EP0179824A1 - Device for stirring or pumping. - Google Patents
Device for stirring or pumping.Info
- Publication number
- EP0179824A1 EP0179824A1 EP85901951A EP85901951A EP0179824A1 EP 0179824 A1 EP0179824 A1 EP 0179824A1 EP 85901951 A EP85901951 A EP 85901951A EP 85901951 A EP85901951 A EP 85901951A EP 0179824 A1 EP0179824 A1 EP 0179824A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stirring
- electromagnetic drive
- drive device
- rotor
- pumping
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/452—Magnetic mixers; Mixers with magnetically driven stirrers using independent floating stirring elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S366/00—Agitating
- Y10S366/601—Motor control
Definitions
- the present invention relates to a device for stirring or pumping, in which a magnetic rotor which is freely rotatable and suitably shaped in a vessel or tube is driven by a rotating magnetic field.
- the liquid or gas When pumping, the liquid or gas primarily receives a directional linear movement, which is usually used to transport the medium from one vessel to another. In some cases, such as the Loop reactor in chemical engineering, pumps are also used to achieve the effects mentioned during stirring, in which the medium is returned from the pump outlet to the inlet.
- a universal device which can set the medium to be treated in a universal movement, so that various functions such as stirring and pumping or other functions such as e.g. Fumigation of the medium. Furthermore, it is important to be able to use this movement of the medium in various vessel shapes or at any point in a chemical apparatus, that is, to achieve universal applicability.
- Agitators in which a permanent magnetic stirrer body is driven by a rotating magnetic field, are particularly widespread in chemical laboratories where only small amounts of liquid have to be stirred.
- the rotating magnetic field is fastened by rotating a centered on the axis of an electric motor Permanent magnets generated.
- the object of the present invention is therefore to overcome these previous disadvantages and to provide a universal device for stirring and general movement of a medium which is universally applicable, can be produced compactly and inexpensively and has a high magnetic efficiency.
- This object is achieved according to the invention in that a device for stirring or pumping a medium is provided with a feed device, an electromagnetic drive device and a freely rotatable magnetic rotor located in the medium, which exerts a stirring or pumping effect when rotating, the feed device delivers phase-shifted alternating currents and thus excites the electromagnetic drive device, which has an annular core made of ferromagnetic material, which is wound with at least two fixed magnet coil segments in the manner of a ring core, whereby the electromagnetic drive device generates a rotating magnetic field which sets the rotor in rotation.
- Figures 1 and 2 the principle of a first and a second embodiment of the invention.
- FIG. 3 shows the cross section of a wound core together with a vessel with a lower outlet
- Figure 4 shows a third embodiment of a electromagnetic drive device, which can be opened
- Figure 5 shows the longitudinal section of a further embodiment as a pump
- Figure 6 shows a variant of the bearing bracket
- FIG. 1 shows a feed device 1, which supplies three alternating currents 7, 7 ', 7 ", each phase-shifted by 120 ° to one another, and which are conducted via a feed line 9 to three magnet coil segments 5, 5', 5" of the electromagnetic drive device.
- a ring-shaped core 4 made of soft magnetic material is wound with these magnet coil segments in the manner of a ring core.
- a rotating magnetic field is created in the vicinity of the axis of the annular core, which rotates a freely rotatable magnetic rotor 3, here in the form of a permanent magnetic stirring body.
- Soft magnetic ring cores are commercially available products and are, with a different wiring of the winding or Windings, used in low stray chokes, transformers and transformers.
- FIG. 2 schematically shows a particularly simple and effective embodiment with four magnet coil segments 6, 6 ', 6 ", 6" *, which, however, are controlled with only two alternating currents 8, 8' which are phase-shifted by approximately 90 °.
- the ring-shaped core has no discrete ferromagnetic poles.
- the four windings are arranged as symmetrically as possible on the core 4 and the core material has soft magnetic properties and permeability that is as independent of the field strength as possible.
- the rotor 3 is located with the liquid or medium 12 to be stirred in a vessel 11.
