EP1909942B1 - Step device for filtering water of a pool - Google Patents
Step device for filtering water of a pool Download PDFInfo
- Publication number
- EP1909942B1 EP1909942B1 EP06794266A EP06794266A EP1909942B1 EP 1909942 B1 EP1909942 B1 EP 1909942B1 EP 06794266 A EP06794266 A EP 06794266A EP 06794266 A EP06794266 A EP 06794266A EP 1909942 B1 EP1909942 B1 EP 1909942B1
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- European Patent Office
- Prior art keywords
- tank
- water
- housing
- level
- membrane
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000001914 filtration Methods 0.000 title claims abstract description 43
- 238000005086 pumping Methods 0.000 claims abstract description 29
- 238000013022 venting Methods 0.000 claims abstract description 23
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims description 20
- 238000011045 prefiltration Methods 0.000 claims description 8
- 230000009182 swimming Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Classifications
-
- 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
- E04H4/1272—Skimmers integrated in the pool wall
Definitions
- the invention relates to a device for staged filtration of the water of a pool, in particular a swimming pool, operating at a vacuum and being disposed downstream of a skimmer mouth connected to the wall of the pool at the level of the surface. water and upstream of pumping means, said filtration device having a first tank which comprises in its lower part an outlet for discharging water, and at its upper part a coupling connection with the mouth of skimming, the first tank receiving a filter element disposed below the water level in the basin.
- Pool filtration is traditionally carried out by a hydraulic process consisting of an electric pump that draws water from the pool by a surface skimmer called SKIMMER and / or by suction nozzles distributed on the walls or the bottom of the pool .
- this hydraulic pump is equipped with a pre-filter, usually a cylindrical basket, to protect the impeller of the pump.
- the pump after drawing the water inside the filtration system, then pushes it through a filter (sand filter, diatom filter or filter cartridge). Then the water is discharged into the basin by one or more pipes provided at the end of discharge nozzles.
- the filter is disposed upstream of the pump and downstream of the basket.
- the existing filtration devices have the disadvantage of not being autonomous and requiring a complex and expensive installation. Maintenance and maintenance operations on the filter and the pre-filter are not easy because the user must operate closing valves to avoid draining the basin. In addition, the position of the filter (below the basin) may cause the creation of air pockets in said filter, which must often be purged manually to ensure proper filtration.
- filtration devices comprising a tubular body arranged vertically and which is connected in its upper part to the surface skimmer.
- the tubular body generally comprises superimposed compartments, including an upper housing compartment of a pre-filter basket, having an access cover, and a lower housing housing of the filter element.
- the water is evacuated through a hole in the bottom of the cylindrical body.
- the access cover is accessible from the curbs around the basin.
- the aim of the invention is to propose a filtration device making it possible to increase the maintenance periodicity of its filtering elements, which is easy to maintain, and at the same time makes it possible to reduce the energy losses (due in particular to the clogging of the filtering elements). .
- the device according to the invention makes it possible to obtain a staged filtration by implementing at least two filtering elements (in addition to the conventional pre-filter basket which is only optional) whose retention fineness is progressive.
- the presence of two filter elements makes it possible to increase the time required for the clogging of each of them with respect to the clogging time of a single filter element.
- These filter elements are each inserted into a tank which can be accessed directly from the edge of the pool, so that the maintenance of the filtration device is easy.
- the filter element of the second tank is always immersed, which implies that the water level in the second tank is generally constant, regardless of the number of start-up cycle and stopping the pumping means. This result must be obtained despite the fact that the water supply of the second tank is well below the level of the water in said tank (which is necessary to limit the energy losses between the first tank and the second tank ).
- the automatic means that is to say without user intervention
- the upper part of the second tank are intended to maintain the water level in the second tank constant and stabilized on the water level of the basin.
- the filtration device 1 allows staged filtration of water from a pool (not shown), including a pool. It operates in depression because it is intended to be disposed downstream of a skimming mouth 2 (or SKIMMER) connected to the wall of the pond at level of the surface of the water, and upstream of pumping means (not shown).
- the filtration device 1 comprises a first tank 3 which comprises in its lower part an outlet orifice 4 for discharging the water to a second tank 5.
- the upper part of the first tank 3 comprises a coupling connection 6 with the 2.
- the first tank 3 comprises a lower compartment 7 for removably receiving a filter element 8 formed by a filter basket of large dimensions with a retention fineness of 500 microns.
- the filter element 8 is thus disposed below the level of the water in the basin.
- the first tank 3 may comprise an upper compartment 9, superimposed on the lower compartment 7, for housing a small pre-filter basket (not shown), useful for the retention of very large debris (leaves, needles ...) delaying the clogging of the filter element 8.
- the upper compartment 9 is connected to the skimming mouth 2 and has an access opening 10.
