Steam nozzle b. a. et al
(57) Abstract:Usage: for atomization of heavy fuels by burning residual fuel oils of different brands. The essence of the invention: on set with the possibility of axial movement of the Central tube 2 is made of annular ribs 3, adjacent to the periphery of the tube 1 and is provided with rectangular slots 5 with length and width, components, respectively, of 0.5 . . . of 0.7 and 0.2 . . . 0,6 width of the ribs is equal to the distance between the ribs 3 and the component of 0.3 . . . 0,5 outer diameter of the Central pipe 2. On the periphery of the insert 6 in the confused plot nozzle installed spray nozzle 8 with slots 9 in the area of its trailing edge, the annular channel 4 is spring-loaded throttle 7 made in the form of annular projections with hollow edge, opposing located on the inner peripheral surface of the pipe 1 and the outer surface of the insert 6 and the perforated nozzle 12 is made in the form of a truncated cone, facing a large base to the body, its perforation is made in the form of longitudinal slits, and the slits 5 adjacent ribs 3 are located on diametrically opposite sides. 1 C. p. F.-ly, 1 Il. The invention relates to a steam nozzle and can be used is Ranka Shukhov, containing the fuel channel with the nozzle located at the center, a steam channel with a nozzle.Known nozzle, comprising a housing with a confused-cylindrical outlet nozzle and posted on its axis with the formation of the annular channel box, is connected to input respectively coaxially to them periphery of the fuel pipe and the Central pipe for steam, and a perforated nozzle, mounted behind the exit nozzle body.The disadvantage of nozzles is small heating fuel, passing through the annular space formed outer and inner tubes, no mechanical impact on the dilution of the fuel and supply the fuel from the annular gap to the steam jet without pre-spray, in addition, mounted on the diffuser nozzle with having on the end nozzles destroys the flow of the fuel-steam mixture and reduces the dispersion due to the accumulation of fuel in front of the nozzles of the diffuser, fuel leaking when you stop the nozzle due to the lack of valve.The purpose of the invention is the increased efficiency and reliability.The goal is achieved in that the nozzle is further provided with executed in the Central tube of annular ribs, the Noi on the periphery of the insert in a confused area of the nozzle, and spring-loaded throttle, placed in the annular channel and is made in the form of annular projections with oblique edges, opposing located on the inner peripheral surface of the pipe and the outer surface of the insert, while the Central pipe is installed with the possibility of longitudinal movement and every edge is made with a rectangular slot having a length and a width, comprising: 0,5. . . of 0.7 and 0.2. . . 0,6 width of the ribs is equal to the distance between the ribs and part of 0.3. . . 0,5 outer diameter of the Central tube, and the slot nozzles have a spherical surface.In addition, a nozzle provided with a nozzle, made in the form of a truncated cone, facing a large base to the body, its perforation is in the form of longitudinal slits, and the slits of adjacent ribs are located on diametrically opposite sides.The drawing shows a steam injector.The nozzle includes an outer fuel tube 1, into which is inserted the tube 2, the annular ribs 3 forming chamber 4, the pipe 2 is installed with the possibility of longitudinal movement and each rib 3 is made with a rectangular slot 5, having a length and a width, comprising respectively the outer diameter of the pipe 2, the adapter 6, which has a spring-loaded throttle 7 made in the form of annular projections with oblique edges, opposing located on the inner surface of the pipe 1, the spray box 8 with slots 9, spring 10, the housing 11 with confused-cylindrical outlet nozzle, the nozzle 12, is made in the form of a truncated cone, facing a large base to the body, its perforation is in the form of longitudinal slits, and the slits of adjacent ribs are located on diametrically opposite sides.The nozzle operates as follows.The fuel is fed under pressure into the annular channel formed by the pipes 1 and 2 and passing through rectangular slots 5 of annular ribs 3 and camera 4, and then overcoming the spring loaded choke 7 and through holes 9 insert 8 is emitted to the output nozzle confused-cylindrical body 11, which channel tube 2 is fed with steam, where fuel, engaging in interaction with the steam flow through the longitudinal slit of the conical head 12 is ejected into the combustion space in the form of fuel-steam mixture.The invention improves the efficiency and reliability of the injector through the fuel in the annular channel through the holes 5, cardeston between the ribs and part of 0.3. . . 0,5 outer diameter of the tube 2, that allows to intensify the heat transfer and dilution of the fuel on its progress, to eliminate fuel leaking after stopping the nozzle due to the placed in the annular channel of a spring-loaded throttle 7, to improve the atomization of fuel flow into the steam flow through the installed spray insert 8 with slots in the area of its trailing edge and located in a confused-cylindrical nozzle section body 11, and also qualitative distribution of the fuel-steam mixture formed in the nozzle area of the housing 11 and extending through the longitudinal slit made by a truncated cone nozzles 12. (56) A. Wittmann A. , Katsnelson B. D. , pale And. And. the Spray liquid nozzle. M , L. : Gosenergoizdat, 1962, S. 144, Fig. 6-28.Kulagin L. C. , Moroshkin M. Y. Nozzle for atomization of heavy fuels. M. : Mashinostroenie, 1973, S. 136. Fig. 62. 1. Steam nozzle, comprising a housing with a confused-cylindrical outlet nozzle and posted on its axis with the formation of the annular channel box, is connected to input respectively to coaxially with them periphery of the fuel pipe and the Central pipe for steam, and a perforated nozzle set is further equipped performed on the Central tube of annular ribs, adjacent to the periphery of the pipe, a spray nozzle, with the slits in the area of its trailing edge that is installed on the periphery of the insert in a confused area of the nozzle, and a spring-loaded throttle, placed in the annular channel and is made in the form of annular projections with oblique edges, opposing located on the inner peripheral surface of the pipe and the outer surface of the insert, the Central pipe is installed with the possibility of longitudinal movement, every edge is made with a rectangular slot having a length and a width, comprising, respectively, of 0.5 - 0.7 and 0.2 - 0.6mm width of the ribs, equal to the distance between the ribs and part of 0,3 - 0,5 outer diameter of the Central tube, and the slot nozzles have a spherical surface.2. Nozzle under item 1, characterized in that the perforated nozzle is made in the form of a truncated cone, facing a large base to the body, its perforation is made in the form of longitudinal slits, and the slits of adjacent ribs are located on diametrically opposite sides.
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
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
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
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
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