EP3802400B1 - Système de remplissage de récipients avec un produit de remplissage liquide et machine de remplissage - Google Patents

Système de remplissage de récipients avec un produit de remplissage liquide et machine de remplissage Download PDF

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Publication number
EP3802400B1
EP3802400B1 EP19724472.6A EP19724472A EP3802400B1 EP 3802400 B1 EP3802400 B1 EP 3802400B1 EP 19724472 A EP19724472 A EP 19724472A EP 3802400 B1 EP3802400 B1 EP 3802400B1
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EP
European Patent Office
Prior art keywords
filling
valve device
phase
container
flow path
Prior art date
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Active
Application number
EP19724472.6A
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German (de)
English (en)
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EP3802400A1 (fr
Inventor
Ludwig Clüsserath
Bernd Bruch
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.)
KHS GmbH
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KHS GmbH
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Priority to SI201930605T priority Critical patent/SI3802400T1/sl
Publication of EP3802400A1 publication Critical patent/EP3802400A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • B67C3/28—Flow-control devices, e.g. using valves
    • B67C3/286—Flow-control devices, e.g. using valves related to flow rate control, i.e. controlling slow and fast filling phases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/06—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure
    • B67C3/12—Pressure-control devices

Definitions

  • the invention relates to a filling system for filling containers with a liquid product according to the preamble of patent claim 1.
  • Filling systems and filling machines for filling containers with liquid contents, in particular for pressure filling, are known in various designs.
  • free-jet filling or free-jet filling
  • a filling system or a filling method in which the liquid filling material flows towards the container to be filled from the liquid valve in a free filling jet or filling material jet, with the flow of the filling material not being restricted by guide elements such as e.g. deflector screens, swirl bodies, short or long filling pipes is influenced or changed.
  • Jet filling can be done without pressure or under pressure.
  • the container In the case of pressureless free-jet filling, the container is at ambient pressure, with the container mouth or opening generally not lying against the filling element, but rather being at a distance from the filling element or from a discharge opening provided. If the container mouth is in contact with the filling element during pressureless free jet filling, a gas path establishes a connection between the interior of the container and the environment, which enables pressureless filling.
  • the gas contained in the container and displaced by the beverage flowing into the container also escapes into the environment via this gas path.
  • the container is pressed with its mouth against the filling element and sealed, the pressure inside the container is reduced by applying a clamping gas (inert gas or CO2 gas) or by applying a negative pressure set to this pressure, which deviates from the ambient pressure, which can be both above and below the ambient pressure.
  • a clamping gas inert gas or CO2 gas
  • filling via the container wall In addition to free steel filling, the person skilled in the art is also familiar with filling methods in which the filling material is guided to the inner wall of the container to be filled by guide elements before or during the flow into the container. This procedure ensures that the filling material with reduced foaming in flows into the container. This filling method is also referred to as "filling via the container wall”.
  • a container in a sealed position with the filling element means that the container to be filled is pressed with its container mouth tightly against the filling element or against a seal surrounding the at least one dispensing opening in the manner known to those skilled in the art.
  • the supply of the clamping gas into the respective container and the discharge of the return gas from the respective container can take place via one and the same controlled flow path formed in the filling element, in which a valve device that can be switched to the "open" and/or "closed” switching states is arranged as a control valve.
  • This valve device is then, for example, a component of a pneumatic control valve arrangement and is controlled by a machine control of the filling machine via at least one electrically controllable switching valve.
  • the disadvantage is that with a valve device designed in this way, it is not possible to regulate the volume flow flowing through the valve device in a sufficiently finely adjustable manner during the filling phase.
  • the object of the present invention is therefore to provide a filling system for filling containers with a liquid filling material which, compared to the prior art, enables improved regulation of the volume flow flowing through the valve device during the filling phase.
  • the invention relates to a filling system for filling containers with a liquid filling material, comprising at least one filling material boiler providing the filling material and at least one filling element for the controlled delivery of the filling material into the container arranged in a sealed position on the filling element in a filling phase of the filling , wherein the filling element has a housing in which a liquid channel is formed with a liquid valve having a valve body, the liquid channel being connected via a line to a liquid chamber of the filling material tank. Furthermore, at least one flow path for a liquid and/or gaseous medium is formed in the filling element, with the flow path being connected to the interior of the container to be filled at least during the filling phase.
  • Return gas displaced from the container can preferably be discharged via the flow path at least during the filling phase and/or displaced filling material can be returned to the filling material boiler and/or gas can be supplied from the container via the flow path for inert gas flushing and/or for prestressing the container.
  • the present invention is further characterized in that at least one valve device that can be continuously adjusted between an open and/or closed position is provided at least in the flow path, with a volume flow of the liquid and/or gaseous medium flowing through the flow path being generated by means of the at least one continuously adjustable valve device is continuously controllable and/or adjustable.
  • the gas flows for the following functions can be controlled and/or regulated in a highly flexible manner by the valve device designed according to the invention:
  • the valve device can be used to finely meter the gas flow for flushing at high vacuum in the evacuation phases (also flushing processes under conventional conditions).
  • the rinsing process can also be carried out as a control loop depending on the internal bottle pressure, measured by the pressure sensor in the filling valve.
  • the valve device can be used to control and/or regulate a gas flow during the prestressing phase (for example throttled in the case of sensitive plastic straps).
  • the course of the prestressing can take place according to a predetermined pressure profile.
  • initial product residues in the interior of a corresponding container can be softly removed from a gas pipe and/or return gas pipe by means of the valve device and without atomizing the product in the process. It is well known that product residues atomized during pre-tensioning lead to overfoaming in the residual discharge. After that, the preload can then be continued with a larger volume flow in order to keep the preload time as short as possible.