- the second tank 5 is closed in its upper part by a lid 11 extending above the level of the water in the basin, said second tank 5 being disposed downstream of the first tank 4 relative to the direction of the flow of water and upstream of the pumping means.
- the second tank 5 is intended to receive a filter element 12 having a fineness of retention greater than that of the filter element of the first tank 3.
- the fineness of retention of the filter element 12 is 15 microns. It is produced using a filtering medium 13 disposed on the periphery of a rigid tube 14 serving to guide the water previously filtered in the media 13. Nevertheless, the filtering element 12 may be of any known type. the skilled person.
- the filter element 8 may be of any known and appropriate type, for example made using a filter medium disposed on the periphery of a tube rigid.
- its retention fineness may for example be 50 microns, and it will often be used in combination with the pre-filter basket (not shown) intended to be placed in the upper compartment 9 of the first tank 3.
- the second tank 5 comprises a supply port 15, and an outlet port 16 which is connected to the pumping means.
- the line referenced 17 materializes the level of water in the basin
- the line referenced 18 materializes the water level in the second tank 5 when the pumping means operate.
- the lid 11 comprises automatic venting means, which comprise a deformable membrane and elastic, disposed in a housing 20 in which it is free to translate and to deform.
- the bottom 21 of the housing 20 is provided with an orifice 22, and at least one stud 23 projecting from said bottom 21 and located at the periphery of said orifice 22.
- the housing 20 is delimited by a cap 24 whose base is in support by gravity on a seat 25 formed in the cover 11 of the second tank 5.
- the contour of the seat 25 is of complementary shape of the base of the cap 24.
- the cap 24 has the shape of a dome, and has holes 26 for the passage of the air. Pins 27 protrude from the bottom 21 of the housing 20 and provide lateral retention of the membrane 19 in said housing 20.
- the first tank 3 and the second tank 5 are arranged next to each other and connected together by at least two connecting elements, one upper 28 and the other lower 29 for said tanks 3 and 5 constitute a rigid and one-piece assembly.
- the lower connecting element 29 is hollowed out and connects the outlet port 4 of the first tank 3 and the supply port 15 of the second tank 5. It serves here to guide the water in the tank 3 to the tank 5.
- the two tanks 3 and 5 may be distant from each other without departing from the scope of the invention.
- the angular configuration of the second tank 5 around the first tank 3 can be arbitrary.
- the junction between the second tank 5 and its lid 11 is sealed, and removable to allow access to the filter element 12. For example the user will lift the lid 11 when the filter element 12 will need to be changed or cleaned .
- the seal of the junction may for example be obtained using an O-ring not shown.
- the figure 3 represents the venting means provided in the lid 11 when the pumping means are at a standstill.
- the level of the water in the second tank is then marked 30 and coincides with level 17 ( figure 4 ) of the basin.
- the pressure of the interior air which is present between the surface of the water in the second tank 5 and the lid 11, is equal to the atmospheric pressure outside the second tank 5.
- the membrane 19 is at rest, that is, in its natural form. It is supported simultaneously on the nipple 23 and on the bottom 21 so as to extend above the orifice 22. It is held laterally by the lugs 27. The air is free to pass from the outside to inside the second tank 5, and vice versa, in a passage having a small section determined by the space between the bottom 21 of the housing 20 and the membrane 19.
- the arrows of the figure 6 symbolize the lowering of the water level in the second tank 5.
- the level 31 of water stabilizes. If the tightness of the cover 11 and venting means are not perfect, the level of the water in the second tank 5 continues to fall as long as the pumping means operate, until the level of the supply port 15 of the second tank 5.
- the stopping of the pumping means has two phases.
- the first phase ( figure 7 ) stopping the pump causes suction of the water from the basin to the tank 5 due to the depression generated during operation of the pumping means.
- the pressure inside the tank 5 becomes significantly higher than the external pressure.
- the air inside the second tank 5, under pressure is expelled by the venting means.
- the membrane 19 lifts completely from the bottom 21 of the housing 20 and the stud 23, while the lugs 27 hold it laterally.
- the interior air is expelled between the bottom 21 and the membrane 19, then through the holes 26 of the cap 24.
- the exhaust is made in a passage having a section which is significantly greater than the section through which the interior air could passing from the outside to the inside of the second tank 5 (and vice versa) when the membrane 19 was at rest (pumping means at rest).
- said exhaust is possible regardless of the difference between the pressure of the air inside the tank 5 and the atmospheric pressure outside. Without exhaust, the rise of water in the second tank 5 would be impossible and the water level would remain at level 31. Thus, at each cycle of starting and then stopping the pumping means, the level would drop to reach the level of the supply port 15 of the second tank 5.
