FR2835010A1 - METHOD FOR CIRCULATION AND CLEANING OF SWIMMING POOL WATER, IMPLEMENTATION OF A SYSTEM FOR IMPLEMENTING THE METHOD AND ADAPTED FLOW MULTIPLIER - Google Patents

Abstract

The invention relates to a method for circulating and cleaning swimming pool water, an installation of a system for implementing the method and a suitable flow multiplier. According to the invention, the method of circulating and cleaning swimming pool water using at least one pump for circulating the water, a filter (35) and a cleaning brush outlet (19), is characterized in that that the actuation of the brush outlet automatically short-circuits all the other suction outlets of the pump.

Description

at least one masonry element (1) of higher rank (1 a).

  The subject of the present invention is a filtration method for swimming pools which makes it possible to considerably improve the efficiency of filtration by increasing the flow rate of filtered water without however increasing the power of the pumps required for circulating the water, thus that a cleaning process considerably improving the efficiency of the broom that

we pass manually.

  The invention also relates to a particular layout of the circulation system, as well as flow multiplier devices.

  used in combination in this layout.

  o In a previous patent application France, n 01/05556 of April 25, 2001, the inventor of the present application has already described an improved filtration process for swimming pools as well as a water flow multiplier

  used in connection with this process.

  The present invention further improves the installation by making it

  s even more efficient and practical to use.

  To this end, the method of circulating and cleaning swimming pool water using at least one pump for circulating the water, a filter and a cleaning brush connector, is characterized according to the invention in that the m ise in action of the brush plug automatically short-circuits all the other pump suction plugs. In this way, the passage of the broom is on the one hand made much more efficient, as will be explained in detail below, and is much more practical, because the user no longer has to

  worry about opening and closing various valves.

  According to another characteristic of the process of the invention, the brush outlet being located at the most appropriate place against the interior wall of the swimming pool, the water circulation pump is located near this outlet, in a compartment provided on the beach bordering the swimming pool. In this way, the pressure drops are considerably reduced, and the pump being able to be placed below the normal level of swimming pool water, there are no more problems of defusing and it is possible to use pumps which are not not self-priming and have a yield

much better hydraulics.

  According to another characteristic of the invention, there is provided a filter between the brush outlet and the water suction pump. In this case, the filter being placed upstream of the pump, this filter is housed in a compartment which is fixed to a formwork panel of the concrete wall of the pool behind the edge of the structure. In this way, we obtain a very efficient filtration of the water sucked by the mop and therefore a very effective cleaning of the pool, while the installation of the system is

particularly simple.

  According to another characteristic of the process of the invention, when the brush outlet is not used, the suction of the water is done only by a short conduit in connection with the bottom drain. In this way, when

  normal filtration the best use is made of the power of the pump.

  According to yet another characteristic of the process of the invention, the discharge of the pump is used at the level of flow multipliers arranged near skimmers. In this way, the filtration efficiency is considerably multiplied; in a practical way when using the invention in this way, it is possible to multiply by a factor of about four the flow of filtered water for an electrical consumption of the engine.

  o identical pump drive.

  According to an advantageous characteristic of the invention, the installation of the system is thus made that each flow multiplier is housed in a compartment which advantageously comes to be fixed to a panel of

  formwork of the concrete wall of the pool behind the edge of the structure.

  Advantageously, the admission of water to the flow multiplier is done by means of a filter, housed in a compartment which is also fixed to a formwork panel of the concrete wall of the swimming pool behind the edge of the structure, which compartment receives water from the skimmer. In this way, the efficiency of the surface cleaning of the water is considerably increased, that is to say the efficiency of the surface skimmers known in the "skimmers" technique, while there

  again, installation is very simple.

  According to yet another characteristic of the invention, advantageously flow multipliers are used, characterized in that they essentially have the shape of a Kaplan elbow, and receive the pump delivery flow partly in the axis of the Venturi formed towards

  exit from the elbow and partly tangentially at the Venturi.

  The invention and its implementation will become more clearly apparent with the aid of

  of the description which follows, made with reference to the appended drawings, in

  which: FIG. 1 schematically illustrates a conventional circuit for filtering and circulating the water of a swimming pool; Figure 2 illustrates a top view of the swimming pool basin equipped with the filtration and circulation circuit shown diagrammatically in Figure 1; FIG. 3 illustrates, like FIG. 2, a filtration circuit and circulation of the water of a swimming pool modified according to the principle of the invention; Figure 4 shows schematically, in perspective, the location of the brush outlet, the associated filter and the installation pump; FIG. 5 shows in vertical section, the location of the brush outlet and o of the associated filter; FIG. 6 schematically shows, in perspective, the preferred installation of a flow multiplier and of the associated skimmer and filter; Figure 7 shows in perspective view a practical embodiment: s possible of the device illustrated in Figure 6; FIG. 8 shows a practical embodiment of a formwork panel which can be used to fix the brush outlet, the filter and the associated pump, as shown diagrammatically in FIG. 4; Figure 9 shows in perspective view a part of the device used so illustrated in Figure 8; FIG. 10 shows the two main parts constituting a water flow multiplier device constructed in accordance with the invention, FIG. 11 shows the flow multiplier device of FIG. 10 assembled; and Figure 12 shows, seen from the outside of the pool, the mounting of the

  water flow multiplier associated with the filter placed upstream of the skimmer.

