CN114413280B - Two-stage radial rotational flow standard model burner based on central rotational flow gear - Google Patents
Two-stage radial rotational flow standard model burner based on central rotational flow gear Download PDFInfo
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- CN114413280B CN114413280B CN202210200940.XA CN202210200940A CN114413280B CN 114413280 B CN114413280 B CN 114413280B CN 202210200940 A CN202210200940 A CN 202210200940A CN 114413280 B CN114413280 B CN 114413280B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
- F23R3/12—Air inlet arrangements for primary air inducing a vortex
- F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes
Abstract
The utility model provides a radial whirl standard model combustor of doublestage based on central whirl gear linkage adjustable, includes: outside cavity, inboard cavity and central level swirler, wherein: the inner side cavity part with the outer side rotational flow generating device is sleeved in the outer side cavity, the center-level cyclone with the variable rotational flow generating device is positioned in the center of the inner side cavity, and external air respectively (1) enters a first compression channel between the outer side cavity and the inner side cavity to drive the outer side rotational flow generating device and then is discharged from an annular channel; (2) directly enters the inner cavity, is discharged after being driven by the second compression channel to drive the variable rotational flow generating device, and realizes gear linkage.
Description
Technical Field
The invention relates to the technology in the field of aero-engines, in particular to a two-stage radial rotational flow standard model combustor based on a central rotational flow gear.
Background
The high air-fuel ratio combustion process in the advanced aeroengine combustion chamber is required, so that a large amount of compressed air needs to enter from the head of the flame tube. Install in the swirler of flame tube head and realize the important part of high-efficient mixing and burning when guaranteeing combustion chamber point flame-out border, can reach the effect that reduces pollutant emissions such as combustion chamber export NOx and soot. In order to ensure that the combustion chamber can effectively work under the conditions of high-low oil-gas ratio, the design of the prior advanced swirler needs to adopt a mode of combining multi-stage swirlers for tissue combustion, wherein the variable swirler realizes the change of the swirl strength by changing the ratio of radial air intake and axial air intake, but the swirler has a longer swirl generation section and is not suitable for an aeroengine; another is by the angle of the swirler vanes to achieve a change in swirl strength. However, the general swirler with blades is welded on the swirler hub through the blades, and the swirl strength cannot be changed.
Disclosure of Invention
The invention provides a two-stage radial rotational flow standard model burner based on a central rotational flow gear, aiming at the defects that the angles of rotational flow blades in the existing multi-stage rotational flow burner are independent and uncontrollable, the deflection angles of all the blades cannot be uniformly ensured to be consistent, the change of rotational flow strength cannot be ensured, and the space among multi-stage rotational flows cannot be controlled to realize the adjustment of interaction strength and change of multi-stage rotational flow strength.
The invention is realized by the following technical scheme:
the invention relates to a two-stage radial rotational flow standard model burner based on central rotational flow gear linkage and adjustment, which comprises: outside cavity, inboard cavity and central level swirler, wherein: the inner side cavity part with the outer side rotational flow generating device is sleeved in the outer side cavity, the center-level cyclone with the variable rotational flow generating device is positioned in the center of the inner side cavity, and external air respectively (1) enters a first compression channel between the outer side cavity and the inner side cavity to drive the outer side rotational flow generating device and then is discharged from an annular channel; (2) directly enters the inner cavity, is discharged after being driven by the second compression channel to drive the variable rotational flow generating device, and realizes gear linkage.
The lateral cavity comprises: the outer top cover body, the annular outer wall surface of the outer cavity and the wall surface of the inner shrinking cylinder of the outer cavity are sequentially connected.
The inboard cavity include: the device comprises an outer side rotational flow generating device, a rotational flow interaction distance adjusting body, an inner side cavity annular outer wall surface, an inner side cavity air inlet section and an inner side cavity contraction inner cylinder wall surface which are sequentially connected.
The inner wall of the annular outer wall surface of the outer side cavity and the outer wall of the wall surface of the contracted inner cylinder of the outer side cavity form a first compression channel; the inner wall of the outer top cover body and the outer wall of the rotational flow interaction distance adjusting body form an annular channel; the annular outer wall surface of the inner cavity, the inner wall of the air inlet section of the inner cavity and the outer wall of the wall surface of the inner cylinder contracted by the inner cavity form a second compression channel.
