EP1588055B1 - Electric motor pump for swimming pool maintenance - Google Patents

Electric motor pump for swimming pool maintenance Download PDF

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Publication number
EP1588055B1
EP1588055B1 EP03785995A EP03785995A EP1588055B1 EP 1588055 B1 EP1588055 B1 EP 1588055B1 EP 03785995 A EP03785995 A EP 03785995A EP 03785995 A EP03785995 A EP 03785995A EP 1588055 B1 EP1588055 B1 EP 1588055B1
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EP
European Patent Office
Prior art keywords
pump
wheel
pressure
pump according
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03785995A
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German (de)
French (fr)
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EP1588055A1 (en
Inventor
Joel Queirel
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Financiere Piscine Equipement
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Financiere Piscine Equipement
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Publication of EP1588055A1 publication Critical patent/EP1588055A1/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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1245—Recirculating pumps for swimming pool water
    • 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
    • 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
    • F04D13/12—Combinations of two or more pumps
    • F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system

Definitions

  • the present invention relates to a dual electric pump for the maintenance of pools as disclosed in the document FR-A-2705384 .
  • the invention relates to a dual pump having a single electric motor, intended to act as two different pumps usually used for the maintenance of swimming pools.
  • the invention relates to a double pump with an electric motor, having a shaft each end of which drives a respective pump.
  • an electric motor pump for the maintenance of pools comprises an electric motor having a drive shaft, the shaft having, at each of its axial ends, a shaft outlet, and two pumping wheels. , each shaft output driving a respective pumping wheel, a first of the wheels operating at low pressure and high flow, and the second of the wheels operating at higher pressure and lower flow.
  • the pool maintenance system is thus simplified, since only one electric motor, and therefore only one electrical connection, is necessary, and the programming filtering and operating times of the cleaning robot is simplified.
  • the water pumped by the second pump wheel prefferably, the water pumped by the second pump wheel to be withdrawn near the outlet of the first pump wheel and to join the inlet of the second wheel.
  • the draw location is in a low pressure pump body upstream of the low pressure outlet.
  • the pump is a pump with two output stages operating in parallel and partially in series, capable of giving the flow rates and pressures necessary for example for the filtration and operation of a cleaning robot, with excellent efficiency.
  • the water pumped by the second pump wheel, between the withdrawal location and the inlet to the second pump wheel circulates around the engine to cool it.
  • the circulation of the water pumped by the second pumping wheel takes place in a serpentine pipe which surrounds the engine.
  • the circulation of the water pumped by the second pump wheel takes place in a cylindrical space formed around the motor, between the latter and an outer casing.
  • the assembly formed by the motor, the housing, the two pump wheels and the high pressure pump body is removably connected to the body of the low pressure pump.
  • the removable connection between said assembly and the low pressure pump body is made by bayonet engagement. It is then advantageous that the low pressure pump body is incorporated in a concrete block also containing a pool water filtration device.
  • the wheel operating at low pressure and high flow rate is intended for the filtration of the water of the basin, and the other wheel operating at higher pressure and lower flow is intended for a cleaning robot. swimming pool.
  • a pump 1 comprises an electric motor 2 having a shaft, each end of which forms a shaft outlet 3 intended to drive a pump wheel.
  • a first wheel 4 provides a low pressure pump and large flow, for the filtration circuit of the pool, while at the opposite end of the engine, the other shaft outlet causes a second 6 medium or high pressure pumping wheel and low flow, for the control of a pool cleaning robot.