  First of all, reference is made to FIGS. 1 and 2 of the drawings which 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 pool in a shallow area and on the opposite a deeper pool with a diving pit in which

  located in the center and at the bottom point a bottom drain.

  We have thus indicated in these diagrams, at 10 a pump body driven by an electric motor 11, at 12 a filter, sand or cartridge, at 13, 15, 16, 17 and 17 ', various valves making it possible to open or to close the pipes on which these valves are mounted. There is thus in 18 a pipe which opens in 19 on a brush outlet, in 20 a pipe which opens on the bottom drain 21, in 22 a pipe

  o which leads to a skimmer 23 or at 22, 22 'to two skimmers 23, 24.

  All these pipes are connected through valves 15, 16, 17 and 17 'to a pipe 25 which communicates with the suction side of the pump 10. On the discharge side, the pump 10 sends the water to be filtered through a pipe 26 into the 12.1 filter filtered water being discharged through the valve 13 s open to a discharge nozzle 27 or more generally two nozzles

  delivery 27, 28 by pipes 29, 29 '.

  If it is assumed for example that the flow rate of the pump 10 is 10 m3 / h under a pressure of approximately 1 bar, that is to say that it is a standard standard pump, (in the continuation we will simply say 10 m3), the flow rates at suction and discharge are as indicated in the diagrams, and for example in the case of two discharges to nozzles 27, 28 and three aspirations respectively to the bung of bottom 21, and at skimmers 23, 24, we will have a discharge flow of 5 m3 at each nozzle 27, 28, a suction flow for example of 5 m3 at the bottom drain 21, and two flows

  2.5 m3 of suction respectively to the two skimmers 23 and 24.

  If you want to pass the brush connected to the socket 19, close the suction valves 16, 17 and 17 'and open the valve 15 of the brush. There is thus a suction flow of 10 m3 (the flow of the pump 10) to pass the

  broom in the most efficient conditions.

  We will now refer to the diagram of Figure 3 in which o the same reference numerals designate elements similar to those of Figure 2. Thus, in Figure 3, we find the pool of the pool with a bottom drain 21, a broom socket 19, two skimmers 23,24, one

  pump 10 driven by its electric motor 11.

  Contrary to what happens in a classic installation, the motor pump group 10,11 is not located above the pool plan in a more or less distant technical room, but is housed in a compartment 30, located near the broom outlet on the beach which borders the swimming pool, as will be explained in more detail below. As a result, the length of the pipes is considerably shortened, and the pressure losses are therefore reduced to the strict minimum. On the other hand, the pump being located below the normal level of water in the pool, the pump no longer needs to be of a self-priming type, and can therefore be constructed more simply, being less expensive, and having a significantly improved hydraulic efficiency. Under these conditions, a pump of the same: 5 electric power as that of FIG. 2 will be able in practice under an output pressure at least equivalent to have a flow rate of 20 m3 instead

  10 m3 in the case of the conventional installation in Figure 2.

  Furthermore, in accordance with the invention, the discharge flow rate of the pump will be able to be divided into two flows which will be used, close to the skimmers 23,24, to actuate flow multipliers 31,32, which will be described in detail later, and which will allow to suck at the level of the skimmers 23,24 about 20 m3 each. By placing suitable filters behind the skimmers, 33,34, we will therefore be able to obtain at these skimmers a filtration flow rate considerably increased by

  compared to conventional filtration as illustrated in the diagram in FIG. 2.

  In addition, in the installation shown diagrammatically in FIG. 3, it can be seen that upstream of the pump 10, a filter 35 is placed in a compartment 36 adjacent to the compartment 30, and which will be able to effectively filter the water sucked by the pump, when it is sucked in via the connection pipe with the bung 21, or when it is sucked in via the brush (not shown) which has been fixed on the brush socket 19. This latter arrangement is more particularly illustrated in the diagram of Figure 4, which we will

report now.

  As illustrated in Figure 4, the motor pump group consisting of the pump 10 and the electric motor 11, is connected by a pipe 37 to a filter 35 placed inside a circular cylindrical container 38 forming a housing for the filter. 35 and which communicates in leaktight manner with the suction pipe 37 of the pump. The assembly of this set will be more

  particularly described in relation to Figure 8.

