Diffusion injector-type burner (variants)

FIELD: the invention refers to the field of incineration of fuel particularly to the construction of a fuel-feeding arrangement.

SUBSTANCE: there are two proposed variants of fulfillment of diffusion injector type burners consisting of a body from one side rigidly connected with a nozzle fulfilled in the shape of a diffuser and from the other side- also rigidly- with a control mechanism having a branch pipe for feeding gas. Inside the body there is built-in from the side of the nozzle a throttle fulfilled in the shape of a truncated cone, with its large foundation directed into the side of gas movement, moreover the correlation of the diameter of the nozzle to the large diameter of the throttle does not prevail 1,4. On the throttle there are blades rigidly fixed in such a way that the projections of the lateral walls of the blades overlap free section of the burner. At that the throttle is connected with the control mechanism with the aid of a rod connected with the control mechanism movably. According to the first variant the rod is fulfilled hollow and the throttle is fulfilled with a hollow axis channel, at that the throttle and the rod are connected between themselves hermetically and a regulated shutter is installed in the rod from the side of the control mechanism. According to the second variant the rod is fulfilled hollow. The throttle is fulfilled with a hollow axis channel, at that the throttle and the rod are connected between themselves hermetically. In the channel formed with the cavity of the rod and the axis channel of the throttle there is the second burner for liquid fuel and (or) a tube each of which has one end on the edge of the throttle and with the other end the burner for liquid fuel is connected with an alternative kind of liquid fuel, and the tube is connected with liquid combustible wastes. Besides a regulated shutter fulfilled with possibility of overlapping the free section of the hollow rod and for possibility for passing through it of the second burner for liquid fuel and the tube is installed in the rod from the side of the control mechanism. The invention is directed on increase of intensification of incineration of fuel and besides on providing incineration of several kinds of fuel including utilization of liquid combustible gases.

EFFECT: allows reduce consumption of materials in the process due to replacement of part of the main fuel on more cheap residues of production.

2 cl, 8 dwg

 

The invention relates to the field of combustion, in particular, to the design of fuel injection device.

In practice, the operation of the burners in the field of building materials used in the construction of various gas burners. The most common burners used in the roasting clinker, lime, magnesia, are the diffusion burner. In furnaces listed plants burning gas without supplying primary air [Mikheev VP Gas fuel and its combustion. - Leningrad: Nedra", Moscow (1966). - 328 S.; Dravitzki Mrs x, Dobrovolsky A.G., Boxes AA efficiency rotary kiln. - Moscow: stroiizdat, 1990. - 224 S.]. Known designs of burners containing a nozzle located therein swirler blades and throttle mechanism, consisting of an inductor made in the form of a confusor connected through a thrust control mechanism [Mikheev VP Gas fuel and its combustion. - Leningrad: Nedra", Moscow (1966). - 328 S.; Dravitzki Mrs x, Dobrovolsky A.G., Boxes AA efficiency rotary kiln. - M.: stroiizdat, 1990. - 224 S.].

The disadvantage of these burners with throttle mechanisms is the lack of intensification of combustion.

Also known structure of the diffusion burner type grts with integrated swirl unit and orifice fur is a ISM, representing a single element that moves in the axial direction.

Disadvantages and, in particular, the throttle mechanism are insufficient intensification of burning fuel [Dravitzki Mrs x, Dobrovolsky A.G., Boxes AA efficiency rotary kiln. - M.: stroiizdat, 1990. - 224 S.].

Closest to the claimed is a burner type GDS [RF Patent №2187043, "Diffusion of a gas burner. Konovalov, V. M., Mishin, D.A., little bustards I.P., Shevchenko IPC7F23D 14/20, publ. 08.08.2001,] containing the nozzle, building and managing the throttle mechanism. The nozzle is made in the form of a cone. Inside the housing of the throttle mechanism, containing a throttle rod which is inside fixed supporting elements, limiting its radial deflection. Craving passes through managing the throttle mechanism and is engaged by the screw-and-nut with handle movement of the throttle. The choke is located on the side of the nozzle and fixed blades in such a way that the projection of the side walls of the blades overlap the free section of the burner. The orifice is made in the form of a truncated cone, the large base pointing towards the motion of the gas, the ratio of nozzle diameter to the larger diameter of the reactor is not greater than 1.4. In the burner housing built patruno the flange for the supply of gas.

Known throttle mechanism used in the burner, taken as a prototype, consisting of an inductor made in the form of a truncated cone, the large base pointing towards the motion of the gas rigidly connected with a thrust.