- the second phase of stopping the pumping means begins when the suction of the pond water ceases and the inner and outer pressures are balanced. At this moment, the water level reached the level referenced 32 on the figure 8 which is located above the level 30 of the water in the basin. Then the previously sucked water is pumped back to the pond, causing the pressure of the indoor air to drop. To allow the level of the water in the second tank 5 to lower until it stabilizes at level 30, the venting means automatically come to occupy a position where the intake of outside air is possible . The outside air sucked follows the path indicated by the arrows of the figure 9 . On the figure 10 , the three upper arrows symbolize the air entering through venting means, and the three lower arrows symbolize the lowering of the water level. If the admission was impossible, the level would remain at level 32. In this case, after a certain number of cycles of starting and stopping the pumping means, the water would escape by means of venting. at each stop pumping means.
- the membrane 19 is substantially at rest, close to its natural shape, positioned above the orifice 22 by a simultaneous support on the stud 23 and the bottom 21. It is maintained laterally by the lugs 27.
- the admission of air is through a passage having a very small passage section, determined by the space separating the bottom 21 of the housing 20 and the membrane 19 slightly deformed.
- the membrane 19 is designed to achieve a level of deformation sufficient to seal the orifice 22 at the time when the difference between the external pressure and the pressure inside the tank 5 becomes greater than a predetermined value.
- the membrane 19 is deformed, as in the case of starting the pumping means and their stabilized regime during operation.
- This value can be determined experimentally or by calculation. In practice, it will depend on the volume of internal air, the volume of the second tank 5, the dimensions and the rigidity of the membrane 19, the diameter of the orifice 21.
- This operation means venting is essential to ensure the level of water in the second tank 5 to be constant after each cycle of starting and stopping the pumping means.
- the filter element 12 placed in the second tank 5 is continuously immersed in its entirety so that filtration is effective.
- this stability of the water level is obtained although the supply orifice 15 of the second tank 5 is significantly below the water level 17 of the basin, which limits the energy losses.
- the lid 11 of the second tank 5 extends above the level 17 of the water in the basin.
- the distance vertically separating the lid 11 of the second tank 5 and the level 17 of the water in the basin is sufficient to prevent the backflow of water through the venting means when stopping the means of pumping.
- This arrangement also allows access to the lid 11 is very easy for the user, because the cover 11 may be provided as flush with the edges around the pool, and thus contributes to the maintenance of the filtration device 1 very easy.
- a filtration device comprising at least three tanks each containing a filtering element, the fineness of retention of the filtering elements increasing progressively during the passage of the water to be filtered through the filtration device.
- the second tank and the following will then be designed identically to the second tank 5 of the example described above.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Water Supply & Treatment (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Farming Of Fish And Shellfish (AREA)
- Filtration Of Liquid (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
L'invention concerne un dispositif de filtration étagée de l'eau d'un bassin, notamment d'une piscine, fonctionnant en dépression en étant disposé en aval d'une embouchure d'écumage raccordée à la paroi du bassin au niveau de la surface de l'eau et en amont de moyens de pompage, ledit dispositif de filtration ayant une première cuve qui comprend dans sa partie inférieure un orifice de sortie pour évacuer l'eau, et à sa partie supérieure une liaison d'accouplement avec l'embouchure d'écumage, la première cuve recevant un élément filtrant disposé en dessous du niveau de l'eau dans le bassin.The invention relates to a device for staged filtration of the water of a pool, in particular a swimming pool, operating at a vacuum and being disposed downstream of a skimmer mouth connected to the wall of the pool at the level of the surface. water and upstream of pumping means, said filtration device having a first tank which comprises in its lower part an outlet for discharging water, and at its upper part a coupling connection with the mouth of skimming, the first tank receiving a filter element disposed below the water level in the basin.
La filtration des piscines est traditionnellement réalisée par un procédé hydraulique composé d'une pompe électrique qui aspire l'eau du bassin par un écumeur de surface dénommée SKIMMER et/ou par des buses d'aspiration réparties sur les parois ou le fond de la piscine. Le plus souvent, cette pompe hydraulique est équipée d'un pré-filtre, en général un panier cylindrique, afin de protéger la turbine de la pompe. La pompe, après avoir aspiré l'eau à l'intérieur du système de filtration, la pousse ensuite à travers un filtre (filtre à sable, filtre à diatomées ou cartouche filtrante). Puis l'eau est rejetée dans le bassin par une ou plusieurs canalisations munies à l'extrémité de buses de refoulement. Dans certaines variantes, le filtre est disposé en amont de la pompe et en aval du panier.Pool filtration is traditionally carried out by a hydraulic process consisting of an electric pump that draws water from the pool by a surface skimmer called SKIMMER and / or by suction nozzles distributed on the walls or the bottom of the pool . Most often, this hydraulic pump is equipped with a pre-filter, usually a cylindrical basket, to protect the impeller of the pump. The pump, after drawing the water inside the filtration system, then pushes it through a filter (sand filter, diatom filter or filter cartridge). Then the water is discharged into the basin by one or more pipes provided at the end of discharge nozzles. In some variants, the filter is disposed upstream of the pump and downstream of the basket.
