EP2386760B1 - Protection device for a dispensing or transfer pump - Google Patents

Protection device for a dispensing or transfer pump Download PDF

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Publication number
EP2386760B1
EP2386760B1 EP20100290258 EP10290258A EP2386760B1 EP 2386760 B1 EP2386760 B1 EP 2386760B1 EP 20100290258 EP20100290258 EP 20100290258 EP 10290258 A EP10290258 A EP 10290258A EP 2386760 B1 EP2386760 B1 EP 2386760B1
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EP
European Patent Office
Prior art keywords
cabinet
hydraulic circuit
wall
pump
duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20100290258
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German (de)
French (fr)
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EP2386760A1 (en
Inventor
Denis Megemont
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Individual
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Individual
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Publication date
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Priority to EP20100290258 priority Critical patent/EP2386760B1/en
Publication of EP2386760A1 publication Critical patent/EP2386760A1/en
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Publication of EP2386760B1 publication Critical patent/EP2386760B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/84—Casings, cabinets or frameworks; Trolleys or like movable supports

Definitions

  • the subject of the invention is a protective device for a dosing or transfer pump.
  • the metering or transfer pumps are generally arranged near the storage tanks for dangerous or non-hazardous liquid products. Their function is to extract in a controlled manner the stored liquid to bring it to a site where it will be used.
  • Safety recommendations or recommendations include, in particular, when hazardous liquids are dosed and transferred, that the metering and transfer pumps are equipped with an individual anti-projection device to visualize the equipment, to safely access the controls. adjustments and authorizing intervention on equipment while protecting the operator.
  • protection devices comprising a hollow rigid cabinet inside which is positioned at least one hydraulic circuit associated with a metering or transfer pump, the interior of said cabinet being accessible by at least one door disposed on its front face. All leakage residues remain in the cabinet, however pumps and other hydraulic circuit elements remain easily accessible.
  • JP 2000-355961 describes such a device. The preamble of the independent claim is based on said document.
  • the protection cabinets known from the prior art are generally made of boilermaking and are custom designed, that is to say that they adapt specifically to the configuration of the hydraulic circuit they must protect, and in particular to the model of the pump. Indeed, the various elements of the hydraulic circuit, including the pump, are fixed on the bottom wall of the cabinet. In practice, the configuration of the hydraulic circuit is almost constant from one installation to another and only the model of the pump changes. However, a small pump will not be positioned in the same way as a larger pump. Therefore, it has appeared necessary to design specific individual cabinets, suitable for a given hydraulic circuit and a given pump model.
  • the main objective of the invention is to provide a "universal" protection device that can be adapted to a large number of models of metering or transfer pumps.
  • the dosing or transfer pumps available on the market have weights ranging from 1 Kg to 20 Kg or more. It is therefore not easy to handle them and even less to fix them against the bottom wall of a cabinet. Also, it is particularly difficult to position the various elements of the hydraulic circuit and to connect them inside the cabinet itself.
  • Another object of the invention is therefore to provide a protection device facilitating the mounting of the various elements of the hydraulic circuit and the pump inside a protective cabinet.
  • the bottom wall of the cabinet is preferably provided with relief elements ensuring the positioning of the support plate against said bottom wall.
  • the pump is advantageously arranged on a support member intended to be fixed against the support plate, said plate comprising at least two horizontal grooves positioned one above the other and intended to receive said support member.
  • a hydraulic circuit associated with several pumps can also be positioned inside the cabinet, each pump and its associated circuit portion being mounted on an independent removable support plate.
  • the cabinet is made in one piece of molded plastic.
  • a drip retention tank from the hydraulic circuit and / or the pump is integrated at the bottom of the cabinet.
  • the cabinet can then integrate a visual and / or audible alarm connected to a level sensor arranged in the holding tank, said alarm being triggered when a maximum level of dripping is reached in said tray.
  • the side walls of the cabinet comprise respectively in the upper part and in the lower part of the parts of lesser thickness intended to be cut and / or drilled to form a natural ventilation inside said cabinet.
  • the interior of the cabinet is advantageously accessible by one or more doors made in one piece of molded plastic, at least one of said doors having at least one opening opening into the interior of the structure and in which is fixed a compartment to EAR.
  • the side walls of the cabinet are advantageously provided with at least one opening opening inside said cabinet, said opening being closed by a transparent plate.
  • the device that is the subject of the invention is intended to protect metering or transfer pumps as well as the associated hydraulic circuits.
  • This device protects the operator, secures the installations and preserves the environment from all the dangers inherent to the dosing or pump transfer operations: dangers related to product errors; risks related to piping connections (sealing of fittings, etc.); the danger of splashing when the pipes are pressurized; risks of leaks and projections in case of malfunction of a dosing pump, etc.
  • the protective device comprises a hollow rigid cabinet 1 inside which is positioned at least one hydraulic circuit 2 associated with at least one dosing or transfer pump 3.
  • the cabinet 1 may contain one, two, three or more pumps 3 as needed.
  • the hydraulic circuit 2 may for example contain, in addition to the pump 3, piping, a calibration pot, isolation valves, purge valves, front filters, anti-pulsation balloons, discharge valves, manometers, or any other hydraulic element usually used by those skilled in the art.
  • the cabinet 1 is preferably made in one piece of molded plastic. It can for example be obtained by roto-molding.
  • the constituent material of the cabinet 1 is advantageously an anti-corrosion material, resistant to shocks and UV and inert to chemicals. In practice, HDPE is used, but any other material suitable for those skilled in the art can be used.
  • the width may be about 800 mm, its height about 1400 mm and its depth about 600 mm.
  • its width may be about 1400 mm, its height about 1400 mm and its depth about 600 mm.
  • its width may be about 2000 mm, its height about 1400 mm and its depth about 600 mm.
  • the interior of the cabinet 1 is accessible through at least one door 4 disposed on its front face.
  • doors 4 are provided as there are pumps 3, said doors being arranged directly opposite said pumps. In this way, to intervene on a pump 3, or on the hydraulic circuit portion 2 associated with it, it is sufficient to open the corresponding door 4 without having to open the other doors.
  • the door or doors 4 are made in one piece of molded plastic whose constituent material is advantageously the same as that of the cabinet 1.
  • the lugs 42 are provided on the doors 4 and on the front face of the cabinet 1 for receive a padlock for locking said doors. These lugs 42 are positioned at the top and / or bottom of the doors 4. It is advantageously provided on or under the doors 4, a location dedicated to a key for opening the lock padlocks.
  • each door 4 comprises at least one opening opening inside the structure and in which is fixed a compartment EPI 40 (EPI for Personal Protective Equipment: combination, anti-acid gloves, glasses).
  • EPI 40 Personal Protective Equipment: combination, anti-acid gloves, glasses.
  • each door 4 has an equal number of openings opening into the interior of the cabinet 1, these openings can either be closed by an EPI compartment 40 or be closed by a transparent plate 41.
  • the compartment EPI 40 is first inserted into one of the openings and then its edges are glued or welded around the periphery of said opening.
  • a location dedicated to a spare key allowing the opening of said EPI compartment.
  • the hydraulic circuit 2 and the pump 3 are mounted on a removable support plate 5.
  • the material constituting the support plate 5 is advantageously an anti-corrosion material, resistant to shocks and UV and inert to chemicals. In practice, HDPE is used, but any other material suitable for those skilled in the art can be used.
  • the dimensions of the support plate 5 are for example 500 mm wide, 1000 mm high and a few tens of millimeters thick.
  • the pump 3 is disposed on a support element 6 intended to be fixed against the support plate 5.
  • This support element 6 can be likened to a bracket.
  • the support plate 5 advantageously comprises at least two horizontal grooves 50 positioned one above the other and intended to receive the support element 6. By positioning the latter on one or the other of the horizontal grooves 50 it is therefore possible to vary the vertical position of the pump 3 on the support plate 5 and therefore in the cabinet 1. And by varying the position of the support element 6 in one of the grooves 50, it is possible to vary the horizontal position of the pump 3, on the support plate 5 and thus in the cabinet 1.
  • the support plate 5 is advantageously equipped with a series of pins 21 for facilitating the positioning and organization of the hydraulic elements 20 on said plate.
  • the bottom wall of the cabinet 1 is provided with relief elements 7 enabling the support plate 5 to be placed in position.
  • These elements 7 project towards the front of the cabinet 1 and have a shape complementary to the support plate 5.
  • the edges of the latter may also be provided with additional cutouts cooperating with the raised elements 7 so as to optimize the positioning.
  • the side edges 10 of the vertical bottom wall of the cabinet 1 extend outwardly of said cabinet and are provided with orifices 100 for the passage of fastener against a wall.
  • the orifices 100 are preferably open on the sides of the edges 10 so as to facilitate the positioning of the fasteners.
  • These fasteners are typically conventional fasteners.
  • the cabinet 1 can therefore be fixed easily and quickly on site with simple tools.
  • the retention tank 11 has an orifice 110 for discharging the drips.
  • drips projections, leaks, ...) are recovered in the holding tank 11, they are automatically directed, by gravity, to the orifice 110.
  • the latter is configured to connect to a pipe equipped with a valve 112 for safely extracting drips.
  • the latter are directed either to a tank or barrel disposed under the cabinet 1 or to a subsidiary hydraulic circuit recovery.
  • the orifice 110 is disposed on the front face of the cabinet 1, but provision could be made to arrange it on one of the sides of said cabinet. In order to save space, a recess is provided for embedding the pipework equipped with the valve 112 in the cabinet 1.
  • the cabinet 1 advantageously comprises a location for a visual and / or audible alarm 12.
  • This alarm can be connected to a level sensor arranged in the retention tank 11, said alarm being triggered when a maximum level dripping is achieved in said tank.
  • a visual level tube for example to outdoor float, equipped with a sensor safety (for example: magnetic counterweight).
  • the side walls of the cabinet 1 are advantageously provided with at least one opening 13 opening inside said cabinet, said opening being closed by a transparent plate. Also, it is advantageous that the side walls of the cabinet 1 respectively comprise in the upper part and in the lower part of the smaller thicknesses 14 provided to be cut and / or drilled so as to form a natural ventilation inside said wardrobe. It is also possible to provide parts of less thickness intended to be cut and / or pierced so as to be able to install a forced ventilation system of the fan type.
  • the walls of the cabinet 1 are equipped with an inlet connection 91 and an outlet connection 92.
  • the inlet connection 91 makes it possible to connect the inlet of the hydraulic circuit 2 to an inlet duct 910 liquid product to be dosed.
  • This inlet duct 910 is connected to a reservoir or a storage container of the product to be dosed.
  • the outlet fitting 92 makes it possible to connect the output of the hydraulic circuit 2 to an evacuation duct 920 of the dosed liquid product.
  • This exhaust duct 920 is typically connected to the injection point of the product such as: basin, tank, pipe, specific installation, etc.
  • the inlet duct 910 and the evacuation duct 920 are preferably made of PTFE so as to effectively resist any attack of the product to be dosed. Any other material such as stainless steel, plastic, or other, may however be used by those skilled in the art.
  • a nut 931 is screwed onto the threaded portion of the duct 93 so that the shoulder 930 and said nut grip the wall of the cabinet 1.
  • the seals 932 are preferably placed between the shoulder 930 and the wall of the cabinet to seal the fitting.
  • the evacuation duct 920 thus passes through the hollow threaded duct 93.
  • its wall is doubled which is located outside said cabinet.
  • the evacuation duct 920 is passed through an external duct 94 whose end is screwed onto the threaded end of the duct 93.
  • the outlet fitting 92 is thus totally secured, nor the evacuation duct 920, neither the external duct 94 being accidentally disconnected from the cabinet 1.
  • the constituent material of the external duct 94 may be steel, stainless steel, plastic, or any other material suitable for use by the man job.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

