DE202012012359U1 - Pumping station for pumping light gases - Google Patents
Pumping station for pumping light gases Download PDFInfo
- Publication number
- DE202012012359U1 DE202012012359U1 DE202012012359.9U DE202012012359U DE202012012359U1 DE 202012012359 U1 DE202012012359 U1 DE 202012012359U1 DE 202012012359 U DE202012012359 U DE 202012012359U DE 202012012359 U1 DE202012012359 U1 DE 202012012359U1
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- pump
- dry
- compressing
- pumping station
- pumping
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- 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
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
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- 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
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
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- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
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- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
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- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
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- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids 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
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids 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
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- 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
- F04C2210/00—Fluid
- F04C2210/10—Fluid working
- F04C2210/105—Helium (He)
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- 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
- F04C2210/00—Fluid
- F04C2210/22—Fluid gaseous, i.e. compressible
- F04C2210/224—Hydrogen (H2)
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- 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
- F04C2220/00—Application
- F04C2220/10—Vacuum
- F04C2220/12—Dry running
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Pumpstand zum Pumpen leichter Gase, mit einer mit der zu evakuierenden Kammer verbundenen ersten trockenverdichtenden Pumpe (12) und einer mit der ersten trockenverdichtenden Pumpe (12) verbundenen zweiten trockenverdichtenden Pumpe (14), dadurch gekennzeichnet, dass die trockenverdichtenden Pumpen (12, 14) gegenüber der Umgebung hermetisch dicht sind.Pumping station for pumping light gases, with a first dry-compressing pump (12) connected to the chamber to be evacuated and a second dry-compressing pump (14) connected to the first dry-compressing pump (12), characterized in that the dry-compressing pumps (12, 14) are hermetically sealed from the environment.
Description
Die Erfindung betrifft einen Pumpstand zum Pumpen leichter Gase, wie Helium, Wasserstoff oder deren Isotope.The invention relates to a pumping station for pumping light gases, such as helium, hydrogen or their isotopes.
Beim Pumpen leichter Gase besteht die Problematik, dass diese Gase aufgrund der innerhalb der Pumpe bestehenden Undichtigkeiten zurückströmen. Beispielsweise weisen Schraubenpumpen zwischen dem schraubenförmigen Pumpelement und dem Gehäuse einen Spalt auf, durch den leichtes Gas zurückströmen kann. Um das Rückströmen leichter Gase zu verringern, ist es bekannt, den zu pumpenden leichten Gasen ein Purgegas beizumischen. Desweiteren ist es bekannt, die innere Dichtigkeit der Pumpen dadurch zu erhöhen, dass Fluide wie Öle zur inneren Abdichtung verwendet werden. Sowohl das Verwenden von Purgegasen als auch das Verwenden ölgedichteter Pumpen weist den Nachteil auf, dass die gepumpten leichten Gase verunreinigt werden. Dies hat zur Folge, dass die Gase aufwendig gereinigt werden müssen. Eine entsprechende Reinigung ist technisch schwierig und teuer. Dies ist insbesondere nachteilig, wenn die gepumpten leichten Gase in einem Kreislauf verwendet werden und bspw. einem Herstellungsprozess wieder zugeführt werden sollen. Hierbei können bereits geringe Verunreinigungen der entsprechenden leichten Gase zu schädlichen Veränderungen im Prozess führen. Beispielsweise ist beim Fördern des leichten Gases Tritium in Kernfusionsexperimenten bereits eine geringe Verunreinigung schädlich.When pumping light gases there is the problem that these gases flow back due to the existing within the pump leaks. For example, screw pumps between the helical pumping element and the housing have a gap through which light gas can flow back. In order to reduce the backflow of light gases, it is known to mix a purge gas to the light gases to be pumped. Furthermore, it is known to increase the internal tightness of the pumps by using fluids such as oils for internal sealing. Both the use of purge gases and the use of oil-sealed pumps has the disadvantage of contaminating the pumped light gases. This has the consequence that the gases must be cleaned consuming. A corresponding cleaning is technically difficult and expensive. This is particularly disadvantageous if the pumped light gases are used in a cycle and, for example, a manufacturing process to be supplied again. Even slight contamination of the corresponding light gases can lead to harmful changes in the process. For example, in conveying the light gas tritium in nuclear fusion experiments, even a slight contamination is harmful.
