CN114810215A - Rotatable guide vane based on electromagnetic control - Google Patents
Rotatable guide vane based on electromagnetic control Download PDFInfo
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- CN114810215A CN114810215A CN202210386761.XA CN202210386761A CN114810215A CN 114810215 A CN114810215 A CN 114810215A CN 202210386761 A CN202210386761 A CN 202210386761A CN 114810215 A CN114810215 A CN 114810215A
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- 210000001015 abdomen Anatomy 0.000 claims description 17
- 230000005389 magnetism Effects 0.000 claims description 11
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a rotatable guide vane based on electromagnetic control, which comprises a rotatable air inlet front edge, a bendable blade web, a bendable blade back, a rotatable air outlet tail edge and a magnetic suction module, wherein the bendable blade web and the bendable blade back are fixedly arranged on the rotatable air inlet front edge and the rotatable air outlet tail edge, and the magnetic suction module is connected with the rotatable air inlet front edge and the rotatable air outlet tail edge. The invention discloses a rotatable guide vane based on electromagnetic control, which controls vanes to be in different states through a magnet module so as to adapt to different air inlet angles and further provide different lifting forces, and can adjust the air inlet angles and provide more appropriate and stable inflow conditions for downstream.
Description
Technical Field
The invention relates to impeller machinery, belongs to the field of pneumatic control, and particularly relates to a rotatable guide vane based on electromagnetic control.
Background
In the aerodynamic field, the guide vanes primarily function to smoothly direct the ambient airflow to the inlet of the downstream component. For example, in an aircraft engine, inlet guide vanes direct the outside air flow to the downstream compressor inlet. This requires that the derivative leaf have two properties: firstly, different air inlet angles are adapted. And secondly, stable inlet conditions can be provided for the downstream.
At present, the guide vanes in the field are generally fixed vanes, namely, after the design is determined, the shapes and the angles of the vanes are not adjustable. The other technology is that the blades are taken as a whole, and the placing angles of the blades are directly adjusted. The fixed guide vane has a simple structure, but can only adapt to one air inlet working condition, and the adaptability under other air inlet working conditions is poor. Not only can not adapt to the angle of the inlet airflow, but also can not adjust the angle of the outlet airflow. Although the rotatable inlet guide vane can adapt to different inlet angles, the outlet angle of the airflow can also change along with the change of the rotation angle, and stable inlet conditions cannot be provided for the downstream.
Disclosure of Invention
The invention provides a rotatable guide vane based on electromagnetic control, which aims to overcome the defects that the structure of a fixed guide vane in the field is simple, the applicable air inlet working condition is single, and the adaptability under other air inlet working conditions is poor; the limitation that the angle of the inlet airflow cannot be adapted to and the airflow angle of the outlet cannot be adjusted; the existing rotatable inlet guide vane can adapt to different inlet angles, but the outlet angle of the airflow of the rotatable inlet guide vane can also change along with the change of the rotating angle, and the problem that stable inlet conditions cannot be provided for the downstream is solved.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a but rotary stator based on electromagnetic control, includes rotatable leading edge, flexible blade belly, flexible blade back, rotatable tail edge of giving vent to anger and inhales the module, flexible blade belly and flexible blade back fixed mounting are on rotatable leading edge of giving vent to anger and rotatable tail edge of giving vent to anger, and magnetism is inhaled the module and is connected with rotatable leading edge of giving vent to anger and rotatable tail edge of giving vent to anger.
Furthermore, the bendable blade belly and the bendable blade back can be fixedly arranged on the rotatable air inlet front edge and the rotatable air outlet tail edge through welding or screws.
Furthermore, the flexible blade belly and the flexible blade back are made of 60Si2Mn spring steel.
Further, the magnetic suction module is connected with the rotatable air inlet front edge and the rotatable air outlet tail edge through hinges.
Furthermore, the module is inhaled to magnetism is inside to be equipped with the electro-magnet, adopts direct current sucking disc formula electro-magnet, and the stationary blade that the thickness is 1mm is installed to the electro-magnet does not produce magnetic force one side.
The invention has the beneficial effects that:
the invention discloses a rotatable guide vane based on electromagnetic control, which comprises a rotatable air inlet front edge, a bendable blade belly, a bendable blade back, a rotatable air outlet tail edge and a magnetic module, wherein the blades are controlled to be in different states through the on-off of the magnetic module so as to adapt to different air inlet angles and further provide different lifting forces, and meanwhile, the air inlet angles can be adjusted to provide more appropriate and stable inflow conditions for downstream.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a guide vane structure capable of adjusting inlet and outlet flow angles according to the present invention;
FIG. 2 is a schematic view of a magnetic module according to the present invention;
FIG. 3 is a front view of the magnetic module, the rotatable air inlet leading edge and the rotatable air outlet trailing edge connection structure of the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a bottom view of FIG. 3;
FIG. 6 is a comparison of vane configurations for the front and rear airfoil vanes of the present invention when energized;
FIG. 7 is a graph comparing total pressure loss (Cpt) at the exit of a variable airfoil vane according to the present invention.
In the figure: 1. an air intake leading edge; 2. the leaf belly; 3. leaf back; 4. a trailing edge of the air outlet; 5. a magnetic module; 6. an electromagnet; 7. a sheet is fixed.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a rotatable stator based on electromagnetic control, as shown in fig. 1, a rotatable stator based on electromagnetic control includes rotatable air inlet leading edge 1, flexible blade belly 2, flexible blade back 3, rotatable air outlet trailing edge 4 and magnetism module 5 of inhaling, flexible blade belly 2 and flexible blade back 3 fixed mounting are on rotatable air inlet leading edge 1 and rotatable air outlet trailing edge 4, and the one end of magnetism module 5 is inhaled with rotatable air inlet leading edge 1 and is connected, and magnetism module 5's the other end is inhaled with rotatory air outlet trailing edge 4 and is connected.
The guide vanes are generally fixed vanes, and after the guide vanes are designed and determined, the shapes and angles of the vanes are not adjustable, so that the guide vanes can only adapt to one air inlet working condition, and the guide vanes are poor in adaptability under other air inlet working conditions, so that the guide vanes cannot adapt to the angle of inlet airflow and cannot adjust the angle of outlet airflow. Rotatable import stator is though can direct adjustment blade put the angle, and then adapts to different inlet angle, but the exit angle of its air current also can follow the change of rotation angle and change, can't provide stable import condition for the low reaches.
Based on above-mentioned design original intention, adopt rotatable leading edge 1 that admits air, flexible leaf abdomen 2, flexible leaf back 3, rotatable tail edge 4 and magnetism to inhale module 5, through the break-make of magnetism module 5 of inhaling, and then control the blade and be in different states to adapt to different angles of admitting air, and then provide different lift, can adjust the angle of admitting air simultaneously, provide more suitable, stable incoming flow condition for the low reaches.
In a specific embodiment, the bendable blade belly 2 and the bendable blade back 3 can be fixedly installed on the rotatable air inlet front edge 1 and the rotatable air outlet tail edge 4 through welding or screws, and the integrity of the structural framework is guaranteed.
In a specific embodiment, the flexible blade belly 2 and the flexible blade back 3 both use 60Si2Mn spring steel, which on one hand guarantees the original shape when attracted without magnetic force and on the other hand guarantees the bending deformation when subjected to magnetic force.
In a specific embodiment, the magnetic suction module 5 is connected with the rotatable air inlet leading edge 1 and the rotatable air outlet trailing edge 4 through hinges, and when the bendable blade web 2 and the bendable blade back 3 are bent by an electromagnetic force, the rotatable air inlet leading edge 1 and the rotatable air outlet trailing edge 4 rotate through hinges.
In a specific embodiment, as shown in fig. 2 to 4, eight electromagnets 7 are placed in the magnetic module 5, a fixing plate 6 with a thickness of 1mm is placed on one side of the electromagnet 7 not generating magnetic force for fixing the electromagnet 7, as shown in fig. 5, the magnetic module is divided into two sides a, B, C and D, each side is provided with four electromagnets 7, a part A, B is used for attracting the bendable blade back 3, the fixing plate 6 is installed on one side of the electromagnet 7 close to the blade back 2, a part C, D is used for attracting the bendable blade back 2, and the fixing plate 6 is installed on one side of the electromagnet 7 close to the blade back 3, so that double-side independent control is realized.
In a specific embodiment, as shown in fig. 6, when a and B are powered on, the magnetic attraction module 5 attracts the blade back 3 by magnetic force to drive the rotatable air inlet leading edge 1 and the rotatable air outlet trailing edge 4 to deflect upwards; when C, D circular telegram, the blade belly 2 receives the magnetic attraction, drives rotatable leading edge 1 and the tail edge 4 of giving vent to anger of admitting air downwards and deflects, and when magnetism was inhaled module 5 outage, the leaf back 3 or the leaf back 2 keep original form, rotatable leading edge 1 and the tail edge 4 of giving vent to anger of admitting air do not deflect.
In the present design, the deflection angle toward the blade belly 2 side is defined as "-", and the deflection angle toward the blade back 3 side is defined as "+".
In the specific embodiment, as shown in table 1 below, taking the side of the blade back 3 as an example, the uniform load of the blade back 3 is q, Wmax is the maximum deflection 3mm, that is, the maximum reduction of the middle part of the blade back 3 is about 3mm when the front and rear edges deflect 10 °. The uniformly distributed load calculation formula is as follows:
the elastic modulus E, I of Wmax, 60Si2Mn spring steel is known as the moment of inertia:
wherein h is the height of the blade back steel sheet; b is the thickness L of the blade back steel sheet; is the length of the blade back steel sheet.
The parameters of the direct current sucker type electromagnet in the embodiment are as follows: the model is as follows: p20/15, voltage: DC12V, suction force 2.5kg, outer diameter 20mm, inner diameter 7.8mm, thickness 15mm, screw mounting hole diameter 3mm, screw mounting hole depth 6 mm. The uniform load calculation parameters are as follows:
TABLE 1 calculation table for uniform load distribution
The attraction force of each magnet can reach 2.5 × 9.8 ═ 24.5N, and four magnets are adopted at one side of the device, so that 98N force can be generated totally, which is far greater than the uniform load, and the bending of the blade back and the blade belly can be easily realized.
Further, when A, B is powered on simultaneously, the bendable blade back 3 is attracted by electromagnetic force to bend upwards, so as to drive the rotatable leading air inlet edge 1 and the rotatable trailing air outlet edge 4 to deflect, and at this time, the rotatable leading air inlet edge 1 and the rotatable trailing air outlet edge 4 can generate +10 ° deflection. C, D when simultaneously energized, the flexible blade 2 is attracted by electromagnetic force and bends downward to drive the rotary leading air edge 1 and the rotary trailing air edge 4 to deflect, and the leading edge and the trailing edge can deflect by-10 degrees.
The blade pressure loss test data is as follows: as shown in fig. 7, when the incoming flow i is ± 30 °, the total pressure loss coefficient Cpt of the prototype blade (Ori) is 0.024, and the total pressure loss coefficient Cpt of the modified blade (10 ° -OPT) is 0.020; when the incoming flow i is +/-40 degrees, the total pressure loss coefficient Cpt of the prototype blade (Ori) is 0.211, and the total pressure loss coefficient Cpt of the modified blade (10-OPT) is 0.081; when the incoming flow i is +/-45 degrees, the total pressure loss coefficient Cpt of the original blade (Ori) is 0.468, and the total pressure loss coefficient Cpt of the modified blade (10-OPT) is 0.157, so that the smaller the total pressure loss coefficient of the modified blade is, the more obvious the optimization result is when the flow angle is larger.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a but rotary stator based on electromagnetic control, its characterized in that includes, rotatable air inlet leading edge (1), flexible blade belly (2), flexible blade back (3), rotatable air outlet trailing edge (4) and magnetism inhale module (5), blade belly (2) and blade back (3) relative fixed mounting in air inlet leading edge (1) with on air outlet trailing edge (4), the one end of magnetism inhale module (5) with air inlet leading edge (1) is connected, the other end of magnetism inhale module (5) with air outlet trailing edge (4) are connected.