  • valve device can also be used to control and/or regulate the filling speed by throttling the return gas flow according to a predetermined characteristic curve suitable for a respective beverage and/or container and/or via a control loop with the integration of a flow measurement according to a flow characteristic curve.
  • valve device can also be used to control and/or regulate the product return in a Trinox process by a control circuit via a pressure sensor arranged in the filling valve or control according to a predetermined flow profile.
  • a regulated and/or controlled pressure build-up in the settling phase in the cycle can also advantageously take place by means of the valve device with a pressure reduction via a relief nozzle in the vacuum channel or in a separate relief channel.
  • a pressure reduction via a relief nozzle in the vacuum channel or in a separate relief channel By reducing the pressure below the saturation pressure, gas bubbles form in the drink, which rise to the surface and form foam. The formation of foam on the surface can be greatly limited by a short-term controlled increase in pressure.
  • the relief pressure can then be lowered again. This process can also be repeated several times.
  • the process can also be additionally or alternatively controlled and/or regulated via the pressure sensor arranged in the filling valve.
  • the valve device can also advantageously be used to flush the headspace from a separate inert gas channel according to a flow profile and/or via pressure regulation during a filling process without evacuation and/or ending the filling process via the electrical filling level signal using a hollow probe. Head space flushing from the ring bowl or a separate gas channel connected to it into the atmosphere and/or the vacuum channel is also possible.
  • valve device can also be used in a volumetric pressure filling system for carbonated soft drinks.
  • the valve device can also control and/or regulate the prestressing process, the filling speed and the calming and relieving process there.
  • the at least one valve device is designed as a continuously adjustable control valve which can be controlled between the open and/or closed position in any desired intermediate position as a permissible operating position.
  • the at least one valve device is designed as a control valve that can be continuously actuated magnetically and/or electrically and/or pneumatically between the open and/or closed position.
  • the valve device is provided in a first partial flow path of the flow path, the first partial flow path extending from a gas space of a filling material boiler via a return gas pipe into the interior of the container.
  • valve device is provided in the transition region of a return gas pipe to a flexible line, in particular on a support arm.
  • valve device is provided between a free space formed above the gas pipe and the flow path leading into the ring bowl.
  • the filling system has at least the valve device and at least one additional valve device, with the at least one additional valve device being provided in the flow path between the interior of the container and the annular channel.
  • At least one pressure sensor is assigned to the flow channel, which forms a control circuit, in particular a pressure control circuit, with the valve device and/or a further valve device, by means of which a flushing phase and/or preload phase and/or filling phase and/or evacuation phase and/or or the settling phase and/or relief phase can be controlled and/or regulated, the valve device and/or the further valve device forming an actuator in the control loop, in particular in the pressure control loop.
  • the filling system is designed to control and/or regulate the relief phase via preselectable pressure characteristics with the involvement of the pressure control circuit, in such a way that after a reduction in the internal pressure in the liquid Filled container by means of the continuously adjustable valve device and / or the additional valve device, the absolute pressure in the remaining headspace of the container is increased via the flow path again.
  • valve device and/or the further valve device forms the control circuit, in particular a volume flow control circuit, with a flow meter assigned to a line, by means of which a flushing phase and/or preload phase and/or filling phase and/or calming phase and/or the relief phase can be controlled and/or regulated, the valve device and/or the further valve device forming an actuator in the control circuit, in particular in the volume flow control circuit.
  • the filling system is designed to, at least during the filling phase, reduce the filling speed by throttling the return gas flowing back via the flow path via the valve device and/or the further valve device to control and/or regulate the specified opening profile for the valve device and/or the further valve device.
  • the filling system is designed to control the filling speed, at least during the filling phase, by throttling the return gas flowing back via the flow path via the valve device and/or the additional valve device according to a preselected volume flow profile with the integration of the volume flow control circuit and/or to regulate.
  • the filling level can be controlled and/or regulated with the integration of the pressure control circuit by means of the continuously adjustable valve device and/or the further valve device as an actuator.
  • the filling level can be controlled and/or regulated with the integration of the pressure control circuit by means of the continuously adjustable valve device and/or the additional valve device as an actuator.
  • the flushing phase is designed as a control circuit dependent on the internal container pressure, the internal container pressure being detectable by means of the at least one pressure sensor in the filling element and forming a control parameter.
  • the flow path is formed in a return gas pipe that extends into the container during the filling phase, via which return gas displaced during the filling phase by the filling material flowing into the interior of the container into the filling material boiler or into a separate one connected to the filling material boiler ring channel or in a separate ring channel connected to the filling material tank via a pressure control and/or filling material is displaced into the filling material tank at the end of the filling phase to set a target filling level from the headspace of the initially overfilled container.
  • the return gas pipe is passed through a housing of the filling element in an axially displaceable manner, with an open end of the return gas pipe being designed as a lateral opening within the housing, which opens into a lock chamber.
  • the lock chamber can be connected via a gas channel system both to the ring channel and, with the interposition of a second control valve, to a liquid channel in such a way that the lock chamber can be filled with inert gas and/or a Negative pressure and / or a vacuum can be applied.
  • substantially or “approximately” in the context of the invention means deviations from the exact value in each case by +/-10%, preferably by +/-5% and/or deviations in the form of changes that are insignificant for the function.
  • aspects have been described in connection with a filling machine, it is understood that these aspects also represent a description of the corresponding filling process, so that a block or a component of a device is also to be understood as a corresponding process step or as a feature of a process step .
  • aspects described in connection with or as a method step also constitute a description of a corresponding block or detail or feature of a corresponding device.
