EP1902187B1 - Filtering and maintenance unit for swimming pool, and retaining basket - Google Patents

Filtering and maintenance unit for swimming pool, and retaining basket Download PDF

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Publication number
EP1902187B1
EP1902187B1 EP06778859A EP06778859A EP1902187B1 EP 1902187 B1 EP1902187 B1 EP 1902187B1 EP 06778859 A EP06778859 A EP 06778859A EP 06778859 A EP06778859 A EP 06778859A EP 1902187 B1 EP1902187 B1 EP 1902187B1
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EP
European Patent Office
Prior art keywords
filtration
water
casing
maintenance unit
cartridge
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EP06778859A
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German (de)
French (fr)
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EP1902187A2 (en
Inventor
Joel Queirel
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Individual
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Individual
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Priority to EP09173602A priority Critical patent/EP2141308A1/en
Publication of EP1902187A2 publication Critical patent/EP1902187A2/en
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Publication of EP1902187B1 publication Critical patent/EP1902187B1/en
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    • 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
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • E04H4/169—Pool nozzles
    • 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
    • E04H4/1218—Devices for removal of polluted water; Circumferential gutters

Definitions

  • the present invention relates to a pool filtration and maintenance group.
  • WO 04/109 042 discloses a flow multiplier device, and filter groups, fixed or mobile, comprising such a flow multiplier device.
  • a flow multiplier device comprises an ejector which projects a flow of water under pressure in a convergent followed by a conduit.
  • This device has the advantage of giving, at the outlet of the conduit, a much higher flow rate than that which feeds the ejector. For example, when the ejector receives water at a pressure between 0.5 and 3 bar, the flow multiplier obtained is much greater than 5 and often reaches 10.
  • pool filtration and maintenance groups that are mobile, that is to say that can be removed from the pool, for example in winter or for use in other pools.
  • These groups have various features and improvements that can also be used in the filtration and maintenance group of the invention and are therefore not described in detail herein.
  • a first problem is that when the entire group is inside the perimeter of the pool, it is necessary to ensure the power supply of the drive motor of the pump, by an electric cable that is in contact water from the pool.
  • the drive motor of the pump is not disposed in the group itself, but outside.
  • the pool is equipped with a device for connecting water circulation ducts between the mobile unit and the suction and discharge ducts respectively.
  • a connection must be made permanently, that is to say in the very structure of the walls of the pool and must either be provided from the outset, or be installed by expensive work, or it must include flexible ducts that pose safety and aging problems.
  • the document US-2002/040869 relates to a filter assembly having two juxtaposed parts which are separated by a wall, and connected by pipes which cross the wall. There is no intermediate link between the two parts that can be embedded in a lip.
  • the document DE 2630315 A1 has a filtration and maintenance group having the features of the preamble of claim 1.
  • One embodiment of the invention allows the solution of the aforementioned problem by providing a pool filtration and maintenance group which has two distinct parts, one intended to be immersed in the pool water and the other. another intended to be placed outside the perimeter of the pool, the two parts being connected by a connecting device. Since this connecting device has as sole essential function the passage of conduits between the pump placed in the outer part and the flow multiplier device placed in the inner part of the pool, and as the flow rate in these ducts is low thanks to the Using the multiplier flow, the ducts may have a small diameter and the connecting device may have a low height and can be housed directly in the lip that normally has a pool, without constituting a significant obstacle.
  • the invention is defined by a pool filtration and maintenance group which comprises the features of claim 1.
  • the support of the filtration and maintenance group comprises two parts distant from each other and connected by a connection device, a first part being intended to be partially immersed in a swimming pool and supporting the flow multiplier device and the filtering device, and a second part being intended to be arranged, in plan view, outside the perimeter of the pool and to transmit water under pressure to the first part, the connecting device being arranged between the first and second parts and comprising suction lines of water and pressurized water discharge.
  • the second part supports the pump and its motor.
  • the group advantageously comprises an envelope which surrounds it and which comprises a first envelope part corresponding to the first part of the group, a second part of envelope corresponding to the second part of the group, and an intermediate part of envelope corresponding to the connecting device.
  • the first envelope portion and the second envelope portion are separable.
  • the separation between the second envelope portion and the first envelope portion is at a location which is at the coupling of the intermediate envelope portion containing the connecting device with one of the first and second parts of the envelope or between these connections.
  • the dimensions of the intermediate portion of the envelope are such that, in the working position of the group, the intermediate portion of envelope is substantially housed in the volume normally occupied by the edge of the pool edge.
  • the height dimension of the intermediate portion of the envelope, in the working position of the group is advantageously less than 12 cm and preferably of the order of 5 cm.
  • the longitudinal dimension of the intermediate portion of the envelope, between the first and the second envelope portion is substantially equal to the thickness of the wall forming the periphery of the swimming pool, and that the lateral dimension of the device linkage is less than or equal to the length of a prefabricated element of coping.
  • the second envelope portion is intended to be housed in a housing attached to the outside of the perimeter of the pool.
  • a cover is advantageously intended to close the housing when it does not contain the second envelope part, the cover can also occupy the space normally occupied by the intermediate portion of the envelope.
  • the first part of the group comprises at least one filter cartridge, and, preferably, the filter cartridge has an elongate section, comprising two rounded end portions and two substantially rectilinear intermediate portions.
  • the cartridge is provided with a perforated support for preventing its deformation during filtration of the water, and the perforated support is placed outside the cartridge.
  • the length of the section of the cartridge is greater than or equal to twice its width measured between its rectilinear parts.
  • the shell has a water inlet opening disposed at the top of the first shell portion, and the water inlet opening disposed both below and above the expected level of water in the pool, comprises a device with retaining flap known in the art under the name of "skimmer".
  • the envelope defines, in its first part, a first volume directly connected to the pool water and a second volume, the second volume being connected to the first volume only through the filtration cartridge, and being connected to the outside through the flow multiplier device, the pressure in the second volume, when the group is in operation, being less than the pressure in the first volume at the same height.
  • the group further comprises an indicating device of a magnitude representative of the pressure difference between the first and second volumes of the first envelope portion.
  • the indicator device may comprise an observation part making it possible to see simultaneously the level of the water in the first volume and the level of the water in the second volume during the operation of the group, the difference between the two levels indicating the difference pressure between the two volumes.
  • the ejector supply duct portion disposed in the first casing portion has a shunt joining the outside of the casing and a valve that can be controlled from outside the casing so that at least a portion of the discharge flow of the pump can flow in the branch for the supply of an accessory.
  • the first envelope portion may have at least one electrical lighting device, and for the at least one power supply cable of the lighting device to at least join the second envelope portion while passing. in the middle part of the envelope.
  • a second problem is related to the fact that mobile filtration and pool maintenance units should be as light as possible to facilitate their placement, removal and transportation. It is therefore desirable on the one hand to reduce the weight and the size of the devices used, and on the other hand to combine functions in devices whose weight is less than that of the elements they replace.
  • the group comprises a contaminant holding basket, intended to be disposed in a passage formed between a pool water inlet opening and a filter cartridge, the basket having a positive flotation force, even when it contains a nominal quantity of contaminating material, so that it naturally has a tendency to rise in standing water, and, when it is free of any contaminating material and is in the passage in the presence of a nominal flow of pool water, it creates a pressure drop at least equal to its buoyancy, so that it tends to go down.
  • a wall 10 delimits the perimeter of a swimming pool and its upper part is surmounted by a coping, represented in the form of a lip with safety nozzle.
  • the whole of the group bears the reference 14 and comprises an envelope which comprises a first envelope portion 16 containing a first portion of the group and intended to be immersed for the greater part, and a second envelope portion 18 which contains a second part of the filtration group.
  • the two envelope parts are connected by an intermediate envelope portion 20 which contains a connecting device.
  • the second part of the group casing As the figure 1 , the second part of the group casing according to one embodiment of the invention which is represented alone on the figure 2 , is housed in a housing 22 disposed outside the perimeter of the pool.
  • the first envelope portion 16 comprises, at its front part, a water inlet opening 24 intended to be partially immersed, two water outlets 26 and, as an accessory and purely possible accessory, two lighting devices. 28.
  • the figure 2 also represents a pressurized water outlet 30 provided with a control device of an associated valve.
  • FIG. 4 a diagram of the group, the same numerical references were used as on the Figures 1 to 3 to designate the first casing part 16 of the first part of the group, the second casing part 18 and the casing intermediate part 20 containing the connecting device, as well as the references 24, 26 and 30 to designate an inlet of water, a water outlet and a water intake under pressure.
  • the two dashed lines 32 and 34 conceptually indicate the boundary between the first part of the group and the connecting device on the one hand and between the connecting device and the second group part on the other hand.
  • This envelope portion 16 has at least one opening 24 partially submerged, that is to say that the normal water level 36 of the pool is between the top and bottom of the opening 24.
  • the water can enter freely through the opening 24 and passes into a basket 38 and inside a cartridge 40.
  • This is externally held by a perforated support 42.
  • the lower portion of the cartridge is connected by a conduit 44, which opens at a lower orifice 46, with the pool water well below the surface.
  • the relative dimensions of the opening 24, the cartridge 30, the duct 44 and the opening 46 are such that, preferably, about one fourth of the overall flow entering the cartridge passes through the lower duct 44, and the three It is noted that this arrangement allows the retention by the basket 38 of all the floating contaminating parts, whereas only fine impurities penetrate through the lower conduit 44.
