Ceramic filter filtration apparatus for purifying swimming pool water
First Claim
1. A ceramic filter filtration apparatus for purifying swimming pool water, comprising a plurality of concentric cylindrical housings nested within each other, each housing having an outer and an inner cylindrical wall and two annular end walls closing spaces between the outer and inner walls, and each housing having an outlet conduit in fluid communication externally of a respective said cylindrical housing, said plurality of housings comprising a first radially outermost housing, a second housing nested within the first housing, a third housing nested within the second housing, and a fourth housing nested within the third housing, a cylindrical porous ceramic filter through which said first and second housings fluidly communicate with each other, one of a disinfection means for the pool water and an adsorption means for adsorbing impurities from the pool water being disposed in said third housing, said third and fourth housing in fluid communication with each other through an outer wall of said fourth housing.
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Accused Products
Abstract
The method of cleaning porous ceramic filters with a backwashing apparatus comprising an accelerating circulation path and a unit for mixing accelerated water with high-pressure air can be implemented with compact equipment to achieve efficient cleaning. The pool water purifying apparatus and system that adopt this method of cleaning porous ceramic filters comprise a filtering means that uses the ceramic filters, a disinfecting means and an adsorbing means and, optionally, an ultrafiltration means as an additional filtering means, and are capable of removing not only bacteria but also viruses so that the water purified by this apparatus and system may be as clean as potable water. Such an extremely high efficiency of water purification achieved by the apparatus and system can be maintained over a prolonged period since both the filtering and adsorption means can be cleaned by backwashing. The purifying apparatus is compact but it can be made further compact and allows for simpler installation work if the individual means of purification are integrated into a unitary assembly. The purifying system permits the water in a plurality of pools having different water temperatures to be purified efficiently with a single unit of the purifying apparatus.
50 Citations
20 Claims
- 1. A ceramic filter filtration apparatus for purifying swimming pool water, comprising a plurality of concentric cylindrical housings nested within each other, each housing having an outer and an inner cylindrical wall and two annular end walls closing spaces between the outer and inner walls, and each housing having an outlet conduit in fluid communication externally of a respective said cylindrical housing, said plurality of housings comprising a first radially outermost housing, a second housing nested within the first housing, a third housing nested within the second housing, and a fourth housing nested within the third housing, a cylindrical porous ceramic filter through which said first and second housings fluidly communicate with each other, one of a disinfection means for the pool water and an adsorption means for adsorbing impurities from the pool water being disposed in said third housing, said third and fourth housing in fluid communication with each other through an outer wall of said fourth housing.
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7. A ceramic filter filtration apparatus for purifying swimming pool water comprising:
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a plurality of concentric cylindrical housings, each housing having an outer and an inner cylindrical wall and two annular end walls closing spaces between the outer and inner walls, and each housing having outlet conduits in fluid communication externally of a respective said cylindrical housing, a cylindrical central housing having two end walls and a outlet conduit in fluid communication externally of said cylindrical central housing, wherein openings are provided in the inner wall of a first housing being situated on a outermost side and the outer wall of a second housing inscribed in the inner wall of the first housing among said plurality of the cylindrical housings so as to interconnect both spaces of the first and second housings and a cylindrical porous ceramic filter for filtering pool water is accommodated within at least one of the spaces of the first and second housings and the openings in such a way that the ceramic filter covers the openings, and wherein one of a disinfecting means for disinfecting the pool water filtered by the ceramic filter and an adsorbing means for adsorbing the pool water filtered by the ceramic filter or disinfected by the disinfection means is accommodated within at least one of the spaces of a third housing arranged inside the second housing and a fourth housing inscribed in the third housing among said plurality of the cylindrical housings, and openings are provided in the inner wall of the third housing and the outer wall of the fourth housing inscribed in the inner wall of the third housing so as to interconnect both spaces of the third and fourth housings. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification