EP1981658A1 - Method of washing pipework - Google Patents

Method of washing pipework

Info

Publication number
EP1981658A1
EP1981658A1 EP07703348A EP07703348A EP1981658A1 EP 1981658 A1 EP1981658 A1 EP 1981658A1 EP 07703348 A EP07703348 A EP 07703348A EP 07703348 A EP07703348 A EP 07703348A EP 1981658 A1 EP1981658 A1 EP 1981658A1
Authority
EP
European Patent Office
Prior art keywords
air
volume
introduction
washing
type
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
EP07703348A
Other languages
German (de)
French (fr)
Other versions
EP1981658B1 (en
Inventor
Pierre Guillon
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.)
Pack Realisations SA
Original Assignee
Pack Realisations SA
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 Pack Realisations SA filed Critical Pack Realisations SA
Publication of EP1981658A1 publication Critical patent/EP1981658A1/en
Application granted granted Critical
Publication of EP1981658B1 publication Critical patent/EP1981658B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B67C3/001—Cleaning of filling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0323—Arrangements specially designed for simultaneous and parallel cleaning of a plurality of conduits

Definitions

  • the present invention relates to a method of washing a pipe, a pipe in which such a washing method is used and a filler comprising such a pipe.
  • a filler is a device that automatically fills bottles or cans with a liquid product.
  • Such a filler 100 is shown in FIG. unique. It comprises a first reservoir 102 in which is stored a first liquid product 104 and a second reservoir 150 in which a second liquid product 152 is stored.
  • the first liquid product 104 flows from the first reservoir 102 through a first connecting pipe 106 to a feed pipe 114 by passing through a first valve 116.
  • the second liquid product 152 flows from the second reservoir
  • the first valve 116 and the second valve 156 are arranged at the supply pipe 1 14 and are controlled in a controlled manner. only one is open to allow the passage of a single product liquid 104 or 152 or none is open to allow the washing of the piping of the filler 100 as explained below.
  • each filling pipe HOa, HOb, HOc, 1 10d ends with a filling spout 1 12a, 1 12b, 1 12c, 112d through which the liquid product 104 flows into the can.
  • Each filling spout 112a, 112b, 112c, 112d comprises an opening and closing device controlled by a control unit.
  • the first reservoir 102 When the first liquid product 104 is to be replaced by the second liquid product 152, the first reservoir 102 must be dissociated from the supply pipe 114 by closing the first valve 116, then the filler 100, and in particular the piping extending between the supply pipe 114, the distributor 108, the filling pipes HOa, HOb, HOc and 11 Od and the filler nozzles 112a, 112b, 112c and 112d, must be washed in order to remove all traces of the first liquid product. 104 before the second reservoir 152 is connected to the supply pipe 1 14 by opening the second valve 156.
  • the filling step consists in filling the pipework of the filler 100, that is to say the filler nozzles 112a, 112b, 112c and 112d, the filling lines 1 10a, 110b, 1c 10c and 1 10d, the distributor 108 and the feed pipe 114 with the washing product.
  • the filling up to filling level 120 thus leaves free an expansion volume 122 which does not contain washing liquid.
  • the volume of air introduced substantially corresponds to this expansion volume 122 and the top of the supply pipe 114 is provided with a vent 118 which allows the evacuation of air from the expansion volume 122.
  • the introduction constant air flow in the washing liquid causes a rise thereof in the pipe of the filler 100 and, in particular, in the supply pipe 1 14.
  • the washing liquid then fills the whole of the supply pipe 114 by evacuation of the air initially contained in the expansion volume 122 by the vent 118.
  • the introduced air rises by the effect of the law of archimedes then in the various pipes 110a, 1 10b, 110c , 11Od, 108 and 1 14 so as to evacuate through the vent 1 18.
  • the washing liquid located just above the volume of air falls just below the volume of air air which generates a back-and-forth movement favoring the stalling of the particles of the first product liquid 104 glued to the walls of the pipework.
  • the introduction of the volume of air is done in one go, the introduction rate and the volume of air must be determined so that the washing liquid reaches the vent 118 but without overflow. Indeed, a too violent introduction of a volume of air corresponding to the expansion volume 122 causes a rise of the washing liquid to the top of the feed pipe 114 but under the effect of its inertia, the liquid of washing rises higher and overflows from the feed pipe 114 through the vent 118.
  • An object of the present invention is to provide a method of washing a pipe which does not have the disadvantages of the state of the art by allowing a better washing of the pipe.
  • a method of washing a pipe comprising a high point and at least one low point, and filled with a liquid product, the washing process comprising:
  • the introducing step comprises at least two cycles, each cycle comprising in series, an introduction of a volume of air of a first type at a first rate and an introduction of a volume of air of a second type at a second flow rate lower than the first flow rate and in that the time interval between the introduction of the first air volume of the first type and the introduction of the last air volume of the first type is less than the time interval required for the first air volume of the first type to reach the high point.
  • the second flow is zero.
  • the starting of the cycle of one of the low points is done sequentially with respect to the other low points.
  • the start of each cycle is done simultaneously in each of the low points.
  • the first flow is such that the introduction of the air volume of the first type generates a bubble filling the section of the pipe.
  • the invention also proposes a pipework filled with a liquid product and comprising:
  • the introduction means being such that they comprise regulating means provided for carrying out at least two cycles, each cycle comprising in series, an introduction of a volume of air of a first type at a first rate and an introduction an air volume of a second type at a second flow rate lower than the first flow rate and in that the time interval between the introduction of the first air volume of the first type and the introduction of the last volume of The air of the first type is less than the time interval required for the first air volume of the first type to reach the high point.
  • the second flow is zero.
  • the regulation means comprise air introduction devices and a control unit controlling each air introduction device.
  • the air introduction devices consist of connection nozzles, each of them being adapted to leak tightly on one of the low points.
  • the air introduction devices consist of injectors, each of them being placed at one of the low points.
  • the invention also proposes a filler comprising a pipe according to one of the preceding variants.
  • each low point is a filling spout.
  • connection tip 128a, 128b, 128c, 128d is terminated by a connection tip 128a, 128b, 128c, 128d.
