EP1936187B1 - Mehrfachmembranpumpe für Nahrungsflüssigkeiten und Ähnliches - Google Patents

Mehrfachmembranpumpe für Nahrungsflüssigkeiten und Ähnliches Download PDF

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Publication number
EP1936187B1
EP1936187B1 EP06425858A EP06425858A EP1936187B1 EP 1936187 B1 EP1936187 B1 EP 1936187B1 EP 06425858 A EP06425858 A EP 06425858A EP 06425858 A EP06425858 A EP 06425858A EP 1936187 B1 EP1936187 B1 EP 1936187B1
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EP
European Patent Office
Prior art keywords
pump according
delivery
intake
membranes
duct
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.)
Not-in-force
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EP06425858A
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English (en)
French (fr)
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EP1936187A1 (de
Inventor
Paolo Tabanelli
Andrea Tabanelli
Oliviero Tabanelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flli Tabanelli SNC Di Tabanelli Paolo & C
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Flli Tabanelli SNC Di Tabanelli Paolo & C
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Application filed by Flli Tabanelli SNC Di Tabanelli Paolo & C filed Critical Flli Tabanelli SNC Di Tabanelli Paolo & C
Priority to AT06425858T priority Critical patent/ATE526503T1/de
Priority to ES06425858T priority patent/ES2374715T3/es
Priority to EP06425858A priority patent/EP1936187B1/de
Priority to US12/448,089 priority patent/US20090304532A1/en
Priority to PCT/EP2007/063217 priority patent/WO2008077725A1/en
Publication of EP1936187A1 publication Critical patent/EP1936187A1/de
Application granted granted Critical
Publication of EP1936187B1 publication Critical patent/EP1936187B1/de
Not-in-force legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/06—Mobile combinations
    • 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
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
    • 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
    • F04B53/18—Lubricating

Definitions

  • the present invention relates to a multiple membrane pump for food liquids and the like.
  • the food industry traditionally uses, for the transfer of liquids, piston pumps, helical screw pumps, centrifugal pumps, peristaltic pumps or, as an alternative, membrane pumps which are actuated pneumatically or electromechanically.
  • Membrane pumps are often preferred to piston, helical screw, centrifugal and peristaltic pumps due to their smaller bulk and lower noise, to their gentle pumping, to the absence of mechanical seals, to the possibility to operate when empty or with delicate, viscous, abrasive fluids, even containing suspended solids;
  • such membrane pumps currently comprise, in the most advanced version, two mutually opposite pumping elements, each provided with a respective membrane, both connected to an intake duct and a delivery duct; such pumping elements are usually actuated in phase opposition with respect to each other, i.e., when one is at the end of the intake step the other one is at the end of the delivery step, and vice versa.
  • DE 2059903A1 which discloses a peristaltic pump according to the preamble of claim 1, has a pump housing with cylindric internal cavity.
  • the housing is closed with a lid on its front and its back side.
  • One of the lids is connected with a motor driving a rotor.
  • the rotor has on its ends rollers which are associated with a pumping room including a cupola-formed membrane.
  • Membrane pumps of the type described here are not free from drawbacks. First of all, they generate a rather uneven stream of liquid, i.e., with a very conspicuous pulsed flow-rate: this fact, for particularly delicate food processes, such as wine packaging and the like, is certainly highly disadvantageous, since it subjects the liquid to mechanical stresses which might alter and compromise its organoleptic properties and therefore its quality. Secondly, they can deliver a flow-rate which in many applications is not sufficient even when using large-diameter membranes.
  • pumps generally currently used in the food industry are expensive, demanding in terms of maintenance, noisy, scarcely efficient in terms of energy due to the high internal friction and to the scarcely effective types of lubrication, despite the use of large amounts of lubricating oils and greases.
  • the aim of the present invention is to obviate the above-mentioned drawbacks, by providing a multiple membrane pump for food liquids and the like which allows to deliver a flow-rate of liquid which is as uniform as possible, i.e., substantially without conspicuous pulsing phenomena which might alter the quality of said liquid.
