WO1994029033A1 - Dispositif de pompage hydraulique - Google Patents

Dispositif de pompage hydraulique Download PDF

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Publication number
WO1994029033A1
WO1994029033A1 PCT/DE1994/000661 DE9400661W WO9429033A1 WO 1994029033 A1 WO1994029033 A1 WO 1994029033A1 DE 9400661 W DE9400661 W DE 9400661W WO 9429033 A1 WO9429033 A1 WO 9429033A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump device
pressure
line
hydraulic
working
Prior art date
Application number
PCT/DE1994/000661
Other languages
German (de)
English (en)
Inventor
Hans F. Grimm
Original Assignee
Idh Maschinen Und Anlagen Handelsgesellschaft Mbh
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 Idh Maschinen Und Anlagen Handelsgesellschaft Mbh filed Critical Idh Maschinen Und Anlagen Handelsgesellschaft Mbh
Priority to AU69678/94A priority Critical patent/AU6967894A/en
Publication of WO1994029033A1 publication Critical patent/WO1994029033A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0409—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material the pumps being driven by a hydraulic or a pneumatic fluid
    • 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
    • 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
    • F04B9/109—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 plural pumping chambers
    • F04B9/111—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 plural pumping chambers with two mechanically connected pumping members
    • F04B9/113—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 plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting liquid motor

