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EP2758332B1 - Method and spout for constant-level filling with a liquid - Google Patents

Method and spout for constant-level filling with a liquid Download PDF

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Publication number
EP2758332B1
EP2758332B1 EP12759745.8A EP12759745A EP2758332B1 EP 2758332 B1 EP2758332 B1 EP 2758332B1 EP 12759745 A EP12759745 A EP 12759745A EP 2758332 B1 EP2758332 B1 EP 2758332B1
Authority
EP
European Patent Office
Prior art keywords
distribution
exhaust
valve
check valve
pressure
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.)
Not-in-force
Application number
EP12759745.8A
Other languages
German (de)
French (fr)
Other versions
EP2758332A1 (en
Inventor
Jean-Jacques Graffin
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.)
Serac Group SAS
Original Assignee
Serac Group SAS
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Filing date
Publication date
Application filed by Serac Group SAS filed Critical Serac Group SAS
Publication of EP2758332A1 publication Critical patent/EP2758332A1/en
Application granted granted Critical
Publication of EP2758332B1 publication Critical patent/EP2758332B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
    • B67C3/2614—Filling-heads; Means for engaging filling-heads with bottle necks specially adapted for counter-pressure filling
    • B67C3/2617—Filling-heads; Means for engaging filling-heads with bottle necks specially adapted for counter-pressure filling the liquid valve being opened by mechanical or electrical actuation
    • B67C3/262—Filling-heads; Means for engaging filling-heads with bottle necks specially adapted for counter-pressure filling the liquid valve being opened by mechanical or electrical actuation and the filling operation stopping when the liquid rises to a level at which it closes a vent opening
    • 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
    • B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
    • B67C3/2614—Filling-heads; Means for engaging filling-heads with bottle necks specially adapted for counter-pressure filling
    • B67C3/2625—Filling-heads; Means for engaging filling-heads with bottle necks specially adapted for counter-pressure filling the liquid valve being opened automatically when a given counter-pressure is obtained in the container to be filled
    • B67C3/2628—Filling-heads; Means for engaging filling-heads with bottle necks specially adapted for counter-pressure filling the liquid valve being opened automatically when a given counter-pressure is obtained in the container to be filled and the filling operation stopping when the liquid rises to a level at which it closes a vent opening

