DE4016300A1 - Hydro-membrane pump assembly - has drive of work piston activated by double-acting hydraulic cylinder - Google Patents

Hydro-membrane pump assembly - has drive of work piston activated by double-acting hydraulic cylinder

Info

Publication number
DE4016300A1
DE4016300A1 DE4016300A DE4016300A DE4016300A1 DE 4016300 A1 DE4016300 A1 DE 4016300A1 DE 4016300 A DE4016300 A DE 4016300A DE 4016300 A DE4016300 A DE 4016300A DE 4016300 A1 DE4016300 A1 DE 4016300A1
Authority
DE
Germany
Prior art keywords
pressure
hydraulic cylinder
membrane
drive
pump
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.)
Ceased
Application number
DE4016300A
Other languages
German (de)
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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.)
Wilms GmbH
Original Assignee
Wilms GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wilms GmbH filed Critical Wilms GmbH
Priority to DE4016300A priority Critical patent/DE4016300A1/en
Publication of DE4016300A1 publication Critical patent/DE4016300A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve

Abstract

A displacement pump (1) and a proportional valve (2) drive the hydraulic cylinder (3). The hydraulic cylinder moves the work piston (5) forwards and backwards, and in its forward run the piston presses hydraulic fluid (6) against the membrane (7). The membrane moves in the pump housing chamber (10), and via a pressure valve (9) medium is delivered into the pressure conduit (15). At the same time, medium is sucked into the pump housing (14) via a suction valve (12), which is changed over smoothly by an end switch (16) via ramp control. When the set operating pressure is reached, the pressure oil feed flow is set back to a zero quantity by a pressure driver (19). USE/ADVANTAGE - A hydraulically driven membrane pump in which there is optimal use of the energy derived from th drive unit, a longer work life for component parts, and appreciable noise redn. by smooth changeover of the work piston.

Description

Die Erfindung betrifft eine Membranpumpe, bei der die Membran unter Zwischenschaltung einer Hydraulikflüssigkeitsvorlage von einem sich hin- und herbewegenden Arbeitskolben beaufschlagt wird. Der Antrieb des Arbeitskolbens erfolgt über einen doppelt­ wirkenden Hydraulikzylinder.The invention relates to a diaphragm pump in which the membrane with the interposition of a hydraulic fluid supply from a reciprocating piston becomes. The working piston is driven by a double acting hydraulic cylinder.

Bei Erreichen des Betriebsdruckes im Arbeitsraum wird die Druck­ ölzuführung zum Hydraulikzylinder über das Signal eines Druck­ aufnehmers zur Verstellpumpe zurückgestellt.When the operating pressure in the work area is reached, the pressure is reduced Oil supply to the hydraulic cylinder via the signal of a pressure sensor to the variable displacement pump.

Von einem Kolben können eine oder zwei Membrane beaufschlagt wer­ den. Solche Kolbenmembranpumpen sind insbesondere geeignet zur Förderung von abrasiven und hochviskosen Schlämmen mit hoher Fest­ stoff-Konzentration. Sie werden beispielsweise zur Beschickung von Filterpressen eingesetzt.One or two membranes can be acted upon by a piston the. Such piston diaphragm pumps are particularly suitable for Conveying abrasive and highly viscous sludges with a high solid substance concentration. For example, they are used for loading used by filter presses.

Die Aufgabe der Erfindung besteht darin, optimale Ausnutzung der Energiemenge des Antriebsaggrega­ tes, größere Lebensdauer der Bauteile und erhebliche Geräuschmin­ derung durch weiches Umschalten des Arbeitskolbens.The object of the invention is in it, optimal use of the energy quantity of the drive unit tes, longer service life of the components and considerable noise change due to soft switching of the working piston.

Zur Lösung dieser Erfindungsaufgabe ist eine Membranpumpe, ge­ zeichnet durch einen hydraulisch angetriebenen Arbeitskolben, der nach einer bevorzugten Ausführungsart über den Betriebsdruck im Hydrauliksystem bis zur Nullmenge des Druckölförderstromes steuerbar ist. Die Abbildung zeigt in schematischer Darstellung den Aufbau.To solve this invention task is a diaphragm pump, ge is characterized by a hydraulically driven piston that according to a preferred embodiment on the operating pressure  in the hydraulic system up to the zero quantity of the pressure oil flow is controllable. The figure shows a schematic representation the construction.

Über Verstellpumpe 1 und Proportionalventil 2 wird Hydraulik­ zylinder 3 angetrieben.Hydraulic cylinder 3 is driven via variable pump 1 and proportional valve 2 .

Der Hydraulikzylinder 3 bewegt den Arbeitskolben 5 hin und her. Im Vorlauf drückt der Arbeitskolben 5 die Hydraulikflüssigkeit 6 gegen die Membrane 7. Die Membrane bewegt sich in den Pumpen­ gehäuseraum 10. Über Druckventil 9 wird das Medium in die Druck­ leitung 15 gefördert.The hydraulic cylinder 3 moves the working piston 5 back and forth. In the advance, the working piston 5 presses the hydraulic fluid 6 against the membrane 7 . The membrane moves in the pump housing space 10 . Via pressure valve 9 , the medium is conveyed into the pressure line 15 .

Gleichzeitig wird über Saugventil 12 das Medium in das Pumpenge­ häuse 14 gesaugt.At the same time, the medium is sucked into the pump housing 14 via the suction valve 12 .

