Liquid purification or separation – Tangential flow or centrifugal fluid action
Patent
1980-07-03
1982-09-14
Wyse, Thomas G.
Liquid purification or separation
Tangential flow or centrifugal fluid action
210513, B01D 2126
Patent
active
043494412
ABSTRACT:
Method and apparatus for treating raw water by introducing the raw water and a flocculating agent into a cylindrical container, preferably in a tangential manner of flow between the cylindrical container wall and a baffle spaced radially inward from the container wall, flowing the fluid radially inward towards the center of the container to a central conduit extending axially upward in the container and opening at the internal bore of the conduit through the bottom of the container, the central conduit being surrounded by a coaxial pipe having a plurality of circumferentially defined, spaced openings therein to induce a radial, i.e., from the wall of the container to the central conduit, flow of water with minimal axial flow components in order to facilitate settling of the flocculated particles from the treated water. Preferably the coaxial pipe is divided into a plurality of sections, each section including a solid portion and an opening with the solid portion and opening being of a constant overall dimension, but with the opening increasing relative to the solid portion with greater spacing from the bottom of the container in order to compensate from the suction effect of fluid flowing between the coaxial pipe and the conduit. Also, the cross sectional area defined by the annulus between the coaxial pipe and central conduit is preferably substantially the same as the area of the conduit bore.
REFERENCES:
patent: 3406825 (1968-10-01), Schouw
patent: 3444077 (1969-05-01), Finch
patent: 4297221 (1981-10-01), Moll et al.
patent: 4299703 (1981-11-01), Bezard et al.
Grohmann Andreas
Hasselbarth Ulrich
Marks Helmuth
Moll Hans-Georg
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