EP1884663A1 - Pompe péristaltique - Google Patents

Pompe péristaltique Download PDF

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Publication number
EP1884663A1
EP1884663A1 EP07112809A EP07112809A EP1884663A1 EP 1884663 A1 EP1884663 A1 EP 1884663A1 EP 07112809 A EP07112809 A EP 07112809A EP 07112809 A EP07112809 A EP 07112809A EP 1884663 A1 EP1884663 A1 EP 1884663A1
Authority
EP
European Patent Office
Prior art keywords
hose
medium
pressing
cavity
pump
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.)
Withdrawn
Application number
EP07112809A
Other languages
German (de)
English (en)
Inventor
Dinant Hendrik Schippers
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.)
Bredel Hose Pumps BV
Original Assignee
Bredel Hose Pumps BV
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 Bredel Hose Pumps BV filed Critical Bredel Hose Pumps BV
Publication of EP1884663A1 publication Critical patent/EP1884663A1/fr
Withdrawn legal-status Critical Current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
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • 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
    • F04B43/0009—Special features
    • F04B43/0081—Special features systems, control, safety measures

Definitions

  • the invention relates to a peristaltic pump for circulating a medium such as a liquid, a gas, a slurry, a granulate or a combination of two or more thereof, which pump comprises:
  • the pump operates as closing valve such that the delivery side and the suction side are separated from each other.
  • hose in a peristaltic pump or hose pump in fact display a mutual contradiction.
  • a hose with the smallest possible radial stiffness is desired, whereby the smallest possible compression force, drive torque, stresses in the hose, development of heat resulting from hysteresis and friction between a pressing element and the hose will occur.
  • a certain degree of stiffness of the hose is desired with a view to restoring the initial, for instance round, form of the hose. This does after all define the suction capacity.
  • the invention proposes a peristaltic pump of the type stated in the preamble which has the feature that a cavity is defined in the pump housing, the pressing surface of which cavity forms a boundary and in which cavity the hose and the pressing means with the pressing elements are accommodated; and the cavity is hermetically sealed and filled with a filling medium.
  • the pump has the special feature that the pump is of the linear type.
  • Linear is understood to mean a pump wherein the pressing elements follow an at least more or less linear path along the pressing surface, which pressing surface likewise has an at least more or less linear form.
  • a peristaltic pump is further known for circulating a medium, which pump is of the rotating type and comprises:
  • hose pump This pump is particularly important in the context of the invention because such a pump, generally referred to as "hose pump”, is very common and is highly suitable for adaptation in terms of the teaching of the present invention.
  • this said rotating peristaltic pump has the feature that a cavity is defined in the pump housing, the pressing surface of which cavity forms a boundary and in which cavity the hose and the rotor are accommodated; and the cavity is hermetically sealed and filled with a filling medium.
  • the starting point for the above described invention for both the linear and the rotating pump, is that the hose has its initial, for instance round form along a significant part of its active length except at the position where a pressing element compresses and thus locally closes the hose.
  • the cavity in the pump housing is completely filled with a filling medium, some further aspects and possible options of which will be discussed hereinbelow.
  • the pressing means When the pressing means are displaced, the positions of the pressing elements will be displaced along the hose.
  • the hose will be restored to its original form as a consequence of the incompressibility of this filling medium and the constant volume thereof.
  • a change in volume at the one location must be compensated by an equal change in volume at another location. This could be otherwise expressed with the formulation that the hose is as it were hydraulically energized in this way.
  • the bringing of the hose into a round form could for instance be realized during assemby, wherein the pump has not yet been filled with liquid. Via the inlet or outlet the hose could be temporarily brought to pressure by means of a gas or liquid. After filling of the cavity in the pump housing with liquid, such as a hydraulic oil, and subsequent venting, the medium pressure can be removed from the hose. As a result of the presence of the in this case incompressible filling medium the hose retains its round form.
  • the pump according to the invention can have the special feature that the filling medium is a liquid.
  • Very simple and inexpensive is an embodiment in which the liquid is water.
  • a hydraulic oil can also be applied.
  • the pump has the special feature that the filling medium is a gas.
  • the filling medium being a combination of a liquid and a gas.
  • the pump has the special feature that a chosen pressure prevails in the gas.
  • the pump comprises adjusting means for adjusting the pressure in the filling medium present in the cavity.
  • this latter variant can have the special feature that the adjusting means comprise a cylinder in which a piston is sealingly displaceable and fixable at a position to be selected, wherein a space bounded by the cylinder and the piston connects to the cavity in the pump housing.
  • the pump according to the invention can comprise: pressure difference means for creating a chosen positive pressure difference between the interior of the hose and the medium present in the cavity such that the hose has a tendency to expand.
  • pressure difference means can be implemented as said adjusting means, but alternatively by mounting the hose under internal pressure. The positive pressure difference is after all the decisive factor.
  • FIG. 1 shows a cross-section through a peristaltic pump 1 of the rotating type according to the invention.
  • Pump 1 comprises: a pump housing 2; a pressing surface 3 present in this pump housing 2 and having the general form of a half-cylinder extending through 180° and having a central axis 5; and an elastically deformable hose 4 which has a medium inlet 6 and a medium outlet 7; a rotor 8 with two pressing cams 9, 10 which are placed diametrically to each other, i.e.
  • the indrawn medium is indicated with an arrow 13.
  • the medium discharged under pressure is indicated with an arrow 14.
  • Pump housing 2 comprises a cavity 15 wholly filled with filling medium 16, in this case a hydraulic oil.
  • Cavity 15 is hermetically sealed for this purpose by means of provisions to be described hereinbelow.
  • FIG. 2 shows a pump 21 which differs in one respect from pump 1 according to figure 1, i.e. pump housing 22 has a connection 24 to which connects a conduit 25 which connects in turn to a cavity 28 which is bounded by a cylinder 26 and a piston 27 which is reciprocally displaceable as according to an arrow 30 in sealing manner by means of a sealing ring 29.
  • pump housing 22 has a connection 24 to which connects a conduit 25 which connects in turn to a cavity 28 which is bounded by a cylinder 26 and a piston 27 which is reciprocally displaceable as according to an arrow 30 in sealing manner by means of a sealing ring 29.
  • the hydraulic oil 26 is incompressible, a displacement of the piston to the left, so with a reduction in the volume of space 28, will exert a pressure on hose 4 such that this will tend to contract and begin to decrease in volume.
  • a displacement of piston 27 to the right will increase the volume of space 28, whereby hose 4 will tend to expand. In the description introduction has
  • Hose 4 is mounted in hermetically sealing manner relative to the pump housing on the side of both medium inlet 6 and medium outlet 7 of this hose.
  • hermetic seal relates only to a practical example and that many other structures can be applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP07112809A 2006-07-28 2007-07-19 Pompe péristaltique Withdrawn EP1884663A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2000167A NL2000167C2 (nl) 2006-07-28 2006-07-28 Peristaltische pomp.

