METHOD AND SYSTEM FOR CONTROLLING DOSING OF CHEMICAL PRODUCTS Russian patent published in 2020 - IPC C02F1/68 

FIELD: chemistry.

SUBSTANCE: invention relates to a control method for regulating dosing of a chemical product in a circulating hydraulic circuit comprising two or more branches. Dispensing device is configured to dispense, at its activation, at least one corresponding chemical product in a circulating hydraulic circuit. In the normal state, wherein the fluid flow rate determined in two or more corresponding branches is not lower or not higher than the corresponding flow rate threshold, activation of the dispenser is permitted. In case of error condition when flow rate of one of said two or more liquid flow rates is lower or not higher than corresponding flow rate threshold, activation of said metering device is prohibited for duration of time equal to recovery time, wherein said fluid costs causing the error state are restored to a value not lower than or a value higher than the corresponding flow threshold value, to which additional prohibition time is added.

EFFECT: reduced probability of error during dosing and consumption of chemical product.

4 cl, 2 dwg