  • Some or all of the method steps may be performed by hardware apparatus (or using a hardware apparatus) such as B. a microprocessor, a programmable computer or an electronic circuit. In some embodiments, some or more of the essential process steps can be performed by such an apparatus.
  • Generally designated 1 filling system is part of a filling machine rotating type for filling a liquid product in bottles 2 or similar containers.
  • the filling system 1 can be designed in particular for free steel filling and/or filling via the container wall and/or for long tube filling.
  • the filling system 1 includes this, inter alia, filling elements 1.1, of which in the 1 only one filling element 1.1 is shown and which are provided at equal angular intervals on the circumference of a rotor 4 of the filling machine which can be driven to rotate about a vertical machine axis MA.
  • a filling material tank 5 common to all filling elements 1.1, which is designed for example as a ring tank and is partially filled with the filling material during the filling operation up to a predetermined level in a level-controlled manner.
  • An upper gas space 5.1 and a lower liquid space 5.2 are thus formed in the filling material boiler 5 during the filling operation.
  • the gas chamber 5.1 is pressure-controlled with an inert gas (CO2 gas) which is under a filling pressure.
  • CO2 gas inert gas
  • the liquid filling material is fed to the filling material boiler 5 in a controlled manner via a supply line, not shown in detail.
  • the ring channels 30 and 40 can fulfill different functions depending on the filling method.
  • the ring channel 30 for guiding the inert gas under pressure in particular as a Trinox gas channel or pressurized gas channel, and/or the ring channel 40 can be designed as a vacuum channel for evacuating or relieving the pressure on the container 2 .
  • a liquid channel 7 is formed, which is connected via a line 8 to the liquid chamber 5.2 of the boiler 5.
  • the line 8 can be assigned a flow meter 8.1, by means of which the volume flow of liquid filling material supplied via the line 8 to the liquid channel 7, ie the filling material quantity per unit of time, can be detected.
  • a liquid valve 9 is provided in the liquid channel 7, specifically for the controlled dispensing of the liquid filling material via an annular dispensing opening 10 concentrically surrounding a vertical filling element axis FA, which is formed on the underside of the filling element 1.1 by the open end of the liquid channel 7 there.
  • a centering bell 11 with a seal 12 is provided on the dispensing opening 10, which encloses the dispensing opening 10 in the form of a ring and against which the respective container 2 is pressed with its container mouth 2.1 during filling, in particular also during pressure filling, i. H. in tight position.
  • the liquid valve 9 consists essentially of a valve body 9.1 arranged in the liquid channel 7, which interacts with a valve seat formed on the inner surface of the liquid channel 7.
  • the valve body 9.1 is provided or formed on a valve or gas tube 13 which is arranged coaxially with the filling element axis FA and is open at both ends, which at the same time serves as a valve tappet for actuating the liquid valve 9 and for this purpose interacts with an actuating device 14, which is only indicated schematically the gas pipe 13 and thus the valve body 9.1 for opening and closing the liquid valve 9 can be moved axially by a predetermined stroke in the filling element axis FA.
  • the lower, open end of the gas pipe 13 protrudes through the discharge opening 11 beyond the underside of the housing 6 and thus extends into the interior of the container 2 with this end during filling. With its upper end, which is also open, the gas tube 13 extends into a closed gas space 15 .
  • the corresponding filling element 1.1 of the filling system 1 can have a return gas pipe 16 arranged coaxially with the filling element axis FA and determining the filling level in the respective container 2, which can be designed as a Trinox pipe and which extends through the gas pipe 13 and with its lower End of the lower open end of the gas tube 13 protrudes.
  • the filling element 1.1 has the return gas pipe 16, which is arranged on the same axis as the filling element axis FA, is open at both ends and is surrounded by the gas pipe 13 at a distance and which, as an element that determines the filling level, also extends with its end 16.1 during the filling operation into the upper area or head space of the container 2 extends in and over the lower end of the gas tube 13 protrudes.
  • the return gas pipe 16 is passed through the housing 6 of the filling element 1.1, protrudes with an upper length over the top of the housing 6 and is held there with the same open end 16.2 on a support arm 18 of an adjusting device 19.
  • the adjustment device 19 is designed to move the support arm 18 including the return gas pipe 16 held on it, i.e. fixedly arranged, to move axially along the filling element axis FA, in particular to raise and lower it, preferably in the manner described in more detail below, in each case from an upper starting or lifting position downwards for the setting of different Fill levels during the filling process of the filling element 1.1.
  • the upper end 16.2 of the return gas pipe 16 is connected via a flexible line 25 to the gas space 5.1 of the filling material boiler 5.
  • the return gas pipe 16 can be designed as a probe ( Figures 8a to 8c ) and an inner tube embodied as a hollow probe 16.3 and an outer tube which is electrically insulated from the inner tube and also embodied as a hollow probe 16.4.
  • the respective upper ends 16.2 of the two hollow probes 16.3 and 16.4 are also accommodated in the carrier 18 so that they are electrically insulated from one another and can be connected to different poles of an energy supply device (not shown).
  • the lower end 16.1 of the hollow probe 16.4 designed as an outer tube forms the measure for the fill level, in that when liquid filling material reaches the same level, an electrical short circuit can be generated between the outer and inner tube via the fill level and thus a signal for closing the product valve 9 can be generated.
  • the return gas pipe 16 can be guided through a protective or lock space 22 formed in the housing 6 before it exits on the upper side of the housing 6, which in the illustrated embodiment is formed in the shape of a circular cylinder concentrically to the filling element axis FA and has an axial length in relation to the filling element axis FA which is at least equal to the maximum adjustment stroke by which the return gas tube 16 is moved between the "maximum fill level” setting and the "minimum fill level” setting.
