EP0499504A1 - Turbomaschine - vom Typ Kompressor oder Turbine - zur Verdichtung oder Entspannung eines gefährlichen Gases - Google Patents

Turbomaschine - vom Typ Kompressor oder Turbine - zur Verdichtung oder Entspannung eines gefährlichen Gases Download PDF

Info

Publication number
EP0499504A1
EP0499504A1 EP92400245A EP92400245A EP0499504A1 EP 0499504 A1 EP0499504 A1 EP 0499504A1 EP 92400245 A EP92400245 A EP 92400245A EP 92400245 A EP92400245 A EP 92400245A EP 0499504 A1 EP0499504 A1 EP 0499504A1
Authority
EP
European Patent Office
Prior art keywords
shaft
stator
liquid
gas
rotor
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
EP92400245A
Other languages
English (en)
French (fr)
Other versions
EP0499504B1 (de
Inventor
Paul Lefevre
Alain Verneau
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie SA
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 Bertin et Cie SA filed Critical Bertin et Cie SA
Publication of EP0499504A1 publication Critical patent/EP0499504A1/de
Application granted granted Critical
Publication of EP0499504B1 publication Critical patent/EP0499504B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
    • F04D29/124—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps with special means for adducting cooling or sealing fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • 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
    • F04D25/026—Units comprising pumps and their driving means with a magnetic coupling

