EP0290606A1 - Centrifugeuse - Google Patents

Centrifugeuse Download PDF

Info

Publication number
EP0290606A1
EP0290606A1 EP87900984A EP87900984A EP0290606A1 EP 0290606 A1 EP0290606 A1 EP 0290606A1 EP 87900984 A EP87900984 A EP 87900984A EP 87900984 A EP87900984 A EP 87900984A EP 0290606 A1 EP0290606 A1 EP 0290606A1
Authority
EP
European Patent Office
Prior art keywords
oil
centrifuge
cooling
pump
drive
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.)
Withdrawn
Application number
EP87900984A
Other languages
German (de)
English (en)
Other versions
EP0290606A4 (fr
Inventor
Boris Pavlovich Gorodissky
Jury Alexandrovich Lotts
Lev Nikolaevich Veretenov
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.)
MOSKOVSKOE NAUCHNO-PROIZVODSTVENNOE OBIEDINENIE 'BIOFIZPRIBOR'
Original Assignee
MOSKOVSKOE NAUCHNO-PROIZVODSTVENNOE OBIEDINENIE 'BIOFIZPRIBOR'
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 MOSKOVSKOE NAUCHNO-PROIZVODSTVENNOE OBIEDINENIE 'BIOFIZPRIBOR' filed Critical MOSKOVSKOE NAUCHNO-PROIZVODSTVENNOE OBIEDINENIE 'BIOFIZPRIBOR'
Publication of EP0290606A1 publication Critical patent/EP0290606A1/fr
Publication of EP0290606A4 publication Critical patent/EP0290606A4/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B04B15/08—Other accessories for centrifuges for ventilating or producing a vacuum in the centrifuge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B04B15/02—Other accessories for centrifuges for cooling, heating, or heat insulating