Compte tenu du fait que la pompe, le filtre, ainsi que le pré-filtre sont généralement intégrés dans un local situé à distance et en dessous du bassin, les dispositifs de filtration existants présentent l'inconvénient de ne pas être autonomes et de nécessiter une installation complexe et coûteuse. Les interventions de maintenance et d'entretien sur le filtre et le pré-filtre ne sont pas aisées car l'utilisateur doit actionner des vannes de fermeture pour ne pas vidanger le bassin. De plus, la position du filtre (en dessous du bassin) risque d'engendrer la création de poches d'air dans ledit filtre, qui doit bien souvent être purgé manuellement pour garantir une filtration correcte.Given that the pump, the filter, and the pre-filter are generally integrated in a room located at a distance and below the basin, the existing filtration devices have the disadvantage of not being autonomous and requiring a complex and expensive installation. Maintenance and maintenance operations on the filter and the pre-filter are not easy because the user must operate closing valves to avoid draining the basin. In addition, the position of the filter (below the basin) may cause the creation of air pockets in said filter, which must often be purged manually to ensure proper filtration.
Pour remédier à ces inconvénients, on a déjà imaginé des dispositifs de filtration comportant un corps tubulaire disposé verticalement et qui est raccordé dans sa partie supérieure à l'écumeur de surface. Le corps tubulaire comporte généralement des compartiments superposés dont un compartiment supérieur de logement d'un panier pré-filtre, ayant un couvercle d'accès, et un compartiment inférieur de logement de l'élément filtrant. L'eau est évacuée par un orifice pratiqué dans le fond du corps cylindrique. Le couvercle d'accès est accessible depuis les margelles autour du bassin.To overcome these drawbacks, filtration devices have already been devised comprising a tubular body arranged vertically and which is connected in its upper part to the surface skimmer. The tubular body generally comprises superimposed compartments, including an upper housing compartment of a pre-filter basket, having an access cover, and a lower housing housing of the filter element. The water is evacuated through a hole in the bottom of the cylindrical body. The access cover is accessible from the curbs around the basin.
Il va de soi qu'après quelques semaines de fonctionnement, l'élément filtrant sera encrassé (on parle de colmatage), de sorte qu'il sera nécessaire de le remplacer par un élément filtrant non usagé ou par un élément filtrant préalablement nettoyé. Généralement, dans un fonctionnement normal, il est nécessaire de changer ou de nettoyer l'élément filtrant tous les quinze jours environ. On conçoit toutefois qu'il peut être intéressant pour l'utilisateur d'augmenter encore plus la périodicité d'entretien de l'élément filtrant, sans pour autant nuire à la qualité de filtration. Cela se traduit par une consommation énergétique plus faible, des coûts d'entretien réduits, et contribue à rendre moins fastidieux l'entretien d'un bassin, en particulier une piscine.It goes without saying that after a few weeks of operation, the filter element will be clogged (we are talking about clogging), so it will be necessary to replace it with an unused filter element or with a previously cleaned filter element. Generally, in normal operation, it is necessary to change or clean the filter element every two weeks or so. However, it is understood that it may be interesting for the user to further increase the maintenance period of the filter element, without impairing the quality of filtration. This results in lower energy consumption, lower maintenance costs, and helps make maintenance of a pool, especially a swimming pool, less tedious.
L'invention a pour but de proposer un dispositif de filtration permettant d'augmenter la périodicité d'entretien de ses éléments filtrants, qui soit aisé à entretenir, et permettant parallèlement de diminuer les pertes énergétiques (dues en particulier au colmatage des éléments filtrants).The aim of the invention is to propose a filtration device making it possible to increase the maintenance periodicity of its filtering elements, which is easy to maintain, and at the same time makes it possible to reduce the energy losses (due in particular to the clogging of the filtering elements). .
Selon l'invention, ce but est atteint par le fait qu'il comporte:
- au moins une seconde cuve obturée dans sa partie supérieure par un couvercle s'étendant au-dessus du niveau de l'eau dans le bassin, ladite seconde cuve étant disposée en aval de la première cuve et en amont des moyens de pompage, et étant destinée à recevoir un élément filtrant présentant une finesse de rétention supérieure à celle de l'élément filtrant de la première cuve,
- des moyens automatiques de mise à l'air agencés à la partie supérieure de la seconde cuve, lesdits moyens de mise à l'air pouvant occuper :
- une position de fermeture étanche lorsque la pression de l'air présent entre la surface de l'eau dans la seconde cuve et ledit couvercle est inférieure à une valeur prédéterminée,
- une position d'échappement délimitant un passage ayant une première section, lorsque ladite pression est supérieure à la pression atmosphérique, pour l'échappement vers l'extérieur de l'air présent entre la surface de l'eau dans la seconde cuve et ledit couvercle,
- une position d'admission délimitant un passage ayant une deuxième section inférieure à la première section, pour l'admission d'air, lorsque ladite pression est supérieure à la valeur prédéterminée et inférieure ou égale à la pression atmosphérique.
- at least one second tank closed in its upper part by a cover extending above the level of the water in the basin, said second tank being disposed downstream of the first tank and upstream of the pumping means, and being intended to receive a filter element having a fineness of retention greater than that of the filter element of the first tank,
- automatic venting means arranged at the upper part of the second tank, said venting means being able to occupy:
- a sealing position when the pressure of the air present between the surface of the water in the second tank and said cover is less than a predetermined value,
- an exhaust position delimiting a passage having a first section, when said pressure is greater than the atmospheric pressure, for the exhaust towards the outside of the air present between the surface of the water in the second tank and said cover ,
- an intake position defining a passage having a second lower section to the first section, for the admission of air, when said pressure is greater than the predetermined value and less than or equal to the atmospheric pressure.
On comprend bien que le dispositif conforme à l'invention permet d'obtenir une filtration étagée en mettant en oeuvre au moins deux éléments filtrants (en plus du panier pré-filtre classique qui n'est qu'optionnel) dont la finesse de rétention est progressive. Pour une finesse de filtration donnée, il va de soi que la présence de deux éléments filtrants permet d'augmenter le temps nécessaire au colmatage de chacun d'eux par rapport au temps de colmatage d'un élément filtrant unique. Ces éléments filtrants sont chacun insérés dans une cuve dont l'accès peut se faire directement depuis le bord de la piscine, afin que l'entretien du dispositif de filtration soit aisé.It is well understood that the device according to the invention makes it possible to obtain a staged filtration by implementing at least two filtering elements (in addition to the conventional pre-filter basket which is only optional) whose retention fineness is progressive. For a given filtration fineness, it goes without saying that the presence of two filter elements makes it possible to increase the time required for the clogging of each of them with respect to the clogging time of a single filter element. These filter elements are each inserted into a tank which can be accessed directly from the edge of the pool, so that the maintenance of the filtration device is easy.
Pour une filtration efficace, il est nécessaire que l'élément filtrant de la seconde cuve soit toujours immergé, ce qui implique que le niveau d'eau dans la seconde cuve soit globalement constant, quel que soit le nombre de cycle de démarrage et d'arrêt des moyens de pompage. Ce résultat doit être obtenu en dépit du fait que l'alimentation en eau de la seconde cuve soit nettement en dessous du niveau de l'eau dans ladite cuve (ce qui est nécessaire pour limiter les pertes énergétiques entre la première cuve et la seconde cuve). A cet effet, quel que soit le nombre de cycle de démarrage et d'arrêt des moyens de pompage, les moyens automatiques (c'est-à-dire sans intervention de la part de l'utilisateur) de mise à l'air de la partie supérieure de la seconde cuve sont destinés à maintenir le niveau d'eau dans la seconde cuve constant et stabilisé sur le niveau d'eau du bassin.For efficient filtration, it is necessary that the filter element of the second tank is always immersed, which implies that the water level in the second tank is generally constant, regardless of the number of start-up cycle and stopping the pumping means. This result must be obtained despite the fact that the water supply of the second tank is well below the level of the water in said tank (which is necessary to limit the energy losses between the first tank and the second tank ). For this purpose, regardless of the number of start and stop cycles of the pumping means, the automatic means (that is to say without user intervention) for venting the air. the upper part of the second tank are intended to maintain the water level in the second tank constant and stabilized on the water level of the basin.
