Pneumatic burner

FIELD: machine building.

SUBSTANCE: pneumatic burner consists of gas and fuel supplying pipes, fuel nozzle, hollow case and flange. The fuel nozzle consists of two cylinder sections and one conic section. A circular diaphragm with profiled elliptic orifices is installed in the hollow case. The orifices are inclined relative to axis of the fuel nozzle at angle equal to angle of taper of a coaxial conic channel. The fuel nozzle can additionally contain a guiding tip with diffusion hole. The gas supplying pipe is preferably set tangentially to the hollow case. The burner can additionally have the coaxial conic channel formed with the hollow case and the guiding tip with the diffusion hole. Geometry of the coaxial conic channel is preferably made controlled.

EFFECT: reduced operational pressure fall of fuel; increased radial and circumferential uniformity of fuel distribution in spray; control of distribution of drops around diameters.

5 cl, 1 dwg

 

The invention relates to devices for spraying liquid media and can be used for dispersion liquid fuels in combustion chambers of gas turbine installations, life support systems, various technological processes.

Known improved nozzle for liquid fuel burners for gas turbines EN 2304252 C2, F23D 11/10 from 20.12.2002 designed to spray liquid fuels containing the head, tip, tapering cavity, a hole, a tube, a Central channel.

The disadvantage of this design are large losses of total pressure and energy costs in the process of spraying, high-uniformity of spray.

Closest to the technical nature of the proposed device is a nozzle aerodynamic containing gas and nutritious fuel pipe, fuel nozzle, a hollow body, a flange (EN 2072475 C1, F23D 11/10 Nozzle aerodynamic from 27.01.1997).

The disadvantage of this design are the large work pressure fuel; high radial and circumferential uneven distribution of the fuel spray; the inability to control the distribution of droplet diameters.

The technical result of the invention is the reduction of the working pressure differential: fuel, increasing the radial and circumferential distribution of Oliva in the spray, the ability to control the distribution of droplet diameters.

The essence of the proposed technical solution is that the pneumatic injector containing gas and nutritious fuel pipe, fuel nozzle, a hollow body, the flange has a fuel nozzle, comprising two cylindrical section and one conical. In the hollow body is equipped with an annular aperture, in which the elliptical shaped holes, inclined relative to the axis of the fuel nozzle at an angle equal to the angle of taper coaxial conical channel.

In order to reduce the working pressure differential on the fuel of the fuel nozzle includes two cylindrical section and one conical and includes a guide tip of the cone opening. To increase radial and circumferential distribution of fuel spray gas feeding pipe is installed tangentially to the hollow body. The ability to control the distribution of droplet diameters provided by the fact that the pneumatic injector contains a coaxial tapered channel formed by the hollow body and guides the tip of the cone opening. The geometry of coaxial conical channel is made adjustable. To manage the distribution of droplet diameters profile is rowanne elliptical hole is inclined relative to the axis of the fuel nozzle at an angle, equal to the angle of taper coaxial conical channel.

The drawing shows a longitudinal section of a pneumatic injector.

Pneumatic injector contains nutrient gas pipe 1, which is attached to a hollow body 2. The end surface of the hollow body 2 is attached washer 3, connected to the flange 4, which is installed in the fuel feeding pipe 5 with the filter 6. To the flange 4 by means of the threaded connection secures the fuel nozzle 7 with the guide lug 8, containing diffuser hole 9. In the hollow body 2 has an annular aperture 10 with elliptical shaped holes 11, connected with the guide tip 8. The hollow body 2 and the guide tip 8 form a coaxial conical channel 12.

Compressed air is supplied in the nutrient gas pipe 1 and enters the cavity formed hollow body 2 and the fuel nozzle 7, where intense twists, and moves in the direction of the elliptical shaped hole 11 of the ring diaphragm 10. In the form of intense swirling flow of air passes through the elliptical shaped openings 11, is inclined relative to the axis of the fuel nozzle at an angle equal to the angle of taper coaxial conical channel 12. This helps to ensure optimal interaction of air swirling shroud with Ista the surrounding of the diffuser holes 9 jet fuel and to provide effective dispersion. The air entering the coaxial conical channel 12, accelerates and runs from him for crushing the fuel jet. Fuel, cleaned from solids by the filter 6, is fed under pressure into the fuel nutritious pipe 5 and moves along the fuel nozzle 7 in the direction of the guide tip 8. The presence of the fuel nozzle 7 two cylindrical and one conic sections allows to reduce the loss of total pressure to overcome the forces of viscous friction. Passing through the internal channels of the fuel nozzle 7, the fuel enters the diffuser hole 9 of the guiding lug 8, which extends to the output of crushed swirling air shroud, resulting from coaxial conical channel 12.

