EP3030784B1 - Positive displacement pump - Google Patents
Positive displacement pump Download PDFInfo
- Publication number
- EP3030784B1 EP3030784B1 EP14736732.0A EP14736732A EP3030784B1 EP 3030784 B1 EP3030784 B1 EP 3030784B1 EP 14736732 A EP14736732 A EP 14736732A EP 3030784 B1 EP3030784 B1 EP 3030784B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- valve unit
- pump
- inline
- inline valve
- 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.)
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Links
- 238000006073 displacement reaction Methods 0.000 title claims description 56
- 125000006850 spacer group Chemical group 0.000 claims description 38
- 238000012423 maintenance Methods 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 14
- 239000012530 fluid Substances 0.000 description 12
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000126 substance 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
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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
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Definitions
- the invention relates to a positive displacement pump with a drive unit and a pump unit.
- Displacement pumps are already known in many designs.
- a disadvantage of the known positive displacement pumps is that they are either not suitable for high pressures and high volume flows or that they are difficult to maintain.
- From the DE 1 528 456 A is a positive displacement pump with a drive unit and a pump unit with at least one inline valve unit, wherein the inline valve unit is clamped in an operating position between two flanges known.
- the invention has set itself the task of creating a positive displacement pump which is improved, at least with regard to one of the disadvantages mentioned.
- the term "displacement pump” refers to a pump which has at least one displacement element in at least one working space through which the medium to be pumped, that is to say the conveying medium, flows.
- the positive displacement pump according to the invention has a drive unit.
- a pump unit is provided with at least one inline valve unit.
- two inline valve units are provided per working space.
- the distance between two adjacent connection and / or spacer means is preferably greater than the outer dimensions - such as the diameter - of the inline valve unit.
- the connecting and / or spacing means are either arranged such that adjacent connecting and / or spacing means always have the same distance from one another or in such a way that different distances between adjacent connecting and / or spacing means result.
- the connecting and / or spacing means are arranged such that the greatest distance (more precisely, the clear width) between two adjacent connection and / or spacer means is greater than the outer dimensions - such as the diameter - of the in-line valve unit.
- a valve displacement device is provided by means of which the inline valve unit can be displaced from an operating position into a maintenance position.
- the valve unit is preferably displaceable on a path deviating from a circular path.
- the valve displacement device is preferably fixedly connected to the rest of the pump.
- the inline valve unit is preferably braced exclusively with the flanges.
- inline valve unit is referred to in the context of this publication, in particular a valve unit, which is flowed through in a straight line.
- flows straight through in the context of this document specifically means that the flow direction immediately before the valve at least approximately corresponds to the flow direction immediately after the valve. This distinguishes inline valve units of angle valve units, in which the fluid enters, for example, on the bottom and at an angle of 90 degrees laterally exit.
- An advantage of in-line valve units over corner valve units is that a pipe bend connecting the valve unit to the diaphragm housing can be dispensed with and the flow loss associated with the deflection and the dead volume can be dispensed with. Even with corner valve units increased wear due to uneven load is eliminated.
- the inline valve units are preferably flowed through at least approximately vertically. This means in particular that the flow direction is at least approximately perpendicular immediately before and immediately after the valve unit. It is also conceivable that the valve units are not flowed through at least approximately vertically.
- the displacement device can also significantly simplify the maintenance of the in-line valve units by making the valve units accessible to a crane installation.
- the inline valve unit is preferably no longer arranged between the flanges, but freely accessible from all sides.
- the pump unit is a flat membrane pump unit.
- the displacement element thus preferably comprises a flat membrane.
- the displacer element is preferably actuated by a working fluid, which in turn is preferably pressurized by an oscillating piston of a drive unit.
- the piston pressurizing the working fluid is completely separated from the fluid to be pumped by the diaphragm.
- this is more preferably arranged in its central position perpendicular to the direction of movement of the oscillating piston of the drive unit.
- the diaphragm is not aligned in its central position perpendicular to the direction of movement of the oscillating piston of the drive unit.
- connection and / or spacer means preferably comprise threaded bolts, which more preferably pass through spacer sleeves.
- connection and / or spacer means are preferably arranged such that different distances between two adjacent connection and / or spacer means result.
- connection and / or spacer means are arranged such that the greatest distance between adjacent connection and / or spacer means is provided in the region of the movement path of the inline valve unit.
- the connecting and / or spacing means are arranged such that the largest distance (more precisely, the inside width) between two adjacent connecting and / or spacing means is only slightly larger than the outer dimensions - such as the diameter - of the in-line valve unit , then on the one hand a prerequisite for a compact pump unit is created. In addition, the bending load on the flanges caused by the distortion of the valve units is reduced, compared to an arrangement with adjacent connecting and / or spacing means of greater spacing. On the other hand, this continues to be a prerequisite for a displacement of the inline valve unit between two connecting and / or spacer means, without their disassembly, created.
- the largest distance (more precisely, the inside width) between two adjacent connecting and / or spacing means can be only less than thirty and in particular only less than ten percent of the outer dimensions of the inline valve unit greater than this.
- the inline valve unit is displaceable by means of the valve displacement device on a movement path deviating from the circular path, even with such a small (largest) distance between adjacent connection and / or spacer means, a displacement of the inline valve unit from an operating position take place in a maintenance position by means of the valve displacement device, without disassembly of a connecting and / or spacer means is required.
- a maintenance position can be achieved, which is characterized by a desirable large distance from the rest of the pump unit, without the need for a complex, in turn, much tree space-consuming displacement device would be required.
- the in-line valve unit is displaceable already after loosening a threaded element of the clamping device. To relocate the inline valve unit, so a threaded element of the clamping device - if necessary after hydraulic relief of the threaded element - and no threaded element of the remaining pump to be solved.
- the inline valve unit after the release of a single threaded element, preferably a lock nut of the clamping device, displaced.
- the valve displacement device comprises an articulated articulated arm.
- the articulated arm is mounted on a connection and / or spacer. An arranged between the flanges, only the storage of the articulated arm on the other pump unit serving element can therefore, as preferred, omitted. More preferably, the articulated arm is also hinged to the inline valve unit.
- the inline valve unit is at least partially displaceable on a translational movement path. In another embodiment, the in-line valve unit is displaceable exclusively on a translatory movement path.
- the valve displacement device comprises a telescopic arm.
- valve displacement device comprises lateral telescopic rails - preferably two per inline valve unit - there is a suitable, then drawer-like, displaceability of the valve unit.
- the hydraulic tensioning device preferably adjoins one of the flanges.
- the hydraulic tensioning device preferably adjoins the lower flange.
- the hydraulic tensioning device is therefore preferably arranged between the lower flange and the in-line valve unit.
- the hydraulic tensioner is a stand-alone unit, which preferably is not fixedly connected to the pump unit, such as an adjacent flange, then it can be easily replaced or serviced (e.g., replacement of gaskets).
- the hydraulic tensioning device is removable without tools in the relaxed state.
- the hydraulic tensioning device particularly preferably exactly - a hydraulic cylinder element.
- the hydraulic cylinder element provides exactly one hydraulic cylinder in one embodiment.
- the hydraulic cylinder element preferably provides a plurality of cylindrical hydraulic cylinders. And with advantage, a plurality of single hydraulic piston is provided.
- the single hydraulic piston can also be referred to as a pressure piston. Preferably, they are cylindrical.
- the hydraulic tensioner is double-acting in one embodiment.
- the hydraulic pistons can be pressurized selectively on two different sides of an effective surface and thereby moved in two directions.
- FIG. 2 shows that in the operating position each inline valve unit 1, 1 'between two flanges 2, 2' is braced. Two parallel and spaced apart flanges 2, 2 'thus form a flange pair 2a, between which the inline valve unit 1, 1' is braced.
- Fig. 2 also shows that a valve displacement device 3 fixedly connected to the rest of the pump is provided, with the aid of which each inline valve unit 1, 1 'is clamped from an operating position B in which the inline valve unit 1 is braced between the flange pair 2a into a maintenance position W, in which the in-line valve unit 1 'is not arranged between the pair of flanges, is displaceable.
- connection and spacer means 4 are designed in all embodiments shown as connecting and spacer means 4, which connect the flanges firmly together at a predetermined, fixed distance.
- connecting means the connection and spacer means 4 in all the embodiments shown with the flanges 2, 2 'screwed by means of nuts threaded bolt. As a spacer they have between the flanges arranged spacers, which are penetrated by the threaded bolt.
- Fig. 7 shows that four connecting and spacer means 4 are provided per valve unit 1, 1 ', which are arranged in the form of a rectangle. There are therefore two different distances K, L between adjacent connection and spacer means 4.
- the Fig. It can also be seen that the connecting and spacer means 4 are arranged so that the larger the two distances L is perpendicular to the direction of displacement V of the inline valve unit 1, 1 'extends and is slightly larger than the outer dimensions M of the inline valve unit 1.
- the largest distance L between two adjacent connecting and spacing means 4 is thus in the range Movement path of the inline valve unit 1, 1 'provided.
- the perpendicularly running smaller distance K between two adjacent connection and spacer means 4 may be smaller than the outer dimensions M of the in-line valve unit 1 (FIG. Fig. 5 ).
- valve displacement device 3 comprises an articulated arm 5 which articulates in itself.
- valve displacement device 3 comprises a telescopic arm 6.
- valve displacement device 3 comprises two telescopic rails 7, 7 '.
- a plurality of inline valve units 1, 1 ' namely two inline valve units 1, 1' and a plurality of displacement devices 3, namely two displacement devices 3, are provided on each pair of flanges 2a.
- the displacement device 3 comprises in This embodiment, as in the in the Fig. 2 to 7 shown embodiment, an articulated arm. 5
- Fig. 3 shows that the hydraulic tensioning device 8 forms a self-contained unit, which is not firmly connected to the pump unit 100, such as the adjacent lower flange 2. It is in the relaxed state without tools, so without the aid of tools, removable.
- the hydraulic tensioner 8 has a hydraulic cylinder element 9 which is annular and in which a plurality of cylinder bores 9a are arranged.
- Fig. 3 also shows that the flange 2, on which the hydraulic tensioning device 8 is arranged, has an annular projection 2b.
- the outer diameter of the annular projection 2b is slightly smaller than the inner diameter of the annular hydraulic cylinder member 9, so that the hydraulic cylinder element 9 on the annular projection 2b of the flange 2 - guided by means of a linear sliding bearing - and at the same time centered.
- each cylinder bore 9a a cylindrical single hydraulic piston 10 is arranged in each cylinder bore 9a.
- Each single hydraulic piston 10 has a collar 23.
- each cylinder bore 9a can be filled above the piston collar 23 with hydraulic fluid and pressurized.
- the hydraulic cylinder element 9 lifts and thereby biases the in-line valve unit 1, 1 '.
- the hydraulic cylinder element 9 is based on the hydraulic fluid to the single hydraulic piston 10, which in turn are supported on the flange 2.
- This tensioned state of the hydraulic tensioning device 8 is, for example, in Fig. 3 shown.
- the lock nut 12 can be screwed down so far, until it is also supported on the lower flange 2 (only in Fig. 12a shown).
- the hydraulic cylinder element 9 is fixed in this way and the hydraulic system of the hydraulic tensioning device 8 can be relieved.
- the inline valve unit 1 is thus stretched securely between the flange pair 2a.
- Fig. 17 shows this state, the lock nut 12 also in Fig. 17 not screwed down yet.
- the single hydraulic piston 10 have, such as the FIGS. 17 and 18 point away from the respective in-line valve unit 1, 1 'and the hydraulic cylinder element 9 faces the in-line valve unit 1, 1' and is in contact therewith.
- the pressure fluid of the hydraulic tensioning device is first pressurized again. Then the lock nut 12 can be easily solved. If then the pressure of the hydraulic fluid is reduced in the cylinder bores, then arranged between the collar 23 of the piston 10 and a collar 22 of the hydraulic cylinder member 9 piston return spring 11 ensures that the piston 10 hineinverlagern into the hydraulic cylinder element 9, as in Fig. 18 is shown. In the unstressed state of the hydraulic tensioning device 8 shown there, the in-line valve unit 1 can be displaced. A return connection between the hydraulic cylinder element 9 and the adjacent to the hydraulic tensioning device 8 flange 2 is not present. It has been shown that it is expendable.
- the hydraulic tensioning device 8 has seals 28, to seal against pumped liquid ( Fig. 12 ).
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Description
Die Erfindung betrifft eine Verdrängerpumpe mit einer Antriebseinheit und einer Pumpeneinheit.The invention relates to a positive displacement pump with a drive unit and a pump unit.
Verdrängerpumpen sind in vielfacher Ausführung bereits bekannt. Nachteilig an den bekannten Verdrängerpumpen ist, dass sie sich entweder nicht für hohe Drücke und hohe Volumenströme eignen oder dass sie schwer zu warten sind.Displacement pumps are already known in many designs. A disadvantage of the known positive displacement pumps is that they are either not suitable for high pressures and high volume flows or that they are difficult to maintain.
Aus der
Die
Die Erfindung hat es sich zur Aufgabe gemacht, eine Verdrängerpumpe zu schaffen, die zumindest hinsichtlich eines der genannten Nachteile verbessert ist.The invention has set itself the task of creating a positive displacement pump which is improved, at least with regard to one of the disadvantages mentioned.
Diese Aufgabe wird durch die in Anspruch 1 wiedergegebene Verdrängerpumpe gelöst.This object is achieved by the reproduced in
Mit dem Begriff "Verdrängerpumpe" wird im Rahmen dieser Druckschrift eine Pumpe bezeichnet, die mindestens ein Verdrängerelement in mindestens einem Arbeitsraum aufweist, der von zu pumpendem Medium, also dem Fördermedium, durchströmt wird.In the context of this publication, the term "displacement pump" refers to a pump which has at least one displacement element in at least one working space through which the medium to be pumped, that is to say the conveying medium, flows.
Die erfindungsgemäße Verdrängerpumpe weist eine Antriebseinheit auf. Zudem ist eine Pumpeneinheit mit mindestens einer Inline-Ventileinheit vorgesehen. Bevorzugt sind pro Arbeitsraum zwei Inline-Ventileinheiten vorgesehen.The positive displacement pump according to the invention has a drive unit. In addition, a pump unit is provided with at least one inline valve unit. Preferably, two inline valve units are provided per working space.
Die Inline-Ventileinheit ist in einer Betriebsstellung zwischen zwei Flanschen der Pumpeneinheit verspannt. Dieses Verspannen der Ventileinheiten zwischen zwei Flanschen kann auch als Zwischenflanscheinbau bezeichnet werden.The inline valve unit is braced in an operating position between two flanges of the pump unit. This distortion of the valve units between two flanges can also be referred to as Zwischenflanscheinbau.
Die Flansche sind mittels Verbindungs- und/oder Distanzmitteln - bevorzugt in einem unveränderlichen Abstand zueinander - miteinander verbunden. Das Verspannen erfolgt daher bevorzugt nicht durch aufeinander zu Bewegen der Flansche, sondern vorzugsweise durch das Spreizen (anders ausgedrückt: Spannen) einer Spannvorrichtung.The flanges are interconnected by means of connecting and / or spacing means, preferably at a fixed distance from one another. The clamping is therefore preferably not by successively moving the flanges, but preferably by the spreading (in other words: clamping) of a clamping device.
