EP2638287A1 - Proportionales dosimeter zur dosierung von hilfsflüssigkeiten in eine hauptflüssigkeit - Google Patents

Proportionales dosimeter zur dosierung von hilfsflüssigkeiten in eine hauptflüssigkeit

Info

Publication number
EP2638287A1
EP2638287A1 EP11799118.2A EP11799118A EP2638287A1 EP 2638287 A1 EP2638287 A1 EP 2638287A1 EP 11799118 A EP11799118 A EP 11799118A EP 2638287 A1 EP2638287 A1 EP 2638287A1
Authority
EP
European Patent Office
Prior art keywords
chamber
liquid
metering
outlet
plunger
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
EP11799118.2A
Other languages
English (en)
French (fr)
Other versions
EP2638287B8 (de
EP2638287B1 (de
Inventor
Sébastien FURET
Philippe Duquennoy
Christophe Charriere
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.)
Dosatron International SAS
Original Assignee
Dosatron International SAS
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 Dosatron International SAS filed Critical Dosatron International SAS
Priority to PL11799118T priority Critical patent/PL2638287T3/pl
Publication of EP2638287A1 publication Critical patent/EP2638287A1/de
Application granted granted Critical
Publication of EP2638287B1 publication Critical patent/EP2638287B1/de
Publication of EP2638287B8 publication Critical patent/EP2638287B8/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • 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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
    • 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
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/10—Pumps having fluid drive
    • F04B43/107—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
    • F04B9/103—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
    • F04B9/105—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 reciprocating movement of the pumping member being obtained by a double-acting liquid motor
    • 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
    • F04B9/105—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 reciprocating movement of the pumping member being obtained by a double-acting liquid motor
    • F04B9/1053—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 reciprocating movement of the pumping member being obtained by a double-acting liquid motor one side of the double-acting liquid motor being always under the influence of the liquid under pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/85986—Pumped fluid control