  • an object of the present invention is to provide a multiple membrane pump for food liquids and the like which is capable of delivering significantly higher flow-rates than provided by currently commercially available membrane pumps.
  • Another object of the present invention is to provide a multiple membrane pump for food liquids and the like which has a flow reversal system which allows to reverse the direction of transfer of the liquid between the external tanks or sources.
  • Another object of the present invention is to provide a multiple membrane pump for food liquids and the like which is easy to maintain, quiet, has high energy efficiency and a low use of lubricating oil due to low internal friction.
  • Another object of the present invention is to provide a multiple membrane pump for food liquids and the like which has a simple structure, is relatively easy to provide in practice, safe in use, effective in operation, and has a relatively low cost.
  • the reference numeral 1 generally designates a multiple membrane pump for food liquids and the like according to the invention, particularly but not exclusively for liquids such as wine.
  • the pump comprises a supporting footing, generally designated by the reference numeral 2, which is constituted by a substantially square frame 3 provided with cross-members 4 which intersect at the center; optionally, the square frame 3 can be provided with substantially traditional wheels 5 which are adapted to facilitate the movement of the pump.
  • a supporting footing generally designated by the reference numeral 2
  • the square frame 3 can be provided with substantially traditional wheels 5 which are adapted to facilitate the movement of the pump.
  • Four vibration-damping elements 5a of a substantially traditional type are interposed between the cross-members 4 and the square frame 3 and dampen and limit the transmission of vibrations to the ground ( Figure 2 ).
  • the footing 2 advantageously supports, according to the invention, a duct for compensated intake of the liquid, generally designated by the reference numeral 6, which is closed on itself in a loop and is provided with at least one intake port 7, a duct for compensated delivery of the liquid, generally designated by the reference numeral 8, which is closed on itself in a loop and is provided with at least one delivery port 9; there are also four branches 10, 11, 12, 13, which provide a unidirectional connection between the intake duct 6 and the delivery duct 8 and are associated respectively with four membranes 14, 15, 16, 17 for pumping the liquid.
  • the pump also conveniently comprises a gearmotor assembly, generally designated by the reference numeral 18, which is associated with a crank system, generally designated by the reference numeral 19 ( Figures 5 , 6 ) for the actuation of the four membranes 14, 15, 16, 17, which is adapted to convert the rotary motion of an output shaft 20 of the gearmotor assembly 18 into a reciprocating motion, which is adjusted with an appropriate timing between two mutually opposite intake and delivery stroke limit positions, as will become better apparent hereinafter, of each of actuation axes 21, 22, 23, 24 of the membranes 14, 15, 16, 17.
  • actuation axes 21, 22, 23, 24 of the membranes 14, 15, 16, 17, connected respectively to said membranes by means of screws V are preferably arranged at right angles to each other, but in any case can be arranged, as an alternative, at different angles in relation to different requirements.
  • Each of the membranes 14, 15, 16, 17, as can be seen in Figure 3 is clamped between pairs of plates P1, P2, which facilitate their rolling during the movement of the actuation axes 21, 22, 23, 24.
  • the delivery duct 8 is arranged concentrically above the intake duct 6 and is supported by the four branches 10, 11, 12, 13, which accordingly are also mutually angularly equidistant at right angles to each other.
  • the gearmotor assembly 18 is preferably mounted so that the output shaft 20 is vertical, along a direction which is substantially concentric with respect to the intake duct 6 and the delivery duct 8.
  • the gearmotor assembly 18 is of the type actuated with an electric motor 25, which is controlled with an electronic frequency inverter.
  • a hydraulic, pneumatic, internal-combustion engine or a power takeoff or cardan shaft or also a motor of any other kind might also be used.
  • Each of the branches 10, 11, 12, 13 ( Figure 3 ) is shaped substantially like a letter T tilted sideways and forms a first end for connection to the intake duct 6, a second end for connection to the delivery duct 8, and a third end for connection to the respective membrane 14, 15, 16, 17; each of the branches 10, 11, 12, 13 comprises an intake valve 29 and a delivery valve 30, which are arranged respectively at the first end 26 and at the second end 27.
