1.Seaside power plants commonly use electrolytic seawater chlorination systems, which generate effective chlorine (about 1 ppm) by electrolyzing sodium chloride in seawater, inhibiting microbial attachment and reproduction in cooling system pipelines, filters, and seawater desalination pretreatment systems
2.System composition and reliability: The main equipment includes rectifier transformers, rectifiers, and electrolytic cells, which need to solve problems such as low current efficiency and short anode life.
3.Application of emerging hydrogen production technologies
4.Integration of green hydrogen production and renewable energy: With the development of offshore wind power and photovoltaics, direct electrolysis of seawater for hydrogen production has become an important direction. For example, the world’s first set of 200 standard cubic meters per hour seawater electrolysis hydrogen production equipment has achieved a hydrogen purity of 99.999%, suitable for offshore oil and gas platforms and deep sea scenarios.
5.Catalyst innovation: By using non precious metal catalysts (such as CoO Cr ₂ O3, RuMoNi) and corrosion-resistant design, the problems of chloride ion corrosion and side reactions have been solved. For example, NiCoP – Cr ₂ O ∝ cathode achieves stable operation for over 1000 hours in seawater electrolysis.
6.High efficiency and low energy consumption: Hybrid electrolysis technology (such as sulfur ion oxidation reaction assistance) reduces energy consumption to one-third of conventional electrolysis, with voltage below 1 V.

In summary, the application of seawater electrolysis systems in seawater power plants covers both traditional pollution prevention and emerging hydrogen production fields, and its continuous technological progress provides environmentally friendly and efficient solutions for coastal and offshore energy systems.

Maintenance cycle of seawater electrolysis system

7.Regular inspection and maintenance: The seawater electrolysis system needs to be regularly inspected and maintained to ensure its normal operation. It is usually recommended to conduct an inspection every 3 to 6 months, including the dissolution of the anode and the integrity of the connection parts.

8.Electrolytic cell components: The electrolytic cell is one of the core components of the seawater electrolysis system and requires special attention to its working status. If scaling or corrosion is found in the electrolytic cell, acid washing or other cleaning measures should be taken in a timely manner.

9.Electrical system: Maintenance of the electrical system is also very important, including inspection and maintenance of equipment such as low-voltage distribution cabinets, operation control cabinets, and rectifier power supplies.

10. Filter: As an important component of seawater electrolysis systems, filters need to be regularly cleaned or replaced according to specific situations to maintain efficient water purification capacity. In general, high-efficiency filters may be replaced every 1 to 2 years, while physical filters or filter cartridges may require more frequent cleaning or replacement.

In summary, the maintenance cycle of seawater electrolysis systems should be determined based on specific usage conditions and water quality conditions, but it is generally recommended to conduct a comprehensive inspection at least every 3 to 6 months and carry out corresponding maintenance and upkeep as needed.