CN114992670A - Stress application integrated support plate with variable mixing function - Google Patents
Stress application integrated support plate with variable mixing function Download PDFInfo
- Publication number
- CN114992670A CN114992670A CN202210520796.8A CN202210520796A CN114992670A CN 114992670 A CN114992670 A CN 114992670A CN 202210520796 A CN202210520796 A CN 202210520796A CN 114992670 A CN114992670 A CN 114992670A
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- China
- Prior art keywords
- support plate
- ring
- adjusting sheet
- driving gear
- variable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
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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
- F23R3/26—Controlling the air flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention provides a stress application integrated support plate with a variable mixing function, which comprises: the flow dividing outer ring and the flow dividing inner ring are connected through a hollow support plate; the driving adjusting sheet and the driven adjusting sheet are symmetrically arranged on two sides of the hollow support plate and can rotate, a driving gear is fixedly arranged at the upper end of the driving adjusting sheet, a driven gear is fixedly arranged at the upper end of the driven adjusting sheet, and the driving gear is meshed with the driven gear; and the linkage ring assembly is connected with the driving gear and can drive the driving gear to rotate. The embodiment of the invention can improve the radial distribution of oxygen in the content and improve the combustion efficiency of the afterburner.
Description
Technical Field
The invention relates to the technical field of aero-engines, in particular to a stress application integrated support plate with a variable mixing function.
Background
The variable cycle engine can meet the contradictory requirements that the unit thrust requirement of the advanced tactical fighter is high in a high-power state and the oil consumption rate requirement is low in a cruising state, so that the combat radius of the fighter is expanded on the premise of ensuring the maneuverability. The variable cycle engine afterburner mainly adjusts the proportion of the airflow of the outer duct and the inner duct through the rear duct ejector so as to match the requirements of the engine on the duct ratio in different working modes and realize the fuel economy under the comprehensive flight cycle.
The engine has the advantages of improving the requirements of backward stealth and low flow resistance, and the stress application integrated support plate with the turbine rear bearing frame has obvious advantages in stealth performance, low flow resistance loss and structural compactness. When the afterburner adopting the integrated support plate design adopts the conventional rear duct ejector arranged on the inner and outer duct splitter rings, the pressure loss is large when the mixing of the outer duct air is deep, the proportion of participating in combustion is low when the mixing is shallow, the full combustion is not facilitated, and the oil consumption rate of an engine is increased. .
Disclosure of Invention
In view of this, the embodiments of the present disclosure provide a stressing integrated support plate with a variable blending function, so as to solve the technical problem in the prior art that the blending pressure loss and the combustion efficiency are contradictory to each other.
The embodiment of the specification provides the following technical scheme: a stress application integrated support plate with variable blending function comprises: the flow dividing outer ring and the flow dividing inner ring are connected through a hollow support plate; the driving adjusting sheet and the driven adjusting sheet are symmetrically arranged on two sides of the hollow support plate and can rotate, a driving gear is fixedly arranged at the upper end of the driving adjusting sheet, a driven gear is fixedly arranged at the upper end of the driven adjusting sheet, and the driving gear is meshed with the driven gear; and the linkage ring assembly is connected with the driving gear and can drive the driving gear to rotate.
Further, the link ring assembly includes: the linkage ring is arranged on the outer side of the shunting outer ring and can rotate relative to the shunting outer ring along the circumferential direction; one end of the rocker arm is hinged with the link ring through a link ring rotating shaft, and the other end of the rocker arm is connected with the driving gear through a driving adjusting sheet shaft.
Furthermore, a casing is arranged on the outer side of the shunting outer ring, and the stress application integrated support plate with the variable mixing function further comprises a driving part which is arranged on the outer side of the casing and connected with the linkage ring to drive the linkage ring to rotate.
Furthermore, cooling holes are formed in two opposite side walls of the active adjusting sheet and the passive adjusting sheet.
Further, the hollow support plate is provided with cooling holes.
Furthermore, the number of the hollow support plates is 10-20, and the hollow support plates are uniformly distributed at intervals along the circumferential direction of the shunting inner ring.
Furthermore, the active adjusting sheet of each hollow support plate is connected with the linkage ring assembly.
