EP0836582A1 - Filling nozzle inducing a laminar flow - Google Patents

Filling nozzle inducing a laminar flow

Info

Publication number
EP0836582A1
EP0836582A1 EP96924916A EP96924916A EP0836582A1 EP 0836582 A1 EP0836582 A1 EP 0836582A1 EP 96924916 A EP96924916 A EP 96924916A EP 96924916 A EP96924916 A EP 96924916A EP 0836582 A1 EP0836582 A1 EP 0836582A1
Authority
EP
European Patent Office
Prior art keywords
flow
control member
valve
filling spout
tubular body
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.)
Granted
Application number
EP96924916A
Other languages
German (de)
French (fr)
Other versions
EP0836582B1 (en
Inventor
André 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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Serac Group SAS filed Critical Serac Group SAS
Publication of EP0836582A1 publication Critical patent/EP0836582A1/en
Application granted granted Critical
Publication of EP0836582B1 publication Critical patent/EP0836582B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • B67C3/28—Flow-control devices, e.g. using valves
    • B67C3/286—Flow-control devices, e.g. using valves related to flow rate control, i.e. controlling slow and fast filling phases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/004—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • B67C3/28—Flow-control devices, e.g. using valves
    • B67C3/281—Profiled valve bodies for smoothing the flow at the outlet of the filling nozzle
    • 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
    • B67C2003/2671—Means for preventing foaming of the liquid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88038—One valve head carries other valve head

Definitions

  • the present invention relates to a filling spout with laminar flow.
  • filling spouts comprising a tubular body having a conical wall portion adjacent to a flow orifice, and a conical valve disposed opposite the conical wall portion and connected to a valve positioning control member.
  • the position of the valve relative to the tubular body is varied so as to increase or reduce the section of the space between the conical valve and the part of conical wall opposite.
  • Such devices are satisfactory from the point of view of flow regulation.
  • the valve is positioned to adjust the filling spout at a small flow rate, the space between the conical valve and the opposite conical wall portion is very small, and when the liquid to be dispensed is supplied under pressure.
  • the filling spout comprises a flow regulating member delimiting with a wall part opposite a passage having a variable section as a function of a position of the flow control member, the flow control member being connected to a position control member independent of the valve position control member .
  • the flow control member achieves a pressure drop which is all the greater as the flow is more reduced so that whatever the flow and whatever the flow speed at the level of the flow regulating member, it is possible to find a corresponding position of the valve which makes it possible to obtain a laminar flow at the outlet of the filling spout.
  • valve position control members and the flow control member extend parallel to each other. This minimizes the disturbances caused by the control members with respect to the flow of liquid in the filling spout.
  • the valve position control member comprises a control rod extending axially to the tubular body, and the position control member of the regulating member.
  • flow has a control tube surrounding the control rod.
  • the filling spout according to the preferred embodiment illustrated comprises a tubular body generally designated at 1 comprising three parts, a supply part 11 into which opens a supply duct 2 extending transversely. to the tubular body, a regulating part of flow 1.2 comprising a restriction 3, and an opening / closing part 1.3, the lower end of which comprises a flow orifice 4.
  • the terminal part 1.3 of the tubular body comprises a part of conical internal wall 5.
  • the sections 1.2 and 1.3 are connected to each other by fittings 6 allowing rapid disassembly and reassembly of the filling spout.
  • the filling spout comprises a valve 7 having a conical part 8 extending opposite the conical part 5 of the tubular body and connected to a control rod 9 which extends axially to inside the tubular body and is connected to an actuator not shown.
  • the filling spout comprises a flow control member 10 mounted to slide on the control rod 9 and associated with a control tube 11, the outer end of which includes lugs 12 extending radially and whose position is controlled by cams 13.
  • the flow control member 10 is returned elastically to a position of maximum opening by a spring 14 whose lower end takes support on the upper part of the tubular body and the upper end of which bears on the control pins 12.
  • the position of the valve 7 and the position of the flow regulating member 10 can be controlled independently so that it is possible to operate the filling spout while always arranging the valve 7 relative to the wall 5 in a position such that the flow in the interval between the conical part 8 of the valve 7 and the conical part 5 of the tubular body 1 is always brought back to a laminar regime while the flow regulating member 10 makes it possible to adjust the flow rate which finally flows through the flow orifice 4.
  • the transverse position of the supply orifice 2 promotes optimal flow through the filling spout minimizing the risk of a vortex forming inside the filling spout.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Lift Valve (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Nozzles (AREA)
  • Flow Control (AREA)

