CN105782075A - Turbo compressor and refrigerating device - Google Patents
Turbo compressor and refrigerating device Download PDFInfo
- Publication number
- CN105782075A CN105782075A CN201610019532.9A CN201610019532A CN105782075A CN 105782075 A CN105782075 A CN 105782075A CN 201610019532 A CN201610019532 A CN 201610019532A CN 105782075 A CN105782075 A CN 105782075A
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- China
- Prior art keywords
- mentioned
- outer housing
- bearing outer
- turbo
- compressor
- Prior art date
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- 239000011888 foil Substances 0.000 claims abstract description 70
- 230000001133 acceleration Effects 0.000 claims abstract description 60
- 230000002159 abnormal effect Effects 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 62
- 238000007906 compression Methods 0.000 claims description 62
- 238000005057 refrigeration Methods 0.000 claims description 18
- 239000006200 vaporizer Substances 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Classifications
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- 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
- 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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage 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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- 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
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- 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
- F04D29/051—Axial thrust balancing
- F04D29/0513—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
-
- 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
- F04D29/057—Bearings hydrostatic; hydrodynamic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/053—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of turbine type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a turbo compressor and a refrigerating device. The turbo compressor comprises a motor outer cover; a stator arranged in the motor outer cover; a rotor configured on the inner side of the stator in a rotary mode; a shaft provided with the rotor; an impeller arranged on the shaft; a bearing outer cover combined with the motor outer cover; a thrust collar arranged on the shaft; a first foil air bearing located between one surface of the thrust collar and the bearing outer cover; a sealing component arranged on the bearing outer cover; a second foil air bearing located between another surface of the thrust collar and the sealing component; and an acceleration sensor arranged on the periphery of the bearing outer cover. Accordingly, when the foil air bearings are abnormal, the turbo compressor can effectively reduce bearing outer excessive vibration caused by acceleration sensor arranged on the periphery of the bearing outer cover.
Description
Technical field
The present invention relates to turbo-compressor and there is its refrigeration machine, especially, relating to the turbo-compressor being provided with foil air bearing and the refrigeration machine with it.
Background technology
Generally, refrigeration machine can divide into Absorption Refrigerator and vapour compression refrigerator.
Vapour compression refrigerator comprises the steps that condenser, available compressor compresses cold-producing medium, makes the cold-producing medium compressed within the compressor be condensed；Expansion mechanism, makes the cold-producing medium being condensed at condenser expand；And vaporizer, make the cold-producing medium evaporation expanded at expansion mechanism.
The compressor of vapour compression refrigerator can use the turbo-compressor in centrifugal compressor, and in the case, the cold-producing medium in evaporator evaporation can flow into turbo-compressor and be compressed, and the cold-producing medium compressed in turbo-compressor flows to condenser and evaporates.
Turbo-compressor comprises the steps that motor section, is used for producing power；And compression mechanical part is (following, it is called compression unit), sucking cold-producing medium by the driving force transmitted from motor section and compress above-mentioned cold-producing medium, above-mentioned turbo-compressor can make to be converted to level pressure at kinetic energy produced by motor section and discharge the cold-producing medium of high pressure conditions.
Turbo-compressor comprises the steps that radial bearing, for supporting the axle of motor section to radial direction；And thrust bearing, for axially supporting axle.
Prior art literature
Patent Document
US2004/0179947A1(09.16.2004)
Summary of the invention
In the compressor of conventional art, it is arranged at the decoding dish within compressor and detects the speed of rotary components, with the controller of the decoding dish communication rotation number based on the Data Control rotary components detected by decoding dish, but there is decoding dish and be difficult to by detecting whether the velocity measuring thrust bearing of rotary components abnormal problem occurs.
The present invention includes: outsides cover of electric machinery；Stator, is configured at the inside of above-mentioned outsides cover of electric machinery；Rotor, is configured at the inner side of said stator in rotary manner；Axle, is provided with above-mentioned rotor；Clutch shaft bearing outer housing, combines with the side of above-mentioned outsides cover of electric machinery；First seal member, is arranged at above-mentioned clutch shaft bearing outer housing；First compression unit, is arranged at above-mentioned clutch shaft bearing outer housing；First impeller, is arranged at above-mentioned axle in the way of being positioned at above-mentioned first compression unit inside；Second bearing outer housing, combines with the opposite side of above-mentioned outsides cover of electric machinery；Second compression unit, is arranged at above-mentioned second bearing outer housing；Second seal member, is arranged at above-mentioned second bearing outer housing；Second impeller, is arranged at above-mentioned axle in the way of being positioned at above-mentioned second compression unit inside；Connecting tube, is used for connecting above-mentioned first compression unit and the second compression unit；Thrust ring, is arranged at above-mentioned axle；First foil air bearing, between the one side and above-mentioned second bearing outer housing of above-mentioned thrust ring；Second seal member, is arranged at above-mentioned second bearing outer housing；Second foil air bearing, between the another side and above-mentioned second seal member of above-mentioned thrust ring；And acceleration transducer, it is arranged at the periphery of above-mentioned second bearing outer housing.
