WO2019174497A1 - 一种磁悬浮压缩机 - Google Patents

一种磁悬浮压缩机 Download PDF

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Publication number
WO2019174497A1
WO2019174497A1 PCT/CN2019/077066 CN2019077066W WO2019174497A1 WO 2019174497 A1 WO2019174497 A1 WO 2019174497A1 CN 2019077066 W CN2019077066 W CN 2019077066W WO 2019174497 A1 WO2019174497 A1 WO 2019174497A1
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WO
WIPO (PCT)
Prior art keywords
main shaft
magnetic bearing
magnetic levitation
axial
cooling
Prior art date
Application number
PCT/CN2019/077066
Other languages
English (en)
French (fr)
Inventor
李永胜
王维林
杨琦
张凤琴
张婕妤
何小宏
Original Assignee
山东天瑞重工有限公司
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
Priority claimed from CN201810212319.9A external-priority patent/CN108223403B/zh
Application filed by 山东天瑞重工有限公司 filed Critical 山东天瑞重工有限公司
Publication of WO2019174497A1 publication Critical patent/WO2019174497A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet

Definitions

  • Embodiments of the present invention relate to, but are not limited to, the field of magnetic levitation technology, and in particular to a magnetic levitation compressor for use in a central air conditioner and a large refrigerator.
  • the magnetic levitation air conditioner discharges Freon from the magnetic levitation compressor through high temperature and high pressure, enters the condenser, releases heat to the cooling water of the copper tube, condenses it into a medium temperature and high pressure freon liquid, and then depressurizes it to a low temperature and low pressure liquid through the shutoff valve to evaporate.
  • the heat is absorbed from the chilled water flowing through the copper tube in the evaporator casing, gasified into a low-temperature low-pressure gas, and then sucked into the compressor, and subjected to secondary compression in the compressor to discharge high-temperature and high-pressure gas, and finally, through this cycle, The purpose of cooling.
  • an object of the present application is to provide a magnetic levitation compressor.
  • the present application provides a magnetic levitation compressor to solve the problem that the existing compressor only relies on shifting to solve the flow problem and requires two-stage compression to achieve the compression ratio.
  • the present application provides a magnetic levitation compressor comprising a housing, a rotating mechanism, a cold medium compression mechanism and a cooling mechanism, the rotating mechanism being disposed in the housing, the cold medium compression mechanism being disposed on the rotating mechanism a cold medium quality compression mechanism for compressing a cold medium and conveying the compressed cold medium to the cooling mechanism, the cooling mechanism for cooling the rotating mechanism; wherein the magnetic levitation compressor further includes a flow regulating mechanism The flow regulating mechanism controls the flow rate of the cold medium entering the cold medium compression mechanism.
  • the flow regulating mechanism is provided with an inlet guide vane outer casing
  • the intake vane outer casing is provided with a guide vane mechanism
  • the guide vane mechanism comprises a guide vane
  • the guide vane is a fan-shaped structure.
  • the guide vane mechanism further comprises a connecting rod, the connecting rod is disposed at one end of the guiding vane, and the connecting rod drives the guiding vane to rotate.
  • the guide vane mechanism further comprises a joint bearing and a worm wheel, the first end of the joint bearing is connected with the connecting rod, and the worm wheel is rotatably connected with the second end of the joint bearing.
  • the guide vane mechanism is mounted on the intake vane housing through the worm wheel disc, the worm wheel disc is rotatably connected to a servo motor, wherein the servo motor is fixedly mounted with a volute, and the volute is mounted On the outer casing.
  • the guide vane mechanism comprises several.
  • the rotating mechanism comprises a stator and a main shaft, the stator is mounted in the outer casing, the main shaft is mounted in the stator; the cold medium compressing mechanism comprises an impeller, and the impeller is disposed on the main shaft One end; the cooling mechanism includes a cooling jacket disposed between the stator and the outer casing.
  • the cold medium mass compression mechanism comprises a volute, the volute is coaxially equipped with an air inlet, and an impeller cover is arranged between the impeller and the air inlet, the impeller cover and the impeller A compression chamber is formed between each of the blades.
  • the axis on the cooling jacket is provided with a first pitch spiral groove, and the pitch of the first pitch spiral groove is equal.
  • the first pitch spiral groove is provided with a second pitch spiral groove, the pitch of the second pitch spiral groove is equal, and the pitch of the first pitch spiral groove is larger than the pitch of the second pitch spiral groove.
  • one end of the cooling jacket is provided with an annular array, and the annular array is provided with a plurality of notches, and any one of the notches conveys the cold medium in the first pitch spiral groove and the second pitch spiral groove.
  • any one of the notches is connected with a cooling zone, and the cooling zone is enclosed by the cooling jacket and the main shaft.
  • the cooling region includes a second region surrounded by a left radial magnetic bearing, the main shaft, the outer casing, the cooling jacket and the stator, wherein the left diameter A magnetic bearing is disposed between the main shaft and the outer casing (30).
  • the cooling area further includes a third area, the third area is in communication with the second area, the third area is composed of the main shaft, the stator, a right radial magnetic bearing, and an axial magnetic bearing housing Enclosed with the cooling jacket, wherein the right radial magnetic bearing is mounted at a first end of the main shaft, and the axial magnetic bearing housing is mounted on the right radial magnetic bearing.
  • the cooling area further includes a fourth area, the fourth area is in communication with the third area, the fourth area is composed of the main shaft, a thrust disk, a left axial magnetic bearing seat, and the axial magnetic field Enclosed between the bearing housing and the right radial magnetic bearing, wherein the thrust disc is mounted at a first end of the main shaft, and the left axial magnetic bearing housing is disposed at the thrust disc and the axial magnetic bearing Between the outer casings.
  • the cooling area further includes a first area, the first area is in communication with the fourth area, the first area is composed of the axial magnetic bearing shell, a right axial magnetic bearing, and an axial auxiliary bearing seat Enclosing the axial auxiliary bearing cap, the end cap and the main shaft, wherein the right axial magnetic bearing is disposed at a first end of the main shaft, the axial auxiliary bearing seat and the right axial direction A magnetic bearing is fixedly coupled, the axial auxiliary bearing cap encapsulating one side of the axial auxiliary bearing housing, the end cap encapsulating one end of the axial magnetic bearing housing.
  • the beneficial effects of the present application include: the magnetic levitation compressor provided by the present application makes the device more energy-saving by providing a rotating mechanism and a cold medium compression mechanism, and the energy saving can reach 42%-50% or more, and the energy saving is 30% compared with the prior art;
  • the flow control mechanism is set to realize multi-stage control of the compressed cold medium mass flow, reduce the load of the impeller under the premise of ensuring the flow rate, and prolong the service life of the impeller; realize the automatic circulating cooling of the device by setting the cooling mechanism To save resources, the cost of the invention can be reduced by 30%-40%, which is convenient for manufacturing and promotion.
