WO2006092333A1 - Diaphragm pump and method for the production thereof - Google Patents
Diaphragm pump and method for the production thereof Download PDFInfo
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- WO2006092333A1 WO2006092333A1 PCT/EP2006/001985 EP2006001985W WO2006092333A1 WO 2006092333 A1 WO2006092333 A1 WO 2006092333A1 EP 2006001985 W EP2006001985 W EP 2006001985W WO 2006092333 A1 WO2006092333 A1 WO 2006092333A1
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- membrane
- diaphragm pump
- membrane device
- pump according
- pressure
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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
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
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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
Definitions
- the invention relates to a diaphragm pump according to the preamble of claim 1, a method for producing a pump diaphragm according to claim 10 and a use of the diaphragm pump according to claim 13.
- Membrane pumps with only hydraulic power transmission use membranes which transfer forces between two fluids, i. in particular, the membrane is not driven by a linkage.
- the membrane separates two fluids at the same pressure from each other tightly.
- the wrinkling of the membrane can be counteracted by biasing the membrane by making the membrane operating at elevated temperature from a material having a lower thermal expansion than the clamping. Then the membrane is biased in the heated state. This procedure proves to be rather impracticable in practical operation, in trial runs, on startup and shutdown, and in the event of malfunctions, so that one usually foregoes zero crossing.
- the hydraulic energy which can be transmitted with diaphragm pumps with only hydraulic pressure transmission, is calculated from the product of pressure times volume flow.
- the volume flow is calculated from the product of the moving membrane surface times the velocity of the membrane movement.
- the working path of the membrane can be limited on one or both sides by perforated plates in order to prevent the tearing of the membrane by excessive deflection.
- the invention has for its object to provide a diaphragm pump which is suitable for large flow rates, high pressures, high temperatures and aggressive media or extreme purity requirements.
- the object is achieved by an object having the features of claim 1. Characterized in that the membrane device has a wave-shaped structure for improving the mobility of the membrane device, it is ensured that high pressures can be achieved with a relatively small size of the membrane device.
- a membrane device is here understood to mean a single membrane, but also a combination of membranes which separate two liquids in a pumping chamber of the membrane pump.
- the inventive design of the membrane device has the advantage that the membrane device can be pushed significantly deeper into a dome of the pumping chamber than would be possible in a planar design of the membrane according to the prior art; this leads to a smaller design.
- the stress caused in the membrane material by the deformation is also significantly lower at the maximum.
- the membrane diameter is one-third and more reduced, which reduces the expense of the pressure hull • ⁇ critical.
- pumps with much greater capacity are technically possible or economical.
- Another advantage of such a designed membrane device is that it can be pressed through the zero position without having to bias it by tempering and without the membrane device being damaged. On expansion coefficients of the membrane material, no consideration must be taken.
- the membrane device consists at least partially of steel, stainless steel, nickel-based alloys and / or titanium or titanium alloys, in particular titanium grades 5 or 2. It is particularly advantageous if the structure of the waveform corresponds to a dome of the pumping chamber of the diaphragm pump. Thus, a membrane of the membrane device in the end positions of the deflection at the boundary of the pumping chamber, ie the dome supported.
- At least one membrane has a thickness between 0.05 and 2 mm, in particular a thickness of 1 mm.
- the membrane device has more than one membrane, wherein a space having a predeterminable pressure is arranged between each two membranes. It when the space is coupled to the predeterminable pressure with a pressure measuring device for monitoring the stability of the membrane device is particularly advantageous.
- Advantageous embodiments of the membrane device are circular, elliptical, oval or polygonal. These types can be installed well in diaphragm pumps.
- At least one membrane can be pressed through the zero position without fatigue.
- an at least partially plastically deformable membrane material in a pumping chamber with fluid pressure is applied so that the membrane material is at least partially pressed into a dome of the pumping chamber. Since the dome has a wavy structure, the membrane material is provided with the undulating structure. This is advantageously done with a temperature increase above the flow temperature of the membrane material, wherein the membrane material is then cooled under pressure, whereby the structure is fixed.
- the pressure chamber is arranged externally of the diaphragm pump or the pressure chamber is the pumping chamber of the diaphragm pump.
- the membrane device is manufactured in-situ.
- the circular wave structure would regress after the end of fluid application, so that these materials can only be used in such a way that the circular waves according to the invention are pressed into the membrane before use.
- a membrane obtained in this way has the advantage that it can be produced on site by applying fluid to the membrane after it has been clamped or welded in.
- Another advantage of the invention consists in the structuring of the membrane by circular waves, preferably concentrically arranged, which ensure that a trouble-free passage through the zero position is ensured.
- Fig. 1 is a detail view of a pumping chamber of an embodiment of an inventive diaphragm pump
- Fig. 2 ⁇ is a detail view of one embodiment of a membrane device with two membrane layers
- FIG. 3 is a schematic plan view of a round membrane device
- Fig. 4 is a schematic plan view of an elliptical membrane device.
- Fig. 1 is a sectional view of a detail of a diaphragm pump is shown. It is all about the pumping chamber -5 'is disposed in the diaphragm device 10 ".
- the membrane device 10 is designed here as a single membrane, separating the two fluid chambers from one another.
- the lower fluid chamber is connected via a gateway 3 with a pressure medium ( The pressure medium spreads over numerous holes and reaches the lower fluid space.
- the upper fluid space has an inflow 4 'and an outflow 4 ⁇ ' for a fluid on the pressure side.
