DE202004001051U1 - Multi-headed pump used as a membrane pump for producing a vacuum comprises shut-off and switching devices integrated in the suction and pressure lines between the pump heads - Google Patents
Multi-headed pump used as a membrane pump for producing a vacuum comprises shut-off and switching devices integrated in the suction and pressure lines between the pump heads Download PDFInfo
- Publication number
- DE202004001051U1 DE202004001051U1 DE202004001051U DE202004001051U DE202004001051U1 DE 202004001051 U1 DE202004001051 U1 DE 202004001051U1 DE 202004001051 U DE202004001051 U DE 202004001051U DE 202004001051 U DE202004001051 U DE 202004001051U DE 202004001051 U1 DE202004001051 U1 DE 202004001051U1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- headed
- generating
- suction
- solenoid valves
- 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 - Lifetime
Links
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
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
-
- 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
- F04B25/00—Multi-stage pumps
-
- 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
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
Abstract
Description
Um insbesondere mit Membranpumpen ein tiefes Vakuum, üblicherweise bis zu 1 mbar, erzeugen zu können, ist es notwendig, Pumpen mit in Reihe geschalteten Pumpenköpfen einzusetzen. Hierbei nimmt man den Nachteil eines begrenzten Volumenstroms in Kauf. Besonders in der Anfahrphase zur Evakuierung größerer Behälter und bei der Arbeit im Vakuumbereich > 100 mbar ist diese Betriebsart zeitaufwendig und damit unwirtschaftlich und in vielen Prozessverläufen hinderlich.In particular with diaphragm pumps a deep vacuum, usually to generate up to 1 mbar, it is necessary to use pumps with pump heads connected in series. This takes into account the disadvantage of a limited volume flow Purchase. Especially in the start-up phase for the evacuation of larger containers and when working in the vacuum range> 100 mbar, this operating mode is time-consuming and therefore uneconomical and in many processes hindrance.
Zur Realisierung von höheren Volumenströmen werden deshalb Pumpen mit parallel geschalteten Pumpenköpfen verwendet. In dieser Fahrweise ist allerdings, wie bereits erwähnt, nur ein geringeres Vakuum von ca. 75 mbar realisierbar.To realize higher volume flows therefore pumps with pump heads connected in parallel are used. In this way of driving is however, as already mentioned, only a lower vacuum of approx. 75 mbar can be achieved.
Eine Umschaltmöglichkeit zwischen beiden Schaltungsvarianten ist bisher nur durch entsprechende Umbau- bzw. Montagearbeiten möglich.A switchover option between the two circuit variants So far, this has only been possible through appropriate conversion or assembly work.
Bei der Pumpenauswahl ist der erreichbare Enddruck oftmals das entscheidende Kriterium. Pumpen mit Parallelschaltung der Pumpenköpfe erreichen das gewünschte Vakuum in kürzerer Zeit als solche mit Reihenschaltung der Pumpenköpfe.The final pressure that can be achieved is when selecting the pump often the decisive criterion. Pumps with parallel connection the pump heads achieve the desired Vacuum in shorter Time as such with series connection of the pump heads.
Gleichwohl haben Pumpen mit Reihenschaltung aus den genannten Gründen ihre Existenzberechtigung, weil oftmals ein überwiegender Bedarf an hohem Saugvermögen als an einem geringen Enddruck besteht, insbesondere beim Ersatz von Strahlpumpen.Nevertheless, pumps have series connection for the reasons mentioned their right to exist, because there is often an overwhelming need for high Pumping speed than at a low final pressure, especially when replacing of jet pumps.
Da der maximal erreichbare Enddruck und die Pumpengröße konstruktiv festgelegt sind, kann das abgesaugte Volumen nur noch über die Laufzeit der Pumpe beeinflusst werden. Dies bedeutet eine Einschränkung in der Nutzung.Because the maximum achievable final pressure and the pump size constructively the suctioned volume can only be set via the Runtime of the pump can be influenced. This means a limitation in of use.