Domaine technique de l'invention.Technical Field of the Invention

L'invention a pour objet un dispositif de protection pour pompe de dosage ou de transfert.The subject of the invention is a protective device for a dosing or transfer pump.

Elle concerne le domaine technique des équipements pour protéger les pompes permettant d'extraire des produits liquides dangereux (du type produit pétrolier, soude, acide sulfurique, acide chlorhydrique, acide phosphorique, chlorure ferrique, ammoniaque, etc.) ou non dangereux (du type produit alimentaire, eau, etc.), depuis la cuve dans laquelle ils sont stockés vers leur lieu d'utilisation.It concerns the technical field of equipment to protect pumps for extracting dangerous liquid products (of the type petroleum product, soda, sulfuric acid, hydrochloric acid, phosphoric acid, ferric chloride, ammonia, etc.) or non-hazardous (of the type food product, water, etc.), from the tank in which they are stored to their place of use.

État de la technique.State of the art

Les pompes de dosage ou de transfert sont généralement disposées à proximité des cuves de stockage de produits liquides dangereux ou non dangereux. Elles ont pour fonction de soutirer de manière contrôlée le liquide stocké pour l'amener vers un site où il sera utilisé.The metering or transfer pumps are generally arranged near the storage tanks for dangerous or non-hazardous liquid products. Their function is to extract in a controlled manner the stored liquid to bring it to a site where it will be used.

Ces pompes sont habituellement intégrées dans un circuit hydraulique plus complexe comprenant, outre les tuyauteries, un certain nombre de vannes, de filtres, de soupapes, de manomètres, etc. Les raccords entre ces différents éléments engendrent inévitablement des fuites ou égouttures qu'il est nécessaire de contrôler. De plus, la mise sous pression des tuyauteries et/ou le dysfonctionnement d'une pompe peuvent induire des risques de fuites ou de projections dont il faut savoir se protéger.These pumps are usually integrated in a more complex hydraulic circuit including, besides the pipes, a number of valves, filters, valves, manometers, etc. The connections between these different elements inevitably generate leaks or drips that need to be controlled. In addition, pressurizing the pipes and / or the malfunction of a pump may induce risks of leaks or projections which must be known to protect themselves.

