Basic Principles

By electrolyzing seawater to produce sodium hypochlorite (NaClO) or other chlorinated compounds, which have strong oxidizing properties and can effectively kill microorganisms in seawater and preventing corrosion to seawater pipe and machinery.

Reaction equation:

Anodic reaction: 2Cl ⁻ → Cl ₂ ↑+2e ⁻

Cathodic reaction: 2H ₂ O+2e ⁻ → H ₂ ↑+2OH ⁻

Total reaction: NaCl+H ₂ O → NaClO+H ₂ ↑

Main components

Electrolytic cell: The core component is usually made of corrosion-resistant materials (such as titanium based coated DSA anodes and Hastelloy cathodes) to ensure equipment lifespan and efficiency.

Rectifiers: convert alternating current into direct current, providing stable electrolysis voltage and current.

Control system: Automatically adjust electrolysis parameters, monitor equipment operation status, and ensure safe and efficient operation.

Pre treatment system: filters impurities in seawater, protects electrolytic cells, and extends equipment life.

Application advantages

Anti fouling effect: The generated sodium hypochlorite can prevent marine organisms from adhering to the surface of the seawater pipe, pump, cooling water system, and other machinery and platform, reduce the corrossive to seawater using facilities.

Disinfection effect: Effectively kills bacteria, viruses, and other microorganisms in seawater, ensuring the safety of water use on the platform.

Environmental friendliness: Using seawater as raw material, reducing the use of chemical agents, and minimizing the impact on the marine environment.

Implementation

Install electrolysis equipment, introduce seawater into the electrolysis cell, and produce sodium hypochlorite solution through electrolysis.

Use the generated sodium hypochlorite solution for disinfection and anti fouling treatment in the seawater using system of the platform.

Precautions

Equipment maintenance: Regularly inspect electrolysis equipment to ensure its normal operation.

In summary, electrochlorination technology has a dual function of anti fouling and disinfection on offshore drilling platforms, but attention should be paid to equipment maintenance and safe operation.