Nach
Es wäre daher wünschenswert, eine mehrköpfige Pumpe mit nur einem Antrieb für die Vakuumerzeugung zur Verfügung zu haben, die in beiden genannten Betriebsarten, nämlich in Parallelschaltung der Pumpenköpfe mit dem Ziel des schnellen Erreichens eines gewissen Druckniveaus und in Reihenschaltung der Selben zur Realisierung eines geringeren Enddrucks, arbeiten kann. Somit könnte flexibel auf unterschiedliche Anforderungen reagiert werden. Der Einsatzbereich wäre ohne Mehrfachanordnung von Pumpen wesentlich erweitert. Leider steht eine derartige Pumpe bisher nicht zur Verfügung.It would therefore be desirable to have a multi-head pump with only one drive for vacuum generation is available to have the in both modes, namely in Parallel connection of the pump heads with the aim of quickly reaching a certain pressure level and in series connection of the same to realize a smaller one Final pressure, can work. This could be flexible to different Requirements are responded to. The area of application would be without Multiple arrangement of pumps significantly expanded. Unfortunately stands such a pump has not been available so far.
Die technische Umsetzung dieser Zielstellung ist daher Aufgabe der Erfindung. Konkret ist eine Umschaltmöglichkeit zu schaffen, mit der wahlweise eine Reihenschaltung, wie auch eine Parallelschaltung der Pumpenköpfe einer mehrköpfigen Pumpe, insbesondere einer Membranpumpe, realisierbar ist, und zwar unter der Prämisse, dass dazu keine Umbau- oder Montagearbeiten erforderlich sind.The technical implementation of this goal is therefore the object of the invention. A switchover option is concrete to create, with either a series connection, as well as one Parallel connection of the pump heads a multi-headed Pump, in particular a diaphragm pump, can be realized, namely under the premise, that no conversion or assembly work is required.
Die Lösung der Aufgabenstellung ist im Schutzanspruch 1 angegeben. Die untergeordneten Ansprüche enthalten zweckmäßige Ausgestaltungen des Hauptanspruchs.The solution to the problem is specified in protection claim 1. The subordinate claims included expedient embodiments of the Main claim.
Erfindungsgemäß sind in die zwischen den Pumpenköpfen liegenden Saug- und Druckleitungen Absperr- und Umschaltarmaturen integriert, die einen Wechsel der Betriebsart, nämlich von Parallel- in Reihenschaltung und umgekehrt, ohne Unterbrechung des Pumpvorgangs ermöglichen. Die Schaltungsanordnung ist somit Bestandteil der Pumpe. Sie ist im Wesentlichen durch die Umschaltbarkeit gekennzeichnet. Letztere ist mittels einer entsprechenden Ventilanordnung vorzugsweise unter Verwendung von Magnetventilen, 3-Wege- Ventilen oder einer Kombination daraus realisierbar. Die funktionell erforderlichen Umschaltpunkte sind entweder fest vorgegeben oder variabel, beispielsweise am saugseitigen Druck, an der Pumpenlaufzeit oder an der Motordrehzahl, orientiert. Die Festlegung der Umschaltpunkte kann entweder manuell oder vorzugsweise durch externe Steuer- und Regeleinrichtungen erfolgen.According to the invention are located in between the pump heads Suction and pressure lines, shut-off and changeover fittings integrated, which change the operating mode, namely from parallel to series connection and vice versa, without interrupting the pumping process. The circuit arrangement is therefore part of the pump. she is essentially characterized by the switchability. Latter is preferably below by means of a corresponding valve arrangement Use of solenoid valves, 3-way valves or a combination realizable from it. The functionally required switching points are either predefined or variable, for example at the suction pressure, based on the pump runtime or the motor speed. The The switching points can either be set manually or preferably by external control and regulating devices.
In einem Ausführungsbeispiel ist eine zweiköpfige Membranpumpe zur Erzeugung eines Vakuums angegeben, deren Pumpenköpfe wahlweise in Parallel- oder Reihenschaltung betreibbar sind.In one embodiment is a two-headed diaphragm pump specified for generating a vacuum, the pump heads optionally can be operated in parallel or in series.
Dazu sind erfindungsgemäß in die Saug- und Druckleitungen zwischen den Pumpenköpfen entsprechende Schaltungsanordnungen mit Absperr- und Umschaltarmaturen, nämlich Magnetventilen und/oder 3- Wege- Magnetventilen, integriert.For this purpose, according to the invention Suction and pressure lines between the pump heads corresponding circuit arrangements with shut-off and changeover fittings, namely solenoid valves and / or 3-way solenoid valves, integrated.
