RU94023814A - Meter of total alkalinity in solution - Google Patents

Abstract

FIELD: measurement technology, potentiometric measurement of alkalinity in analyzed solutions. SUBSTANCE: proposed meter has flow potentiometric cell 9 with analyzed solution 13, measuring electrode 10 for determination of pH, auxiliary electrode 11, ion-selective electrode 12 to determine pCO,, unit 1 measuring pH, unit 2 measuring pCO,, analog-to-digital converter, calculator 4 of concentration of ions OH,, calculator of concentration of ions CO, calculator 6 of concentration of ions HCO, adder-calculator of total alkalinity, digital-to-analog converter 8. EFFECT: high-precision of determination of total of total alkalinity in drinking water and sewage, chemical preparation of water for boiler.

Claims (1)

The total alkalinity meter in solution refers to the potentiometric measurement of alkalinity in the analyzed solutions and allows you to determine the total alkalinity in drinking and wastewater, as well as in chemical water treatment for boiler units. The total alkalinity meter in the solution contains a flow potentiometric cell with the analyzed solution, a measuring electrode for determining pH, an auxiliary electrode, an ion-selective electrode for determining pCO $\genfrac{}{}{0ex}{}{\text{2-}}{\text{3}}$ pH measuring unit, pCO measuring unit $\genfrac{}{}{0ex}{}{\text{2-}}{\text{3}}$ , analog-to-digital converter, OH ^- ion concentration calculator ^- , CO ion concentration calculator $\genfrac{}{}{0ex}{}{\text{2-}}{\text{3}}$ HCO ion concentration calculator $\genfrac{}{}{0ex}{}{\text{-}}{\text{3}}$ , total alkalinity adder, digital-to-analog converter. The proposed total alkalinity meter in solution is characterized in that in order to increase the accuracy of determining the total alkalinity, the meter additionally includes an analog-to-digital converter 3, an OH ^- hydroxyl ion concentration calculator, a CO ^- carbonate ion concentration calculator $\genfrac{}{}{0ex}{}{\text{2-}}{\text{3}}$ , bicarbonate ion concentration calculator HCO $\genfrac{}{}{0ex}{}{\text{2-}}{\text{3}}$ , total alkalinity adder, digital-to-analog converter.