Automatic control system for water quality of industrial boiler

Abstract

The invention provides an automatic control system for water quality of an industrial boiler. The automatic control system comprises an automatic dosing system, an automatic sewage discharging system, an automatic monitoring system and a PLC central control system, wherein the automatic dosing system is connected with a dosing opening of the industrial boiler; the automatic sewage discharging system is connected with a sewage discharging opening of the industrial boiler; the automatic monitoring system is connected with a sampling opening of the industrial boiler; the automatic monitoring system automatically monitors the water quality of the industrial boiler in real time and transmits the monitoring results to the PLC central control system; the PLC central control system controls the dosing type, the dosing mode, the dosage and the dosing timing of the automatic dosing system according to the results, and controls the sewage volume and the sewage discharging timing of the automatic sewage discharging system. The automatic control system can automatically monitor the water quality of the industrial boiler system in real time and automatically performs dosing and sewage discharging according to the monitoring results, so as to control the water quality within the standard range.

Description

technical field [0001] The invention relates to an automatic water quality control system of an industrial boiler. Background technique [0002] At present, most of the water quality monitoring and treatment work of industrial boiler systems need to be done manually. Including: regular collection of boiler water samples, testing and analysis of PH value and related parameters, and then manually adjusting the running time of the dosing pump to change the amount of dosing. Afterwards, manually judge the time and amount of sewage discharge according to their own experience. Since the above are all manual intermittent control, it can no longer meet the needs of boiler operating conditions and changes in operating conditions, resulting in unstable chemical solubility in the feed water of the boiler system, resulting in large-scale fluctuations, which not only wastes chemical agents, but also causes pipeline damage. Oxidation corrosion or corrosion and scaling of boiler thermal ...

AI Technical Summary

Problems solved by technology

Since the above are all manual intermittent control, it can no longer meet the needs of boiler operating conditions and changes in operating conditions, resulting in unstable chemical solubility in the feed water of the boiler system, resulting in large-scale fluctuations, which not only wastes chemical agents, but also causes pipeline damage. Oxidation corrosion or corrosion and fouling of boiler thermal system caused by unsatisfactory treatment effect, affecting normal production and operation

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