ES2558028B1 - Improved filtration procedure of water in a container - Google Patents

Abstract

The invention concerns a method of filtration of water from a container, said container comprising a bottom (10) and walls (11), inside which a current (in the volume of water contained in said container is generated) 26) of main water, said main water stream (26) decomposing, after contact with a wall placed in the propagation path of said water stream, in a rotating surface water stream (27) to ensure the cleaning the surface water of the container and a rotating water (28) in depth water to ensure the cleaning of the water in depth of the container, said rotating water surface (27) being created by at least one device (14 ) suction device comprising an outlet to a water filtration circuit of the container, said filtration circuit being in communication with a discharge orifice to resend the water that the said filtration circuit has passed through said container, the aforementioned rotating water stream being sucked in depth by a Venturi effect created in a suction cell (18) comprising said discharge orifice and extended downwards by a conduit ( 23) comprising at least one suction nozzle (20-22), and being filtered by the filtration circuit. # According to the invention, the rotating water stream (28) is circulated in depth at the bottom surface (10) of said container to recover the impurities deposited on said bottom (10), by suction through said at least one suction mouth (20-22) placed in contact with the bottom (10) of said container or in the vicinity of said fund (10).

Description

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The filtered water leaving the recycling circuit is thus combined with the water drawn at the level of the turboagitator opening by Venturi effect reflected to form, at the outlet of the discharge orifice, an important main water stream.

As Figure 1 shows, this main water stream 1 decomposes into a rotating water of surface water 2 and a rotating water stream of depth 3, during its contact with the wall 4 of the pool opposite to that in which The turboagitator 5 and the suction hole 6 of the suction type are mounted.

While the surface water rotating current 2 ensures the surface water treatment, the deep water rotating current 3 allows the deep water treatment of the pool.

Although this procedure of water filtration of a pool gives good results, it can still be improved.

Indeed, despite the deep water treatment of the pool, the persistence of impurities on the surface 6 of the bottom of the pool can be observed.

Thus, the lower extremity of the pool, or bottom, as well as the immediately adjoining layers of water do not remain, or remain little, sufficiently treated. This may result from the imperfect positioning of the single opening of the turboagitator or the geometry of the pool bottom that is not always flat.

However, these impurities are, on the one hand, unstable because they are visible from the edge of the pool and, on the other, they can affect the clarity of the pool's water, for example by decomposition of organic matter.

The present invention is intended to alleviate this inconvenience of the prior art, proposing a water filtration procedure of a pool, simple in its design and in its operative, economical way and that ensures a removal of all the impurities at the bottom of the pool.

Another object of the present invention is an aspiration device whose original design allows such evacuation of impurities at the bottom surface of the container thereby effectively replacing a bottom sump.

Brief Description of the Invention

For this purpose, the invention concerns a method of water filtration of a container, said container comprising a bottom and walls, inside which a main water stream is generated in the volume of water contained in said container. , which decomposes after contact with a wall placed in the propagation path of said water stream, in a rotating surface water stream to ensure cleanliness of the surface water of the vessel and in a rotating water stream in depth to ensure the cleaning of the water in depth from the container, the aforementioned surface water rotating current being created by at least one suction device comprising an outlet to a water filtration circuit of the container, said filtration circuit being in communication with a discharge orifice to resend the water that has passed through said filtration circuit to said recipient e, the aforementioned deep water rotating current being sucked by a Venturi effect created in an aspiration cell comprising said discharge hole and extended downwards by a conduit comprising at least one suction mouth, and being filtered by the cited filtration circuit.

In accordance with the invention, the rotating water flow in depth is circulated on the bottom surface of said container to recover the impurities deposited on said bottom, by aspiration through the

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said at least one suction mouth placed in contact with the bottom of said container or in the vicinity of said bottom.

By purely illustrative title, said suction mouth having a dimension H along the longitudinal axis of the duct, "in the vicinity of said bottom" means a dimension less than or equal to 2H.

Preferably, said filtration circuit comprises at least one filter and one pump.

In different particular embodiments of this procedure, each having its particular advantages and being susceptible to numerous possible technical combinations:

- the aforementioned rotating water flow is created in depth by aspiration through at least two suction nozzles distributed in the free end of said conduit.

