Circulating cooling water non-phosphorus scale and corrosion inhibitor on-line measuring device and measuring method

Abstract

The invention discloses an online measuring device and method for a non-phosphorus scale and corrosion inhibitor of circulating cooling water. The device comprises a sampling unit, a dosing unit and a detection and control unit, the sampling unit comprises a sampling electric valve, a flow cell and a stirrer; the sampling electric valve is communicated with a water sample inlet of the flow cell through a pipeline, and the stirrer is arranged in the flow cell; the dosing unit comprises a coloring agent volumetric flask and a buffer solution volumetric flask; the coloring agent volumetric flask and the buffer solution volumetric flask are respectively connected with the flow cell through liquid dropping pipelines; the control unit comprises an embedded controller, a light source emitter and a light sensor; the light source emitter and the light sensor are arranged at opposite positions on the flow cell; and the light source emitter and the light sensor are electrically connected with the embedded controller. According to the invention, the on-line measurement of the phosphorus-free scale and corrosion inhibitor of industrial circulating cooling water can be conveniently realized without manual intervention.

Description

technical field [0001] The invention relates to the technical field of on-line measurement of water treatment agents in industrial circulating cooling water, in particular to an on-line measuring device and method for non-phosphorous scale and corrosion inhibitors in circulating cooling water. Background technique [0002] Industrial circulating cooling water is called the blood in the industrial production system, and the operation of industrial circulating cooling water needs to be monitored and reasonably controlled in time, otherwise it will easily lead to scaling or corrosion of the circulating cooling water system; once scaling or corrosion occurs in the circulating cooling water system , ranging from reducing production efficiency, to stopping production for maintenance or scrapping equipment. Among them, in order to avoid or slow down the scale or corrosion of the circulating cooling water, most of the circulating cooling water systems currently adopt the treatment m...

AI Technical Summary

Problems solved by technology

Although the manual detection method is relatively mature, it is cumbersome to operate and needs to be equipped with testing personnel, which increases the labor cost of operation, and the inspection interval is large, so it is impossible to carry out online monitoring of the content of phosphorus-free scale and corrosion inhibitors in circulating cooling water, and the monitoring lags behind the operation; The tracer indirect monitoring method needs to add a tracer to the medicament, which increases the cost of the medicament and may pollute the environment

These lead to untimely monitoring and control of circulating cooling water, and the influence of human factors is great. It is not suitable for automatic control or intelligent operation, causing hidden dangers in production safety, and even scaling or corrosion cannot be found.

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