EP3092064B1 - Static mixer for homogenising a mixture of at least two liquids and dosing device provided with such a mixer - Google Patents
Static mixer for homogenising a mixture of at least two liquids and dosing device provided with such a mixer Download PDFInfo
- Publication number
- EP3092064B1 EP3092064B1 EP15701249.3A EP15701249A EP3092064B1 EP 3092064 B1 EP3092064 B1 EP 3092064B1 EP 15701249 A EP15701249 A EP 15701249A EP 3092064 B1 EP3092064 B1 EP 3092064B1
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- EP
- European Patent Office
- Prior art keywords
- duct
- mixer
- container
- wall
- input
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims description 45
- 239000000203 mixture Substances 0.000 title claims description 12
- 230000003068 static effect Effects 0.000 title claims description 7
- 238000002156 mixing Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000273 veterinary drug Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/421—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions by moving the components in a convoluted or labyrinthine path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
- B01F23/451—Mixing liquids with liquids; Emulsifying using flow mixing by injecting one liquid into another
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/315—Injector mixers in conduits or tubes through which the main component flows wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/32—Injector mixers wherein the additional components are added in a by-pass of the main flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
-
- 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
-
- 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
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
- B01F35/831—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/915—Reverse flow, i.e. flow changing substantially 180° in direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/919—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings
- B01F2025/9191—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component
Definitions
- the invention relates to a static mixer for homogenizing a mixture of at least two liquids, in particular after injecting an auxiliary liquid into a main liquid.
- the injection by means of hydraulic metering pumps of a mixture of water and an auxiliary liquid product, in two separate phases, is known, in particular according to FR 2 967 218 , describing a device according to the preamble of claim 11, in the name of the Applicant Company.
- the auxiliary liquid in the case of use in agricultural environment, may consist of nutrients in solution, or by veterinary drugs. It is important that the mixture between the main liquid and the auxiliary liquid is as homogeneous as possible. The same requirement can be found in other applications, the metering pumps in question may be used in industry, or in hospitals, or other areas also requiring to obtain a homogeneous liquid mixture, according to the dose prescribed for the liquid auxiliary.
- the object of the invention is therefore to provide a static mixer of simple and economical construction which makes it possible to obtain a good homogenization of the mixed liquids.
- a static mixer for homogenizing a mixture of at least two liquids, in particular after injecting an auxiliary liquid into a main liquid is characterized by the features of claim 1.
- the first wall may be formed by the top of the container, and the opposite wall formed by the bottom, the inlet duct being vertical when the mixer is in the working position, from above and extending to near the bottom, while the outlet duct begins near the top and extends to the bottom.
- the inlet duct is horizontal, as is the outlet duct.
- the inlet duct is disposed in the vicinity of the side wall of the container, in particular against the wall.
- the outlet duct may be disposed near the inlet duct, in particular against the inlet duct, or be shifted therefrom.
- the mixer according to the invention induces a swirling flow of the mixture to pass from the inlet duct to the outlet duct, resulting in a high homogenization effect.
- the inlet duct may have, in the lower part, a partially open cross section, the open portion of this section being essentially closed by the wall of the container.
- the container has an oval horizontal section, in particular elliptical, and the inlet duct is located near one end of the major axis of the section, while the outlet duct is located substantially against the inlet duct, the side of the center of the section.
- the plane of the parallel axes of the inlet duct and of the outlet duct contains the major axis of the horizontal section of the mixer.
- the bottom and the top of the container can be curved to promote the flow of fluid in the mixer, and ensure a good resistance to pressure.
- the container is relatively flat and has a thickness, in a direction orthogonal to the plane of the axes of the inlet duct and the outlet duct, whose ratio to the width of the container is between 0.3 and 0.7.
- the thickness of the container corresponds to the small axis of the section, while the width corresponds to the major axis.
- the mixer may be associated with a single pump.
- the mixer can be made with two identical half-pieces, turned and assembled head to tail.
- the invention also relates to a dosing device for introducing an auxiliary liquid into a main liquid stream flowing in a pipe according to claim 11.
- the metering device may comprise a flow divider installed in the main liquid line, the metering pump being connected in parallel with the flow divider, the first inlet of the pump being connected by a first channel to the inlet of the flow divider while the outlet of the pump is connected by a second pipe to a neck of the flow divider, the mixer being disposed on the second pipe between the outlet of the pump and the connection to the neck of the flow divider.
- the metering device may include a variable neck throttling means of the flow divider.
- the volume of the container is adapted to the metering pump with which this mixer is used.
