EP0836581B1 - Filling nozzle inducing a laminar flow - Google Patents
Filling nozzle inducing a laminar flow Download PDFInfo
- Publication number
- EP0836581B1 EP0836581B1 EP96924915A EP96924915A EP0836581B1 EP 0836581 B1 EP0836581 B1 EP 0836581B1 EP 96924915 A EP96924915 A EP 96924915A EP 96924915 A EP96924915 A EP 96924915A EP 0836581 B1 EP0836581 B1 EP 0836581B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubular body
- flow
- annular space
- calibration
- valve member
- 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.)
- Expired - Lifetime
Links
- 230000001939 inductive effect Effects 0.000 title 1
- 239000000945 filler Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 3
- 238000004513 sizing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
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
Definitions
- the invention relates to a filling spout and, in particular although not exclusively, a filling spout for a weight metering machine.
- a spout filler producing a high flow of liquid in laminar regime.
- This spout has a tubular body and a mobile calibrator inside the body between a low position in which it closes an orifice of body flow and a high position in which it allows the liquid to flow.
- This annular space has sufficient length relative to the width of the annular space taken in a direction radial at the flow orifice to obtain a laminar flow even at high flow rates.
- a calibration member having a low taper i.e. the angle of the lateral surface relative to the axis is weak.
- the calibration part comes to bear on the edge of the flow hole to ensure the closure of the spout.
- a weak conicity of the calibration part involves a large stroke of the organ for full opening of the spout filling.
- an important race of the organ calibration is incompatible with the control usually used to adjust the position of the calibration body
- An object of the invention is to provide a spout filling producing a high flow jet laminar and having a valve having a compatible stroke with conventional controls.
- a filling spout comprising a body tubular having a sizing portion and terminated by a outlet, and a movable valve inside the tubular body and having a conical sizing portion followed by a terminal part with a decreasing section faster than the calibration part, the part for calibrating the tubular body and the calibration part of the valve delimiting between them an annular space of decreasing section towards the flow orifice of the tubular body, this annular space having relative to the width taken in a radial direction at a lower end of the annular space a length sufficient to obtain laminar flow in the annular space in which the calibration part of the valve at a lower end having a larger radius to the radius of the flow opening.
- the filling spout has a tubular body 2 having a flow opening 3 for the outlet of the liquid to be packaged.
- the spout further includes a valve 4 movable inside the tubular body along an axis vertical 6 of it.
- the left half of the figure shows the valve 4 in the low position in a position the lower hole 3.
- the right half of the figure shows the valve in the high position in a position allowing maximum liquid flow to condition.
- the tubular body 2 comprises a conical calibration part 8.
- the valve 4 comprises a conical calibration part 10 of the same conicity as the calibration part 8.
- These two parts 8 and 10 define between them an annular space of decreasing section in the direction of the flow orifice 3.
- This annular space has a length L along the axis 6 preferably at least equal to about eight times the width l of a lower end of the annular space taken in a radial direction.
- the tubular body 2 has an end portion 12 adjacent to the lower orifice 3.
- the valve 4 has a terminal portion 14, conical in the mode of illustrated embodiment and having a taper greater than that of the calibration part 10 of the tubular body 2.
- the end portion 14 forms a 60 ° angle with the axis while the calibration part conical 10 forms an angle of 16 ° with the axis.
- the radius R of the part of 10 calibration at the lower end of the annular space is greater than the radius r of the orifice flow 3 of the tubular body so that the part terminal 14 closes the lower opening 3 when it comes in contact with the terminal part 12 of the body 2.
- the strong taper of the end part makes it possible to obtain a very rapid variation of the flow rate when moving the valve and therefore obtain maximum flow for low valve stroke.
- the taper of the end portion 14 is calculated so that at the end of the opening race this part is fully contained within the tubular body without protruding from the flow orifice 3 and the calibration part 12 has a curved S-shaped profile according to a section through an axial plane.
- This profile presents two opposite curvatures, a concave upper curvature adjoining the conical calibration part 8, and a convex lower curvature adjacent to the flow port 3.
- This curved S-shaped profile favors the conservation of laminar flow to the flow orifice even if the flow section increases in the area between the end bottom of the annular space and the flow hole 3.
- such a curve also makes it possible to adapt easily the filling spout at different flow rates maximum by simply changing the bottom of the tubular body while retaining the same valve.
- the lower part of the body tubular is preferably removable as illustrated on the figure.
- the part terminal of the valve may have a shape other than conical, for example a curved profile following the profile curve of the end part of the tubular body 2.
- the end part of the tubular body 2 may have a conical shape whose conicity can be close to or identical to the taper of the terminal part of the valve.