Preferably, said conduit comprises at its free end three suction nozzles distributed so as to generate an aspiration at 120 °.

- said said at least one suction mouth being placed on the free end of said duct whose longitudinal dimension is adjustable, the position of said at least one suction mouth is adjusted with respect to the bottom of the container.

Advantageously, a possible adjustment of the duct length allows a single duct to adapt the suction device to different configurations and / or container depths.

In addition, precise positioning of the suction mouth (s) with respect to the bottom of the container makes it more efficient to sweep the surface of the bottom of the container by the rotating water flow in depth.

- the aforementioned filtration circuit comprising at least one filter and a pump, the water sucked by said suction device is filtered first before passing to the pump of said filtration circuit.

Thus, the filtration circuit pump is advantageously protected while maintaining optimum flow at the pump outlet. On the other hand, operating in depression, there is no risk of damaging the filter if the latter is saturated.

Preferably, said at least one filter comprises a cartridge filter. The cartridge can be made of paper or synthetic material.

- the aforementioned filtration circuit comprising at least one filter having a filtration flow Df and a pump, a centrifugal pump connected to an injector whose outlet orifice has a diameter that ensures an injection flow Di in is put into practice said suction cell less than or equal to Df.

Advantageously, thus calibrating the injection rate Di in the suction cell, any deterioration of the filter is avoided.

Preferably, said centrifuge pump having a maximum theoretical flow Dmax corresponding to a power Po of said pump, said pump operates with a flow Dop <Dmax corresponding to a maximum pressure Dmax provided by the pump with Dmax> Po.

For a centrifugal pump that has a maximum theoretical flow Dmax given, it will be sought, to obtain a high output speed, to use the maximum pump pressure at the expense of the flow so as to optimize the Venturi effect.

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Advantageously, a strong current is also generated that allows to go countercurrent to the outlet of the discharge hole.

The present invention also concerns a device for suctioning the bottom water of a container for the implementation of the procedure such as that described above, which comprises a duct, on a free end of which at least one suction mouth is placed, said conduit comprising at its other end an ejector comprising the discharge hole of the container, said ejector being intended to cooperate with an injector to generate a depression by Venturi effect.

According to the invention, the longitudinal dimension of this duct is adjustable and / or the free end of this duct is articulated.

As an example, the tip of this duct is mobile in rotation.

Also, having this duct a rectangular or square section, the living angles will be, preferably cut so as not to be hurtful or also to not damage the sealing liner of the container. For purely illustrative purposes, the conduit has chamfers at the level of its edges.

Preferably, this conduit is angled to protect the watertight liner of the container at the level of the bottom of said container. Advantageously, the angled part of said conduit has a rounded surface.

Still in a preferred embodiment, this suction device comprises at least two suction nozzles distributed in the free end of said conduit.

There has been a significant improvement in the cleaning of the bottom of the container by laterally disposing one and even better two additional suction nozzles.

The present invention also concerns a swimming pool equipped with a bottom water suction device such as the one described above.

Advantageously, this pool comprising a container, said conduit is placed inside said container being at least partially submerged, or it is placed at least in part behind a wall of the container, then said at least one wall comprising an opening that allows the passage of the free extremity of this conduit comprising said at least one suction mouth.

According to a first embodiment, this duct is placed inside the pool container being at least partially submerged, the injector being then placed in a wall of the container.

According to a second embodiment, this conduit is placed at least in part behind a wall of the container, for example being received in a housing. The discharge hole is then placed in the wall of this vessel.

Naturally, this duct is arranged so that said at least one suction mouth is placed in contact with the bottom of the container or in the vicinity of this bottom. By way of example, this wall of the container can then comprise an opening through which the free end of the duct passes so that said at least one suction mouth is placed inside the said container, the free end of which is duct connected tightly to the wall for example by means of a sealing element.

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More generally, each free end of the duct can be movable between at least two extreme positions, a first one in which said at least one suction mouth is placed in contact with the bottom

of said container and a second in which said at least one suction mouth is placed in the

proximity of said background.

Naturally, the free end of the duct can pass from one to the other of these two extreme positions or instead explore one or more of the intermediate positions between these two extreme positions.

This embodiment advantageously allows to find the best efficiency of the device to clean the bottom of the pool.