Definitions

  • the invention relates to a rotary machine of the compressor or turbine type for compression or expansion of a dangerous gas, for example toxic or explosive.
  • Such machines are used in particular in the chemical industry, for the treatment of natural gas, etc.
  • a compressor or a turbine comprises a stator in which is formed an annular gas circulation chamber, a rotor mounted rotating in this chamber, a rotary shaft on which the rotor is fixed and which extends outside the stator through a shaft passage therefrom, and shaft guide and support bearings which are mounted in this stator shaft passage.
  • the rotor shaft is connected, outside the stator, to another shaft which is leading in the case of a compressor or driven in the case of a turbine.
  • the object of the invention is precisely to solve this problem in a simple, effective and inexpensive manner.
  • a rotary machine of the aforementioned type for the compression or the expansion of a dangerous gas, for example toxic or explosive characterized in that it comprises a bell mounted with sealing on the outside of the stator around said shaft passage and delimiting a closed enclosure filled with liquid, means for pressurizing the liquid in this enclosure at a pressure at least equal or slightly higher to the maximum gas in the annular chamber of the stator, liquid sealing means arranged in said shaft passage between the rotor shaft and the stator on the side of said annular gas circulation chamber, these means allowing a very low flow rate of liquid leaking towards the annular chamber of the stator, and means for connecting the rotor shaft to a second shaft outside the stator, these means comprising a rotary magnetic coupling, which may be with permanent magnets, some of which are carried by the rotor shaft inside said bell and the others of which are carried by the second shaft outside the bell.
  • a dangerous gas for example toxic or explosive
  • the invention therefore makes it possible to ensure the desired seal around the rotor shaft at the crossing of the stator, by countering the leaks of pressurized gas which could occur along this shaft, by a higher pressure of prevailing liquid. outside the stator in a sealed enclosure surrounding the shaft passage.
  • the low liquid leakage rate authorized between this shaft passage and the annular gas circulation chamber in the stator prevents rapid wear of the liquid sealing means provided in the shaft passage and guarantees their service life.
  • the magnetic coupling ensures torque transmission between the rotor shaft and the shaft outside the stator, without passing through the bell delimiting the sealed enclosure filled with liquid.
  • the annular chamber of the stator comprises means for recovering the aforementioned leakage flow rate of the liquid.
  • the liquid sealing means comprise a wet mechanical seal, of the type comprising an annular part with a hard surface, integral with the rotor shaft and applied by pressure to a complementary part integral with the stator. .
  • Such sealing means are relatively inexpensive and can be used with good efficiency up to rotational speeds of the order of 3000 to 3500 rpm.
  • the rotor consists of at least one compressor or peripheral turbine wheel.
  • Peripheral compressors and turbines are well known in the art for their high efficiency at medium speed, of the order of 3000 revolutions per minute.
  • the machine according to the invention is remarkably homogeneous, its essential components (the magnetic coupling, the wet mechanical seal and the compressor or peripheral impeller) having optimum operating speeds which are of the same order.
  • the means for pressurizing the liquid inside said bell comprise a pressure intensifier, one inlet of which is connected by a pressure tap to the annular chamber of the stator, and the outlet of which is connected to the enclosure delimited by said bell.
  • This pressure booster can be adjusted to a ratio slightly higher than 1 (for example 1.1), to guarantee that the pressure of the liquid in the bell will always be slightly higher than that of the gas in the annular chamber of the stator, despite possible variations in this gas pressure.
  • these means for pressurizing the liquid form part of a closed liquid circuit, comprising a circulation pump, a heat exchanger for cooling the liquid and liquid passages opening respectively inside said bell and in the stator shaft passage.