Definitions

  • the invention relates to centrifuges used in biology, biophysics, medicine and in other fields of science and technology.
  • a centrifuge is known (brochure from Beckman for a preparative centrifuge L 8, p. 5) which contains a vacuum chamber, a drive for the replaceable rotor, a diffusion pump, an evaporator system and a cooling system for the drive and diffusion pump.
  • an additional cooling unit installed in the centrifuge ensures that the temperature of the drive of the exchangeable rotor is maintained.
  • this makes the centrifuge much more complicated because two refrigeration units are required: one in the evaporator system of the vacuum chamber and the other in the cooling system of the drive.
  • a centrifuge (material of the symposium “Laboratory centrifuges and ultracentrifuges from Heraeus Christ", pp. 4-6) is known, which has a vacuum chamber, a drive for the exchangeable rotor, a diffusion pump, an evaporator system, a lubrication system for the bearings of the drive for the replaceable one Includes rotors and a cooling system.
  • the temperature conditions of the interchangeable rotor are ensured by the evaporator system and the temperature conditions of the drive of the interchangeable rotor and the diffusion pump by the cooling system, in which water from a main water line is used as the cooling medium.
  • the invention has for its object to provide a centrifuge, the construction of which would allow 01 to be used for the position lubrication as a medium for cooling the rotor drive, thereby simplifying the centrifuge and increasing its dimensions and mass.
  • the essence of the invention is that the centrifuge, which has a vacuum chamber with a rotor which can be mounted therein, a refrigeration unit which is connected via a main line in which a refrigerant circulates to an evaporator which is accommodated in the vacuum chamber is, a rotor drive, which is provided with bearings and a cooling jacket, and contains an oil container with a pump for supplying oil to the bearings, according to the invention is equipped with a heat exchanger for oil cooling, in which a heat exchange takes place between the 01 and the refrigerant of the refrigeration unit can come while the pump for supplying oil to the bearings is connected to the oil tank via the heat exchanger and the cooling jacket of the rotor drive.
  • Such a design of the cooling system of the rotor drive allows the 01 to be used for the lubrication of the bearings of the rotor drive as a medium for cooling the rotor drive. This offers the possibility of dispensing with additional devices for cooling the rotor drive and thereby creating a small and simple centrifuge.
  • centrifuge with a diffusion pump which has a cooling jacket, the pump for the oil supply into the bearings of the rotor drive being connected to the oil container via the heat exchanger, the cooling jacket of the diffusion pump and the cooling jacket of the rotor drive.
  • This solution allows the diffusion pump to be cooled without the use of an additional refrigerant and an additional device, which also simplifies the centrifuge and reduces its mass.
  • the centrifuges used in industry which have a high circulation speed and are also referred to as ultracentrifuges, usually have a vacuum system to maintain the required vacuum level, an evaporator system to maintain the required temperature conditions, a cooling system and a lubrication system for running parts, especially for bearings.
  • the vacuum system which maintains the required vacuum level in the vacuum chamber 1 (FIG. 1), contains, among other things, a vacuum pump 2.
  • a vacuum pump 2 In the vacuum chamber 1, devices are provided which ensure the necessary conditions for centrifuging.
  • the evaporator system contains a refrigeration unit 3 and an evaporator 4, which is located in the chamber 1.
  • a heating element 6 is arranged between the bottom of the chamber 1 and the jacket section 5 of the evaporator 4.
  • An interchangeable rotor 7 is installed in the chamber 1 and is fastened on the flexible shaft 8 of a drive 9.
  • the cooling unit 3 and the heating element 6 ensure that the predetermined temperature conditions of the replaceable rotor 7 are maintained.
  • a lubrication system which consists of an oil pump 11 which is installed in an oil container 12.
  • a filter 13 is installed, which is constructed on a support 14, which connects the pump 11 to an electric motor 15.
  • a valve 16 which is connected to the bearings 10 by means of a pipeline 17, is used for supplying oil to the bearings 10 from the oil container 12.
  • a pipe 18 is connected to the drive 9 and the oil tank 12 and is used for the oil discharge from the camps 10.
  • the cooling system intended for maintaining predetermined temperature conditions of the drive 9 consists of a heat exchanger 19 and pipes which connect it to the evaporator and the lubrication system.
  • the valve 16 and the pipeline 17 and 18 form a lubrication circuit for the bearings of the drive 9.
  • the filter 13 is connected to the heat exchanger 19 by means of a pipeline 20.
  • the cooling jacket 21 of the drive 9 is also connected to the heat exchanger 19 via a pipeline 22.
  • the oil circulating via the heat exchanger 19 is returned to the oil container 12 via a pipeline 23.
  • the heat exchanger 19, the pipes 20, 22, 23 and the cooling jacket 21 form the cooling circuit of the drive 9.
  • the cold unit 3 is connected via a pipe 24 to a temperature control valve 25 which is connected to the evaporator 4 by means of a pipe 26.
  • the latter is connected to the coil 27 of the heat exchanger 19 by means of a pipeline 28.
  • the pipe coil 27 is in turn connected to the cooling unit 3 by means of a pipe 29.
  • the pipes 26, 28 and 29 form a main line for the circulation of the refrigerant of the refrigeration unit 3.
  • a temperature sensor 30, which controls the temperature control valve 25, is attached to the pipeline 29. In this way, the refrigerant of the refrigeration unit 3 circulating in the cooling circuit of the interchangeable rotor 7 simultaneously cools the oil which circulates in the cooling circuit of the drive 9.
  • the centrifuge works as follows. A preparation to be examined is introduced into the exchangeable rotor 7, whereupon this rotor is attached to the flexible shaft 8 of the drive 9. Then you turn on the vacuum pump 2, the oil pump 11 and the refrigeration unit 3. After a predetermined residual pressure in the vacuum chamber 1 is correct, the drive 9 is started, which accelerates the interchangeable rotor 9 to a predetermined speed.
  • the work of the lubrication system, the evaporator system and the cooling system is discussed below.
  • the lubrication system works as follows.
  • the lubricant is conveyed from the container 12 through the pump 11 into the filter 13 and then into the valve 16, from which it reaches the bearings 10 via the pipeline 17.
  • the lubricant flows out of the bearings 10 via the pipeline 18 into the container 12.
  • the work of the evaporator system is as follows.
  • the liquid freon which is used as refrigerant, passes from the refrigeration unit 3 via the pipeline 24 into the temperature control valve 25, from which it is fed to the evaporator 5 via the pipeline 26.
  • the freon flows via the pipe 28 into the coil 27 of the heat exchanger 19, from which it returns via the pipe 29 into the refrigeration unit 9.
  • Maintaining a certain temperature of the oil that is supplied to the cooling circuit of the drive 9 is necessary in order to create an optimal operating state of the latter regardless of the ambient temperature.
  • the oil temperature is controlled by the temperature control valve 25.
  • a control signal arrives at valve 25 from temperature sensor 30 attached to pipe 29.
  • the oil that circulates in the cooling circuit is required in this circuit by the same oil pump 11 that is used in the lubrication system. In the functioning oil pump 11, the oil from the filter 13 passes through the pipeline 20 into the heat exchanger 19, where it is cooled.
  • the cooled oil flows through the pipe 22 into the cooling jacket 21, from which it returns via the pipe 23 into the oil container 12.
  • FIG. 2 shows an embodiment of the centrifuge which has a diffusion pump 31 with a cooling jacket 32, which is connected to the cooling jacket 21 of the drive 9 by means of a pipeline 33.
  • This centrifuge works in a similar manner, except that the oil from the heat exchanger 19 the pipe 22 enters the cooling jacket 32 of the diffusion pump 31 and further via the pipe 33 into the cooling jacket 21 of the drive 9, from which it flows back via the pipe 23 into the oil container 12.
  • the temperature of the oil circulating in the cooling system is maintained using the cooling unit of the evaporator system. As a result, there is no need to have a second refrigeration unit and a second tank with the pump for the refrigerant circulation.
  • the volume that is taken up by the cooling system is at most 1.5% of the total volume of the centrifuge.
  • the utilization of the invention offers the possibility of maintaining the predetermined temperature conditions of the drive of the exchangeable rotor of the centrifuge and of the diffusion pump (if this is provided by the construction). Thanks to this design of the cooling system, which makes it possible to use the 01 for the lubrication of the bearings of the rotor drive as a medium for cooling this drive, there is no need either via a second cooling unit or a second tank with a pump for circulating the coolant and to have a cooler of the same. Overall, the centrifuge according to the invention has minimal dimensions and simple construction.