- the volume of the container is advantageously equal to or greater than three times the displacement of the metering pump.
- a static mixer M can be seen to homogenize a mixture of at least two liquids.
- the mixer M comprises a closed container 1, with a top 1a, a bottom 1b, and side walls.
- the top 1a and the bottom 1b, with the associated side walls, are shell-shaped as visible on Fig. 3-8 , rotating their concavity towards each other and are assembled in an equatorial plane P, preferably by welding or by screwing.
- the container 1 is advantageously made of plastic.
- the top has two vertical legs 2 provided with a hole for a possible attachment of the container to a support.
- the mixer M comprises an inlet duct 3, vertical when the mixer M is in the working position.
- the duct 3 from above 1a and extends to the vicinity of the bottom of the container, as visible on Fig. 2 .
- the average distance between the open bottom end of the duct 3 and the bottom wall 1b is preferably less than 20 mm.
- the ducts pass through the top 1a to form a threaded connection pipe 3a.
- the mixer M further comprises an outlet duct 4, substantially parallel to the inlet duct 3, starting below and in the vicinity of the top 1a, and extending to the bottom 1b.
- the average distance between the open upper end of the duct 3 and the top wall 1a is preferably less than 20 mm.
- the duct 4 is open at the bottom, and passes through the bottom 1b to form an outlet pipe 4a advantageously provided with annular grooves for receiving a quick connection device.
- the annular grooves respectively allow the establishment of a seal and a staple for retaining a rotating nut for fixing on a threaded end.
- the inlet and outlet ducts could be horizontal between a first side wall and an opposite wall.
- the top 1a and the bottom 1b are curved so that the stream of liquid coming out of the duct 3 at the bottom reaches a curved surface 5 of the bottom 1b ( Fig. 6 which directs the flow to the opposite zone of the container.
- the container 1 has an oval horizontal section, in particular elliptical as visible on Fig. 3 and 7 , having a minor axis 7 and a major axis 8.
- the horizontal section may be circular.
- the inlet duct 3 is located in the vicinity of the container wall, and at one end of the major axis 8 of the section as visible on Fig. 3-5 .
- the lower part 3b ( Fig. 3 and 5 ) may have a U-shaped cross section open towards the wall of the container and adapted to bear against a zone, forming a belt, of the bottom 1b.
- the lower portion of the inlet duct may be in the form of a cylindrical pipe.
- the outlet duct 4 is located substantially against the inlet duct 3.
- the geometric axes of ducts 3 and 4 are located in a vertical plane which contains the major axis 8 of the horizontal section of the container.
- the output conduit may be shifted, i.e., spaced, from the input conduit.
- the container 1 is relatively flat, that is to say that its thickness in a direction orthogonal to the plane of the geometric axes of the ducts 3 and 4 is relatively small compared to its width.
- the thickness of the container 1 substantially corresponds to the dimension of the minor axis 7 of the section, while the width corresponds substantially to the size of the major axis 8.
- the ratio of the thickness of the container to its width is advantageously between 0.3 and 0.7.
- the volume of the container 1 is preferably at least three times the displacement of a reciprocating piston metering pump to which the mixer M is intended.
- a volume of 1.5 liters for the mixer M is an example of a possible value.
- the top 1a and the bottom 1b are molded separately and are assembled by arranging the upper half 1a on the lower half 1b so that the inlet duct 3 is between the outlet duct 4 and the wall near the bottom 1b.
- the assembly along the equatorial plane P is provided by any appropriate connecting means, in particular by welding or gluing.
- the mixer M is then installed in a position such that the geometric axes of the ducts 3 and 4 are vertical, the inlet pipe 3a being at the top while the outlet pipe 4a is at the bottom.
- the inlet pipe 3a is connected to an inlet pipe in which a mixture of at least two liquids circulates, and must be made more homogeneous.
- the liquid flow opens at the bottom of the conduit 3 at a reduced distance generally less than 20 mm from the bottom wall.
- the liquid stream by encountering the concave surface 5 of the bottom wall describes a curved path towards the opposite end of the container 1 and rises, by making vortices, towards the upper end of the outlet duct 4 for s'. flow through this conduit.
- the upper end of the duct 4 is located at a short distance from the upper wall of the top 1a, this distance being in particular less than 20 mm.
- Fig. 2 illustrates a dosing device D for introducing an auxiliary liquid L1 into a main liquid stream L flowing in a line C.
- the auxiliary liquid L1 is contained in a tank R from which it is taken by a metering pump 9 with a differential piston 10 with movement rectilinear alternative.
