EP2050967B1 - Submersible pump - Google Patents

Submersible pump Download PDF

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Publication number
EP2050967B1
EP2050967B1 EP08166737A EP08166737A EP2050967B1 EP 2050967 B1 EP2050967 B1 EP 2050967B1 EP 08166737 A EP08166737 A EP 08166737A EP 08166737 A EP08166737 A EP 08166737A EP 2050967 B1 EP2050967 B1 EP 2050967B1
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EP
European Patent Office
Prior art keywords
pump
plate
liquid
enclosure
cavity
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.)
Active
Application number
EP08166737A
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German (de)
French (fr)
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EP2050967A1 (en
Inventor
Patrick Ballu
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Exel Industries SA
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Exel Industries SA
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Publication of EP2050967A1 publication Critical patent/EP2050967A1/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps

Definitions

  • the present invention relates to a submersible pump, for discharging liquids loaded solid particles or clear liquids, that is to say, little or no solid particles loaded.
  • a submersible pump for discharging a liquid laden with solid particles is generally intended to evacuate the particles out of the volume to be treated.
  • the solid particles to be discharged may have a generally spherical shape whose diameter may reach 30 mm.
  • the pump is immersed in the volume to be treated.
  • the submerged pump discharges the liquid with the particles it contains.
  • Such a pump also allows to evacuate a clear liquid.
  • the height of residual liquid in the volume to be dried is relatively high, since the level of the inlet of the pump with respect to the ground must be greater than the maximum size of the particles to be evacuated.
  • a submersible pump for discharging a clear liquid has a submerged inlet port closer to the ground than that of a pump for charged liquid, which reduces the height of residual liquid in the volume to dry.
  • a pump for clear liquid does not allow to evacuate solid particles of significant size.
  • a submersible pump of the prior art is generally dedicated either to the evacuation of a liquid laden with solid particles, or to the almost complete evacuation of a clear liquid, but not to these two uses.
  • the document DE 10 2005 031420 A1 describes a submersible pump with an adjustable device for configuring this pump either for the evacuation of a liquid laden with solid particles, or for the almost complete evacuation of a clear liquid.
  • This pump therefore allows the user to perform both types of evacuation.
  • This pump however, has the disadvantage of achieving the said convertibility using a bayonet system that can play and deteriorate.
  • the present invention aims to remedy these drawbacks by also proposing a submersible and reversible pump for discharging charged liquids or clear liquids.
  • a wall of the enclosure is defined by a base having at least one inlet communicating with the outside of the enclosure, and the pump comprises a plate adapted to be mounted reversibly close to the base in two distinct configurations, a first mounting configuration being intended for the passage of a liquid laden with solid particles, the other mounting configuration being intended for the passage of a clear liquid, the enclosure having a clear volume between the inlet orifice and the outlet nozzle, so as to allow the flow of the liquid laden with solid particles.
  • the plate has at least a first opening and the plate is able to form with the base at least a first cavity, the dimensions of the or each first opening and the or each first cavity being adapted to the passage of the charged liquid. solid particles.
  • the plate has at least a second opening and the plate is adapted to form with the base at least a second cavity, the dimensions of the or each second opening and the or each second cavity being adapted to the passage of the clear liquid.
  • the pump which is the subject of the invention therefore makes it possible, on the one hand, to discharge a liquid loaded with particles of significant size and, on the other hand, to minimize the height of residual liquid in a volume to be dried.
  • the conversion of the pump between its two configurations is achieved by simple operations.
  • the figure 1 illustrates a submersible pump P formed by a high half-housing 1 and a low half-housing 2.
  • the half-housing 1 serves to protect the electrical components and the gripping of the pump P by means of a handle 15.
  • the half-housing 2 comprises an enclosure 21 intended to contain the liquid to be discharged.
  • the top and bottom half-casings 2 are formed by solid walls, so as to make the chamber 21 impervious to liquids to be evacuated.
  • the enclosure 21 may be partially or totally immersed in a liquid.
  • the terms up, down, up and down refer to the service position of the pump, as illustrated by the Figures 1 and 2 .
  • the pump P comprises a base 3 and a plate 4 at which the liquid to be discharged is sucked.
  • the pump P rests on the base 3 and on the plate 4.
  • the plate 4 is housed in the free volume inside the base 3, if although the plate is not visible on the figure 1 in front view, but is on the figure 3 .
  • the pump P rests solely on the plate 4 which forms a projection under the base 3.
  • the upper half-housing 1 is equipped with an outlet nozzle 13 through which the liquid L may be discharged.
  • a pipe 14 may be connected to this endpiece 13 in order to convey the liquid L away from the site to be treated.
  • the tip 13 is disposed on the upper face of the half-case 1. According to a variant not shown, the tip 13 may be attached to a side face of the pump P.
  • the enclosure 21 is equipped with cable glands 10 and 11 for respectively receiving a power supply cable 7 of the pump P and a not shown control cable of the pump P.
  • the base 3 is affixed to the bottom of the lower half-housing 2.
  • the enclosure 21 defines a main volume 20, in which is housed an electric motor 22 supplied by the cable 7.
  • the motor 22 comprises a rotary output shaft 225 and extending along an axis Z 22 .
  • Z axis 22 is vertical on the figure 2 and when the pump P rests on a horizontal ground.
  • a vane wheel 5 is secured to the output shaft 225 via a not shown nut.
  • the impeller 5 rotates about the Z axis 22 when the output shaft 225 is rotated by the motor 22.
  • the impeller 5 is centrifugal type here and it allows to set in motion the liquid to be evacuated according to flow lines symbolized by the arrows L to Figures 3 and 4 .
  • the plate 4 is able to be mounted reversibly on the base 3.
  • the mounting configuration illustrated by the figure 4 is intended for the passage of a liquid loaded with solid particles, while the other mounting configuration, illustrated by the figure 3 , is intended for the passage of a clear liquid.
  • the main difference between the pump P configurations to evacuate a loaded liquid or a clear liquid resides in the dimensions of the respective flow sections delimited by the geometry of each face of the plate 4.
  • the plate 4 comprises a generally elliptical central plate 40 having a first face 41 and a second face 42 generally flat and parallel to each other.
  • the plate 40 is pierced with four holes 43, two of which are visible in section at the figure 8 , intended for the passage of a clear liquid or a charged liquid. This is why each of the holes 43 has a circular shape with a diameter D 43 greater than the maximum particle size to be evacuated.
  • Six feet 45 extend from the second face 42 around the plate 40 and perpendicular thereto.
  • the flanges 451 of the six feet 45 which extend substantially parallel to the plate 40, are coplanar and allow the pump P to rest stably on a flat floor in the configuration of the figures 2 and 4 .
  • Holes 452 are made on the flanges 451 to connect the inner recess of each foot 45 outside the pump P, which allows the flow of liquid from the feet 45 and thus prevents stagnation of the liquid.
  • the six feet 45 define between them, two by two, six notches 47 similar each having a width L 47 and a height H 47 .
  • Each notch 47 defines a first opening limiting the size of the particles that can be sucked when pumping a liquid loaded into the configuration of the particles. figures 2 and 4 .
