxygen for combustion, although the temperature is quite sufficient. The lack of oxygen, but a sufficient temperature level carbon molecules begin to specalise and form large particles of crystalline carbon With*. Leaving the root of the flame, the carbon particles are partially burn down at some distance from the burner, creating a glow in this area. Burning stretched. Also stretched and the peak temperature during the initial part of the flame, and thus decreases the formation of oxides of nitrogen.

Under proper conditions, the emission level of nitrogen oxides is reduced by 15...25%, for the threaded depending on the mode of operation of the boiler. But the torch when it is extended and the tail part is illuminated, which indicates the presence of a significant number of hot particles of carbon. Thus, the price to pay for reducing the formation of nitrogen oxides is reduced combustion efficiency and, consequently, reducing the efficiency of the plant as a whole.

The proposed method for the combustion of gaseous hydrocarbons allows you to burn fuel with a low level of formation of nitrogen oxides is lower than in the prototype, and confidently to burn the fuel without the formation of coke residue and reduce the efficiency of the plant through steam it in paleobasin Central region of the root section of the torch. In addition, a significant effect on the burn-in conditions of lack of oxygen renders the imposition of this area of intense acoustic waves.

It is known that water vapor significantly intensify the process of oxidation of carbon. The mechanism of this phenomenon is not revealed until the end so far, but numerous experiments investigated that the presence of water vapor greatly accelerates the burning of carbon. There are many publications on this subject and many researchers have applied the water and water vapor in the burner power boilers. In this way encouraged to submit water vapor is not just in the gas f is Kel, namely, in a pre-established area of "rich" burning part of the fuel in the Central area of the root section of the torch. In addition, for the intensification of the processes occurring in the field of combustion, it is proposed to impose on it the field of acoustic oscillations.

The proposed method allows to reduce the formation of nitrogen oxides by reducing the temperature in the core of the torch, and the zone of active combustion to divide into two regions and sabellastarte both: the peripheral region is excess air, and the Central - excess fuel. The periphery of the torch burns out cleanly, the excess air reduces the combustion temperature at the periphery, but apparently this has no effect - retardant transparent outside. But the flow of water vapor into the inside of the torch immediately leads to increased transparency and also the Central area of the torch, and the disappearance of the black tail torch. These visual changes of combustion can be judged on the completeness of fuel combustion and, indirectly, even on the efficiency of the plant as a whole.

Each gas burner has a spray device for supplying to the burner liquid fuel. It is proposed to install instead of the spray device with the use of steam as a working fluid for generating acoustic vibrations in the environment. The spent steam is supplied to the root portion of the evidence from the La and within this region is the source of acoustic oscillations, which essentially resembles a conventional steam or poromechanics nozzle with the only difference that inside of it is provided by steam channels a special form that allows you to organize inside the system catch-up supersonic jets. The shear stress at the edges of streams create a significant pressure drop and generate perturbations in the environment, which are subject to spray out. Intense vibrations environment improve mixing the components in a confined space and prevent the formation in combustion of large agglomerated particles of carbon. In this case, the product of the incomplete oxidation of carbon will be the carbon monoxide CO, which will oxidise to carbon dioxide CO2at the tail of the torch.

Scheme procuctions oscillator is presented in figure 4 and the location of the steam channels can be seen in figure 4 and 5. In cross section procuctions generator shows the mutual position of the steam channels and evident that these channels may have a cross-section of arbitrary shape, just at the exit of the channels was the catch-up system supersonic gas jets.

The technical Association of the three solutions in one application due to the fact that three devices burner solve the same task - reduction of nitrogen oxides during the combustion of hydrocarbon fuels without the Eisenia completeness of fuel combustion in the same way, namely, the formation in the Central region of the torch excess fuel flow to this area a couple or sprayed water and superimposed on this area of the field of acoustic oscillations.

Each of the technical solutions differs from its prototype in that it is a known method for reducing the output of nitrogen oxides by creating in the Central region of the torch recovery environment, adds and filing it in her steam or spray of water to improve the burn-crystalline carbon and the creation of a field of acoustic oscillations to improve the interactions between the components of the mixture.

Solutions cannot be contained in one item of the claim due to differences in their restrictive parts, expressing differences in the design of burners, and each design represents an independent invention. But the formula is solid and a gas burner of the same distinctive part due to the fact that coal dust is fed into the burner in the form of a mixture.