  • At least one flow path 20 for a liquid and/or gaseous medium is formed in the filling element 1.1, the flow path 20 being connected to the interior of the container 2 to be filled at least during the filling phase.
  • Return gas displaced from container 2 can preferably be discharged via flow path 20, at least during the filling phase, and/or displaced filling material can be returned to filling material boiler 5 and/or gas can be fed from container 2 via flow path 20 for flushing with inert gas /or be designed as a gas channel system.
  • the flow path 20 can comprise a first and a second partial flow path 20.1 and 20.2.
  • At least the interior of the container 2 can be connected via the return gas pipe 16 to the gas space 5.1 of the filling material boiler 5 by means of the first partial flow path 20.1, at least during the actual filling phase and with the interposition of at least one valve device 26.
  • the interior is preferably also connected by means of the second partial flow path 20.2 of the container 2 via the gas pipe 13 with the interposition of a first control valve SV1, which is designed as an "open” and "closed” valve, i.e. a control valve with two possible stationary permissible operating states, namely an "open” operating state and a "closed” operating state , With the ring channel 30 connectable.
  • the flow path 20 with its two partial flow paths 20.1, 20.2 extends from the annular channel 30 via the first control valve SV1 into the container interior and from there via the return gas pipe 16 and the valve device 26 into the gas space 5.1 of the filling material boiler 5.
  • flow path 20 can include a first partial flow path 20.1, by means of which the interior of container 2 can be connected via return gas pipe 16 to gas space 5.1 of filling material boiler 5, and a second partial flow path 20.2, which runs between the outer surface of return gas pipe 16 and the inner surface of the gas pipe 13, which is open at the lower end of the gas pipe 13 and at the upper end of the gas pipe 13 is connected to the gas chamber 15 in the manner described in more detail below and by means of which the interior of the container 2 can be reached via the gas pipe 13 below Interposition of the first control valve SV1 with the annular channel 30 is connected.
  • gas paths or gas channel systems can be formed, which have a plurality of controlled gas paths with an associated second control valve SV2, which is designed in the same way as the first control valve SV1.
  • a further gas channel system connecting the ring channel 40 (vacuum) via the second control valve SV2 to the flow path 20 can be provided, as is described in more detail in FIG figures 2 is shown.
  • This additional gas channel system can also be used instead of using a second control valve SV2 ( figure 1 ) also with two second control valves SV2 ( figure 2 ) be trained.
  • This further gas duct system is known to the person skilled in the art in terms of structure and functioning.
  • At least one valve device 26, 27, which can be continuously adjusted between an open and/or closed position, is provided at least in the flow path 20, by means of which a volume flow of the liquid and/or gaseous medium flowing through the flow path 20 can be continuously controlled and/or or is adjustable.
  • the open position is understood to mean that operating position of the valve device 26, 27 in which the maximum possible volume flow of a liquid and/or gaseous medium per unit of time flows through the valve device 26, 27, while the closed position is understood to mean that operating position at which is the volume flow that flows through the valve device 26, 27 is equal to zero.
  • the at least one valve device 26, 27 can be designed as a continuously adjustable control valve that can be controlled between the "open" and/or "closed” operating positions (i.e. open position and/or closed position) in any intermediate position as a permissible operating position and thus is adjustable, steplessly. Any of these intermediate positions can also be controlled as permissible stationary operating positions.
  • the at least one valve device 26, 27 can be designed as a control valve that can be continuously actuated magnetically and/or electrically and/or pneumatically between the open and/or closed position.
  • the valve device 26 can preferably be provided at the upper end 16.2 of the return gas pipe 16 in the first partial flow path 20.1 of the flow path 20, in particular in the transition region of the return gas pipe 16 to the flexible line 25.
  • the upper end 16.2 of the return gas pipe 16 is therefore above the on the support arm 18 provided valve device 26 and the flexible line 25 connected to the gas chamber of the liquid tank 5 5.2.
  • At least one pressure sensor DS for detecting the pressure conditions prevailing in the flow channel 20 is also assigned to the flow channel 20 .
  • the pressure sensor DS can advantageously be designed to record the absolute pressure conditions.
  • the valve device 26 forms a control circuit RK, in particular a pressure control circuit DRK, by means of which a flushing phase and/or pretensioning phase and/or filling phase and/or evacuation phase and/or settling phase and/or relief phase can be controlled and/or regulated , wherein the valve device 26 forms an actuator in the control circuit RK, in particular in the pressure control circuit DRK ( figure 4 ).
  • the control circuit RK can interact with a machine controller responsible for the filling system 1 or be controlled by it.
  • the pressure sensor DS can be arranged on the housing 6 of the filling element 1.1 or integrated into this (housing 6). Furthermore, the pressure sensor DS can be provided in such a way that the pressure conditions in the flow channel 20, advantageously in the second partial flow path 20.2 between the gas chamber 15 and the first control valve SV1, can be detected by means of the pressure sensor DS.
  • the ACTUAL pressure values detected by the pressure sensor DS are preferably transmitted to the machine controller and compared with the SET pressure values stored there, and based on this, the valve device 26 is activated as an actuator.
  • the pressure sensor DS supplies the control parameter of the controlled variable for the pressure control circuit DRK.
  • the filling system 1 can be designed to control and/or regulate the relief phase via preselectable pressure characteristics with the integration of the pressure control circuit DRK, in such a way that after a reduction in the internal pressure in the container 2 filled with liquid filling material, the adjustable valve device 26, the absolute pressure in the remaining headspace of the container 2 is increased again via the flow path 20. In this way, foam formation due to rising gas bubbles can be reduced.
  • the absolute pressure in the remaining head space of the container 2 can be lowered during the relief phase in such a way that bubbles form in the filled liquid inside the container 2 .
  • the absolute pressure in the container 2 can be approached or controlled briefly in the range of the saturation pressure or slightly above it. This greatly reduces the formation of foam at the moment when the bubbles burst on the surface within the contents of the container 2 in a particularly advantageous manner.
  • valve device 26 can advantageously form a control circuit RK with the flow meter 8.1, in particular a volume flow control circuit VRK, by means of which a flushing phase and/or preload phase and/or filling phase and/or evacuation phase and/or settling phase and/or relief phase can be controlled and/or or is controllable, with the valve device 26 forming an actuator in the control circuit RK, in particular in the volume flow control circuit VRK. ( figure 6 ).
  • the control circuit RK can interact with a machine controller responsible for the filling system 1 or be controlled by it.
  • the ACTUAL volume flow values recorded by the flow meter 8.1 are recorded in the line 8 and transmitted to the machine controller and compared with the SET volume flow values stored there, and the valve device 26 is activated as an actuator on this basis.
  • the flow meter 8.1 supplies the control parameter of the controlled variable for the volume flow control circuit VRK.
  • the regulation of the filling speed i.e. the volume flow of liquid filling material flowing into the container 2 to be filled, is carried out by throttling the return gas flowing back via the flow path 20 via the valve device 26 according to a defined opening profile for the valve device 26 he follows.
  • the regulation of the filling speed i.e. the volume flow of liquid filling material flowing into the container 2 to be filled, is carried out by throttling the return gas flowing back via the flow path 20 via the valve device 26 according to a preselected volume flow profile, involving the Volume flow control circuit VKR takes place.
  • the filling material boiler 5 is partially filled. From its gas space 5.1 there is a connection to the ring channel 30 in some filling phases, which can be designed in particular as a pressurized gas channel. However, these filling phases can also be implemented with a filling material boiler 5 completely filled with liquid filling material if this has an independent pressure control. In such a case, the annular channel 30 designed as a clamping gas channel also requires an independent pressure control, in particular an independent gas pressure control, which regulates the filling pressure as a reference variable and the clamping pressure to approximately the same pressure level. It is also conceivable to form the clamping pressure as a guide pressure and to track the filling pressure.
  • figure 11 shows a further embodiment of the invention, in which different from the embodiment of the figure 1 no return gas pipe 16 is provided within the gas pipe 13 .
  • the interior of the container 2 can be connected to the ring channel 30 via the gas pipe 13 with the interposition of the steplessly controllable valve device 26 designed according to the invention.
  • the valve device 26 is provided between a gas space 15 formed above the gas pipe 13 and the flow path 20 leading into the annular channel 30 .
  • the further embodiment variant shown can also be provided in such a way that the pressure conditions in the gas chamber 15 can be detected by means of the pressure sensor DS.
  • valve device 27 in addition to the continuously variable valve device 26 .
  • the valve device 26 and the valve device 27 are preferably constructed in the same way, each as an infinitely variable control valve which can be controlled between the open and/or closed position in any desired intermediate position as a permissible operating position.
  • the at least one additional valve device 27 is also provided in flow path 20 and can be continuously adjusted between an open and/or closed position, with the at least one additional valve device 27 also continuously controlling a volume flow of the liquid and/or gaseous medium flowing through flow path 20 - and/or is adjustable.
  • the at least one further valve device 27 is provided in the flow path 20 between the interior of the container 2 and the annular duct 30 designed as a pressurized gas duct, i.e. in particular in the second partial flow path 20.2 of the flow path 20.
  • At least one pressure sensor DS is assigned to the flow channel 20, which forms a control circuit RK, in particular a pressure control circuit DRK, with the valve devices 26 and 27, by means of which a flushing phase and/or pretensioning phase and/or filling phase and/or evacuation phase and/or or the calming phase and/or relief phase can be controlled and/or regulated, with the valve devices 26 and 27 each forming an actuator in the control circuit RK, in particular in the pressure control circuit DRK.
  • the filling system 1 is designed to control and/or regulate the relief phase via preselectable pressure characteristics with the integration of the pressure control circuit DRK, in such a way that after a reduction in the internal pressure in the liquid filling material filled container 2 by means of the continuously adjustable valve devices 26 and 27, the absolute pressure in the remaining headspace of the container 2 is increased again via the flow path 20.
  • the filling system 1 is designed to control and/or regulate the filling speed at least during the filling phase by throttling the return gas flowing back via the flow path 20 via the valve devices 26 and 27 according to a defined opening profile for the valve devices 26 and 27.
  • the filling level can be controlled and/or regulated with the integration of the pressure control circuit DKR by means of the continuously adjustable valve devices 26 and 27 as an actuator.
  • the filling level can be designed to be controllable and/or adjustable with the integration of the pressure control circuit DKR by means of the steplessly adjustable valve devices 26 and 27 as an actuator.
  • the flushing phase can be designed as a control loop RK dependent on the internal container pressure, the internal container pressure being detectable by means of the at least one pressure sensor DS in the filling element 1.1 and forming a control parameter.
  • the flow path 20 is formed in a return gas pipe 16 that extends into the container 2 during the filling phase, via which return gas displaced during the filling phase by the filling material flowing into the interior of the container into the filling material boiler 5 or into a container connected to the filling material boiler 5 connected separate ring channel 30, 40 or into a separate ring channel 30, 40 connected to the filling material tank 5 via a pressure control and/or at the end of the filling phase, filling material is displaced from the head space of the initially overfilled container 2 into the filling material tank 5 in order to set a target filling level.