- a metering pump is known, in particular according to EP0255791
- the pump 9 has a first inlet 11 for receiving a main liquid flow which drives the pump, a second inlet 12 for withdrawing the auxiliary liquid L1 by means of a tube 13 immersed in the reservoir R and a output 14 for mixing auxiliary liquid and main liquid.
- the mixer M is arranged such that its ducts 3, 4 are vertical and the inlet connection pipe 3a is connected to the outlet 14 of the pump 9 via a pipe 15, in particular a flexible pipe.
- the outlet pipe 4a of the mixer is connected to the pipe C.
- a flow divider V having a venturi, is inserted in line C and pump 9 is connected in parallel with the flow divider.
- the first inlet 11 of the pump is connected by a first pipe 16 to the inlet of the flow divider, while the outlet 14 of the pump is connected by the pipe 15 to the mixer M whose output 4a is connected to the neck of the flow divider, constituting part of the pipe C.
- the dosing device D of Fig. 2 may further comprise variable throttling means 17 of the flow divider neck.
- a valve 18 to break a potential vacuum is advantageously provided at the connection port of the flow divider V with the outlet pipe 4a of the mixer.
- the diameter of the inlet pipe 3a is at least equivalent to the diameter of the outlet 14 of the pump.
- the volume of the container of the mixer M is at least equal to three times the displacement of the pump 9.
- the displacement corresponds to the volume displaced during a round trip of the differential piston 10.
- the mixer M can be made with two identical half-pieces 1a, turned and assembled head to tail, according to the vertical plane Q assembly.
- the mixer has an identical threaded input and output.
- the inlet is connected by a connection J to the outlet of the pump 9.
- ducts 3 and 4 are horizontal and offset.
- the mixer according to the invention while being of simple and economical production, makes it possible to obtain a homogeneous mixture of at least two liquids, in particular with a relatively small dose of auxiliary liquid, in particular less than 5% of the liquid. main.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Accessories For Mixers (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Description
L'invention est relative à un mélangeur statique pour homogénéiser un mélange d'au moins deux liquides, en particulier après injection d'un liquide auxiliaire dans un liquide principal.The invention relates to a static mixer for homogenizing a mixture of at least two liquids, in particular after injecting an auxiliary liquid into a main liquid.
L'injection au moyen de pompes doseuses hydrauliques d'un mélange d'eau et d'un produit liquide auxiliaire, en deux phases séparées, est connue, en particulier d'après
Le document
L'invention a donc pour but de fournir un mélangeur statique de réalisation simple et économique qui permet d'obtenir une bonne homogénéisation des liquides mélangés.The object of the invention is therefore to provide a static mixer of simple and economical construction which makes it possible to obtain a good homogenization of the mixed liquids.
Selon l'invention, un mélangeur statique pour homogénéiser un mélange d'au moins deux liquides, en particulier après injection d'un liquide auxiliaire dans un liquide principal, est caractérisé par les caractéristiques de la revendication 1.According to the invention, a static mixer for homogenizing a mixture of at least two liquids, in particular after injecting an auxiliary liquid into a main liquid, is characterized by the features of
La première paroi peut être formée par le dessus du récipient, et la paroi opposée formée par le fond, le conduit d'entrée étant vertical lorsque le mélangeur est en position de travail, partant du dessus et s'étendant jusqu'au voisinage du fond, tandis que le conduit de sortie débute au voisinage du dessus et s'étend jusqu'au fond.The first wall may be formed by the top of the container, and the opposite wall formed by the bottom, the inlet duct being vertical when the mixer is in the working position, from above and extending to near the bottom, while the outlet duct begins near the top and extends to the bottom.
Selon une variante, le conduit d'entrée est horizontal, de même que le conduit de sortie.According to one variant, the inlet duct is horizontal, as is the outlet duct.
Avantageusement le conduit d'entrée est disposé au voisinage de la paroi latérale du récipient, en particulier contre la paroi.Advantageously, the inlet duct is disposed in the vicinity of the side wall of the container, in particular against the wall.
Le conduit de sortie peut être disposé à proximité du conduit d'entrée, en particulier contre le conduit d'entrée, ou en être décalé.The outlet duct may be disposed near the inlet duct, in particular against the inlet duct, or be shifted therefrom.
Le mélangeur selon l'invention induit un écoulement tourbillonnant du mélange pour passer du conduit d'entrée au conduit de sortie, ce qui entraîne un effet d'homogénéisation élevé.The mixer according to the invention induces a swirling flow of the mixture to pass from the inlet duct to the outlet duct, resulting in a high homogenization effect.
