WO2014205816A1 - Guide vane actuator of a compressor and a compressor using it - Google Patents

Guide vane actuator of a compressor and a compressor using it Download PDF

Info

Publication number
WO2014205816A1
WO2014205816A1 PCT/CN2013/078458 CN2013078458W WO2014205816A1 WO 2014205816 A1 WO2014205816 A1 WO 2014205816A1 CN 2013078458 W CN2013078458 W CN 2013078458W WO 2014205816 A1 WO2014205816 A1 WO 2014205816A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
guide vane
adjusting ring
casing
coil
Prior art date
Application number
PCT/CN2013/078458
Other languages
French (fr)
Inventor
Yucheng Tang
Yinshui HUANG
Diansong Cao
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/CN2013/078458 priority Critical patent/WO2014205816A1/en
Publication of WO2014205816A1 publication Critical patent/WO2014205816A1/en

Links

Classifications

    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/058—Bearings magnetic; electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/50—Kinematic linkage, i.e. transmission of position
    • F05D2260/57—Kinematic linkage, i.e. transmission of position using servos, independent actuators, etc.
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/60—Control system actuates means
    • F05D2270/62—Electrical actuators

Definitions

  • the present invention relates to an actuator, especially to an actuator for driving guide vane to change its angle of attack in a compressor.
  • the present invention also relates to a compressor which uses the actuator. Background technology
  • the compressor comprises a turbine and a compressor driven by the turbine.
  • the compressor is of axial flow type, and the compressor is subject to varying operating conditions resulting in different aerodynamic flow conditions within the compressor.
  • the compressor In order to adapt the compressor performance to different operating demands, it is known to provide the compressor with variable guide vanes.
  • the aerodynamic flow conditions within the compressor vary with the change of the angle of attack of the guide vanes.
  • Figure 1 shows a structural diagram of the guide vane actuator of a compressor in the prior art.
  • the conventional actuator for the guide vanes 70 comprises a journal (not shown in figure), an operating lever (not shown in figure), a synchronous ring 74 and a push rod 72 for the synchronous ring.
  • one end of the journal is connected onto the guide vane 70, and the other end is protruded from the hole provided on the casing 76 of the compressor.
  • One end of the operating lever is connected to one end of the casing 76 where the journal protrudes the compressor, and the other end is connected to the synchronous ring 74.
  • the synchronous ring 74 is surround around the casing 76 of the compressor, and the synchronous ring 74 is pushed by the push rod 72 driven by the hydraulic pressure so as to pivot about the central axis of the compressor with respect to the casing 76 of the compressor, resulting in the movement of the operating lever, thus the guide vane 70 is rotated.
  • This guide vane actuator is complicated in structure and control process, costly in manufacture. Summary of the invention
  • the object of the present invention is to provide an guide vane actuator of a compressor to simplify the structure of the whole actuator and reduce manufacture cost.
  • Another object of the present invention is to provide a compressor which uses the guide vane actuator.
  • the present invention provides a guide vane actuator of a compressor, comprising a plurality of journals, a plurality of operating levers, an adjusting ring and a magnetic driving assembly.
  • the journals can be connected to the guide vanes of the compressor, and each journal comprises a vane end which can be connected to the guide vane and an actuation end.
  • the operating levers can be connected to the journal and each operating lever comprises a journal connecting portion which can be connected to the actuation end of the journal and a ring connecting portion.
  • the adjusting ring is arranged around the casing of the compressor, which can be rotatably connected to the adjusting ring.
  • the magnetic driving assembly which comprises an electromagnetic coil can drive the adjusting ring to rotate with respect to the casing.
  • the guide vane actuator has simple structure and lowcost of manufacture.
  • the angle of attack of guide vanes is easy to control steadily and continually.
  • the vibration problem of the guide vanes in mechanical actuation mode is overcome.
  • the information on the drive forces of the guide vanes can be collected in time.
  • the magnetic driving assembly comprises a plurality of transmission rods arranged along the peripheral direction of the adjusting ring and a plurality of driving members circumferentially spaced apart on the casing.
  • Each transmission rod comprises an attracting end and a connecting portion which can be connected to the ring connecting portion.
  • Different driving members can be energized to generate magnetic forces in different directions to magnetically attract the attracting ends. In this way, the angles of the guide vanes are adjusted.
  • the adjusting ring comprises a plurality of connecting axle bosses connected to the ring connecting portion.
  • the distance between the connecting portion of the two adjacenttransmission rods along the peripheral direction of the adjusting ring is at least twice of the distance between the two adjacent connecting axle bosses.
  • the magnetic driving assembly comprises a first coil and a second coil.
  • the first coil is circularly provided on the surface of the adjusting ring facing the casing
  • the second coil is provided on the casing and is coaxial with the first coil
  • the second coil can electromagnetically drive the first coil to rotate with respect to it.
  • the magnetic driving assembly comprises a fixing ring circularly arranged on the casing, which is provided with a second groove for containing the second coil.