Eine Verlagerung der Ventileinheit ist ohne Demontage eines Verbindungs- und/oder Distanzmittels möglich. Es muss also zur Verlagerung der Inline-Ventileinheit kein Verbindungs- und/oder Distanzmittel, mittels dessen oder derer die Flansche miteinander verbunden sind, demontiert werden.A displacement of the valve unit is possible without disassembly of a connecting and / or spacer means. It must therefore be disassembled for the displacement of the inline valve unit no connection and / or spacer means by means of which or the flanges are connected to each other.
Hierdurch ist die Wartung der Inline-Ventileinheiten deutlich vereinfacht und beschleunigt.As a result, the maintenance of the inline valve units is significantly simplified and accelerated.
Der Abstand zwischen zwei benachbarten Verbindungs- und/oder Distanzmitteln ist bevorzugt größer, als die Außenabmessungen - etwa der Durchmesser - der Inline-Ventileinheit.The distance between two adjacent connection and / or spacer means is preferably greater than the outer dimensions - such as the diameter - of the inline valve unit.
Die Verbindungs- und/oder Distanzmittel sind entweder derart angeordnet, dass benachbarte Verbindungs- und/oder Distanzmittel stets den gleichen Abstand zueinander aufweisen oder derart, dass sich unterschiedliche Abstände zwischen benachbarten Verbindungs- und/oder Distanzmitteln ergeben.The connecting and / or spacing means are either arranged such that adjacent connecting and / or spacing means always have the same distance from one another or in such a way that different distances between adjacent connecting and / or spacing means result.
Die Verbindungs- und/oder Distanzmittel sind derart angeordnet, dass der größte Abstand (genauer gesagt, die lichte Weite) zwischen zwei benachbarten Verbindungs- und/oder Distanzmitteln größer ist, als die Außenabmessungen - etwa der Durchmesser - der Inline-Ventileinheit. Hierdurch ist eine Voraussetzung für eine Verlagerung der Inline-Ventileinheit zwischen zwei Verbindungs- und/oder Distanzmitteln hindurch, ohne deren Demontage, geschaffen.The connecting and / or spacing means are arranged such that the greatest distance (more precisely, the clear width) between two adjacent connection and / or spacer means is greater than the outer dimensions - such as the diameter - of the in-line valve unit. As a result, a prerequisite for a displacement of the inline valve unit between two connecting and / or spacer means, without their disassembly created.
Es hat sich gezeigt, dass eine belastbare Verbindung der Flansche zueinander und der Inline-Ventileinheiten zwischen den Flanschen auch bei einem derart großen Abstand der Verbindungs- und/oder Distanzmittel möglich ist.It has been found that a resilient connection of the flanges to each other and the inline valve units between the flanges is possible even with such a large distance of the connecting and / or spacer means.
Bevorzugt ist eine Ventilverlagerungseinrichtung vorgesehen, mit deren Hilfe die Inline-Ventileinheit aus einer Betriebsstellung in eine Wartungsstellung verlagerbar ist. Hierbei ist die Ventileinheit bevorzugt auf einer von einer Kreisbahn abweichenden Bewegungsbahn verlagerbar.Preferably, a valve displacement device is provided by means of which the inline valve unit can be displaced from an operating position into a maintenance position. In this case, the valve unit is preferably displaceable on a path deviating from a circular path.
Die Ventilverlagerungseinrichtung ist bevorzugt fest mit der übrigen Pumpe verbunden.The valve displacement device is preferably fixedly connected to the rest of the pump.
Die Inline-Ventileinheit ist bevorzugt mit den Flanschen ausschließlich verspannt. Es sind also bevorzugt keine anderen Befestigungsmittel, wie etwa eine Verschraubung der Ventileinheit mit den Flanschen, vorgesehen. Indem die Inline-Ventileinheit bevorzugt also ausschließlich zwischen den Flanschen eingeklemmt ist, ist eine Voraussetzung für eine vereinfachte und schnelle Wartung geschaffen.The inline valve unit is preferably braced exclusively with the flanges. Thus, there are preferably no other fastening means, such as a screw connection of the valve unit with the flanges provided. By virtue of the fact that the inline valve unit is preferably clamped exclusively between the flanges, a prerequisite for simplified and rapid maintenance is created.
Mit dem Begriff "Inline-Ventileinheit" ist im Rahmen dieser Druckschrift insbesondere eine Ventileinheit bezeichnet, die geradlinig durchströmt wird. Mit dem Begriff "geradlinig durchströmt" ist im Rahmen dieser Druckschrift insbesondere gemeint, dass die Strömungsrichtung unmittelbar vor dem Ventil zumindest in etwa der Strömungsrichtung unmittelbar nach dem Ventil entspricht. Dies unterscheidet Inline-Ventileinheiten von Eckventileinheiten, bei denen das Fördermedium beispielsweise auf der Unterseite eintritt und unter einem Winkel von 90 Grad seitlich austritt. Ein Vorteil von Inline-Ventileinheiten gegenüber Eckventileinheiten ist, dass ein Rohrbogen, der die Ventileinheit mit dem Membrangehäuse verbindet, entfallen kann und der mit der Umlenkung verbundene Strömungsverlust und das Schadraumvolumen entfallen. Auch ein bei Eckventileinheiten erhöhter Verschleiß durch ungleichmäßige Belastung entfällt.The term "inline valve unit" is referred to in the context of this publication, in particular a valve unit, which is flowed through in a straight line. The term "flows straight through" in the context of this document specifically means that the flow direction immediately before the valve at least approximately corresponds to the flow direction immediately after the valve. This distinguishes inline valve units of angle valve units, in which the fluid enters, for example, on the bottom and at an angle of 90 degrees laterally exit. An advantage of in-line valve units over corner valve units is that a pipe bend connecting the valve unit to the diaphragm housing can be dispensed with and the flow loss associated with the deflection and the dead volume can be dispensed with. Even with corner valve units increased wear due to uneven load is eliminated.
Die Inline-Ventileinheiten werden bevorzugt zumindest in etwa senkrecht durchströmt. Hiermit ist insbesondere gemeint, dass die Strömungsrichtung unmittelbar vor und unmittelbar nach der Ventileinheit zumindest in etwa senkrecht ist. Es ist auch denkbar, dass die Ventileinheiten nicht zumindest in etwa senkrecht durchströmt werden.The inline valve units are preferably flowed through at least approximately vertically. This means in particular that the flow direction is at least approximately perpendicular immediately before and immediately after the valve unit. It is also conceivable that the valve units are not flowed through at least approximately vertically.
Die Pumpe kann genau einen oder mehrere Arbeitsräume aufweisen. Sie kann einfachwirkend oder doppeltwirkend sein.The pump can have exactly one or more working spaces. It can be single-acting or double-acting.
Durch die Verlagerungseinrichtung ist insbesondere die Wartung der Inline-Ventileinheiten deutlich vereinfacht, da das erhebliche Gewicht dieser Einheiten von der Ventilverlagerungseinrichtung getragen wird und nicht etwa von dem Monteur gehalten werden muss.In particular, the maintenance of the in-line valve units is significantly simplified by the displacement device, since the considerable weight of these units is borne by the valve displacement device and does not have to be held by the installer.
Die Verlagerungseinrichtung kann die Wartung der Inline-Ventileinheiten auch dadurch deutlich vereinfachen, indem sie die Ventileinheiten einer Krananlage zugänglich macht.The displacement device can also significantly simplify the maintenance of the in-line valve units by making the valve units accessible to a crane installation.
In der Ausführungsform, in der die Inline-Ventileinheiten senkrecht durchströmt sind, sind die beiden Flansche, zwischen denen die Inline-Ventileinheit verspannt ist, bevorzugt zumindest in etwa horizontal ausgerichtet und besonders bevorzugt genau übereinander angeordnet.In the embodiment in which the in-line valve units are flowed through perpendicularly, the two flanges, between which the inline valve unit is clamped, are preferably aligned at least approximately horizontally, and particularly preferably arranged exactly one above the other.
In der Wartungsstellung ist die Inline-Ventileinheit bevorzugt nicht mehr zwischen den Flanschen angeordnet, sondern von allen Seiten frei zugänglich.In the maintenance position, the inline valve unit is preferably no longer arranged between the flanges, but freely accessible from all sides.
Die Inline-Ventileinheit kann auch als Inline-Förderventileinheit bezeichnet werden.The in-line valve unit may also be referred to as an in-line delivery valve unit.
Bei der Verdrängerpumpe handelt es sich bevorzugt um eine Spülpumpe für Bohrflüssigkeit oder um eine sogenannte "slurry pump", also eine Pumpe zum Transport von sich in Flüssigkeit befindlichen Feststoffen. Slurry pumps werden auch als Dickstoffpumpen bezeichnet. Als Dickstoffe werden Gemische aus flüssigen und festen Bestandteilen bezeichnet. In einer Ausführungsform erzeugt die Pumpe einen Druck von bis zu 300 bar. Sie hat bevorzugt eine Förderleistung von bis zu 1500 m3/h. Die Leistung der Pumpe beträgt bevorzugt mehr als 500 kW. Sie beträgt in einer Ausführungsform etwa 2400 kW und in einer anderen Ausführungsform etwa 5000 kW.The displacement pump is preferably a rinsing pump for drilling fluid or a so-called "slurry pump", ie a pump for transporting solids in liquid. Slurry pumps are also called thick matter pumps. Thick substances are mixtures of liquid and solid components. In one embodiment, the pump generates a pressure of up to 300 bar. It preferably has a delivery rate of up to 1500 m 3 / h. The power of the pump is preferably more than 500 kW. It is about 2400 kW in one embodiment and about 5000 kW in another embodiment.
Mit Vorteil ist die Pumpeneinheit eine Flachmembran-Pumpeneinheit. Das Verdrängerelement umfasst also bevorzugt eine Flachmembran.Advantageously, the pump unit is a flat membrane pump unit. The displacement element thus preferably comprises a flat membrane.
In der bevorzugten Ausführungsform ist die Membran in ihrer Mittelstellung senkrecht angeordnet. Es ist jedoch auch denkbar, dass die Membran in ihrer Mittelstellung nicht senkrecht angeordnet ist. Dies kann beispielsweise durch eine nicht horizontale Aufstellung der Pumpe bewirkt sein.In the preferred embodiment, the membrane is arranged vertically in its center position. However, it is also conceivable that the membrane is not arranged vertically in its central position. This can be effected for example by a non-horizontal installation of the pump.
Das Verdrängerelement wird bevorzugt durch eine Arbeitsflüssigkeit betätigt, die ihrerseits vorzugsweise durch einen oszillierenden Kolben einer Antriebseinheit unter Druck gesetzt ist. In der Ausführungsform, in der die Pumpeneinheit eine Flachmembranpumpeneinheit ist, ist der die Arbeitsflüssigkeit unter Druck setzende Kolben durch die Membran vollständig von der zu pumpenden Flüssigkeit getrennt.The displacer element is preferably actuated by a working fluid, which in turn is preferably pressurized by an oscillating piston of a drive unit. In the embodiment in which the pump unit is a flat diaphragm pump unit, the piston pressurizing the working fluid is completely separated from the fluid to be pumped by the diaphragm.
In der Ausführungsform mit Flachmembran ist diese weiter bevorzugt in ihrer Mittelstellung senkrecht zur Bewegungsrichtung des oszillierenden Kolbens der Antriebseinheit angeordnet. Es ist jedoch auch denkbar, dass die Membran in ihrer Mittelstellung nicht senkrecht zur Bewegungsrichtung des oszillierenden Kolbens der Antriebseinheit ausgerichtet ist.In the embodiment with flat membrane, this is more preferably arranged in its central position perpendicular to the direction of movement of the oscillating piston of the drive unit. However, it is also conceivable that the diaphragm is not aligned in its central position perpendicular to the direction of movement of the oscillating piston of the drive unit.
Die Verbindungs- und/oder Distanzmittel umfassen bevorzugt Gewindebolzen, die weiter bevorzugt Distanzhülsen durchgreifen.The connection and / or spacer means preferably comprise threaded bolts, which more preferably pass through spacer sleeves.
Die Verbindungs- und/oder Distanzmittel sind bevorzugt derart angeordnet, dass sich unterschiedlichen Abstände zwischen zwei benachbarten Verbindungs- und/oder Distanzmitteln ergeben.The connection and / or spacer means are preferably arranged such that different distances between two adjacent connection and / or spacer means result.
Bevorzugt sind die Verbindungs- und/oder Distanzmittel derart angeordnet, dass der größte Abstand zwischen benachbarten Verbindungs- und/oder Distanzmitteln im Bereich der Bewegungsbahn der Inline-Ventileinheit vorgesehen ist.Preferably, the connection and / or spacer means are arranged such that the greatest distance between adjacent connection and / or spacer means is provided in the region of the movement path of the inline valve unit.
Wenn die Verbindungs- und/oder Distanzmittel derart angeordnet sind, dass der größte Abstand (genauer gesagt, die lichte Weite) zwischen zwei benachbarten Verbindungs- und/oder Distanzmitteln lediglich geringfügig größer ist, als die Außenabmessungen - etwa der Durchmesser - der Inline-Ventileinheit, dann ist einerseits eine Voraussetzung für eine kompakte Pumpeneinheit geschaffen. Zudem ist die durch das Verspannen der Ventileinheiten bewirkte Biegebelastung der Flansche verringert, verglichen mit einer Anordnung mit benachbarten Verbindungs- und/oder Distanzmitteln größeren Abstands. Andererseits ist hierdurch weiterhin eine Voraussetzung für eine Verlagerung der Inline-Ventileinheit zwischen zwei Verbindungs- und/oder Distanzmitteln hindurch, ohne deren Demontage, geschaffen.When the connecting and / or spacing means are arranged such that the largest distance (more precisely, the inside width) between two adjacent connecting and / or spacing means is only slightly larger than the outer dimensions - such as the diameter - of the in-line valve unit , then on the one hand a prerequisite for a compact pump unit is created. In addition, the bending load on the flanges caused by the distortion of the valve units is reduced, compared to an arrangement with adjacent connecting and / or spacing means of greater spacing. On the other hand, this continues to be a prerequisite for a displacement of the inline valve unit between two connecting and / or spacer means, without their disassembly, created.
Der größte Abstand (genauer gesagt, die lichte Weite) zwischen zwei benachbarten Verbindungs- und/oder Distanzmitteln kann lediglich weniger als dreißig und insbesondere lediglich weniger als zehn Prozent der Außenabmessungen der Inline-Ventileinheit größer sein, als diese.The largest distance (more precisely, the inside width) between two adjacent connecting and / or spacing means can be only less than thirty and in particular only less than ten percent of the outer dimensions of the inline valve unit greater than this.
Bevorzugt sind genau vier Verbindungs- und/oder Distanzmitteln vorgesehen, die in der Form eines Rechtecks angeordnet sind. Eine andere Anzahl an Verbindungs- und/oder Distanzmitteln ist denkbar.Preferably, exactly four connecting and / or spacing means are provided, which are arranged in the form of a rectangle. Another number of connecting and / or spacers is conceivable.