- the membrane device 10 is shown here laterally in section. Concentric in this a wave-like structure 1 is formed, which serves to improve the mobility of the membrane device 10 in the interior of the pumping chamber 5.
- the pumping chamber 5 itself has at the top and bottom calottes, which are wave-shaped.
- the membrane device 10 is here made of thin sheet metal. In principle, however, other metals or at least partially plastically deformable materials for the membrane device 10 are also conceivable.
- the wave-like structure 1 " for example circular waves, is pressed in place in the pumping chamber 5, in another embodiment also separately, the insertion in the pump body into the corrugated contact surfaces (dome) 2 of the pumping chamber being preferred.
- the clamped or welded-in membrane device 10 is subjected to a fluid pressure (optionally with special temperature control), which presses the membrane device 10 into a cap 2.
- a fluid pressure optionally with special temperature control
- the structures 1 are produced and stabilized in the membrane device 10 (optionally by cooling), so that the membrane device 10 retains the generated shape.
- metallic material for the membrane device such as steel, stainless steel, nickel base alloys and titanium or titanium alloys.
- plastically non-deformable materials such as silicon crystal or glass
- the shape must be produced differently according to the material properties.
- multi-layer membrane devices can also be used.
- the area A in Fig. 1 is shown enlarged, in which case an embodiment of the membrane device 1 has been selected, the a first membrane 11 and a second membrane 12 has. Between the membranes 11, 12, a gap 20 is arranged, wherein in the space 20, a vacuum or a lower pressure than the minimum fluid pressure is locked.
- the operating temperature is between about 360 to 450 ° C.
- the pressures on the suction side are between 70 and 300 bar, on the pressure side between 360 to 500 bar.
- a pressure of 2,000 to 3,000 bar on the pressure side can be used with the pump. Especially in connection with supercritical operating conditions very high pressures can be useful.
- the pump housing in particular the pump chamber, for example, made of titanium or Ni-based alloys.
- FIGS. 3 and 4 differently shaped membrane devices 10 are shown in a plan view.
- the invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a number of variants are conceivable which make use of the membrane pump according to the invention, the method for producing the pump membrane and the use even in fundamentally different embodiments.
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Abstract
Description
Membranpumpe und ein Verfahren zur Herstellung einer PumpenmembranDiaphragm pump and a method of manufacturing a pump diaphragm
Die Erfindung betrifft eine Membranpumpe gemäß dem Oberbegriff des Anspruchs 1, ein Verfahren zur Herstellung einer Pumpenmembran nach Anspruch 10 und eine Verwendung der Membranpumpe gemäß Anspruch 13.The invention relates to a diaphragm pump according to the preamble of claim 1, a method for producing a pump diaphragm according to claim 10 and a use of the diaphragm pump according to claim 13.
Bei Membranpumpen mit ausschließlich hydraulischer Kraftübertragung werden Membranen verwendet, die Kräfte zwischen zwei Fluiden übertragen, d.h. die Membran wird insbesondere nicht durch ein Gestänge angetrieben. Die Membran trennt dabei zwei Fluide bei gleichem Druck voneinander dicht ab.Membrane pumps with only hydraulic power transmission use membranes which transfer forces between two fluids, i. in particular, the membrane is not driven by a linkage. The membrane separates two fluids at the same pressure from each other tightly.
Es ist bekannt, dass bei der Verwendung hoher Temperaturen und/oder aggressiver Medien bzw. extremen Reinheitsanforderungen bei solchen Membranpumpen ebene Membranen aus sehr dünnen, wenig elastisch dehnbaren ■■ ■ ■ Werkstoffen, wie z.B. Metallen, Glas, Silizium oder PEEK verwendet werden. Bei der Verwendung einer ebenen Membran geht der Vorteil, dass die Membranen völlig zugspannungsfrei arbeiten können, verloren, da jede Auslenkung (von einer ebenen Membran ausgehend) mit einer Dehnung verbunden ist. Damit ist die maximale Auslenkung durch die elastische Dehnbarkeit des Membranmaterials begrenzt. Außerdem können diese Membranen nicht ohne weiteres durch die Nulllage (ebene Membran) gedrückt werden, da die Werkstoffe nach einiger Betriebszeit etwas fließen, damit zu groß werden und beim Nulllagendurchgang knittern würden, was zur Zerstörung führt. Damit wird das theoretisch beim entsprechenden Membrandurchmesser erreichbare Fördervolumen noch einmal verringert bzw. der Durchmesser vergrößert. Insbesondere bei hohen Drücken und Temperaturen kommt man schon Fördervolumen von etwas über 1 m3/h zu Druckkörpergrößen an der Grenze des bautechnisch Realisierbaren.It is known that when using high temperatures and / or aggressive media or extreme purity requirements in such membrane pumps planar membranes of very thin, little elastically extensible ■■ ■ ■ materials, such as metals, glass, silicon or PEEK are used. When using a flat membrane, the advantage that the membranes can work completely free of tension is lost, since each deflection (starting from a planar membrane) is associated with an expansion. Thus, the maximum deflection is limited by the elastic extensibility of the membrane material. In addition, these membranes can not be easily pushed through the zero position (flat membrane), since the materials flow somewhat after some operating time, so that they become too large and wrinkle at zero clearance, which leads to destruction. Thus, the theoretically achievable at the corresponding membrane diameter delivery volume is again reduced or increased the diameter. Especially at high pressures and temperatures you can reach delivery volume from just over 1 m 3 / h to pressure hull sizes at the limit of structurally realizable.