Publications (1)

Publication Number Publication Date
EP1884663A1 true EP1884663A1 (fr) 2008-02-06

Family

ID=37888150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07112809A Withdrawn EP1884663A1 (fr) 2006-07-28 2007-07-19 Pompe péristaltique

Country Status (5)

Country Link
US (1) US20080025854A1 (fr)
EP (1) EP1884663A1 (fr)
JP (1) JP2008032017A (fr)
NL (1) NL2000167C2 (fr)
ZA (1) ZA200706199B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113586407A (zh) * 2021-09-16 2021-11-02 布莱迪(杭州)科学仪器有限公司 一种可独立控制的双通道集成蠕动泵
DE102020131083A1 (de) 2020-11-24 2022-05-25 ventUP GmbH Schlauch-Pumpe
DK181469B1 (en) * 2021-08-23 2024-02-20 Lsm Pumper Aps Linear peristaltic pump

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2495937A (en) * 2011-10-25 2013-05-01 Watson Marlow Ltd Peristaltic pump head with auxiliary leakage chamber
GB2495935A (en) 2011-10-25 2013-05-01 Watson Marlow Ltd Peristaltic pump with tube end fitting
CN102513020B (zh) * 2011-12-02 2014-04-02 上海科勒电子科技有限公司 气液混合的液体供送装置
JP2014010078A (ja) * 2012-06-29 2014-01-20 Jgc Corp 固液混合体の移送方法及び固液混合体の移送装置
DE102013106170A1 (de) * 2013-06-13 2014-12-31 Emitec Gesellschaft Für Emissionstechnologie Mbh Pumpe zur Förderung einer Flüssigkeit
GB2521226A (en) * 2013-12-16 2015-06-17 Watson Marlow Bredel B V An end fitting for a tube housed by a cavity and a method of installing a tube in a cavity
DE102017104395A1 (de) 2017-03-02 2018-09-06 Qonqave Gmbh Pumpenvorrichtung zu einer Förderung zumindest eines Fördermittels
CN107503923A (zh) * 2017-09-22 2017-12-22 保定准择恒流泵制造有限公司 蠕动泵头及蠕动泵
CN113062852B (zh) * 2021-05-02 2024-03-29 石河子大学 一种可调节挤压辊式软管泵
CN115628206B (zh) * 2022-09-27 2023-07-25 深圳华星恒泰泵阀有限公司 一种便于管道限位的多组连接型蠕动泵

