Liquid purification or separation – Diverse distinct separators – Including a filter
Patent
1996-09-03
1997-10-07
Lithgow, Thomas M.
Liquid purification or separation
Diverse distinct separators
Including a filter
210308, 210259, 210262, 210411, 210415, 494 36, 494 49, 494 65, C02F 900, B01D 3600, B04B 906
Patent
active
056743920
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
A fluid treatment assembly is already known, which assembly comprises, on the one hand, a filter constituted of at least one filtering element, and on the other hand, a centrifuging device which device comprises a rotary centrifuging enclosure provided with an admission conduit.
In this known treatment assembly, the centrifuging treatment device is separated from the filter and is connected therewith via conduits external to each of said two treatment and filtering devices.
Such a treatment assembly is bulky, its cost price is high and it is subject to accidents, particularly where the external connection conduits are concerned. Moreover, the filter is generally a filter with disposable filtering elements.
BACKGROUND OF THE INVENTION
It is the object of the present invention to overcome said drawbacks by providing a filter that comprises a device for cleaning each filtering element including a rotary distributor driven by a motor and designed to periodically isolate one part of the filtering surface in order to enable the cleaning thereof with clean fluid flowing backwards through each filtering element and then into the centrifuging device, for purifying same, via an evacuation conduit.
Therefore according to the invention, the filtering element or element and the centrifuging enclosure are contained in a single casing, while the evacuation conduit for the cleaning fluid filled with impurities issues directly into the admission conduit of the rotary enclosure.
The advantageous following dispositions are also preferably adopted: of said two conduits, while the other end of the admission conduit is fixed on said single casing; which, at the same time, obturates said other end; at least one outlet nozzle for the centrifuged fluid, which nozzle is oriented substantially perpendicularly to a radius passing through the axis of rotation of said centrifuging enclosure, in such a way that said centrifuging enclosure is driven in rotation by the reaction of the fluid coming out of said outlet nozzle or nozzles with respect to the fluid contained in the casing; elements of the filter and the fluid treated by the centrifuging treatment device, are provided in said single casing, said chambers being separated one from the other by a fluidtight partition wall.
DISCLOSURE OF INVENTION
The invention offers the following main advantages: compactness of the treatment assembly, reliability of said assembly, and reduced production costs compared with the prior constructions.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be more readily understood and secondary characteristics and their advantages will emerge from the following description of one example of embodiment.
It is to be understood that the description and drawings are only given by way of indication and non-restrictively.
Reference will be made to the accompanying drawings, in which:
FIG. 1 is an axial section of a treatment assembly according to the invention,
FIG. 2 is a section along II--II of FIG. 1, and
FIG. 3 is a section along III--III of FIG. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The fluid treatment assembly illustrated in the figures comprises a filter and a centrifuging treatment device, both of them being contained in a single casing 1 made up of two parts 1A, 1B, assembled by bolts.
The filter, which is contained in part 1A of the casing, comprises: filtering elements 5, each one of which is shaped into a filtering disk 9, with two screens 6; each bore belonging to one of the filtering disks 9, in tight contact with the cylindrical external face 10 of a liner 11, which liner comprises a bore 15 co-axial to the axis 7; contact with a bore 13 provided in the intermediate wall 2, said wall being itself tightly assembled to pans 1A and 1B of the casing; 16 of which bears tightly against the bore 15 of the liner 11, and which communicates with an evacuation conduit 17 provided in the fluid distributor 12, coaxial to axis 7; opposite the intermediate wall 2; provided inside the part 1A of the casing, contains
REFERENCES:
patent: 2750107 (1956-06-01), More
patent: 2792172 (1957-05-01), Tait
patent: 3231182 (1966-01-01), Downey
patent: 3432091 (1969-03-01), Beazley
patent: 3599792 (1971-08-01), Stripp
patent: 3944488 (1976-03-01), Moatti
patent: 4221323 (1980-09-01), Courtot
patent: 4557831 (1985-12-01), Lindsay
patent: 4615315 (1986-10-01), Graham
patent: 4640772 (1987-02-01), Graham
patent: 4787975 (1988-11-01), Purvey
Christophe Theophile
Moatti Jean-Claude
Lithgow Thomas M.
Moatti Filtration S.A.
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