Des recommandations ou préconisations de sécurité conseillent notamment, lorsque des liquides dangereux sont dosés et transférés, que les pompes de dosage et de transfert soient équipées d'un dispositif anti-projection individuelle permettant de visualiser l'équipement, d'accéder sans risque aux commandes de réglages et autorisant l'intervention sur un équipement en protégeant l'opérateur. Pour ce faire, il est connu d'utiliser des dispositifs de protection comprenant une armoire rigide creuse à l'intérieur de laquelle est positionnée au moins un circuit hydraulique associé à une pompe de dosage ou de transfert, l'intérieur de ladite armoire étant accessible par au moins une porte disposée sur sa face avant. Tous les résidus de fuite restent dans l'armoire, les pompes et les autres éléments du circuit hydraulique restant toutefois facilement accessibles. JP 2000-355961 décrit un tel dispositif. Le préambule de la revendication indépendante est basé sur ledit document.Safety recommendations or recommendations include, in particular, when hazardous liquids are dosed and transferred, that the metering and transfer pumps are equipped with an individual anti-projection device to visualize the equipment, to safely access the controls. adjustments and authorizing intervention on equipment while protecting the operator. To do this, it is known to use protection devices comprising a hollow rigid cabinet inside which is positioned at least one hydraulic circuit associated with a metering or transfer pump, the interior of said cabinet being accessible by at least one door disposed on its front face. All leakage residues remain in the cabinet, however pumps and other hydraulic circuit elements remain easily accessible. JP 2000-355961 describes such a device. The preamble of the independent claim is based on said document.

Les armoires de protection connues de l'art antérieur sont généralement réalisées en chaudronnerie et sont conçues sur mesure, c'est-à-dire qu'elles s'adaptent spécifiquement à la configuration du circuit hydraulique qu'elles doivent protéger, et en particulier au modèle de la pompe. En effet, les différents éléments du circuit hydraulique, y compris la pompe, sont fixés sur la paroi de fond de l'armoire. En pratique, la configuration du circuit hydraulique est quasi constante d'une installation à l'autre et seul le modèle de la pompe change. Or, une pompe de petites dimensions ne sera pas positionnée de la même manière qu'une pompe de plus grandes dimensions. Dès lors, il est apparu nécessaire de concevoir des armoires individuelles spécifiques, convenant à un circuit hydraulique donné et à un modèle de pompe donné.The protection cabinets known from the prior art are generally made of boilermaking and are custom designed, that is to say that they adapt specifically to the configuration of the hydraulic circuit they must protect, and in particular to the model of the pump. Indeed, the various elements of the hydraulic circuit, including the pump, are fixed on the bottom wall of the cabinet. In practice, the configuration of the hydraulic circuit is almost constant from one installation to another and only the model of the pump changes. However, a small pump will not be positioned in the same way as a larger pump. Therefore, it has appeared necessary to design specific individual cabinets, suitable for a given hydraulic circuit and a given pump model.

L'objectif principal de l'invention est de proposer un dispositif de protection « universel » pouvant s'adapter à un grand nombre de modèles de pompes de dosage ou de transfert.The main objective of the invention is to provide a "universal" protection device that can be adapted to a large number of models of metering or transfer pumps.

Les pompes de dosage ou de transfert disponibles sur le marché ont des poids qui varient de 1 Kg à 20 Kg ou plus. Il n'est donc pas aisé de les manipuler et encore moins de les fixer contre la paroi de fond d'une armoire. Également, il est particulièrement délicat de positionner les différents éléments du circuit hydraulique et de les relier à l'intérieur même de l'armoire.The dosing or transfer pumps available on the market have weights ranging from 1 Kg to 20 Kg or more. It is therefore not easy to handle them and even less to fix them against the bottom wall of a cabinet. Also, it is particularly difficult to position the various elements of the hydraulic circuit and to connect them inside the cabinet itself.

Un autre objectif de l'invention est donc de proposer un dispositif de protection facilitant le montage des différents éléments du circuit hydraulique et de la pompe à l'intérieur d'une l'armoire de protection.Another object of the invention is therefore to provide a protection device facilitating the mounting of the various elements of the hydraulic circuit and the pump inside a protective cabinet.

Divulgation de l'invention.Disclosure of the invention.

La solution technique proposée par l'invention est un dispositif de pompes de dosage ou de transfert, comprenant une armoire de protection rigide creuse à l'intérieur de laquelle est positionnée au moins un circuit hydraulique associé à une pompe de dosage ou de transfert, l'intérieur de ladite armoire étant accessible par au moins une porte disposée sur sa face avant, ce dispositif étant remarquable en ce que :

  • le circuit hydraulique et la pompe sont montés sur une plaque support amovible destinée à être fixée à l'intérieur de l'armoire, contre la paroi de fond de cette dernière
  • la plaque support comporte des moyens pour régler la position verticale et la position horizontale de la pompe à l'intérieur de ladite armoire.
The technical solution proposed by the invention is a metering or transfer pump device, comprising a hollow rigid protection cabinet inside which is positioned at least one hydraulic circuit associated with a metering or transfer pump, interior of said cabinet being accessible by at least one door disposed on its front face, this device being remarkable in that:
  • the hydraulic circuit and the pump are mounted on a removable support plate intended to be fixed inside the cabinet, against the bottom wall of the latter
  • the support plate comprises means for adjusting the vertical position and the horizontal position of the pump inside said cabinet.

On peut maintenant facilement monter l'ensemble des éléments du circuit hydraulique et la pompe sur la plaque support, en dehors de l'armoire, puis fixer l'ensemble contre la paroi de fond de cette dernière. Également, en ayant un réglage horizontal et vertical de la position de la pompe, à l'intérieur de l'armoire, un opérateur peut envisager d'utiliser pour une même armoire, plusieurs modèles de pompe.It is now easy to mount all the elements of the hydraulic circuit and the pump on the support plate, outside the cabinet, then fix the assembly against the bottom wall of the latter. Also, by having a horizontal and vertical adjustment of the position of the pump, inside the cabinet, an operator can consider using for the same cabinet, several pump models.

La paroi de fond de l'armoire est préférentiellement pourvue d'éléments en relief assurant la mise en position de la plaque support contre ladite paroi de fond.The bottom wall of the cabinet is preferably provided with relief elements ensuring the positioning of the support plate against said bottom wall.

La pompe est avantageusement disposée sur un élément support destiné à être fixé contre la plaque support, ladite plaque comportant au moins deux rainures horizontales positionnées l'une au-dessus de l'autre et destinées à recevoir ledit élément support.The pump is advantageously arranged on a support member intended to be fixed against the support plate, said plate comprising at least two horizontal grooves positioned one above the other and intended to receive said support member.

Un circuit hydraulique associé à plusieurs pompes peut également être positionné à l'intérieur de l'armoire, chaque pompe ainsi que sa portion de circuit associé étant montés sur une plaque support amovible indépendante.A hydraulic circuit associated with several pumps can also be positioned inside the cabinet, each pump and its associated circuit portion being mounted on an independent removable support plate.

Préférentiellement, l'armoire est réalisée en une seule pièce en plastique moulée.Preferably, the cabinet is made in one piece of molded plastic.