Le conduit d'entrée peut présenter, en partie inférieure, une section transversale partiellement ouverte, la partie ouverte de cette section étant fermée pour l'essentiel par la paroi du récipient.The inlet duct may have, in the lower part, a partially open cross section, the open portion of this section being essentially closed by the wall of the container.
Le récipient présente une section horizontale ovale, en particulier elliptique, et le conduit d'entrée est situé au voisinage d'une extrémité du grand axe de la section, tandis que le conduit de sortie est situé sensiblement contre le conduit d'entrée, du côté du centre de la section. Avantageusement, le plan des axes parallèles du conduit d'entrée et du conduit de sortie contient le grand axe de la section horizontale du mélangeur.The container has an oval horizontal section, in particular elliptical, and the inlet duct is located near one end of the major axis of the section, while the outlet duct is located substantially against the inlet duct, the side of the center of the section. Advantageously, the plane of the parallel axes of the inlet duct and of the outlet duct contains the major axis of the horizontal section of the mixer.
Le fond et le dessus du récipient peuvent être bombés pour favoriser l'écoulement du fluide dans le mélangeur, et assurer une bonne tenue à la pression.The bottom and the top of the container can be curved to promote the flow of fluid in the mixer, and ensure a good resistance to pressure.
De préférence, le récipient est relativement plat et présente une épaisseur, suivant une direction orthogonale au plan des axes du conduit d'entrée et du conduit de sortie, dont le rapport à la largeur du récipient est compris entre 0.3 et 0.7.Preferably, the container is relatively flat and has a thickness, in a direction orthogonal to the plane of the axes of the inlet duct and the outlet duct, whose ratio to the width of the container is between 0.3 and 0.7.
Dans le cas ou le récipient présente une section ovale, en particulier elliptique, l'épaisseur du récipient correspond au petit axe de la section, tandis que la largeur correspond au grand axe.In the case where the container has an oval section, in particular elliptical, the thickness of the container corresponds to the small axis of the section, while the width corresponds to the major axis.
Le mélangeur peut être associé à une pompe seule. Selon une variante, le mélangeur peut être réalisé avec deux demi-pièces identiques, tournées et assemblées tête-bêche.The mixer may be associated with a single pump. According to a variant, the mixer can be made with two identical half-pieces, turned and assembled head to tail.
L'invention est également relative à un dispositif de dosage pour introduire un liquide auxiliaire dans un courant de liquide principal, circulant dans une conduite, selon la revendication 11.The invention also relates to a dosing device for introducing an auxiliary liquid into a main liquid stream flowing in a pipe according to
Le dispositif de dosage peut comprendre un diviseur de débit installé dans la conduite de liquide principal, la pompe doseuse étant branchée en parallèle du diviseur de débit, la première entrée de la pompe étant reliée par une première canalisation à l'entrée du diviseur de débit tandis que la sortie de la pompe est reliée par une deuxième canalisation à un col du diviseur de débit, le mélangeur étant disposé sur la deuxième canalisation entre la sortie de la pompe et le raccord au col du diviseur de débit.The metering device may comprise a flow divider installed in the main liquid line, the metering pump being connected in parallel with the flow divider, the first inlet of the pump being connected by a first channel to the inlet of the flow divider while the outlet of the pump is connected by a second pipe to a neck of the flow divider, the mixer being disposed on the second pipe between the outlet of the pump and the connection to the neck of the flow divider.
Le dispositif de dosage peut comporter un moyen d'étranglement variable du col du diviseur de débit.The metering device may include a variable neck throttling means of the flow divider.
Le volume du récipient est adapté à la pompe doseuse avec laquelle ce mélangeur est utilisé. Le volume du récipient est avantageusement égal ou supérieur a trois fois la cylindrée de la pompe doseuse.The volume of the container is adapted to the metering pump with which this mixer is used. The volume of the container is advantageously equal to or greater than three times the displacement of the metering pump.
L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question ci-après à propos d'un exemple de réalisation décrit avec référence aux dessins annexés, mais qui n'est nullement limitatif. Sur ces dessins :
-
Fig. 1 est une vue en élévation d'un mélangeur selon l'invention. -
Fig. 2 est une coupe verticale, à plus petite échelle, d'un dispositif de dosage avec pompe doseuse et mélangeur selon l'invention. -
Fig. 3 est une vue de dessous par rapport àFig. 4 . -
Fig. 4 est une vue en élévation du dessus du mélangeur. -
Fig. 5 est une vue en perspective du dessus couché sur un côté. -
Fig. 6 est une coupe verticale du dessous du mélangeur, tourné à 180° par rapport au dessus desFig. 3 et 4 . -
Fig. 7 est une vue en plan par rapport àFig. 6 . -
Fig. 8 est une vue de gauche par rapport àFig. 6 . -
Fig.9 est une coupe verticale d'une pompe sur laquelle est fixé le mélangeur, et -
Fig.10 une vue en élévation de la pompe et du mélangeur deFig. 9 .
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Fig. 1 is an elevational view of a mixer according to the invention. -
Fig. 2 is a vertical section, on a smaller scale, of a metering device with dosing pump and mixer according to the invention. -
Fig. 3 is a view from below compared toFig. 4 . -
Fig. 4 is an elevational view of the top of the mixer. -
Fig. 5 is a perspective view of the top lying on one side. -
Fig. 6 is a vertical section of the bottom of the mixer, rotated 180 ° from the top of theFig. 3 and 4 . -
Fig. 7 is a plan view with respect toFig. 6 . -
Fig. 8 is a left view with respect toFig. 6 . -
Fig.9 is a vertical section of a pump to which the mixer is attached, and -
Fig.10 an elevational view of the pump and mixerFig. 9 .
En se reportant aux dessins, notamment à
Le dessus 1a et le fond 1b, avec les parois latérales associées, sont en forme de coque comme visible sur
Le mélangeur M comporte un conduit d'entrée 3, vertical lorsque le mélangeur M est en position de travail. Le conduit 3 part du dessus 1a et s'étend jusqu'au voisinage du fond du récipient, comme visible sur
Le mélangeur M comporte en outre un conduit de sortie 4, sensiblement parallèle au conduit d'entrée 3, débutant au-dessous et au voisinage du dessus 1a, et s'étendant jusqu'au fond 1b. La distance moyenne entre l'extrémité supérieure ouverte du conduit 3 et la paroi du dessus 1a est de préférence inférieure à 20 mm. Le conduit 4 est ouvert vers le bas, et traverse le fond 1b pour former une tubulure de sortie 4a avantageusement munie de gorges annulaires pour recevoir un dispositif de raccordement rapide. Les gorges annulaires permettent respectivement la mise en place d'un joint et d'une agrafe pour retenir un écrou tournant assurant la fixation sur un embout fileté.The mixer M further comprises an
En variante, les conduits d'entrée et de sortie pourraient être horizontaux entre une première paroi latérale et une paroi opposée.Alternatively, the inlet and outlet ducts could be horizontal between a first side wall and an opposite wall.
Le dessus 1a et le fond 1b sont bombés de sorte que le courant de liquide qui sort du conduit 3 en partie basse rencontre une surface courbe 5 du fond 1b (
Le récipient 1 présente une section horizontale ovale, en particulier elliptique comme visible sur
Le conduit d'entrée 3 est situé au voisinage de la paroi du récipient, et à une extrémité du grand axe 8 de la section comme visible sur
Le conduit de sortie 4 est situé sensiblement contre le conduit d'entrée 3. Les axes géométriques des conduits 3 et 4 sont situés dans un plan vertical qui contient le grand axe 8 de la section horizontale du récipient. En variante, le conduit de sortie peut être décalé, c'est-à-dire écarté, du conduit d'entrée.The
Le récipient 1 est relativement plat, c'est-à-dire que son épaisseur suivant une direction orthogonale au plan des axes géométriques des conduits 3 et 4 est relativement réduite par rapport à sa largeur. L'épaisseur du récipient 1 correspond sensiblement à la dimension du petit axe 7 de la section, tandis que la largeur correspond sensiblement à la dimension du grand axe 8. Le rapport de l'épaisseur du récipient à sa largeur est avantageusement compris entre 0.3 et 0.7.The
Le volume du récipient 1 est de préférence au moins égal à trois fois la cylindrée d'une pompe doseuse à piston à mouvement alternatif à laquelle serait destiné le mélangeur M. Un volume de 1.5 litre pour le mélangeur M est un exemple de valeur possible, pour une pompe de 3 m3/heure, de cylindrée 0.5 litre.The volume of the
Le dessus 1a et le fond 1b sont moulés séparément puis sont assemblés en disposant la moitié supérieure 1a sur la moitié inférieure 1b de telle manière que le conduit d'entrée 3 se trouve entre le conduit de sortie 4 et la paroi voisine du fond 1b. L'assemblage suivant le plan équatorial P est assuré par tout moyen de liaison approprié, notamment par soudure ou par collage.The top 1a and the bottom 1b are molded separately and are assembled by arranging the