The disadvantages of the known burners with throttle mechanism is the low degree of intensification of burning fuel, and the impossibility of co-combustion of alternative fuels and disposal of combustible waste liquid.

The invention is aimed at improving the fuel combustion intensification and, in addition, to ensure co-combustion of several fuels, including through the utilization of liquid combustible gases, which reduces the consumption process due to the replacement of the main fuel to cheaper production waste.

This is achieved in two variants of execution of the burner.

According to the first variant of the diffusion gas burner consisting of a body with one hand rigidly connected with the nozzle, made in the form of a cone, and on the other, a militantly with the control mechanism and containing a nozzle for supplying a gas, within the body of the nozzle has a built-choke, made in the form of a truncated cone, the large base pointing towards the motion of the gas, and the ratio of nozzle diameter to a larger diameter shall be the El does not exceed 1,4, and on the throttle rigidly fixed blades in such a way that the projection of the side walls of the blades overlap the free section of the burner, while the choke is connected with the control mechanism by means of a thrust associated with the control mechanism movably. In the device according to the proposed decision of the rod is made hollow, and the choke is made with a through axial channel and is sealed to the draft, in which the side of the steering mechanism control valve is installed.

According to the second variant of the diffusion gas burner consisting of a body with one hand rigidly connected with the nozzle, made in the form of a cone, and on the other, a militantly with the control mechanism and containing a nozzle for supplying a gas, within the body of the nozzle has a built-choke, made in the form of a truncated cone, the large base pointing towards the motion of the gas, and the ratio of nozzle diameter to the larger diameter of the reactor is not greater than 1.4, and the throttle is rigidly fixed blades in such a way that the projection of the side walls of the blades overlap the free section of the burner, while the choke is associated with managing choke mechanism by means of a thrust associated with the control mechanism movably. In the device according to the proposed decision of the rod is made hollow, the choke is made with Skotnikova channel, when this orifice and the rod are connected tightly and in the channel formed by the cavity of the rod and the axial channel of the throttle, are second burner for liquid fuel and / or tube, each of which one end opens onto the edge of the throttle, the other end of the second burner for liquid fuel connected with alternative kinds of fuel, and the pipe is connected with a liquid combustible wastes, in addition, in the thrust-side control mechanism adjustable flap, made with the possibility of overlapping free cross section of the cavity in the light and passing through a second burner for liquid fuel and tubes.

The invention is illustrated by drawings, where figure 1 shows a General view of the burner with a hollow throttle and thrust; figure 2 shows an enlarged section view of the hollow throttle controlled valve; figure 3 shows a General view of the burner with a pipe for the disposal of liquid wastes; figure 4 shows an enlarged section view of the hollow throttle with adjustable flap, which passes through the tube for disposal of combustible waste liquid; figure 5 shows a cross-section of the hollow throttle with adjustable flap, which passes through the tube for disposal of combustible waste liquid; figure 6 shows a burner containing a second burner for liquid fuel and a pipe for disposal of liquid wastes; n is 7 shows an enlarged section view of the hollow throttle with adjustable flap, which passes through the tube for disposal of liquid fuels and waste burner for liquid fuel; Fig shows the throttle mechanism.