  • Figure 1 is a schematic view showing the structure of a magnetic levitation compressor in an embodiment
  • Figure 2 is a schematic view showing the structure of a magnetic levitation compressor in an embodiment
  • Figure 3 is a schematic structural view of a magnetic levitation compressor in an embodiment
  • FIG. 4 is a schematic structural view of a cooling jacket of a magnetic levitation compressor in an embodiment
  • Figure 5 is a schematic structural view of a cooling jacket of a magnetic levitation compressor in an embodiment
  • Figure 6 is an enlarged schematic view of the portion Q in Figure 4.
  • Figure 7 is a partial enlarged view of Figure 1;
  • Figure 8 is a schematic structural view of an impeller and an impeller cover of a magnetic levitation compressor in an embodiment
  • Figure 9 is a side view of Figure 8.
  • Figure 10 is a cross-sectional view of Figure 8.
  • FIGS. 1 to 3 are schematic structural views of an embodiment of the magnetic levitation compressor
  • FIG. 4 is a structural schematic view of an embodiment of a cooling jacket of a magnetic levitation compressor
  • 5 is a schematic structural view of an embodiment of a cooling jacket of a magnetic levitation compressor
  • FIG. 6 is an enlarged schematic view of Q in FIG. 4
  • FIG. 7 is a partial enlarged view of FIG. 1
  • FIG. 8 is an impeller and an impeller cover of the magnetic levitation compressor.
  • FIG. 9 is a side view of FIG. 8.
  • FIG. 10 is a cross-sectional view of FIG. 8. Referring to FIGS.
  • the magnetic levitation compressor includes a casing 30, and a rotation is provided in the casing 30.
  • the mechanism and the rotating mechanism are provided with a cold medium compressing mechanism for compressing the cold medium.
  • the flow rate of the cold medium entering the cold medium compressing mechanism is controlled by the flow regulating mechanism, and the rotating mechanism is cooled by the cooling mechanism to ensure the normal operation of the rotating mechanism.
  • the rotating mechanism includes a stator 16 that is coaxially mounted within a housing 30 that is coaxially mounted with a spindle 28 for driving the operation of a cold medium compression mechanism.
  • a radial auxiliary bearing housing 10 is coaxially mounted between the position on the outer circumference of the first end of the main shaft 28 and the outer casing 30.
  • the radial auxiliary bearing housing 10 is coaxially assembled with the main shaft 28 via a radial auxiliary bearing 11, and the position between the main shaft 28 and the radial auxiliary bearing housing 10 on the side close to the radial auxiliary bearing 11 is performed by the radial auxiliary bearing cover 9. Package.
  • a left sensor 13 is disposed on the outer circumference of the second end of the main shaft 28 near the radial auxiliary bearing housing 10.
  • a left radial magnetic bearing 14 is coaxially fitted between the outer circumference of the second end of the main shaft 28 near the left sensor 13 and the outer casing 30.
  • a radial magnetic bearing housing 12 is coaxially mounted between the left sensor 13 and the left radial magnetic bearing 14 and the outer casing 30.
  • the first end of the outer circumference of the main shaft 28 remote from the left sensor 13 is coaxially fitted with a right radial magnetic bearing 17, and the outer circumference of the right radial magnetic bearing 17 is coaxially fitted with an axial magnetic bearing housing 18, axially
  • the magnetic bearing housing 18 is fixedly coupled to the housing 30.
  • a position of the right end of the first end of the main shaft 28 adjacent to the right radial magnetic bearing 17 is provided with a right sensor 19 for detecting the position of the main shaft 28, and an axis between the right sensor 19 and the right radial magnetic bearing 17 along the axis of the main shaft 28.
  • the directions are spaced apart by a certain distance so that the design facilitates the flow of cold media.
  • a position of the main shaft 28 on the outer circumference of the first end adjacent to the right sensor 19 is coaxially fitted with a thrust disc 46 having an L-shaped longitudinal section.
  • An annular array on the outer circumference of the thrust disk 46 has a plurality of sector magnets 23, and a left axial magnetic bearing housing 21 and a right side are disposed between the plurality of sector magnets 23 and the axial magnetic bearing housing 18 in the flow direction of the cold medium.
  • One side of the left axial magnetic bearing housing 21 is fixedly mounted with a left axial magnetic bearing 20 disposed coaxially with the first end of the main shaft 28.
  • One side of the right axial magnetic bearing housing 22 is fixedly mounted with a right axial magnetic bearing 24 disposed coaxially with the first end of the main shaft 28.
  • An axial auxiliary bearing housing 25 is coaxially disposed between the right axial magnetic bearing 24 and the main shaft 28, and the axial auxiliary bearing housing 25 and the right axial magnetic bearing 24 are fixedly connected by bolts.
  • An axial auxiliary bearing 27 is coaxially disposed between the axial auxiliary bearing housing 25 and the main shaft 28.
  • One side of the axial auxiliary bearing 27 and the axial auxiliary bearing housing 25 is encapsulated by an axial auxiliary bearing cover 26.
  • the cold medium mass compression mechanism includes an impeller 7 disposed coaxially at a first end of the main shaft 28 for compressing a cold medium.
  • the impeller 7 and the main shaft 28 are connected by a coaxial stud 5, and one end of the stud 5 is screwed to the main shaft 28, and the other end passes through the impeller 7 at a certain distance and passes through the bolt. Package.
  • the end of the stud 5 located outside the impeller 7 is coaxially fitted with a flow guiding cone 44.
  • a volute 4 is fitted to one end of the outer casing 30 adjacent to the impeller 7.
  • An air inlet 8 is coaxially fitted in the volute 4 near the impeller 7, and an impeller cover 45 having a bell-like structure is disposed between the outside of the impeller 7 and the air inlet 8.
  • the impeller cover 45 and the impeller 7 are welded together to form a closed impeller, and a compression chamber W3 is formed between the impeller cover 45 and the vanes of the impeller 7; the impeller blades adopt a ternary flow rear curved blade, and the exit angle of the blade Between 30 degrees and 45 degrees, the impeller rotates at a high speed, the compression chamber W3 works on the gas, the gas compression efficiency is high, and the pressure loss is small, which can double the compression ratio of the cold medium.
  • An intake seal 6 is disposed between the position of the impeller cover 45 remote from the main shaft 28 and the intake port 8.
  • the inside of the volute 4 is provided with a flow path W4 of the volute at a position corresponding to the edge of the impeller 7, and the flow path W4 of the volute communicates with the discharge port W5 of the volute, and the impeller 7 compresses the cold medium.
  • the flow path W4 of the volute and the discharge port W5 of the volute are sent to the cooling mechanism.
  • the flow regulating mechanism includes an intake guide vane casing 43 having a through hole in the middle and a U-shaped longitudinal section.
  • a plurality of guide vane mechanisms are disposed in the through holes of the intake vane housing 43, and the guide vane mechanism includes an annular array of positions in the through holes of the intake vane housing 43 near the main shaft 28 a plurality of guide vanes 3 for controlling the flow rate of the compressed cold medium, and each of the guide vanes 3 is a fan-shaped structure, and each of the guide vanes 3 adjusts its area along the direction of the wind flow by rotation, thereby realizing the refrigerant Control of media flow.
  • One end of the guide vane 3 is integrally connected with a rotating shaft in the direction of its rotation axis, and each of the guide vanes 3 is rotatably mounted on the intake vane casing 43 through a corresponding rotating shaft, and the intake vane casing 43 is fixed. Mounted on the volute 4.
  • a central aperture W2 is formed between the adjacent two guide vanes 3 and the corresponding inner wall of the inlet guide vane casing 43.
  • the inner wall of the U-shaped structure on the intake vane casing 43 near the guide vane 3 is the outer circle W1 of the intake vane casing.
  • the guide vane mechanism further includes a connecting rod 31, and the connecting rod 31 and the rotating shaft are fixedly installed at a certain distance from the outer circumference W1 of the intake vane outer casing through the intake vane outer casing 43 respectively. And each of the rotating shafts is fixedly connected to the position of the connecting rod 31 near one end, and the connecting rod 31 rotates to rotate the guiding vane 3 through the rotating shaft.
  • each of the connecting rods 31 away from the corresponding rotating shaft is respectively connected to the first end of the joint bearing 33 through the hexagon bolt 32, and the first end of each of the joint bearings 33 is disposed at a position mating with the hexagon bolt 32 hole.
  • each of the hex bolts 32 is respectively parallel to the axes of the respective guide vanes 3.
  • a guide shaft 35 is rotatably connected to the second end of each of the joint bearings 33 away from the connecting rod 31, and each of the joint bearings 33 is also provided with a hole at a position matching the corresponding guide shaft 35, and each of the guide shafts 35 is provided. They are fixedly mounted on the worm disk 38, respectively.
  • the worm disk 38 is coaxially mounted on the outer circumference W1 of the intake guide vane casing away from the main shaft 28, the worm wheel 38 rotates to move the joint bearing 33, and the joint bearing 33 moves to drive the link 31 to rotate.
  • the annular array on the worm wheel 38 has a plurality of deep groove ball bearings 41 in contact with the outer circle W1 of the inlet guide vane casing, and the outer rings of each deep groove ball bearing 41 are respectively outside the outer casing of the inlet guide vane
  • the circle W1 is in contact with each other, and the axis of each deep groove ball bearing 41 is parallel to the axis of the main shaft 28, respectively.
  • Each of the deep groove ball bearings 41 is coaxially mounted with a bearing fixing shaft 42 respectively, and one end of each of the bearing fixing shafts 42 is fixedly mounted on the worm wheel disk 38, respectively.
  • a worm 37 is rotatably coupled to the worm wheel 38.
  • the two ends of the worm 37 are fixedly mounted on the inlet guide vane casing 43 by symmetrically disposed seat bearings 36, respectively.
  • the worm 37 is connected to the servo motor 40 via a coupling drive, and the servo motor 40 is fixedly mounted on the volute 4, and the servo motor 40 is provided with a motor driver 39.
  • the cooling mechanism includes a cooling jacket 15 of an annular structure that is indirectly cooled by the stator 16, and the cooling jacket 15 is coaxially fitted between the stator 16 and the outer casing 30.
  • the outer circular surface of the cooling jacket 15 is provided with a first pitch spiral groove F having an equal pitch along its axis.
  • a second pitch spiral groove I having an equal pitch is disposed in the first pitch spiral groove F along its axis.
  • An annular array of the one end of the cooling jacket 15 adjacent to the impeller 7 has a plurality of notches F4 for conveying the cold medium in the first pitch spiral groove F and the second pitch spiral groove 1.
  • One side of the cooling jacket 15 away from the volute 4 is provided with a casing air inlet E for conveying cold medium into the first pitch spiral groove F and the second pitch spiral groove 1.
  • a fourth pipe N is connected to the outer casing intake hole E, and the fourth pipe N communicates with the bypass outlet H of the volute through the third pipe M, and the bypass outlet H of the volute is opened on the outlet port W5 of the volute .
  • a second region D2 is formed between the left radial magnetic bearing 14, the main shaft 28, the outer casing 30, the cooling jacket 15 and the stator 16 to communicate with the notch F4.
  • the component located in the region can be Cool down.
  • the second region D2 communicates with a gap J1 between the stator and the main shaft formed between the main shaft 28 and the stator 16, and the cold medium in the second region D2 enters the gap J1 between the stator and the main shaft, and is carried out for the components located in the region. Cool down.
  • a third region D3 is formed between the main shaft 28, the stator 16, the right radial magnetic bearing 17, the axial magnetic bearing housing 18 and the cooling jacket 15, and a gap J1 between the stator and the main shaft, and a gap J1 between the stator and the main shaft
  • the inner cold medium enters the third region D3 to cool the components located in the region.
  • a gap J2 between the right radial magnetic bearing and the main shaft communicating with the third region D3 is disposed between the right radial magnetic bearing 17 and the main shaft 28, and the cold medium in the third region D3 enters the right radial magnetic bearing and the main shaft.
  • the gap J2 between the two is to cool the components located in the area.
  • a fourth region is formed between the main shaft 28, the thrust plate 46, the left axial magnetic bearing housing 21, the axial magnetic bearing housing 18 and the right radial magnetic bearing 17 to communicate with the gap J2 between the right radial magnetic bearing and the main shaft.
  • D4 the cold medium in the gap J2 between the right radial magnetic bearing and the main shaft enters the fourth region D4 to cool the components located in the region.
  • a hole D5 of the left axial magnetic bearing communicating with the fourth region D4 is opened along the axis of the main shaft 28 at a position on the left axial magnetic bearing 20 near the edge.
  • a hole D6 of the left axial magnetic bearing seat communicating with the hole D5 of the left axial magnetic bearing is provided along the axis of the main shaft 28 at a position on the left axial magnetic bearing housing 21 near the edge.
  • a hole D7 of the right axial magnetic bearing seat communicating with the hole D6 of the left axial magnetic bearing housing is provided along the axis of the main shaft 28 at a position on the right axial magnetic bearing housing 22 near the edge.
  • a hole D8 of the right axial magnetic bearing that communicates with the hole D7 of the right axial magnetic bearing housing is provided along the axis of the main shaft 28 at a position on the right axial magnetic bearing 24 near the edge.
  • the axes of the holes D5 of the left axial magnetic bearing, the holes D6 of the left axial magnetic bearing housing, the holes D7 of the right axial magnetic bearing housing, and the holes D8 of the right axial magnetic bearing are on the same straight line.
  • One end of the axial magnetic bearing housing 18 remote from the housing 30 is encapsulated by an end cap 29.
  • the area enclosed by the axial magnetic bearing housing 18, the right axial magnetic bearing 24, the axial auxiliary bearing housing 25, the axial auxiliary bearing cover 26, the end cover 29 and the main shaft 28 is the first area D1.
  • a hole D9 of the end cover is opened in a middle portion of the end cover 29, and a first pipe C is connected to one end of the hole D9 of the end cover.
  • One end of the first pipe C is connected to a second pipe B having a J-shaped structure, and one end of the second pipe B is connected to an intake pipe 1 disposed coaxially with the main shaft 28.
  • a hole A for connecting the second duct B and the intake duct of the intake duct 1 is provided at a position where the second duct B is in contact with the intake duct 1.
  • the intake duct 1 is fixedly connected to the intake vane casing 43 via a reducer 2 disposed coaxially therewith.
  • the left sensor 13, the left radial magnetic bearing 14, the right radial magnetic bearing 17, the right sensor 19, the left axial magnetic bearing 20, and the right axial magnetic bearing 24 are connected to the magnetic bearing controller.
  • the worm 37 is driven to rotate by the servo motor 40, the worm 37 drives the turbine disk 38 to rotate, and the turbine disk 38 rotates through the joint bearing 33 to push the link 31 to rotate around the axis of the guide vane 3 while diverting
  • the blade 3 is also rotated such that the guide vanes 3 mounted in the central bore of the inlet guide vane casing 43 are rotated at different angles to adjust the size of the central orifice W2 to adjust the flow rate.
  • the left radial magnetic bearing 14 and the right radial magnetic bearing 17 are controlled by the magnetic bearing controller to generate a radial force to cause the main shaft 28 to float up in a radially fixed position, while the left axial magnetic bearing 20, right
  • the axial force generated by the axial magnetic bearing 24 and the plurality of sector magnets 23 is applied to the thrust plate 46, so that the main shaft 28 is in a fixed axial position.
  • the left sensor 13 and the right sensor 19 at both ends of the main shaft 28 transmit information to the magnetic bearing controller, so that the magnetic force generated by the corresponding magnetic bearing changes to return the main shaft 28 to the original position, and the main shaft 28 is at The stator 16 and the main shaft 28 rotate under the action of a permanent magnet.
  • the cold medium of the flow regulating mechanism enters the compression chamber W3 formed by the impeller cover 45 and the impeller 7 blade along the flow guiding cone 44. Under the high speed rotation of the impeller 7, the cold medium is compressed to form a high pressure.
  • the flow path W4 of the volute is discharged from the discharge chamber W5 of the volute.
  • the cold medium enters the third region D3 along the gap J1 between the stator and the main shaft, and cools the right end of the stator 16.
  • the cold medium passes through the gap J2 between the right radial magnetic bearing and the main shaft into the fourth region D4, and then passes through the left axis.
  • the hole D5 of the magnetic bearing, the hole D6 of the left axial magnetic bearing housing, the hole D7 of the right axial magnetic bearing housing, and the hole D8 of the right axial magnetic bearing enter the first region D1, and are discharged from the hole D9 of the end cover to
  • the second pipe B is returned to the intake pipe 1 through the hole A of the intake pipe, and the cooling medium that enters the intake pipe 1 is compressed again with other cold medium, and a part thereof is continuously compressed.
  • the stator 16 and other components are cooled in accordance with the above process cycle.
  • the rotating mechanism and the cold medium compression mechanism are arranged to make the device more energy-saving, and the energy saving can reach 42%-50% or more, and the energy saving is 30% compared with the prior art;
  • the compressed refrigerant is realized by setting the flow control mechanism.
  • the multi-stage control of the medium flow reduces the load of the impeller under the premise of ensuring the flow, and prolongs the service life of the impeller; by setting the cooling mechanism, the automatic circulation cooling inside the device is realized, and the resources are saved, and the cost of the invention example can be Reduced by 30%-40%, easy to manufacture and promote.

Abstract

一种磁悬浮压缩机，包括外壳（30），外壳（30）内设置有旋转机构，旋转机构上设置有用于压缩冷媒介质的冷媒介质压缩机构，进入冷媒介质压缩机构的冷媒介质的流量由流量调节机构进行控制，旋转机构由冷却机构进行降温，以保证旋转机构的正常工作。该压缩机，通过设置旋转机构和冷媒介质压缩机构，更加节能；通过设置流量控制机构，实现了被压缩冷媒介质流量的多级控制，在保证流量的前提下减小叶轮的负荷，延长了叶轮的使用寿命；通过设置冷却机构，实现了内部自动循环冷却，节省资源，其成本可减低，便于生产制造及推广。

Description

一种磁悬浮压缩机
本申请要求在2018年3月15日提交中国专利局、申请号为201810212319.9、发明名称为“一种新型磁悬浮压缩机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及但不限于磁悬浮技术领域，具体地说涉及一种使用在中央空调及大型冷藏库上用的磁悬浮压缩机。
背景技术
磁悬浮空调机工作原理：磁悬浮空调通过高温高压将氟利昂从磁悬浮压缩机排出，进入冷凝器，向铜管冷却水释放热量，冷凝为中温高压氟利昂液体，然后经过截流阀降压为低温低压液体进入蒸发器，在蒸发器壳体内从流经铜管的冷冻水中吸收热量，气化为低温低压气体后吸入压缩机，在压缩机内经过二次压缩为高温高压气体排出，通过这种循环，最终达到降温的目的。
在申请号为CN201210354559.5，专利名称为一种径向磁悬浮压缩机的技术中只是公开了如何解决压缩机在旋转时产生巨大的偏力，导致轴承内圈膨胀变形，致使自私摩擦阻力加大的问题。
目前在磁悬浮压缩机系统中存在着好多问题：1.由PWM(脉冲宽度调制)电压供电，来实现变速运行，前端叶轮仍然较大的冷媒介的冲击。2.采用双级压缩，增大压缩机的体积及压缩机成本高。由于价格使得磁悬浮压缩机空调进入市场缓慢。经过我们技术人员不断试验论证开发出了一种磁悬浮压缩机可以解决目前磁悬浮压缩机领域存在的问题。
发明内容
针对上述问题，本申请的目的是提供一种磁悬浮压缩机。具体地，本申请提供一种磁悬浮压缩机来解决现有压缩机只依靠变速来解决流量问题及需要二级压缩才能达到压缩比要求成本高的问题。
本申请提供了一种磁悬浮压缩机，包括外壳、旋转机构、冷媒介质压缩机构和冷却机构，所述旋转机构设置在所述外壳内，所述冷媒介质压缩机构设置在所述旋转机构上，所述冷媒介质压缩机构用于压缩冷媒介质，并将压缩后的冷媒介质输送至所述冷却机构，所述冷却机构用于冷却所述旋转机构；其中，所述磁悬浮压缩机还包括流量调节机构，所述流量调节机 构控制进入所述冷媒介质压缩机构的冷媒介质的流量。
其中，所述流量调节机构设置有进气导叶外壳，所述进气导叶外壳设置有导流叶片机构，所述导流叶片机构包括导流叶片，且所述导流叶片为扇形结构。
其中，所述导流叶片机构还包括连杆，所述连杆设置在所述导流叶片的一端，所述连杆带动所述导流叶片旋转。
其中，所述导流叶片机构还包括关节轴承和蜗轮盘，所述关节轴承的第一端与所述连杆连接，所述蜗轮盘与所述关节轴承的第二端转动连接。
其中，所述导流叶片机构通过所述蜗轮盘安装在所述进气导叶外壳上，所述蜗轮盘与伺服电机转动连接，其中所述伺服电机与蜗壳固定安装，所述蜗壳安装在外壳上。
其中，所述导流叶片机构包括若干个。
其中，所述旋转机构包括定子和主轴，所述定子安装在所述外壳内，所述主轴安装在所述定子内；所述冷媒介质压缩机构包括叶轮，所述叶轮设置在所述主轴的第一端；所述冷却机构包括冷却套，所述冷却套设置在所述定子和所述外壳之间。
其中，所述冷媒介质压缩机构包括蜗壳，所述蜗壳内同轴装配有进气口，所述叶轮与所述进气口之间设置有叶轮罩，所述叶轮罩与所述叶轮的各叶片之间形成压缩腔。
其中，所述冷却套上的轴线设有第一螺距螺旋槽，所述第一螺距螺旋槽的螺距相等。
其中，所述第一螺距螺旋槽内设有第二螺距螺旋槽，所述第二螺距螺旋槽的螺距相等，所述第一螺距螺旋槽的螺距大于所述第二螺距螺旋槽的螺距。
其中，所述冷却套的一端设有环形阵列，所述环形阵列设有多个缺口，任意一个所述缺口将所述第一螺距螺旋槽和所述第二螺距螺旋槽内的冷媒介质输送出去。
其中，任意一个所述缺口连通有冷却区域，所述冷却区域由所述冷却套和所述主轴之间围成。
其中，所述冷却区域包括第二区域，所述第二区域由左径向磁轴承、所述主轴、所述外壳、所述冷却套和所述定子之间围成，其中，所述左径向磁轴承设置在所述主轴与所述外壳(30)之间。
其中，所述冷却区域还包括第三区域,所述第三区域与所述第二区域连通，所述第三区域由所述主轴、所述定子、右径向磁轴承、轴向磁轴承外壳和所述冷却套之间围成，其中，所述右径向磁轴承安装在所述主轴的第一端，所述轴向磁轴承外壳安装在所述右径向磁轴承上。
其中，所述冷却区域还包括第四区域,所述第四区域与所述第三区域连通，所述第四区域由所述主轴、推力盘、左轴向磁轴承座、所述轴向磁轴承外壳和所述右径向磁轴承之间围成，其中，所述推力盘安装在所述主轴的第一端，所述左轴向磁轴承座设置在所述推力盘与轴向 磁轴承外壳之间。
其中，所述冷却区域还包括第一区域,所述第一区域与所述第四区域连通，所述第一区域由所述轴向磁轴承外壳、右轴向磁轴承、轴向辅助轴承座、轴向辅助轴承盖、端盖和所述主轴之间围成，其中，所述右轴向磁轴承设在所述主轴的第一端，所述轴向辅助轴承座与所述右轴向磁轴承固定连接，所述轴向辅助轴承盖对所述轴向辅助轴承座的一侧进行封装，所述端盖对所述轴向磁轴承外壳一端进行封装。
本申请的有益效果包括：本申请所提供的磁悬浮压缩机通过设置旋转机构和冷媒介质压缩机构，使本装置更加节能，节能可达42％-50％以上，比现有技术节能30％；通过设置流量控制机构，实现了被压缩冷媒介质流量的多级控制，在保证流量的前提下减小叶轮的负荷，延长了叶轮的使用寿命；通过设置冷却机构，实现了本装置内部地自动循环冷却，节省资源，本发明的成本可减低30％-40％，便于生产制造及推广。
附图说明
并入到说明书中并且构成说明书的一部分的附图示出了本申请的实施例，并且与描述一起用于解释本申请的原理。在这些附图中，类似的附图标记用于表示类似的要素。下面描述中的附图是本申请的一些实施例，而不是全部实施例。对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，可以根据这些附图获得其他的附图。
图1是一种实施例中磁悬浮压缩机的结构示意图；
图2是一种实施例中磁悬浮压缩机的结构示意图；
图3是一种实施例中磁悬浮压缩机的结构示意图；
图4为一种实施例中磁悬浮压缩机的冷却套的结构示意图；
图5为一种实施例中磁悬浮压缩机的冷却套的结构示意图；
图6为图4中Q处的放大示意图；
图7为图1的局部放大图；
图8为一种实施例中磁悬浮压缩机的叶轮和叶轮罩的结构示意图；
图9为图8的侧视图；
图10为图8的剖视图。
具体实施方式
下面将结合本发明实施例中的附图，对本申请中的技术方案进行清楚、完整地描述，显 然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明实施例保护的范围。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
下面结合附图，对根据本发明实施例所提供的磁悬浮压缩机进行详细说明。
本发明实施例提供了一种磁悬浮压缩机，图1-图3为该磁悬浮压缩机的一种实施例的结构示意图，图4为磁悬浮压缩机的冷却套的一种实施例的结构示意图，图5为磁悬浮压缩机的冷却套的一种实施例的结构示意图，图6为图4中Q处的放大示意图，图7为图1的局部放大图，图8为磁悬浮压缩机的叶轮和叶轮罩的一种实施例的结构示意图，图9为图8的侧视图，图10为图8的剖视图，参照图1-图10所示，该磁悬浮压缩机，包括外壳30，外壳30内设置有旋转机构，旋转机构上设置有用于压缩冷媒介质的冷媒介质压缩机构，进入冷媒介质压缩机构的冷媒介质的流量由流量调节机构进行控制，旋转机构由冷却机构进行降温，以保证旋转机构的正常工作。
所述旋转机构包括同轴装配在外壳30内的定子16，定子16内同轴装配有用于驱动冷媒介质压缩机构工作的主轴28。
所述主轴28的第一端的外圆周上的位置与外壳30之间同轴装配有径向辅助轴承座10。
所述径向辅助轴承座10通过径向辅助轴承11与主轴28同轴装配，主轴28与径向辅助轴承座10之间靠近径向辅助轴承11一侧的位置通过径向辅助轴承盖9进行封装。
所述主轴28的第二端的外圆周上靠近径向辅助轴承座10的位置设置有左传感器13。
所述主轴28的第二端的外圆周上靠近左传感器13的位置与外壳30之间同轴装配有左径向磁轴承14。
所述左传感器13和左径向磁轴承14与外壳30之间同轴装配有径向磁轴承外壳12。
所述主轴28的外圆周上远离左传感器13的第一端同轴装配有右径向磁轴承17，右径向磁轴承17的外圆周上同轴装配有轴向磁轴承外壳18，轴向磁轴承外壳18与外壳30固定连接。
所述主轴28的第一端外圆周上靠近右径向磁轴承17的位置设置有用于检测主轴28位置的右传感器19，且右传感器19与右径向磁轴承17之间沿主轴28的轴线方向间隔一定距离，这样设计便于冷媒介质的流动。
所述主轴28的第一端外圆周上靠近右传感器19的位置同轴装配有纵截面为L型结构的推力盘46。
所述推力盘46的大外圆周上环形阵列有多个扇形磁铁23，多个扇形磁铁23与轴向磁轴承外壳18之间沿冷媒介质的流向依次设置有左轴向磁轴承座21和右轴向磁轴承座22。
所述左轴向磁轴承座21的一侧固定安装有与主轴28的第一端同轴设置的左轴向磁轴承20。
所述右轴向磁轴承座22的一侧固定安装有与主轴28的第一端同轴设置的右轴向磁轴承24。
所述右轴向磁轴承24与主轴28之间同轴设置有轴向辅助轴承座25，且轴向辅助轴承座25与右轴向磁轴承24之间通过螺栓固定连接。
所述轴向辅助轴承座25与主轴28之间同轴设置有轴向辅助轴承27。
所述轴向辅助轴承27和轴向辅助轴承座25的一侧通过轴向辅助轴承盖26进行封装。
所述冷媒介质压缩机构包括在主轴28的第一端同轴设置的用于压缩冷媒介质的叶轮7。
所述叶轮7与主轴28之间通过同轴设置的双头螺柱5进行连接，双头螺柱5的一端与主轴28之间通过螺纹连接，另一端穿过叶轮7外一定距离并通过螺栓进行封装。
所述双头螺柱5位于叶轮7外的一端同轴装配有导流锥44。
所述外壳30上靠近叶轮7的一端装配有蜗壳4。
所述蜗壳4内靠近叶轮7的位置同轴装配有进气口8，叶轮7的外部与进气口8之间设置有喇叭口状结构的叶轮罩45。
所述叶轮罩45与叶轮7之间焊接在一起，形成封闭式叶轮，叶轮罩45与叶轮7各叶片之间将形成压缩腔W3；叶轮叶片采用三元流后弯式叶片，叶片的出口角选在30度和45度之间，该叶轮在高速旋转，压缩腔W3对气体做功，压气效率高，压力损失小，可使冷媒介质的压缩比提高了一倍。
所述叶轮罩45上远离主轴28的位置与进气口8之间设置有进气密封6。
所述蜗壳4的内部与叶轮7的边缘处相对应的位置设置有蜗壳的流道W4，蜗壳的流道W4连通有蜗壳的出口腔W5，叶轮7将冷媒介质进行压缩后经过蜗壳的流道W4和蜗壳的出口腔W5输送至冷却机构。
所述流量调节机构包括中部设置有通孔的且纵截面为U型的进气导叶外壳43。
所述进气导叶外壳43的通孔内设置有若干个导流叶片机构，所述导流叶片机构包括所述进气导叶外壳43的通孔内靠近主轴28的位置环形阵列设置的有多个用于控制被压缩冷媒介质流量的导流叶片3，且每个导流叶片3均为扇形结构，每个导流叶片3通过旋转来调整自身沿风流向方向的面积，进而实现对冷媒介质流量的控制。
所述导流叶片3的一端沿其旋转轴线的方向一体连接有旋转轴，每个导流叶片3分别通过相应的旋转轴转动安装在进气导叶外壳43上，进气导叶外壳43固定安装在蜗壳4上。
相邻的两导流叶片3与进气导叶外壳43上相对应的内壁之间形成中心孔口W2。
所述进气导叶外壳43上U型结构的内壁靠近导流叶片3的一侧为进气导叶外壳的外圆W1。
所述导流叶片机构还包括连杆31，所述连杆31与所述每个旋转轴分别穿过进气导叶外壳43至进气导叶外壳的外圆W1外一定距离处固定安装，且每个旋转轴分别固定连接在连杆31上靠近一端的位置，连杆31旋转通过旋转轴带动导流叶片3旋转。
所述每个连杆31的上端面远离相应的旋转轴的位置分别通过六角螺栓32连接关节轴承33的第一端，每个关节轴承33的第一端上与六角螺栓32配合的位置开设有孔。
所述每个六角螺栓32的轴线分别与相应的导流叶片3的轴线平行。
所述每个关节轴承33上远离连杆31的第二端转动连接有导向轴35，每个关节轴承33上与相应的导向轴35相配合的位置也开设有孔，且每个导向轴35分别固定安装在蜗轮盘38上。
所述蜗轮盘38同轴装配在进气导叶外壳的外圆W1上远离主轴28的位置，蜗轮盘38旋转带动关节轴承33移动，关节轴承33移动带动连杆31旋转。
所述蜗轮盘38上环形阵列有多个与进气导叶外壳的外圆W1相接触的深沟球轴承41，且每个深沟球轴承41的外圈分别与进气导叶外壳的外圆W1相接触，每个深沟球轴承41的轴线分别与主轴28的轴线平行。
所述每个深沟球轴承41内分别同轴装配有轴承固定轴42，每个轴承固定轴42的一端分别固定安装在蜗轮盘38上。
所述蜗轮盘38上传动连接有蜗杆37，蜗杆37的两端分别通过对称设置的带座轴承36固定安装在进气导叶外壳43上。
所述蜗杆37通过联轴器传动连接有伺服电机40，伺服电机40固定安装在蜗壳4上，伺服电机40上设置有电机驱动器39。
所述冷却机构包括为定子16间接降温的环形结构的冷却套15，冷却套15同轴装配在定子16和外壳30之间。
所述冷却套15的外圆面上沿其轴线开设有螺距相等的第一螺距螺旋槽F。
所述第一螺距螺旋槽F内沿其轴线开设有螺距相等的第二螺距螺旋槽I。
所述冷却套15上靠近叶轮7的一端环形阵列有多个将第一螺距螺旋槽F和第二螺距螺旋槽I内的冷媒介质输送出去的缺口F4。
所述冷却套15的一侧远离蜗壳4的位置开设有用于向第一螺距螺旋槽F和第二螺距螺旋槽I内输送冷媒介质的外壳进气孔E。
所述外壳进气孔E上连通有第四管道N，第四管道N通过第三管道M连通有蜗壳的旁路出口H，蜗壳的旁路出口H开设在蜗壳的出口腔W5上。
所述左径向磁轴承14、主轴28、外壳30、冷却套15和定子16之间形成与缺口F4相通的第二区域D2，冷媒介质经过第二区域D2时可以为位于该区域的部件进行降温。
所述第二区域D2连通有主轴28与定子16之间形成的定子与主轴间的间隙J1，第二区域D2中的冷媒介质进入定子与主轴间的间隙J1，并为位于该区域的部件进行降温。
所述主轴28、定子16、右径向磁轴承17、轴向磁轴承外壳18和冷却套15之间形成和定子与主轴间的间隙J1相通的第三区域D3，定子与主轴间的间隙J1内的冷媒介质进入第三区域D3为位于该区域的部件进行降温。
所述右径向磁轴承17与主轴28之间设置有与第三区域D3相通的右径向磁轴承与主轴间的间隙J2，第三区域D3内的冷媒介质进入右径向磁轴承与主轴间的间隙J2为位于该区域的部件进行降温。
所述主轴28、推力盘46、左轴向磁轴承座21、轴向磁轴承外壳18和右径向磁轴承17之间形成与右径向磁轴承与主轴间的间隙J2相通的第四区域D4，右径向磁轴承与主轴间的间隙J2内的冷媒介质进入第四区域D4为位于该区域的部件进行降温。
所述左轴向磁轴承20上靠近边缘的位置沿主轴28的轴线开设有与第四区域D4相通的左轴向磁轴承的孔D5。
所述左轴向磁轴承座21上靠近边缘的位置沿主轴28的轴线开设有与左轴向磁轴承的孔D5相通的左轴向磁轴承座的孔D6。
所述右轴向磁轴承座22上靠近边缘的位置沿主轴28的轴线开设有与左轴向磁轴承座的孔D6相通的右轴向磁轴承座的孔D7。
所述右轴向磁轴承24上靠近边缘的位置沿主轴28的轴线开设有与右轴向磁轴承座的孔D7相通的右轴向磁轴承的孔D8。
所述左轴向磁轴承的孔D5、左轴向磁轴承座的孔D6、右轴向磁轴承座的孔D7和右轴向磁轴承的孔D8的轴线在同一条直线上。
所述轴向磁轴承外壳18远离外壳30的一端由端盖29进行封装。
所述轴向磁轴承外壳18、右轴向磁轴承24、轴向辅助轴承座25、轴向辅助轴承盖26、端盖29和主轴28之间围成的区域为第一区域D1。
所述端盖29的中部开设有端盖的孔D9，端盖的孔D9的一端连通有第一管道C。
所述第一管道C的一端连通有J型结构的第二管道B，第二管道B的一端连通有与主轴28同轴设置的进气管道1。
所述第二管道B与进气管道1相接触的位置开设有用于连通第二管道B与进气管道1的进气管道的孔A。
所述进气管道1通过与其同轴设置的变径管2与进气导叶外壳43固定连接。
所述左传感器13、左径向磁轴承14、右径向磁轴承17、右传感器19、左轴向磁轴承20和右轴向磁轴承24与磁轴承控制器相连。
使用时，流量调节机构工作时，通过伺服电机40驱动蜗杆37旋转，蜗杆37带动涡轮盘38旋转，涡轮盘38旋转通过关节轴承33推动连杆31绕导流叶片3的轴线旋转，同时导流叶片3也旋转，这样，安装在进气导叶外壳43中心孔中的导流叶片3转动不同的角度，就可调节中心孔口W2的大小，从而调节流量的大小。
旋转机构工作时，通过磁轴承控制器控制左径向磁轴承14和右径向磁轴承17产生径向力使主轴28浮起来而处于径向固定位置，同时在左轴向磁轴承20、右轴向磁轴承24和多块扇形磁铁23共同作用下产生的轴向力施加于推力盘46上，从而使主轴28处于固定轴向位置。
当主轴28的位置发生变动时，主轴28两端的左传感器13和右传感器19将信息传递至磁轴承控制器，从而使相应磁轴承产生的磁力发生变化使主轴28重回原位，主轴28在定子16和主轴28内部永磁铁的作用下转动。
冷媒介质压缩机构工作时，通过流量调节机构的冷媒介质沿导流锥44进入叶轮罩45和叶轮7叶片形成的压缩腔W3中，在叶轮7高速地旋转作用下，冷媒介质被压缩形成高压进入蜗壳的流道W4中，从蜗壳的排出腔W5排出。
冷却机构工作时，经压缩过的冷媒介质的一部分在蜗壳的旁路出口H导出经第三管道M和第四管道N通过外壳进气孔E进入第一螺距螺旋槽F和第二螺距螺旋槽I内，冷媒介质沿着大、第二螺距螺旋槽从冷却套15的右端流向左端并从缺口F4处流入第二区域D2，对定子16的左端进行冷却。
冷媒介质沿着定子与主轴间的间隙J1进入到第三区域D3，对定子16的右端进行冷却，冷媒介质通过右径向磁轴承与主轴间的间隙J2进入第四区域D4，再通过左轴向磁轴承的孔D5、左轴向磁轴承座的孔D6、右轴向磁轴承座的孔D7及右轴向磁轴承的孔D8进入第一区域D1，从端盖的孔D9排入到第一管道C中，经第二管道B通过进气管道的孔A返回到进气管道1内，进入进气管道1的起冷却作用的冷媒介质随其他冷媒介质再次被压缩，其中的一部分不断地按照上述流程循环对定子16及其他部件进行冷却。
上面描述的内容可以单独地或者以各种方式组合起来实施，而这些变型方式都在本发明实施例的保护范围之内。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性 的包含，从而使得包括一系列要素的物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括……”限定的要素，并不排除在包括所述要素的物品或者设备中还存在另外的相同要素。
以上实施例仅用以说明本申请的技术方案而非限制，仅仅参照较佳实施例对本申请进行了详细说明。本领域的普通技术人员应当理解，可以对本申请的技术方案进行修改或者等同替换，而不脱离本申请技术方案的精神和范围，均应涵盖在本申请的权利要求范围当中。
工业实用性
本发明实施例中通过设置旋转机构和冷媒介质压缩机构，使本装置更加节能，节能可达42％-50％以上，比现有技术节能30％；通过设置流量控制机构，实现了被压缩冷媒介质流量的多级控制，在保证流量的前提下减小叶轮的负荷，延长了叶轮的使用寿命；通过设置冷却机构，实现了本装置内部地自动循环冷却，节省资源，发明实施例的成本可减低30％-40％，便于生产制造及推广。

Claims (16)

  1. 一种磁悬浮压缩机，所述磁悬浮压缩机包括外壳(30)、旋转机构、冷媒介质压缩机构和冷却机构，所述旋转机构设置在所述外壳(30)内，所述冷媒介质压缩机构设置在所述旋转机构上，所述冷媒介质压缩机构用于压缩冷媒介质，并将压缩后的冷媒介质输送至所述冷却机构，所述冷却机构用于冷却所述旋转机构；其中，所述磁悬浮压缩机还包括流量调节机构，所述流量调节机构控制进入所述冷媒介质压缩机构的冷媒介质的流量。
  2. 如权利要求1所述的磁悬浮压缩机，其中，
    所述流量调节机构设置有进气导叶外壳(43)，所述进气导叶外壳(43)设置有导流叶片机构，所述导流叶片机构包括导流叶片(3)，且所述导流叶片(3)为扇形结构。
  3. 如权利要求2所述的磁悬浮压缩机，其中，
    所述导流叶片机构还包括关节轴承(33)和蜗轮盘(38)，所述关节轴承(33)的第一端与所述连杆(31)的另一端连接，所述蜗轮盘(38)与所述关节轴承(33)的第二端转动连接。
  4. 如权利要求3所述的磁悬浮压缩机，其中，
    所述导流叶片机构还包括关节轴承(33)和蜗轮盘(38)，所述关节轴承(33)的第一端与所述连杆(31)连接，所述蜗轮盘(38)与所述关节轴承(33)的第二端转动连接。
  5. 如权利要求4所述的磁悬浮压缩机，其中，
    所述导流叶片机构通过所述蜗轮盘(38)安装在所述进气导叶外壳(43)上，所述蜗轮盘(38)与伺服电机(40)转动连接，其中所述伺服电机(40)与蜗壳(4)固定安装，所述蜗壳(4)安装在外壳(30)上。
  6. 如权利要求2-5任一所述的磁悬浮压缩机，其中，
    所述导流叶片机构包括若干个。
  7. 如权利要求1-6任一所述的磁悬浮压缩机，其中，
    所述旋转机构包括定子(16)和主轴(28)，所述定子(16)安装在所述外壳(30)内，所述主轴(28)安装在所述定子(16)内；
    所述冷媒介质压缩机构包括叶轮(7)，所述叶轮(7)设置在所述主轴(28)的第一端；
    所述冷却机构包括冷却套(15)，所述冷却套(15)设置在所述定子(16)和所述外壳(30)之间。
  8. 如权利要求7所述的磁悬浮压缩机，其中，
    所述冷媒介质压缩机构包括蜗壳(4)，所述蜗壳(4)内同轴装配有进气口(8)，所述叶轮(7)与所述进气口(8)之间设置有叶轮罩(45)，所述叶轮罩(45)与所述叶轮(7)的各叶片之间形成压缩腔(W3)。
  9. 如权利要求7所述的磁悬浮压缩机，其中，
    所述冷却套(15)上的轴线设有第一螺距螺旋槽(F)，所述第一螺距螺旋槽(F)的螺距相等。
  10. 如权利要求9所述的磁悬浮压缩机，其中，
    所述第一螺距螺旋槽(F)内设有第二螺距螺旋槽(I)，所述第二螺距螺旋槽(I)的螺距相等，所述第一螺距螺旋槽(F)的螺距大于所述第二螺距螺旋槽(I)的螺距。
  11. 如权利要求10所述的磁悬浮压缩机，其中，
    所述冷却套(15)的一端设有环形阵列，所述环形阵列设有多个缺口(F4)，任意一个所述缺口(F4)将所述第一螺距螺旋槽(F)和所述第二螺距螺旋槽(I)内的冷媒介质输送出去。
  12. 如权利要求11所述的磁悬浮压缩机，其中，
    任意一个所述缺口(F4)连通有冷却区域，所述冷却区域由所述冷却套(15)和所述主轴(28)之间围成。
  13. 如权利要求12所述的磁悬浮压缩机，其中，
    所述冷却区域包括第二区域(D2)，所述第二区域(D2)由左径向磁轴承(14)、所述主轴(28)、所述外壳(30)、所述冷却套(15)和所述定子(16)之间围成，其中，所述左径向磁轴承(14)设置在所述主轴(28)与所述外壳(30)之间。
  14. 如权利要求13所述的磁悬浮压缩机，其中，
    所述冷却区域还包括第三区域(D3),所述第三区域(D3)与所述第二区域(D2)连通， 所述第三区域(D3)由所述主轴(28)、所述定子(16)、右径向磁轴承(17)、轴向磁轴承外壳(18)和所述冷却套(15)之间围成，其中，所述右径向磁轴承(17)安装在所述主轴(28)的第一端，所述轴向磁轴承外壳(18)安装在所述右径向磁轴承(17)上。
  15. 如权利要求14所述的磁悬浮压缩机，其中，
    所述冷却区域还包括第四区域(D3),所述第四区域(D4)与所述第三区域(D3)连通，所述第四区域(D4)由所述主轴(28)、推力盘(46)、左轴向磁轴承座(21)、所述轴向磁轴承外壳(18)和所述右径向磁轴承(17)之间围成，其中，所述推力盘(46)安装在所述主轴(28)的第一端，所述左轴向磁轴承座(21)设置在所述推力盘(46)与轴向磁轴承外壳(18)之间。
  16. 如权利要求15所述的磁悬浮压缩机，其中，
    所述冷却区域还包括第一区域(D4),所述第一区域(D1)与所述第四区域(D4)连通，所述第一区域(D1)由所述轴向磁轴承外壳(18)、右轴向磁轴承(24)、轴向辅助轴承座(25)、轴向辅助轴承盖(26)、端盖(29)和所述主轴(28)之间围成，其中，所述右轴向磁轴承(24)设在所述主轴(28)的第一端，所述轴向辅助轴承座(25)与所述右轴向磁轴承(24)固定连接，所述轴向辅助轴承盖(26)对所述轴向辅助轴承座(25)的一侧进行封装，所述端盖(29)对所述轴向磁轴承外壳(18)一端进行封装。
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