Abstract

A spout comprising a tubular housing (1) with a tapered wall portion (5) adjacent to an outlet port (4), a tapered valve (7) located opposite the tapered wall portion (5) and connected to a position control member (9), and a flow control member (10) arranged upstream from the valve (7) relative the flow direction of the material, and connected to a position control member (11) separate from the position control member of the valve.

Description

Bec de remplissage à écoulement laminaire. Laminar flow filling spout.
La présente invention concerne un bec de remplis¬ sage à écoulement laminaire.The present invention relates to a filling spout with laminar flow.
On connaît des becs de remplissage comportant un corps tubulaire ayant une partie de paroi conique adjacente à un orifice d'écoulement, et un clapet conique disposé en regard de la partie de paroi conique et relié à un organe de commande de positionnement du clapet. Lorsque l'on souhaite faire varier le débit de liquide distribué par le bec de remplissage on fait varier la position du clapet par rapport au corps tubulaire de façon à accroître ou réduire la section de l'espace compris entre le clapet conique et la partie de paroi conique en regard. De tels dispositifs sont satisfaisants du point de vue de la régulation de débit. Toutefois, lorsque le clapet est positionné pour régler le bec de remplissage à un petit débit, l'espace entre le clapet conique et la partie de paroi conique en regard est de très faible largeur, et lorsque le liquide à distribuer est alimenté sous une pression élevée il s'ensuit une augmentation importante de la vitesse du liquide dans le passage restreint, ce qui crée un écoule¬ ment turbulent générateur de mousse et dont la forme est difficilement contrôlable de sorte qu'il risque de provo¬ quer des éclaboussures au-delà du goulot du récipient recevant le liquide. Selon l'invention on propose un bec de remplis¬ sage du type précité dans lequel, en amont du clapet par référence à un sens d'écoulement de produit, le bec de remplissage comporte un organe de régulation de débit délimitant avec une partie de paroi en regard un passage ayant une section variable en fonction d'une position de l'organe de régulation de débit, l'organe de régulation de débit étant relié à un organe de commande de position indépendant de l'organe de commande de position du clapet.There are known filling spouts comprising a tubular body having a conical wall portion adjacent to a flow orifice, and a conical valve disposed opposite the conical wall portion and connected to a valve positioning control member. When it is desired to vary the flow rate of liquid distributed by the filling spout, the position of the valve relative to the tubular body is varied so as to increase or reduce the section of the space between the conical valve and the part of conical wall opposite. Such devices are satisfactory from the point of view of flow regulation. However, when the valve is positioned to adjust the filling spout at a small flow rate, the space between the conical valve and the opposite conical wall portion is very small, and when the liquid to be dispensed is supplied under pressure. high, this results in a significant increase in the speed of the liquid in the restricted passage, which creates a turbulent foam-generating flow and the shape of which is difficult to control, so that it risks causing spattering. beyond the neck of the container receiving the liquid. According to the invention there is provided a wise filling spout of the aforementioned type in which, upstream of the valve by reference to a direction of flow of product, the filling spout comprises a flow regulating member delimiting with a wall part opposite a passage having a variable section as a function of a position of the flow control member, the flow control member being connected to a position control member independent of the valve position control member .
Ainsi, l'organe de régulation de débit réalise une perte de charge qui est d'autant plus forte que le débit est plus réduit de sorte que quel que soit le débit et quelle que soit la vitesse d'écoulement au niveau de l'organe de régulation de débit, il est possible de trouver une position correspondante du clapet qui permette d'obte- nir un écoulement laminaire à la sortie du bec de remplis¬ sage.Thus, the flow control member achieves a pressure drop which is all the greater as the flow is more reduced so that whatever the flow and whatever the flow speed at the level of the flow regulating member, it is possible to find a corresponding position of the valve which makes it possible to obtain a laminar flow at the outlet of the filling spout.