Le mélangeur M est ensuite installé dans une position telle que les axes géométriques des conduits 3 et 4 soient verticaux, la tubulure d'entrée 3a étant en partie haute tandis que la tubulure de sortie 4a est en partie basse. La tubulure d'entrée 3a est raccordée à une conduite d'arrivée dans laquelle un mélange d'au moins deux liquides circule, et doit être rendu plus homogène. Le courant de liquide débouche en partie basse du conduit 3 à une distance réduite généralement inférieure à 20 mm de la paroi du fond. Le courant de liquide en rencontrant la surface concave 5 de la paroi de fond décrit une trajectoire courbe en direction de l'extrémité opposée du récipient 1 et remonte, en effectuant des tourbillons, vers l'extrémité supérieure du conduit de sortie 4 pour s'écouler par ce conduit. L'extrémité supérieure du conduit 4 est située à faible distance de la paroi supérieure du dessus 1a, cette distance étant notamment inférieure à 20 mm.The mixer M is then installed in a position such that the geometric axes of the
Les tourbillons créés dans le mélange 1 pour le passage du courant de liquide de l'extrémité inférieure du conduit 3 à l'extrémité supérieure du conduit 4, dans un volume suffisant, permettent d'homogénéiser le mélange.The vortices created in the
La pompe 9 comporte une première entrée 11 pour recevoir un débit de liquide principal qui assure l'entraînement de la pompe, une seconde entrée 12 pour prélever le liquide auxiliaire L1 à l'aide d'un tube 13 plongeant dans le réservoir R et une sortie 14 pour le mélange de liquide auxiliaire et de liquide principal.The
Le mélangeur M est disposé de telle sorte que ses conduits 3, 4 soient verticaux et la tubulure de raccordement d'entrée 3a est reliée à la sortie 14 de la pompe 9 par une canalisation 15, en particulier une canalisation flexible. La tubulure de sortie 4a du mélangeur est reliée à la conduite C.The mixer M is arranged such that its
Dans l'exemple particulier illustré sur
Selon la disposition de
Un clapet 18 propre à casser un vide éventuel est avantageusement prévu au niveau de l'orifice de raccordement du diviseur de débit V avec la tubulure de sortie 4a du mélangeur.A
Le diamètre de la tubulure d'entrée 3a est au moins équivalent au diamètre de la sortie 14 de la pompe.The diameter of the
Le volume du récipient du mélangeur M est au moins égal à trois fois la cylindrée de la pompe 9. La cylindrée correspond au volume déplacé lors d'un aller retour du piston différentiel 10.The volume of the container of the mixer M is at least equal to three times the displacement of the
Selon une variante, comme illustré sur
Le mélangeur selon l'invention, tout en étant d'une réalisation simple et économique, permet d'obtenir un mélange homogène d'au moins deux liquides, notamment avec une dose relativement faible de liquide auxiliaire, en particulier inférieure à 5 % du liquide principal.The mixer according to the invention, while being of simple and economical production, makes it possible to obtain a homogeneous mixture of at least two liquids, in particular with a relatively small dose of auxiliary liquid, in particular less than 5% of the liquid. main.
Claims (14)
- A static mixer for homogenizing a mixture of at least two liquids, in particular after injection of an auxiliary liquid into a main liquid, comprising:- a container (1) closed by walls comprising a top (1a), a bottom (1b) and lateral walls;- an input duct (3), starting from a first wall of the container, and extending as far as the vicinity of the opposite wall; and- an output duct (4), substantially parallel to the input duct, which starts in the vicinity of the first wall and extends as far as the opposite wall,
each duct being provided with a device (3a, 4a) for connection to the exterior through a wall of the container,
characterized in that the container (1) has an oval horizontal cross-section, which in particular is elliptical, and the input duct (3) is situated in the vicinity of an end of the large axis (8) of the cross-section, whereas the output duct (4) is situated substantially against the input duct, on the side of the center of the cross-section. - The mixer as claimed in claim 1, characterized in that the first wall is formed by the top (1a) of the container, and the opposite wall is formed by the bottom (1b), the input duct (3) being vertical when the mixer is in the position of work, starting from the top and extending as far as the vicinity of the bottom, whereas the output duct (4) starts in the vicinity of the top and extends as far as the bottom.