In einer alternativen Ausführungsform mit gleichen Abständen zwischen Verbindungs- und/oder Distanzmitteln, ist dieser größer, als die Außenabmessungen - etwa der Durchmesser - der Inline-Ventileinheit.In an alternative embodiment with equal distances between connection and / or spacer means, this is greater than the outer dimensions - such as the diameter - of the inline valve unit.
In der Ausführungsform, in der die Inline-Ventileinheit mittels der Ventilverlagerungseinrichtung auf einer von der Kreisbahn abweichenden Bewegungsbahn verlagerbar ist, kann auch bei einem derartig kleinen (größten) Abstand zwischen benachbarten Verbindungs- und/oder Distanzmitteln eine Verlagerung der Inline-Ventileinheit von einer Betriebsstellung in eine Wartungsstellung mittels der Ventilverlagerungseinrichtung erfolgen, ohne dass eine Demontage eines Verbindungs- und/oder Distanzmittels erforderlich ist.In the embodiment in which the inline valve unit is displaceable by means of the valve displacement device on a movement path deviating from the circular path, even with such a small (largest) distance between adjacent connection and / or spacer means, a displacement of the inline valve unit from an operating position take place in a maintenance position by means of the valve displacement device, without disassembly of a connecting and / or spacer means is required.
Auch kann eine Wartungsstellung erreicht werden, die sich durch einen wünschenswert großen Abstand von der übrigen Pumpeneinheit auszeichnet, ohne dass eine aufwändige, ihrerseits viel Baumraum beanspruchende Verlagerungseinrichtung erforderlich wäre.Also, a maintenance position can be achieved, which is characterized by a desirable large distance from the rest of the pump unit, without the need for a complex, in turn, much tree space-consuming displacement device would be required.
In der bevorzugten Ausführungsform ist die Inline-Ventileinheit verlagerbar, ohne an der Pumpeneinheit - in einer Ausführungsform mit Ausnahme der hydraulischen Spannvorrichtung - eine Schraubverbindung zu Lösen. Es muss also bevorzugt zum Verlagern der Inline-Ventileinheit allenfalls eine Schraubverbindung der hydraulischen Spannvorrichtung gelöst werden.In the preferred embodiment, the in-line valve unit is displaceable without disengaging a screw connection on the pump unit-in one embodiment, except for the hydraulic tensioner. It must therefore preferably be solved for displacing the inline valve unit at most a screw of the hydraulic tensioning device.
In einer Ausführungsform ist die Inline-Ventileinheit bereits nach dem Lösen eines Gewindeelements der Spannvorrichtung verlagerbar. Um die Inline-Ventileinheit zu verlagern, muss also ein Gewindeelement der Spannvorrichtung - gegebenenfalls nach hydraulischer Entlastung des Gewindeelements - und kein Gewindeelement der übrigen Pumpe, gelöst werden.In one embodiment, the in-line valve unit is displaceable already after loosening a threaded element of the clamping device. To relocate the inline valve unit, so a threaded element of the clamping device - if necessary after hydraulic relief of the threaded element - and no threaded element of the remaining pump to be solved.
In einer Ausführungsform ist die Inline-Ventileinheit nach dem Lösen eines einzigen Gewindeelements, bevorzugt einer Kontermutter der Spannvorrichtung, verlagerbar.In one embodiment, the inline valve unit after the release of a single threaded element, preferably a lock nut of the clamping device, displaced.
Die Wartung der Inline-Ventileinheiten ist hierdurch erleichtert und beschleunigt.The maintenance of the in-line valve units is thereby facilitated and accelerated.
In einer Ausführungsform umfasst die Ventilverlagerungseinrichtung einen in sich gelenkigen Gelenkarm. Mit Vorteil ist der Gelenkarm an einem Verbindungs- und/oder Distanzmittel gelagert. Ein zwischen den Flanschen angeordnetes, ausschließlich der Lagerung des Gelenkarmes an der übrigen Pumpeneinheit dienendes Element kann daher, wie bevorzugt, entfallen.
Weiter bevorzugt ist der Gelenkarm auch an der Inline-Ventileinheit gelenkig befestigt.In one embodiment, the valve displacement device comprises an articulated articulated arm. Advantageously, the articulated arm is mounted on a connection and / or spacer. An arranged between the flanges, only the storage of the articulated arm on the other pump unit serving element can therefore, as preferred, omitted.
More preferably, the articulated arm is also hinged to the inline valve unit.
Es hat sich gezeigt, dass durch einen derartigen Gelenkarm eine von einer Kreisbahn abweichende Verlagerbarkeit der Inline-Ventileinheit auf einfache und zuverlässige Art und Weise erreichbar ist.It has been found that a displaceability of the in-line valve unit deviating from a circular path can be achieved in a simple and reliable manner by means of such an articulated arm.
In einer bevorzugten Ausführungsform ist die Inline-Ventileinheit zumindest abschnittsweise auf einer translatorischen Bewegungsbahn verlagerbar. In einer anderen Ausführungsform ist die Inline-Ventileinheit ausschließlich auf einer translatorischen Bewegungsbahn verlagerbar.In a preferred embodiment, the inline valve unit is at least partially displaceable on a translational movement path. In another embodiment, the in-line valve unit is displaceable exclusively on a translatory movement path.
In einer Ausführungsform umfasst die Ventilverlagerungseinrichtung einen Teleskoparm.In one embodiment, the valve displacement device comprises a telescopic arm.
Auch wenn die Ventilverlagerungseinrichtung seitliche Teleskopschienen - bevorzugt zwei pro Inline-Ventileinheit - umfasst, ist eine geeignete, dann nämlich schubladenartige, Verlagerbarkeit der Ventileinheit gegeben.Even if the valve displacement device comprises lateral telescopic rails - preferably two per inline valve unit - there is a suitable, then drawer-like, displaceability of the valve unit.
Es ist denkbar, an einem einzigen Flanschpaar mehrere Ventileinheiten und mehrere Verlagerungseinrichtungen vorzusehen. Durch das auf diese Weise geschaffene Schnellwechselsystem sind die durch die Wartung der Inline-Ventileinheiten bedingten Stillstandzeiten der Pumpe verringert, da die Inline-Ventileinheiten gewartet werden können, während bereits gewartete Inline-Ventileinheiten wieder in die Betriebsstellung verlagert wurden.It is conceivable to provide a plurality of valve units and a plurality of displacement devices on a single pair of flanges. The quick change system created in this manner reduces the downtime of the pump due to maintenance of the in-line valve assemblies because the in-line valve assemblies can be serviced while already serviced inline valve assemblies have been returned to the operating position.
Mit Vorteil ist mindestens eine Inline-Ventileinheit mittels einer hydraulischen Spannvorrichtung zwischen den Flanschen verspannt. Die Verspannung kann hierdurch auf drehmomentarme und präzise Weise vorgenommen werden.Advantageously, at least one inline valve unit is clamped by means of a hydraulic tensioning device between the flanges. The tension can thereby be made in a low-torque and precise manner.
Die hydraulische Spannvorrichtung grenzt bevorzugt an einen der Flansche an. Insbesondere in der Ausführungsform, in der die Flansche genau übereinander angeordnet sind, grenzt die hydraulische Spannvorrichtung bevorzugt an den untern Flansch an. Die hydraulische Spannvorrichtung ist vorzugsweise also zwischen dem unteren Flansch und der Inline-Ventileinheit angeordnet.The hydraulic tensioning device preferably adjoins one of the flanges. In particular, in the embodiment in which the flanges are arranged exactly one above the other, the hydraulic tensioning device preferably adjoins the lower flange. The hydraulic tensioning device is therefore preferably arranged between the lower flange and the in-line valve unit.
