Coastal Power Plant
Coastal power plant refers to a power plant built in coastal areas (near bays, ports or coastlines), mainly utilizing marine resources or geographical advantages of the coast for energy production.Seaside power plants usually use seawater as circulating cooling water (such as for condensing steam turbines). Barnacles, mussels, algae, bacteria and other organisms in seawater will attach and multiply on the inner walls of pipes and the surfaces of heat exchangers, forming biofilms or hard shell-like fouling.
Electrochlorination system is mainly used in the seawater circulating cooling systems of coastal power plants to prevent marine organisms from attaching (i.e., for anti-fouling). This is a key technology for solving the problem of equipment efficiency decline and pipeline blockage in coastal power plants caused by marine biological pollution.
The principle of Electrochlorination system production is to electrolyze seawater to generate strong oxidizing substances. Through the application of direct current electricity in the electrolytic device, an electrochemical reaction occurs to produce hypochlorous acid. Hypochlorous acid has strong oxidizing properties and can damage the cell structure, enzyme system and genetic material of microorganisms, inhibiting the attachment and growth of marine organisms. The effective concentration is usually controlled at 0.5-1.0 ppm. This can prevent fouling while avoiding excessive corrosion of equipment and the environment.
- Advantages:
Compared with traditional anti-fouling methods, Electrochlorination system generation is highly automated, generating the agent on demand, and residual chlorine can naturally decompose, resulting in good environmental performance. It is effective against both microorganisms and encased organisms. It can continuously inhibit biological fouling at all stages and is suitable for marine environments.
- Disadvantages:
The initial investment is relatively high, and electrodes need to be replaced regularly.
Composition of Electrochlorination system:
- Electrolytic cell
- Control and monitoring system
- Titanium anode