We offer pneumatic nozzle allows you to organize high-quality spray fuel in the shortest area for minimum pressure drop and energy consumption on the supply of components.

1. Pneumatic injector containing gas and nutritious fuel pipe, fuel nozzle, a hollow body, a flange, wherein the fuel nozzle includes two cylindrical section and one tapered, hollow body is equipped with an annular aperture, made with elliptical shaped holes, inclined relative to the axis of the fuel nozzle at an angle equal to the angle to which nosnosti coaxial conical channel.

2. Pneumatic injector according to claim 1, wherein the fuel nozzle further comprises directing the tip of the cone opening.

3. Pneumatic injector according to claim 1, characterized in that the gas feeding pipe is installed tangentially to the hollow body.

4. Pneumatic injector according to claim 1, characterized in that it further comprises a coaxial tapered channel formed by the hollow body and guides the tip of the cone opening.

5. Pneumatic injector according to claim 4, characterized in that the geometry of coaxial conical channel is made adjustable.



 

Same patents:

FIELD: machine building.

SUBSTANCE: module of burner for gas generator consists of two-step spreader of two-component mixture flow, of two component supplying tubes running from two-step two component mixture spreader, and of face plate of burner, where there pass tubes for supply of two-component mixture. The face plate contains a cooling system designed for plate cooling. Further, the module of the gas generator burner consists of circular nozzles built in the face plate of the burner; also each circular nozzle envelops a corresponding tube supplying two-component mixture. The two-step flow spreader of two component mixture flow contains a main cavity consisting of spreaders of flow of the first step and of secondary cavities diverging from the main cavity on further ends of the spreaders of the first step. Also each secondary cavity comprises the spreaders of flow of the second step. Tubes for supply of two-component mixture run from each secondary cavity on the further ends of the spreaders of the second step flow. The face plate of the burner contains a porous metal partition with nozzles passing through it; the cooling system has a porous metal partition cooled with reagents infiltrating through the porous metal face plate. The face plate of the burner contains a back plate, a front plate and a channel of cooling medium between the back and front plates. The cooling system contains the cooling medium channel. In the cooling system cooling medium flows through this channel to cool the front plate. The front plate contains transition metal. The burner module additionally contains conic elements running through the back plate and the front plate; also each conic element is installed on the end of each tube for supply of two component mixture. Each conic element contains a circular nozzle.

EFFECT: raised efficiency of installation for gasification of carbon containing materials.

20 cl, 8 dwg

Coaxial jet nozzle // 2291977

FIELD: power engineering.

SUBSTANCE: coaxial jet nozzle comprises hollow tip that connects the space of one of the fuel components with the combustion zone and bushing that embraces the tip to define a ring space and connects the space of the other fuel component with the combustion zone. The exit section of the tip is provided with the radial grooves so that the periphery of the central jet bounded by the generatrices of the beams is no more than 3s, and the beam length is 2.3-2.5s, where s is the beam thickness.

EFFECT: enhanced completeness of combustion.

1 cl, 3 dwg

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed gas-turbine engine has central stage arranged in gas duct of engine from its part arranged higher relative to direction of main gas flow to part lower in direction of main gas flow and provided with exhaust gas cone forming device in direction of main gas flow, and guide arrangement. Gas-turbine engine has group of blades, group of fuel nozzles and group of igniters. Guide arrangement is located in zone of edge of exhaust gas cone-forming device arranged higher relative to direction of main gas flow. Group of blades is located in gas duct out of the limits of central stage. Blades are provided with atomizing guides extending through blades. Fuel nozzles are installed on inner ends of corresponding atomizing guides. Each nozzle is provided with input, output and passage between input and output. Passage has part arranged to direct fuel flow to first part of passage surface located across and widening downwards in direction of flow with subsequent deflection fuel flow by first part of surface and its outlet from nozzle. Igniters are arranged in corresponding atomizing guides for igniting fuel from corresponding fuel nozzle.

