Liquid purification or separation – With repair or assembling means
Patent
1991-05-24
1993-03-16
Dawson, Robert A.
Liquid purification or separation
With repair or assembling means
210253, 210254, 21032179, 21049701, 55158, 55343, B01D 2708
Patent
active
051941490
DESCRIPTION:
BRIEF SUMMARY
This invention relates to end manifolds for filter cartridges.
DESCRIPTION OF PRIOR ART
A typical filter cartridge to which the invention may be applied is shown in our International Patent Application PCT/AU87/00309 and includes a bundle of hollow fibres within a casing. At one end of the casing there is a first header which has a feed passageway therethrough and in communication with the interior of the casing and the exterior of the fibres. The first header also has a filtrate passageway therethrough and in communication with the open ends of the fibres.
At the other end of the casing there is a second header which has a treated feed passageway therethrough and in communication with the interior of the casing and the exterior of the fibres. The second header also has a filtrate passageway therethrough and in communication with the open end of the fibres.
The passageways are formed in off-set portions of the headers that have planar end faces whereby a plurality of such cartridges may be joined together without interconnecting manifolds or pipe work to form a row of filter cartridges. A number of such rows of filter cartridges may be interconnected in spaced parallel relation to define a bank of filter cartridges.
It is an object of the invention to provide an end manifold for a row of filter cartridges and for connecting rows of filter cartridges together. It is a further object of the invention to provide a manifold which may be connected to the feed inlet and treated feed outlet of a row of cartridges and which with minor mould changes may be adapted for connection to the filtrate passageways of the row of cartridges.
SUMMARY OF THE INVENTION
According to the invention there is provided a filter cartridge connector means for a filter installation of the type in which a plurality of filter cartridges are assembled with a plurality of said connector means to form a plurality of rows of interconnected filter cartridges, characterised in that said connector means comprises a manifold having a body having planar faces at opposite ends to facilitate connection to similar adjacent manifolds, a first fluid passage through the body providing communication from one end of the body to the other so as to permit fluid connection with adjacent manifolds, a second fluid passageway adapted to be coupled to a passageway of the filter cartridge to provide fluid communication between the cartridge and the first passageway when so assembled.
Preferably, the body is formed with a recess around the opening to the first passageway in one end face for receiving an "O" ring and a bevelled annular projection around the opening to the first passageway in the other end face adapted to engage the "O" ring of an adjacent manifold. The end faces of the manifold may include locking means adapted to engage complementary locking means on an adjacent manifold.
The invention also provides a filter installation comprising a plurality of rows of interconnected filter cartridges, each said cartridge having a feed inlet, a treated feed outlet and a filtrate outlet, manifold means at each end of each row of cartridges for providing feed to each row, for withdrawing treated feed from each row and for withdrawing permeate from each row, the manifolds being interconnected so that at least two of the rows may be connected in parallel.
Preferably such a filter istallation further includes check valve means so that a first plurality of rows connected in parallel may be serially connected to a second plurality of rows connected in parallel.
The invention further provides a manifold for a filter cartridge comprising a body having substantially planar faces at opposite ends to facilitate connection to similar adjacent manifolds, a first fluid passage through the body providing communication from one end of the body to the other so as to permit fluid connection with adjacent manifolds; a second fluid passageway adapted to be coupled to a first passageway of the filter cartridge to provide fluid communication between the cartridge and the first p
REFERENCES:
patent: 4192750 (1980-03-01), Elfes et al.
patent: 4744900 (1988-05-01), Bratt
patent: 4876012 (1989-10-01), Kopp et al.
patent: 5034125 (1991-07-01), Karbachsch et al.
patent: 5089131 (1992-02-01), Gentry
Biltoft Bruce G.
Selbie Michael R. L.
Dawson Robert A.
Memtec Limited
Millard W. L.
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