  • valve device 26 is not assigned to the support arm 18, but also, like the further valve device 27, is provided in or on the housing 6.
  • the first partial flow path 20.1 of the flow path 20 is connected from the interior of the container 2 via the return gas pipe 16 with the interposition of the valve device 26 to the gas space 5.1 of the filling material boiler 5.
  • the return gas pipe 16 is guided upwards through the housing 6 of the filling element 1.1 and protrudes with the upper length over the top of the housing 6, but the upper, open end 16.2 is still inside the housing 6 as a formed lateral opening, which opens into the lock chamber 22, which is sealed by an upper and lower seal 28.1, 28.2.
  • the return gas pipe 16 is guided in an axially displaceable manner on the seals 28.1, 28.2, which are designed in particular as ring seals.
  • the first partial flow path 20.1 leads from the lateral opening 16.2 into the lock space 22 and from there via the valve device 26 and the flexible line 25 into the gas space 5.1 of the filling material boiler 5.
  • FIG 14 Another embodiment of the filling system 1 according to the invention is shown, which is essentially like the embodiment of FIG figure 12 is constructed, but has a lock chamber 22 that can be controlled separately by means of the second control valve SV2 and an independent gas channel system 29 .
  • the gas channel system 29 connects the lock chamber 22 with the ring channel 30 on the one hand and the liquid channel 7 with the interposition of the second control valve SV2 on the other side in such a way that the lock chamber 22 is closed by means of the second control valve SV2 in the cleaning and/or sterilization phase can be controlled, in particular can be acted upon with interart gas.
  • the lock chamber 22 can be in fluid communication with the annular channel 40 designed as a vacuum channel during the cleaning and/or sterilization phase. Leakages from the interior of the valve are thus always discharged in the direction of the ring channel 40 and a possible source of contamination with microorganisms is prevented.
  • figure 2 shows a container 2 raised in a sealing position against the filling element 1.1, which container mouth is pressed tightly against the centering bell 11.
  • the liquid filling material flows when the liquid valve 9 is open to the interior of the filling element 1.1, which is held in a sealed position and filled with the inert gas ( figures 4 and 5 ) biased container 2 too.
  • the inert gas displaced by the filling material from the container 2 is conducted via the return gas pipe 16, the open valve device 26 and the line 25 into the gas space 5.1 of the filling material boiler 5 ( figure 7 ).
  • the inflow of the filling material into the container 2 is terminated when the lower, open end 16.1 of the return gas pipe 16 is immersed in the filling material level of the filling material that has entered the container 2 and a state of equilibrium between the height of the filling material level in the filling material tank is reached 5 and the filling material column forming in the return gas pipe 16 has set.
  • the level of the lower end 16.1 thus determines the filling level of the filling material in the respective container 2.
  • the filling level desired in each case is set at the beginning of the filling operation by axial adjustment of the return gas pipe 16 (adjustment stroke), for example for all filling elements 1.1.
  • Trinox filling method is also possible with the filling element 1.1, in which in turn the return gas pipe 16 or its end 16.1 determine the filling level ( figure 9 ).
  • the container 2 which is prestressed and arranged in a sealed position on the filling element 1.1, is deliberately overfilled, i. H. a filling beyond the desired filling level, namely with the liquid valve 9 open and the valve device 26 closed, the inert gas being displaced from the interior of the container 2 by the filling material flowing in during the filling, e.g. B. is displaced into the ring channel 30 via the second partial flow channel 20.2 formed between the gas tube 13 and the return gas tube 16 and from there via the open first control valve SV1.
  • the headspace of the container 2 not occupied by the filling material is pressurized, for example via the first control valve SV1, which is still open.
  • the valve device 26 filling material is fed back from the overfilled container 2 into the filling material boiler 5 via the return gas pipe 16, the opened valve device 26 and the line 25 until the lower end 16.1 of the return gas pipe 16 is outside the filling material in the container 2.
  • the container 2 is withdrawn from the filling element 1.1.
  • the filling level desired in each case is set by the axial adjustment of the return gas pipe 16 (adjustment stroke), namely on all filling elements 1.1 of the filling machine 1.
  • the regulation of the filling level ie the filling level adjustment of bulky filling material in a container 2 to be filled, takes place according to a defined opening profile for the valve device 26 .
  • the filling level is regulated, i.e. the filling height is adjusted for bulky filling material in a container 2 to be filled, involving the pressure control circuit DKR by means of the continuously adjustable valve device 26 as an actuator.
  • the steplessly controllable and/or adjustable valve device 26 can be designed in such a way that a fine dosing of the inert gas flow takes place during the rinsing phase preceding the filling phase with a high vacuum in the evacuation phases.