  Returning to the diagram in Figure 4, we see that the container 38 o communicates at its upper part with the water suction pipe from the bottom drain 21 (via a pipe 39) or coming from the brush outlet 19, if the brush is used, as will be explained in more detail with reference to FIG. 5. Advantageously, above the filter 35 is placed a basket 40 which allows the largest to be collected particles sucked in, for example leaves. The assembly being submerged under water as it is understood in FIG. 5, the seals do not need to be ensured and there is no risk of defusing the pump. A simple cover 41 (FIGS. 5 and 8) closes the upper part of the container 38 while the duct 39 comes out into the

  n / a volume of container 38 under the cover.

  We will now refer to the diagram in FIG. 5, which allows a better understanding of the operation of the suction part of the installation. In this diagram, the bottom drain which equips the bottom wall 71 of the swimming pool is illustrated at 21, and we see the conduit 39 for connection with the container 38 which houses the filter 35 and the basket 40 under the cover 41. At the base of the container 38, the departure of the suction pipe 37 for the pump has been illustrated. The water level of the swimming pool is illustrated at 42, and the basin communicates by a conduit shown schematically in dotted lines referenced 70 in FIG. 5, and as will be better understood in relation to FIG. 9 with the upper part of the container 38 which is co iffed by a cover 4 1 so installed that it ensures watertightness

  sufficient for the suction circuit by the pump, because it is submerged.

  In 43, a swimming pool coping has been illustrated, and in 44 a slab, a grating or a tilting cover which allows access to the

  s compartment of the container 38, and in particular to the basket 40 and to the filter 35.

  It is observed that the filter 35 can advantageously be a very large area filter, which will therefore ensure very efficient filtration with the loss

minimum load.

  If you want to pass the brush (not shown), simply connect its o suction pipe 45 by inserting the end of the pipe 46 into the brush socket by lifting the cover (Figure 5) 19 normally closed. The nozzle 46 having a diameter just slightly smaller than that of the pipe 47 which communicates with the interior of the container 38 and with the pipe 39 for sucking water from the bung 21, its introduction into the pipe 47 closes the water coming from the pipe 39, so that all the suction flow from the pump 10 passes through the pipe 45 of the brush. In other words, in the envisaged case of a pump having a flow rate of 20 m3, the brush will suck 20 m3 under a maximum vacuum, due to the proximity of the pump body. In addition, by simply inserting the nozzle 46 into the brush outlet 19, the user will automatically neutralize the suction of the pump on other water inlets, without

have to operate valves.

  Reference will now be made to FIG. 6, in which the installation of a flow multiplier according to the invention has been illustrated at level s of a skimmer. This is, for example, such a device mounted at the level of the skimmer referenced 24 in FIG. 3. In the hypothesis of the same installation as illustrated in FIG. 3, arrives via the pipe 48, 20 m3 of water pump discharge. This flow is divided into 10 m3 for the flow multiplier 32 mounted near the skimmer 24, and 10 m3 to supply the second flow multiplier 31 to the skimmer 23. The 10 m3 of supply to the flow multiplier 32 is divided themselves in two currents of 5 m3, which, as can be clearly seen in the drawing in Figure 6, are directed respectively, one in the axis of the Venturi 49 via an axial duct 50, I another tangentially at the Venturi via a conduit 51. In practice, with such a flow multiplier, an output flow to the multiplier of the order of 30 m3 is obtained, so that to supply this flow, these are 20 m3 which must be sucked in by the skimmer 24 which communicates, through a filter 53 housed in a sealed compartment 54 with a pipe 55 which communicates at the inlet of the multiplier of

flow 32.

  Figure 7 shows a practical way in which the assembly of Figure 6 can be carried out. Thus, in this figure we see the entry of the skimmer 24 provided in the wall of a formwork panel 56 of the concrete wall of the swimming pool . To this panel is attached the container 54 which houses the filter 53 as explained in FIG. 6. In a similar manner to what has been explained in relation to FIG. 5, the upper part of the container 54 is located under the level of the water contained in the pool and communicates with it. A folding grating 57 is provided for access to the interior of the container 54 to the filter 53. When the concrete is poured from the wall 68 of the structure (fig. 5) the concrete will also fill the space referenced 58 surrounding the upper part forming the housing of the filter 53. In connection with this figure, it can be seen that the entry, or mouth, of the skimmer 24 is set back on the wall of the basin, so that it will be possible without difficulty to use

  roller shutter (not shown) for the pool cover.

  Referring to Figure 8, there is illustrated similar to Figure 7, a formwork panel 59 of the concrete wall of the structure, behind which has been fixed the container 38 which houses the filter 35 (fig. 5 ) behind socket 19 for the broom. Access to the interior of compartment 38 is made, as for the

  Figure 7, by means of a tilting grating 44.