Aufgabe der Erfindung ist es einen Pumpstand zum Pumpen leichter Gase zu schaffen, mit dem ein Verunreinigen der leichten Gase bei einer gleichzeitigen Erzielung hoher Saugvermögen bei kleinen Einlassdrücken realisiert ist. Insbesondere ist es Aufgabe der Erfindung einen Pumpstand zum Pumpen leichter Gase zu schaffen, mit dem in einer zu evakuierenden Kammer Drücke von weniger als 100 mbar erzielt werden können. Insbesondere ist es Aufgabe der Erfindung ein ausreichendes Saugvermögen bei Einlassdrücken von 100 bis 0,1 mbar zu erzielen.The object of the invention is to provide a pumping station for pumping light gases, with which a pollution of the light gases is realized while simultaneously achieving high pumping speeds at low inlet pressures. In particular, it is an object of the invention to provide a pumping station for pumping light gases, with which in a chamber to be evacuated pressures of less than 100 mbar can be achieved. In particular, it is an object of the invention to achieve a sufficient pumping speed at inlet pressures of 100 to 0.1 mbar.
Die Lösung der Aufgabe erfolgt erfindungsgemäß durch die Merkmale des Anspruchs 1.The object is achieved according to the invention by the features of claim 1.
Der erfindungsgemäße Pumpstand zum Pumpen leichter Gase weist eine erste trockenverdichtende Pumpe auf. Ein Einlass der ersten Pumpe ist vorzugsweise unmittelbar mit einer zu evakuierenden Kammer bzw. einem Rezipienten verbunden. Mit der ersten trockenverdichtenden Pumpe, d. h. insbesondere einem Auslass zur ersten trockenverdichtenden Pumpe ist eine zweite trockenverdichtende Pumpe, insbesondere unmittelbar verbunden. Bei trockenverdichtenden Pumpen handelt es sich insbesondere um Schrauben- oder Rootspumpen, wobei die erforderliche Dichtigkeit dieser Pumpen nicht durch Öl oder dergleichen, sondern aufgrund einer hohen präzisen Herstellung realisiert ist. Um in der zu evakuierenden Kammer bzw. dem Rezipienten erfindungsgemäß niedrige Prozessdrücke von insbesondere weniger als 100 mbar erzielen zu können und hierbei zusätzlich das Verunreinigen der gepumpten leichten Gase durch Purgegas oder ölgedichtete Pumpen zu vermeiden, sind erfindungsgemäß die trockenverdichtenden Pumpen gegenüber der Umgebung hermetisch dicht ausgebildet. Eine hermetische Abdichtung ist hierbei definiert als eine räumliche Trennung der Gasmischung innerhalb der Vakuumpumpe von derjenigen außerhalb der Vakuumpumpe. Über Dichtungen wird verhindert, dass Umgebungsgase das zu pumpende Gasgemisch in einer Art Verunreinigungen, dass sie die Applikation signifikant beeinflussen.The pumping station according to the invention for pumping light gases has a first dry-compressing pump. An inlet of the first pump is preferably connected directly to a chamber or a recipient to be evacuated. With the first dry compacting pump, d. H. in particular an outlet to the first dry-compressing pump, a second dry-compressing pump, in particular directly connected. In dry compressing pumps are in particular screw or Roots pumps, the required tightness of these pumps is not realized by oil or the like, but due to a high precision manufacturing. In order to be able to achieve low process pressures of, in particular, less than 100 mbar in the chamber or recipient to be evacuated, and additionally to avoid contaminating the pumped light gases with purge gas or oil-sealed pumps, the dry-compressing pumps are hermetically sealed from the environment , A hermetic seal is defined here as a spatial separation of the gas mixture within the vacuum pump from that outside the vacuum pump. Gaskets prevent ambient gases from pumping the gaseous mixture into a kind of impurities that significantly affect the application.
