EP0653566A1 - Compresseur et transmission pour le compression d'oxygène - Google Patents

Compresseur et transmission pour le compression d'oxygène Download PDF

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Publication number
EP0653566A1
EP0653566A1 EP94112720A EP94112720A EP0653566A1 EP 0653566 A1 EP0653566 A1 EP 0653566A1 EP 94112720 A EP94112720 A EP 94112720A EP 94112720 A EP94112720 A EP 94112720A EP 0653566 A1 EP0653566 A1 EP 0653566A1
Authority
EP
European Patent Office
Prior art keywords
compressor
bearing
gear
oxygen
bearings
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP94112720A
Other languages
German (de)
English (en)
Other versions
EP0653566B1 (fr
Inventor
Heinrich Dr. Prümper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Everllence SE
Original Assignee
Deutsche Babcock Borsig AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Babcock Borsig AG filed Critical Deutsche Babcock Borsig AG
Publication of EP0653566A1 publication Critical patent/EP0653566A1/fr
Application granted granted Critical
Publication of EP0653566B1 publication Critical patent/EP0653566B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement

Definitions

  • the invention relates to a gear compressor for the compression of oxygen according to the preamble of claim 1.
  • oxygen has mainly been compressed using so-called classic, multi-stage single-shaft compressors and, depending on the final pressure, multi-housing compressors of this type.
  • Oxygen can also be compressed by geared compressors if the following design features are observed.
  • the lubricating oil for the bearings and the pumped medium oxygen must be carefully separated from one another due to the risk of explosion. Therefore, in such compressors, the sealing systems (labyrinths) between the bearings and the impellers are greatly extended and designed as multi-chamber systems. As a result, however, the overhang between the center of gravity of the impeller and the center of the bearing becomes disproportionately large, which inevitably leads to unfavorable rotor dynamic properties.
  • the object of the invention is to keep the compressed oxygen and the lubricating oil separate from one another in the compression of oxygen in a gearbox compressor and at the same time to achieve favorable rotor-dynamic properties for the gearbox compressor.
  • a space is created between the gear housing carrying the lubricating oil and the oxygen-promoting compressor stages which is open to the ambient air.
  • This space allows oxygen and lubricating oil to be separated from one another. Oxygen possibly escaping from the shaft seal of the compressor stages is diluted and expanded in the ambient air to such an extent that an explosion can no longer occur in connection with any escaping lubricating oil.
  • the bearing of the rotor shafts in bearings in the support structure allows a very short overhang of the center of gravity of the impeller with a thickened rotor shaft. This improves the rotor dynamic stability and avoids the occurrence of possible larger vibration amplitudes, which can lead to the rotating parts being rubbed against in the oxygen-filled space.
  • the geared compressor shown serves to compress oxygen and contains four compressor stages, one of which is shown in Fig. 1, the first and third compressor stages 1, 3 are shown on the left, while the second and fourth compressor stages 2, 4 are only indicated by stub shafts.
  • Compressor stages 1 to 4 are driven by an integrated oil-lubricated gear.
  • the transmission contains a central drive gear 6 within a transmission housing 5, with which pinions 7 are engaged.
  • Each pinion 7 is seated on a rotor shaft 8, the end of which faces away from the pinion 7 carries an impeller 9 of a compressor stage 1 to 4.
  • Each rotor shaft 8 is mounted on the side facing away from the impeller 9 in the gear housing 5 in an oil-lubricated bearing 10 designed as a tilting segment bearing.
  • the passage of the rotor shaft 8 through the gear housing 5 is sealed against the free atmosphere on one side by an end cap 11 and on the other side by a shaft seal 12 loaded with sealing air.
  • a free-standing holding structure designed as a plate 13 is arranged on two opposite sides at a distance from the gear housing 5.
  • the plates 13 are connected to the gear housing 5 via spacers 14 and stand together with the gear housing 5 on a foundation (not shown). An intermediate space through which ambient air flows is thus formed between the plates 13.
  • Each compressor stage 1 to 4 contains an impeller 9 which rotates in a compressor housing 15.
  • the compressor housing 15 is provided with an inlet part 16 and closed on the rear side by a rear wall 17.
  • the rear wall 17 of the compressor housing 15 is fastened to the plate 13, so that the plates 13 carry the compressor stages 1 to 4.
  • each compressor stage 1 to 4 passes through the plate 13 and is supported here in an additional bearing 18.
  • a bearing a hydraulic tilting segment bearing can be used, which, for example, with a lubricant compatible with oxygen.
  • B. water is lubricated.
  • the additional bearing 18 can also be designed as a magnetic bearing.
  • Such magnetic bearings are known. They guide the shaft by means of controlled magnetic fields. The rotor shaft 8 is guided precisely and self-balancing by these magnetic bearings.
  • auxiliary bearing is arranged in the inlet part 16 of the compressor housing 15.
  • the auxiliary bearing consists of a conical catch bearing 19, which contains a conical bearing ring 20, is supported on rollers 21 and surrounds a conical section of the hub 22 of the impeller 9.
  • the conical bearing ring 20 of the backup bearing 19 is held by means of an electromagnet 23 against the force of a spring 24 at a distance from the item 22.
  • the electromagnet 23 becomes ineffective and the spring 24 presses the conical bearing ring 20 against the handle 22, as a result of which the impeller 9 is guided without play and can run out safely.
  • the rotor shaft 8 is sealed from the outside atmosphere within the rear wall 17 of the compressor housing 15 by a short shaft seal 25, which is designed as a ceramic, dry, gas-lubricated floating ring seal.
  • the leakage oxygen can be directed into an exhaust system together with sealing air. It could also easily escape into the machine shop. Compared to oil-lubricated bearings, this design principle allows rotors with larger diameters to be sealed.
  • the described storage of the rotor shaft 8 in the additional bearing 18 in the plate 13 and in the oil-lubricated bearing 10 in the gear housing 5 with the arrangement of only one impeller 9 per rotor shaft 8 results in favorable lever ratios in the oil-lubricated bearing 10.
  • the Rotor shaft 8, as shown in Fig. 3 can also be mounted in a further oil-lubricated bearing 26, which on the other side of the pinion 7 is arranged in the gear housing 5.
  • the additional bearing 18 has the function of a guide and damping bearing in particular when using a magnetic bearing.
  • each rotor shaft 8 driven by a pinion 7 carries two impellers 9. Behind each of the L-impellers 9 arranged in this way there is an additional bearing designed as a magnetic bearing, which acts as a guide and damping bearing.
  • the rotor shaft 8 By mounting the rotor shaft 8 very close to the impeller 9, there is a very small overhang of the center of gravity of the impeller 9. At the same time, the diameter of the rotor shaft 8 is increased, which is favored by the use of a ceramic, dry, gas-lubricated floating ring seal as the shaft seal 25.
  • the small overhang of the center of gravity of the impeller and the enlarged diameter of the rotor shaft 8 reduce the susceptibility to vibration of the impeller 9, so that larger vibration amplitudes are avoided and smooth running is achieved.
  • the large space containing ambient air between the gear housing 5 carrying lubricating oil and the oxygen-promoting compressor stages 1 to 4 ensures a clean separation of lubricating oil and oxygen.
  • the invention can therefore also be used for the compression of gases other than oxygen if an absolute oil-free nature of the compressed gas is required in the range of a few ppm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
EP94112720A 1993-11-16 1994-08-16 Compresseur et transmission pour le compression d'oxygène Expired - Lifetime EP0653566B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4339060A DE4339060A1 (de) 1993-11-16 1993-11-16 Getriebeverdichter für die Verdichtung von Sauerstoff
DE4339060 1993-11-16

