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DE102006014333A1 - Piston pump for cryogenic media, has cylinder housing, which is formed vacuum-tight, where piston partly consists of magnetic material and magnet is arranged in outer side of cylinder housing, which serves positioning of piston - Google Patents

Piston pump for cryogenic media, has cylinder housing, which is formed vacuum-tight, where piston partly consists of magnetic material and magnet is arranged in outer side of cylinder housing, which serves positioning of piston Download PDF

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Publication number
DE102006014333A1
DE102006014333A1 DE200610014333 DE102006014333A DE102006014333A1 DE 102006014333 A1 DE102006014333 A1 DE 102006014333A1 DE 200610014333 DE200610014333 DE 200610014333 DE 102006014333 A DE102006014333 A DE 102006014333A DE 102006014333 A1 DE102006014333 A1 DE 102006014333A1
Authority
DE
Germany
Prior art keywords
piston
cylinder housing
magnet
pump
tight
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Withdrawn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
DE200610014333
Other languages
German (de)
Inventor
Matthias Bohn
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Priority to DE200610014333 priority Critical patent/DE102006014333A1/en
Publication of DE102006014333A1 publication Critical patent/DE102006014333A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
    • F04B17/044—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow using solenoids directly actuating the piston

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The piston pump has a cylinder housing (1) and a piston movable in the housing. The cylinder housing is formed vacuum-tight (1'). The piston partly consists of a magnetic material and a magnet (4) is arranged in the outer side of the cylinder housing, which serves the positioning of the piston. The magnets arranged in the outer side of the cylinder housing are alterably formed in its position. The magnet is a ring magnet. Inlet lines and outlet lines of the pump are formed partly vacuum-tight.

Description

Die Erfindung betrifft eine Kolbenpumpe, insbesondere eine Kolbenpumpe für kryogene Medien, aufweisend ein Zylindergehäuse und einen in diesem bewegbaren Kolben.The The invention relates to a piston pump, in particular a piston pump for cryogenic Media, comprising a cylinder housing and a movable in this Piston.

Aus dem Stand der Technik sind eine Vielzahl gattungsgemäßer Kolbenpumpen bekannt. Werden derartige Kolbenpumpen zum Pumpen kryogener Medien, wie beispielsweise verflüssigter Wasserstoff, verflüssigter Sauerstoff, etc., verwendet, steht der Fachmann vor dem Problem, dass über die Pleuelstange sowie den Kolben ein nicht unerheblicher und unerwünschter Wärmeeintrag in das zu pumpende, kryogene Medium erfolgt.Out The prior art is a variety of generic piston pumps known. Are such piston pumps for pumping cryogenic media, such as liquefied Hydrogen, liquefied Oxygen, etc., the expert faces the problem that over the connecting rod and the piston a not inconsiderable and undesirable heat input takes place in the cryogenic medium to be pumped.

Aufgabe der vorliegenden Erfindung ist es, eine gattungsgemäße Pumpe anzugeben, die diesen Nachteil vermeidet.task The present invention is a generic pump indicate that avoids this disadvantage.

Zur Lösung dieser Aufgabe wird eine gattungsgemäße Pumpe vorgeschlagen, die dadurch gekennzeichnet, dass das Zylindergehäuse vakuumisoliert ausgebildet ist, der Kolben zumindest teilweise aus einem magnetischen Material besteht und außerhalb des Zylindergehäuses wenigstens ein Magnet angeordnet ist, der der Positionierung des Kolbens dient.to solution This object is a generic pump proposed that characterized in that the cylinder housing is formed vacuum-insulated is, the piston at least partially made of a magnetic material exists and outside of the cylinder housing at least one magnet is arranged, the positioning of the Piston serves.

Weitere vorteilhafte Ausgestaltungen der erfindungsgemäßen Pumpe, die Gegenstände der abhängigen Patentansprüche darstellen, sind dadurch gekennzeichnet, dass

  • – der oder die außerhalb des Zylindergehäuses angeordneten Magneten in seiner bzw. ihrer Position veränderbar ausgebildet sind,
  • – der Magnet ein Ringmagnet ist und
  • – die Zu- und Abführleitungen der Pumpe zumindest teilweise vakuumisoliert ausgebildet sind.
Further advantageous embodiments of the pump according to the invention, which constitute subject matters of the dependent claims, are characterized in that
  • The magnet or magnets arranged outside the cylinder housing are designed so that they can be changed in their position,
  • - The magnet is a ring magnet and
  • - The supply and discharge lines of the pump are at least partially vacuum-insulated.

