EP0478944A1 - Dispositif pour doser et mélanger deux composants fluides - Google Patents

Dispositif pour doser et mélanger deux composants fluides Download PDF

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Publication number
EP0478944A1
EP0478944A1 EP91114189A EP91114189A EP0478944A1 EP 0478944 A1 EP0478944 A1 EP 0478944A1 EP 91114189 A EP91114189 A EP 91114189A EP 91114189 A EP91114189 A EP 91114189A EP 0478944 A1 EP0478944 A1 EP 0478944A1
Authority
EP
European Patent Office
Prior art keywords
metering
metering pump
component
pump
valve
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.)
Granted
Application number
EP91114189A
Other languages
German (de)
English (en)
Other versions
EP0478944B1 (fr
Inventor
Otto Schiemann
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.)
Mgv-Moest-Spritzgerate Produktions- und Vertriebs-Gmbh
Original Assignee
Mgv-Moest-Spritzgerate Produktions- und Vertriebs-Gmbh
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
Priority claimed from DE4031649A external-priority patent/DE4031649C2/de
Priority claimed from DE9107818U external-priority patent/DE9107818U1/de
Application filed by Mgv-Moest-Spritzgerate Produktions- und Vertriebs-Gmbh filed Critical Mgv-Moest-Spritzgerate Produktions- und Vertriebs-Gmbh
Publication of EP0478944A1 publication Critical patent/EP0478944A1/fr
Application granted granted Critical
Publication of EP0478944B1 publication Critical patent/EP0478944B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
    • B01F35/8822—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances using measuring chambers of the piston or plunger type