  • the stator comprises an intermediate chamber traversed by the rotor shaft and formed between the annular gas circulation chamber and the aforementioned shaft passage, this intermediate chamber being limited axially by linings dry seals, carried by the rotor shaft, means being provided for bringing a barrier gas under high pressure into this intermediate chamber between the dry seals, and a sweeping gas under low pressure in an annular space formed around the rotor shaft between this intermediate chamber and the aforementioned shaft passage.
  • the machine shown by way of example in FIG. 1 is a peripheral compressor, intended for the treatment of a flow of dangerous gases, for example toxic or explosive.
  • this compressor comprises a stator 10, in which an annular gas circulation chamber 12 is formed.
  • a rotor 14, consisting of a peripheral compressor wheel, comprises vanes 16 rotating in the annular chamber 12 for the speed setting and the compression of the gas.
  • a shutter 18 is arranged in the annular chamber 12, between the outlets of a supply pipe and a gas outlet pipe (not shown) formed in the stator.
  • the rotor 14 is mounted on one end of a rotation shaft 20, which passes through a shaft passage 22 presented by the stator and which is supported and guided in this shaft passage by means of bearings 24.
  • a bell 26, of cylindrical shape with domed bottom 28, is fixed in a sealed manner at its base on the stator, outside of the latter and around the shaft passage 22, so as to delimit a sealed enclosure 30 in which are housed the shaft passage 22, the end of the shaft 20 emerging from this shaft passage, and an annular part 32 integral with the shaft 20 and carrying on its outer peripheral surface permanent magnets 34, which are in the immediate vicinity of the cylindrical wall of the bell 26.
  • This part 32 and these permanent magnets 34 form part of a magnetic coupling, comprising, outside the bell 26, an annular part 36 secured to a motor shaft 38 coaxial with the shaft 20 of the rotor, permanent magnets 40 being provided on the internal peripheral surface of the part 36 by being arranged in correspondence with the aforementioned magnets 34 and by being separated from the latter by the cylindrical wall of the bell 26.
  • the bell 26 can be made of a metal alloy such as that marketed under the name HASTELLOY, this alloy preferably being non-magnetic and non-conductive, and it can also be made of a composite material, for example carbon fibers, to eliminate the Eddy currents in the magnetic coupling.
  • the sealed enclosure 30 delimited by the bell 26 is intended to be filled with a pressurized liquid, one of the functions of which is the lubrication of the bearings 24.
  • This liquid can therefore be oil when the bearings 24 are ball bearings or water when hydrodynamic bearings are used, or any other suitable liquid.
  • liquid sealing means are arranged between the shaft 20 and the stator.
  • these sealing means comprise a wet mechanical seal, comprising an annular part 42 sealingly mounted on the shaft 20 and driven in rotation by the latter, this annular part 22 having a surface hard radial pressure applied to a radial surface of a corresponding part 44 of the stator.
  • This type of seal allows a very low flow rate of liquid leakage towards the annular chamber 12 of the stator, when the pressure of the liquid is greater than the pressure of the gases in the stator.
  • means for recovering this flow rate of liquid leakage are provided in the stator along the rotor, as indicated in 46, if we want to reduce the traces of liquid present in the treated gas.
  • the pressure of the liquid in the enclosure 30 is regulated by pressurization means, comprising in the example shown a pressure intensifier 48, an inlet of which is connected to a pressure tap 50 located just downstream from the wet mechanical seal 42, 44 and the outlet of which is connected to a conduit 52 formed in the stator and opening out inside the bell 26.
  • the pressure intensifier 48 is part of a closed liquid circuit, comprising a heat exchanger 54 mounted at the outlet of the pressure intensifier and a sealed circulation pump 56 with magnetic drive.
  • the liquid inlet in the pressure intensifier 48 is connected to a conduit 58 opening into the shaft passage 22, upstream of the wet mechanical seal 42.
  • the drive shaft 38 driven in rotation about its axis transmits a drive torque to the shaft 20 of the rotor by means of the magnetic coupling constituted by the parts 32 and 36 and the permanent magnets 34 and 40.
  • the shaft 20 driven in rotation rotates the blades 16 of the rotor in the annular chamber 12 of the stator, for the speed setting and the compression of the gas in this chamber.