The corners of the inner walls of the annular outer wall surfaces of the outer side cavity and the inner side cavity are in smooth transition of curved surfaces.
The outer walls of the wall surfaces of the contracting inner cylinders of the outer cavity and the inner cavity are smooth curved surfaces, and the cross sectional areas of the outer walls and the inner walls are increased from bottom to top, so that the corresponding first compression passage and the corresponding second compression passage become contracting passages, and the gas flowing into the outer stage rotational flow air inlet or the gas flowing into the inner cavity air inlet section is accelerated.
The outer wall surfaces of the contraction inner cylinder of the outer side cavity and the inner side cavity are provided with steps so as to install the annular honeycomb plate, and the flowing quality is further improved.
The diameter of the inner wall of the outer top cover body is 54 mm, and the diameter of the outer wall of the corresponding rotational flow interaction distance adjusting body is 40 mm.
Technical effects
According to the invention, the change of the distance between the inner-stage rotational flow and the outer-stage rotational flow is conveniently realized through the first compression channel and the annular channel; the two-stage adjustable cyclone is added on the basis of the combustion chamber with the single-stage adjustable cyclone, so that the outer side cyclone generating device and the cyclone interaction distance adjusting body are convenient to replace, and the adjustment of the number of the inner and outer stages of cyclones and the distance between the inner and outer cyclones can be easily realized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic diagram of the structure of the outer chamber;
FIG. 4 is a schematic view of the inner chamber;
FIG. 5 is a schematic view of the overall structure of the center-stage swirler and the swirl vane control shaft;
FIG. 6 is a schematic view of a center stage swirler and swirl vane control components;
FIG. 7 is a schematic diagram of an experimental scenario and a measurement optical path according to an embodiment;
FIG. 8 is a schematic view of a variable swirl generator;
FIG. 9 is an original image of a swirl mixing transient concentration field after the center-stage swirl vanes are changed to different angles in the embodiment;
in the figure: the device comprises an outer top cover body 1, an outer side cavity annular outer wall surface 2, an outer stage swirl air inlet 21, an outer side cavity contraction inner cylinder wall surface 3, an outer side swirl generating device 4, a swirl interaction distance adjusting body 5, an annular passage 51, an inner side cavity annular outer wall surface 61, an inner side cavity air inlet section 62, an inner side cavity contraction inner cylinder wall surface 7, a center stage swirl blade control rotating shaft 8, a variable swirl generating device 9, a center stage swirler top bearing 91, a center stage swirler top cover 92, a center stage swirler blade 93, a center stage swirler bottom bearing 94, a center stage swirler chassis 95, a center stage swirler pinion 96, a center stage swirler bull gear 97, a center stage swirler blade rotating shaft 98, a center control shaft upper bearing 10, a center control shaft lower bearing 11, a blade angle index dial 12 and a center control shaft flat key pin 13.
Detailed Description
As shown in fig. 1 and fig. 2, for this embodiment, a dual-stage radial swirl standard model burner based on central swirl gear linkage and adjustable includes: outside cavity, inboard cavity and central level swirler, wherein: the inner side cavity part with the outer side rotational flow generating device 4 is sleeved in the outer side cavity, the central-level rotational flow device with the variable rotational flow generating device 9 is positioned in the center of the inner side cavity, and external air respectively (1) enters a first compression channel 31 between the outer side cavity and the inner side cavity to drive the outer side rotational flow generating device 4 and then is discharged 51 from an annular channel; (2) directly enters the inner cavity, is discharged after being driven by the second compression channel 71 to drive the variable rotational flow generating device 9, and realizes gear linkage.
As shown in fig. 3, the outer cavity includes: an outer top cover body 1, an outer side cavity annular outer wall surface 2 and an outer side cavity shrinkage inner barrel wall surface 3 which are connected in sequence.
The connecting plates are connected in sequence, sealing connection is achieved through flange plates, and the thickness of the flange plates is preferably 10 mm to guarantee connection stability.
The top of the outer top cover body 1 is provided with a square groove for installing a quartz glass observation window, and the observation window is preferably 2 mm thick.
And 4 outer-stage rotational flow air inlets 21 with the inner diameter of 6 mm for introducing outer-stage air and tracer particles are arranged on the annular outer wall surface 2 of the outer side cavity.
The thickness of the annular outer wall surface 2 of the outer cavity is preferably 5 mm, the inner diameter is 176 mm, and the outer cavity can bear the pressure of 1.5 atmospheres in experiments.