Der Kern der vorbeschriebenen Erfindung bzw. erfindungsgemäßen Pumpe besteht nunmehr darin, dass der Kolben von dem Kolben-Antrieb vollständig mechanisch und damit auch thermisch entkoppelt ist. Ein Wärmeeintrag über die den Kolben antreibende Pleuelstange ist nunmehr nicht mehr gegeben.Of the Core of the above-described invention or pump according to the invention is now that the piston of the piston drive completely mechanical and thus also thermally decoupled. A heat input via the piston driving the Connecting rod is no longer available.

Die erfindungsgemäße Pumpe sowie weitere vorteilhafte Ausgestaltungen derselben, die Gegenstände der abhängigen Patentansprüche darstellen, seien im Folgenden anhand des in der Figur dargestellten Ausführungsbeispiels näher erläutert.The inventive pump and further advantageous embodiments thereof, the objects of dependent claims will be described below with reference to the figure shown in the figure embodiment explained in more detail.

Die Figur zeigt in schematisierten Form eine seitliche Schnittdarstellung durch eine mögliche Ausführungsform der erfindungsgemäßen Pumpe. Diese weist ein Zylindergehäuse 1 auf, dass erfindungsgemäß vakuumisoliert 1' ausgebildet ist. Der zumindest teilweise aus einem magnetischen Material bestehende Kolben 2 kann sich ohne Einschränkung innerhalb des Zylinderraumes 3/3' bewegen. Außerhalb des vakuumisoliert ausgebildeten Zylindergehäuses 1 ist ein Magnet 4 angeordnet, der in seiner Position veränderbar ausgebildet ist.The figure shows in schematic form a lateral sectional view through a possible embodiment of the pump according to the invention. This has a cylinder housing 1 on that according to the invention vacuum-insulated 1' is trained. The at least partially made of a magnetic material piston 2 can be without limitation within the cylinder space 3 / 3 ' move. Outside of the vacuum-insulated cylinder housing 1 is a magnet 4 arranged, which is formed changeable in its position.

Im Falle des in der Figur dargestellten Ausführungsbeispieles handelt es sich um einen Ringmagneten 4, der entlang des Zylindergehäuses 1 auf- und abbewegbar ausgebildet ist. Der Kolben 2 folgt dieser Auf- und Abwärtsbewegung des Ringmagneten 4, was zur Folge hat, dass das zu pumpende Medium in die Zylinderräume bzw. Zylinderraumbereiche 3 und 3' gesaugt bzw. aus diesen verdrängt wird.In the case of the embodiment shown in the figure, it is a ring magnet 4 that goes along the cylinder housing 1 is formed movable up and down. The piston 2 follows this upward and downward movement of the ring magnet 4 , which has the consequence that the medium to be pumped into the cylinder chambers or cylinder space areas 3 and 3 ' sucked or displaced from these.

So wird bei einer Aufwärtsbewegung des Kolbens 2 über die Leitung 5 kryogenes Medium in den Zylinderraumbereich 3 gesaugt, während gleichzeitig über die Leitung 6' kryogenes Medium aus dem Zylinderraum 3' verdrängt bzw. abgeführt wird. Im Falle der Abwärtsbewegung des Kolbens 2 wird kryogenes Medium über die Leitung 5' in den Zylinderraumbereich 3' gesaugt, während gleichzeitig über die Leitung 6 ein Verdrängen des kryogenen Mediums aus dem Zylinderraumbereich 3 erfolgt. Der Übersichtlichkeit halber sind in den Leitungen 5, 5', 6 und 6' die erforderlichen Ein- und Auslassventile und/oder die ggf. vorzusehenden Rückschlagventile nicht dargestellt.So will when an upward movement of the piston 2 over the line 5 cryogenic medium in the cylinder space area 3 sucked while at the same time over the line 6 ' cryogenic medium from the cylinder space 3 ' displaced or discharged. In case of downward movement of the piston 2 becomes cryogenic medium over the line 5 ' in the cylinder chamber area 3 ' sucked while at the same time over the line 6 a displacement of the cryogenic medium from the cylinder space area 3 he follows. For clarity, are in the lines 5 . 5 ' . 6 and 6 ' the required inlet and outlet valves and / or possibly provided check valves not shown.