  • the rinsing phase or the rinsing process is designed as a control loop RK depending on the internal container pressure, the internal container pressure being detectable by means of the at least one pressure sensor DS in the filling element 1.1 and forming a control parameter.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Claims (17)

  1. Système de remplissage pour le remplissage de récipients (2) avec un produit de remplissage liquide, comprenant au moins une cuve de produit de remplissage (5) fournissant le produit de remplissage ainsi qu'au moins un élément de remplissage (1.1) pour la distribution commandée du produit de remplissage dans le récipient (2) agencé en position étanche au niveau de l'élément de remplissage (1.1) dans une phase de remplissage du remplissage, dans lequel l'élément de remplissage (1.1) présente un boîtier (6), dans lequel un canal de liquide (7) est réalisé, lequel est en liaison par le biais d'une conduite (8) avec un espace de liquide (5.2) de la cuve de produit de remplissage (5),
    et dans lequel une soupape de liquide (9) composée d'un corps de soupape (9.1) est prévue dans le canal de liquide (7) pour la distribution commandée du produit de remplissage par le biais d'une ouverture de distribution (10) annulaire entourant concentriquement un axe d'élément de remplissage (FA) vertical qui est formée au niveau du côté inférieur de l'élément de remplissage (1.1) de l'extrémité ouverte qui s'y trouve du canal de liquide (7), dans lequel le corps de soupape (9.1) coopère avec un siège de soupape réalisé au niveau d'une surface intérieure du canal de liquide (7),
    et dans lequel dans l'élément de remplissage (1.1), au moins une voie d'écoulement (20) pour un milieu liquide et/ou gazeux est réalisée, laquelle est en liaison au moins pendant la phase de remplissage avec un espace intérieur du récipient (2) à remplir,
    dans lequel au moins dans la voie d'écoulement (20), au moins un dispositif de soupape (26, 27) réglable en continu entre une position ouverte et/ou fermée est prévu, dans lequel au moyen d'au moins un dispositif de soupape (26, 27) réglable en continu, un courant volumique traversant la voie d'écoulement (20) du milieu liquide et/ou gazeux peut être commandé et/ou régulé en continu, caractérisé en ce qu'au canal d'écoulement (20) est associé au moins un capteur de pression (DS), lequel réalise avec le dispositif de soupape (26) et/ou un autre dispositif de soupape (27) un circuit de régulation (RK), en particulier un circuit de régulation de pression (DRK), au moyen duquel une phase de rinçage et/ou une phase de précontrainte et/ou une phase de remplissage et/ou une phase d'évacuation et/ou une phase de stabilisation et/ou une phase de décharge peut être commandée et/ou régulée, dans lequel le dispositif de soupape (26) et/ou l'autre dispositif de soupape (27) réalise un organe de réglage dans le circuit de régulation (RK) en particulier dans le circuit de régulation de pression (DRK).
  2. Système de remplissage selon la revendication 1, caractérisé en ce que l'au moins un dispositif de soupape (26, 27) est réalisé comme soupape de régulation réglable en continu, qui est commandable entre la position ouverte et/ou fermée dans chaque position intermédiaire quelconque comme position de fonctionnement autorisée.
  3. Système de remplissage selon la revendication 1 ou 2, caractérisé en ce que l'au moins un dispositif de soupape (26, 27) est réalisé comme soupape de régulation commandable en continu par voie magnétique et/ou électrique et/ou pneumatique entre la position ouverte et/ou fermée.
  4. Système de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins un dispositif de soupape (26) est prévu dans une première voie d'écoulement partiel (20.1) de la voie d'écoulement (20), dans lequel la première voie d'écoulement partiel (20.1) s'étend d'un espace de gaz (5.1) de la cuve de produit de remplissage (5) par le biais d'un tube de gaz de retour (16) dans l'espace intérieur du récipient (2).
  5. Système de remplissage selon la revendication 4, caractérisé en ce que l'au moins un dispositif de soupape (26) est prévu dans la zone de transition du tube de gaz de retour (16) à une conduite flexible (25), en particulier au niveau d'un bras porteur (18).
  6. Système de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de remplissage (1) présente au moins le dispositif de soupape (26) ainsi qu'au moins l'autre dispositif de soupape (27), dans lequel l'au moins un autre dispositif de soupape (27) est prévu dans la voie d'écoulement (20) entre l'espace intérieur du récipient (2) et un canal annulaire (30) réalisé comme canal de gaz de serrage.
  7. Système de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de remplissage (1) est réalisé afin de commander et/ou de réguler la phase de décharge par le biais de lignes caractéristiques de pression présélectionnables en intégrant le circuit de régulation (RK) réalisé comme circuit de régulation de pression (DRK), et ce de telle manière qu'après une diminution de la pression interne dans le récipient (2) rempli de produit de remplissage liquide au moyen du dispositif de soupape (26) réglable en continu et/ou de l'autre dispositif de soupape (27), la pression absolue soit de nouveau augmentée dans l'espace de tête restant du récipient (2) sur la voie d'écoulement (20).
  8. Système de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de soupape (26) réalise avec un débitmètre (8.1) associé à la conduite (8), le circuit de régulation (RK), en particulier un circuit de régulation de courant volumique (VRK), au moyen duquel la phase de rinçage et/ou la phase de précontrainte et/ou la phase de remplissage et/ou la phase de stabilisation et/ou la phase de décharge peut-être commandée et/ou régulée, dans lequel en particulier le dispositif de soupape (26) et/ou l'autre dispositif de soupape (27) réalise un organe de réglage dans le circuit de régulation de courant volumique (VRK).
  9. Système de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de remplissage (1) est réalisé afin de commander et/ou de réguler au moins pendant la phase de remplissage la vitesse de remplissage par étranglement du gaz de retour refluant sur la voie d'écoulement (20) par le biais du dispositif de soupape (26) selon un profil d'ouverture fixé pour le dispositif de soupape (26).
  10. Système de remplissage selon la revendication 6, caractérisé en ce que le système de remplissage (1) est réalisé afin de commander et/ou de réguler l'autre dispositif de soupape (27) selon un profil d'ouverture fixé pour le dispositif de soupape (27).
  11. Système de remplissage selon l'une quelconque des revendications précédentes 1 à 8, caractérisé en ce que le système de remplissage (1) est réalisé afin de commander et/ou de réguler au moins pendant la phase de remplissage la vitesse de remplissage par étranglement du gaz de retour refluant sur la voie d'écoulement (20) par le biais du dispositif de soupape (26) et/ou de l'autre dispositif de soupape (27) selon un profil de courant volumique préchoisi en intégrant le circuit de régulation (RK) réalisé comme circuit de régulation de volume (VRK).