Selon une caractéristique avantageuse de l'invention, un bac de rétention des égouttures provenant du circuit hydraulique et/ou de la pompe est intégré au fond de l'armoire. L'armoire peut alors intégrer une alarme visuelle et/ou sonore connectée à un capteur de niveau agencé dans le bac de rétention, ladite alarme étant déclenchée lorsqu'un niveau maximal d'égouttures est atteint dans ledit bac.According to an advantageous characteristic of the invention, a drip retention tank from the hydraulic circuit and / or the pump is integrated at the bottom of the cabinet. The cabinet can then integrate a visual and / or audible alarm connected to a level sensor arranged in the holding tank, said alarm being triggered when a maximum level of dripping is reached in said tray.

Avantageusement, les parois latérales de l'armoire comportent respectivement en partie haute et en partie basse des parties de moindre épaisseur prévues pour être découpées et/ou percées de manière à former une aération naturelle à l'intérieur de ladite armoire.Advantageously, the side walls of the cabinet comprise respectively in the upper part and in the lower part of the parts of lesser thickness intended to be cut and / or drilled to form a natural ventilation inside said cabinet.

L'intérieur de l'armoire est avantageusement accessible par une ou plusieurs portes réalisées en une seule pièce en plastique moulée, au moins une desdites portes comportant au moins une ouverture débouchant à l'intérieur de la structure et dans laquelle est fixé un compartiment à EPI.The interior of the cabinet is advantageously accessible by one or more doors made in one piece of molded plastic, at least one of said doors having at least one opening opening into the interior of the structure and in which is fixed a compartment to EAR.

Les parois latérales de l'armoire sont avantageusement pourvues d'au moins une ouverture débouchant à l'intérieur de ladite armoire, ladite ouverture étant obturée par une plaque transparente.The side walls of the cabinet are advantageously provided with at least one opening opening inside said cabinet, said opening being closed by a transparent plate.

Les parois de l'armoire sont préférentiellement équipées :

  • d'un raccord d'entrée permettant de connecter l'entrée du circuit hydraulique à un conduit d'arrivée du produit liquide à doser,
  • d'un raccord de sortie permettant de connecter la sortie du circuit hydraulique à un conduit d'évacuation du produit liquide dosé.
The walls of the cabinet are preferably equipped with:
  • an inlet connector for connecting the inlet of the hydraulic circuit to an inlet conduit for the liquid product to be dosed,
  • an outlet connector for connecting the output of the hydraulic circuit to a conduit for discharging the dosed liquid product.

Dans le but de sécuriser le raccord de sortie :

  • le conduit d'évacuation traverse la paroi de l'armoire pour se connecter à la sortie du circuit hydraulique qui est disposée à l'intérieur de ladite armoire,
  • l'ouverture réalisée dans la paroi de l'armoire est obturée par un passe-paroi sur lequel est connecté un conduit externe,
  • le conduit externe est disposé de façon à doubler la paroi du conduit d'évacuation qui est située à l'extérieur de l'armoire.
In order to secure the outlet fitting:
  • the evacuation duct passes through the wall of the cabinet to connect to the outlet of the hydraulic circuit which is disposed inside said cabinet,
  • the opening made in the wall of the cabinet is closed by a wall-pass on which is connected an external conduit,
  • the outer duct is arranged to double the wall of the exhaust duct which is located outside the cabinet.

Dans le but de sécuriser le raccord d'entrée :

  • le conduit d'arrivée traverse la paroi de l'armoire pour se connecter à l'entrée du circuit hydraulique qui est disposée à l'intérieur de ladite armoire,
  • l'ouverture réalisée dans la paroi de l'armoire est obturée par un passe-paroi sur lequel est connecté un conduit externe,
  • le conduit externe est disposé de façon à doubler la paroi du conduit d'arrivée qui est située à l'extérieur de l'armoire.
In order to secure the inlet connection:
  • the inlet duct passes through the wall of the cabinet to connect to the inlet of the hydraulic circuit which is disposed inside said cabinet,
  • the opening made in the wall of the cabinet is closed by a wall-pass on which is connected an external conduit,
  • the outer duct is arranged so as to double the wall of the inlet duct which is located outside the cabinet.

Description des figures.Description of the figures.

D'autres avantages et caractéristiques de l'invention apparaîtront mieux à la lecture de la description d'un mode de réalisation préféré qui va suivre, en référence aux dessins annexés, réalisés à titre d'exemples indicatifs et non limitatifs et sur lesquels :

  • la figure 1 est une vue en perspective isométrique d'un dispositif de protection conforme à l'invention et destiné à recevoir une seule pompe de dosage ou de transfert et son circuit hydraulique associé,
  • la figure 2 est une vue de face d'une pompe et de son circuit hydraulique associé, fixés sur une plaque support,
  • la figure 3 est une vue en perspective illustrant le principe du montage de la plaque support à l'intérieur de l'armoire représentée sur la figure 1,
  • la figure 4 est une vue en perspective isométrique d'un dispositif de protection conforme à l'invention et destiné à recevoir deux pompes de dosage et le circuit hydraulique associé,
  • la figure 5 est une vue de face de deux pompes et de leur portion de circuit hydraulique associé, fixés sur deux plaques support,
  • la figure 6 est une vue de face d'un dispositif de protection conforme à l'invention et destiné à recevoir trois pompes de dosage et le circuit hydraulique associé,
  • la figure 7 est une vue de face de trois pompes et de leur portion de circuit hydraulique associé, fixés sur trois plaques support,
  • la figure 8 est une section verticale d'une armoire rigide conforme à l'invention, sans plaque support amovible ni circuit hydraulique, visant à montrer schématiquement les raccords d'entrée et de sortie de ladite armoire ;
  • la figure 9 est une vue agrandie du détail D de la figure 8.
Other advantages and characteristics of the invention will appear better on reading the description of a preferred embodiment which will follow, with reference to the accompanying drawings, carried out as indicative and non-limiting examples and in which:
  • the figure 1 is an isometric perspective view of a protection device according to the invention and intended to receive a single metering or transfer pump and its associated hydraulic circuit,
  • the figure 2 is a front view of a pump and its associated hydraulic circuit, fixed on a support plate,
  • the figure 3 is a perspective view illustrating the principle of mounting the support plate inside the cabinet shown on the figure 1 ,
  • the figure 4 is an isometric perspective view of a protection device according to the invention and intended to receive two metering pumps and the associated hydraulic circuit,
  • the figure 5 is a front view of two pumps and their associated hydraulic circuit portion, fixed on two support plates,
  • the figure 6 is a front view of a protection device according to the invention and intended to receive three dosing pumps and the associated hydraulic circuit,
  • the figure 7 is a front view of three pumps and their associated hydraulic circuit portion, fixed on three support plates,
  • the figure 8 is a vertical section of a rigid cabinet according to the invention, without removable support plate or hydraulic circuit, to show schematically the inlet and outlet connections of said cabinet;
  • the figure 9 is an enlarged view of detail D of the figure 8 .

