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WO2025021359A1 - Dispositif de traitement d'un milieu fluide, en particulier d'huile minérale ou d'huile synthétique, et procédé de fonctionnement d'un tel dispositif - Google Patents

Dispositif de traitement d'un milieu fluide, en particulier d'huile minérale ou d'huile synthétique, et procédé de fonctionnement d'un tel dispositif Download PDF

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Publication number
WO2025021359A1
WO2025021359A1 PCT/EP2024/065946 EP2024065946W WO2025021359A1 WO 2025021359 A1 WO2025021359 A1 WO 2025021359A1 EP 2024065946 W EP2024065946 W EP 2024065946W WO 2025021359 A1 WO2025021359 A1 WO 2025021359A1
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WO
WIPO (PCT)
Prior art keywords
medium
line
conveying
unit
additive
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.)
Pending
Application number
PCT/EP2024/065946
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German (de)
English (en)
Inventor
Jochen Pohlmann
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.)
Rektol & Co Kg GmbH
Original Assignee
Rektol & Co Kg GmbH
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Publication of WO2025021359A1 publication Critical patent/WO2025021359A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/43—Mixing liquids with liquids; Emulsifying using driven stirrers
    • 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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
    • B01F23/471—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt using a very viscous liquid and a liquid of low viscosity
    • 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
    • B01F23/49—Mixing systems, i.e. flow charts or diagrams
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/84—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations for material continuously moving through a tube, e.g. by deforming the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/84—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations for material continuously moving through a tube, e.g. by deforming the tube
    • B01F31/841—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations for material continuously moving through a tube, e.g. by deforming the tube with a vibrating element inside the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/89—Methodical aspects; Controlling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5013—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use movable by mechanical means, e.g. hoisting systems, grippers or lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
    • B01F33/813—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles mixing simultaneously in two or more mixing receptacles
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/211—Measuring of the operational parameters
    • B01F35/2115—Temperature
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/211—Measuring of the operational parameters
    • B01F35/2117—Weight
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/2136—Viscosity
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/2201—Control or regulation characterised by the type of control technique used
    • B01F35/2202—Controlling the mixing process by feed-back, i.e. a measured parameter of the mixture is measured, compared with the set-value and the feed values are corrected
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2211—Amount of delivered fluid during a period

Definitions

  • the present invention relates to a device for processing a flowable medium, in particular mineral oil or synthetic oil, and a method for operating such a device.
  • the present invention relates to a device for processing a flowable medium, in particular lubricating oil based on mineral oil or synthetic oil, for example API classes I, II, III, IV and V.
  • the present invention also relates to a method for operating such a device, a computer program for carrying out such a method, and the use of such a device for processing a flowable medium.
  • the invention is explained below using the production of lubricating oil, but also applies analogously to other flowable media which are mixed with additives (chemical and physical active ingredients).
  • the additives themselves can be liquid, viscous or solid.
  • Lubricating oils are such a mixture in which a mineral oil or a synthetic oil, also referred to as base oil, is mixed with one or typically several additives. While the available base oils are more or less the same, it is the additives that optimize the lubricating oil for a specific application. Additives can be cleaning substances, solubilizers, substances that create a protective film, lubricants and the like, although the list is not exhaustive. In order for the lubricating oil to be able to fully develop its effect, the additives must be distributed as homogeneously as possible in the base oil. To do this, the additives are usually added together with the base oil in a typically heatable reaction vessel. in which an agitator is arranged.
  • the additives are homogenized with the heated base oil for a certain time by mixing using the agitator and then removed from the reaction vessel.
  • the mixture obtained in this way is then the finished lubricating oil.
  • the mixture can also be circulated, with the mixture removed from the reaction vessel being fed back to the same or another reaction vessel through a conveyor line.
  • the stability of the mixture of the base oil and the additives is also of great importance. Regardless of how high the homogeneity of the mixture is after the mixing process, separation can occur over time, which is evident, for example, from a precipitation of one or more of the additives.
  • stability can be understood as a measure of the period of time for how long a certain homogeneity of the mixture is maintained. It is known to use ultrasonic waves for homogenization in addition to or instead of the agitator. In this regard, reference is made to DE 10243 837 A1 and WO 2017/013424 A1. However, it has been found that the use of ultrasonic waves does not necessarily lead to increased homogeneity and increased stability.
  • the additives are placed in a reaction vessel together with the base oil and mixed together using a stirrer.
  • This mixing process is carried out at temperatures of between approximately 40 and 60°C, with the temperature to be used increasing with increased oil viscosity and the number of additives added.
  • the energy required to heat to these temperatures is not insignificant and causes correspondingly high costs.
  • the mixture obtained in this way cannot be immediately filled into ready-to-use bottles or similar containers, but must first be conveyed into an intermediate container where the mixture can cool down. This cooling process can take several days. The associated equipment and time expenditure increases the cost of the manufacturing process.
  • the object of one embodiment of the present invention is to provide a device for processing a flowable medium, in particular mineral oil or synthetic oil, with which it is possible to remedy the disadvantages mentioned above using inexpensive means.
  • the device should make it possible to provide a medium containing additives with a high level of homogeneity and high stability.
  • one embodiment of the present invention is based on the object of creating a method with which such a device can be operated to produce a medium with a high level of homogeneity and high stability.
  • one embodiment of the invention is based on the object of providing a computer program product for carrying out this method and proposing a use of such a device for processing a flowable medium. This object is achieved with the features specified in claims 1, 15, 16 and 17.
  • One embodiment of the invention relates to a device for processing a flowable medium, in particular mineral oil or synthetic oil, comprising - a reaction vessel with at least one inlet and at least one outlet, - a conveying line which runs in particular outside the reaction vessel and which connects the outlet to the inlet, - a conveying device arranged in the conveying line for conveying the medium from the outlet to the inlet, - at least one additive feed line for supplying one or more additives to the flowable medium, - an ultrasonic unit arranged in the conveying line or interacting with the conveying line for providing ultrasonic waves and for introducing the ultrasonic waves into the flowable medium, and - a control device for controlling and/or regulating at least o the conveying capacity of the conveying device and o the frequency and/or the sound power of the ultrasonic waves provided by the ultrasonic unit.
  • the finished mixture of base oil and additive is also referred to as lubricating oil.
  • the mixture of base oil and additives can be removed from the reaction vessel through the feed line and fed back into it. In this respect, the mixture can be circulated as often as desired, whereby two to four circulations, i.e. two to four passes through the reaction vessel and the ultrasound unit, are considered sufficient in the present device to achieve the desired homogeneity and stability.
  • the reaction vessel serves mainly as a storage container to introduce the desired amount of medium into the device.
  • the ultrasound waves provided by the ultrasound unit introduce considerable amounts of energy into the medium, so that it is no longer necessary to carry out the homogenization of the additives in the base oil at an elevated temperature. Rather, the homogenization can take place at room temperature. The energy required can be saved.
  • the homogenization can be carried out at room temperature.
  • the residence time of the mixture of medium and additive in the ultrasonic unit is of great importance.
  • the sound power and the frequency of the ultrasonic waves provided by the ultrasonic unit are of great importance for the resulting homogeneity and the resulting stability.
  • the residence time depends essentially on the volume flow of the medium or the mixture of medium and additive through the ultrasonic unit.
  • the volume flow can be adjusted using the conveying capacity of the conveying device.
  • the ultrasonic unit is designed in such a way that the sound power and/or the frequency of the ultrasonic waves it provides can be adjusted.
  • the ultrasonic unit typically comprises a cylindrical flow reactor through which the mixture flows. This flow reactor, which can also be referred to as a resonance body, is set into vibration by ultrasonic transducers attached to it.
  • the ultrasonic transducers which are designed as piezo actuators, for example, convert electrical energy directly into mechanical kinetic energy, which is transferred from the resonance body to the lubricating oil.
  • the sound power indicates how much energy is introduced into the flow reactor by the ultrasonic transducer.
  • the sound power and the frequency at which the piezo actuators are operated can be adjusted. It has proven to be particularly useful if the flow reactor is made of stainless steel, preferably from the material 1.4404, with a wall thickness of 2 to 6 mm. Because the dwell time in the ultrasonic unit as well as the frequency and sound power can be optimally adapted to the type, number and properties of the additives as well as to the properties of the base oil used using the control device, optimal homogeneity and optimal stability can be achieved while using as little energy as possible. It is also possible to fill the lubricating oil obtained in this way into ready-to-use bottles or corresponding containers without having to let the lubricating oil cool down first.
  • the ultrasonic unit can be arranged between the conveyor device and the inlet. It has been found that a particularly high level of homogeneity and a particularly high level of stability can be achieved if the ultrasonic unit is arranged between the conveyor device and the inlet.
  • - the conveyor line o can have a first branching point and a second branching point, where o the first branching point and the second branching point are connected to one another by a first sub-line and a second sub-line
  • - the ultrasonic unit can have a first sub-unit and a second sub-unit, where o the first sub-unit is arranged in the first sub-line or interacts with it, and o the second sub-unit is arranged in the second sub-line or interacts with it.
  • two sub-units of the ultrasonic unit which act on the mixture, can be connected in parallel. It is also conceivable to connect three or more than three sub-units in parallel.
  • the mixture can either be passed through just one sub-unit or through both sub-units. This allows the volume-specific energy of the sound waves introduced into the mixture to be controlled. It is possible to react flexibly to the desired amount of the medium that is to be processed into lubricating oil.
  • the at least one additive supply line can open into the conveyor line between the outlet and the ultrasonic unit and in particular between the outlet and the conveyor.
  • the equipment outlay can be kept low, among other things because the additive supply line and its corresponding components can be arranged close to the ground and at a short distance from the conveyor line.
  • the additive supply line opens into the conveyor line between the outlet and the conveyor, a certain pre-mixing can already be achieved in the conveyor before the mixture enters the ultrasonic unit.
  • the reaction container can have at least one additive inlet and the at least one additive supply line can be connected to the additive inlet.
  • the additive is not added to the conveyor line, but to the reaction container.
  • This embodiment is particularly suitable if existing devices are to be retrofitted.
  • the lids of reaction vessels often have a large number of connections, at least one of which can be used as an additive inlet. Consequently, the additional effort for retrofitting can be kept to a minimum.
  • a further developed embodiment can be characterized by an agitator being arranged in the reaction vessel. The agitator can be used to achieve additional mixing in addition to the homogenization in the ultrasonic unit.
  • the conveying device can be a gear pump.
  • a gear pump achieves a largely pulsation-free conveying of the medium within the device.
  • gear pumps are well suited to conveying highly viscous media.
  • the gear pump contributes to homogenization, so that the gear pump has a dual function, namely that of conveying and, at least to a certain extent, that of homogenizing.
  • the temperature of the medium usually fluctuates somewhat, at least depending on the time of year, since the storage containers, especially for the base oil, are often outdoors and are not heated.
  • the medium can be brought to a minimum temperature using the temperature control device, which corresponds approximately to the medium's maximum annual temperature.
  • the homogenization process can therefore always be carried out with the same inlet temperature and consequently with the same viscosity, without consuming an unnecessary amount of energy.
  • a viscometer can be arranged in the conveyor line, with which the viscosity of the medium in the conveyor line can be determined. This can in particular be a so-called inline viscometer.
  • the viscosity In order to ensure good homogenization, To achieve the desired viscosity, the viscosity must not be too high. The viscosity depends, among other things, on the temperature, which can be changed using the temperature control device. If, despite the correctly set temperature, the viscosity does not reach the desired value, the temperature can be changed accordingly. Such deviations can be caused, for example, as a result of batch differences in the base oil and/or the additives. In this respect, redundancy can be created in order to carry out the homogenization process reproducibly. Both the kinematic viscosity and the dynamic viscosity can be determined. In a further developed embodiment, the device can have a medium feed line with which the medium can be fed to the reaction vessel and/or the conveyor line.
  • the medium in particular the base oil
  • the device can have a medium discharge line with which the medium can be discharged from the reaction vessel and/or from the conveying line. After homogenization has taken place, the finished lubricating oil can be discharged from the Device can be removed.
  • the lubricating oil can be fed to a further processing device, for example a filling device, with which the lubricating oil is filled into bottles or similar containers.
  • the device can comprise a weighing device for determining the mass of the medium in the reaction vessel. With modern pumps, the volume flows can be set sufficiently precisely so that the mass ratios between the base oil and the additives can be easily determined from the volume flows. Nevertheless, the weighing device can be used to check whether the desired mass ratio is actually present. Redundancy is created, which increases process reliability.
  • a further developed embodiment can be characterized in that the device is arranged on a mobile transport platform.
  • the mobile transport platform can, for example, be a 1 TEU (twenty-foot equivalent unit) or a 1 FEU (fourty foot equivalent unit) standard container.
  • the manufacturer of the device can largely assemble it in its own workshops and test it for functionality and then send it to the customer.
  • the effort required by the customer to commission the device is very low.
  • the device can be made available to the customer on a loan basis, for example so that he can test the device or so that he can produce a special lubricating oil that is only needed in small quantities.
  • the device can have - an additive supply line coupling arranged on the transport platform for connecting an additive storage container to the additive supply line, and/or - a medium supply line coupling arranged on the transport platform for connecting a medium storage container to the medium supply line, and/or - a medium discharge line coupling arranged on the transport platform for connecting a further processing device and/or a medium storage container to the medium discharge line.
  • the device can be put into operation in a very simple manner. Only the relevant storage containers have to be connected to the appropriate couplings. The device can then be put into operation.
  • One embodiment of the invention relates to a method for processing a flowable medium, in particular lubricating oil based on mineral oil or synthetic oil, with a device according to one of the previous embodiments, comprising the following steps: - Operating the conveying device at a volume flow for the medium, so that a residence time for the medium in the ultrasonic unit results, - Operating the ultrasonic unit in such a way that the ultrasonic waves provided by it have a sound power, - Operating the tempering device in such a way that the medium has a kinematic viscosity, wherein - an energy quotient in the range of 25 to 70 W sec 2 mm -2 , in particular between 30 and 60 W sec 2 mm -2 .
  • the energy quotient refers to a single flow through the ultrasonic unit.
  • the medium can be circulated in the device.
  • the total residence time is to be divided by the number of flows through the ultrasonic unit.
  • the residence time in relation to an additive describes how long this additive was exposed to the ultrasonic waves.
  • One implementation of the invention relates to a method for processing a flowable medium, in particular lubricating oil based on mineral oil or synthetic oil, with a device according to one of the preceding claims, comprising the following steps: - operating the conveying device at a volume flow for the medium, so that a residence time for the medium in the ultrasonic unit results, - operating the ultrasonic unit in such a way that the ultrasonic waves provided by it have a sound power and a frequency, - operating the tempering device in such a way that the medium has a kinematic viscosity, wherein - a frequency-energy quotient is in the range of 150 to 350 mm sec -3 W -1 , in particular between 200 and 300 mm sec -3 W -1 .
  • the frequency-energy quotient also applies in the case that a volume unit of the Medium flows through the ultrasonic unit once.
  • the ultrasonic unit is designed in such a way that the frequency of the ultrasound can be adjusted.
  • One embodiment of the invention relates to a computer program product for carrying out a method according to the previously presented embodiment and/or for operating a device according to one of the embodiments discussed above, wherein the computer program product comprises program means for causing a control device to carry out the following steps when the computer program is executed on the control device: - operating the conveying device at a volume flow for the medium, so that a residence time for the medium in the ultrasonic unit results, - operating the ultrasonic unit in such a way that the ultrasonic waves provided by it have a sound power, - operating the tempering device in such a way that the medium has a viscosity, wherein - an energy quotient is in the range of 25 to 70 W sec 2 mm -2 , in particular between 30 and 60 W sec 2 mm -2 .
  • One implementation of the invention relates to the use of a device according to one of the embodiments discussed above for processing a flowable medium, in particular lubricating oil based on mineral oil or synthetic oil.
  • a device according to one of the embodiments discussed above for processing a flowable medium, in particular lubricating oil based on mineral oil or synthetic oil.
  • the technical effects and advantages that can be achieved with the proposed computer program product and the use essentially correspond to those that have been discussed for the present device.
  • this makes it possible to achieve a particularly high level of homogeneity and a particularly high level of stability. Exemplary embodiments of the invention are explained in more detail below with reference to the accompanying drawings.