  • a partition 48 delimits, inside the first casing portion 16 and in cooperation with the cartridge and the duct 44, a first volume to which the water of the swimming pool freely accesses, and a second volume placed at the outside the cartridge and inside the envelope portion 16 below the partition 48; this second volume communicates with the first volume only through the cartridge 40 and with the external volume as the orifice 26 of the water outlet of the flow multiplier.
  • the difference in level can be transformed into a signal understandable by an observer.
  • the water of the conduit 50 may carry a float which, following the level 54, shows a color changing from green to yellow then red when the level goes down. This color may for example be applied directly to the wall of the conduit 50.
  • Many other devices may give an analogous indication.
  • the flow multiplier device itself comprises a suction inlet 56 of water disposed in the second volume, and connected by a duct 58 to the pump 60.
  • a discharge duct 62 of the pump 60 returns to the first part of the pump. group for supplying the ejector 64 of the flow multiplier 66.
  • the duct 62 comprises a valve 66 allowing, by its control 68 accessible from outside the casing, to transmitting some or all of the flow of the pump 60 to an outlet 30; this water can be used for example to power a broom, a cleaning robot, etc.
  • the flow multiplier device 66 which is powered by the ejector 64 placed at the end of the conduit 62 transmits a high rate of overpressure to the outlet 26, thereby forming a strong and constant brewing current.
  • a pump 300 consuming 300 W gives a flow rate of about 2 m 3 / h at a pressure of 1.8 bar.
  • the flow multiplier receiving this flow rate of 2 m 3 / h, discharges a flow rate of 16 m 3 / h through the outlet 26.
  • This flow corresponds to flows of 12 m 3 / h through the upper opening 24 and 4 m 3 / h through the lower opening 46.
  • the portion 16 has a height of about 0.8 m, a width of about 0.4 m and a depth of less than 0.2 m.
  • the ducts 58 and 62 transmit only a flow rate of 2 m 3 / h, their diameter may be only a few centimeters, so that the intermediate portion of the envelope which surrounds the connecting device consisting of parts of the ducts 58 and 62, may have a height of only a few centimeters, as shown on the figure 1 on which it is noted that the connecting device has a thickness which is even lower than that of the safety tip of the coping shown.
  • the figure 5 represents the main elements placed inside the envelope portion 16 shown in FIGS. 1 to 3; it corresponds to a double system, compared to the simple system just described with reference to the figure 4 .
  • the figure 5 represents the arrangement of two flow multiplier devices 66 having outlets 26, on either side of two cartridges 40 juxtaposed in the central part of the envelope part 16.
  • the figure 6 represents a flow multiplier device.
  • the ejector 64 is held in the center of a convergent 72 by fins 70, and the output of the convergent 72 is connected to a pipe section 74 of constant diameter, then to a divergent 76 which transmits the current formed to an elbow pipe 78. This last evacuates the current formed by the exit 26.
  • the outlets 26 of the two flow multipliers 66 are turned towards the inside of the pool, and the water inlet openings 24 are turned towards the sides of the part 16.
  • the arrangement may be the opposite.
  • the outlets 26 can be placed on the sides and the openings can be arranged at the front, and can even be formed by a single opening.
  • all the inlet 24 and outlet openings 26 can be formed on the same face, this characteristic is not advantageous because the currents coming from the outlets 26 on the one hand and going towards the openings 24 on the other hand have then opposite senses.
  • a disadvantage is that some of the filtered water can come back immediately to be filtered again. It is therefore desirable that these currents be separated, that is to say, transmitted to orifices formed on different faces.
  • the arrangement of the multiplier devices is only illustrative.
  • the interior of the envelope portion 16 may be arranged differently, for example with flow multipliers arranged horizontally, for example at the bottom of the first envelope portion.
  • the figure 7 represents a cartridge 40 and its associated basket 38.
  • the cartridge 40 is shown in flattened form, with two ends in a semi-circle and two rectilinear intermediate parts. This flattened arrangement allows, as indicated by figure 5 , place two cartridges next to each other and obtain a larger filtration area than that of a single cylindrical cartridge of circular section occupying the same volume.
  • the cartridge may be formed of a pleated nonwoven having pleats with a length of 21 mm.
  • the cartridge may have a length of 60 cm, and its section may have a length of 21 cm and a width of 9 cm. It is thus possible to have two cartridges in space which would be occupied by a single cylindrical cartridge of circular section having a diameter of 21 cm.
  • Such a cartridge gives a filtration area of 3.6 m 2 , so that the two cartridges represented on the figure 5 give a filtration area of 7.2 m 2 .
  • the skimmer retaining flap can be removed, thereby simplifying the filtration unit.
  • the basket has a lid that is open during the operation of the filter group, but closes when the group stops.
  • the basket goes up so that its inlet opening is above the level of the water surface of the pool as soon as the filtration unit stops, and thus prevents the return to the pool.
  • the basket 38 has a body 84 which defines side openings of the order of 1 to 5 mm: the contaminating materials are retained by the basket and only the fine particles reach the cartridge. Basket 38 must be cleaned when it has accumulated enough contaminating material, it can be extracted by a handle 86.
  • lid 88 which closes the upper opening of the basket when it is not being filtered, and thus plays the role of the skimmer retaining flap.
  • the created depression opens the lid 88 so that water and contaminating materials can freely enter the body 84.
  • the cover 88 resumes its closed position and prevents contaminating materials from rising in the water placed above the cartridge, and then in the pool.
  • the Figures 9 and 10 represent the second basket variant which is particularly advantageous because it is very simple.
  • a cartridge 92 shown in the form of a cylinder of circular section is disposed in the envelope portion 16 which has a water inlet opening 24 near its upper part and a conduit 44, opening through the orifice 46, at its lower part.
  • a ballast 93 holds the cartridge against the bottom of the envelope, so that it remains in position and does not tend to rise. However, it can be easily grasped by its upper part to be released, for example to be cleaned.
  • a basket 92 for retaining contaminants is disposed in the passage connecting the pool water inlet opening 24 to the filter cartridge 92.
  • This basket 94 has an upper flange 96 which largely disengages its upper inlet and can be applied against the upper edge of the cartridge 92, in a sufficiently sealed manner so that contaminating materials can not bypass it to reach the cartridge 92 without passing into the basket 94.
  • basket 94 also has a closed bottom, the side opposite the flange, which is provided with a flotation member 98.
  • flotation member may comprise a sealed chamber, optionally provided with a plastic foam, or a member of a closed-cell plastic foam, or any other flotation device.
  • the basket has a positive flotation force, even when it contains a nominal amount of contaminating material, so that it has a natural tendency to rise in standing water.
  • it when it is devoid of any contaminating material and is in the passage in the presence of a nominal flow of water from the pool, it creates a pressure drop at least equal to its flotation force, so that he has a tendency to descend.
  • This nominal flow rate is normally between 2 and 30 m 3 / h, and preferably between 5 and 15 m 3 / h.
  • the flange 96 When the filtration unit is in operation, the flange 96 is in contact with the upper portion of the cartridge 92 in a sufficiently sealed manner that contaminating material entering through the opening 24 can not reach the cartridge 92 without passing through. in the basket 94. When the filtration unit stops operating, the basket 94 rises and takes the position of the figure 10 wherein the flange 96 is above the level of the water surface in the pool and prevents contaminating materials from returning to the pool.
  • This embodiment is particularly effective in the embodiment shown in the Figures 9 and 10 , in which only the part of the water that comes from the vicinity of the surface, and can therefore be loaded with contaminating material, goes into the basket.
  • the flotation device which gives most of its flotation force to the basket, near the bottom thereof, it may also be adjacent to the flange of the basket.
  • the conduits 58 and 62 may be multiple.
  • This remark also applies to the suction duct 58.
  • the figure 3 represents an outer casing 22; it appears that, when the filtration unit has been removed, it is desirable for a lid to close the housing 22 to prevent the entry of foreign matter, which cover can also advantageously fill the space provided in the border for the passage of the intermediate part of the envelope.
  • the housing 22 can be simply used for connecting the filtration and maintenance unit to a suction-discharge circuit, via the quick coupling, this circuit can be placed remote, and including a pump and a motor placed for example in a nearby garage.
  • the second casing portion no longer contains a pump, but only suction and discharge connections.
  • the group of handles (not shown) facilitating its handling, especially when leaving the pool.
  • the entire empty group is light, especially when the envelope is formed of a polyolefin blow molded, it should be noted that when the group is removed from a pool, it is filled with water. It must be removed gradually so that water can escape.
  • the water can escape, either directly or through the cartridge in the opposite direction of its normal direction. In this case, it is desirable that the length of the conduit 44 be as small as possible.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Filtration Of Liquid (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The unit has a housing with parts (16, 18) connected by an intermediate part (20) with a connection device. The housing delimits a volume connected to swimming pool water and another volume connected to the former volume via a filtering cartridge (40). A contaminant particle retaining basket is placed in a passage between an inlet opening (24) and the cartridge. The part (16) has a conduit (44) connecting the cartridge`s lower part to the outside of a lower part of the part (16), so that the cartridge`s inside receives water from a surface and the pool water at a level lower than the surface. An independent claim is also included for a retaining basket for a filtering and maintenance unit for swimming pool.

Description

La présente invention concerne un groupe de filtration et d'entretien pour piscine.The present invention relates to a pool filtration and maintenance group.

Le document WO 04/109 042 décrit un dispositif multiplicateur de débit, et des groupes de filtration, fixes ou mobiles, comprenant un tel dispositif multiplicateur de débit. Un tel dispositif multiplicateur de débit comporte un éjecteur qui projette un courant d'eau sous pression dans un convergent suivi d'un conduit. Ce dispositif a l'avantage de donner, à la sortie du conduit, un débit très supérieur à celui qui alimente l'éjecteur. Par exemple, lorsque l'éjecteur reçoit de l'eau à une pression comprise entre 0,5 et 3 bar, le facteur multiplicateur de débit obtenu est très supérieur à 5 et atteint souvent 10.The document WO 04/109 042 discloses a flow multiplier device, and filter groups, fixed or mobile, comprising such a flow multiplier device. Such a flow multiplier device comprises an ejector which projects a flow of water under pressure in a convergent followed by a conduit. This device has the advantage of giving, at the outlet of the conduit, a much higher flow rate than that which feeds the ejector. For example, when the ejector receives water at a pressure between 0.5 and 3 bar, the flow multiplier obtained is much greater than 5 and often reaches 10.

