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Welcome to ZLN Technology – Your trusted partner for advanced seawater electrolysis chlorination systems. As a manufacturer based in Tianjin, China, we specialize in providing reliable and efficient solutions for biofouling control in coastal power plants. Our Coastal Power Plant Seawater Electrolysis Chlorination System is designed to prevent marine growth in cooling water circuits, ensuring uninterrupted operation and reduced maintenance costs. With years of engineering expertise and a global presence, we deliver systems that meet the toughest demands of the power generation industry.
Biofouling – the accumulation of microorganisms, algae, barnacles, and mussels – can severely impact the efficiency of seawater cooling systems. Our electrolytic chlorination system produces sodium hypochlorite directly from seawater, eliminating the need for hazardous chemical storage and transportation. This on-site generation method is both cost-effective and environmentally friendly, providing a continuous supply of disinfectant to keep your intake pipes, heat exchangers, and condensers free from fouling.
Below, we outline the key features, technical specifications, and benefits of our system. Read on to discover how ZLN can optimize your plant’s performance.
Key Features & Technical Advantages
Proven Electrolysis Technology – Uses titanium electrodes coated with mixed metal oxides (MMO) for long service life and high efficiency. The electrolytic cells are designed to operate under harsh seawater conditions.
Modular & Scalable Design – Each system is configured to match your specific flow rate and chlorine demand. Modules can be added or removed as your plant’s capacity changes.
Fully Automated Control – Equipped with a PLC-based control panel that monitors chlorine production, water flow, temperature, and system status. Remote monitoring and data logging are available upon request.
Low Maintenance – Self-cleaning electrode polarity reversal minimizes scaling and extends electrode life. Routine maintenance is simple and infrequent.
Safe & Eco-Friendly – No need to store or handle hazardous chlorine gas or bleach. Only seawater and electricity are used, producing a dilute sodium hypochlorite solution (0.1–0.3% available chlorine) that is instantly dosed into the cooling water.
Corrosion-Resistant Components – All wetted parts are made from titanium, PVC, or other seawater-resistant materials, ensuring durability in coastal environments.
| Parameter | Specification |
|---|---|
| Chlorine Production Capacity | 0.5 – 200 kg/h (adjustable) |
| Seawater Flow Rate per Cell | 10 – 500 m³/h per module |
| Operating Voltage | AC 380V / 50Hz (other voltages available) |
| Power Consumption | 3.5 – 5.0 kWh per kg Cl₂ |
| Electrode Material | Titanium with MMO coating |
| Control System | PLC with HMI touchscreen, remote monitoring optional |
| Operating Temperature | 5°C – 45°C (seawater inlet) |
Benefits for Your Coastal Power Plant
Reduced Downtime – Continuous chlorination prevents biofouling buildup, minimizing the need for manual cleaning and unscheduled shutdowns.
Lower Chemical Costs – Eliminates the purchase, storage, and handling of commercial bleach or chlorine gas, reducing operational expenses by up to 40% compared to chemical dosing.
Enhanced Heat Transfer Efficiency – Clean heat exchangers and condensers improve thermal performance, potentially saving fuel or increasing power output.
Environmental Compliance – The system produces a low-concentration chlorine residual that quickly dissipates, meeting discharge regulations for coastal waters.
Adaptable to Existing Infrastructure – Our skid-mounted units can be integrated into your current cooling water system with minimal modification.
At ZLN Technology, we understand the critical importance of reliable biofouling control. Our systems are engineered for continuous, worry-free operation in some of the world’s most demanding coastal environments. We have successfully delivered solutions to power plants across North America, South America, Europe, Southeast Asia, Africa, the Middle East, Oceania, and other regions. All equipment is shipped from our facility in Tianjin Port, ensuring fast and efficient logistics.
Why choose ZLN?
Factory-direct manufacturing – Competitive pricing with full quality control.
Custom design capability – We tailor each system to your plant’s flow rate, chlorine demand, and space constraints.
Global after-sales support – Our technical team provides remote assistance, spare parts, and on-site commissioning services.
Proven track record – Hundreds of installations worldwide, backed by years of R&D in electrolysis technology.
Take the next step toward optimizing your plant’s cooling system. Contact us today for a personalized quotation or technical consultation. Our team is ready to help you achieve efficient, long-lasting biofouling control.
Frequently Asked Questions
Q: How does the system generate chlorine from seawater?
A: Seawater passes through an electrolytic cell where a low-voltage DC current splits chloride ions (Cl⁻) into chlorine gas, which immediately reacts with water to form sodium hypochlorite (NaOCl). This solution is then injected into the cooling water stream.Q: What is the typical lifespan of the electrodes?
A: With proper maintenance, the titanium MMO electrodes typically last 5–8 years, depending on operating conditions and water quality. We provide electrode replacement services.Q: Can the system handle varying seawater salinity?
A: Yes, the system is designed to operate efficiently with salinity levels from 15,000 to 40,000 ppm TDS. For lower salinity, we can adjust the cell design.Q: Is the system suitable for tropical coastal environments?
A: Absolutely. The system’s materials and electronics are selected to withstand high humidity, ambient temperatures up to 50°C, and corrosive marine air.Q: What maintenance is required?
A: Routine tasks include checking the electrolyte flow, cleaning the cell (if needed), and inspecting the control panel. The self-cleaning electrode polarity reversal reduces scaling. We provide a detailed maintenance manual.Q: How long does installation take?
A: Installation typically takes 1–2 weeks, depending on site preparation and integration with existing piping. We offer on-site supervision and commissioning services.Q: Do you offer remote monitoring?
A: Yes, remote monitoring via SCADA or cloud-based platforms is available as an option. This allows you to track chlorine production, system alarms, and performance data from a central control room.Q: What is the warranty period?
A: We offer a standard 12-month warranty from the date of commissioning. Extended warranty packages are available upon request.
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