F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
150/19, 324/26,
F22B 35/12 (2006.01) F22B 37/54 (2006.01) F22B 37/56 (2006.01) F22D 11/00 (2006.01)
Patent
CA 1294672
MONITORING AND CONTROLLING AVT (ALL VOLATILE TREATMENT) AND OTHER TREATMENT PROGRAMS FOR HIGH PRESSURE BOILERS VIA THE CONDUCTIVITY CONTROL METHOD Abstract of the Disclosure 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 tempera- ture, conductivity at operating temperature, temperature and pH of cooled boiler water, and then carrying out calculations to detenmine the estimated treatment chemical concentration and estimated boiler water conductivity, noting the critical conduc- tivity 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 toler- able high temperature conductivity value (M) 9 followed by making any necessary adjustments to the chemical feedrate and diagonal or blowdown rate depending upon aforesaid comparison,
611611
Betz Laboratories Inc.
Borden Ladner Gervais Llp
Muccitelli John A.
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