WO2009100858A1 - Dispositif pour concentrer un liquide au moyen d’une pompe à pistons différentiels - Google Patents

Dispositif pour concentrer un liquide au moyen d’une pompe à pistons différentiels Download PDF

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Publication number
WO2009100858A1
WO2009100858A1 PCT/EP2009/000833 EP2009000833W WO2009100858A1 WO 2009100858 A1 WO2009100858 A1 WO 2009100858A1 EP 2009000833 W EP2009000833 W EP 2009000833W WO 2009100858 A1 WO2009100858 A1 WO 2009100858A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston pump
drive shaft
control
radial piston
eccentric
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.)
Ceased
Application number
PCT/EP2009/000833
Other languages
German (de)
English (en)
Inventor
Stephan Quinkert
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.)
Pleiger Maschinenbau GmbH and Co KG
Original Assignee
Pleiger Maschinenbau GmbH and Co KG
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 Pleiger Maschinenbau GmbH and Co KG filed Critical Pleiger Maschinenbau GmbH and Co KG
Publication of WO2009100858A1 publication Critical patent/WO2009100858A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F04B5/00—Machines or pumps with differential-surface pistons
    • F04B5/02—Machines or pumps with differential-surface pistons with double-acting pistons
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0452—Distribution members, e.g. valves
    • F04B1/0465—Distribution members, e.g. valves plate-like
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
    • F04B1/0531—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with cam-actuated distribution members
    • 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
    • F04B5/00—Machines or pumps with differential-surface pistons
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0003—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber
    • F04B7/0007—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having a rotating movement
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
    • F04B7/0023—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having a rotating movement
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0042—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
    • F04B7/0046—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for rotating distribution members
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0057—Mechanical driving means therefor, e.g. cams
    • F04B7/0061—Mechanical driving means therefor, e.g. cams for a rotating member
    • F04B7/0065—Mechanical driving means therefor, e.g. cams for a rotating member being mounted on the main shaft
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
    • F04B9/107—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting liquid motor, e.g. actuated in the other direction by gravity or a spring