  • the pump P is configured to evacuate a charged liquid.
  • the plate 4 comprises abutments 46 which extend above the first face 41 and which are separated in pairs by recesses 48.
  • the outer surfaces of the stops 46 define coplanar soles 461, so that they allow at the pump P to rest stably on a flat floor.
  • the plate 4 coincides perfectly with the plane defined by flanges 361 of abutments 36 belonging to the base 3.
  • Each recess 48 has an elongated curvilinear shape and a low height H 48 in front of the height H 47 .
  • the height H 48 strongly limits the size solid particles which can be sucked up during the pumping in the configuration of the figures 1 and 3 .
  • the recesses 48 of the plate 4 coincide with recesses 38 of the base 3, which avoids generating a flow restriction at the liquid passage, while maximizing the bearing surface of the pump P On the ground.
  • the pump P is configured to discharge a clear liquid or, at least, a liquid loaded with particles having a size smaller than the height H 48 .
  • the feet 45 and the abutments 46 project on either side of the plate 40, the latter is able to form with the base 3 a first cavity 31, visible at the figure 4 , and a second cavity 32, visible at the figure 3 .
  • the plate 40 is common to the first 31 and second 32 cavities.
  • the first cavity 31 is higher than the second cavity 32, and higher than the maximum size of the particles to be discharged.
  • the base 3 is substantially composed of two bells, high 30 and low 39, nested one inside the other.
  • the wall of the lower bell 39 defines a cylindrical housing with an elliptical base intended to receive the plate 4.
  • the shape of the upper bell 30 consists essentially of the juxtaposition of a cylinder with a circular base and a prism with a base triangular axes parallel to each other and to the axis of the lower bell 39.
  • the cylindrical portion of the bell 30 is intended to receive the impeller 5, as shown by the Figures 3 and 4 while the prismatic portion of the bell 30 forms an open volume 23 which allows the flow of a liquid L, possibly charged with relatively large particles.
  • the upper contours of the low bells 39 and 30 each have a ring 35 for positioning the bottom half-housing 2 on the base 3.
  • the connection thus formed is completed by a not shown joint disposed in a groove 351 of the ring 35, so as to make this connection tight to the liquid to be discharged.
  • the base 3 comprises a flat partition 37 which separates the volumes defined by the bells 30 and 39.
  • the partition 37 has an inlet orifice 33, through which the liquid L sucked can penetrate into the enclosure 21.
  • the orifice entry 33 presents here a circular shape of diameter D 33 greater than the maximum size of the particles to be evacuated.
  • the inlet orifice 33 is in line with the Z axis 22 and the four holes 43 formed in the plate 40 are distributed symmetrically with respect to the Z axis 22 .
  • the location of the holes 43 is defined so as to avoid direct access by the user to the impeller 5, when the pump P is in working order. This secures the pump P and preserve the wheel 5 and the motor 22. In this case, none of the holes 43 faces the inlet port 33 of the pump P.
  • the orifice 33 communicates the enclosure 21 with the first cavity 31 or with the second cavity 32, respectively, depending on whether the pump P is configured for a charged liquid or for a clear liquid.
  • ribs 391 are arranged at regular intervals around the perimeter of the inner wall of the lower bell 39.
  • the ribs 391 each have a flat rectangular shape arranged with their upper edge integral with the inner wall of the lower bell 39.
  • the lower edge 392 of the ribs 391, that is to say the edge opposite the upper bell 30, serves as a stop means for positioning the plate 40, and therefore the plate 4, with respect to the base 3, which allows to form the first cavity 31 or the second cavity 32 and to match the respective planes of the flanges 361 and 461 in the configuration for clear liquids.
  • the ribs 391 act as spacers between the inlet orifice 33 and the plate 4. The position of each set of ribs 391 is defined so that the ribs 391 fit into the notches 47 when the plate 4 is mounted in configuration for clear liquid.
  • the chamber 21, including the volume defined by the upper bell 30 of the base 3, has a volume 23 clear of any obstacle between the inlet port 33 and the outlet nozzle 13. This is essentially through volume 23 flowing liquids L to evacuate.
  • Circulation of the particles in the pump P must not be impeded by any obstacle, since it is desired to evacuate them through the pipe 14. This is why the respective flow sections of the first cavity 31, of the inlet orifice 33 and 23 each have a minimum dimension greater than the maximum size of the particles to be evacuated.
  • the pump P is intended to treat the consequences of flooding and river overflow, so that it is sized to discharge water loaded with pebbles up to 30 mm in their largest dimension.
  • the minimum dimension of the flow sections mentioned above may be greater than 32 mm.
  • the impeller 5 and the motor 22 are sized to pump a liquid thus charged.
  • the diameter D 43 of the holes 43 is greater than 30 mm.
  • the width L 47 and the height H 47 of the notches 47 are provided slightly greater than the maximum size of the particles to be discharged but slightly smaller than the dimensions of the flow sections downstream.
  • the notches 47 thus fulfill the function of sieves by preventing too large particles from entering the pump P, where they might become trapped. In addition, once the notches are crossed, the particles are guaranteed to be evacuated.
  • the impeller 5 is made of a fiber-filled polymer capable of withstanding abrasion and shocks by particles, such as pebbles, carried by the liquid to be discharged. Other parts likely to come into contact with these particles may also be made of fiber-filled polymer.
  • the plate 4 is fixed on the base 3 by means of fastening elements which here consist of two screws 6 screwed through holes 44 of the plate 4 and into threads formed in two fastening sleeves 34 integral with the 3.
  • the screws 6 are arranged to be accessible from the outside of the enclosure 21 and the pump P.
  • the user can quickly dismantle the plate 4, turn it over, then reassemble it on the base 3, to change the configuration of the pump P.
  • the first face 41 and the second face 42 each comprise information 49 on the mounting configuration of the plate 4, to guide the user during assembly and / or disassembly of the pump P.
  • This information 49 respectively " clear water “and” charged water “correspond to the nature of the liquid L to be discharged and must be visible under the pump.
  • faces 41 and 42 also include information, not shown, explaining the maneuvers to operate to change configuration.
  • the pump object of the invention thus allows to evacuate either a clear liquid or a charged liquid, the conversion between these two uses being particularly simple to operate.
  • the user is not obliged to choose the type of pump to buy, nor to buy both types of pump.
  • the invention also has the advantage of increasing the series of production, thus of reducing the unit costs, since all the parts of a pump according to the invention are common to the two uses of such a pump, to know to evacuate a clear liquid or a loaded liquid.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The pump has an enclosure with a plane wall (37) defined by a base (3) presenting an inlet orifice (33) communicating with exterior of the enclosure. A plate (4) is mounted at proximity of the base in a reversible manner, in distinct mounting configurations, where the configurations are intended for passage of liquid (L) such as liquid charged of solid particle and clean liquid, respectively. The plate and the base form cavities, where the plate presents openings. The dimension of the openings and the cavities are adapted to the passage of the charged liquid and the clean liquid, respectively.

Description

La présente invention concerne une pompe submersible, pour évacuer des liquides chargés de particules solides ou des liquides clairs, c'est-à-dire peu ou pas chargés de particules solides.The present invention relates to a submersible pump, for discharging liquids loaded solid particles or clear liquids, that is to say, little or no solid particles loaded.

