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
  • E04H4/1218—Devices for removal of polluted water; Circumferential gutters
• • 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 filtration tank for a swimming pool equipped with a recovery water injection tap.
• Filtration units comprising a filtration tank containing at least one filter intended to filter the swimming pool water.
• a pump that can be associated with a flow multiplier makes it possible to create a flow of water inside the swimming pool and the filtration unit.
• the applicant proposes a system for recovering water from the swimming pool overflow into a recovery tank of several thousand liters, for example of the order of 5000L.
• the invention thus makes it possible, thanks to the recovery water injection tapping, to connect the water recovery tank to the filtration unit via a pipe connected upstream of the filter so that the recovery water which will be used to fill the pool and which may be dirty, contain algae, etc., is directly filtered and treated before supplying the rest of the pool containing clean water.
• said filtration block comprises an overflow outlet made in the wall of the filtration tank, said overflow outlet being intended to be in fluid communication with the water recovery tank.
• a non-return valve is mounted in series with the recovery water injection tapping so as to avoid gravity draining of the swimming pool basin.
• said filtration block comprises a connection fitting mounted on the recovery water injection tapping for connection with a water inlet pipe.
• said filtration unit comprises a recovery water injection pump comprising an outlet to which the water inlet pipe is connected.
• connection fitting is a union fitting to facilitate the assembly/disassembly of the water inlet pipe.
• the filter has a hollow cylindrical shape.
• the filter is preferably made of a sheet of non-woven material pleated in an accordion fashion.
• said filtration unit comprises a filtration pump comprising a variable speed, multi-speed, or fixed speed electric motor.
• the invention also relates to an assembly comprising a filtration block as previously defined and a water recovery tank in fluid communication with the recovery water injection tap.
• FIGS. 1 and 2 show a filtration unit 10 for a swimming pool comprising a filtration tank 11 having a wall 14, in particular of cylindrical shape, delimiting an internal space.
• the wall 14 of the filtration tank is made of a single material with a recovery conduit 13 (called a "skimmer" in English), preferably of flared shape, having an opening 12 opening into a volume of the swimming pool basin.
• the opening 12 can be closed by a pivoting flap.
• the recovery conduit 13 is attached and fixed to the wall 14 of the tank 11.
• the wall 14 of the filtration tank 11 has on the side of its upper end an access opening 15 intended to be located at ground level around the swimming pool.
• the access opening 15 is intended to be closed by a removable hatch (not shown).
• a first filter 16.1 ensures coarse filtration allowing particles of size to pass through less than a fraction of a millimeter on a screen filter principle.
• this first filter 16.1 consists of a molded filter basket comprising orifices formed between ribs of injected plastic material.
• a second filter 16.2 ensuring fine filtration has a hollow cylindrical shape.
• This cylindrical filter 16.2 is preferably made of a sheet of non-woven material pleated in an accordion. The sheet is held between two circular flanges and surrounded by an outer non-woven material.
• a pre-filtration means may be provided, such as, for example, a fabric with orifices of 0.1 to 0.5 mm, for example 0.3 mm.
• the filter 16.2 may be made of a woven material.
• a first conduit 17 connected to the filtration tank 11 in which a primary water flow circulates is connected to an inlet of a pump 18, which has an outlet connected to an injection inlet 19 of a flow multiplier 21.
• a second conduit 22 from the filtration tank 11 in which a secondary water flow circulates is connected to a suction inlet 24 of the flow multiplier 21.
• the flow multiplier 21, preferably of the Venturi type comprises, in a manner known per se, a convergent section and a divergent section to accelerate the water flow generated at its outlet 25. This creates a water circulation current inside the swimming pool.
• the pump 18 may comprise a variable speed, multi-speed electric motor, in order to vary the intensity of the water flow inside the pool, or alternatively at fixed speed.
• the recovery conduit 13 and the outlet 25 of the flow multiplier can open into a plate 26 integrated into a wall 27 of the swimming pool or into two separate plates.
• the filtration tank 11 comprises an overflow outlet 33 made in the wall 14 of the filtration tank 11.
• the overflow outlet 33 is intended to be in fluid communication with a water recovery tank 31.
• the overflow outlet 33 comprises a connector to which a water outlet pipe opening towards the water recovery tank 31 is connected.
• the overflow outlet 33 is made in the upper part of the filtration tank 11, upstream of the filter 16.1 and/or the filter 16.2.
• the overflow outlet full 33 can be associated with an adjustable level overflow system 32 allowing the water level in the swimming pool to be adjusted as described in the document FR3090715 .
• the filtration tank 11 also comprises a recovery water injection tapping 30 made in the wall 14 of the filtration tank 11.
• the recovery water injection tapping 30 is arranged upstream of the filter 16.1 and/or the filter 16.2.
• the recovery water injection tapping 30 is intended to be in fluid communication with a water recovery tank 31.
• the recovery water injection tapping 30 comprises a through opening made in the wall of the filtration tank 11. The through opening may be associated with a conduit made of the same material as the wall 14.
• a non-return valve 35 is mounted in series with the recovery water injection connection 30 so as to avoid gravity draining of the swimming pool.
• a connection fitting 40 is also mounted on the recovery water injection connection 30 for connection with a water inlet pipe 36.
• the non-return valve 35 may be arranged downstream of the connection fitting 40 relative to a direction of flow of the water inside the water inlet pipe 36.
• a recovery water injection pump 37 has an inlet in fluid communication with the water contained in the water recovery tank 31.
• the pump 37 may be disposed inside the water recovery tank 31 or outside the water recovery tank 31. In this case, the inlet of the pump 37 is connected to the water recovery tank 31 via a pipe.
• the recovery water injection pump 37 also has an outlet to which the water inlet pipe 36 connected to the recovery water injection tapping 30 is connected via the connection fitting 40.
• connection fitting 40 is a union fitting to facilitate the assembly/disassembly of the water inlet pipe 36.
• the union fitting 40 has two tapped and/or threaded ends.
• the union fitting 40 is for example screwed onto a threaded area of the recovery water injection connection 30.
• the 40 connection fitting is a snap-on quick connect fitting of the same type used with garden hoses.
• the recovered water injection pump 37 draws water contained in the recovery tank 37 via its inlet and delivers it via its outlet into the water inlet pipe 36 which conveys the water to the filtration tank 11 via the recovered water injection connection 30.
• the recovered water 30 is injected along the arrow F1 upstream of the filter 16.1, 16.2 of the filtration tank 11, as shown in the figure 3
• the dirty recovery water is thus filtered and treated before being returned to the swimming pool containing clean water.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Water Supply & Treatment (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Filtration Of Liquid (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=91335004

Family Applications (1)

Country Status (2)

Citations (6)

• 2024
  • 2024-01-24 FR FR2400662A patent/FR3158529A1/fr active Pending
• 2025
  • 2025-01-10 EP EP25151171.3A patent/EP4592474A1/de active Pending

Patent Citations (6)

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