  • Figure 1 shows a first embodiment of a device according to the invention for processing a flowable medium
  • Figure 2 shows a second embodiment of the device according to the invention for processing a flowable medium
  • Figure 3 shows a third embodiment of the device according to the invention for processing a flowable medium, each based on basic representations.
  • a first embodiment of a device 101 according to the invention for processing a flowable medium is shown in a schematic representation.
  • the device 101 is used below for processing Lubricating oil based on mineral oil or synthetic oil is explained, although the use of the device 101 is not limited to this.
  • the device 101 has a reaction vessel 14 with a first inlet 16, a second inlet 18 and an outlet 20.
  • the first inlet 16 is connected to a medium supply line 22.
  • the medium supply line 22 starts from a first medium storage container 24, which is designed in the manner of a tank, in which a base oil, in particular a mineral oil or a synthetic oil, or other flowable media 12 can be stored.
  • a first medium shut-off valve 26 is arranged in the medium supply line 22, with which the medium supply line 22 can be optionally opened or closed.
  • a first medium conveying device 28, here a gear pump is arranged in the medium supply line 22, with which the medium supply line 22 can be optionally opened or closed.
  • a first medium conveying device 28 here a gear pump, with which the medium 12 can be conveyed along the medium supply line 22 and in particular from the first medium storage container 24 to the reaction container 14.
  • a medium flow measuring device 30 for determining the volume flow of the medium through the medium supply line 22 and a second medium shut-off valve 32 are arranged between the first medium conveying device 28 and the reaction container 14.
  • the second medium shut-off valve 32 can be designed as an electromechanical or pneumatic valve.
  • the outlet 20 of the reaction container 14 is connected to the second inlet 18 by means of a conveying line 34.
  • a tempering device 35 is provided from the outlet 20, with which the gas emerging from the reaction vessel 14 Medium 12 can be brought to a certain temperature.
  • a medium discharge line 38 branches off from the conveying line 34.
  • a third medium shut-off valve 36 and a second medium conveying device 40 are arranged in the medium discharge line 38.
  • the medium discharge line 38 is connected to a further processing device 42 and/or a second medium storage container 44.
  • a fourth medium shut-off valve 46 is provided within the conveying line 34.
  • a first additive feed line 481 and a second additive feed line 482 open into the conveying line 34.
  • the first additive feed line 481 and the second additive feed line 482 are identically constructed and each originate from an additive storage container 501, 502.
  • an additive conveying unit 511, 512, an additive flow measuring device 521, 522 for determining the volume flow of the additives through the first additive feed line 481 or through the second additive feed line 482, and an additive shut-off valve 541, 542 are provided.
  • a conveying device 56 which is designed as a gear pump 57, a conveying line flow measuring device 58 for determining the volume flow V through the conveying line 34, a viscometer 60 for determining the viscosity of the medium in the conveying line 34, and a temperature measuring device 62 for determining the temperature of the medium in the conveying line 34 are arranged in the conveying line 34.
  • first branching point 64 Viewed from the conveyor device 56 along the conveyor line 34, behind the temperature measuring device 62 there is a first branching point 64 with a first branching valve 66, which can be designed as a three-way valve, for example.
  • the conveyor line 34 is divided into a first sub-line 68 and a second sub-line 70 in the first branching point 64.
  • a first sub-unit 72 of an ultrasound unit 76 is arranged in the first sub-line 68 and a second sub-unit 74 in the second sub-line 70, with which it is possible to generate ultrasound waves and to introduce them into the medium 12 flowing through the first sub-line 68 and the second sub-line 70.
  • the first sub-line 68 and the second sub-line 70 come together again in a second branching point 78, in which there is a second branching valve 80, which can also be designed as a three-way valve. Consequently, the medium 12 can flow through the first sub-line 68 or through the second sub-line 70 or through both the first sub-line 68 and the second sub-line 70, or the conveying line 34 can be blocked at the first branching point 64 or the second branching point 78. From the second branching point 78, the conveying line 34 leads to the previously mentioned second inlet 18 of the reaction vessel 14.
  • the device 101 also has a weighing device 82, with which the mass of the medium in the reaction vessel 14 can be determined.
