EP0670010B1 - Pumpe zum mischen - Google Patents

Pumpe zum mischen Download PDF

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Publication number
EP0670010B1
EP0670010B1 EP91919126A EP91919126A EP0670010B1 EP 0670010 B1 EP0670010 B1 EP 0670010B1 EP 91919126 A EP91919126 A EP 91919126A EP 91919126 A EP91919126 A EP 91919126A EP 0670010 B1 EP0670010 B1 EP 0670010B1
Authority
EP
European Patent Office
Prior art keywords
pump
mixing pump
piston
membrane
chamber
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
EP91919126A
Other languages
English (en)
French (fr)
Other versions
EP0670010A1 (de
Inventor
Tauno Pirhonen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0670010A1 publication Critical patent/EP0670010A1/de
Application granted granted Critical
Publication of EP0670010B1 publication Critical patent/EP0670010B1/de
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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time

Definitions

  • the invention relates to a mixing pump by means of which it is possible to mix certain additives, such as soap solutions, emulsifiable oils etc. for instance to water as disclosed in eg. DK-A-138 277 (corresponding to US-A-3 926 345).
  • the emulsion is mixed in a storage tank, from where it is transmitted, in pressurized state, to the place of use.
  • problems arise by the impurity of water, lime in the first place, which makes sliding surfaces, filters and pipe lines dirty, because in the storage tank lime residue settles from the emulsion and is drifted forward leading to said disadvantages.
  • the emulsion is most apt to get and also to produce bacteria and yeast fungi in the storage tank, whereby the function of apparatus is disturbed.
  • the most important advantage of the invention can be considered the fact that it is possible to get totally rid of the storing of the mixed emulsion and neither do the impurities of water cause problems when on the water-transmitting side a membrane batcher is utilized.
  • a double-acting piston pump on the oil side an accurate concentration for the emulsion is produced and by means of stepless adjustment of the stroke an accurate percentage regulation of the emulsion concentration is achieved. Since the mixing pump is strong and simple, service and maintenance costs are saved and reliability guaranteed.
  • a membrane pump 4, 7, 8, 9 and a piston pump 6, 12, 14, 15 are mounted by means of articulated joints 17 and joined together with arms 3,5.
  • the oil, which is to mixed enters the piston pump along a tube line (ö) and is fed forward to the membrane pump along line 16.
  • the water, in which oil is to be mixed in this case enters the membrane over two different tube lines (V 1 ), (V 2 ). From the membrane pump the water travels along two routes either over valve 1.1 or 1.2 to the departing emulsion line (E), to which also the oil enters it along line 16.
  • the inlet of pressurized water to the membrane pump is adjusted by valves 2.1 and 2.2.
  • valves 2.1 and 1.2 are opened.
  • the water then flowes over valve 2.1 to the chamber, formed by the one half 4 of the pump, and presses piston 7 and membrane 8 against the other pump half 9, whereby the water flows over valve 1.2 from the chamber, formed by the pump half 9, to line (E).
  • the membrane pump pumps, simultaneously, the oil by means of piston 15 from chamber 6 over directional valve 13 to line 16 and further into the water flowing in line (E).
  • the pumping energy of the mixing pump is taken from the energy of the water pressure.
  • the adjusting valves can be electrically controlled but mechnical control is also possible.
  • the linearity of the mixture can be improved by many means.
  • the cross-section ratio of the piston rod and piston/membrane in both pumps can be brought closer in relation to each other and an improvment can also be achieved by changing the mutual function of the pumps so that in both ones the piston rod moves inward at the same time and outward at the same time.

Landscapes

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

Claims (3)

  1. Eine Mischpumpe für flüssige Mittel, die eine mit Druckflüssigkeit getriebene Pumpeinheit (4, 9, 7) mit zwei Kammem umfasst, die gekoppelt ist mit einer, die Pumpbewegung mithilfe eines Schaftes (3, 5, 12) vermittelnder und stufenlos verstellbarer, Zwei-Kammer-Kolbepumpe (6, 14,15), die als Eingabe-Einheit (6, 14, 15) für ein Zusatzmittel funktioniert, gekennzeichnet dadurch, dass die Eingabe-Einheit angeschlossen ist, um das Zusatzmittel mit der die Mischpumpe (4, 9, 7) antreibenden Druckflüssigkeit zu mischen.
  2. Die Mischpumpe gemäss der Patentanspruche 1 gekennzeichnet dadurch, dass das Zusatzmittel in die antreibende Druckflüssigkeit (V1,V2) nach der Mischpumpe eingegeben wird (E).
  3. Die Mischpumpe gemäss den Patentanspruche 1 und 2 gekennzeichnet dadurch, dass die vor- und rückwärts verlaufende Bewegung der Pumpe aufrechterhalten wird durch das Öffnen und Schliessen von mechanisch oder elektrisch gesteuerten Ventilen (1.1), (1.2), (2.1), (2.2).
EP91919126A 1990-10-19 1991-11-18 Pumpe zum mischen Expired - Lifetime EP0670010B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI905159A FI90408C (fi) 1990-10-19 1990-10-19 Sekoituspumppu
PCT/FI1991/000341 WO1993010352A1 (en) 1990-10-19 1991-11-18 Mixing pump

Publications (2)

Publication Number Publication Date
EP0670010A1 EP0670010A1 (de) 1995-09-06
EP0670010B1 true EP0670010B1 (de) 1997-05-21

Family

ID=8531271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91919126A Expired - Lifetime EP0670010B1 (de) 1990-10-19 1991-11-18 Pumpe zum mischen

Country Status (4)

Country Link
EP (1) EP0670010B1 (de)
DE (1) DE69126220T2 (de)
FI (1) FI90408C (de)
WO (1) WO1993010352A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8257594B2 (en) 2008-02-07 2012-09-04 3M Innovative Properties Company Twin tank water-on-water filtration system
EP2519336A1 (de) * 2009-12-29 2012-11-07 3M Innovative Properties Company Wasser-auf-wasser-filtriersystem mit präzisionsmessvorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE360136B (de) * 1972-02-03 1973-09-17 Stabilator Ab
DE2556282C2 (de) * 1975-12-13 1982-08-05 Wilfried W. 6340 Baar Burkhard Vorrichtung zum gegensinnigen stufenlosen Verstellen zweier Dosierpumpenkolben
EP0451942A1 (de) * 1990-04-11 1991-10-16 Pmc, Inc. Doppelwirkende Verdrängerpumpe

Also Published As

Publication number Publication date
FI905159A (fi) 1992-04-20
FI90408B (fi) 1993-10-29
FI905159A0 (fi) 1990-10-19
FI90408C (fi) 1994-02-10
WO1993010352A1 (en) 1993-05-27
DE69126220T2 (de) 1998-01-08
DE69126220D1 (de) 1997-06-26
EP0670010A1 (de) 1995-09-06

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