The inner wall of the outer side cavity annular outer wall surface 2 and the outer wall of the outer side cavity shrinkage inner cylinder wall surface 3 form a first compression channel 31, wherein: the corner of the inner wall of the annular outer wall surface 2 of the outer cavity is in smooth transition from a curved surface, and the outer wall of the wall surface 3 of the inner cylinder contracted by the outer cavity is a smooth curved surface so as to ensure the flowing quality; the cross section area of the wall surface 3 of the inner cylinder contracted by the outer cavity is increased from bottom to top, so that the first compression channel 31 becomes a contraction channel to accelerate the gas flowing in the outer stage rotational flow air inlet 21; the outer wall surface of the outer side cavity contraction inner cylinder wall surface is provided with steps to install the annular honeycomb plate, and the flowing quality is further improved.
As shown in fig. 4, the inner cavity includes: consecutive outside whirl generating device 4, whirl interact interval regulating body 5, inboard cavity annular outer wall 61, inboard cavity section of admitting air 62 and inboard cavity shrink inner tube wall 7, wherein: the outer side rotational flow generating device 4 and the rotational flow interaction distance adjusting body 5 are fixed through threaded holes, the rotational flow interaction distance adjusting body 5 is additionally provided with 4 threaded holes for being connected with an annular outer wall surface 61 of the inner side cavity, and the inner side cavity air inlet section 62 and the inner side cavity contraction inner cylinder wall surface 7 are fixed through a flange plate with the thickness of 10 mm.
12 swirl blades 41 with the same deflection angle are arranged on the outer swirl generating device 4.
The bottom of the rotational flow interaction distance adjusting body 5 is provided with an annular groove which is used for being matched with an annular bulge at the top of the annular outer wall surface 61 of the inner side cavity body so as to ensure the coaxiality of installation.
The thickness of the inner side cavity annular outer wall surface 61 is preferably 5 mm, the inner diameter is 80 mm, internal threads are engraved in the inner side cavity annular outer wall surface, and the inner side cavity annular outer wall surface is rotationally fixed with the inner side cavity air inlet section 62 with external threads engraved on the outer side.
The inner cavity air inlet section 62 is provided with 4 air inlets with inner diameters of 6 mm for introducing central-level air and tracer particles.
The inner wall 1 of the outer top cover body and the outer wall of the rotational flow interaction distance adjusting body 5 form an annular channel 51, wherein: the diameter of the inner wall of the outer top cover body 1 is 54 mm, and the diameter of the outer wall of the swirling flow interaction distance adjusting body 5 is 40 mm.
The inner side cavity annular outer wall surface 61, the inner wall of the inner side cavity air inlet section 62 and the outer wall of the inner side cavity contraction inner cylinder wall surface 7 form a second compression channel 71, wherein: the corner of the inner wall of the annular outer wall surface 61 of the inner cavity is in smooth transition from a curved surface, and the outer wall of the inner wall surface 7 of the inner cavity shrinkage inner cylinder is a smooth curved surface so as to ensure the flowing quality; the cross-sectional area of the inner cavity contraction inner cylinder wall surface 7 is increased from bottom to top, so that the second compression passage 71 becomes a contraction passage to accelerate the gas flowing in from the inner cavity gas inlet section 62; the outer wall surface of the inner side cavity contraction inner cylinder wall surface 7 is provided with steps so as to install the annular honeycomb plate, and the flowing quality is further improved.
As shown in fig. 5, the center stage swirler includes: the variable cyclone generation device comprises a center-level cyclone blade control rotating shaft 8, a center control shaft upper bearing 10, a center control shaft lower bearing 11 and a variable cyclone generation device 9 which is arranged on the center-level cyclone blade control rotating shaft 8 and used for uniformly coordinating the cyclone blades of the center-level radial cyclone, wherein the variable cyclone generation device is sequentially connected with the center-level cyclone blade control rotating shaft 8: central control
The upper bearing 10 of the brake shaft and the lower bearing 11 of the central control shaft are respectively positioned at the top and the bottom of the central through hole of the wall surface 7 of the inner cavity contraction inner cylinder.
The preferred diameter of the center stage swirl vane control rotating shaft 8 is 8 mm, and the total length is 320 mm.
The variable rotational flow generating device 9, the central control shaft upper bearing 10, the central control shaft lower bearing 11 and the central-stage rotational flow blade control rotating shaft 8 are in interference fit.
