EP3325174B1 - Dispositif de transport de matériau visqueux - Google Patents

Dispositif de transport de matériau visqueux Download PDF

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Publication number
EP3325174B1
EP3325174B1 EP16723985.4A EP16723985A EP3325174B1 EP 3325174 B1 EP3325174 B1 EP 3325174B1 EP 16723985 A EP16723985 A EP 16723985A EP 3325174 B1 EP3325174 B1 EP 3325174B1
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EP
European Patent Office
Prior art keywords
pressure
container
pressure chamber
compressed air
follower plate
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.)
Active
Application number
EP16723985.4A
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German (de)
English (en)
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EP3325174A1 (fr
Inventor
Patrick Scholl
Sven Wirth
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.)
Atlas Copco IAS GmbH
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Atlas Copco IAS GmbH
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Publication of EP3325174A1 publication Critical patent/EP3325174A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/047—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/11—Vats or other containers for liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0409—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material the pumps being driven by a hydraulic or a pneumatic fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
    • B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of liquid or other fluent material

Definitions

  • the invention relates to a device for conveying viscous material from a barrel-like, a container bottom and extending from the container bottom upwardly extending container shell container, with a follower plate for closing the container, which on the inside of the container interior facing the container surface adjacent to the container bottom and is movable away from the container bottom and having a material outlet opening and a ventilation opening, with a pump for conveying the viscous material through the material outlet opening and a ventilation device for introducing compressed air through the ventilation opening and with a lowering device for lowering the follower plate in the container, the at least one Double-acting cylinder with two pressure-tightly separated by a piston pressure chambers and a support plate carrying the follower plate, wherein the piston by means of a first en the pressure chambers extending, out of the cylinder axially led out piston rod is connected to the support means, that when lifting the follower plate in the direction away from the container bottom, the first pressure chamber is reduced.
  • Such devices are used for example for applying adhesives or sealants in the production of motor vehicles.
  • the viscous material is conveyed by the pump from the barrel-like container, wherein the follower plate is held by means of the lowering device always in contact with a surface of the material in the container.
  • the follower plate is sealed, so on the one hand no material can escape from the container and on the other hand, no air from the environment can penetrate into the container. If the container is emptied, it is exchanged for a new, full container. For this purpose, the follower plate must be moved out of the container upwards.
  • the interior of the container must be ventilated, since otherwise a vacuum is created in the container, which prevents the follower plate from moving out.
  • air in particular compressed air
  • the follower plate has a large area compared to the areas of the piston, introducing compressed air into the container is an effective means of urging the follower plate upwards. If the follower plate is moved upwards, the piston which is rigidly connected to it via the carrying device and the piston rod likewise moves upward, so that an overpressure is created in the first pressure chamber and a negative pressure is created in the second pressure chamber.
  • the entrusted with the container change operator must therefore provide by discharging pressure medium from the first pressure chamber or introducing pressure medium into the second pressure chamber for pressure equalization. This requires some attention. It may happen that in the inattentiveness of the operator, the pressure medium in the first pressure chamber is compressed so much that upon escaping the follower plate from the container, when the pressure generated by the ventilation device escapes in the container, the pressure medium in the first pressure chamber acts as a prestressed spring and push the follower plate into or onto the container again with great force. This can damage the container or even injure the operator.
  • the invention is based on the idea that it should not be left to the attention of the operator that the pressure in the first pressure chamber is reduced to a sufficient extent during a movement of the piston upwards, due to a lifting of the follower plate.
  • a diverter valve is provided, which blocks a line leading from the first pressure chamber in a switching position and opens the line in another switching position for discharging pressure medium from the first pressure chamber.
  • a control unit automatically switches the diverter valve before introducing compressed air through the vent or during initiation.
  • the diverter valve is preferably a throttle valve or it is preceded by a throttle valve, so that the pressure medium from the first pressure chamber can not escape abruptly.
  • the switching of the diverter valve can be done automatically before the introduction of compressed air into the container, for example, when the device is changed over by the operator from the pumping operation to a container exchange operation. In this case, a corresponding signal is automatically transmitted to the control unit, which then switches the drain valve.
  • the introduction of the compressed air into the container by switching a valve in a compressed air supply line and that the switching of the valve in the compressed air supply line generates a signal to the control unit and this switches on receiving the signal diverting valve.
  • the line can lead from the first pressure chamber via the discharge valve to an open end to the environment.
  • the line leads from the first pressure chamber from the diverter valve into the second pressure chamber, so that both pressure chambers are short-circuited when the diverter valve is in its second switching position.
  • a derivation of pressure medium from the first pressure chamber then causes a supply of pressure medium in the second pressure chamber. It then no additional measures must be taken to prevent the emergence of a negative pressure in the second pressure chamber.
  • expedient is in the line between the discharge valve and the second pressure chamber arranged a check valve that releases a flow of the pressure medium in the second pressure chamber in a switching position and blocks a flow of the pressure medium from the second pressure chamber.
  • the object underlying the invention is achieved by a device having the features of claim 10.
  • a device having the features of claim 10.
  • at least one pressure measuring element for detecting the pressure in the first and / or in the second pressure chamber and a control device for controlling the compressed air supply through the ventilation opening in dependence on the pressure in the first pressure chamber and / or in dependence on the pressure in the second pressure chamber.
  • Each of the pressure measuring elements may in particular be a pressure sensor for measuring the pressure in the relevant pressure chamber.
  • control device advantageously has a control valve that, depending on the pressure in the first pressure chamber and / or the pressure in the second pressure chamber for diverting pressure medium from the first pressure chamber and / or for supplying pressure medium into the second pressure chamber is switchable.
  • the control device interrupts the introduction of compressed air when the pressure in the first pressure chamber rises above a first threshold and then releases the discharge of pressure medium from the first pressure chamber.
  • the control device can interrupt the introduction of compressed air when the pressure in the second pressure chamber drops below a second threshold. In any case, the control device can further release the introduction of pressure medium in the second pressure chamber.
