1 Product Overview

The seawater electrolysis chlorination system is an intelligent on-site sterilization and disinfection turnkey equipment independently developed for marine industrial water treatment scenarios, serving as a core eco-friendly device for marine organism antifouling. Different from traditional disinfection equipment, this system requires no purchase, storage or transportation of hazardous chemicals such as liquid chlorine and sodium hypochlorite. It directly takes natural seawater as the raw material and generates high-efficiency sodium hypochlorite disinfectant on-site through low-voltage electrolysis technology, which is automatically dosed into seawater circulation systems, water transmission pipelines and marine hydraulic equipment in real time.

The system efficiently eradicates bacteria, algae, shellfish larvae and various microorganisms in seawater, fundamentally preventing pipeline slime, biofilm formation and marine organism adhesion. It avoids blockage and corrosion of heat exchange equipment and water delivery pipelines, greatly extending the service life of marine industrial equipment. Featuring fully automatic operation, excellent marine corrosion resistance, low energy consumption, zero secondary pollution and low maintenance frequency, the system fully complies with IMO MARPOL international marine environmental protection conventions and domestic coastal industrial water treatment emission standards. It has become standard supporting water treatment equipment for coastal thermal power plants, nuclear power plants, offshore oil and gas platforms, port terminals and seawater desalination projects.

2 Technical Principle

The system operates based on the in-situ electrochemical electrolysis principle of seawater. Utilizing natural sodium chloride electrolytes contained in seawater, the rectifier transformer converts alternating current into stable direct current and transmits it to the professional electrolytic cell for redox electrolysis reactions. The core reaction process is as follows: when seawater flows through the gap between the anode and cathode of the electrolytic cell, chloride ions undergo oxidation reaction at the anode to generate chlorine gas, which immediately reacts with seawater secondarily to form sodium hypochlorite disinfectant. A small amount of hydrogen produced at the cathode is safely discharged through a closed ventilation system without residual pollutants.

The entire process adopts a closed-loop workflow of "seawater pretreatment → pressure stabilization filtration → precise flow regulation → low-voltage electrolysis → automatic dosing → residual chlorine monitoring and feedback". The intelligent control system dynamically adjusts electrolytic current, seawater flow and dosing dosage in real time, adapting to fluctuations in seawater temperature, salinity and water quality. It stably maintains the effective chlorine concentration within the standard range, realizing 24/7 stable sterilization, algae removal and antifouling effects. No chemical residues are generated during operation, and the disinfected water can be naturally degraded without secondary pollution to the marine environment.

3 Main Features

(1) On-Site Chlorine Generation with Zero Safety Hazards: Using natural seawater as raw material for on-site electrolysis and immediate application, the system completely abandons the traditional mode of purchasing hazardous chemicals externally. It eliminates all safety risks in chemical transportation, storage and proportioning, fundamentally improving the operational safety of coastal and offshore plants.

(2) Corrosion Resistance for Harsh Marine Conditions: The core flow-through components and electrolytic cells are made of marine-grade titanium alloy with high-end DSA coating, which resists erosion from high salt fog, high humidity and strong corrosive marine environments. It can operate stably for a long time in a wide temperature range of -10℃ to 55℃ and adapt to variable seawater quality conditions.

(3) Fully Automatic Intelligent Operation & Maintenance: Equipped with a PLC intelligent control system and remote monitoring module, the system supports 24-hour unattended automatic operation. It integrates multiple functions including flow self-adaptation, automatic residual chlorine adjustment, self-inspection of faults, over-limit alarm and start-stop interlock, requiring no full-time operators and reducing labor costs.

(4) Energy Saving & High Cost Performance: Optimized electrolytic cell flow channel structure and power supply scheme reduce electrolysis energy consumption by 15%-20% compared with traditional chlorine generation equipment. With high electrolysis conversion rate and stable effective chlorine output, it significantly cuts long-term energy consumption and operation & maintenance costs.

(5) Eco-Friendly & Standard Compliant: The electrolytic products are only sodium hypochlorite, water and trace hydrogen. Sodium hypochlorite degrades naturally after disinfection without toxic residues. The discharged water fully meets international marine environmental protection emission standards, satisfying strict environmental protection requirements of various coastal industries.

