EP0959247B1 - Pompe a membrane pour fluids hautement visqueux - Google Patents

Pompe a membrane pour fluids hautement visqueux Download PDF

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Publication number
EP0959247B1
EP0959247B1 EP98109157A EP98109157A EP0959247B1 EP 0959247 B1 EP0959247 B1 EP 0959247B1 EP 98109157 A EP98109157 A EP 98109157A EP 98109157 A EP98109157 A EP 98109157A EP 0959247 B1 EP0959247 B1 EP 0959247B1
Authority
EP
European Patent Office
Prior art keywords
diaphragm
diaphragm pump
pumps
adjustment
accordance
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.)
Expired - Lifetime
Application number
EP98109157A
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German (de)
English (en)
Other versions
EP0959247A1 (fr
Inventor
Karsten Dipl.-Ing. Jüterbock
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.)
J Wagner AG
Original Assignee
J Wagner AG
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 J Wagner AG filed Critical J Wagner AG
Priority to EP98109157A priority Critical patent/EP0959247B1/fr
Priority to DE59809021T priority patent/DE59809021D1/de
Publication of EP0959247A1 publication Critical patent/EP0959247A1/fr
Application granted granted Critical
Publication of EP0959247B1 publication Critical patent/EP0959247B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Definitions

  • the invention relates to a device for conveying pasty in particular Media with a first diaphragm pump, the first clamped in a housing Has membrane and a mechanically actuated first adjusting piston, which one in a first worked between the latter and the membrane in the housing Free space filled liquid forming a hydraulic linkage on the first Membrane acts, the first free space via an inserted in a return channel adjustable pressure relief valve to a storage space for the liquid connected and the first diaphragm pump a second designed in the same way Diaphragm pump is assigned, the second adjusting piston offset by 180 ° to the first adjusting piston of the first diaphragm pump can be driven, the delivery volume the second diaphragm pump is smaller than the delivery volume of the first Diaphragm pump and the second free space of the second diaphragm pump with the Storage space of the liquid is connected, the first pressure chamber of the first Diaphragm pump with a delivery channel, in which a check valve is inserted connected to the second pressure chamber of the second diaphra
  • a conveying device of this type which serves to convey gases, is defined by JA 60 116888 A known.
  • the discharge pressure is after the second Diaphragm pump higher than after the first diaphragm pump, making two Pressure relief valves are to be provided, which are designed for different pressures Need to become.
  • the construction effort is therefore considerable, which is also a high requirement Susceptibility to failure.
  • the object of the invention is therefore the conveyor of the aforementioned To improve the genus in such a way that it can be used for pasty media and that at only slight pulsations of the pumped medium occur in each pressure range, so that there is always a good spray pattern. Above all, it should be achieved that despite lower stroke frequencies even highly viscous media are sucked in and continuously conveyed can be and that it requires only a small amount of construction.
  • the delivery volume of the second diaphragm pump should be dependent on the diameter and / or the adjustment path of the second adjustment piston be adjustable, the delivery volume of the second diaphragm pump is approximately half the Delivery volume should correspond to the first diaphragm pump.
  • Pressure relief valve can not only continuously the back pressure on the Tool set and thus adapted to the work to be performed be, but the device regulates itself depending on the Back pressure, with continuous conveyance.
  • the two open spaces of the Diaphragm pumps are always the same pressure, pressure peaks thereby reliably avoided.
  • the device shown in Figures 1 to 3 and designated 1 and 1 ' is used for Promotion of particularly highly viscous media from one storage container 4 to one e.g. designed as a spray gun implement 2 via a hose 3 to the Device 1 is connected, and consists essentially of a first Diaphragm pump 21 and a second diaphragm pump 31, which together in one two-part housing 11 are installed.
  • the diaphragm pumps 21 and 31 each have one between the two housing parts 11 'and 11 ", which is fixed by means of screws 12 are connected to each other, clamped membrane 22 and 32 and this assigned adjusting pistons 23 and 33, which are located in between these and Membrane 22 or 32 provided free spaces 24 or 34 liquid columns, which each form a hydraulic linkage on which diaphragms 22 and 32 act.
  • the diaphragm pumps 21 and 31 are provided with pressure chambers 25 and 35, respectively.
  • the adjusting pistons 23 and 33 are driven by eccentric disks 43 and 44, respectively together on a drive shaft supported in the housing 11 by means of roller bearings 42 41 are arranged.
  • the eccentric discs 43 and 44 act, however, offset by 180 ° the adjusting pistons 23 and 33, so that they are adjusted in opposite directions to each other.
  • a storage space 13 for the in the free spaces 24 and 34 located liquid is provided via a return line 14, by means of two Channels 16 and 18 connected to the free spaces 24 and 34 and with one Pressure relief valve 15 is equipped, can get into the storage space 13.
  • the Adjusting pistons 23 and 33 are provided with slot-like recesses 30 and 40, respectively upon immersion of the adjusting pistons 23 or 33 in the storage space 13 liquid in the Open spaces 24 and 34 can flow in.
  • the two pressure chambers 25 and 35 of the diaphragm pumps 21 and 31 are through one Delivery channel 26 connected to each other, in which a check valve 27 is inserted.
  • the two channels 16 and 18 with check valves 17 and 19 respectively equipped, and to support the return of the membrane 22 of the first Diaphragm pump 21 serves a return spring 28 which acts on the diaphragm 22.
  • the eccentric disks 43 and 44 the adjusting pistons 23 and 33 of the first diaphragm pump 21 and the second Diaphragm pump 31 actuated offset from one another by 180 °.
  • the Diaphragm 22 of the first diaphragm pump 21 is closed via an inlet valve 29 conveying medium from the reservoir 4 and sucked into the pressure chamber 25 brought in.
  • the adjusting piston 33 of the second diaphragm pump 31 can, because the Eccentric disc 44 is arranged offset by 180 ° with respect to eccentric disc 43, dodge in the direction of the drive shaft 41.
  • the subsequent suction stroke of the Diaphragm 22 of the first diaphragm pump 21 guides the diaphragm 32 of the second Diaphragm pump 31 a pressure stroke, which in the pressure chamber 35 of the second Diaphragm pump 31 medium is thus in the interval between two Pressure strokes of the first diaphragm pump 21 supplied to the working device 2 under pressure, see above that no pulsations can be determined and thus a constant promotion of the medium the implement 2 is given.
  • a bolt 46 pivotally mounted rocker 45 provided by a Servo device 47 can be driven.
  • the servo device 47 consists of a inserted in a cylinder 48, on both sides by alternately feeding one Pressurized pressure medium flowing into the pressure chambers 51 or 52 Piston 49, the piston rod 50 of which acts on the rocker 45.
  • Adjusting pistons 23 and 33 of the diaphragm pumps 21 and 31 return springs 53 and 54 assigned, which act on the adjusting pistons 23 and 33 and on the housing 11 support.
  • this embodiment is in a channel 20 through which the Pressure chamber 35 of second diaphragm pump 31 is connected to hose line 3, a check valve 36 is installed, through which the pressure when the implement is closed 2 is locked in the hose line 3.
  • the adjusting piston 33' is the second diaphragm pump 31 'in the axial direction of the first diaphragm pump 21 and the two Diaphragm pumps 21 and 31 'can be driven together by means of the eccentric disk 43', which is mounted on the drive shaft 41 '.
  • the adjusting piston 33 'of the second Diaphragm pump 31 'accommodating cylinder space 37 is in this case connected via a line 38 connected to the free space 34 'so that the adjusting movements of the adjusting piston 33' via the hydraulic linkage located between the latter and the membrane 32 be transferred to this.
  • the device 1 ' is effective in the same way as that Device 1 according to Figures 1 and 2.

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

Claims (7)

  1. Dispositif (1) pour le transport notamment de milieux pâteux avec une première pompe à diaphragme (21) comprenant un premier diaphragme (22) disposé dans un carter (11) et un piston de réglage (23) actionné mécaniquement et agissant sur le premier diaphragme (22) par l'intermédiaire d'un liquide formant une transmission hydraulique rempli dans un premier espace (24) prévu dans le carter (11) entre le piston (23) et le diaphragme (22), où le premier espace (24) est raccordé par l'intermédiaire d'une vanne de limitation de pression (15) prévue dans un canal de retour (14) à une chambre de stockage (13) pour le liquide, où il est attribué à la première pompe à diaphragme (21) une deuxième pompe à diaphragme (31) de conception identique, dont le deuxième piston de réglage (33) est entraíné décalé de 180° par rapport au premier piston de réglage (23) de la première pompe à diaphragme (21), où le débit de la deuxième pompe à diaphragme (31) est plus petit que le débit de la première pompe à diaphragme (21), où le deuxième espace (34) de la deuxième pompe à diaphragme (31) est raccordé à la chambre de stockage (13) pour le liquide, où la première chambre de pression (25) de la première pompe à diaphragme (21) est liée, par l'intermédiaire d'un canal de refoulement (26) contenant un clapet anti-retour (27), avec la deuxième chambre de pression (35) de la deuxième pompe à diaphragme (31), qui est raccordée par l'intermédiaire d'une conduite de refoulement (3) avec un outil de travail tel que p. ex. un pistolet pulvérisateur (2),
    caractérisé en ce que
    les diaphragmes (22, 32) des deux pompes à diaphragme (21, 31) sont serrés, espacés latéralement, dans un plan dans un carter (11) de préférence divisé et que les pistons de réglage (23, 33) des deux pompes à diaphragme (21, 31) sont entraínés par l'intermédiaire de disques excentriques (43, 44) montés décalés de 180° l'un par rapport à l'autre sur un arbre d'entraínement commun (41) ou par l'intermédiaire d'une bascule (45) réglable au moyen d'un servo-équipement (49).
  2. Dispositif d'après la revendication 1,
    caractérisé en ce que
    les pistons de réglage (23, 33') des deux pompes à diaphragme (21, 31) sont disposés à fleur l'un par rapport à l'autre dans le carter (11) et entraínés par un disque excentrique (43') prévu sur un arbre d'entraínement (41') monté perpendiculairement entre eux, et que la chambre de cylindre (37) recevant le deuxième piston de réglage (33') de la deuxième pompe à diaphragme (31') est raccordée par une conduite (38) avec le deuxième espace (34) attribué à son diaphragme (32).
  3. Dispositif d'après la revendication 1 ou 2,
    caractérisé en ce que
    le débit de la deuxième pompe à diaphragme (31) est réglable en dépendance du diamètre et/ou de la course de réglage du deuxième piston de réglage (33).
  4. Dispositif d'après la revendication 3,
    caractérisé en ce que
    le débit de la deuxième pompe à diaphragme (31) correspond à peu près à la moitié du débit de la première pompe à diaphragme (21).
  5. Dispositif d'après une ou plusieurs des revendications 1 à 4,
    caractérisé en ce que
    aux deux pompes à diaphragme (21, 31), il est attribué une chambre de stockage commune (13) pour le liquide, prévue dans le carter (11), et dans laquelle se laissent introduire partiellement les pistons de réglage (23, 33) des pompes à diaphragme (21, 31).
  6. Dispositif d'après une ou plusieurs des revendications 1 à 5,
    caractérisé en ce que
    la vanne de limitation de pression (15) est attribuée aux deux pompes à diaphragme (21, 31) et que les espaces (24, 34) des deux pompes à diaphragme (21, 31) sont raccordés respectivement par l'intermédiaire d'un canal (16 ou 18) muni d'une vanne unidirectionnelle (17 ou 19) à une conduite de retour (14) attribuée à la vanne de limitation de pression (15).
  7. Dispositif d'après une ou plusieurs des revendications 1 à 6,
    caractérisé en ce que
    la conduite de refoulement (3) de la deuxième pompe à diaphragme (31) est équipée d'une vanne de barrage et une vanne de retenue (36).
EP98109157A 1998-05-20 1998-05-20 Pompe a membrane pour fluids hautement visqueux Expired - Lifetime EP0959247B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98109157A EP0959247B1 (fr) 1998-05-20 1998-05-20 Pompe a membrane pour fluids hautement visqueux
DE59809021T DE59809021D1 (de) 1998-05-20 1998-05-20 Membranpumpe zur förderung hochviskoser medien

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98109157A EP0959247B1 (fr) 1998-05-20 1998-05-20 Pompe a membrane pour fluids hautement visqueux

Publications (2)

Publication Number Publication Date
EP0959247A1 EP0959247A1 (fr) 1999-11-24
EP0959247B1 true EP0959247B1 (fr) 2003-07-16

Family

ID=8231964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109157A Expired - Lifetime EP0959247B1 (fr) 1998-05-20 1998-05-20 Pompe a membrane pour fluids hautement visqueux

Country Status (2)

Country Link
EP (1) EP0959247B1 (fr)
DE (1) DE59809021D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102483055A (zh) * 2009-08-11 2012-05-30 卓越剂量技术有限公司 隔膜机

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8317493B2 (en) * 2007-07-13 2012-11-27 Integrated Designs L.P. Precision pump having multiple heads and using an actuation fluid to pump one or more different process fluids
EP3115607B1 (fr) * 2015-07-10 2018-02-21 J. Wagner AG Pompe a double membrane
DE102017117983A1 (de) * 2017-08-08 2019-02-14 Scheugenpflug Ag Pumpen-Einheit, damit ausgestattete Lagervorrichtung sowie Verfahren zum Betreiben der Lagervorrichtung
US11950677B2 (en) 2019-02-28 2024-04-09 L'oreal Devices and methods for electrostatic application of cosmetics
CN113090512B (zh) * 2021-05-17 2025-05-23 陕西航天德林科技集团有限公司 一种液体增压装置
CN114962226B (zh) * 2022-06-22 2025-08-08 宁波市艾博尔电机制造有限公司 一种平头流体室三腔泄压反渗透隔膜泵
CN120720206A (zh) * 2025-09-02 2025-09-30 杭州大潮泵业制造有限公司 一种用于电动隔膜泵的行程调节机构

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605710A (en) * 1948-12-08 1952-08-05 William H Mashinter Radial pump
US2752854A (en) * 1954-12-24 1956-07-03 William C Prior Hydraulically actuated diaphragm pump
US3775030A (en) * 1971-12-01 1973-11-27 Wanner Engineering Diaphragm pump
US4060178A (en) * 1974-05-10 1977-11-29 Miller Mfg. Co. Of Schiller Park, Inc. Metering pump
DE2923284A1 (de) * 1979-06-08 1980-12-11 Wagner Gmbh J Verfahren und vorrichtung zur leistungsregelung von membranpumpen
JPS60116888A (ja) * 1983-11-26 1985-06-24 Showa Seiki Kogyo Kk ダイヤフラム式オイルフリ−・ガス圧縮機
DE19514316C1 (de) 1995-04-18 1996-08-22 Wagner Gmbh J Membranpumpvorrichtung
DE69732802T2 (de) * 1996-06-07 2006-04-06 Hydro Leduc Flüssigkeitshochdruckpumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102483055A (zh) * 2009-08-11 2012-05-30 卓越剂量技术有限公司 隔膜机

Also Published As

Publication number Publication date
EP0959247A1 (fr) 1999-11-24
DE59809021D1 (de) 2003-08-21

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