  • the control device releases the introduction of compressed air into the container again, when the pressure in the first pressure chamber drops below a third threshold and then blocks the discharge of pressure medium from the first pressure chamber.
  • the control device can release the introduction of compressed air again when the Pressure in the second pressure chamber rises above a fourth threshold value and the control device can then block the introduction of pressure medium into the second pressure chamber.
  • FIG. 1 to 3 each a device for conveying viscous material in a schematic representation according to a first, a second and a third embodiment.
  • a device 10, 110, 210 for conveying viscous material from a cylindrical container 12, which has a container bottom 14 and a container casing 16 which extends upwards from the container bottom 14, is shown schematically.
  • the conveying device 10, 110, 210 (same features are provided in each embodiment with the same reference numerals) has a follower plate 18 which bears sealingly against an inner surface 20 of the container shell 16 resting on a surface 22 of the viscous material 26 received in the container interior 24 ,
  • the follower plate 18 has a material outlet opening, not shown, to which a pump is connected, which promotes the viscous material, usually an adhesive or sealant, to an applicator.
  • the amount of viscous material in the container 12 decreases, so that the follower plate 18 is gradually moved down to be held in abutment with the surface 22 of the viscous material 26.
  • a lowering device 30 which has a support means 32 rigidly connected to the follower plate 18.
  • it has two identical double-acting cylinder 34, which are arranged on both sides of the follower plate 18, so that their central axes are in line with the central axis of the follower plate 18.
  • the cylinders 34 each have a piston 36, which has a first, upper pressure chamber 38 and a second, lower pressure chamber 40 pressure-tight against each other demarcated.
  • a piston rod 42 which is guided out axially sealed from the cylinder 34, wherein both piston rods 42 are rigidly connected to the support means 32 extends.
  • the follower plate 18 By introducing pressure medium such as compressed air or hydraulic fluid into the pressure chambers 38, 40, the pistons 36 and with them the follower plate 18 can be moved up and down, in particular to follow the decreasing material level in the container 12.
  • the first pressure chambers 38 communicate with each other as well as the second pressure chambers 40.
  • the first pressure surface 38 respectively facing first effective surface 44 of the piston 36 is smaller than the second pressure chamber 40 facing the second effective surface 46.
  • the two pressure chambers 38, 40 results in a resultant force upward, the approximately, with a Tolerance of less than 10%, preferably less than 5%, the weight of the follower plate 18, the support means 32, the piston rods 42 and the piston 36 compensates.
  • the follower plate 18 has a ventilation opening 48, via which air and in particular compressed air can be introduced into the container interior 24.
  • a ventilation device 50 is provided, which has a ventilation opening 48 extending to the compressed air line 52 which is connected to a compressed air system 54 and by means of a compressed air valve 56 can be shut off. If the container 12 is emptied, the follower plate 18 must be removed from it for a container exchange. Since this rests close to the inner surface 20, air must be introduced into the container interior via the ventilation opening 48, since otherwise raising the follower plate by means of the lowering device 30 would lead to a lifting of the container 12.
  • a discharge valve 58 is provided in a line 60 leading to the first pressure chambers 38, which blocks the line 60 in a first switching position and opens in a second switching position to the environment, as in FIG Fig. 1 shown.
  • the discharge valve 58 is brought into the second switching position, so that pressure medium from the first pressure chambers 38 can escape into the environment when the follower plate 18 is moved upward.
  • the switching of the diverter valve 58 in the second switching position can for example be done manually, with a control or regulating device blocking the venting of the container interior 24, as long as the diverter valve 58 is in its first switching position.
  • the switching of the diverter valve 58 in the second switching position can also be done automatically by a control unit when the conveyor 10 is switched from a delivery mode in which it is ready to convey material 26 from the container 12 in a container change mode in which the Material promotion is prevented and an upward movement of the follower plate 18 is released.
  • a control unit when the conveyor 10 is switched from a delivery mode in which it is ready to convey material 26 from the container 12 in a container change mode in which the Material promotion is prevented and an upward movement of the follower plate 18 is released.
  • the line 60 in which the diverter valve 58 is disposed between the two pressure chambers 38, 40.
  • the diverter valve 58 is brought into its second switching position, as described in connection with the first embodiment, so that a bypass between the pressure chambers 38, 40 is made. If the follower plate 18 is moved upward, pressure medium from the first pressure chambers 38 is displaced into the second pressure chambers 40.
  • a check valve 64 is disposed between the diverter valve 58 and each of the second pressure chambers 40.
  • a first pressure sensor 70 for measuring the pressure in the first pressure chambers 38 and a second pressure sensor 72 for measuring the pressure in the second pressure chambers 40 provided, the measured values are transmitted to a control device not shown.
  • compressed air is introduced into the container 12 by means of the aeration device. With the resulting movement of the follower plate 18 and the piston 36 upward, the pressure in the first pressure chamber 38 increases, while the pressure in the second pressure chamber 40 decreases.
  • the control device suppresses the compressed air supply into the container interior 24 and switches a control valve 74 into its in Fig. 3 shown switching position, derived in the pressure medium from the first pressure chamber 38 and pressure medium is introduced into the second pressure chamber 40. If the pressure measured by the first pressure sensor 70 falls below a predetermined third threshold value or if the pressure measured by the second pressure sensor 72 rises above a predetermined fourth threshold value, then the control device switches the control valve 74 back into and out of pressure medium into and out of it the pressure chambers blocking position and releases the compressed air supply into the container interior 24 again. This process is repeated until the follower plate 18 is removed from the container 12.
  • Reference numerals 70, 72 in FIG Fig. 3 may also refer to pressure switches which, without the need for a separate control device, will switch the control valve 74 as described when these threshold values are reached.
  • the pressure switches 70, 72 thus combine the functions of a pressure measuring element and a control device with each other.
  • the invention relates to a device 10, 110, 210 for conveying viscous material 26 from a barrel-like, a container bottom 14 and extending from the container bottom 14 upwardly extending container shell 16 container 12, with a follower plate 18 for closing the Container 12, which at the container interior 24 facing inner surface 20 of the container shell 16th adjacent to the container bottom 14 and away from the container bottom 14 and having a material outlet opening and a vent opening 48, with a pump for conveying the viscous material 26 through the material outlet opening and a ventilation device 50 for introducing compressed air through the ventilation opening 48 and with a Lowering device 30 for lowering the follower plate 18 in the container 12, the at least one double-acting cylinder 34 with two pressure-tight by a piston 36 delimited pressure chambers 38, 40 and a follower plate 18 carrying support means 32, wherein the piston 36 by means of a first by a Pressure chambers 38 extending, out of the cylinder 34 axially led out piston rod 42 is connected to the support means 32, that