Une pompe submersible pour évacuer un liquide chargé de particules solides est généralement destinée à évacuer les particules hors du volume à traiter. Les particules solides à évacuer peuvent présenter une forme globalement sphérique dont le diamètre peut atteindre 30 mm. Pour les évacuer, on immerge la pompe dans le volume à traiter. La pompe immergée évacue le liquide avec les particules qu'il contient. Une telle pompe permet donc aussi d'évacuer un liquide clair.A submersible pump for discharging a liquid laden with solid particles is generally intended to evacuate the particles out of the volume to be treated. The solid particles to be discharged may have a generally spherical shape whose diameter may reach 30 mm. To evacuate them, the pump is immersed in the volume to be treated. The submerged pump discharges the liquid with the particles it contains. Such a pump also allows to evacuate a clear liquid.

Cependant, après l'évacuation des particules et du liquide par une pompe pour liquide chargé, la hauteur de liquide résiduel dans le volume à assécher est relativement importante, car le niveau de l'orifice d'entrée de la pompe par rapport au sol doit être supérieur à la taille maximale des particules à évacuer.However, after the particles and the liquid are discharged by a pump for charged liquid, the height of residual liquid in the volume to be dried is relatively high, since the level of the inlet of the pump with respect to the ground must be greater than the maximum size of the particles to be evacuated.

Inversement, une pompe submersible pour évacuer un liquide clair présente un orifice d'entrée immergé plus près du sol que celui d'une pompe pour liquide chargé, ce qui permet de réduire la hauteur de liquide résiduel dans le volume à assécher. Toutefois, une pompe pour liquide clair ne permet pas d'évacuer des particules solides de taille significative.Conversely, a submersible pump for discharging a clear liquid has a submerged inlet port closer to the ground than that of a pump for charged liquid, which reduces the height of residual liquid in the volume to dry. However, a pump for clear liquid does not allow to evacuate solid particles of significant size.

En fonction de ses caractéristiques structurelles, une pompe submersible de l'art antérieur est en général dédiée soit à l'évacuation d'un liquide chargé de particules solides, soit à l'évacuation quasi-complète d'un liquide clair, mais pas à ces deux utilisations.According to its structural characteristics, a submersible pump of the prior art is generally dedicated either to the evacuation of a liquid laden with solid particles, or to the almost complete evacuation of a clear liquid, but not to these two uses.

Le document DE 10 2005 031420 A1 décrit une pompe submersible dotée d'un dispositif réglable permettant de configurer cette pompe soit pour l'évacuation d'un liquide chargé de particules solides, soit pour l'évacuation quasi-complète d'un liquide clair. Cette pompe permet donc à l'utilisateur de réaliser les deux types d'évacuation. Cette pompe présente cependant l'inconvénient de réaliser la dite convertibilité à l'aide d'un système à baïonnette qui peut prendre du jeu et se détériorer.The document DE 10 2005 031420 A1 describes a submersible pump with an adjustable device for configuring this pump either for the evacuation of a liquid laden with solid particles, or for the almost complete evacuation of a clear liquid. This pump therefore allows the user to perform both types of evacuation. This pump, however, has the disadvantage of achieving the said convertibility using a bayonet system that can play and deteriorate.

La présente invention vise à remédier à ces inconvénients, en proposant également une pompe submersible et réversible pour évacuer des liquides chargés ou des liquides clairs.The present invention aims to remedy these drawbacks by also proposing a submersible and reversible pump for discharging charged liquids or clear liquids.

A cet effet, l'invention concerne une pompe submersible, pour évacuer des liquides, comprenant:

  • une enceinte présentant au moins un embout de sortie de liquide communiquant avec l'extérieur de l'enceinte,
  • un actionneur électrique à arbre de sortie rotatif,
  • une roue à aubes disposée dans l'enceinte, entraînée par l'actionneur et apte à tourner autour de l'axe de l'arbre de sortie.
For this purpose, the invention relates to a submersible pump, for discharging liquids, comprising:
  • an enclosure having at least one liquid outlet nozzle communicating with the outside of the enclosure,
  • an electric actuator with rotary output shaft,
  • a paddle wheel disposed in the chamber, driven by the actuator and rotatable about the axis of the output shaft.

Selon l'invention, une paroi de l'enceinte est définie par une embase présentant au moins un orifice d'entrée communiquant avec l'extérieur de l'enceinte, et la pompe comporte une plaque apte à être montée de manière réversible à proximité de l'embase selon deux configurations distinctes, une première configuration de montage étant destinée au passage d'un liquide chargé de particules solides, l'autre configuration de montage étant destinée au passage d'un liquide clair, l'enceinte présentant un volume dégagé entre l'orifice d'entrée et l'embout de sortie, de façon à permettre l'écoulement du liquide chargé de particules solides.According to the invention, a wall of the enclosure is defined by a base having at least one inlet communicating with the outside of the enclosure, and the pump comprises a plate adapted to be mounted reversibly close to the base in two distinct configurations, a first mounting configuration being intended for the passage of a liquid laden with solid particles, the other mounting configuration being intended for the passage of a clear liquid, the enclosure having a clear volume between the inlet orifice and the outlet nozzle, so as to allow the flow of the liquid laden with solid particles.

De plus, la plaque présente au moins une première ouverture et la plaque est apte à former avec l'embase au moins une première cavité, les dimensions de la ou chaque première ouverture et de la ou chaque première cavité étant adaptées au passage du liquide chargé de particules solides. La plaque présente au moins une deuxième ouverture et la plaque est apte à former avec l'embase au moins une deuxième cavité, les dimensions de la ou de chaque deuxième ouverture et de la ou de chaque deuxième cavité étant adaptées au passage du liquide clair.In addition, the plate has at least a first opening and the plate is able to form with the base at least a first cavity, the dimensions of the or each first opening and the or each first cavity being adapted to the passage of the charged liquid. solid particles. The plate has at least a second opening and the plate is adapted to form with the base at least a second cavity, the dimensions of the or each second opening and the or each second cavity being adapted to the passage of the clear liquid.

La pompe objet de l'invention permet donc, d'une part, d'évacuer un liquide chargé de particules de taille significative et, d'autre part, de minimiser la hauteur de liquide résiduel dans un volume à assécher. La conversion de la pompe entre ses deux configurations est réalisée par des opérations simples.The pump which is the subject of the invention therefore makes it possible, on the one hand, to discharge a liquid loaded with particles of significant size and, on the other hand, to minimize the height of residual liquid in a volume to be dried. The conversion of the pump between its two configurations is achieved by simple operations.

