Dirt: Dirt is mainly composed of organic matter in water, microbial colonies and secretions, sediment, dust, etc. The texture of the dirt is soft, which not only reduces the heat transfer efficiency, but also causes corrosion under the dirt.
Corrosion: The corrosion of circulating cooling water on heat exchange equipment is mainly electrochemical corrosion, which is caused by equipment manufacturing defects, sufficient oxygen in water, corrosive ions (CI-, Fe3+, CU2+) in water and mucus secreted by microorganisms The consequences of corrosion are very serious, and the equipment can be scrapped in a very short time without control.