Automatic dosing control system and method suitable for electric furnace water system

Abstract

The invention provides an automatic dosing control system and method suitable for an electric furnace water system, and belongs to the field of industrial circulating water control. An index detectionsystem is arranged in the automatic dosing control system, monitors various indexes of water in a water pool in real time and transmits the indexes to the control system, and when the hardness of thewater in the water pool is larger than or equal to a hardness threshold value, the control system controls a sewage pump to be started until the hardness is smaller than the threshold value, at the moment, the real-time water storage amount of water in the pool is smaller than the specified water storage amount set in the control system, a water supply valve is controlled to be opened, water is supplemented to the pool till the water storage amount is equal to the specified water storage amount, the water supply valve is closed, and water changing in the pool is achieved; and then the controlsystem judges whether indexes in the water pool reach the standard or not, and the indexes in the water pool reach the standard through starting of a dosing pump or flow adjustment. The control system is convenient to maintain, the capacity of water in the pool can be accurately maintained, and various indexes in the pool can be automatically detected and accurately adjusted in real time.

Description

technical field [0001] The invention belongs to the field of industrial circulating water control, and in particular relates to an automatic dosing control system and a control method suitable for an electric furnace water system. Background technique [0002] Circulating water dosing device is a new concept of chemical water treatment dosing equipment, which is widely used in boiler water treatment systems, raw water treatment systems and wastewater treatment systems in industries such as thermal power generation, petroleum and chemical industry. It is composed of metering pumps, solution tanks, control systems, pipelines, valves and other components installed on the same base to realize the functions of drug solution dispensing and metering dosing. According to its use, it is divided into hydrazine deoxygenation dosing device, corrosion inhibitor dosing device, pH value adjustment acid (alkali) device and ferrous sulfate coating dosing device, etc. According to its form, ...

AI Technical Summary

Problems solved by technology

When the existing circulating water dosing device is in use, although various monitors are used to monitor the water quality and water storage capacity of the pool for dosing or replenishing water, it is impossible to accurately grasp the amount of water added or the amount of dosing

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