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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/8593—Systems
  • Y10T137/87571—Multiple inlet with single outlet

Definitions

• the present invention relates to a filtration method for swimming pools which considerably improves the efficiency of filtration by increasing the flow of filtered water without, however, increasing the power of the pumps required for circulating the water.
• FIG. 9 in which the general layout circuit in the swimming pool has been schematized, assuming for example that the suction of water is done through a pump 10, at a bottom drain 11, passing through a filter 12, with the discharge at 13 (corresponding to the orifice 124 in FIG. 8) and the suction at 14, just above (corresponding to the inlet opening 114) for recycling in this part of the basin a stream of water passing through the basket 134.
• the invention is used at least part of the discharge water flow from the circulation pump to send it into at least one flow multiplier, essentially consisting of a converging nozzle followed by a diverging nozzle with an inlet for said inlet pump discharge water flow, the inlet on the converging nozzle side of the flow multiplier communicating with at least one inlet of water to be filtered coming from the swimming pool basin and passing through a filter suitably disposed upstream of this inlet, and the outlet on the diverging nozzle side opens into the basin forming backflow.
• the flow multiplier according to the invention is clearly more efficient than the nozzle drive device of document US Pat. No.
• the method of the invention allows to filter the total multiplied water flow and in addition allows to reinject the discharge water with its multiplied flow in any suitable place of the basin.
• the admission of water to be filtered can be done advantageously by at least one skimmer.
• the invention also relates to a water flow multiplier, characterized in that it comprises: suction side a convergent nozzle, discharge side a diverging nozzle, at the throttle, between the two nozzles which are connected, a ring surrounding the narrowed section, into which ring is brought the pump discharge water, which opens out through an annular slot at the start of the divergent nozzle.
• the invention naturally also relates to a swimming pool equipped with a filtration system designed according to the method of the invention or equipped with a flow multiplier according to the invention.
• FIG. 1 schematically illustrates a conventional circuit for filtration and circulation of water from swimming pool ;
• Figure 2 illustrates a top view of the swimming pool basin equipped with the filtration and circulation circuit shown schematically in Figure 1;
• FIG. 3 illustrates, like FIG. 1, a circuit for filtration and circulation of the water of a swimming pool modified according to the principle of the invention;
• FIG. 4 illustrates a top view of the swimming pool basin equipped with the filtration and circulation circuit shown diagrammatically in FIG.
• FIG. 5 shows in cross section a filtration system according to the invention using a water inlet to be filtered disposed at the mouth of a skimmer;
• Figure 6 illustrates a top view of a swimming pool equipped as in Figure 4, but with a somewhat different arrangement of the suction and discharge rates of the system;
• FIG. 7 illustrates in longitudinal section a water flow multiplier designed in accordance with the invention;
• Figure 8 shows in cross section, similar to Figure 5, equipment known from the prior art;
• FIG. 9 illustrates a top view of the swimming pool basin equipped with a filtration and circulation circuit using the device of FIG. 8, and
• FIG. 10 shows on a larger scale the detail surrounded by X in FIG. 7.
• FIGS. 1 and 2 of the drawings illustrate a conventional filtration and circulation scheme suitable for a conventional family type swimming pool which may for example have dimensions of 5m in width and 10m in length with at one end a staircase to access the basin in a shallow area and on the opposite a deeper basin with a diving tank in which is located in the center and at the bottom point a bottom drain.
• the pump 10 sends the water to be filtered through a pipe 26 in the filter 12, the filtered water being discharged through the valve 13 open to a discharge nozzle 27 or more generally two discharge nozzles 27, 28 by pipes 29, 29 '.
• the flow rates at suction and discharge are as indicated in the diagrams, and for example in the case of two discharges at nozzles 27, 28 and three aspirations respectively at the bottom drain 21, and at the skimmers 23, 24, we will have a delivery flow of 5 m3 at each nozzle 27, 28, a suction flow for example of 5 m3 at the bottom drain 21, and two suction flows of 2.5 m3 respectively at the two skimmers 23 and 24.
• FIGS. 3 and 4 in which the same numerical references as in FIGS. 1 and 2 have been used to designate the similar elements found in the two installations.
• the pump 10 with its motor unit 11, the filter 12, the pipe 20 for connection to the bottom drain 21, the pipe 18 for connection to the brush outlet 19, and the valves 15 and 16 provided on the pipes. 18 and 20.
• the discharge water leaving the filter 12 via the line 29 is not sent to a discharge nozzle in the swimming pool basin.
• This flow of filtered water (of 10 m 3 in the chosen example of pump 10) is sent to a flow multiplier designed specifically for the purposes of the invention. The construction of this flow multiplier will be explained in detail below in relation to FIG. 7.
• this flow multiplier referenced 30 is constituted by the end-to-end assembly of two nozzles respectively converging at the inlet and diverging at the outlet (with reference to the direction of water circulation in the nozzles) and a ring arranged at the level of the communication throttle of the two nozzles, surrounding the narrowed section, into which ring is supplied the pump discharge water which opens out through an annular slot at the start of the divergent nozzle.
• This flow multiplier thus produces suction in the inlet nozzle (the converging nozzle) under a flow rate multiplied by a factor between 2 and 3, precisely in the example of embodiment illustrated and implemented by 2.6.
• a flow of 10 m3 is admitted into the flow acceleration ring, it is a flow of 26 m3 which is sucked in at the inlet of the device, and therefore a flow of 36 m3 which is turned back at the exit.