An initial configuration stage can be used by which, by moving said at least one mouth of

aspiration with respect to the bottom of the pool, it seeks to obtain the position of the aforementioned at least one mouth of

aspiration that of the best aspiration with respect to the geometry, or configuration, of the bottom of the pool.

Brief description of the drawings

Other advantages, objectives and particular characteristics of the present invention will be revealed in the description that follows, made, for an explanatory purpose and in no way limiting, in relation to the attached drawings, in which:

- Figure 1 is a partial and perspective view of a swimming pool equipped with a water filtration system of the prior art, showing the circulation of water in the container of this pool, the turboagitator is represented in partial section to show the injector,

- Figure 2 shows the circulation of water in a pool provided with a water filtering system according to a first embodiment of the present invention,

- Figure 3 is a longitudinal section view of the pool of Fig. 2 schematically showing the circulation of water inside the container of this pool,

- Figure 4 is a partial sectional and enlarged view of the container of Fig. 2 showing the suction device,

- Figure 5 is a partial and front view of the wall of the container receiving the duct of the aspiration device of Fig. 4,

- Figure 6 is a partial and top sectional view of the wall of the container receiving the duct of the suction device of Fig. 4 showing the three suction nozzles of this duct,

- Figure 7 is a partial sectioned and enlarged view of a swimming pool provided with a water filtration system according to a second embodiment of the present invention,

- Figure 8 is a partial and front view of the wall of the container receiving the duct of the aspiration device of Fig. 7.

Detailed description of embodiments of the invention

It is noted first that the figures are not to scale.

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Figures 2 to 6 describe a swimming pool equipped with a water filtration system according to a first embodiment of the invention.

This pool comprises a container delimited by a bottom 10 and walls 11 covered with a liner, this container being filled with water.

The water filtration system of the container comprises a water filtration circuit coupled to a turboagitator to set in motion the entire volume of water of this container.

The filtration circuit comprises a centrifugal pump 12, a filter 13 having a filtration rate Df and a suction device 14 placed on one of the walls 11 of the container. The various elements of this filtration circuit are joined together by short tubes.

This filtration circuit comprises an outlet formed by an injector comprising a narrowing tube 16 and having an injection hole 17 at its free end whose diameter ensures an injection flow Di in a suction cell 18 of the turboagitator. The injection rate Di is substantially equal to the flow rate Df of the filter 13.

This suction cell 18 also comprises an ejector 19 comprising a water discharge hole in the container, this ejector 19 being placed in front of the injection hole 17.

Between the injector 16, 17 and the ejector 19 a depression is generated by the Venturi effect, which creates an aspiration that advantageously moves at the level of three suction nozzles 20-22 placed in the free end of a duct 23 that extends downwards this aspiration cell 18.

These suction nozzles 20-22, which are distributed in a front half plane of the duct 23, are placed in the immediate proximity of the bottom 10 of the container.

The conduit 23 that is submerged in the pool container, is angled in its lower part comprising the suction nozzles 20-22 so as not to damage the tight liner of the container. In this configuration, the injector 16, 17 is placed in the wall of the container that separates the container from the technical room.

The flow rate 24 of filtered water propelled by the pump 12 through the turboagitator suction cell 18 increases by a supplementary water flow 25 constituted by the bottom water of the suction vessel at the level of the three suction nozzles 20-22 VENTURI reflected effect

At the outlet of the discharge orifice, a main stream 26 of water is thus obtained whose flow rate is significantly increased.

This main water stream 26 created at the outlet of the injector 19, that is at the level of the discharge orifice, decomposes into two simultaneous secondary streams of water:

- a rotating surface water stream 27 normally created by the surface aspiration of the suction device 14, and

- a rotating water stream 28 in depth created by aspiration of the bottom water through the three suction nozzles 20-22.

This last stream 28 of water advantageously sweeps the surface of the bottom 10 of the container in such a way that the impurities present in this bottom 10 are brought to the three suction nozzles 20-22.

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Figure 2 schematizes the amplitude of the deep water rotating stream 28 advantageously created by the three suction nozzles 20-22.

This suctioned bottom water and these impurities are aspirated by the turboagitator and mixed therein with the filtered water 24 propelled by the pump 12 centrifuge.