The central-stage swirl vane control rotating shaft 8 is further provided with a vane angle dial 12, and the dial 12 comprises: the surface of the blade angle dial is provided with a rotation angle, and the center of the blade angle dial is connected with the blade control rotating shaft.
As shown in fig. 6, the variable swirling flow generating device 9 includes: from top to bottom set gradually central level swirler top cap 92, central level swirler chassis 95 and central level swirler gear 97 on central level swirl vane control pivot 8, wherein: a plurality of center-level swirler top bearings 91 are uniformly distributed on a center-level swirler top cover 92, and rotating units are uniformly distributed on a center-level swirler base plate 95.
The rotating unit includes: center stage swirler vanes 93 on a center stage swirler platform 95, a center stage swirler bottom bearing 94, and a center stage swirler pinion 96 connected thereto by vane spindles 98 and located below the center stage swirler platform 95, wherein: center stage swirler pinion 96 meshes with center stage swirler bull gear 97.
The bottom of the central cyclone bull gear 97 is provided with a central control shaft flat key pin 13. The shape of the central control shaft flat key pin 13 corresponds to the shape of the inner hole of the large gear 97 of the central cyclone, so that the central cyclone blade control rotating shaft 8 can drive the large gear 97 of the central cyclone to rotate without relative movement.
The central cyclone base plate 95 is provided with 12 grooves for arranging the central cyclone bottom bearing 94.
The center-stage swirler vanes 93 are 10 mm long and 4.25 mm high, and the vane airfoil is NACA 0020.
The diameter of the center stage swirler vane rotor shaft 98 is 2 mm.
The present embodiment relates to a mounting method of the burner, including:
step 1) respectively installing a central control shaft upper bearing 10 and a central control shaft lower bearing 11 at corresponding positions of an inner side cavity contraction inner cylinder wall surface 7, and placing a variable rotational flow generating device 9 at the top of the inner side cavity contraction inner cylinder wall surface 7.
And step 2), placing the central control shaft flat key pin 13 into the central-stage swirl vane control rotating shaft 8, and inserting the central-stage swirl vane control rotating shaft 8 into the inner side cavity shrinkage inner cylinder wall surface 7 in the step 1). A vane angle dial 12 is installed at the bottom of the center stage swirl vane control rotary shaft 8. The existing components are fixed on the aluminum section bar tabletop by utilizing the flange plate and the long bolt at the bottom of the inner cylinder wall surface 7 which is contracted by the inner side cavity.
Step 3) placing the annular outer wall surface 61 of the inner cavity into the wall surface 3 of the contracted inner cylinder of the outer cavity, and then connecting the air inlet section 62 of the inner cavity with the bottom of the annular outer wall surface 61 of the inner cavity. The existing parts are fixed on the aluminum section bar tabletop by utilizing the flange plate and the long bolt at the bottom of the wall surface 3 of the inner cylinder which is contracted by the outer side cavity. And adjusting the height to match with the central-stage component.
And step 4) sequentially adding a rotational flow interaction distance adjusting body 5 and an outer rotational flow generating device 4 at the top of the annular outer wall surface 61 of the inner cavity. An outer side cavity annular outer wall surface 2 is installed on the outer side cavity shrinkage inner cylinder wall surface 3, and finally an outer top cover body 1 is installed on the outer side cavity annular outer wall surface 2.
The two-stage radial rotational flow standard model combustor changes the outer rotational flow angle by replacing the outer rotational flow generating device 4. The outer side rotational flow generating device 4 is provided with two configurations of 30 degrees and 60 degrees, and only the outer top cover body 1 needs to be detached during replacement.
The two-stage radial rotational flow standard model combustor realizes the change of the two-stage rotational flow distance by replacing the rotational flow interaction distance adjusting body 5. The interacting distance adjusting bodies 5 have a total inner diameter of 16 mm, 21 mm and 26 mm for replacement. When the device is replaced, only the outer top cover body 1 and the outer side rotational flow generating device 4 need to be detached.