  • the pool water enters through an axial mouth 11 and out of the low pressure pump 4 through an outlet 12, to the pool of the pool.
  • the water intended for the pump wheel 6 is withdrawn near the outlet of the pump wheel 4 at low pressure.
  • reference 7 designates a connection of a pipe 8 which feeds, through an inlet 9, the medium or high pressure pump whose output bears the reference 10.
  • the pipe 8 surrounds the housing 13 of the motor forming a coil disposed in intimate contact with this housing, for example by welding.
  • the water circulating in the pipe 8 ensures efficient cooling of the electric motor placed in the housing 13. This feature is very advantageous because the electric motor is optimally cooled, without the need to ventilate the room where it is located. 1a pump, in an efficient way and without energy consumption.
  • a 1700 W electric motor powered with alternating current at 220 V drives a first pumping wheel 4 which gives a flow rate of 18 m 3 / h at a pressure of 1.3 bar, and a second wheel pumping 6 which gives a flow rate of 2 m 3 / h at a pressure of 2.8 bar for the operation of the robot.
  • the second pump wheel 6 thus raises the pressure of the water intended for the operation of the robot from 1.3 to 2.8 bar.
  • FIGS. 4 to 6 represent another embodiment of double pump according to the invention.
  • This pump 14 draws water through an inlet 15 and transmits it in the form of a low pressure and high flow rate.
  • An output 17 transmits a current at high or medium pressure and low flow.
  • the pump is driven by an electric motor 18 which comprises a stator 19 and a rotor 20.
  • the stator comprises windings supplied with electric current, conventionally, not shown.
  • the rotor 20 is integral with a shaft having two outlets or ends 21 and 22.
  • the first low pressure and high flow pumping wheel 23 is mounted on a first shaft outlet 21. As indicated by FIG. figure 5 this wheel rotates in a centrifugal pump body which opens out through the outlet 16. Before this outlet 16, a hole 24 connects a location near the outlet of this pump to an annular space 25 which communicates through holes 26 with a space 27 formed between an inner conduit 28, forming a motor support 18 placed inside, and a housing 29, concentric with the conduit 28.
  • the space 27 is a cylindrical space formed around the motor.
  • This space fed by the holes 26 placed at the lower part of the pump as shown in FIG. figure 6 , joined, in the upper part of this figure, a second pump wheel 30 for raising the pressure of the water thus transmitted.
  • the high or medium pressure water and low flow is thus discharged through the outlet 17.
  • This pump wheel 30 is mounted on the other end 22 of the shaft of the electric motor 18.
  • the motor 18 is sealed from the two pump wheels by lip seals 31.
  • the electric motor 18 is thus sealed inside the space of the duct 28.
  • the stator 19 is force-fitted in the conduit 28, so that the heat exchange between the stator 19 and the water flowing in the cylindrical space 27, through the metal conduit 28, is excellent.
  • the Figures 4, 5 and 6 represent another advantageous characteristic of the pump according to the invention, used for the maintenance of swimming pools.
  • the assembly represented on the figure 6 that is, the motor, the housing, the two pump wheels and the entire body of the high pressure pump, form an assembly that can be separated from the body of the low pressure pump.
  • the whole represented on the figure 6 and the body of the low pressure pump cooperate through two seals 35, arranged substantially in the same plane and concentric with each other.
  • the body of the low pressure pump can be robustly connected to the pool filtration assembly and other components, all poured into concrete. Parts that may require servicing, that is, the assembly shown on the figure 6 , can be easily separated from the low pressure pump body which is then integrated into the concrete block containing the pool filtration system.
  • the invention allows a considerable reduction in the cost of installation.
  • the engine undergoes excellent cooling, on the one hand it can operate with a good efficiency in all the conditions of use, and on the other hand the temperature of the rotating parts, bearings, joints and other wearing parts remains low, so that the duration of use of the pump is considerably longer.
  • the volume required for installation is reduced.
  • operating noise is reduced, especially since no ventilation is needed for engine cooling.
  • the motor drives a pump at each end, it can be easily balanced.

