FR2841234A1 - Ultraviolet filtration procedure for swimming pool containing aquatic vegetable ecosystems uses water flow varied by two alternating systems - Google Patents

Abstract

The filtration procedure consists of maintaining a minimal water circulation inside at least one ultraviolet filter, varying the filtered water flow according to the use made of the pool by means of two alternating circulation systems. The filtration apparatus consists of two conduits (100, 200) with pumps (P1, P2) having different output rates and linked to circulate water through an ultraviolet sterilizer (F). It has a third conduit (300) fitted with a compressor (330) delivering water under pressure to a robot cleaner. The inlets and outlets (110, 160, 350) of the different conduits are located above water level.

Description

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  FILTRATION PROCESS AND DEVICE FOR THEIR

IMPLEMENT

  FIELD OF APPLICATION OF THE INVENTION

  The present invention relates to the field of methods as well as filtration and oxygenation equipment for the waters of a basin capable of being supplied as well.

  for swimming as for the development of ecosystems.

DESCRIPTION OF THE PRIOR ART

  There exist in the prior art so-called natural basins which have the particularity, beyond allowing swimming, to be adapted to the development of aquatic ecosystems capable of ensuring in part

  or in total the water purification at said basin.

  These natural basins must be equipped with a means of oxygenation of water in order to promote development

said ecosystems.

  The development of these ecosystems therefore comes against conventional filtration processes which have the principle of destroying as far as possible any microorganism. These microorganisms are however useful

  ecosystem audits and must therefore be protected.

  Thus, while the water in a conventional bathing basin is conventionally treated with chemicals such as chlorine, the water in a so-called natural basin must respect these ecosystems in order to maintain them so that their biological activity can ensure

elimination of impurities.

  The filtration associated with such a basin therefore presents specificities of implementation. Indeed, the basin even lorequtil is not used as place of bathing must be able to provide for the needs in particular of oxygenation of said ecosystems. Unlike conventional swimming pools, the filtration module cannot remain inactive when the pool is not used as a swimming pool at the risk of seeing micro-organisms developed in ecosystems die and be replaced by s - 2 - undesirable micro-organisms leading to a deterioration in the quality of the water. Likewise, this filtration cannot be equivalent to that implemented for a basin designed specifically for swimming, at the risk of seeing the same ecosystems die. In order not to use chemicals, filtration of the type using a filter or a

  ultraviolet sterilizer can be used.

  However, as explained above, filtration by generation of ultraviolet rays can, when the basin is used as a swimming pool, be insufficient or when the basin remains a piece of ornamental water, be oversized. Of course, it is possible to have several ultraviolet lamps in order to vary the filtration power, but this solution is not simple and requires a large budget. In addition, a failure of the filtration pump would result in the death of the ecosystems provided in the

pool.

  It is also possible to vary from

  the flow rate of a single ultraviolet filter.

  However, pumps with variation of flow present the disadvantage of being less manageable than that presenting a single flow and do not decrease, on the contrary, the

risk of technical failure.

DESCRIPTION OF THE INVENTION

  On the basis of this state of affairs, the plaintiff has carried out research aimed at ensuring sufficient filtration of the waters of a basin in order to give them a cited quality of bathing in order to promote, while controlling them, the development of the ecosystems participating in the filtration.

and to the ornament of said basins.

  These researches led to the conception of a particularly original filtration process allowing to respond favorably to the needs of filtration - 3 in which living organisms are accepted but

  controls according to the use of the basin.

  According to the invention, the method of filtering the water of a basin having plant aquatic ecosystems and capable of serving as bathing water is remarkable in that it consists in maintaining a minimum circulation of water inside '' at least one ultraviolet filter and to vary the flow of filtered water according to the use made of the basin using at least two means of circulating

water operating alternately.

  This characteristic is particularly advantageous in that it makes it possible to envisage a minimum filtration or sterilization when the basin remains an amenity basin and a maximum filtration or sterilization when the basin is used for

swimming.

  This minimal filtration does not constitute inferior sterilization. Indeed, a lower flow will allow the water to spend more time in the ultraviolet filter or sterilizer allowing the destruction of microorganisms impossible to remove during a passage at high flow and therefore too fast. In addition, this minimum circulation makes it possible to maintain minimum oxygenation of the water in the basin necessary for the survival of microorganisms developed by ecosystems.

present in the basin.

  In addition, doubling the circulation means is particularly advantageous in that it eliminates the risk of death of the ecosystems in the event of

  failure of a means of circulation.