  • each intake valve 29 and the delivery valves 30 are conveniently of the type with a ball-shaped flow control element 31 (also known as ball check valves), but as an alternative it is possible to use also flap check valves or duck bill check valves or cone check valves. More precisely, in the embodiment with a ball-shaped flow control element, each intake valve 29 and delivery valve 30 comprises a tubular segment which is affected by a fluid passage channel 33 which is arranged hermetically above an interchangeable and reversible seat 34 against which the ball-shaped flow control element 31 abuts by gravity. The seat 34 in turn rests on a sort of cup T, which is adapted to provide a connection to the ducts.
  • a ball-shaped flow control element 31 also known as ball check valves
  • flap check valves or duck bill check valves or cone check valves More precisely, in the embodiment with a ball-shaped flow control element, each intake valve 29 and delivery valve 30 comprises a tubular segment which is affected by a fluid passage channel 33 which is arranged hermetically above an interchangeable and re
  • the channel 33 is provided with linear guides provided with a stop element 34a and with simple linear guides 34b, which are arranged alternately at right angles to each other and allow to guide in a straight manner the flow control element 31 from its inactive position on the seat 34 to the fully raised position, set by a stop tooth 34c of each of the guides 34a: this allows to achieve quicker closure by gravity of the ball-shaped flow control element 31 on the seat 34, so as to utilize effectively the delivery valve 30 and the intake valve 29 even at high pumping rates.
  • the channel 33 has a transverse cross-section which accordingly forms four peripheral sectors 35, which are angularly equidistant and are adapted to give the valves 29, 30 minimal resistance to the passage of the liquid and through which any suspended solids, even of substantial dimensions, conveyed by said fluid, can flow freely without being crushed by the ball-shaped flow control element 31 against the internal wall of the channel 33; said fluid can thus provide a self-cleaning effect on said channel (for example, it is possible to pump fruit salad or the like without breaking the pieces of fruit, which must remain intact).
  • each of the branches 10, 11, 12, 13 are connected to substantially T-shaped couplings R, are provided with respective rings G (or for example clamps of the tri-clamp type or the like) for fixing to the branches 10, 11, 12, 13, and are connected respectively to the intake duct 6 and to the delivery duct 8 (each constituted by five pieces of rubber, plastics or metal pipe), by means of hermetic clamps F, or also by means of flanges.
  • rings G or for example clamps of the tri-clamp type or the like
  • the crank system 19 for actuating the membranes 14, 15, 16, 17 (see Figures 6 , 7 ) comprises a box 36, which has a lid 36a which is fixed hermetically by means of screws 36b and on which a frame 36c for supporting the gearmotor assembly 18 is mounted.
  • the box 36 accommodates internally a first rectangular body 37 and a second rectangular body 38, which are arranged so as to cross each other at right angles and one above the other, both being arranged above the level of the oil that is present on the bottom of the box 36 and being affected centrally respectively by a first rectangular opening 37a and a second rectangular opening 38a.
  • Each of said bodies is rigidly coupled, at the respective short sides, to two of the actuation axes of two of the mutually opposite membranes 14, 15, 16, 17: more precisely, the short sides of the first rectangular body 37 are respectively rigidly coupled to the axes 21, 23, while the short sides of the second rectangular body 38 are rigidly coupled to the axes 22, 24.
  • the actuation crank system 19 further comprises an eccentric pivot 39, which is rigidly coupled to the output shaft 20 of the gearmotor assembly 18, which is arranged so that its axis of symmetry lies within the first opening 37a of the first rectangular body 37 and of the second opening 38a of the second rectangular body 38: advantageously, the rotation of the eccentric pivot 39 about the axis of the output shaft 20 of the gearmotor assembly 18 allows to provide the alternating translational motion of the axes 21, 22, 23, 24 of the membranes 14, 15, 16, 17 one after the other sequentially and in a continuous cycle.
  • the eccentric pivot 39 is provided, at its free end, with two rolling bearings 40, 41, which are adapted to engage, with an appropriate tolerance and without play, respectively within the first opening 37a of the first rectangular body 37 and within the second opening 38a of the second rectangular body 38.
