• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Static mixer (M) for homogenizing a mixture of at least two liquids, in particular after injecting an auxiliary liquid (L1) into a main liquid (L), comprising: a closed container (1), with a conduit of inlet (3) extending from a first wall of the container and extending to the vicinity of the opposite wall, and an outlet duct (4) substantially parallel to the inlet duct, each duct being provided with a device connecting piece (3a, 4a) to the outside, through the wall of the container.
    公开号:FR3016302A1
    申请号:FR1450195
    申请日:2014-01-10
    公开日:2015-07-17
    发明作者:Sandrine Lambinet；Philippe Duquennoy；Manal Badii
    申请人:Dosatron International SAS；
    IPC主号:
    专利说明:

    [0001] STATIC MIXER FOR HOMOGENIZING A MIXTURE OF AT LEAST TWO LIQUIDS AND DOSING DEVICE EQUIPPED WITH SUCH A MIXER.
    [0002] 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 from FR 2 967 218 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 simple and economical static mixer which makes it possible to obtain a good homogenization of the mixed liquids. According to the invention, a static mixer for homogenizing a mixture of at least two liquids, in particular after injection of an auxiliary liquid into a main liquid, is characterized in that it comprises: a container closed by walls comprising a top, a bottom and side walls, - an inlet duct, starting from a first wall of the container and extending to the vicinity of the opposite wall, - and an outlet duct, substantially parallel to the duct inlet, beginning in the vicinity of the first wall and extending to the opposite wall, each duct being provided with a connection device to the outside, through a wall of the container. 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 the vicinity of the bottom, while the outlet duct begins near the top and extends to the bottom. According to one variant, the inlet duct is horizontal, as is the outlet duct.
    [0003] Advantageously, 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.
    [0004] The container may have 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, on the center side of the section. The horizontal section of the container may also be circular. 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. 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.
    [0005] 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. 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. . 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.
    [0006] The invention also relates to a metering device for introducing an auxiliary liquid into a main liquid stream, flowing in a pipe, comprising a reciprocating differential piston metering pump for withdrawing the auxiliary liquid into a container, this pump comprising a first inlet for receiving a main liquid flow which drives the pump, a second inlet for withdrawing the auxiliary liquid and an outlet for mixing the auxiliary liquid and the main liquid, said metering device being characterized in that it comprises a mixer as defined previously disposed at the outlet of the pump.
    [0007] 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. The invention consists, apart from the arrangements set forth above, of a number of other arrangements which will be more explicitly discussed hereinafter with reference to an exemplary embodiment described with reference to the accompanying drawings, but which is in no way limiting. In these drawings: 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 with respect to FIG. 4. Fig. 4 is an elevational view from above 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 FIGS. 3 and 4. FIG. 7 is a plan view with respect to FIG. 6.
    [0008] Fig. 8 is a left view with respect to FIG. Fig. 9 is a vertical section of a pump to which the mixer is attached, and Fig. 10 is an elevational view of the pump and mixer of Figs. 9.
    [0009] Referring to the drawings, especially Figs. 1, there can be seen a static mixer M for homogenizing 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. Top 1a and bottom 1b, with the associated sidewalls, are shell-shaped as shown in FIG. 3-8, turning their concavity towards each other and are assembled according to an equatorial plane P, preferably by welding or by screwing. The container 1 is advantageously made of plastic. The top 1 has two vertical legs 2 provided with a hole for a possible attachment of the container to a support.