Definitions

  • the invention relates to a proportional proportioner of an auxiliary liquid in a main liquid, a metering device of the type comprising a metering body with a main liquid inlet and an outlet, a hydraulic motor housed in the body, actuated by the main liquid, and connected to a plunger for driving in a reciprocating rectilinear motion, the plunger moving in a first chamber open at a first end remote from the hydraulic motor and opening at a second end in the interior volume of the body of a metering device containing main liquid, the plunger providing suction during a stroke away from the first end of the chamber, the plunger being able to exit the first chamber at the end of the forward stroke, a valve being provided for allow the passage of the liquid to the interior volume of the body beyond a certain pressure in the first chamber, when of the race back.
  • a proportional proportioner of this type is known in particular from patent EP 0 255 791 B1.
  • Such a proportional metering device operates without electricity, operated only by the main liquid and allows a product injection, constituting the auxiliary liquid, into the main liquid which is generally water under a relatively low inlet pressure.
  • Patent EP 0 885 357 B1 proposes a solution to this problem, involving an expandable bellows. This solution is effective, but involves a significant modification of the metering pump.
  • the object of the invention is, above all, to provide a proportional doser which avoids the entry of the auxiliary liquid into the body of the doser and ensures the mixing of the two liquids at the downstream outlet of the doser, thanks to simple modifications of a conventional doser , allowing an easy adaptation, with an interest of modularity. It is desirable further that the proportional proportioner, while ensuring mixing at the downstream outlet, allows adjustment of the metered quantity.
  • a proportional doser of the kind defined above is characterized in that it comprises a second chamber of variable volume limited by a membrane subjected to the pressure prevailing in the first chamber, the second chamber comprising a suction port for the auxiliary liquid and a discharge port of the auxiliary liquid, this discharge port being connected by a pipe to an injection chamber located downstream of the outlet of the metering body to ensure mixing of the auxiliary liquid with the main liquid coming out ,
  • the metering unit is advantageously arranged so that the pressure in the interior volume of the metering body is greater than the sum of the pressure in the injection chamber and the hydraulic head loss in the connection between the second chamber and the chamber. injection.
  • a throttling member is provided downstream of the dispenser outlet, and upstream of the injection chamber to create a pressure drop, in particular sufficient to push back, the membrane at the end of suction, especially when the plunger exits the first chamber at the end of the race.
  • the engine pressure drop between the interior volume of the metering body and the outlet if it is greater than the hydraulic head loss in the connection between the second chamber and the injection chamber, may be enough to push the membrane.
  • the second chamber is provided with a suction valve and a discharge valve; the settings of these valves as well as that of the throttling element are made to ensure proper operation of the dispenser.
  • the membrane defines, on the opposite side to the second chamber, a space communicating with the first end of the first chamber.
  • the second chamber is located in a volume delimited by concavities facing a first cup and a second cup assembled, the periphery of the membrane being tightly sealed between the two assembled cups, the first cup being fixed to the metering body around the first end of the first chamber, while the second cup is provided with the suction port and the discharge port.
  • the second chamber is thus formed between the membrane and the concavity of the second cup, the membrane being applied against the concavity of the first cup or that of the second cup.
  • the central portion of the membrane is integral with a rigid disk itself secured to an axial rod turned on the opposite side to the second chamber and slidable in a guide bore of the metering body, while leaving a passage for the liquid.
  • a rigid disk itself secured to an axial rod turned on the opposite side to the second chamber and slidable in a guide bore of the metering body, while leaving a passage for the liquid.
  • the axial position of a liner delimiting the first cylindrical chamber, in which the plunger moves is adjustable by means of a rotary ring.
  • the throttling element located downstream of the outlet of the metering body, may be constituted by a cap provided with a cylindrical skirt with at least one slot, in particular longitudinal, installed on an inlet port of a sleeve connected to the outlet of the metering body, and whose axial position is adjustable.
  • the valve provided to allow the passage of the liquid to the interior of the body, beyond a certain pressure in the first chamber during the return stroke, may be a calibrated valve installed in a chamber provided at the end of the plunger.
  • the internal volume of the metering body communicates directly with the inlet of the metering device, so that the pressure drop of the motor between the interior volume of the metering body and the outlet contributes to pushing back the membrane.
  • the pressure drop of the motor between the internal volume of the metering body and the outlet if it is greater than the hydraulic pressure drop in the connection between the second chamber and the injection chamber, may suffice to push back the membrane, to which case the throttle can be avoided.
  • Fig. 1 is an axial vertical section, with external parts, of a proportional proportioner according to the invention, in the suction rising phase of the auxiliary liquid.
  • Fig. 2 shows, similarly to FIG. 1, the descending metering device for injecting the auxiliary liquid.