Publications (2)

Publication Number Publication Date
EP0653566A1 true EP0653566A1 (fr) 1995-05-17
EP0653566B1 EP0653566B1 (fr) 1998-12-23

Family

ID=6502689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94112720A Expired - Lifetime EP0653566B1 (fr) 1993-11-16 1994-08-16 Compresseur et transmission pour le compression d'oxygène

Country Status (9)

Country Link
US (1) US5503523A (fr)
EP (1) EP0653566B1 (fr)
JP (1) JPH08226399A (fr)
CZ (1) CZ286941B6 (fr)
DE (2) DE4339060A1 (fr)
PL (1) PL174005B1 (fr)
RU (1) RU2082022C1 (fr)
SK (1) SK280754B6 (fr)
UA (1) UA37208C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997023731A1 (fr) * 1995-12-21 1997-07-03 Comoti-National Research & Design Institute For Turboengines Compresseur centrifuge a boite d'engrenage incorpore
WO2011141439A1 (fr) * 2010-05-11 2011-11-17 Siemens Aktiengesellschaft Compresseur à engrenage multiétagé
CN110966238A (zh) * 2019-12-19 2020-04-07 上海菲恒生活用品有限公司 一种可语音控制的风扇
EP3705725A1 (fr) * 2019-03-05 2020-09-09 Siemens Aktiengesellschaft Agencement pourvu de composants de l'engrenage

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6273429B1 (en) 1998-07-09 2001-08-14 Atlas Copco Aktiebolag Labyrinth cartridge seal, and centrifugal compressor applications thereof
US6174167B1 (en) 1998-12-01 2001-01-16 Woehrle Peter S. Bioroot endosseous implant
RU2166187C2 (ru) * 1999-07-14 2001-04-27 Федеральное государственное унитарное предприятие "Исследовательский Центр им. М.В. Келдыша" Установка для испытаний образцов материалов и элементов конструкций в среде жидкого или газообразного кислорода с моделированием натурных условий эксплуатации
US6393865B1 (en) * 2000-09-27 2002-05-28 Air Products And Chemicals, Inc. Combined service main air/product compressor
AU2003202961C1 (en) 2002-01-11 2009-03-26 Nobel Biocare Services Ag Dental implant system
USD507052S1 (en) 2003-04-01 2005-07-05 Peter S. Wohrle Dental implant
US7708559B2 (en) 2003-05-16 2010-05-04 Nobel Biocare Services Ag Dental implant system
USD511833S1 (en) 2003-10-01 2005-11-22 Woehrle Peter S Dental implant
DE102015204466A1 (de) 2015-03-12 2016-09-15 Siemens Aktiengesellschaft Anordnung mit zwei Verdichtern, Verfahren zum Nachrüsten
CN105257591B (zh) * 2015-11-09 2017-11-28 江苏杰尔科技股份有限公司 一种单级高速离心风机的叶轮安装结构
RU174575U1 (ru) * 2016-11-15 2017-10-20 Публичное акционерное общество "Сумское машиностроительное научно-производственное объединение" Мультипликаторный центробежный компрессор