Definitions

  • the invention relates to a method according to the preamble of claim 1 and an apparatus for performing the method.
  • German patent application 40 31 649 describes a method of this type in which the components are individually metered and then mixed by means of a mixing device, preferably a static mixer, the components being broken up and swirled together. If the metered individual components are added in portions, special measures are required for thorough mixing, as are described in German patent application 40 31 649. If the components are conveyed unevenly or in the case of highly viscous individual components, dynamic mixing using a so-called dynamic mixer is required.
  • the required operating pressure of the individual components is measured and displayed by pressure gauges and monitored by contact pressure gauges or material pressure switches, which switch the system used for dosing and mixing to malfunction if a single component fails or the operating pressure drops.
  • Proper functioning of the conveying and dosing of each component can also be monitored and displayed directly on the dosing pumps used for dosing. With flow measuring cells, for example, the material flows flowing through a metering pump can be monitored and e.g. regulated to compensate for leaks.
  • the invention has for its object to simplify the relatively complicated method mentioned and the complicated workflows of the device for performing this method so that the implementation of the method and the manufacture of a corresponding device are much cheaper.
  • the pumping process in the main pump provided for metering the first component is used directly for mixing the individual components, and in the simplest case no additional mixer is required. If the components solidify during the chemical reaction that occurs, for example when a hardener is added to a basic component, as is often the case with paints and varnishes, the process according to the invention naturally assumes that the chemical reaction time is at least somewhat longer than a double stroke the main pump including the subsequent processing time by an application device, for example a spray gun or the like. In most cases the response time will be much longer anyway.
  • the method according to the invention contradicts any origin, since it has hitherto been carefully avoided to mix several chemically reacting, in particular solidifying or hardening, components before the main component is sucked into the main pump. With this method, it is accepted that the components which react with one another may contaminate and solidify the pump if this is not prevented by pumping new material within the processing time or by thorough cleaning at certain intervals or in any case after the end of operation. This relatively minor disadvantage, however, bears no relation to the simplification of such a mixing plant and the savings in its manufacture.
  • the second and possibly further components are added to the first component during the intake of a metered volume defined by a double stroke of the main pump.
  • calculations must be made before the start of operation and the dosing strokes of the dosing pumps for the second and further components must be set so that the dosed volumes of the second and further components together with the dosed volume of the first component are each the volume result in a double stroke of the main metering pump for the first component. This has the great advantage that the stroke of the main pump can always remain the same and therefore no longer requires any facilities for adjusting the stroke.
  • the metering pumps for the second and possibly other components can also basically have a constant stroke own and have no adjustment devices if the same metering quantities are always to be metered in with a specific device. In this case, of course, a single metering pump could of course be changed at any time by certain modifications or replacements.
  • double-acting differential piston pumps are used as metering pumps and double-acting pneumatic drive cylinders are used to drive the same.
  • a premixer can be connected upstream, and in extreme cases further mixers of various types can be connected upstream or downstream depending on the requirements of the main pump.
  • the stroke volume of the metering pumps for the metered components can be adjusted, whereby a change in the metering ratios is very simplified.
  • the delivery lines leading to the suction side of the main pump for the components to be mixed must have a metering valve which is controlled so that the respective component during the filling stroke of the Main pump is fed.
  • the dosing pumps for the second and other components are therefore dependent on the pump rhythm of the main pump and each wait until the next filling stroke of the main pump begins.
  • the respective metering valve opens simultaneously with the start of the filling stroke and is only open during the filling stroke.
  • an embodiment according to claim 10 is very expedient, in which a stroke adjustment of the individual metering pumps can be carried out in the simplest way.
  • a material pressure switch can be provided according to claim 11, which is also controlled by the pneumatic sequential circuit. If the material pressure switch is in the waiting position until the next double stroke of the main pump, an overpressure is created in the associated metering pump. This is recognized by the material pressure switch. If the respective metering pump is operating correctly, the material pressure switch does not emit a signal. In the event of poor operation, however, it gives a signal to the pneumatic sequence control, which triggers an alarm or shutdown device. The signal can also be applied to an electrical documentation device, e.g. a line recorder.
  • a e.g. manually switchable changeover valve with multiple positions and paths can be provided.
  • the number of positions and paths exceeds the number of components by 1.
  • a device for two components requires a 3/3-way valve to control each of the two components individually and to control the mixing of the two in the third position Components.