  • the adjusting ring is provided with a first groove for containing the first coil, and the side of the adjusting ring with the first groove can engage with the side of the fixing ring with the second groove.
  • the adjusting ring comprises a recess, and the first groove is provided on the bottom of the recess.
  • the fixing ring comprises a protrude which can be embedded into the recess, and the second groove is provided on the top surface of the protrude.
  • the present invention also provides a compressor, which comprising a casing, a plurality of guide vanes provided in the casing and the above-mentioned guide vane actuator.
  • Figure 1 shows a structural diagram of the guide vane actuator of a compressor in the prior art.
  • Figure 2 is a structural diagram illustrating an exemplary embodiment of the guide vane actuator of a compressor.
  • Figure 3 is a cross-sectional view along III-III of figure 2.
  • Figure 4 and figure 5 illustrate the movement of the guide vane actuator of a compressor in figure 1.
  • Figure 6 is a structural diagram illustrating another exemplary embodiment of the guide vane actuator of a compressor.
  • Figure 7 and figure 8 illustrate the movement of the guide vane actuator of a compressor in figure 4.
  • Figure 9 is a structural diagram of still another exemplary embodiment of the guide vane actuator of a compressor.
  • exemplary means “as instances, examples or explanations”, and should not be interpreted as “preferred” or “more advantageous” as for technical solutions.
  • Figure 2 is a structural diagram illustrating an exemplary embodiment of the guide vane actuator of a compressor.
  • Figure 3 is a cross- sectional view along III-III of figure 2. Only a partial structure of a compressor is schematically drawn in the figures.
  • the guide vane actuator of a compressor comprises six guide vanes 10 (only a few of guide vanes of the compressor are shown in the figures), six journals 20 corresponding to the guide vanes, six operating levers 30 corresponding to the guide vanes, an adjusting ring 40 and a magnetic driving assembly 50.
  • the journal 20 comprises a vane end 22 and an actuation end 24, the vane end 22 is connected to the guide vane 10 to drive the guide vane to rotate so that the angle of attack of the guide vane can be changed.
  • the journal 20 can rotate driven by the operating lever 30 which comprises a journal connecting portion 32 connected to the actuation end 24 and a ring connecting portion 34.
  • the adjusting ring 40 hoops the casing 60 of the compressor and can rotate about the central axis of the compressor with respect to the casing 60.
  • the ring connecting portions 34 of each operating lever 30 are rotatably connected to the adjusting ring 40, such that when rotating with respect to the casing 60, the adjusting ring 40 can drive the operating levers 30, thereby driving the guide vanes 10 to rotate.
  • the magnetic driving assembly 50 comprises two transmission rods 52 arranged along the peripheral direction of the adjusting ring 40 and six driving members 54 corresponding to the transmission rods 52.
  • each transmission rod 52 is provided with an attracting end 522 and a connecting end 524;
  • the driving members 54 are provided on the casing 60 and arranged along the circumferential direction of the adjusting ring 40.
  • the connecting end 524 can be connected to the ring connecting portion 34 of the operating lever 30, and the attracting end 522 of the transmission rod 52 can be magnetically attracted by the driving member 54.
  • the adjusting ring 40 further comprises six connecting axle bosses 42 corresponding to the ring connecting portions 34 of the operating levers 30.
  • the ring connecting portions 34 is connected to the connecting axle bosses 42 and pivots about the connecting axle bosses 42 with respect to the adjusting ring 40.
  • the driving members 54 can be provided with electromagnetic coils to generate a magnetic force.
  • the driving members 54 generate big enough magnetic forces to attract the attracting end 522 when the electromagnetic coils provided in the driving members 54 are energized. Via energizing and disenergizing different electromagnetic coils can determine which driving members of the sequentially-arranged driving members to generate magnetic forces. In this way, the angles of attack of the guide vanes are adjusted to adapt to varying working conditions.
  • Figure 4 and figure 5 are used for illustrating the movement of the guide vanes in figure 2,
  • the driving members 54 in figure 4 and figure 5 are orderly numbered as 54a, 54b, 54c, 54d, 54e and 54f respectively.
  • the driving member 54b and the driving member 54e generate magnetic forces, and the rest of the driving members 54 do not generate magnetic forces.
  • the attracting end 522 of one transmission rod 52 is attracted to the driving member 54b, and the attracting end 522 of another transmission rod 52 is attracted to the driving member 54e with the magnetic forces generated by the driving member 54b and the driving member 54e.
  • the driving member 54b and the driving member 54e do not generate the magnetic attraction force while the driving member 54a and the driving member 54d generate the magnetic attraction, the attracting end of one of the transmission rod 52 switches its attraction donor from the driving member 54b to the driving member 54a, and the attracting end 522 of another transmission rod 52 switches its attraction donor from the driving member 54e to the driving member 54d.
  • the movement of the transmission rods 52 move the adjusting ring 40 with respect to the casing (i.e. to rotate with respect to the casing ) along the direction shown by the arrow in figure 4, thus the guide vanes 10 are rotated via the operating levers 30 and the journals 20.
  • the process of the attracting ends of the two transmission rods switch their attraction donors from the driving member 54b and the driving member 54e to the driving member 54c and the driving member 54f is similar to the above-mentioned process.
  • the span of the change of the angle of attack of the guide vane can be adjusted through adjusting the distance between the driving members in the peripheral direction along the adjusting ring 40. The smaller the distance between the driving members is, the smaller the change span of the angle of attack of the guide vane caused by the attracting end of the transmission rod switching its attraction donor from one driving member to another driving member is.
  • the driving force of the driving member for rotating the adjusting ring can be adjusted by choosing suitable distances between two adjacent transmission rods. With regard to the density of arrangement shown in figure 4 and figure 5, the driving force of the driving members to the adjusting ring is maximum.
  • the transmission rod and the operating lever can be provided integratedly.
  • Figure 6 is a structural diagram illustrating another exemplary embodiment of the guide vane actuator of a compressor, and only partial structure of the compressor is schematically drawn in the figure.
  • the guide vane actuator of a compressor comprises a guide vanes 10 (only one guide vane of the compressor is shown in the figure as examples), a journal 20 corresponding to the guide vane, an operating lever 30 corresponding to the guide vane, an adjusting ring 40 and a magnetic driving assembly 50.
  • the journal 20 comprises a vane end 22 and an actuation end 24, the vane end 22 is connected to the guide vane 10 to drive the guide vanes to rotatably change its angle of attack.
  • the journal 20 can be rotated via the operating levers 30 which comprises a journal connecting portion 32 connected to the actuation end 24 and a ring connecting portion 34.
  • the casing 60 of the compressor is hooped by the adjusting ring 40 which can pivot about the central axis of the compressor with respect to the casing 60.
  • the ring connecting portion 34 of each operating lever 30 is rotatably connected to the adjusting ring 40, such that when rotating with respect to the casing 60, the adjusting ring 40 can move the operating lever 30, thus driving the guide vanes 10 to rotate.
  • the magnetic driving assembly 50 comprises a first coil 56 and a second coil 58.
  • the first coil 56 is circularly arranged on the surface of the adjusting ring 40 facing the casing 60;
  • the second coil 58 is circularly arranged on the casing 60 and extends along the peripheral direction of the adjusting ring 40.
  • the first coil 56 and the second coil 58 are energized, the first coil 56 rotates with respect to the second coil 58 to drive the adjusting ring 40 to rotate with respect to the casing 60, thereby driving the operating lever 30 to act, thus the guide vane 10 is rotated.
  • the rotation realized via energizing the first coil 56 and the second coil 58 is similar to those in a motor, its principle will not be described herein.
  • Figure 7 and figure 8 illustrates the movement of the guide vanesin figure 6, wherein figure 7 and figure 8 are views seen along direction A in figure 6.
  • the adjusting ring 40 doesn't rotate with respect to the casing 60, and the guide vanes 10 are in the state shown in the figure.
  • the first coil 56 and the second coil 58 are energized, the first coil 56 moves with respect to the casing 60 along the direction shown with the arrow in the figure with respect to the second coil 58, thereby rotate the adjusting ring 40 with respect to the casing 60, and then driving the operating lever 30 to act, thus the guide vane 10 is rotated to the state as shown in figure 8.
  • the driving forces of the adjusting ring 40, the rotation angles of the adjusting ring with respect to the casing 60 and the rotation directions of the adjusting ring 40 with respect to the casing 60 can be adjusted through adjusting the magnitude, duration and phase of the alternating current through the first coil 56 and the second coil 58.
  • Figure 9 is a structural diagram illustrating still another exemplary embodiment of the guide vane actuator of a compressor.
  • the magnetic driving assembly 50 comprises a fixing ring 59 which hoops the casing 60.
  • the adjusting ring 40 is provided with a first groove 44
  • the fixing ring 59 is provided with a second groove 592.
  • the first groove 44 is used for containing the first coil 56
  • the second groove 592 is used for containing the second coil 58.
  • the end of the adjusting ring 40 with the first groove 44 can engage with the end of the fixing ring 59 with the second groove 592.
  • the adjusting ring 40 comprises a recess 46
  • the fixing ring 59 comprises a protrude 594.
  • the recess 46 is provided on the side of the adjusting ring 40 provided with the first groove 44
  • protrude 594 is provided on the side of the fixing ring 59 provided with the second groove 592.
  • the protrude 594 can be embedded in the recess 46, such that the adjusting ring 40 rotate smoothly with respect to the casing 60.
  • the present invention also provides a compressor which uses the above-mentioned guide vane actuator.
  • the compressor comprises a casing 60, a plurality of guide vanes 10 provided in the casing 60 and the above-mentioned guide vane actuator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A guide vane actuator (10) of a compressor comprises a plurality of journals (20), a plurality of operating levers (30), an adjusting ring (40) and a magnetic driving assembly (50). The journal can correspond to the guide vane of the compressor, and each journal comprises a vane end (22) connected to the guide vane and an actuation end (24). The operating lever (30) corresponds to the journal (20), and each operating lever (30) comprises a journal connecting portion (32) connected to the actuation end of the journal and a ring connecting portion (34). The adjusting ring (40) is arranged around the casing (60) of the compressor, which can be rotatablely connected to the adjusting ring. The magnetic driving assembly can rotatablely drive the adjusting ring with respect to the casing. The actuator for the guide vane of the compressor has simple actuating structure and lower cost of manufacture.

Description

Description
Guide Vane Actuator of a Compressor and a Compressor using it
Technical field
The present invention relates to an actuator, especially to an actuator for driving guide vane to change its angle of attack in a compressor.
The present invention also relates to a compressor which uses the actuator. Background technology
The compressor comprises a turbine and a compressor driven by the turbine.
Typically, the compressor is of axial flow type, and the compressor is subject to varying operating conditions resulting in different aerodynamic flow conditions within the compressor. In order to adapt the compressor performance to different operating demands, it is known to provide the compressor with variable guide vanes. The aerodynamic flow conditions within the compressor vary with the change of the angle of attack of the guide vanes.
Figure 1 shows a structural diagram of the guide vane actuator of a compressor in the prior art. As shown, the conventional actuator for the guide vanes 70 comprises a journal (not shown in figure), an operating lever (not shown in figure), a synchronous ring 74 and a push rod 72 for the synchronous ring. Wherein, one end of the journal is connected onto the guide vane 70, and the other end is protruded from the hole provided on the casing 76 of the compressor. One end of the operating lever is connected to one end of the casing 76 where the journal protrudes the compressor, and the other end is connected to the synchronous ring 74. The synchronous ring 74 is surround around the casing 76 of the compressor, and the synchronous ring 74 is pushed by the push rod 72 driven by the hydraulic pressure so as to pivot about the central axis of the compressor with respect to the casing 76 of the compressor, resulting in the movement of the operating lever, thus the guide vane 70 is rotated. This guide vane actuator is complicated in structure and control process, costly in manufacture. Summary of the invention
The object of the present invention is to provide an guide vane actuator of a compressor to simplify the structure of the whole actuator and reduce manufacture cost.
Another object of the present invention is to provide a compressor which uses the guide vane actuator.
The present invention provides a guide vane actuator of a compressor, comprising a plurality of journals, a plurality of operating levers, an adjusting ring and a magnetic driving assembly. The journals can be connected to the guide vanes of the compressor, and each journal comprises a vane end which can be connected to the guide vane and an actuation end. The operating levers can be connected to the journal and each operating lever comprises a journal connecting portion which can be connected to the actuation end of the journal and a ring connecting portion. The adjusting ring is arranged around the casing of the compressor, which can be rotatably connected to the adjusting ring.The magnetic driving assembly which comprises an electromagnetic coil can drive the adjusting ring to rotate with respect to the casing. The guide vane actuator has simple structure and lowcost of manufacture. The angle of attack of guide vanes is easy to control steadily and continually. The vibration problem of the guide vanes in mechanical actuation mode is overcome. The information on the drive forces of the guide vanes can be collected in time.
In yet another exemplary embodiment of the guide vane actuator of a compressor, the magnetic driving assembly comprises a plurality of transmission rods arranged along the peripheral direction of the adjusting ring and a plurality of driving members circumferentially spaced apart on the casing. Each transmission rod comprises an attracting end and a connecting portion which can be connected to the ring connecting portion. Different driving members can be energized to generate magnetic forces in different directions to magnetically attract the attracting ends. In this way, the angles of the guide vanes are adjusted.
In another exemplary embodiment of the guide vane actuator of a compressor, the adjusting ring comprises a plurality of connecting axle bosses connected to the ring connecting portion.
In yet another exemplary embodiment of the guide vane actuator of a compressor, the distance between the connecting portion of the two adjacenttransmission rods along the peripheral direction of the adjusting ring is at least twice of the distance between the two adjacent connecting axle bosses.
In yet another exemplary embodiment of the guide vane actuator of a compressor, the magnetic driving assembly comprises a first coil and a second coil. The first coil is circularly provided on the surface of the adjusting ring facing the casing, the second coil is provided on the casing and is coaxial with the first coil, and the second coil can electromagnetically drive the first coil to rotate with respect to it.
In yet another exemplary embodiment of the guide vane actuator of a compressor, the magnetic driving assembly comprises a fixing ring circularly arranged on the casing, which is provided with a second groove for containing the second coil. The adjusting ring is provided with a first groove for containing the first coil, and the side of the adjusting ring with the first groove can engage with the side of the fixing ring with the second groove.
In yet another exemplary embodiment of the guide vane actuator of a compressor, the adjusting ring comprises a recess, and the first groove is provided on the bottom of the recess. The fixing ring comprises a protrude which can be embedded into the recess, and the second groove is provided on the top surface of the protrude.
The present invention also provides a compressor, which comprising a casing, a plurality of guide vanes provided in the casing and the above-mentioned guide vane actuator.
Brief description of the drawings The following drawings are used only for schematic illustration and explanation to the present invention and not intended to limit the scope of the present invention.
Figure 1 shows a structural diagram of the guide vane actuator of a compressor in the prior art.
Figure 2 is a structural diagram illustrating an exemplary embodiment of the guide vane actuator of a compressor.
Figure 3 is a cross-sectional view along III-III of figure 2.
