EP2464868B1 - Diaphragm machine - Google Patents
Diaphragm machine Download PDFInfo
- Publication number
- EP2464868B1 EP2464868B1 EP10737345.8A EP10737345A EP2464868B1 EP 2464868 B1 EP2464868 B1 EP 2464868B1 EP 10737345 A EP10737345 A EP 10737345A EP 2464868 B1 EP2464868 B1 EP 2464868B1
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- diaphragm
- hydraulic
- valve
- pressure
- machine
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- 239000012530 fluid Substances 0.000 claims description 23
- 238000007872 degassing Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 66
- 238000010276 construction Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241001295925 Gegenes Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
- F04B43/0733—Pumps having fluid drive the actuating fluid being controlled by at least one valve with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series
Definitions
- the present invention relates to a multi-cylinder membrane machine with at least two hydraulically driven diaphragms comprising a drive unit for generating at least two pulsating hydraulic fluid streams for driving the membrane and a delivery unit for conveying a delivery medium having at least two delivery chambers whose volumes are changed by the movement of a respective membrane can, each pumping chamber is connected via a pressure valve with a pressure line and a suction valve with a suction line.
- the WO 99/25999 shows a valve assembly with an inlet port and two outlet ports.
- the valve assembly has a valve element arranged in a valve element, which can be moved between two end positions, wherein in the respective end positions in each case an outlet port is closed.
- this object is achieved by a multi-cylinder membrane machine according to claim 1.
- the multi-cylinder diaphragm machine according to the invention eliminates the mentioned problems or disadvantages in a simple manner by providing a clear separation between drive unit and conveyor unit and thus each of the two units can be optimized independently of each other in their structural design.
- the two units are coupled by connecting lines which are connected to the hydraulic drive, i. the drive unit, transmitted pulsating hydraulic fluid streams transmitted to the delivery unit of the membrane machine via the membrane body.
- This concept makes it possible to provide the components of the delivery unit, which are generally made of high-quality, expensive materials and wetted by the delivery fluid, with an extremely compact, space-saving and material-saving form.
- the delivery unit can be designed so that no other, wetted by the fluid flow components must be removed and replace the expensive collection pipelines for a membrane change, which connect the individual membrane heads on the suction and pressure side, can be greatly reduced or even eliminated altogether.
- the drive unit can be designed, for example, as an eccentric crank motor, which allows all the piston rods to lie in a common plane, as a result of which both the bending moment in the eccentric shaft and the bearing forces in a three-cylinder machine are reduced to one third of the values occurring in conventional row-shaped crank mechanisms. As a result, the size can be drastically reduced.
- a further advantage of the eccentric bushing engine is that it has a very high energy efficiency and thus contributes to energy savings.
- the inventive arrangement of the delivery unit consisting of a substantially centrally arranged membrane body and attached thereto or hydraulic bodies thereon, between which a cavity is formed, in which one of the membrane is arranged, so that the membrane, the cavity in a hydraulic space with the pulsating Hydraulic fluid flows is connected, and the delivery space divided.
- the hydraulic body are arranged on the outside of the membrane body, so that can be accessed by disassembly of the hydraulic body of the membrane body on the membrane and this can be optionally replaced.
- the membrane body forms a central block, wherein the membrane body is formed either in one piece or consists of several parts, which together with a connecting piece form a central block.
- the latter variant is somewhat more expensive to produce, it has the advantage that the central block can be made of a less expensive material than the other parts of the membrane body, which come into contact with the fluid and therefore have to meet special requirements.
- the components intended to control and monitor the membrane machine such as e.g. a pressure relief valve, a Mamaentgasungsventil, a leak relief valve or a hydraulic fluid reservoir arranged in the drive unit.
- a pressure relief valve e.g. a pressure relief valve, a Mamaentgasungsventil, a leak relief valve or a hydraulic fluid reservoir arranged in the drive unit.
- the conveyor unit may have an upper side, a lower side and circumferential side surfaces, wherein the hydraulic bodies are arranged on the circumferential side surfaces and that one or more collectors may then be arranged on the upper or the lower side.
- the multi-cylinder membrane machine will be designed such that pulsating hydraulic fluid streams of the same strength are supplied to the membranes, wherein the pulsating hydraulic fluid streams are out of phase with each other to ensure that at each position of the drive piston present in the drive unit, a significant promotion takes place.
- the delivery unit is designed as a two-stage membrane compressor and both stages have a common membrane body, wherein preferably a valve functions both as a first-stage pressure valve, and as a second-stage suction valve.
- the drive unit above the conveyor unit i. is arranged at a geodetically higher point.
- FIG. 1 shows an embodiment of a multi-cylinder membrane machine according to the invention consisting of a drive unit 1, a conveyor unit 2 and the hydraulic lines connecting the conveyor unit and the drive unit.
- the conveyor unit 2 is composed of the diaphragm body 4, the hydraulic bodies 5 and the diaphragms 6 touched by the conveying fluid.
- the hydraulic bodies 5 are attached to the outer surface of the diaphragm body 4. Both hydraulic body and membrane body each have a recess, so that there is a cavity between the membrane body and hydraulic body 5 when placed on the membrane body hydraulic body. In this cavity, the membrane 6 is introduced, which divides the cavity into two spaces 16, namely in the delivery chamber and the hydraulic space.