In vorteilhafter Weise sind – entsprechend einer vorteilhaften Ausgestaltung der erfindungsgemäßen Pumpe – die Zu- und Abführleitungen der Pumpe zumindest teilweise vakuumisoliert ausgebildet.In Advantageous are - accordingly an advantageous embodiment of the pump according to the invention - the Zu- and discharge lines the pump formed at least partially vacuum-insulated.

Hierbei sind vorzugsweise zumindest die unmittelbar an das Zylindergehäuse 1 angrenzenden Leitungsbereiche 5, 5', 6 und 6' vakuumisoliert ausgebildet. Mittels dieser Ausgestaltung der erfindungsgemäßen Pumpe wird der Wärmeeintrag in das zu pumpende Medium weiter verringert.These are preferably at least directly to the cylinder housing 1 adjacent line areas 5 . 5 ' . 6 and 6 ' vacuum insulated trained. By means of this embodiment of the pump according to the invention, the heat input into the medium to be pumped is further reduced.

Anstelle des in der Figur dargestellten Ringmagnets 4 sind weitere Konstruktionen denkbar, bei denen mittels eines oder mehrerer Magnete eine Bewegung des Kolbens 2 realisiert wird. So kann beispielsweise an den beiden Stirnseiten des Zylindergehäuses 1 jeweils wenigstens ein Magnet vorgesehen werden, wobei durch ein abwechselndes Aktivieren und Deaktivieren dieser Magneten eine Auf- und Abwärtsbewegung des Kolbens 2 innerhalb des vakuumisoliert ausgebildeten Zylindergehäuses 1 realisiert wird.Instead of the ring magnet shown in the figure 4 Further constructions are conceivable in which by means of one or more magnets, a movement of the piston 2 is realized. For example, at the two end faces of the cylinder housing 1 in each case at least one magnet can be provided, wherein by an alternating activation and deactivation of these magnets an up and down movement of the piston 2 within the vacuum-insulated cylinder housing 1 is realized.

Die erfindungsgemäße Pumpe ermöglicht die Realisierung einer sog. eigensicheren Ausführung. Über die Auslegung der Magnetkraft bzw. -kräfte kann ein Überschreiten des konstruktiv festgelegten Maximaldruckes verhindert werden, da dann die Mitnahme des Kolbens durch den oder die Magnete nicht mehr möglich ist. Die Förderung des zu pumpenden Mediums wird daher so lange unterbrochen, bis der festgelegte Maximaldruck wieder unterschritten ist.The pump according to the invention makes it possible to realize a so-called intrinsically safe design. About the interpretation of the magnetic force or forces exceeding the constructive maximum pressure can be prevented, since then the Driving the piston through the magnet or magnets is no longer possible. The promotion of the medium to be pumped is therefore interrupted until the specified maximum pressure is again fallen below.

Claims (4)