    [0010] 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 shown in FIG. 2. The average distance between the open bottom end of the conduit 3 and the bottom wall 1b is preferably less than 20 mm. The conduit 3 passes 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 conduit 4 is open downwards, and passes through the bottom lb to form an outlet pipe 4a advantageously provided with annular grooves for receiving a quick coupling 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. Alternatively, 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 bulged so that the stream of liquid coming out of the conduit 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 concave surface 6 (FIG 2) of the top 1 a, remote from the inlet duct 3, directs the flow towards the outlet duct 4. The container 1 preferably has an oval horizontal section, in particular an elliptical section as visible on Fig. 3 and 7, having a minor axis 7 and a major axis 8. However, the horizontal section may be circular. The inlet duct 3 is located in the vicinity of the container wall, and preferably at one end of the major axis 8 of the section as shown in FIG. 3-5. The lower part 3b (FIGS 3 and 5) may have a U-shaped cross-section that is open towards the wall of the container and is adapted to bear against an area forming a belt of the bottom 1b. Alternatively, 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. Alternatively, 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. for a pump of 3 m3 / hour, of capacity 0.5 liter. 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 neighboring wall from the bottom 1 b. The assembly along the equatorial plane P is provided by any appropriate connecting means, in particular by welding or gluing.
    [0011] 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. The vortices created in the mixture 1 for the passage of the liquid stream from the lower end of the duct 3 to the upper end of the duct 4, in a sufficient volume, make it possible to homogenize the mixture. Fig. 2 illustrates a metering 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 reservoir R from which it is taken by a metering pump 9 with a differential piston 10 to reciprocating rectilinear motion. Such 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 using a tube 13 dipping into the tank R and an outlet 14 for the mixture of 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. In the particular example illustrated in FIG. 2, 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 outlet 4a is connected to the divider neck flow, constituting part of the pipe C. According to the arrangement of FIG. 2, only a fraction of the main flow rate passes through the pump 9. The metering 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.
    [0012] 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.
    [0013] According to a variant, as illustrated in FIG. 9 and 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 a threaded inlet and outlet 3/4, identical. The inlet is connected by a connection J to the outlet of the pump 9. According to the example of FIG. 9, the 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. 25
    权利要求:
    Claims (14)
    [0001]
    REVENDICATIONS1. Static mixer for homogenizing a mixture of at least two liquids, in particular after injection of an auxiliary liquid into a main liquid, characterized in that it comprises: - a closed container (1) with walls comprising a top (1a ), a bottom (1b) and side walls, - an inlet duct (3), starting from a first wall of the container and extending to the vicinity of the opposite wall, - and an outlet duct ( 4), substantially parallel to the inlet duct, beginning in the vicinity of the first wall and extending to the opposite wall, each duct being provided with a connection device (3a, 4a) on the outside, through a wall of the container.
    [0002]
    2. Mixer according to 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 inlet duct (3) being vertical when the mixer is in the working position, from above and extending to the vicinity of the bottom, while the outlet duct (4) begins in the vicinity of the top and extends to the bottom.
    [0003]
    3. Mixer according to claim 1, characterized in that the inlet duct is horizontal, as is the outlet duct.
    [0004]
    4. Mixer according to any one of the preceding claims, characterized in that the inlet duct (3) is disposed adjacent the wall of the container (1), in particular against the wall.
    [0005]
    5. Mixer according to any one of the preceding claims, characterized in that the outlet duct (4) is disposed near the inlet duct (3), in particular against the inlet duct.
    [0006]
    6. Mixer according to claim 2, characterized in that the inlet duct (3) has, in the lower part, a partially open cross section (3b), the open portion of this section being closed essentially by the wall of the container.
    [0007]
    7. Mixer according to any one of the preceding claims, characterized in that the container (1) has an oval horizontal section, in particular elliptical, and the inlet duct (3) is located near one end of the large axis (8) of the section, while the outlet duct (4) is located substantially against the inlet duct, the side of the center of the section.
    [0008]
    8. Mixer according to claim 7, characterized in that the plane of the parallel axes of the inlet duct (3) and the outlet duct (4) contains the major axis (8) of the horizontal section of the mixer.
    [0009]
    9. Mixer according to any one of the preceding claims, characterized in that the bottom (1b) and the top (1a) of the container are curved.
    [0010]
    10. Mixer according to any one of the preceding claims, characterized in that 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 container width is between 0.3 and 0.7.