D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes particuliers de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :
- la
figure 1 est une vue en perspective d'un exemple de dispositif de filtration conforme à l'invention, - la
figure 2 est une vue en coupe verticale du dispositif de lafigure 1 lorsque les moyens de pompage fonctionnent, - la
figure 3 est une vue de détail, en coupe, des moyens de mise à l'air lorsque les moyens de pompage sont arrêtés, - la
figure 4 est une vue en coupe de la partie supérieure de la seconde cuve du dispositif de lafigure 1 en situation de lafigure 3 , - la
figure 5 est une vue de détail, en coupe, des moyens de mise à l'air en position de fermeture étanche, - la
figure 6 est une vue en coupe de la partie supérieure de la seconde cuve du dispositif de lafigure 1 en situation de lafigure 5 , - la
figure 7 est une vue de détail, en coupe, des moyens de mise à l'air en position d'échappement, - la
figure 8 est une vue en coupe de la partie supérieure de la seconde cuve du dispositif de lafigure 1 en situation de lafigure 7 , - la
figure 9 est une vue de détail, en coupe, des moyens de mise à l'air en position d'admission, - la
figure 10 est une vue en coupe de la partie supérieure de la seconde cuve du dispositif de lafigure 1 en situation de lafigure 9 ,
- the
figure 1 is a perspective view of an example of a filtration device according to the invention, - the
figure 2 is a vertical sectional view of the device of thefigure 1 when the pumping means operate, - the
figure 3 is a detail view, in section, of the venting means when the pumping means are stopped, - the
figure 4 is a sectional view of the upper part of the second tank of the device of thefigure 1 in situation of thefigure 3 , - the
figure 5 is a detailed view, in section, of the venting means in the sealed position, - the
figure 6 is a sectional view of the upper part of the second tank of the device of thefigure 1 in situation of thefigure 5 , - the
figure 7 is a detailed view, in section, of the venting means in the exhaust position, - the
figure 8 is a sectional view of the upper part of the second tank of the device of thefigure 1 in situation of thefigure 7 , - the
figure 9 is a detailed view, in section, of the venting means in the intake position, - the
figure 10 is a sectional view of the upper part of the second tank of the device of thefigure 1 in situation of thefigure 9 ,
En référence aux
La seconde cuve 5 est obturée dans sa partie supérieure par un couvercle 11 s'étendant au-dessus du niveau de l'eau dans le bassin, ladite seconde cuve 5 étant disposée en aval de la première cuve 4 par rapport au sens de l'écoulement de l'eau et en amont des moyens de pompage. La seconde cuve 5 est destinée à recevoir un élément filtrant 12 présentant une finesse de rétention supérieure à celle de l'élément filtrant de la première cuve 3. Par exemple, la finesse de rétention de l'élément filtrant 12 est de 15 microns. Il est réalisé à l'aide d'un média filtrant 13 disposé en périphérie d'un tube rigide 14 servant au guidage de l'eau préalablement filtrée dans le média 13. Néanmoins, l'élément filtrant 12 pourra être de tout type connu de l'Homme du Métier.The
De même, l'élément filtrant 8 pourra être de tout type connu et approprié, par exemple réalisé à l'aide d'un média filtrant disposé en périphérie d'un tube rigide. Dans ce cas, sa finesse de rétention pourra par exemple être de 50 microns, et il sera souvent utilisé en association avec le panier pré-filtre (non représenté) destiné à être placé dans le compartiment supérieur 9 de la première cuve 3.Similarly, the
La seconde cuve 5 comporte un orifice d'alimentation 15, et un orifice de sortie 16 qui est raccordé aux moyens de pompage. Sur la
En référence à la
En référence aux
La jonction entre la seconde cuve 5 et son couvercle 11 est étanche, et amovible pour autoriser l'accès à l'élément filtrant 12. Par exemple l'utilisateur soulèvera le couvercle 11 lorsque l'élément filtrant 12 nécessitera d'être changé ou nettoyé. L'étanchéité de la jonction pourra par exemple être obtenue à l'aide d'un joint torique non représenté.The junction between the
La
Lors du démarrage des moyens de pompage (
L'arrêt des moyens de pompage présente deux phases. Dans la première phase (
La seconde phase de l'arrêt des moyens de pompage débute quand l'aspiration de l'eau du bassin cesse et que les pressions intérieure et extérieure s'équilibrent. A ce moment, le niveau de l'eau a atteint le niveau référencé 32 sur la
Pendant la seconde phase d'arrêt des moyens de pompage, la différence entre la pression extérieure et la pression à l'intérieur de la cuve 5 est faible (et inférieure à la différence de pression présente lorsque les moyens de pompage fonctionnent). Ainsi, pendant toute la phase d'admission, la membrane 19 est donc sensiblement au repos, proche de sa forme naturelle, positionnée au-dessus de l'orifice 22 par un appui simultané sur le téton 23 et sur le fond 21. Elle est maintenue latéralement par les ergots 27. L'admission de l'air se fait au travers d'un passage ayant une section de passage très faible, déterminée par l'espace séparant le fond 21 du logement 20 et la membrane 19 légèrement déformée. La membrane 19 est conçue pour atteindre un niveau de déformation suffisant pour obturer de manière étanche l'orifice 22 au moment où la différence entre la pression extérieure et la pression à l'intérieur de la cuve 5 devient supérieure à une valeur prédéterminée. Au-delà de cette valeur, la membrane 19 est déformée, comme dans le cas du démarrage des moyens de pompage et de leur régime stabilisé en cours de fonctionnement. Cette valeur pourra être déterminée expérimentalement ou par calcul. En pratique, elle dépendra du volume d'air intérieur, du volume de la seconde cuve 5, des dimensions et de la rigidité de la membrane 19, du diamètre de l'orifice 21...During the second stop phase of the pumping means, the difference between the external pressure and the pressure inside the
En résumé, les moyens automatiques de mise à l'air peuvent occuper :
- une position de fermeture étanche lorsque la pression de l'air présent entre la surface de l'eau dans la seconde cuve 5 et le couvercle 11 est inférieure à une valeur prédéterminée,
- une position d'échappement délimitant un passage ayant une première section, lorsque ladite pression est supérieure à la pression atmosphérique, pour l'échappement vers l'extérieur de l'air présent entre la surface de l'eau dans la seconde cuve 5 et ledit couvercle 11,
- une position d'admission délimitant un passage ayant une deuxième section inférieure à la première section, pour l'admission d'air, lorsque ladite pression est supérieure à la valeur prédéterminée et inférieure ou égale à la pression atmosphérique.