Definitions

  • the invention relates to a hydraulic pump device, in particular for liquids mixed with abrasive and / or aggressive solids, which supplies a consumer with a medium.
  • the invention is therefore based on the object of providing a pump device of the type mentioned at the outset which can be operated without the disadvantages mentioned and which ensures long service lives.
  • this object is achieved by a pressure unit which only indirectly promotes the liquid - or another carrier medium which is loaded with solids.
  • the invention is therefore based on the basic idea that the solid, abrasive and / or aggressive liquid does not even come into contact with the piston, the cylinder tube seals and packings etc. and thus enables a largely wear-free pump device.
  • the liquid flow and a hydraulic circuit acting on the pressure unit are therefore advantageously separated from one another.
  • the hydraulic circuit is used solely to drive the pump, the pressure unit preferably having at least one displacement housing which is connected to a filling station. When the printing unit is in operation, the pressure medium displaced from the filled displacement housing can then be used to convey a separately stored subset of the solids-laden liquid to the consumer.
  • a preferred embodiment of the invention therefore provides that the displacement housing is connected to a pump chamber of a media separator, which is separated from a pressure chamber by an elastic, walkable partition wall arranged sealingly within the media separator housing.
  • the pressure chamber is connected on the one hand to a liquid supply line and on the other hand to a consumer line via a suction and pressure line having a suction and an outlet valve, the pressure unit can be operated reversibly in the sense of a hydraulic Bowden cable and the solids-laden liquid can be pumped into the pressure chamber or suction from this, depending on the direction of action of the pressure unit, which preferably consists of two counter-acting plungers, which are reversibly immersed with their piston rods in one and the other of the filled-in displacement housings.
  • the displacement housings enclose between them a sealed path cylinder, which is separated by a working piston connected to the piston rods into a first and a second working space.
  • the liquid mixed with abrasive and / or aggressive solids can be pumped into the pressure chamber of the media separator or sucked out of it, and in the case of duplicate pump and pressure chambers as well as associated outlet and suction valves, the pumped a liquid pressure chamber and simultaneously sucked liquid from the other pressure chamber, the On the outlet side, outlet valves open into a common pressure or consumer line.
  • a membrane pressure accumulator which is known per se, can advantageously be used as the component known as the media separator, which provides the pump and the pressure chamber, in order to cover a peak demand that sometimes occurs briefly in hydraulic systems with different levels of oil consumption.
  • the working piston be formed in one piece with the two piston rods, so that in this case the piston rods act as plunger ends.
  • each working area is connected to the hydraulic circuit via a line connection.
  • the control is carried out, for example, by proportional valves with a ramp, black-and-white valves with reversible actuation that can be influenced or with a high-pressure pump that can be regulated in the flow and reversible in the conveying direction. All ways, i.e. fully damped left and right of the working piston, i.e. be extended in the impact-free reversing mode, which makes it possible to achieve the desired displacement, preferably 0.5 l per stroke, in which the hydraulic fluid of the pressure unit separates the media separator which receives the solids-laden fluid.
  • initiators can be arranged in the direction cylinder, which interact with an encoder of the working piston, which enables very precise stroke distances within the scope of an NC control of the printing unit.
  • the working piston can consequently alternately be pressurized or relieved of pressure by the hydraulic fluid under pressure by means of an external reversing device.
  • a hydraulic accumulator is arranged in the consumer line, it can serve as a pulsation damper.
  • the hydraulic one to be executed as a mobile station Pump device can be supplemented in the manner of a modular system by several interconnected pressure units. This makes it possible to vary the performance of the hydraulic pump device accordingly.
  • the pump device is operated at constant pressure - this can be in the range from 15 to 130 bar - and can operate with a pressure ratio of, for example, 1: 1; in principle, all technically feasible high pressures can be realized.
  • the effective cross section of the annular working spaces of the cylinder can be the same, larger or smaller than that of the plunger or plungers.
  • spray devices are connected to the consumer line.
  • This can be, for example, a plurality of spray guns connected to a distributor of the consumer line or it can be a nozzle bar, the hydraulic pump device advantageously being able to be used to apply paint to an object.
  • acoustic or soundproofing panels of commercial dimensions are to be provided with a color coat, an oscillating nozzle bar with 3 to 12 nozzles, with which 1.5 1 color per minute and nozzle can be applied, results in an optimal coverage.
  • Figure 1 is a schematic representation of the overall view of a hydraulic pump device according to the invention.
  • FIG. 2 shows, as a detail of the pump device according to FIG. 1, the pressure unit having a working piston with two piston rods in a directional cylinder, shown in cross section;
  • Figure 3 is a schematic overall view of the use of the pump device according to the invention using the example of equipment to be sprayed acoustic panels.
  • a pump device 1 consists of a hydraulic unit 2, a pressure unit 3 and two media separators 4, 5, which are connected to a consumer line 6.
  • the printing unit 3 is designed as a travel cylinder 7, which has a displacement housing 8, 9 on each side.
  • a plunger 10 Arranged in the direction cylinder 7 is a plunger 10, which consists of a working piston 13 formed in one piece with two piston rods 11, 12, which plunges the interior of the direction cylinder 10 into a first or second pressure chamber 14a or respectively located in front of the piston surfaces of the working piston 13. 14b (see FIG. 2) divided.
  • the displacement housings 8 and 9, which enclose the directional cylinder 13 and are divided by partition walls 15, accommodate the piston rods 11, 12 arranged with seals 16 in the partition walls 15.
  • hydraulic lines 18, 19 coming from the hydraulic unit 2 are connected to the pressure chambers 14a, 14b located in front of and behind the working pistons 13.
  • initiators 20, 21, shown schematically in FIG. 2 are arranged in the direction cylinder 7, which cooperate with a sensor 22 provided on the working piston 13 and support the full extension of the stroke paths.
  • the displacement housings 8, 9 of the plunger 10 are connected via lines 23, 24 on the one hand to a pump chamber 25 of the media separators 4, 5 and on the other hand via interposed shut-off valves 26, 27 to a common line 29 leading to an oil reservoir or a filling station 28.
  • the pump chamber 25 of the media separators 4, 5 is separated from a pressure chamber 31 by an elastic, walkable partition wall 30 (cf. FIG. 1) which is arranged sealingly within the media separator housing.
  • the pressure chambers 31 are connected on the one hand to a liquid supply line 36 and on the other hand to the consumer line 6 via a first and a second suction and pressure line 34 and 35, each having a suction valve 32 and an outlet valve 33, since the Outlet valves 33 open together on the outlet side.
  • the displacer housings 8, 9 are filled with hydraulic fluid fed from the filling station 28.
  • hydraulic fluid is fed into the working space 14b from the hydraulic unit 2 via the hydraulic line 19;
  • the working piston 13 then moves to the left, the hydraulic fluid flowing from the working space 14a located in front of the piston 13 in the closed circuit via the hydraulic line 18 back into the hydraulic unit 2.
  • the piston rod 11, which dips into the displacer housing 9, displaces a quantity of hydraulic fluid corresponding to its displacement volume via the line 23 into the pump chamber 25 of the media separator 4 on the left in FIG.
  • the displacement cylinder 7 is provided with leakage oil connections 53 (cf. FIG. 2).
  • the hydraulic pump device 1 which comprises the media high-pressure pump consisting essentially of the printing unit 3 and the media separators 4, 5
  • the required amount of paint is then drawn off from the storage tank 41 via the feed line 36 and the Consumers 45 promoted continuously.
  • This consists of a nozzle bar 47 having a plurality of spray nozzles 46, which is arranged in an oscillating manner at the end of the consumer line 6 and enables the paint to be sprayed onto the acoustic panels 37 transported by a cable conveyor system 48 with very precise color metering.
  • the pump device 1 is operated taking into account the dynamic pressure building up in the consumer line 6 above the measuring point 49 there; a hydraulic accumulator 50 arranged in the consumer line 6 serves as a pulsation damper.
  • the system is provided at various positions with rinsing water connections 51 and drain lines 52 to a sewage treatment plant.