In
Die verwendeten Bezugszeichen bedeuten:The reference symbols used mean:
- 11
- Pumpe,Pump,
- 2 und 32 and 3
- Pumpenkopf,Pump head,
- 44
- Magnetventil,Magnetic valve,
- 55
- 3- Wege- Magnetventil,3 Directional solenoid valve,
- 66
- Saugleitung,suction line
- 77
- Druckleitung.Pressure line.
Mit beiden hier beispielhaft dargestellten Schaltungsanordnungen ist der Wechsel von der Parallelschaltung der Pumpenköpfe in eine Reihenschaltung bzw. umgekehrt ohne Unterbrechung des Pumpvorganges möglich, was bedeutet, dass auch andere Anordnungen denkbar sind.With both circuit arrangements shown here as examples is the change from the parallel connection of the pump heads to one Series connection or vice versa without interrupting the pumping process possible, which means that other arrangements are also conceivable.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004001051U DE202004001051U1 (en) | 2004-01-27 | 2004-01-27 | Multi-headed pump used as a membrane pump for producing a vacuum comprises shut-off and switching devices integrated in the suction and pressure lines between the pump heads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004001051U DE202004001051U1 (en) | 2004-01-27 | 2004-01-27 | Multi-headed pump used as a membrane pump for producing a vacuum comprises shut-off and switching devices integrated in the suction and pressure lines between the pump heads |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202004001051U1 true DE202004001051U1 (en) | 2004-04-15 |
Family
ID=32115827
Family Applications (1)
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DE202004001051U Expired - Lifetime DE202004001051U1 (en) | 2004-01-27 | 2004-01-27 | Multi-headed pump used as a membrane pump for producing a vacuum comprises shut-off and switching devices integrated in the suction and pressure lines between the pump heads |
Country Status (1)
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DE (1) | DE202004001051U1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014202265A1 (en) * | 2014-02-07 | 2015-08-13 | Voith Patent Gmbh | Compressor for a compressed air system, in particular of a motor vehicle |
DE102015008162A1 (en) * | 2015-01-22 | 2016-07-28 | Liebherr-Hausgeräte Lienz Gmbh | Apparatus and method for the parallel evacuation of several vacuum insulation bodies |
CN106500393A (en) * | 2016-11-10 | 2017-03-15 | 青岛海尔中央空调有限公司 | There is the multi-connected machine heat pump of three-level centrifugal compressor |
DE112007000125B4 (en) * | 2006-01-11 | 2017-11-09 | Leobersdorfer Maschinenfabrik Ag | High pressure compressor and its use and method of operation |
DE102016111100A1 (en) * | 2016-06-17 | 2017-12-21 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Valve device for increasing the performance of multistage compressor units |
CN107850062A (en) * | 2015-06-26 | 2018-03-27 | 莱宝有限公司 | Vacuum pump system |
CN108444138A (en) * | 2018-04-17 | 2018-08-24 | 山东美琳达再生能源开发有限公司 | A kind of Two-stage Compression low-temperature air source heat pump unit and method with refrigerating function |
-
2004
- 2004-01-27 DE DE202004001051U patent/DE202004001051U1/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112007000125B4 (en) * | 2006-01-11 | 2017-11-09 | Leobersdorfer Maschinenfabrik Ag | High pressure compressor and its use and method of operation |
DE102014202265A1 (en) * | 2014-02-07 | 2015-08-13 | Voith Patent Gmbh | Compressor for a compressed air system, in particular of a motor vehicle |
DE102015008162A1 (en) * | 2015-01-22 | 2016-07-28 | Liebherr-Hausgeräte Lienz Gmbh | Apparatus and method for the parallel evacuation of several vacuum insulation bodies |
CN107850062A (en) * | 2015-06-26 | 2018-03-27 | 莱宝有限公司 | Vacuum pump system |
DE102016111100A1 (en) * | 2016-06-17 | 2017-12-21 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Valve device for increasing the performance of multistage compressor units |
CN106500393A (en) * | 2016-11-10 | 2017-03-15 | 青岛海尔中央空调有限公司 | There is the multi-connected machine heat pump of three-level centrifugal compressor |
CN106500393B (en) * | 2016-11-10 | 2023-09-29 | 青岛海尔中央空调有限公司 | Multi-split heat pump system with three-stage centrifugal compressor |
CN108444138A (en) * | 2018-04-17 | 2018-08-24 | 山东美琳达再生能源开发有限公司 | A kind of Two-stage Compression low-temperature air source heat pump unit and method with refrigerating function |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20040519 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20070801 |