Modes de réalisation de l'invention.Embodiments of the invention

Le dispositif objet de l'invention est destiné à protéger des pompes de dosage ou de transfert ainsi que les circuits hydrauliques associés. Ce dispositif permet de protéger l'opérateur, sécurise les installations et préserve l'environnement de tous les dangers inhérents aux opérations de dosage ou de transfert par pompe : dangers liés aux erreurs de produits ; risques liés aux raccordements de tuyauterie (étanchéités des raccords, ...) ; dangers de projections à la mise sous pression des tuyauteries ; risques de fuites et projections en cas de dysfonctionnement d'une pompe doseuse, etc.The device that is the subject of the invention is intended to protect metering or transfer pumps as well as the associated hydraulic circuits. This device protects the operator, secures the installations and preserves the environment from all the dangers inherent to the dosing or pump transfer operations: dangers related to product errors; risks related to piping connections (sealing of fittings, etc.); the danger of splashing when the pipes are pressurized; risks of leaks and projections in case of malfunction of a dosing pump, etc.

En se rapportant aux figures annexées, le dispositif de protection comprend une armoire rigide creuse 1 à l'intérieur de laquelle est positionné au moins un circuit hydraulique 2 associé à au moins une pompe 3 de dosage ou de transfert. L'armoire 1 peut contenir une, deux, trois ou un nombre supérieur de pompes 3 selon le besoin. Le circuit hydraulique 2 peut par exemple contenir, outre la pompe 3, de la tuyauterie, un pot d'étalonnage, des vannes d'isolement, des vannes de purge, des filtres avant, des ballons anti-pulsatoire, des soupapes de décharge, des manomètres, ou tout autre élément hydraulique 20 habituellement utilisé par l'homme du métier.With reference to the appended figures, the protective device comprises a hollow rigid cabinet 1 inside which is positioned at least one hydraulic circuit 2 associated with at least one dosing or transfer pump 3. The cabinet 1 may contain one, two, three or more pumps 3 as needed. The hydraulic circuit 2 may for example contain, in addition to the pump 3, piping, a calibration pot, isolation valves, purge valves, front filters, anti-pulsation balloons, discharge valves, manometers, or any other hydraulic element usually used by those skilled in the art.

L'armoire 1 est préférentiellement réalisée en une seule pièce en plastique moulée. Elle peut par exemple être obtenue par roto-moulage. Le matériau constitutif de l'armoire 1 est avantageusement un matériau anti-corrosion, résistant aux chocs et aux UV et inerte aux produits chimiques. En pratique, on utilise du PEHD, mais tout autre matériau convenant à l'homme du métier peut être employé.The cabinet 1 is preferably made in one piece of molded plastic. It can for example be obtained by roto-molding. The constituent material of the cabinet 1 is advantageously an anti-corrosion material, resistant to shocks and UV and inert to chemicals. In practice, HDPE is used, but any other material suitable for those skilled in the art can be used.

Lorsque l'armoire 1 est destinée à contenir une seule pompe 3 (figure 1), sa largeur peut être d'environ 800 mm, sa hauteur d'environ 1400 mm et sa profondeur d'environ 600 mm. Pour deux pompes 3 (figure 4), sa largeur peut être d'environ 1400 mm, sa hauteur d'environ 1400 mm et sa profondeur d'environ 600 mm. Pour trois pompes 3 (figure 6), sa largeur peut être d'environ 2000 mm, sa hauteur d'environ 1400 mm et sa profondeur d'environ 600 mm.When the cabinet 1 is intended to contain a single pump 3 ( figure 1 ), its width may be about 800 mm, its height about 1400 mm and its depth about 600 mm. For two pumps 3 ( figure 4 ), its width may be about 1400 mm, its height about 1400 mm and its depth about 600 mm. For three pumps 3 ( figure 6 ), its width may be about 2000 mm, its height about 1400 mm and its depth about 600 mm.

L'intérieur de l'armoire 1 est accessible par au moins une porte 4 disposée sur sa face avant. En pratique, on prévoit autant de portes 4 qu'il y a de pompes 3, lesdites portes étant disposées directement en vis-à-vis desdites pompes. De cette manière, pour intervenir sur une pompe 3, ou sur la portion de circuit hydraulique 2 qui lui est associé, il est suffisant d'ouvrir la porte 4 correspondante sans avoir à ouvrir les autres portes. La ou les portes 4 sont réalisées en une seule pièce en plastique moulée dont le matériau constitutif est avantageusement le même que celui de l'armoire 1. Des ergots 42 sont prévus sur les portes 4 et sur la face avant de l'armoire 1 pour recevoir un cadenas permettant le verrouillage desdites portes. Ces ergots 42 sont positionnés en partie haute et/ou basse des portes 4. On prévoit avantageusement sur ou sous les portes 4, un emplacement dédié à une clé permettant l'ouverture des cadenas de verrouillage.The interior of the cabinet 1 is accessible through at least one door 4 disposed on its front face. In practice, as many doors 4 are provided as there are pumps 3, said doors being arranged directly opposite said pumps. In this way, to intervene on a pump 3, or on the hydraulic circuit portion 2 associated with it, it is sufficient to open the corresponding door 4 without having to open the other doors. The door or doors 4 are made in one piece of molded plastic whose constituent material is advantageously the same as that of the cabinet 1. The lugs 42 are provided on the doors 4 and on the front face of the cabinet 1 for receive a padlock for locking said doors. These lugs 42 are positioned at the top and / or bottom of the doors 4. It is advantageously provided on or under the doors 4, a location dedicated to a key for opening the lock padlocks.

En se rapportant aux figures 1, 4 et 6, au moins une des portes 4 comporte au moins une ouverture débouchant à l'intérieur de la structure et dans laquelle est fixé un compartiment à EPI 40 (EPI pour Equipement de Protection Individuelle : combinaison, gants anti-acides, lunettes). En pratique, chaque porte 4 comporte un nombre égal d'ouvertures débouchant à l'intérieur de l'armoire 1, ces ouvertures pouvant soit être obturées par un compartiment à EPI 40 soit être obturées par une plaque transparente 41. Le compartiment à EPI 40 est d'abord inséré dans une des ouvertures puis ses bords sont collés ou soudés sur le pourtour de ladite ouverture. On prévoit avantageusement sur ou sous le compartiment à EPI 40 un emplacement dédié à une clé de secours permettant l'ouverture dudit compartiment EPI.By referring to figures 1 , 4 and 6 at least one of the doors 4 comprises at least one opening opening inside the structure and in which is fixed a compartment EPI 40 (EPI for Personal Protective Equipment: combination, anti-acid gloves, glasses). In practice, each door 4 has an equal number of openings opening into the interior of the cabinet 1, these openings can either be closed by an EPI compartment 40 or be closed by a transparent plate 41. The compartment EPI 40 is first inserted into one of the openings and then its edges are glued or welded around the periphery of said opening. Advantageously, on or beneath the compartment EPI 40 a location dedicated to a spare key allowing the opening of said EPI compartment.

