Multifunctional anti-incrustation corrosion inhibitor and preparation method thereof

Abstract

The invention discloses a multifunctional anti-incrustation corrosion inhibitor and a preparation method thereof. The multifunctional anti-incrustation corrosion inhibitor is used as a water treatment agent for industrial circulating cooling water, a heating network system and a low-pressure boiler and is prepared from the following components in percentage by mass: phosphate, sulfonate, phosphonate, polycarboxylic acid, azoles and water. The preparation method comprises the following steps of: sequentially adding the components into a reaction vessel at normal temperature, and then stirring,dissolving and mixing to form a finished product. The multifunctional anti-incrustation corrosion inhibitor confirms to the national DL / T806-2002 (electric power) and SH 260407-2003 (petrochemistry) standards of the anti-incrustation corrosion inhibitor for circulating cooling water, can be applied to various water treatment systems and used as the water treatment agent for water with various qualities, and can be directly applied to the water treatment system to play the roles of anti-incrustation, incrustation removal, corrosion mitigation and concentration ratio increase, thereby achievingthe purposes of incrustation prevention and removal as well as water saving.

Description

Technical field [0001] The invention relates to a multifunctional scale and corrosion inhibitor and a preparation method thereof, which are used as a water treatment agent for industrial circulating cooling water, heating network systems and low-pressure boilers. Background technique [0002] At present, people's treatment of industrial circulating cooling water system, heating network system and boiler water scaling needs to be carried out under shutdown or production shutdown. The first two need to be cleaned with acid, which will not only affect normal production, but also It causes the corrosion of the equipment itself, and the boiler is treated with alkali to soften the scale. It is not only corrosive, but sometimes requires manual hammering to remove it, which is time-consuming and labor-intensive. In addition, in the existing water treatment agents, different treatment agents are used to remove scales in different systems, which have a single function, such as: anti-scalin...

AI Technical Summary

Problems solved by technology

[0002] At present, people need to deal with scaling of industrial circulating cooling water system, heating network system and boiler water under the condition of shutting down and stopping production. The descaling of the former two requires acid cleaning, which not only affects normal production Corrosion of the equipment itself is caused, and the boiler is treated with alkali to soften the scale, which not only has a certain degree of corrosion, but sometimes requires manual hammering and shoveling to remove it, which is time-consuming and laborious

In addition, in the existing water treatment agents, different treatment agents are used to remove scale in different systems, and the functions are single, such as: those with anti-scaling functions have no anti-scaling function, and those with anti-scaling functions have no anti-scaling function. Those used in cooling water cannot be used in heating networks or low-pressure boilers, those used in surface water cannot be used in groundwater, those used in high alkali and high hard water cannot be used in negative hard water, and those used in low concentration ratios cannot be used in high concentration. magnification, etc. Therefore, the existing water treatment agent formulations are varied, causing a lot of inconvenience in the process of use