CN114659137B - Cyclone and power device - Google Patents

Cyclone and power device Download PDF

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Publication number
CN114659137B
CN114659137B CN202210249087.0A CN202210249087A CN114659137B CN 114659137 B CN114659137 B CN 114659137B CN 202210249087 A CN202210249087 A CN 202210249087A CN 114659137 B CN114659137 B CN 114659137B
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China
Prior art keywords
cover plate
connecting part
cyclone
blade
driving wheel
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CN202210249087.0A
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Chinese (zh)
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CN114659137A (en
Inventor
柳伟杰
苏贺
薛然然
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China Aero Engine Research Institute
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China Aero Engine Research Institute
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Publication of CN114659137A publication Critical patent/CN114659137A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04Air inlet arrangements
    • F23R3/10Air inlet arrangements for primary air
    • F23R3/12Air inlet arrangements for primary air inducing a vortex
    • F23R3/14Air inlet arrangements for primary air inducing a vortex by using swirl vanes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/14Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/26Controlling the air flow

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cyclones (AREA)

Abstract

The present disclosure provides a cyclone and a power plant, wherein the cyclone comprises a casing, a driving wheel, a plurality of blades and a plurality of transmission components; the driving wheel is rotatably arranged on the casing; each blade is rotationally arranged in the casing; the transmission assembly is provided with a first connecting part and a second connecting part, each blade is correspondingly and rotatably connected with the first connecting part of one transmission assembly, and the second connecting part of each transmission assembly is rotatably connected with the driving wheel. The cyclone can realize the adjustable blade angle, and improve and optimize the shape and flame structure of the flow field of the combustion chamber of the power device.