En se rapportant à la figure 2, le circuit hydraulique 2 et la pompe 3 sont montés sur une plaque support amovible 5. Le matériau constitutif de la plaque support 5 est avantageusement un matériau anti-corrosion, résistant aux chocs et aux UV et inerte aux produits chimiques. En pratique, on utilise du PEHD, mais tout autre matériau convenant à l'homme du métier peut être employé. Les dimensions de la plaque support 5 sont par exemple de 500 mm de large, 1000 mm de haut et quelques dizaines de millimètres d'épaisseur. En se rapportant aux figures 5 et 7, lorsque le circuit hydraulique est associé à plusieurs pompes 3, chaque pompe ainsi que sa portion de circuit associée 2 sont montés sur une plaque support amovible indépendante 5. Ceci évite d'avoir recours à plusieurs modèles de plaque support.By referring to the figure 2 , the hydraulic circuit 2 and the pump 3 are mounted on a removable support plate 5. The material constituting the support plate 5 is advantageously an anti-corrosion material, resistant to shocks and UV and inert to chemicals. In practice, HDPE is used, but any other material suitable for those skilled in the art can be used. The dimensions of the support plate 5 are for example 500 mm wide, 1000 mm high and a few tens of millimeters thick. By referring to figures 5 and 7 when the hydraulic circuit is associated with several pumps 3, each pump and its associated circuit portion 2 are mounted on an independent removable support plate 5. This avoids the use of several models of support plate.

La pompe 3 est disposée sur un élément support 6 destiné à être fixé contre la plaque support 5. Cet élément support 6 peut s'apparenter à une équerre. La plaque support 5 comporte avantageusement au moins deux rainures horizontales 50 positionnées l'une au-dessus de l'autre et destinées à recevoir l'élément support 6. En positionnant ce dernier sur l'une ou sur l'autre des rainures horizontales 50, il est donc possible de faire varier la position verticale de la pompe 3 sur la plaque support 5 et donc dans l'armoire 1. Et en faisant varier la position de l'élément support 6 dans une des rainures 50, il est donc possible de faire varier la position horizontale de la pompe 3, sur la plaque support 5 et donc dans l'armoire 1. Il est bien évidemment possible de prévoir plus de deux rainures 50, mais le demandeur a constaté qu'avec simplement deux rainures d'environ 500 mm de long et espacées d'environ 100 mm, la grande majorité des pompes de dosage ou de transfert du commerce pouvait être correctement positionnées et en particulier celles ayant un débit compris entre 0 L/H et 400 L/H. Le maintien en position de l'élément support 6 dans les rainures 50 est réalisé au moyen d'éléments de visserie classiques. Selon la conception de la pompe 3 et notamment si elle comporte une embase adaptée, il serait possible de fixer directement ladite pompe dans les rainures 50. On pourrait également prévoir d'autres moyens de réglage de la position verticale et de la position horizontale de la pompe 3 tels que des séries verticales et horizontales de perçages.The pump 3 is disposed on a support element 6 intended to be fixed against the support plate 5. This support element 6 can be likened to a bracket. The support plate 5 advantageously comprises at least two horizontal grooves 50 positioned one above the other and intended to receive the support element 6. By positioning the latter on one or the other of the horizontal grooves 50 it is therefore possible to vary the vertical position of the pump 3 on the support plate 5 and therefore in the cabinet 1. And by varying the position of the support element 6 in one of the grooves 50, it is possible to vary the horizontal position of the pump 3, on the support plate 5 and thus in the cabinet 1. It is obviously possible to provide more than two grooves 50, but the applicant has found that with just two grooves about 500 mm long and spaced about 100 mm, the vast majority of commercial dosing or transfer pumps could be correctly positioned and particularly those having a flow rate between 0 L / H and 400 L / H. Keeping the support element 6 in position in the grooves 50 is achieved by means of conventional fasteners. According to design of the pump 3 and in particular if it comprises a suitable base, it would be possible to directly fix said pump in the grooves 50. One could also provide other means for adjusting the vertical position and the horizontal position of the pump 3 such as vertical and horizontal series of holes.

En se rapportant aux figures 2, 5 et 7, la plaque support 5 est avantageusement équipée d'une série de repères 21 permettant de faciliter le positionnement et l'organisation des éléments hydrauliques 20 sur ladite plaque.By referring to figures 2 , 5 and 7 , the support plate 5 is advantageously equipped with a series of pins 21 for facilitating the positioning and organization of the hydraulic elements 20 on said plate.

En se rapportant à la figure 3, la paroi de fond de l'armoire 1 est pourvue d'éléments en relief 7 permettant la mise en position de la plaque support 5. Ces éléments 7 sont en saillie vers l'avant de l'armoire 1 et ont une forme complémentaire de la plaque support 5. Les bords de cette dernière peuvent également être pourvus de découpes supplémentaires coopérant avec les éléments en relief 7 de manière à optimiser la mise en position. Une fois mise en place, la fixation de la plaque support 5 sur la paroi de fond de l'armoire 1 est réalisée au moyen de vis 8 ou de tous autres éléments similaires.By referring to the figure 3 the bottom wall of the cabinet 1 is provided with relief elements 7 enabling the support plate 5 to be placed in position. These elements 7 project towards the front of the cabinet 1 and have a shape complementary to the support plate 5. The edges of the latter may also be provided with additional cutouts cooperating with the raised elements 7 so as to optimize the positioning. Once in place, the fixing of the support plate 5 on the bottom wall of the cabinet 1 is performed by means of screws 8 or any other similar elements.

En se rapportant aux figures 1, 3, 4 et 6, les bords latéraux 10 de la paroi verticale de fond de l'armoire 1 s'étendent vers l'extérieur de ladite armoire et sont pourvus d'orifices 100 pour le passage d'élément de fixation contre une paroi. Les orifices 100 sont préférentiellement ouverts sur les côtés des bords 10 de manière à faciliter la mise en position des éléments de fixation. Ces éléments de fixation sont typiquement des éléments de visserie classique. L'armoire 1 peut donc être fixée facilement et rapidement sur site avec un outillage simple.By referring to figures 1 , 3 , 4 and 6 , the side edges 10 of the vertical bottom wall of the cabinet 1 extend outwardly of said cabinet and are provided with orifices 100 for the passage of fastener against a wall. The orifices 100 are preferably open on the sides of the edges 10 so as to facilitate the positioning of the fasteners. These fasteners are typically conventional fasteners. The cabinet 1 can therefore be fixed easily and quickly on site with simple tools.