Definitions

  • the invention relates to a device for concentrating a liquid according to the preamble of claim 1.
  • a device of this type is known from EP 1 752 662, wherein a liquid, in particular seawater, is pumped by a differential piston pump through a concentrator.
  • the concentrate under residual pressure acts on the differential piston assisting during the delivery stroke, wherein the differential piston is driven by the eccentric on the drive shaft of a radial piston pump.
  • a further eccentric for a linearly guided valve control member is provided which is guided with a pull and pressure coupling directly on the eccentric and actuates an inlet and outlet valve assembly.
  • the valve control member is moved in a housing back and forth and adjusted against spring force. As a result, disturbing forces occur, which must be overcome in the control. Also, this design is susceptible to wear.
  • the invention has for its object to improve the control of the device.
  • control device is formed by at least one rotating valve element which is connected to the drive shaft of the radial piston pump. Due to the rotational movement of the valve element, such as a control disk, a low-wear control without significant energy consumption is possible.
  • Fig. 1 shows schematically the structure of the radial piston pump with two disc controls
  • Fig. 2 is a sectional view through an embodiment with two eccentrics and a
  • FIG. 3 shows schematically an end view of the two eccentrics on the drive shaft according to FIG. 2.
  • Fig. 1 shows schematically a radial piston pump with an eccentric 1 on a z. B. driven by an electric motor, not shown drive shaft 2, wherein on the circumference of the eccentric 1 differential piston 3 are guided, which are reciprocally in each case in a cylinder 4 and forth.
  • Over the circumference of the eccentric 1 are a plurality of cylinders 4, z. B. five, each with a differential piston 3 distributed, as is known per se in radial piston pumps.
  • each disk control 7 and 8 are arranged, which form a control valve means by means of the two fluids Fl and F2 in the cylinder 4 and be removed from these.
  • Each disc control consists of a fixed distributor disc 7a or 8a and a rotating with the drive shaft 2 control disc 7b and 8b.
  • valve holes 7c and 8c are formed on the circumference, which are surrounded by an annular groove 9.
  • FIG. 1 opens on the circumference of the control disc 7b, a line 10, through which the fluid Fl (eg seawater) is supplied, said line 10 forms a suction line.
  • the side opposite the distributor disc 7a side of the control disc 7b opens a line 11 through which the pressurized fluid Fl, z. B. seawater, with a pressure z. B. over 60 bar is pumped to an osmotic membrane, not shown.
  • channels and pockets are formed in the axial direction, through which both the standing in the suction medium Fl from the channel 10 via the annular groove 9 to the line 5 is performed, as well as the pressurized fluid Fl from the line 5 is discharged via the line 11.
  • a channel 12 for the supply of the fluid F2 (concentrate) is formed, which is in communication with the annular groove 9 and via the radial bores 8c the concentrate (or other medium under pressure) on the eccentric 1 side facing the differential piston 3 supplies, which may be less than 60 bar, for example, under a residual pressure.
  • control disc 8b For discharging the concentrate F2 via the line 6, not shown, extending in the axial direction of channels and pockets are formed in the control disc 8b, which connect in dependence on the rotational movement of the control disc 8b with the line 13, through which the non-pressurized concentrate is discharged.
  • control discs 7, 8 are arranged on the axis of the drive shaft 2. It is also possible to arrange the control discs with their axis offset parallel to the longitudinal axis of the drive shaft 2, wherein the rotating valve disc 7b and 8b z. B. can be connected via a sprocket with the drive shaft 2 so that the rotation of the drive shaft is transmitted without slip on the valve disc.
  • disk controls 7 and 8 arranged separately in FIG. 1, it is also possible to provide a disk control 70 which operates with a single control disk and which can be positioned, for example, at the free end of the drive shaft 2, as FIG. 2 shows.
  • FIG. 2 On the one hand to increase the capacity of the radial piston pump and on the other hand to achieve low-vibration operation by mass balance are in the embodiment of FIG. 2 on the drive shaft 2 side by side eccentric 1 and 1.1 arranged on the circumference of each example, five differential pistons 3 are arranged with cylinder 4 , In this design with two eccentrics 1 and 1.1, these are arranged with their eccentricity offset by 180 ° to each other on the drive shaft 2, as shown in FIG. 3 schematically shows to reduce vibrations that can occur in a radial piston pump with only one eccentric, in particular when the radial piston pump operates at a speed of about 1,500 rpm in accordance with the rotational speed of the driving electric motor.
  • the total of ten differential pistons 3 are controlled by only one disk control 70, which is connected to a stationary disk 70a and the rotating control disk 70b connected to the drive shaft 2 at the free end of the drive shaft 2 in a control housing 71 is arranged.
  • the same reference numerals are used as in Fig.l.
  • the disk control 70 of Figure 2 and thus all affected parts, such as the control housing 71, the control disk 70b and the distribution disc 70a have a dual function. They supply both the cylinder facing away from the eccentric and the eccentric facing cylinder chambers of the cylinder. 4
  • the leadership of the piston shoe of the differential piston 3 on the eccentric circumference can be formed in various ways.
  • a roller 30 can be rotatably mounted, which rolls on the eccentric circumference.
  • a guide ring 40 is guided around the rollers 30 to the individual differential piston 3 and holds them in contact with the eccentric circumference.
  • the radial piston pump described is not only suitable for concentrating seawater or in the juice production for concentration, but can also be used in other areas in which to support the delivery of a fluid FL another pressurized fluid F2 is available, which on the opposite side of the delivery Side of the differential piston 3 is supplied in order to achieve energy savings in the pumping operation.
  • a control disk has been described as a valve element rotating with the drive shaft, which cooperates with a distributor disk. It is also possible to form a corresponding arrangement of bores and lines in the housing or in a housing part of the radial piston pump instead of the distributor disc, so that the control disc cooperates with these bores and lines in the housing.
  • the holes, lines and pockets required for the control of the fluid distribution are arranged partly on the end faces and partly on the circumference of the control disk. It is also possible to design the control disk 70b such that all bores, lines and pockets on the circumference of the control disk open or are arranged, resulting in a roller-shaped valve element.