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB713239A (en) * 1952-08-20 1954-08-04 Ames Crosta Mills & Company Lt Improvements in and relating to flexible tube pumps
DE3703124A1 (de) * 1987-02-03 1988-08-11 Manfred Streicher Schlauchpumpe
WO1991016542A1 (fr) * 1990-04-12 1991-10-31 Bredel Exploitatie B.V. Pompe peristaltique comportant des elements de pression retractables
DE4303319A1 (de) * 1993-02-05 1994-08-11 Putzmeister Maschf Vakuum-Pumpeinrichtung
US6171082B1 (en) * 1997-01-22 2001-01-09 Medtronic, Inc. Peristaltic pumping mechanism

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428619A (en) * 1944-11-06 1947-10-07 Douglas Norvel Rotary pump or the like
US3103178A (en) * 1961-08-11 1963-09-10 Ronald E Thompson High-capacity pump of tube-compression type
US4482347A (en) * 1982-08-12 1984-11-13 American Hospital Supply Corporation Peristaltic fluid-pumping apparatus
DE3320091A1 (de) * 1983-06-03 1984-12-06 Streicher, Irmgard, 7141 Beilstein Schlauchpumpe
US4522571A (en) * 1984-03-05 1985-06-11 Little Robert K Peristaltic pump
US4909710A (en) * 1989-10-23 1990-03-20 Fisher Scientific Company Linear peristaltic pump
US5217355A (en) * 1991-08-05 1993-06-08 Imed Corporation Two-cycle peristaltic pump with occlusion detector
DE9205733U1 (de) * 1992-04-29 1993-09-02 Magnus Gmbh, 42859 Remscheid Schlauchpumpe
DE4214917A1 (de) * 1992-05-11 1993-11-18 Allweiler Ag Schlauchpumpe
WO1994004257A1 (fr) * 1992-08-11 1994-03-03 American Cyanamid Company Appareil pour combiner des liquides
GB9815394D0 (en) * 1998-07-15 1998-09-16 Bredel Hose Pumps B V Peristalic pumps
US20010016706A1 (en) * 1999-08-31 2001-08-23 Kurt D. Leukanech Peristaltic pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB713239A (en) * 1952-08-20 1954-08-04 Ames Crosta Mills & Company Lt Improvements in and relating to flexible tube pumps
DE3703124A1 (de) * 1987-02-03 1988-08-11 Manfred Streicher Schlauchpumpe
WO1991016542A1 (fr) * 1990-04-12 1991-10-31 Bredel Exploitatie B.V. Pompe peristaltique comportant des elements de pression retractables
DE4303319A1 (de) * 1993-02-05 1994-08-11 Putzmeister Maschf Vakuum-Pumpeinrichtung
US6171082B1 (en) * 1997-01-22 2001-01-09 Medtronic, Inc. Peristaltic pumping mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020131083A1 (de) 2020-11-24 2022-05-25 ventUP GmbH Schlauch-Pumpe
DK181469B1 (en) * 2021-08-23 2024-02-20 Lsm Pumper Aps Linear peristaltic pump
CN113586407A (zh) * 2021-09-16 2021-11-02 布莱迪(杭州)科学仪器有限公司 一种可独立控制的双通道集成蠕动泵
CN113586407B (zh) * 2021-09-16 2023-09-01 布莱迪(杭州)科学仪器有限公司 一种可独立控制的双通道集成蠕动泵

Also Published As

Publication number Publication date
US20080025854A1 (en) 2008-01-31
ZA200706199B (en) 2008-06-25
JP2008032017A (ja) 2008-02-14
NL2000167C2 (nl) 2008-01-29

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