  • Individual switches can of course also be provided in principle, but the use of such a changeover valve considerably simplifies the device.
  • the components can be liquefied by material heating, so that there is no impairment of the conveying and metering of the highly viscous components, which would lead to a malfunction of the entire device.
  • piston or gear pumps and hose pumps can in principle also be used as metering pumps in the devices according to the invention.
  • the first metering pump 10 for a first component (not shown) arranged in a storage container 12 and a smaller second metering pump 14 for a second component (not shown) arranged in a storage container 16 are provided.
  • the first component can be, for example, a lacquer-like base material and the second component can be a hardening material.
  • Both metering pumps 10 and 14 are designed as double-acting differential piston pumps, which are driven by a double-acting pneumatic drive cylinder 17 and 18, respectively.
  • the first metering pump 10 is preceded by a static premixer 20 and a prescreen 22.
  • the first component is sucked out of the reservoir 12 via a suction pipe 24.
  • the second metering pump 14 is preceded by a prescreen 26, which is connected to an intake pipe 28 immersed in the second component in the storage container 16.
  • a high-pressure filter 30 with strainer insert 32 is connected to the pressure side of the first metering pump 10 and is connected to the reservoir 12 via a relief valve 34 and a relief line 36.
  • the high-pressure filter 30 is connected via a further static mixer 38 and an application line 40 to an application device designed as a spray gun 42.
  • the pressure side of the second metering pump 14 is in turn connected to the storage container 16 via a relief valve 44 and a relief line 46.
  • a delivery line 48 is connected to the pressure side of the second metering pump 14, which opens into a metering valve 50, which in turn opens flush with the valve seat 52 into the premixer 20.
  • Both metering pumps 16 and 18 have a fixed, not easily adjustable metering volume. This is chosen so that the total volume sucked in during the suction stroke of the first metering pump 10 is equal to the sum of the metered volume of the first component sucked out of the reservoir 12 during this suction stroke and that fed into the mixer 20 through the metering valve 50 during the same suction stroke and one suction stroke the metering pump 14 corresponds to the corresponding metering volume of the second component.
  • the dosage ratio of the two components is precisely defined. This embodiment is therefore particularly suitable for applications in which the same material is always to be applied. If the metering ratio is nevertheless to be changed exceptionally, the second metering pump 14 can be set to the required metering volume by relatively quick conversion.
  • the relief valves 34 and 44 are opened so that the components sucked in through the intake pipes 24 and 28 can flow back into the reservoirs 12 and 16 via the metering pumps 10 and 14 and the relief lines 36 and 46, respectively.
  • the metering valve 50 remains closed.
  • the relief valves 34 and 44 are then closed again.
  • a functional check of the two metering pumps can be carried out separately when the relief valves 34, 44 are open and under operating conditions together when the relief valves 34 and 44 are closed on the spray gun 42 by means of a measuring orifice 130 and a measuring cup 54 or the like, which is indicated by the position of the dashed line Application line 40 is indicated.
  • the delivery line 48 is filled with the second component up to the valve seat.
  • the components premixed in the premixer 20 and when flowing through the first metering pump 10 are further mixed in the downstream static mixer 38 and then fed through the application line 40 designed as a high-pressure hose to the spray gun 42 and sprayed by the same.
  • the metering valve 50 is controlled by the pneumatic sequence control so that it opens at the start of the suction stroke of the first metering pump 10.
  • the suction stroke of the second metering pump 14 begins, so that the exact metering volume of the second metering pump 14 is fed into the mixer 20 while the first component is being sucked out of the storage container 12.
  • the metering valve 50 then closes at the latest at the end of the suction stroke of the first metering pump 10, so that precisely metered volumes of the first and second components are mixed and conveyed through the metering pump 10 into the mixer 38 and the application line 40. Since the valve seat 52 of the metering valve 50 is flush with the wall of the Vormi schers 20, there is no dead space and therefore no falsification of the metered volumes.
  • the suction pipe 24 is immersed in a detergent supply (not shown) which, in a manner known per se, comprises all parts of the device wetted by the mixed components, in particular the first metering pump 10, the high-pressure filter 30, the mixer 38, the application line 40 and the spray gun 42, which is cleaned thoroughly.
  • the metering valve 50 again remains closed during the cleaning process. If necessary, the remaining parts of the device can also be cleaned of the various components.
  • the second embodiment shown in FIG. 2 differs from the embodiment according to FIG. 1 in that a very simple adjusting device is provided for the metering stroke of the second metering pump 14.
  • the double-acting pneumatic drive cylinder 18 of the second metering pump 14 has a piston rod 56 guided in the free stroke, which is moved back and forth in the sense of the double arrow 58.
  • the metering pump 14 and the drive cylinder 18 are each firmly connected to a flange plate 60 or 62, which are held at a fixed mutual distance by axially extending rods 64, 66.