The inventive burner according to the first embodiment consists of a housing 1 containing a nozzle for supplying a gas 7. The housing 1 on the one hand rigidly, for example by welding, is connected to the burner nozzle 2, is made in the form of a cone. Case on the other hand also rigidly, for example by bolting, is connected with a control throttle mechanism 3, containing the support 4 of the steering mechanism 3 and the handle move the throttle 5. Handle move the throttle 5 is connected to the support 4 of the steering mechanism 3 for example by passing a "screw-nut". The device comprises a hollow rod 6 which passes through the control mechanism 3 and with it engaged through the screw thread of the handle moving the throttle 5. On the opposite side thrust 6 rigidly, for example by welding, fixed throttle 8, made in the form of a truncated cone, with a through axial channel, while the large cone is directed towards the base in the direction of gas movement. The inductor 8 and the rod 6 are connected tightly, for example by welding. The thrust cavity together with a through axial channel inductor form a through channel of the burner. On the throttle 8 is rigidly, for example by welding, with respect to the axis of the burner, fixed LAPACK is 9. Corner fastening of the blades is determined experimentally. In the proposed solution of blades mounted at an angle of 20°and the opening angle of the throttle and nozzle is 12°. The blade 9 is fixed so regardless of the angle of projection of the side walls of the blade overlaps the free section of the burner, it is necessary to increase the degree of swirling gas flow. Structurally, the diameter of the larger base of the throttle 8 is designed so that at the position of the throttle gap between the orifice and the nozzle was provided by the small thickness of the gas stream exiting the nozzle, to ensure rapid and more complete mixing of fuel with air. In the proposed solution the gap is 16 mm in nozzle diameter of 130 mm and the diameter of the throttle 97 mm gap provides the velocity gas 430 m/s gas flow 12500 nm /hour. Together with this, the ratio of nozzle diameter to the diameter of the reactor is not greater than 1.4, as in the prototype. To the body 1 side of the steering mechanism 3 tightly-sealed, for example by welding, is attached a pipe 7 for supplying a gas. Tough-tight connection is necessary to prevent gas leakage. To reduce the deflection of the traction 6 rod fixed in the radial direction uniformly throughout the length of the rod is rigidly fixed, for example by welding, the edges 11, conjugate is suspended from the inner surface of the housing. From the opposite end of the hollow rod from the throttle is adjustable valve 12 mounted inside the rod. The valve is, for example, a metal sheet made according to the shape and size of the cross section of the cavity, in order to completely cover the cross-section of the cavity in the light. The valve can be mounted movably, for example on two axes 10 inside the hollow thrust 6 with the possibility of free rotation around its axis. Valve 12 mounted on shafts rigidly, for example by welding. One axle 10 extends beyond the boundaries of traction and ends with the lever 13 with the handle 14. On the arm 13 rigidly, for example by welding, fixed pin 15. The lever handle is necessary in order to adjust the position of the valve. To lock the valve in the desired position on the deadlift 6 from pin 15 on the arm 13 rigidly, for example by welding, fixed arcuate plate 16 with holes 20 for pin 15.

The burner according to the second variant further comprises a tube 17 and a second burner for liquid fuel 18 (see Dravitzki E.B., Dobrovolsky A.G., Boxes AA efficiency of rotary kilns. - M.: stroiizdat, 1990. - P.69-77), located or separately, or together in the channel formed by the cavity of the rod and the axial channel of the throttle. When this tube 17 may be made of metal and one end goes to the edge of the throttle 8 and the other to the CMA connected to the tank, containing combustible liquid waste. In the form of liquid waste can be used waste oil. The tube 17 may be fixed along the axis of thrust, for example, by supporting ribs 11, adjacent to the inner surface of the hollow rod. A second burner for liquid fuel 18 also one end goes to the edge of the throttle 8 and the other end connected with alternative kinds of fuel. As an alternative fuel can be used oil, diesel fuel and other liquid fuels. The second burner for alternative fuel can be fixed, for example, as a tube, through the supporting ribs 11, adjacent to the inner surface of the hollow rod. Using the second burner for liquid fuel allows you to save the main type of fuel combusted gas, and the tube can be disposed of combustible liquid waste.

If the channel formed by the cavity of the rod and the axial channel of the throttle, built at the same time the second burner for liquid fuel 18 and tube 17, they can be either fixed by the supporting ribs, adjacent to the inner surface of the hollow thrust, or just loose in the channel. Adjustable flap is arranged to overlap the free section of the channel in the light and passing through a second horaces liquid fuel and tubes. Structurally, this can be accomplished, for example, in the form of a metal plate made according to the size and shape of the cross section of the cavity in which the holes with a tolerance for the passage of the burner and / or tubes, allowing the valve to rotate around its axis in the axes.

The burner according to the first embodiment is as follows. Gas through the pipe 7 enters the burner housing 1, then the burner nozzle 2. Turning the knob 5 on the control mechanism 3, the impact through the transfer of "screw-nut" is transmitted to the hollow rod 6. Reciprocating impact through rod 6 is transmitted to the throttle 8 blades 9. The throttle 8 is introduced into the burner nozzle 2, partially overlapping the free section of the nozzle, thereby increasing the velocity of the gas. Escaping gas is additionally twisted blades 9, increasing the degree of turbulence of the gas stream, which intensifies the combustion of the gas at low speeds of flight. Next, gas, high speed departing from the nozzle 2, leads to a significant pressure drop over the edge of the nozzle, which entails intensive involvement of air in a jet of gas, and the injection of air from the channel formed by the axial channel of the throttle 8 and the thrust cavity 6. The amount of the injected air from the channel is regulated by the valve 12 by turning the handle 14, is rigidly connected to the floor of the sue of the valve 12. When opening the valve 12 and rotation of the handle 14 increases the gap between the flap and the walls of the hollow thrust 6, thereby increasing the amount of injected air, which is mixed with the gas stream. This intensifies the combustion of the fuel, leading to a decrease in the length of the torch, as well as to increase the heat-stressed and temperature of combustion. When the overlapping section of the hollow thrust valve 12 decreases the amount of injected air in the fuel stream and the combustion process is inhibited, resulting in the length of the flame increases. In combination with the blades, throttle and primary air injected through the channel, increase considerably within the regulatory parameters of the torch, which reduces the number of marriage.

