Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent
1989-05-11
1990-03-06
Cohan, Alan
Fluid handling
Processes
With control of flow by a condition or characteristic of a...
122382, F22B 3754
Patent
active
049057219
ABSTRACT:
A method for monitoring and controlling the blowdown rate and chemical feed rate to a high pressure boiler involving the measurement of certain parameters including operating temperature, conductivity at operating temperature, temperature and pH of cooled boiler water, and then carrying out calculations to determine the estimated treatment chemical concentration and estimated boiler water conductivity, noting the critical conductivity ratio (CCR), noting the observed maximum tolerable high temperature conductivity value and comparing the relative conductivity ratio (RCR) with the critical conductivity ratio (CCR) and the value of the electrolytic conductivity of the boiler water at operating temperature (K) with the maximum tolerable high temperature conductivity value (M), followed by making any necessary adjustments to the chemical feedrate and diagonal or blowdown rate depending upon aforesaid comparison.
REFERENCES:
patent: 3954761 (1976-05-01), Redmore
patent: 4285302 (1981-08-01), Kelly
patent: 4406794 (1983-09-01), Brigante
patent: 4464315 (1984-08-01), O'Leary
patent: 4465026 (1984-08-01), Carberry
patent: 4639718 (1987-01-01), Gasper
patent: 4827959 (1989-05-01), Muccitelli
Betz Laboratories Inc.
Cohan Alan
Ricci Alexander D.
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