EFFECT: provision of reliable lighting up in afterburner, improved recirculation of fuel in flow.

13 cl, 8 dwg

FIELD: burners.

SUBSTANCE: burner is made of well of specified length (up to 650 mm). The fuel flowing through stabilizer of fuel supply enters the fuel supply pipe and then through fuel nozzles to the mixing chamber of the nozzle. The fuel jet impacts on the conical hollow in the working face of the deflector, thus enhancing the spraying of fuel. The compressed steam enters the ring passage defined by the fuel and steam supply pipes. The steam then enters the first (hydraulic) spraing stage of the mixing chamber through the steam nozzles drilled in the swirler radially and tangentially. The mixing chamber is interposed between the hydraulic deflector and exit section of the fuel nozzle. The steam entrains the fuel jet broken down with the deflector and then continues to break it in the second (gas) spraying stage, in the zone around the rod of the hydraulic deflector.

EFFECT: improved quality of spraying.

3 cl, 4 dwg

FIELD: burners.

SUBSTANCE: nozzle has mixing chamber whose section arranged downstream of the radial nozzles of the first sprayer is conical. The nozzles of the third sprayer are arranged over the periphery at the outlet of the conical section of the chamber. The nozzles of the third sprayer are connected with the ring row of the passages of the first sprayer. The nozzles of the third sprayer are mounted at an angle of to the vertical axis of the nozzle and under an angle of to its plane.

EFFECT: enhanced efficiency.

1 cl, 2 dwg

The invention relates to a technique of spraying a liquid and can be used in burners, oil-fired and intended for carrying out roofing work, as well as to heat the bitumen in the bitumen tank trucks and concrete

Injector // 2218521
The invention relates to energy, namely the technique of spraying fluid with compressed air or steam in the process chambers for the combustion of liquid (gaseous) fuel boilers for atomizing liquids, in particular slurries, solutions, suspensions

The invention relates to the combustion of liquid fuel to the injectors to burn oxygen and liquid fuels, and the nozzle has an outer casing containing the first input end, a second output end for exit of the flame combustion and which defines a combustion chamber and a longitudinal X axis; means for supplying fuel to enter the stream of sprayed fuel on the input end and the direction of its outlet end and means for supplying oxygen to the input of oxygen into the input end and for its direction to the outlet end, and means for supplying oxygen has many outlets for oxygen, located on a circle around the fuel and angled radially inwards in the direction of the output end and directed obliquely relative to the X-axis for education thereby converging cone flow of oxygen, which crosses the flow of fuel in the first, located along the flow area, and means for supplying fuel actually has a Central outlet opening having an inner surface in the form of a diverging cone, which forms the fuel as it flows from there, with the inner surface of the diverging cone contains the first surface of the diverging cone of the UCA further comprises a second surface diverging cone, adjacent to the first surface of the diverging cone, and the first surface of the diverging cone has a higher angle from the X axis than the second surface diverging cone

The invention relates to a power system

The invention relates to the field of heat and is designed for combustion of fuel, mostly liquid in boiler furnaces, stoves and energy-technological units for the preparation of fluid and thermal treatment of industrial waste and can be used for burning fuel oil and other liquid fuels in different fuel devices

FIELD: burners.

SUBSTANCE: nozzle has mixing chamber whose section arranged downstream of the radial nozzles of the first sprayer is conical. The nozzles of the third sprayer are arranged over the periphery at the outlet of the conical section of the chamber. The nozzles of the third sprayer are connected with the ring row of the passages of the first sprayer. The nozzles of the third sprayer are mounted at an angle of to the vertical axis of the nozzle and under an angle of to its plane.

EFFECT: enhanced efficiency.

1 cl, 2 dwg

FIELD: burners.

