Cathodic protection of circulating water system

The main factors to be considered are as follows:

1. Coupling of various materials, such as copper and steel, steel and titanium, etc;

2. The influence of temperature;

3. The influence of flow velocity;

4. The impact of water quality;

5. The influence of overburden.

Due to the influence of flow rate, the protection current in circulating water is generally large. For example, the protection current density of power station cooler of seawater cooling water given by British standard is 2.0a/m. The protection current can be provided by sacrificial anode or forced current. The advantage of forced current is that the current can be changed manually or automatically to ensure full protection no matter how the flow rate and composition of circulating water are changed.

Sacrificial anode can't adjust the current arbitrarily like the forced current system. In large-scale power station, frequent replacement of sacrificial anode is not only high cost, but also quite laborious, so sacrificial anode is mostly used in small equipment. For regular maintenance of the equipment, it can provide an opportunity to replace the sacrificial anode. In dangerous equipment, sacrificial anode is superior to forced current.

Shandong Linyi Bosi conductive materials Co., Ltd. is a high-tech enterprise specializing in the production of MMO flexible anode, conductive polymer flexible anode and titanium coated anode, mainly providing cathodic protection technology, engineering design, installation and technical services.

Tel: +86 17568010262，0539-3712117.