Endschalter 16 schaltet über Rampensteuerung Ventil 12 weich um.Limit switch 16 softly switches over valve 12 via ramp control.

Beim Umkehren des Arbeitskolbens 5 wird durch die Hydraulikflüs­ sigkeit 4 und die Membrane 11 das Medium über Druckventil 13 in die Druckleitung 15 gefördert. Gleichzeitig wird über Saugventil 8 das Medium in das Pumpengehäuse 10 gesaugt. Endschalter 17 schaltet über Rampensteuerung Ventil 2 weich um.When the working piston 5 is reversed, the medium is conveyed through the hydraulic fluid 4 and the membrane 11 via the pressure valve 13 into the pressure line 15 . At the same time, the medium is sucked into the pump housing 10 via a suction valve 8 . Limit switch 17 switches valve 2 smoothly via ramp control.

Ist der eingestellte Betriebsdruck erreicht, wird über Druckauf­ nehmer 19 der Druckölförderstrom bis zur Nullmenge zurückge­ steuert. Die Optimierung der Antriebsleistung wird durch einen kombinierten Druck- und Förderstromregler (Load-Sensing-Regler) an der Verstellpumpe 1 erreicht.If the set operating pressure is reached, the pressure oil delivery flow is controlled back to zero via pressure transducer 19 . The drive power is optimized by a combined pressure and flow controller (load-sensing controller) on the variable pump 1 .

Über Druckaufnehmer 18 wird nur der jeweils benötigte Druck und die jeweils benötigte Druckölmenge von der Verstellpumpe 1 gefördert.Via the pressure sensor 18 , only the respectively required pressure and the respectively required quantity of pressure oil are conveyed by the variable pump 1 .

Claims (4)

1. Membranpumpe, bei der die Membran unter Zwischenschaltung einer Hydraulikflüssigkeitsvorlage von einem sich hin- und herbewegenden Arbeitskolben (5) beaufschlagt wird und bei Erreichen eines maximalen Betriebsgegendruckes die Arbeits­ kolbenbewegung gegen Null geht.1. Diaphragm pump in which the membrane is acted upon by a reciprocating working piston ( 5 ) with the interposition of a hydraulic fluid supply and when the maximum operating counterpressure is reached, the working piston movement approaches zero. 2. Membranpumpe nach Anspruch 1, dadurch gekennzeichnet, daß der Hydraulikantrieb (1, 3) über den Betriebsdruck mittels Druckölförderstromes steuerbar ist.2. Diaphragm pump according to claim 1, characterized in that the hydraulic drive ( 1 , 3 ) can be controlled via the operating pressure by means of pressure oil flow. 3. Membranpumpe nach Anspruch 1, dadurch gekennzeichnet, daß durch Proportionalventil (2) und Rampensteuerung die Umschaltschläge vermieden werden und dadurch die Lebensdauer der Bauteile erhöht wird, zusätzlich eine erhebliche Ge­ räuschminderung erreicht wird.3. Diaphragm pump according to claim 1, characterized in that the switching shocks are avoided by proportional valve ( 2 ) and ramp control and thereby the life of the components is increased, a significant Ge noise reduction is also achieved. 4. Membranpumpe nach Anspruch 1, dadurch gekennzeichnet, daß durch einen kombinierten Druck- und Förderstromregler an der Verstellpumpe (1) die installierte Antriebsleistung optimal ausgenutzt wird.4. Diaphragm pump according to claim 1, characterized in that the installed drive power is optimally used by a combined pressure and flow regulator on the variable displacement pump ( 1 ).
DE4016300A 1990-05-21 1990-05-21 Hydro-membrane pump assembly - has drive of work piston activated by double-acting hydraulic cylinder Ceased DE4016300A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4016300A DE4016300A1 (en) 1990-05-21 1990-05-21 Hydro-membrane pump assembly - has drive of work piston activated by double-acting hydraulic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4016300A DE4016300A1 (en) 1990-05-21 1990-05-21 Hydro-membrane pump assembly - has drive of work piston activated by double-acting hydraulic cylinder

Publications (1)

Publication Number Publication Date
DE4016300A1 true DE4016300A1 (en) 1991-11-28

Family

ID=6406869

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4016300A Ceased DE4016300A1 (en) 1990-05-21 1990-05-21 Hydro-membrane pump assembly - has drive of work piston activated by double-acting hydraulic cylinder

Country Status (1)

Country Link
DE (1) DE4016300A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112434A1 (en) * 1981-03-28 1982-10-07 Depa GmbH, 4000 Düsseldorf PNEUMATIC DIAPHRAGM PUMP
DE3225626A1 (en) * 1981-12-23 1983-06-30 Champion Spark Plug Co., Toledo, Ohio DIAPHRAGM PUMP
DE3801160A1 (en) * 1988-01-16 1989-09-21 Filox Gmbh Membrane pump driven by oil engine - has control valves to facilitate handling of slurries

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112434A1 (en) * 1981-03-28 1982-10-07 Depa GmbH, 4000 Düsseldorf PNEUMATIC DIAPHRAGM PUMP
DE3225626A1 (en) * 1981-12-23 1983-06-30 Champion Spark Plug Co., Toledo, Ohio DIAPHRAGM PUMP
DE3801160A1 (en) * 1988-01-16 1989-09-21 Filox Gmbh Membrane pump driven by oil engine - has control valves to facilitate handling of slurries

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