  • the box 36 is associated with four pumping chambers 42, 43, 44, 45, which are angularly equidistant at right angles to each other and inside which the four membranes 14, 15, 16, 17 are fitted which are closed by four respective heads 46, 47, 48, 49, which are connected to the four branches 10, 11, 12, 13.
  • the four actuation axes 21, 22, 23, 24 of the membranes 14, 15, 16, 17 protrude partially from the box 36 through four respective through holes 50, 51, 52, 53, at which four respective sliding bushes 54, 55, 56, 57 are fitted; advantageously, there are no mechanical seals, since the level of the oil contained in the bottom of the box 36 is lower than the level of the pair of lowest sliding bushes 55, 57.
  • the pump 1 comprises a forced lubrication system, generally designated by the reference numeral 58, for the actuation crank system 19.
  • the lubrication system 58 comprises a gear or vane pump 59, which is connected to the output shaft 20 of the gearmotor assembly 18 at the top thereof, i.e., at the opposite end with respect to the eccentric pivot 39.
  • the gear pump or vane pump 59 is associated with an intake tube 60, which is connected to a first coupling 61, which is arranged substantially at the base of the box 36, and to a delivery tube 62, which is connected to a second coupling 63, which is connected to the eccentric pivot 39 by way of an appropriately provided channel 64.
  • the lubrication system 58 is conveniently suitable to convey a preset flow-rate of oil along the channel 64, said oil being drawn from the bottom of the box 36, onto the eccentric pivot 39 and accordingly, substantially by dripping, onto the first rectangular body 37 and the second rectangular body 38, so as to keep them constantly lubricated and cooled.
  • the pump comprises advantageously a flow reversal element 65, which is associated with a first tubular portion 66 which forms a first port 67 for connection to external tanks or sources, and with a second tubular portion 68, which forms a second port 69, also for connection to external tanks or sources, and is provided with a manual selection lever 70; the first port 67 and the second port 69 are mutually opposite.
  • the flow reversal element 65 allows to selectively connect the intake duct 6 and the delivery duct 8 to the first port 67 or to the second port 69.
  • expansion vessels 71 and 72 which are adapted to compensate and dampen any oscillations within the liquid in the tubes for connection between the external tanks or sources and the pump, which are connected respectively to the first tubular portion 66 and to the second tubular portion 68 by means of couplings 73 for example of the ring, tri-clamp, clamp type or the like.
  • the operation of the pump according to the invention is as follows.
  • the source of liquid to be drawn is connected to the first port 67 or to the second port 69, depending on the position of the reversal element 65; an external duct is connected to the other port and conveys the fluid toward the destination tank, whichever it may be.
  • the output shaft 20 drives the eccentric pivot 39, which in turn imparts an alternating translational motion to the first rectangular body 37 and to the second rectangular body 38 and consequently to the pairs of actuation axes 21, 22 and 23, 24.
  • Said axes actuate in succession, one after the other, the membranes 14, 15, 16, 17, which in a continuous cycle aspirate the liquid that flows along the intake duct 6 and along the branches 10, 11, 12, 13 through the intake valve 29 and the delivery valve 30.
  • the liquid aspirated by the membranes 14, 15, 16, 17 gathers in the delivery duct 8 and from there is conveyed to the destination tank.
  • any oscillations within the liquid in the tubes for connection between the external tanks or sources and the pump are dampened and cushioned in the expansion vessels 71 and 72.
  • the timing of the rectangular bodies 37, 38 is adjusted so that when one membrane is at the end of the intake step, the diametrically opposite membrane is at the end of the delivery step, while the remaining two are respectively halfway through the intake step and halfway through the delivery step.
  • the pump according to the invention can also have more than four membranes; for example, there can be six membranes associated with three rectangular bodies whose respective actuation axes are mutually angularly equidistant at 60° to each other, or eight membranes, associated with four rectangular bodies, with the respective actuation axes arranged so as to be angularly equidistant at 45° to each other; in these two cases, the box of the actuation crank has a hexagonal and octagonal plan shape, respectively.
  • the box of the actuation crank has a hexagonal and octagonal plan shape, respectively.