Definitions

  • the present invention relates to a constant level filling process of containers with a flat or gaseous liquid and a filling spout for the implementation of this method.
  • an annular connecting portion configured to provide a sealing support with a container neck and delimit a dispensing area
  • a distribution duct connected to a liquid supply source under a distribution pressure via a dispensing valve and opening into the dispensing zone
  • filling spouts can not be used for the conditioning of gaseous liquids, that is to say of liquids containing a gas dissolved in the liquid, in because of the outgassing that occurs when introducing the liquid into the container.
  • An object of the present invention is to provide a method and a filling spout implementing this method, to achieve in a simple way the filling of containers with a flat or gaseous liquid.
  • the air contained in the container is compressed until it reaches the setting pressure so that, in the case of a gaseous liquid, the pressure in the container is opposed to degassing of the liquid.
  • the pressurized gas trapped between the exhaust locking valve and the calibrated valve causes an opening of the exhaust locking valve and an accelerated return of the liquid content in the exhaust vent to the container.
  • the method further comprises a step of injecting into the exhaust vent, after the introduction of a container, a gas at a pressure at most equal to the pressure of exhaust.
  • a gas at a pressure at most equal to the pressure of exhaust in the case of a flat liquid, the introduction of a neutral gas into the container makes it possible to reduce the effective rate of oxygen.
  • the introduction into a vessel at atmospheric pressure of nitrogen at a pressure of 200 kPa lower the proportion of oxygen trapped at one-third of its initial value.
  • the filling spout comprises a gas injection member arranged to allow an injection of gas into a container bearing against the annular connection portion.
  • the gas injection member opens into the exhaust vent between the exhaust lock valve and the vent port.
  • the gas injection member is not reached by the liquid during filling of the container, which simplifies the cleaning of the filling spouts.
  • the filling spout comprises a connecting duct opening on the one hand in the distribution duct, and on the other hand in the exhaust vent, between the exhaust locking valve and the venting port, and a valve mounted on the duct link.
  • the amount of liquid that rises in the exhaust vent and then returns to the container is a function of the volume of the float ensuring the closing maneuver of the exhaust lock valve. This poses a problem insofar as the liquid used to lift the float then returns to the container and may be polluted during its passage through the exhaust vent. It is therefore desirable to minimize the volume of the exhaust lock valve.
  • the exhaust lock valve is disposed in a closed enclosure having an upper wall having an exhaust port surrounded by an upper seat for the exhaust lock valve
  • the Exhaust locking valve is a weighing valve mounted to slide in a valve guide having a guide duct having a lower end communicating with the exhaust vent, and an upper end centered on the upper seat of the locking valve.
  • exhaust the exhaust lock valve being further mounted in the guide duct with a clearance creating a sufficient pressure drop so that the exhaust lock valve is pushed in the manner of a piston by the liquid coming by the exhaust vent.
  • an exhaust lock valve of a size slightly greater than the upper seat is sufficient for ensure a tight closure of the exhaust port so that the volume of liquid necessary for the operation of the exhaust lock valve is very small.
  • the filling carousel comprises an annular supply manifold 1 supplied with pressurized liquid by radial ducts 2 having one end connected to the supply manifold 1 and an opposite end connected to a rotating joint 3 providing a connection with a source of liquid supply under pressure symbolized by a pump 4 associated with a storage tank 5.
  • the collector 1 is formed by an annular groove 6 formed in a plate 7, and closed by an annular cover 8 suitably fixed to the plate 7 by not shown bolts extending in holes 9, the seal between the plate 7 and the cover 8 being provided by O-rings 10 and 11.
  • Filler nozzles 12 are suspended under the plate 7.
  • Each filling spout 12 has a spout body 13 traversed by a vertical bore 14 having at its lower part a recess 15 in which is mounted an annular seal 16 forming an annular connecting portion configured to provide a sealing with a container neck 17.
  • a distribution duct formed by a rectilinear tube 18 is mounted in the bore 14 and is held in place by an O-ring 19 compressed by a screwed bushing 20.
  • the lower end of the distribution duct 18 extends inside. of the container in which it defines a distribution zone 21.
  • the upper end 22 of the distribution duct 18 is fixed under the plate 7 and is connected to the supply manifold 1 by a bore 23, via a valve 24.
  • the dispensing valve 24 comprises a ball 25 resting on a bowl 26 sealingly mounted across the distribution pipe 18 and having a dispensing orifice 27 having a diameter smaller than that of the ball 25.
  • the ball 25 is operated by a magnetic actuator comprising a finger 28 carried by a cylindrical magnetic armature 29 disposed inside the distribution duct. 18 and whose position is determined by a magnetic ring 30 mounted axially movable to the distribution duct 18 and surrounding it at the level of the magnetic armature 29.
  • the position of the magnetic ring is determined by an actuator comprising here a roller 31 fixed on the magnetic ring 30 and cooperating with a guide cam 30.
  • the finger 28 extends coaxially with the dispensing orifice 27 of the cup 26 so that depending on the movements axial of the magnetic armature 29, the ball 25 is either resting on the edge of the dispensing orifice 27 to ensure a closure of the supply duct 18, or removed from this position by the finger 28 so that the liquid under pressure can flow through the dispensing orifice 27 into the dispensing duct 18.
  • the latter comprises a recess 33 in which is mounted a tube 34 which extends coaxially with the distribution duct 18 and is spaced from it and which extends downwards to near the lower end of the dispensing duct 18.
  • the tube 34 is pierced with an orifice 35 which coincides with a bore 36 in the spout body 13.
  • the tube 34 and the piercing 36 thus define part of an exhaust vent whose upper end opens into an exhaust control member 37.
  • the exhaust control member 37 comprises a body 38 having a longitudinal bore 39. At its lower end, the bore 39 opens into a bore 44 of larger diameter than the bore 39 so that the recess between the bore 39 and the bore 44 defines an upper seat 45 for a weighing valve formed here by a steel ball 46.
  • the term "check valve” means a valve having a density that is not sufficient to be able to to be carried by the liquid to be conditioned.
  • the ball 46 is mounted in an exhaust locking valve guide formed here by a sleeve 47 having a cylindrical side wall 48 of the same diameter as the bore 44, provided with an annular flange 49 having dimensions identical to a recess.
  • the sleeve 47 thus defines with the bore 48 a closed enclosure 67 provided with an exhaust port 45.
  • the bushing 47 has a central bore 51 coaxial with the bore 39 in the body 38 and of the same diameter as the latter.
  • the lower end of the bore 51 coincides with the upper end of the bore 36 in the block 13.
  • the bushing 47 has an upper bore 52, coaxial with the bore 51 forming a guide duct for the ball 46 and having a diameter greater than that of the ball, adapted so that the clearance between the ball 46 and the bore 52 creates a sufficient head loss so that the ball 46 is repelled in the manner of a piston by liquid arriving in the hole 36.
  • a set of 0.5 tenths of a mm to one tenth of a mm is satisfactory.
  • the recess between the bore 51 and the bore 52 defines a lower seat 55 for the ball 46.
  • the lower seat 55 is at a distance from the upper seat such that the stroke d of the ball 46 between the low position shown in the line. continuous on the figure 5 , and the high position shown in dashes, at most equal to the radius of the ball 46.
  • the bushing 47 has a radial bore 54, of the same diameter as the bore 51, associated with a lateral notch 53 having a section greater than the bore 51 to delimit, with the lateral wall 48 of the enclosure 67 a short conduit.
  • -circuit extending in parallel to the guide duct 52 and having a lower end opening below the ball 46 and an upper end opening above the ball 46 when the latter in a rest position resting on the seat lower 55.
  • the short circuit conduit has a volume greater than a volume swept by the exhaust lock valve between a low position and a high position.
  • the body 38 further comprises a bore 56 transverse to the bore 39 and associated with a bore 57 in which is screwed a sleeve 58 whose central duct 59 forms part of the exhaust vent and opens out of the body 38 in a venting orifice 60.
  • the bore 57 has a diameter greater than the bore 56 and the recess thus formed forms a seat for a ball 61 biased towards it by a spring 62 disposed in the central duct of the sleeve 58, and whose bearing force is determined by screwing
  • the bushing 58, the ball 61 and the spring 62 thus form a valve calibrated between the exhaust port 45 and the vent port 60.
  • the upper end of the longitudinal bore 39 is equipped with a pressurized gas injection member comprising a sleeve 40 in which is mounted a nonreturn valve 41.
  • the sleeve 40 is connected to a pressurized gas source such that a nitrogen bottle 42, via a valve 43 whose position is controlled by an operating member such as a roller associated with a cam, not shown.
  • the filling nozzle comprises a connecting duct 63 opening on the one hand into the dispensing duct 18 and on the other hand into the bore 39.
  • a valve 64 is mounted on the connecting duct 63 and its position is determined by a control member such as a roller 65 associated with a retractable cam 66.
  • the device thus described serves to implement the method according to the invention as described below.
  • the calibrated valve 61 is first set to close the exhaust vent according to a setting at the maximum exhaust pressure that is desired to reach the container during filling, this calibration pressure being of course lower. at the distribution pressure.
  • a container to be filled is placed on the part of annular connection. If necessary depending on the desired filling conditions, a gas at a pressure at most equal to the exhaust pressure is injected into the exhaust vent. It should be noted in this regard that because of its weight the exhaust lock valve 46 is normally supported on the lower seat 55.
  • the exhaust lock valve is plated on the lower seat 55 with a greater force as the pressure is higher in the exhaust vent.
  • the dispensing valve is then opened and the liquid then flows into the container at a rate which is a function of the difference between the dispensing pressure and the pressure in the container.
  • the liquid rises in the exhaust vent.
  • the bushing 47 the liquid rises simultaneously in the bore 51 and in the short-circuit conduit 53, but because of the difference in volume between the short-circuit conduit and the bore 51, the liquid rises faster. in the bore 51 only in the short circuit conduit so that the exhaust lock valve is pushed against the upper seat 45 before the liquid reaches it through the short circuit conduit.
  • the exhaust vent is closed by the exhaust lock valve 46, the liquid ceases to flow into the container.
  • the dispensing valve 25 is then closed and the container is lowered to disengage it from the seal 16.
  • the neck of the container is thus vented and because of the pressurized gas trapped between the calibrated valve 61 and the locking valve exhaust 46, the latter is pushed sharply downwards and the liquid contained in the exhaust vent is driven to the container.
  • the invention has been described in relation to a filling spout connected to a device for injecting a pressurized gas, which makes it possible to very quickly reach a high pressure inside the container, the method according to the invention can be implemented without prior injection of gas under pressure, the pressure finally reached in the container being only a function of the quantity of liquid introduced into the container and the setting of the valve 61.
  • the invention has been described in connection with a filling spout comprising a connecting tube 63 between the liquid distribution duct and the exhaust vent in order to simplify the washing circuit and the washing operation, it is may provide to separately feed the cleaning of the distribution pipe on the one hand, and the exhaust vent on the other hand by installing on the block 37 a cleaning liquid injection member. Whether the washing product is sent into the exhaust circuit via the connecting pipe or by an independent injection member, it can in any case be recovered below the filling spout by a manifold common to the distribution duct and the exhaust vent.

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  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Description

La présente invention concerne un procédé de remplissage à niveau constant de récipients avec un liquide plat ou gazeux et un bec de remplissage pour la mise en oeuvre de ce procédé.The present invention relates to a constant level filling process of containers with a flat or gaseous liquid and a filling spout for the implementation of this method.