  • the gas pressure applied to the pressure intensifier 48 determines a slightly higher liquid pressure in the bell 26. This higher liquid pressure prevents any penetration of gas into the shaft passage 22 and causes a very low leakage rate liquid through the wet mechanical seal 42 to the annular chamber 12, this leakage rate being for example of the order of 0.5 to 1 cm 3 per hour. Optionally, this leak rate can be recovered at 46 before it enters the annular gas circulation chamber 12.
  • the maximum rotational speeds of the magnetic coupling, of the wet mechanical seal 42 and of the peripheral compressor wheel are well adapted to each other (of the order of 3000 to 4000 rpm maximum) and guarantee optimal operation. from the whole.
  • the heat exchanger 54 keeps the liquid in the enclosure 30 at a temperature of the order of 50 to 60 ° C maximum.
  • the pressure of the liquid is for example 20 bars, when the gas pressure is approximately 18 bars in the annular enclosure 12.
  • the compressor of FIG. 2 comprises the same elements as that of FIG. 1, namely a stator 10 with an annular chamber 12 for gas circulation, in which rotates a rotor 14 made up of a peripheral compressor wheel, mounted on a shaft. 20 guided and supported by bearings 24 housed in a shaft passage 22 presented by the stator.
  • the shaft passage 22 is surrounded externally by a bell (not shown) delimiting a sealed enclosure filled with pressurized fluid, and a magnetic coupling (not shown) allows transmission to the shaft 20 of a motor torque.
  • a wet mechanical seal 42 similar to that shown in FIG. 1, is provided between the shaft 20 and the stator, at the outlet of the shaft passage 22 oriented towards the annular chamber 12.
  • an intermediate chamber 60 is provided in the stator 10 between this outlet from the shaft passage 22 and the annular chamber 12 for gas circulation.
  • This intermediate chamber 60 is limited axially by fittings dry sealing 62 carried by the shaft 20 and cooperating with corresponding radial surfaces 64 of the stator 10.
  • a conduit 66 formed in the stator 10 allows to bring into this intermediate chamber 60 a barrier gas under relatively high pressure, higher at the pressure of the gas in the annular chamber 12, this barrier gas being compatible with the gas circulating in the stator and being able to be itself dangerous.
  • another conduit 68 formed in the stator 10 makes it possible to bring a sweeping gas under relatively low pressure, into the annular space 70 formed in the stator around the shaft 20, between the intermediate chamber 60 and the corresponding end of the shaft passage 22 where the wet mechanical seal 42 is located.
  • the intermediate chamber 60 and this annular space 70 are connected to the outside of the stator by gas outlet conduits 72 and 74 respectively.
  • outlet conduits 72 and 74 are connected to gas recovery means, leading for example to combustion means, such as a flare or the like.
  • the relatively high pressure barrier gas which is brought into the intermediate chamber 60 by the conduit 66, can leak on one side towards the annular gas circulation chamber 12 and on the other side in space annular 70 surrounding the end of the shaft passage 22 and the wet mechanical seal 42.
  • the sweeping gas brought into this annular space 70 by the conduit 68 makes it possible to evacuate, through the outlet conduit 74, the leakage rate of barrier gas and the leakage rate of liquid arriving in this annular space 70.
  • the gases leaving the intermediate chamber 60 by the conduit 72 and the annular space 70 by the conduit 74 are then, for example, led to a flare or other suitable means of combustion.
  • a defect in the wet mechanical seal 42 does not affect the operation of the compressor, the barrier gas supplied to the intermediate chamber 60 being opposed to any passage of liquid towards the annular chamber 12 for gas circulation.
  • the barrier gas outlet 72 can be eliminated, the barrier gas then leaking on one side towards the annular chamber 12 and on the other side towards the annular space 70.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP92400245A 1991-02-12 1992-01-30 Turbomaschine - vom Typ Kompressor oder Turbine - zur Verdichtung oder Entspannung eines gefährlichen Gases Expired - Lifetime EP0499504B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9101579A FR2672636B1 (fr) 1991-02-12 1991-02-12 Machine tournante du type compresseur ou turbine pour la compression ou la detente d'un gaz dangereux.
FR9101579 1991-02-12

