Liquid purification or separation – Magnetic
Patent
1991-07-31
1992-06-02
Dawson, Robert A.
Liquid purification or separation
Magnetic
210695, C02F 148
Patent
active
051184168
ABSTRACT:
For better efficiency in removing scale and deposits in pipes, a high gauss permanent magnet unit, requiring no servicing or external power, mounts on the exterior surface of the pipes for establishing a flux path encompassing a greater portion of the flow path than heretofore feasible. Even more effectiveness results from mounting units in diametrically opposed pairs. The units have a pair of Alnico 8 magnetic plates held in an array to straddle an arc on the pipe surface to focus the magnetic flux into a prefered pattern into the fluid flow path. By blending a diverse permanent magnetic circuit path from a neodymium iron boron magnet, a multi-pole, multi-axial magnetic flux generator uniquely distributes and concentrates enough magnetic force for more effectively penetrating and treating fluid flow within iron walled pipes. These units can change hard calcite scale within pipes in the presence of fluid flow into soft aragonite/vaterrite crystals which are easily cleaned by flushing with liquid to dissolve existing scale, and also effectively prevent new scale formation on pipe walls.
REFERENCES:
patent: 4747874 (1988-05-01), Ghandehari
patent: 4873504 (1989-10-01), Blume, Jr. et al.
patent: 5037546 (1991-08-01), Janczak et al.
patent: 5055189 (1991-10-01), Ito
Janczak Andrew
Krensel Edward
Brown Laurence R.
Dawson Robert A.
Enecon Corporation
Savage Matthew O.
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