ARRIÈRE-PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

Pour le remplissage à niveau constant de récipients avec un liquide plat on connaît des becs de remplissage comportant : une partie de liaison annulaire configurée pour réaliser un appui étanche avec un col de récipient et délimiter une zone de distribution ; un conduit de distribution relié à une source d'alimentation en liquide sous une pression de distribution par l'intermédiaire d'un clapet de distribution et débouchant dans la zone de distribution ; un évent d'échappement débouchant d'une part dans la zone de distribution, et d'autre part selon un orifice de mise à l'air libre, et un clapet de verrouillage d'échappement commandé par un niveau de liquide dans l'évent d'échappement, interposé dans l'évent d'échappement entre la zone de distribution et l'orifice de mise à l'air libre. Lors du remplissage d'un récipient, l'air contenu dans le récipient est chassé par le liquide introduit dans le récipient et s'échappe par l'orifice de mise à l'air libre. Lorsque le liquide atteint l'extrémité inférieure de l'évent d'échappement, le liquide monte dans l'évent d'échappement et provoque la fermeture du clapet de verrouillage d'échappement. Le clapet de distribution est ensuite fermé et le récipient est séparé de la partie de liaison annulaire de sorte que le liquide contenu dans l'évent d'échappement retombe dans le récipient.For filling at constant level of containers with a flat liquid filling nozzles are known comprising: an annular connecting portion configured to provide a sealing support with a container neck and delimit a dispensing area; a distribution duct connected to a liquid supply source under a distribution pressure via a dispensing valve and opening into the dispensing zone; an exhaust vent opening on the one hand in the distribution zone, and on the other hand according to a vent orifice, and an exhaust lock valve controlled by a liquid level in the vent exhaust, interposed in the exhaust vent between the dispensing zone and the venting port. When filling a container, the air contained in the container is expelled by the liquid introduced into the container and escapes through the venting port. When the liquid reaches the lower end of the exhaust vent, the liquid rises into the exhaust vent and causes the exhaust lock valve to close. The dispensing valve is then closed and the container is separated from the annular connecting portion so that the liquid contained in the exhaust vent falls back into the container.

Ces becs de remplissage ne peuvent pas être utilisés pour le conditionnement de liquides gazeux, c'est-à-dire de liquides contenant un gaz dissous dans le liquide, en raison du dégazage qui se produit lors de l'introduction du liquide dans le récipient.These filling spouts can not be used for the conditioning of gaseous liquids, that is to say of liquids containing a gas dissolved in the liquid, in because of the outgassing that occurs when introducing the liquid into the container.

On connaît également, notamment du document US 3946770 , et du document US 4206789 , des dispositifs comportant un système très complexe de conduits et de vannes mettant le bec de remplissage en relation avec une cuve sous pression contenant le liquide à conditionner de façon à mettre la cuve d'alimentation et le récipient en équipression. Lors du remplissage, l'air initialement contenu dans le récipient est renvoyé dans la cuve d'alimentation et risque donc de provoquer une pollution du liquide à conditionner. En outre, en raison de la complexité des circuits il est difficile d'effectuer un nettoyage efficace.It is also known, in particular from the document US 3946770 , and of the document US 4206789 , devices comprising a very complex system of conduits and valves placing the filling spout in relation to a pressure vessel containing the liquid to be conditioned so as to put the feed tank and the container in equipressure. During filling, the air initially contained in the container is returned to the feed tank and may therefore cause pollution of the liquid to be packaged. In addition, because of the complexity of the circuits it is difficult to perform an effective cleaning.

Le document US 3 782 427 décrit quant à lui un bec de remplissage et un procédé de remplissage correspondant.The document US 3,782,427 describes a filling spout and a corresponding filling process.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Un but de la présente invention est de proposer un procédé et un bec de remplissage mettant en oeuvre ce procédé, pour réaliser de façon simple le remplissage de récipients avec un liquide plat ou gazeux.An object of the present invention is to provide a method and a filling spout implementing this method, to achieve in a simple way the filling of containers with a flat or gaseous liquid.

BRÈVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

En vue de la réalisation de ce but, on propose selon l'invention un procédé de remplissage à niveau constant de récipients au moyen d'un bec de remplissage comportant :

  • une partie de liaison annulaire configurée pour réaliser un appui étanche avec un col de récipient, et délimiter une zone de distribution,
  • un conduit de distribution relié à une source d'alimentation en liquide sous une pression de distribution par l'intermédiaire d'un clapet de distribution et débouchant dans la zone de distribution,
  • un évent d'échappement débouchant d'une part dans la zone de distribution et d'autre part selon un orifice de mise à l'air libre, et
  • un clapet de verrouillage d'échappement commandé par un niveau de liquide dans l'évent d'échappement, interposé dans l'évent d'échappement entre la zone de distribution et l'orifice de mise à l'air libre, ce procédé comportant les étapes de :
  • fermer l'évent d'échappement de façon tarée selon un tarage à une pression d'échappement inférieure à la pression de distribution, entre le clapet de verrouillage d'échappement et l'orifice de mise à l'air libre,
  • mettre en place un récipient à remplir, en appui sur la partie de liaison annulaire,
  • ouvrir le clapet de distribution et le maintenir ouvert jusqu'à une fermeture du clapet de verrouillage d'échappement,
  • fermer le clapet de distribution,
  • dégager le récipient de la partie de liaison annulaire.
In order to achieve this object, it is proposed according to the invention a method for filling containers at a constant level by means of a filling spout comprising:
  • an annular connecting portion configured to provide a sealing support with a container neck, and delimiting a dispensing zone,
  • a distribution duct connected to a liquid supply source under a distribution pressure via a distribution valve and opening into the distribution zone,
  • an exhaust vent opening on the one hand in the distribution zone and on the other hand according to a vent orifice, and
  • an exhaust lock valve controlled by a liquid level in the exhaust vent, interposed in the exhaust vent between the dispensing zone and the venting orifice, this method comprising the steps of:
  • closing the exhaust vent in a calibrated manner according to a setting at an exhaust pressure lower than the distribution pressure, between the exhaust locking valve and the venting port,
  • set up a container to fill, resting on the annular connection part,
  • open the distribution valve and keep it open until the exhaust lock valve closes,
  • close the dispensing valve,
  • disengage the container from the annular connecting portion.

Ainsi, lors de l'introduction du liquide dans le récipient, l'air contenu dans le récipient est comprimé jusqu'à atteindre la pression de tarage de sorte que dans le cas d'un liquide gazeux la pression dans le récipient s'oppose à un dégazage du liquide. Lors de la fermeture du clapet de distribution et du dégagement du récipient, le gaz sous pression emprisonné entre le clapet de verrouillage d'échappement et le clapet taré provoque une ouverture du clapet de verrouillage d'échappement et un retour accéléré du liquide de contenu dans l'évent d'échappement vers le récipient.Thus, when the liquid is introduced into the container, the air contained in the container is compressed until it reaches the setting pressure so that, in the case of a gaseous liquid, the pressure in the container is opposed to degassing of the liquid. When closing the dispensing valve and releasing the container, the pressurized gas trapped between the exhaust locking valve and the calibrated valve causes an opening of the exhaust locking valve and an accelerated return of the liquid content in the exhaust vent to the container.

