Liquid purification or separation – Constituent mixture variation responsive
Patent
1993-07-30
1994-07-26
Drodge, Joseph W.
Liquid purification or separation
Constituent mixture variation responsive
204433, 2101981, 210746, 210700, 324438, B01D 1712
Patent
active
053324943
ABSTRACT:
An automatic control system for maintaining the quality of water in a cooling tower utilizes a probe (38) which senses the oxygen reduction potential (ORP) of a soap having a 1:1 stoichiometric equivalent of mineral acid and ammonia or amine in the water. The soap is pumped from a chemical supply means (20) containing the soap in response to the ORP of the soap in the water falling below a predetermined threshold. A second sensing probe measures the conductivity (in MHos) of the water as a factor of the total dissolved solids (TDS) to control the bleed-off or blow-down of the water. The chemicals, which are supplied for maintaining the ORP, permit significantly higher total dissolved solids in the water than with standard cooling tower systems, without the buildup of scale. As a consequence, water consumption is significantly reduced; and the system functions automatically, without requiring periodic visual inspection, water analysis or manual operation.
REFERENCES:
patent: 3308161 (1967-03-01), Shen
patent: 3627032 (1971-12-01), Glad
patent: 3628663 (1971-12-01), Derham
patent: 3788340 (1974-01-01), O'Leary
patent: 3805880 (1974-04-01), Lawlar
patent: 3825483 (1974-07-01), Nakamura
patent: 4464315 (1984-08-01), O'Leary
patent: 4681686 (1987-07-01), Richardson et al.
patent: 4767511 (1988-08-01), Aragon
patent: 4818412 (1989-04-01), Conlan
patent: 4836239 (1989-06-01), Kinkead
patent: 4931187 (1990-06-01), Derham
patent: 4963815 (1990-10-01), Hafeman
patent: 5218304 (1993-06-01), Kinlen et al.
patent: 5268092 (1993-12-01), Eden
Eden Todd R.
Ludwig Jerome H.
Drodge Joseph W.
h.e.r.c. Incorporated
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