DE354883T1 - PUMP DEVICE FOR VERY ABRASIVE THICKEN. - Google Patents

PUMP DEVICE FOR VERY ABRASIVE THICKEN.

Info

Publication number
DE354883T1
DE354883T1 DE198989830355T DE89830355T DE354883T1 DE 354883 T1 DE354883 T1 DE 354883T1 DE 198989830355 T DE198989830355 T DE 198989830355T DE 89830355 T DE89830355 T DE 89830355T DE 354883 T1 DE354883 T1 DE 354883T1
Authority
DE
Germany
Prior art keywords
chamber
abrasive
aggressive
thick materials
materials according
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.)
Pending
Application number
DE198989830355T
Other languages
German (de)
Inventor
Ivo I-16138 Genoa Ognibene
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.)
Ansaldo SpA
Original Assignee
Ansaldo SpA
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 Ansaldo SpA filed Critical Ansaldo SpA
Publication of DE354883T1 publication Critical patent/DE354883T1/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06Pumps having fluid drive
    • F04B43/067Pumps having fluid drive the fluid being actuated directly by a piston

Landscapes

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

Claims (1)

PatentansprüchePatent claims 1. Vorrichtung zum Pumpen von insbesondere abrasiven oder aggressiven Dickstoffen, dadurch gekennzeichnet, daß sie einen mittels eines flexiblen und undehnbaren Beutels (20) in zwei Kammern (21,22;122) unterteilten Pumpenkörper (10) enthält; wobei:1. Device for pumping particularly abrasive or aggressive thick materials, characterized in that it contains a pump body (10) divided into two chambers (21,22;122) by means of a flexible and inextensible bag (20); wherein: - die erste Kammer (21) die abrasive Flüssigkeit (13) enthält und mit Einlaß- und Auslaßkanälen (11,12) für die Flüssigkeit versehen ist, die mit in geeigneter Weise gesteuerten oder automatischen Ventilen ausgerüstet sind;- the first chamber (21) contains the abrasive liquid (13) and is provided with inlet and outlet channels (11, 12) for the liquid, which are equipped with suitably controlled or automatic valves; - die zweite Kammer (22;122) eine inkompressible und nichtaggressive Flüssigkeit enthält;- the second chamber (22;122) contains an incompressible and non-aggressive liquid; - eine Einrichtung (15; 30) zum Bewegen der flexiblen Membran (20) vorgesehen ist, die eine zyklische Veränderung des Volumens der ersten Kammer (21) in beiden Richtungen nach sich zieht, wodurch eine Pumpwirkung erzeugt wird. *- a device (15; 30) is provided for moving the flexible membrane (20), which results in a cyclical change in the volume of the first chamber (21) in both directions, thereby producing a pumping effect. * I 2. Pumpvorrichtung für insbesondere abrasive und aggressive Dickstoffe nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, daß sie gemäß einer ersten AusführungsformI 2. Pumping device for particularly abrasive and aggressive thick materials according to the preceding claim, characterized in that according to a first embodiment einen Tauchkolben (15) aufweist, der innerhalb der zweiten Kammer (22) wirkt und auf diese Weise eine Bewegung der flexiblen Membran (20) hervorruft.a plunger (15) which acts within the second chamber (22) and thus causes a movement of the flexible membrane (20). 3. Pumpvorrichtung für insbesondere abrasive und aggressive Dickstoffe nach Anspruch 2, dadurch gekennzeichnet, daß der Tauchkolben (15) durch eine Dichtung in der der zweiten Kammer (22) benachbarten Wand des Pumpenkörpers hindurchtritt, so daß das Volumen der zweiten Kammer konstant ist.3. Pumping device for particularly abrasive and aggressive thick materials according to claim 2, characterized in that the plunger (15) passes through a seal in the wall of the pump body adjacent to the second chamber (22), so that the volume of the second chamber is constant. 1010 4. Pumpvorrichtung für insbesondere abrasive und aggressive Dickstoffe nach den Ansprüchen 2 und 3, dadurch gekennzeichnet, daß die Abdichtung des durch die Wand des Pumpenkörpers hindurchgehenden Tauchkolbens (15) mittels eines Dichtungsrings (24) bewerkstelligt wird, hinter dem sich ein Tank (26) für die in der zweiten Kammer (22) enthaltene nichtabrasive Flüssigkeit befindet; wobei eine Einrichtung zum Verbinden des Tanks und der zweiten Kammer und eine Einrichtung zum Öffnen dieser Verbindungseinrichtung vorgesehen ist, die wirksam wird, wenn sich der Tauchkolben (15) in der dem Ende der Ansaugphase entsprechenden Totpunktlage befindet. 4. Pumping device for particularly abrasive and aggressive thick materials according to claims 2 and 3, characterized in that the sealing of the plunger (15) passing through the wall of the pump body is achieved by means of a sealing ring (24), behind which there is a tank (26) for the non-abrasive liquid contained in the second chamber (22); a device for connecting the tank and the second chamber and a device for opening this connecting device are provided, which becomes effective when the plunger (15) is in the dead center position corresponding to the end of the suction phase. 5. Pumpvorrichtung für insbesondere abrasive und ag-2.5 gressive Dickstoffe nach Anspruch 1, dadurch gekennzeichnet, daß sie gemäß einer anderen Ausführungsform eine Zufuhr- bzw. Saugeinrichtung (30) aufweist für die nichtabrasive Flüssigkeit, die in der zweiten Kammer (122) enthalten ist, welche daher ein variables Volumen hat.5. Pumping device for particularly abrasive and aggressive thick materials according to claim 1, characterized in that, according to another embodiment, it comprises a supply or suction device (30) for the non-abrasive liquid contained in the second chamber (122), which therefore has a variable volume. 3030 6. Pumpvorrichtung für insbesondere abrasive und aggressive Dickstoffe nach Anspruch 5, dadurch gekennzeichnet, daß sie aufweist:6. Pumping device for particularly abrasive and aggressive thick materials according to claim 5, characterized in that it comprises: ,~ - eine Pumpe für die nichtabrasive und nichtkorrosive,~ - a pump for non-abrasive and non-corrosive > 35 Flüssigkeit;> 35 liquid; - eine ventilbetätigte Einrichtung zum Verbinden der zweiten Kammer abwechselnd mit dem Einlaß und dem Auslaß der Pumpe. - a valve-operated device for connecting the second chamber alternately to the inlet and the outlet of the pump. 7. Pumpvorrichtung für insbesondere abrasive und aggressive Dickstoffe nach den Ansprüchen 5 und 6, dadurch gekennzeichnet, daß der abgedichtete flexible Beutel (20) durch eine Platte (115) geführt wird, die von einer Stange (117) getragen ist, welche durch die Wand des Pumpenkörpers i-n die zweite Kammer (122) verläuft; wobei die Stange (117) in geeigneter Weise mit der ventilbetätigten Einrichtung gekoppelt ist.7. Pumping device for particularly abrasive and aggressive thick materials according to claims 5 and 6, characterized in that the sealed flexible bag (20) is guided by a plate (115) supported by a rod (117) which passes through the wall of the pump body into the second chamber (122); the rod (117) is suitably coupled to the valve-operated device.
DE198989830355T 1988-08-10 1989-08-01 PUMP DEVICE FOR VERY ABRASIVE THICKEN. Pending DE354883T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8812536A IT1225682B (en) 1988-08-10 1988-08-10 PARTICULARLY ABRASIVE LIQUID-SOLID MIXTURE PUMPING DEVICE