Structural changes related to the throttle with the axial channel 8, the hollow thrust 6 and valve simplifies the design, allowing you to remove the fan high pressure primary air, reduce the complexity in the manufacture of the burner. In combination with the blades, throttle and primary air is injected through channel of the burner, substantially increase the limits of regulation parameters of the torch, which will reduce the number of issued marriage, as the operator of the furnace can burn unprepared material in unstable operation of the furnace. In the burner according to the prototype Neuve is Sogno so to intensify the combustion due to the design features of the burner.

If the second variant in the channel formed by the cavity of the rod and the axial channel of the throttle, set the tube, due to the fact that the free end of the tube is located on the edge of the throttle, it goes into the area of low pressure created by the high velocity gas flow from the nozzle of the burner, resulting in a waste liquid coming from the reservoir through the pipe in an area of low pressure behind the throttle trim, is picked up by the gas stream and burn at high temperatures. The amount of the injected air from the channel is regulated by the valve 12. When opening the valve increases the amount of the injected air, which is mixed with the gas stream, which intensifies the combustion of the fuel, resulting in shortening the length of the torch, as well as to increase the heat-stressed and temperature. Simultaneously with opening of the valve due to the increase of the discharge increases and the amount of drawn liquid combustible waste, which is caught by the flow of gas and is burned at high temperatures. When the overlapping section of the hollow thrust valve decreases the amount of injected air in the fuel stream and the combustion process is inhibited, resulting in the length of the flame increases. When the diameter of the inductor 210 mm and the diameter of the hole in the choke and pull of 120 mm, the gas flow 12500 nm3/h to the number of injected air is 3000 nm 3/H. Structural changes relating to the inductor 8, thrust 6 using the valve 12 in a considerable interval to change the position of the throttle 8 with fixed blades 9 and, as a consequence, in a wide range to change the velocity of the gas, increasing the intensity of burning fuel, that simplify the design, allowing you to remove the fan high pressure primary air, reduce the complexity in the manufacture of the burner. Due to the fact that significantly increase the limits of regulation flame parameters, decreases the quantity of marriage, as the operator of the furnace can burn unprepared material in unstable operation of the furnace, and at the same time happens disposal of combustible waste. In the burner according to the prototype it is impossible so to intensify the burning because of the structural characteristics of the burner and disposed combustible liquid waste without installing a separate burner under their burning and installation of the pump for their submission. Waste incineration will reduce the consumption of the primary fuel at an equivalent quantity of waste.

If the channel formed by the cavity of the rod and the axial channel of the throttle, set the burner for burning alternative fuels 18, the free end of which is located on the edge of the throttle, then the liquid fuel, atomizing the ü oil burner mixed with the gaseous fuel and the air coming out of the fridge, and burn together. The amount of the injected air from the channel is regulated by the valve 12. When the diameter of the inductor 210 mm and the diameter of the hole in the choke and pull of 120 mm, the gas flow 12500 nm3/h quantity of the injected air is 3000 nm3/H. Structural changes relating to the inductor 8, thrust 6 using the valve 12, in a considerable interval to change the position of the throttle 8 with fixed blades 9 and, as a consequence, in a wide range to change the velocity of the gas, increasing the intensity of burning fuel, that simplify the design, allowing you to remove the fan high pressure primary air, reduce the complexity in the manufacture of the burner. Due to the fact that significantly increase the limits of regulation flame parameters, decreases the quantity of marriage, as the operator of the furnace can burn unprepared material in unstable operation of the furnace, and at the same time will use cheaper alternative liquid fuels. Today one of the cheap fuel is gas. But in connection with the tendency to increase its rates and taking into account the world prices, the price of gas in Russia will exceed the price of liquid fuels (fuel oil) awardee (coal). In the burner according to the prototype it is impossible so to intensify the burning because of the structural characteristics of the burner and disposed combustible liquid waste without installing a separate burner under their burning and installation of the pump for their submission. Waste incineration will reduce the consumption of the primary fuel at an equivalent quantity of alternative fuels.