SUBSTANCE: burner is made of well of specified length (up to 650 mm). The fuel flowing through stabilizer of fuel supply enters the fuel supply pipe and then through fuel nozzles to the mixing chamber of the nozzle. The fuel jet impacts on the conical hollow in the working face of the deflector, thus enhancing the spraying of fuel. The compressed steam enters the ring passage defined by the fuel and steam supply pipes. The steam then enters the first (hydraulic) spraing stage of the mixing chamber through the steam nozzles drilled in the swirler radially and tangentially. The mixing chamber is interposed between the hydraulic deflector and exit section of the fuel nozzle. The steam entrains the fuel jet broken down with the deflector and then continues to break it in the second (gas) spraying stage, in the zone around the rod of the hydraulic deflector.

EFFECT: improved quality of spraying.

3 cl, 4 dwg

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed gas-turbine engine has central stage arranged in gas duct of engine from its part arranged higher relative to direction of main gas flow to part lower in direction of main gas flow and provided with exhaust gas cone forming device in direction of main gas flow, and guide arrangement. Gas-turbine engine has group of blades, group of fuel nozzles and group of igniters. Guide arrangement is located in zone of edge of exhaust gas cone-forming device arranged higher relative to direction of main gas flow. Group of blades is located in gas duct out of the limits of central stage. Blades are provided with atomizing guides extending through blades. Fuel nozzles are installed on inner ends of corresponding atomizing guides. Each nozzle is provided with input, output and passage between input and output. Passage has part arranged to direct fuel flow to first part of passage surface located across and widening downwards in direction of flow with subsequent deflection fuel flow by first part of surface and its outlet from nozzle. Igniters are arranged in corresponding atomizing guides for igniting fuel from corresponding fuel nozzle.

EFFECT: provision of reliable lighting up in afterburner, improved recirculation of fuel in flow.

13 cl, 8 dwg

Coaxial jet nozzle // 2291977

FIELD: power engineering.

SUBSTANCE: coaxial jet nozzle comprises hollow tip that connects the space of one of the fuel components with the combustion zone and bushing that embraces the tip to define a ring space and connects the space of the other fuel component with the combustion zone. The exit section of the tip is provided with the radial grooves so that the periphery of the central jet bounded by the generatrices of the beams is no more than 3s, and the beam length is 2.3-2.5s, where s is the beam thickness.

EFFECT: enhanced completeness of combustion.

1 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: module of burner for gas generator consists of two-step spreader of two-component mixture flow, of two component supplying tubes running from two-step two component mixture spreader, and of face plate of burner, where there pass tubes for supply of two-component mixture. The face plate contains a cooling system designed for plate cooling. Further, the module of the gas generator burner consists of circular nozzles built in the face plate of the burner; also each circular nozzle envelops a corresponding tube supplying two-component mixture. The two-step flow spreader of two component mixture flow contains a main cavity consisting of spreaders of flow of the first step and of secondary cavities diverging from the main cavity on further ends of the spreaders of the first step. Also each secondary cavity comprises the spreaders of flow of the second step. Tubes for supply of two-component mixture run from each secondary cavity on the further ends of the spreaders of the second step flow. The face plate of the burner contains a porous metal partition with nozzles passing through it; the cooling system has a porous metal partition cooled with reagents infiltrating through the porous metal face plate. The face plate of the burner contains a back plate, a front plate and a channel of cooling medium between the back and front plates. The cooling system contains the cooling medium channel. In the cooling system cooling medium flows through this channel to cool the front plate. The front plate contains transition metal. The burner module additionally contains conic elements running through the back plate and the front plate; also each conic element is installed on the end of each tube for supply of two component mixture. Each conic element contains a circular nozzle.

EFFECT: raised efficiency of installation for gasification of carbon containing materials.

20 cl, 8 dwg

Pneumatic burner // 2431777

FIELD: machine building.

SUBSTANCE: pneumatic burner consists of gas and fuel supplying pipes, fuel nozzle, hollow case and flange. The fuel nozzle consists of two cylinder sections and one conic section. A circular diaphragm with profiled elliptic orifices is installed in the hollow case. The orifices are inclined relative to axis of the fuel nozzle at angle equal to angle of taper of a coaxial conic channel. The fuel nozzle can additionally contain a guiding tip with diffusion hole. The gas supplying pipe is preferably set tangentially to the hollow case. The burner can additionally have the coaxial conic channel formed with the hollow case and the guiding tip with the diffusion hole. Geometry of the coaxial conic channel is preferably made controlled.