Publications (2)

Publication Number Publication Date
EP0499504A1 true EP0499504A1 (de) 1992-08-19
EP0499504B1 EP0499504B1 (de) 1995-10-25

Family

ID=9409596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400245A Expired - Lifetime EP0499504B1 (de) 1991-02-12 1992-01-30 Turbomaschine - vom Typ Kompressor oder Turbine - zur Verdichtung oder Entspannung eines gefährlichen Gases

Country Status (5)

Country Link
US (1) US5334004A (de)
EP (1) EP0499504B1 (de)
CA (1) CA2060793A1 (de)
DE (1) DE69205597D1 (de)
FR (1) FR2672636B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334004A (en) * 1991-02-12 1994-08-02 Bertin & Cie Compressor or turbine type rotary machine for compressing or expanding a dangerous gas
DE4432551A1 (de) * 1994-09-13 1996-03-14 Bayer Ag Pumpe zur Förderung heißer, korrosiver Medien
WO2015140669A1 (en) * 2014-03-18 2015-09-24 Fuglesangs Subsea As Rotary machine with sealed magnetic drive

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303629A1 (de) * 1993-02-09 1994-08-18 Junkalor Gmbh Übertemperatur- und Anlaufsicherung in Pumpen mit Permanentmagnet-Kupplungen
US5525039A (en) * 1993-07-21 1996-06-11 Roy E. Roth Company Hermetically sealed magnetic drive pump
US5763973A (en) * 1996-10-30 1998-06-09 Imo Industries, Inc. Composite barrier can for a magnetic coupling
US5993176A (en) * 1997-06-30 1999-11-30 Furon Company Magnetically-driven centrifugal pump
DE19853563A1 (de) * 1998-11-20 2000-05-31 Bayer Ag Korrosionsschutzhülse für Magnetrotoren
JP2001132411A (ja) * 1999-11-04 2001-05-15 Honda Motor Co Ltd 膨脹器の出力軸と被動機側の伝動軸との連結構造
US6520754B2 (en) 2001-01-22 2003-02-18 Randell Technologies Inc. Compressor unit for refrigeration
WO2004070209A1 (ja) * 2003-02-03 2004-08-19 Cap Co., Ltd. 高温ガス送風用ファン
US7217469B2 (en) * 2003-05-27 2007-05-15 General Motors Corporation Fluid handling device for hydrogen-containing process fluids
US20050100462A1 (en) * 2003-11-10 2005-05-12 Ralph Hobmeyr Concentric bearing and seal arrangement of a shaft in a hydrogen system
EP1603180A1 (de) * 2004-05-31 2005-12-07 C.R.F. Societa' Consortile per Azioni Vorrichtung zur Rückführung für ein Brennstoffzellensystem
US20060245961A1 (en) * 2005-04-28 2006-11-02 Tecumseh Products Company Rotary compressor with permanent magnet motor
US7683499B2 (en) * 2006-04-27 2010-03-23 S & W Holding, Inc. Natural gas turbine generator
US8646382B2 (en) * 2009-05-05 2014-02-11 Pearl City Manufacturing, Inc. Convection recirculating fryer for cooking foods
EP2612035A2 (de) 2010-08-30 2013-07-10 Oscomp Systems Inc. Kompressor mit flüssigkeitseinspritzkühlung
US9267504B2 (en) 2010-08-30 2016-02-23 Hicor Technologies, Inc. Compressor with liquid injection cooling
EA027255B1 (ru) 2010-12-21 2017-07-31 ПЕНТЭЙР ФЛОУ ТЕКНОЛОДЖИС, ЭлЭлСи Устройство гидравлического уплотнения с компенсацией давления
US9347458B2 (en) 2010-12-21 2016-05-24 Pentair Flow Technologies, Llc Pressure compensating wet seal chamber
US10161418B2 (en) * 2012-09-12 2018-12-25 Fmc Technologies, Inc. Coupling an electric machine and fluid-end
EP2901018B1 (de) 2012-09-12 2021-04-21 FMC Technologies, Inc. Mehrphasige unterwasserpumpe oder -kompressor mit magnetischer kupplung und kühlung oder schmierung durch eine aus einer prozessflüssigkeit extrahierte flüssigkeit oder ein aus einer prozessflüssigkeit extrahiertes gas
EP2901019A1 (de) 2012-09-12 2015-08-05 Christopher E. Cunningham Unterseeverdichter oder pumpe mit einem hermetisch abgedichteten elektromotor und einer magnetischen kupplung
WO2014042624A1 (en) 2012-09-12 2014-03-20 Cunningham Christopher E Up-thrusting fluid system
WO2014098746A1 (en) * 2012-12-21 2014-06-26 Cassandra Oil Technology Ab Gastight reactor comprising rotating crushing means
CA3128625A1 (en) 2013-03-15 2014-09-25 Fmc Technologies, Inc. Submersible well fluid system
DE102013008795B3 (de) * 2013-05-24 2014-08-21 Ksb Aktiengesellschaft Pumpenanordnung
GB2581339A (en) * 2019-02-08 2020-08-19 Hmd Seal/Less Pumps Ltd Containment shell for a magnetic pump
KR102261509B1 (ko) * 2019-11-28 2021-06-07 주식회사 인지니어스 고온 기체용 밀폐형 송풍기