  • Each connection spout 128a, 128b, 128c, 128d is sealed in one of the filling spouts 112a, 112b, 1c and 12d so that, when the filling spouts 112a, 12b , 112c and 112d are open, the air pressurized by the pressurized air reservoir 126 penetrates through each of the filling spouts 112a,
  • 112d is provided with an injector by which air is injected under pressure.
  • the pipe of the filler 100 extends between a high point here taking the form of the vent 118 and at least one low point, each of them taking the form here of a filling spout 112a, 1 12b, 1 12c , 112d.
  • the washing method of the pipe 100 which is filled with the liquid product 104 comprises: a step of emptying the pipework of the liquid product 104;
  • the introduction step comprises at least two cycles, each cycle comprising in series, an introduction of a volume of air of a first type at a first rate and an introduction of an air volume of a second type at a second flow rate lower than the first flow rate and the time interval between the introduction of the first air volume of the first type and the introduction of the last air volume of the first type is less than the time interval required for the first air volume of the first type to reach the high point 1 18.
  • the succession of at least two cycles thus generates at least one volume of air of the first type and a volume of air of the second type and, again, a volume of air of the first type.
  • This succession of air volumes produced by introducing air at different flow rates generates variations in the speed of the washing liquid towards the high point 118 and these speed variations favor the detachment of the particles of the first liquid product 104.
  • Each volume of the first type of air thus generates a a bumper that echoes along the piping and detaches the particles from the first liquid product 104.
  • the second rate is very low or even zero.
  • the total volume of air takes the form of two volumes of air of the first type which follow each other at a distance from each other and which are separated by a volume of washing liquid containing little or no no air at all. This succession provides a plurality of back and forth movements, while ensuring that the top of the pipe is washed and this in a very short time.
  • the column of washing liquid is upwardly moving towards the high point 1 18 and at each passage of a volume of air of the first type, the washing liquid undergoes a descent movement. So there is a succession of movements back and forth.
  • the volume of air introduced at one time is substantially equal to the expansion volume 122 and if, to improve the washing, a second introduction is necessary, the A person skilled in the art will wait for the first volume of air to be evacuated by the high point 1 18 before carrying out the second injection, without which the washing liquid will overflow through the high point 1 18.
  • the duration of the washing process according to the invention The invention is therefore considerably less than that of the washing method of the state of the art.
  • the fact that the time interval between the introduction of the first volume of air of the first type and the introduction of the last volume of air of the first type is less than the time interval necessary for the first volume of air of the first type.
  • first type to reach the high point 1 18 ensures that the expansion volume 122 is fully washed before the first volume of air reaches the high point 1 18 and sort of piping.
  • the starting of the cycle of one of the low points 1 12a, 1 12b, 1 12c, 1 12d is done so sequentially with respect to the other low points 1 12a, 1 12b, 1 12c, 1 12d or that the start of each cycle is done simultaneously in each of the low points 112a, 1 12b, 1 12c, 112d.
  • each volume of air introduced remains in the form of a single volume and does not disperse in the form of air bubbles.
  • the first flow rate is such that each air volume of the first type consists of a single bubble or a set of bubbles filling the section of the pipe. High introductory rate also ensures a fast rise washing liquid and the washing is even better than the rise speed of the washing product is important.
  • the pipework thus comprises a high point 118 and at least one low point 112a, 112b, 112c, 112d, and is filled with the liquid product 104, the pipework also comprises:
  • the introduction means comprise regulating means provided for performing at least two cycles, each cycle comprising in series, an introduction of an air volume of the first type at a first rate and an introduction of an air volume of the second type at a second rate lower than the first rate and the time interval between the introduction of the first volume of air of the first type and the introduction of the last air volume of the first type is less than the time interval required for the first air volume of the first type to reach the high point 1 18.
  • the second flow is preferably low , see no one.
  • the emptying means here take the form of filling nozzles 112a, 112b, 112c, 112d and the filling means may take the form of a filling pipe connected to the supply pipe 114 via a third valve .
  • the regulating means comprise air introduction devices and a control unit controlling each air introduction device.
  • the user determines the volume and the flow rate of each volume of air of the first type or the second type to be introduced as well as the time interval between each of them. These different data are recorded in the control unit which can then control the air introduction devices according to these different data.
  • the air introduction devices consist of the connection nozzles 128a, 128b, 128c and 128d, each of them being adapted to leak tightly to one of the low points 112a, 112b, 112c, 112d.
  • each low point 112a, 112b, 112c, 112d is a filling spout for filling a can.
  • the pipework may consist of horizontal and / or vertical portions.
  • the present invention is not limited to the example and the embodiment described and shown, but it is capable of many variants accessible to those skilled in the art.
  • each volume of the first type is introduced at a first rate and each volume of the second type is introduced at a second rate, but it is possible that for each volume of the first type the rate is different or for each volume of the second type flow is different.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention concerns a method of washing pipework comprising a high point and at least one low point and filled with a liquid product, the washing method comprising: a step of draining the pipework of the liquid product; a step of filling the pipework with a washing product up to a filling level below the level of the high point; a step of introducing into the pipework a total volume of air through the or each low point the total volume of air introduced being substantially equal to the volume existing between the level of the high point and the filling level; and a step of draining the pipework of the washing product; the method being characterised in that the introduction step comprises at least two cycles, each cycle comprising in series an introduction of a volume of air of a first type at a first rate and an introduction of a volume of air of a second type at a second rate lower than the first rate.