Le document précité décrit en particulier des groupes de filtration et d'entretien de piscine qui sont mobiles, c'est-à-dire qui peuvent être retirés de la piscine, par exemple en hiver ou pour être utilisés dans d'autres piscines. Ces groupes comportent diverses caractéristiques et divers perfectionnements qui peuvent aussi être utilisés dans le groupe de filtration et d'entretien selon l'invention et qu'on ne décrit donc pas en détail dans le présent mémoire.The aforementioned document describes in particular pool filtration and maintenance groups that are mobile, that is to say that can be removed from the pool, for example in winter or for use in other pools. These groups have various features and improvements that can also be used in the filtration and maintenance group of the invention and are therefore not described in detail herein.

Dans le cadre de l'invention, on s'est rendu compte que l'utilisation des groupes mobiles de filtration et d'entretien pour piscine posait plusieurs problèmes.In the context of the invention, it has been realized that the use of mobile filtering and pool maintenance units poses several problems.

Un premier problème est que, lorsque la totalité du groupe se trouve à l'intérieur du périmètre de la piscine, il est nécessaire d'assurer l'alimentation électrique du moteur d'entraînement de la pompe, par un câble électrique qui est au contact de l'eau de la piscine.A first problem is that when the entire group is inside the perimeter of the pool, it is necessary to ensure the power supply of the drive motor of the pump, by an electric cable that is in contact water from the pool.

Bien qu'il existe des dispositifs de sécurité pour la transmission du courant électrique, ces dispositifs sont coûteux et fragiles dans le cas des appareils mobiles qui risquent de présenter un court-circuit avec l'eau.Although there are safety devices for the transmission of electric current, these devices are expensive and fragile in the case of mobile devices that may have a short circuit with water.

Il est donc souhaitable que le moteur d'entraînement de la pompe ne soit pas disposé dans le groupe lui-même, mais à l'extérieur. Dans ce cas, la piscine est munie d'un dispositif de raccordement de conduits de circulation d'eau entre le groupe mobile et les conduits d'aspiration et de refoulement respectivement. Un tel raccordement doit être réalisé à demeure, c'est-à-dire dans la structure même des murs de la piscine et doit donc soit être prévu dès l'origine, soit être installé par de coûteux travaux, ou bien il doit comporter des conduits souples qui posent des problèmes de sécurité et de vieillissement.It is therefore desirable that the drive motor of the pump is not disposed in the group itself, but outside. In this case, the pool is equipped with a device for connecting water circulation ducts between the mobile unit and the suction and discharge ducts respectively. Such a connection must be made permanently, that is to say in the very structure of the walls of the pool and must either be provided from the outset, or be installed by expensive work, or it must include flexible ducts that pose safety and aging problems.

Le document US-2002/040869 concerne un ensemble de filtration ayant deux parties juxtaposées qui sont séparées par un mur, et reliées par des conduites qui traversent le mur. Il n'existe pas, entre les deux parties, de partie intermédiaire de liaison pouvant s'encastrer dans une margelle.The document US-2002/040869 relates to a filter assembly having two juxtaposed parts which are separated by a wall, and connected by pipes which cross the wall. There is no intermediate link between the two parts that can be embedded in a lip.

Le document DE 2630315 A1 , présente un groupe de filtration et d'entretien présentant les caractéristiques du préambule de la revendication 1.The document DE 2630315 A1 , has a filtration and maintenance group having the features of the preamble of claim 1.

Un mode de réalisation de l'invention permet la solution du problème précité par réalisation d'un groupe de filtration et d'entretien pour piscine qui comporte deux parties distinctes, l'une destinée à être immergée dans l'eau de la piscine et l'autre destinée à être placée à l'extérieur du périmètre de la piscine, les deux parties étant reliées par un dispositif de liaison. Comme ce dispositif de liaison a comme seule fonction essentielle le passage de conduits entre la pompe placée dans la partie extérieure et le dispositif multiplicateur de débit placé dans la partie intérieure à la piscine, et comme le débit dans ces conduits est faible grâce à l'utilisation du multiplicateur de débit, les conduits peuvent avoir un petit diamètre et le dispositif de liaison peut avoir une faible hauteur et peut se loger directement dans la margelle que possède normalement une piscine, sans ainsi constituer d'obstacle significatif.One embodiment of the invention allows the solution of the aforementioned problem by providing a pool filtration and maintenance group which has two distinct parts, one intended to be immersed in the pool water and the other. another intended to be placed outside the perimeter of the pool, the two parts being connected by a connecting device. Since this connecting device has as sole essential function the passage of conduits between the pump placed in the outer part and the flow multiplier device placed in the inner part of the pool, and as the flow rate in these ducts is low thanks to the Using the multiplier flow, the ducts may have a small diameter and the connecting device may have a low height and can be housed directly in the lip that normally has a pool, without constituting a significant obstacle.

Plus précisément, l'invention est définie par un groupe de filtration et d'entretien pour piscine qui comprend les caractéristiques de la revendication 1. De préférence le support du groupe de filtration et d'entretien comporte deux parties distantes l'une de l'autre et raccordées par un dispositif de liaison, une première partie étant destinée à être partiellement immergée dans une piscine et supportant le dispositif multiplicateur de débit et le dispositif de filtration, et une seconde partie étant destinée à être disposée, en vue en plan, à l'extérieur du périmètre de la piscine et à transmettre de l'eau sous pression à la première partie, le dispositif de liaison étant disposé entre les première et seconde parties et comprenant des conduits d'aspiration d'eau et de refoulement d'eau sous pression.More specifically, the invention is defined by a pool filtration and maintenance group which comprises the features of claim 1. Preferably the support of the filtration and maintenance group comprises two parts distant from each other and connected by a connection device, a first part being intended to be partially immersed in a swimming pool and supporting the flow multiplier device and the filtering device, and a second part being intended to be arranged, in plan view, outside the perimeter of the pool and to transmit water under pressure to the first part, the connecting device being arranged between the first and second parts and comprising suction lines of water and pressurized water discharge.

De préférence, la seconde partie supporte la pompe et son moteur.Preferably, the second part supports the pump and its motor.

Le groupe comporte avantageusement une enveloppe qui l'entoure et qui comprend une première partie d'enveloppe correspondant à la première partie du groupe, une seconde partie d'enveloppe correspondant à la seconde partie du groupe, et une partie intermédiaire d'enveloppe correspondant au dispositif de liaison.The group advantageously comprises an envelope which surrounds it and which comprises a first envelope part corresponding to the first part of the group, a second part of envelope corresponding to the second part of the group, and an intermediate part of envelope corresponding to the connecting device.

Dans un mode de réalisation, la première partie d'enveloppe et la seconde partie d'enveloppe sont séparables. De préférence, la séparation entre la seconde partie d'enveloppe et la première partie d'enveloppe s'effectue à un emplacement qui se trouve au raccord de la partie intermédiaire d'enveloppe contenant le dispositif de liaison avec l'une des première et seconde parties d'enveloppe ou entre ces raccords.In one embodiment, the first envelope portion and the second envelope portion are separable. Preferably, the separation between the second envelope portion and the first envelope portion is at a location which is at the coupling of the intermediate envelope portion containing the connecting device with one of the first and second parts of the envelope or between these connections.

De préférence, les dimensions de la partie intermédiaire d'enveloppe sont telles que, dans la position de travail du groupe, la partie intermédiaire d'enveloppe se loge pratiquement dans le volume normalement occupé par la margelle du bord de piscine. Ainsi, la dimension de hauteur de la partie intermédiaire d'enveloppe, dans la position de travail du groupe, est avantageusement inférieure à 12 cm et de préférence de l'ordre de 5 cm.Preferably, the dimensions of the intermediate portion of the envelope are such that, in the working position of the group, the intermediate portion of envelope is substantially housed in the volume normally occupied by the edge of the pool edge. Thus, the height dimension of the intermediate portion of the envelope, in the working position of the group, is advantageously less than 12 cm and preferably of the order of 5 cm.

Il est aussi avantageux que la dimension longitudinale de la partie intermédiaire d'enveloppe, entre la première et la seconde partie d'enveloppe, soit pratiquement égale à l'épaisseur du mur formant la périphérie de la piscine, et que la dimension latérale du dispositif de liaison soit inférieure ou égale à la longueur d'un élément préfabriqué de margelle.It is also advantageous that the longitudinal dimension of the intermediate portion of the envelope, between the first and the second envelope portion, is substantially equal to the thickness of the wall forming the periphery of the swimming pool, and that the lateral dimension of the device linkage is less than or equal to the length of a prefabricated element of coping.

Dans un mode de réalisation, la seconde partie d'enveloppe est destinée à se loger dans un boîtier fixé à l'extérieur du périmètre de la piscine. Dans ce cas, un couvercle est avantageusement destiné à fermer le boîtier lorsque celui-ci ne contient pas la seconde partie d'enveloppe, le couvercle pouvant aussi occuper l'espace normalement occupé par la partie intermédiaire d'enveloppe.In one embodiment, the second envelope portion is intended to be housed in a housing attached to the outside of the perimeter of the pool. In this case, a cover is advantageously intended to close the housing when it does not contain the second envelope part, the cover can also occupy the space normally occupied by the intermediate portion of the envelope.

La première partie du groupe comporte au moins une cartouche de filtration, et, de préférence, la cartouche de filtration a une section de forme allongée, comprenant deux parties arrondies d'extrémité et deux parties intermédiaires pratiquement rectilignes.The first part of the group comprises at least one filter cartridge, and, preferably, the filter cartridge has an elongate section, comprising two rounded end portions and two substantially rectilinear intermediate portions.

De préférence, la cartouche est munie d'un support perforé destiné à empêcher sa déformation lors de la filtration de l'eau, et le support perforé est placé à l'extérieur de la cartouche. De préférence, la longueur de la section de la cartouche est supérieure ou égale au double de sa largeur mesurée entre ses parties rectilignes.Preferably, the cartridge is provided with a perforated support for preventing its deformation during filtration of the water, and the perforated support is placed outside the cartridge. Preferably, the length of the section of the cartridge is greater than or equal to twice its width measured between its rectilinear parts.

De préférence, l'enveloppe comporte une ouverture d'entrée d'eau disposée à la partie supérieure de la première partie d'enveloppe, et l'ouverture d'entrée d'eau, disposée à la fois au-dessous et au-dessus du niveau d'eau prévu dans la piscine, comporte un dispositif à volet de retenue connu dans la technique sous le nom de "skimmer".Preferably, the shell has a water inlet opening disposed at the top of the first shell portion, and the water inlet opening disposed both below and above the expected level of water in the pool, comprises a device with retaining flap known in the art under the name of "skimmer".

L'enveloppe délimite, dans sa première partie, un premier volume directement relié à l'eau de la piscine et un second volume, le second volume étant relié au premier volume uniquement à travers la cartouche de filtration, et étant relié à l'extérieur par l'intermédiaire du dispositif multiplicateur de débit, la pression dans le second volume, lorsque le groupe est en fonctionnement, étant inférieure à la pression dans le premier volume à une même hauteur.The envelope defines, in its first part, a first volume directly connected to the pool water and a second volume, the second volume being connected to the first volume only through the filtration cartridge, and being connected to the outside through the flow multiplier device, the pressure in the second volume, when the group is in operation, being less than the pressure in the first volume at the same height.

De préférence, le groupe comporte en outre un dispositif indicateur d'une grandeur représentative de la différence de pression entre les premier et second volumes de la première partie d'enveloppe. Le dispositif indicateur peut comporter une partie d'observation permettant de voir simultanément le niveau de l'eau dans le premier volume et le niveau de l'eau dans le second volume pendant le fonctionnement du groupe, la différence entre les deux niveaux indiquant la différence de pression entre les deux volumes.Preferably, the group further comprises an indicating device of a magnitude representative of the pressure difference between the first and second volumes of the first envelope portion. The indicator device may comprise an observation part making it possible to see simultaneously the level of the water in the first volume and the level of the water in the second volume during the operation of the group, the difference between the two levels indicating the difference pressure between the two volumes.

De préférence, la partie de conduit d'alimentation d'éjecteur disposée dans la première partie d'enveloppe comporte une dérivation rejoignant l'extérieur de l'enveloppe et une vanne qui peut être commandée depuis l'extérieur de l'enveloppe afin qu'une partie au moins du débit de refoulement de la pompe puisse circuler dans la dérivation pour l'alimentation d'un accessoire.Preferably, the ejector supply duct portion disposed in the first casing portion has a shunt joining the outside of the casing and a valve that can be controlled from outside the casing so that at least a portion of the discharge flow of the pump can flow in the branch for the supply of an accessory.

En outre, il peut être avantageux que la première partie d'enveloppe possède au moins un dispositif d'éclairage électrique, et que le câble au moins d'alimentation électrique du dispositif d'éclairage au moins rejoigne la seconde partie d'enveloppe en passant dans la partie intermédiaire d'enveloppe.In addition, it may be advantageous for the first envelope portion to have at least one electrical lighting device, and for the at least one power supply cable of the lighting device to at least join the second envelope portion while passing. in the middle part of the envelope.

Ainsi, la combinaison de la séparation des éléments du groupe en deux parties, et leur liaison par un élément de faible épaisseur, permet un accroissement de la sécurité et des possibilités d'intégration du groupe aux piscines, avec une réduction de l'encombrement apparent.Thus, the combination of the separation of the elements of the group into two parts, and their connection by a thin element, makes it possible to increase the safety and the possibilities of integration of the group with the pools, with a reduction in the apparent bulkiness. .

Un second problème posé est lié au fait que les groupes de filtration et d'entretien de piscine qui sont mobiles doivent être aussi légers que possible pour faciliter leur mise en place, leur enlèvement et leur transport. Il est donc souhaitable d'une part de réduire le poids et la dimension des dispositifs utilisés, et d'autre part de combiner des fonctions dans des dispositifs dont le poids est inférieur à celui des éléments qu'ils remplacent.A second problem is related to the fact that mobile filtration and pool maintenance units should be as light as possible to facilitate their placement, removal and transportation. It is therefore desirable on the one hand to reduce the weight and the size of the devices used, and on the other hand to combine functions in devices whose weight is less than that of the elements they replace.

Selon la solution de ce second problème, une partie seulement du débit filtré passe dans le panier de retenue qui crée une perte de charge, le reste parvenant directement à la cartouche par une orifice de la partie inférieure de l'enveloppe.According to the solution of this second problem, only a portion of the filtered flow passes into the retaining basket which creates a pressure drop, the remainder coming directly to the cartridge through an orifice of the lower part of the envelope.

De préférence, le groupe comporte un panier de retenue de matières contaminantes, destiné à être disposé dans un passage formé entre une ouverture d'entrée d'eau de piscine et une cartouche de filtration, le panier présentant une force de flottaison positive, même lorsqu'il contient une quantité nominale de matières contaminantes, de sorte qu'il a naturellement tendance à monter dans l'eau stagnante, et, lorsqu'il est dépourvu de toute matière contaminante et se trouve dans le passage en présence d'un débit nominal d'eau de la piscine, il crée une perte de charge au moins égale à sa force de flottaison, de sorte qu'il a tendance à descendre.Preferably, the group comprises a contaminant holding basket, intended to be disposed in a passage formed between a pool water inlet opening and a filter cartridge, the basket having a positive flotation force, even when it contains a nominal quantity of contaminating material, so that it naturally has a tendency to rise in standing water, and, when it is free of any contaminating material and is in the passage in the presence of a nominal flow of pool water, it creates a pressure drop at least equal to its buoyancy, so that it tends to go down.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre d'exemples de réalisation, faite en référence aux dessins annexés sur lesquels :

  • la figure 1 est une vue en perspective d'une partie de mur de piscine équipée d'une margelle et d'un groupe de filtration et d'entretien selon l'invention ;
  • la figure 2 est une vue en perspective du groupe de filtration représenté sur la figure 1, mais vu de l'autre côté ;
  • la figure 3 est une vue en perspective de la partie représentée sur la figure 1 mais vue de l'extérieur de la piscine et après enlèvement du groupe de filtration et d'entretien ;
  • la figure 4 est un schéma d'un groupe de filtration et d'entretien pour piscine selon l'invention, permettant la description de son principe de fonctionnement ;
  • la figure 5 est une vue en perspective avec des parties arrachées représentant la disposition relative des principaux éléments d'un groupe de type double ;
  • la figure 6 est une vue en perspective d'un multiplicateur de débit représenté sur la figure 5 ;
  • la figure 7 est une vue éclatée en perspective d'une cartouche de filtration et du panier associé ;
  • la figure 8 est une vue en perspective de dessus du panier de la figure 7 ;
  • la figure 9 est une coupe en perspective d'une partie d'enveloppe ayant une cartouche de filtration et un panier associé ; et
  • la figure 10 est une coupe analogue à la figure 9, mais avec une autre position du panier.
  • Les figures 1 à 3 représentent un groupe de filtration et d'entretien pour piscine dans un mode de réalisation de l'invention.
Other characteristics and advantages of the invention will be better understood on reading the following description of embodiments, made with reference to the appended drawings in which:
  • the figure 1 is a perspective view of a pool wall portion equipped with a lip and a filtration and maintenance group according to the invention;
  • the figure 2 is a perspective view of the filtration group shown on the figure 1 but seen from the other side;
  • the figure 3 is a perspective view of the part shown on the figure 1 but from the outside of the pool and after removal of the filtration and maintenance unit;
  • the figure 4 is a diagram of a pool filtration and maintenance group according to the invention, allowing the description of its operating principle;
  • the figure 5 is a perspective view with torn portions showing the relative disposition of the main elements of a double-type group;
  • the figure 6 is a perspective view of a flow multiplier shown on the figure 5 ;
  • the figure 7 is an exploded perspective view of a filter cartridge and associated basket;
  • the figure 8 is a perspective view from above of the basket of the figure 7 ;
  • the figure 9 is a perspective section of an envelope portion having a filter cartridge and associated basket; and
  • the figure 10 is a cut similar to the figure 9 but with another basket position.
  • The Figures 1 to 3 represent a pool filtration and maintenance group in one embodiment of the invention.

Un mur 10 délimite le périmètre d'une piscine et sa partie supérieure est surmontée d'une margelle, représentée sous forme d'une margelle à bec de sécurité. L'ensemble du groupe porte la référence 14 et comprend une enveloppe qui comporte une première partie d'enveloppe 16 contenant une première partie du groupe et destinée à être immergée pour sa plus grande partie, et une seconde partie d'enveloppe 18 qui contient une seconde partie du groupe de filtration. Les deux parties d'enveloppe sont reliées par une partie intermédiaire d'enveloppe 20 qui contient un dispositif de liaison.A wall 10 delimits the perimeter of a swimming pool and its upper part is surmounted by a coping, represented in the form of a lip with safety nozzle. The whole of the group bears the reference 14 and comprises an envelope which comprises a first envelope portion 16 containing a first portion of the group and intended to be immersed for the greater part, and a second envelope portion 18 which contains a second part of the filtration group. The two envelope parts are connected by an intermediate envelope portion 20 which contains a connecting device.