Landscapes

  • Centrifugal Separators (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Abstract

Une centrifugeuse comporte une chambre à vide (1) munie d'un rotor interchangeable (7). Un évaporateur relié à une installation de refroidissement (3) est monté à l'intérieur de la chambre à vide (1). L'entraînement (9) du rotor (7) est monté sur des paliers (10) et est équipé d'une enveloppe de refroidissement (21). Un réservoir à huile (12) muni d'une pompe (11) sert à introduire l'huile dans les paliers (10). La centrifugeuse est pourvue d'un échangeur de chaleur (19) servant à refroidir l'huile et monté de manière à permettre l'échange thermique entre l'huile et le réfrigérant de l'installation de refroidissement (3). La pompe (11) est reliée par l'échangeur de chaleur (19) et l'enveloppe de refroidissement (21) au réservoir à huile (12).
EP19870900984 1986-11-20 1986-11-20 Centrifugeuse. Withdrawn EP0290606A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1986/000120 WO1988003840A1 (fr) 1986-11-20 1986-11-20 Centrifugeuse

Publications (2)

Publication Number Publication Date
EP0290606A1 true EP0290606A1 (fr) 1988-11-17
EP0290606A4 EP0290606A4 (fr) 1990-02-21

Family

ID=21617061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870900984 Withdrawn EP0290606A4 (fr) 1986-11-20 1986-11-20 Centrifugeuse.