- a sealing position when the air pressure present between the surface of the water in the
second tank 5 and thelid 11 is less than a predetermined value, - an exhaust position delimiting a passage having a first section, when said pressure is greater than the atmospheric pressure, for the exhaust towards the outside of the air present between the surface of the water in the
second tank 5 and saidcover 11, - an intake position defining a passage having a second lower section to the first section, for the admission of air, when said pressure is greater than the predetermined value and less than or equal to the atmospheric pressure.
Ce fonctionnement des moyens de mise à l'air est indispensable pour garantir au niveau de l'eau dans la seconde cuve 5 d'être constant après chaque cycle de démarrage et d'arrêt des moyens de pompage. Il en résulte que l'élément filtrant 12 placé dans la seconde cuve 5 est continuellement immergé dans sa totalité afin que la filtration soit efficace. De plus cette stabilité du niveau de l'eau est obtenue bien que l'orifice d'alimentation 15 de la seconde cuve 5 est nettement en dessous du niveau 17 d'eau du bassin, ce qui permet de limiter les pertes énergétiques.This operation means venting is essential to ensure the level of water in the
En référence à la
Enfin, on pourra envisager un dispositif de filtration comportant au moins trois cuves contenant chacune un élément filtrant, la finesse de rétention des éléments filtrants augmentant progressivement lors du passage de l'eau à filtrer au travers du dispositif de filtration. La seconde cuve et les suivantes seront alors conçues de manière identique à la seconde cuve 5 de l'exemple précédemment décrit.Finally, it will be possible to envisage a filtration device comprising at least three tanks each containing a filtering element, the fineness of retention of the filtering elements increasing progressively during the passage of the water to be filtered through the filtration device. The second tank and the following will then be designed identically to the
Claims (10)
- A device for staged filtration (1) of the water of a basin, in particular of a swimming pool, operating in depression and located downstream from a skimmer (2) connected to the wall of the basin at the level of the surface of the water and upstream from pumping means, said filtration device (1) having a first tank (3) that comprises an outlet (4) for removing the water at the bottom part thereof and a connection (6) with the skimmer (2) at the top part thereof, the first tank (3) receiving a filtering element (8) arranged below the level (17) of the water in the basin,
characterized in that it comprises:- at least a second tank (5) closed off at the top by a cover (11) extending above the level (17) of the water in the basin, said second tank (5) being located downstream from the first tank (3) and upstream from the pumping means and being designed to receive a filtering element (12) presenting a higher filtration rating than that of the filtering element (8) of the first tank (3),- automatic venting means arranged at the top part of the second tank (5), said venting means being able to occupy:- a tightly closed position when the pressure of the air present between the surface of the water in the second tank (5) and said cover (11) is lower than a preset value,- an outlet position delineating a passage having a first cross-section, when said pressure is higher than atmospheric pressure, to remove the air present between the surface of the water in the second tank (5) and said cover (11) to the outside,- an inlet position delineating a passage having a second cross-section that is smaller than the first cross-section, for inlet of air when said pressure is higher than the preset value and lower than or equal to atmospheric pressure. - The device according to claim 1, characterized in that the venting means comprise a deformable elastic membrane (19) arranged in a housing (20) wherein the membrane is free to translate and deform, the housing (20) being provided with a bottom (21) provided with an opening (22) and with at least one pin (23) salient from said bottom (21) and situated at the periphery of said opening (22), said housing (20) being arranged in such a way that:- in the inlet position, the membrane (19) is situated above the opening (22), pressing on the pin (23) and on the bottom (21),- in the closed position the membrane (19) tightly blanks off the opening (22) by deformation to prevent inlet,- in the outlet position, the membrane (19) lifts off from the bottom (21) and the pin (23).
