JP2019525058A - 遠心圧縮機及び遠心圧縮機用の磁気軸受バックアップシステム - Google Patents
遠心圧縮機及び遠心圧縮機用の磁気軸受バックアップシステム Download PDFInfo
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- 239000006227 byproduct Substances 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
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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
- 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
- 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
- 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
- F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
-
- 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
- F04D27/02—Surge control
- F04D27/0292—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
- F04D29/056—Bearings
- F04D29/058—Bearings magnetic; electromagnetic
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0402—Bearings not otherwise provided for using magnetic or electric supporting means combined with other supporting means, e.g. hybrid bearings with both magnetic and fluid supporting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0442—Active magnetic bearings with devices affected by abnormal, undesired or non-standard conditions such as shock-load, power outage, start-up or touchdown
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0444—Details of devices to control the actuation of the electromagnets
- F16C32/0446—Determination of the actual position of the moving member, e.g. details of sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
-
- 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
- F25B31/00—Compressor arrangements
- F25B31/02—Compressor arrangements of motor-compressor units
- F25B31/026—Compressor arrangements of motor-compressor units with compressor of rotary type
-
- 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
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/50—Bearings
- F05B2240/51—Bearings magnetic
- F05B2240/515—Bearings magnetic electromagnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/50—Bearings
- F05B2240/53—Hydrodynamic or hydrostatic bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2210/00—Fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/44—Centrifugal pumps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
<用語の一般的解釈>
Claims (19)
- 冷媒を圧縮するために使用され、蒸発器、凝縮器、及び膨張機構を含むチラーシステムに使用されるように適合されている遠心圧縮機であって、
入口部分及び出口部分を有するケーシングと、
回転軸を中心に回転可能なシャフトに取り付けられたインペラと、
前記インペラを回転させるために前記シャフトを回転させるように構成され配置されているモータと、
前記インペラの下流で前記出口部分に配置されているディフューザと、
前記シャフトを回転自在に支持する磁気軸受と、
前記磁気軸受が動作を停止したときに前記シャフトを支持するように構成され配置されている磁気軸受バックアップシステムであって、
少なくとも1つの動的気体軸受と、
少なくとも1つの静圧気体軸受と、
を含み、前記少なくとも1つの動的気体軸受及び前記少なくとも1つの静圧気体軸受は、前記磁気軸受に対して径方向内側に配置されている、磁気軸受バックアップシステムと、
を備える遠心圧縮機。 - 前記少なくとも1つの動的気体軸受及び前記少なくとも1つの静圧気体軸受は、それぞれ、前記圧縮機の前記シャフトの軸方向の両端に隣接して配置される、
請求項1に記載の遠心圧縮機。 - 前記少なくとも1つの動的気体軸受は、前記シャフトを取り囲む軸受ステータを有し、
前記シャフトには、前記シャフトの外周面に形成されている溝が設けられている、
請求項1に記載の遠心圧縮機。 - 前記少なくとも1つの動的気体軸受は、前記圧縮機の前記シャフトの回転により発生する冷媒ガスの流れにより前記シャフトを支持し、
前記冷媒ガスの流れは、前記シャフトの前記溝により案内される、
請求項3に記載の遠心圧縮機。 - 前記シャフトの前記溝は、前記シャフトの外周方向に沿って互いに略等間隔に設けられている、
請求項3又は4に記載の遠心圧縮機。 - 前記少なくとも1つの静圧気体軸受は、