Acceleration transducer may be disposed at the outside of the radial direction of the above-mentioned thrust ring in the periphery of above-mentioned second bearing outer housing.
Above-mentioned acceleration transducer may be disposed at the position of the extended line intersection extended from above-mentioned thrust hoop radial direction in the periphery of above-mentioned second bearing outer housing.
The present invention includes: outsides cover of electric machinery；Stator, is configured at the inside of above-mentioned outsides cover of electric machinery；Rotor, is configured at the inner side of said stator in rotary manner；Axle, is provided with above-mentioned rotor；Impeller, is arranged at above-mentioned axle；Bearing outer housing, combines with above-mentioned outsides cover of electric machinery；Thrust ring, is arranged at above-mentioned axle；First foil air bearing, between the one side and above-mentioned bearing outer housing of above-mentioned thrust ring；Seal member, is arranged at above-mentioned bearing outer housing；Second foil air bearing, between the another side and above-mentioned seal member of above-mentioned thrust ring；And acceleration transducer, it is arranged at the periphery of above-mentioned bearing outer housing.
The present invention includes: turbo-compressor, is used for compressing cold-producing medium；Condenser, for making the cold-producing medium compressed in above-mentioned turbo-compressor be condensed；Expansion mechanism, for making the cold-producing medium being condensed at above-mentioned condenser expand；Vaporizer, for making the cold-producing medium evaporation expanded at above-mentioned expansion mechanism；And control portion, it being used for controlling above-mentioned turbo-compressor, above-mentioned turbo-compressor includes: outsides cover of electric machinery；Stator, is configured at the inside of above-mentioned outsides cover of electric machinery；Rotor, is configured at the inner side of said stator in rotary manner；Axle, is provided with above-mentioned rotor；Impeller, is arranged at above-mentioned axle；Bearing outer housing, combines with above-mentioned outsides cover of electric machinery；Thrust ring, is arranged at above-mentioned axle；First foil air bearing, between the one side and above-mentioned bearing outer housing of above-mentioned thrust ring；Seal member, is arranged at above-mentioned bearing outer housing；Second foil air bearing, between the another side and above-mentioned seal member of above-mentioned thrust ring；And acceleration transducer, it is arranged at around above-mentioned bearing outer housing.
Above-mentioned acceleration transducer may be disposed at the outside of the radial direction of the above-mentioned thrust ring in the periphery of above-mentioned bearing outer housing.
Above-mentioned acceleration transducer may be disposed at the position of the extended line intersection extended from above-mentioned thrust hoop radial direction in the periphery of above-mentioned bearing outer housing.
Can forming, in the one side of above-mentioned bearing outer housing, the accepting groove housing above-mentioned thrust ring in the way of can making the rotation of above-mentioned thrust ring, above-mentioned acceleration transducer may be disposed at the position that the extended line extended from above-mentioned accepting groove in the periphery of above-mentioned bearing outer housing intersects to the radial direction of above-mentioned bearing outer housing.
Above-mentioned bearing outer housing can include metallic plate and cylindrical portion, above-mentioned metallic plate combines with above-mentioned outsides cover of electric machinery, above-mentioned cylindrical portion is configured at above-mentioned metallic plate in a projecting manner, above-mentioned cylindrical portion is for surrounding a part for above-mentioned axle, can being arranged to support the 3rd foil air bearing of above-mentioned axle in above-mentioned cylindrical portion, above-mentioned acceleration transducer may be disposed at the periphery of above-mentioned metallic plate.
If the detected value of above-mentioned acceleration transducer is in the abnormal ranges bigger than normal range, then above-mentioned control portion can make above-mentioned compressor stop.
If the detected value of above-mentioned acceleration transducer is in the abnormal ranges bigger than normal range, then the exception of above-mentioned compressor can be informed by alert mechanism by above-mentioned control portion.
The invention have the advantages that, the acceleration transducer being arranged at the periphery of bearing outer housing can effectively detect the bearing outer housing undue oscillation occurred when foil air bearing exception.
Further, the invention have the advantages that, acceleration transducer is arranged at the periphery of bearing outer housing, thus acceleration transducer easy to set up, and be easy to provide acceleration transducer related service.
Further, the invention have the advantages that, acceleration transducer is not affected by the high temperature within outsides cover of electric machinery, can detect the vibration values of bearing outer housing more exactly.
Accompanying drawing explanation
Fig. 1 is the figure of the structure of an embodiment of the refrigeration machine illustrating the turbo-compressor with the present invention.
Fig. 2 is the sectional view of an embodiment of the turbo-compressor illustrating the present invention.
Fig. 3 is the amplification view of the part A shown in Fig. 2.
Detailed description of the invention
Hereinafter, with reference to accompanying drawing, describe the embodiment of the present invention in detail.
Fig. 1 is the sectional view of the embodiment that figure, Fig. 2 are the turbo-compressor illustrating the present invention of the structure of an embodiment of the refrigeration machine of the turbo-compressor illustrating the present invention, and Fig. 3 is the amplification view of the part A shown in Fig. 2.