Description

Procédé de lavage d'une tuyauterie Method of washing a pipe
La présente invention concerne un procédé de lavage d'une tuyauterie, une tuyauterie dans laquelle est utilisé un tel procédé de lavage ainsi qu'une remplisseuse comprenant une telle tuyauterie.The present invention relates to a method of washing a pipe, a pipe in which such a washing method is used and a filler comprising such a pipe.
Une remplisseuse est un dispositif qui permet de remplir automatiquement des bouteilles ou des bidons avec un produit liquide.A filler is a device that automatically fills bottles or cans with a liquid product.
Une telle remplisseuse 100 est représentée sur la Fig. unique. Elle comprend un premier réservoir 102 dans lequel est stocké un premier produit liquide 104 et un deuxième réservoir 150 dans lequel est stocké un deuxième produit liquide 152.Such a filler 100 is shown in FIG. unique. It comprises a first reservoir 102 in which is stored a first liquid product 104 and a second reservoir 150 in which a second liquid product 152 is stored.
Le premier produit liquide 104 s'écoule du premier réservoir 102 par un premier tuyau de connexion 106 jusqu'à un tuyau d'alimentation 114 en passant à travers une première vanne 116. Le deuxième produit liquide 152 s'écoule du deuxième réservoirThe first liquid product 104 flows from the first reservoir 102 through a first connecting pipe 106 to a feed pipe 114 by passing through a first valve 116. The second liquid product 152 flows from the second reservoir
150 par un deuxième tuyau de connexion 154 jusqu'au tuyau d'alimentation 114 en passant à travers une deuxième vanne 156. La première vanne 116 et la deuxième vanne 156 sont disposées au niveau du tuyau d'alimentation 1 14 et sont commandées de manière à ce qu'une seule soit ouverte pour permettre le passage d'un seul produit liquide 104 ou 152 ou qu'aucune ne soit ouverte pour permettre le lavage de la tuyauterie de la remplisseuse 100 comme cela est expliqué ci-après.150 through a second connecting pipe 154 to the supply pipe 114 by passing through a second valve 156. The first valve 116 and the second valve 156 are arranged at the supply pipe 1 14 and are controlled in a controlled manner. only one is open to allow the passage of a single product liquid 104 or 152 or none is open to allow the washing of the piping of the filler 100 as explained below.
A partir du tuyau d'alimentation 114, le produit liquide 104, 152 s'écoule jusqu'à un répartiteur 108. De ce répartiteur 108 s'étendent plusieurs canalisations de remplissage 110a, 1 10b, 110c et 11 Od qui se répartissent de manière à permettre le remplissage simultané de plusieurs bidons. Chaque canalisation de remplissage HOa, HOb, HOc, 1 1Od se termine par un bec de remplissage 1 12a, 1 12b, 1 12c, 112d par lequel s'écoule le produit liquide 104 dans le bidon. Chaque bec de remplissage 112a, 112b, 112c, 112d comprend un dispositif d'ouverture et de fermeture commandé par une unité de contrôle.From the supply pipe 114, the liquid product 104, 152 flows to a distributor 108. From this distributor 108 extend several filling lines 110a, 1 10b, 110c and 11 Od which are distributed in a manner to allow simultaneous filling of several cans. Each filling pipe HOa, HOb, HOc, 1 10d ends with a filling spout 1 12a, 1 12b, 1 12c, 112d through which the liquid product 104 flows into the can. Each filling spout 112a, 112b, 112c, 112d comprises an opening and closing device controlled by a control unit.
Lorsque le premier produit liquide 104 doit être remplacé par le deuxième produit liquide 152, le premier réservoir 102 doit être dissocié du tuyau d'alimentation 114 par fermeture de la première vanne 116, puis la remplisseuse 100, et en particulier la tuyauterie s'étendant entre le tuyau d'alimentation 114, le répartiteur 108, les canalisations de remplissage HOa, HOb, HOc et 11 Od et les becs de remplissage 112a, 112b, 112c et 112d, doit être lavée afin de faire disparaître toutes traces du premier produit liquide 104 avant que le deuxième réservoir 152 soit connecté au tuyau d'alimentation 1 14 par ouverture de la deuxième vanne 156.When the first liquid product 104 is to be replaced by the second liquid product 152, the first reservoir 102 must be dissociated from the supply pipe 114 by closing the first valve 116, then the filler 100, and in particular the piping extending between the supply pipe 114, the distributor 108, the filling pipes HOa, HOb, HOc and 11 Od and the filler nozzles 112a, 112b, 112c and 112d, must be washed in order to remove all traces of the first liquid product. 104 before the second reservoir 152 is connected to the supply pipe 1 14 by opening the second valve 156.
On connaît un procédé de lavage de la tuyauterie de la remplisseuse 100 qui comprend une étape de vidange du premier produit liquide 104 par les becs de remplissage 112a, 112b, 112c et 1 12d, une étape de remplissage de la tuyauterie de la remplisseuse 100 avec un liquide de lavage et une étape de vidange du liquide de lavage. L'étape de remplissage avec le liquide de lavage et l'étape de vidange du liquide de lavage peuvent être renouvelées plusieurs fois selon le degré de salissure de la tuyauterie de la remplisseuse 100. Ce procédé nécessite une grande quantité de liquide de lavage et selon le nombre de passage de ce liquide de lavage, le procédé de lavage peut être long.A method of washing the piping of the filler 100 is known which comprises a step of emptying the first liquid product 104 by the filler nozzles 112a, 112b, 112c and 112d, a step of filling the pipe of the filler 100 with a washing liquid and a step of draining the washing liquid. The step of filling with the washing liquid and the step of emptying the washing liquid can be repeated several times according to the degree of soiling of the filling of the filling machine 100. This process requires a large amount of washing liquid and according to the number of passage of this washing liquid, the washing process can be long.
On connaît un autre procédé de lavage qui comprend, après fermeture de la première vanne 116, une étape de vidange de la tuyauterie du premier produit liquide 104 par les becs de remplissage 112a, 112b, 112c et 112d, une étape de remplissage de la tuyauterie de la remplisseuse 100 avec un liquide de lavage jusqu'à un niveau de remplissage référencé 120, une étape d'introduction à débit constant dans la tuyauterie d'un volume d'air par les becs de remplissage 1 12a, 1 12b, 112c et 112d et une étape de vidange du liquide de lavage. L'étape de remplissage consiste à remplir la tuyauterie de la remplisseuse 100, c'est-à-dire les becs de remplissage 112a, 112b, 1 12c et 112d, les canalisations de remplissage 1 10a, 110b, 1 10c et 1 1Od, le répartiteur 108 et le tuyau d'alimentation 114 avec le produit de lavage. Le remplissage jusqu'au niveau de remplissage 120 laisse ainsi libre un volume d'expansion 122 qui ne contient pas de liquide de lavage. Le volume d'air introduit correspond sensiblement à ce volume d'expansion 122 et le sommet du tuyau d'alimentation 114 est muni d'un évent 118 qui permet l'évacuation de l'air du volume d'expansion 122. L'introduction de l'air à débit constant dans le liquide de lavage entraîne une remontée de celui-ci dans la tuyauterie de la remplisseuse 100 et, en particulier, dans le tuyau d'alimentation 1 14. Le liquide de lavage vient alors remplir la totalité du tuyau d'alimentation 114 par évacuation de l'air initialement contenu dans le volume d'expansion 122 par