- The mixer as claimed in claim 2, characterized in that in the lower part the input duct (3) has a partially open transverse cross-section (3b), the open part of this cross-section being closed substantially by the wall of the container.
- The mixer as claimed in claim 1, characterized in that the input duct is horizontal, as is the output duct.
- The mixer as claimed in any one of the preceding claims, characterized in that the input duct (3) is arranged in the vicinity of the wall of the container (1), and in particular against the wall.
- The mixer as claimed in any one of the preceding claims, characterized in that the output duct (4) is arranged in the vicinity of the input duct (3), and in particular against the input duct.
- The mixer as claimed in claim 1, characterized in that the plane of the parallel axes of the input duct (3) and of the output duct (4) contains the large axis (8) of the horizontal cross-section of the mixer.
- The mixer as claimed in any one of the preceding claims, characterized in that the bottom (1b) and the top (1a) of the container are curved.
- The mixer as claimed in any one of the preceding claims, characterized in that the container is relatively flat, and has a thickness, according to a direction orthogonal to the plane of the axes of the input duct and of the output duct, the ratio of which to the width of the container is between 0.3 and 0.7.
- The mixer as claimed in any one of the preceding claims, characterized in that it is produced with two identical half-parts, which are turned and assembled head-to-tail.
- A dosing device (D) for introduction of an auxiliary liquid (L1) into a flow of main liquid (L) circulating in a duct (C), comprising a dosing pump (9) with a differential piston with reciprocal motion in order to collect the auxiliary liquid from a container, this pump comprising a first input (11) for receipt of a flow of main liquid which ensures that the pump is driven, a second input (12) for collection of the auxiliary liquid, and an output (14) for mixing of auxiliary liquid and main liquid, characterized in that it comprises a mixer (M), arranged at the output (14) of the pump, the dosing device being intended to homogenize the mixing of the auxiliary liquid and the main liquid, and comprising:- a container (1) closed by walls comprising a top (1a), a bottom (1b) and lateral walls;- an input duct (3), starting from a first wall of the container, and extending as far as the vicinity of the opposite wall; and- an output duct (4), substantially parallel to the input duct, which starts in the vicinity of the first wall and extends as far as the opposite wall,
each duct being provided with a device (3a, 4a) for connection to the exterior through a wall of the container, - The dosing device as claimed in claim 11, comprising in addition a static mixer according any one of the claims 1 to 10.
- The dosing device as claimed in claim 11 or 12, comprising a flow divider (V) installed inside the main liquid duct (C), with the dosing pump (9) being connected in parallel to the flow divider, the first input (11) of the pump being connected by a first pipe (16) to the input of the flow divider, whereas the output (14) of the pump is connected by a second pipe (15) to a neck of the flow divider, characterized in that the mixer (M) is arranged on the second pipe (15) between the output of the pump and the connection to the neck of the flow divider.
- The dosing device as claimed in claim 11 or 12 or 13, characterized in that the volume of the container (1) is three times the capacity of the dosing pump (9), or more.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1450195A FR3016302B1 (en) | 2014-01-10 | 2014-01-10 | STATIC MIXER FOR HOMOGENIZING A MIXTURE OF AT LEAST TWO LIQUIDS AND DOSING DEVICE EQUIPPED WITH SUCH A MIXER |
PCT/IB2015/050094 WO2015104654A1 (en) | 2014-01-10 | 2015-01-06 | Static mixer for homogenising a mixture of at least two liquids and dosing device provided with such a mixer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3092064A1 EP3092064A1 (en) | 2016-11-16 |
EP3092064B1 true EP3092064B1 (en) | 2019-03-27 |
Family