The refrigeration machine with turbo-compressor includes: turbo-compressor 1, is used for compressing cold-producing medium；Condenser 2, is connected with turbo-compressor 1 by refrigerant tubing, for making the cold-producing medium compressed in turbo-compressor 1 be condensed；Expansion mechanism 3, is connected with condenser 2 by refrigerant tubing, for making the cold-producing medium being condensed at condenser 2 expand；Vaporizer 4, is connected with expansion mechanism 3 by refrigerant tubing, for making the cold-producing medium evaporation expanded at expansion mechanism 3；And control portion 5, it is used for controlling turbo-compressor 1.
Condenser 2 can with cooling water inflow pipe 2A and cooling water flow out of pipeline 2B and be connected, above-mentioned cooling water inflow pipe 2A is for making to flow into condenser 2 by cooled cooling water such as cooling towers, and the above-mentioned pipeline 2B that cooling water flow out of is for making the cooling water carrying out heat exchange in condenser 2 with cold-producing medium move to cooling tower etc..
Expansion mechanism 3 maybe can be changed the electric expansion valve of aperture and constitute by capillary tube.When expansion mechanism 3 is made up of electric expansion valve, control portion 5 can be passed through and regulate the aperture of expansion mechanism 3.
Vaporizer 4 can be connected with cold water flow ipe 4A and cold water discharge line 4B, above-mentioned cold water flow ipe 4A is for making plan flow into vaporizer 4 by the cold water that vaporizer 4 is cooled, and above-mentioned cold water discharge line 4B moves to the cold water demand place of the refrigeration pipe arrangement or the air-conditioning unit etc. that are arranged at building for making to carry out with cold-producing medium heat exchange the cold water that cools off in vaporizer 4.
Control portion 5 is mountable to turbo-compressor 1.Control portion 5 can pass through holding wire 79 and be connected with the acceleration transducer described later being arranged at turbo-compressor 1.
Whether control portion 5 can be abnormal according to the detected value detection turbo-compressor 1 detected at acceleration transducer 79, if judging, turbo-compressor 1 is abnormal, then can stop turbo-compressor 1.If the detected value of acceleration transducer 78 is in the abnormal ranges bigger than normal range, then control portion 5 can stop turbo-compressor 1.
Whether control portion 5 can be abnormal according to the detected value detection turbo-compressor 1 detected at acceleration transducer 38, if judging, turbo-compressor 1 is abnormal, then can pass through alert mechanism 6 and inform the exception of turbo-compressor 1.Wherein, alert mechanism 6 can be made up of the display of the information for showing refrigeration machine, or can be made up of the buzzer etc. of the information that can inform refrigeration machine to outside.
If the detected value of acceleration transducer 78 is in the abnormal ranges bigger than normal range, then the exception of turbo-compressor 1 can be informed by alert mechanism 6 by control portion 5.
Hereinafter, turbo-compressor 1 is described as follows.
Motor section M in turbo-compressor 1 can start compression unit C.A motor section M in turbo-compressor 1 can start two compression units C1, C2, and in the case, turbo-compressor 1 comprises the steps that the first compression unit C1, is arranged at the side of motor section M；And the second compression unit C2, it is arranged at the opposite side of motor section M.When turbo-compressor 1 includes two compression unit C1, C2, two compression units C1, C2 can configure across motor section M in a symmetrical manner in centre.Having the cold-producing medium of refrigeration machine of turbo-compressor after vaporizer 4 evaporates, compressed at two compression units C1, C2, afterwards, above-mentioned cold-producing medium flows to condenser 2.
Two compression units C1, C2 can make gas compressed cold-producing medium in the first compression unit C1 be compressed in the second compression unit C2.First compression unit C1 and the second compression unit C2 can be connected by the refrigerant pipe of refrigerant tubing etc..In two compression units C1, C2, can being compressed for the second time after flowing into the second compression unit C2 in two compression units C1, C2 by compression unit cold-producing medium in the first compression unit C1 first time, the cold-producing medium compressed by two compression unit C1, C2 multistages can flow to condenser 2.Certainly, two compression units C1, C2 can be in parallel.
Turbo-compressor 1 includes: outsides cover of electric machinery 101；Stator 20, is configured at the inside of outsides cover of electric machinery 10；Rotor 30, is configured at the inner side of stator 10 in rotary manner；Axle 40, is provided with rotor 20；And impeller 90, it is arranged at axle 40.
Turbo-compressor 1 includes: bearing outer housing 50, combines with outsides cover of electric machinery 2；Thrust ring 70, is arranged at axle 30；First foil air bearing 72, between the one side and bearing outer housing 50 of thrust ring 70；Seal member 74, is arranged at bearing outer housing 50；Second foil air bearing 76, between the another side and seal member 74 of thrust ring 70；And acceleration transducer 78, it is arranged at the periphery of bearing outer housing 50.
The acceleration transducer 78 being arranged at outsides cover of electric machinery 10, stator 20, rotor 30, axle 40, bearing outer housing 50, thrust ring the 70, first foil air bearing 72, seal member the 74, second foil air bearing 76 and the periphery that is arranged at bearing outer housing 50 may make up motor section M.
Outsides cover of electric machinery 10 can be the outside motor shell of the outward appearance forming motor section M.Flange 14 can be formed at the hollow cylinder 13 of outsides cover of electric machinery 10.