Description

Cyclone and power device
Technical Field
The present disclosure relates to the field of power devices, and more particularly, to a cyclone and a power device.
Background
Combustion chambers of power plants such as aeroengines and gas turbines generally employ airflow swirls to stabilize the flame. The cyclone is used to convert a non-cyclonic airflow into a cyclonic airflow. As the incoming flow conditions of the combustion chamber change greatly under different load working conditions, the existing swirler cannot adapt to the change of the load working conditions, so that the combustion organization in the combustion chamber is not always in an optimal state.
Disclosure of Invention
The utility model provides a swirler and power device realizes that blade angle is adjustable, can promote optimizing power device's combustor flow field form and flame structure.
In a first aspect, the present disclosure provides a swirler comprising a housing, a drive wheel, a plurality of vanes, and a plurality of drive assemblies; the driving wheel is rotatably arranged on the casing; each blade is rotatably mounted in the casing; the transmission assembly is provided with a first connecting part and a second connecting part, each blade is correspondingly and rotatably connected with the first connecting part of one transmission assembly, and the second connecting part of each transmission assembly is rotatably connected with the driving wheel.
In one embodiment, the casing comprises a first cover plate and a second cover plate which are oppositely arranged, and a plurality of blades are positioned between the first cover plate and the second cover plate; the driving wheel is positioned on one side of the first cover plate, which is far away from the second cover plate;
each blade is provided with a blade body, a first rotating shaft and a second rotating shaft which are respectively arranged at two sides of the blade body, and the axial leads of the first rotating shaft and the second rotating shaft are the same; each first rotating shaft penetrates through the first cover plate along the axial direction of the first cover plate; each second rotating shaft is rotatably connected to the second cover plate;
the first connecting part of each transmission rod assembly is correspondingly connected with a part of one first rotating shaft penetrating out of the first cover plate.
In one embodiment, the first cover plate is arranged parallel to the second cover plate, and the first cover plate is connected to the second cover plate by a cover plate support.
In one embodiment, the end portion of the first rotating shaft is provided with a clamping structure, and the first connecting portion is provided with a bayonet matched with the clamping structure.
In one embodiment, the outer side of the first cover plate has a drive support shaft, on which the drive wheel is rotatably mounted.
In one embodiment, the transmission assembly includes a driver and a follower; one end of the driving piece is the second connecting part, and one end of the driven piece is the first connecting part; one end of the driving piece, which is far away from the second connecting part, is rotationally connected with one end of the driven piece, which is far away from the first connecting part.
In one embodiment, a plurality of said blades are evenly spaced along the circumference of said drive wheel.
In one embodiment, the blade is any one of an airfoil structural blade, a flat structural blade, and a curved structural blade;
the number of the blades is N, and N is more than or equal to 8 and less than or equal to 20.
In a second aspect, the present disclosure provides a power plant comprising a cyclone as described above.
Compared with the prior art, the cyclone disclosed by the invention is provided with the driving wheel, the driving wheel is rotationally arranged on the casing of the cyclone, and each blade of the cyclone is correspondingly and rotationally connected with the driving wheel through a transmission assembly. Through rotating the driving wheel, the driving wheel can drive the blade to rotate through the transmission component, so that blade angle adjustment is realized, through adjusting the blade angle of the cyclone, the form and flame structure of a combustion chamber flow field of a power device can be optimized, the heat release space position is adjusted, the combustion chamber performance is improved, combustion tissue optimization is realized, the combustion efficiency is improved, the stable operation boundary of the combustion chamber is widened, the ignition and flameout performance of the combustion chamber is improved, and the temperature distribution quality of an outlet of the combustion chamber is improved. The dynamic response characteristic of flame can be changed by adjusting the blade angle of the cyclone, so that the pressure and the flame pulsation amplitude are reduced, and the active control of combustion instability is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 illustrates a schematic partial cross-sectional structure of a cyclone of an embodiment of the disclosure;
FIG. 2 shows a schematic structural view of a first cover plate of an embodiment of the present disclosure;
FIG. 3 shows a schematic structural view of a second cover plate of an embodiment of the present disclosure;
FIG. 4 illustrates a schematic structural view of a blade according to an embodiment of the present disclosure;
FIG. 5 shows a schematic structural view of a driver of an embodiment of the present disclosure;
FIG. 6 illustrates a schematic structural view of a follower of an embodiment of the present disclosure;
FIG. 7 illustrates a schematic view of a blade position with a large blade angle in an embodiment of the present disclosure;
FIG. 8 illustrates a schematic view of blade position with a smaller blade angle in an embodiment of the present disclosure.
In the figure:
a casing 100; a driving wheel 200; a blade 300; a transmission assembly 400; a first cover plate 110; a first shaft hole 111; a first mounting hole 112; a second cover plate 120; a second shaft hole 121; a second mounting hole 122; a cover plate support 130; a first rotation shaft 310; a second rotation shaft 320; the clamping structure 311; a first connection portion 401; a second connection 402; a driving member 410; a follower 420; driving the support shaft 1101; swirl outlet 1201; bayonet 4011.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure have been shown in the accompanying drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below. It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between different devices, components, or arrangements and not necessarily for defining the order or interdependence of such devices, components, or arrangements.
Referring to fig. 1, 7 and 8, embodiments of the present disclosure provide a swirler including a casing 100, a drive wheel 200, a plurality of vanes 300, and a plurality of transmission assemblies 400; the driving wheel 200 is rotatably mounted on the casing 100; each blade 300 is rotatably mounted within the casing 100; the transmission assemblies 400 have a first connection portion 401 and a second connection portion 402, each blade 300 is rotatably connected to the first connection portion 401 of one transmission assembly 400, and the second connection portion 402 of each transmission assembly 400 is rotatably connected to the driving wheel 200.
Based on the above structure, the cyclone of the embodiment of the disclosure realizes that the angle a of the blade 300 is adjustable by rotating the driving wheel 200, and the driving wheel 200 drives the blade 300 to rotate through the transmission assembly 400. Illustratively, the angle a of the blade 300 is adjusted to a range of 25 ° -60 °, and parameters of the specific adjustment range may be set according to the needs of practical applications.
