Liquid purification or separation – Filter – With pump – gas pressure – or suction source
Patent
1997-01-08
1998-06-02
Lithgow, Thomas M.
Liquid purification or separation
Filter
With pump, gas pressure, or suction source
210346, 210461, 210486, 376313, G21C 19307, B01D 2941, B01D 3502, B01D 35027
Patent
active
057593990
ABSTRACT:
A suction strainer for straining water from the emergency suppression pool of a boiling water reactor includes a plurality of stacked, perforated disks having an internal core with a minimum internal radius r(x) that decreases with increased distance from the intake of the strainer, so that the core has a tapered profile. Internal radius r(x) may vary linearly or exponentially or a combination of both. The stacked, perforated disks each include a first surface that faces in the direction of the intake and a second surface, that faces away from the intake. A circumferential band may connect the first and second surfaces together.
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"New ideas for cylindrical pipe intakes can help reduce fish and larvae kills" by R.T. Richards, Burns & Roe, Inc., Jun., 1980, edition of Power Magazine, pp. 64-67.
Bilanin Alan J.
Kaufman Andrew E.
Continuum Dynamics, Inc.
Lithgow Thomas M.
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