Wenn die hydraulische Spannvorrichtung eine eigenständige Einheit bildet, die bevorzugt nicht fest mit der Pumpeneinheit, etwa einem angrenzenden Flansch, verbunden ist, dann kann sie ohne viel Aufwand getauscht bzw. gewartet werden (z.B. Austausch von Dichtungen).If the hydraulic tensioner is a stand-alone unit, which preferably is not fixedly connected to the pump unit, such as an adjacent flange, then it can be easily replaced or serviced (e.g., replacement of gaskets).
Bevorzugt ist die hydraulische Spannvorrichtung im entspannten Zustand werkzeuglos entfernbar.Preferably, the hydraulic tensioning device is removable without tools in the relaxed state.
Eine alternative Ausführungsform, bei der die hydraulische Spannvorrichtung im entspannten Zustand nicht werkzeuglos entfernbar ist, ist insbesondere dann denkbar, wenn die beiden Flansche nicht genau übereinander, sondern etwa schräg übereinander oder beispielsweise nebeneinander angeordnet sind. Es können dann Sicherungsmittel vorgesehen sein, die die hydraulische Spannvorrichtung gegen ein Herausfallen fixieren. Diese Sicherungsmittel können so ausgestaltet sein, dass sie nur mit Werkzeug zu lösen sind.An alternative embodiment, in which the hydraulic tensioning device can not be removed without tools in the relaxed state, is conceivable in particular if the two flanges are not exactly one above the other, but are arranged obliquely one above the other or next to one another, for example. It can then be provided securing means which fix the hydraulic tensioning device against falling out. These securing means can be designed so that they can be solved only with tools.
In einer bevorzugten Ausführungsform weist die hydraulische Spannvorrichtung - besonders bevorzugt genau - ein Hydraulikzylinder-Element auf.In a preferred embodiment, the hydraulic tensioning device - particularly preferably exactly - a hydraulic cylinder element.
Das Hydraulikzylinderelement stellt in einer Ausführungsform genau einen Hydraulikzylinder bereit.The hydraulic cylinder element provides exactly one hydraulic cylinder in one embodiment.
In einer Ausführungsform ist genau ein Druckkolben vorgesehen.In one embodiment, exactly one pressure piston is provided.
Es ist denkbar, dass die hydraulische Spannvorrichtung genau einen Ringkolben in genau einem Ringzylinder aufweist.It is conceivable that the hydraulic tensioning device has exactly one annular piston in exactly one annular cylinder.
Das Hydraulikzylinder-Element stellt bevorzugt jedoch eine Vielzahl von zylindrischen Hydraulikzylindern bereit. Und mit Vorteil ist eine Vielzahl von Einzelhydraulikkolben vorgesehen. Die Einzelhydraulikkolben können auch als Druckkolben bezeichnet werden. Bevorzugt sind sie zylindrisch.However, the hydraulic cylinder element preferably provides a plurality of cylindrical hydraulic cylinders. And with advantage, a plurality of single hydraulic piston is provided. The single hydraulic piston can also be referred to as a pressure piston. Preferably, they are cylindrical.
Die hydraulische Spannvorrichtung ist in einer Ausführungsform doppeltwirkend. Die Hydraulikkolben können in dieser Ausführungsform also wahlweise auf zwei verschiedenen Seiten einer Wirkfläche mit Druck beaufschlagt werden und hierdurch in zwei Richtungen bewegt werden.The hydraulic tensioner is double-acting in one embodiment. Thus, in this embodiment, the hydraulic pistons can be pressurized selectively on two different sides of an effective surface and thereby moved in two directions.
In der bevorzugten Ausführungsform ist die hydraulische Spannvorrichtung jedoch einfachwirkend und die Einzelkolben sind jeweils mit einer Kolbenrückholfeder ausgestattet.However, in the preferred embodiment, the hydraulic tensioner is single acting and the individual pistons are each equipped with a piston return spring.
Es ist denkbar, dass mehrere Konterelemente vorgesehen sind, um die hydraulische Spannvorrichtung in gespanntem Zustand zu fixieren.It is conceivable that a plurality of counter-elements are provided to fix the hydraulic tensioning device in a tensioned state.
Wenn genau eine Kontermutter vorgesehen ist, um die hydraulische Spannvorrichtung in gespanntem Zustand zu fixieren, dann ist eine besonders schnell und belastbar herstellbare Möglichkeit geschaffen, die hydraulische Spannvorrichtung unter Aufrechterhaltung des gespannten Zustands der Inline-Ventileinheit drucklos zu schalten.If exactly one locknut is provided to fix the hydraulic tensioning device in a tensioned state, then a particularly fast and resilient producible possibility is created to depressurize the hydraulic tensioning device while maintaining the tensioned state of the inline valve unit.
Die Erfindung wird nun anhand von in den Zeichnungen gezeigten Ausführungsbeispielen näher erläutert. Es zeigen:
- Fig. 1
- eine beispielhafte Verdrängerpumpe mit einer Antriebseinheit und einer Pumpeneinheit;
- Fig. 2
- eine teilgeschnittene Seitendarstellung einer Pumpeneinheit mit oberer Inline-Ventileinheit in Betriebsstellung und unterer Inline-Ventileinheit in Wartungsstellung, wobei die Ventilverlagerungseinrichtung als Gelenkarm ausgeführt ist;
- Fig. 3
- ein vergrößertes Detail aus
Fig. 2 ; - Fig. 4
- eine perspektivische Darstellung der in
Fig. 2 gezeigten Pumpeneinheit; - Fig. 5
- eine Seitendarstellung der in
Fig. 2 gezeigten Pumpeneinheit, mit oberer Inline-Ventileinheit in Wartungsstellung und unterer Inline-Ventileinheit in Betriebsstellung; - Fig. 6
- ein vergrößertes Detail aus
Fig. 5 ; - Fig. 7
- eine perspektivische Darstellung der in
Fig. 5 gezeigten Pumpeneinheit ; - Fig. 8
- eine teilgeschnittene Seitendarstellung einer Pumpeneinheit mit Teleskoparmen;
- Fig. 9
- ein vergrößertes Detail aus
Fig. 8 ; - Fig. 10
- eine perspektivische Darstellung der in
Fig. 8 gezeigten Pumpeneinheit; - Fig. 11
- eine teilgeschnittene Seitendarstellung einer Pumpeneinheit, bei der jede Ventilverlagerungseinrichtung zwei Teleskopschienen umfasst;
- Fig. 12
- ein Detail aus
Fig. 11 ; - Fig. 12a
- eine Ansicht wie in
Fig. 12 , jedoch in kleinerem Maßstab und mit durch die Kontermutter fixiertem Hydraulikzylinderelement - Fig. 13
- eine perspektivische Darstellung der in
Fig. 11 gezeigten Pumpeneinheit; - Fig. 14
- eine teilgeschnittene Seitendarstellung einer Pumpeneinheit, bei der an jedem Flanschpaar mehrere Ventileinheiten und mehrere Verlagerungseinrichtungen angeordnet sind;
- Fig. 15
- ein Detail aus
Fig. 14 ; - Fig. 16
- eine perspektivische Darstellung einer Pumpeneinheit, bei der an jedem Flanschpaar mehrere Ventileinheiten und mehrere Verlagerungseinrichtungen vorgesehen sind, wobei eine obere Ventileinheit in Betriebsstellung und eine obere Ventileinheit in Wartungsstellung und beide untere Ventileinheiten in Wartungsstellung sind;
- Fig. 17
- eine geschnittene Darstellung einer Inline-Ventileinheit im gespannten Zustand;
- Fig. 18
- eine geschnittene Darstellung einer Inline-Ventileinheit im ungespannten Zustand.