  The invention also relates to the device.

  allowing the above-described method to be implemented.

  This device is remarkable in that it comprises two conduits each equipped with a pumping means of different flow rate and arranged in derivation one with respect to the other, the two conduits joining together to circulate the water put in motion by their respective pumping means inside dion sterilizer generator

ultraviolet rays.

  Apart from the functional aspects, the invention presents structural specificities particularly

  advantageous which will be described below.

  Indeed, the fundamental concepts of the invention having just been set out above in their most basic form, other details and characteristics will emerge more clearly on reading the

  description which follows and with reference to the accompanying drawings,

  giving by way of nonlimiting example, an embodiment of a filtration device in accordance with

the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

  Figure 1 is a hydraulic diagram of an embodiment of the filtration device of the invention, Figure 2 is a schematic drawing in perspective

  of the embodiment of Figure 1.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS

  As illustrated in the drawings of FIGS. 1 and 2, the filtration device reference D as a whole comprises two pumping means P1 and P2 ensuring respectively a high flow rate and a teas flow rate through the same ultraviolet filter reference F. As illustrated, the pumping means P1 and P2 are placed on different lines 100 and 200, the line 200 being arranged in parallel with the

conduct 100.

  The main pipe 100 is fitted to include the following elements: - a bulkhead crossing flange 110 which allows it to communicate with a pool (not shown) of water previously filtered at least by decantation, - a first valve 120 for controlling the the arrival of c 1 r water to be filtered, - a "T" connection, reference T1 ensuring the continuity of the main pipe 100 as well as the branch to the pipe 200, - a non-return valve 130 allowing the liquid to pass from T1 to P1 and avoiding a return of the water set in motion by P1, - the ultraviolet filter or sterilizer F. - a non-return valve 140 allowing the liquid to pass from the filter F to the crossing flange 160 correspond to the outlet and therefore at the point of discharge of the filter liquid to the basin, - a second valve 150 for controlling the

  water circulation towards the outlet.

  The presence of said check valve 140 at the discharge point is particularly advantageous in that it also prevents the introduction of any aquatic fauna and flora towards said sterilizer when

  the pumping means wind at a standstill.

  The bypass line 200 starting from the connection T1 is fitted to include the following elements: - a second "T" connection T2 allowing the circulation of water on the one hand towards P2 and on the other hand towards a third line 300 of which the function will be explained below, - a non-return valve 210 authorizing the liquid to pass from the pumping means P2 towards the filter F by joining the main pipe section 100 present

between filter F and pump P1.

  The presence of valve 210 prevents the water put in

  movement through P1 does come in line 200.

  Thus, according to the particularly advantageous but nonlimiting embodiment illustrated, the filtration device D of the invention further comprises a third line 300 equipped with a compressor supplying 6 - pressurized water to a cleaning robot. More precisely, the third pipe 300 starting at the second branch of the fitting T2 comprises the following elements: - a first control valve 310 ensuring the opening or closing of this pipe 300, - a non-return valve 320 authorizing the passage of the water to the compressor 330 but avoiding the return of water coming from the latter, - a rear control valve 340 controlling the opening or closing of the line 300 towards the

  crossing flange 350 to the outlet.

  While the second line has the function of bringing the water to the second pump P2 to ensure the circulation of the water at low flow rate, the third line 300 has the function of bringing in a compressor 330 which feeds a cleaning robot of the pool type sweep "(not shown) in pressurized water. Indeed, this type of robot cannot be activated by setting in motion the water proposed by the pumps which have a large flow

  but which cannot provide sufficient pressure.

  Thus, according to an automatic or semi-automatic cycle, the compressor starts to allow the cleaning robot to operate. This functionality will only be optional. To this end, the Applicant has provided quick couplings 360 and 370 allowing the installation or the uninstallation of said compressor 330. Likewise, the closing of valves 350 and 370

  will enable inactivation of line 300.

  In accordance with the process of the invention, the functioning of the filtration device is as follows When the basin is used as a swimming pool tent or when the climatic conditions require it, the high flow pump P1 is used and the water to be filtered passes at high speed. inside the F - 7 sterilizer

  to be subjected to ultraviolet radiation.

  When the basin is not used as a bathing pool and the climatic conditions do not require it, the small flow pump P2 operates alone, the water passing more slowly through the sterilizer F. The operation of the compressor 330 is independent. According to a preferred embodiment, P1 is a high flow pump providing 40 to 50 cubic meters per hour and P2 is a small flow pump providing approximately 16

cubic meters per hour.

