Corrosion inhibiting and descaling agent of industrial cooling circulating water system

Abstract

The present pertains to the field of chemical industry, wherein an antisludging agent for industrial circulating water systems is disclosed, which comprises acroleic acid-acrylate-petroleum sulfonate copolymer, mercaptobenzothiazole, sodium humate, lignin and water. The antisludging agent has good protection action to industrial cooling-water systems.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a corrosion and scale inhibitor, more specifically, the invention relates to a corrosion and scale inhibitor for industrial cooling water systems. Background technique [0002] The cooling water system used in industry will inevitably produce scale and rust during long-term circulation, which will reduce the thermal efficiency by an order of magnitude. The water evaporates in the cooling tower, so that the salt content in the circulating water gradually increases, and the carbon dioxide in the water decomposes and escapes in the tower, which increases the tendency of calcium carbonate in the water to scale and precipitate on the heat transfer surface. After the scale and rust are generated, not only a lot of energy is wasted, but also the service life of the entire system is greatly reduced due to the rusting of pipelines and equipment, causing many unnecessary losses. Moreover, t...

AI Technical Summary

Problems solved by technology

However, because industrial systems are usually relatively large and difficult to replace, it is necessary to find non-corrosive cleaning, corrosion and scale inhibitors, so that they will not cause chemical damage to the system while performing cleaning and protection functions.

[0003] At present, the commonly used single-compound corrosion and scale inhibitors are difficult to completely solve the problems of corrosion and scaling in water treatment systems.