  • the pump according to the invention can be used usefully also for other fields of use, such as for example depuration (sludges), the supply of filter presses, the pumping of powders which can be fluidized, and other applications in chemical, ceramics, and paper industries.
  • depuration sludges
  • the supply of filter presses the pumping of powders which can be fluidized
  • other applications in chemical, ceramics, and paper industries such as for example depuration (sludges), the supply of filter presses, the pumping of powders which can be fluidized, and other applications in chemical, ceramics, and paper industries.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Claims (27)

  1. Eine Mehrfachmembranpumpe für Nahrungsflüssigkeiten und Ähnliches, die Folgendes umfasst; mindestens eine Einlassleitung (6) für den kompensierten Einlass der Flüssigkeit, die in sich selbst in einem Ring geschlossen und mit mindestens einer Einlassöffnung (7) ausgestattet ist; mindestens eine Auslassleitung (8) für die kompensierte Abgabe der Flüssigkeit, die in sich selbst in einem Ring geschlossen und mit mindestens einer Auslassöffnung (9) ausgestattet ist; mindestens vier Verzweigungen (10, 11, 12, 13), wobei jede der Verzweigungen eine Fluidverbindung zwischen der Einlassleitung (6) und der Auslassleitung (8) herstellt und mit einer Flüssigkeitspumpenmembran (14, 15, 16, 17) verbunden ist; und einen Getriebemotoraufbau (18), wobei die Pumpe dadurch gekennzeichnet ist, dass jede der Verzweigungen mindestens ein Einlassventil (29) umfasst, befindlich an der Verbindung zu der Einlassleitung (6), und mindestens ein Ausflussventil (30), befindlich an der Verbindung zu der Auslassleitung (8), wodurch eine unidirektionale Fluidverbindung zwischen der Einlassleitung (6) und der Auslassleitung (8) bereitgestellt wird, und dadurch, dass der Getriebemotoraufbau (18) mit einem Kurbelsystem (19) zur Betätigung der Membranen (14, 15, 16, 17) verbunden ist, das ausgebildet ist, um die Drehbewegung einer Abtriebswelle (20) des Getriebemotoraufbaus (18) in eine Hin- und Herbewegung umzuwandeln, eingestellt mit einer geeigneten Taktung zwischen zwei einander gegenüberliegenden Einlass- und Auslasshub-Grenzpositionen jeder der Betätigungsachsen (21, 22, 23, 24) der Membranen (14, 15, 16, 17).
  2. Die Pumpe gemäß Anspruch 1, dadurch gekennzeichnet, dass die Betätigungsachsen (21, 22, 23, 24) der Membranen (14, 15, 16, 17) in rechten Winkeln zueinander angeordnet sind.
  3. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekerunzeichnet, dass die Auslassleitung (8) konzentrisch oberhalb der Einlassleitung (6) angeordnet ist und von den vier Verzweigungen (10, 11, 12, 13) getragen wird.
  4. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekennzeichnet, dass der Getriebemotoraufbau (18) so montiert ist, dass die Abtriebswelle (20) vertikal ist, entlang einer Richtung, die im Wesentlichen konzentrisch mit der Einlassleitung (6) und der Auslassleitung (8) ist.
  5. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekennzeichnet, dass der Getriebemotoraufbau (18) von der Art ist, die mit Hilfe eines Elektromotors (25) betrieben wird, welcher von einem elektronischen Frequenzumrichter gesteuert wird.
  6. Die Pumpe gemäß einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Getriebemotoraufbau (18) von der Art ist, die mit Hilfe eines Hydraulikmotors angetrieben wird.
  7. Die Pumpe gemäß einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Getriebemotoraufbau (18) von der Art ist, die mit Hilfe eines Pneumatikmotors angetrieben wird.
  8. Die Pumpe gemäß einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Getriebemotoraufbau (18) von der Art ist, die mit Hilfe eines Verbrennungsmotors angetrieben wird.
  9. Die Pumpe gemäß einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Getriebemotoraufbau (18) von der Art ist, die mit Hilfe einer Zapfwelle oder Gelenkwelle angetrieben wird.