- the delivery chamber is thus formed essentially by the membrane and the indentation provided in the membrane body, while the hydraulic space is formed by the indentation formed in the hydraulic body and the membrane.
- the drive unit 1 contains the components normally integrated in the delivery unit 2, these being in the example shown a pressure relief valve 7, a Mamaentgasungsventil 8, a leak-relief valve 9 and a hydraulic fluid reservoir 10th
- the conveyor unit can be made extremely compact.
- this would require a special application, to integrate a part of said components in the conveyor unit, even if this would increase the size of the conveyor unit again.
- the conveyor unit is in the FIGS. 2 and 3 once again enlarged in two sectional views shown. It can be seen that all the components in contact with the conveying fluid are arranged in a membrane body block 4.
- the hydraulic bodies 5 are arranged on the periphery thereof so that the membranes 6 can be exchanged with little effort, ie without dismantling the fluid-wetted components.
- suction valves 11 and pressure valves 12 are each connected by a claw 13 with the membrane body, so that the usual expensive collection piping can be omitted and the valves are also easily accessible.
- FIG. 4 shows various embodiments of the conveyor unit in sectional views, in which the diaphragm body block 4 either in one piece (see the top 3 embodiments of the left Side of FIG. 4 ) or consisting of individual parts 14, which are combined by a connecting piece 15 into a block is executed.
- the diaphragm body block 4 either in one piece (see the top 3 embodiments of the left Side of FIG. 4 ) or consisting of individual parts 14, which are combined by a connecting piece 15 into a block is executed.
- the upper left embodiment is not part of the invention because it has only two membranes.
- a center exists around which the individual hydraulic bodies 5 are arranged.
- the hydraulic bodies are thus all in one plane.
- FIG. 5 a construction provided for membrane compressors in which the membrane body 4 form a two-stage valve, wherein the pressure valve of the stage 1, which is formed by the first membrane body member 21, and the suction valve of the stage 2, which is formed by the second membrane body member 22 through a single valve 17 is realized.
- the membrane body 4 form a two-stage valve, wherein the pressure valve of the stage 1, which is formed by the first membrane body member 21, and the suction valve of the stage 2, which is formed by the second membrane body member 22 through a single valve 17 is realized.
- FIG. 6 a true to scale comparison between a conventional diaphragm pump with crank mechanism 19 (left side of the FIG. 6 ) and a membrane pump 20 according to the invention with a Exzenterkulissentriebtechnik same capacity (right side of FIG. 6 )shown.
- the delivery unit is designed significantly more compact, so that it can be used even in tight spaces.
- the drive unit can then be arranged separately via the hydraulic lines.
- the pulsating hydraulic fluid streams delivered by the drive unit will be the same for all pressure chambers of the membrane bodies and the work spaces will have the same volume.
- connection of the connecting line between the conveyor unit 2 and drive unit 1 is arranged at the geodetically highest point of the hydraulic chamber 5.
- leak-relief valves 9 arranged in the drive unit 1 are connected to the hydraulic chamber 5 of the conveyor unit 2 by means of a pipeline or a hose 18.
Description
Die vorliegende Erfindung betrifft eine Mehrzylindermembranmaschine mit mindestens zwei hydraulisch angetriebenen Membranen bestehend aus einer Antriebseinheit zur Erzeugung von zumindest zwei pulsierenden Hydraulikfluidströmen zum Antrieb der Membrane und einer Fördereinheit zur Förderung eines Fördermediums mit mindestens zwei Förderräumen, deren Volumina durch die Bewegung von jeweils einer Membran verändert werden können, wobei jeder Förderraum über ein Druckventil mit einer Druckleitung und über ein Saugventil mit einer Saugleitung verbunden ist.The present invention relates to a multi-cylinder membrane machine with at least two hydraulically driven diaphragms comprising a drive unit for generating at least two pulsating hydraulic fluid streams for driving the membrane and a delivery unit for conveying a delivery medium having at least two delivery chambers whose volumes are changed by the movement of a respective membrane can, each pumping chamber is connected via a pressure valve with a pressure line and a suction valve with a suction line.
Die Bedeutung von Mehrzylinder-Membranmaschinen insbesondere von Prozessmembranpumpen und Membrankompressoren für die verfahrenstechnische Industrie hat in den letzten Jahren stark zugenommen, da die Schadstoffemissionen von Produktionsanlagen immer weiter abgesenkt werden müssen. Diese Forderung gilt für viele in der Verfahrenstechnik benötigten Pumpen und Kompressoren. Je größer deren Leistungseinheiten und je umweltbelastender die zu fördernden Fluide sind, umso schwieriger wird es, das Problem der Leckage und ihre Entsorgung in den Griff zu bekommen. In den letzten Jahren wurden deshalb intensive Anstrengungen unternommen, um die Entwicklung leckfreier Prozessmaschinen in Richtung größerer Leistungseinheiten voranzutreiben.The importance of multi-cylinder membrane machines in particular of process diaphragm pumps and membrane compressors for the process industry has increased significantly in recent years, since the pollutant emissions from production plants must be further reduced. This requirement applies to many pumps and compressors required in process engineering. The larger their power units and the more polluting the fluids to be delivered, the more difficult it becomes to tackle the problem of leakage and its disposal. In recent years, therefore, intensive efforts have been made to advance the development of leak-free processing machines toward larger power units.