  • Roller valves 68 and 70 are each axially adjustably mounted on the rod 66 and can be fixed in any axial positions along the rod 66. Furthermore, the piston rod 56 carries an actuating block 72 which moves back and forth with the piston rod 56 and alternately actuates the roller valve 68 serving as the upper stroke limiter and the roller valve 70 serving as the lower stroke limiter.
  • the roller valves 68, 70 are adjusted according to a predetermined, corresponding to the desired dosage ratio of the second metering pump 14 along the rod 66 and are connected in a suitable manner to the pneumatic sequential control of the device, not shown, which in turn drives the drive cylinders 17, 18 according to the set lifting height controls. The two liquid components are therefore metered and conveyed in the correct metering ratio by the metering pumps 10 and 14.
  • the third exemplary embodiment of the device according to the invention shown in FIG. 3 is particularly suitable for a highly viscous first component.
  • a dynamic premixer 74 is provided, the piston rod 76 of which is moved back and forth by a pneumatic drive motor 78 connected to the pneumatic control in accordance with the double arrow 80 and for swirling and mixing those fed into the premixer 74
  • Components carries a series of suitably shaped plungers 82.
  • the upper end of the dynamic premixer 74 is connected to the inlet of the first metering pump 10 via a connecting line 84.
  • the premixer 74 is sealed by a high-pressure packing 266, so that the mixed material can only flow in via the connecting line 84 of the first metering pump.
  • the lower end of the premixer 74 is connected to a 3/3 way valve 86.
  • the 3/3-way valve 86 releases the suction of the first component from the storage container 12 via a heating device, generally designated 88, and a connecting line 90.
  • the valve 86 blocks all passageways and in its third position it opens the passageway from a supply of cleaning agent 92 via a cleaning agent pipe 94 to the premixer 74.
  • the valve 86 is in the latter position, one can turn on in a manner not shown open a valve 94 connected to a compressed air source and introduce compressed air into the pressure vessel 96 containing the cleaning agent 92 via a line 98 introduced into a closed pressure vessel 96.
  • a mixture of cleaning agent and compressed air enters the cleaning agent line 94 and, via this, into all parts of the device containing a mixture of the two components, which are cleaned particularly well, as was described with reference to FIG. 1.
  • the highly viscous material 100 is sucked out of the storage container 12 into the premixer 74 via the heating device 88.
  • An intake pipe 110 with angled end 112 dips into the highly viscous material 100.
  • a flexible suction hose 114 is pulled onto the end 112 in a liquid-tight manner.
  • the opposite end 116 of the suction hose 114 is connected to the connecting line 90 by means of a screw coupling 118.
  • the intake pipe 110 is surrounded at a coaxial distance by an overtube 144, the space created between the intake pipe 110 and the overtube 144 being sealed liquid-tight by radial walls 146 and 148, respectively.
  • This intermediate space is filled with heat-conducting material 150, in which a heating tape 152, which forms a heating element and is spirally wound around the suction pipe 110 in contact with the latter and is self-regulating and explosion-proof, is embedded.
  • the heating tape 152 embedded in the heat-conducting material 150 goes into a continuation of the same or a similar design gen 154, 156 over, which are held in contact on the outside of the suction hose 114 by clamps 158 and embedded in a heat insulation 160 comprising the suction hose 114.
  • the continuation 154 ends in an end termination 161 embedded in the thermal insulation 160.
  • the continuation 156 of the heating tape 152 is connected at its end 162 to an electrical connection box 164 which can be connected to a power source (not shown) via an electrical cable 166 with a plug 168.
  • the overtube 144 is at least in its section immersed in the material 100 surrounded by a protective tube 170 made of heat-insulating plastic at a coaxial distance, which is supported and held on the overtube 144 by means of webs 172.
  • the webs 172 are removably supported on the overtube 144, so that the protective tube 170 can be removed for cleaning purposes.
  • the lower end of the protective tube 170 rests on the bottom of the storage container 12, while the lower end 140 of the suction tube 110 is held a short distance above the bottom. Near its rear end, the protective tube 170 has a ring of inlet openings 174 for the material 100 forming the first component.
  • the protective tube 170 largely prevents the heating energy of the heating tape 152 from escaping into the material 100 located outside the protective tube 170.
  • the total volume formed within the protective tube 170, the suction tube 110 and the suction hose 114 is now e.g. chosen so that at least one minute of heating time is available for heating the material in this total volume during normal operation of the spray gun 42 with the respectively selected width of the screwed-on spray nozzle.
  • this prevents energy wastage in the area of the material 100 located outside the protective tube 170 and, on the other hand, ensures a uniform suction and supply of the material into the first metering pump 10 through sufficient heating and thereby liquefaction of the material.
  • a material pressure switch 176 is switched on in the delivery line 48, which consists of a material space 178 filled by the second component and a compressed air space 182 separated from it by a membrane 180.
  • the diaphragm 180 moves in the direction of the material space 178 or compressed air space 182.
  • This movement of the diaphragm 180 moves a plunger 184 which switches a 3/2-way valve 186 via which a device indicating this material deficiency occurs when there is a lack of material is operated.
  • FIG. 4 shows a pneumatic circuit diagram for the embodiment shown in FIG. 3, which, however, is also valid for the other embodiments after an analog adjustment.
  • a main source of compressed air is connected to a main air port 188.