Selon une version avantageuse de l'invention les organes de commande de position du clapet et de l'organe de régulation de débit s'étendent parallèlement l'un à l'autre. On minimise ainsi les perturbations engendrées par les organes de commande vis à vis de l'écoulement du liquide dans le bec de remplissage.According to an advantageous version of the invention, the valve position control members and the flow control member extend parallel to each other. This minimizes the disturbances caused by the control members with respect to the flow of liquid in the filling spout.
Selon un mode de réalisation préféré de l'inven¬ tion, l'organe de commande de position du clapet comprend une tige de commande s'étendant axialement au corps tubulaire, et l'organe de commande de position de l'organe de régulation de débit comporte un tube de commande entourant la tige de commande. Ainsi, on supprime tout élément s'étendant en travers de l'écoulement et on minimise encore les perturbations de l'écoulement.According to a preferred embodiment of the invention, the valve position control member comprises a control rod extending axially to the tubular body, and the position control member of the regulating member. flow has a control tube surrounding the control rod. Thus, any element extending across the flow is eliminated and the flow disturbances are further minimized.
D'autres caractéristiques et avantages de l'in¬ vention apparaîtront à la lecture de la description qui suit d'un mode de réalisation particulier non limitatif de l'invention, en relation avec la figure unique ci-jointe qui est une vue en coupe axiale d'un bec de remplissage selon l'invention, la moitié de gauche étant illustrée dans une position de faible débit de l'organe de régulation de débit tandis que la moitié de droite est illustrée dans une position de fort débit de l'organe de régulation de débit. En référence à la figure, le bec de remplissage selon le mode de réalisation préféré illustré comporte un corps tubulaire généralement désigné en 1 comprenant trois parties, une partie d'alimentation l.l dans laquelle débouche un conduit d'alimentation 2 s'étendant transversa- lement au corps tubulaire, une partie de régulation de débit 1.2 comportant une restriction 3, et une partie d'ouverture/fermeture 1.3 dont l'extrémité inférieure comporte un orifice d'écoulement 4. En amont de l'orifice d'écoulement 4, la partie terminale 1.3 du corps tubulaire comporte une partie de paroi interne conique 5. Les tronçons 1.2 et 1.3 sont reliés les uns aux autres par des raccords 6 permettant un démontage et un remontage rapide du bec de remplissage.Other characteristics and advantages of the invention will appear on reading the following description of a particular non-limiting embodiment of the invention, in relation to the single attached figure which is a sectional view axial of a filling spout according to the invention, the left half being illustrated in a position of low flow of the flow regulating member while the right half is illustrated in a position of high flow of the member flow control. Referring to the figure, the filling spout according to the preferred embodiment illustrated comprises a tubular body generally designated at 1 comprising three parts, a supply part 11 into which opens a supply duct 2 extending transversely. to the tubular body, a regulating part of flow 1.2 comprising a restriction 3, and an opening / closing part 1.3, the lower end of which comprises a flow orifice 4. Upstream of the flow orifice 4, the terminal part 1.3 of the tubular body comprises a part of conical internal wall 5. The sections 1.2 and 1.3 are connected to each other by fittings 6 allowing rapid disassembly and reassembly of the filling spout.
A l'intérieur du bec de remplissage, celui-ci comporte un clapet 7 ayant une partie conique 8 s'étendant en regard de la partie conique 5 du corps tubulaire et relié à une tige de commande 9 qui s'étend de façon axiale à l'intérieur du corps tubulaire et est reliée à un organe d'actionnement non représenté. En regard de la restriction 3, le bec de remplis¬ sage comporte un organe de régulation de débit 10 monté pour coulisser sur la tige de commande 9 et associé à un tube de commande 11 dont l'extrémité extérieure comporte des ergots 12 s'étendant radialement et dont la position est commandée par des cames 13. Dans le mode de réalisation préféré illustré, l'organe de régulation de débit 10 est rappelé de façon élastique vers une position d'ouverture maximale par un ressort 14 dont l'extrémité inférieure prend appui sur la partie supérieure du corps tubulaire et dont l'extrémité supérieure prend appui sur les ergots de commande 12.Inside the filling spout, this comprises a valve 7 having a conical part 8 extending opposite the conical part 5 of the tubular body and connected to a control rod 9 which extends axially to inside the tubular body and is connected to an actuator not shown. Opposite restriction 3, the filling spout comprises a flow control member 10 mounted to slide on the control rod 9 and associated with a control tube 11, the outer end of which includes lugs 12 extending radially and whose position is controlled by cams 13. In the preferred embodiment illustrated, the flow control member 10 is returned elastically to a position of maximum opening by a spring 14 whose lower end takes support on the upper part of the tubular body and the upper end of which bears on the control pins 12.
Il résulte de cette structure que la position du clapet 7 et la position de l'organe de régulation de débit 10 peuvent être commandées indépendamment de sorte qu'il est possible de faire fonctionner le bec de remplissage en disposant toujours le clapet 7 par rapport à la paroi 5 dans une position telle que l'écoulement dans l'intervalle entre la partie conique 8 du clapet 7 et la partie conique 5 du corps tubulaire 1 soit toujours ramenée à un régime laminaire tandis que l'organe de régulation de débit 10 permet de régler le débit qui s'écoule finalement à travers l'orifice d'écoulement 4. On notera à ce propos que la position transversale de l'orifice d'alimentation 2 favorise un écoulement optimal à travers le bec de remplis- sage en minimisant le risque de constitution d'un vortex à l'intérieur du bec de remplissage.It follows from this structure that the position of the valve 7 and the position of the flow regulating member 10 can be controlled independently so that it is possible to operate the filling spout while always arranging the valve 7 relative to the wall 5 in a position such that the flow in the interval between the conical part 8 of the valve 7 and the conical part 5 of the tubular body 1 is always brought back to a laminar regime while the flow regulating member 10 makes it possible to adjust the flow rate which finally flows through the flow orifice 4. It will be noted in this connection that the transverse position of the supply orifice 2 promotes optimal flow through the filling spout minimizing the risk of a vortex forming inside the filling spout.
Le rappel de l'organe de régulation de débit vers une position d'ouverture maximale par le ressort 14 permet de s'assurer qu'en l'absence de commande de régulation du débit, par exemple lors du nettoyage du bec de remplissage, le débit maximal de liquide peut s'écouler à travers le bec de remplissage.The return of the flow control member to a position of maximum opening by the spring 14 makes it possible to ensure that in the absence of a flow control control, for example when cleaning the filling spout, the Maximum liquid flow can flow through the filling spout.
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'inven¬ tion tel que défini par les revendications.Of course, the invention is not limited to the embodiment described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims.
En particulier, bien que l'invention ait été décrite avec des organes de commande mécaniques, on peut prévoir des organes de commande magnétiques permettant de supprimer les joints d'étanchéité 15 et 16 respectivement disposés entre le corps tubulaire et le tube de commande il d'une part, et entre l'organe de régulation de débit 10 et la tige de commande 9 d'autre part. In particular, although the invention has been described with mechanical control members, it is possible to provide magnetic control members making it possible to eliminate the seals 15 and 16 respectively disposed between the tubular body and the control tube il on the one hand, and between the flow control member 10 and the control rod 9 on the other hand.