Dem Knittern der Membran kann man durch Vorspannen der Membran entgegenwirken, in dem man die bei erhöhter Temperatur arbeitende Membran aus einem Material mit geringerer thermischer Dehnung als die Einspannung fertigt. Dann ist die Membran im erhitzten Zustand vorgespannt . Diese Vorgehensweise erweist sich doch im praktischen Betrieb, bei Probeläufen, beim An- und Abfahren und bei Störungen als recht impraktikabel, so dass man meist auf den Nulldurchgang verzichtet .The wrinkling of the membrane can be counteracted by biasing the membrane by making the membrane operating at elevated temperature from a material having a lower thermal expansion than the clamping. Then the membrane is biased in the heated state. This procedure proves to be rather impracticable in practical operation, in trial runs, on startup and shutdown, and in the event of malfunctions, so that one usually foregoes zero crossing.
Die hydraulische Energie, die bei Membranpumpen mit ausschließlich hydraulischer Druckübertragung übertragen werden kann, berechnet sich aus dem Produkt aus Druck mal Volumenstrom. Der Volumenstrom berechnet sich aus dem Produkt bewegter Membranfläche mal Geschwindigkeit der Membranbewegung. Der Arbeitsweg der Membran kann ein- oder beidseitig durch Lochplatten begrenzt sein, um das Zerreißen der Membran durch zu starke Auslenkung zu verhindern.The hydraulic energy, which can be transmitted with diaphragm pumps with only hydraulic pressure transmission, is calculated from the product of pressure times volume flow. The volume flow is calculated from the product of the moving membrane surface times the velocity of the membrane movement. The working path of the membrane can be limited on one or both sides by perforated plates in order to prevent the tearing of the membrane by excessive deflection.
Die beschriebenen technischen Lösungen erfüllen nicht die Anforderungen, die zum Beispiel für das Pumpen von aggressiven Medien und/oder bei hohen Drücken wie z.B. in Melaminschmelzen erforderlich sind. Auch lassen sich die bekannten Membranen nicht ohne weiteres durch die Nulllage drücken, ohne Schaden zu nehmen.The technical solutions described do not meet the requirements, for example, for pumping aggressive media and / or at high pressures, e.g. in melamine melts are required. Also, the known membranes can not easily press through the zero position without taking damage.
Der Erfindung liegt die Aufgabe zugrunde, eine Membranpumpe zu schaffen, die für große Förderströme, für hohe Drücke, hohe Temperaturen und aggressive Medien bzw. extreme Reinheitsanforderungen geeignet ist.The invention has for its object to provide a diaphragm pump which is suitable for large flow rates, high pressures, high temperatures and aggressive media or extreme purity requirements.
Die Aufgabe wird erfindungsgemäß durch einen Gegenstand mit dem Merkmalen des Anspruchs 1 gelöst. Dadurch, dass die Membranvorrichtung eine wellenförmige Struktur zur Verbesserung der Beweglichkeit der Membranvorrichtung aufweist, wird sichergestellt, dass hohe Drücke bei relativ kleiner Baugröße der Membranvorrichtung erreicht werden können. Unter einer Membranvorrichtung werden hier eine einzelne Membran, aber auch eine Kombination von Membranen verstanden, die in einer Pumpkammer der Membranpumpe zwei Flüssigkeiten trennen.The object is achieved by an object having the features of claim 1. Characterized in that the membrane device has a wave-shaped structure for improving the mobility of the membrane device, it is ensured that high pressures can be achieved with a relatively small size of the membrane device. A membrane device is here understood to mean a single membrane, but also a combination of membranes which separate two liquids in a pumping chamber of the membrane pump.
Die erfindungsgemäße Ausgestaltung der Membranvorrichtung bringt den Vorteil, dass die Membranvorrichtung deutlich tiefer in eine Kalotte der Pumpkammer gedrückt werden kann als dies bei einer ebenen Ausbildung der Membran gemäß dem Stand der Technik möglich wäre; dies führt zu einer kleineren Bauform. Die im Membranmaterial durch die Deformation hervorgerufene Spannung ist auch im Maximum deutlich geringer. Zum Verdrängen gleichen Volumens kann in diesem Fall der Membrandurchmesser auf ein Drittel und stärker reduziert werden, was den Aufwand für den Druckkörper •■ entscheidend senkt. Neben dem Vorteil -der Verkleinerung der Baugröße, werden auch Pumpen mit viel größerer Förderkapazität technisch möglich bzw. wirtschaftlich. Ein weiterer Vorteil einer derart gestalteten Membranvorrichtung besteht darin, dass sie durch die Nulllage gedrückt werden kann ohne sie durch Temperierung vorspannen zu müssen und ohne dass die Membranvorrichtung Schaden nimmt. Auf Dehnungskoeffizienten des Membranmaterials muss keine Rücksicht genommen werden.The inventive design of the membrane device has the advantage that the membrane device can be pushed significantly deeper into a dome of the pumping chamber than would be possible in a planar design of the membrane according to the prior art; this leads to a smaller design. The stress caused in the membrane material by the deformation is also significantly lower at the maximum. To displace the same volume in this case, the membrane diameter is one-third and more reduced, which reduces the expense of the pressure hull • ■ critical. In addition to the advantage of reducing the size, pumps with much greater capacity are technically possible or economical. Another advantage of such a designed membrane device is that it can be pressed through the zero position without having to bias it by tempering and without the membrane device being damaged. On expansion coefficients of the membrane material, no consideration must be taken.