  10. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekennzeichnet, dass jede der Verzweigungen (10, 11, 12, 13) im Wesentlichen wie ein auf der Seite liegendes T geformt ist und mindestens ein erstes Ende zur Verbindung mit der Einlassleitung (6), mindestens ein zweites Ende zur Verbindung mit der Auslassleitung (8) und mindestens ein drittes Ende zur Verbindung mit der Membran (14, 15, 16, 17) bildet.
  11. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekennzeichnet, dass das Einlassventil (29) und das Ausflussventil (30) von der Art mit einem kugelförmigen Durchflussregelungselement (31) sind, auch bekannt als Kugelventil.
  12. Die Pumpe gemäß Anspruch 11, dadurch gekennzeichnet, dass jedes der Einlass- und Ausflussventile (29, 30) ein rohrförmiges Segment umfasst, das von einem Kanal (33) für das Durchströmen der Flüssigkeit betroffen ist, der hermetisch oberhalb eines austauschbaren und reversiblen Sitzes (34) angeordnet ist, an welchen das kugelförmige Durchflussregelungselement (31) durch Schwerkraft anstößt, wobei der Kanal (33) lineare Führungen bildet, die mit einem Anschlagelement (34a) und einfachen linearen Führungen (34b) ausgestattet sind, welche alternierend in rechten Winkeln zueinander angeordnet sind, so dass sie das kugelförmige Durchflussregelungselement (31) zwingen, eine geradlinige Bewegung aus einer inaktiven Position auf dem Sitz (34) in eine vollständig erhöhte Position durchzuführen, festgelegt durch den Anschlagzakun (34c) jeder der Führungen (34a), so dass ein schneller Verschluss durch Schwerkraft des kugelförmigen Durchflussregelungselements (31) auf dem Sitz (34) erreicht wird, und zur Verwendung des Einlass- und des Ausflussventils (29, 30) auch bei hohen Pumpgeschwindigkeiten.
  13. Die Pumpe gemäß Anspruch 12, dadurch gekennzeichnet, dass der Kanal (33) einen transversalen Querschnitt hat, welcher vier periphere Sektoren (35) bildet, die ausgebildet sind, um den Einlass- und Ausflussventilen (29, 30) minimalen Widerstand gegenüber der Strömung von Flüssigkeit und dem freien Fluss eventueller Feststoffe zu verleihen, die in der gepumpten Flüssigkeit suspendiert sind, ohne dass die Feststoffe von dem kugelförmigen Durchflussregelungselement (31) gegen die Innenwand des Kanals (33) zerdrückt werden, mit einem selbstreinigenden Effekt des Kanals.
  14. Die Pumpe gemäß einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Einlass- und das Ausflussventil (29, 30) vom Klappen-Rückschlagventil-Typ sind.
  15. Die Pumpe gemäß einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Einlass- und das Ausflussventil (29, 30) vom Entenschnabel-Rückschlagventil-Typ sind.
  16. Die Pumpe gemäß einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Einlass- und Ausflussventile (29, 30) vom Kegel-Rückschlagventil-Typ sind.
  17. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekennzeichnet, dass das Kurbelsystem (19) zur Betätigung der Membranen (14, 15, 16, 17) mindestens einen Kasten (36) umfasst, in dem ein erster rechteckiger Körper (37) und ein zweiter rechteckiger Körper (38) untergebracht sind, wobei der erste rechteckige Körper (37) von einer ersten rechteckigen Öffnung (37a) beeinflusst wird und der zweite rechteckige Körper (38) von einer zweiten rechteckigen Öffnung (38a) beeinflusst wird, wobei die Körper (37, 38) einander übereinander in rechten Winkeln zueinander kreuzen, wobei jeder, in Paaren, an den entsprechenden kurzen Seiten, mit den Betätigungsachsen (21, 22, 23, 24) der einander gegenüberliegenden Membranen (14, 15, 16, 17) starr gekoppelt ist, wobei das Betätigungs-Kurbelsystem (19) weiter mindestens einen exzentrischen Drehzapfen (39) umfasst, der starr mit der Abtriebswelle (20) des Getriebemotoraufbaus (18) gekoppelt ist, eingesetzt in die erste Öffnung (37a) und die zweite Öffnung (38a), wobei die Drehung des exzentrischen Drehzapfens (39) um die Achse der Abtriebswelle (20) ausgebildet ist, um die alternierende Translationsbewegung der Betätigungsachsen (21, 22, 23, 24) der Membranen (14, 15, 16, 17) nacheinander und in einem kontinuierlichen Zyklus zu erzeugen.