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR762483A (fr) * 1933-01-05 1934-04-12 Dispositif d'entraînement magnétique entre un organe récepteur et sa commande mécanique, plus particulièrement applicable aux pompes, compresseurs et autres appareils similaires
US2457880A (en) * 1944-07-31 1949-01-04 Chrysler Corp Drive means for compressors or the like
FR1197413A (fr) * 1957-06-28 1959-12-01 Sulzer Ag Turbine de détente
CH380283A (de) * 1960-09-07 1964-07-31 Sulzer Ag Wellenabdichtung
US3539270A (en) * 1968-03-14 1970-11-10 Carrier Corp Method of and apparatus for lubricating and cooling a rotary shaft seal assembly
US3831381A (en) * 1973-05-02 1974-08-27 J Swearingen Lubricating and sealing system for a rotary power plant
US4722663A (en) * 1986-02-04 1988-02-02 Rotoflow Corporation Seal-off mechanism for rotating turbine shaft
EP0344532A2 (de) * 1988-06-03 1989-12-06 Ekato Industrieanlagen Verwaltungsgesellschaft mbH & Co. Anordnung zur sicheren Abdichtung der Lagerung einer rotierenden Welle mit zugehörigem Antriebselement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA699909A (en) * 1964-12-15 Schwarz Kurt Shaft seal
FR1166228A (fr) * 1956-02-17 1958-11-04 Heraeus Gmbh W C Pompe à vide poussé mécanique résistant à la corrosion
CH342809A (de) * 1956-09-01 1959-11-30 Tech Studien Ag Einrichtung zur Abdichtung eines gasförmige Spaltprodukte aus Kernreaktionen enthaltenden Raumes gegen aussen an relativ zueinander bewegten Teilen
CH464625A (de) * 1966-10-12 1968-10-31 Sulzer Ag Wellendichtung für ein Gebläse, insbesondere für das Umwälzgebläse einer gasgekühlten Kernreaktoranlage
US3477729A (en) * 1967-05-19 1969-11-11 Durametallic Corp Cooling system for a stuffing box seal
US3645643A (en) * 1970-05-11 1972-02-29 Carrier Corp Seal and lubrication system for rotating machinery
JPS5248261B2 (de) * 1972-04-11 1977-12-08
US3919854A (en) * 1973-03-14 1975-11-18 Technip Cie Gas sealing assembly
US4209282A (en) * 1978-05-03 1980-06-24 Hale Fire Pump Company Pump assembly
JPS5835292A (ja) * 1981-08-27 1983-03-01 Matsushita Electric Ind Co Ltd メカニカルシ−ルポンプ
JPS60206665A (ja) * 1984-03-30 1985-10-18 Nec Home Electronics Ltd 往復印字制御方式
DE3715484A1 (de) * 1987-05-09 1988-11-17 Klaus Union Armaturen Magnetischer pumpenantrieb
DE3818832A1 (de) * 1988-06-03 1989-12-07 Uranit Gmbh Spalttopf fuer stopfbuchsenlose elektrische oder magnetische antriebsaggregate
FR2672636B1 (fr) * 1991-02-12 1995-01-13 Bertin & Cie Machine tournante du type compresseur ou turbine pour la compression ou la detente d'un gaz dangereux.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR762483A (fr) * 1933-01-05 1934-04-12 Dispositif d'entraînement magnétique entre un organe récepteur et sa commande mécanique, plus particulièrement applicable aux pompes, compresseurs et autres appareils similaires
US2457880A (en) * 1944-07-31 1949-01-04 Chrysler Corp Drive means for compressors or the like
FR1197413A (fr) * 1957-06-28 1959-12-01 Sulzer Ag Turbine de détente
CH380283A (de) * 1960-09-07 1964-07-31 Sulzer Ag Wellenabdichtung
US3539270A (en) * 1968-03-14 1970-11-10 Carrier Corp Method of and apparatus for lubricating and cooling a rotary shaft seal assembly
US3831381A (en) * 1973-05-02 1974-08-27 J Swearingen Lubricating and sealing system for a rotary power plant
US4722663A (en) * 1986-02-04 1988-02-02 Rotoflow Corporation Seal-off mechanism for rotating turbine shaft
EP0344532A2 (de) * 1988-06-03 1989-12-06 Ekato Industrieanlagen Verwaltungsgesellschaft mbH & Co. Anordnung zur sicheren Abdichtung der Lagerung einer rotierenden Welle mit zugehörigem Antriebselement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WORLD PUMPS. no. 4, Avril 1984, MORDEN GB pages 175 - 178; KNORR-SCHILLINGER: 'PERMANENT MAGNET DRIVES FOR PUMPS AND AGITATORS' *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334004A (en) * 1991-02-12 1994-08-02 Bertin & Cie Compressor or turbine type rotary machine for compressing or expanding a dangerous gas
DE4432551A1 (de) * 1994-09-13 1996-03-14 Bayer Ag Pumpe zur Förderung heißer, korrosiver Medien
US5569024A (en) * 1994-09-13 1996-10-29 Bayer Aktiengesellschaft Pump for delivering hot, corrosive media
EP0702155A3 (de) * 1994-09-13 1997-01-08 Bayer Ag Pumpe zur Förderung heisser, korrosiver Medien
WO2015140669A1 (en) * 2014-03-18 2015-09-24 Fuglesangs Subsea As Rotary machine with sealed magnetic drive