The cyclone of the embodiment of the disclosure is applied to a combustion chamber of a power device, and can actively control the rotation of a driving wheel 200 through a motor or hydraulic driving equipment and the like according to the change of inlet conditions or load of the combustion chamber, so that the angle of a blade 300 is changed, and the effects of optimizing the form and flame structure of the flow field of the combustion chamber of the power device, adjusting the heat release space position, improving the performance of the combustion chamber, optimizing the combustion structure, improving the combustion efficiency, widening the stable operation boundary of the combustion chamber, improving the ignition and flameout performance of the combustion chamber, improving the temperature distribution quality of the outlet of the combustion chamber and the like are realized. By adjusting the angle of the blades 300 of the swirler, the dynamic response characteristics of the flame can be changed, the pressure and the flame pulsation amplitude are reduced, and the purpose of active control of combustion instability is achieved.
In one example, referring to fig. 1-4, the casing 100 includes a first cover plate 110 and a second cover plate 120 disposed opposite to each other, and the blades 300 of the swirler are located between the first cover plate 110 and the second cover plate 120; the driving wheel 200 is located at an outer side of the first cover plate 110 away from the second cover plate 120; each blade 300 is provided with a blade body, a first rotating shaft 310 and a second rotating shaft 320 which are respectively arranged at two sides of the blade body, wherein the axial lines of the first rotating shaft 310 and the second rotating shaft 320 are the same; each of the first rotating shafts 310 passes through the first cover plate 110 in the axial direction of the first cover plate 110; each second rotating shaft 320 is rotatably connected to the second cover 120; the first connection portion 401 of each transmission rod assembly is correspondingly connected with a portion of the first rotating shaft 310 penetrating out of the first cover plate 110.
The first cover plate 110 has a plurality of first shaft holes 111, the second cover plate 120 has a plurality of second shaft holes 121, the number of the blades 300, the number of the first shaft holes 111 and the number of the second shaft holes 121 are the same, the first rotation shaft 310 of each blade 300 respectively passes through one first shaft hole 111, and the second rotation shaft 320 of each blade 300 is respectively rotatably installed in the second shaft hole 121, so that the blades 300 can rotate within a certain angle range.
In one example, referring to fig. 1 to 4, the first cover plate 110 is disposed in parallel with the second cover plate 120, and the first cover plate 110 and the second cover plate 120 are connected by a cover plate support 130. The first cover plate 110 has a plurality of first mounting holes 112, and the second cover plate 120 has a plurality of second mounting holes 122. The number of the first mounting holes 112, the number of the second mounting holes 122 and the number of the cover plate supports 130 are the same, and the corresponding number of the cover plate supports 130 can be selected according to the needs of practical applications. The position of each first mounting hole 112 corresponds to the position of one second mounting hole 122; one end of the cover mounting member is installed in the first installation hole 112 and the other end is installed in the second installation hole 122, so that the first cover 110 and the second cover 120 are connected, and a space accommodating the vane 300 is provided between the first cover 110 and the second cover 120.
The cyclone of the present embodiment is a radial cyclone comprising a first cover plate 110, a second cover plate 120, and blades 300, wherein the outer side surface of the first cover plate 110 is provided with a driving support shaft 1101, the driving wheel 200 is rotatably mounted on the driving support shaft 1101, and a cyclone outlet is provided on the second cover plate 120. The gaps between the first cover plate 110, the second cover plate 120 and the vanes 300 form a cyclone air inlet channel, and in use, non-cyclone air enters the cyclone from the cyclone air inlet channel to generate a cyclone, and then the cyclone flows out from a cyclone outlet on the second cover plate 120.
In the present embodiment, the first cover plate 110 and the second cover plate 120 are arranged in parallel, so that the gaps between the first cover plate 110 and the second cover plate 120 at various positions are equalized, and the combustion chamber temperatures are respectively uniform, thereby improving the combustion chamber performance.
In one example, referring to fig. 1-4, a plurality of vanes 300 are evenly spaced circumferentially about the drive wheel 200 to provide for a more even intake of air from the side of the swirler casing 100. The number of the blades 300 is N, and N is more than or equal to 8 and less than or equal to 20. According to the actual application requirements, the proper number of blades 300 can be selected; the blade 300 may be configured as any one of an airfoil-shaped structural blade 300, a flat-plate structural blade 300, and a curved-plate structural blade 300.
In one example, referring to fig. 1 to 4, the end of the first rotating shaft 310 has a clamping structure 311, and the first connecting portion 401 has a bayonet 4011 adapted to the clamping structure 311. The bayonet 4011 may be a triangle, a quadrilateral, a semicircle, a polygon, or a non-circular hole according to the cross section of the fastening structure 311, so that the first rotating shaft 310 and the first connecting portion 401 are fixed relatively in the circumferential direction, and the first rotating portion can drive the blade 300 to rotate when driven by the driving wheel 200 to rotate.
In one example, referring to fig. 1-6, a transmission assembly 400 includes a driver 410 and a follower 420; one end of the driving member 410 is a second connecting portion 402, and one end of the driven member 420 is a first connecting portion 401; the end of the driving member 410 away from the second connecting portion 402 is rotatably connected to the end of the driven member 420 away from the first connecting portion 401. Wherein the number of driving members 410, driven members 420, and blades 300 is the same.
In summary, the driving wheel 200 of the present embodiment can rotate under the driving of driving devices such as a motor and a hydraulic mechanism, so as to drive the driving member 410 to rotate, and the driving member 410 drives the driven member 420 to rotate, so as to drive the blade 300 to rotate, thereby realizing the adjustment of the angle of the blade 300.
When the cyclone provided by the embodiment of the disclosure is applied to a power device, the angle of the blade 300 is adjustable, so that the angle of the blade 300 can be adjusted according to inlet adjustment and load change of a combustion chamber of the power device, thereby optimizing the flow field form and flame structure of the combustion chamber, adjusting the heat release space position, improving the performance of the combustion chamber, realizing the optimization of combustion tissues, widening the stable operation boundary of the combustion chamber, improving the ignition and flameout performance of the combustion chamber and improving the temperature distribution quality of an outlet of the combustion chamber. By adjusting the angle of the blades 300 of the cyclone, the dynamic response characteristic of flame can be changed, the transfer and development of acoustic disturbance are reduced, the pressure and the flame pulsation amplitude are reduced, and the active control of combustion instability is realized.
Embodiments of the present disclosure also provide a power plant including the above-described swirler, including but not limited to an engine, a gas turbine, and the like.
The present embodiment applies the cyclone to the power plant, and thus, the principle and effects of the present embodiment have been described in the above-described embodiment of the cyclone, and the present embodiment will not be repeated.
It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.