l'évent 118. L'air introduit remonte par effet de la loi d'archimède alors dans les différents tuyaux 110a, 1 10b, 110c, 11Od, 108 et 1 14 de manière à s'évacuer par l'évent 1 18. Lors de la remontée du volume d'air, le liquide de lavage situé juste au dessus du volume d'air descend juste au dessous du volume d'air ce qui génère un mouvement de va-et-vient favorisant le décrochage des particules du premier produit liquide 104 collées aux parois de la tuyauterie.Another washing method is known which comprises, after closure of the first valve 116, a step of emptying the piping of the first liquid product 104 by the filling spouts 112a, 112b, 112c and 112d, a step of filling the piping. of the filler 100 with a washing liquid up to a filling level referenced 120, a step of introducing a constant flow into the piping of a volume of air through the filling nozzles 1 12a, 1 12b, 112c and 112d and a step of emptying the washing liquid. The filling step consists in filling the pipework of the filler 100, that is to say the filler nozzles 112a, 112b, 112c and 112d, the filling lines 1 10a, 110b, 1c 10c and 1 10d, the distributor 108 and the feed pipe 114 with the washing product. The filling up to filling level 120 thus leaves free an expansion volume 122 which does not contain washing liquid. The volume of air introduced substantially corresponds to this expansion volume 122 and the top of the supply pipe 114 is provided with a vent 118 which allows the evacuation of air from the expansion volume 122. The introduction constant air flow in the washing liquid causes a rise thereof in the pipe of the filler 100 and, in particular, in the supply pipe 1 14. The washing liquid then fills the whole of the supply pipe 114 by evacuation of the air initially contained in the expansion volume 122 by the vent 118. The introduced air rises by the effect of the law of archimedes then in the various pipes 110a, 1 10b, 110c , 11Od, 108 and 1 14 so as to evacuate through the vent 1 18. When the rise in the volume of air, the washing liquid located just above the volume of air falls just below the volume of air air which generates a back-and-forth movement favoring the stalling of the particles of the first product liquid 104 glued to the walls of the pipework.
L'introduction du volume d'air se fait en une seule fois, le débit d'introduction et le volume d'air doivent être déterminés de manière à ce que le liquide de lavage parvienne jusqu'à l'évent 118 mais sans déborder. En effet, une introduction trop violente d'un volume d'air correspondant au volume d'expansion 122 entraîne une montée du liquide de lavage jusqu'au sommet du tuyau d'alimentation 114 mais sous l'effet de son inertie, le liquide de lavage monte plus haut et déborde du tuyau d'alimentation 114 par l'évent 118.The introduction of the volume of air is done in one go, the introduction rate and the volume of air must be determined so that the washing liquid reaches the vent 118 but without overflow. Indeed, a too violent introduction of a volume of air corresponding to the expansion volume 122 causes a rise of the washing liquid to the top of the feed pipe 114 but under the effect of its inertia, the liquid of washing rises higher and overflows from the feed pipe 114 through the vent 118.
Même si ce procédé de lavage donne de bons résultats, il conserve certains inconvénients. Par exemple, lors de ce procédé de lavage, l'introduction de l'air génère un seul mouvement de va-et-vient, ce qui peut ne pas être suffisant pour détacher certaines particules du premier produit liquide 104 qui restent alors fixées sur les parois de la tuyauterie. En effet, le lavage est d'autant plus efficace qu'il y a plusieurs mouvements de va-et-vient et que la vitesse d'introduction du volume d'air est grande. Du fait que l'introduction du volume d'air se fait à une vitesse faible, l'air introduit se déplace sous forme de bulles et le procédé de lavage s'apparente plus à un procédé de brassage du liquide de lavage qu'à un véritable procédé de lavage. Un objet de la présente invention est de proposer un procédé de lavage d'une tuyauterie qui ne présente pas les inconvénients de l'état de la technique en permettant un meilleur lavage de la tuyauterie.Although this washing process gives good results, it retains certain disadvantages. For example, during this washing process, the introduction of air generates a single back-and-forth movement, which may not be sufficient to detach certain particles of the first liquid product 104 which then remain fixed on the walls of the piping. Indeed, the washing is more effective than there are several movements back and forth and the rate of introduction of the air volume is large. Because the introduction of the volume of air is at a low speed, the introduced air moves in the form of bubbles and the washing process is more like a brewing process of the washing liquid than a true washing process. An object of the present invention is to provide a method of washing a pipe which does not have the disadvantages of the state of the art by allowing a better washing of the pipe.
A cet effet, est proposé un procédé de lavage d'une tuyauterie comprenant un point haut et au moins un point bas, et rempli d'un produit liquide, le procédé de lavage comprenant:For this purpose, there is provided a method of washing a pipe comprising a high point and at least one low point, and filled with a liquid product, the washing process comprising:
- une étape de vidange de la tuyauterie du produit liquide ;a step of emptying the piping of the liquid product;
- une étape de remplissage de la tuyauterie par un produit de lavage jusqu'à un niveau de remplissage inférieur au niveau du point haut ; - une étape d'introduction dans la tuyauterie d'un volume total d'air par le ou chaque point bas, le volume total d'air introduit étant sensiblement égal au volume existant entre le niveau du point haut et le niveau de remplissage ; eta step of filling the piping with a detergent up to a filling level lower than the level of the high point; a step of introducing into the piping a total volume of air through the or each low point, the total volume of air introduced being substantially equal to the volume existing between the level of the high point and the level of filling; and
- une étape de vidange de la tuyauterie du produit de lavage ; le procédé étant tel que l'étape d'introduction comprend au moins deux cycles, chaque cycle comprenant en série, une introduction d'un volume d'air d'un premier type à un premier débit et une introduction d'un volume d'air d'un deuxième type à un deuxième débit inférieur au premier débit et en ce que l'intervalle de temps entre l'introduction du premier volume d'air du premier type et l'introduction du dernier volume d'air du premier type est inférieur à l'intervalle de temps nécessaire au premier volume d'air du premier type pour atteindre le point haut. Avantageusement, le deuxième débit est nul.a step of emptying the piping of the washing product; the method being such that the introducing step comprises at least two cycles, each cycle comprising in series, an introduction of a volume of air of a first type at a first rate and an introduction of a volume of air of a second type at a second flow rate lower than the first flow rate and in that the time interval between the introduction of the first air volume of the first type and the introduction of the last air volume of the first type is less than the time interval required for the first air volume of the first type to reach the high point. Advantageously, the second flow is zero.
Selon un mode de réalisation particulier, lorsqu'il y a plusieurs points bas, le démarrage du cycle de l'un des points bas se fait de manière séquentielle par rapport aux autres points bas. Selon un autre mode de réalisation particulier, lorsqu'il y a plusieurs points bas, le démarrage de chaque cycle se fait de manière simultanée dans chacun des points bas.According to a particular embodiment, when there are several low points, the starting of the cycle of one of the low points is done sequentially with respect to the other low points. According to another particular embodiment, when there are several low points, the start of each cycle is done simultaneously in each of the low points.
Avantageusement, le premier débit est tel que l'introduction du volume d'air du premier type génère une bulle remplissant la section de la tuyauterie. L'invention propose également une tuyauterie remplie d'un produit liquide et comprenant:Advantageously, the first flow is such that the introduction of the air volume of the first type generates a bubble filling the section of the pipe. The invention also proposes a pipework filled with a liquid product and comprising:
- un point haut et au moins un point bas ;- a high point and at least a low point;
- des moyens de vidange du produit liquide ; - des moyens de remplissage par un produit de lavage jusqu'à un niveau de remplissage inférieur au niveau du point haut ;means for emptying the liquid product; - Filling means with a detergent to a lower filling level at the high point;
- des moyens d'introduction d'un volume total d'air par le ou chaque point bas, le volume total d'air introduit étant sensiblement égal au volume existant entre le niveau du point haut et le niveau de remplissage ; etmeans for introducing a total volume of air through the or each low point, the total volume of air introduced being substantially equal to the volume existing between the level of the high point and the level of filling; and
- des moyens de vidange du produit de lavage ; les moyens d'introduction étant tels qu'ils comprennent des moyens de régulation prévus pour réaliser au moins deux cycles, chaque cycle comprenant en série, une introduction d'un volume d'air d'un premier type à un premier débit et une introduction d'un volume d'air d'un deuxième type à un deuxième débit inférieur au premier débit et en ce que l'intervalle de temps entre l'introduction du premier volume d'air du premier type et l'introduction du dernier volume d'air du premier type est inférieur à l'intervalle de temps nécessaire au premier volume d'air du premier type pour atteindre le point haut. Avantageusement, le deuxième débit est nul.means for emptying the washing product; the introduction means being such that they comprise regulating means provided for carrying out at least two cycles, each cycle comprising in series, an introduction of a volume of air of a first type at a first rate and an introduction an air volume of a second type at a second flow rate lower than the first flow rate and in that the time interval between the introduction of the first air volume of the first type and the introduction of the last volume of The air of the first type is less than the time interval required for the first air volume of the first type to reach the high point. Advantageously, the second flow is zero.
Avantageusement, les moyens de régulation comprennent des dispositifs d'introduction d'air et une unité de contrôle commandant chaque dispositif d'introduction d'air.Advantageously, the regulation means comprise air introduction devices and a control unit controlling each air introduction device.
Selon un mode de réalisation particulier, les dispositifs d'introduction d'air sont constitués de becs de connexion, chacun d'eux étant adapté pour s'emmancher de manière étanche sur l'un des points bas.According to a particular embodiment, the air introduction devices consist of connection nozzles, each of them being adapted to leak tightly on one of the low points.
Selon un autre mode de réalisation particulier, les dispositifs d'introduction d'air sont constitués d'injecteurs, chacun d'eux étant placé au niveau de l'un des points bas.According to another particular embodiment, the air introduction devices consist of injectors, each of them being placed at one of the low points.
L'invention propose également une remplisseuse comprenant une tuyauterie selon une des variantes précédentes.The invention also proposes a filler comprising a pipe according to one of the preceding variants.
Avantageusement, chaque point bas est un bec de remplissage.Advantageously, each low point is a filling spout.
Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, ladite description étant faite en relation avec la Fig. unique qui représente une remplisseuse.The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made with reference to FIG. unique that represents a filler.
Les éléments identiques à la remplisseuse 100 de l'état de la technique portent les mêmes références.The elements identical to the filler 100 of the state of the art have the same references.
La remplisseuse 100 comprend un réservoir d'air sous pression 126 qui alimente une canalisation principale 122 à partir de laquelle sont alimentées des canalisations secondaires 124a, 124b, 124c et 124d. Chaque canalisation secondaire 124a, 124b,The filler 100 comprises a pressurized air reservoir 126 which feeds a main pipe 122 from which the pipes are fed. secondary 124a, 124b, 124c and 124d. Each secondary pipe 124a, 124b,
124c, 124d est terminée par un bec de connexion 128a, 128b, 128c, 128d. Chaque bec de connexion 128a, 128b, 128c, 128d vient s'emmancher de manière étanche sur l'un des becs de remplissage 112a, 112b, 1 12c et 1 12d de manière à ce que, lorsque les becs de remplissage 112a, 1 12b, 112c et 112d sont ouverts, l'air mis sous pression par le réservoir d'air sous pression 126 pénètre par chacun des becs de remplissage 112a,124c, 124d is terminated by a connection tip 128a, 128b, 128c, 128d. Each connection spout 128a, 128b, 128c, 128d is sealed in one of the filling spouts 112a, 112b, 1c and 12d so that, when the filling spouts 112a, 12b , 112c and 112d are open, the air pressurized by the pressurized air reservoir 126 penetrates through each of the filling spouts 112a,
112b, 1 12c et 1 12d.112b, 12c and 12d.
Dans un autre mode de réalisation, chaque bec de remplissage 112a, 112b, 112c,In another embodiment, each filling spout 112a, 112b, 112c,
112d est muni d'un injecteur par lequel est injecté l'air sous pression. La tuyauterie de la remplisseuse 100 s'étend entre un point haut prenant ici la forme de l'évent 118 et au moins un point bas, chacun d'eux prenant ici la forme d'un bec de remplissage 112a, 1 12b, 1 12c, 112d.112d is provided with an injector by which air is injected under pressure. The pipe of the filler 100 extends between a high point here taking the form of the vent 118 and at least one low point, each of them taking the form here of a filling spout 112a, 1 12b, 1 12c , 112d.
Selon l'invention, le procédé de lavage de la tuyauterie 100 qui est remplie du produit liquide 104 comprend : - une étape de vidange de la tuyauterie du produit liquide 104 ;According to the invention, the washing method of the pipe 100 which is filled with the liquid product 104 comprises: a step of emptying the pipework of the liquid product 104;
- une étape de remplissage de la tuyauterie par un produit de lavage jusqu'à un niveau de remplissage 120 inférieur au niveau du point haut 118 ;a step of filling the piping with a washing product up to a filling level 120 below the level of the high point 118;
- une étape d'introduction d'un volume total d'air par le ou chaque point bas 1 12a, 112b, 112c, 112d, le volume total d'air ainsi introduit étant sensiblement égal au volume existant entre le niveau du point haut 118 et le niveau de remplissage 120 ; et- A step of introducing a total volume of air by the or each low point 1 12a, 112b, 112c, 112d, the total volume of air thus introduced being substantially equal to the volume between the level of the high point 118 and the fill level 120; and
- une étape de vidange de la tuyauterie du produit de lavage.a step of emptying the piping of the washing product.
Dans le mode de réalisation de l'invention, l'étape d'introduction comprend au moins deux cycles, chaque cycle comprenant en série, une introduction d'un volume d'air d'un premier type à un premier débit et une introduction d'un volume d'air d'un deuxième type à un deuxième débit inférieur au premier débit et l'intervalle de temps entre l'introduction du premier volume d'air du premier type et l'introduction du dernier volume d'air du premier type est inférieur à l'intervalle de temps nécessaire au premier volume d'air du premier type pour atteindre le point haut 1 18.In the embodiment of the invention, the introduction step comprises at least two cycles, each cycle comprising in series, an introduction of a volume of air of a first type at a first rate and an introduction of an air volume of a second type at a second flow rate lower than the first flow rate and the time interval between the introduction of the first air volume of the first type and the introduction of the last air volume of the first type is less than the time interval required for the first air volume of the first type to reach the high point 1 18.
La succession d'au moins deux cycles génère ainsi au moins un volume d'air du premier type et un volume d'air du deuxième type puis, à nouveau, un volume d'air du premier type. Cette succession de volumes d'air réalisés par introduction d'air à des débits différents génère des variations de la vitesse du liquide de lavage vers le point haut 118 et ces variations de vitesse favorisent le détachement des particules du premier produit liquide 104. Chaque volume d'air du premier type génère ainsi un coup de butoir qui se répercute le long de la tuyauterie et qui vient détacher les particules du premier produit liquide 104.The succession of at least two cycles thus generates at least one volume of air of the first type and a volume of air of the second type and, again, a volume of air of the first type. This succession of air volumes produced by introducing air at different flow rates generates variations in the speed of the washing liquid towards the high point 118 and these speed variations favor the detachment of the particles of the first liquid product 104. Each volume of the first type of air thus generates a a bumper that echoes along the piping and detaches the particles from the first liquid product 104.
Dans un mode de réalisation préféré, le deuxième débit est très faible voir nul. Dans ce cas, le volume total d'air prend la forme de deux volumes d'air du premier type qui se suivent à une certaine distance l'un de l'autre et qui sont séparés par un volume de liquide de lavage contenant peu ou pas du tout d'air. Cette succession permet d'obtenir une pluralité de mouvements de va-et-vient, tout en garantissant que le haut de la tuyauterie est lavé et ceci dans un temps très court.In a preferred embodiment, the second rate is very low or even zero. In this case, the total volume of air takes the form of two volumes of air of the first type which follow each other at a distance from each other and which are separated by a volume of washing liquid containing little or no no air at all. This succession provides a plurality of back and forth movements, while ensuring that the top of the pipe is washed and this in a very short time.
En effet, pour chaque volume d'air du premier type introduit, la colonne de liquide de lavage subit un mouvement ascendant vers le point haut 1 18 et à chaque passage d'un volume d'air du premier type, le liquide de lavage subit un mouvement de descente. Il y a donc bien une succession de mouvements de va-et-vient.In fact, for each volume of air of the first type introduced, the column of washing liquid is upwardly moving towards the high point 1 18 and at each passage of a volume of air of the first type, the washing liquid undergoes a descent movement. So there is a succession of movements back and forth.
Dans le cas du procédé de lavage de l'état de la technique, le volume d'air introduit en une seule fois est sensiblement égal au volume d'expansion 122 et si, pour améliorer le lavage, une deuxième introduction est nécessaire, l'homme du métier attendra que le premier volume d'air soit évacué par le point haut 1 18 avant de réaliser la deuxième injection, sans quoi, le liquide de lavage va déborder par le point haut 1 18. La durée du procédé de lavage selon l'invention est donc largement inférieure à celle du procédé de lavage de l'état de la technique. Le fait que l'intervalle de temps entre l'introduction du premier volume d'air du premier type et l'introduction du dernier volume d'air du premier type est inférieur à l'intervalle de temps nécessaire au premier volume d'air du premier type pour atteindre le point haut 1 18 garantit que le volume d'expansion 122 est entièrement lavé avant que le premier volume d'air atteigne le point haut 1 18 et sorte de la tuyauterie. Lorsqu'il y a plusieurs points bas 1 12a, 1 12b, 1 12c et 1 12d, il est possible que le démarrage du cycle de l'un des points bas 1 12a, 1 12b, 1 12c, 1 12d se fasse de manière séquentielle par rapport aux autres points bas 1 12a, 1 12b, 1 12c, 1 12d ou que le démarrage de chaque cycle se fasse de manière simultanée dans chacun des points bas 112a, 1 12b, 1 12c, 112d. Pour garantir un bon lavage de la tuyauterie, il est préférable que chaque volume d'air introduit reste sous la forme d'un seul volume et ne se disperse pas sous forme de bulles d'air. De préférence, le premier débit est tel que chaque volume d'air du premier type est constitué d'une seule bulle ou d'un ensemble de bulles remplissant la section de la tuyauterie. Un débit d'introduction élevé garantit également une montée rapide du liquide de lavage et le lavage est d'autant meilleur que la vitesse de montée du produit de lavage est importante.In the case of the washing method of the state of the art, the volume of air introduced at one time is substantially equal to the expansion volume 122 and if, to improve the washing, a second introduction is necessary, the A person skilled in the art will wait for the first volume of air to be evacuated by the high point 1 18 before carrying out the second injection, without which the washing liquid will overflow through the high point 1 18. The duration of the washing process according to the invention The invention is therefore considerably less than that of the washing method of the state of the art. The fact that the time interval between the introduction of the first volume of air of the first type and the introduction of the last volume of air of the first type is less than the time interval necessary for the first volume of air of the first type. first type to reach the high point 1 18 ensures that the expansion volume 122 is fully washed before the first volume of air reaches the high point 1 18 and sort of piping. When there are several low points 1 12a, 1 12b, 1 12c and 1 12d, it is possible that the starting of the cycle of one of the low points 1 12a, 1 12b, 1 12c, 1 12d is done so sequentially with respect to the other low points 1 12a, 1 12b, 1 12c, 1 12d or that the start of each cycle is done simultaneously in each of the low points 112a, 1 12b, 1 12c, 112d. To ensure proper washing of the piping, it is preferable that each volume of air introduced remains in the form of a single volume and does not disperse in the form of air bubbles. Preferably, the first flow rate is such that each air volume of the first type consists of a single bubble or a set of bubbles filling the section of the pipe. High introductory rate also ensures a fast rise washing liquid and the washing is even better than the rise speed of the washing product is important.