- This vessel can also be equipped with a central lower outlet 13 which, for. B. is closed with a tap 15.
- the windings of the magnetic coil segments 6.6 “, 6", 6 "'and the core 4 are made with suitable plastic materials, such as;
- Suitable for a water bath Suitable for a water bath.
- various suitable coatings, protective layers or coverings can be applied to protect against
- FIG. 4 shows a further embodiment, the electromagnetic drive device 2 consisting of two parts 19 and 19 ′, which can be opened around a joint 16 located on a holder 18.
- the drive device will facilitate installation in many cases.
- the ring is shown in the closed form for use, the two ring parts are held together by a locking device 17, which can consist, for example, of two holding magnets or a bolt.
- the core and the winding are also impregnated and coated in a corrosion-resistant manner and connected to the feed device 1 by the feed line 9.
- FIG. 5 shows the longitudinal section of a further embodiment of the invention serving as a pump.
- the wound and coated core 4 surrounds a tube 23 which guides the medium in the direction indicated by the arrow A.
- a specially shaped magnetic rotor 3 'in the interior of the tube has a pumping effect due to the action of vanes when rotating.
- Two bearing elements 20 of the rotor are received by the bearing brackets 21. The latter are fixed in the interior of the tube by elastic clamping elements 22.
- the invention can also be used to increase the rate of mass transfer when gassing liquids or extracting.
- the magnetic rotor 3 ' designed as a suitable gassing or extraction body, preferably with a vertical axis, is driven by a rotating magnetic field generated according to the invention.
- the rotor can be supported, for example, by one or two of the bearing brackets 21 shown in FIGS. 5 or 6.
- the two alternating voltages of the supply device which are phase-shifted by 90 °, for controlling an annular core with four windings can be synthesized, for example, together with other electronic components using a commercially available integrated function generator.
- the sine output is one phase.
- a triangle voltage that is 90 ° out of phase is generated from the signal of the triangle output.
- a suitable triangle-sine converter delivers the second phase.
- the alternating voltages can also be generated digitally and with a DA converter can be converted into an analog signal.
- this starting process is carried out automatically by operating the switch.
- the corresponding electrical circuit becomes particularly simple if a voltage-controlled oscillator is used as the frequency-giving element.
- the average drive speed of the frequency can be selected as a parameter, for example, on a variable resistor, via which a capacitor is charged.
- the automatic start can be implemented in software by means of a feed program for the flow of the feed currents and thus the movement of the rotor. Sometimes reversing the stirring direction after a certain time or even a shaking of the stirring body is desired during stirring. This too
- Embodiments are easy to implement.
- the drive device 2 can additionally be combined with a heating or cooling device.
- the wound annular core is installed in a heating cap 14, a version which is particularly suitable for distilling and carrying out chemical reactions in round-bottom flasks.
- the demanding scope of the invention is not limited to the examples described here.
- practically useful devices can also be built with phase shifts, curve shapes or arrangements of the coils on the annular core other than those described.
- the coil segments in FIGS. 1 and 2 are symbolic representations and do not provide any information about the number of turns per coil segment.
- the number of turns of the magnet coils result from the required magnetic flux and the current amplitude of the feed device.
- the ring-shaped ferromagnetic core can be made of solid or, to reduce eddy currents, divided material.
- the segmentation of the core can be used to produce the electromagnetic inexpensive Contribute drive device.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85901951T ATE40306T1 (en) | 1984-05-07 | 1985-04-30 | DEVICE FOR STIRRING OR PUMPING. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2204/84A CH668919A5 (en) | 1984-05-07 | 1984-05-07 | DEVICE FOR STIRING OR PUMPING A MEDIUM. |
CH2204/84 | 1984-05-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0179824A1 true EP0179824A1 (en) | 1986-05-07 |
EP0179824B1 EP0179824B1 (en) | 1989-01-25 |
Family
ID=4228325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85901951A Expired EP0179824B1 (en) | 1984-05-07 | 1985-04-30 | Device for stirring or pumping |
Country Status (7)
Country | Link |
---|---|
US (1) | US4752138A (en) |
EP (1) | EP0179824B1 (en) |
JP (1) | JPS61502039A (en) |
AT (1) | ATE40306T1 (en) |
CH (1) | CH668919A5 (en) |
DE (3) | DE8590060U1 (en) |
WO (1) | WO1985005046A1 (en) |
Families Citing this family (58)
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FR2623104B1 (en) * | 1987-05-14 | 1991-10-04 | Coca Cola Co | AGITATOR FOR CARBONATION APPARATUS |
US4808348A (en) * | 1987-05-14 | 1989-02-28 | The Coca-Cola Company | Microgravity carbonator |
DE58903323D1 (en) * | 1988-06-04 | 1993-03-04 | Sartorius Gmbh | UPPER-SHELL ELECTRONIC SCALE. |
US4911556A (en) * | 1989-03-17 | 1990-03-27 | Lim Technology Laboratories, Inc. | Turbulent stirring unit |
AU5353190A (en) * | 1989-03-17 | 1990-10-22 | Lim Technology Laboratories, Inc. | Turbulent stirring unit |
US5120135A (en) * | 1989-12-13 | 1992-06-09 | Syntex (U.S.A.) Inc. | Method and apparatus for keeping particles in suspension |
CN1017692B (en) * | 1990-02-26 | 1992-08-05 | 华南理工大学 | Dynamic electromagnetic plasticating and extruding method and equipment |
JPH05273800A (en) * | 1992-03-25 | 1993-10-22 | Toray Ind Inc | Electrophotographic printer |
US5470152A (en) * | 1993-02-23 | 1995-11-28 | General Signal Corporation | Radially mounted magnetic coupling |
DE4421431C2 (en) * | 1994-06-18 | 1997-07-17 | Janke & Kunkel Kg | Laboratory pump for liquids |
US5529391A (en) * | 1994-09-22 | 1996-06-25 | Duke University | Magnetic stirring and heating/cooling apparatus |
AU4927496A (en) * | 1995-02-21 | 1996-09-11 | Iqbal W. Siddiqi | Apparatus and method for mixing and separation employing magnetic particles |
US6884357B2 (en) | 1995-02-21 | 2005-04-26 | Iqbal Waheed Siddiqi | Apparatus and method for processing magnetic particles |
US6500343B2 (en) | 1995-02-21 | 2002-12-31 | Iqbal W. Siddiqi | Method for mixing and separation employing magnetic particles |
US5835329A (en) * | 1995-06-05 | 1998-11-10 | Solid Phase Sciences Corporation | Apparatus for agitation separation of magnetic particles |
DE19603166A1 (en) * | 1996-01-29 | 1997-07-31 | Wtw Weilheim | Device and method for improving gas exchange in BOD measurement |
DE19615117A1 (en) * | 1996-04-17 | 1997-10-23 | Bayer Ag | Chemical reactor with magnetic stirrer |
US5899567A (en) * | 1997-09-23 | 1999-05-04 | Morris, Jr.; Joseph E. | Magnetic synchronized stirring and heating test apparatus |
US6163095A (en) * | 1997-12-09 | 2000-12-19 | Imi Cornelius Inc. | Drive system for a frozen food product dispenser |
US6095677A (en) * | 1999-01-12 | 2000-08-01 | Island Oasis Frozen Cocktail Co., Inc. | Magnetic drive blender |
US6793167B2 (en) | 1999-01-12 | 2004-09-21 | Island Oasis Cocktail Company, Inc. | Food processing apparatus including magnetic drive |
NZ513327A (en) | 1999-01-12 | 2003-01-31 | Island Oasis Frozen Cocktail C | Food processing apparatus including magnetic drive |
US20020118594A1 (en) * | 2001-02-28 | 2002-08-29 | Vellinger John C. | Apparatus and method for mixing small volumes of liquid |
WO2002096761A2 (en) * | 2001-05-22 | 2002-12-05 | Shurflo Pump Manufacturing Company, Inc. | Appliance and an appliance drive unit |
EP1280257A1 (en) * | 2001-07-23 | 2003-01-29 | ALSTOM (Switzerland) Ltd | High voltage generator |
AU2003245564A1 (en) * | 2002-06-20 | 2004-01-06 | Arizona Board Of Regents | Method and arrangement of rotating magnetically inducible particles |
US6962433B2 (en) * | 2003-01-30 | 2005-11-08 | Scientific Industries, Inc. | Magnetic stirring apparatus having low rotational speeds |
ITMI20040137U1 (en) * | 2004-03-31 | 2004-06-30 | Passoni Giovanni | AGITATOR DEVICE FOR TUBES WITH DRIVE WITHOUT CONTACT |
JP2006061864A (en) * | 2004-08-30 | 2006-03-09 | As One Corp | Electromagnetic stirrer |
US20060146645A1 (en) * | 2005-01-06 | 2006-07-06 | Rosener William J | MagnaStir |
US7494267B2 (en) * | 2005-08-30 | 2009-02-24 | Chemglass, Inc. | Reaction block for supporting flasks of different sizes for chemical synthesis on a hot plate stirrer |
DE102006024300B4 (en) * | 2006-05-24 | 2008-08-14 | Manfred Schmelzer Gmbh | Device for stirring liquids |
CN101466460A (en) * | 2006-07-14 | 2009-06-24 | 西格玛-奥尔德利希公司 | Magnetic stirrer |
US20080059909A1 (en) * | 2006-09-01 | 2008-03-06 | Rita Parada | Enhanced list based user interface in mobile context |
US7963733B2 (en) * | 2008-10-01 | 2011-06-21 | Perfect Systems, Llc | Apparatus for and a method of binding of a perfect bound book |
US8398297B2 (en) | 2009-08-13 | 2013-03-19 | General Electric Company | Electromagnetic stirring apparatus |
CN102234611A (en) * | 2010-04-27 | 2011-11-09 | 杭州绿洁水务科技有限公司 | Control device applicable to comprehensive toxicity detection |
RU2461416C2 (en) * | 2010-09-17 | 2012-09-20 | Лев Алексеевич Жолобов | Velocity layer electromagnetic apparatus and method of its production |
DE102010047766A1 (en) * | 2010-10-08 | 2012-04-12 | Andreas Heigl | Apparatus for preparation of liquid or mushy food e.g. baby food and beverages, has a vessel, filling device for supplying predetermined amount of instant food powder to vessel, and liquid reservoir for supplying vessel with liquid |
CN105050720A (en) | 2013-01-22 | 2015-11-11 | 华盛顿大学商业化中心 | Sequential delivery of fluid volumes and associated devices, systems and methods |
CN103551069B (en) * | 2013-09-17 | 2015-07-29 | 广州英佩尔电子科技有限公司 | A kind of agitating device |
CN103768987A (en) * | 2013-12-27 | 2014-05-07 | 天津美湖机电科技有限公司 | Motor-driven-free variable speed stirring device |
US20150203806A1 (en) * | 2014-01-21 | 2015-07-23 | Uw Center For Commercialization | Systems for disrupting biological samples and associated devices and methods |
CN104930696B (en) * | 2015-07-13 | 2018-01-19 | 北京本立科技有限公司 | The agitating device of heating in a kind of electromagnetic induction |
US10701765B2 (en) | 2015-08-26 | 2020-06-30 | Bernard Robert McKellar | Flexible convertible hotplate adapter for rounded vessels and objects |
EP3241608B1 (en) * | 2016-05-02 | 2020-04-08 | Levitronix GmbH | Mixing device and disposable device for such a mixing device |
IT201600117248A1 (en) * | 2016-11-21 | 2018-05-21 | Lavazza Luigi Spa | Apparatus for preparing a foam from a liquid, in particular from milk or the like. |
JP7052993B2 (en) * | 2017-10-04 | 2022-04-12 | ヤヨイ化学工業株式会社 | mixer |
CN113459508B (en) * | 2021-07-08 | 2023-03-10 | 杭州电子科技大学 | Multichannel converging type biological printing nozzle |
US11751585B1 (en) | 2022-05-13 | 2023-09-12 | Sharkninja Operating Llc | Flavored beverage carbonation system |
WO2023216231A1 (en) | 2022-05-13 | 2023-11-16 | Sharkninja Operating Llc | Agitator for a carbonation system |
US11647860B1 (en) | 2022-05-13 | 2023-05-16 | Sharkninja Operating Llc | Flavored beverage carbonation system |
US11634314B1 (en) | 2022-11-17 | 2023-04-25 | Sharkninja Operating Llc | Dosing accuracy |
US11738988B1 (en) | 2022-11-17 | 2023-08-29 | Sharkninja Operating Llc | Ingredient container valve control |
US11745996B1 (en) | 2022-11-17 | 2023-09-05 | Sharkninja Operating Llc | Ingredient containers for use with beverage dispensers |
US11871867B1 (en) | 2023-03-22 | 2024-01-16 | Sharkninja Operating Llc | Additive container with bottom cover |
US11925287B1 (en) | 2023-03-22 | 2024-03-12 | Sharkninja Operating Llc | Additive container with inlet tube |
US11931704B1 (en) | 2023-06-16 | 2024-03-19 | Sharkninja Operating Llc | Carbonation chamber |
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DE1151246B (en) * | 1959-10-17 | 1963-07-11 | Dr Hans Fuhrmann | Stirring device |
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CH612855A5 (en) * | 1976-03-19 | 1979-08-31 | Tsing Dschen | Magnetic stirrer |
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JPS5523711A (en) * | 1978-07-29 | 1980-02-20 | Sony Corp | Rotary electric machine |
SU919723A1 (en) * | 1980-06-12 | 1982-04-15 | Восточно-Сибирский Научно-Исследовательский Институт Геологии,Геофизики И Минерального Сырья | Disperser |
FR2486820A1 (en) * | 1980-07-16 | 1982-01-22 | Charriere Jean | Mixing or propulsion chamber for one or more fluids - where rotor driven by electromagnetic induction is located on axis of mixing chamber inside ring stator of electric motor |
DE3106175A1 (en) * | 1981-02-19 | 1982-09-09 | Helmut Dipl.-Ing. 8990 Lindau Herz | Magnetic stirring device |
DE3320377A1 (en) * | 1983-06-06 | 1984-02-02 | Bernd Dipl.-Chem. 8750 Aschaffenburg Moog | Magnetic-field stirrer |
-
1984
- 1984-05-07 CH CH2204/84A patent/CH668919A5/en not_active IP Right Cessation
-
1985
- 1985-04-30 WO PCT/CH1985/000067 patent/WO1985005046A1/en active IP Right Grant
- 1985-04-30 DE DE8590060U patent/DE8590060U1/en not_active Expired
- 1985-04-30 US US06/834,325 patent/US4752138A/en not_active Expired - Fee Related
- 1985-04-30 DE DE85CH8500067T patent/DE3590188D2/en not_active Expired
- 1985-04-30 JP JP60501827A patent/JPS61502039A/en active Pending
- 1985-04-30 DE DE8585901951T patent/DE3567817D1/en not_active Expired
- 1985-04-30 EP EP85901951A patent/EP0179824B1/en not_active Expired
- 1985-04-30 AT AT85901951T patent/ATE40306T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8505046A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3567817D1 (en) | 1989-03-02 |
US4752138A (en) | 1988-06-21 |
ATE40306T1 (en) | 1989-02-15 |
EP0179824B1 (en) | 1989-01-25 |
JPS61502039A (en) | 1986-09-18 |
CH668919A5 (en) | 1989-02-15 |
DE8590060U1 (en) | 1986-07-10 |
DE3590188D2 (en) | 1986-04-03 |
WO1985005046A1 (en) | 1985-11-21 |
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