Abstract

The invention concerns a dual pump, comprising an electric motor (18) including a drive shaft, the shaft including, at each of its axial ends, a shaft output (21, 22), and two pump impellers, each shaft output driving a respective pump impeller, one first of the pump impellers (23) operating at low pressure and high flow rate, and the second of the pump impellers (30) operating at higher pressure and lower flow rate. The water pumped by the second pump impeller (30) is drawn proximate the outlet of the first pump impeller (23) and returns to the inlet of the second pump impeller. The drawing point is situated in a low pressure pump chamber, upstream of the low pressure outlet (16). The invention is applicable to swimming pool maintenance.

Description

La présente invention concerne une pompe électrique double destinée à l'entretien des piscines telle qu'elle est divulguée dans le document FR-A-2705384 .The present invention relates to a dual electric pump for the maintenance of pools as disclosed in the document FR-A-2705384 .

On sait que l'entretien des piscines nécessite la circulation de plusieurs courants d'eau. Ainsi, l'eau du bassin circule dans un ensemble de filtration, de l'eau est transmise à un robot de nettoyage de la piscine, de l'eau est utilisée pour aspirer les débris, feuilles et autres déposés à la surface de la piscine, de l'eau est prélevée par une bonde en fond de piscine, etc. Ces diverses circulations d'eau sont assurées par des pompes respectives, adaptées chacune au débit et à la pression nécessaires.We know that the maintenance of swimming pools requires the circulation of several streams of water. Thus, the water of the basin circulates in a set of filtration, water is transmitted to a cleaning robot of the swimming pool, water is used to suck debris, leaves and others deposited on the surface of the swimming pool , water is taken by a drain at the bottom of the pool, etc. These various circulations of water are provided by respective pumps, each adapted to the flow and pressure required.

La multiplicité des pompes, et donc des moteurs qui les entraînent, complique l'équipement des piscines, et l'invention a pour objet une réduction de cette complication.The multiplicity of pumps, and therefore the motors that drive them, complicates the equipment of swimming pools, and the invention aims to reduce this complication.

Plus précisément, l'invention a pour objet une pompe double ayant un seul moteur électrique, destinée à jouer le rôle de deux pompes différentes habituellement utilisées pour l'entretien des piscines.More specifically, the invention relates to a dual pump having a single electric motor, intended to act as two different pumps usually used for the maintenance of swimming pools.

Bien que l'utilisation d'une telle pompe double puisse s'appliquer à différents courants de la piscine, on décrit l'invention dans son application à la circulation du courant de filtration et à la circulation du courant d'alimentation d'un robot de nettoyage.Although the use of such a double pump can be applied to different streams of the pool, the invention is described in its application to the circulation of the filtration stream and to the circulation of the feed stream of a robot. of cleaning.

Plus précisément, l'invention concerne une pompe double à moteur électrique, ayant un arbre dont chaque extrémité entraîne une pompe respective.More specifically, the invention relates to a double pump with an electric motor, having a shaft each end of which drives a respective pump.

Selon l'invention, une pompe à moteur électrique pour l'entretien des piscines comporte un moteur électrique ayant un arbre d'entraînement, l'arbre présentant, à chacune de ses extrémités axiales, une sortie d'arbre, et deux roues de pompage, chaque sortie d'arbre entraînant une roue respective de pompage, une première des roues fonctionnant à basse pression et grand débit, et la seconde des roues fonctionnant à plus haute pression et plus faible débit.According to the invention, an electric motor pump for the maintenance of pools comprises an electric motor having a drive shaft, the shaft having, at each of its axial ends, a shaft outlet, and two pumping wheels. , each shaft output driving a respective pumping wheel, a first of the wheels operating at low pressure and high flow, and the second of the wheels operating at higher pressure and lower flow.

L'installation d'entretien de piscine est ainsi simplifiée, puisqu'un seul moteur électrique, et donc un seul branchement électrique, est nécessaire, et la programmation des temps de filtration et de fonctionnement du robot de nettoyage est simplifiée.The pool maintenance system is thus simplified, since only one electric motor, and therefore only one electrical connection, is necessary, and the programming filtering and operating times of the cleaning robot is simplified.

Il est avantageux que l'eau pompée par la seconde roue de pompage soit soutirée à proximité de la sortie de la première roue de pompage et rejoint l'entrée de la seconde roue. De préférence, l'emplacement de soutirage se trouve dans un corps de pompe à basse pression, en amont de la sortie de basse pression.It is advantageous for the water pumped by the second pump wheel to be withdrawn near the outlet of the first pump wheel and to join the inlet of the second wheel. Preferably, the draw location is in a low pressure pump body upstream of the low pressure outlet.

Ainsi, la pompe est une pompe à deux étages de sortie fonctionnant en parallèle et partiellement en série, capable de donner les débits et pressions nécessaires par exemple à la filtration et au fonctionnement d'un robot de nettoyage, avec un excellent rendement.Thus, the pump is a pump with two output stages operating in parallel and partially in series, capable of giving the flow rates and pressures necessary for example for the filtration and operation of a cleaning robot, with excellent efficiency.

Selon une caractéristique très avantageuse, l'eau pompée par la seconde roue de pompage, entre l'emplacement de soutirage et l'entrée vers la seconde roue de pompage circule autour du moteur pour refroidir celui-ci.According to a very advantageous characteristic, the water pumped by the second pump wheel, between the withdrawal location and the inlet to the second pump wheel circulates around the engine to cool it.