Selon des caractéristiques avantageuses mais facultatives, prises isolément ou selon toute combinaison techniquement possible :

  • la plaque présente une partie commune aux première et deuxième cavités, ladite partie commune étant percée d'au moins un trou pour le passage dé liquide chargé ou clair;
  • des moyens de butée sont prévus sur l'embase et/ou sur la plaque pour positionner la plaque par rapport à l'embase, de façon à former la première cavité ou la deuxième cavité ;
  • la paroi définit le fond de l'enceinte et l'embout de sortie se trouve sur la partie supérieure de l'enceinte, lorsque la pompe est en position d'utilisation ;
  • l'axe de l'arbre de sortie est vertical lorsque la pompe est en position d'utilisation, et la roue à aubes comporte des aubes à action centrifuge ;
  • l'orifice d'entrée se trouve au droit de l'axe de l'arbre de sortie et la plaque présente plusieurs trous répartis pour le passage de liquide, les trous étant disposés de façon symétrique par rapport à l'axe de l'arbre de sortie ;
  • les sections débitantes respectives de la première cavité, de l'orifice d'entrée et du volume présentent chacune une dimension minimale supérieure à 30 mm ;
  • les dimensions de la ou de chaque première ouverture sont inférieures aux dimensions des sections débitantes respectives de la première cavité, de l'orifice d'entrée et du volume, de façon à éviter le coincement dans la pompe des particules solides à évacuer ;
  • la plaque comporte au moins une information sur sa configuration de montage, de préférence sur l'une et ou sur l'autre de ses faces, selon la nature du liquide à évacuer ;
  • la plaque est fixée sur l'embase au moyen d'éléments de fixation accessibles depuis l'extérieur de l'enceinte ;
  • au moins une face de la plaque présente une surface d'appui plane destinée à supporter la pompe de manière stable sur un sol plan.
According to advantageous but optional characteristics, taken separately or in any technically possible combination:
  • the plate has a portion common to the first and second cavities, said common portion being pierced with at least one hole for the passage of charged or clear liquid;
  • stop means are provided on the base and / or on the plate for positioning the plate relative to the base, so as to form the first cavity or the second cavity;
  • the wall defines the bottom of the enclosure and the outlet tip is on the upper part of the enclosure, when the pump is in the use position;
  • the axis of the output shaft is vertical when the pump is in the use position, and the impeller comprises centrifugal blades;
  • the inlet orifice is located at the axis of the output shaft and the plate has several holes distributed for the passage of liquid, the holes being arranged symmetrically with respect to the axis of the shaft Release ;
  • the respective flow sections of the first cavity, the inlet and the volume each have a minimum dimension greater than 30 mm;
  • the dimensions of the or each first opening are smaller than the dimensions of the respective flow sections of the first cavity, the inlet orifice and the volume, so as to avoid the jamming in the pump of the solid particles to be evacuated;
  • the plate comprises at least one information on its mounting configuration, preferably on one or the other of its faces, depending on the nature of the liquid to be discharged;
  • the plate is fixed on the base by means of fasteners accessible from outside the enclosure;
  • at least one side of the plate has a flat bearing surface for stably supporting the pump on a flat floor.

L'invention sera bien comprise et d'autres avantages de celle-ci apparaîtront aussi à la lumière de la description qui va suivre d'un mode de réalisation de l'invention et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue de face d'une pompe conforme à l'invention configurée pour évacuer un liquide clair ;
  • la figure 2 est une vue de face de la pompe de la figure 1 configurée pour évacuer un liquide chargé ;
  • la figure 3 est une coupe à plus grande échelle de la partie basse de la pompe de la figure 1 ;
  • la figure 4 est une coupe analogue à la figure 3, de la partie basse de la pompe de la figure 2 ;
  • la figure 5 est une vue en perspective et à plus grande échelle de la plaque de la pompe des figures 1 à 4 ;
  • la figure 6 est une vue en perspective de la plaque de la figure 5 sous un angle différent ;
  • la figure 7 est une coupe, selon le plan VII à la figure 5, de la plaque des figures 5 et 6 ;
  • la figure 8 est une coupe, à plus petite échelle et selon le plan VIII de la figure 5, de la plaque de la figure 5 ;
  • la figure 9 est une vue en perspective de l'embase de la pompe des figures 1 à 4, à plus grande échelle et sous l'angle de la figure 5 ;
  • la figure 10 est une vue en perspective de l'embase de la figure 9 sous l'angle de la figure 6 ;
  • la figure 11 est une coupe de l'embase des figures 9 et 10 selon le plan XI à la figure 9.
The invention will be well understood and other advantages thereof will also become apparent in the light of the following description of an embodiment of the invention and with reference to the accompanying drawings in which:
  • the figure 1 is a front view of a pump according to the invention configured to evacuate a clear liquid;
  • the figure 2 is a front view of the pump the figure 1 configured to discharge a loaded liquid;
  • the figure 3 is a larger scale section of the lower part of the pump the figure 1 ;
  • the figure 4 is a cut similar to the figure 3 , from the lower part of the pump to the figure 2 ;
  • the figure 5 is a perspective view and on a larger scale of the pump plate of the Figures 1 to 4 ;
  • the figure 6 is a perspective view of the plate from the figure 5 from a different angle;
  • the figure 7 is a cut, according to plan VII at the figure 5 , from the plate Figures 5 and 6 ;
  • the figure 8 is a section, on a smaller scale and according to plan VIII of the figure 5 , from the plate of the figure 5 ;
  • the figure 9 is a perspective view of the pump base of the Figures 1 to 4 , on a larger scale and in terms of figure 5 ;
  • the figure 10 is a perspective view of the base of the figure 9 from the angle of figure 6 ;
  • the figure 11 is a section of the base of Figures 9 and 10 according to plan XI at the figure 9 .

La figure 1 illustre une pompe submersible P formée par un demi-boîtier haut 1 et un demi-boîtier bas 2. Le demi-boîtier 1 sert à protéger les composants électriques et à la préhension de la pompe P par l'intermédiaire d'une poignée 15. Le demi-boîtier 2 comprend une enceinte 21 destinée à contenir le liquide à évacuer. Les demi-boîtiers haut 1 et bas 2 sont formés par des parois pleines, de façon à rendre l'enceinte 21 étanche aux liquides à évacuer. L'enceinte 21 peut être partiellement ou totalement immergée dans un liquide. Les termes haut, bas, supérieur et inférieur se rapportent à la position de service de la pompe, telle qu'illustrée par les figures 1 et 2.The figure 1 illustrates a submersible pump P formed by a high half-housing 1 and a low half-housing 2. The half-housing 1 serves to protect the electrical components and the gripping of the pump P by means of a handle 15. The half-housing 2 comprises an enclosure 21 intended to contain the liquid to be discharged. The top and bottom half-casings 2 are formed by solid walls, so as to make the chamber 21 impervious to liquids to be evacuated. The enclosure 21 may be partially or totally immersed in a liquid. The terms up, down, up and down refer to the service position of the pump, as illustrated by the Figures 1 and 2 .

La pompe P comprend une embase 3 et une plaque 4 au niveau desquelles est aspiré le liquide à évacuer. Dans la configuration illustrée par la figure 1, pour l'évacuation d'un liquide clair, la pompe P repose sur l'embase 3 et sur la plaque 4. Dans cette configuration, la plaque 4 est logée dans le volume libre à l'intérieur de l'embase 3, si bien que la plaque n'est pas visible sur la figure 1 en vue de face, mais l'est sur la figure 3. Dans la configuration illustrée par la figure 2, pour l'évacuation d'un liquide chargé de particules solides, la pompe P repose uniquement sur la plaque 4 qui forme une saillie sous l'embase 3.The pump P comprises a base 3 and a plate 4 at which the liquid to be discharged is sucked. In the configuration illustrated by the figure 1 for the evacuation of a clear liquid, the pump P rests on the base 3 and on the plate 4. In this configuration, the plate 4 is housed in the free volume inside the base 3, if although the plate is not visible on the figure 1 in front view, but is on the figure 3 . In the configuration illustrated by the figure 2 , for the evacuation of a liquid loaded with solid particles, the pump P rests solely on the plate 4 which forms a projection under the base 3.