• this arrangement is advantageously used by making the inlet on the converging nozzle side of the multiplier 30 communicate with at least one inlet of water to be filtered coming from the swimming pool basin and which will be sent through a filter suitably.
• the intake of water to be filtered is constituted by a skimmer mouth.
• the mouth of the skimmer 23 we find the mouth of the skimmer 23.
• the outlet of the flow multiplier device leads into a conduit of suitable diameter 32 which ends in a discharge nozzle 33 disposed in the basin of the pool in a suitable place to achieve the best circulation of the pool water.
• the installation of the multiplier device allows all possible imaginable variants of arrangement.
• the 36 m3 of water flow discharged at the outlet of the multiplier device can be sent as in the conventional arrangement diagram of FIG. 2 to two nozzles such as 27 and 28 but which will receive a flow rate each of 18 m3 instead of the 5 m3 obtained in the classic scheme from a pump of the same power.
• the suction in the multiplier device can be done via the two skimmers 23 and 24 of the arrangement of FIG. 2, but with a suction flow this time of 13 m3 instead of the 2, 5 m3 obtained in the classic scheme.
• the two skimmers 23 and 24 will advantageously each be equipped with a filter, for example of the type described below in FIG. 5.
• FIG. 5 a possible embodiment of an intake of water to be filtered coming from has been illustrated. of the swimming pool basin and which will be sucked in by the flow multiplier according to the invention.
• the wall of the basin which retains water up to the level indicated at 35 in the swimming pool.
• an opening 36 which opens in a conventional manner behind the wall 34 in a recessed volume 37 which receives the water, as indicated by the arrow, admitted through the opening 36 , at the entrance of which we see a classic hinged flap 48.
• volume 37 there is also a conventional basket 38 capable of retaining large floating debris, such as for example leaves. The water thus freed from this debris is usually recycled to pump 10 by a pipe such as 22 illustrated in FIGS. 1 and 2.
• the volume 37 extends over a length sufficient to receive a filter 39, for example of the cartridge type.
• the water freed of its most important debris which has been collected on the surface of the basin and which has remained in the basket 38, passes through the filter 39 and leaves it filtered at the base by a pipe 40, of section and profile. appropriate (which have not been illustrated here, but which will be calculated depending in particular on the flow rates), which pipe is connected to the input of the flow multiplier 30 of the invention.
• This device operates, as will be explained in detail below in connection with FIG. 7, by being supplied by an annular intake ring situated at the junction of the converging and diverging nozzles of the device, respectively, which annular ring receives the delivery flow from pump 10 through line 29.
• the apparatus or device referenced as a whole 30 essentially consists, as already indicated above, of a convergent water intake nozzle 41, which is extended by a divergent water evacuation nozzle 43, the two nozzles connecting in their narrowing region by communicating with an annular ring 42 via a slot 44 directed parallel to the axis y'y of the device and in the downstream direction it is ie in the direction y'y.
• annular ring 42 has a part of essentially circular cross section, except an internal part referenced 45 which comes in inclined plane connect at an obtuse angle with slot 44.
• the angle of convergence ⁇ of the nozzle 41 is advantageously of the order of 15 degrees, while the angle of divergence ⁇ of the nozzle 43 is advantageously of the order of 7 degrees.
• the water supply ring from the pump and the two nozzles are advantageously formed by plastic molding in two pieces joined together along a median joint plane of the ring.
• Each of the two parts in question can itself be formed of two symmetrical longitudinal halves joined together along a longitudinal median junction plane.
• the respective pipes 40 for water intake from the filter 39 and 32 for discharging the water towards the basin are formed shoulders to which are connected at constant diameter, the respective pipes 40 for water intake from the filter 39 and 32 for discharging the water towards the basin.
• the dimensioned drawing gives dimensions which have provided all satisfaction under the conditions indicated for the flow rate of the circulation pump and the diameter of the pipes.
• the dimensions of the flow multiplier device will be a function of the envisaged water flow rates, and that in general it will suffice to carry out a homothety to adapt the device to higher flow rates or to lower flow rates.
• An advantage of the invention is that its application allows very great flexibility of use, in particular at the level of the distribution around the basin, of the aspirations and expulsions. For example, one can imagine, in particular in the case of a collective swimming pool, to have the filtered aspirations at one end of the edge of the basin and the backdrafts opposite, thus creating a river effect on the surface of the water.
• the conventional filter 12 has been shown arranged downstream of the circulation pump; its location could however be different, or even this filter could be deleted.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Water Supply & Treatment (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Filtration Of Liquid (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Jet Pumps And Other Pumps (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=8862667

Family Applications (1)

Country Status (7)

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Family Cites Families (12)

• 2001
  • 2001-04-25 FR FR0105556A patent/FR2823988B1/fr not_active Expired - Fee Related
• 2002
  • 2002-04-22 EP EP02726267A patent/EP1381743B1/de not_active Expired - Lifetime
  • 2002-04-22 DE DE60218026T patent/DE60218026T2/de not_active Expired - Lifetime
  • 2002-04-22 US US10/311,067 patent/US6830680B2/en not_active Expired - Lifetime
  • 2002-04-22 WO PCT/FR2002/001370 patent/WO2002086259A1/fr active IP Right Grant
  • 2002-04-22 ES ES02726267T patent/ES2281514T3/es not_active Expired - Lifetime
  • 2002-04-22 PT PT02726267T patent/PT1381743E/pt unknown

Non-Patent Citations (1)

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