De cette manière, le moteur électrique de la pompe est refroidi dans toutes les conditions de fonctionnement, et aucune ventilation spéciale du local n'est nécessaire, si bien que la perte d'énergie est réduite au minimum.In this way, the electric motor of the pump is cooled in all operating conditions, and no special ventilation of the room is necessary, so that the loss of energy is reduced to a minimum.

Dans une première variante, la circulation de l'eau pompée par la seconde roue de pompage s'effectue dans une tuyauterie en serpentin qui entoure le moteur.In a first variant, the circulation of the water pumped by the second pumping wheel takes place in a serpentine pipe which surrounds the engine.

Dans une seconde variante, la circulation de l'eau pompée par la seconde roue de pompage s'effectue dans un espace cylindrique formé autour du moteur, entre celui-ci et un boîtier extérieur.In a second variant, the circulation of the water pumped by the second pump wheel takes place in a cylindrical space formed around the motor, between the latter and an outer casing.

Il est avantageux que l'ensemble formé par le moteur, le boîtier, les deux roues de pompage et le corps de pompe à haute pression soit raccordé de façon amovible au corps de la pompe à basse pression. Dans un exemple de réalisation, le raccord amovible entre ledit ensemble et le corps de pompe à basse pression s'effectue par enclenchement à baïonnette. Il est alors avantageux que le corps de pompe à basse pression soit incorporé à un bloc de béton contenant aussi un dispositif de filtration d'eau de piscine.It is advantageous that the assembly formed by the motor, the housing, the two pump wheels and the high pressure pump body is removably connected to the body of the low pressure pump. In an exemplary embodiment, the removable connection between said assembly and the low pressure pump body is made by bayonet engagement. It is then advantageous that the low pressure pump body is incorporated in a concrete block also containing a pool water filtration device.

Dans un exemple d'application, la roue fonctionnant à basse pression et grand débit est destinée à la filtration de l'eau du bassin, et l'autre roue fonctionnant à plus haute pression et plus faible débit est destinée à un robot de nettoyage de piscine.In one application example, the wheel operating at low pressure and high flow rate is intended for the filtration of the water of the basin, and the other wheel operating at higher pressure and lower flow is intended for a cleaning robot. swimming pool.

D'autres caractéristiques et avantages de l'invention ressortiront mieux de la description qui va suivre d'exemples de réalisation, faite en référence aux dessins annexés selon lesquels :

  • la figure 1 est une vue en perspective d'une pompe vue du côté des sorties d'eau ;
  • la figure 2 est une autre vue en perspective de la pompe du côté de la roue de pompage à haute pression :
  • la figure 3 est une vue en élévation latérale en coupe partielle de la pompe des figures 1 et 2 ;
  • la figure 4 est une vue en perspective d'un autre mode de réalisation de pompe double selon l'invention ;
  • la figure 5 est une coupe de la partie inférieure de la pompe représentée sur la figure 4 ; et
  • la figure 6 est une demi-coupe de la pompe de la figure 4, par un plan différent du plan de coupe de la figure 5.
Other characteristics and advantages of the invention will emerge more clearly from the following description of exemplary embodiments, with reference to the appended drawings in which:
  • the figure 1 is a perspective view of a pump seen from the side of the water outlets;
  • the figure 2 is another perspective view of the pump on the side of the high pressure pumping wheel:
  • the figure 3 is a side elevational view in partial section of the pump of Figures 1 and 2 ;
  • the figure 4 is a perspective view of another embodiment of dual pump according to the invention;
  • the figure 5 is a section of the lower part of the pump shown on the figure 4 ; and
  • the figure 6 is a half-cut of the pump the figure 4 , by a plane different from the cutting plane of the figure 5 .

Sur les figures 1 à 3, une pompe 1 comporte un moteur électrique 2 ayant un arbre dont chaque extrémité forme une sortie d'arbre 3 destinée à entraîner une roue de pompage. A une première extrémité, une première roue 4 assure un pompage à basse pression et grand débit, pour le circuit de filtration de la piscine, alors qu'à l'autre extrémité opposée du moteur, l'autre sortie d'arbre entraîne une seconde roue 6 de pompage à pression moyenne ou élevée et à faible débit, destinée à la commande d'un robot de nettoyage de piscine. L'eau de la piscine pénètre par une embouchure axiale 11 et sort de la pompe à basse pression 4 par une sortie 12, vers le bassin de la piscine.On the Figures 1 to 3 , a pump 1 comprises an electric motor 2 having a shaft, each end of which forms a shaft outlet 3 intended to drive a pump wheel. At a first end, a first wheel 4 provides a low pressure pump and large flow, for the filtration circuit of the pool, while at the opposite end of the engine, the other shaft outlet causes a second 6 medium or high pressure pumping wheel and low flow, for the control of a pool cleaning robot. The pool water enters through an axial mouth 11 and out of the low pressure pump 4 through an outlet 12, to the pool of the pool.

Selon une caractéristique avantageuse mais non indispensable, l'eau destinée à la roue de pompage 6 est soutirée près de la sortie de la roue de pompage 4 à basse pression. Sur la figure 2 en particulier, la référence 7 désigne un raccord d'une canalisation 8 qui alimente, par une entrée 9, la pompe à pression moyenne ou élevée dont la sortie porte la référence 10.According to an advantageous but not essential characteristic, the water intended for the pump wheel 6 is withdrawn near the outlet of the pump wheel 4 at low pressure. On the figure 2 in particular, reference 7 designates a connection of a pipe 8 which feeds, through an inlet 9, the medium or high pressure pump whose output bears the reference 10.

Dans le mode de réalisation représenté, la canalisation 8 entoure le boîtier 13 du moteur en formant un serpentin disposé en contact intime avec ce boîtier, par exemple par soudage. L'eau qui circule dans la canalisation 8 assure un refroidissement efficace du moteur électrique placé dans le boîtier 13. Cette caractéristique est très avantageuse car le moteur électrique est refroidi de façon optimale, sans qu'il soit nécessaire de ventiler le local où se trouve 1a pompe, d'une manière efficace et sans consommation d'énergie.In the embodiment shown, the pipe 8 surrounds the housing 13 of the motor forming a coil disposed in intimate contact with this housing, for example by welding. The water circulating in the pipe 8 ensures efficient cooling of the electric motor placed in the housing 13. This feature is very advantageous because the electric motor is optimally cooled, without the need to ventilate the room where it is located. 1a pump, in an efficient way and without energy consumption.

Dans un exemple de réalisation, un moteur électrique de 1700 W alimenté en courant alternatif à 220 V, entraîne une première roue de pompage 4 qui donne un débit de 18 m3/h à une pression de 1,3 bar, et une seconde roue de pompage 6 qui donne un débit de 2 m3/h à une pression de 2,8 bar pour le fonctionnement du robot. La seconde roue de pompage 6 élève donc la pression de l'eau destinée au fonctionnement du robot de 1,3 à 2,8 bar.In an exemplary embodiment, a 1700 W electric motor powered with alternating current at 220 V, drives a first pumping wheel 4 which gives a flow rate of 18 m 3 / h at a pressure of 1.3 bar, and a second wheel pumping 6 which gives a flow rate of 2 m 3 / h at a pressure of 2.8 bar for the operation of the robot. The second pump wheel 6 thus raises the pressure of the water intended for the operation of the robot from 1.3 to 2.8 bar.

Les exemples donnés pour la puissance du moteur et pour les débits et pressions des roues de pompage utilisées pour la filtration et pour le fonctionnement du robot ne sont que des exemples qui doivent être modifiés en fonction des caractéristiques techniques de la piscine et notamment des dimensions de son bassin. Lorsque le robot n'est pas utilisé, l'eau de la seconde roue de pompage peut être transmis directement au bassin de la piscine ou utilisé dans un autre but.The examples given for the power of the motor and for the flow rates and pressures of the pump wheels used for the filtration and for the operation of the robot are only examples that must be modified according to the technical characteristics of the pool and in particular the dimensions of the pump. his pelvis. When the robot is not in use, the water from the second pump wheel can be passed directly to the pool or used for another purpose.

Les figures 4 à 6 représentent un autre mode de réalisation de pompe double selon l'invention. Cette pompe 14 aspire de l'eau par une entrée 15 et la transmet sous forme d'un courant à basse pression et grand débit. Une sortie 17 transmet un courant à pression haute ou moyenne et faible débit.The Figures 4 to 6 represent another embodiment of double pump according to the invention. This pump 14 draws water through an inlet 15 and transmits it in the form of a low pressure and high flow rate. An output 17 transmits a current at high or medium pressure and low flow.

La pompe est entraînée par un moteur électrique 18 qui comporte un stator 19 et un rotor 20. Le stator comporte des enroulements alimentés en courant électrique, de manière classique, non représentés. Le rotor 20 est solidaire d'un arbre ayant deux sorties ou extrémités 21 et 22.The pump is driven by an electric motor 18 which comprises a stator 19 and a rotor 20. The stator comprises windings supplied with electric current, conventionally, not shown. The rotor 20 is integral with a shaft having two outlets or ends 21 and 22.

La première roue de pompage à basse pression et grand débit 23 est montée sur une première sortie d'arbre 21. Comme l'indique la figure 5, cette roue tourne dans un corps de pompe centrifuge qui débouche par la sortie 16. Avant cette sortie 16, un trou 24 raccorde un emplacement voisin de la sortie de cette pompe à un espace annulaire 25 qui communique par des trous 26 avec un espace 27 formé entre un conduit interne 28, formant un support du moteur 18 placé à l'intérieur, et un boîtier 29, concentrique au conduit 28. L'espace 27 est donc un espace cylindrique formé tout autour du moteur.The first low pressure and high flow pumping wheel 23 is mounted on a first shaft outlet 21. As indicated by FIG. figure 5 this wheel rotates in a centrifugal pump body which opens out through the outlet 16. Before this outlet 16, a hole 24 connects a location near the outlet of this pump to an annular space 25 which communicates through holes 26 with a space 27 formed between an inner conduit 28, forming a motor support 18 placed inside, and a housing 29, concentric with the conduit 28. The space 27 is a cylindrical space formed around the motor.

Cet espace, alimenté par les trous 26 placés à la partie inférieure de la pompe comme représenté sur la figure 6, rejoint, à la partie supérieure de cette figure, une seconde roue de pompage 30 destinée à élever la pression de l'eau ainsi transmise. L'eau à pression haute ou moyenne et faible débit est ainsi évacuée par la sortie 17. Cette roue de pompage 30 est montée sur l'autre extrémité 22 de l'arbre du moteur électrique 18.This space, fed by the holes 26 placed at the lower part of the pump as shown in FIG. figure 6 , joined, in the upper part of this figure, a second pump wheel 30 for raising the pressure of the water thus transmitted. The high or medium pressure water and low flow is thus discharged through the outlet 17. This pump wheel 30 is mounted on the other end 22 of the shaft of the electric motor 18.

On note en outre sur la figure 6 que le moteur 18 est séparé de manière étanche des deux roues de pompage par des joints à lèvre 31. Le moteur électrique 18 est ainsi enfermé de manière étanche à l'intérieur de l'espace du conduit 28. Le stator 19 est emmanché à force dans le conduit 28, si bien que l'échange de chaleur entre le stator 19 et l'eau qui circule dans l'espace cylindrique 27, à travers le conduit métallique 28, est excellent.We also note on the figure 6 that the motor 18 is sealed from the two pump wheels by lip seals 31. The electric motor 18 is thus sealed inside the space of the duct 28. The stator 19 is force-fitted in the conduit 28, so that the heat exchange between the stator 19 and the water flowing in the cylindrical space 27, through the metal conduit 28, is excellent.

Les figures 4, 5 et 6 représentent une autre caractéristique avantageuse de la pompe selon l'invention, utilisée pour l'entretien des piscines. Selon cette caractéristique, l'ensemble représenté sur la figure 6, c'est-à-dire le moteur, le boîtier, les deux roues de pompage et l'ensemble du corps de la pompe à haute pression, forme un ensemble qui peut être séparé du corps de la pompe à basse pression. Comme l'indique la figure 5, l'ensemble représenté sur la figure 6 et le corps de la pompe à basse pression coopèrent par l'intermédiaire de deux joints d'étanchéité 35, disposés sensiblement dans le même plan et concentriques l'un à l'autre.The Figures 4, 5 and 6 represent another advantageous characteristic of the pump according to the invention, used for the maintenance of swimming pools. According to this characteristic, the assembly represented on the figure 6 that is, the motor, the housing, the two pump wheels and the entire body of the high pressure pump, form an assembly that can be separated from the body of the low pressure pump. As the figure 5 , the whole represented on the figure 6 and the body of the low pressure pump cooperate through two seals 35, arranged substantially in the same plane and concentric with each other.

La tenue de l'ensemble représenté sur la figure 6, solidarisé par des boulons 32, est assuré par des languettes 33, solidaires de l'ensemble amovible représenté sur la figure 6, insérées sous des doigts 34 dépassant du corps de la pompe à basse pression. Ces ensembles à languette et doigt sont régulièrement répartis autour de la pompe afin que l'ensemble représenté sur la figure 6 puisse être fixé au corps de la pompe à basse pression par rotation autour de son axe, les languettes 33 et les doigts 34 formant un ensemble de blocage du type à baïonnette.The holding of the whole represented on the figure 6 , secured by bolts 32, is provided by tabs 33, integral with the removable assembly shown on the figure 6 , inserted under fingers 34 protruding from the body of the low pressure pump. These tongue and finger assemblies are regularly distributed around the pump so that the assembly represented on the figure 6 can be attached to the body of the low pressure pump by rotation about its axis, the tongues 33 and the fingers 34 forming a locking assembly of the bayonet type.

Dans ce cas, le corps de la pompe à basse pression peut être raccordé de manière robuste à l'ensemble de filtration de la piscine et à d'autres éléments, le tout étant coulé dans du béton. Les parties qui peuvent nécessiter un entretien, c'est-à-dire l'ensemble représenté sur la figure 6, peut être facilement séparé du corps de pompe à basse pression qui est alors intégré au bloc de béton contenant le système de filtration de la piscine.In this case, the body of the low pressure pump can be robustly connected to the pool filtration assembly and other components, all poured into concrete. Parts that may require servicing, that is, the assembly shown on the figure 6 , can be easily separated from the low pressure pump body which is then integrated into the concrete block containing the pool filtration system.

Ainsi, comme une pompe double remplace deux pompes habituellement utilisées, l'invention permet une réduction considérable du coût d'installation. Comme le moteur subit un refroidissement excellent, d'une part il peut fonctionner avec un bon rendement dans toutes les conditions d'utilisation, et d'autre part la température des parties tournantes, paliers, joints et autres pièces d'usure reste faible, si bien que la durée d'utilisation de la pompe est considérablement allongée. Comme une seule pompe double est utilisée à la place de deux pompes, le volume nécessaire à l'installation est réduit. En outre, comme il n'existe qu'un seul moteur, les bruits de fonctionnement sont réduits, d'autant plus qu'aucune ventilation n'est nécessaire pour le refroidissement du moteur. De plus, comme le moteur entraîne une pompe à chaque extrémité, il peut être facilement équilibré.Thus, as a dual pump replaces two pumps usually used, the invention allows a considerable reduction in the cost of installation. As the engine undergoes excellent cooling, on the one hand it can operate with a good efficiency in all the conditions of use, and on the other hand the temperature of the rotating parts, bearings, joints and other wearing parts remains low, so that the duration of use of the pump is considerably longer. Since only one double pump is used instead of two pumps, the volume required for installation is reduced. In addition, as there is only one engine, operating noise is reduced, especially since no ventilation is needed for engine cooling. In addition, since the motor drives a pump at each end, it can be easily balanced.

Bien qu'on ait décrit l'invention en référence à une pompe utilisée pour faire circuler l'eau dans le circuit de filtration et pour le fonctionnement du robot de nettoyage, d'autres applications sont possibles. Par exemple, lorsque le fonctionnement du robot de nettoyage n'est pas nécessaire, il est possible d'utiliser le débit à haute ou moyenne pression pour tout autre type de dispositif de nettoyage de bassin, de massage, de multiplication de débit par exemple pour le circuit de filtration, etc.Although the invention has been described with reference to a pump used to circulate water in the filtration circuit and for the operation of the cleaning robot, other applications are possible. For example, when the operation of the cleaning robot is not necessary, it is possible to use the high or medium pressure flow for any other type of basin cleaning device, massage, multiplication of flow for example for the filtration circuit, etc.

Bien entendu, diverses modifications peuvent être apportées par l'homme de l'art aux pompes qui viennent d'être décrites uniquement à titre d'exemple non limitatif sans sortir du cadre de l'invention.Of course, various modifications can be made by those skilled in the art to the pumps that have just been described by way of non-limiting example without departing from the scope of the invention.

Claims (10)

  1. Pump having an electric motor for the maintenance of swimming pools, characterised in that it comprises an electric motor (2; 18) which has a drive shaft, the shaft having, at each of the axial ends thereof, a shaft output (3, 5; 21, 22), and two pumping wheels, each shaft output driving a respective pumping wheel, a first of the wheels (4; 23) operating at low pressure and high output, and the second of the wheels (6; 30) operating at a higher pressure and lower output.
  2. Pump according to claim 1, characterised in that the water pumped by the second pumping wheel (6; 30) flows around the motor (2; 18) in order to cool it.
  3. Pump according to either claim 1 or claim 2, characterised in that the water pumped by the second pumping wheel (6; 30) is tapped (7; 24) in the region of the outlet of the first pumping wheel (4; 23) and joins the inlet of the second wheel.
  4. Pump according to claim 3, characterised in that the tapping location (7; 24) is in a low-pressure pump body upstream of the low-pressure outlet (12; 16).
  5. Pump according to claim 4, characterised in that the flow of the water pumped by the second pumping wheel (6) is carried out in a serpentine pipe (8) which surrounds the motor.
  6. Pump according to claim 4, characterised in that the flow of the water pumped by the second pumping wheel (30) is carried out in a cylindrical space (27) which is formed around the motor (18), between the motor and an outer casing (29).
  7. Pump according to claim 6, characterised in that the assembly formed by the motor (18), the casing (29), the two pumping wheels (23, 30) and the high-pressure pump body is releasably connected to the body of the low-pressure pump.
  8. Pump according to claim 7, characterised in that the releasable connection between the said assembly and the low-pressure pump body is carried out by means of bayonet type engagement.
  9. Pump according to any one of the preceding claims, characterised in that the wheel (4; 23) which operates at low pressure and high output is intended for the filtration and the other wheel (6; 30) which operates at a higher pressure and lower output is intended for a swimming pool cleaning robot.
  10. Pump according to any one of the preceding claims, characterised in that the low-pressure pump body is incorporated in a concrete block which also contains a swimming pool water filtration device.
EP03785995A 2002-10-25 2003-10-24 Electric motor pump for swimming pool maintenance Expired - Lifetime EP1588055B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0213384A FR2846383B1 (en) 2002-10-25 2002-10-25 ELECTRIC PUMP FOR THE MAINTENANCE OF SWIMMING POOLS
FR0213384 2002-10-25
PCT/FR2003/003171 WO2004040144A1 (en) 2002-10-25 2003-10-24 Electric motor pump for swimming pool maintenance

Publications (2)

Publication Number Publication Date
EP1588055A1 EP1588055A1 (en) 2005-10-26
EP1588055B1 true EP1588055B1 (en) 2010-11-17

Family

ID=32088284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03785995A Expired - Lifetime EP1588055B1 (en) 2002-10-25 2003-10-24 Electric motor pump for swimming pool maintenance

Country Status (9)

Country Link
US (1) US7828530B2 (en)
EP (1) EP1588055B1 (en)
AT (1) ATE488699T1 (en)
AU (1) AU2003295004A1 (en)
CA (1) CA2502838C (en)
DE (1) DE60335030D1 (en)
ES (1) ES2357829T3 (en)
FR (1) FR2846383B1 (en)
WO (1) WO2004040144A1 (en)

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Also Published As

Publication number Publication date
CA2502838C (en) 2012-05-22
DE60335030D1 (en) 2010-12-30
US20060104840A1 (en) 2006-05-18
CA2502838A1 (en) 2004-05-13
EP1588055A1 (en) 2005-10-26
FR2846383B1 (en) 2005-07-08
WO2004040144A1 (en) 2004-05-13
US7828530B2 (en) 2010-11-09
FR2846383A1 (en) 2004-04-30
ES2357829T3 (en) 2011-05-03
AU2003295004A1 (en) 2004-05-25
ATE488699T1 (en) 2010-12-15

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