SWIMMING POOL Russian patent published in 2008 - IPC E04H4/16 

FIELD: construction, water supply.

SUBSTANCE: principle applies to construction of individual and communal swimming pools with a bleed system of water filtration. A swimming pool has a water tight enclosure and bleed channel. The front wall of the bleed trough is done below the level of its back wall and is furnished with bleed channels facing inside and floating flexible bleed mats. Lids of the bleed channels have partitions with wedge shaped parts facing down. At the ends of the wedged partitions, towards the pool reservoir, there are grates for the initial filtration of water. At the end of the wedged partition surfaces, towards the bleeding channels, there is a metallic grate for second filtration of water. Along the bottom of the bleeding channels there are porous materials with low hydraulic resistances, made in the form of polyurethane foam blocks, compactly placed one to the other with spaces relative to its walls. They are clasped above the base of sedimentation trays, which is paced on the whole perimeter of the bleed channel. They are compactly joined between one another in a closed ring and has a front wall with downward inclined shelves in the direction of the pool and walls bending down and abutting on the bottom edge of the bleed channel and forming the front wall of the bleed channel. On the inclined shelves there is an internal edge of the bleed mat and is clasped to the top of the lower frame plank of the inclined grate, and a downward bend shelf which is covered by a spacing of the front wall in which the whole perimeter has through holes. From the side of the reservoir, the through holes are closed by valves in the form of dangling down stripes of the internal edge of the bleed mat. Part of the bleed channel that is between the filtrating material and the front wall, is connected by pipes with suction fittings of an electric pump. The back wall of the sedimentation channels have upward shelf inclined in the direction of the bleed mat up to the inclined grate with through windows, closed from the side of the bleed mat by filtrating micro grits for water cleaning. The bleed mat is made of brush cilium, placed along its external edge. The shelves of the back wall are made up with an inclination angle , that ensures interaction of brush cilium with surfaces of the filtration micro grits which are positioned toward it at any operational position of the bleed mat. The principle ensures the necessary level of water cleaning in case of a non regular or short-lived use of a pool in which the water self cleaning system becomes less effective.

EFFECT: ensuring water cleaning in case of a non regular or short-lived use.

2 cl, 3 dwg