EP2249033A3 - Equalization of the supply flow of oscillating pressure pumps - Google Patents

Equalization of the supply flow of oscillating pressure pumps Download PDF

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Publication number
EP2249033A3
EP2249033A3 EP10004530A EP10004530A EP2249033A3 EP 2249033 A3 EP2249033 A3 EP 2249033A3 EP 10004530 A EP10004530 A EP 10004530A EP 10004530 A EP10004530 A EP 10004530A EP 2249033 A3 EP2249033 A3 EP 2249033A3
Authority
EP
European Patent Office
Prior art keywords
displacement pumps
oscillating
line
equalization
substantially uniform
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.)
Granted
Application number
EP10004530A
Other languages
German (de)
French (fr)
Other versions
EP2249033A2 (en
EP2249033B1 (en
Inventor
Matthias Sauter
Matthias Dörling
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.)
Lewa GmbH
Original Assignee
Lewa 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 Lewa GmbH filed Critical Lewa GmbH
Publication of EP2249033A2 publication Critical patent/EP2249033A2/en
Publication of EP2249033A3 publication Critical patent/EP2249033A3/en
Application granted granted Critical
Publication of EP2249033B1 publication Critical patent/EP2249033B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • 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
    • F04B11/0041—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation by piston speed control
    • 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
    • F04B11/0058—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

Bei einem Verfahren zur Vergleichmäßigung des Förderstroms bei oszillierenden Verdrängerpumpen, deren Antrieb mittels eines Antriebsmotors über eine rotierende Welle erfolgt, wird derart vorgegangen, dass die Erzeugung des Fluidförderstroms in einer Förderleitung (5) mittels wenigstens zweier oszillierender Verdrängerpumpen (1, 2) erfolgt, deren Antriebsmotoren (6, 7) derart gesteuert werden, dass der insgesamt erzeugte Förderstrom in der Förderleitung (5) weitgehend gleichmäßig bzw. konstant ist.In a method for equalizing the flow rate in oscillating displacement pumps whose drive is effected by means of a drive motor via a rotating shaft, the procedure is such that the generation of the fluid flow in a conveying line (5) by means of at least two oscillating displacement pumps (1, 2) takes place Drive motors (6, 7) are controlled such that the total flow rate generated in the delivery line (5) is substantially uniform or constant.

Die zur Durchführung dieses Verfahrens vorgesehene Vorrichtung gemäß der Erfindung zeichnet sich aus durch wenigstens zwei oszillierende Verdrängerpumpen (1, 2), deren Druckleitung (3, 4) zum Überlagern der einzelnen Förderströme an eine gemeinsame Förderleitung (5) angeschlossen ist und die jeweils einen Antriebsmotor (6, 7) aufweisen, die ohne mechanische Kopplung in elektronischer Synchronisation zum Erzielen eines weitgehend gleichmäßigen bzw. konstanten Summenförderstroms betreibbar sind.

Figure imgaf001
The device provided for carrying out this method according to the invention is characterized by at least two oscillating positive displacement pumps (1, 2) whose pressure line (3, 4) for superimposing the individual flow rates on a common feed line (5) is connected and each having a drive motor (6, 7), which are operable without mechanical coupling in electronic synchronization to achieve a substantially uniform or constant cumulative flow.
Figure imgaf001
EP10004530.1A 2009-05-08 2010-04-29 Equalization of the supply flow of oscillating pressure pumps Active EP2249033B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009020414A DE102009020414A1 (en) 2009-05-08 2009-05-08 Homogenization of the flow rate in oscillating positive displacement pumps

Publications (3)

Publication Number Publication Date
EP2249033A2 EP2249033A2 (en) 2010-11-10
EP2249033A3 true EP2249033A3 (en) 2011-11-02
EP2249033B1 EP2249033B1 (en) 2014-11-12

Family

ID=42278269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10004530.1A Active EP2249033B1 (en) 2009-05-08 2010-04-29 Equalization of the supply flow of oscillating pressure pumps

Country Status (5)

Country Link
US (1) US20100284827A1 (en)
EP (1) EP2249033B1 (en)
JP (1) JP5567385B2 (en)
DE (1) DE102009020414A1 (en)
ES (1) ES2529678T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011051028A1 (en) 2011-06-10 2012-12-13 Prominent Dosiertechnik Gmbh Diaphragm dosing pump for elastic fluids, has two dosing heads, which have product compartment with inlet and outlet and membrane, which is moved to change product compartment volume
DE102014008321B3 (en) * 2014-05-30 2015-09-17 Lewa Gmbh pulsator
JP6570846B2 (en) * 2015-03-09 2019-09-04 アコマ医科工業株式会社 Metering pump driving method, metering pump driving device, vaporizer and anesthesia device
US20190264679A1 (en) * 2016-11-14 2019-08-29 Pagani Geotechnical Equipment S.R.L. Volumetric Pump
TWI650284B (en) * 2017-09-30 2019-02-11 Microjet Technology Co., Ltd Controlling method of fliud device
RU2761258C1 (en) * 2020-06-30 2021-12-06 Публичное акционерное общество "ОДК-Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") Load balancing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130295A1 (en) * 1991-09-12 1993-03-25 Ludwig Bluecher Dispensing system for aggressive fluids or pastes - has double piston pump units operated in synchronised cycle to deliver output keeping pulsation low
WO1995009305A1 (en) * 1993-09-27 1995-04-06 Diversey Corporation Flow-metered pumping with load compensation system and method
WO2002084117A2 (en) * 2001-02-02 2002-10-24 Joma-Hydromechanic Gmbh Speed variable feed pump
DE10134138A1 (en) * 2001-07-13 2003-02-06 Oranienburger Pumpen Verdichte Fluid machine has two individual units each driven by individual drive and interconnected by flow guide, whereby shut-off and/or reversing valves are individually provided, and at least one drive has RPM controller

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US3917531A (en) * 1974-02-11 1975-11-04 Spectra Physics Flow rate feedback control chromatograph
US4359312A (en) * 1978-08-15 1982-11-16 Zumtobel Kg Reciprocating pump for the pulsation-free delivery of a liquid
US4321014A (en) * 1979-12-31 1982-03-23 Polaroid Corporation Constant flow pumping apparatus
DE3203722C2 (en) * 1982-02-04 1985-08-01 Gynkotek Gesellschaft für den Bau wissenschaftlich-technischer Geräte mbH, 8000 München Thrust piston pump for low-pulsation pumping of a liquid
CA1186166A (en) * 1982-02-27 1985-04-30 Katsuhiko Saito Liquid chromatograph
JPH0754114B2 (en) * 1985-02-01 1995-06-07 日本電子株式会社 Control method of liquid delivery pump
DE3546189A1 (en) 1985-12-27 1987-07-02 Ott Kg Lewa METHOD AND DEVICE FOR MEASURING FLOW IN OSCILLATING DISPLACEMENT PUMPS
JPS63173866A (en) * 1987-01-09 1988-07-18 Hitachi Ltd Controlling system for nonpulsation pump
JP2713401B2 (en) * 1987-01-17 1998-02-16 日本分光株式会社 Reciprocating pump
US4919595A (en) * 1987-03-03 1990-04-24 Beckman Instruments, Inc. Fluid delivery system with deficit flow compensation
JPS63255575A (en) * 1987-04-10 1988-10-21 Yoshimoto Seisakusho:Kk Pump device
JP2824575B2 (en) * 1987-08-11 1998-11-11 株式会社日立製作所 Low pulsating flow pump
JP2503804B2 (en) * 1991-04-30 1996-06-05 株式会社島津製作所 Liquid pump
FR2726332B1 (en) * 1994-10-26 1997-01-24 Francois Couillard PISTON PUMPING SYSTEM DELIVERING FLUIDS WITH SUBSTANTIALLY CONSTANT FLOW RATE
DE19849785C1 (en) 1998-10-28 2000-03-16 Ott Kg Lewa Method and device for adjusting feed in oscillating positive-displacement pumps driven by means of driving motor using a rotating shaft and a driving mechanism such as crank gearing, gives versatility in operation
FI106705B (en) * 1999-04-09 2001-03-30 Esa Kuismanen Procedure and arrangement for pumping material
JP2001254684A (en) * 2000-03-10 2001-09-21 Gl Sciences Inc Liquid feeder
US6997683B2 (en) * 2003-01-10 2006-02-14 Teledyne Isco, Inc. High pressure reciprocating pump and control of the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130295A1 (en) * 1991-09-12 1993-03-25 Ludwig Bluecher Dispensing system for aggressive fluids or pastes - has double piston pump units operated in synchronised cycle to deliver output keeping pulsation low
WO1995009305A1 (en) * 1993-09-27 1995-04-06 Diversey Corporation Flow-metered pumping with load compensation system and method
WO2002084117A2 (en) * 2001-02-02 2002-10-24 Joma-Hydromechanic Gmbh Speed variable feed pump
DE10134138A1 (en) * 2001-07-13 2003-02-06 Oranienburger Pumpen Verdichte Fluid machine has two individual units each driven by individual drive and interconnected by flow guide, whereby shut-off and/or reversing valves are individually provided, and at least one drive has RPM controller

Also Published As

Publication number Publication date
DE102009020414A1 (en) 2010-11-11
JP2010261461A (en) 2010-11-18
ES2529678T3 (en) 2015-02-24
EP2249033A2 (en) 2010-11-10
US20100284827A1 (en) 2010-11-11
EP2249033B1 (en) 2014-11-12
JP5567385B2 (en) 2014-08-06

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