The two-stage radial rotational flow standard model combustor adjusts the central-stage rotational flow angle through the variable rotational flow generating device. When in use, the angle index dial 12 of the rotating vane drives the central-stage swirl vane to control the rotating shaft 8 to rotate, and the rotating shaft drives the central-stage swirler gearwheel 97 to rotate. The large central swirler gear 97 will drive the peripheral 12 small central swirler gears 96 to rotate at the same time, and further drive the 12 central swirler vanes 93 to deflect. The deflection angle of the center stage swirler vane 93 and the deflection angle of the vane angle dial 12 have a corresponding relationship, and the center stage swirler vane 93 is calibrated to a 0-degree position when being installed. Since the gear ratio of the large gear to the small gear is 84 = 16=5.25, during use, the vane angle index dial 12 is deflected by 1 degree, and the center stage swirler vanes 93 are correspondingly deflected by 5.25 degrees.
As shown in fig. 7, through a specific practical experiment, a particle velocity measurement technique and a laser-induced fluorescence concentration measurement technique are used to measure a velocity field and a concentration field, and an outer-stage swirl vane angle is 30 degrees, a swirl interaction distance body is 21 mm, and by changing a center-stage swirl angle, the swirl interaction distance body corresponds to five types of vane angle index dials, namely, 0 degree, +6 degree, +11 degree, -6 degree and-11 degree, and the swirl vane angles corresponding to the center stage are respectively 0 degree, +31.5 degree, +57.75 degree, -31.5 degree and-57.75 degree. The inner stage channel flow is 50slm, and the outer stage channel flow is 150slm. As a result, the diffusion degree of the center-stage cyclone acetone concentration mixed cyclone is obviously changed to achieve the expected effect, as shown in FIG. 8.
Compared with the prior art, the variable radial rotational flow generating method is realized through the variable rotational flow generating device, and the synchronous stepless adjustment of the blade angle is ensured. Through setting up central whirl interact interval regulating body, can conveniently realize the change of interval between interior level whirl and the outer stage whirl. The cyclone separator is particularly suitable for screening tests of different cyclone schemes in the initial stage of combustion chamber development, can greatly reduce development cost and period, has the advantages of simple and reliable structure, and realizes the change of multistage cyclone strength and the adjustment of the interaction distance of inner and outer stages of cyclones. Through the design of inner and outer cavity separation, the problem that multistage assembly is complicated and difficult to maintain is systematically solved.
The foregoing embodiments may be modified in many different ways by those skilled in the art without departing from the spirit and scope of the invention, which is defined by the appended claims and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. The utility model provides a radial whirl standard model combustor of doublestage based on central whirl gear linkage adjustable which characterized in that includes: outside cavity, inboard cavity and central level swirler, wherein: the inner side cavity part with the outer side rotational flow generating device is sleeved in the outer side cavity, the center-level cyclone with the variable rotational flow generating device is positioned in the center of the inner side cavity, and external air respectively (1) enters a first compression channel between the outer side cavity and the inner side cavity to drive the outer side rotational flow generating device and then is discharged from an annular channel; (2) directly enters the inner cavity, and is discharged after the variable rotational flow generating device is driven by the second compression channel;
the variable swirling flow generating device comprises: from top to bottom set gradually in the epaxial central level swirler top cap of central level whirl blade control pivot, central level swirler chassis and central level swirler gear wheel, wherein: a plurality of center-level swirler top bearings are uniformly distributed on a center-level swirler top cover, and rotating units are uniformly distributed on a center-level swirler chassis;
the rotating unit includes: center level swirler blade, center level swirler bottom bearing and through the blade pivot with it link to each other and be located center level swirler pinion under the center level swirler chassis that are located on center level swirler chassis, wherein: the central cyclone pinion is meshed with the central cyclone bull gear;
the lateral cavity comprises: the outer top cover body, the annular outer wall surface of the outer side cavity and the wall surface of the outer side cavity shrinkage inner cylinder are sequentially connected;
the inboard cavity include: consecutive outside whirl generating device, whirl interact interval regulating body, inboard cavity annular outer wall, inboard cavity section of admitting air and inboard cavity shrink inner tube wall, wherein: the inner side cavity air inlet section is provided with an air inlet for introducing central-level air and tracer particles; an outer-stage rotational flow air inlet used for introducing outer-stage air and tracer particles is formed in the annular outer wall surface of the outer side cavity, the rotational flow interaction distance adjusting body is replaced to change the two-stage rotational flow distance, and rotational flow blades of the central-stage radial cyclone are uniformly coordinated and variable through gear linkage.