The space for housing stator 20 and rotor 30 can be internally formed at hollow cylinder 13.At the prominent formation branched portion 15 of hollow cylinder 13, can be formed with, at above-mentioned branched portion 15, the through hole that the processes such as electric wire can be made.Outsides cover of electric machinery 12 can combine with the cap 16 being used for covering branched portion 15.The providing holes 18 for arranging power end sub bar 17 can be formed at cap 16.
The big I of flange 14 is more than the size of hollow cylinder 13.Flange 14 can be hollow plectane shape, and above-mentioned flange 14 can be close to bearing outer housing 50 and the bearing outer housing that combines with bearing outer housing 50 arranges plate.
When turbo-compressor 1 includes two compression unit C1, C2, turbo-compressor 1 can include two bearings outer housing 50A, 50B.Clutch shaft bearing outer housing 50A in two bearings outer housing 50A, 50B can combine with the side of outsides cover of electric machinery 12, and the second bearing outer housing 50B in two bearings outer housing 50A, 50B can combine with the opposite side of outsides cover of electric machinery 12.
Flange 14 can be respectively formed in one end and the other end of hollow cylinder 13.Outsides cover of electric machinery 12 comprises the steps that the first flange 14A, is formed at one end of hollow cylinder 13；And the second flange 14B, it is formed at the other end of hollow cylinder 13.First flange 14A can combine with clutch shaft bearing outer housing 50A, and the second flange 14B can combine with the second bearing outer housing 50B.
Stator 20 may be disposed at the inner circumferential of outsides cover of electric machinery 10.Stator 20 can be hollow cylinder shape.Stator 20 can form magnetic field from external reception power supply.Can at the coiling iron core coil of stator 20.Stator 20 is connected with power end sub bar 17 by electric wire, thus said stator 20 can receive power supply from power end sub bar 17.
Rotor 30 may be disposed at the periphery of axle 40, above-mentioned rotor 30 may be disposed in the periphery of axle 40 with stator 20 position in opposite directions.Rotor 30 can by means of the magnetic field high speed rotating sensed with stator 20.Motor section M in turbo-compressor can be brushless direct-current (BLDC) motor, and rotor can rotate by the induced field sensed by stator 20.Rotor 30 comprises the steps that Magnet, length are likely to be less than the length of axle 40；And magnet holder, it is used for making Magnet be fixed on axle 30.
When rotor 40 rotates, axle 40 can rotate together with rotor 30.The length of axle 40 can more than the length of rotor 30.The length of axle 40 can more than the length of outsides cover of electric machinery 10.One end 41 of axle 40 and the other end 42 can lay respectively at the outside of outsides cover of electric machinery 10.When turbo-compressor 1 includes two compression unit C1, C2, as shown in Figure 1, one end 41 of axle 40 can extend to the inside of the first compression unit C1 in two compression units C1, C2, and the other end of axle 40 can extend to the inside of the second compression unit C2 in two compression units C1, C2.
Turbo-compressor 1 can include at least one bearing for supporting axle 30, and bearing outer housing 50 can support and protect above-mentioned bearing.
When turbo-compressor 1 includes two compression unit C1, C2, bearing outer housing 50 may be disposed at two outsides cover of electric machineries 10.Bearing outer housing 50 comprises the steps that clutch shaft bearing outer housing 50A, combines with the first flange 14A；And the second bearing outer housing 50B, combine with the second flange 14B.Below, when the common structure of clutch shaft bearing outer housing 50A and the second bearing outer housing 50B is described, above-mentioned clutch shaft bearing outer housing 50A and the second bearing outer housing 50B is called bearing outer housing 50, when distinguishing explanation clutch shaft bearing outer housing 50A and the second bearing outer housing 50B, it is called clutch shaft bearing outer housing 50A and the second bearing outer housing 50B.
Bearing outer housing 50 comprises the steps that metallic plate 52, combines with outsides cover of electric machinery 50；And cylindrical portion 54, it is configured at metallic plate 52 in a projecting manner, for surrounding a part for axle 40.
Cylindrical portion 54 can form as one with metallic plate 52.Cylindrical portion 54 can be made up of the bearing shell of the hollow cylinder shape independently formed with metallic plate 52, such that it is able to be connected with metallic plate 52.Cylindrical portion 54 can at metallic plate 52 to prominent towards the direction of rotor 30.
Can be arranged to support the 3rd foil air bearing 60 of axle 40 in cylindrical portion 54.3rd foil air bearing 60 can support axle 40 between axle 40 and cylindrical portion 54 in the way of can making axle 40 rotation.Multiple 3rd foil air bearings 60 in turbo-compressor can support axle 40.3rd foil air bearing 60 can be respectively arranged at the cylindrical portion 54 of clutch shaft bearing outer housing 50A and the cylindrical portion 54 of the second bearing outer housing 50B.
3rd foil air bearing 60 can include multiple paillon foils of thin sheet form, and when axle 40 rotates, above-mentioned axle 40 can be supported by the working gas between multiple paillon foils and axle 40 or air layer.Multiple paillon foils comprise the steps that insertion section, make paillon foil be fixed on the insertion groove that the inner circumferential in cylindrical portion 54 is formed in the way to insert；And support portion, extend from insertion section and there is curved surface.