The rotating surface water stream 27 constituted by a part of the water exiting the ejector 19 carries, on the one hand, a part of the impurities that come from the bottom surface 10 of the container and, on the other, the surface impurities, all being sucked by the suction device 14 to be filtered in the filter 13.

The length of the duct 23 of the turboagitator is advantageously adjustable to ensure the adaptation of the turboagitator to different vessel configurations. For purely illustrative purposes, the conduit 23 is in this case a telescopic conduit.

Figures 7 and 8 show a swimming pool equipped with a water filtering system according to a second embodiment of the invention. The elements bearing the same numerical references as those in Figures 2 to 6 represent the same objects, which will not be described again in the following.

The conduit 23 is placed in part behind a wall 11 of the container in a room 29, purely illustrative, a technical room also called a block, attached to the container. The lower end of this duct 23, which comprises the three suction nozzles 20-22, is placed in a projection inside the container through an orifice made in the wall 11 that separates the container from the technical room. A sealing element 30 such as a flexible sealing membrane or also a bellows in a tight accordion ensures the tightness between the lower end of the duct 23 and this wall. The discharge orifice, on the other hand, is placed in this wall of the container or protrudes inside the container, the ejector 19 being then partially projected in the interior of the container.

As shown in Figure 8, the lower end of the duct 23 comprising the three suction nozzles 20-22 is advantageously articulated to the rest of the duct body 23 so that the position of each of the suction nozzles 20-22 with respect to the bottom 10 of the pool can be adjusted.

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1. Water filtration process of a container, said container comprising a bottom (10) and walls

(11), inside which a main stream (26) of water is generated in the volume of water contained in said container, the said main stream (26) of water breaking down after contact with a wall (11) placed in the propagation path of said water stream, in a rotating water stream (27)

surface to ensure cleanliness of water on the surface of the container and in a rotating water stream (28)

in depth to ensure the cleaning of the water in depth from the container, said rotating surface water (27) being created by at least one suction device (14) comprising an outlet towards a water filtration circuit of the container, being said filtration circuit in communication with a discharge orifice to resend the water that has passed through said filtration circuit to said container, said rotating water current being sucked in depth by a Venturi effect created in a suction cell (18 ) comprising said discharge hole and extended downwards by a conduit (23) comprising at least one suction mouth (20-22), and being filtered by said filtration circuit, characterized in that the current is circulated (28) rotating water in depth at the bottom surface (10) of said container to recover the impurities deposited on said fond or (10), by aspiration through said at least one suction mouth (20-22) placed in contact with the bottom (10) of said container or at a distance from said bottom (10) less than 2H, where H it is the dimension of said suction mouth along the longitudinal axis of said bottom (10).

2. Method according to claim 1, characterized in that said water rotating current (28)

in depth it is created by aspiration through at least two suction nozzles (20, 21) distributed in the

free end of said conduit (23).

3. Method according to claims 1 or 2, characterized in that, said at least one suction mouth (20-22) being placed on the free end of said duct (23) whose longitudinal dimension is adjustable, adjusts the position of said at least one suction mouth with respect to the bottom (10) of said container.

4. Device for aspirating the bottom water of a container for the implementation of the method according to any one of claims 1 to 3, comprising a conduit (23), on a free end of which at least one is placed suction mouth (20-22), said duct (23) comprising at its other end an ejector (19) comprising the discharge hole of the container, said ejector state (19) intended to cooperate with an injector (16, 17) to generate a depression by Venturi effect, characterized in that the longitudinal dimension of said conduit (23) is adjustable or the end of said conduit (23) is articulated.

5. Suction device according to claim 4, characterized in that said conduit (23) is angled to protect the watertight liner of the container at the bottom level (10) of said container.

6. Suction device according to claims 4 or 5, characterized in that it comprises at least two suction nozzles (20-22) distributed in the free end of said conduit (23).

7. Pool equipped with a bottom water suction device (10) according to any one of claims 4 to 6.

8. Pool according to claim 7, characterized in that said pool comprising a container, said duct (23) is placed at least partly behind a wall of the container, then comprising

Claims (1)

said at least one wall an opening for the passage of the free end of said conduit comprising said at least one suction mouth (20-22). image 1 6 FIG. one PREVIOUS TECHNIQUE image2 10 FIG. 2 image3