Für viele Fluide, die als Reaktionskomponenten vor allem in der chemischen Verfahrenstechnik gefördert bzw. gepumpt werden, wurden die maximal zulässigen Emissionswerte (MAK-Werte) vom Gesetzgeber inzwischen so niedrig angesetzt, dass leckfreie Maschinen zwingend notwendig geworden sind. Dies hatte zur Konsequenz, dass besonders für Hochdruckprozesse die klassische Kolbenmaschine durch Membranmaschinen ersetzt werden musste. Es werden heute aber auch für weniger gefährliche Flüssigkeiten zunehmen Membranmaschinen eingesetzt. Mit Membranmaschinen sind unter anderem folgende Vorteile verbunden:
- Die gegenüber der Kolbenmaschine höhere Verfügbarkeit und Betriebssicherheit aufgrund der nahezu verschleißfreien Hydraulik-Kolbenabdichtung, langer Membranlebensdauer, einer leckfreien zuverlässigen Membranbruchsignalisierung und einer integrierten totalen Absicherung gegen Überdruck und Unterdruck,
- Die niedrigen Betriebskosten infolge des geringen Wartungsaufwandes und Energiebedarfs. So hat zum Beispiel die hydraulische Membranpumpe aufgrund der äußerst geringen Reibung und Leckage ihrer in Hydrauliköl laufenden Kolbenabdichtung den höchsten energetischen Wirkungsgrad aller bekannten Pumpengattungen.
- Diese Eigenschaften haben dazu geführt, dass bei der Investitionsplanung von Anlagen immer häufiger zugunsten von Membranmaschinen entschieden wird. Ihr höherer Kaufpreis gegenüber anderen Konstruktionen wird oft schon nach kurzer Betriebzeit durch die höhere Verfügbarkeit, d.h. durch minimale Stillstandszeiten der Anlage, und durch die günstigen Betriebskosten amortisiert.
- The higher availability and reliability compared to the piston engine due to the almost wear-free hydraulic piston seal, long membrane life, a leak-free reliable diaphragm rupture signaling and an integrated total protection against overpressure and negative pressure.
- The low operating costs due to low maintenance and energy requirements. For example, due to the extremely low friction and leakage of its piston seal running in hydraulic oil, the hydraulic diaphragm pump has the highest energy efficiency of all known pump types.
- These characteristics have led to the decision to invest more and more in favor of membrane machines in the investment planning of plants. Their higher purchase price compared to other designs is often amortized after only a short period of operation due to the higher availability, ie through minimal downtimes of the system, and due to the favorable operating costs.
Auch bei der Modernisierung bestehender Anlagen werden, vor allem, wenn es um schwierig zu fördernde Komponenten geht, wie z.B. Flüssiggase, feststoffhaltige Flüssigkeiten oder chemisch aggressive Fluide, häufig ältere Kolbenmaschinen durch Membranmaschinen ersetzt, um kostspielige Stillstandszeiten sowie die Wartungs- und Reparaturkosten zu senken oder nicht mehr tolerierbare Leckagen zu beseitigen. Üblicherweise werden große Membranmaschinen als Mehrzylindermaschinen gebaut, wobei die einzelnen Membranköpfe in der Regel von oszillierend arbeitenden Kurbeltriebwerken angetrieben werden. Das Triebwerk und die einzelnen Membranköpfe bilden hierbei eine bauliche Einheit, wobei das Kurbeltriebwerk entweder in Monoblockbauweise oder Elementbauweise ausgeführt ist.Also in the modernization of existing plants, especially when it comes to difficult to transport components, such as. Liquefied gases, solids containing liquids or chemically aggressive fluids, often replacing older piston machines with membrane machines to reduce costly downtime and maintenance and repair costs or to eliminate intolerable leaks. Usually, large membrane machines are built as multi-cylinder machines, the individual diaphragm heads are usually driven by oscillating crankshaft engines working. The engine and the individual membrane heads here form a structural unit, wherein the crank mechanism is designed either in monoblock construction or element construction.
Der Nachteil dieses Konzeptes besteht einerseits darin, dass es nicht ausreichend flexibel an die örtlichen Bedingungen, wie z.B. den verfügbaren Platz oder das zulässige Gewicht, anpassbar ist, andererseits erfordert es teure Sammelleitungen auf der Saug- und Druckseite, um die einzelnen, voneinander entfernten Membranköpfe miteinander zu verbinden.The disadvantage of this concept is, on the one hand, that it is not sufficiently flexible to the local conditions, e.g. the available space or weight, on the other hand, it requires expensive manifolds on the suction and pressure side to connect the individual, separate membrane heads with each other.
Ein weiterer Nachteil der konventionellen Bauweise ist die nur schwer zugängliche Membran im Servicefalle. Bei einem Membranwechsel oder einem Austausch der Ventile müssen die vom Förderfluid benetzten saug- und druckseitigen Rohrleitungen vom Membrankopf gelöst werden, damit die auszutauschenden Verschleißteile, wie z.B. Membrane oder Ventile, überhaupt zugänglich sind. Vor allem bei großen Hochdruck-Membranmaschinen ist dies mit einem beträchtlichen Aufwand verbunden.Another disadvantage of the conventional design is the difficult to access membrane in case of service. In the event of a membrane change or replacement of the valves, the suction and pressure side pipes wetted by the delivery fluid must be released from the membrane head so that the wear parts to be exchanged, such as, e.g. Diaphragm or valves are accessible at all. Especially with large high-pressure membrane machines this is associated with a considerable effort.