- Fig. 1
- an exemplary positive displacement pump with a drive unit and a pump unit;
- Fig. 2
- a partially sectioned side view of a pump unit with upper inline valve unit in the operating position and lower inline valve unit in the maintenance position, wherein the valve displacement device is designed as an articulated arm;
- Fig. 3
- an enlarged detail
Fig. 2 ; - Fig. 4
- a perspective view of in
Fig. 2 shown pump unit; - Fig. 5
- a page representation of in
Fig. 2 shown pump unit, with upper inline valve unit in maintenance position and lower inline valve unit in operating position; - Fig. 6
- an enlarged detail
Fig. 5 ; - Fig. 7
- a perspective view of in
Fig. 5 shown pump unit; - Fig. 8
- a partially sectioned side view of a pump unit with telescopic arms;
- Fig. 9
- an enlarged detail
Fig. 8 ; - Fig. 10
- a perspective view of in
Fig. 8 shown pump unit; - Fig. 11
- a partially sectioned side view of a pump unit, wherein each valve displacement device comprises two telescopic rails;
- Fig. 12
- a detail from
Fig. 11 ; - Fig. 12a
- a view like in
Fig. 12 but on a smaller scale and with fixed by the lock nut hydraulic cylinder element - Fig. 13
- a perspective view of in
Fig. 11 shown pump unit; - Fig. 14
- a partially sectioned side view of a pump unit, in which a plurality of valve units and a plurality of displacement devices are arranged on each pair of flanges;
- Fig. 15
- a detail from
Fig. 14 ; - Fig. 16
- a perspective view of a pump unit, in which a plurality of valve units and a plurality of displacement devices are provided on each pair of flanges, wherein an upper valve unit in the operating position and an upper valve unit in the maintenance position and both lower valve units in the maintenance position;
- Fig. 17
- a sectional view of an inline valve unit in the tensioned state;
- Fig. 18
- a sectional view of an inline valve unit in the untensioned state.
Das Pleuel überträgt seine Bewegung mittels eines Kreuzkopfes 16 auf eine Kreuzkopfstange 17, die in die Kolbenstange 18 übergeht. Das Kreuzkopflager ist ebenfalls ein Wälzlager. Der Kreuzkopf umfasst zudem Gleitschuhe, welche seiner linearen Lagerung an den Gleitlagerwandungen dienen. An der Kolbenstange ist ein Arbeitsmediums-Kolben 19 angeordnet, der in einem Arbeitsmediums-Zylinder 20 eine geradlinige oszillierende Bewegung ausführt.The connecting rod transmits its movement by means of a
An der Antriebseinheit A ist eine Pumpeneinheit 100 vorgesehen. Diese stellt einen an den Arbeitsmediumszylinder 20 angrenzenden Arbeitsmediumsraum bereit, in dem Arbeitsmedium 21, beispielsweise Hydrauliköl, vorgesehen ist, welches die Bewegung des Arbeitsmediumskolbens 19 auf eine Flachmembran 24 überträgt. Die Flachmembran 24 ist in
Eine Drehbewegung der Kurbelwelle führt dazu, dass Arbeitsmedium in dem Arbeitsmediumsraum hin- und herbewegt wird und die Flachmembran damit abwechselnd nach rechts und links auslenkt. Die Auslenkung nach in
Pro Arbeitsraum 25 sind zwei Inline-Ventileinheiten 1, 1' vorgesehen.Per working space 25, two
Die Inline-Ventileinheiten 1, 1' werden geradlinig von Fördermedium durchflossen. Die Strömungsrichtung unmittelbar vor dem Ventil entspricht also zumindest in etwa der Strömungsrichtung unmittelbar nach dem Ventil. Eine Richtungsänderung des Fördermediums findet im Bereich dieser Ventile nicht statt.The
Etwa
Etwa die
Beispielsweise
Die Verlagerungsrichtung V symbolisiert gleichzeitig eine Bewegungsbahn einer Inline-Ventileinheit 1. Diese weicht von einer Kreisbahn ab. Sie kann, wie in
Durch den geringen Abstand zwischen den Verbindungs- und Distanzmitteln 4 ist eine kompakte Bauweise erzielt und die Biegebelastung der Flansche 2, 2' verringert. Da zumindest abschnittsweise eine geradlinige Bewegungsbahn der Inline-Ventileinheiten 1, 1' möglich ist, können diese dennoch zwischen zwei Verbindungs- und Distanzmitteln 4 herausbewegt werden, ohne dass eine Demontage von Bewegungs- und Distanzmitteln 4 erforderlich wäre.Due to the small distance between the connecting and spacer means 4 a compact design is achieved and the bending load of the
In dem in den
In dem in den
In dem in den
In dem in den
In allen gezeigten Ausführungsbeispielen sind die Inline-Ventileinheiten 1, 1' jeweils mittels einer hydraulischen Spannvorrichtung 8 zwischen den Flanschen 2, 2' ausschließlich verspannt.In all the exemplary embodiments shown, the in-
Etwa
In jeder Zylinderbohrung 9a ist ein zylindrischer Einzelhydraulikkolben 10 angeordnet. Jeder Einzelhydraulikkolben 10 weist einen Bund 23 auf. Durch eine Hydraulikleitung 27 kann jede Zylinderbohrung 9a oberhalb des Kolbenbundes 23 mit Druckflüssigkeit gefüllt und mit Druck beaufschlagt werden. Daraufhin hebt sich das Hydraulikzylinderelement 9 und spannt dadurch die Inline-Ventileinheit 1, 1'. Das Hydraulikzylinderelement 9 stützt sich dabei über die Druckflüssigkeit auf den Einzelhydraulikkolben 10 ab, die sich ihrerseits auf dem Flansch 2 abstützen. Dieser gespannte Zustand der hydraulischen Spannvorrichtung 8 ist beispielsweise in
Die Einzelhydraulikkolben 10 weisen, wie etwa die
Zum Entspannen der hydraulischen Spannvorrichtung 8, um die Inline-Ventileinheit 1, 1' verlagern und warten zu können, wird zunächst erneut die Druckflüssigkeit der hydraulischen Spannvorrichtung unter Druck gesetzt. Daraufhin kann die Kontermutter 12 leicht gelöst werden. Wenn dann der Druck der Hydraulikflüssigkeit in den Zylinderbohrungen abgebaut wird, dann sorgt eine zwischen dem Bund 23 der Kolben 10 und einem Bund 22 des Hydraulikzylinderelements 9 angeordnete Kolbenrückholfeder 11 dafür, dass sich die Kolben 10 in das Hydraulikzylinderelement 9 hineinverlagern, wie dies in
Die hydraulischen Spannvorrichtung 8 weist Dichtungen 28 auf, zum Abdichteten gegen Förderflüssigkeit (
- 100100
- Pumpeneinheitpump unit
- 1, 1'1, 1 '
- Inline-VentileinheitInline valve unit
- 2, 2'2, 2 '
- Flanschflange
- 2a2a
- Flanschpaarflanges
- 2b2 B
- ringförmiger Vorsprungannular projection
- 33
- VentilverlagerungseinrichtungValve displacement device
- 44
- Verbindungs- und/oder DistanzmittelConnecting and / or spacer means
- 55
- in sich gelenkiger Gelenkarmarticulated articulated arm
- 66
- Teleskoparmtelescopic arm
- 7, 7'7, 7 '
- Teleskopschienentelescopic rails
- 88th
- hydraulische Spannvorrichtunghydraulic tensioning device
- 99
- HydraulikzylinderelementHydraulic cylinder element
- 9a9a
- Zylinderbohrungencylinder bores
- 1010
- EinzelhydraulikkolbenSingle hydraulic pistons
- 1111
- Kolbenrückholfederpiston return
- 1212
- Kontermutterlocknut
- 1313
- Kurbelwellecrankshaft
- 1414
- Pleuelpleuel
- 1515
- Antriebswelledrive shaft
- 1616
- KreuzkopfPhillips
- 1717
- KreuzkopfstangePhillips rod
- 1818