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  • Reciprocating Pumps (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)

Claims (13)

  1. Dispositif pour le transport de matériau visqueux (26) à partir d'un récipient (12) du genre fût, présentant un fond de récipient (14) et une enveloppe de récipient (16) s'étendant vers le haut à partir du fond de récipient (14), avec une plaque suiveuse (18) pour fermer le récipient (12), plaque qui est mobile en direction du fond de récipient (14) et en éloignement du fond de récipient (14) tout en s'appliquant contre la face intérieure (20) de l'enveloppe de récipient (16) qui est tournée vers l'intérieur (24) du récipient, et qui présente une ouverture de sortie de matériau et une ouverture de ventilation (48), avec une pompe pour le transport du matériau visqueux (26) à travers l'ouverture de sortie du matériau et avec un dispositif de ventilation (50) pour l'introduction d'air comprimé par l'ouverture de ventilation (48), et avec un dispositif d'abaissement (30) pour abaisser la plaque suiveuse (18) dans le récipient (12), dispositif qui présente au moins un cylindre à double action (34), pourvu de deux chambres de pression (38, 40) délimitées l'une par rapport à l'autre en étanchéité à la pression par un piston (36), ainsi qu'un dispositif support (32) portant la plaque suiveuse (18), sachant que le piston (36) est, au moyen d'une tige de piston (42) s'étendant dans une première chambre de pression (38) et sortant axialement du cylindre (34), relié au dispositif support (32) de telle sorte que la première chambre de pression (38) est rendue plus petite lorsque la plaque suiveuse (18) est soulevée en éloignement du fond de récipient (14), caractérisé par une soupape d'évacuation (58) qui, dans une première position de commutation, ferme une conduite (60) sortant de la première chambre de pression (38) et qui, dans une deuxième position de commutation, ouvre la conduite (60) pour évacuer du fluide sous pression de la première chambre de pression (38).
  2. Dispositif selon la revendication 1, caractérisé par une unité de commande pour la commutation automatique de la soupape d'évacuation (58) dans la deuxième position de commutation avant ou pendant l'introduction d'air comprimé par l'ouverture de ventilation (48).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la soupape d'évacuation (58) est une soupape d'étranglement ou en ce qu'une soupape d'étranglement (62) est montée en amont d'elle.
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la conduite (60) mène de la soupape d'évacuation (58) à une extrémité ouverte vers l'environnement.
  5. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que la conduite (60) mène de la soupape d'évacuation (58) dans la deuxième chambre de pression (40).
  6. Dispositif selon la revendication 5, caractérisé en ce qu'un clapet anti-retour (64) est disposé dans la conduite (60) entre la soupape d'évacuation (58) et la deuxième chambre de pression (40), clapet qui, dans une position de commutation, autorise un écoulement du fluide sous pression dans la deuxième chambre de pression (40) et empêche un écoulement du fluide sous pression hors de la deuxième chambre de pression (40).
  7. Procédé pour enlever la plaque suiveuse (18) d'un dispositif (10, 110) selon l'une des revendications précédentes, depuis un récipient (12) du genre fût présentant un fond de récipient (14) et une enveloppe de récipient (16) s'étendant vers le haut à partir du fond de récipient (14), sachant qu'au moyen du dispositif de ventilation (50), de l'air comprimé est introduit via l'ouverture de ventilation (48) dans le récipient (12) et sachant que la plaque suiveuse (18) est, par la pression de l'air, déplacée vers le haut dans le récipient (12) en éloignement du fond de récipient (14), caractérisé en ce que la soupape d'évacuation (58) est commutée et amenée dans la deuxième position de commutation avant ou avec l'introduction de l'air comprimé dans le récipient (12).
  8. Procédé selon la revendication 7, caractérisé en ce que la soupape d'évacuation (58) est commutée automatiquement par une unité de commande.
  9. Procédé selon la revendication 8, caractérisé en ce que l'introduction de l'air comprimé dans le récipient (12) s'effectue par la commutation d'une soupape (56) dans une conduite (52) d'apport d'air comprimé, et en ce que la commutation de la soupape (56) dans la conduite (52) d'apport d'air comprimé produit un signal à l'unité de commande, et celle-ci commute la soupape d'évacuation (58) lors de la réception du signal.
  10. Dispositif pour le transport de matériau visqueux (26) à partir d'un récipient (12) du genre fût, présentant un fond de récipient (14) et une enveloppe de récipient (16) s'étendant vers le haut à partir du fond de récipient (14), avec une plaque suiveuse (18) pour fermer le récipient (12), plaque qui est mobile en direction du fond de récipient (14) et en éloignement du fond de récipient (14) tout en s'appliquant contre la face intérieure (20) de l'enveloppe de récipient (16) qui est tournée vers l'intérieur (24) du récipient, et qui présente une ouverture de sortie de matériau et une ouverture de ventilation (48), avec une pompe pour le transport du matériau visqueux (26) à travers l'ouverture de sortie du matériau et avec un dispositif de ventilation (50) pour l'introduction d'air comprimé par l'ouverture de ventilation (48), et avec un dispositif d'abaissement (30) pour abaisser la plaque suiveuse (18) dans le récipient (12), dispositif qui présente au moins un cylindre à double action (34), pourvu de deux chambres de pression (38, 40) délimitées l'une par rapport à l'autre en étanchéité à la pression par un piston (36), ainsi qu'un dispositif support (32) portant la plaque suiveuse (18), sachant que le piston (36) est, au moyen d'une tige de piston (42) s'étendant dans une première chambre de pression (38) et sortant axialement du cylindre (34), relié au dispositif support (32) de telle sorte que la première chambre de pression (38) est rendue plus petite lorsque la plaque suiveuse (18) est soulevée en éloignement du fond de récipient (14), caractérisé par au moins un élément (70, 72) de mesure de pression pour la détection de la pression dans la première chambre de pression (38) et/ou dans la deuxième chambre de pression (40), et par un dispositif de régulation pour réguler l'apport d'air comprimé par l'ouverture de ventilation (48) en fonction de la pression dans la première chambre de pression (38) et/ou en fonction de la pression dans la deuxième chambre de pression (40).
  11. Dispositif selon la revendication 10, caractérisé en ce que le dispositif de régulation présente une soupape de régulation (74) qui, en fonction de la pression dans la première chambre de pression (38) et/ou de la pression dans la deuxième chambre de pression (40), peut être commutée pour évacuer du fluide sous pression de la première chambre de pression (38) et/ou pour apporter du fluide sous pression dans la deuxième chambre de pression (40).
  12. Procédé pour enlever la plaque suiveuse (18) d'un dispositif (210) selon l'une des revendications 10 ou 11, depuis un récipient (12) du genre fût présentant un fond de récipient (14) et une enveloppe de récipient (16) s'étendant vers le haut à partir du fond de récipient (14), sachant qu'au moyen du dispositif de ventilation (50), de l'air comprimé est introduit via l'ouverture de ventilation (48) dans le récipient (12) et sachant que la plaque suiveuse (18) est, par la pression de l'air, déplacée vers le haut dans le récipient (12) en éloignement du fond de récipient (14), caractérisé en ce que le dispositif de régulation interrompt l'introduction d'air comprimé si la pression dans la première chambre de pression (38) augmente au-dessus d'une première valeur de seuil prédéterminée et/ou si la pression dans la deuxième chambre de pression (40) diminue en dessous d'une deuxième valeur de seuil prédéterminée, et autorise l'évacuation de fluide sous pression de la première chambre de pression (38) et/ou l'introduction de fluide sous pression dans la deuxième chambre de pression (40).
  13. Procédé selon la revendication 12, caractérisé en ce que le dispositif de régulation autorise à nouveau l'introduction d'air comprimé si la pression dans la première chambre de pression (38) diminue en dessous d'une troisième valeur de seuil prédéterminée et/ou si la pression dans la deuxième chambre de pression (40) augmente au-dessus d'une quatrième valeur de seuil prédéterminée, et empêche l'évacuation de fluide sous pression de la première chambre de pression (38) et/ou l'introduction de fluide sous pression dans la deuxième chambre de pression (40).
EP16723985.4A 2015-07-20 2016-05-10 Dispositif de transport de matériau visqueux Active EP3325174B1 (fr)

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PCT/EP2016/060394 WO2017012729A1 (fr) 2015-07-20 2016-05-10 Dispositif de transport de matériau visqueux

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DE102018104763A1 (de) * 2018-03-02 2019-09-05 Atlas Copco Ias Gmbh Verfahren zum Entfernen einer Folgeplatte aus einem Behälter
DE202018104456U1 (de) * 2018-08-02 2019-11-05 Mwt Ag Druckbehälter mit Spülvorrichtung
US10518988B1 (en) * 2018-08-27 2019-12-31 Integrated Dispense Solutions Safety mechanism for use with a drum unloader
DE102019201623A1 (de) * 2019-02-08 2020-08-13 Henkel Ag & Co. Kgaa Vorrichtung und Verfahren zum Fördern eines Fluids aus einem Behälter
CN113120838B (zh) * 2019-12-30 2023-01-06 中国石油天然气股份有限公司 液态介质传输装置
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KR20180030527A (ko) 2018-03-23
CN107921466A (zh) 2018-04-17
WO2017012729A1 (fr) 2017-01-26
DE102015009130A1 (de) 2017-01-26
KR102440654B1 (ko) 2022-09-05
CN107921466B (zh) 2020-04-28
US20180193871A1 (en) 2018-07-12
EP3325174A1 (fr) 2018-05-30

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