  The arrangement of the different soul-assemblies constituting the filtration device is particularly studied. Thus, the orifices or points of entry and exit or discharge of water from

  different lines 100, 200 and 300 wind located above

  below the level of the basin water with which the filtration device D communicates. In addition, the number of parts constitutes the

  device D has been reduced to the maximum.

  According to a preferred embodiment, the sterilizer F consists of a container uniting at least three ultraviolet emission tubes as well as an air evacuation valve in its upper part. In addition, according to a characteristic that is not illustrated, the container of ultraviolet emitting tubes is equipped with at least one

  purge at the bottom to allow drainage.

  The process of the invention contributes to this function by providing several water flows, thus avoiding excessive regularity in the pipes and in the

  sterilizer, regularity favoring the deposit of impurities.

  In order to obtain a particularly compact filtration device and to reduce pressure losses as much as possible, the number of elbows has been reduced to the maximum. To this end, the sterilizer F is kept suspended, by means of stirrups provided for this purpose, from the non-illustrated ceiling of the technical room containing the device D. Likewise, in order to prevent the weight of the compressor 330 and of the pump P2 is not completely supported by the conduits, these latter elements are supported by platforms bearing on the floor of the technical room in which the device of the invention is placed. These platforms, by helping to support the weight of the soul-assemblies, also have the utility of keeping raised above the ground and of keeping these soul-assemblies at the level of their connection with the conduits and thus of avoiding unnecessary lengthening of the conduits. or section of pipes or the use of elbows. The presence of these platforms therefore also contributes to meeting the criterion of compactness sought.

  by the applicant for this type of equipment.

  For information, the embodiment of the illustrated filtration device contains in a parallelepiped of three meters in length on one meter

  fifty wide and one meter twenty-five high.

  In addition, flanges and other fittings including those related to pumps and the wind compressor may be fixed by screws and / or bolting. Also, the different functional soul-assemblies of the device D of the invention will be easily assembled or disassembled. The presence of control valves at the start and end of each line allows each portion to be isolated for repair or

of maintenance.

  It is understood that the method and the filtration device, which have just been described and represented above, have been for the purpose of disclosure rather than limitation. Of course, various arrangements, modifications and improvements could be made to the above example, without going beyond the ambit of

  the invention as defined in the claims.

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Claims (8)

REVENDXCATIONS   1. Process for the filtration of water from a basin presenting plant aguatic ecosystems and capable of serving as bathing water, CHARACTERISTIC IN THAT it consists in maintaining a minimum circulation of water inside at least one ultraviolet filter and vary the flow of filtered water according to the use made of the basin using at least two means of circulating the water operating in alternately.   2. Filtration device (D) making it possible to implement the method according to claim 1, CHARACTERIZED BY THE FACT THAT it comprises two conduits (100, 200) each equipped with a pumping means of different flow (P1, P2 ) and arranged in dActivation with respect to each other, the two pipes (100, 200) meeting to circulate the water set in motion by their respective pumping means (P1, P2) inside a   sterilizer (F) generator of ultraviolet rays.   3. A filtration device (D) according to claim 2, CHARACTERIZED BY THE FACT THAT it comprises a third line (300) equipped with a compressor (330) supplying pressurized water to a cleaning robot. 4. A filtration device (D) according to claim 2, of the type of one whose conduits (100,, 300) communicate with at least one basin, CHARACTERIZED BY THE FACT THAT the entry and discharge points (110, 160 , 350) of water from the different pipes (100, 200, 300) wind located below the level pond water.   5. A filtration device (D) according to claim 2, CHARACTERIZED BY THE FACT THAT said sterilizer (F) consists of a container equipped with minus a purge.   6. Filtration device (D) according to claim 10, of the type of that contained in a technical room, CHARACTERIZED BY THE FACT THAT said sterilizer   (F) is kept suspended from the ceiling of the technical room.   7. A filtration device (D) according to claim 2, CHARACTERIZED BY THE FACT THAT the pumping means (P2) present on the second pipe (200) thus   that the compressor (330) is supported by platforms   forms them now raised above the ground.   8. Filtration device (D) according to claim 10, CHARACTERIZED BY THE FACT THAT said delivery point (160) is equipped with a non-return valve (140) preventing the introduction of any aquatic fauna and flora towards said sterilizer (F) when the means   pumping (P1 and P2) wind stopped. WATERWEED VICARIOUS