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)
- Sampling And Sample Adjustment (AREA)
- Lift Valve (AREA)
Description
L'invention concerne un bec de remplissage et, en particulier bien que non exclusivement, un bec de remplissage pour une machine à dosage pondéral.The invention relates to a filling spout and, in particular although not exclusively, a filling spout for a weight metering machine.
Dans le domaine du remplissage de récipients par dosage pondéral, on connaít du document FR-2 688 196 un bec de remplissage produisant un jet de liquide à débit élevé en régime laminaire. Ce bec comporte un corps tubulaire et un organe de calibrage mobile à l'intérieur du corps entre une position basse dans laquelle il obture un orifice d'écoulement du corps et une position haute dans laquelle il permet l'écoulement du liquide. Une partie de paroi interne conique du corps tubulaire adjacente à l'orifice d'écoulement et une partie de calibrage conique de l'organe de calibrage délimitent entre elles un espace annulaire de section décroissante jusqu'à l'orifice d'écoulement. Cet espace annulaire a une longueur suffisante par rapport à la largeur de l'espace annulaire prise selon une direction radiale au niveau de l'orifice d'écoulement pour obtenir un écoulement laminaire même pour des débits élevés. Afin de minimiser le diamètre du bec de remplissage il est préférable de réaliser un organe de calibrage ayant une faible conicité, c'est-à-dire dont l'angle de la surface latérale par rapport à l'axe est faible. Cependant il est prévu dans le document cité que la partie de calibrage vienne en appui sur le bord de l'orifice d'écoulement pour assurer la fermeture du bec. Dans ce cas une faible conicité de la partie de calibrage implique une grande course de l'organe de calibrage pour obtenir une pleine ouverture du bec de remplissage. Par ailleurs une course importante de l'organe de calibrage est incompatible avec les dispositifs de commande habituellement utilisés pour régler la position de l'organe de calibrageIn the field of filling containers with weight dosage, we know from document FR-2 688 196 a spout filler producing a high flow of liquid in laminar regime. This spout has a tubular body and a mobile calibrator inside the body between a low position in which it closes an orifice of body flow and a high position in which it allows the liquid to flow. Part of the wall internal conical tubular body adjacent to the orifice flow and a conical calibration part of the organ calibrating between them an annular space of decreasing section up to the flow opening. This annular space has sufficient length relative to the width of the annular space taken in a direction radial at the flow orifice to obtain a laminar flow even at high flow rates. In order to minimize the diameter of the filling spout it is preferable to achieve a calibration member having a low taper, i.e. the angle of the lateral surface relative to the axis is weak. However it is foreseen in the cited document that the calibration part comes to bear on the edge of the flow hole to ensure the closure of the spout. In this case a weak conicity of the calibration part involves a large stroke of the organ for full opening of the spout filling. In addition an important race of the organ calibration is incompatible with the control usually used to adjust the position of the calibration body
Un but de l'invention est de proposer un bec de remplissage produisant un jet à débit élevé en régime laminaire et comportant un clapet ayant une course compatible avec les organes de commande conventionnels.An object of the invention is to provide a spout filling producing a high flow jet laminar and having a valve having a compatible stroke with conventional controls.
En vue de la réalisation de ce but, on propose selon l'invention un bec de remplissage comportant un corps tubulaire ayant une partie de calibrage et terminé par un orifice d'écoulement, et un clapet mobile à l'intérieur du corps tubulaire et ayant une partie de calibrage conique suivie d'une partie terminale ayant une section décroissant de façon plus rapide que la partie de calibrage, la partie de calibrage du corps tubulaire et la partie de calibrage du clapet délimitant entre elles un espace annulaire de section décroissante en direction de l'orifice d'écoulement du corps tubulaire, cet espace annulaire ayant par rapport à la largeur prise selon une direction radiale à une extrémité inférieure de l'espace annulaire une longueur suffisante pour obtenir un écoulement laminaire dans l'espace annulaire dans lequel la partie de calibrage du clapet a une extrémité inférieure ayant un rayon supérieur au rayon de l'orifice d'écoulement.In order to achieve this goal, it is proposed according to the invention a filling spout comprising a body tubular having a sizing portion and terminated by a outlet, and a movable valve inside the tubular body and having a conical sizing portion followed by a terminal part with a decreasing section faster than the calibration part, the part for calibrating the tubular body and the calibration part of the valve delimiting between them an annular space of decreasing section towards the flow orifice of the tubular body, this annular space having relative to the width taken in a radial direction at a lower end of the annular space a length sufficient to obtain laminar flow in the annular space in which the calibration part of the valve at a lower end having a larger radius to the radius of the flow opening.