Hydrocarbon fuel is used as fuel in the three States of aggregation: in gaseous form, liquid or solid, but somewhat different, and the design of burners for combustion. Devices are independent of the technical solution, but they are United by a common way of working and pursuing a common goal.

Analog and pharmacuticals nozzle according to claim 4 of the formula are the two devices (see patent No. 2158390 and Small boilers and protection of the atmosphere" S.E. Belikov, Kotler V.R. M, Energoatomizdat, 1996, s.112)can also be used for atomization of liquid fuel due to the energy of the pair. The proposed design procuctions nozzle is the "highlight" of the design of the burner, which is designed for burning liquid hydrocarbon fuel. The proposed design of the nozzle allows you to apply pairs in the Central region of the torch from the Central holes of the nozzle device. The inner cap is designed for steam vortex propagating along the periphery of the internal cavity of the nozzle, was leaked into the gap between the caps and flowed through the Central hole of the outer cap and sprayed fuel with a part of the steam flows through holes in the inner cap and then through the outside hole of the outer cap. The diameter of the holes in the inner cap is less than the diameter of the outer hole of the outer cap and the diameter of the inner hole of the outer cap even less, and they are made at a smaller angle to the axis of the device than the hole.

Steam channels nozzles generate intense acoustic vibrations in the inner cavity of the nozzle, and an acoustic wave propagated through the nozzle holes together with the steam jet outside the nozzle.

A similar procuctions the second generator 3 and 5 of the formula is the unit injector (see patent No. 2158389)designed for atomization of liquid fuel due to the energy of the pair. In the absence of fuel steam generation channels of acoustic oscillations in the internal cavity of the device is amplified many times. You can use as procuctions generator nozzle to patent No. 2158389, if instead of liquid fuel feeding the steam or water. All thermal power plants or boilers are polluted or oily water flows, which cannot be discharged into municipal sewers. You can serve this water in the fuel channel and catch two birds with one stone - get rid of residual water and to reduce the release of nitrogen oxides during the combustion of gas or coal mixture.

The proposed method of burning hydrocarbon fuels can significantly reduce the emissions of nitrogen oxides compared with the method, taken as a prototype, without compromising the completeness of the combustion of fuel and reduce the economic performance of the plant as a whole.

Figure 1 shows the scheme of a gas burner and dual layer torch.

Figure 2 presents the scheme of the liquid burner.

Figure 3 presents the scheme of the solid-fuel burners.

4 shows an Assembly drawing procuctions generator and presents the layout of the steam channels.

Figure 5 presents Assembly drawing procuctions fo the drawings an d generator and presents the layout of the steam channels.

Burner for the combustion of gaseous hydrocarbon fuel consists of: air box 1 (see figure 1), in the channels which are installed vane swirler air 2, the gas manifold 3, which is a pipe-in-pipe, between which the gas is supplied, resulting in a swirling air flow through the gas holes 4 in the gas nozzle. In the gas manifold 3 is inserted rod with procuctions generator 5 at the end. Parachutiste generator is a hollow cylindrical body 14 (see figure 4) with the nozzle hole 16, in which the axial gap inserted steam swirl 15, is a hollow body of rotation with radial profiled channels on the side facing Solovay bore in the housing and plugged on the opposite side. Steam channels in the plane of the cross-section of the spray device are in the form of the repeating element of a logarithmic curve.

Burner for burning liquid hydrocarbon fuel is different in that the gas reservoir is not parachutiste generator, and procuctions nozzle generator 8 (see figure 2), which allows to resiliate liquid fuel in a cocurrent air flow, and to generate acoustic vibrations at the end of her pair.

Procuctions nozzle generator consists of the hollow cylindric the ski body 18 (see 5), in which the inserted body rotation: fuel swirler 19 and steam dispenser 20, the ends of which are cut blade steam channels, which are in the plane of the cross-section of the device repeating element of a logarithmic curve. Coplowe device is an outer hollow removable cap 21 with the holes on the spherical end, inside of which is installed with a gap of the same shape, but smaller cap 22 with holes aligned with the holes of the outer cap. In addition to the peripheral holes in the Central part of the outer cap is made even smaller orifice diameter. The nozzle is wrapped around a copper gasket 23 on the base 24, which made drilling for submission to the fuel injector through the Central channel and a pair of peripheral channels.

Burner for the combustion of solid hydrocarbon fuel is different from the gas-only version of the collector of the fuel, which is a "pipe-in-pipe, but does not have a conical nozzle with holes on the end and ends in the annular gap, through which chamber the ignition is fuel in the form of a mixture.

