What is the specific role of boiler deoxygenation agent in preventing boiler corrosion?

The dissolved oxygen in boiler feedwater and boiler water is the main cause of corrosion of metal equipment such as boiler bodies, pipelines, economizers, and heat exchangersBoiler deoxygenation agentThe core function is to eliminate dissolved oxygen, passivate metal surfaces, suppress corrosion from the root, and extend equipment life.

1、 The specific function of boiler deoxygenation agent

Quickly remove dissolved oxygen from water

Deoxidizer can react chemically with oxygen in water, reducing dissolved oxygen to harmless substances, avoiding oxidation corrosion (oxygen corrosion) between oxygen and metal inner walls, and preventing pitting, pitting, thinning of pipe walls, and perforation.

Form a dense protective film on the metal surface

High quality deoxidizers also have passivation function, forming a uniform and stable passivation protective film on the inner walls of boiler steel plates and pipelines, isolating the corrosion of metals by water, oxygen, and salts, and improving corrosion resistance.

Inhibit electrochemical corrosion

The formation of primary batteries in boiler water systems can easily lead to electrochemical corrosion. Deoxidizers can reduce corrosion current, stabilize water quality potential, reduce local corrosion and stress corrosion, and protect weak parts such as welds, elbows, and valves.

Prevent oxygen corrosion from extending and expanding

Once localized oxygen corrosion occurs, corrosion pits will quickly form and expand. The deoxidizer continues to remove oxygen, stabilize water quality, prevent further development of corrosion points, and avoid accidents such as pipe bursts and leaks.

Assist in stabilizing boiler water quality and reducing scaling

Partial composite deoxidizers can adjust pH value, stabilize iron ions, reduce rust deposition and secondary scaling, make heat transfer more effective, reduce energy consumption, and reduce corrosion under scale.

Protect the entire process of water vapor system

Not only does it protect the boiler drum and water-cooled wall, but it also protects the economizer, water supply pipeline, and steam pipeline, avoiding oxygen corrosion along the entire line from the front to the back.

2、 Summary

Boiler deoxygenation agentCore values:

Remove dissolved oxygen and prevent oxygen corrosion

Form a protective film to suppress electrochemical corrosion and subsurface corrosion

Extend the service life of boilers, pipelines, and valves

Reduce the risk of leakage, pipe bursting, and shutdown maintenance