Le demi-boîtier haut 1 est équipé d'un embout de sortie 13 par lequel peut être évacué le liquide L. Un tuyau 14 peut être connecté sur cet embout 13 afin d'acheminer le liquide L à distance du site à traiter. Dans l'exemple des figures 1 et 2, l'embout 13 est disposé sur la face supérieure du demi-boîtier 1. Selon une variante non représentée, l'embout 13 peut être rapporté sur une face latérale de la pompe P.The upper half-housing 1 is equipped with an outlet nozzle 13 through which the liquid L may be discharged. A pipe 14 may be connected to this endpiece 13 in order to convey the liquid L away from the site to be treated. In the example of Figures 1 and 2 , the tip 13 is disposed on the upper face of the half-case 1. According to a variant not shown, the tip 13 may be attached to a side face of the pump P.

Par ailleurs, l'enceinte 21 est équipée de presse-étoupes 10 et 11 destinés à recevoir respectivement un câble 7 d'alimentation électrique en puissance de la pompe P et un câble non représenté de commande de la pompe P.Furthermore, the enclosure 21 is equipped with cable glands 10 and 11 for respectively receiving a power supply cable 7 of the pump P and a not shown control cable of the pump P.

Comme le montre la figure 3, l'embase 3 est apposée au fond du demi-boîtier bas 2. L'enceinte 21 définit un volume principal 20, dans lequel est logé un moteur électrique 22 alimenté par le câble 7. Le moteur 22 comporte un arbre de sortie 225 rotatif et s'étendant selon un axe Z22. L'axe Z22 est vertical sur la figure 2 et lorsque la pompe P repose sur un sol horizontal.As shown in figure 3 , the base 3 is affixed to the bottom of the lower half-housing 2. The enclosure 21 defines a main volume 20, in which is housed an electric motor 22 supplied by the cable 7. The motor 22 comprises a rotary output shaft 225 and extending along an axis Z 22 . Z axis 22 is vertical on the figure 2 and when the pump P rests on a horizontal ground.

Une roue à aubes 5 est solidarisée à l'arbre de sortie 225 par l'intermédiaire d'un écrou non représenté. La roue à aubes 5 tourne autour de l'axe Z22 lorsque l'arbre de sortie 225 est entraîné en rotation par le moteur 22. La roue à aubes 5 est ici de type centrifuge et elle permet de mettre en mouvement le liquide à évacuer selon des lignes de flux symbolisés par les flèches L aux figures 3 et 4.A vane wheel 5 is secured to the output shaft 225 via a not shown nut. The impeller 5 rotates about the Z axis 22 when the output shaft 225 is rotated by the motor 22. The impeller 5 is centrifugal type here and it allows to set in motion the liquid to be evacuated according to flow lines symbolized by the arrows L to Figures 3 and 4 .

Quelle que soit la nature du liquide L, chargé ou clair, son écoulement se fait depuis le bas de la pompe P, où il est aspiré au niveau de la plaque 4 et de l'embase 3, jusqu'en haut de la pompe P, où il est évacué à travers l'embout 13. L'embout 13 met donc en communication l'enceinte 21 avec l'extérieur de l'enceinte 21.Whatever the nature of the liquid L, charged or clear, its flow is from the bottom of the pump P, where it is sucked at the plate 4 and the base 3, to the top of the pump P , where it is discharged through the nozzle 13. The tip 13 thus communicates the enclosure 21 with the outside of the enclosure 21.

Comme le montre la comparaison entre les figures 3 et 4, la plaque 4 est apte à être montée de manière réversible sur l'embase 3. La configuration de montage illustrée par la figure 4 est destinée au passage d'un liquide chargé de particules solides, tandis que l'autre configuration de montage, illustrée par la figure 3, est destinée au passage d'un liquide clair. La principale différence entre les configurations de la pompe P pour évacuer un liquide chargé ou un liquide clair réside dans les dimensions des sections débitantes respectives délimitées par la géométrie de chaque face de la plaque 4.As the comparison between the Figures 3 and 4 , the plate 4 is able to be mounted reversibly on the base 3. The mounting configuration illustrated by the figure 4 is intended for the passage of a liquid loaded with solid particles, while the other mounting configuration, illustrated by the figure 3 , is intended for the passage of a clear liquid. The main difference between the pump P configurations to evacuate a loaded liquid or a clear liquid resides in the dimensions of the respective flow sections delimited by the geometry of each face of the plate 4.

Comme le montrent les figures 5 à 8, la plaque 4 comprend un plateau central 40 globalement elliptique présentant une première face 41 et une deuxième face 42 globalement planes et parallèles entre elles. Le plateau 40 est percé de quatre trous 43, dont deux sont visibles en coupe à la figure 8, destinés au passage d'un liquide clair ou d'un liquide chargé. C'est pourquoi chacun des trous 43 présente une forme circulaire de diamètre D43 supérieur à la taille maximale des particules à évacuer.As shown by Figures 5 to 8 , the plate 4 comprises a generally elliptical central plate 40 having a first face 41 and a second face 42 generally flat and parallel to each other. The plate 40 is pierced with four holes 43, two of which are visible in section at the figure 8 , intended for the passage of a clear liquid or a charged liquid. This is why each of the holes 43 has a circular shape with a diameter D 43 greater than the maximum particle size to be evacuated.

Six pieds 45 s'étendent depuis la deuxième face 42 autour du plateau 40 et perpendiculairement à celui-ci. Les semelles 451 des six pieds 45, qui s'étendent sensiblement parallèlement au plateau 40, sont coplanaires et elles permettent à la pompe P de reposer de manière stable sur un sol plan dans la configuration des figures 2 et 4.Six feet 45 extend from the second face 42 around the plate 40 and perpendicular thereto. The flanges 451 of the six feet 45, which extend substantially parallel to the plate 40, are coplanar and allow the pump P to rest stably on a flat floor in the configuration of the figures 2 and 4 .

Des perçages 452 sont réalisés sur les semelles 451 pour relier l'évidement intérieur de chaque pied 45 à l'extérieur de la pompe P, ce qui permet l'écoulement du liquide hors des pieds 45 et évite ainsi la stagnation de ce liquide.Holes 452 are made on the flanges 451 to connect the inner recess of each foot 45 outside the pump P, which allows the flow of liquid from the feet 45 and thus prevents stagnation of the liquid.

Les six pieds 45 définissent entre eux, deux à deux, six encoches 47 semblables présentant chacune une largeur L47 et une hauteur H47. Chaque encoche 47 définit une première ouverture limitant la taille des particules susceptibles d'être aspirées lors du pompage d'un liquide chargé dans la configuration des figures 2 et 4. Ainsi, lorsque la plaque 4 est montée sur l'embase 3 avec la deuxième face 42 tournée vers le sol, comme représenté aux figures 2 et 4, la pompe P est configurée pour évacuer un liquide chargé.The six feet 45 define between them, two by two, six notches 47 similar each having a width L 47 and a height H 47 . Each notch 47 defines a first opening limiting the size of the particles that can be sucked when pumping a liquid loaded into the configuration of the particles. figures 2 and 4 . Thus, when the plate 4 is mounted on the base 3 with the second face 42 turned towards the ground, as shown in FIGS. figures 2 and 4 , the pump P is configured to evacuate a charged liquid.