Bei einer besonders bevorzugten Ausführungsform ist parallel zu der ersten trockenverdichtenden Pumpe eine weitere, dritte trockenverdichtende Pumpe angeordnet. Diese ist ebenfalls mit der zu evakuierenden Kammer bzw. dem Rezipienten verbunden. Vorzugsweise sind die beiden zueinander parallel angeordneten trockenverdichtenden Schraubenpumpen sodann gemeinsam mit der zweiten nachgeordneten trockenverdichtenden Schraubenpumpe verbunden. Vorzugsweise sind die beiden Auslässe der ersten und dritten trockenverdichtenden Pumpe zusammengeführt und gemeinsam mit dem Einlass der zweiten trockenverdichtenden Schraubenpumpe verbunden. Durch eine derartige Anordnung von drei trockenverdichtenden Schraubenpumpen ist es möglich das Gesamtsaugvermögen bei niedrigeren Drücken kleiner 100 bar weiter zu steigern.In a particularly preferred embodiment, a further, third dry-compressing pump is arranged parallel to the first dry-compressing pump. This is also connected to the evacuated chamber or the recipient. Preferably, the two dry-compressing screw pumps arranged parallel to one another are then connected together to the second downstream dry-compressing screw pump. Preferably, the two outlets of the first and third dry compressing pumps are brought together and connected in common with the inlet of the second dry compressing screw pump. Such an arrangement of three dry-compressing screw pumps makes it possible to further increase the total absorbency at lower pressures of less than 100 bar.
Bei einer alternativen Ausführungsform sind drei trockenverdichtenden Pumpen in Reihe hintereinander angeordnet, sodass die zweite trockenverdichtende Pumpe unmittelbar mit einer weiteren trockenverdichtenden Pumpe verbunden ist. Hierdurch können in dem Rezipienten auch ohne Einsatz ölgedichteter Pumpen sowie auch ohne den Einsatz von Purgegas hohe Saugvermögen bei niedrigen Drücken kleiner 100 mbar insbesondere für Wasserstoff und Wasserstoff-Isotope realisiert werden.In an alternative embodiment, three dry compressing pumps are arranged in series one behind the other so that the second dry compacting pump is directly connected to another dry compacting pump. As a result, high absorbency at low pressures of less than 100 mbar, in particular for hydrogen and hydrogen isotopes, can be achieved in the recipient even without the use of oil-sealed pumps and also without the use of purge gas.
Selbstverständlich ist es auch möglich, zwei trockenverdichtende Pumpen parallel zu schalten und sodann in Pumprichtung in Reihe zwei weitere trockenverdichtende Pumpen vorzusehen. Bei einer derartigen Anordnung von insgesamt vier trockenverdichtenden Pumpen können sehr große Saugvermögen bei niedrigen Drücken kleiner 100 mbar insbesondere für Wasserstoff und Wasserstoff-Isotope realisiert werden.Of course, it is also possible to connect two dry-compressing pumps in parallel and then to provide in the pumping direction in series two more dry-compressing pumps. With such an arrangement of a total of four dry-compacting pumps, very high pumping speeds can be achieved at low pressures of less than 100 mbar, in particular for hydrogen and hydrogen isotopes.
Zur weiteren Verringerung der erzielbaren Drücke in dem Rezipienten kann mit der in Pumprichtung letzten trockenverdichtenden Pumpe, d. h. je nach Ausführungsform der zweiten oder vierten vorgesehenen trockenverdichtenden Pumpe, eine gegen Atmosphäre pumpende Vorvakuumpumpe vorgesehen sein. Bei der Vorvakuumpumpe handelt es sich bspw. um eine trockene Verdrängervakuumpumpe, insbesondere eine Roots- Klauen-, Kolben- und/oder Schraubenpumpe. Die Vorvakuumpumpe ist erfindungsgemäß als trockenverdichtende Pumpe ausgebildet, um ein Verunreinigen der zu pumpenden leichten Gase zu vermeiden.To further reduce the achievable pressures in the recipient may be with the last dry-compressing in the pumping direction, d. H. depending on the embodiment of the second or fourth provided dry-compressing pump, a forevacuum pump pumping against the atmosphere may be provided. The backing pump is, for example, a dry positive displacement vacuum pump, in particular a Roots claw, piston and / or screw pump. The backing pump according to the invention is designed as a dry-compressing pump in order to avoid contamination of the light gases to be pumped.
Insbesondere durch das erfindungsgemäße Vorsehen ausschließlich trockenverdichtender Pumpen und aufgrund des Verzichts auf den Einsatz von Purgegas, ist es aufgrund des Einsatzes von gegenüber der Umgebung hermetisch dichten Pumpen möglich, leichte Gase mit hoher Effizienz zur Erzielung niedriger Prozessdrücke in dem Rezipienten zu pumpen. Da das Gas nicht verunreinigt wird, ist ein aufwendiges Reinigen vermieden, sodass es insbesondere möglich ist, das gepumpte Gas bspw. in einem Kreislaufsystem wiederzuverwenden.In particular, by providing only dry-compressing pumps according to the invention and dispensing with the use of purge gas, it is possible to pump light gases with high efficiency to achieve low process pressures in the recipient due to the use of hermetically sealed pumps. Since the gas is not contaminated, a complex cleaning is avoided, so that it is particularly possible to reuse the pumped gas, for example, in a circulatory system.
Je nach Ausführungsform ist es bevorzugt, dass die erste und/oder die dritte Pumpe unmittelbar mit der zu evakuierenden Kammer bzw. dem Rezipienten verbunden ist. Desweiteren ist es je nach Ausführungsform bevorzugt, dass die zweite Pumpe unmittelbar mit der ersten und/oder dritten Pumpe verbunden ist. Desweiteren ist es bevorzugt, dass sämtliche eingesetzten trockenverdichtenden Pumpen als Schraubenpumpen ausgebildet sind.Depending on the embodiment, it is preferred that the first and / or the third pump is connected directly to the chamber or the recipient to be evacuated. Furthermore, it is preferred depending on the embodiment that the second pump is connected directly to the first and / or third pump. Furthermore, it is preferred that all dry-compressing pumps used are designed as screw pumps.
Besonders bevorzugt ist es, dass der gesamte Pumpstand ein nach außen hermetisch dichtes System bildet.It is particularly preferred that the entire pumping station form a hermetically sealed system to the outside.
Mit Hilfe des erfindungsgemäßen Pumpstandes ist es auf sehr effiziente Weise möglich, leichte Gase zu pumpen, wobei hierbei ein Verunreinigen der Gase vermieden ist. Bei den leichten Gasen handelt es sich insbesondere um Wasserstoff, Wasserstoffisotope, Deuterium, Tritium, Helium, Heliumisotope oder Gemische hiervon.With the help of the pumping station according to the invention, it is possible in a very efficient manner to pump light gases, in which case contamination of the gases is avoided. The light gases are in particular hydrogen, hydrogen isotopes, deuterium, tritium, helium, helium isotopes or mixtures thereof.
Nachfolgend wird die Erfindung anhand unterschiedlicher Ausführungsformen unter Bezugnahme auf die Zeichnungen näher erläutert.The invention will be explained in more detail with reference to different embodiments with reference to the drawings.
Es zeigen:Show it:
Gemäß einer ersten bevorzugten Ausführungsform ist eine zu evakuierende Kammer bzw. ein Rezipient
Bei einer Weiterbildung der in
Eine weitere bevorzugte Ausführungsform der Erfindung gemäß
In sämtlichen Ausführungsbeispielen sind als trockenverdichtende Pumpe, Schraubenpumpen vorgesehen, wobei diese stets gegenüber der Umgebung hermetisch dicht sind. Auch bei der Vorvakuumpumpe
Claims (12)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202012012359.9U DE202012012359U1 (en) | 2012-12-22 | 2012-12-22 | Pumping station for pumping light gases |
PCT/EP2013/075835 WO2014095432A1 (en) | 2012-12-22 | 2013-12-06 | Pumping unit for pumping light gases, and use of the pumping unit |
EP13805822.7A EP2935887B1 (en) | 2012-12-22 | 2013-12-06 | Pumping unit for pumping light gases, and use of the pumping unit |
CN201380067683.6A CN104870815A (en) | 2012-12-22 | 2013-12-06 | Pumping unit for pumping light gases, and use of the pumping unit |
TW102146603A TW201433702A (en) | 2012-12-22 | 2013-12-17 | A pump system for pumping light gases, as well as the use of such pump system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE202012012359.9U DE202012012359U1 (en) | 2012-12-22 | 2012-12-22 | Pumping station for pumping light gases |
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DE202012012359U1 true DE202012012359U1 (en) | 2014-03-24 |
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DE202012012359.9U Expired - Lifetime DE202012012359U1 (en) | 2012-12-22 | 2012-12-22 | Pumping station for pumping light gases |
Country Status (5)
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EP (1) | EP2935887B1 (en) |
CN (1) | CN104870815A (en) |
DE (1) | DE202012012359U1 (en) |
TW (1) | TW201433702A (en) |
WO (1) | WO2014095432A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4224015A1 (en) * | 2022-02-07 | 2023-08-09 | Siemens Energy Global GmbH & Co. KG | Hydrogen compressors |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105422454B (en) * | 2015-12-09 | 2017-12-19 | 攀枝花钢城集团瑞钢工业有限公司 | Vacuum-pumping system and vacuum suction method |
JP6473283B1 (en) * | 2017-05-30 | 2019-02-20 | 株式会社アルバック | Vacuum pump |
FR3097599B1 (en) * | 2019-06-18 | 2021-06-25 | Pfeiffer Vacuum | Dry-type primary vacuum pump and method of controlling the injection of a purge gas |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5131825A (en) * | 1990-03-27 | 1992-07-21 | Leybold Aktiengesellschaft | Multi-stage vacuum pump with reaction chamber between stages |
DE10302764A1 (en) * | 2003-01-24 | 2004-07-29 | Pfeiffer Vacuum Gmbh | Vacuum pumping system |
US20050217993A1 (en) * | 2004-03-31 | 2005-10-06 | Applied Films Gmbh & Co. Kg | Lock chamber device for vacuum treatment unit and procedures for its operation |
WO2006097679A1 (en) * | 2005-03-17 | 2006-09-21 | Edwards Limited | Vacuum pumping arrangement |
DE102005042451A1 (en) * | 2005-09-06 | 2007-03-15 | Vacuubrand Gmbh + Co Kg | Vacuum pumping device for use as oil-lubricated rotary vane pump, has drive and rotary units arranged such that transient area has sealing units separating conveying area from drive area, where one of sealing units is ferrous fluid seal |
DE102010009083A1 (en) * | 2009-03-24 | 2011-05-12 | Vacuubrand Gmbh + Co Kg | Vacuum pump e.g. liquid-sealed vacuum pump, for use as rotary vane pump, has two pumping stages respectively arranged at vacuum side and pressure side, where one of pumping stages is implemented as screw pumping stage with screw pump unit |
DE102011015464A1 (en) * | 2010-11-30 | 2012-05-31 | Von Ardenne Anlagentechnik Gmbh | Vacuum pump device for evacuating vacuum vessel used for vacuum-treating substrate, has pressure pump that is executed as screw pump by applying atmospheric pressure to outlet |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62243974A (en) * | 1986-04-15 | 1987-10-24 | Seiko Seiki Co Ltd | Helium compressor |
DE3639512A1 (en) * | 1986-11-20 | 1988-06-01 | Alcatel Hochvakuumtechnik Gmbh | Vacuum pump system with a Roots pump |
DE3865012D1 (en) * | 1988-06-01 | 1991-10-24 | Leybold Ag | PUMP SYSTEM FOR A LEAK DETECTOR. |
DE19704234B4 (en) * | 1997-02-05 | 2006-05-11 | Pfeiffer Vacuum Gmbh | Method and device for controlling the pumping speed of vacuum pumps |
GB0214273D0 (en) * | 2002-06-20 | 2002-07-31 | Boc Group Plc | Apparatus for controlling the pressure in a process chamber and method of operating same |
US7189066B2 (en) * | 2004-05-14 | 2007-03-13 | Varian, Inc. | Light gas vacuum pumping system |
CN201827048U (en) * | 2010-10-20 | 2011-05-11 | 广东理文造纸有限公司 | Vacuum system |
-
2012
- 2012-12-22 DE DE202012012359.9U patent/DE202012012359U1/en not_active Expired - Lifetime
-
2013
- 2013-12-06 EP EP13805822.7A patent/EP2935887B1/en active Active
- 2013-12-06 WO PCT/EP2013/075835 patent/WO2014095432A1/en active Application Filing
- 2013-12-06 CN CN201380067683.6A patent/CN104870815A/en active Pending
- 2013-12-17 TW TW102146603A patent/TW201433702A/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5131825A (en) * | 1990-03-27 | 1992-07-21 | Leybold Aktiengesellschaft | Multi-stage vacuum pump with reaction chamber between stages |
DE10302764A1 (en) * | 2003-01-24 | 2004-07-29 | Pfeiffer Vacuum Gmbh | Vacuum pumping system |
US20050217993A1 (en) * | 2004-03-31 | 2005-10-06 | Applied Films Gmbh & Co. Kg | Lock chamber device for vacuum treatment unit and procedures for its operation |
WO2006097679A1 (en) * | 2005-03-17 | 2006-09-21 | Edwards Limited | Vacuum pumping arrangement |
DE102005042451A1 (en) * | 2005-09-06 | 2007-03-15 | Vacuubrand Gmbh + Co Kg | Vacuum pumping device for use as oil-lubricated rotary vane pump, has drive and rotary units arranged such that transient area has sealing units separating conveying area from drive area, where one of sealing units is ferrous fluid seal |
DE102010009083A1 (en) * | 2009-03-24 | 2011-05-12 | Vacuubrand Gmbh + Co Kg | Vacuum pump e.g. liquid-sealed vacuum pump, for use as rotary vane pump, has two pumping stages respectively arranged at vacuum side and pressure side, where one of pumping stages is implemented as screw pumping stage with screw pump unit |
DE102011015464A1 (en) * | 2010-11-30 | 2012-05-31 | Von Ardenne Anlagentechnik Gmbh | Vacuum pump device for evacuating vacuum vessel used for vacuum-treating substrate, has pressure pump that is executed as screw pump by applying atmospheric pressure to outlet |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4224015A1 (en) * | 2022-02-07 | 2023-08-09 | Siemens Energy Global GmbH & Co. KG | Hydrogen compressors |
WO2023147958A1 (en) * | 2022-02-07 | 2023-08-10 | Siemens Energy Global GmbH & Co. KG | Hydrogen compressor |
Also Published As
Publication number | Publication date |
---|---|
EP2935887B1 (en) | 2018-10-10 |
TW201433702A (en) | 2014-09-01 |
EP2935887A1 (en) | 2015-10-28 |
CN104870815A (en) | 2015-08-26 |
WO2014095432A1 (en) | 2014-06-26 |
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