Il est avantageux de prévoir un bac 11 de rétention des égouttures provenant du circuit hydraulique 2 et/ou de la pompe 3, ledit bac étant intégré au fond de l'armoire 1. Le bac de rétention 11 comporte un orifice 110 permettant d'évacuer les égouttures. Lorsque des égouttures (projections, fuites, ...) sont récupérées dans le bac de rétention 11, elles sont automatiquement dirigées, par gravité, vers l'orifice 110. Ce dernier est configuré pour se raccorder à une tuyauterie équipée d'une vanne 112 permettant d'extraire en toute sécurité les égouttures. Ces dernières sont dirigées soit vers une cuve ou un fût disposé sous l'armoire 1 soit vers un circuit hydraulique subsidiaire de récupération. En pratique, l'orifice 110 est disposé sur la face avant de l'armoire 1, mais on pourrait prévoir de le disposer sur un des côtés de ladite armoire. Dans l'objectif d'un gain de place, on prévoit un décroché permettant d'encastrer la tuyauterie équipée de la vanne 112 dans l'armoire 1.It is advantageous to provide a tray 11 for retention of drips from the hydraulic circuit 2 and / or the pump 3, said tray being integrated at the bottom of the cabinet 1. The retention tank 11 has an orifice 110 for discharging the drips. When drips (projections, leaks, ...) are recovered in the holding tank 11, they are automatically directed, by gravity, to the orifice 110. The latter is configured to connect to a pipe equipped with a valve 112 for safely extracting drips. The latter are directed either to a tank or barrel disposed under the cabinet 1 or to a subsidiary hydraulic circuit recovery. In practice, the orifice 110 is disposed on the front face of the cabinet 1, but provision could be made to arrange it on one of the sides of said cabinet. In order to save space, a recess is provided for embedding the pipework equipped with the valve 112 in the cabinet 1.

Dans sa partie supérieure, l'armoire 1 comporte avantageusement un emplacement pour une alarme visuelle et/ou sonore 12. Cette alarme peut être connectée à un capteur de niveau agencé dans le bac de rétention 11, ladite alarme étant déclenchée lorsqu'un niveau maximal d'égouttures est atteint dans ledit bac. Ainsi, l'opérateur peut être averti du moment où il doit vider les égouttures contenues dans le bac de rétention 11. Pour contrôler le niveau du bac de rétention 11, il est également possible d'utiliser un tube de niveau visuel, par exemple à flotteur extérieur, équipé d'une sécurité par capteur (par exemple : contre-poids magnétique).In its upper part, the cabinet 1 advantageously comprises a location for a visual and / or audible alarm 12. This alarm can be connected to a level sensor arranged in the retention tank 11, said alarm being triggered when a maximum level dripping is achieved in said tank. Thus, the operator can be warned when he must empty the drips contained in the holding tank 11. To control the level of the retention tank 11, it is also possible to use a visual level tube, for example to outdoor float, equipped with a sensor safety (for example: magnetic counterweight).

En se rapportant aux figures 1, 3 ou 4, les parois latérales de l'armoire 1 sont avantageusement pourvues d'au moins une ouverture 13 débouchant à l'intérieur de ladite armoire, ladite ouverture étant obturée par une plaque transparente. Également, il est avantageux que les parois latérales de l'armoire 1 comportent respectivement en partie haute et en partie basse des parties de moindre épaisseur 14 prévues pour être découpées et/ou percées de manière à former une aération naturelle à l'intérieur de ladite armoire. On peut également prévoir des parties de moindre épaisseur prévues pour être découpées et/ou percées de manière à pouvoir installer un système d'aération forcée du type ventilateur.By referring to figures 1 , 3 or 4 , the side walls of the cabinet 1 are advantageously provided with at least one opening 13 opening inside said cabinet, said opening being closed by a transparent plate. Also, it is advantageous that the side walls of the cabinet 1 respectively comprise in the upper part and in the lower part of the smaller thicknesses 14 provided to be cut and / or drilled so as to form a natural ventilation inside said wardrobe. It is also possible to provide parts of less thickness intended to be cut and / or pierced so as to be able to install a forced ventilation system of the fan type.

En se rapportant à la figure 8, les parois de l'armoire 1 sont équipées d'un raccord d'entrée 91 et d'un raccord de sortie 92. Le raccord d'entrée 91 permet de connecter l'entrée du circuit hydraulique 2 à un conduit d'arrivée 910 du produit liquide à doser. Ce conduit d'arrivée 910 est relié à un réservoir ou un container de stockage du produit à doser. Et le raccord de sortie 92 permet de connecter la sortie du circuit hydraulique 2 à un conduit d'évacuation 920 du produit liquide dosé. Ce conduit d'évacuation 920 est typiquement relié au point d'injection du produit tel que : bassin, cuve, canalisation, installation spécifique, etc. Le conduit d'arrivée 910 et le conduit d'évacuation 920 sont préférentiellement réalisés en PTFE de façon à résister efficacement aux agressions éventuelles du produit à doser. Tout autre matériau tel qu'inox, acier, plastique, ou autre, peut toutefois être utilisé par l'homme du métier.By referring to the figure 8 the walls of the cabinet 1 are equipped with an inlet connection 91 and an outlet connection 92. The inlet connection 91 makes it possible to connect the inlet of the hydraulic circuit 2 to an inlet duct 910 liquid product to be dosed. This inlet duct 910 is connected to a reservoir or a storage container of the product to be dosed. And the outlet fitting 92 makes it possible to connect the output of the hydraulic circuit 2 to an evacuation duct 920 of the dosed liquid product. This exhaust duct 920 is typically connected to the injection point of the product such as: basin, tank, pipe, specific installation, etc. The inlet duct 910 and the evacuation duct 920 are preferably made of PTFE so as to effectively resist any attack of the product to be dosed. Any other material such as stainless steel, plastic, or other, may however be used by those skilled in the art.

Pour éviter tout risque de fuite et dans le but de sécuriser la connexion de ces différents conduits 910, 920 à l'armoire 1, on prévoit un raccordement sécurisé qui est explicité en détail sur la figure 9. La solution montrée sur cette figure est relative au raccord de sortie 92 mais une solution similaire est utilisée pour le raccord d'entrée 91. Le conduit d'évacuation 920 traverse la paroi de l'armoire 1 pour se connecter par vissage à la sortie du circuit hydraulique qui se trouve à l'intérieur de ladite armoire. L'ouverture réalisée dans la paroi de l'armoire 1 est obturée par un passe-paroi. Ce dernier comprend un conduit fileté creux 93 débouchant à l'extérieur de l'armoire 1 et dont une extrémité est pourvue d'un épaulement 930 prenant appui contre la paroi interne de ladite armoire. Un écrou 931 se visse sur la partie filetée du conduit 93 de façon à ce que l'épaulement 930 et ledit écrou enserrent la paroi de l'armoire 1. Des joints 932 sont préférentiellement placés entre l'épaulement 930 et la paroi de l'armoire pour assurer l'étanchéité du raccord. Le conduit d'évacuation 920 passe donc par le conduit fileté creux 93. Pour éviter que le produit dosé ne se déverse en dehors de l'armoire 1 en cas de rupture dudit conduit d'évacuation 920, on double sa paroi qui est située à l'extérieur de ladite armoire. Pour ce faire, on passe le conduit d'évacuation 920 dans un conduit externe 94 dont l'extrémité est vissée sur l'extrémité filetée du conduit 93. Le raccord de sortie 92 est ainsi totalement sécurisé, ni le conduit d'évacuation 920, ni le conduit externe 94 ne risquant d'être débranchés accidentellement de l'armoire 1. Le matériau constitutif du conduit externe 94 peut être de l'acier, de l'inox, du plastique, ou tout autre matériau convenant à l'homme du métier.To avoid any risk of leakage and for the purpose of securing the connection of these various conduits 910, 920 to the cabinet 1, there is provided a secure connection which is explained in detail on the figure 9 . The solution shown in this figure is relative to the outlet fitting 92 but a similar solution is used for the inlet fitting 91. The exhaust duct 920 passes through the wall of the cabinet 1 to screw by screwing to the outlet of the hydraulic circuit which is inside said cabinet. The opening made in the wall of the cabinet 1 is closed by a wall pass. The latter comprises a hollow threaded conduit 93 opening out of the cabinet 1 and one end of which is provided with a shoulder 930 bearing against the inner wall of said cabinet. A nut 931 is screwed onto the threaded portion of the duct 93 so that the shoulder 930 and said nut grip the wall of the cabinet 1. The seals 932 are preferably placed between the shoulder 930 and the wall of the cabinet to seal the fitting. The evacuation duct 920 thus passes through the hollow threaded duct 93. To prevent the metered product from discharges outside the cabinet 1 in case of rupture of said exhaust duct 920, its wall is doubled which is located outside said cabinet. To do this, the evacuation duct 920 is passed through an external duct 94 whose end is screwed onto the threaded end of the duct 93. The outlet fitting 92 is thus totally secured, nor the evacuation duct 920, neither the external duct 94 being accidentally disconnected from the cabinet 1. The constituent material of the external duct 94 may be steel, stainless steel, plastic, or any other material suitable for use by the man job.