Comme l'indique la figure 1, la seconde partie de l'enveloppe du groupe selon un mode de réalisation de l'invention qui est représenté seul sur la figure 2, se loge dans un boîtier 22 disposé à l'extérieur du périmètre de la piscine. La première partie d'enveloppe 16 comporte, à sa partie avant, une ouverture 24 d'entrée d'eau, destinée à être partiellement immergée, deux sorties 26 d'eau et, à titre accessoire et purement éventuel, deux dispositifs d'éclairage 28. La figure 2 représente aussi une sortie d'eau sous pression 30 munie d'un dispositif de commande d'une vanne associée.As the figure 1 , the second part of the group casing according to one embodiment of the invention which is represented alone on the figure 2 , is housed in a housing 22 disposed outside the perimeter of the pool. The first envelope portion 16 comprises, at its front part, a water inlet opening 24 intended to be partially immersed, two water outlets 26 and, as an accessory and purely possible accessory, two lighting devices. 28. The figure 2 also represents a pressurized water outlet 30 provided with a control device of an associated valve.

Après cette description de l'aspect extérieur du groupe de filtration, on considère son principe de fonctionnement. Bien que la figure 4 soit un schéma de principe du groupe, on a utilisé les mêmes références numériques que sur les figures 1 à 3 pour désigner la première partie d'enveloppe 16 de la première partie du groupe, la seconde partie d'enveloppe 18 et la partie intermédiaire d'enveloppe 20 contenant le dispositif de liaison, ainsi que les références 24, 26 et 30 pour désigner une entrée d'eau, une sortie d'eau et une prise d'eau sous pression. Les deux traits mixtes 32 et 34 indiquent conceptuellement la limite entre la première partie du groupe et le dispositif de liaison d'une part et entre le dispositif de liaison et la seconde partie de groupe d'autre part.After this description of the external appearance of the filtration unit, its operating principle is considered. Although the figure 4 a diagram of the group, the same numerical references were used as on the Figures 1 to 3 to designate the first casing part 16 of the first part of the group, the second casing part 18 and the casing intermediate part 20 containing the connecting device, as well as the references 24, 26 and 30 to designate an inlet of water, a water outlet and a water intake under pressure. The two dashed lines 32 and 34 conceptually indicate the boundary between the first part of the group and the connecting device on the one hand and between the connecting device and the second group part on the other hand.

On considère maintenant plus en détail la première partie du groupe disposée dans la première partie d'enveloppe 16. Cette partie d'enveloppe 16 a au moins une ouverture 24 partiellement immergée, c'est-à-dire que le niveau d'eau normal 36 de la piscine se trouve entre le haut et le bas de l'ouverture 24. L'eau peut pénétrer librement par l'ouverture 24 et passe dans un panier 38 et à l'intérieur d'une cartouche 40. Celle-ci est maintenue extérieurement par un support perforé 42. En outre, la partie inférieure de la cartouche est reliée par un conduit 44, qui débouche à un orifice inférieur 46, avec l'eau de la piscine très au-dessous de la surface.We now consider in more detail the first part of the group disposed in the first envelope portion 16. This envelope portion 16 has at least one opening 24 partially submerged, that is to say that the normal water level 36 of the pool is between the top and bottom of the opening 24. The water can enter freely through the opening 24 and passes into a basket 38 and inside a cartridge 40. This is externally held by a perforated support 42. In addition, the lower portion of the cartridge is connected by a conduit 44, which opens at a lower orifice 46, with the pool water well below the surface.

Les dimensions relatives de l'ouverture 24, de la cartouche 30, du conduit 44 et de l'ouverture 46 sont telles que, de préférence, un quart environ du débit global entrant dans la cartouche passe par le conduit inférieur 44, et les trois-quarts par le panier 38. On note que cette disposition permet la retenue par le panier 38 de toutes les parties contaminantes flottantes, alors que seules des impuretés fines pénètrent par le conduit inférieur 44.The relative dimensions of the opening 24, the cartridge 30, the duct 44 and the opening 46 are such that, preferably, about one fourth of the overall flow entering the cartridge passes through the lower duct 44, and the three It is noted that this arrangement allows the retention by the basket 38 of all the floating contaminating parts, whereas only fine impurities penetrate through the lower conduit 44.

Une cloison 48 délimite, à l'intérieur de la première partie d'enveloppe 16 et en coopération avec la cartouche et le conduit 44, un premier volume auquel a accès librement l'eau de la piscine, et un second volume placé à l'extérieur de la cartouche et à l'intérieur de la partie d'enveloppe 16 au-dessous de la cloison 48 ; ce second volume ne communique avec le premier volume qu'à travers la cartouche 40 et avec le volume extérieur que par l'orifice 26 de sortie d'eau du multiplicateur de débit.A partition 48 delimits, inside the first casing portion 16 and in cooperation with the cartridge and the duct 44, a first volume to which the water of the swimming pool freely accesses, and a second volume placed at the outside the cartridge and inside the envelope portion 16 below the partition 48; this second volume communicates with the first volume only through the cartridge 40 and with the external volume as the orifice 26 of the water outlet of the flow multiplier.

Entre le premier volume et le second volume, il existe une différence de pression correspondant à la perte de charge dans la cartouche 40. Il peut donc être avantageux de raccorder un tronçon de conduit 50 à la cloison 48, ce tronçon de conduit étant en communication par un orifice 52 avec le second volume et débouchant au-dessus du niveau d'eau 36 de manière qu'un observateur puisse voir simultanément le niveau d'eau 36 et le niveau d'eau 54 dans le conduit pour déterminer ainsi la différence de pression entre les deux volumes, et donc la perte de charge dans la cartouche. Ce dispositif très simple permet de contrôler le degré de bouchage de la cartouche 40 d'une manière très simple.Between the first volume and the second volume, there is a pressure difference corresponding to the pressure drop in the cartridge 40. It may therefore be advantageous to connect a duct section 50 to the partition 48, this duct section being in communication through an orifice 52 with the second volume and opening above the water level 36 so that an observer can simultaneously see the water level 36 and the water level 54 in the conduit to thereby determine the difference in pressure between the two volumes, and therefore the pressure drop in the cartridge. This very simple device makes it possible to control the degree of clogging of the cartridge 40 in a very simple manner.

Bien entendu, la différence de niveau peut être transformée en un signal compréhensible par un observateur. Par exemple, l'eau du conduit 50 peut porter un flotteur qui, suivant le niveau 54, fait apparaître une couleur passant du vert au jaune puis au rouge lorsque le niveau descend. Cette couleur peut être par exemple appliquée directement à la paroi du conduit 50. Bien d'autres dispositifs peuvent donner une indication analogue.Of course, the difference in level can be transformed into a signal understandable by an observer. For example, the water of the conduit 50 may carry a float which, following the level 54, shows a color changing from green to yellow then red when the level goes down. This color may for example be applied directly to the wall of the conduit 50. Many other devices may give an analogous indication.

Le dispositif multiplicateur de débit lui-même comprend une entrée d'aspiration 56 d'eau disposée dans le second volume, et reliée par un conduit 58 à la pompe 60. Un conduit 62 de refoulement de la pompe 60 revient vers la première partie du groupe pour alimenter l'éjecteur 64 du multiplicateur de débit 66. Dans sa partie contenue dans la première partie d'enveloppe 16, le conduit 62 comporte une vanne 66 permettant, par sa commande 68 accessible depuis l'extérieur de l'enveloppe, de transmettre une partie ou la totalité du débit de la pompe 60 à une sortie 30 ; cette eau peut être utilisée par exemple pour alimenter un balai, un robot de nettoyage, etc.The flow multiplier device itself comprises a suction inlet 56 of water disposed in the second volume, and connected by a duct 58 to the pump 60. A discharge duct 62 of the pump 60 returns to the first part of the pump. group for supplying the ejector 64 of the flow multiplier 66. In its portion contained in the first casing portion 16, the duct 62 comprises a valve 66 allowing, by its control 68 accessible from outside the casing, to transmitting some or all of the flow of the pump 60 to an outlet 30; this water can be used for example to power a broom, a cleaning robot, etc.

Le dispositif multiplicateur de débit 66 qui est alimenté par l'éjecteur 64 placé à l'extrémité du conduit 62 transmet un débit élevé en surpression à la sortie 26, en formant ainsi un courant de brassage puissant et constant.The flow multiplier device 66 which is powered by the ejector 64 placed at the end of the conduit 62 transmits a high rate of overpressure to the outlet 26, thereby forming a strong and constant brewing current.

Dans un exemple de réalisation, une pompe 60 consommant 300 W donne un débit d'environ 2 m3/h à une pression de 1,8 bar. Le multiplicateur de débit, recevant ce débit de 2 m3/h, évacue un débit de 16 m3/h par la sortie 26. Ce débit correspond à des débits de 12 m3/h par l'ouverture supérieure 24 et de 4 m3/h par l'ouverture inférieure 46. Dans cet exemple, la partie 16 a une hauteur d'environ 0,8 m, une largeur d'environ 0,4 m et une profondeur inférieure à 0,2 m. Comme les conduits 58 et 62 ne transmettent qu'un débit de 2 m3/h, leur diamètre peut être de quelques centimètres seulement, si bien que la partie intermédiaire d'enveloppe qui entoure le dispositif de liaison constitué par des parties des conduits 58 et 62, peut avoir une hauteur de quelques centimètres seulement, comme indiqué sur la figure 1 sur laquelle on note que le dispositif de liaison a une épaisseur qui est même inférieure à celle du bec de sécurité de la margelle représentée.In an exemplary embodiment, a pump 300 consuming 300 W gives a flow rate of about 2 m 3 / h at a pressure of 1.8 bar. The flow multiplier, receiving this flow rate of 2 m 3 / h, discharges a flow rate of 16 m 3 / h through the outlet 26. This flow corresponds to flows of 12 m 3 / h through the upper opening 24 and 4 m 3 / h through the lower opening 46. In this example, the portion 16 has a height of about 0.8 m, a width of about 0.4 m and a depth of less than 0.2 m. Since the ducts 58 and 62 transmit only a flow rate of 2 m 3 / h, their diameter may be only a few centimeters, so that the intermediate portion of the envelope which surrounds the connecting device consisting of parts of the ducts 58 and 62, may have a height of only a few centimeters, as shown on the figure 1 on which it is noted that the connecting device has a thickness which is even lower than that of the safety tip of the coping shown.

La figure 5 représente les éléments principaux placés à l'intérieur de la partie d'enveloppe 16 représentée sur les figurés 1 à 3 ; elle correspond à un système double, par rapport au système simple qu'on vient de décrire en référence à la figure 4. La figure 5 représente la disposition de deux dispositifs multiplicateurs de débit 66 ayant des sorties 26, de part et d'autre de deux cartouches 40 juxtaposées dans la partie centrale de la partie d'enveloppe 16.The figure 5 represents the main elements placed inside the envelope portion 16 shown in FIGS. 1 to 3; it corresponds to a double system, compared to the simple system just described with reference to the figure 4 . The figure 5 represents the arrangement of two flow multiplier devices 66 having outlets 26, on either side of two cartridges 40 juxtaposed in the central part of the envelope part 16.

La figure 6 représente un dispositif multiplicateur de débit. L'éjecteur 64 est tenu au centre d'un convergent 72 par des ailettes 70, et la sortie du convergent 72 est raccordée à un tronçon de conduit 74 de diamètre constant, puis à un divergent 76 qui transmet le courant formé à un conduit coudé 78. Ce dernier évacue le courant formé par la sortie 26.The figure 6 represents a flow multiplier device. The ejector 64 is held in the center of a convergent 72 by fins 70, and the output of the convergent 72 is connected to a pipe section 74 of constant diameter, then to a divergent 76 which transmits the current formed to an elbow pipe 78. This last evacuates the current formed by the exit 26.

Dans le mode de réalisation des figures 1 à 3, les sorties 26 des deux multiplicateurs de débit 66 sont tournées vers l'intérieur de la piscine, et les ouvertures 24 d'entrée d'eau sont tournées vers les côtés de la partie d'enveloppe 16. La disposition peut être inverse. Ainsi, les sorties 26 peuvent être placées sur les côtés et les ouvertures peuvent être disposées à l'avant, et peuvent même être formées par une seule ouverture. Bien que toutes les ouvertures d'entrée 24 et de sortie 26 puissent être formées à une même face, cette caractéristique n'est pas avantageuse car les courants provenant des sorties 26 d'une part et allant vers les ouvertures 24 d'autre part ont alors des sens opposés. Un inconvénient est qu'une partie de l'eau filtrée peut revenir immédiatement pour être à nouveau filtrée. Il est donc souhaitable que ces courants soient séparés, c'est-à-dire transmis à des orifices formés à des faces différentes.In the embodiment of Figures 1 to 3 , the outlets 26 of the two flow multipliers 66 are turned towards the inside of the pool, and the water inlet openings 24 are turned towards the sides of the part 16. The arrangement may be the opposite. Thus, the outlets 26 can be placed on the sides and the openings can be arranged at the front, and can even be formed by a single opening. Although all the inlet 24 and outlet openings 26 can be formed on the same face, this characteristic is not advantageous because the currents coming from the outlets 26 on the one hand and going towards the openings 24 on the other hand have then opposite senses. A disadvantage is that some of the filtered water can come back immediately to be filtered again. It is therefore desirable that these currents be separated, that is to say, transmitted to orifices formed on different faces.

Bien entendu, la disposition des dispositifs multiplicateurs de débit n'est qu'illustrative. L'intérieur de la partie d'enveloppe 16 peut être agencé différemment, avec par exemple des multiplicateurs de débit disposés horizontalement, par exemple à la partie inférieure de la première partie d'enveloppe.Of course, the arrangement of the multiplier devices is only illustrative. The interior of the envelope portion 16 may be arranged differently, for example with flow multipliers arranged horizontally, for example at the bottom of the first envelope portion.

La figure 7 représente une cartouche 40 et son panier associé 38. La cartouche 40 est représentée sous forme aplatie, avec deux extrémités en demi-cercle et deux parties intermédiaires rectilignes. Cette disposition aplatie permet, comme l'indique la figure 5, de placer deux cartouches l'une à côté de l'autre et d'obtenir une surface de filtration plus importante que celle d'une seule cartouche cylindrique de section circulaire occupant un même volume.The figure 7 represents a cartridge 40 and its associated basket 38. The cartridge 40 is shown in flattened form, with two ends in a semi-circle and two rectilinear intermediate parts. This flattened arrangement allows, as indicated by figure 5 , place two cartridges next to each other and obtain a larger filtration area than that of a single cylindrical cartridge of circular section occupying the same volume.

Par exemple, la cartouche peut être formée d'un non-tissé plissé ayant des plis d'une longueur de 21 mm. La cartouche peut avoir une longueur de 60 cm, et sa section peut avoir une longueur de 21 cm et une largeur de 9 cm environ. Il est ainsi possible de disposer deux cartouches dans l'espace qui serait occupé par une seule cartouche cylindrique de section circulaire ayant un diamètre de 21 cm. Une telle cartouche donne une surface de filtration de 3,6 m2, si bien que les deux cartouches représentées sur la figure 5 donnent une surface de filtration de 7,2 m2.For example, the cartridge may be formed of a pleated nonwoven having pleats with a length of 21 mm. The cartridge may have a length of 60 cm, and its section may have a length of 21 cm and a width of 9 cm. It is thus possible to have two cartridges in space which would be occupied by a single cylindrical cartridge of circular section having a diameter of 21 cm. Such a cartridge gives a filtration area of 3.6 m 2 , so that the two cartridges represented on the figure 5 give a filtration area of 7.2 m 2 .

Dans une piscine, les matières contaminantes diverses telles que feuilles, pierres, etc. soit flottent à la surface, soit tombent au fond. Lorsqu'elles flottent, la circulation assurée dans la piscine par le groupe de filtration les ramène vers l'ouverture d'entrée du groupe, habituellement munie d'un skimmer. Pour que ces matières contaminantes ne puissent atteindre la cartouche qui serait rapidement encrassée, elles sont arrêtées par un panier de retenue qui doit être vidé périodiquement. Lorsque la circulation est interrompue, ces matières contaminantes ont tendance à remonter vers la surface de l'eau. Si elles n'étaient pas arrêtées par le volet de retenue du skimmer, elles pourraient revenir dans la piscine par l'ouverture d'entrée d'eau. Si le groupe comporte plusieurs ouvertures d'entrée d'eau au niveau de la surface, comme représenté sur les figures 1 et 2, il doit comporter un skimmer par ouverture.In a pool, various contaminating materials such as leaves, stones, etc. either float on the surface or fall to the bottom. When they float, the circulation ensured in the pool by the filtration group brings them back to the entrance opening of the group, usually equipped with a skimmer. In order for these contaminants to reach the cartridge that would be quickly fouled, they are stopped by a basket that must be emptied periodically. When traffic is interrupted, these contaminants tend to rise to the surface of the water. If they were not stopped by the skimmer retainer, they could return to the pool through the water inlet opening. If the group has a plurality of water inlet openings at the surface, as shown in the Figures 1 and 2 it must have a skimmer per opening.

Selon l'invention, on peut supprimer le volet de retenue de skimmer, et simplifier ainsi le groupe de filtration. Dans une première variante, décrite en référence aux figures 7 et 8, le panier a un couvercle qui est ouvert pendant le fonctionnement du groupe de filtration, mais se ferme lorsque le groupe s'arrête. Dans une seconde variante, le panier remonte afin que son ouverture d'entrée soit au-dessus du niveau de la surface de l'eau de la piscine dès que le groupe de filtration s'arrête, et empêche ainsi le retour vers la piscine.According to the invention, the skimmer retaining flap can be removed, thereby simplifying the filtration unit. In a first variant, described with reference to Figures 7 and 8 , the basket has a lid that is open during the operation of the filter group, but closes when the group stops. In a second variant, the basket goes up so that its inlet opening is above the level of the water surface of the pool as soon as the filtration unit stops, and thus prevents the return to the pool.

Dans la première variante représentée sur les figures 7 et 8, le panier 38 possède un corps 84 qui délimite des ouvertures de côté de l'ordre de 1 à 5 mm : les matières contaminantes sont retenues par le panier et seules les fines particules atteignent la cartouche. Comme le panier 38 doit être nettoyé lorsqu'il a accumulé suffisamment de matières contaminantes, il peut être extrait par une poignée 86.In the first variant shown on the Figures 7 and 8 , the basket 38 has a body 84 which defines side openings of the order of 1 to 5 mm: the contaminating materials are retained by the basket and only the fine particles reach the cartridge. Basket 38 must be cleaned when it has accumulated enough contaminating material, it can be extracted by a handle 86.

On note la présence d'un couvercle 88 qui ferme l'ouverture supérieure du panier lorsque celui-ci n'est pas en cours de filtration, et qui joue ainsi le rôle du volet de retenue du skimmer.Note the presence of a lid 88 which closes the upper opening of the basket when it is not being filtered, and thus plays the role of the skimmer retaining flap.

Lorsque le panier est placé sur une cartouche et qu'un courant d'eau circule, la dépression créée ouvre le couvercle 88 si bien que l'eau et les matières contaminantes peuvent pénétrer librement dans le corps 84. Par contre, dès que le fonctionnement du groupe de filtration cesse, le couvercle 88 reprend sa position de fermeture et empêche les matières contaminantes de remonter dans l'eau placée au-dessus de la cartouche, puis dans la piscine.When the basket is placed on a cartridge and a stream of water circulates, the created depression opens the lid 88 so that water and contaminating materials can freely enter the body 84. On the other hand, as soon as the operation the filtration unit ceases, the cover 88 resumes its closed position and prevents contaminating materials from rising in the water placed above the cartridge, and then in the pool.

Les figures 9 et 10 représentent la seconde variante de panier qui est particulièrement avantageuse parce qu'elle est très simple.The Figures 9 and 10 represent the second basket variant which is particularly advantageous because it is very simple.

Une cartouche 92 représentée sous forme d'un cylindre de section circulaire est disposée dans la partie d'enveloppe 16 qui comporte une ouverture d'entrée d'eau 24 près de sa partie supérieure et un conduit 44, débouchant par l'orifice 46, à sa partie inférieure. Dans l'exemple représenté, un lest 93 maintient la cartouche contre le fond de l'enveloppe, afin qu'elle reste en position et n'ait pas tendance à remonter. Cependant, elle peut être facilement saisie par sa partie supérieure pour pouvoir être sortie, par exemple pour être nettoyée.A cartridge 92 shown in the form of a cylinder of circular section is disposed in the envelope portion 16 which has a water inlet opening 24 near its upper part and a conduit 44, opening through the orifice 46, at its lower part. In the example shown, a ballast 93 holds the cartridge against the bottom of the envelope, so that it remains in position and does not tend to rise. However, it can be easily grasped by its upper part to be released, for example to be cleaned.

Un panier 92 de retenue de matières contaminantes, par exemple formé de matière plastique moulée, est disposé dans le passage reliant l'ouverture 24 d'entrée d'eau de piscine à la cartouche de filtration 92. Ce panier 94 possède un flasque supérieur 96 qui dégage largement son entrée supérieure et peut s'appliquer contre le bord supérieur de la cartouche 92, d'une manière suffisamment étanche pour que des matières contaminantes ne puissent pas le contourner pour parvenir à la cartouche 92 sans passer dans le panier 94. Ce panier 94 possède aussi un fond fermé, du côté opposé au flasque, qui est muni d'un organe de flottaison 98. Cet organe de flottaison peut comprendre une chambre étanche, éventuellement munie d'une mousse de matière plastique, ou un élément d'une mousse de matière plastique à cellules fermées, ou tout autre organe de flottaison.A basket 92 for retaining contaminants, for example formed of molded plastic material, is disposed in the passage connecting the pool water inlet opening 24 to the filter cartridge 92. This basket 94 has an upper flange 96 which largely disengages its upper inlet and can be applied against the upper edge of the cartridge 92, in a sufficiently sealed manner so that contaminating materials can not bypass it to reach the cartridge 92 without passing into the basket 94. basket 94 also has a closed bottom, the side opposite the flange, which is provided with a flotation member 98. flotation member may comprise a sealed chamber, optionally provided with a plastic foam, or a member of a closed-cell plastic foam, or any other flotation device.

Ainsi, le panier présente une force de flottaison positive, même lorsqu'il contient une quantité nominale de matières contaminantes, de sorte qu'il a naturellement tendance à monter dans l'eau stagnante. En outre, lorsqu'il est dépourvu de toute matière contaminante et se trouve dans le passage en présence d'un débit nominal d'eau de la piscine, il crée une perte de charge au moins égale à sa force de flottaison, de sorte qu'il a tendance à descendre. Ce débit nominal est normalement compris entre 2 et 30 m3/h, et de préférence entre 5 et 15 m3/h.Thus, the basket has a positive flotation force, even when it contains a nominal amount of contaminating material, so that it has a natural tendency to rise in standing water. In addition, when it is devoid of any contaminating material and is in the passage in the presence of a nominal flow of water from the pool, it creates a pressure drop at least equal to its flotation force, so that he has a tendency to descend. This nominal flow rate is normally between 2 and 30 m 3 / h, and preferably between 5 and 15 m 3 / h.

Lorsque le groupe de filtration est en fonctionnement, le flasque 96 est au contact de la partie supérieure de la cartouche 92 d'une manière suffisamment étanche pour que des matières contaminantes entrant par l'ouverture 24 ne puissent pas parvenir à la cartouche 92 sans passer dans le panier 94. Lorsque le groupe de filtration cesse de fonctionner, le panier 94 remonte et prend la position de la figure 10 dans laquelle le flasque 96 est au-dessus du niveau de la surface de l'eau dans la piscine et empêche les matières contaminantes de retourner vers la piscine.When the filtration unit is in operation, the flange 96 is in contact with the upper portion of the cartridge 92 in a sufficiently sealed manner that contaminating material entering through the opening 24 can not reach the cartridge 92 without passing through. in the basket 94. When the filtration unit stops operating, the basket 94 rises and takes the position of the figure 10 wherein the flange 96 is above the level of the water surface in the pool and prevents contaminating materials from returning to the pool.

Ce mode de réalisation est particulièrement efficace dans le mode de réalisation représenté sur les figures 9 et 10, dans lequel seule la partie de l'eau qui provient du voisinage de la surface, et peut donc être chargée de matières contaminantes, passe dans le panier. Le reste de l'eau à filtrer, prélevé directement par le conduit 44 entre le fond et la surface de la piscine, ne subit donc pas la perte de charge au passage dans le panier. Il est avantageux de régler le rapport des deux courants de manière que d'une part le courant passant dans le panier 94 suffise pour entraîner les matières contaminantes flottant à la surface, et d'autre part le courant passant par le conduit inférieur 44 permette une réduction de la perte de charge globale. Ce rapport peut être facilement réglé par le diamètre et la longueur du conduit 44, ou de toute autre manière.This embodiment is particularly effective in the embodiment shown in the Figures 9 and 10 , in which only the part of the water that comes from the vicinity of the surface, and can therefore be loaded with contaminating material, goes into the basket. The remainder of the water to be filtered, taken directly through the conduit 44 between the bottom and the surface of the pool, therefore does not undergo pressure drop when passing through the basket. It is advantageous to adjust the ratio of the two currents so that on the one hand the current flowing in the basket 94 is sufficient to entrain the contaminating materials floating on the surface, and on the other hand the current flowing through the lower duct 44 allows a reduction of the overall pressure drop. This ratio can be easily adjusted by the diameter and length of the conduit 44, or in any other way.

Bien qu'on ait représenté l'organe de flottaison, qui donne la plus grande partie de sa force de flottaison au panier, à proximité du fond de celui-ci, il peut aussi être adjacent au flasque du panier.Although there is shown the flotation device, which gives most of its flotation force to the basket, near the bottom thereof, it may also be adjacent to the flange of the basket.

On a décrit un mode de réalisation dans lequel le multiplicateur de débit et le dispositif de filtration sont placés dans une première partie d'enveloppe, la pompe et son moteur sont placés dans une seconde partie d'enveloppe et les deux parties d'enveloppe sont reliées par une partie intermédiaire contenant un dispositif de liaison de faible hauteur, les trois parties d'enveloppe étant solidaires et formant une seule enveloppe.An embodiment has been described in which the flow multiplier and the filtration device are placed in a first casing part, the pump and its motor are placed in a second casing part and the two casing parts are connected by an intermediate portion containing a low-height connecting device, the three envelope parts being integral and forming a single envelope.

Cependant, il est possible de prévoir une séparation, soit entre la première partie d'enveloppe et la partie intermédiaire, soit plutôt entre la seconde partie d'enveloppe et la partie intermédiaire, ou même à l'intérieur de la partie intermédiaire. Bien entendu, dans le plan de séparation, il est nécessaire de prévoir des raccords rapides permettant la continuité des conduits 58 et 62.However, it is possible to provide a separation, either between the first shell portion and the intermediate portion, or rather between the second shell portion and the intermediate portion, or even within the intermediate portion. Of course, in the separation plane, it is necessary to provide quick connectors allowing the continuity of conduits 58 and 62.

Les conduits 58 et 62 peuvent être multiples. Ainsi, dans le mode de réalisation représenté sur la figure 5 dans lequel il existe deux dispositifs multiplicateurs de débit, il est souhaitable que deux conduits 62 de refoulement partent de la pompe 60 afin que, dans le dispositif de liaison placé dans la partie intermédiaire de l'enveloppe, le doublement de débit ne provoque pas une augmentation de diamètre de conduit, et donc de hauteur de la partie intermédiaire, comme dans le cas où il n'existerait qu'un conduit. Cette remarque s'applique aussi au conduit 58 d'aspiration.The conduits 58 and 62 may be multiple. Thus, in the embodiment shown on the figure 5 in which there are two flow multiplier devices, it is desirable for two discharge ducts 62 to leave the pump 60 so that, in the connecting device placed in the intermediate portion of the envelope, the flow doubling does not cause a increasing the diameter of the duct, and therefore the height of the intermediate portion, as in the case where there is only one duct. This remark also applies to the suction duct 58.

La figure 3 représente un boîtier extérieur 22 ; il apparaît que, lorsque le groupe de filtration a été retiré, il est souhaitable qu'un couvercle ferme le boîtier 22 pour empêcher l'entrée de matières étrangères, ce couvercle pouvant aussi avantageusement remplir l'espace prévu dans la margelle pour le passage de la partie intermédiaire d'enveloppe.The figure 3 represents an outer casing 22; it appears that, when the filtration unit has been removed, it is desirable for a lid to close the housing 22 to prevent the entry of foreign matter, which cover can also advantageously fill the space provided in the border for the passage of the intermediate part of the envelope.

Dans un mode de réalisation de l'invention, le boîtier 22 peut être simplement utilisé pour le raccordement du groupe de filtration et d'entretien à un circuit d'aspiration-refoulement, par l'intermédiaire du raccord rapide, ce circuit pouvant être placé à distance, et comprenant une pompe et un moteur placés par exemple dans un garage voisin. La seconde partie d'enveloppe ne contient plus de pompe, mais seulement des raccords d'aspiration et de refoulement. Dans ce cas, il est souhaitable que le groupe de filtration et d'entretien comportent un premier ensemble qui comprend la première partie du groupe et la partie intermédiaire, alors que la seconde partie du groupe (pompe et moteur) est à distance.In one embodiment of the invention, the housing 22 can be simply used for connecting the filtration and maintenance unit to a suction-discharge circuit, via the quick coupling, this circuit can be placed remote, and including a pump and a motor placed for example in a nearby garage. The second casing portion no longer contains a pump, but only suction and discharge connections. In this case, it is desirable for the filtration and maintenance group to have a first set which includes the first part of the group and the intermediate part, while the second part of the group (pump and motor) is at a distance.

Il est en outre souhaitable de munir le groupe de poignées (non représentées) facilitant sa manipulation, surtout lors de sa sortie de la piscine. Bien que l'ensemble du groupe vide soit léger, notamment lorsque l'enveloppe est formée d'une polyoléfine moulée par soufflage, il faut noter que, lorsque le groupe est retiré d'une piscine, il est rempli d'eau. Il doit donc être retiré progressivement afin que l'eau puisse s'échapper. A cet effet, il est possible d'ajouter un clapet à la partie inférieure de l'enveloppe. Cependant, étant donné la présence de l'orifice inférieur de sortie 46, l'eau peut s'échapper, soit directement, soit en traversant la cartouche en sens inverse de son sens normal. Dans ce cas, il est souhaitable que la longueur du conduit 44 soit aussi faible que possible.It is further desirable to provide the group of handles (not shown) facilitating its handling, especially when leaving the pool. Although the entire empty group is light, especially when the envelope is formed of a polyolefin blow molded, it should be noted that when the group is removed from a pool, it is filled with water. It must be removed gradually so that water can escape. For this purpose, it is possible to add a valve to the lower part of the envelope. However, given the presence of the lower outlet port 46, the water can escape, either directly or through the cartridge in the opposite direction of its normal direction. In this case, it is desirable that the length of the conduit 44 be as small as possible.

Claims (11)

  1. Swimming pool filtration and maintenance unit, comprising
    a casing which, in a first part (16), defines a first volume directly connected to the water of the swimming pool and a second volume,
    the second volume being connected to the first volume solely via a filtration cartridge (40) of a filtration assembly of said filtration and maintenance unit, said filtration assembly being borne by a support between at least one water inlet and at least one water outlet which are located in said first part of the casing,
    the pressure in the second volume, when the unit is in operation, being below the pressure in the first volume at the same height,
    the first casing part (16) includes a pipe (44) which connects the lower part of the cartridge (40) to the outside of the lower part of the first casing part (16), such that the inside of the cartridge receives on the one hand water coming from the surface, and on the other hand swimming pool water at a level well below the surface, characterized in that
    the second volume is connected to the outside of the first part (16) of the casing by means of a flow rate multiplying device (66) of said filtration and maintenance unit, said flow rate multiplying device (66) comprising an ejector (64) intended to project a flow of water under pressure into a converging element, the ejector (64) being fed by a pump (60) of a circulation device of said filtration and maintenance unit.
  2. Filtration and maintenance unit according to claim 1, characterized in that
    the casing of the filtration and maintenance unit comprises two parts spaced apart from each other and connected by a connecting device,
    said first part being intended to be partially immersed in a swimming pool and supporting the flow rate multiplying device (66) and the filtration device,
    the second part being intended to be disposed, in plan view, outside the perimeter of the swimming pool and to transmit pressurised water to the first part, and
    the connecting device being disposed between the first and second parts and comprising pipes for water intake (58) and for circulation of pressurised water (62).
  3. Filtration and maintenance unit according to claim 2, characterized in that the second part supports the pump (60) and a motor associated therewith.
  4. Filtration and maintenance unit according to either claim 2 or claim 3, characterized in that the casing comprises a first casing part (16) corresponding to the first part of the unit, a second casing part (18) corresponding to the second part of the unit, and an intermediate casing part (20) corresponding to the connecting device.
  5. Filtration and maintenance unit according to claim 4, characterized in that the first casing part (16) and the second casing part are separable.
  6. Filtration and maintenance unit according to either claim 4 or claim 6, characterized in that the dimensions of the intermediate casing part (20) are such that, in the working position of the unit, the intermediate casing part (20) sits substantially within the volume normally occupied by a rim (12) of the swimming pool edge.
  7. Filtration and maintenance unit according to any one of claims 4 to 6, characterized in that the second casing part (18) is intended to fit into a housing (22) fixed to the outside of the perimeter of the swimming pool.
  8. Filtration and maintenance unit according to any one of the preceding claims, characterized in that the unit comprises an indicating device (50) for indicating a magnitude representing the pressure difference between the first and the second volume of the first casing part (16).
  9. Filtration and maintenance unit according to any one of claims 3 to 6, characterized in that the pipe part (62) for feeding the ejector (64) and which is disposed in the first casing part (16) comprises a branching connecting the outside of the casing and a valve (67) which can be controlled from outside the casing so that at least a part of the circulation flow rate of the pump can circulate in the branching to feed an accessory.
  10. Filtration and maintenance unit according to any one of the preceding claims, characterized in that the filtration cartridge (40) has a an elongate cross-section, comprising two rounded end portions and two substantially rectilinear intermediate portions.
  11. Filtration and maintenance unit according to any one of the preceding claims, characterized in that it additionally comprises a basket for retaining contaminant material and intended to be disposed in a passage formed between an inlet opening (24) for swimming pool water and a filtration cartridge (40, 92), the basket having positive buoyancy, even when it contains a nominal amount of contaminant material, such that it has a natural tendency to rise up in the standing water, and, when it is devoid of any contaminant material and is located in the passage in the presence of a nominal flow rate of swimming pool water, it creates a loss of head at least equal to its buoyancy, so that it tends to sink down.
EP06778859A 2005-07-11 2006-07-11 Filtering and maintenance unit for swimming pool, and retaining basket Active EP1902187B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09173602A EP2141308A1 (en) 2005-07-11 2006-07-11 Retaining basket for a filtering and maintenance unit for a swimming pool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0507397A FR2888268B1 (en) 2005-07-11 2005-07-11 FILTRATION AND MAINTENANCE GROUP FOR SWIMMING POOL
PCT/FR2006/001689 WO2007006971A2 (en) 2005-07-11 2006-07-11 Filtering and maintenance unit for swimming pool, and retaining basket

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EP09173602.5 Division-Into 2009-10-21

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EP1902187B1 true EP1902187B1 (en) 2010-12-01

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EP09173602A Withdrawn EP2141308A1 (en) 2005-07-11 2006-07-11 Retaining basket for a filtering and maintenance unit for a swimming pool

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EP (2) EP1902187B1 (en)
AT (1) ATE490386T1 (en)
DE (1) DE602006018612D1 (en)
ES (1) ES2356927T3 (en)
FR (1) FR2888268B1 (en)
MA (1) MA29687B1 (en)
WO (1) WO2007006971A2 (en)

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FR2917808B1 (en) * 2007-06-22 2012-08-17 Arbatax THREE-WAY VALVE AND FILTRATION GROUP FOR SWIMMING POOLS

Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2003062561A1 (en) * 2002-01-23 2003-07-31 Piscines Magiline Method for circulation and purification of swimming pool water, installation of a system for carrying out said method and corresponding flow multiplier

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DE2630315A1 (en) * 1976-07-06 1978-01-12 Cillichemie Swimming pool surface cleaner pipe connector - has dirt trap base fittings for central pipe socket and ring socket
US4501659A (en) * 1982-12-07 1985-02-26 Henk Charles R Skimmer apparatus for swimming pools
FR2799485B1 (en) * 1999-10-11 2001-11-23 Piscines Desjoyaux Sa PIPING SYSTEM FOR DEVICE FOR FILTERING AND PUMPING WATER FROM A POOL
DE10028751A1 (en) 2000-06-09 2001-12-13 Daimler Chrysler Ag Exhaust gas turbine for turbo charger, has cavity in its housing for covering upstream side of cover ring in guide grille when this grille is moved into position
FR2831581B1 (en) * 2001-10-30 2004-01-23 C S T COMPACT FILTRATION BLOCK FOR POOL AND METHOD FOR MANUFACTURING SUCH A BLOCK
FR2850998B1 (en) * 2003-02-06 2008-06-13 Piscines Desjoyaux Sa DEVICE FOR CONNECTING PIPES
ES2273275T3 (en) * 2003-05-28 2007-05-01 Joel Queirel WATER CIRCULATION SET WITH MULTIPLICATION OF FLOW FOR POOL, AND FILTRATION GROUP THAT UNDERSTANDS IT.

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2003062561A1 (en) * 2002-01-23 2003-07-31 Piscines Magiline Method for circulation and purification of swimming pool water, installation of a system for carrying out said method and corresponding flow multiplier

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MA29687B1 (en) 2008-08-01
WO2007006971A3 (en) 2007-02-15
ES2356927T3 (en) 2011-04-14
ATE490386T1 (en) 2010-12-15
EP2141308A1 (en) 2010-01-06
EP1902187A2 (en) 2008-03-26
FR2888268A1 (en) 2007-01-12
DE602006018612D1 (en) 2011-01-13
FR2888268B1 (en) 2008-04-11
WO2007006971A2 (en) 2007-01-18

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