  • the device 101 is provided with a control device 84, which is connected by electrical lines as shown in Figure 1 to some of the previously described Components are connected, whereby a control and/or regulation of the device 101 can be implemented.
  • a wireless connection is also conceivable.
  • the device 101 can be operated in the following way: It is assumed that the first medium storage container 24 is sufficiently filled with medium 12 and the additive storage containers 501, 502 are sufficiently filled with additive A1, A2.
  • a base oil in particular a mineral oil or a synthetic oil, can be used as the medium 12.
  • Cleaning substances, solubilizers, protective film-producing substances, lubricants and the like or prefabricated mixtures can be used as the first additive A1 and the second additive A2.
  • the first medium shut-off valve 26 is opened manually, although opening by means of a corresponding control with the control device 84 is also conceivable.
  • the third medium shut-off valve 36 is closed and the fourth medium shut-off valve 46 is open.
  • the first medium conveying device 28 is now activated and the second medium shut-off valve 32 is opened by means of the control device 84.
  • the medium flow measuring device 30 is used to determine the extent to which the volume flow provided by the first medium conveying device 28 corresponds to the target volume flow.
  • the medium 12 is conveyed into the reaction container 14 until the desired volume is reached there.
  • the weighing device 82 can be used to check whether the desired volume is present in the reaction container 14. If this is the case, the second medium shut-off valve 32 is closed and the first medium conveying device 28 is deactivated.
  • the additive delivery units 511, 512 and the delivery device 56 are activated and the additive shut-off valves 541, 542 are opened, whereby the additive flow measuring devices 521, 522 can be used to check whether the desired volume flows are flowing through the first additive feed line 481 and the second additive feed line 482 into the delivery line 34.
  • the volume flows through the first additive feed line 481 and through the second additive feed line 482 can differ from one another. It is also possible that the volume flow through the first additive feed line 481 or the second additive feed line 482 is zero.
  • the relevant additive shut-off valve 541, 542 can remain closed.
  • the conveying device 56 is also activated.
  • the medium 12 is sucked out of the reaction vessel 14 through the outlet 20.
  • the medium 12 then flows through the temperature control device 35.
  • the volume flow through the conveying line 34 is measured with the conveying line flow measuring device 58.
  • the ratio of the volume flows through the first additive feed line 481 and through the second additive feed line 482 and through the delivery line 34 also determines the mixing or mass ratio between the additives A1, A2 and the medium 12.
  • a certain mixing of the additives A1, A2 in the medium 12 already takes place in the delivery line 34 and mainly in the delivery device 56 designed as the gear pump 57.
  • the viscometer 60 is used to measure the viscosity, here the kinematic viscosity ⁇ of the medium or, if additives are added to the
  • the temperature of the medium or the mixture in the delivery line 34 is determined using a temperature measuring device 62. Since the viscosity depends on the temperature, if the measured viscosity deviates from the desired viscosity, the temperature control device 35 can be controlled accordingly using the control device 84.
  • the measurement of the temperature and the viscosity therefore represents a certain redundancy, which, however, serves to ensure process reliability and can simplify control and/or regulation.
  • the measured values of the temperature and the viscosity can be subjected to a plausibility check, and thus malfunctions of the temperature measuring device 62 and/or the viscometer 60 can be detected and reported accordingly.
  • the volume flow through the delivery line 34 is divided into the first sub-line 68 and the second sub-line 70 depending on the position of the first branching valve 66 and the second branching valve 80.
  • ultrasonic waves with the desired sound power P and the desired ultrasonic frequency are generated by means of the ultrasonic unit 76 and introduced into the mixture of medium 12 and additives, as a result of which the mixture is homogenized.
  • the homogeneity can be influenced.
  • the use of an energy quotient EQ as a guideline has proven to be particularly useful, which is defined as follows:
  • the energy quotient EQ has the unit [W sec 2 mm -2 ] and refers to a single flow through the ultrasonic unit.
  • the residence time T also refers to a single flow through the ultrasonic unit.
  • the volume flow V can be changed so that different residence times T result. It is recommended that the energy quotient EQ and the frequency energy quotient EQf are in the specified range each time a volume unit flows through the ultrasonic unit 76.
  • the mixture then reaches the reaction vessel 14.
  • the mixture can now be conveyed again through the conveyor line 34 and thus circulated.
  • the additive shut-off valves 541, 542 can be closed and the additive conveyor units 511, 512 can be deactivated in order not to change the set ratio between medium 12 and additives.
  • the fourth medium shut-off valve 46 is closed and the third medium shut-off valve 36 is opened.
  • the now completely homogenized mixture of medium 12 and the additives A1, A2, which can then be referred to as lubricating oil, is now fed to the further processing device 42.
  • the second medium conveying device 40 is activated.
  • the lubricating oil can be filled into ready-to-use bottles or the like or stored in the second medium storage container 44.
  • a second embodiment of the device 102 according to the invention is also shown using a basic illustration. The essential components of the device 102 of the second embodiment correspond to those the device 101 of the first embodiment, which is why only the essential differences are discussed below.
  • the reaction vessel 14 has a first additive inlet 881 and a second additive inlet 882, to which the first additive feed line 481 and the second additive feed line 482 are connected. Furthermore, the reaction vessel 14 is provided with an agitator 90.
  • the essential difference in the device 102 according to the second embodiment compared to the device 101 according to the first embodiment is in particular that the medium 12 and the additives A1, A2 are first fed to the reaction container 14 and mixed there using the agitator 90 before the mixture is pumped through the conveyor line 34 with the conveyor device 56 and subjected to ultrasonic waves in the ultrasound unit 76. Otherwise, the mode of operation is essentially the same as that of the device 101 according to the first embodiment.
  • good homogeneity and high stability of the mixture of base oil and additives is achieved when the energy quotient EQ has values between 30 and 60 W sec 2 mm -2 .
  • Figure 3 shows a third embodiment of the device 103 based on a basic representation.
  • the device 103 according to the third embodiment is largely similar to the device 101 according to the first embodiment, but the device 103 according to the third embodiment is arranged on a mobile transport platform 92, which is formed by a container, in particular a 1 TEU (twenty-foot equivalent unit) or a 1 FEU (fourty foot equivalent unit) standard container.
  • Two additive supply line couplings 941, 942 are provided on the transport platform 92 for Connecting an additive storage container 501, 502 to the additive supply lines 481, 482, a medium supply line coupling 96 for connecting a first medium storage container 24 to the medium supply line 22, and a medium discharge line coupling 98 for connecting a further processing device 42 and/or a second medium storage container 44 to the medium discharge line 38.
  • the additive supply line couplings 941, 942, the medium supply line coupling 96 and the medium discharge line coupling 98 can be detachably attached to the container wall so that they can be removed during transport, for example by means of a truck or a ship, so that they do not protrude beyond the containers and collide with adjacent containers.
  • the additive storage containers 501, 502 can be connected to the additive supply line couplings 94, the first medium storage container 24 to the medium supply line coupling 96 and the second medium storage container 44 and/or the further processing device 42 to the medium discharge line coupling 98.
  • the device 103 can then be operated in the manner described above.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lubricants (AREA)
  • Accessories For Mixers (AREA)

Abstract

La présente invention concerne un dispositif de traitement (101, 102, 103) d'un milieu fluide (12), en particulier d'huile minérale ou d'huile synthétique, comprenant une cuve de réaction (14) comprenant au moins une entrée (16, 18) et au moins une sortie (20), une ligne de distribution (34), qui relie la sortie (20) à l'entrée (16, 18), un dispositif de distribution (56), qui est disposé dans la ligne de distribution (34) et est destiné à distribuer le milieu (12) de la sortie (20) à l'entrée (16, 18), au moins une ligne de distribution en additif (481, 482) pour introduire un ou plusieurs additifs (A1, A2) dans le milieu fluide (12), une unité ultrasonore (76), qui est disposée dans la ligne de distribution (34) ou interagit avec la ligne de distribution (34) et est destinée à fournir des ondes ultrasonores et à introduire les ondes ultrasonores dans le milieu fluide (12), et un dispositif de commande (84) pour commander et/ou réguler au moins la sortie de distribution du dispositif d'alimentation (56) ainsi que la fréquence et la puissance sonore (P). La présente invention concerne également un procédé de fonctionnement d'un tel dispositif (101, 102, 103), un programme informatique pour la mise en œuvre d'un tel procédé, et l'utilisation d'un tel dispositif (101, 102, 103) pour traiter un milieu fluide (12).
PCT/EP2024/065946 2023-07-26 2024-06-10 Dispositif de traitement d'un milieu fluide, en particulier d'huile minérale ou d'huile synthétique, et procédé de fonctionnement d'un tel dispositif Pending WO2025021359A1 (fr)

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DE102023119798.3 2023-07-26

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016076A1 (de) 1990-05-18 1991-08-22 Boehringer Ingelheim Kg Verfahren und vorrichtung zur kontinuierlichen duchfuehrung sonochemischer reaktionen
DE4431872C1 (de) 1994-09-07 1996-01-11 Santrade Ltd Anwendung von Ultraschall bei der Verfestigung von Schmelzen oder übersättigten Lösungen auf Förderbändern oder Aufnahmetrommeln
DE10243837A1 (de) 2002-09-13 2004-03-25 Dr. Hielscher Gmbh Verfahren und Durchflusszelle zur kontinuierlichen Bearbeitung von fließfähigen Zusammensetzungen mittels Ultraschall
US20090038932A1 (en) * 2007-08-08 2009-02-12 Battelle Memorial Institute Device and method for noninvasive ultrasonic treatment of fluids and materials in conduits and cylindrical containers
EP1800355B1 (fr) 2004-09-17 2010-12-29 Product Systems Incorporated Procede et appareil de commande et de caracterisation de seuil de cavitation
WO2015156456A1 (fr) * 2014-04-11 2015-10-15 Korea Research Institute Of Standards And Science Appareil et procédé de dispersion et de mélange de fluides par ultrasons focalisés et dispositif d'alimentation en fluide destiné à disperser et mélanger des fluides par ultrasons focalisés
WO2017013424A1 (fr) 2015-07-20 2017-01-26 Hilsonic Process Systems Ltd Processeur à ultrasons
JP2021084067A (ja) * 2019-11-27 2021-06-03 シブヤマシナリー株式会社 固液混合分散システム
JP2021178278A (ja) * 2020-05-12 2021-11-18 冨士高圧フレキシブルホース株式会社 超音波処理装置及び超音波処理方法
GB2607104A (en) * 2021-05-28 2022-11-30 Redlayer Ltd Beverage processing method and apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016076A1 (de) 1990-05-18 1991-08-22 Boehringer Ingelheim Kg Verfahren und vorrichtung zur kontinuierlichen duchfuehrung sonochemischer reaktionen
DE4431872C1 (de) 1994-09-07 1996-01-11 Santrade Ltd Anwendung von Ultraschall bei der Verfestigung von Schmelzen oder übersättigten Lösungen auf Förderbändern oder Aufnahmetrommeln
DE10243837A1 (de) 2002-09-13 2004-03-25 Dr. Hielscher Gmbh Verfahren und Durchflusszelle zur kontinuierlichen Bearbeitung von fließfähigen Zusammensetzungen mittels Ultraschall
EP1800355B1 (fr) 2004-09-17 2010-12-29 Product Systems Incorporated Procede et appareil de commande et de caracterisation de seuil de cavitation
US20090038932A1 (en) * 2007-08-08 2009-02-12 Battelle Memorial Institute Device and method for noninvasive ultrasonic treatment of fluids and materials in conduits and cylindrical containers
WO2015156456A1 (fr) * 2014-04-11 2015-10-15 Korea Research Institute Of Standards And Science Appareil et procédé de dispersion et de mélange de fluides par ultrasons focalisés et dispositif d'alimentation en fluide destiné à disperser et mélanger des fluides par ultrasons focalisés
WO2017013424A1 (fr) 2015-07-20 2017-01-26 Hilsonic Process Systems Ltd Processeur à ultrasons
JP2021084067A (ja) * 2019-11-27 2021-06-03 シブヤマシナリー株式会社 固液混合分散システム
JP2021178278A (ja) * 2020-05-12 2021-11-18 冨士高圧フレキシブルホース株式会社 超音波処理装置及び超音波処理方法
GB2607104A (en) * 2021-05-28 2022-11-30 Redlayer Ltd Beverage processing method and apparatus

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