EFFECT: reduced operational pressure fall of fuel; increased radial and circumferential uniformity of fuel distribution in spray; control of distribution of drops around diameters.

5 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: atomiser of, primarily, liquid-propellant rocket engine comprises casing with fuel feed adapter. Note here that the latter is arranged inside said case at pylons while its channel is connected with fuel chamber via bores made in said pylons. In includes the sleeve arranged with ring clearance at said case to make circular gaseous oxidiser channel connected with oxidiser chamber via channels in the casing between its wall and fuel feed pylons. Adapter channel is closed at its inlet while its inner chamber communicates with ring gap between adapter and said sleeve via radial bores made at outlet. Note here that sleeve outlet has stepped expansion with its chamber connected with fuel chamber via tangential channels made in sleeve wall. In compliance with one version, sleeve outlet expansion accommodated hollow cylinder making an extension of sleeve inner channel to make ring gap with ring expansion outlet cylindrical surface. Chamber of said dap communicates via tangential bores with fuel chamber. Axial bore is made at adapter end. Stepped expansion is made at adapter outlet. Note here that bores equally spaced in circle and at angle to adapter axis are made at adapter end. Stepped expansion is made at adapter outlet. Note here that bores equally spaced in circle and at angle to adapter axis are made at adapter end located in the plane of sleeve tangential bores.

EFFECT: higher completeness combustion and better mix formation.

5 cl, 11 dwg

FIELD: heating.

SUBSTANCE: fuel tube for a burner, and namely for a gas turbine burner, includes an end that has a surface for nozzles, as well as at least two fuel nozzles. The surface for the nozzles is equipped with splines between the fuel nozzles and is made in the form of an annular conical surface. The splines pass through the above surface perpendicular to the circumferential direction of the annular surface. The end is made in the form of a flattened cone. The side surface of the flattened cone forms the surface for the nozzles.

EFFECT: invention is aimed at increasing the nozzle service life.

7 cl, 3 dwg

FIELD: energy engineering.

SUBSTANCE: device comprises a shell with a shaped inlet and outlet, mounted on the frame, a pilot burner located inside the shell, a mixing head representing two toroid-shaped collectors located on the same axis, in which the pneumatic nozzles connecting them are set, at that one collector is connected to the system of feeding compressed air or steam and the other collector is connected to the hydrocarbon fluid feeding system.

EFFECT: increase in efficiency and completeness of combustion process of hydrocarbon fluid.

2 cl, 4 dwg

FIELD: fire safety.

SUBSTANCE: pneumatic nozzle comprises the fluid and the gas supply systems and the nozzle, the liquid supply system is carried out in two directions comprising the axial liquid supply through the inlet pipe and the confuser and the cylindrical nozzle, connected in series and coaxial with it, and the tangential liquid supply is carried out through the housing in the form of a cylindrical-conical sleeve, coaxial with the cylindrical nozzle, on the cylindrical part thereof the annular vortex chamber with the liquid supply pipe is fixed. Along the annular chamber edges, two rows of inlet fluid tangential channels are provided, each row comprising at least three tangential channels connecting the annular chamber with the cylindrical cavity of the housing, to which the circular plate is coaxially fixed, located perpendicularly to the axis of the annular vortex chamber and rigidly connected to the cylindrical cavity of the housing in its end section, and a slotted nozzle is attached perpendicularly to the circular plate. The slot nozzle is made combined and consisting of two mutually perpendicular rectangular parallelepipeds with throttle through openings of a rectangular cross section, connected with the housing cavity, and the divider of the two-phase flow is attached coaxially to the circular plate, to its peripheral portion, formed as a perforated conical surface surrounding the slotted nozzle with throttle through openings of a rectangular cross section connected to the housing cavity.

EFFECT: increased efficiency of the gas-drop jet formation and expanding its supply area.

2 cl, 2 dwg

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