  • Fig. 3 is an external view, in perspective, on a smaller scale of the dispenser according to the invention.
  • Fig.4 is an axial vertical section, with external parts, of a dosing variant according to the invention, in a downward phase.
  • Fig.5 is an enlarged detail of the V area of Fig.4, and
  • Fig.6 is an axial vertical section, with external parts, of another variant of the dispenser according to which the inlet of the water communicates directly with the metering body.
  • a proportional proportioner D of an auxiliary liquid in a main liquid which comprises a metering body 1, generally consisting of two parts, namely a base 1a and a lid 1b screwed onto this base, having an inlet 2 of main liquid and an outlet 3.
  • a hydraulic motor 4 of which only a lower part is visible in the drawing, is housed in the body 1.
  • the geometric axis of this body 1 is generally arranged vertically and the motor 4 is located essentially in the cover 1b.
  • the motor 4 is actuated by the main liquid and generally comprises a differential piston with hydraulic switching means at the end of races back and forth to reverse the direction of movement.
  • Engines of this type are marketed by the applicant company. An example of such engines is described in patent EP 1 971 774 B1 in the name of the applicant company.
  • the hydraulic motor 4 is connected to a plunger 5, vertical according to the arrangement of FIG. 1, to drive it in an alternating rectilinear motion.
  • the plunger 5 moves in a first cylindrical chamber 6, delimited by a liner 6a, open at a first end 7 remote from the hydraulic motor 4.
  • the chamber 6 opens at a second end 8 into the interior volume 9 of the metering body containing of the main liquid.
  • the plunger 5 is equipped, towards its lower end, with a seal 10 forming a valve, surrounding the plunger and housed in a groove 11.
  • This groove 1 1 allows a clearance of the seal 10 during the race of discharge (descent) of the piston 5 to allow the passage of the liquid from the chamber 6 to the space 9 beyond a certain pressure.
  • the plunger 5 when it makes a forward stroke that moves away from the first end 7 of the chamber, creates a suction and, when it makes a return stroke to said first end 7, the piston 5 causes an increase in pressure in the chamber 6.
  • the doser D comprises a second chamber 12, of variable volume, limited by a membrane M subjected to the liquid pressure prevailing in the first chamber 6.
  • the membrane M is flexible, deformable.
  • the second chamber 12 is advantageously located in a volume delimited by the concavities opposite two hollow cups 13, 14 assembled removably.
  • the cup 13, upper in the representation of FIG. 1, is attached to the lower end of a column 15 of the metering body in which is located the liner 6a and the chamber 6.
  • the membrane M is fixed in its central part to a rigid disk 16 integral with a axial rod 17, orthogonal to the disk, facing the chamber 6.
  • the rod 17 is engaged, with sufficient radial clearance for the passage of the liquid, in a bore 18 of a nozzle 19 provided in the lower part of the column 15.
  • the rod 17 has a length sufficient to guide the disk 16 and the membrane during the movements thereof.
  • the peripheral edge of the membrane is tightly sealed between the two cups 13, 14 and may comprise a bead favorable to achieving sealing.
  • the second chamber 12 is provided with a suction port 20, provided in the lower cup 14, as shown in FIG. 1.
  • the auxiliary liquid may come from a reservoir (not shown) connected by a pipe to a fitting 21 fitted to the orifice 20.
  • a suction valve 22 is further provided at this orifice 20, which allows the suction auxiliary liquid in the chamber 12, and prevents its discharge.
  • the cup 14 further comprises a discharge orifice 23, communicating with the chamber 12, equipped with a discharge valve 24 and a connector 25 on which is connected a flexible pipe 26.
  • the discharge connection 24 opens when the rise in pressure in the chamber 12 to allow the passage of the liquid to the pipe 26. This discharge valve 24 closes during the suction of the auxiliary liquid.
  • the flexible pipe 26 is connected, by a connection 27, to a sleeve 28 defining an injection chamber S downstream of the outlet 3.
  • the sleeve 28, T has a lateral orifice on which the fitting is mounted. 27, an axial port 29 on the outlet side 3, and another axial port 30 on the opposite side.
  • the orifice 29 is provided with a connection 31 at the outlet 3 of the dispenser.
  • the sleeve 28 and the connection 27 and the auxiliary liquid inlet are located downstream of the outlet 3 of the metering device, and the auxiliary liquid does not enter the interior volume 9 of the metering unit.
  • the mixing of the auxiliary liquid with the main liquid is carried out downstream of the outlet 3, and is discharged through the orifice 30, as indicated by the arrow F.
  • the membrane M delimits, on the side opposite the second chamber 12, a space E (see FIG 2) communicating with the first chamber 6 by the bore 18. This space E is also delimited by the bottom of the concavity of the cup 13.
  • a throttling member 32 is provided at the outlet of the metering body, upstream of the connection 27 and the injection of auxiliary liquid. This throttling member 32 is provided to create a sufficient pressure drop between the downstream and the interior volume 9 located upstream.
  • the pressure difference thus created between the volume 9 and the injection chamber S is set to a value greater than the hydraulic head loss of the discharge line comprising the pipe 26 and the valves 25, 27 (pressure drop in the connection between the second chamber and the injection chamber) to allow to push back the membrane M at the end of aspiration.
  • This pressure difference between the volume 9 and the chamber S is advantageously at least 0.2 bar.
  • the throttling member 32 is generally constituted by a calibrated check valve which prevents the return of product to the metering body.