Claims

REVENDICATIONS
1. Bec de remplissage comportant un corps tubu¬ laire (1) ayant au moins une partie de paroi conique (5) adjacente à un orifice d'écoulement (4) et un clapet conique (7) disposé en regard de la partie de paroi conique (5) et relié à un organe de commande de position (9) du clapet caractérisé en ce qu'en amont du clapet par réfé¬ rence à un sens d'écoulement de produit, le bec de remplis¬ sage comporte un organe de régulation de débit (10) délimitant avec une partie de paroi en regard un passage ayant une section variable en fonction d'une position de l'organe de régulation de débit (10) , et en ce que l'organe de régulation de débit (10) est relié à un organe de commande de position (11) indépendant de l'organe de commande de position du clapet.1. Filling spout comprising a tubular body (1) having at least one conical wall part (5) adjacent to a flow orifice (4) and a conical valve (7) disposed opposite the wall part conical (5) and connected to a position control member (9) of the valve, characterized in that upstream of the valve by reference to a direction of flow of product, the filling spout comprises a member for flow control (10) delimiting with a facing wall portion a passage having a variable section depending on a position of the flow control member (10), and in that the flow control member ( 10) is connected to a position control member (11) independent of the valve position control member.
2. Bec de remplissage selon la revendication 1, caractérisé en ce que les organes de commande de position du clapet et de l'organe de régulation de débit s'étendent parallèlement l'un à l'autre. 2. Filling spout according to claim 1, characterized in that the valve position control members and the flow control member extend parallel to each other.
3. Bec de remplissage selon la revendication 1, caractérisé en ce que l'organe de commande de position du clapet comprend une tige de commande (9) s'étendant axialement au corps tubulaire (1) et en ce que l'organe de commande de position de l'organe de régulation de débit (10) comporte un tube de commande (11) entourant la tige de commande (9) .3. filling spout according to claim 1, characterized in that the valve position control member comprises a control rod (9) extending axially to the tubular body (1) and in that the control member position of the flow control member (10) comprises a control tube (11) surrounding the control rod (9).
4. Bec de remplissage selon la revendication 1, caractérisé en ce qu'il comporte un organe de rappel (14) de l'organe de régulation de débit (10) vers une position d'ouverture maximale.4. Filling spout according to claim 1, characterized in that it comprises a return member (14) of the flow control member (10) to a maximum open position.
5. Bec de remplissage selon la revendication 1, caractérisé en ce qu'il comporte un conduit d'alimentation (2) s'étendant transversalement au corps tubulaire. 5. Filling spout according to claim 1, characterized in that it comprises a supply duct (2) extending transversely to the tubular body.
EP96924916A 1995-07-05 1996-07-02 Filling nozzle inducing a laminar flow Expired - Lifetime EP0836582B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9508106A FR2736339B1 (en) 1995-07-05 1995-07-05 LAMINAR FLOW FILLING SPOUT
FR9508106 1995-07-05
PCT/FR1996/001024 WO1997002207A1 (en) 1995-07-05 1996-07-02 Laminar-flow filling spout

Publications (2)

Publication Number Publication Date
EP0836582A1 true EP0836582A1 (en) 1998-04-22
EP0836582B1 EP0836582B1 (en) 1999-01-27

Family

ID=9480700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96924916A Expired - Lifetime EP0836582B1 (en) 1995-07-05 1996-07-02 Filling nozzle inducing a laminar flow

Country Status (8)

Country Link
US (1) US5816456A (en)
EP (1) EP0836582B1 (en)
JP (1) JP2966109B2 (en)
BR (1) BR9609438A (en)
DE (1) DE69601471T2 (en)
ES (1) ES2128869T3 (en)
FR (1) FR2736339B1 (en)
WO (1) WO1997002207A1 (en)

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Also Published As

Publication number Publication date
DE69601471T2 (en) 1999-08-19
JPH10511918A (en) 1998-11-17
WO1997002207A1 (en) 1997-01-23
FR2736339B1 (en) 1997-08-29
BR9609438A (en) 1999-11-03
JP2966109B2 (en) 1999-10-25
DE69601471D1 (en) 1999-03-11
EP0836582B1 (en) 1999-01-27
ES2128869T3 (en) 1999-05-16
US5816456A (en) 1998-10-06
FR2736339A1 (en) 1997-01-10

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