Auch ist es vorteilhaft, wenn die Membranvorrichtung zumindest teilweise aus Stahl, Edelstahl, Nickel- Basislegierungen und/oder Titan- bzw. Titanlegierungen, insbesondere Titan Grade 5 oder 2 besteht. Besonders vorteilhaft ist es, wenn die Struktur der Wellenform einer Kalotte der Pumpkammer der Membranpumpe entspricht. Damit kann sich eine Membran der Membranvorrichtung in den Endlagen der Auslenkung an der Begrenzung der Pumpkammer, d.h. der Kalotte, abstützen.It is also advantageous if the membrane device consists at least partially of steel, stainless steel, nickel-based alloys and / or titanium or titanium alloys, in particular titanium grades 5 or 2. It is particularly advantageous if the structure of the waveform corresponds to a dome of the pumping chamber of the diaphragm pump. Thus, a membrane of the membrane device in the end positions of the deflection at the boundary of the pumping chamber, ie the dome supported.
Bei einer vorteilhaften Ausgestaltung der erfindungsgemäßen Membranpumpe weist mindestens eine Membran eine Dicke zwischen 0,05 und 2 mm, insbesondere eine Dicke von 1 mm auf.In an advantageous embodiment of the membrane pump according to the invention, at least one membrane has a thickness between 0.05 and 2 mm, in particular a thickness of 1 mm.
Ferner ist es vorteilhaft, wenn die Membranvorrichtung mehr als eine Membran aufweist, wobei zwischen jeweils zwei Membranen ein Raum mit vorbestimmbarem Druck angeordnet ist. Besonders vorteilhaft ist es, wenn der Raum mit dem vorbestimmbaren Druck mit einer Druckmessvorrichtung zur Überwachung der Stabilität der Membranvorrichtung gekoppelt ist.Furthermore, it is advantageous if the membrane device has more than one membrane, wherein a space having a predeterminable pressure is arranged between each two membranes. It when the space is coupled to the predeterminable pressure with a pressure measuring device for monitoring the stability of the membrane device is particularly advantageous.
Vorteilhafte Ausbildungen der Membranvorrichtung sind kreisförmig, ellipsenförmig, oval oder polygonal. Diese Bauformen lassen sich in Membranpumpen gut einbauen.Advantageous embodiments of the membrane device are circular, elliptical, oval or polygonal. These types can be installed well in diaphragm pumps.
Mit Vorteil ist mindestens eine Membran ermüdungsfrei durch die Nulllage drückbar.Advantageously, at least one membrane can be pressed through the zero position without fatigue.
Die Aufgabe wird auch durch ein Verfahren mit den Merkmalen des Anspruchs 10 gelöst.The object is also achieved by a method having the features of claim 10.
Dabei wird ein zumindest teilweise plastisch verformbares Membranmaterial in einer Pumpkammer mit Fluiddruck derart beaufschlagt, dass das Membranmaterial mindestens teilweise in eine Kalotte der Pumpkammer gedrückt wird. Da die Kalotte eine wellenförmige Struktur aufweist, wird das Membranmaterial mit der wellenförmigen Struktur versehen. Dies geschieht vorteilhafterweise unter einer Temperaturerhöhung oberhalb der Fließtemperatur des Membranmaterials, wobei das Membranmaterial dann unter Druck abgekühlt wird, wodurch die Struktur fixiert wird.In this case, an at least partially plastically deformable membrane material in a pumping chamber with fluid pressure is applied so that the membrane material is at least partially pressed into a dome of the pumping chamber. Since the dome has a wavy structure, the membrane material is provided with the undulating structure. This is advantageously done with a temperature increase above the flow temperature of the membrane material, wherein the membrane material is then cooled under pressure, whereby the structure is fixed.
Dabei ist es vorteilhaft, wenn die Druckkammer extern von der Membranpumpe angeordnet ist oder die Druckkammer die Pumpkammer der Membranpumpe ist. Wenn die Druckkammer die Pumpkammer der Membranpumpe ist, wird die Membranvorrichtung in-situ hergestellt.It is advantageous if the pressure chamber is arranged externally of the diaphragm pump or the pressure chamber is the pumping chamber of the diaphragm pump. When the pressure chamber is the pumping chamber of the diaphragm pump, the membrane device is manufactured in-situ.
Ferner löst auch eine Verwendung der Membranpumpe nach mindestens einem der Ansprüche 1 bis 9 zum Fördern von Melaminschmelze die Aufgabe.Furthermore, a use of the membrane pump according to at least one of claims 1 to 9 for conveying melamine melt solves the task.
Verwendet man als Membran ein plastisch verformbares Elastomer wie Teflon, würde sich die Kreiswellenstruktur nach Ende der Fluidbeaufschlagung rückbilden, so dass mit diesen Materialien nur dergestalt gearbeitet werden kann, dass die • erfindungsgemäßen Kreiswellen vor dem Einsatz der Membran in diese eingepresst werden.If a plastically deformable elastomer such as Teflon is used as the membrane, the circular wave structure would regress after the end of fluid application, so that these materials can only be used in such a way that the circular waves according to the invention are pressed into the membrane before use.