Compared with the prior art, the embodiment of the specification adopts at least one technical scheme which can achieve the beneficial effects that at least: the invention can realize the control of the flow area of the mixing channel of the integrated afterburner, thereby realizing the adjustment of the mixing proportion of low-temperature air and high-temperature fuel gas, ensuring the cooling and gas utilization of hot end components of the afterburner under the bypass ratio of an inlet bypass in a certain range, simultaneously mixing the rest bypass low-temperature air into the bypass channel, increasing the oxygen content of the bypass, improving the radial distribution of the oxygen of the bypass and improving the combustion efficiency of the afterburner.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a perspective view of an embodiment of the present invention;
fig. 2 is a radial view of an embodiment of the invention.
Reference numbers in the figures: 1. a case; 2. a shunting outer ring; 3. a shunt inner ring; 4. a hollow support plate; 5. a link ring; 6. a link ring shaft; 7. a rocker arm; 8. actively adjusting the sheet axis; 9. a driving gear; 10. an active adjustment tab; 11. a driven gear; 12. a passive adjustment tab; 13. a culvert channel; 14. a culvert channel; 15. a support plate cavity; 16. an intermixed airflow path; 17. blending the gas stream.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a force application integrated support plate with a variable blending function, which includes a shunt outer ring 2, a shunt inner ring 3, an active adjusting sheet 10, a passive adjusting sheet 12, and a linkage ring assembly. The shunt outer ring 2 and the shunt inner ring 3 are connected through a hollow support plate 4; the active adjusting sheet 10 and the passive adjusting sheet 12 are symmetrically arranged on two sides of the hollow support plate 4 and can rotate, a driving gear 9 is fixedly arranged at the upper end of the active adjusting sheet 10, a passive gear 11 is fixedly arranged at the upper end of the passive adjusting sheet 12, and the driving gear 9 and the passive gear 11 are in meshed connection; the linkage ring assembly is connected with the driving gear 9 and can drive the driving gear 9 to rotate.
The invention can realize the control of the flow area of the mixing channel of the integrated afterburner, thereby realizing the adjustment of the mixing proportion of low-temperature air and high-temperature fuel gas, ensuring the cooling air of the hot end component of the afterburner under a certain range of inlet culvert ratio, simultaneously mixing the rest culvert low-temperature air into the culvert channel, increasing the content of culvert oxygen, improving the radial distribution of the culvert oxygen and improving the combustion efficiency of the afterburner.
The link ring assembly includes a link ring 5 and a rocker arm 7. The linkage ring 5 is arranged on the outer side of the flow dividing outer ring 2 and can rotate relative to the flow dividing outer ring 2 along the circumferential direction; one end of the rocker arm 7 is hinged with the linkage ring 5 through a linkage ring rotating shaft 6, and the other end of the rocker arm 7 is connected with a driving gear 9 through a driving adjusting sheet shaft 8.
A plurality of linkage ring rotating shafts 6 are installed on the linkage ring 5, one end of the rocker arm 7 is sleeved on the linkage ring rotating shafts 6, the other end of the rocker arm is fixedly connected with an active adjusting sheet shaft 8 arranged on an active adjusting sheet 10, the active adjusting sheet shaft 8 and the active adjusting sheet 10 are designed in an integrated mode, a driving gear 9 is fixedly installed at the top end of the active adjusting sheet shaft 8, a driven gear 11 is fixedly installed at the top end of a driven adjusting sheet 12, and the driving gear 9 and the driven gear are meshed with each other.
The outer side of the flow dividing outer ring 2 is further provided with a casing 1, and the stress application integrated support plate with the variable mixing function further comprises a driving part, wherein the driving part is arranged on the outer side of the casing 1 and connected with a linkage ring 5 to drive the linkage ring 5 to rotate.
The casing 1, the shunting outer ring 2 and the shunting inner ring 3 are all annular plates, the casing 1 and the shunting outer ring 2 form an outer culvert channel 13, and the shunting outer ring 2 and the shunting inner ring 3 form an inner culvert channel 14.
Preferably, the hollow support plate 4 is provided with cooling holes. The active adjusting piece 10 and the passive adjusting piece 12 are both provided with cooling holes.
It should be noted that the hollow support plates 4 are hollow cylinders, the number of the hollow support plates 4 is 10 to 20, the plurality of hollow support plates 4 are uniformly distributed along the circumferential direction of the shunt inner ring 3 at intervals, the top ends of the hollow support plates are connected with the shunt outer ring 2, the bottom ends of the hollow support plates are connected with the shunt inner ring 3, the support plate cavities 15 are communicated with the flow path of the bypass channel 13, and the active adjusting pieces 10 of each hollow support plate 4 are connected with the linkage ring assembly.