Figure 4 and figure 5 illustrate the movement of the guide vane actuator of a compressor in figure 1.
Figure 6 is a structural diagram illustrating another exemplary embodiment of the guide vane actuator of a compressor.
Figure 7 and figure 8 illustrate the movement of the guide vane actuator of a compressor in figure 4.
Figure 9 is a structural diagram of still another exemplary embodiment of the guide vane actuator of a compressor.
Detailed description of the embodiments
In order to make the technical features, the purpose and the effect of the invention more clear, the embodiments of the present invention will be described with reference to the drawings, in which the same reference numeral denotes the same part.
Herein, "exemplary" means "as instances, examples or explanations", and should not be interpreted as "preferred" or "more advantageous" as for technical solutions.
Herein, "a" means not only "only one", but also "more than one". Also, the words "first", "second" and the like are only used for distinguishing the elements from each other, rather than indicating their importance, sequence and the like.
Herein, "equal", "same" and the like should be understand by those skilled in the art as "with tolerance" in manufacture and usage, rather than strict limitation in mathematics and/or geometry.
Figure 2 is a structural diagram illustrating an exemplary embodiment of the guide vane actuator of a compressor. Figure 3 is a cross- sectional view along III-III of figure 2. Only a partial structure of a compressor is schematically drawn in the figures. Refer to figure 2 and figure 3, the guide vane actuator of a compressor comprises six guide vanes 10 (only a few of guide vanes of the compressor are shown in the figures), six journals 20 corresponding to the guide vanes, six operating levers 30 corresponding to the guide vanes, an adjusting ring 40 and a magnetic driving assembly 50.
Wherein, the journal 20 comprises a vane end 22 and an actuation end 24, the vane end 22 is connected to the guide vane 10 to drive the guide vane to rotate so that the angle of attack of the guide vane can be changed. The journal 20 can rotate driven by the operating lever 30 which comprises a journal connecting portion 32 connected to the actuation end 24 and a ring connecting portion 34. The adjusting ring 40 hoops the casing 60 of the compressor and can rotate about the central axis of the compressor with respect to the casing 60. The ring connecting portions 34 of each operating lever 30 are rotatably connected to the adjusting ring 40, such that when rotating with respect to the casing 60, the adjusting ring 40 can drive the operating levers 30, thereby driving the guide vanes 10 to rotate.
In the embodiment shown in figure 2 and figure 3, the magnetic driving assembly 50 comprises two transmission rods 52 arranged along the peripheral direction of the adjusting ring 40 and six driving members 54 corresponding to the transmission rods 52. Wherein, each transmission rod 52 is provided with an attracting end 522 and a connecting end 524; the driving members 54 are provided on the casing 60 and arranged along the circumferential direction of the adjusting ring 40. The connecting end 524 can be connected to the ring connecting portion 34 of the operating lever 30, and the attracting end 522 of the transmission rod 52 can be magnetically attracted by the driving member 54. The adjusting ring 40 further comprises six connecting axle bosses 42 corresponding to the ring connecting portions 34 of the operating levers 30. The ring connecting portions 34 is connected to the connecting axle bosses 42 and pivots about the connecting axle bosses 42 with respect to the adjusting ring 40. On the circumferentialdirection of the adjusting ring 40, the distance between two adjacent transmission rods 52 is twice that between the two adjacent connecting axle bosses 42. The driving members 54 can be provided with electromagnetic coils to generate a magnetic force. The driving members 54 generate big enough magnetic forces to attract the attracting end 522 when the electromagnetic coils provided in the driving members 54 are energized. Via energizing and disenergizing different electromagnetic coils can determine which driving members of the sequentially-arranged driving members to generate magnetic forces. In this way, the angles of attack of the guide vanes are adjusted to adapt to varying working conditions.
Figure 4 and figure 5 are used for illustrating the movement of the guide vanes in figure 2, In order to illustrate the movement of the guide vane actuator, the driving members 54 in figure 4 and figure 5 are orderly numbered as 54a, 54b, 54c, 54d, 54e and 54f respectively. As shown in figure 4, among the six driving members, only the driving member 54b and the driving member 54e generate magnetic forces, and the rest of the driving members 54 do not generate magnetic forces. Thus, the attracting end 522 of one transmission rod 52 is attracted to the driving member 54b, and the attracting end 522 of another transmission rod 52 is attracted to the driving member 54e with the magnetic forces generated by the driving member 54b and the driving member 54e.
As shown in figure 5, the driving member 54b and the driving member 54e do not generate the magnetic attraction force while the driving member 54a and the driving member 54d generate the magnetic attraction, the attracting end of one of the transmission rod 52 switches its attraction donor from the driving member 54b to the driving member 54a, and the attracting end 522 of another transmission rod 52 switches its attraction donor from the driving member 54e to the driving member 54d. The movement of the transmission rods 52 move the adjusting ring 40 with respect to the casing (i.e. to rotate with respect to the casing ) along the direction shown by the arrow in figure 4, thus the guide vanes 10 are rotated via the operating levers 30 and the journals 20.