  • the compressed air supplied is then passed through a water separator 190 and cleaned.
  • the line 192 connected to the water separator 190 is connected via two branch lines 194 and 196 to a 3/3-way valve 198 which is designed as a 5/3-way valve and which can be switched into three positions, to the position 201 in which it is Main air only the first metering pump 10 and the associated parts of the device, in the position 202, in which it supplies the main air only to the second metering pump 14 and the connected parts, and in the central position 203, in which it controls the operation of both metering pumps .
  • the operating pressure of the device which is displayed on the operating pressure indicator 206, is regulated via a compressed air regulator 204 connected to the line 192.
  • a 5/2 reversing valve 210 for the drive cylinder 78 is actuated via a line 208 connected to the pressure regulator 204.
  • the compressed air controlled by the 3/3-way valve 198 is passed through a compressed air regulator 212 and the pressure is displayed on the operating pressure indicator 214.
  • a 5/2 reversing valve 218 for the drive cylinder 17 is controlled via a line 216.
  • the reversing valve 218 controls the reciprocation of the drive cylinder 17 for the first metering pump 10.
  • the strokes of the working cylinder 17 are sensed by a 3/3-way valve 222 connected via the line 220, which control impulses via a line 224 to the pneumatic sequence control 226 the device there.
  • the second metering pump 14 is controlled via a compressed air regulator 228 with an operating pressure indicator 230, the compressed air regulator 228 being connected via a pressure line 232 to a 5/3-way valve 234 which is connected to the pneumatic sequence control 226 via lines 236 and 252.
  • the 5/3-way valve 234 allows the main air to flow into the working cylinder 18 of the second metering pump 14.
  • the lifting height of the drive cylinder 18 and thus the first metering pump 14 is controlled in the manner described above by means of the adjustable roller valves 68 and 70 and the actuation block 72.
  • the second component flowing from the reservoir 16 of the second metering pump 14 flows after leaving the metering pump 14 via the pressure line 238 into and out of the material pressure switch 176 to the metering valve 50.
  • the operating pressures change the position of the diaphragm 180 in the material pressure switch 176 so that the plunger 184 sensing the diaphragm position can recognize the respective operating state and pass this on to the pneumatic sequence control 226 via the 3/2-way valve 186 and a connected line 242 .
  • the operating admission pressure is regulated by the pneumatic sequence control 226 and fed to the material pressure switch 176 via a pressure line 244.
  • a start button 246 is actuated, as a result of which the connected start valve 248 controls the sequence control 226 via a line 250.
  • Display devices 254 and 268 connected to the sequence control 226 each show the end of the metering stroke of the working cylinder 17 and 18, respectively.
  • a 5/2-signal valve 258 is connected to the sequence control 226 via a further line 256. If there is a shortage of material, a visual display device 260 and / or an acoustic display device 262 can be triggered via the position of this signal valve 258.
  • the material pressure switch 176 controls the operating pressure at the metering valve 50, which is connected to the sequence control 226 via a compressed air line 264.
  • the sequential control 226 controls the metering valve 50 such that it opens only during the filling stroke of the first metering pump 10 and allows the material conveyed and metered by the second metering pump 14 to flow into the premixer 74. Since viscous material is conveyed in this embodiment, the two components are premixed in the dynamic premixer 74.
  • the start button 246 actuates the start valve 248 and is connected to the pneumatic sequence control 226, so that the drive cylinders 17 and 18 start their operation simultaneously.
  • the metering strokes of the two metering pumps 10 and 14 are recognized and controlled in such a way that the metering valve 50 is opened simultaneously with the filling stroke of the first metering pump 10.
  • the second component flows through the metering valve 50 in a metering volume determined by a double stroke of the second metering pump 14. This is recognized by the pneumatic sequencer 226. After the predetermined metering volume of the second component has left the metering valve 50, it closes and the second metering pump 14 stops, which is indicated by the display device 254 for the metering stroke end.
  • the sequence control 226 also detects the position of the 3/2-way valve 222, which is indicated on the display device 268 for the end of the metering stroke of the working cylinder 17. Then a simultaneous start of the next stroke of the two drive cylinders 17 and 18 is triggered again by the sequence control 226.
  • the sequence control 226 is designed so that it first controls the 5/3-way valve 234 of the working cylinder 18 into the blocking central position when the stroke end of the working cylinder 17 is not yet displayed.
  • the 5/3-way valve 234 remains in the middle blocking position until the working cylinder 17 also indicates its end of stroke. Only then does the 3/2-way valve 222 and the 5/3-way valve 234 are reversed so that the working cylinders 17 and 18 begin their opposite stroke. At the opposite stroke end the corresponding control sequence takes place, so that the subsequent stroke of both working cylinders 17 and 18 is started simultaneously.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Reciprocating Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP91114189A 1990-10-05 1991-08-23 Dispositif pour doser et mélanger deux composants fluides Expired - Lifetime EP0478944B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4031649 1990-10-05
DE4031649A DE4031649C2 (de) 1990-10-05 1990-10-05 Dosier- und Mischanlage
DE9107818U 1991-06-25
DE9107818U DE9107818U1 (de) 1991-06-25 1991-06-25 Ansaugvorrichtung für viskose Materialien