- The device according to claim 2, characterized in that the housing (20) is made in the cover (11) of the second tank (5).
- The device according to claim 3, characterized in that the housing (20) is delineated by a cap (24) having a base pressing by gravity on a seat (25) made in the cover (11) of the second tank (5), the outline of said seat (25) being of complementary shape to the base of said cap (24).
- The device according to claim 4, characterized in that the cap (24) is dome-shaped and comprises holes (26) for air to pass.
- The device according to any one of claims 2 to 4, characterized in that spurs (27) salient from the bottom of the housing (20) perform lateral securing of the membrane (19) in said housing (20).
- The device according to any one of claims 1 to 6, characterized in that the distance separating the cover (11) of the second tank (5) and the water level (17) in the basin is sufficient to prevent water from being discharged through the venting mean when the pumping means are shut down.
- The device according to any one of claims 1 to 7, characterized in that the first tank (3) and second tank (5) are arranged side by side and are connected to one another by at least two connecting elements (28) and (29) so that said tanks (28) and (29) form a rigid monoblock assembly.
- The device according to any one of claims 1 to 8, characterized in that the junction between the second tank (5) and its cover (11) is tight and removable to allow access to the filtering element (12).
- The device according to any one of claims 1 to 9, characterized in that the first tank (3) comprises at least two superposed compartments (7) and (9), an upper compartment (9) housing a pre-filter basket connected to the skimmer (2), and a lower compartment (7) housing the filtering element (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0508275A FR2889458B1 (en) | 2005-08-03 | 2005-08-03 | DEVICE FOR THE LAYERED FILTRATION OF THE WATER OF A BASIN |
PCT/FR2006/001874 WO2007015006A1 (en) | 2005-08-03 | 2006-08-02 | Step device for filtering water of a pool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1909942A1 EP1909942A1 (en) | 2008-04-16 |
EP1909942B1 true EP1909942B1 (en) | 2009-03-11 |
Family
ID=36217566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06794266A Active EP1909942B1 (en) | 2005-08-03 | 2006-08-02 | Step device for filtering water of a pool |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1909942B1 (en) |
AT (1) | ATE424912T1 (en) |
DE (1) | DE602006005678D1 (en) |
ES (1) | ES2323435T3 (en) |
FR (1) | FR2889458B1 (en) |
WO (1) | WO2007015006A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104548720A (en) * | 2013-10-14 | 2015-04-29 | 珠海格力电器股份有限公司 | Filter and filter element connecting device thereof |
CN206715425U (en) * | 2017-03-31 | 2017-12-08 | 上海荣威塑胶工业有限公司 | Water surface cleaner |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1237479A (en) * | 1959-10-09 | 1960-07-29 | Air purge valve of a hydraulic pipe | |
FR2297338A1 (en) * | 1975-01-08 | 1976-08-06 | Weltico | Swimming bath filtration unit - has pumping set mounted immediately below channel draining surface water |
US4606819A (en) * | 1980-01-30 | 1986-08-19 | Colson Andrew E | Swimming pool apparatus |
US4574048A (en) * | 1982-12-27 | 1986-03-04 | Kdi Sylvan Pools, Inc. | Vacuum filter system for swimming pools |
DE9420008U1 (en) * | 1994-12-14 | 1995-02-02 | IBEDA GmbH, 53577 Neustadt | Ventilation and / or ventilation valve |
US6120614A (en) * | 1997-11-14 | 2000-09-19 | Ez Environmental Solutions Corporation | Method and apparatus for pressure washing |
US6419840B1 (en) * | 1999-03-30 | 2002-07-16 | Jonathan E Meincke | Cleaning system for swimming pools and the like |
AU7833400A (en) * | 1999-09-30 | 2001-04-30 | H-Tech, Inc. | Air-relief valve assembly |
-
2005
- 2005-08-03 FR FR0508275A patent/FR2889458B1/en not_active Expired - Fee Related
-
2006
- 2006-08-02 DE DE602006005678T patent/DE602006005678D1/en not_active Expired - Fee Related
- 2006-08-02 EP EP06794266A patent/EP1909942B1/en active Active
- 2006-08-02 AT AT06794266T patent/ATE424912T1/en not_active IP Right Cessation
- 2006-08-02 ES ES06794266T patent/ES2323435T3/en active Active
- 2006-08-02 WO PCT/FR2006/001874 patent/WO2007015006A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FR2889458B1 (en) | 2008-04-18 |
ATE424912T1 (en) | 2009-03-15 |
FR2889458A1 (en) | 2007-02-09 |
ES2323435T3 (en) | 2009-07-15 |
EP1909942A1 (en) | 2008-04-16 |
WO2007015006A1 (en) | 2007-02-08 |
DE602006005678D1 (en) | 2009-04-23 |
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