Claims (5)

1. The cyclone is characterized by comprising a casing, a driving wheel, a plurality of blades and a plurality of transmission components; the driving wheel is rotatably arranged on the casing; each blade is rotatably mounted in the casing; the transmission assembly is provided with a first connecting part and a second connecting part, each blade is correspondingly and rotatably connected with the first connecting part of one transmission assembly, and the second connecting part of each transmission assembly is rotatably connected with the driving wheel;
the casing comprises a first cover plate and a second cover plate which are oppositely arranged, and a plurality of blades are positioned between the first cover plate and the second cover plate; the driving wheel is positioned at one side of the first cover plate far away from the second cover plate;
each blade is provided with a blade body, and a first rotating shaft and a second rotating shaft which are respectively arranged on the upper side and the lower side of the blade body, wherein the axial leads of the first rotating shaft and the second rotating shaft are the same; each first rotating shaft penetrates through the first cover plate along the axial direction of the first cover plate; each second rotating shaft is rotatably connected to the second cover plate;
the first connecting part of each transmission rod assembly is correspondingly connected with a part of one first rotating shaft penetrating out of the first cover plate;
the first cover plate and the second cover plate are arranged in parallel, and the first cover plate is connected with the second cover plate through a cover plate supporting piece;
the blades are uniformly distributed at intervals along the circumferential direction of the driving wheel;
the transmission assembly comprises a driving piece and a driven piece; one end of the driving piece is the second connecting part, and one end of the driven piece is the first connecting part; one end of the driving piece, which is far away from the second connecting part, is rotationally connected with one end of the driven piece, which is far away from the first connecting part.
2. The cyclone as claimed in claim 1, wherein the end portion of the first rotation shaft has a clamping structure, and the first connection portion has a bayonet adapted to the clamping structure.
3. The cyclone as claimed in claim 1, wherein the outer side surface of the first cover plate has a driving support shaft, and the driving wheel is rotatably mounted on the driving support shaft.
4. A cyclone according to any one of claims 1 to 3, wherein the vane is any one of an airfoil structural vane, a flat structural vane and a curved structural vane;
the number of the blades is N, and N is more than or equal to 8 and less than or equal to 20.
5. A power plant comprising a cyclone as claimed in any one of claims 1-4.
CN202210249087.0A 2022-03-14 2022-03-14 Cyclone and power device Active CN114659137B (en)

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JPH07332621A (en) * 1994-06-13 1995-12-22 Hitachi Ltd Swirl burner for gas turbine combustion device
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CN112212360A (en) * 2020-10-30 2021-01-12 上海电气燃气轮机有限公司 Swirler with adjustable blade angle and combustion device
CN213513984U (en) * 2020-10-30 2021-06-22 上海电气燃气轮机有限公司 Swirler with adjustable blade angle and combustion device
CN113531583A (en) * 2021-07-19 2021-10-22 中国航发沈阳发动机研究所 Adjustable swirler

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