2. The rotatable guide vane based on electromagnetic control of claim 1, characterized in that the blade belly (2) and the blade back (3) are fixedly mounted on the leading air inlet edge (1) and the trailing air outlet edge (4) by welding or screwing.
3. Rotatable guide vane based on electromagnetic control according to claim 1, characterized in that the magnetic attraction module (5) is connected with the leading inlet edge (1) and the trailing outlet edge (4) by hinges.
4. Rotatable guide vane based on electromagnetic control according to claim 2, characterized in that the blade flank (2) and the blade back (3) are both made of spring steel.
5. Rotatable guide vane based on electromagnetic control according to claim 3, characterized in that the magnetic module (5) is internally provided with an electromagnet (7); and a fixing sheet (6) is arranged on one side of the electromagnet (7) which does not generate magnetic force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210386761.XA CN114810215B (en) | 2022-04-13 | 2022-04-13 | Rotatable guide vane based on electromagnetic control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210386761.XA CN114810215B (en) | 2022-04-13 | 2022-04-13 | Rotatable guide vane based on electromagnetic control |
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| Publication Number | Publication Date |
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| CN114810215A true CN114810215A (en) | 2022-07-29 |
| CN114810215B CN114810215B (en) | 2024-05-03 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7491030B1 (en) * | 2006-08-25 | 2009-02-17 | Florida Turbine Technologies, Inc. | Magnetically actuated guide vane |
| CN103982098A (en) * | 2013-02-08 | 2014-08-13 | 廖奕帆 | Iron plate adsorption structure of electromagnetic door lock |
| US20150361819A1 (en) * | 2014-01-24 | 2015-12-17 | United Technologies Corporation | Virtual multi-stream gas turbine engine |
| CN105332952A (en) * | 2015-11-02 | 2016-02-17 | 南京航空航天大学 | Small-bend adjustable stator design method |
| CN105715585A (en) * | 2014-12-05 | 2016-06-29 | 上海电气集团股份有限公司 | Variable geometric outlet vane |
| CN106870449A (en) * | 2017-04-24 | 2017-06-20 | 浙江理工大学 | The centrifugal ventilation machine device of adjustable vane |
| CN107725482A (en) * | 2016-08-10 | 2018-02-23 | 上海电气燃气轮机有限公司 | Improve the sectional-regulated exit guide blade and its governor motion of compressor off design performance |
| CN113323816A (en) * | 2021-06-09 | 2021-08-31 | 东方电气集团科学技术研究院有限公司 | Blade detection method based on blade load analysis |
-
2022
- 2022-04-13 CN CN202210386761.XA patent/CN114810215B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7491030B1 (en) * | 2006-08-25 | 2009-02-17 | Florida Turbine Technologies, Inc. | Magnetically actuated guide vane |
| CN103982098A (en) * | 2013-02-08 | 2014-08-13 | 廖奕帆 | Iron plate adsorption structure of electromagnetic door lock |
| US20150361819A1 (en) * | 2014-01-24 | 2015-12-17 | United Technologies Corporation | Virtual multi-stream gas turbine engine |
| CN105715585A (en) * | 2014-12-05 | 2016-06-29 | 上海电气集团股份有限公司 | Variable geometric outlet vane |
| CN105332952A (en) * | 2015-11-02 | 2016-02-17 | 南京航空航天大学 | Small-bend adjustable stator design method |
| CN107725482A (en) * | 2016-08-10 | 2018-02-23 | 上海电气燃气轮机有限公司 | Improve the sectional-regulated exit guide blade and its governor motion of compressor off design performance |
| CN106870449A (en) * | 2017-04-24 | 2017-06-20 | 浙江理工大学 | The centrifugal ventilation machine device of adjustable vane |
| CN113323816A (en) * | 2021-06-09 | 2021-08-31 | 东方电气集团科学技术研究院有限公司 | Blade detection method based on blade load analysis |
Non-Patent Citations (1)
| Title |
|---|
| 辛建池: "离心压缩机进口可调导叶尾缘自诱导吹气数值研究", 东北大学学报, vol. 39, no. 7, 31 July 2018 (2018-07-31), pages 1011 - 1016 * |
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