Country Status (6)

Country Link
US (1) US4941866A (fr)
EP (1) EP0290606A4 (fr)
JP (1) JPH01501453A (fr)
FI (1) FI883384A (fr)
HU (1) HU202774B (fr)
WO (1) WO1988003840A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1617952B2 (fr) † 2003-04-08 2012-12-26 Alfa Laval Corporate AB Dispositif d'entrainement pour un separateur centrifuge
US10357787B2 (en) 2009-03-06 2019-07-23 Alfa Laval Corporate Ab Centrifugal separator having energy consumption reducing devices
WO2021214294A1 (fr) * 2020-04-24 2021-10-28 Gea Mechanical Equipment Gmbh Séparateur ayant un entraînement direct
DE102022117310A1 (de) 2022-07-12 2024-01-18 Gea Westfalia Separator Group Gmbh Verfahren zur Überwachung und Regelung der Kühlmitteltemperatur einer Antriebvorrichtung eines Separators

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5653672A (en) * 1995-06-28 1997-08-05 Hitachi Koki Co., Ltd. Centrifugal separator with thermo-module
US6196961B1 (en) 1998-03-19 2001-03-06 Hitachi Koki Co., Ltd. Automatic centrifugal machine employing a link arm mechanism
FR2790406B1 (fr) * 1999-03-01 2001-06-01 Jouan Centrifugeuse a entrainement pneumatique et a filtration de l'atmosphere de son enceinte
FR2790407B1 (fr) * 1999-03-01 2001-06-01 Jouan Centrifugeuse a refroidissement par tube de ranque
GB2357715A (en) * 1999-11-18 2001-07-04 Genevac Ltd Centrifugal evaporator
US6981940B2 (en) * 2003-06-23 2006-01-03 Abb Inc. Centrifuge control system with power loss ride through
TWI558461B (zh) 2007-12-21 2016-11-21 阿法瓦塞爾曼股份有限公司 連續流超離心系統（一）
US8099430B2 (en) 2008-12-18 2012-01-17 International Business Machines Corporation Computer method and apparatus of information management and navigation
DE102008015134A1 (de) * 2008-03-20 2009-10-01 Gea Westfalia Separator Gmbh Getriebeanordnung für eine Zentrifuge
SE533276C2 (sv) * 2008-12-19 2010-08-10 Alfa Laval Corp Ab Centrifugalseparator med smörjanordning
JP5218857B2 (ja) * 2009-07-27 2013-06-26 日立工機株式会社 遠心分離機
JP5854216B2 (ja) * 2012-01-18 2016-02-09 日立工機株式会社 遠心分離機
JP5854218B2 (ja) * 2012-01-24 2016-02-09 日立工機株式会社 遠心分離機
DE102013100180A1 (de) * 2012-03-26 2013-09-26 Gea Mechanical Equipment Gmbh Separatoranordnung
CA2878645C (fr) * 2014-01-22 2017-02-21 Alfa Wassermann, Inc. Systemes de centrifugation munis de joints d'etancheite sans contact
DE102014107294B4 (de) * 2014-05-23 2017-02-09 Andreas Hettich Gmbh & Co. Kg Zentrifuge
DE102014110467A1 (de) * 2014-07-24 2016-01-28 Andreas Hettich Gmbh & Co. Kg Zentrifuge
EP3075455B1 (fr) * 2015-03-31 2017-12-06 Alfa Laval Corporate AB Refroidissement ou chauffage de paliers dans un séparateur centrifuge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286785B (de) * 1964-06-10 1969-01-09 Heraeus Christ Gmbh Vakuumzentrifuge
US3602425A (en) * 1969-04-09 1971-08-31 Beckman Instruments Inc Evaporative cooling device for a centrifuge rotary seal
US3942716A (en) * 1973-01-15 1976-03-09 Beckman Instruments, Inc. Flow-thru vacuum bushing for ultracentrifuges
JPS57937Y2 (fr) * 1978-03-13 1982-01-07
US4322030A (en) * 1979-03-14 1982-03-30 Beckman Instruments, Inc. Lubrication and cooling system for a high speed ultracentrifuge drive assembly
US4316434A (en) * 1980-02-13 1982-02-23 Bailey Burners, Inc. Method and apparatus for improving heat transfer
US4376902A (en) * 1982-03-03 1983-03-15 Borg-Warner Corporation Hermetic dynamoelectric device with two-phase refrigerant cooling and sealing
US4470772A (en) * 1982-05-20 1984-09-11 Tecumseh Products Company Direct suction radial compressor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Keine weitere Entgegenhaltungen. *
See also references of WO8803840A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1617952B2 (fr) † 2003-04-08 2012-12-26 Alfa Laval Corporate AB Dispositif d'entrainement pour un separateur centrifuge
US10357787B2 (en) 2009-03-06 2019-07-23 Alfa Laval Corporate Ab Centrifugal separator having energy consumption reducing devices
US10427171B2 (en) 2009-03-06 2019-10-01 Alfa Laval Corporate Ab Centrifugal separator having energy consumption reducing devices
US11396026B2 (en) 2009-03-06 2022-07-26 Alfa Laval Corporate Ab Centrifugal separator having energy consumption reducing devices
WO2021214294A1 (fr) * 2020-04-24 2021-10-28 Gea Mechanical Equipment Gmbh Séparateur ayant un entraînement direct
DE102022117310A1 (de) 2022-07-12 2024-01-18 Gea Westfalia Separator Group Gmbh Verfahren zur Überwachung und Regelung der Kühlmitteltemperatur einer Antriebvorrichtung eines Separators