Does the burner is as follows.

The air is pumped inside the air box 1 (see figure 1), is forced through vane swirler 2 and DV the two swirling flows into the chamber ignition. The gas is fed into the gas manifold and squeezed out through the hole in the conical gas nozzle is also in the camera of ignition. Gas hole is designed so that the primary air flow is fed excessive amounts of gas, and the secondary flow is insufficient to produce the stoichiometric ratio of the components of the combustible mixture.

Steam is supplied by the rod in the annular channel between the cylindrical generator housing 14 and a steam swirl 15 (see figure 4), is forced through a shaped blade channels and forms in the inner cavity of the generator system catch-up supersonic jets. Spent in the generator, the steam is ejected through coplowe hole 16 in the Central region of the torch. The system catch-up jets generates acoustic waves propagating out of the generator into the inside of the torch. On the periphery of the torch formed the "poor" combustion and in the inner area of the torch creates a region with excess fuel, and the presence of steam or spray of water, as well as acoustic waves.

In the case of liquid burner air is supplied into the chamber ignition in the same way, the gas manifold is off, and the liquid fuel is supplied to the trunk in procuctions the nozzle is forced through the channels of the fuel swirl 19 (see figure 5) is a twisted thread enters the inner cavity of the nozzle.

Steam is supplied to the barrel to the nozzle, the annular channel between the cylindrical housing 18 and a steam nozzle 20, and further the pattern of the flow is similar to the movement of steam through parachutiste generator. Steam is forced through a shaped channels in the inner cavity of the nozzle, forming a system of catch-up jets, and actively interacts with the swirling flow of fuel. Part of the steam vortex retains its structure when the translational motion, flows in the annular gap between the outer 21 (smig) and internal 22 caps nozzle device, and flows out through the Central hole of the outer cap. Steam vortex pushes the fuel to the center of the internal cavity of the nozzle and therefore parmashta emulsion flows through the holes in the inner cap and then through the peripheral holes of the outer cap in the chamber of the ignition burner.

Acoustic waves propagate through the nozzle openings to the outside and significantly intensify heat and mass transfer processes in the torch, which prevents the formation of large particles of crystalline carbon.

In the case of burners for solid fuel system air supply to the burner remains the same. Fuel in the form of a mixture supplied to the burner through the fuel manifold and flows from the annular gap into the chamber ignition. Nabataproductions.com generator same as option gas burners.

The positive effect from the use of the proposed method of combustion of hydrocarbon fuels at thermal power stations is to reduce emissions of nitrogen oxides without reducing combustion efficiency.

1. A method of burning a hydrocarbon fuel, comprising separate supply of fuel and air in the burner, the primary fuel supply in the Central region of the air flow and combustion at the periphery of the torch in the mode of excess air, and in the Central region of the torch - mode excess fuel, characterized in that in the Central region of the torch is fed with steam and this region overlaps the field of acoustic oscillations.

2. Burner for the combustion of gaseous hydrocarbon fuel consisting of an air duct, a hollow tubular collector output of the gas holes and located coaxially inside the reservoir of the steam swirl made in the form of a hollow cylindrical body with shaped channels mounted with radial clearance in a cylindrical housing with a nozzle hole, wherein the steam swirl one end plugged, but the opposite is smoothly connected with the nozzle hole in the hull.

3. Burner for burning liquid hydrocarbon fuel comprising an air duct and nozzle on the barrel, representing with the fight of the fuel swirl and steam dispenser, mounted with radial clearance in a cylindrical housing with a nozzle device made in the form of a hollow removable cap with the holes in the spherical end face, characterized in that inside the cap is installed with a gap smaller, similar in shape to the cap with holes aligned with the outside, while in the outer cap is made extra holes in the Central part, without adequate internal cap.

4. Burner for the combustion of solid hydrocarbon fuel consisting of an air duct, a hollow tubular manifold fuel from the annular outlet and located coaxially inside the reservoir of the steam swirl made in the form of a hollow cylindrical body with shaped channels mounted with radial clearance in a cylindrical housing with a nozzle hole, wherein the steam swirl one end plugged, but the opposite is smoothly connected with the nozzle hole in the hull.



 

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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.

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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.

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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.

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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.

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EFFECT: provided safe method for salvaging of trinitrotoluene in the combustion chamber in the atmosphere of gaseous fuel (methane).

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