De manière similaire, dans la configuration des figures 1 et 3, la plaque 4 comporte des butées 46 qui s'étendent au-dessus de la première face 41 et qui sont séparées deux à deux par des décrochements 48. Les surfaces externes des butées 46 définissent des semelles 461 coplanaires, si bien qu'elles permettent à la pompe P de reposer de manière stable sur un sol plan. De plus, dans cette configuration la plaque 4 coïncide parfaitement avec le plan défini par des semelles 361 de butées 36 appartenant à l'embase 3.Similarly, in the configuration of figures 1 and 3 , the plate 4 comprises abutments 46 which extend above the first face 41 and which are separated in pairs by recesses 48. The outer surfaces of the stops 46 define coplanar soles 461, so that they allow at the pump P to rest stably on a flat floor. In addition, in this configuration the plate 4 coincides perfectly with the plane defined by flanges 361 of abutments 36 belonging to the base 3.

Chaque décrochement 48 présente une forme curviligne allongée et une hauteur H48 faible devant la hauteur H47. La hauteur H48 limite fortement la taille des particules solides susceptibles d'être aspirées lors du pompage dans la configuration des figures 1 et 3. Dans cette configuration, les décrochements 48 de la plaque 4 coincïdent avec des décrochements 38 de l'embase 3, ce qui évite de générer une restriction du débit au niveau du passage de liquide, tout en maximisant la surface d'appui de la pompe P sur le sol. Ainsi, lorsque la plaque 4 est montée sur l'embase 3 avec la première face 41 tournée vers le sol, comme représenté aux figures 1 et 3, la pompe P est configurée pour évacuer un liquide clair ou, du moins, un liquide chargé de particules présentant une taille inférieure à la hauteur H48.Each recess 48 has an elongated curvilinear shape and a low height H 48 in front of the height H 47 . The height H 48 strongly limits the size solid particles which can be sucked up during the pumping in the configuration of the figures 1 and 3 . In this configuration, the recesses 48 of the plate 4 coincide with recesses 38 of the base 3, which avoids generating a flow restriction at the liquid passage, while maximizing the bearing surface of the pump P On the ground. Thus, when the plate 4 is mounted on the base 3 with the first face 41 turned towards the ground, as shown in FIGS. figures 1 and 3 , the pump P is configured to discharge a clear liquid or, at least, a liquid loaded with particles having a size smaller than the height H 48 .

Comme les pieds 45 et les butées 46 sont en saillie de part et d'autre du plateau 40, ce dernier est apte à former avec l'embase 3 une première cavité 31, visible à la figure 4, et une deuxième cavité 32, visible à la figure 3. Le plateau 40 est commun aux première 31 et deuxième 32 cavités. Selon l'axe Z22, la première cavité 31 est plus haute que la deuxième cavité 32, et plus haute que la taille maximale des particules à évacuer.As the feet 45 and the abutments 46 project on either side of the plate 40, the latter is able to form with the base 3 a first cavity 31, visible at the figure 4 , and a second cavity 32, visible at the figure 3 . The plate 40 is common to the first 31 and second 32 cavities. Along the Z axis 22 , the first cavity 31 is higher than the second cavity 32, and higher than the maximum size of the particles to be discharged.

Comme le montrent les figures 9 à 11, l'embase 3 est sensiblement composée de deux cloches, haute 30 et basse 39, emboîtées l'une dans l'autre. La paroi de la cloche basse 39 définit un logement de forme cylindrique à base elliptique destinée à recevoir la plaque 4. La forme de la cloche haute 30 se compose sensiblement de la juxtaposition d'un cylindre à base circulaire et d'un prisme à base triangulaire d'axes parallèles entre eux et à l'axe de la cloche basse 39. La partie cylindrique de la cloche 30 est destinée à recevoir la roue à aubes 5, comme le montrent les figures 3 et 4, tandis que la partie prismatique de la cloche 30 forme un volume 23 dégagé qui permet l'écoulement d'un liquide L, éventuellement chargé de particules relativement grandes.As shown by Figures 9 to 11 the base 3 is substantially composed of two bells, high 30 and low 39, nested one inside the other. The wall of the lower bell 39 defines a cylindrical housing with an elliptical base intended to receive the plate 4. The shape of the upper bell 30 consists essentially of the juxtaposition of a cylinder with a circular base and a prism with a base triangular axes parallel to each other and to the axis of the lower bell 39. The cylindrical portion of the bell 30 is intended to receive the impeller 5, as shown by the Figures 3 and 4 while the prismatic portion of the bell 30 forms an open volume 23 which allows the flow of a liquid L, possibly charged with relatively large particles.

Les contours supérieurs des cloches basse 39 et haute 30 présentent chacun un anneau 35 pour le positionnement du demi-boîtier bas 2 sur l'embase 3. La liaison ainsi formée est complétée par un joint non représenté disposé dans une gorge 351 de l'anneau 35, de façon à rendre cette liaison étanche au liquide à évacuer.The upper contours of the low bells 39 and 30 each have a ring 35 for positioning the bottom half-housing 2 on the base 3. The connection thus formed is completed by a not shown joint disposed in a groove 351 of the ring 35, so as to make this connection tight to the liquid to be discharged.

L'embase 3 comporte une cloison 37 plane qui sépare les volumes définis par les cloches 30 et 39. La cloison 37 présente un orifice d'entrée 33, par lequel le liquide L aspiré peut pénétrer dans l'enceinte 21. L'orifice d'entrée 33 présente ici une forme circulaire de diamètre D33 supérieur à la taille maximale des particules à évacuer. L'orifice d'entrée 33 se trouve au droit de l'axe Z22 et les quatre trous 43 ménagés dans le plateau 40 sont répartis de façon symétrique par rapport à l'axe Z22. L'emplacement des trous 43 est défini de façon à éviter l'accès direct par l'utilisateur à la roue à aubes 5, lorsque la pompe P est en état de marche. Cela permet de sécuriser la pompe P et d'en préserver la roue 5 et le moteur 22. En l'occurrence, aucun des trous 43 ne fait face à l'orifice d'entrée 33 de la pompe P.The base 3 comprises a flat partition 37 which separates the volumes defined by the bells 30 and 39. The partition 37 has an inlet orifice 33, through which the liquid L sucked can penetrate into the enclosure 21. The orifice entry 33 presents here a circular shape of diameter D 33 greater than the maximum size of the particles to be evacuated. The inlet orifice 33 is in line with the Z axis 22 and the four holes 43 formed in the plate 40 are distributed symmetrically with respect to the Z axis 22 . The location of the holes 43 is defined so as to avoid direct access by the user to the impeller 5, when the pump P is in working order. This secures the pump P and preserve the wheel 5 and the motor 22. In this case, none of the holes 43 faces the inlet port 33 of the pump P.

Comme le montrent les figures 3 et 4, l'orifice 33 met en communication l'enceinte 21 avec la première cavité 31 ou avec la deuxième cavité 32, respectivement selon que la pompe P est configurée pour un liquide chargé ou pour un liquide clair.As shown by Figures 3 and 4 , the orifice 33 communicates the enclosure 21 with the first cavity 31 or with the second cavity 32, respectively, depending on whether the pump P is configured for a charged liquid or for a clear liquid.

Plusieurs ensembles de nervures 391 sont disposés à intervalles réguliers sur le pourtour de la paroi interne de la cloche basse 39. Les nervures 391 présentent chacune une forme rectangulaire plane disposée avec leur tranche supérieure solidaire de la paroi interne de la cloche basse 39.Several sets of ribs 391 are arranged at regular intervals around the perimeter of the inner wall of the lower bell 39. The ribs 391 each have a flat rectangular shape arranged with their upper edge integral with the inner wall of the lower bell 39.

La tranche inférieure 392 des nervures 391, c'est-à-dire la tranche opposée à la cloche haute 30, sert de moyen de butée pour positionner le plateau 40, donc la plaque 4, par rapport à l'embase 3, ce qui permet de former la première cavité 31 ou la deuxième cavité 32 et de faire coïncider les plans respectifs des semelles 361 et 461 dans la configuration pour liquides clairs. En d'autres termes, les nervures 391 jouent le rôle d'entretoises entre l'orifice d'entrée 33 et la plaque 4. La position de chaque ensemble de nervures 391 est définie de sorte que les nervures 391 s'inscrivent dans les encoches 47 lorsque la plaque 4 est montée en configuration pour liquide clair.The lower edge 392 of the ribs 391, that is to say the edge opposite the upper bell 30, serves as a stop means for positioning the plate 40, and therefore the plate 4, with respect to the base 3, which allows to form the first cavity 31 or the second cavity 32 and to match the respective planes of the flanges 361 and 461 in the configuration for clear liquids. In other words, the ribs 391 act as spacers between the inlet orifice 33 and the plate 4. The position of each set of ribs 391 is defined so that the ribs 391 fit into the notches 47 when the plate 4 is mounted in configuration for clear liquid.

Comme le montrent les figures 3 et 4, l'enceinte 21, y compris le volume délimité par la cloche haute 30 de l'embase 3, présente un volume 23 dégagé de tout obstacle entre l'orifice d'entrée 33 et l'embout de sortie 13. C'est essentiellement à travers le volume 23 que s'écoulent les liquides L à évacuer.As shown by Figures 3 and 4 , the chamber 21, including the volume defined by the upper bell 30 of the base 3, has a volume 23 clear of any obstacle between the inlet port 33 and the outlet nozzle 13. This is essentially through volume 23 flowing liquids L to evacuate.

La circulation des particules dans la pompe P ne doit être entravée par aucun obstacle, puisque l'on souhaite les évacuer par le tuyau 14. C'est pourquoi les sections débitantes respectives de la première cavité 31, de l'orifice d'entrée 33 et du volume 23 présentent chacune une dimension minimale supérieure à la taille maximale des particules à évacuer.Circulation of the particles in the pump P must not be impeded by any obstacle, since it is desired to evacuate them through the pipe 14. This is why the respective flow sections of the first cavity 31, of the inlet orifice 33 and 23 each have a minimum dimension greater than the maximum size of the particles to be evacuated.

En l'occurrence, la pompe P est destinée à traiter les conséquences d'inondation et de débordement de rivière, si bien qu'elle est dimensionnée pour évacuer de l'eau chargée de cailloux pouvant atteindre 30 mm dans leur plus grande dimension. En pratique, la dimension minimale des sections débitantes énoncées ci-dessus peut être supérieure à 32 mm. La roue à aubes 5 et le moteur 22 sont dimensionnés pour assurer le pompage d'un liquide ainsi chargé. De même, le diamètre D43 des trous 43 est prévu supérieur à 30 mm. Par ailleurs, la largeur L47 et la hauteur H47 des encoches 47 sont prévues légèrement supérieures à la taille maximale des particules à évacuer mais légèrement inférieures aux dimensions des sections débitants situées en aval. Les encoches 47 remplissent ainsi la fonction de tamis en empêchent les trop grandes particules de pénétrer dans la pompe P, où elles risqueraient de rester coincer. De plus, une fois les encoches franchies, les particules sont assurées d'être évacuées.In this case, the pump P is intended to treat the consequences of flooding and river overflow, so that it is sized to discharge water loaded with pebbles up to 30 mm in their largest dimension. In practice, the minimum dimension of the flow sections mentioned above may be greater than 32 mm. The impeller 5 and the motor 22 are sized to pump a liquid thus charged. Likewise, the diameter D 43 of the holes 43 is greater than 30 mm. Moreover, the width L 47 and the height H 47 of the notches 47 are provided slightly greater than the maximum size of the particles to be discharged but slightly smaller than the dimensions of the flow sections downstream. The notches 47 thus fulfill the function of sieves by preventing too large particles from entering the pump P, where they might become trapped. In addition, once the notches are crossed, the particles are guaranteed to be evacuated.

La roue à aubes 5 est constituée d'un polymère chargé de fibres, apte à résister à l'abrasion et aux chocs par des particules, telles que des cailloux, transportées par le liquide à évacuer. Les autres pièces susceptibles d'entrer en contact avec ces particules peuvent également être réalisées en polymère chargé de fibres.The impeller 5 is made of a fiber-filled polymer capable of withstanding abrasion and shocks by particles, such as pebbles, carried by the liquid to be discharged. Other parts likely to come into contact with these particles may also be made of fiber-filled polymer.

La plaque 4 est fixée sur l'embase 3 au moyen d'éléments de fixation qui sont ici constitués de deux vis 6 vissées à travers des trous 44 de la plaque 4 et dans des taraudages ménagés dans deux douilles de fixation 34 solidaires de l'embase 3. Les vis 6 sont agencées de manière à être accessibles depuis l'extérieur de l'enceinte 21 et de la pompe P. Ainsi, l'utilisateur peut rapidement démonter la plaque 4, la retourner, puis la remonter sur l'embase 3, afin de modifier la configuration de la pompe P.The plate 4 is fixed on the base 3 by means of fastening elements which here consist of two screws 6 screwed through holes 44 of the plate 4 and into threads formed in two fastening sleeves 34 integral with the 3. The screws 6 are arranged to be accessible from the outside of the enclosure 21 and the pump P. Thus, the user can quickly dismantle the plate 4, turn it over, then reassemble it on the base 3, to change the configuration of the pump P.

Comme le montrent les figures 5 et 6, la première face 41 et la deuxième face 42 comportent chacune une information 49 sur la configuration de montage de la plaque 4, afin de guider l'utilisateur lors du montage et/ou du démontage de la pompe P. Ces informations 49, respectivement « eau claire » et « eau chargée » correspondent à la nature du liquide L à évacuer et doivent être visibles sous la pompe.As shown by Figures 5 and 6 , the first face 41 and the second face 42 each comprise information 49 on the mounting configuration of the plate 4, to guide the user during assembly and / or disassembly of the pump P. This information 49, respectively " clear water "and" charged water "correspond to the nature of the liquid L to be discharged and must be visible under the pump.

Par ailleurs, les faces 41 et 42 comportent aussi des informations, non représentées, expliquant les manoeuvres à opérer pour changer de configuration.Furthermore, the faces 41 and 42 also include information, not shown, explaining the maneuvers to operate to change configuration.