前記シャフトを囲む、オリフィスが設けられている軸受ステータであって、前記軸受ステータと前記シャフトとの間に前記オリフィスを介して冷媒ガスを供給する軸受ステータと、
前記軸受ステータの前記オリフィスに接続されて冷媒ガスを導入する入口導管と、
を含む、
請求項1に記載の遠心圧縮機。 - 前記少なくとも1つの静圧気体軸受は、前記チラーシステム内の前記圧縮機と前記凝縮器との間の領域から前記入口導管を介して導入される冷媒ガスにより、前記シャフトを支持する、
請求項6に記載の遠心圧縮機。 - 前記チラーシステム内の前記膨張機構は、電磁弁及びモータ作動弁のうちの少なくとも1つを含み、前記膨張機構は、前記磁気軸受と共有される電力源によって電力供給され、
前記電力源から電力供給が停止すると、前記磁気軸受が停止した後も前記少なくとも1つの静圧気体軸受が前記冷媒ガスによって前記シャフトを支持し続けるように、前記膨張機構が開放されて前記冷媒ガスが前記少なくとも1つの静圧気体軸受に向かって流れることを可能とする、
請求項7に記載の遠心圧縮機。 - 前記シャフトの回転速度が速く、前記圧縮機の吸入側と吐出側との圧力差が大きい場合には、前記少なくとも1つの動的気体軸受と前記少なくとも1つの静圧気体軸受との両方が前記シャフトを支持する、
請求項1に記載の遠心圧縮機。 - 前記シャフトの回転速度が速く、前記圧縮機の吸入側と吐出側との圧力差が小さい場合には、主に前記少なくとも1つの動的気体軸受が前記シャフトを支持する、
請求項1に記載の遠心圧縮機。 - 前記シャフトの回転速度が遅く、前記圧縮機の吸入側と吐出側との圧力差が大きい場合には、主に前記静圧気体軸受が前記シャフトを支持する、
請求項1に記載の遠心圧縮機。 - 前記冷媒は、地球温暖化係数(GWP)が低い冷媒である、
請求項1に記載の遠心圧縮機。 - 冷媒を圧縮するために使用され、かつチラーシステムに使用されるように適合された遠心圧縮機で用いる磁気軸受バックアップシステムであって、
動的気体軸受と静圧気体軸受とから選択される少なくとも1つの気体軸受であって、磁気軸受が動作を停止したときに前記遠心圧縮機のシャフトを支持するように構成され配置されている少なくとも1つの気体軸受を備え、
前記少なくとも1つの気体軸受は、前記遠心圧縮機の磁気軸受に対して径方向内側に配置されている、
磁気軸受バックアップシステム。 - 前記少なくとも1つの気体軸受は、冷媒ガスを潤滑剤として使用して前記シャフトを支持する、
請求項13に記載の磁気軸受バックアップシステム。 - 冷媒を圧縮するために使用され、かつチラーシステムに使用されるように適合された遠心圧縮機で用いる磁気軸受バックアップシステムであって、
少なくとも1つの動的気体軸受と、
少なくとも1つの静圧気体軸受と、
を備え、
前記少なくとも1つの動的気体軸受及び前記少なくとも1つの静圧気体軸受は、磁気軸受が動作を停止したときに前記遠心圧縮機のシャフトを支持するように構成及び配置されており、
前記少なくとも1つの動的気体軸受及び前記少なくとも1つの静圧気体軸受は、前記遠心圧縮機の磁気軸受に対して径方向内側に配置されている、
磁気軸受バックアップシステム。 - 前記少なくとも1つの動的気体軸受及び前記少なくとも1つの静圧気体軸受は、冷媒ガスを潤滑剤として使用することにより前記シャフトを支持する、
請求項15に記載の磁気軸受バックアップシステム。 - 前記少なくとも1つの動的気体軸受は、前記シャフトを取り囲む軸受ステータを有し、
前記軸受ステータと、前記シャフトの外周面に形成されている溝を有する前記シャフトとの間に、前記冷媒ガスの流れが発生する、
請求項15に記載の磁気軸受バックアップシステム。 - 前記少なくとも1つの静圧気体軸受は、
前記シャフトを囲む、オリフィスが設けられている軸受ステータであって、前記軸受ステータと前記シャフトとの間に前記オリフィスを介して冷媒ガスを供給する軸受ステータと、
前記軸受ステータの前記オリフィスに接続されて冷媒ガスを導入する入口導管と、を含む、
請求項15に記載の磁気軸受バックアップシステム。 - 前記冷媒は、地球温暖化係数(GWP)が低い冷媒である、
請求項13又は15に記載の磁気軸受バックアップシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/218,432 US10634154B2 (en) | 2016-07-25 | 2016-07-25 | Centrifugal compressor and magnetic bearing backup system for centrifugal compressor |
US15/218,432 | 2016-07-25 | ||
PCT/US2017/042349 WO2018022343A1 (en) | 2016-07-25 | 2017-07-17 | Centrifugal compressor and magnetic bearing backup system for centrifugal compressor |
Publications (2)
Publication Number | Publication Date |
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JP2019525058A true JP2019525058A (ja) | 2019-09-05 |
JP6806878B2 JP6806878B2 (ja) | 2021-01-06 |
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JP2019503967A Active JP6806878B2 (ja) | 2016-07-25 | 2017-07-17 | 遠心圧縮機及び遠心圧縮機用の磁気軸受バックアップシステム |
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WO2023087730A1 (zh) * | 2021-11-19 | 2023-05-25 | 青岛海尔空调电子有限公司 | 压缩机及制冷系统 |
US11852150B2 (en) * | 2021-12-30 | 2023-12-26 | Trane International Inc. | Gas bearing management for a compressor |
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US10634154B2 (en) | 2020-04-28 |
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CN109477487B (zh) | 2021-03-23 |
JP6806878B2 (ja) | 2021-01-06 |
CN109477487A (zh) | 2019-03-15 |
US20180023584A1 (en) | 2018-01-25 |
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