    [0011]
    11. Mixer according to any one of the preceding claims, characterized in that it is made with two identical half-pieces, turned and assembled head to tail.
    [0012]
    12. A metering device (D) for introducing an auxiliary liquid (L1) into a main liquid stream (L) flowing in a line (C), comprising a metering pump (9) with reciprocating differential piston for withdrawing the auxiliary fluid in a container, said pump having a first inlet (11) for receiving a main liquid flow which drives the pump, a second inlet (12) for withdrawing the auxiliary liquid and an outlet (14) for the mixture of auxiliary liquid and main liquid, characterized in that it comprises a mixer (M) according to any one of the preceding claims, disposed at the outlet (14) of the pump.
    [0013]
    The metering device according to claim 12, comprising a flow divider (V) installed in the main liquid line (C), the metering pump (9) being connected in parallel with the flow divider, the first inlet (11). of the pump being connected by a first pipe (16) to the inlet of the flow divider while the outlet (14) of the pump is connected by a second pipe (15) to a neck of the flow divider, characterized in that that the mixer (M) is arranged on the second pipe (15) between the pump outlet and the connection to the neck of the flow divider.
    [0014]
    14. Dosing device according to claim 12 or 13, characterized in that the volume of the container (1) is equal to or greater than three times the displacement of the dosing pump (9).
    类似技术:
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    AU2015205340A1|2016-07-21|
    US20160325244A1|2016-11-10|
    TR201909259T4|2019-07-22|
    FR3016302B1|2016-02-05|
    JP2017501874A|2017-01-19|
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    SG11201605466VA|2016-08-30|
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    RU2016132754A3|2018-07-12|
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    EP3092064B1|2019-03-27|
    KR20160107171A|2016-09-13|
    WO2015104654A1|2015-07-16|
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    法律状态:
    2015-01-26| PLFP| Fee payment|Year of fee payment: 2 |
    2016-01-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-01-27| PLFP| Fee payment|Year of fee payment: 4 |
    2018-01-30| PLFP| Fee payment|Year of fee payment: 5 |
    2020-01-28| PLFP| Fee payment|Year of fee payment: 7 |
    2020-11-25| PLFP| Fee payment|Year of fee payment: 8 |
    2022-01-28| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1450195A|FR3016302B1|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|FR1450195A| FR3016302B1|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|
    ARP140104948A| AR098990A1|2014-01-10|2014-12-29|STATIC MIXER TO HOMOGENEIZE A MIXTURE OF AT LEAST TWO LIQUIDS AND DOSAGE DEVICE EQUIPPED WITH SUCH MIXER|
    JP2016563276A| JP6554119B2|2014-01-10|2015-01-06|Static mixer for homogenizing a mixture of at least two liquids, and dosing device provided with the mixer|
    CN201580003805.4A| CN106102888B|2014-01-10|2015-01-06|Static mixer for homogenizing the mixture of at least two liquid and the proportioner equipped with this mixer|
    ES15701249T| ES2732886T3|2014-01-10|2015-01-06|Static mixer to homogenize a mixture of at least two liquids and dosing device equipped with such a mixer|
    KR1020167018079A| KR20160107171A|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|
    US15/109,880| US10183262B2|2014-01-10|2015-01-06|Static mixer for homogenizing a mixture of at least two liquids and dosing device provided with such a mixer|
    SG11201605466VA| SG11201605466VA|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|
    TR2019/09259T| TR201909259T4|2014-01-10|2015-01-06|Dosing device equipped with a static mixer and such a mixer for homogenization of the mixture of at least two liquids.|
    AU2015205340A| AU2015205340B2|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|
    EP15701249.3A| EP3092064B1|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|
    PCT/IB2015/050094| WO2015104654A1|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|
    RU2016132754A| RU2674960C2|2014-01-10|2015-01-06|Static mixer for homogenising mixture of at least two liquids and dosing device provided with such mixer|
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