Impeller 90 is arranged at the end of axle 40, thus, when axle 40 rotates, above-mentioned impeller 90 can rotate together with axle 40.Multiple impeller 90 can be set in turbo-compressor.
Turbo-compressor 1 can be made up of by the two benches turbo-compressor that the multistage compresses cold-producing medium multiple impellers 90.In turbo-compressor 1, respectively impeller 90 can be set in one end 41 of axle 40 and the other end 42.Turbo-compressor 1 comprises the steps that the first impeller 90A, is arranged at one end of axle 40；And the second impeller 90B, it is arranged at the other end of axle 40.First impeller 90A can be arranged at axle 40 in the way of being positioned at the first compression unit C1 inside.And, the second impeller 90B can be arranged at axle 40 in the way of being positioned at the second compression unit C2 inside.
Turbo-compressor 1 comprises the steps that entrance guiding piece 100, is used for impeller 90 guiding gas cold-producing medium；Bubbler 110, for being transformed to pressure energy by the kinetic energy of the refrigerant gas flowed by impeller 90；And volute outer housing 120, it being formed with spiral channels 118, above-mentioned spiral channels 118 is for assembling the air by wheel 90 flowing.
When turbo-compressor 1 includes two compression unit C1, C2, each compression unit C1, C2 can include entrance guiding piece 100 and bubbler 110 and volute outer housing 120.
First compression unit C1 comprises the steps that the first entrance guiding piece 100A, is used for the first impeller 90A guiding gas cold-producing medium；First bubbler 110A, for making the kinetic energy of the refrigerant gas by the first impeller 90A flowing be transformed to pressure energy；And the first volute outer housing 120A, it is formed with the first spiral channels 118A, above-mentioned spiral channels 118A for making the air accumulation by first round 90A flowing.
And, the second compression unit C2 comprises the steps that the second entrance guiding piece 100B, is used for the second impeller 90B guiding gas cold-producing medium；Second bubbler 110B, for making the kinetic energy of the refrigerant gas by the second impeller 90B flowing be transformed to pressure energy；And the second volute outer housing 120B, it is formed with the second spiral channels 118B, above-mentioned second spiral channels 118B for making the air accumulation by the second impeller 90B flowing.
The accepting groove 58 housing thrust ring 70 in the way of can making thrust ring 70 rotation can be formed in the one side of bearing outer housing 50.Accepting groove 58 can be formed at the one side of metallic plate 52.Accepting groove 58 can in metallic plate 52 with outsides cover of electric machinery 10 inside the opposing face 52B of face 52A in opposite directions formed with the shape of depression.Accepting groove 58 can more than thrust ring 70.
When turbo-compressor 1 includes two compression unit C1, C2, accepting groove 58 can only be formed in two bearings outer housing 50A, 50B.Accepting groove 58 is not formed at the bearing outer housing 50A close to the first compression unit C1, and accepting groove 58 can be formed at the bearing outer housing 50B close to the second compression unit C2.
In order to ensure thrust support area, thrust ring 70 is arranged at axle 40, and above-mentioned thrust ring can more than axle 40.Thrust ring 70 can disk-shaped shape.Thrust ring 70 can highlight in the direction that the outer circumference of axle 40 is orthogonal with the length direction of axle 40.The one side 70A of thrust ring 70 can with the first foil air bearing 72 in opposite directions, and the another side 70B of thrust ring 70 can with the second foil air bearing 76 in opposite directions.
First foil air bearing 72 can axially support thrust ring 70 in the position separated with the second foil air bearing 76.
First foil air bearing 72 can include the multiple paillon foils being arranged at the thin sheet form of metallic plate 52.When thrust ring 70 rotates, above-mentioned thrust ring 70 can be supported by the working gas between multiple paillon foils of the first foil air bearing 72 and thrust ring 70 one side 70A or air layer.First foil air bearing 72 can be anchored on metallic plate 52 by being inserted in the accepting groove 58 of metallic plate 52.
Seal member 74 may be disposed at the metallic plate 52 of bearing outer housing 50.Seal member 74 can be made up of labyrinth sealing (LabyrinthSeal) part, and above-mentioned labyrinth is arranged at the opposing face 52B with the inside of outsides cover of electric machinery 10 face 52A in opposite directions in the two sides of metallic plate 52.When turbo-compressor 1 includes multiple compression unit C1, C2, seal member 74 can be respectively arranged at compression unit C, in above-mentioned multiple seal member 74 one can close between motor section M and the first compression unit C1, and another in multiple seal members 74 can carry out between motor section M and the second compression unit C2.Turbo-compressor 1 comprises the steps that the first seal member 74A, is arranged at clutch shaft bearing outer housing 50A；And the second seal member 74B, it is arranged at the second bearing outer housing 50B.
Second foil air bearing 76 axially can separate with the first foil bearing 72.Second foil air bearing 76 and the first foil air bearing 72 can be spaced from each other across thrust ring 130 in centre.