La pompe objet de l'invention permet donc d'évacuer soit un liquide clair, soit un liquide chargé, la conversion entre ces deux utilisations étant particulièrement simple à opérer. Ainsi, l'utilisateur n'est pas obligé de choisir le type de pompe à acheter, ni d'acheter les deux types de pompe. L'invention présente également l'avantage d'augmenter les séries de production, donc d'en diminuer les coûts unitaires, puisque toutes les pièces d'une pompe conforme à l'invention sont communes aux deux utilisations d'une telle pompe, à savoir pour évacuer un liquide clair ou un liquide chargé.The pump object of the invention thus allows to evacuate either a clear liquid or a charged liquid, the conversion between these two uses being particularly simple to operate. Thus, the user is not obliged to choose the type of pump to buy, nor to buy both types of pump. The invention also has the advantage of increasing the series of production, thus of reducing the unit costs, since all the parts of a pump according to the invention are common to the two uses of such a pump, to know to evacuate a clear liquid or a loaded liquid.

Claims (11)

  1. Submersible pump (P), for removing of liquids (L), comprising:
    - an enclosure (21) having at least one socket (13) for the outlet of liquid (L) communicating with the outside of the enclosure (21),
    - an electric actuator (22) with a rotary (Z22) output shaft (225),
    - a bladed wheel (5) placed in the enclosure (21), driven by the actuator (22) and capable of rotating about the axis (Z22) of the output shaft (225),
    characterized in that a wall (37) of the enclosure (21) is defined by a base (3) having at least one inlet orifice (33) communicating with the outside of the enclosure (21), and in that it comprises a plate (4) capable of being mounted in a reversible manner close to the base (3) in two distinct configurations, a first mounting configuration (figures 2 and 4) being designed for the passage of a liquid (L) laden with solid particles, the other mounting configuration (Figures 1 and 3) being designed for the passage of a clear liquid, the enclosure (21) having a volume (23) that is cleared between the inlet orifice (33) and the outlet socket (13), so as to allow the liquid (L) laden with solid particles to flow away,
    in that the plate (4) has at least a first opening (47), in that the plate is capable of forming with the base (3) at least one first cavity (31), the dimensions (L47, H47) of the or each first opening (47) and of the or each first cavity (31) being suitable for the passage of the liquid (L) laden with solid particles, in that the plate (4) has at least one second opening (48)
    and in that the plate (4) is capable of forming with the base (3) at least one second cavity (32), the dimensions (H48) of the or each second opening (48) and of the or each second cavity (32) being suitable for the passage of the clear liquid (L).
  2. Pump (P) according to Claim 1, characterized in that the plate (4) has a portion (40) common to the first cavity (31) and to the second cavity (32), said common portion being drilled with at least one hole (43) for the passage of laden or clear liquid (L).
  3. Pump (P) according to Claim 1 or 2, characterized in that abutment means (391) are provided on the base (3) and/or on the plate (4) in order to position the plate (4) relative to the base (3), so as to form the first cavity (31) or the second cavity (32).
  4. Pump (P) according to one of the preceding claims, characterized in that said wall (37) defines the bottom of the enclosure (21) and in that the outlet socket (13) is on the upper portion (1) of the enclosure (21), when the pump (P) is in the position of use.
  5. Pump (P) according to one of the preceding claims, characterized in that the axis (Z22) of the output shaft (225) is vertical when the pump (P) is in the position of use, and in that the bladed wheel (5) comprises centrifugal-action blades.
  6. Pump (P) according to one of Claims 2 to 5, characterized in that the inlet orifice (33) is level with the axis (Z22) of the output shaft (225) and in that the plate (4) has several holes (43) distributed for the passage of liquid (L), the holes (43) being placed in a symmetrical manner relative to the axis (Z22) of the output shaft (225).
  7. Pump (P) according to one of the preceding claims, characterized in that the respective discharging cross sections of the first cavity (31), of the inlet orifice (33) and of the volume (23) each have a minimal dimension of more than 30 mm.
  8. Pump (P) according to Claim 7, characterized in that the dimensions (H47, L47) of the or each first opening (47) are smaller than the dimensions of the respective discharging cross sections of the first cavity (31), of the inlet orifice (33) and of the volume (23), in order to prevent the solid particles that must be removed from being jammed in the pump (P).
  9. Pump (P) according to one of the preceding claims, characterized in that the plate (4) comprises at least one item of information (49) on its mounting configuration (Figures 1, 2, 3, 4), preferably on one (41) and/or on the other (42) of its faces, depending on the nature of the liquid (L) to be removed.
  10. Pump (P) according to one of the preceding claims, characterized in that the plate (4) is fastened to the base (3) by means of fastening elements (6) that can be accessed from the outside of the enclosure (21).
  11. Pump (P) according to one of the preceding claims, characterized in that at least one face (41, 42) of the plate (4) has a flat bearing surface (451, 461) designed to support the pump (P) in a stable manner on a flat floor.
EP08166737A 2007-10-18 2008-10-16 Submersible pump Active EP2050967B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0758410A FR2922609B1 (en) 2007-10-18 2007-10-18 SUBMERSIBLE PUMP

Publications (2)

Publication Number Publication Date
EP2050967A1 EP2050967A1 (en) 2009-04-22
EP2050967B1 true EP2050967B1 (en) 2010-12-08

Family

ID=39474022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08166737A Active EP2050967B1 (en) 2007-10-18 2008-10-16 Submersible pump

Country Status (6)

Country Link
US (1) US8083502B2 (en)
EP (1) EP2050967B1 (en)
CN (1) CN101413516B (en)
AT (1) ATE491095T1 (en)
DE (1) DE602008003881D1 (en)
FR (1) FR2922609B1 (en)

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WO2016008510A1 (en) 2014-07-15 2016-01-21 Alfred Kärcher Gmbh & Co. Kg Immersion pump

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CA2850934C (en) 2010-08-09 2019-07-02 Stuart M. Armstrong Mechanism and arrangement for static and dynamic adjustment of submersible pumps associated with a floating platform
US10907638B2 (en) * 2015-07-27 2021-02-02 Wayne/Scott Fetzer Company Multi-outlet utility pump
EP3332127B1 (en) * 2015-08-03 2020-01-29 Husqvarna AB Submersible pump with float switch and float switch cable clip restrictor
FR3049660B1 (en) 2016-04-04 2021-10-15 Exel Ind SUBMERSIBLE PUMP AND PROCESS FOR STARTING UP SUCH A PUMP
US10851934B2 (en) * 2017-09-11 2020-12-01 Weir Canada, Inc. Mobile pump house
USD936176S1 (en) * 2019-08-12 2021-11-16 Logical Concepts, Inc. Submersible pump cage

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Publication number Priority date Publication date Assignee Title
WO2016008510A1 (en) 2014-07-15 2016-01-21 Alfred Kärcher Gmbh & Co. Kg Immersion pump

Also Published As

Publication number Publication date
US8083502B2 (en) 2011-12-27
FR2922609A1 (en) 2009-04-24
FR2922609B1 (en) 2010-02-19
ATE491095T1 (en) 2010-12-15
CN101413516A (en) 2009-04-22
US20090116984A1 (en) 2009-05-07
EP2050967A1 (en) 2009-04-22
CN101413516B (en) 2012-05-30
DE602008003881D1 (en) 2011-01-20

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