  • the throttling member 32 may be constituted by a plug with a cylindrical skirt 33 comprising at least one slot 34, in particular longitudinal, giving it a certain elasticity.
  • the longitudinal position of the member 32 in the orifice 29 is adjustable to allow adjustment of the pressure drop.
  • the member 32 comprises, at each of its ends, shoulders which ensure its maintenance in the orifice 29.
  • a spring may be provided to return the member 32 to the desired throttling position.
  • the operation of the doser is as follows.
  • the suction phase corresponds to the upward movement according to FIG. 1, or forward stroke, of the hydraulic motor 4 and the plunger 5 which creates a vacuum in the first chamber 6.
  • This depression causes a movement of the membrane M upwardly. which corresponds to an increase in the volume of the chamber 12.
  • the membrane M itself creates a vacuum in the chamber 12, which causes the suction valve 22 to rise and an auxiliary liquid inlet into the chamber 12, while that the discharge valve 24 remains closed.
  • the longitudinal position of the chamber 6 is adjustable, in particular by means of a ring B which, by rotation, makes it possible to adjust the axial position of the liner 6a, the wall of which can slide inside the body.
  • Means such as those shown in FR 2 681 646 may be provided to allow this adjustment.
  • the suction valve 22, the discharge valve 24, the seal 10 of the plunger and the throttle member 32 are sized and adjusted to ensure proper operation of the dispenser.
  • the piston 5 descends into the chamber 6 by creating a slight overpressure in the body of the proportioner B due to the pressure drop in the seal 10 forming a valve.
  • the descent of the piston 5 is not sufficient for delivery into the injection chamber S.
  • the discharge is ensured by the fact that the pressure in the internal volume 9 is greater than the hydraulic head loss in the connection line 25, 26, 27. This gives the complete displacement of the membrane M and the maintenance of the opening of the valve 24.
  • the membrane M is pushed down, the suction valve 22 is closed, while the discharge valve 24 has opened for the injection of the auxiliary liquid into the chamber S.
  • the membrane M comes to bear against the wall of the concavity of the cup 14.
  • the movable seal 10 of the plunger 5 serves as a safety valve to prevent excessive pressure build-up in the chambers 6 and 12.
  • FIGS. 4 and 5 illustrate an alternative embodiment with a metering body 1 .1, according to which the plunger 5.1 is equipped with a fixed seal 10.1, tight up and down, and a calibrated check valve 35.
  • the plunger 5.1 is equipped with a fixed seal 10.1, tight up and down, and a calibrated check valve 35.
  • the valve 35 is installed in a chamber 36 provided at the end of the plunger 5.1 and opening at its end.
  • the chamber 36 communicates through channels 37 with the space beyond the seal 10 .1, on the side of the volume 9 of the metering body.
  • the valve 35 can be opened on the descent of the plunger 5.1 when the pressure in the lower part of the chamber 6 becomes greater than a limit determined by the taring of the valve. During the rise of the plunger 5.1, the valve 35 remains closed.
  • valve function 35 makes it possible to tare the opening pressure so that the membrane is forced back.
  • the advantage of the variant of Fig.4 and 5 is to be able to establish an opening pressure determined calibrated valve 35.
  • a conventional embodiment by floating seal is accompanied by, against a low hydraulic head loss weak if we are low flow.
  • Fig.1 -3 correspond to a pump configuration in which the interior volume 9 of the metering body communicates directly with the outlet 3; the pressure is substantially the same in the interior volume of the body and at the exit; the pressure drop created by the throttling member 32 ensures a sufficient pressure difference between the interior volume 9 of the metering body and the injection chamber S.
  • Fig.6 illustrates an alternative pump configuration in which the interior volume 9.2 of the metering body communicates directly with the inlet 2.2 of the metering unit.
  • the pressure drop of the motor between the internal volume 9.2 of the metering body and the outlet 3.2 if it is greater than the hydraulic head loss in the connection between the second chamber 12.2 and the injection chamber S.2, may be sufficient to push back the membrane, in which case the throttling member 32 can be avoided.
  • the proportional doser according to the invention makes it possible, economically and effectively, to avoid any entry of auxiliary liquid into the metering body, while using a conventional metering body and hydraulic motor, by replacing the standard suction valve. by a simple kit to install.
  • the control of the membrane M is carried out with the main liquid, generally motive water, and a plunger 5 dosing.
  • the construction of the whole is facilitated.
  • the direct control with the plunger 5 makes it possible not to have a pressure equalization system which would be necessary on a hydraulic pump with hydraulic control and intermediate fluid.
  • the seal 10 of the plunger 5 plays its role of safety valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Measuring Volume Flow (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Coating Apparatus (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP20110799118 2010-11-08 2011-11-07 Dosiervorrichtung zum proportionalen dosieren einer zusatzflüssigkeit in eine hauptflüssigkeit Active EP2638287B8 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11799118T PL2638287T3 (pl) 2010-11-08 2011-11-07 Dozownik proporcjonalny do dozowania cieczy dodatkowej do cieczy głównej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1059182A FR2967218B1 (fr) 2010-11-08 2010-11-08 Doseur proportionnel d'un liquide auxiliaire dans un liquide principal.
PCT/IB2011/054948 WO2012063184A1 (fr) 2010-11-08 2011-11-07 Doseur proportionnel d'un liquide auxiliaire dans un liquide principal.