La tuyauterie comprend ainsi un point haut 118 et au moins un point bas 112a, 1 12b, 112c, 112d, et est remplie du produit liquide 104, la tuyauterie comprend également :The pipework thus comprises a high point 118 and at least one low point 112a, 112b, 112c, 112d, and is filled with the liquid product 104, the pipework also comprises:
- des moyens de vidange du produit liquide 104 ;means for emptying the liquid product 104;
- des moyens de remplissage par un produit de lavage jusqu'au niveau de remplissage 120 inférieur au niveau du point haut 118 ;- Means for filling with a detergent to filling level 120 below the level of the high point 118;
- des moyens d'introduction du volume total d'air par le ou chaque point bas 112a, 112b, 112c, 112d, le volume total d'air introduit étant sensiblement égal au volume existant entre le niveau du point haut 118 et le niveau de remplissage 120 ; etmeans for introducing the total volume of air through the or each low point 112a, 112b, 112c, 112d, the total volume of air introduced being substantially equal to the volume existing between the level of the high point 118 and the level of filling 120; and
- des moyens de vidange du produit de lavage.means for emptying the washing product.
Pour permettre la mise en œuvre du procédé de lavage décrit ci-dessus, les moyens d'introduction comprennent des moyens de régulation prévus pour réaliser au moins deux cycles, chaque cycle comprenant en série, une introduction d'un volume d'air du premier type à un premier débit et une introduction d'un volume d'air du deuxième type à un deuxième débit inférieur au premier débit et l'intervalle de temps entre l'introduction du premier volume d'air du premier type et l'introduction du dernier volume d'air du premier type est inférieur à l'intervalle de temps nécessaire au premier volume d'air du premier type pour atteindre le point haut 1 18. Comme cela a été expliqué ci-dessus, le deuxième débit est de préférence faible, voir nul.To allow the implementation of the washing method described above, the introduction means comprise regulating means provided for performing at least two cycles, each cycle comprising in series, an introduction of an air volume of the first type at a first rate and an introduction of an air volume of the second type at a second rate lower than the first rate and the time interval between the introduction of the first volume of air of the first type and the introduction of the last air volume of the first type is less than the time interval required for the first air volume of the first type to reach the high point 1 18. As explained above, the second flow is preferably low , see no one.
Les moyens de vidange prennent ici la forme des becs de remplissage 112a, 112b, 112c, 112d et les moyens de remplissage peuvent prendre la forme d'une canalisation de remplissage connectée au tuyau d'alimentation 114 par l'intermédiaire d'une troisième vanne.The emptying means here take the form of filling nozzles 112a, 112b, 112c, 112d and the filling means may take the form of a filling pipe connected to the supply pipe 114 via a third valve .
Les moyens de régulation comprennent des dispositifs d'introduction d'air et une unité de contrôle commandant chaque dispositif d'introduction d'air. En fonction des caractéristiques de la tuyauterie de la remplisseuse, l'utilisateur détermine le volume et le débit de chaque volume d'air du premier type ou du deuxième type à introduire ainsi que l'intervalle de temps entre chacun d'eux. Ces différentes données sont enregistrées dans l'unité de contrôle qui peut alors commander les dispositifs d'introduction d'air en fonction de ces différentes données.The regulating means comprise air introduction devices and a control unit controlling each air introduction device. Depending on the characteristics of the piping of the filler, the user determines the volume and the flow rate of each volume of air of the first type or the second type to be introduced as well as the time interval between each of them. These different data are recorded in the control unit which can then control the air introduction devices according to these different data.
Dans le mode de réalisation de l'invention représenté sur la Fig. unique, les dispositifs d'introduction d'air sont constitués des becs de connexion 128a, 128b, 128c et 128d, chacun d'eux étant adapté pour s'emmancher de manière étanche sur l'un des points bas 112a, 112b, 1 12c, 112d.In the embodiment of the invention shown in FIG. single, the air introduction devices consist of the connection nozzles 128a, 128b, 128c and 128d, each of them being adapted to leak tightly to one of the low points 112a, 112b, 112c, 112d.
Dans un autre mode de réalisation, les dispositifs d'introduction d'air peuvent être constitués d'injecteurs, chacun d'eux étant placé au niveau de l'un des points bas 1 12a, 112b, 1 12c, 1 12d.In another embodiment, the air introduction devices may consist of injectors, each of them being placed at one of the low points January 12a, 112b, January 12c, January 12d.
Dans le cas de la remplisseuse 100, chaque point bas 112a, 1 12b, 112c, 1 12d est un bec de remplissage permettant de remplir un bidon.In the case of the filler 100, each low point 112a, 112b, 112c, 112d is a filling spout for filling a can.
Du fait de la cohésion de chaque volume d'air introduit, la tuyauterie peut être constituée de portions horizontales et/ou verticales. Bien entendu, la présente invention n'est pas limitée à l'exemple et au mode de réalisation décrits et représentés, mais elle est susceptible de nombreuses variantes accessibles à l'homme de l'art.Due to the cohesion of each volume of air introduced, the pipework may consist of horizontal and / or vertical portions. Of course, the present invention is not limited to the example and the embodiment described and shown, but it is capable of many variants accessible to those skilled in the art.
Dans le mode de réalisation décrit, chaque volume du premier type est introduit à un premier débit et chaque volume du deuxième type est introduit à un deuxième débit, mais il est possible que pour chaque volume du premier type le débit soit différent ou que pour chaque volume du deuxième type débit soit différent. In the embodiment described, each volume of the first type is introduced at a first rate and each volume of the second type is introduced at a second rate, but it is possible that for each volume of the first type the rate is different or for each volume of the second type flow is different.