The process of the attracting ends of the two transmission rods switch their attraction donors from the driving member 54b and the driving member 54e to the driving member 54c and the driving member 54f is similar to the above-mentioned process.The span of the change of the angle of attack of the guide vane can be adjusted through adjusting the distance between the driving members in the peripheral direction along the adjusting ring 40. The smaller the distance between the driving members is, the smaller the change span of the angle of attack of the guide vane caused by the attracting end of the transmission rod switching its attraction donor from one driving member to another driving member is. In addition, the driving force of the driving member for rotating the adjusting ring can be adjusted by choosing suitable distances between two adjacent transmission rods. With regard to the density of arrangement shown in figure 4 and figure 5, the driving force of the driving members to the adjusting ring is maximum. The transmission rod and the operating lever can be provided integratedly.
Figure 6 is a structural diagram illustrating another exemplary embodiment of the guide vane actuator of a compressor, and only partial structure of the compressor is schematically drawn in the figure. As shown, the guide vane actuator of a compressor comprises a guide vanes 10 (only one guide vane of the compressor is shown in the figure as examples), a journal 20 corresponding to the guide vane, an operating lever 30 corresponding to the guide vane, an adjusting ring 40 and a magnetic driving assembly 50.
Wherein, the journal 20 comprises a vane end 22 and an actuation end 24, the vane end 22 is connected to the guide vane 10 to drive the guide vanes to rotatably change its angle of attack. The journal 20 can be rotated via the operating levers 30 which comprises a journal connecting portion 32 connected to the actuation end 24 and a ring connecting portion 34. The casing 60 of the compressor is hooped by the adjusting ring 40 which can pivot about the central axis of the compressor with respect to the casing 60. The ring connecting portion 34 of each operating lever 30 is rotatably connected to the adjusting ring 40, such that when rotating with respect to the casing 60, the adjusting ring 40 can move the operating lever 30, thus driving the guide vanes 10 to rotate.
In the embodiment shown in figure 6, the magnetic driving assembly 50 comprises a first coil 56 and a second coil 58. The first coil 56 is circularly arranged on the surface of the adjusting ring 40 facing the casing 60; the second coil 58 is circularly arranged on the casing 60 and extends along the peripheral direction of the adjusting ring 40. After the first coil 56 and the second coil 58 are energized, the first coil 56 rotates with respect to the second coil 58 to drive the adjusting ring 40 to rotate with respect to the casing 60, thereby driving the operating lever 30 to act, thus the guide vane 10 is rotated. The rotation realized via energizing the first coil 56 and the second coil 58 is similar to those in a motor, its principle will not be described herein.
Figure 7 and figure 8 illustrates the movement of the guide vanesin figure 6, wherein figure 7 and figure 8 are views seen along direction A in figure 6. As shown in figure 7, the adjusting ring 40 doesn't rotate with respect to the casing 60, and the guide vanes 10 are in the state shown in the figure. After the first coil 56 and the second coil 58 are energized, the first coil 56 moves with respect to the casing 60 along the direction shown with the arrow in the figure with respect to the second coil 58, thereby rotate the adjusting ring 40 with respect to the casing 60, and then driving the operating lever 30 to act, thus the guide vane 10 is rotated to the state as shown in figure 8.
The driving forces of the adjusting ring 40, the rotation angles of the adjusting ring with respect to the casing 60 and the rotation directions of the adjusting ring 40 with respect to the casing 60 can be adjusted through adjusting the magnitude, duration and phase of the alternating current through the first coil 56 and the second coil 58.
Figure 9 is a structural diagram illustrating still another exemplary embodiment of the guide vane actuator of a compressor. As shown, the magnetic driving assembly 50 comprises a fixing ring 59 which hoops the casing 60. The adjusting ring 40 is provided with a first groove 44, and the fixing ring 59 is provided with a second groove 592. Wherein, the first groove 44 is used for containing the first coil 56, and the second groove 592 is used for containing the second coil 58. The end of the adjusting ring 40 with the first groove 44 can engage with the end of the fixing ring 59 with the second groove 592.
As shown in figure 9, in an exemplary embodiment of the guide vane actuator of a compressor, the adjusting ring 40 comprises a recess 46, and the fixing ring 59 comprises a protrude 594. Wherein the recess 46 is provided on the side of the adjusting ring 40 provided with the first groove 44, and protrude 594 is provided on the side of the fixing ring 59 provided with the second groove 592. The protrude 594 can be embedded in the recess 46, such that the adjusting ring 40 rotate smoothly with respect to the casing 60.
The present invention also provides a compressor which uses the above-mentioned guide vane actuator. The compressor comprises a casing 60, a plurality of guide vanes 10 provided in the casing 60 and the above-mentioned guide vane actuator.
It should be understood, although this specification is described according to individual embodiment, each embodiment is not limited to containing only one independent technical solution. The manner of description in the specification is just for clarity, those skilled in the art should take the specification as a whole, and the technical solutions in various embodiments can also be appropriately combined to form other embodiment that can be understand by those skilled in the art.
A series of details listed above are only particular illustration for the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. The equivalent embodiments or variations such as the combination, separation or repetition of features, which don't depart from the spirit of the present invention, should be included within the protection scope of the present invention.
List of reference signs
10 guide vane
20 journal
22 vane end
24 actuation end
30 operating lever
32 journal connecting portion
34 ring connecting portion
40 adjusting ring
42 connecting axle boss
44 first groove
46 recess
50 magnetic driving assembly
52 transmission rod
522 attracting end
524 connecting end
54 driving member
56 first coil
58 second coil fixing ring second groove protrude casing

Claims

Claims
1. A guide vane actuator of a compressor, comprising:
a plurality of journals (20) connecting to the guide vanes (10) of the compressor, wherein each of said journals (20) comprises an actuation end (24) and a vane end (22) which can be connected to each of said guide vanes (10) ; a plurality of operating levers (30) connecting to said journals (20), wherein each of said operating levers (30) comprises a journal connecting portion (32) which can be connected to the actuation end (24) of each of said journals (20) and a ring connecting portion (34);
an adjusting ring (40) which can be mounted around the casing (60) of the compressor, wherein the ring connecting portion (34) of said operating levers (30) can be pivotally connected to the adjusting ring (40); and
a magnetic driving assembly (50) comprising an electromagnetic coil, which can generate a magnetic force to rotate the adjusting ring (40) with respect to the casing (60).
2. The guide vane actuator of a compressor according to claim 1, wherein the magnetic driving assembly (50) comprises:
a plurality of transmission rods (52) arranging along the peripheral direction of said adjusting ring (40), wherein each of the transmission rods (52) comprises an attracting end (522) and a connecting portion (524) connecting to said ring connecting portion (34); and
a plurality of driving members (54) circumferentially spaced apart on the casing (60) , different said driving members can be energized to generate magnetic forces to magnetically attract the attracting ends (522) of said transmission rods (52) .
3. The guide vane actuator of a compressor according to claim 2, wherein the adjusting ring (40) comprises a plurality of connecting axle bosses (42) connecting to the ring connecting portion (34).
4. The guide vane actuator of a compressor according to claim 3, wherein the distance between two adjacent transmission rods (52) along the peripheral direction of the adjusting ring (40) is at least twice of the distance between two adjacent connecting axle bosses (42).
5. The guide vane actuator of a compressor according to claim 1, wherein the magnetic driving assembly (50) comprises:
a first coil (56), which is circularly arranged on the surface of the adjusting ring (40) facing the casing (60); and
a second coil (58), which is circularly arranged on the casing (60) and is coaxial with the first coil (56), wherein the second coil (58) can electromagnetically drive the first coil (56) to rotate with respect to the second coil (58).
6. The guide vane actuator of a compressor according to claim 5, wherein: the magnetic driving assembly (50) comprises a fixing ring (59) circularly arranging on the casing (60), which is provided with a second groove (592) for containing the second coil (58);
the adjusting ring (40) is provided with a first groove (44) for containing the first coil (56), and the side of the adjusting ring (40) with the first groove (44) can engage with the side of the fixing ring (59) with the second groove (592).
7. The guide vane actuator of a compressor according to claim 6, wherein: the adjusting ring (40) comprises a recess (46), and the first groove (44) is provided on the bottom of the recess (46); the fixing ring (59) comprises a protrude (594) which can be embedded in the recess (46), and the second groove (592) is provided on the top surface of the protrude (594).
8. A compressor, which comprises:
a casing (60),
a plurality of guide vanes (10) provided in the casing (60), characterized in that,
the compressor further comprises the guide vane actuator according to any one of claim 1 to 7.
PCT/CN2013/078458 2013-06-28 2013-06-28 Guide vane actuator of a compressor and a compressor using it WO2014205816A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/078458 WO2014205816A1 (en) 2013-06-28 2013-06-28 Guide vane actuator of a compressor and a compressor using it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/078458 WO2014205816A1 (en) 2013-06-28 2013-06-28 Guide vane actuator of a compressor and a compressor using it

Publications (1)

Publication Number Publication Date
WO2014205816A1 true WO2014205816A1 (en) 2014-12-31

Family

ID=52140890

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/078458 WO2014205816A1 (en) 2013-06-28 2013-06-28 Guide vane actuator of a compressor and a compressor using it

Country Status (1)

Country Link
WO (1) WO2014205816A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3282096A1 (en) 2016-08-12 2018-02-14 Safran Aero Boosters SA Variable orientation vane for compressor of axial turbomachine
US20240133313A1 (en) * 2022-10-21 2024-04-25 Rolls-Royce North American Technologies Inc. Variable stator vane assembly with magnetic actuation rotor for gas turbine engines

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191016468A (en) * 1910-07-09 1911-09-11 Maxim Bernard Becker Boyd Improvements in or relating to Rotary Internal Combustion Engines.
US3861822A (en) * 1974-02-27 1975-01-21 Gen Electric Duct with vanes having selectively variable pitch
US4695220A (en) * 1985-09-13 1987-09-22 General Electric Company Actuator for variable vanes
US20060263206A1 (en) * 2005-05-17 2006-11-23 Snecma System for controlling stages of variable-pitch stator vanes in a turbomachine
CN101892874A (en) * 2009-01-06 2010-11-24 通用电气公司 Variable position guide vane actuation system and method
EP2261466A1 (en) * 2009-06-09 2010-12-15 Siemens Aktiengesellschaft Adjustment device for stator vanes of a turbine
CN102159794A (en) * 2008-09-18 2011-08-17 西门子公司 Method, system, device for variable guide vanes
CN102628453A (en) * 2011-02-04 2012-08-08 西门子公司 Centrifugal compressor having variable geometry diffuser and method thereof
WO2013010848A1 (en) * 2011-07-21 2013-01-24 Bosch Mahle Turbo Systems Gmbh & Co. Kg Vane bearing ring of a variable turbine/compressor geometry

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191016468A (en) * 1910-07-09 1911-09-11 Maxim Bernard Becker Boyd Improvements in or relating to Rotary Internal Combustion Engines.
US3861822A (en) * 1974-02-27 1975-01-21 Gen Electric Duct with vanes having selectively variable pitch
US4695220A (en) * 1985-09-13 1987-09-22 General Electric Company Actuator for variable vanes
US20060263206A1 (en) * 2005-05-17 2006-11-23 Snecma System for controlling stages of variable-pitch stator vanes in a turbomachine
CN102159794A (en) * 2008-09-18 2011-08-17 西门子公司 Method, system, device for variable guide vanes
CN101892874A (en) * 2009-01-06 2010-11-24 通用电气公司 Variable position guide vane actuation system and method
EP2261466A1 (en) * 2009-06-09 2010-12-15 Siemens Aktiengesellschaft Adjustment device for stator vanes of a turbine
CN102628453A (en) * 2011-02-04 2012-08-08 西门子公司 Centrifugal compressor having variable geometry diffuser and method thereof
WO2013010848A1 (en) * 2011-07-21 2013-01-24 Bosch Mahle Turbo Systems Gmbh & Co. Kg Vane bearing ring of a variable turbine/compressor geometry

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3282096A1 (en) 2016-08-12 2018-02-14 Safran Aero Boosters SA Variable orientation vane for compressor of axial turbomachine
BE1024492B1 (en) * 2016-08-12 2018-03-12 Safran Aero Boosters S.A. ARAB A VARIABLE ORIENTATION OF AXIAL TURBOMACHINE COMPRESSOR
US10287908B2 (en) 2016-08-12 2019-05-14 Safran Aero Boosters Sa Variable orientation vane for compressor of axial turbomachine
US20240133313A1 (en) * 2022-10-21 2024-04-25 Rolls-Royce North American Technologies Inc. Variable stator vane assembly with magnetic actuation rotor for gas turbine engines

Similar Documents

Publication Publication Date Title
EP3291427B1 (en) Active-active redundant motor gear system
CN104065202B (en) Virtual ellipse motor
JP4575916B2 (en) Solenoid valve actuator
EP3276803B1 (en) Stator assembly including stator elements with slotted stator cores for use in an electrical motor
US8288908B2 (en) Reconfigurable inductive to synchronous motor
CN106716565B (en) The adjusting device of electromagnetism
EP3032727B1 (en) Reluctance motor with virtual rotor
CN104836372B (en) Cone rotor AC permanent magnet brake motor
WO2014205816A1 (en) Guide vane actuator of a compressor and a compressor using it
JP6009427B2 (en) Electric motor with brake
EP3144943B1 (en) Pendulum-type electromagnetic actuator
JP2012043661A (en) Vacuum circuit breaker
US10707028B2 (en) Automatic transfer switch and drive subsystem
US9343217B2 (en) Electromagnetic positioning device
CN102751838A (en) Switch reluctance electromotor with function of power-off self locking
US20230420169A1 (en) Bistable electromagnetic actuator and aircraft brake valve provided with such an actuator
EP3086445B1 (en) Electromechanical actuator damping
CN108604489A (en) Bistable state electromechanical actuator
CN203386671U (en) Double-phase relay
CN105448555A (en) Bistable state optical path regulation mechanism and method
JP5522187B2 (en) NEGATIVE ELECTRIC BRAKE DEVICE, ITS CONTROL METHOD, CONTROL DEVICE, AND DRIVE DEVICE
JP6036131B2 (en) Negative operating electromagnetic brake device, control method and control device, and drive device
CN103148120A (en) High efficiency bistable electromagnetic clutch
WO2016039145A1 (en) Magnet driving mechanism
JP2014173563A (en) Engine unit

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13887898

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13887898

Country of ref document: EP

Kind code of ref document: A1