Selon une version avantageuse de l'invention, le procédé comporte en outre une étape d'injecter dans l'évent d'échappement, après la mise en place d'un récipient, un gaz à une pression au plus égale à la pression d'échappement. Ainsi, dans le cas d'un liquide plat l'introduction d'un gaz neutre dans le récipient permet de diminuer le taux effectif d'oxygène. À titre d'exemple l'introduction dans un récipient à la pression atmosphérique, d'azote sous une pression de 200 kPa fait descendre la proportion de l'oxygène emprisonné à un tiers de sa valeur initiale.According to an advantageous version of the invention, the method further comprises a step of injecting into the exhaust vent, after the introduction of a container, a gas at a pressure at most equal to the pressure of exhaust. Thus, in the case of a flat liquid, the introduction of a neutral gas into the container makes it possible to reduce the effective rate of oxygen. By way of example, the introduction into a vessel at atmospheric pressure of nitrogen at a pressure of 200 kPa lower the proportion of oxygen trapped at one-third of its initial value.

L'invention concerne également un bec de remplissage comportant :

  • une partie de liaison annulaire configurée pour réaliser un appui étanche avec un col de récipient, et délimiter une zone de distribution,
  • un conduit de distribution relié à une source d'alimentation en liquide sous une pression de distribution par l'intermédiaire d'un clapet de distribution et débouchant dans la zone de distribution,
  • un évent d'échappement débouchant d'une part dans la zone de distribution et d'autre part selon un orifice de mise à l'air libre,
  • un clapet de verrouillage d'échappement commandé par un niveau de liquide dans l'évent d'échappement, interposé dans l'évent d'échappement entre la zone de distribution et l'orifice de mise à l'air libre, et
  • un clapet taré réglé pour fermer l'évent d'échappement selon un tarage à une pression inférieure à la pression de distribution et monté entre le clapet de verrouillage d'échappement et l'orifice de mise à l'air libre.
The invention also relates to a filling spout comprising:
  • an annular connecting portion configured to provide a sealing support with a container neck, and delimiting a dispensing zone,
  • a distribution duct connected to a liquid supply source under a distribution pressure via a distribution valve and opening into the distribution zone,
  • an exhaust vent opening on the one hand in the distribution zone and on the other hand according to a vent orifice,
  • an exhaust lock valve controlled by a liquid level in the exhaust vent, interposed in the exhaust vent between the dispensing zone and the venting port, and
  • a calibrated valve set to close the exhaust vent at a pressure setting below the delivery pressure and mounted between the exhaust lock valve and the vent port.

Selon une version avantageuse de l'invention, le bec de remplissage comporte un organe d'injection de gaz disposé pour permettre une injection de gaz dans un récipient en appui contre la partie de liaison annulaire.According to an advantageous version of the invention, the filling spout comprises a gas injection member arranged to allow an injection of gas into a container bearing against the annular connection portion.

De préférence dans ce cas, l'organe d'injection de gaz débouche dans l'évent d'échappement entre le clapet de verrouillage d'échappement et l'orifice de mise à l'air libre.Preferably in this case, the gas injection member opens into the exhaust vent between the exhaust lock valve and the vent port.

Ainsi, l'organe d'injection de gaz n'est pas atteint par le liquide lors du remplissage du récipient, ce qui simplifie le nettoyage des becs de remplissage.Thus, the gas injection member is not reached by the liquid during filling of the container, which simplifies the cleaning of the filling spouts.

Selon un autre aspect avantageux de l'invention, le bec de remplissage comporte un conduit de liaison débouchant d'une part dans le conduit de distribution, et d'autre part dans l'évent d'échappement, entre le clapet de verrouillage d'échappement et l'orifice de mise à l'air libre, et une vanne montée sur le conduit de liaison. Ainsi, lors du nettoyage du bec de remplissage il suffit d'envoyer du liquide de nettoyage par le conduit de distribution et d'ouvrir la vanne montée sur le conduit de liaison pour assurer un nettoyage complet du bec de remplissage, y compris l'évent d'échappement et le clapet de verrouillage d'échappement.According to another advantageous aspect of the invention, the filling spout comprises a connecting duct opening on the one hand in the distribution duct, and on the other hand in the exhaust vent, between the exhaust locking valve and the venting port, and a valve mounted on the duct link. Thus, when cleaning the filler spout simply send cleaning liquid through the distribution pipe and open the valve mounted on the connecting pipe to ensure complete cleaning of the filler spout, including the vent exhaust and the exhaust lock valve.

Par ailleurs, la quantité de liquide qui remonte dans l'évent d'échappement et retourne ensuite dans le récipient est fonction du volume du flotteur assurant la manoeuvre de fermeture du clapet de verrouillage d'échappement. Ceci pose un problème dans la mesure où le liquide servant à soulever le flotteur retourne ensuite dans le récipient et risque d'être pollué lors de son passage dans l'évent d'échappement. Il est donc souhaitable de minimiser le volume du clapet de verrouillage d'échappement.Furthermore, the amount of liquid that rises in the exhaust vent and then returns to the container is a function of the volume of the float ensuring the closing maneuver of the exhaust lock valve. This poses a problem insofar as the liquid used to lift the float then returns to the container and may be polluted during its passage through the exhaust vent. It is therefore desirable to minimize the volume of the exhaust lock valve.

Selon encore un autre aspect de l'invention, le clapet de verrouillage d'échappement est disposé dans une enceinte fermée ayant une paroi supérieure comportant un orifice d'échappement entouré d'un siège supérieur pour le clapet de verrouillage d'échappement, et le clapet de verrouillage d'échappement est un clapet pesant monté pour coulisser dans un guide de clapet comportant un conduit de guidage ayant une extrémité inférieure communiquant avec l'évent d'échappement, et une extrémité supérieure centrée sur le siège supérieur du clapet de verrouillage d'échappement, le clapet de verrouillage d'échappement étant en outre monté dans le conduit de guidage avec un jeu créant une perte de charge suffisante pour que le clapet de verrouillage d'échappement soit repoussé à la façon d'un piston par du liquide arrivant par l'évent d'échappement. Ainsi, un clapet de verrouillage d'échappement de dimension très légèrement supérieure au siège supérieur suffit pour assurer une fermeture étanche de l'orifice d'échappement de sorte que le volume de liquide nécessaire à la manoeuvre du clapet de verrouillage d'échappement est très faible.According to yet another aspect of the invention, the exhaust lock valve is disposed in a closed enclosure having an upper wall having an exhaust port surrounded by an upper seat for the exhaust lock valve, and the Exhaust locking valve is a weighing valve mounted to slide in a valve guide having a guide duct having a lower end communicating with the exhaust vent, and an upper end centered on the upper seat of the locking valve. exhaust, the exhaust lock valve being further mounted in the guide duct with a clearance creating a sufficient pressure drop so that the exhaust lock valve is pushed in the manner of a piston by the liquid coming by the exhaust vent. Thus, an exhaust lock valve of a size slightly greater than the upper seat is sufficient for ensure a tight closure of the exhaust port so that the volume of liquid necessary for the operation of the exhaust lock valve is very small.

BRÈVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de description qui suit d'un mode de mise en oeuvre préféré non limitatif du procédé selon l'invention et du bec de remplissage permettant cette mise en oeuvre, en référence aux figures ci-jointes parmi lesquelles :

  • la figure 1 est une vue de côté schématique d'un carrousel de remplissage équipé de becs de remplissage selon l'invention,
  • la figure 2 est une vue en coupe très agrandie de l'encadré A de la figure 1, selon la ligne II-II de la figure 1,
  • la figure 3 est une vue en coupe très agrandie de l'encadré B de la figure 1, selon la ligne III-III de la figure 1,
  • la figure 4 est une vue en perspective agrandie du guide de clapet de verrouillage d'échappement selon l'invention,
  • la figure 5 est une vue encore agrandie de l'encadré C de la figure 3.
Other features and advantages of the invention will appear on reading the following description of a preferred non-limiting embodiment of the method according to the invention and the filling spout for this implementation, with reference to FIGS. attached, including:
  • the figure 1 is a schematic side view of a filling carousel equipped with filling spouts according to the invention,
  • the figure 2 is a greatly enlarged sectional view of Box A of the figure 1 , according to line II-II of the figure 1 ,
  • the figure 3 is a very enlarged sectional view of Box B of the figure 1 , according to line III-III of the figure 1 ,
  • the figure 4 is an enlarged perspective view of the exhaust lock valve guide according to the invention,
  • the figure 5 is a still enlarged view of Box C of the figure 3 .

DESCRIPTION DETAILLÉE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En référence à la figure 1, le carrousel de remplissage selon l'invention comporte un collecteur d'alimentation annulaire 1 alimenté en liquide sous pression par des conduits radiaux 2 ayant une extrémité reliée au collecteur d'alimentation 1 et une extrémité opposée reliée à un joint tournant 3 assurant une liaison avec une source d'alimentation en liquide sous pression symbolisée par une pompe 4 associée à une cuve de stockage 5. Comme illustré par la figure 2, le collecteur 1 est formé par une rainure annulaire 6 réalisée dans un plateau 7, et fermée par un couvercle annulaire 8 convenablement fixé au plateau 7 par des boulons non représentés s'étendant dans des perçages 9, l'étanchéité entre le plateau 7 et le couvercle 8 étant assurée par des joints toriques 10 et 11. Des becs de remplissage 12 sont suspendus sous le plateau 7. Chaque bec de remplissage 12 comporte un corps de bec 13 traversé par un alésage vertical 14 comportant à sa partie inférieure un décrochement 15 dans lequel est monté un joint annulaire 16 formant une partie de liaison annulaire configurée pour réaliser un appui étanche avec un col de récipient 17.With reference to the figure 1 , the filling carousel according to the invention comprises an annular supply manifold 1 supplied with pressurized liquid by radial ducts 2 having one end connected to the supply manifold 1 and an opposite end connected to a rotating joint 3 providing a connection with a source of liquid supply under pressure symbolized by a pump 4 associated with a storage tank 5. As illustrated by the figure 2 , the collector 1 is formed by an annular groove 6 formed in a plate 7, and closed by an annular cover 8 suitably fixed to the plate 7 by not shown bolts extending in holes 9, the seal between the plate 7 and the cover 8 being provided by O-rings 10 and 11. Filler nozzles 12 are suspended under the plate 7. Each filling spout 12 has a spout body 13 traversed by a vertical bore 14 having at its lower part a recess 15 in which is mounted an annular seal 16 forming an annular connecting portion configured to provide a sealing with a container neck 17.

Un conduit de distribution formé par un tube rectiligne 18 est monté dans l'alésage 14 et est maintenu en place par un joint torique 19 comprimé par une douille vissée 20. L'extrémité inférieure du conduit de distribution 18 s'étend à l'intérieur du récipient dans lequel elle définit une zone de distribution 21. L'extrémité supérieure 22 du conduit de distribution 18 est fixée sous le plateau 7 et est relié au collecteur d'alimentation 1 par un perçage 23, par l'intermédiaire d'un clapet de distribution 24. Dans le mode de réalisation illustré le clapet de distribution 24 comporte une bille 25 reposant sur une cuvette 26 montée de façon étanche en travers du conduit de distribution 18 et comportant un orifice de distribution 27 ayant un diamètre inférieur à celui de la bille 25. La bille 25 est manoeuvrée par un actionneur magnétique comprenant un doigt 28 porté par une armature magnétique cylindrique 29 disposée à l'intérieur du conduit de distribution 18 et dont la position est déterminée par une bague magnétique 30 montée mobile axialement au conduit de distribution 18 et entourant celui-ci au niveau de l'armature magnétique 29. La position de la bague magnétique est déterminée par un organe de manoeuvre comprenant ici un galet 31 fixé sur la bague magnétique 30 et coopérant avec une came de guidage 30. Le doigt 28 s'étend coaxialement à l'orifice de distribution 27 de la coupelle 26 de sorte qu'en fonction des mouvements axiaux de l'armature magnétique 29, la bille 25 est soit en appui sur le bord de l'orifice de distribution 27 pour assurer une fermeture du conduit d'alimentation 18, soit écartée de cette position par le doigt 28 de sorte que du liquide sous pression peut s'écouler à travers l'orifice de distribution 27 dans le conduit de distribution 18.A distribution duct formed by a rectilinear tube 18 is mounted in the bore 14 and is held in place by an O-ring 19 compressed by a screwed bushing 20. The lower end of the distribution duct 18 extends inside. of the container in which it defines a distribution zone 21. The upper end 22 of the distribution duct 18 is fixed under the plate 7 and is connected to the supply manifold 1 by a bore 23, via a valve 24. In the illustrated embodiment the dispensing valve 24 comprises a ball 25 resting on a bowl 26 sealingly mounted across the distribution pipe 18 and having a dispensing orifice 27 having a diameter smaller than that of the ball 25. The ball 25 is operated by a magnetic actuator comprising a finger 28 carried by a cylindrical magnetic armature 29 disposed inside the distribution duct. 18 and whose position is determined by a magnetic ring 30 mounted axially movable to the distribution duct 18 and surrounding it at the level of the magnetic armature 29. The position of the magnetic ring is determined by an actuator comprising here a roller 31 fixed on the magnetic ring 30 and cooperating with a guide cam 30. The finger 28 extends coaxially with the dispensing orifice 27 of the cup 26 so that depending on the movements axial of the magnetic armature 29, the ball 25 is either resting on the edge of the dispensing orifice 27 to ensure a closure of the supply duct 18, or removed from this position by the finger 28 so that the liquid under pressure can flow through the dispensing orifice 27 into the dispensing duct 18.

À la partie inférieure de l'alésage 14 celui-ci comporte un décrochement 33 dans lequel est monté un tube 34 qui s'étend coaxialement au conduit de distribution 18 en étant espacé de celui-ci et qui s'étend vers le bas jusqu'à proximité de l'extrémité inférieure du conduit de distribution 18. À son extrémité supérieure, le tube 34 est percé d'un orifice 35 qui coïncide avec un perçage 36 dans le corps de bec 13. Le tube 34 et le perçage 36 définissent ainsi une partie d'un évent d'échappement dont l'extrémité supérieure débouche dans un organe de contrôle d'échappement 37.At the lower part of the bore 14, the latter comprises a recess 33 in which is mounted a tube 34 which extends coaxially with the distribution duct 18 and is spaced from it and which extends downwards to near the lower end of the dispensing duct 18. At its upper end, the tube 34 is pierced with an orifice 35 which coincides with a bore 36 in the spout body 13. The tube 34 and the piercing 36 thus define part of an exhaust vent whose upper end opens into an exhaust control member 37.

Dans le mode de réalisation illustré, l'organe de contrôle d'échappement 37 comporte un corps 38 comportant un perçage longitudinal 39. À son extrémité inférieure, le perçage 39 débouche dans un alésage 44 de plus grand diamètre que le perçage 39 de sorte que le décrochement entre le perçage 39 et l'alésage 44 définit un siège supérieur 45 pour un clapet pesant formé ici par une bille en acier 46. On entend par clapet pesant au sens de l'invention un clapet ayant une densité suffisante pour ne pas pouvoir être porté par le liquide à conditionner. La bille 46 est montée dans un guide de clapet de verrouillage d'échappement formé ici par une douille 47 ayant une paroi latérale 48 cylindrique de même diamètre que l'alésage 44, pourvue d'une collerette annulaire 49 ayant des dimensions identiques à un décrochement 50 de l'alésage 48 de sorte qu'après emmanchement à force de la douille 47 dans le corps 38 et fixation sur le corps 13 par des moyens non représentés, la douille 47 est montée de façon étanche dans le corps 38 et est appliquée de façon étanche sur le bloc 13. La douille 47 délimite ainsi avec l'alésage 48 une enceinte fermée 67 pourvue d'un orifice d'échappement 45.In the illustrated embodiment, the exhaust control member 37 comprises a body 38 having a longitudinal bore 39. At its lower end, the bore 39 opens into a bore 44 of larger diameter than the bore 39 so that the recess between the bore 39 and the bore 44 defines an upper seat 45 for a weighing valve formed here by a steel ball 46. For the purposes of the invention, the term "check valve" means a valve having a density that is not sufficient to be able to to be carried by the liquid to be conditioned. The ball 46 is mounted in an exhaust locking valve guide formed here by a sleeve 47 having a cylindrical side wall 48 of the same diameter as the bore 44, provided with an annular flange 49 having dimensions identical to a recess. 50 of the bore 48 so that after press fit of the sleeve 47 in the body 38 and attachment to the body 13 by means not shown, the sleeve 47 is sealingly mounted in the body 38 and is applied from waterproof way on the block 13. The sleeve 47 thus defines with the bore 48 a closed enclosure 67 provided with an exhaust port 45.

La douille 47 comporte un perçage central 51 coaxial au perçage 39 dans le corps 38 et de même diamètre que celui-ci. L'extrémité inférieure du perçage 51 coïncide avec l'extrémité supérieure du perçage 36 dans le bloc 13. En regard de l'extrémité inférieure du perçage 39 la douille 47 comporte un perçage supérieur 52, coaxial au perçage 51 formant un conduit de guidage pour la bille 46 et ayant un diamètre supérieur à celui de la bille, adapté pour que le jeu entre la bille 46 et le perçage 52 crée une perte de charge suffisante pour que la bille 46 soit repoussée à la façon d'un piston par du liquide arrivant par le perçage 36. En pratique un jeu de 0,5 dixième de mm à un dixième de mm est satisfaisant. Le décrochement entre le perçage 51 et l'alésage 52 définit un siège inférieur 55 pour la bille 46. De préférence le siège inférieur 55 est à une distance du siège supérieur telle que la course d de la bille 46 entre la position basse représentée en trait continu sur la figure 5, et la position haute représentée en tirets, soit au plus égale au rayon de la bille 46.The bushing 47 has a central bore 51 coaxial with the bore 39 in the body 38 and of the same diameter as the latter. The lower end of the bore 51 coincides with the upper end of the bore 36 in the block 13. Opposite the lower end of the bore 39 the bushing 47 has an upper bore 52, coaxial with the bore 51 forming a guide duct for the ball 46 and having a diameter greater than that of the ball, adapted so that the clearance between the ball 46 and the bore 52 creates a sufficient head loss so that the ball 46 is repelled in the manner of a piston by liquid arriving in the hole 36. In practice a set of 0.5 tenths of a mm to one tenth of a mm is satisfactory. The recess between the bore 51 and the bore 52 defines a lower seat 55 for the ball 46. Preferably the lower seat 55 is at a distance from the upper seat such that the stroke d of the ball 46 between the low position shown in the line. continuous on the figure 5 , and the high position shown in dashes, at most equal to the radius of the ball 46.

Par ailleurs, la douille 47 comporte un perçage radial 54, de même diamètre que le perçage 51, associé à une encoche latérale 53 ayant une section supérieure au perçage 51 pour délimiter, avec la paroi latérale 48 de l'enceinte 67 un conduit de court-circuit s'étendant en parallèle au conduit de guidage 52 et ayant une extrémité inférieure débouchant en dessous de la bille 46 et une extrémité supérieure débouchant au-dessus de la bille 46 lorsque celle-ci dans une position de repos en appui sur le siège inférieur 55. De préférence, le conduit de court-circuit a un volume supérieur à un volume balayé par le clapet de verrouillage d'échappement entre une position basse et une position haute.Moreover, the bushing 47 has a radial bore 54, of the same diameter as the bore 51, associated with a lateral notch 53 having a section greater than the bore 51 to delimit, with the lateral wall 48 of the enclosure 67 a short conduit. -circuit extending in parallel to the guide duct 52 and having a lower end opening below the ball 46 and an upper end opening above the ball 46 when the latter in a rest position resting on the seat lower 55. Preferably, the short circuit conduit has a volume greater than a volume swept by the exhaust lock valve between a low position and a high position.

En référence à la figure 3, le corps 38 comporte en outre un perçage 56 transversal au perçage 39 et associé à un alésage 57 dans lequel est vissé une douille 58 dont le conduit central 59 forme une partie de l'évent d'échappement et débouche à l'extérieur du corps 38 selon un orifice de mise à l'air libre 60. L'alésage 57 a un diamètre supérieur au perçage 56 et le décrochement ainsi réalisé forme un siège pour une bille 61 rappelée vers celui-ci par un ressort 62 disposé dans le conduit central de la douille 58, et dont la force d'appui est déterminée par le vissage de la douille 58. La douille 58, la bille 61 et le ressort 62 forment ainsi un clapet taré entre l'orifice d'échappement 45 et l'orifice de mise à l'air libre 60.With reference to the figure 3 , the body 38 further comprises a bore 56 transverse to the bore 39 and associated with a bore 57 in which is screwed a sleeve 58 whose central duct 59 forms part of the exhaust vent and opens out of the body 38 in a venting orifice 60. The bore 57 has a diameter greater than the bore 56 and the recess thus formed forms a seat for a ball 61 biased towards it by a spring 62 disposed in the central duct of the sleeve 58, and whose bearing force is determined by screwing The bushing 58, the ball 61 and the spring 62 thus form a valve calibrated between the exhaust port 45 and the vent port 60.

Toujours en référence à la figure 3, l'extrémité supérieure du perçage longitudinal 39 est équipée d'un organe d'injection de gaz sous pression comprenant une douille 40 dans laquelle est monté un clapet anti retour 41. La douille 40 est reliée à une source de gaz sous pression telle qu'une bouteille d'azote 42, par l'intermédiaire d'une vanne 43 dont la position est commandée par un organe de manoeuvre tel qu'un galet associé à une came, non représentés.Still referring to the figure 3 , the upper end of the longitudinal bore 39 is equipped with a pressurized gas injection member comprising a sleeve 40 in which is mounted a nonreturn valve 41. The sleeve 40 is connected to a pressurized gas source such that a nitrogen bottle 42, via a valve 43 whose position is controlled by an operating member such as a roller associated with a cam, not shown.