The air flow proportion adjusting principle of the stress application integrated support plate with the variable mixing function is as follows:
the outer profiles of the active and passive adjusting blades 10 and 12 form a blending air flow channel 16 with the profile of the integrated support plate. Part of the low-temperature air circulating in the culvert channel 13 is the mixed air flow 17, and the mixed air flow 17 flows through the support plate cavity 15 and then enters the culvert channel 14 from the mixed air flow channel 16 to participate in combustion.
When the linkage ring 5 makes spiral motion, the rocker arm 7 arranged on the linkage ring rotating shaft 6 is driven to rotate, the rocker arm 7, the active adjusting sheet 10 and the driving gear 9 synchronously rotate together, and when the driving gear 9 rotates, the driven gear 11 meshed with the driving gear rotates in the opposite direction to drive the passive adjusting sheet 12 to rotate. At this time, the flow area of the mixed air flow passage 16 is changed, and the flow rate of the mixed air flow 17 is changed accordingly.
When the low-temperature air flow in the bypass channel 13 exceeds the expectation, the linkage ring 5 makes left-handed screw motion on the flow direction visual angle to drive the active adjusting sheet 10 and the passive adjusting sheet 12 to rotate, the flow area of the mixed air flow channel 16 is increased, the flow of the mixed air flow 17 is increased, the flow loss of an afterburner is reduced, the oxygen content in the bypass channel 14 is increased, and the combustion is assisted.
When the low-temperature air flow in the bypass channel 13 is lower than expected, the linkage ring 5 makes right-handed spiral motion on the flow direction view angle to drive the active adjusting sheet 10 and the passive adjusting sheet 12 to rotate, the flow area of the mixed air flow channel 16 is reduced, the flow of the mixed air flow 17 is reduced, and the afterburner cooling is ensured.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (7)
1. A stress application integrated support plate with a variable mixing function is characterized by comprising:
the flow dividing outer ring (2) and the flow dividing inner ring (3) are connected through a hollow support plate (4);
the active adjusting sheet (10) and the passive adjusting sheet (12) are symmetrically arranged on two sides of the hollow support plate (4) and can rotate, a driving gear (9) is fixedly arranged at the upper end of the active adjusting sheet (10), a driven gear (11) is fixedly arranged at the upper end of the passive adjusting sheet (12), and the driving gear (9) is meshed with the driven gear (11);
and the linkage ring assembly is connected with the driving gear (9) and can drive the driving gear (9) to rotate.
2. The force application integrated strip with variable blending capability of claim 1, wherein said linkage ring assembly comprises:
the linkage ring (5) is arranged on the outer side of the shunting outer ring (2) and can rotate relative to the shunting outer ring (2) along the circumferential direction;
one end of the rocker arm (7) is hinged with the link ring (5) through a link ring rotating shaft (6), and the other end of the rocker arm (7) is connected with the driving gear (9) through a driving adjusting sheet shaft (8).
3. The stressing integration plate with variable mixing function according to claim 2, wherein the outer side of the outer splitter ring (2) is further provided with a casing (1), and the stressing integration plate with variable mixing function further comprises a driving part which is arranged on the outer side of the casing (1) and is connected with the linkage ring (5) to drive the linkage ring (5) to rotate.
4. The stress application integrated support plate with variable blending function according to claim 1, wherein cooling holes are arranged on two opposite side walls of the active adjusting plate (10) and the passive adjusting plate (12).
5. Stressing integrated plate with variable blending function according to claim 1, characterized by that the hollow plate (4) is provided with cooling holes.
6. The stress application integrated support plate with the variable mixing function according to claim 1, wherein the number of the hollow support plates (4) is 10 to 20, and a plurality of the hollow support plates (4) are uniformly distributed at intervals along the circumferential direction of the flow dividing inner ring (3).
7. The force application integrated support plate with variable blending function according to claim 6, wherein the active adjustment flap (10) of each hollow support plate (4) is connected with a linkage ring assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210520796.8A CN114992670B (en) | 2022-05-12 | 2022-05-12 | Stress application integrated support plate with variable blending function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210520796.8A CN114992670B (en) | 2022-05-12 | 2022-05-12 | Stress application integrated support plate with variable blending function |
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| Publication Number | Publication Date |
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| CN114992670A true CN114992670A (en) | 2022-09-02 |
| CN114992670B CN114992670B (en) | 2023-06-13 |
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| CN202210520796.8A Active CN114992670B (en) | 2022-05-12 | 2022-05-12 | Stress application integrated support plate with variable blending function |
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| CN114992670B (en) | 2023-06-13 |
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