Ainsi la forte décroissance de la section de la partie terminale permet d'obtenir un débit maximum avec une faible course du clapet et il a été constaté que de façon surprenante l'augmentation de section qui en résultait immédiatement en amont de l'orifice d'écoulement ne détruisait pas le régime laminaire de l'écoulement obtenu par la partie de calibrage. L'invention réalise ainsi un compromis entre les conditions d'un écoulement optimum et les contraintes industrielles.Thus the sharp decrease in the cross-section of the end part allows maximum flow to be obtained with a short valve stroke and it was found that so surprising the resulting increase in section immediately upstream of the flow opening does not destroy the laminar flow regime obtained by the calibration part. The invention thus achieves a compromise between the conditions for optimum flow and industrial constraints.
D'autres caractéristiques et avantages de l'invention apparaítront encore dans la description qui va suivre d'un mode de réalisation non limitatif de l'invention, en référence à la figure unique ci-jointe qui est une vue en coupe axiale du bec de remplissage selon l'invention.Other characteristics and advantages of the invention will appear again in the description which follows follow a nonlimiting embodiment of the invention, with reference to the attached single figure which is a view in axial section of the filling spout according to the invention.
Le bec de remplissage comporte un corps tubulaire
2 présentant un orifice d'écoulement 3 pour la sortie du
liquide à conditionner. Le bec comporte en outre un clapet
4 mobile à l'intérieur du corps tubulaire suivant un axe
vertical 6 de celui-ci. La moitié gauche de la figure
montre le clapet 4 en position basse dans une position
d'obturation de l'orifice inférieur 3. La moitié droite de
la figure montre le clapet en position haute dans une
position permettant l'écoulement maximum du liquide à
conditionner.The filling spout has a
Le corps tubulaire 2 comporte une partie de
calibrage conique 8. Le clapet 4 comporte une partie de
calibrage conique 10 de même conicité que la partie de
calibrage 8. Ces deux parties 8 et 10 délimitent entre
elles un espace annulaire de section décroissante en
direction de l'orifice d'écoulement 3. Cet espace annulaire
a une longueur L suivant l'axe 6 de préférence au moins
égale à environ huit fois la largeur l d'une extrémité
inférieure de l'espace annulaire prise selon une direction
radiale. Ces conditions dimensionnelles permettent d'obtenir
un écoulement laminaire à la sortie de l'espace
annulaire quel que soit le régime de l'écoulement en amont
de l'espace annulaire.The
Le corps tubulaire 2 présente une partie terminale
12 adjacente à l'orifice inférieur 3. Le clapet 4
présente une partie terminale 14, conique dans le mode de
réalisation illustré et ayant une conicité supérieure à
celle de la partie de calibrage 10 du corps tubulaire 2.
Ici à titre d'exemple, la partie terminale 14 forme un
angle de 60° avec l'axe alors que la partie de calibrage
conique 10 forme un angle de 16° avec l'axe.The
Selon l'invention, le rayon R de la partie de
calibrage 10 au niveau de l'extrémité inférieure de
l'espace annulaire est supérieur au rayon r de l'orifice
d'écoulement 3 du corps tubulaire de sorte que la partie
terminale 14 obture l'orifice inférieur 3 lorsqu'elle vient
en contact avec la partie terminale 12 du corps 2. La forte
conicité de la partie terminale permet d'obtenir une
variation très rapide du débit lors d'un déplacement du
clapet et donc d'obtenir un débit maximum pour une faible
course du clapet. Dans le mode de réalisation préféré
illustré, la conicité de la partie terminale 14 est
calculée pour qu'en fin de course d'ouverture cette partie
terminale soit intégralement contenue à l'intérieur du
corps tubulaire sans dépasser de l'orifice d'écoulement 3
et la partie de calibrage 12 a un profil courbe en S selon
une coupe par un plan axial. Ce profil présente deux
courbures opposées, une courbure supérieure concave
contiguë à la partie de calibrage conique 8, et une
courbure inférieure convexe adjacente à l'orifice d'écoulement
3. Ce profil courbe en S favorise la conservation du
régime laminaire jusqu'à l'orifice d'écoulement même si la
section d'écoulement s'accroít dans la zone entre l'extrémité
inférieure de l'espace annulaire et l'orifice d'écoulement
3. En association avec la forme conique de la partie
terminale 14, une telle courbe permet en outre d'adapter
facilement le bec de remplissage à différents débits
maximum en changeant simplement la partie inférieure du
corps tubulaire tout en conservant le même clapet. On
notera à ce propos que la partie inférieure du corps
tubulaire est de préférence amovible comme illustré sur la
figure.According to the invention, the radius R of the part of
10 calibration at the lower end of
the annular space is greater than the radius r of the
Bien entendu on pourra apporter de nombreuses
modifications à l'invention sans sortir du cadre de
celle-ci défini par les revendications annexées. La partie
terminale du clapet pourra avoir une forme autre que
conique, par exemple un profil courbe suivant le profil
courbe de la partie terminale du corps tubulaire 2. A
l'inverse, la partie terminale du corps tubulaire 2 pourra
avoir une forme conique dont la conicité pourra être
voisine ou identique à la conicité de la partie terminale
du clapet.Of course we can bring many
modifications to the invention without departing from the scope of
this defined by the appended claims. The part
terminal of the valve may have a shape other than
conical, for example a curved profile following the profile
curve of the end part of the
Claims (5)
- A filler spout comprising a tubular (2) having a calibration portion (8) and terminated by a flow orifice (3), and a valve member (4) movable inside the tubular body and having a conical calibration portion (10) followed by a terminal portion (14) of section that decreases more quickly than in the calibration portion (10), the calibration portion (8) of the tubular body and the calibration portion (10) of the valve member cooperating to define between them an annular space of section that decreases towards the flow orifice (3) of the tubular body, said annular space being of a length (L) relative to its width (l) measured in a radial direction at the bottom end of the annular space that is sufficient to obtain a laminar flow in the annular space, the spout being characterized in that the calibration portion (10) of the valve member (4) has a bottom end of radius (R) greater than the radius (r) of the flow orifice.