  18. Die Pumpe gemäß Anspruch 17, dadurch gekennzeichnet, dass der exzentrische Drehzapfen (39) an seinem freien Ende mit Wälzlagern (40, 41) ausgestattet ist, die ausgebildet sind, um in die erste Öffnung (37a) und die zweite Öffnung (38a) einzugreifen.
  19. Die Pumpe gemäß einem oder mehreren der obigen Anspräche 17 und 18, dadurch gekennzeichnet, dass der Kasten (36) mit vier Pumpenkammern (42, 43, 44, 45) verbunden ist, die zueinander winkelig in rechten Winkeln äquidistant sind und in denen die vier Membranen (14, 15, 16, 17) untergebracht sind, wobei die Membranen von vier entsprechenden Köpfen (46, 47, 48, 49) verschlossen werden, welche mit den vier Verzweigungen (10, 11, 12, 13) verbunden sind.
  20. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche 17 bis 19, dadurch gekennzeichnet, dass die vier Betätigungsachsen (21, 22, 23, 24) der Membranen (14, 15, 16, 17) aus dem Kasten (36) durch vier entsprechende durchgehende Löcher (50, 51, 52, 53) herausragen, an denen vier entsprechende Gleithülsen (54, 55, 56, 57) angebracht sind, die oberhalb des Ölstands am Boden des Kastens (36) angeordnet sind.
  21. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekennzeichnet, dass jede der Membranen (14, 15, 16, 17) zwischen Paaren von Platten (P1, P2) geklemmt ist, die ihr Rollen während der Bewegung der Betätigungsachsen (21, 22, 23, 24) erleichtern.
  22. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche 1 bis 16, dadurch gekennzeichnet, dass die Pumpe zwei zusätzliche Membranen (14, 15, 16, 17) umfasst, die mit drei rechteckigen Körpern (37, 38) verbunden sind, wobei ihre jeweiligen Betätigungsachsen mit 60° zueinander winkelig äquidistant sind.
  23. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche 1 bis 16, dadurch gekennzeichnet, dass die Pumpe vier zusätzliche Membranen (14, 15, 16, 17) umfasst, welche mit vier rechteckigen Körpern (37, 38) verbunden sind, wobei ihre jeweiligen Betätigungsachsen mit 45° zueinander winkelig äquidistant sind.
  24. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche 17 bis 21, dadurch gekennzeichnet, dass sie mindestens ein System (58) zur Druckschmierung des Betätigungs-Kurbelsystems (19) umfasst, wobei das Schmiersystem (58) mindestens eine Zahnradpumpe oder Zellenpumpe (59) umfasst, welche von der Abtriebswelle (20) des Getriebemotoraufbaus (18) betätigt wird und mit mindestens einem Einlassrohr (60) verbunden ist, das mit dem Kasten (36) und mit mindestens einem Auslassrohr (62) verbunden ist, das mit dem exzentrischen Drehzapfen (39) verbunden ist, wobei das Auslassrohr (62) ausgebildet ist, um eine voreingestellte Strömmungsrate von Öl entlang dem exzentrischen Drehzapfen (39) und, im Wesentlichen durch Tropfen, auf den ersten rechteckigen Körper (37) und auf den zweiten rechteckigen Körper (38) zu befördern.
  25. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekennzeichnet, dass sie mindestens ein Strömungsumkehrelement (65) umfasst, das mit mindestens einer ersten Öffnung (67) und mindestens einer zweiten Öffnung (69) zur Verbindung mit externen Behältern oder Quellen verbunden ist, wobei das Umkehrsystem (65) ausgebildet ist, um selektiv die Einlassleitung (6) und die Auslassleitung (8) mit der ersten Öffnung (67) oder der zweiten Öffnung (69) zu verbinden.
  26. Die Pumpe gemäß Anspruch 25, dadurch gekennzeichnet, dass sie mindestens ein Paar von Expansionsgefäßen (71, 72) umfasst, welche ausgebildet sind, um eventuelle Schwankungen in der Flüssigkeit in den Rohren zur Verbindung zwischen den externen Gefäßen oder Quellen und der Pumpe auszugleichen und zu dämpfen, und welche mit einem ersten rohrförmigen Abschnitt (66) verbunden sind, der zu der ersten Öffnung (67) führt, und mit einem zweiten rohrförmigen Abschnitt (68), der zu der zweiten Öffnung (69) führt.
  27. Die Pumpe gemäß einem oder mehreren der obigen Ansprüche, dadurch gekennzeichnet, dass sie eine Tragbasis (2) umfasst, die aus einem im Wesentlichen quadratischen Rahmen (3) besteht, ausgestattet mit Querträgern (4), die sich in der Mitte kreuzen und an denen die Unterseite des Kastens (36) befestigt ist, wobei der Rahmen (3) mit Rädern (5) ausgestattet ist, welche die Bewegung der Pumpe ermöglichen, wobei vier vibrationsdämpfende Elemente (5a) zwischen den Querträgern (4) und dem quadratischen Rahmen (3) angeordnet sind und die Übertragung von Vibrationen auf den Boden dämpfen und beschränken.
EP06425858A 2006-12-22 2006-12-22 Mehrfachmembranpumpe für Nahrungsflüssigkeiten und Ähnliches Not-in-force EP1936187B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT06425858T ATE526503T1 (de) 2006-12-22 2006-12-22 Mehrfachmembranpumpe für nahrungsflüssigkeiten und ähnliches
ES06425858T ES2374715T3 (es) 2006-12-22 2006-12-22 Bomba de membranas múltiples para líquidos alimentarios y similares.
EP06425858A EP1936187B1 (de) 2006-12-22 2006-12-22 Mehrfachmembranpumpe für Nahrungsflüssigkeiten und Ähnliches
US12/448,089 US20090304532A1 (en) 2006-12-22 2007-12-04 Multiple membrane pump for food liquids and the like
PCT/EP2007/063217 WO2008077725A1 (en) 2006-12-22 2007-12-04 Multiple membrane pump for food liquids and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06425858A EP1936187B1 (de) 2006-12-22 2006-12-22 Mehrfachmembranpumpe für Nahrungsflüssigkeiten und Ähnliches

Publications (2)

Publication Number Publication Date
EP1936187A1 EP1936187A1 (de) 2008-06-25
EP1936187B1 true EP1936187B1 (de) 2011-09-28

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EP06425858A Not-in-force EP1936187B1 (de) 2006-12-22 2006-12-22 Mehrfachmembranpumpe für Nahrungsflüssigkeiten und Ähnliches

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US (1) US20090304532A1 (de)
EP (1) EP1936187B1 (de)
AT (1) ATE526503T1 (de)
ES (1) ES2374715T3 (de)
WO (1) WO2008077725A1 (de)

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GB2532517A (en) * 2014-11-22 2016-05-25 Andrew Dawson James Reverser valve
WO2016161508A1 (en) 2015-04-09 2016-10-13 Froehler Anthony Steven Drive system for chemical injection pumps and instrument air compressors
EP3380731A4 (de) * 2015-10-15 2019-06-19 Provtagaren AB Membranflüssigkeitspumpe
WO2017153808A1 (en) * 2016-03-10 2017-09-14 Debem S.R.L. Double diaphragm pump
WO2021113950A1 (en) * 2019-12-11 2021-06-17 Leggett & Platt Canada Co. Pump assembly

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Also Published As

Publication number Publication date
WO2008077725A1 (en) 2008-07-03
EP1936187A1 (de) 2008-06-25
US20090304532A1 (en) 2009-12-10
ES2374715T3 (es) 2012-02-21
ATE526503T1 (de) 2011-10-15

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