Landscapes

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

Abstract

Un dispositif de pompage hydraulique, notamment pour liquides mélangés à des matières solides abrasives et/ou agressives, alimente un consommateur en fluide. Une unité de compression (3) qui refoule le liquide uniquement de manière indirecte permet un fonctionnement sans usure et le prolongement de la vie utile du dispositif.
PCT/DE1994/000661 1993-06-15 1994-06-15 Dispositif de pompage hydraulique WO1994029033A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU69678/94A AU6967894A (en) 1993-06-15 1994-06-15 Hydraulic pumping device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4319803.1 1993-06-15
DE4319803A DE4319803A1 (de) 1993-06-15 1993-06-15 Hydraulische Pumpeneinrichtung

Publications (1)

Publication Number Publication Date
WO1994029033A1 true WO1994029033A1 (fr) 1994-12-22

Family

ID=6490379

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1994/000661 WO1994029033A1 (fr) 1993-06-15 1994-06-15 Dispositif de pompage hydraulique

Country Status (3)

Country Link
AU (1) AU6967894A (fr)
DE (1) DE4319803A1 (fr)
WO (1) WO1994029033A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050142012A1 (en) * 2003-11-26 2005-06-30 Elgin Sweeper Rodder pump
NO20076209L (no) * 2007-12-03 2009-06-04 Eureka Gruppen As Hoytrykkspumpe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1211846A (fr) * 1958-10-18 1960-03-18 Pompe hydraulique pour pulvérisateurs agricoles
FR1350149A (fr) * 1962-12-15 1964-01-24 Pompage de fluides
US3207080A (en) * 1962-11-05 1965-09-21 Panther Pumps & Equipment Co Balanced pressure pump
FR2359632A1 (fr) * 1976-07-28 1978-02-24 Dso Stroitelna Technika Installation pour le transport et le depot de materiaux de badigeonnage
GB2003975A (en) * 1977-09-12 1979-03-21 Wilms Gmbh Diaphragm pump
US4416588A (en) * 1980-07-18 1983-11-22 Wagner Spray Tech Corporation Air compressor for paint pumps
EP0247459A1 (fr) * 1986-05-19 1987-12-02 Hoya Takeshi Dispositif pour alimentation de pression

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH405583A (de) * 1962-04-24 1966-01-15 Burckhardt Ag Maschf Selbsttätige Steuerung für hydraulisch getriebene Membrankompressoren für hohe Drücke
US3740169A (en) * 1970-10-07 1973-06-19 Nat Forge Co High pressure generating device
US4119113A (en) * 1975-02-06 1978-10-10 Extracorporeal Medical Systems, Inc. Double-action proportioning pump
US4789313A (en) * 1987-04-08 1988-12-06 Flowdrill Corporation Apparatus for and method of pumping output fluids such as abrasive liquids

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1211846A (fr) * 1958-10-18 1960-03-18 Pompe hydraulique pour pulvérisateurs agricoles
US3207080A (en) * 1962-11-05 1965-09-21 Panther Pumps & Equipment Co Balanced pressure pump
FR1350149A (fr) * 1962-12-15 1964-01-24 Pompage de fluides
FR2359632A1 (fr) * 1976-07-28 1978-02-24 Dso Stroitelna Technika Installation pour le transport et le depot de materiaux de badigeonnage
GB2003975A (en) * 1977-09-12 1979-03-21 Wilms Gmbh Diaphragm pump
US4416588A (en) * 1980-07-18 1983-11-22 Wagner Spray Tech Corporation Air compressor for paint pumps
EP0247459A1 (fr) * 1986-05-19 1987-12-02 Hoya Takeshi Dispositif pour alimentation de pression

Also Published As

Publication number Publication date
AU6967894A (en) 1995-01-03
DE4319803A1 (de) 1994-12-22

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