- A filler spout according to claim 1, characterized in that the terminal portion (14) of the valve member is of a length that is appropriate for the terminal portion (14) to be completely contained inside the tubular body (2) when the valve member is at the end of its opening stroke.
- A filler spout according to claim 1, characterized in that, in section on an axial plane, the tubular body has a terminal portion (12) with an S-shaped profile.
- A filler spout according to claim 3, characterized in that the tubular body includes a removable bottom portion.
- A filler spout according to claim 1, characterized in that the terminal portion (14) of the valve member is conical.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9508104A FR2736338B1 (en) | 1995-07-05 | 1995-07-05 | LAMINAR FLOW FILLING SPOUT |
| FR9508104 | 1995-07-05 | ||
| PCT/FR1996/001023 WO1997002206A1 (en) | 1995-07-05 | 1996-07-02 | Laminar-flow filling spout |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0836581A1 EP0836581A1 (en) | 1998-04-22 |
| EP0836581B1 true EP0836581B1 (en) | 1999-01-27 |
Family
ID=9480698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96924915A Expired - Lifetime EP0836581B1 (en) | 1995-07-05 | 1996-07-02 | Filling nozzle inducing a laminar flow |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0836581B1 (en) |
| BR (1) | BR9609437A (en) |
| DE (1) | DE69601469T2 (en) |
| ES (1) | ES2128868T3 (en) |
| FR (1) | FR2736338B1 (en) |
| WO (1) | WO1997002206A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1010562C2 (en) * | 1998-11-16 | 2000-05-17 | Stork Bp & L Bv | Fill valve. |
| ES2307366B1 (en) | 2006-01-20 | 2009-09-18 | Antonio Mengibar, S.A. | FILLING HEAD OF LOW NUMBER OF REYNOLDS. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1242592B (en) * | 1990-10-12 | 1994-05-16 | Azionaria Costruzioni Acma Spa | DOSER-DISPENSER DEVICE FOR FILLING MACHINES. |
| US5137187A (en) * | 1991-02-20 | 1992-08-11 | H.G. Kalish | Anti-spray fluid dispensing nozzle |
| FR2688196B1 (en) * | 1992-03-03 | 1994-04-29 | Serac Group | FILLING SPOUT. |
-
1995
- 1995-07-05 FR FR9508104A patent/FR2736338B1/en not_active Expired - Lifetime
-
1996
- 1996-07-02 ES ES96924915T patent/ES2128868T3/en not_active Expired - Lifetime
- 1996-07-02 BR BR9609437A patent/BR9609437A/en not_active IP Right Cessation
- 1996-07-02 DE DE69601469T patent/DE69601469T2/en not_active Expired - Lifetime
- 1996-07-02 WO PCT/FR1996/001023 patent/WO1997002206A1/en active IP Right Grant
- 1996-07-02 EP EP96924915A patent/EP0836581B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BR9609437A (en) | 1999-07-27 |
| EP0836581A1 (en) | 1998-04-22 |
| FR2736338A1 (en) | 1997-01-10 |
| FR2736338B1 (en) | 1997-08-29 |
| ES2128868T3 (en) | 1999-05-16 |
| DE69601469T2 (en) | 1999-08-19 |
| WO1997002206A1 (en) | 1997-01-23 |
| DE69601469D1 (en) | 1999-03-11 |
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