Publications (3)

Publication Number Publication Date
EP2638287A1 true EP2638287A1 (de) 2013-09-18
EP2638287B1 EP2638287B1 (de) 2014-06-04
EP2638287B8 EP2638287B8 (de) 2014-11-19

Family

ID=44486826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110799118 Active EP2638287B8 (de) 2010-11-08 2011-11-07 Dosiervorrichtung zum proportionalen dosieren einer zusatzflüssigkeit in eine hauptflüssigkeit

Country Status (19)

Country Link
US (1) US9303634B2 (de)
EP (1) EP2638287B8 (de)
JP (1) JP6002139B2 (de)
CN (1) CN103237985B (de)
AP (1) AP2013007093A0 (de)
AU (1) AU2011327826B2 (de)
BR (1) BR112013011178B1 (de)
CA (1) CA2815098C (de)
DK (1) DK2638287T3 (de)
EA (1) EA022907B1 (de)
ES (1) ES2488168T3 (de)
FR (1) FR2967218B1 (de)
MX (1) MX2013005119A (de)
NZ (1) NZ609542A (de)
PL (1) PL2638287T3 (de)
PT (1) PT2638287E (de)
UA (1) UA107739C2 (de)
WO (1) WO2012063184A1 (de)
ZA (1) ZA201305956B (de)

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FR3001003B1 (fr) 2013-01-17 2015-03-20 Dosatron International Dispositif de dosage pour introduire un additif liquide dans un courant de liquide principal.
FR3012538B1 (fr) 2013-10-30 2018-05-18 Dosatron International Pompe a membrane et dispositif a clapets pour une telle pompe
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FR3020839B1 (fr) * 2014-05-06 2016-05-13 Dosatron International Dispositif de surveillance du fonctionnement d'un doseur d'additif liquide dans un liquide principal, et doseur equipe d'un tel dispositif.
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CA2815098C (fr) 2016-06-28
WO2012063184A1 (fr) 2012-05-18
ES2488168T3 (es) 2014-08-26
BR112013011178B1 (pt) 2020-12-22
JP6002139B2 (ja) 2016-10-05
AP2013007093A0 (en) 2013-09-30
US9303634B2 (en) 2016-04-05
EA022907B1 (ru) 2016-03-31
EP2638287B8 (de) 2014-11-19
FR2967218A1 (fr) 2012-05-11
EA201390668A1 (ru) 2013-09-30
UA107739C2 (en) 2015-02-10
NZ609542A (en) 2014-09-26
CN103237985B (zh) 2016-06-22
AU2011327826B2 (en) 2015-09-24
CA2815098A1 (fr) 2012-05-18
CN103237985A (zh) 2013-08-07
AU2011327826A1 (en) 2013-06-20
ZA201305956B (en) 2014-04-30
EP2638287B1 (de) 2014-06-04
PT2638287E (pt) 2014-08-28
DK2638287T3 (da) 2014-09-15
MX2013005119A (es) 2013-06-13
BR112013011178A2 (pt) 2016-08-02
US20130233421A1 (en) 2013-09-12
JP2014500951A (ja) 2014-01-16
FR2967218B1 (fr) 2016-09-02
PL2638287T3 (pl) 2014-11-28

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