2. The central rotational flow gear linkage adjustable two-stage radial rotational flow standard model burner as claimed in claim 1, wherein the inner wall of the outer side cavity annular outer wall surface and the outer wall of the outer side cavity contracted inner cylinder wall surface form a first compression passage; the inner wall of the outer top cover body and the outer wall of the rotational flow interaction distance adjusting body form an annular channel; the annular outer wall surface of the inner cavity, the inner wall of the air inlet section of the inner cavity and the outer wall of the wall surface of the inner cylinder contracted by the inner cavity form a second compression channel.
3. The two-stage radial rotational flow standard model burner based on the central rotational flow gear linkage adjustable according to claim 1 or 2, wherein corners of inner walls of annular outer wall surfaces of the outer side cavity and the inner side cavity are in smooth transition of curved surfaces; the outer walls of the contracting inner cylinder wall surfaces of the outer side cavity and the inner side cavity are smooth curved surfaces, and the cross sectional areas of the outer walls are increased from bottom to top, so that the corresponding first compression passage and the corresponding second compression passage become contracting passages, and the gas flowing into the outer stage rotational flow air inlet or the gas flowing into the inner side cavity air inlet section is accelerated.
4. The two-stage radial swirl standard model burner based on central swirl gear linkage adjustable according to claim 1 or 2, wherein the outer wall surface of the inner contracting cylinder of the outer cavity and the inner cavity is provided with steps to install an annular honeycomb plate to further improve the flow quality.
5. The two-stage radial swirl standard model burner based on central swirl gear linkage adjustable according to claim 1 or 2, wherein the bottom of the swirl interaction distance adjusting body is provided with an annular groove for matching with an annular bulge at the top of the annular outer wall surface of the inner cavity to ensure the coaxiality of installation.
6. The two-stage radial cyclone standard model burner based on central cyclone gear linkage adjustable according to claim 1, wherein a plurality of cyclone blades with the same deflection angle are arranged on the outer cyclone generating device.
7. The two-stage radial cyclone standard model burner based on central cyclone gear linkage adjustable according to claim 1, wherein the bottom of the large gear of the central cyclone is provided with a central control shaft flat key pin, and the central control shaft flat key pin corresponds to the shape of the inner hole of the large gear of the central cyclone, so that the central cyclone blade control rotating shaft can drive the large gear of the central cyclone to rotate without relative movement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210200940.XA CN114413280B (en) | 2022-03-02 | 2022-03-02 | Two-stage radial rotational flow standard model burner based on central rotational flow gear |
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| CN202210200940.XA CN114413280B (en) | 2022-03-02 | 2022-03-02 | Two-stage radial rotational flow standard model burner based on central rotational flow gear |
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| CN114413280B true CN114413280B (en) | 2022-11-08 |
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| CN101666489A (en) * | 2009-09-28 | 2010-03-10 | 西安交通大学 | Combustion device of petroleum coke slurry |
| CN109442403A (en) * | 2018-11-21 | 2019-03-08 | 中国科学院工程热物理研究所 | Bispin burner and its method for controlling combustion |
| CN110715321A (en) * | 2019-09-29 | 2020-01-21 | 中国航发沈阳发动机研究所 | Swirler with adjustable throat area |
| CN210345452U (en) * | 2019-07-10 | 2020-04-17 | 青岛宁普热能设备有限公司 | Secondary rotational flow burner |
| CN113864822A (en) * | 2021-10-13 | 2021-12-31 | 西北工业大学 | Machining ring type prefilming swirler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102245798B1 (en) * | 2019-09-17 | 2021-04-28 | 두산중공업 주식회사 | Fuel nozzle assembly and combustor for gas turbine including the same |
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2022
- 2022-03-02 CN CN202210200940.XA patent/CN114413280B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666489A (en) * | 2009-09-28 | 2010-03-10 | 西安交通大学 | Combustion device of petroleum coke slurry |
| CN109442403A (en) * | 2018-11-21 | 2019-03-08 | 中国科学院工程热物理研究所 | Bispin burner and its method for controlling combustion |
| CN210345452U (en) * | 2019-07-10 | 2020-04-17 | 青岛宁普热能设备有限公司 | Secondary rotational flow burner |
| CN110715321A (en) * | 2019-09-29 | 2020-01-21 | 中国航发沈阳发动机研究所 | Swirler with adjustable throat area |
| CN113864822A (en) * | 2021-10-13 | 2021-12-31 | 西北工业大学 | Machining ring type prefilming swirler |
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