Une solution similaire est utilisée afin de sécuriser le raccord d'entrée 91, c'est-à-dire que :

  • le conduit d'arrivée 910 traverse la paroi de l'armoire 1 pour se connecter à l'entrée du circuit hydraulique 2 qui est disposée à l'intérieur de ladite armoire,
  • l'ouverture réalisée dans la paroi de l'armoire 1 est obturée par un passe-paroi sur lequel est connecté un conduit externe 95,
  • le conduit externe 95 est disposé de façon à doubler la paroi du conduit d'arrivée 910 qui est située à l'extérieur de l'armoire 1.
A similar solution is used to secure the inlet fitting 91, i.e.
  • the inlet duct 910 passes through the wall of the cabinet 1 to connect to the inlet of the hydraulic circuit 2 which is disposed inside said cabinet,
  • the opening made in the wall of the cabinet 1 is closed by a wall-pass on which is connected an external conduit 95,
  • the external duct 95 is arranged so as to double the wall of the inlet duct 910 which is located outside the cabinet 1.

Claims (13)

  1. Dispensing or transfer pump device comprising a hollow, rigid, protective cabinet (1) inside which at least one hydraulic circuit (2) is positioned associated with a dispensing or transfer pump (3), the inside of the said cabinet being accessible through at least one door (4) placed on its front face, being characterized in that the hydraulic circuit (2) and the pump (3) are mounted on a removable supporting plate (5) designed to be attached inside the cabinet (1), against the back wall of the latter and in that the supporting plate (5) comprises means (50) for adjusting the vertical position and the horizontal position of the pump (3) inside the said cabinet.
  2. Device according to Claim 1, in which the back wall of the cabinet (1) is provided with elements in relief (7) ensuring the positioning of the supporting plate (5) against the said back wall.
  3. Device according to one of the preceding claims, in which the pump (3) is placed on a supporting element (6) designed to be attached against the supporting plate (5), the said plate comprising at least two horizontal grooves (50) positioned one above the other and designed to receive the said supporting element.
  4. Device according to one of the preceding claims, in which a hydraulic circuit (2) associated with several pumps (3) is positioned inside the cabinet, each pump and its associated circuit portion being mounted on an independent, removable supporting plate.
  5. Device according to one of the preceding claims, in which the cabinet (1) is made in a single piece out of moulded plastic.
  6. Device according to one of the preceding claims, in which a retention tray (11) for the drips originating from the hydraulic circuit (2) and/or from the pump (3) is integrated at the bottom of the cabinet (1).
  7. Device according to Claim 6, in which the cabinet (1) includes a visual and/or audible alarm (12) connected to a level sensor arranged in the retention tray (11), the said alarm being triggered when a maximum level of drips is reached in the said tray.
  8. Device according to one of the preceding claims, in which the lateral walls of the cabinet (1) comprise, respectively at the top and at the bottom, portions of lesser thickness (14) designed to be cut out and/or pierced so as to form natural aeration inside the said cabinet.
  9. Device according to one of the preceding claims, in which the inside of the cabinet (1) can be accessed via one or more doors (4) made in a single piece out of moulded plastic, at least one of the said doors comprising at least one opening leading to the inside of the structure and in which a personal protective equipment compartment (40) is attached.
  10. Device according to one of the preceding claims, in which the lateral walls of the cabinet (1) are provided with at least one aperture (13) leading into the said cabinet, the said aperture being closed off by a transparent plate.
  11. Device according to one of the preceding claims, in which the walls of the cabinet (1) are fitted:
    - with an inlet connector (91) making it possible to connect the inlet of the hydraulic circuit (2) to an inlet duct (910) of the liquid to be dispensed,
    - with an outlet connector (92) making it possible to connect the outlet of the hydraulic circuit (2) to a discharge duct (920) of the dispensed liquid.
  12. Device according to Claim 11, in which:
    - the discharge duct (920) passes through the wall of the cabinet (1) in order to be connected to the outlet of the hydraulic circuit (2) that is placed inside the said cabinet,
    - the aperture made in the wall of the cabinet (1) is closed off by a through-wall fitting (93, 930, 931) to which an external duct (94) is connected,
    - the external duct (94) is placed so as to cover the wall of the discharge duct (920) that is situated outside the cabinet (1).
  13. Device according to one of Claims 11 and 12, in which:
    - the inlet duct (910) passes through the wall of the cabinet (1) in order to be connected to the inlet of the hydraulic circuit (2) that is placed inside the said cabinet,
    - the aperture made in the wall of the cabinet (1) is closed off by a through-wall fitting to which an external duct (95) is connected,
    - the external duct (95) is placed so as to cover the wall of the inlet duct (910) that is situated outside the cabinet (1).
EP20100290258 2010-05-14 2010-05-14 Protection device for a dispensing or transfer pump Not-in-force EP2386760B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100290258 EP2386760B1 (en) 2010-05-14 2010-05-14 Protection device for a dispensing or transfer pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100290258 EP2386760B1 (en) 2010-05-14 2010-05-14 Protection device for a dispensing or transfer pump

Publications (2)

Publication Number Publication Date
EP2386760A1 EP2386760A1 (en) 2011-11-16
EP2386760B1 true EP2386760B1 (en) 2012-12-05

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EP20100290258 Not-in-force EP2386760B1 (en) 2010-05-14 2010-05-14 Protection device for a dispensing or transfer pump

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CN108557750A (en) * 2018-04-24 2018-09-21 杭州鼎升机械有限公司 With the outer integral type charging machine for surrounding mechanism

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US20050127096A1 (en) * 2003-08-08 2005-06-16 Pakers Chemical, Inc. Apparatus for dispensing hazardous chemicals

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