Publications (1)

Publication Number Publication Date
DE354883T1 true DE354883T1 (en) 1990-10-18

Family

ID=11141308

Family Applications (1)

Application Number Title Priority Date Filing Date
DE198989830355T Pending DE354883T1 (en) 1988-08-10 1989-08-01 PUMP DEVICE FOR VERY ABRASIVE THICKEN.

Country Status (9)

Country Link
EP (1) EP0354883A1 (en)
JP (1) JPH0275780A (en)
DE (1) DE354883T1 (en)
DK (1) DK349989A (en)
ES (1) ES2015840A4 (en)
GR (1) GR900300105T1 (en)
IT (1) IT1225682B (en)
PL (1) PL161088B1 (en)
PT (1) PT91222A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1445092A (en) * 1991-03-18 1992-10-21 Nordson Corporation Method for pumping liquid by multiple plunger pump and pump therefor
US6935013B1 (en) 2000-11-10 2005-08-30 Hitachi Global Storage Technologies Netherlands B.V. Apparatus and method for precise lapping of recessed and protruding elements in a workpiece
US6568925B2 (en) 2001-03-28 2003-05-27 Eric Gunderson Abrasive liquid pump apparatus and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB597106A (en) * 1945-08-09 1948-01-19 Norman Emile Mcclelland Improvements in or relating to diaphragm pumps
CH345800A (en) * 1955-09-22 1960-04-15 Reiners Walter Dr Ing Diaphragm pump for non-lubricating and chemically aggressive liquids
GB875509A (en) * 1957-11-27 1961-08-23 Milton Roy Co Improvements in hydraulically actuated pumps
GB887774A (en) * 1959-06-26 1962-01-24 Charles Wilfred Simpson Improvements in and relating to diaphragm pumps

Also Published As

Publication number Publication date
PT91222A (en) 1990-03-08
DK349989A (en) 1990-02-11
IT1225682B (en) 1990-11-22
DK349989D0 (en) 1989-07-14
ES2015840A4 (en) 1990-09-16
EP0354883A1 (en) 1990-02-14
IT8812536A0 (en) 1988-08-10
JPH0275780A (en) 1990-03-15
GR900300105T1 (en) 1991-09-27
PL161088B1 (en) 1993-05-31

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