When sharing a channel formed by the hollow thrust and the hole in the choke, tube for supplying liquid waste fuel and the second burner, for example fuel oil, burner device operates as follows. Leaking gas from the nozzle 2 creates over the edge of the burner area of low pressure. Therefore, liquid waste from the tank connected to the pipe 17 passing through the tube and emerging from it, is picked up by the gas stream. In the low pressure behind the edge of the burner fuel oil, raspalas burner operating on alternative fuel, mixed with gas, liquid waste, the primary air

Thus, the authors found that structural changes of the throttle and thrust increase the intensity of the combustion of fuel, including allowing you to burn multiple types of fuel, disposing of combustible liquid waste. In addition, reduces the complexity of manufacture of the burner, and the limit is increased, the regulation of pairs of the investment destinations torch allows to reduce the scrap rate.

1. Diffusion of a gas burner consisting of a body with one hand rigidly connected with the nozzle, made in the form of a cone, and on the other also rigidly with the control mechanism and containing a nozzle for supplying a gas, within the body of the nozzle has a built-choke, made in the form of a truncated cone, the large base pointing towards the motion of the gas, and the ratio of nozzle diameter to the larger diameter of the reactor is not greater than 1.4, and the throttle is rigidly fixed blades in such a way that the projection of the side walls of the blades overlap the free section of the burner, while the choke is connected with the control mechanism by means of a thrust, associated with the control mechanism movably, wherein the rod is made hollow, and the choke is made with a through axial channel, and the throttle and pull tightly interconnected and powered by the control mechanism of the control valve is installed.

2. Diffusion of a gas burner consisting of a body with one hand rigidly connected with the nozzle, made in the form of a cone, and on the other also rigidly with the control mechanism and containing a nozzle for supplying a gas, within the body of the nozzle has a built-choke, made in the form of a truncated cone, the large base aimed in the direction of motion of the gas is, moreover, the ratio of nozzle diameter to the larger diameter of the reactor is not greater than 1.4, and the throttle is rigidly fixed blades in such a way that the projection of the side walls of the blades overlap the free section of the burner, while the choke is connected with the control mechanism by means of a thrust associated with the control mechanism movably, wherein the rod is made hollow, the choke is made with a through axial channel, and the throttle and pull tightly interconnected, and in the channel formed by the cavity of the rod and the axial channel of the throttle are second burner for liquid fuel and / or tube, each of which one end out on the edge of the throttle, the other end of the second burner for liquid fuel connected with alternative kinds of fuel, and the pipe is connected with a liquid combustible wastes, in addition, in the thrust-side control mechanism adjustable flap, made with the possibility of overlapping free cross section of the hollow rod and passing through a second burner for liquid fuel and tubes.



 

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Burner // 2391604

FIELD: machine building.

SUBSTANCE: burner consists of air supplying case with vortex, of central gas pipe, and of cup with air holes; inside cup there is installed gas distributing grate made in form of two hollow truncated cones; burner also contains tangential branch rigidly fixed in case base. Section areas of spaces between the cup and bigger bases of hollow truncated cones of the grate and section areas of spaces between the cup and smaller bases of the hollow truncated cones of the grate are equal.

EFFECT: design of burner facilitating combustion of low-calories gaseous fuel in boilers, chambers and furnaces; also combustion is characterised by considerable volume consumption, by generation of short flare of length not over 3-5 of diametre of outlet opening of burner and by elimination of gas flue thermal damage.

2 cl, 5 dwg

FIELD: power engineering.

SUBSTANCE: burner for gas burning comprises cylindrical vessel, stabiliser, gas swirler, besides cylindrical vessel is equipped with controlled gate for air supply, and at other side of vessel there is a stabiliser installed along axis with pipe of gas supply, and secondary air swirler blades are rigidly fixed on external cylindrical surface of stabiliser, in inner cavity there is injector installed coaxially and rigidly fixed near end of air and gas supply, and on its outer surface there are blades of gas swirler fixed, and on inner side there is a plate swirler of primary air fixed with two twist flows, besides blades of gas swirlers and secondary air swirlers and plate swirler of primary air have the same twisting direction, and gas swirlers and secondary air swirlers also have equal number of rigidly fixed and axially arranged blades.

EFFECT: improved quality of fuel burning by improved arrangement for mixing of fuel gas, primary and secondary air jets.

1 dwg

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