- Kolbenstangepiston rod
- 1919
- ArbeitsmediumskolbenWorking medium piston
- 2020
- ArbeitsmediumszylinderWorking medium cylinder
- 2121
- Arbeitsmediumworking medium
- 2222
- Bund des ZylindersCovenant of the cylinder
- 2323
- Bund des KolbensBunch of the piston
- 2424
- Flachmembranflat membrane
- 2525
- Arbeitsraumworking space
- 2626
- Membrangehäusemembrane housing
- 2727
- Hydraulikleitungenhydraulic lines
- 2828
- Dichtungenseals
- AA
- Antriebseinheitdrive unit
- BB
- Betriebsstellungoperating position
- KK
- kleinerer Abstandsmaller distance
- LL
- lichte Weite und größerer Abstandclear width and greater distance
- MM
- Außenabmessungenexternal dimensions
- WW
- Wartungsstellungmaintenance position
- VV
- Verlagerungsrichtungdisplacement direction
Claims (9)
- Positive displacement pump having a drive unit (A) and a pump unit (100) having at least one inline valve unit (1, 1'),
wherein the inline valve unit (1, 1') is tensioned in an operating position (B) between two flanges (2, 2')
and the flanges (2, 2') are connected to each other by means of connection and/or spacer means (4),
wherein a displacement of the inline valve unit (1, 1') is possible without dismounting a connection and/or spacer means (4), characterized in that either the connection and/or spacer means (4) are arranged in such a way that different distances between adjacent connection and/or spacer means (4) arise and the largest distance between two adjacent connection and/or spacer means (4) is greater than the outer dimensions (M) of the inline valve unit (1, 1')
or
adjacent connection and/or spacer means (4) have the same distance to each other, and this distance is greater than the outer dimensions (M) of the inline valve unit (1, 1'). - Pump according to claim 1, characterized in that the distance (L) between two adjacent connection and/or spacer means (4) is greater than the outer dimensions (M) of the inline valve unit (1, 1') and the pump unit (100) is a flat membrane pump unit.
- Pump according to claim 1 or 2, characterized in that a valve displacement device (3) is provided by means of which the inline valve unit (1, 1') is displaceable from the operating position (B) to a maintenance position (W), wherein the inline valve unit (1, 1') is displaceable on a movement path deviating from a circular path.
- Pump according to claim 3, characterized in that the valve displacement device (3) comprises a self-articulated arm (5).
- Pump according to any one of claims 3 or 4, characterized in that the valve displacement device (3) comprises a telescopic arm (6).
- Pump according to any one of claims 3 to 5, characterized in that the valve displacement device (3) comprises two telescopic rails (7, 7').
- Pump according to any one of claims 1 to 6, characterized in that several inline valve units (1, 1') and several displacement devices (3) are provided on a single flange pair (2a).
- Pump according to any one of claims 1 to 7, characterized in that the inline valve unit (1, 1') is tensioned between the flanges (2, 2') by means of a hydraulic tensioning device (8) and the hydraulic tensioning device (8) constitutes an independent unit which is not firmly connected to the pump unit (100).
- Pump according to claim 8, characterized in that the hydraulic tensioning device (8) has a hydraulic cylinder element (9) and a plurality of individual hydraulic pistons (10) and the hydraulic tensioning device (8) is double acting or the individual hydraulic pistons (10) are equipped with a piston return spring (11) and exactly one counter nut (12) is provided for fixing the hydraulic tensioning device (8) in a tensioned state.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013108672.1A DE102013108672A1 (en) | 2013-08-09 | 2013-08-09 | displacement |
PCT/EP2014/064070 WO2015018570A1 (en) | 2013-08-09 | 2014-07-02 | Positive displacement pump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3030784A1 EP3030784A1 (en) | 2016-06-15 |
EP3030784B1 true EP3030784B1 (en) | 2019-09-04 |
Family
ID=51162763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14736732.0A Active EP3030784B1 (en) | 2013-08-09 | 2014-07-02 | Positive displacement pump |
Country Status (6)
Country | Link |
---|---|
US (1) | US10190583B2 (en) |
EP (1) | EP3030784B1 (en) |
CN (1) | CN105658961B (en) |
AU (1) | AU2014304881B2 (en) |
DE (1) | DE102013108672A1 (en) |
WO (1) | WO2015018570A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018091306A1 (en) | 2016-11-15 | 2018-05-24 | Mhwirth Gmbh | Method for operating a piston pump, and piston pump |
US11221004B2 (en) * | 2017-07-12 | 2022-01-11 | Blue-White Industries, Ltd. | Multiple diaphragm pump |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1528456A1 (en) * | 1966-01-12 | 1970-09-03 | Busse Dipl Ing Oswald | Valve arrangement and design for positive displacement pump |
US4491345A (en) * | 1981-08-06 | 1985-01-01 | Hughes Tool Company | Marine conductor coupling |
US4471799A (en) * | 1982-01-11 | 1984-09-18 | Grove Valve And Regulator Company | Line removable ball valve |
DE3430721A1 (en) | 1984-08-21 | 1986-03-06 | Alldos Eichler Kg, 7507 Pfinztal | DIAPHRAGM PUMP, ESPECIALLY FOR DOSING LIQUIDS |
US6988626B2 (en) * | 1998-07-31 | 2006-01-24 | Varghese Paily T | Computer component rack mounting arrangement |
US20030032506A1 (en) * | 2001-08-07 | 2003-02-13 | Tien-Sheng Chi | Elevation-adjustable baseball batting-training apparatus |
DE102011001087A1 (en) * | 2011-03-04 | 2012-09-06 | Feluwa Pumpen Gmbh | Double hose-diaphragm process pump |
AR086188A1 (en) | 2011-04-20 | 2013-11-27 | Spm Flow Control Inc | AN ALTERNATIVE PUMP |
AU2012314408B2 (en) * | 2011-09-30 | 2016-05-26 | Mhwirth Gmbh | Positive displacement pump and operating method thereof |
CN202690386U (en) * | 2012-07-23 | 2013-01-23 | 上海绩优机电设备有限公司 | Diaphragm pump |
-
2013
- 2013-08-09 DE DE102013108672.1A patent/DE102013108672A1/en not_active Ceased
-
2014
- 2014-07-02 EP EP14736732.0A patent/EP3030784B1/en active Active
- 2014-07-02 CN CN201480049139.3A patent/CN105658961B/en not_active Expired - Fee Related
- 2014-07-02 US US14/910,258 patent/US10190583B2/en not_active Expired - Fee Related
- 2014-07-02 WO PCT/EP2014/064070 patent/WO2015018570A1/en active Application Filing
- 2014-07-02 AU AU2014304881A patent/AU2014304881B2/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
WO2015018570A1 (en) | 2015-02-12 |
CN105658961B (en) | 2017-11-21 |
AU2014304881A1 (en) | 2016-03-03 |
US20160177946A1 (en) | 2016-06-23 |
US10190583B2 (en) | 2019-01-29 |
EP3030784A1 (en) | 2016-06-15 |
AU2014304881B2 (en) | 2018-05-10 |
CN105658961A (en) | 2016-06-08 |
DE102013108672A1 (en) | 2015-02-12 |
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