Claims

REVENDICATIONS
1) Procédé de lavage d'une tuyauterie comprenant un point haut (1 18) et au moins un point bas (112a, 1 12b, 112c, 112d), et remplie d'un produit liquide (104), le procédé de lavage comprenant :1) A method of washing a pipe comprising a high point (1 18) and at least one low point (112a, 1 12b, 112c, 112d), and filled with a liquid product (104), the washing process comprising :
- une étape de vidange de la tuyauterie du produit liquide (104) ;a step of emptying the piping of the liquid product (104);
- une étape de remplissage de la tuyauterie par un produit de lavage jusqu'à un niveau de remplissage (120) inférieur au niveau du point haut (1 18) ;- A step of filling the pipe with a detergent to a filling level (120) below the level of the high point (1 18);
- une étape d'introduction dans la tuyauterie d'un volume total d'air par le ou chaque point bas (112a, 112b, 112c, 112d), le volume total d'air introduit étant sensiblement égal au volume existant entre le niveau du point haut (1 18) et le niveau de remplissage (120) ; eta step of introducing into the pipework a total volume of air through the or each low point (112a, 112b, 112c, 112d), the total volume of air introduced being substantially equal to the volume existing between the level of the high point (1 18) and the fill level (120); and
- une étape de vidange de la tuyauterie du produit de lavage ; le procédé étant caractérisé en ce que l'étape d'introduction comprend au moins deux cycles, chaque cycle comprenant en série, une introduction d'un volume d'air d'un premier type à un premier débit et une introduction d'un volume d'air d'un deuxième type à un deuxième débit inférieur au premier débit et en ce que l'intervalle de temps entre l'introduction du premier volume d'air du premier type et l'introduction du dernier volume d'air du premier type est inférieur à l'intervalle de temps nécessaire au premier volume d'air du premier type pour atteindre le point haut (1 18).a step of emptying the piping of the washing product; the method being characterized in that the introducing step comprises at least two cycles, each cycle comprising in series, an introduction of a volume of air of a first type at a first rate and an introduction of a volume. of a second type at a second rate lower than the first rate and that the time interval between the introduction of the first volume of air of the first type and the introduction of the last volume of air of the first type is less than the time interval required for the first air volume of the first type to reach the high point (1 18).
2) Procédé de lavage d'une tuyauterie selon la revendication 1, caractérisé en ce que le deuxième débit est nul.2) A method of washing a pipe according to claim 1, characterized in that the second flow is zero.
3) Procédé de lavage d'une tuyauterie selon une des revendications 1 ou 2, caractérisé en ce que, lorsqu'il y a plusieurs points bas (112a, 112b, 1 12c, 112d), le démarrage du cycle de l'un des points bas (112a, 112b, 112c, 112d) se fait de manière séquentielle par rapport aux autres points bas (1 12a, 112b, 1 12c, 112d).3) Process for washing a pipe according to one of claims 1 or 2, characterized in that, when there are several low points (112a, 112b, 112c, 112d), the start of the cycle of one of the low points (112a, 112b, 112c, 112d) is sequentially relative to the other low points (1 12a, 112b, 1 12c, 112d).
4) Procédé de lavage d'une tuyauterie selon une des revendications 1 ou 2, caractérisé en ce que, lorsqu'il y a plusieurs points bas (112a, 112b, 112c, 112d), le démarrage de chaque cycle se fait de manière simultanée dans chacun des points bas (1 12a, 112b, 112c, 112d). 5) Procédé de lavage d'une tuyauterie selon une des revendications précédentes, caractérisé en ce que le premier débit est tel que l'introduction du volume d'air du premier type génère une bulle remplissant la section de la tuyauterie.4) Process for washing a pipe according to one of claims 1 or 2, characterized in that, when there are several low points (112a, 112b, 112c, 112d), the start of each cycle is done simultaneously in each of the low points (1 12a, 112b, 112c, 112d). 5) Process for washing a pipe according to one of the preceding claims, characterized in that the first flow is such that the introduction of the air volume of the first type generates a bubble filling the section of the pipe.
6) Tuyauterie remplie d'un produit liquide (104) et comprenant : - un point haut ( 118) et au moins un point bas ( 112a, 112b, 112c, 1 12d) ;6) Piping filled with a liquid product (104) and comprising: - a high point (118) and at least one low point (112a, 112b, 112c, 112d);
- des moyens de vidange du produit liquide (104) ;means for emptying the liquid product (104);
- des moyens de remplissage par un produit de lavage jusqu'à un niveau de remplissage (120) inférieur au niveau du point haut (118) ;- Filling means with a detergent to a filling level (120) below the level of the high point (118);
- des moyens d'introduction d'un volume total d'air par le ou chaque point bas (112a, 112b, 112c, 112d), le volume total d'air introduit étant sensiblement égal au volume existant entre le niveau du point haut (118) et le niveau de remplissage (120) ; etmeans for introducing a total volume of air through the or each low point (112a, 112b, 112c, 112d), the total volume of air introduced being substantially equal to the volume existing between the level of the high point ( 118) and the filling level (120); and
- des moyens de vidange du produit de lavage ; les moyens d'introduction étant tels qu'ils comprennent des moyens de régulation prévus pour réaliser au moins deux cycles, chaque cycle comprenant en série, une introduction d'un volume d'air d'un premier type à un premier débit et une introduction d'un volume d'air d'un deuxième type à un deuxième débit inférieur au premier débit et en ce que l'intervalle de temps entre l'introduction du premier volume d'air du premier type et l'introduction du dernier volume d'air du premier type est inférieur à l'intervalle de temps nécessaire au premier volume d'air du premier type pour atteindre le point haut (118).means for emptying the washing product; the introduction means being such that they comprise regulating means provided for carrying out at least two cycles, each cycle comprising in series, an introduction of a volume of air of a first type at a first rate and an introduction an air volume of a second type at a second flow rate lower than the first flow rate and in that the time interval between the introduction of the first air volume of the first type and the introduction of the last volume of air of the first type is less than the time interval required for the first air volume of the first type to reach the high point (118).
7) Tuyauterie selon la revendication 6, caractérisée en ce que le deuxième débit est nul.7) Piping according to claim 6, characterized in that the second flow is zero.
8) Tuyauterie selon une des revendications 6 ou 7, caractérisée en ce que les moyens de régulation comprennent des dispositifs d'introduction d'air et une unité de contrôle commandant chaque dispositif d'introduction d'air.8) Piping according to one of claims 6 or 7, characterized in that the regulating means comprise air introduction devices and a control unit controlling each air introduction device.
9) Tuyauterie selon la revendication 8, caractérisée en ce que les dispositifs d'introduction d'air sont constitués de becs de connexion (128a, 128b, 128c, 128d), chacun d'eux étant adapté pour s'emmancher de manière étanche sur l'un des points bas (1 12a, 112b, 112c, 1 12d). 10) Tuyauterie selon la revendication 8, caractérisée en ce que les dispositifs d'introduction d'air sont constitués d'injecteurs, chacun d'eux étant placé au niveau de l'un des points bas (112a, 112b, 1 12c, 1 12d).9) Piping according to claim 8, characterized in that the air introduction devices consist of connection nozzles (128a, 128b, 128c, 128d), each of them being adapted to leak tightly on one of the low points (1 12a, 112b, 112c, 1 12d). 10) Piping according to claim 8, characterized in that the air introduction devices consist of injectors, each of them being placed at one of the low points (112a, 112b, 1 12c, 1 12d).
ll) Remplisseuse (100) comprenant une tuyauterie selon une des revendications 6 à 10.ll) Filling machine (100) comprising a pipe according to one of claims 6 to 10.
12) Remplisseuse (100) selon la revendication 1 1, caractérisée en ce que chaque point bas (1 12a, 112b, 1 12c, 112d) est un bec de remplissage. 12) Filler (100) according to claim 1 1, characterized in that each low point (1 12a, 112b, 1 12c, 112d) is a filling spout.
EP07703348A 2006-02-10 2007-02-08 Method of washing pipework Not-in-force EP1981658B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0601212A FR2897284B1 (en) 2006-02-10 2006-02-10 METHOD OF WASHING A PIPING
PCT/EP2007/001071 WO2007090641A1 (en) 2006-02-10 2007-02-08 Method of washing pipework

Publications (2)

Publication Number Publication Date
EP1981658A1 true EP1981658A1 (en) 2008-10-22
EP1981658B1 EP1981658B1 (en) 2011-01-19

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EP07703348A Not-in-force EP1981658B1 (en) 2006-02-10 2007-02-08 Method of washing pipework

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US (1) US8080112B2 (en)
EP (1) EP1981658B1 (en)
AT (1) ATE495829T1 (en)
DE (1) DE602007012052D1 (en)
FR (1) FR2897284B1 (en)
WO (1) WO2007090641A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2590980C (en) * 2007-06-06 2013-06-25 Orlande Sivacoe Pig pumping unit
DE102009039180A1 (en) * 2009-08-28 2011-03-03 Krones Ag Apparatus and method for providing a sterile liquid to a bottling plant
US9631511B2 (en) 2012-06-27 2017-04-25 Ecoservices, Llc Engine wash apparatus and method
US9821352B2 (en) 2012-06-27 2017-11-21 Ecoservices, Llc Engine wash apparatus and method
US10226796B2 (en) 2012-11-16 2019-03-12 Dai Nippon Printing Co., Ltd. Method for cleaning drink filling system
CA2940924A1 (en) 2016-09-01 2018-03-01 Orlande Sivacoe Pig pumpimg unit
CN107311091A (en) * 2017-06-21 2017-11-03 苏州首达机械有限公司 Linear filling machine cleaning device

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Publication number Priority date Publication date Assignee Title
US3513024A (en) * 1968-01-19 1970-05-19 Diversey Corp Method for cleaning automatic liquid filling machine valves
NL174712C (en) * 1971-06-10 1984-08-01 Stork Amsterdam METHOD FOR CLEANING A FILLING VALVE OF A BOTTLE FILLING INSTALLATION.
US4024896A (en) * 1975-05-13 1977-05-24 Shibuya Kogyo Company, Ltd. Washing device for rotary filling machine

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Title
See references of WO2007090641A1 *

Also Published As

Publication number Publication date
WO2007090641A1 (en) 2007-08-16
US20100051061A1 (en) 2010-03-04
EP1981658B1 (en) 2011-01-19
DE602007012052D1 (en) 2011-03-03
FR2897284A1 (en) 2007-08-17
US8080112B2 (en) 2011-12-20
FR2897284B1 (en) 2009-07-03
ATE495829T1 (en) 2011-02-15

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