Eine derart erhaltene Membran hat den Vorteil, dass sie vor Ort hergestellt werden kann, indem die Fluidbeaufschlagung auf die Membran nach deren Einspannen oder Einschweißen geschieht. Ein weiterer erfindungsgemäßer Vorteil besteht in der Strukturierung der Membran durch Kreiswellen, bevorzugt konzentrisch angeordnet, die bewirken, dass ein störungsfreies Durchschreiten der Nulllage gesichert ist.A membrane obtained in this way has the advantage that it can be produced on site by applying fluid to the membrane after it has been clamped or welded in. Another advantage of the invention consists in the structuring of the membrane by circular waves, preferably concentrically arranged, which ensure that a trouble-free passage through the zero position is ensured.
Die Membranen arbeiten zuverlässig bei Temperaturen um 400°C und bei Drücken bis 700 bar. Die Erfindung wird nachfolgend unter Bezugnahme auf die Figuren der Zeichnungen an mehreren Ausführungsbeispielen näher erläutert. Es zeigen:The membranes work reliably at temperatures around 400 ° C and at pressures up to 700 bar. The invention will be explained in more detail below with reference to the figures of the drawings of several embodiments. Show it:
Fig. 1 eine Detailansicht einer Pumpkammer einer Ausführungsform einer erfinderischen Membranpumpe;Fig. 1 is a detail view of a pumping chamber of an embodiment of an inventive diaphragm pump;
Fig. 2 ~" eine Detailansicht einer Ausführungsform einer Membranvorrichtung mit zwei Membranlagen;Fig. 2 ~ is a detail view of one embodiment of a membrane device with two membrane layers;
Fig. 3 eine schematische Draufsicht auf eine runde Membranvorrichtung;3 is a schematic plan view of a round membrane device;
Fig. 4 eine schematische Draufsicht auf eine elliptische Membranvorrichtung.Fig. 4 is a schematic plan view of an elliptical membrane device.
In Fig. 1 ist eine Schnittansicht eines Details einer Membranpumpe dargestellt. Hier geht es vor allem um die Pumpkammer -5, in der eine Membranvorrichtung 10" angeordnet ' ist. Die Membranvorrichtung 10 ist hier als eine einzelne Membran ausgebildet, die zwei Fluidräume voneinander trennt. Der untere Fluidraum ist über einem Zugang 3 mit einem Druckmedium (z.B. Öl) oszillierend beaufschlagbar. Das Druckmedium verteilt sich auf zahlreiche Bohrungen und erreicht den unteren Fluidraum.In Fig. 1 is a sectional view of a detail of a diaphragm pump is shown. It is all about the pumping chamber -5 'is disposed in the diaphragm device 10 ". The membrane device 10 is designed here as a single membrane, separating the two fluid chambers from one another. The lower fluid chamber is connected via a gateway 3 with a pressure medium ( The pressure medium spreads over numerous holes and reaches the lower fluid space.
Der obere Fluidraum weist einen Zufluss 4' und einen Abfluss 4Λ' für ein Fluid auf der Druckseite auf.The upper fluid space has an inflow 4 'and an outflow 4 Λ ' for a fluid on the pressure side.
Die Membranvorrichtung 10 ist hier seitlich im Schnitt dargestellt. Konzentrisch ist in dieser eine wellenartige Struktur 1 ausgebildet, die der Verbesserung der Beweglichkeit der Membranvorrichtung 10 im Inneren der Pumpkammer 5 dient. Die Pumpkammer 5 selbst weist an der Ober- und Unterseite Kalotten auf, die wellenförmig ausgebildet sind.The membrane device 10 is shown here laterally in section. Concentric in this a wave-like structure 1 is formed, which serves to improve the mobility of the membrane device 10 in the interior of the pumping chamber 5. The pumping chamber 5 itself has at the top and bottom calottes, which are wave-shaped.
Die Membranvorrichtung 10 ist hier aus dünnem Blech gefertigt. Grundsätzlich sind aber auch andere Metalle oder zumindest teilweise plastisch verformbare Materialien für die Membranvorrichtung 10 denkbar.The membrane device 10 is here made of thin sheet metal. In principle, however, other metals or at least partially plastically deformable materials for the membrane device 10 are also conceivable.
Das Einpressen der wellenartigen Struktur 1," z.B. Kreiswellen, erfolgt in einer Ausführungsform der Erfindung vor Ort in der Pumpkammer 5, in einer anderen Ausführungsform auch gesondert, wobei die Einpressung im Pumpenkörper in die gewellten Anlaufflächen (Kalotte) 2 der Pumpkammer bevorzugt ist.In one embodiment of the invention, the wave-like structure 1 ", for example circular waves, is pressed in place in the pumping chamber 5, in another embodiment also separately, the insertion in the pump body into the corrugated contact surfaces (dome) 2 of the pumping chamber being preferred.
Die eingespannte oder eingeschweißte Membranvorrichtung 10 wird mit einem Fluiddruck beaufschlagt (gegebenenfalls bei spezieller Temperierung) , der die Membranvorrichtung 10 in eine Kalotte 2 drückt. Dabei werden die Strukturen 1 in der Membranvorrichtung 10 erzeugt und -stabilisiert (gegebenenfalls durch Abkühlung) , so dass die Membranvorrichtung 10 die erzeugte Form behält.The clamped or welded-in membrane device 10 is subjected to a fluid pressure (optionally with special temperature control), which presses the membrane device 10 into a cap 2. In this case, the structures 1 are produced and stabilized in the membrane device 10 (optionally by cooling), so that the membrane device 10 retains the generated shape.