ID=50483114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15701249.3A Active EP3092064B1 (en) | 2014-01-10 | 2015-01-06 | Static mixer for homogenising a mixture of at least two liquids and dosing device provided with such a mixer |
Country Status (13)
Country | Link |
---|---|
US (1) | US10183262B2 (en) |
EP (1) | EP3092064B1 (en) |
JP (1) | JP6554119B2 (en) |
KR (1) | KR20160107171A (en) |
CN (1) | CN106102888B (en) |
AR (1) | AR098990A1 (en) |
AU (1) | AU2015205340B2 (en) |
ES (1) | ES2732886T3 (en) |
FR (1) | FR3016302B1 (en) |
RU (1) | RU2674960C2 (en) |
SG (1) | SG11201605466VA (en) |
TR (1) | TR201909259T4 (en) |
WO (1) | WO2015104654A1 (en) |
Families Citing this family (7)
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FR3001003B1 (en) * | 2013-01-17 | 2015-03-20 | Dosatron International | ASSAY DEVICE FOR INTRODUCING A LIQUID ADDITIVE IN A MAIN LIQUID CURRENT. |
FR3016302B1 (en) * | 2014-01-10 | 2016-02-05 | Dosatron International | STATIC MIXER FOR HOMOGENIZING A MIXTURE OF AT LEAST TWO LIQUIDS AND DOSING DEVICE EQUIPPED WITH SUCH A MIXER |
MX2018005056A (en) * | 2017-07-19 | 2019-03-28 | Chapin Mfg Inc | Carbon capture. |
CN108675417B (en) * | 2018-05-13 | 2021-03-02 | 九江市蓝天碧水环保有限公司 | Working method of rotary disturbance type flocculation stirring equipment for sewage treatment |
DE202018106008U1 (en) * | 2018-10-19 | 2018-11-29 | Anni Hjorth Blum | Connection device for an acrolein ballast water treatment device |
US11596911B2 (en) * | 2020-04-07 | 2023-03-07 | Mpw Industrial Services Group, Inc. | Chemical injection system for connection to a chemical tank and a process line |
WO2024137485A1 (en) * | 2022-12-23 | 2024-06-27 | General Electric Technology Gmbh | Static mixer for fluids |
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FR2602282B1 (en) | 1986-07-31 | 1988-09-23 | Cloup Jean | IMPROVEMENT IN DEVICES FOR INJECTING AN ADDITIVE DOSE INTO A MAIN FLUID |
JP2514096Y2 (en) * | 1990-07-06 | 1996-10-16 | デンカ生研株式会社 | Liquid mixer |
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RU2202406C2 (en) * | 2001-01-12 | 2003-04-20 | Баев Владимир Сергеевич | Method of preparation of water-and-fuel emulsion, static cavitation unit for emulsification and hydrodynamic multi-section cavitation unit for homogenization of emulsion |
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FR3016302B1 (en) * | 2014-01-10 | 2016-02-05 | Dosatron International | STATIC MIXER FOR HOMOGENIZING A MIXTURE OF AT LEAST TWO LIQUIDS AND DOSING DEVICE EQUIPPED WITH SUCH A MIXER |
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2014
- 2014-01-10 FR FR1450195A patent/FR3016302B1/en active Active
- 2014-12-29 AR ARP140104948A patent/AR098990A1/en active IP Right Grant
-
2015
- 2015-01-06 AU AU2015205340A patent/AU2015205340B2/en not_active Ceased
- 2015-01-06 RU RU2016132754A patent/RU2674960C2/en active
- 2015-01-06 KR KR1020167018079A patent/KR20160107171A/en not_active Application Discontinuation
- 2015-01-06 EP EP15701249.3A patent/EP3092064B1/en active Active
- 2015-01-06 WO PCT/IB2015/050094 patent/WO2015104654A1/en active Application Filing
- 2015-01-06 SG SG11201605466VA patent/SG11201605466VA/en unknown
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- 2015-01-06 JP JP2016563276A patent/JP6554119B2/en active Active
- 2015-01-06 TR TR2019/09259T patent/TR201909259T4/en unknown
- 2015-01-06 US US15/109,880 patent/US10183262B2/en active Active
- 2015-01-06 CN CN201580003805.4A patent/CN106102888B/en not_active Expired - Fee Related
Non-Patent Citations (1)
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RU2016132754A (en) | 2018-02-14 |
ES2732886T3 (en) | 2019-11-26 |
RU2016132754A3 (en) | 2018-07-12 |
FR3016302B1 (en) | 2016-02-05 |
FR3016302A1 (en) | 2015-07-17 |
SG11201605466VA (en) | 2016-08-30 |
CN106102888A (en) | 2016-11-09 |
AU2015205340A1 (en) | 2016-07-21 |
TR201909259T4 (en) | 2019-07-22 |
JP6554119B2 (en) | 2019-07-31 |
KR20160107171A (en) | 2016-09-13 |
US10183262B2 (en) | 2019-01-22 |
AU2015205340B2 (en) | 2019-03-28 |
JP2017501874A (en) | 2017-01-19 |
CN106102888B (en) | 2019-03-15 |
AR098990A1 (en) | 2016-06-22 |
WO2015104654A1 (en) | 2015-07-16 |
EP3092064A1 (en) | 2016-11-16 |
RU2674960C2 (en) | 2018-12-13 |
US20160325244A1 (en) | 2016-11-10 |
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