Also Published As

Publication number Publication date
JPH01501453A (ja) 1989-05-25
EP0290606A4 (fr) 1990-02-21
HUT51510A (en) 1990-05-28
HU202774B (en) 1991-04-29
WO1988003840A1 (fr) 1988-06-02
FI883384A0 (fi) 1988-07-15
FI883384A (fi) 1988-07-15
US4941866A (en) 1990-07-17

Similar Documents

Publication Publication Date Title
EP0290606A1 (fr) Centrifugeuse
DE60220814T2 (de) Schmelzklebstoff-auftragsvorrichtung mit einem zentral angeordneten verteiler und möglichkeit zur lokalen beheizung
DE69721362T2 (de) Mehrkammerpatrone sowie Verfahren zur Extraktion mit überkritischen Fluiden
DE837373C (de) Zentrifuge zum Trennen von Komponenten verschiedenen spezifischen Gewichts eines fluessigen oder gasfoermigen Mediums
WO2001048385A1 (fr) Pompe a vide a vis pourvue d'un circuit de refrigerant
DE3544115A1 (de) Zentrifugal-elutriator-rotor
EP0166807B1 (fr) Pompe à vide rotative à palettes
EP2376211B1 (fr) Procédé de purification mobile et module de purification mobile pour liquides
DE102022107260A1 (de) Antriebsvorrichtung und Antriebsvorrichtung-Steuerungsverfahren
DE102018009940A1 (de) Ölkreislaufvorrichtung und Ölkreislaufsystem zum Aufrühren von Öl im Ölbad
DE1295519B (de) Filter mit Trennvorrichtung
CH654257A5 (de) Heizeinrichtung an einer arbeitsmaschine zur heizung einer bedienungskabine oder eines fahrerhauses.
EP0711692B1 (fr) Unité d'entraínement avec un moteur à combustion interne et un ralentisseur hydrodynamique
DE4440163A1 (de) Antriebseinheit mit einer Brennkraftmaschine und einem hydrodynamischen Retarder
DE4440165C2 (de) Antriebseinheit mit einer Brennkraftmaschine und einem hydrodynamischen Retarder
DE2239870A1 (de) Exzentermechanik fuer bodenverdichtungsgeraete
DE69814594T2 (de) Ein schmierkreislaufsystem
DE4440162C2 (de) Antriebseinheit mit einer Brennkraftmaschine und einem hydrodynamischen Retarder
DE3209804C2 (fr)
DE938313C (de) Motorverdichter
DE4110081A1 (de) Verfahren und vorrichtung zur abfuhr von kondensat aus einer fahrzeugklimaanlage
DE102009020215A1 (de) Vorrichtung zum Temperieren eines Temperierfluids
DE10301240A1 (de) Reaktionskammersystem zur Bearbeitung von Proben
DE2511082A1 (de) Elektromotorisch angetriebener hammer mit einem die schmierbeduerftigen teile enthaltenden gehaeuseraum
DE823126C (de) Zentrifugalseparator zum Reinigen von Bier

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

17P Request for examination filed

Effective date: 19880630

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

A4 Supplementary search report drawn up and despatched

Effective date: 19900221

17Q First examination report despatched

Effective date: 19910614

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19930203