Second foil air bearing 76 can include the multiple paillon foils being arranged at the thin sheet form of seal member 74.When turbo-compressor 1 includes two compression unit C1, C2, the second foil air bearing 86 can be located between the another side of thrust ring 130 and the second seal member 74B.Second foil air bearing 86 may be disposed at the second seal member 74B.The accepting groove 75 for installing multiple paillon foil in the way of collecting can be formed at the seal member 74B arranging the second foil air bearing 76.When thrust ring 70 rotates, above-mentioned thrust ring can be supported by the working gas between multiple paillon foils of the second foil air bearing 76 and the another side 70B of thrust ring 70 or air layer.
Rotor 30, axle 40, thrust ring 70 can be the rotary assembled body rotated when driving turbo-compressor 1.
When at least one bearing exception in first foil air bearing the 72, second foil air bearing 76, rotary assembled body in the process of high speed rotating with the thin plate friction of foil air bearing contacting, now, it may occur that the vibration on circumferencial direction.Above-mentioned vibration can be transmitted to bearing outer housing 50, and can measure above-mentioned vibration by acceleration transducer 78.When turbo-compressor 1 includes two compression unit C1, C2, the vibration on circumferencial direction can be transmitted to the second bearing outer housing 50B, and above-mentioned vibration may be placed at the acceleration transducer 78 of the second bearing outer housing 50B and measures.
Acceleration transducer 78 may be disposed at the outside of the radial direction of the thrust ring 70 in the periphery 53 of bearing outer housing 50.When turbo-compressor 1 includes two compression unit C1, C2, acceleration transducer 78 can be not provided with in clutch shaft bearing outer housing 50A, and is arranged at the second bearing outer housing 50B.
Acceleration transducer 78 is installed on bearing outer housing 50, thus, when bearing outer housing 50 vibrates, above-mentioned acceleration transducer 78 can measure acceleration or the impact strength of bearing outer housing 50, and above-mentioned acceleration transducer 78 can use the multiple sensors of inertia-type, gyro ceremony, silica gel semiconductor-type etc..Acceleration transducer 78 can expose to the outside of turbo-compressor 1, it is easy to arranges or be easy to provide the related service of above-mentioned acceleration transducer 78.
Acceleration transducer 78 may be disposed at the position intersected of the extended line P1 extended from thrust ring 70 to radial direction in the periphery 53 of bearing outer housing 50.When turbo-compressor 1 includes two compression unit C1, C2, acceleration transducer 78 may be disposed at the position intersected of the extended line P1 extended from thrust ring 70 to radial direction in the periphery 53 of the second bearing outer housing 50.
Acceleration transducer 78 may be disposed at the position intersected of the extended line P2 extended from accepting groove 58 in the periphery 53 of bearing outer housing 50 to the radial direction of bearing outer housing 50.When turbo-compressor 1 includes two compression unit C1, C2, acceleration transducer 78 may be disposed at the position intersected of the extended line P2 extended from accepting groove 58 in the periphery 53 of the second bearing outer housing 50 to the radial direction of bearing outer housing 50.
The extension line P1 extended from thrust ring 70 to radial direction can be consistent with the extended line P2 extended to the radial direction of bearing outer housing 50 from accepting groove 58, it is possible to is parallel to each other across relatively closely spaced.
The extended line P1 extended from thrust ring 70 to radial direction and the extended line P2 extended to the radial direction of bearing outer housing 50 from accepting groove 58 all can be located at the metallic plate 52 of bearing outer housing 50.
Acceleration transducer 78 may be disposed at the periphery of metallic plate 52.When turbo-compressor 1 includes two compression unit C1, C2, acceleration transducer 78 may be disposed at the periphery 53 of the metallic plate 52 of the second bearing outer housing 50.The periphery 53 of metallic plate 52 can be the face being perpendicular to thrust ring 70, and the acceleration transducer 78 being arranged at the periphery 53 of metallic plate 52 can detect the vibration abnormal based on foil air bearing.
Hereinafter, illustrate that the effect of the present invention constituted in the manner is as follows.
First, can starting turbine compressor 1, when starting turbine compressor 1, the rotary assembled body that is made up of rotor 30, axle 40 and thrust ring 70 can be made to rotate by drive motor portion M.
The rotary speed of rotary assembled body can be gradually increased, when rotary assembled body high speed rotating, thrust ring 70 can separate from multiple thin plates of the first foil air bearing 72 by the working fluid between thrust ring 70 and the first foil air bearing 72 or air layer, and separates from multiple thin plates of the second foil air bearing 76 by the working fluid between thrust ring 70 and the second foil air bearing 76 or air layer.
Under the first foil air bearing 72 and the second normal situation of foil air bearing 76, when thrust ring 70 separates with the first foil air bearing 72 and the second foil air bearing 76, above-mentioned thrust ring 70 can high speed rotating, now, the vibration of bearing outer housing 50 can be at normal range.
On the other hand, when at least one exception in the first foil air bearing 72 and the second foil air bearing 76, at least one in thrust ring 70 and the first foil air bearing 72 and the second foil air bearing 76 is to circumferencial direction friction, now, the vibration of normal range more than can be transmitted to bearing outer housing 50.