Das ist erfolgreich bei metallischem Material für die Membranvorrichtung wie Stahl, Edelstahl, Nickel- Basislegierungen und Titan- bzw. Titanlegierungen.This is successful with metallic material for the membrane device such as steel, stainless steel, nickel base alloys and titanium or titanium alloys.
Bei plastisch nicht deformierbaren Materialien wie Siliziumkristall oder Glas muss die Form den Materialeigenschaften entsprechend anders erzeugt werden.In the case of plastically non-deformable materials such as silicon crystal or glass, the shape must be produced differently according to the material properties.
Wie in Fig. 2 dargestellt, können auch mehrlagige Membranvorrichtungen eingesetzt werden. In Fig. 2 ist der Bereich A in Fig. 1 vergrößert dargestellt, wobei hier eine Ausführungsform der Membranvorrichtung 1 gewählt wurde, die eine erste Membran 11 und eine zweite Membran 12 aufweist. Zwischen den Membranen 11, 12 ist ein Zwischenraum 20 angeordnet, wobei im Zwischenraum 20 ein Vakuum oder ein geringerer Druck als der minimale Fluiddruck eingesperrt wird.As shown in Fig. 2, multi-layer membrane devices can also be used. In Fig. 2 the area A in Fig. 1 is shown enlarged, in which case an embodiment of the membrane device 1 has been selected, the a first membrane 11 and a second membrane 12 has. Between the membranes 11, 12, a gap 20 is arranged, wherein in the space 20, a vacuum or a lower pressure than the minimum fluid pressure is locked.
Dieser Druck im Zwischenraum 20 wird permanent überwacht, denn wenn dieser plötzlich auf den Fluiddruck ansteigt, zeigt das den Bruch einer Membranschicht an. In Fig. 2 ist rechts der Anschluss für diese Membranbruchanzeige dargestellt. Da beide dichten Membranlagen 11, 12 nur unwahrscheinlich zum exakt gleichen Zeitpunkt brechen kann durch rechtzeitiges Abfahren meist ein Schaden im Hydraulik- und Triebwerksteil durch Produkt oder umgekehrt eine Verunreinigung der Anlage durch Hydraulikmedium vermieden werden.This pressure in the gap 20 is constantly monitored, because when it suddenly rises to the fluid pressure, this indicates the breakage of a membrane layer. In Fig. 2, the connection for this diaphragm rupture display is shown on the right. Since both dense membrane layers 11, 12 unlikely to break at the exact same time can be avoided by timely shutdown usually damage in the hydraulic and engine part by product or vice versa contamination of the system by hydraulic medium.
Im Folgenden werden Anwendungsbeispiele fürThe following are application examples for
Ausführungsformen der erfindungsgemäßen Membranpumpe beschrieben.Embodiments of the diaphragm pump according to the invention described.
Eine Verwendung wäre eine Schmelzepumpe für Melamin und Melaminnebenprodukte . Die Betriebstemperatur beträgt dabei zwischen ca. 360 bis 450 °C. Die Drücke auf der Saugseite liegen zwischen 70 und 300 bar, auf der Druckseite zwischen 360 bis 500 bar.One use would be a melt pump for melamine and melamine by-products. The operating temperature is between about 360 to 450 ° C. The pressures on the suction side are between 70 and 300 bar, on the pressure side between 360 to 500 bar.
Grundsätzlich kann mit der Pumpe auch ein Druck von 2.000 bis 3.000 bar auf der Druckseite eingesetzt werden. Gerade in Verbindung mit überkritischen Betriebsbedingungen können sehr hohe Drücke sinnvoll sein.Basically, a pressure of 2,000 to 3,000 bar on the pressure side can be used with the pump. Especially in connection with supercritical operating conditions very high pressures can be useful.
Als Fördergut können auch Harnstoff, Nebenprodukte, Ammoniak, Kohlendioxid bei entsprechenden Temperaturen dienen. Das Pumpengehäuse, insbesondere die Pumpenkammer wird z.B. aus Titan oder Ni-Basislegierungen hergestellt.As conveyed can also serve urea, by-products, ammonia, carbon dioxide at appropriate temperatures. The pump housing, in particular the pump chamber, for example, made of titanium or Ni-based alloys.
In den Fig. 3 und 4 sind unterschiedlich ausgebildete Membranvorrichtungen 10 in einer Draufsicht dargestellt.In FIGS. 3 and 4 differently shaped membrane devices 10 are shown in a plan view.
Die Erfindung beschränkt sich in ihrer Ausführung nicht auf die vorstehend angegebenen bevorzugten Ausführungsbeispiele. Vielmehr ist eine Anzahl von Varianten denkbar, die von der erfindungsgemäßen Membranpumpe, dem Verfahren zur Herstellung der Pumpenmembran und der Verwendung auch bei grundsätzlich anders gearteten Ausführungen Gebrauch machen. The invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a number of variants are conceivable which make use of the membrane pump according to the invention, the method for producing the pump membrane and the use even in fundamentally different embodiments.
