Corrosion inhibition antiscale agent

Abstract

The invention relates to a corrosion inhibition antiscale agent which is composed of, by weight, 50-60 parts of anhydrous sodium carbonate, 5-10 parts of sodium tripolyphosphate, 5-10 parts of sodium hexametaphosphate and 20-40 parts of sodium humate. The corrosion inhibition antiscale agent is free of pollution to the environment, free of toxicity, small in consumption, convenient to use and low in price.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a corrosion and scale inhibitor. Background technique [0002] The industrial circulating cooling water system is a very important part of the whole system. Most of the water sources in northern my country are water with high hardness and high alkalinity, which makes the whole circulating water system prone to serious scaling and corrosion during operation, which will affect the normal operation of the heat exchanger , shorten the service life of the equipment, thereby affecting the normal and stable operation of the entire production system. Therefore, corrosion and scale inhibitors are usually used to overcome the above problems. [0003] At present, the corrosion inhibitors used in softened water systems in China mainly include molybdate, tungstate, nitrite, chromate and so on. The dosing concentration of individual components exceeds 200mg / L. Among them,...

AI Technical Summary

Problems solved by technology

And once it is used improperly, adding too much will cause calcium phosphate to form on the inner wall of the metal heat exchanger in the circulating water system, which will greatly affect the heat exchange efficiency of the heat exchanger, and it is difficult to handle

However, most of the currently used phosphorus-free or low-phosphorus corrosion inhibitors are imported from abroad, which are expensive and increase the cost of use by enterprises, so they are not widely used.