If starting turbine compressor 1, then acceleration transducer 78 can periodically detect the vibration values of bearing outer housing 50 and exports to control portion 5.
After starting turbine compressor 1, through setting the rotary speed of time or axle 40 as time more than setting speed, control portion 5 judges whether the detected value detected by acceleration transducer 78 is in abnormal ranges.
If being in abnormal ranges in the vibration values detected by acceleration transducer 78, then control portion 5 can stop turbo-compressor 1, or can be informed the exception of turbo-compressor 1 by alert mechanism 6.
On the other hand, the invention is not limited in above-described embodiment, in technical scope belonging to the present invention, the present invention can be carried out various deformation.
Claims (15)
1. a turbo-compressor, it is characterised in that including:
Outsides cover of electric machinery；
Stator, is configured at the inside of above-mentioned outsides cover of electric machinery；
Rotor, is configured at the inner side of said stator in rotary manner；
Axle, is provided with above-mentioned rotor；
Clutch shaft bearing outer housing, combines with the side of above-mentioned outsides cover of electric machinery；
First seal member, is arranged at above-mentioned clutch shaft bearing outer housing；
First compression unit, is arranged at above-mentioned clutch shaft bearing outer housing；
First impeller, is arranged at above-mentioned axle in the way of being positioned at above-mentioned first compression unit inside；
Second bearing outer housing, combines with the opposite side of above-mentioned outsides cover of electric machinery；
Second seal member, is arranged at above-mentioned second bearing outer housing；
Second compression unit, is arranged at above-mentioned second bearing outer housing；
Second impeller, is arranged at above-mentioned axle in the way of being positioned at above-mentioned second compression unit inside；
Connecting tube, is used for connecting above-mentioned first compression unit and the second compression unit；
Thrust ring, is arranged at above-mentioned axle；
First foil air bearing, between the one side and above-mentioned second bearing outer housing of above-mentioned thrust ring；
Second foil air bearing, between the another side and above-mentioned second seal member of above-mentioned thrust ring；And
Acceleration transducer, is arranged at the periphery of above-mentioned second bearing outer housing.
2. turbo-compressor according to claim 1, it is characterised in that the outside of the radial direction of the above-mentioned thrust ring that above-mentioned acceleration transducer is arranged in the periphery of above-mentioned second bearing outer housing.
3. turbo-compressor according to claim 1, it is characterised in that the position of the extended line intersection extended from above-mentioned thrust hoop radial direction that above-mentioned acceleration transducer is arranged in the periphery of above-mentioned second bearing outer housing.
4. a turbo-compressor, it is characterised in that including:
Outsides cover of electric machinery；
Stator, is configured at the inside of above-mentioned outsides cover of electric machinery；
Rotor, is configured at the inner side of said stator in rotary manner；
Axle, is provided with above-mentioned rotor；
Impeller, is arranged at above-mentioned axle；
Bearing outer housing, combines with above-mentioned outsides cover of electric machinery；
Thrust ring, is arranged at above-mentioned axle；
First foil air bearing, between the one side and above-mentioned bearing outer housing of above-mentioned thrust ring；
Seal member, is arranged at above-mentioned bearing outer housing；
Second foil air bearing, between the another side and above-mentioned seal member of above-mentioned thrust ring；And
Acceleration transducer, is arranged at the periphery of above-mentioned bearing outer housing.
5. turbo-compressor according to claim 4, it is characterised in that the outside of the radial direction of the above-mentioned thrust ring that above-mentioned acceleration transducer is arranged in the periphery of above-mentioned bearing outer housing.
6. turbo-compressor according to claim 4, it is characterised in that the position of the extended line intersection extended from above-mentioned thrust hoop radial direction that above-mentioned acceleration transducer is arranged in the periphery of above-mentioned bearing outer housing.
7. turbo-compressor according to claim 4, it is characterised in that
One side at above-mentioned bearing outer housing forms the accepting groove housing above-mentioned thrust ring in the way of can making the rotation of above-mentioned thrust ring,
The position that the extended line extended to the radial direction of above-mentioned bearing outer housing from above-mentioned accepting groove that above-mentioned acceleration transducer is arranged in the periphery of above-mentioned bearing outer housing intersects.
8. turbo-compressor according to claim 4, it is characterised in that
Above-mentioned bearing outer housing includes metallic plate and cylindrical portion, and above-mentioned metallic plate combines with above-mentioned outsides cover of electric machinery, and above-mentioned cylindrical portion is configured at above-mentioned metallic plate in a projecting manner, and above-mentioned cylindrical portion is used for surrounding a part for above-mentioned axle,
It is arranged to support the 3rd foil air bearing of above-mentioned axle in above-mentioned cylindrical portion,
Above-mentioned acceleration transducer is arranged at the periphery of above-mentioned metallic plate.