Insgesamt betrachtet, sind die Nachteile der bekannten Konstruktionen im Wesentlichen die folgenden:
- Großer Platzbedarf
- Hohes Gewicht
- Hoher Materialverbrauch
- Unzureichende Anpassungsfähigkeit an örtliche Verhältnisse
- Mangelnde Servicefreundlichkeit
- Hoher Preis
- Nicht ausgeschöpftes Potential zur Maximierung des energetischen Wirkungsgrades Beispiele solcher Mehrzylindermembranmaschinen sind in der
US 2003/077190 A DE 39 42 981 US 5,368,451
- Big need of space
- High weight
- High material consumption
- Insufficient adaptability to local conditions
- Lack of service friendliness
- High price
- Unexploited potential for maximizing energy efficiency Examples of such multi-cylinder membrane machines are in the
US 2003/077190 A DE 39 42 981 US 5,368,451
Die
Ausgehend von dem beschriebenen Stand der Technik ist es Aufgabe der Erfindung, eine Mehrzylindermembranmaschine bereitzustellen, die die genannten Nachteile vermeidet oder zumindest vermindert, die äußerst kompakt und damit platz- und materialsparend ist, einen hohen energetischen Wirkungsgrad hat, hohe Flexibilität in der Anpassung an die Verhältnisse am Aufstellungsort aufweist und bei der gleichzeitig gewährleistet ist, dass Montage und Demontage der einzelnen Membranen und Ventile auf einfache Weise möglich sind.Based on the described prior art, it is an object of the invention to provide a multi-cylinder diaphragm machine which avoids or at least reduces the mentioned disadvantages, which is extremely compact and thus saves space and material, has a high energy efficiency, high flexibility in the adaptation to the Has conditions at the site and at the same time ensures that assembly and disassembly of the individual membranes and valves are possible in a simple manner.
Erfindungsgemäß wird diese Aufgabe durch eine Mehrzylindermembranmaschine nach Anspruch 1 gelöst.According to the invention, this object is achieved by a multi-cylinder membrane machine according to
Durch die erfindungsgemäße Mehrzylindermembranmaschine werden die erwähnten Probleme bzw. Nachteile in einfacher Weise dadurch beseitigt, dass eine klare Trennung zwischen Antriebseinheit und Fördereinheit erfolgt und somit jede der beiden Einheiten unabhängig voneinander in ihrer konstruktiven Gestaltung optimiert werden kann. Gekoppelt werden die beiden Einheiten durch Verbindungsleitungen, welche die vom Hydraulikantrieb, d.h. der Antriebseinheit, erzeugten pulsierenden Hydraulikfluidströme auf die Fördereinheit der Membranmaschine über die Membrankörper übertragen.The multi-cylinder diaphragm machine according to the invention eliminates the mentioned problems or disadvantages in a simple manner by providing a clear separation between drive unit and conveyor unit and thus each of the two units can be optimized independently of each other in their structural design. The two units are coupled by connecting lines which are connected to the hydraulic drive, i. the drive unit, transmitted pulsating hydraulic fluid streams transmitted to the delivery unit of the membrane machine via the membrane body.
Dieses Konzept ermöglicht es, den im Allgemeinen aus hochwertigen, teuren Werkstoffen bestehenden, vom Förderfluid benetzten Bauteilen der Fördereinheit eine äußerst kompakte, material- und platzsparende Form zu geben.This concept makes it possible to provide the components of the delivery unit, which are generally made of high-quality, expensive materials and wetted by the delivery fluid, with an extremely compact, space-saving and material-saving form.
Außerdem kann die Fördereinheit so gestaltet werden, dass für einen Membranwechsel keine sonstigen, vom Förderfluid benetzten Bauteile demontiert werden müssen und die teuren Sammelrohrleitungen, welche die einzelnen Membranköpfe auf der Saug- und Druckseite miteinander verbinden, stark reduziert werden oder sogar ganz entfallen können. Die Antriebseinheit kann beispielsweise als Exzenterkulissentriebwerk ausgebildet sein, welches gestattet, dass alle Kolbenstangen in einer gemeinsamen Ebene liegen, wodurch sowohl das Biegemoment in der Exzenterwelle als auch die Lagerkräfte bei einer Dreizylindermaschine auf ein Drittel der bei üblichen Kurbeltriebwerken in Reihenbauweise auftretenden Werte reduziert werden. Dadurch kann die Baugröße drastisch verringert werden.In addition, the delivery unit can be designed so that no other, wetted by the fluid flow components must be removed and replace the expensive collection pipelines for a membrane change, which connect the individual membrane heads on the suction and pressure side, can be greatly reduced or even eliminated altogether. The drive unit can be designed, for example, as an eccentric crank motor, which allows all the piston rods to lie in a common plane, as a result of which both the bending moment in the eccentric shaft and the bearing forces in a three-cylinder machine are reduced to one third of the values occurring in conventional row-shaped crank mechanisms. As a result, the size can be drastically reduced.
