APPARATUS FOR MONITORING CHLORINE CONCENTRATION

摘要

PROBLEM TO BE SOLVED: To improve maintainability by highly accurately monitoring effective chlorine concentration in generated strongly acidic water even by intermittent measurements and extending the life of the monitoring apparatus by this. SOLUTION: When a predetermined time has elapsed, the operation of shear pumps 24 and 25 are restarted to start the operation of sucking strongly acidic water and strongly alkaline water generated by a strongly electrolytic water generator 11 and feeding them to a liquid tank 28 for mixing. After 15 minutes when the operation of the pumps 24 and 25 are stabilized, only the liquids fed by the pumps 24 and 25 in which the quantity of flow is stabilized remain in the liquid chamber 28 of an overflow chamber to stabilize its mixture ratio. Since effective chlorine concentration is measured through the use of the output of a spectroscope assembly 34 at this time, it is possible to highly accurately monitor the effective chlorine concentration even by intermittent measurements and extend the lives of the pumps 24-27 by this.