9. a refrigeration machine with turbo-compressor, it is characterised in that
Including:
Turbo-compressor, is used for compressing cold-producing medium；
Condenser, for making the cold-producing medium compressed in above-mentioned turbo-compressor be condensed；
Expansion mechanism, for making the cold-producing medium being condensed at above-mentioned condenser expand；
Vaporizer, for making the cold-producing medium evaporation expanded at above-mentioned expansion mechanism；And
Control portion, is used for controlling above-mentioned turbo-compressor,
Above-mentioned turbo-compressor includes:
Outsides cover of electric machinery；
Stator, is configured at the inside of above-mentioned outsides cover of electric machinery；
Rotor, is configured at the inner side of said stator in rotary manner；
Axle, is provided with above-mentioned rotor；
Impeller, is arranged at above-mentioned axle；
Bearing outer housing, combines with above-mentioned outsides cover of electric machinery；
Thrust ring, is arranged at above-mentioned axle；
First foil air bearing, between the one side and above-mentioned bearing outer housing of above-mentioned thrust ring；
Seal member, is arranged at above-mentioned bearing outer housing；
Second foil air bearing, between the another side and above-mentioned seal member of above-mentioned thrust ring；And
Acceleration transducer, is arranged at the periphery of above-mentioned bearing outer housing.
10. the refrigeration machine with turbo-compressor according to claim 9, it is characterised in that the outside of the radial direction of the above-mentioned thrust ring that above-mentioned acceleration transducer is arranged in the periphery of above-mentioned bearing outer housing.
11. the refrigeration machine with turbo-compressor according to claim 9, it is characterised in that the position of the extended line intersection extended from above-mentioned thrust hoop radial direction that above-mentioned acceleration transducer is arranged in the periphery of above-mentioned bearing outer housing.
12. the refrigeration machine with turbo-compressor according to claim 9, it is characterised in that
One side at above-mentioned bearing outer housing forms the accepting groove housing above-mentioned thrust ring in the way of can making the rotation of above-mentioned thrust ring,
The position that the extended line extended to the radial direction of above-mentioned bearing outer housing from above-mentioned accepting groove that above-mentioned acceleration transducer is arranged in the periphery of above-mentioned bearing outer housing intersects.
13. the refrigeration machine with turbo-compressor according to claim 9, it is characterised in that
Above-mentioned bearing outer housing includes metallic plate and cylindrical portion, and above-mentioned metallic plate combines with above-mentioned outsides cover of electric machinery, and above-mentioned cylindrical portion is configured at above-mentioned metallic plate in a projecting manner, and above-mentioned cylindrical portion is used for surrounding a part for above-mentioned axle,
It is arranged to support the 3rd foil air bearing of above-mentioned axle in above-mentioned cylindrical portion,
Above-mentioned acceleration transducer is arranged at the periphery of above-mentioned metallic plate.
14. the refrigeration machine with turbo-compressor according to claim 9, it is characterised in that if the detected value of above-mentioned acceleration transducer is in the abnormal ranges bigger than normal range, then above-mentioned control portion makes above-mentioned compressor stop.
15. the refrigeration machine with turbo-compressor according to claim 9, it is characterised in that if the detected value of above-mentioned acceleration transducer is in the abnormal ranges bigger than normal range, then the exception of above-mentioned compressor is informed in above-mentioned control portion by alert mechanism.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| KR10-2015-0006446 | 2015-01-13 | ||
| KR1020150006446A KR102268282B1 (en) | 2015-01-13 | 2015-01-13 | Turbo compressor and Refrigerating device having the same |
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| CN105782075A true CN105782075A (en) | 2016-07-20 |
| CN105782075B CN105782075B (en) | 2019-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610019532.9A Active CN105782075B (en) | 2015-01-13 | 2016-01-13 | Turbo-compressor and refrigeration machine |
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| CN (1) | CN105782075B (en) |
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| CN109281846A (en) * | 2017-07-19 | 2019-01-29 | Lg电子株式会社 | Compressor and cooling system including it |
| CN109838940A (en) * | 2017-11-27 | 2019-06-04 | 北京航空航天大学 | A kind of closed heat pump/refrigeration system from cooling self-lubricating |
| CN111720351A (en) * | 2019-03-19 | 2020-09-29 | 青岛海尔智能技术研发有限公司 | Compressor control method and device and compressor |
| CN111954762A (en) * | 2018-04-13 | 2020-11-17 | 泰克托尼克有限责任公司 | Method for controlling at least one radial fan in a refrigeration system and radial fan |
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| KR102551115B1 (en) * | 2018-08-08 | 2023-07-05 | 엘지전자 주식회사 | Centrifugal Compressor |
| KR102131637B1 (en) * | 2018-10-18 | 2020-08-05 | 엘지전자 주식회사 | A turbo compressor and a turbo chiller including the same |
| WO2020231910A1 (en) * | 2019-05-10 | 2020-11-19 | Carrier Corporation | Compressor with vibration sensor |
| KR102292393B1 (en) * | 2020-02-17 | 2021-08-23 | 엘지전자 주식회사 | Compressor and Chiller system having the same |
| KR102571417B1 (en) * | 2021-06-09 | 2023-08-29 | 엘지전자 주식회사 | Turbo compressor |
| KR102513211B1 (en) * | 2022-11-02 | 2023-03-23 | (주)월드이엔씨 | Malfunction preventing compressor and refrigerator including the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102268282B1 (en) | 2021-06-22 |
| KR20160087299A (en) | 2016-07-21 |
| CN105782075B (en) | 2019-05-28 |
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