Publications (2)

Publication Number Publication Date
EP0478944A1 true EP0478944A1 (fr) 1992-04-08
EP0478944B1 EP0478944B1 (fr) 1994-05-18

Family

ID=25897494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91114189A Expired - Lifetime EP0478944B1 (fr) 1990-10-05 1991-08-23 Dispositif pour doser et mélanger deux composants fluides

Country Status (3)

Country Link
EP (1) EP0478944B1 (fr)
AT (1) ATE105733T1 (fr)
DE (1) DE59101664D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499745A (en) * 1994-02-18 1996-03-19 Nordson Corporation Apparatus for mixing and dispensing two chemically reactive materials
WO2002031358A1 (fr) * 2000-10-13 2002-04-18 Cps Color Group Oy Distributeur de liquide
RU2277443C2 (ru) * 2000-11-29 2006-06-10 Акцо Нобель Н.В. Способ различного нанесения составов покрытий с использованием многокомпонентного аппарата, содержащего три или большее число компонентов
WO2015172929A1 (fr) * 2014-05-14 2015-11-19 Wiwa Wilhelm Wagner Gmbh & Co. Kg Procédé pour faire fonctionner un système de pompage et système de pompage
WO2015172931A1 (fr) * 2014-05-14 2015-11-19 Wiwa Wilhelm Wagner Gmbh & Co. Kg Procédé de commande d'un système de pompage et système de pompage
CN106621883A (zh) * 2016-12-28 2017-05-10 张晓燕 一种便携式多组分气体稀释装置
US10422334B2 (en) 2014-05-14 2019-09-24 Wiwa Wilhelm Wagner Gmbh & Co. Kg Method for controlling a pump system and pump system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB208800A (en) * 1922-09-28 1923-12-28 Fordyce Charles Jones A new or improved solution mixing and discharging machine or apparatus
FR1228608A (fr) * 1958-10-06 1960-08-31 Medo Appara Tegesellschaft M B Pompe à commande hydraulique pour l'injection dosée de produits chimiques en solution dans un courant de liquide sous pression
US3129926A (en) * 1960-06-20 1964-04-21 Hudges Chemicals Company Device for mixing chemically reactive ingredients
DE2358569A1 (de) * 1973-11-24 1975-06-05 Philippe Cloup Vorrichtung zum einbringen eines zusatzstoffs in eine fluessigkeit
US4026439A (en) * 1975-06-18 1977-05-31 Cocks Eric H Precision fluid dispensing and mixing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB208800A (en) * 1922-09-28 1923-12-28 Fordyce Charles Jones A new or improved solution mixing and discharging machine or apparatus
FR1228608A (fr) * 1958-10-06 1960-08-31 Medo Appara Tegesellschaft M B Pompe à commande hydraulique pour l'injection dosée de produits chimiques en solution dans un courant de liquide sous pression
US3129926A (en) * 1960-06-20 1964-04-21 Hudges Chemicals Company Device for mixing chemically reactive ingredients
DE2358569A1 (de) * 1973-11-24 1975-06-05 Philippe Cloup Vorrichtung zum einbringen eines zusatzstoffs in eine fluessigkeit
US4026439A (en) * 1975-06-18 1977-05-31 Cocks Eric H Precision fluid dispensing and mixing system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 32 (C-45)(703) 25. Februar 1981 & JP-A-55 157 320 ( TOYO ) 8. Dezember 1980 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499745A (en) * 1994-02-18 1996-03-19 Nordson Corporation Apparatus for mixing and dispensing two chemically reactive materials
WO2002031358A1 (fr) * 2000-10-13 2002-04-18 Cps Color Group Oy Distributeur de liquide
RU2277443C2 (ru) * 2000-11-29 2006-06-10 Акцо Нобель Н.В. Способ различного нанесения составов покрытий с использованием многокомпонентного аппарата, содержащего три или большее число компонентов
WO2015172929A1 (fr) * 2014-05-14 2015-11-19 Wiwa Wilhelm Wagner Gmbh & Co. Kg Procédé pour faire fonctionner un système de pompage et système de pompage
WO2015172931A1 (fr) * 2014-05-14 2015-11-19 Wiwa Wilhelm Wagner Gmbh & Co. Kg Procédé de commande d'un système de pompage et système de pompage
CN106460832A (zh) * 2014-05-14 2017-02-22 威华·威尔赫姆·瓦格纳股份有限两合公司 用于控制泵系统的方法和泵系统
US10422334B2 (en) 2014-05-14 2019-09-24 Wiwa Wilhelm Wagner Gmbh & Co. Kg Method for controlling a pump system and pump system
CN106621883A (zh) * 2016-12-28 2017-05-10 张晓燕 一种便携式多组分气体稀释装置

Also Published As

Publication number Publication date
DE59101664D1 (de) 1994-06-23
EP0478944B1 (fr) 1994-05-18
ATE105733T1 (de) 1994-06-15

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