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909853C (de) * 1948-10-02 1954-04-26 Arthur Naumann Mehrstufiger Kreiselverdichter
US3355096A (en) * 1966-02-15 1967-11-28 Ingersoll Rand Co Multi-stage intercooled compressor
US3387769A (en) * 1966-10-03 1968-06-11 Worthington Corp Multistage turbomachine
US3476485A (en) * 1967-09-18 1969-11-04 Dresser Ind Multistage centrifugal compressor
CH486647A (de) * 1966-04-23 1970-02-28 Hoechst Ag Verbundsystem aus harten Platten mit schwingungsdämpfender Zwischenschicht
DE2256681A1 (de) * 1972-11-18 1974-06-06 Demag Ag Turboverdichter
EP0440902A1 (fr) * 1990-02-06 1991-08-14 Deutsche Babcock- Borsig Aktiengesellschaft Transmission et compresseur centrifuge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625883A (en) * 1951-01-25 1953-01-20 Julia M Howser Centrifugal pump drive and seal means
US3077296A (en) * 1961-04-26 1963-02-12 Schwitzer Corp Turbocharger oil seal
GB993668A (en) * 1962-04-26 1965-06-02 Hayward Tyler & Company Ltd Improvements in or relating to electric motor and pump units
CH606801A5 (fr) * 1975-12-02 1978-11-15 Escher Wyss Ag
US4439096A (en) * 1982-08-13 1984-03-27 A. W. Chesterton Company Impeller adjuster for centrifugal pump
US5319273A (en) * 1992-10-26 1994-06-07 Satcon Technology Corporation Fixed gain electromagnetic actuator and electromagnetic bearing incorporating same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909853C (de) * 1948-10-02 1954-04-26 Arthur Naumann Mehrstufiger Kreiselverdichter
US3355096A (en) * 1966-02-15 1967-11-28 Ingersoll Rand Co Multi-stage intercooled compressor
CH486647A (de) * 1966-04-23 1970-02-28 Hoechst Ag Verbundsystem aus harten Platten mit schwingungsdämpfender Zwischenschicht
US3387769A (en) * 1966-10-03 1968-06-11 Worthington Corp Multistage turbomachine
US3476485A (en) * 1967-09-18 1969-11-04 Dresser Ind Multistage centrifugal compressor
DE2256681A1 (de) * 1972-11-18 1974-06-06 Demag Ag Turboverdichter
EP0440902A1 (fr) * 1990-02-06 1991-08-14 Deutsche Babcock- Borsig Aktiengesellschaft Transmission et compresseur centrifuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"The Centregal High-Pressure Centrifugal Compression.", COMPRESSED AIR MAGAZINE, vol. 83, no. 5, May 1978 (1978-05-01) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997023731A1 (fr) * 1995-12-21 1997-07-03 Comoti-National Research & Design Institute For Turboengines Compresseur centrifuge a boite d'engrenage incorpore
WO2011141439A1 (fr) * 2010-05-11 2011-11-17 Siemens Aktiengesellschaft Compresseur à engrenage multiétagé
US9512849B2 (en) 2010-05-11 2016-12-06 Siemens Aktiengesellschaft Multi-stage integrally geared compressor
EP3705725A1 (fr) * 2019-03-05 2020-09-09 Siemens Aktiengesellschaft Agencement pourvu de composants de l'engrenage
CN110966238A (zh) * 2019-12-19 2020-04-07 上海菲恒生活用品有限公司 一种可语音控制的风扇
CN110966238B (zh) * 2019-12-19 2020-07-28 萧县亿达信息科技有限公司 一种可语音控制的风扇

Also Published As

Publication number Publication date
CZ286941B6 (en) 2000-08-16
RU94041733A (ru) 1996-11-10
RU2082022C1 (ru) 1997-06-20
UA37208C2 (uk) 2001-05-15
PL305839A1 (en) 1995-05-29
EP0653566B1 (fr) 1998-12-23
DE4339060A1 (de) 1995-05-18
DE59407534D1 (de) 1999-02-04
SK280754B6 (sk) 2000-07-11
JPH08226399A (ja) 1996-09-03
SK93794A3 (en) 1995-06-07
US5503523A (en) 1996-04-02
CZ193394A3 (en) 1995-05-17
PL174005B1 (pl) 1998-05-29

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