Kolbenpumpe, insbesondere Kolbenpumpe für kryogene Medien, aufweisend ein Zylindergehäuse und einen in diesem bewegbaren Kolben, dadurch gekennzeichnet, dass das Zylindergehäuse (1) vakuumisoliert (1') ausgebildet ist, der Kolben (2) zumindest teilweise aus einem magnetischen Material besteht und außerhalb des Zylindergehäuses (1) wenigstens ein Magnet (4) angeordnet ist, der der Positionierung des Kolbens (2) dient.Piston pump, in particular piston pump for cryogenic media, comprising a cylinder housing and a piston movable in this, characterized in that the cylinder housing ( 1 ) vacuum insulated ( 1' ) is formed, the piston ( 2 ) consists at least partially of a magnetic material and outside of the cylinder housing ( 1 ) at least one magnet ( 4 ), the positioning of the piston ( 2 ) serves. Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass der oder die außerhalb des Zylindergehäuses (1) angeordneten Magneten (4) in seiner bzw. ihrer Position veränderbar ausgebildet sind.Pump according to claim 1, characterized in that the outside or the outside of the cylinder housing ( 1 ) arranged magnets ( 4 ) are formed changeable in his or her position. Pumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Magnet ein Ringmagnet (4) ist.Pump according to claim 1 or 2, characterized in that the magnet is a ring magnet ( 4 ). Pumpe nach einem der vorhergehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Zu- und Abführleitungen der Pumpe zumindest teilweise vakuumisoliert ausgebildet sind.Pump according to one of the preceding claims 1 to 3, characterized in that the supply and discharge of the pump at least partially formed vacuum insulated.
DE200610014333 2006-03-28 2006-03-28 Piston pump for cryogenic media, has cylinder housing, which is formed vacuum-tight, where piston partly consists of magnetic material and magnet is arranged in outer side of cylinder housing, which serves positioning of piston Withdrawn DE102006014333A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200610014333 DE102006014333A1 (en) 2006-03-28 2006-03-28 Piston pump for cryogenic media, has cylinder housing, which is formed vacuum-tight, where piston partly consists of magnetic material and magnet is arranged in outer side of cylinder housing, which serves positioning of piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610014333 DE102006014333A1 (en) 2006-03-28 2006-03-28 Piston pump for cryogenic media, has cylinder housing, which is formed vacuum-tight, where piston partly consists of magnetic material and magnet is arranged in outer side of cylinder housing, which serves positioning of piston

Publications (1)

Publication Number Publication Date
DE102006014333A1 true DE102006014333A1 (en) 2007-10-04

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Application Number Title Priority Date Filing Date
DE200610014333 Withdrawn DE102006014333A1 (en) 2006-03-28 2006-03-28 Piston pump for cryogenic media, has cylinder housing, which is formed vacuum-tight, where piston partly consists of magnetic material and magnet is arranged in outer side of cylinder housing, which serves positioning of piston

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535585A1 (en) * 2011-06-18 2012-12-19 Magna Steyr Fahrzeugtechnik AG & Co KG Pump for conveying a cryogenic fluid
WO2014151315A1 (en) * 2013-03-15 2014-09-25 Delaware Capital Formation, Inc. Seal-less piston pump for liquefied gas
CN106744477A (en) * 2016-11-30 2017-05-31 合肥瑞硕科技有限公司 The device of object up-down in a kind of driving airtight cavity
DE102019106511A1 (en) * 2019-03-14 2020-09-17 Olympus Winter & Ibe Gmbh Thermally driven fluid pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535585A1 (en) * 2011-06-18 2012-12-19 Magna Steyr Fahrzeugtechnik AG & Co KG Pump for conveying a cryogenic fluid
DE102011104546A1 (en) * 2011-06-18 2012-12-20 Magna Steyr Fahrzeugtechnik Ag & Co. Kg Pump for conveying a cryogenic fluid
CN102852759A (en) * 2011-06-18 2013-01-02 马格纳斯泰尔汽车技术两合公司 Pump for conveying cryogenic fluid
DE102011104546B4 (en) * 2011-06-18 2013-05-29 Magna Steyr Fahrzeugtechnik Ag & Co. Kg Pump for conveying a cryogenic fluid
RU2509229C1 (en) * 2011-06-18 2014-03-10 Магна Штейр Фарцойгтехник Аг Унд Ко Кг Pump for cryogenic fluid
WO2014151315A1 (en) * 2013-03-15 2014-09-25 Delaware Capital Formation, Inc. Seal-less piston pump for liquefied gas
CN106744477A (en) * 2016-11-30 2017-05-31 合肥瑞硕科技有限公司 The device of object up-down in a kind of driving airtight cavity
DE102019106511A1 (en) * 2019-03-14 2020-09-17 Olympus Winter & Ibe Gmbh Thermally driven fluid pump

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: LINDE AG, 80807 MUENCHEN, DE

8139 Disposal/non-payment of the annual fee