A cleaning composition and process capable of effective descaling and less corrosive

Abstract

This application relates to the field of chemical scale removal, and specifically discloses a cleaning composition and process that can effectively remove scale and is less corrosive, and a cleaning composition that can effectively remove scale and is less corrosive, in terms of mass percentage , including the following components: inorganic acid 2.0-6.0%, corrosion inhibitor 0.1-0.8%, surfactant 0.03-0.09%, ethanol 0.5-3.6%, and the balance is water; The low-level cleaning process includes the following steps: mix the corrosion inhibitor, surfactant, ethanol and water and pump them into the system to be cleaned for uniform circulation, and finally pump the inorganic acid into the system to be cleaned for circulation until scale Cleared. It has the advantages of high cleaning rate and low corrosion to aluminum and copper pipes.

Description

technical field [0001] This application relates to the technical field of chemical scale removal, more specifically, it relates to a cleaning composition and process which can effectively remove scale and have low corrosion. Background technique [0002] As long as there is water circulation, there will be mineral scale. These mineral scale deposits will increase energy consumption and material consumption, cause economic losses, and even vicious explosions. These problems have been widely used in various fields such as industry, commerce, civilian use, and military use. Behaved very well. [0003] In seawater desalination equipment, aluminum brass is used as the main condensing pipe fitting, and its scale will have a great impact on the seawater desalination process. At present, the main methods for removing scale include inorganic acid cleaning, organic acid cleaning and physical cleaning. Inorganic acid cleaning such as hydrochloric acid, sulfamic acid, hydrochloric aci...

AI Technical Summary

Problems solved by technology

Inorganic acid cleaning such as hydrochloric acid, sulfamic acid, hydrochloric acid has low cost and good descaling effect, but it is volatile, improper use will corrode and damage the equipment, and it is easy to rust again after cleaning; sulfamic acid is stable at room temperature, non-volatile, non-volatile Moisture absorption, can react with a variety of alkaline compounds and metal oxides, and has a good cleaning effect on copper pipes; cleaning with organic acids such as glycolic acid, formic acid, and oxalic acid is mild in acidity, safe for handling, but requires high temperature cleaning, high cost, and poor descaling power ;Physical cleaning is difficult for equipment with complex structure and insoluble hard scale, and may cause local damage

It is difficult to ensure a high cleaning rate and less corrosion to aluminum and copper pipes

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