Ein weiterer Vorteil des Exzenterkulissentriebwerkes ist, dass es einen sehr hohen energetischen Wirkungsgrad aufweist und damit einen Beitrag zur Energieeinsparung leistet.A further advantage of the eccentric bushing engine is that it has a very high energy efficiency and thus contributes to energy savings.
Die erfindungsgemäße Anordnung der Fördereinheit bestehend aus einem im Wesentlichen zentral angeordneten Membrankörper und daran bzw. darauf befestigten Hydraulikkörpern, zwischen denen ein Hohlraum gebildet wird, in dem eine der Membrane angeordnet ist, so dass die Membran den Hohlraum in einen Hydraulikraum, der mit den pulsierenden Hydraulikfluidströmen verbunden ist, und den Förderraum unterteilt.The inventive arrangement of the delivery unit consisting of a substantially centrally arranged membrane body and attached thereto or hydraulic bodies thereon, between which a cavity is formed, in which one of the membrane is arranged, so that the membrane, the cavity in a hydraulic space with the pulsating Hydraulic fluid flows is connected, and the delivery space divided.
Mit Vorteil sind die Hydraulikkörper an der Außenseite des Membrankörpers angeordnet, so dass durch Demontage des Hydraulikkörpers von dem Membrankörper auf die Membran zugegriffen werden und diese gegebenenfalls ausgetauscht werden kann.Advantageously, the hydraulic body are arranged on the outside of the membrane body, so that can be accessed by disassembly of the hydraulic body of the membrane body on the membrane and this can be optionally replaced.
In einer bevorzugten Ausführungsform bildet der Membrankörper einen zentralen Block, wobei der Membrankörper entweder einstückig ausgebildet ist oder aus mehreren Teilen besteht, die zusammen mit einem Verbindungsstück einen zentralen Block bilden. Letztere Variante ist zwar etwas aufwendiger herzustellen, hat jedoch den Vorteil, dass der zentrale Block aus einem kostengünstigeren Material hergestellt werden kann, als die anderen Teile des Membrankörpers, die mit dem Fördermedium in Kontakt treten und daher spezielle Anforderungen erfüllen müssen.In a preferred embodiment, the membrane body forms a central block, wherein the membrane body is formed either in one piece or consists of several parts, which together with a connecting piece form a central block. Although the latter variant is somewhat more expensive to produce, it has the advantage that the central block can be made of a less expensive material than the other parts of the membrane body, which come into contact with the fluid and therefore have to meet special requirements.
In einer weiteren bevorzugten Ausführungsform sind die zur Steuerung und Überwachung der Membranmaschine vorgesehenen Bauelemente, wie z.B. ein Druckbegrenzungsventil, ein Dauerentgasungsventil, ein Leckergänzungsventil oder ein Hydraulikfluidvorratsraum in der Antriebseinheit angeordnet. Je mehr dieser Bauelemente in die Antriebseinheit integriert werden, umso kompakter kann die Fördereinheit ausgestaltet werden.In a further preferred embodiment, the components intended to control and monitor the membrane machine, such as e.g. a pressure relief valve, a Dauerentgasungsventil, a leak relief valve or a hydraulic fluid reservoir arranged in the drive unit. The more of these components are integrated into the drive unit, the more compact the delivery unit can be configured.
Weiterhin ist in einer bevorzugten Ausführungsform vorgesehen, dass alle Saugleitungen und alle Druckleitungen im oder am Membrankörper, vorzugsweise jeweils in einem Sammelstück, miteinander verbunden sind, so dass der Membrankörper nach außen nur mit einer Druckleitung und nur mit einer Saugleitung verbunden ist. Diese Maßnahme verringert die Kosten für die Bereitstellung der Saug- und Druckleitungen. So kann beispielsweise die Fördereinheit eine Oberseite, eine Unterseite und umlaufende Seitenflächen aufweisen, wobei die Hydraulikkörper an den umlaufenden Seitenflächen angeordnet sind und dass eine oder die mehreren Sammelstücke dann an der Ober- oder der Unterseite angeordnet sein können.Furthermore, it is provided in a preferred embodiment that all suction lines and all pressure lines in or on the membrane body, preferably in each case in a claw, are connected to each other, so that the membrane body is connected to the outside only with a pressure line and only with a suction line. This measure reduces the cost of deployment the suction and pressure lines. For example, the conveyor unit may have an upper side, a lower side and circumferential side surfaces, wherein the hydraulic bodies are arranged on the circumferential side surfaces and that one or more collectors may then be arranged on the upper or the lower side.
In der Regel wird die Mehrzylindermembranmaschine derart ausgestaltet sein, dass den Membranen pulsierende Hydraulikfluidströme gleicher Stärke zugeführt werden, wobei die pulsierenden Hydraulikfluidströme zueinander phasenverschoben sind, um zu gewährleisten, dass bei jeder Stellung des in der Antriebseinheit vorhandenen Antriebskolbens eine signifikante Förderung erfolgt.In general, the multi-cylinder membrane machine will be designed such that pulsating hydraulic fluid streams of the same strength are supplied to the membranes, wherein the pulsating hydraulic fluid streams are out of phase with each other to ensure that at each position of the drive piston present in the drive unit, a significant promotion takes place.
In einer weiteren bevorzugten Ausführungsform ist die Fördereinheit als zweistufiger Membrankompressor ausgebildet und beide Stufen haben einen gemeinsamen Membrankörper, wobei vorzugsweise ein Ventil sowohl als Druckventil der ersten Stufe, als auch als Saugventil der zweiten Stufe fungiert.In a further preferred embodiment, the delivery unit is designed as a two-stage membrane compressor and both stages have a common membrane body, wherein preferably a valve functions both as a first-stage pressure valve, and as a second-stage suction valve.
In einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass die Antriebseinheit über der Fördereinheit, d.h. an einem geodätisch höher liegenden Punkt angeordnet ist.In a further preferred embodiment it is provided that the drive unit above the conveyor unit, i. is arranged at a geodetically higher point.
Weiterhin ist es grundsätzlich von Vorteil, die Hydraulikkörper derart anzuordnen, dass die Hydraulikleitungen von den Hydraulikkörpern zur Antriebseinheit möglichst kurz und möglichst gleich lang sind, um die Einflüsse der Leitungen möglichst gering und gleichmäßig zu halten.Furthermore, it is fundamentally advantageous to arrange the hydraulic bodies such that the hydraulic lines from the hydraulic bodies to the drive unit are as short as possible and as long as possible in order to keep the influences of the lines as small and uniform as possible.
Weitere Vorteile, Merkmale und Anwendungsmöglichkeiten werden deutlich anhand der folgenden Beschreibung einiger Ausführungsbeispiele sowie der zugehörigen Figuren. Es zeigen:
-
eine Mehrzylindermembranmaschine gemäß der Erfindung,Figur 1 -
eine Fördereinheit im Schnitt,Figur 2 -
eine Fördereinheit in einer Ansicht von oben,Figur 3 -
verschiedene Ausführungsformen der kompakten Fördereinheit,Figur 4 -
ein Ausführungsbeispiel für die Fördereinheit eines zweistufigen Membrankompressors undFigur 5 -
ein maßstabsgetreuer Größenvergleich zwischen einer konventionellen Membranpumpe und einer Ausführungsform der erfindungsgemäßen Membranpumpe.Figur 6
-
FIG. 1 a multi-cylinder membrane machine according to the invention, -
FIG. 2 a conveyor unit in section, -
FIG. 3 a conveyor unit in a view from above, -
FIG. 4 various embodiments of the compact conveyor unit, -
FIG. 5 an embodiment of the delivery unit of a two-stage diaphragm compressor and -
FIG. 6 a true to scale comparison between a conventional diaphragm pump and an embodiment of the diaphragm pump according to the invention.
Die Antriebseinheit 1 enthält die normalerweise in der Fördereinheit 2 integrierten Bauelemente, dies sind im gezeigten Beispiel ein Druckbegrenzungsventil 7, ein Dauerentgasungsventil 8, ein Leckergänzungsventil 9 sowie ein Hydraulikfluidvorratsraum 10.The
Dadurch kann die Fördereinheit äußerst kompakt gestaltet werden. Selbstverständlich wäre es möglich, falls dies eine spezielle Anwendung erfordern sollte, auch einen Teil der genannten Bauelemente in die Fördereinheit zu integrieren, auch wenn dies die Baugröße der Fördereinheit wieder vergrößern würde.As a result, the conveyor unit can be made extremely compact. Of course, it would be possible, if this would require a special application, to integrate a part of said components in the conveyor unit, even if this would increase the size of the conveyor unit again.
Die Fördereinheit ist in den
Die Saugventile 11 und Druckventile 12 sind jeweils durch ein Sammelstück 13 mit dem Membrankörper verbunden, so dass die üblichen teueren Sammelrohrleitungen entfallen können und die Ventile zudem leicht zugänglich sind.The
Bei all diesen Ausführungsformen existiert ein Zentrum, um das die einzelnen Hydraulikkörper 5 angeordnet sind. Die Hydraulikkörper liegen somit alle in einer Ebene.In all of these embodiments, a center exists around which the individual
Als weitere Ausführungsvariante ist in
Um die Vorzüge der Erfindung deutlich zu machen, ist in
In der Regel werden die von der Antriebseinheit gelieferten, pulsierenden Hydraulikfluidströme für alle Druckräume der Membrankörper gleich sein und die Arbeitsräume werden das gleiche Volumen aufweisen.As a rule, the pulsating hydraulic fluid streams delivered by the drive unit will be the same for all pressure chambers of the membrane bodies and the work spaces will have the same volume.
Dennoch kann es für bestimmte Anwendungsfälle von Vorteil sein, wenn die Schöpfräume ungleiche Volumen aufweisen und mit Hydraulikfluidströmen unterschiedlicher Stärke beaufschlagt werden.Nevertheless, it may be advantageous for certain applications if the pump chambers have unequal volumes and hydraulic fluid flows of different strength are applied.
Weiterhin ist es von Vorteil, wenn der Anschluss der Verbindungsleitung zwischen Fördereinheit 2 und Antriebseinheit 1 an der geodätisch höchsten Stelle des Hydraulikraums 5 angeordnet ist.Furthermore, it is advantageous if the connection of the connecting line between the
Weiterhin kann es von Vorteil sein, wenn die in der Antriebseinheit 1 angeordneten Leckergänzungsventile 9 mittels einer Rohrleitung oder einem Schlauch 18 mit dem Hydraulikraum 5 der Fördereinheit 2 verbunden sind.Furthermore, it may be advantageous if the leak-
- 11
- Antriebseinheitdrive unit
- 22
- Fördereinheitdelivery unit
- 33
- Hydraulikleitunghydraulic line
- 44
- Membrankörpermembrane body
- 55
- Hydraulikkörperhydraulic body
- 66
- Membranmembrane
- 77
- DruckbegrenzungsventilPressure relief valve
- 88th
- DauerentgasungsventilDauerentgasungsventil
- 99
- LeckergänzungsventilLeakage compensation valve
- 1010
- HydraulikfluidvorratsraumHydraulic fluid reservoir
- 1111
- Saugventilsuction
- 1212
- Druckventilpressure valve
- 1313
- Sammelstückclaw
- 1414
- Einzelteileindividual parts
- 1515
- Verbindungsstückjoint
- 1616
- Räumerooms
- 1717
- VentilValve
- 1818
- Schlauchtube
- 1919
- KurbeltriebwerkCrank drive
- 2020
- Membranpumpediaphragm pump
- 2121
- erstes Membrankörperelementfirst membrane body element
- 2222
- zweites Membrankörperelementsecond membrane body element
- 2323
- Saugventil der ersten StufeSuction valve of the first stage
- 2424
- Druckventil der zweiten StufeSecond stage pressure valve
Claims (8)
- A multi-cylinder diaphragm machine having at least three hydraulically driven diaphragms (6) comprising:
a drive unit (1) for producing at least three pulsating hydraulic fluid flows for driving the diaphragms (6) and a delivery unit (2) for delivering a delivery medium and having at least three pump chambers, the volumes of which can be varied by the movement of a respective diaphragm (6), wherein each delivery chamber is connected by way of a pressure valve (12) to a pressure line and by way of a suction valve (11) to a suction line, wherein the delivery unit (2) comprises a diaphragm body (4) in which the pressure and suction lines are arranged and at least three hydraulic bodies (5), wherein each hydraulic body (5) is connected to the drive unit (1), wherein formed between each hydraulic body (5) and the diaphragm body (4) is a cavity in which one of the diaphragms (6) is arranged so that by production of the pulsating hydraulic fluid flows the diaphragms (6) are moved within the cavities and a delivery medium is periodically transferred from the suction line into the pressure line. - A multi-cylinder diaphragm machine as set forth in claim 1 characterized in that the hydraulic bodies (5) are arranged at the outside of the diaphragm body (4) so that the diaphragm (6) can be accessed by dismantling the hydraulic body (5) from the diaphragm body (4) and the diaphragm can optionally be replaced.
- A multi-cylinder diaphragm machine as set forth in claim 1 or claim 2 characterized in that the diaphragm body (4) forms a central block, wherein the diaphragm body (4) is either in one piece or comprises a plurality of pieces (14) which together with a connecting portion form a central block.
- A multi-cylinder diaphragm machine as set forth in one of claims 1 through 3 characterized in that components provided for controlling and monitoring the diaphragm machine such as for example a pressure limiting valve (7), a continuous degassing valve (8), a leak make-up valve (9) or a hydraulic fluid storage chamber (10) are arranged in the drive unit (1).
- A multi-cylinder diaphragm machine as set forth in one of claims 1 through 4 characterized in that all suction lines and all pressure lines in or on the diaphragm body (4) are connected together, preferably each in a collecting portion (13), so that the diaphragm body (4) is connected to the exterior only with one pressure line and only with one suction line.
- A multi-cylinder diaphragm machine as set forth in one of claims 1 through 5 characterized in that the drive unit (1) is of such a configuration that pulsating hydraulic fluid flows of differing strength are fed to the diaphragms (6).
- A multi-cylinder diaphragm machine as set forth in one of claims 1 through 6 characterized in that the delivery unit (2) is in the form of a 2-stage diaphragm compressor and both stages have a common diaphragm body, wherein preferably a valve serves both as the pressure valve (24) of the first stage and also as the suction valve (23) of the second stage.
- A multi-cylinder diaphragm machine as set forth in one of claims 1 through 7 characterized in that the delivery unit (2) has a top side, an underside and peripherally extending side surfaces and the hydraulic bodies (5) are arranged at the peripherally extending side surfaces, wherein preferably the drive unit (1) is arranged over the delivery unit (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009039175 | 2009-08-11 | ||
PCT/EP2010/061305 WO2011018394A1 (en) | 2009-08-11 | 2010-08-03 | Diaphragm machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2464868A1 EP2464868A1 (en) | 2012-06-20 |
EP2464868B1 true EP2464868B1 (en) | 2019-04-17 |
Family
ID=42938515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10737345.8A Active EP2464868B1 (en) | 2009-08-11 | 2010-08-03 | Diaphragm machine |
Country Status (8)
Country | Link |
---|---|
US (1) | US9062670B2 (en) |
EP (1) | EP2464868B1 (en) |
JP (1) | JP2013501882A (en) |
CN (1) | CN102483055A (en) |
BR (1) | BR112012003036A8 (en) |
CA (1) | CA2763125C (en) |
RU (1) | RU2012108928A (en) |
WO (1) | WO2011018394A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103244393A (en) * | 2013-05-10 | 2013-08-14 | 北京京城压缩机有限公司 | Diaphragm type compressor integration cylinder body component with single cylinder body and multiple cylinder covers |
CN103244394A (en) * | 2013-05-10 | 2013-08-14 | 北京京城压缩机有限公司 | Integrated cylinder block component of single cylinder cover diaphragm type compressor |
CN103244392B (en) * | 2013-05-10 | 2015-08-19 | 北京京城压缩机有限公司 | A kind of integrated part of cylinder block of membrane compressor with multi-cylinder lid |
CN112032038B (en) * | 2020-09-11 | 2023-01-10 | 衡阳盈德气体有限公司 | Novel internal anti-icing device for piston liquid pump |
CN114688002A (en) * | 2022-02-23 | 2022-07-01 | 西安交通大学 | Split diaphragm compressor |
GB202205883D0 (en) * | 2022-04-22 | 2022-06-08 | Cytiva Sweden Ab | Pump for a bioprocessing system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20030077190A1 (en) * | 2001-10-24 | 2003-04-24 | Shigehisa Kinugawa | Reciprocating pump and check valve |
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US2383193A (en) | 1943-11-01 | 1945-08-21 | Oliver United Felters Inc | Diaphragm pump |
US2657636A (en) * | 1949-03-24 | 1953-11-03 | Benjamin F Schmidt | Hydraulic pump |
GB681139A (en) * | 1950-02-22 | 1952-10-15 | Maurice Monoyer | An improved hydraulic drive |
US2821930A (en) * | 1953-06-12 | 1958-02-04 | Ici Ltd | Diaphragm operated delivery pumps |
JPS4840169Y1 (en) * | 1970-02-26 | 1973-11-26 | ||
US3659966A (en) * | 1970-04-24 | 1972-05-02 | Peter Faber | Pumping apparatus for flowable concrete or the like |
GB2235697B (en) | 1986-12-30 | 1991-08-14 | Gen Electric | Improved and property-balanced nickel-base superalloys for producing single crystal articles. |
US4856966A (en) * | 1988-01-11 | 1989-08-15 | Ozawa R & D., Inc. | Variable displacement diaphragm pump |
JPH0357889A (en) * | 1989-07-25 | 1991-03-13 | Matsushita Electric Works Ltd | Diaphragm pump |
DE3942981A1 (en) | 1989-12-27 | 1991-07-04 | Karl Eickmann | High pressure water pump aggregate - uses central plate to form membrane stroke boundary wall |
US5368451A (en) * | 1991-06-04 | 1994-11-29 | Hammond; John M. | Metering pump |
US5332372A (en) * | 1992-04-20 | 1994-07-26 | Warren Rupp, Inc. | Modular double-diaphragm pump |
SE9704160L (en) * | 1997-11-13 | 1999-05-14 | Svante Bahrton | valve device |
DE59809021D1 (en) | 1998-05-20 | 2003-08-21 | Wagner Ag Altstaetten J | DIAPHRAGM PUMP FOR CONVEYING HIGH-VISCUS MEDIA |
DE69836836T2 (en) * | 1998-11-06 | 2007-06-28 | Honeywell, Inc., Minneapolis | ELECTROSTATICALLY OPERATED PUMP ARRAY |
JP2001241379A (en) | 2000-02-28 | 2001-09-07 | Tacmina Corp | Reciprocating pump |
CN1179127C (en) * | 2002-09-03 | 2004-12-08 | 吉林大学 | Multiple-cavity piezoelectric film driven pump |
-
2010
- 2010-08-03 CA CA2763125A patent/CA2763125C/en not_active Expired - Fee Related
- 2010-08-03 US US13/380,280 patent/US9062670B2/en not_active Expired - Fee Related
- 2010-08-03 CN CN2010800360238A patent/CN102483055A/en active Pending
- 2010-08-03 EP EP10737345.8A patent/EP2464868B1/en active Active
- 2010-08-03 WO PCT/EP2010/061305 patent/WO2011018394A1/en active Application Filing
- 2010-08-03 BR BR112012003036A patent/BR112012003036A8/en not_active Application Discontinuation
- 2010-08-03 JP JP2012524200A patent/JP2013501882A/en active Pending
- 2010-08-03 RU RU2012108928/06A patent/RU2012108928A/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030077190A1 (en) * | 2001-10-24 | 2003-04-24 | Shigehisa Kinugawa | Reciprocating pump and check valve |
Also Published As
Publication number | Publication date |
---|---|
CN102483055A (en) | 2012-05-30 |
BR112012003036A2 (en) | 2016-04-19 |
CA2763125C (en) | 2017-05-16 |
WO2011018394A1 (en) | 2011-02-17 |
US9062670B2 (en) | 2015-06-23 |
BR112012003036A8 (en) | 2017-10-10 |
EP2464868A1 (en) | 2012-06-20 |
US20120100022A1 (en) | 2012-04-26 |
JP2013501882A (en) | 2013-01-17 |
CA2763125A1 (en) | 2011-02-17 |
RU2012108928A (en) | 2013-09-20 |
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