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06723213A EP1856415B1 (en) | 2005-03-02 | 2006-02-28 | Diaphragm pump and method for the production thereof |
| AT06723213T ATE435977T1 (en) | 2005-03-02 | 2006-02-28 | DIAPHRAGM PUMP AND A METHOD FOR PRODUCING A PUMP MEMBRANE |
| DE502006004175T DE502006004175D1 (en) | 2005-03-02 | 2006-02-28 | MEMBRANE PUMP AND A METHOD FOR PRODUCING A PUMP MEMBRANE |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005010291.3 | 2005-03-02 | ||
| DE102005010291A DE102005010291A1 (en) | 2005-03-02 | 2005-03-02 | Diaphragm pump and a method of manufacturing a pump diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006092333A1 true WO2006092333A1 (en) | 2006-09-08 |
Family
ID=36571981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/001985 Ceased WO2006092333A1 (en) | 2005-03-02 | 2006-02-28 | Diaphragm pump and method for the production thereof |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1856415B1 (en) |
| AT (1) | ATE435977T1 (en) |
| DE (2) | DE102005010291A1 (en) |
| WO (1) | WO2006092333A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9084845B2 (en) | 2011-11-02 | 2015-07-21 | Smith & Nephew Plc | Reduced pressure therapy apparatuses and methods of using same |
| US9427505B2 (en) | 2012-05-15 | 2016-08-30 | Smith & Nephew Plc | Negative pressure wound therapy apparatus |
| US9901664B2 (en) | 2012-03-20 | 2018-02-27 | Smith & Nephew Plc | Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination |
| US9956121B2 (en) | 2007-11-21 | 2018-05-01 | Smith & Nephew Plc | Wound dressing |
| US10307517B2 (en) | 2010-09-20 | 2019-06-04 | Smith & Nephew Plc | Systems and methods for controlling operation of a reduced pressure therapy system |
| US10682446B2 (en) | 2014-12-22 | 2020-06-16 | Smith & Nephew Plc | Dressing status detection for negative pressure wound therapy |
| US12029549B2 (en) | 2007-12-06 | 2024-07-09 | Smith & Nephew Plc | Apparatus and method for wound volume measurement |
| US12097095B2 (en) | 2011-05-26 | 2024-09-24 | Smith & Nephew, Inc. | Method and apparatus for providing negative pressure to a negative pressure wound therapy bandage |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2934332B1 (en) * | 2008-07-28 | 2011-07-29 | Milton Roy Europe | MEMBRANE DOSING PUMP WITH HYDRAULIC CONTROL |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE627016C (en) * | 1931-09-15 | 1936-03-07 | Permutit Akt Ges | Device for proportionally adding liquids or gases to a flow of liquid to be treated by means of a pump influenced by a water meter or the like |
| US3072462A (en) * | 1959-09-17 | 1963-01-08 | Controls Co Of America | Mixing apparatus |
| US4334838A (en) * | 1980-01-29 | 1982-06-15 | The Coca-Cola Company | Diaphragm type fluid pump having a flexible diaphragm with an internal reinforcing plate |
| DE3632717A1 (en) * | 1986-09-26 | 1988-03-31 | Karl Eickmann | Unit with a diaphragm |
| DE4327969A1 (en) * | 1993-08-19 | 1995-03-02 | Ott Kg Lewa | Hydraulically driven diaphragm pump |
| DE4422970A1 (en) * | 1994-06-30 | 1996-01-04 | Bosch Gmbh Robert | Atomizer for miniature multi-layer valve |
| DE19511677A1 (en) * | 1995-03-16 | 1996-09-19 | Abel Gmbh & Co | Membrane piston pump, e.g. for abrasive or chemically aggressive media |
| EP0809028A2 (en) * | 1996-05-23 | 1997-11-26 | Graco Inc. | Neutral shaped pump diaphragm |
| US5902096A (en) * | 1994-10-07 | 1999-05-11 | Bayer Corporation | Diaphragm pump having multiple rigid layers with inlet and outlet check valves |
-
2005
- 2005-03-02 DE DE102005010291A patent/DE102005010291A1/en not_active Withdrawn
-
2006
- 2006-02-28 EP EP06723213A patent/EP1856415B1/en not_active Not-in-force
- 2006-02-28 WO PCT/EP2006/001985 patent/WO2006092333A1/en not_active Ceased
- 2006-02-28 DE DE502006004175T patent/DE502006004175D1/en not_active Expired - Fee Related
- 2006-02-28 AT AT06723213T patent/ATE435977T1/en active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE627016C (en) * | 1931-09-15 | 1936-03-07 | Permutit Akt Ges | Device for proportionally adding liquids or gases to a flow of liquid to be treated by means of a pump influenced by a water meter or the like |
| US3072462A (en) * | 1959-09-17 | 1963-01-08 | Controls Co Of America | Mixing apparatus |
| US4334838A (en) * | 1980-01-29 | 1982-06-15 | The Coca-Cola Company | Diaphragm type fluid pump having a flexible diaphragm with an internal reinforcing plate |
| DE3632717A1 (en) * | 1986-09-26 | 1988-03-31 | Karl Eickmann | Unit with a diaphragm |
| DE4327969A1 (en) * | 1993-08-19 | 1995-03-02 | Ott Kg Lewa | Hydraulically driven diaphragm pump |
| DE4422970A1 (en) * | 1994-06-30 | 1996-01-04 | Bosch Gmbh Robert | Atomizer for miniature multi-layer valve |
| US5902096A (en) * | 1994-10-07 | 1999-05-11 | Bayer Corporation | Diaphragm pump having multiple rigid layers with inlet and outlet check valves |
| DE19511677A1 (en) * | 1995-03-16 | 1996-09-19 | Abel Gmbh & Co | Membrane piston pump, e.g. for abrasive or chemically aggressive media |
| EP0809028A2 (en) * | 1996-05-23 | 1997-11-26 | Graco Inc. | Neutral shaped pump diaphragm |
Cited By (34)
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|---|---|---|---|---|
| US10555839B2 (en) | 2007-11-21 | 2020-02-11 | Smith & Nephew Plc | Wound dressing |
| US11129751B2 (en) | 2007-11-21 | 2021-09-28 | Smith & Nephew Plc | Wound dressing |
| US11364151B2 (en) | 2007-11-21 | 2022-06-21 | Smith & Nephew Plc | Wound dressing |
| US10744041B2 (en) | 2007-11-21 | 2020-08-18 | Smith & Nephew Plc | Wound dressing |
| US9956121B2 (en) | 2007-11-21 | 2018-05-01 | Smith & Nephew Plc | Wound dressing |
| US10016309B2 (en) | 2007-11-21 | 2018-07-10 | Smith & Nephew Plc | Wound dressing |
| US11179276B2 (en) | 2007-11-21 | 2021-11-23 | Smith & Nephew Plc | Wound dressing |
| US10231875B2 (en) | 2007-11-21 | 2019-03-19 | Smith & Nephew Plc | Wound dressing |
| US11351064B2 (en) | 2007-11-21 | 2022-06-07 | Smith & Nephew Plc | Wound dressing |
| US12491121B2 (en) | 2007-11-21 | 2025-12-09 | Smith & Nephew Plc | Wound dressing |
| US12029549B2 (en) | 2007-12-06 | 2024-07-09 | Smith & Nephew Plc | Apparatus and method for wound volume measurement |
| US10307517B2 (en) | 2010-09-20 | 2019-06-04 | Smith & Nephew Plc | Systems and methods for controlling operation of a reduced pressure therapy system |
| US11623039B2 (en) | 2010-09-20 | 2023-04-11 | Smith & Nephew Plc | Systems and methods for controlling operation of a reduced pressure therapy system |
| US11534540B2 (en) | 2010-09-20 | 2022-12-27 | Smith & Nephew Plc | Pressure control apparatus |
| US12226611B2 (en) | 2010-09-20 | 2025-02-18 | Smith & Nephew Plc | Pressure control apparatus |
| US11027051B2 (en) | 2010-09-20 | 2021-06-08 | Smith & Nephew Plc | Pressure control apparatus |
| US12097095B2 (en) | 2011-05-26 | 2024-09-24 | Smith & Nephew, Inc. | Method and apparatus for providing negative pressure to a negative pressure wound therapy bandage |
| US11648342B2 (en) | 2011-11-02 | 2023-05-16 | Smith & Nephew Plc | Reduced pressure therapy apparatuses and methods of using same |
| US9084845B2 (en) | 2011-11-02 | 2015-07-21 | Smith & Nephew Plc | Reduced pressure therapy apparatuses and methods of using same |
| US11253639B2 (en) | 2011-11-02 | 2022-02-22 | Smith & Nephew Plc | Reduced pressure therapy apparatuses and methods of using same |
| US10143783B2 (en) | 2011-11-02 | 2018-12-04 | Smith & Nephew Plc | Reduced pressure therapy apparatuses and methods of using same |
| US10881764B2 (en) | 2012-03-20 | 2021-01-05 | Smith & Nephew Plc | Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination |
| US11730877B2 (en) | 2012-03-20 | 2023-08-22 | Smith & Nephew Plc | Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination |
| US9901664B2 (en) | 2012-03-20 | 2018-02-27 | Smith & Nephew Plc | Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination |
| US10702418B2 (en) | 2012-05-15 | 2020-07-07 | Smith & Nephew Plc | Negative pressure wound therapy apparatus |
| US10299964B2 (en) | 2012-05-15 | 2019-05-28 | Smith & Nephew Plc | Negative pressure wound therapy apparatus |
| US12116991B2 (en) | 2012-05-15 | 2024-10-15 | Smith & Nephew Plc | Negative pressure wound therapy apparatus |
| US9545465B2 (en) | 2012-05-15 | 2017-01-17 | Smith & Newphew Plc | Negative pressure wound therapy apparatus |
| US9427505B2 (en) | 2012-05-15 | 2016-08-30 | Smith & Nephew Plc | Negative pressure wound therapy apparatus |
| US10973965B2 (en) | 2014-12-22 | 2021-04-13 | Smith & Nephew Plc | Systems and methods of calibrating operating parameters of negative pressure wound therapy apparatuses |
| US10780202B2 (en) | 2014-12-22 | 2020-09-22 | Smith & Nephew Plc | Noise reduction for negative pressure wound therapy apparatuses |
| US10737002B2 (en) | 2014-12-22 | 2020-08-11 | Smith & Nephew Plc | Pressure sampling systems and methods for negative pressure wound therapy |
| US10682446B2 (en) | 2014-12-22 | 2020-06-16 | Smith & Nephew Plc | Dressing status detection for negative pressure wound therapy |
| US11654228B2 (en) | 2014-12-22 | 2023-05-23 | Smith & Nephew Plc | Status indication for negative pressure wound therapy |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1856415A1 (en) | 2007-11-21 |
| EP1856415B1 (en) | 2009-07-08 |
| DE502006004175D1 (en) | 2009-08-20 |
| ATE435977T1 (en) | 2009-07-15 |
| DE102005010291A1 (en) | 2006-09-07 |
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