Also Published As

Publication number Publication date
DE69205597D1 (de) 1995-11-30
CA2060793A1 (fr) 1992-08-13
US5334004A (en) 1994-08-02
EP0499504B1 (de) 1995-10-25
FR2672636A1 (fr) 1992-08-14
FR2672636B1 (fr) 1995-01-13

Similar Documents

Publication Publication Date Title
EP0499504B1 (de) Turbomaschine - vom Typ Kompressor oder Turbine - zur Verdichtung oder Entspannung eines gefährlichen Gases
EP1281871B1 (de) Abdichtung für Verdichter und Kreiselverdichter mit dieser Abdichtung
BE1014892A5 (fr) Compresseur a vis sans huile.
CA2524594C (fr) Dispositif de lubrification d'un composant dans une turbomachine
FR2637654A1 (fr) Appareil de mise sous vide
FR2548752A1 (fr) Joint liquide pour gaz avec balayage de fluide
FR2997739A1 (fr) Compresseur comprenant un equilibrage de poussee
US5823539A (en) Environmentally safe pump having a bellows seal and a split ring shaft seal
FR2486820A1 (fr) Induit de moteur electrique utilise directement en organe melangeur et/ou propulseur pour fluides
CA1129250A (fr) Pompe helico-centrifuge de circulation de fluide
FR2712936A1 (fr) Boîte d'étanchéïté perfectionnée pour pompe et son application notamment à une pompe alimentaire de centrale électrique.
FR2602846A1 (fr) Dispositif d'etancheite centrifuge sans contact pour un organe tournant de machine
FR2686658A1 (fr) Dispositif de securite pour pompe primaire.
CH343727A (fr) Dispositif pour assurer l'étanchéité autour d'un arbre rotatif traversant une paroi
EP0143684B1 (de) Mehrstufiger Serienverdichter
FR2595410A1 (fr) Joint de transfert de fluide et procede d'application a un rotor d'un fluide provenant d'un stator
FR2792687A1 (fr) Procede et dispositif d'isolation etanche d'un espace interne d'une machine tournante et utilisation pour effectuer un essai de validation des performances de la machine tournante
EP0541883A1 (de) Mit einer Reaktionsturbine angetriebene Pumpe
FR2765653A1 (fr) Dispositif de confinement a gaz supportant temporairement une surpression elevee
WO2017212196A1 (fr) Element tubulaire de rotor a section etoilee pour une turbomachine
EP1473462B1 (de) Patrone zum Zusammenbau eines Verdichters
JP2831302B2 (ja) ガスタービン駆動ポンプ
FR2697598A1 (fr) Dispositif de protection contre l'entrée de particules et de polluants solides.
BE633578A (de)
CN109681446A (zh) 超临界co2溶剂加压离心泵

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT NL

17P Request for examination filed

Effective date: 19930201

17Q First examination report despatched

Effective date: 19940209

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19951025

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19951025

Ref country code: GB

Effective date: 19951025

REF Corresponds to:

Ref document number: 69205597

Country of ref document: DE

Date of ref document: 19951130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960126

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19951025

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed