DE102009052856B3 - Pump i.e. screw pump, has magnetic clutch provided with rotor shaft that is rotatably supported by pump housing, and suction chamber and slit pot connected with each other over line by fluid - Google Patents
Pump i.e. screw pump, has magnetic clutch provided with rotor shaft that is rotatably supported by pump housing, and suction chamber and slit pot connected with each other over line by fluid Download PDFInfo
- Publication number
- DE102009052856B3 DE102009052856B3 DE102009052856A DE102009052856A DE102009052856B3 DE 102009052856 B3 DE102009052856 B3 DE 102009052856B3 DE 102009052856 A DE102009052856 A DE 102009052856A DE 102009052856 A DE102009052856 A DE 102009052856A DE 102009052856 B3 DE102009052856 B3 DE 102009052856B3
- Authority
- DE
- Germany
- Prior art keywords
- pump
- fluid
- rotor
- rotor shaft
- pump according
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0069—Magnetic couplings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0096—Heating; Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw 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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/027—Details of the magnetic circuit
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Pumpe mit einer Magnetkupplung, umfassend eine in einem Pumpengehäuse drehbar gelagerte Rotorwelle, die ein Laufrad oder eine Spindel zum Fördern eines Fluids von einem Saugraum in einen Druckraum sowie einen in einem von dem Fluid durchströmten Spalttopf angeordneten Rotor mit einem Innenmagnet trägt, der über das magnetische Feld eines Außenmagnets in Drehung versetzbar ist.The The invention relates to a pump with a magnetic coupling comprising one in a pump housing rotatably mounted rotor shaft, which is an impeller or a spindle to promote a fluid from a suction chamber in a pressure chamber and a in a flowed through by the fluid Sheathing shell arranged rotor carries with an inner magnet, which over the magnetic field of an outside magnet is in rotation displaceable.
Bei herkömmlichen Pumpen muss besondere Aufmerksamkeit auf die Abdichtung der Antriebswelle gelegt werden, um das Austreten des geförderten Fluids zu vermeiden oder auf ein Minimum zu begrenzen. Die zu diesem Zweck eingesetzten dynamischen Dichtungen, die beispielsweise als Gleitringdichtungen ausgebildet sein können, sind allerdings Verschleißteile, die einen Wartungsaufwand verursachen. Um diesen Nachteil zu vermeiden, werden zum Pumpen von gefährlichen oder aggressiven Fluiden, die nicht in die Umgebung gelangen dürfen, Pumpen mit Spaltrotormotor oder Pumpen mit permanentmagnetischer Zentraldrehkupplung (Magnetkupplung) verwendet. Diese Pumpen weisen den Vorteil auf, dass keine dynamische Dichtung vorhanden ist.at usual Pumps must pay special attention to the sealing of the drive shaft be placed to prevent the escape of the pumped fluid or to limit to a minimum. The ones used for this purpose dynamic seals, for example, as mechanical seals can be trained are however wearing parts, which cause a maintenance effort. To avoid this disadvantage, Be used for pumping dangerous or aggressive fluids that can not get into the environment, pumps with Split rotor motor or pumps with permanent magnetic central rotary coupling (Magnetic coupling) used. These pumps have the advantage that no dynamic seal is present.
Die
Der Erfindung liegt daher die Aufgabe zugrunde, eine Pumpe mit einer Magnetkupplung anzugeben, bei der die auf die Rotorwelle wirkende Axialkraft verringert ist.Of the Invention is therefore based on the object, a pump with a Specify magnetic coupling, in which acting on the rotor shaft Axial force is reduced.
Zur Lösung dieser Aufgabe ist bei einer Pumpe mit einer Magnetkupplung der eingangs genannten Art erfindungsgemäß vorgesehen, dass der Saugraum und der Spalttopf über eine von dem Fluid durchströmbare Leitung miteinander verbunden sind.to solution This object is in a pump with a magnetic coupling of The aforementioned type according to the invention provided that the suction chamber and the containment shell over one of the fluid can flow through Line are connected together.
Durch die erfindungsgemäß vorgesehene Leitung, die den Spalttopf mit dem Saugraum verbindet, wird verhindert, dass eine nennenswerte auf die Rotorwelle einwirkende Axialkraft entsteht. Die Herstellung der erfindungsgemäßen Pumpe wird erleichtert, da die Rotorwelle ohne Längsbohrung hergestellt werden kann. Das Fluid strömt stattdessen durch die Leitung zurück, die den Saugraum mit dem Spalttopf verbindet und die innerhalb oder außerhalb des Pumpengehäuses angeordnet sein kann.By the pipe provided according to the invention, which connects the containment shell to the suction chamber, prevents an appreciable axial force acting on the rotor shaft is produced. The preparation of the pump according to the invention is facilitated because the rotor shaft without longitudinal bore can be produced. The fluid flows through the line instead back, which connects the suction chamber with the containment shell and the inside or outside the pump housing can be arranged.
Bei der erfindungsgemäßen Pumpe kann es vorgesehen sein, dass die zum Spalttopf führende Leitung in einem zwischen dem Pumpengehäuse und dem Spalttopf angeordneten Deckel mündet. Der Deckel befindet sich somit zwischen dem Pumpengehäuse und dem Spalttopf, die den Saugraum und den Spalttopf verbindende Leitung kann zumindest teilweise in dem Deckel geführt sein.at the pump according to the invention it can be provided that the leading to the gap pot line in one between the pump housing and the can arranged lid opens. The lid is located thus between the pump housing and the containment shell connecting the suction space and the containment shell Line may be at least partially guided in the lid.
Vorzugsweise weist der zwischen dem Druckraum und dem Spalttopf angeordnete Deckel bei der erfindungsgemäßen Pumpe eine Öffnung auf, die als Blende ausgebildet sein kann. Durch den höheren Druck im Druckraum im Vergleich zum Spalttopf, in dem im Wesentlichen der Druck des Druckraums herrscht, entsteht ein Fluidstrom von dem Druckraum in den Spalttopf, der die Magnetkupplung in dem Spalttopf und insbesondere deren Rotor kühlt.Preferably has the arranged between the pressure chamber and the containment shell lid the pump according to the invention an opening on, which can be designed as a diaphragm. Due to the higher pressure in the pressure chamber compared to the containment shell, in which substantially the pressure of the pressure chamber prevails, creates a fluid flow from the pressure chamber in the containment shell, the magnetic coupling in the containment shell and in particular whose rotor cools.
Gemäß einer Weiterbildung der Erfindung kann es vorgesehen sein, dass die Öffnung in dem Deckel in einen Spalt zwischen der Außenseite des Rotors und der Innenseite des Spalttopfes mündet. Dadurch wird der Rotor an seiner Außenseite praktisch vollständig von dem Fluid umströmt, wodurch die beim Betrieb der Magnetkupplung entstehende Wärme abgeführt wird.According to one embodiment of the invention, it may be provided that the opening in the lid opens into a gap between the outside of the rotor and the inside of the gap pot. As a result, the rotor is prak on its outside Completely flows around the fluid from the table, whereby the heat generated during operation of the magnetic coupling is dissipated.
Um den bereits erwähnten Effekt zu erzielen, dass auf die Rotorwelle nahezu keine axiale Kraft ausgeübt wird, kann es erfindungsgemäß vorgesehen sein, dass die Größe und die Form des Spalts so gewählt sind, dass das Fluid nach dem Durchströmen des Spalts im Wesentlichen auf den Druck im Saugraum entspannt ist.Around the already mentioned Effect to achieve that on the rotor shaft almost no axial Power exercised is, it can be provided according to the invention be that size and that Shape of the gap so chosen are that the fluid after flowing through the gap substantially is relaxed to the pressure in the suction chamber.
Eine noch bessere und besonders gleichmäßige Kühlung der Magnetkupplung ergibt sich, wenn der Rotor der erfindungsgemäßen Pumpe mehrere in Umfangsrichtung verteilt angeordnete, von dem Fluid durchströmbare Öffnungen aufweist. Nach dem Durchströmen der Öffnungen gelangt das Fluid durch die Leitung wieder zurück in den Saugraum.A gives even better and more even cooling of the magnetic coupling when the rotor of the pump according to the invention several in the circumferential direction having arranged distributed, can flow through the fluid openings. After flowing through the openings the fluid returns through the line back into the suction chamber.
Es liegt auch im Rahmen der Erfindung, dass zwischen dem Deckel und dem Rotor ein Dichtspalt gebildet ist. Dieser Dichtspalt verhindert, dass eine nennenswerte Menge des Fluids von der Öffnung direkt in den Bereich der Rotorwelle fließt, stattdessen wird das Fluid an der Außenseite des Rotors vorbei geführt, sodass die gewünschte Kühlwirkung der Magnetkupplung erzielt wird.It is also within the scope of the invention that between the lid and the rotor is formed a sealing gap. This sealing gap prevents that a significant amount of the fluid from the opening directly into the area the rotor shaft flows, instead, the fluid is guided past the outside of the rotor, so that the desired cooling effect the magnetic coupling is achieved.
Die erfindungsgemäße Pumpe kann insbesondere als Schraubenspindelpumpe ausgebildet sein.The inventive pump can be designed in particular as a screw pump.
Weitere Vorteile und Einzelheiten der Erfindung werden nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnungen erläutert. Die Zeichnungen sind schematische Darstellungen, in denen die Pfeile jeweils die Strömungsrichtung des Fluids angeben, und zeigen:Further Advantages and details of the invention are described below an embodiment explained with reference to the drawings. The drawings are schematic representations in which the arrows in each case the flow direction indicate the fluid and show:
Die
in
Der
Deckel
Nachdem
das Fluid den Rotor
Wie
in
Um
den Einfluss der Viskosität
des geförderten
Fluids auf die Kühlstrommenge
auszugleichen, ist die Öffnung
Die
in
Claims (9)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009052856A DE102009052856B3 (en) | 2009-11-11 | 2009-11-11 | Pump i.e. screw pump, has magnetic clutch provided with rotor shaft that is rotatably supported by pump housing, and suction chamber and slit pot connected with each other over line by fluid |
ES10190314T ES2796658T3 (en) | 2009-11-11 | 2010-11-08 | Pump with magnetic coupling |
EP10190314.4A EP2322803B1 (en) | 2009-11-11 | 2010-11-08 | Pump with a magnetic coupling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009052856A DE102009052856B3 (en) | 2009-11-11 | 2009-11-11 | Pump i.e. screw pump, has magnetic clutch provided with rotor shaft that is rotatably supported by pump housing, and suction chamber and slit pot connected with each other over line by fluid |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009052856B3 true DE102009052856B3 (en) | 2010-09-09 |
Family
ID=42538772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009052856A Expired - Fee Related DE102009052856B3 (en) | 2009-11-11 | 2009-11-11 | Pump i.e. screw pump, has magnetic clutch provided with rotor shaft that is rotatably supported by pump housing, and suction chamber and slit pot connected with each other over line by fluid |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2322803B1 (en) |
DE (1) | DE102009052856B3 (en) |
ES (1) | ES2796658T3 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013206141A1 (en) | 2013-04-08 | 2014-10-09 | Schaeffler Technologies Gmbh & Co. Kg | Media-lubricated rolling bearing |
WO2018078073A1 (en) * | 2016-10-27 | 2018-05-03 | Klaus Union Gmbh & Co. Kg | Horizontally split screw-spindle pump |
EP3567333A1 (en) * | 2018-05-09 | 2019-11-13 | Linde Aktiengesellschaft | Drive device for a cleaning device for a heat exchanger |
DE102018113950A1 (en) | 2018-06-12 | 2019-12-12 | Geomar Helmholtz-Zentrum Für Ozeanforschung Kiel | Device for non-contact transmission of rotational movements |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021133106A1 (en) * | 2021-12-14 | 2023-06-15 | Leistritz Pumpen Gmbh | screw pump |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0398175A1 (en) * | 1989-05-13 | 1990-11-22 | RHEINHÜTTE GMBH & CO. | Magnetically coupled pump |
EP0802610A2 (en) * | 1996-03-18 | 1997-10-22 | Ebara Corporation | High temperature motor pump and method for operating thereof |
DE10024953A1 (en) * | 2000-05-22 | 2001-11-29 | Richter Chemie Tech Itt Gmbh | Centrifugal pump with magnetic coupling |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5165868A (en) * | 1991-04-29 | 1992-11-24 | Tuthill Corporation | Magnetically driven pump |
US5763973A (en) * | 1996-10-30 | 1998-06-09 | Imo Industries, Inc. | Composite barrier can for a magnetic coupling |
US20040105768A1 (en) * | 2002-11-27 | 2004-06-03 | Cameron Donald B. | Internal recirculation for magnetically coupled positive displacement pumps |
-
2009
- 2009-11-11 DE DE102009052856A patent/DE102009052856B3/en not_active Expired - Fee Related
-
2010
- 2010-11-08 ES ES10190314T patent/ES2796658T3/en active Active
- 2010-11-08 EP EP10190314.4A patent/EP2322803B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0398175A1 (en) * | 1989-05-13 | 1990-11-22 | RHEINHÜTTE GMBH & CO. | Magnetically coupled pump |
EP0802610A2 (en) * | 1996-03-18 | 1997-10-22 | Ebara Corporation | High temperature motor pump and method for operating thereof |
DE10024953A1 (en) * | 2000-05-22 | 2001-11-29 | Richter Chemie Tech Itt Gmbh | Centrifugal pump with magnetic coupling |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013206141A1 (en) | 2013-04-08 | 2014-10-09 | Schaeffler Technologies Gmbh & Co. Kg | Media-lubricated rolling bearing |
WO2014166487A1 (en) | 2013-04-08 | 2014-10-16 | Schaeffler Technologies Gmbh & Co. Kg | Medium-lubricated rolling bearing |
WO2018078073A1 (en) * | 2016-10-27 | 2018-05-03 | Klaus Union Gmbh & Co. Kg | Horizontally split screw-spindle pump |
US11530699B2 (en) | 2016-10-27 | 2022-12-20 | Klaus Union Gmbh & Co. Kg | Horizontally split screw-spindle pump |
EP3567333A1 (en) * | 2018-05-09 | 2019-11-13 | Linde Aktiengesellschaft | Drive device for a cleaning device for a heat exchanger |
WO2019214850A1 (en) * | 2018-05-09 | 2019-11-14 | Linde Aktiengesellschaft | Drive apparatus for a cleaning apparatus for a heat exchanger |
DE102018113950A1 (en) | 2018-06-12 | 2019-12-12 | Geomar Helmholtz-Zentrum Für Ozeanforschung Kiel | Device for non-contact transmission of rotational movements |
Also Published As
Publication number | Publication date |
---|---|
EP2322803A2 (en) | 2011-05-18 |
EP2322803A3 (en) | 2014-09-03 |
EP2322803B1 (en) | 2020-05-06 |
ES2796658T3 (en) | 2020-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R081 | Change of applicant/patentee |
Owner name: LEISTRITZ PUMPEN GMBH, DE Free format text: FORMER OWNER: LEISTRITZ AG, 90459 NUERNBERG, DE Effective date: 20110516 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |