EP0959247B1 - Membranpumpe zur förderung hochviskoser medien - Google Patents
Membranpumpe zur förderung hochviskoser medien Download PDFInfo
- 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
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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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Description
- Figur 1
- die aus zwei zusammenwirkenden Membranpumpen bestehende Vorrichtung, deren Verstellkolben durch Exzenterscheiben antreibbar sind,
- Figur 2
- die Fördervorrichtung nach Figur 1 mit durch eine Wippe
antreibbarer Verstellkolben,
und - Figur 3
- eine Fördervorrichtung gemäß Figur 1 mit axial hintereinander angeordneten gemeinsam durch eine Exzenterscheibe antreibbaren Verstellkolben.
Claims (7)
- Vorrichtung (1) zur Förderung insbesondere pastöser Medien mit einer ersten Membranpumpe (21), die eine in einem Gehäuse (11) eingespannte erste Membran (22) und einen mechanisch betätigbaren ersten Verstellkolben (23) aufweist, der über eine in einen zwischen diesem und der Membran (22) in dem Gehäuse (11) eingearbeiteten ersten Freiraum (24) eingefülltes, ein hydraulisches Gestänge bildende Flüssigkeit auf die erste Membran (22) einwirkt, wobei der erste Freiraum (24) über ein in einen Rücklaufkanal (14) eingesetztes einstellbares Druckbegrenzungsventil (15) an einen Vorratsraum (13) für die Flüssigkeit angeschlossen und der ersten Membranpumpe (21) eine in gleicher Weise gestaltete zweite Membranpumpe (31) zugeordnet ist, deren zweiter Verstellkolben (33) um 180° versetzt zu dem ersten Verstellkolben (23) der ersten Membranpumpe (21) antreibbar ist, wobei das Fördervolumen der zweiten Membranpumpe (31) kleiner bemessen ist als das Fördervolumen der ersten Membranpumpe (21) und der zweite Freiraum (34) der zweiten Membranpumpe (31) mit dem Vorratsraum (13) der Flüssigkeit verbunden ist, der erste Druckraum (25) der ersten Membranpumpe (21) über einen Förderkanal (26), in den ein Rückschlagventil (27) eingesetzt ist, mit dem zweiten Druckraum (35) der zweiten Membranpumpe (31) verbunden und dieser über eine Förderleitung (3) mit einem Arbeitsgerät, beispielsweise einer Spritzpistole (2), in Verbindung steht,
dadurch gekennzeichnet, dass die Membrane (22, 32) der beiden Membranpumpen (21, 31) in einer Ebene mit seitlichem Abstand zueinander in dem vorzugsweise zweiteiligen Gehäuse (11) eingespannt sind und dass die Verstellkolben (23, 33) der beiden Membranpumpen (21, 31) über auf einer gemeinsamen Antriebswelle (41) um 180° versetzt zueinander angeordnete Exzenterscheiben (43, 44) oder mittels einer durch eine Servoeinrichtung (49) verstellbare Wippe (45) antreibbar sind. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Verstellkolben (23, 33') der beiden Membranpumpen (21, 31) in Fluchtrichtung zueinander in dem Gehäuse (11) angeordnet und durch eine auf einer zwischen diesen und achssenkrecht zu diesen eingesetzten Antriebswelle (41') angebrachten Exzenterscheibe (43') antreibbar sind und daß der den zweiten Verstellkolben (33') der zweiten Membranpumpe (31') aufnehmende Zylinderraum (37) über eine Leitung (38) mit dem deren Membran (32) zugeordneten zweiten Freiraum (34) verbunden ist. - Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß das Fördervolumen der zweiten Membranpumpe (31) in Abhängigkeit von dem Durchmesser und/oder dem Verstellweg des zweiten Verstellkolbens (33) einstellbar ist. - Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß das Fördervolumen der zweiten Membranpumpe (31) etwa der Hälfte des Fördervolumens der ersten Membranpumpe (21) entspricht. - Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß den beiden Membranpumpen (21, 31) ein gemeinsamer in dem Gehäuse (11) vorgesehener Vorratsraum (13) für die Flüssigkeit zugeordnet ist, in den die Verstellkolben (23, 33) der Membranpumpe (21, 31) teilweise einführbar sind. - Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß das Druckbegrenzungsventil (15) beiden Membranpumpen (21, 31) zugeordnet ist. und dass die Freiräume (24, 34) der beiden Membranpumpen (21, 31) jeweils über einen mit einem Einwegventil (17 bzw. 19) versehenen Kanal (16 bzw. 18) an eine dem Druckbegrenzungsventil (15) zugeordnete Rücklaufleitung (14) angeschlossen sind. - Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Förderleitung (3) der zweiten Membranpumpe (31) mit einem Absperr- und Rückschlagventil (36) versehen ist.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98109157A EP0959247B1 (de) | 1998-05-20 | 1998-05-20 | Membranpumpe zur förderung hochviskoser medien |
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 (de) | 1998-05-20 | 1998-05-20 | Membranpumpe zur förderung hochviskoser medien |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0959247A1 EP0959247A1 (de) | 1999-11-24 |
EP0959247B1 true EP0959247B1 (de) | 2003-07-16 |
Family
ID=8231964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109157A Expired - Lifetime EP0959247B1 (de) | 1998-05-20 | 1998-05-20 | Membranpumpe zur förderung hochviskoser medien |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0959247B1 (de) |
DE (1) | DE59809021D1 (de) |
Cited By (1)
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 (4)
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 (de) * | 2015-07-10 | 2018-02-21 | J. Wagner AG | Doppelmembranpumpe |
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 |
Family Cites Families (8)
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 |
JP3990732B2 (ja) * | 1996-06-07 | 2007-10-17 | イドロ レデュク | 任意の流体用に使用できる高圧ポンプ |
-
1998
- 1998-05-20 EP EP98109157A patent/EP0959247B1/de not_active Expired - Lifetime
- 1998-05-20 DE DE59809021T patent/DE59809021D1/de not_active Expired - Fee Related
Cited By (1)
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 |
---|---|
DE59809021D1 (de) | 2003-08-21 |
EP0959247A1 (de) | 1999-11-24 |
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