  12. Système de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins pendant une phase de remplissage de Trinox, le niveau de remplissage est commandable et/ou régulable en intégrant le circuit de régulation (RK) réalisé comme circuit de régulation de pression (DRK) au moyen du dispositif de soupape (26) réglable en continu et/ou de l'autre dispositif de soupape (27) comme organe de réglage.
  13. Système de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce que la phase de remplissage est réalisée comme circuit de régulation (RK) en fonction de la pression interne de récipient, dans lequel la pression interne de récipient est détectable au moyen du capteur de pression (DS) dans l'élément de remplissage (1.1) et réalise un paramètre de régulation.
  14. Système de remplissage selon la revendication 4 et éventuellement l'une quelconque des revendications précédentes restantes, caractérisé en ce que la voie d'écoulement (20) est réalisée dans un tube de gaz de retour (16) parvenant pendant la phase de remplissage dans le récipient (2), par le biais duquel pendant la phase de remplissage, du gaz de retour refoulé par le produit de remplissage s'écoulant vers l'espace intérieur de récipient est refoulé dans la cuve de produit de remplissage (5).
  15. Système de remplissage selon la revendication 4 et éventuellement l'une quelconque des revendications précédentes restantes, caractérisé en ce que le tube de gaz de retour (16) est passé par le boîtier (6) de l'élément de remplissage (1.1) de manière coulissante axialement vers le haut, dans lequel une extrémité ouverte (16.2) du tube de gaz de retour (16) est réalisée à l'intérieur du boîtier (6) comme ouverture latérale qui débouche dans un espace de sas (22).
  16. Système de remplissage selon les revendications 6 et 15, caractérisé en ce que l'espace de sas (22) peut être relié par le biais d'un système de canal de gaz (29) non seulement au canal annulaire (30) réalisé comme canal de gaz de serrage et en intercalant une seconde soupape de commande (SV2) au canal de liquide (7) de telle manière que l'espace de sas (22) puisse être alimenté pendant la phase de nettoyage et/ou de stérilisation en gaz inerte.
  17. Système de remplissage selon l'une quelconque des revendications précédentes avec une pluralité d'éléments de remplissage (1.1) prévus au niveau d'une périphérie d'un rotor (4) entraînable en périphérie autour d'un axe de machine (MA) vertical.
EP19724472.6A 2018-05-30 2019-05-15 Système de remplissage de récipients avec un produit de remplissage liquide et machine de remplissage Active EP3802400B1 (fr)

Priority Applications (1)

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SI201930605T SI3802400T1 (sl) 2018-05-30 2019-05-15 Polnilni sistem za polnjenje vsebnikov s tekočim polnilnim materialom in polnilni stroj

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DE102018112908.4A DE102018112908A1 (de) 2018-05-30 2018-05-30 Füllsystem zum Füllen von Behältern mit einem flüssigen Füllgut sowie Füllmaschine
PCT/EP2019/062452 WO2019228805A1 (fr) 2018-05-30 2019-05-15 Système de remplissage de récipients avec un produit de remplissage liquide et machine de remplissage

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DE102018127592B4 (de) * 2018-11-06 2020-07-16 Khs Gmbh Füllelement, Füllsystem und Verfahren zum Füllen von Behältern
CN114920194B (zh) * 2022-05-23 2024-07-02 杭州中亚机械股份有限公司 流量可调式灌装装置
DE102022119599A1 (de) 2022-08-04 2024-02-15 Krones Aktiengesellschaft Füllvorrichtung und Verfahren zum Betreiben einer Füllvorrichtung

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DE29807610U1 (de) * 1998-04-27 1999-05-12 KHS Maschinen- und Anlagenbau AG, 44143 Dortmund Einkammer-Füllsystem
FR2848203B1 (fr) * 2002-12-04 2005-07-29 Sidel Sa Procede et installation de regulation du remplissage d'un recipient avec un liquide
DE102008030948A1 (de) * 2008-07-02 2010-01-21 Khs Ag Füllsystem zum Füllen von Flaschen oder dergleichen Behältern sowie Füllmaschine
DE102009009339A1 (de) * 2009-02-17 2010-08-26 Khs Ag Füllelement zum Füllen von Flaschen oder dergleichen Behältern sowie Füllmaschine mit derartigen Füllelementen
DE102009016084A1 (de) * 2009-04-03 2011-05-12 Khs Gmbh Füllelement zum Füllen von Behältern mit einem flüssigen Füllgut, Füllmaschine sowie Verfahren zum Füllen von Behältern
DE102011120372A1 (de) * 2011-12-07 2013-06-13 Khs Gmbh Füllelement sowie Füllsystem
DE102013109430A1 (de) * 2013-08-30 2015-03-05 Khs Gmbh Verfahren sowie Füllsystem zum Füllen von Behältern
DE102015111536A1 (de) * 2015-07-16 2017-01-19 Khs Gmbh Verfahren sowie Füllsystem zum Befüllen von Behältern
DE102015118612A1 (de) * 2015-10-30 2017-05-04 Krones Ag Vorrichtung zum Befüllen von Behältern mit einem Füllprodukt
DE102015120768A1 (de) * 2015-11-30 2017-06-01 Khs Gmbh Verfahren zum Befüllen von durch Streckblasen hergestellten Kunststoffbehältern

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WO2019228805A1 (fr) 2019-12-05
SI3802400T1 (sl) 2023-10-30
DE102018112908A1 (de) 2019-12-05

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