  With reference to FIG. 9, it can be seen that, as in the embodiment of FIG. 7, all around the upper part of the container 38 is provided a space 58 ′ for the pouring of the concrete and the good resistance in

  place of the device in the pool structure.

  Reference will now be made to FIGS. 10 and 11 in which an embodiment of a flow multiplier has been illustrated which comprises an elbow s known in the art under the name of Kaplan elbow. As has already been explained with reference to FIG. 6, this flow multiplier 32 will receive for its operation a first axial flow through the conduit 50 and a second radial flow at the Venturi (not visible in the figure) through the conduit 51. For practical construction, the multiplier 32 is made up of two assembled parts 32a and 32b. An air intake can also be provided, for example by a small pipe 52 which will open out at the Venturi, a device being provided which more or less opens the section of this

air intake hose.

  Referring to Figure 12, we illustrated how such a flow multiplier s 32 could be mounted behind a formwork panel 63 of the concrete wall of the pool communicating next to the container 54

  housing the filter 53 with the access grating 57 inside the container 54.

  The entry of the skimmer 24 communicates of course with the upper part of the container 54, and in this upper part is formed the volume 58 so for the pouring of the concrete in this part. (See also figure 7). In 59, we

  see figure 12 an overflow pipe.

  Of course, many variant embodiments can be provided. For example, although it has been illustrated that the pump was supplied with the normal filtration circuit by the only bottom drain, it could very well be expected, as in conventional installations, that the suction is also done in parallel for example on one or two skimmers. In this case, advantageously, the derivation of these suction pipes in relation to the skimmers will be done upstream of the connection between the pipe 39 and the pipe 47 (fig. 5); in this way, when the end piece 46 is plugged into the

  o brush outlet 19, all the aspirations are automatically short-circuited.

  Likewise, it is possible to provide, instead of a filter 35 upstream of the pump 10, a sand filter 60 (FIG. 3) downstream of the pump, if the installation

uses a sand filter.

283501 O

Claims (13)

  1. Method for circulating and cleaning swimming pool water using at least one pump (10) for circulating water, a filter (35, 60) and a cleaning brush outlet (19), characterized in that that the actuation of the sweep plug automatically short-circuits all the other plugs of the pump.   2. Method according to claim 1, characterized in that the brush outlet (19) being located at the most suitable place against the interior wall of the pool, ia pump (10) for circulating the water is located near this socket, in a compartment (30) provided on the beach bordering the pool.   3. Method according to claim 1 or claim 2, characterized in that between the brush outlet (19) and the water suction pump (10) is provided at least one filter (35).   s 4. Method according to any one of the preceding claims,   characterized in that when the brush outlet is not used, the suction of the water is done only by a short conduit (39) in connection with the drain bottom (21).   5. Method according to any one of the preceding claims,   o characterized in that the pump discharge is used at   flow multipliers (31, 32) arranged near skimmers (23,24).   6. Installation of a swimming pool water circulation and cleaning system for implementing the method according to any one of the   previous claims, characterized in that the sweep plug is formed   by a submerged orifice normally closed by a cover (19) into which the end piece (46) of the end of the hose (45) of the brush is introduced, which end piece, when fully inserted, short-circuits the inlet water from of the bottom drain (21).   7. Installation of a circulation and cleaning system for swimming pool water so as to implement the method according to any one of the   Claims 1 to 5, characterized in that the filter (35) being placed in   upstream of the pump, this filter is housed in a compartment (38) which is fixed to a formwork panel (59) of the concrete wall of the swimming pool behind the edge of the structure.   8. Installation of a swimming pool water circulation and cleaning system for implementing the method according to claim 5, characterized in that each flow multiplier (31, 32) is housed in a compartment which comes attach to a wall formwork panel (63)   in concrete of the swimming pool behind the edge of the work.   o 9. Installation of a swimming pool water circulation and cleaning system according to claim 8, characterized in that the admission of water to the flow multiplier takes place via a filter (53) , housed in a compartment (54) which is attached to a formwork panel (63) of the concrete wall of the pool behind the edge of the structure, which   s compartment receives water from the skimmer (24).   10. Installation of a swimming pool water circulation and cleaning system according to claim 9, characterized in that the mouth of the   skimmer is set back from the pool wall.   11. Installation of a circulation and cleaning system for swimming pool or water according to claim 7 or claim 9, characterized in that the compartment (38, 54) is integrated at its upper part in a   space (58, 58 ') filled with concrete integral with the structure of the pool.   12. Flow multipliers for the implementation of the method of claim 5, characterized in that they essentially have the form of a Kaplan bend, and receive the delivery flow of the pump partly in the axis of the Venturi formed towards the outlet of the elbow and partly   tangentially at the level of the Venturi.   13. flow multiplier according to claim 12, characterized in that there is provided an adjustable air intake at the venturi of the multiplier