Par ailleurs, le bec remplissage selon l'invention comporte un conduit de liaison 63 débouchant d'une part dans le conduit de distribution 18 et d'autre part dans le perçage 39. Une vanne 64 est montée sur le conduit de liaison 63 et sa position est déterminée par un organe de commande tel qu'un galet 65 associé à une came escamotable 66.Furthermore, the filling nozzle according to the invention comprises a connecting duct 63 opening on the one hand into the dispensing duct 18 and on the other hand into the bore 39. A valve 64 is mounted on the connecting duct 63 and its position is determined by a control member such as a roller 65 associated with a retractable cam 66.

Le dispositif ainsi décrit sert à mettre en oeuvre le procédé selon l'invention comme décrit ci-dessous. Le clapet taré 61 est tout d'abord réglé pour fermer l'évent d'échappement selon un tarage à la pression d'échappement maximale que l'on souhaite atteindre dans le récipient au cours du remplissage, cette pression de tarage étant bien entendu inférieure à la pression de distribution. Un récipient à remplir est mis en appui sur la partie de liaison annulaire. Si nécessaire en fonction des conditions de remplissage recherchées, un gaz à une pression au plus égale à la pression d'échappement est injecté dans l'évent d'échappement. On remarquera à ce propos qu'en raison de son poids le clapet de verrouillage d'échappement 46 est normalement en appui sur le siège inférieur 55. En outre, en raison de l'existence du conduit de court-circuit 53 et de l'écart de dimension entre le perçage 51 et l'alésage 52, le clapet de verrouillage d'échappement est plaqué sur le siège inférieur 55 avec une force d'autant plus grande que la pression est plus élevée dans l'évent d'échappement.The device thus described serves to implement the method according to the invention as described below. The calibrated valve 61 is first set to close the exhaust vent according to a setting at the maximum exhaust pressure that is desired to reach the container during filling, this calibration pressure being of course lower. at the distribution pressure. A container to be filled is placed on the part of annular connection. If necessary depending on the desired filling conditions, a gas at a pressure at most equal to the exhaust pressure is injected into the exhaust vent. It should be noted in this regard that because of its weight the exhaust lock valve 46 is normally supported on the lower seat 55. In addition, because of the existence of the short circuit conduit 53 and the size difference between the bore 51 and the bore 52, the exhaust lock valve is plated on the lower seat 55 with a greater force as the pressure is higher in the exhaust vent.

Le clapet de distribution est ensuite ouvert et le liquide s'écoule alors dans le récipient à un débit qui est fonction de la différence entre la pression de distribution et la pression dans le récipient. Lorsque le liquide atteint l'extrémité inférieure du tube 34, comme illustré sur la figure 3, le liquide remonte dans l'évent d'échappement. Lorsqu'il atteint la douille 47, le liquide remonte simultanément dans le perçage 51 et dans le conduit de court-circuit 53 mais en raison de la différence de volume entre le conduit de court-circuit et le perçage 51, le liquide monte plus vite dans le perçage 51 que dans le conduit de court-circuit de sorte que le clapet de verrouillage d'échappement est poussé contre le siège supérieur 45 avant que le liquide l'atteigne par le conduit de court-circuit. Lorsque l'évent d'échappement est fermé par le clapet de verrouillage d'échappement 46, le liquide cesse de s'écouler dans le récipient. Le clapet de distribution 25 est alors fermé et le récipient est abaissé pour le dégager du joint 16. Le col du récipient est donc mis à l'air libre et en raison du gaz sous pression emprisonné entre le clapet taré 61 et le clapet de verrouillage d'échappement 46, ce dernier est poussé brusquement vers le bas et le liquide contenu dans l'évent d'échappement est chassé vers le récipient.The dispensing valve is then opened and the liquid then flows into the container at a rate which is a function of the difference between the dispensing pressure and the pressure in the container. When the liquid reaches the lower end of the tube 34, as shown in FIG. figure 3 , the liquid rises in the exhaust vent. When it reaches the bushing 47, the liquid rises simultaneously in the bore 51 and in the short-circuit conduit 53, but because of the difference in volume between the short-circuit conduit and the bore 51, the liquid rises faster. in the bore 51 only in the short circuit conduit so that the exhaust lock valve is pushed against the upper seat 45 before the liquid reaches it through the short circuit conduit. When the exhaust vent is closed by the exhaust lock valve 46, the liquid ceases to flow into the container. The dispensing valve 25 is then closed and the container is lowered to disengage it from the seal 16. The neck of the container is thus vented and because of the pressurized gas trapped between the calibrated valve 61 and the locking valve exhaust 46, the latter is pushed sharply downwards and the liquid contained in the exhaust vent is driven to the container.

Bien entendu l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention telle que définie par les revendications.Naturally, the invention is not limited to the embodiment described and variations can be made without departing from the scope of the invention as defined by the claims.

En particulier, bien que l'invention ait été décrite en relation avec un bec de remplissage relié à un dispositif d'injection d'un gaz sous pression, ce qui permet d'atteindre très rapidement une pression élevée à l'intérieur du récipient, on peut mettre en oeuvre le procédé selon l'invention sans injection préalable de gaz sous pression, la pression finalement atteinte dans le récipient étant seulement fonction de la quantité de liquide introduite dans le récipient et du tarage du clapet 61.In particular, although the invention has been described in relation to a filling spout connected to a device for injecting a pressurized gas, which makes it possible to very quickly reach a high pressure inside the container, the method according to the invention can be implemented without prior injection of gas under pressure, the pressure finally reached in the container being only a function of the quantity of liquid introduced into the container and the setting of the valve 61.

Bien que l'invention ait été décrite en relation avec un bec de remplissage comportant un tube de liaison 63 entre le conduit de distribution de liquide et l'évent d'échappement afin de simplifier le circuit de lavage et l'opération de lavage, on peut prévoir d'alimenter séparément en liquide de nettoyage le conduit de distribution d'une part, et l'évent d'échappement d'autre part en installant sur le bloc 37 un organe d'injection de liquide de nettoyage. Que le produit de lavage soit envoyé dans le circuit d'échappement par le conduit de liaison ou par un organe d'injection indépendant, il peut de toute façon être récupéré en dessous du bec de remplissage par un collecteur commun au conduit de distribution et à l'évent d'échappement.Although the invention has been described in connection with a filling spout comprising a connecting tube 63 between the liquid distribution duct and the exhaust vent in order to simplify the washing circuit and the washing operation, it is may provide to separately feed the cleaning of the distribution pipe on the one hand, and the exhaust vent on the other hand by installing on the block 37 a cleaning liquid injection member. Whether the washing product is sent into the exhaust circuit via the connecting pipe or by an independent injection member, it can in any case be recovered below the filling spout by a manifold common to the distribution duct and the exhaust vent.

Claims (10)

  1. Method for filling containers under pressure and to a constant level by means of a filling nozzle comprising:
    - an annular connection part (16) configured to provide a liquid-tight support with a neck (17) of a container, and to demarcate a distribution zone (21),
    - a distribution tube (18) connected to a source of supply of a liquid (4,5) under a distribution pressure by means of a distribution valve (24) and discharging into the distribution zone,
    - an exhaust duct (36,51,39,59) discharging on the one hand into the distribution zone, and on the other hand via a vent orifice (60), and
    - an exhaust check valve (46) controlled by a liquid level sensor in the exhaust duct, interposed in the exhaust duct between the distribution zone and the vent orifice, characterized in that it comprises the stages of:
    - closing the exhaust duct in a calibrated manner (61,62) according to a calibration to an exhaust pressure that is lower than the distribution pressure, between the exhaust check valve (46) and the vent orifice (60),
    - placing into position a container to be filled, resting against the annular connection part,
    - opening the distribution valve (24) and keeping it open until the closure of the exhaust check valve (46),
    - closing the distribution valve (24),
    - releasing the container from the annular connection part (16).
  2. Method for filling according to Claim 1, characterized in that it comprises in addition the stage of injecting into the exhaust duct, after placing a container in position, a gas at a pressure not exceeding the exhaust pressure.
  3. Method for filling according to Claim 2, characterized in that the injected gas is an inert gas.
  4. Filling nozzle comprising:
    - an annular connection part (16) configured to provide a liquid-tight support with the neck (17) of a container, and to demarcate a distribution zone (21),
    - a distribution tube (18) connected to a source of supply of a liquid (4,5) under a distribution pressure by means of a distribution valve (24) and discharging into the distribution zone,
    - an exhaust duct (36,51,39,59) discharging on the one hand into the distribution zone (21), and on the other hand via a vent orifice (60), and
    - an exhaust check valve (46) controlled by a liquid level sensor inside the exhaust duct, interposed in the exhaust duct between the distribution zone (21) and the vent orifice (60),
    characterized in that it comprises a calibrated valve (61) arranged to close the exhaust duct according to a calibration to an exhaust pressure that is lower than the distribution pressure and installed between the exhaust check valve (46) and the vent orifice (60).
  5. Filling nozzle according to Claim 4, characterized in that it comprises a gas injection device (41,42,43) arranged to permit the injection of gas into a container resting against the annular connection part.
  6. Filling nozzle according to Claim 5, characterized in that the gas injection device discharges into the exhaust duct (39) between the exhaust check valve (46) and the vent orifice (60).
  7. Filling nozzle according to Claim 4, characterized in that the exhaust duct comprises a part (34) extending in a concentric manner to the distribution tube (18).
  8. Filling nozzle according to Claim 4, characterized in that it comprises a connecting tube (63) discharging on the one hand into the distribution tube (18), and on the other hand into the exhaust duct (39), between the exhaust check valve and the vent orifice, and a valve (64) installed in the connecting tube.
  9. Filling nozzle according to Claim 4, characterized in that the exhaust check valve (46) is arranged inside a closed enclosure (67) having an upper wall comprising an exhaust orifice surrounded by an upper seat (45) for the exhaust check valve, in that the exhaust check valve (46) is a non-return valve installed in such a way as to slide in a valve guide (47) comprising a guide tube (52) having a lower extremity communicating with the exhaust duct and an upper extremity that is coaxial with the upper seat of the exhaust check valve, and in that the exhaust check valve is installed in the guide tube with a free play creating a sufficient loss of pressure for the exhaust check valve to be forced back in the manner of a piston by liquid penetrating into the enclosure via the exhaust duct.
  10. Filling nozzle according to Claim 4, characterized in that the distribution valve comprises a ball (25) actuated by a magnetic actuator comprising a finger (28) carried by a cylindrical magnetic armature in the interior of the distribution tube (18), a magnetic ring (30) installed in an axially mobile manner on the distribution tube and surrounding the latter at the level of the magnetic armature, and an actuating device (31,32) for the magnetic ring.
EP12759745.8A 2011-09-20 2012-09-19 Method and spout for constant-level filling with a liquid Not-in-force EP2758332B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1158372A FR2980185B1 (en) 2011-09-20 2011-09-20 METHOD FOR CONSTANTLY FILLING CONTAINERS WITH A FLAT OR GASEOUS LIQUID, AND FILLING FILLER FOR CARRYING OUT SAID METHOD
PCT/EP2012/068467 WO2013041586A1 (en) 2011-09-20 2012-09-19 Method and spout for constant-level filling with a liquid

Publications (2)

Publication Number Publication Date
EP2758332A1 EP2758332A1 (en) 2014-07-30
EP2758332B1 true EP2758332B1 (en) 2016-04-13

Family

ID=46875837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12759745.8A Not-in-force EP2758332B1 (en) 2011-09-20 2012-09-19 Method and spout for constant-level filling with a liquid

Country Status (5)

Country Link
US (1) US9133005B2 (en)
EP (1) EP2758332B1 (en)
BR (1) BR112014002416A2 (en)
FR (1) FR2980185B1 (en)
WO (1) WO2013041586A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103241695A (en) * 2013-05-17 2013-08-14 成都中牧生物药业有限公司 Automated liquid medicine filling device
FR3007015B1 (en) * 2013-06-17 2016-01-29 Serac Group INTEGRATED EVENT MULTI-JET FILLING SPOUT
US10988363B1 (en) * 2019-02-06 2021-04-27 Owens-Brockway Glass Container Inc. System for preventing dripping from nozzles in a container filling system
JP7457235B2 (en) * 2020-02-18 2024-03-28 澁谷工業株式会社 filling equipment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2794455A (en) * 1952-06-11 1957-06-04 Crown Cork & Seal Co Container filling machine with means to control the level of fill
DE1482630A1 (en) * 1965-12-29 1969-01-16 Holstein & Kappert Maschf Differential pressure filling valve
DE2062669A1 (en) * 1970-12-19 1972-06-22 Seitz-Werke Gmbh, 6550 Bad Kreuznach Device for shutting off the return gas line of counter-pressure filling organs on multi-chamber vessel filling machines
DE2260063A1 (en) * 1972-12-08 1974-06-12 Noll Maschfab Gmbh FILLING ORGAN FOR COUNTERPRESSURE FILLING MACHINES
ZA747323B (en) 1973-11-22 1976-07-28 L Wilksch Bottle filling means and method
DE2745642A1 (en) * 1977-10-11 1979-04-12 Holstein & Kappert Maschf FILLING ELEMENT FOR FILLING PIPE FILLING MACHINES
DE3008386C2 (en) * 1980-03-05 1986-01-16 Seitz Enzinger Noll Maschinenbau Ag, 6800 Mannheim Filling element for counter pressure filling machines
FR3007015B1 (en) * 2013-06-17 2016-01-29 Serac Group INTEGRATED EVENT MULTI-JET FILLING SPOUT

Also Published As

Publication number Publication date
US20130068344A1 (en) 2013-03-21
US9133005B2 (en) 2015-09-15
BR112014002416A2 (en) 2017-03-21
WO2013041586A1 (en) 2013-03-28
FR2980185B1 (en) 2014-02-28
FR2980185A1 (en) 2013-03-22
EP2758332A1 (en) 2014-07-30

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