Landscapes

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

Abstract

L'invention concerne un dispositif pour concentrer un liquide pompé par une pompe à pistons différentiels à travers une unité de concentration, sachant que ce liquide, en tant que concentré sous pression résiduelle, agit directement avec un effet d'assistance sur le ou les pistons différentiels lors de la course de refoulement. La pompe à pistons différentiels est réalisée sous forme de pompe à piston radiaux, et les pistons différentiels sont entraînés par un excentrique sur un arbre d'entraînement de la pompe à pistons radiaux, qui actionne un dispositif de soupape de commande pour apporter et évacuer les fluides. Le dispositif de soupape de commande est réalisé sous la forme d'au moins un élément de soupape rotatif (7b, 8b; 70b), qui est relié à l'arbre d'entraînement (2).
PCT/EP2009/000833 2008-02-15 2009-02-06 Dispositif pour concentrer un liquide au moyen d’une pompe à pistons différentiels Ceased WO2009100858A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008009195.2 2008-02-15
DE102008009195A DE102008009195A1 (de) 2008-02-15 2008-02-15 Vorrichtung zum Aufkonzentrieren einer Flüssigkeit mittels einer Differentialkolbenpumpe

Publications (1)

Publication Number Publication Date
WO2009100858A1 true WO2009100858A1 (fr) 2009-08-20

Family

ID=40578719

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/000833 Ceased WO2009100858A1 (fr) 2008-02-15 2009-02-06 Dispositif pour concentrer un liquide au moyen d’une pompe à pistons différentiels

Country Status (2)

Country Link
DE (1) DE102008009195A1 (fr)
WO (1) WO2009100858A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110578684A (zh) * 2019-08-23 2019-12-17 浙江大学 一种径向驻塞泵/马达及其配流结构
CN110700991A (zh) * 2018-07-10 2020-01-17 江苏可奈力机械制造有限公司 一种新型径向柱塞马达机构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012210430A1 (de) * 2012-06-20 2013-12-24 Zf Friedrichshafen Ag Radialkolbenmaschine
DE102015014835A1 (de) * 2015-11-12 2017-05-18 Oberzom S.A. Radial-Kolben-Pumpe mit Zweikreis-Hydromotor
CN111271237A (zh) * 2020-03-06 2020-06-12 邵玉刚 一种水泵

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049391A (en) * 1934-04-28 1936-07-28 Gee Pump Company Ltd Pump
DE2444740A1 (de) * 1974-09-19 1976-04-01 Tuchenhagen Otto Vorrichtung fuer die steuerung des konzentratstromes in energierueckgewinnungsaggregaten zum einsatz in die nach der umgekehrten osmose arbeitenden trennanlagen
DE4327849A1 (de) * 1993-08-19 1995-03-02 Wap Reinigungssysteme Mehrkreis-Ringpumpe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1470426A (en) * 1922-10-11 1923-10-09 Joseph Harrison Double-acting reciprocating pump
DE502005002928D1 (de) 2005-08-09 2008-04-03 Seneca S A Vorrichtung zum Aufkonzentrieren einer Flüssigkeit und Differentialkolbenpumpe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049391A (en) * 1934-04-28 1936-07-28 Gee Pump Company Ltd Pump
DE2444740A1 (de) * 1974-09-19 1976-04-01 Tuchenhagen Otto Vorrichtung fuer die steuerung des konzentratstromes in energierueckgewinnungsaggregaten zum einsatz in die nach der umgekehrten osmose arbeitenden trennanlagen
DE4327849A1 (de) * 1993-08-19 1995-03-02 Wap Reinigungssysteme Mehrkreis-Ringpumpe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110700991A (zh) * 2018-07-10 2020-01-17 江苏可奈力机械制造有限公司 一种新型径向柱塞马达机构
CN110578684A (zh) * 2019-08-23 2019-12-17 浙江大学 一种径向驻塞泵/马达及其配流结构
CN110578684B (zh) * 2019-08-23 2020-07-24 浙江大学 一种径向柱塞泵/马达及其配流结构

Also Published As

Publication number Publication date
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