(6) Modular Integrated & Easy Installation: Adopting skid-mounted integrated design, the equipment features compact structure and small floor space. Overall debugging is completed before delivery, and on-site commissioning only requires connection of water and power pipelines for rapid production, suitable for deployment in fixed machine rooms and narrow spaces of offshore platforms.

4 Core Advantages

(1) Technical Advantage: Mature & Stable Electrolysis Process: Adopting concentric tubular electrolysis structure with no acid cleaning maintenance required, the electrolytic plates achieve uniform reaction without scaling and blockage. It solves the pain points of traditional plate electrolytic cells such as easy scaling, short service life and high energy consumption, greatly improving the continuous operation stability and adapting to long-term uninterrupted industrial working conditions.

(2) Cost Advantage: Low Full-Lifecycle Operation Cost: No continuous purchase of chemical agents is required, with only seawater and electric power consumed. It saves costs of chemical procurement, warehousing and manual proportioning. The core components have a service life of 8-10 years, eliminating frequent replacement and regular acid cleaning maintenance, realizing extremely low full-lifecycle operation costs.

(3) Effect Advantage: Comprehensive Marine Organism Antifouling: Stable and precise effective chlorine output completely eliminates various microorganisms, algae and marine fouling organisms in seawater. It effectively prevents scaling and blockage of pipelines, heat exchangers and hydraulic equipment, reducing equipment corrosion rate by 70%-90% and significantly improving industrial heat exchange efficiency and equipment service life.

(4) Adaptability Advantage: Strong Universal Scenario Compatibility: Supporting stepless load adjustment from 20% to 100%, the system can flexibly adjust chlorine generation capacity according to the water treatment capacity and water quality requirements of different industries. It is applicable to large, medium and small coastal industrial projects and offshore engineering water treatment scenarios, and supports personalized customized solutions.

(5) Safety Advantage: Multiple Safety Protection Systems: Equipped with multiple safety mechanisms including closed hydrogen collection and discharge, over-temperature and over-pressure protection, leakage protection, flow abnormality interlock shutdown and fault alarm. It effectively avoids hidden dangers such as hydrogen accumulation and equipment overload, ensuring 24/7 safe and stable operation of the equipment.

5 Core Components

(1) Titanium Alloy DSA Coated Electrolytic Cell (Core Component): Adopting double-layer titanium tube concentric structure, the anode is coated with imported ruthenium-iridium DSA coating, featuring excellent conductivity, high electrolysis conversion rate, strong corrosion resistance and aging resistance. It is free of scaling and acid cleaning, serving as the core guarantee for long-term stable operation, with a service life far exceeding ordinary electrolytic plates.

(2) Intelligent Rectifier Transformer: Professional voltage-stabilizing rectification equipment converts industrial alternating current into low-voltage direct current suitable for electrolysis with stable voltage and current output. It resists power grid fluctuations, reduces electrolysis energy consumption and ensures continuous and efficient electrolysis reactions.

(3) PLC Intelligent Control System: Integrated with touch operation panel, remote monitoring module and data acquisition module, it supports automatic parameter adjustment, operation data recording, fault self-inspection & alarm and remote start-stop control, realizing full-process intelligent management of equipment.

(4) Seawater Pretreatment Filtration Module: Equipped with high-precision seawater filter and voltage stabilizer, it effectively intercepts sediment, impurities and suspended matters in seawater, purifies inlet water quality, protects electrolytic cells and subsequent pipeline equipment, and prevents impurities from affecting electrolysis efficiency.

(5) Automatic Dosing & Residual Chlorine Monitoring Module: Fitted with high-precision metering dosing pump and online residual chlorine sensor, it monitors residual chlorine content in water in real time and dynamically adjusts chlorine generation and dosing capacity to ensure qualified disinfection effect and avoid agent waste.

(6) Closed Hydrogen Discharge System: The special ventilation and drainage device collects trace hydrogen generated by electrolysis in real time and discharges it safely in a closed manner to prevent hydrogen accumulation and fully guarantee equipment operation safety.

6 Application Fields

(1) Coastal Power Industry: Applied to sterilization, algae removal and marine organism antifouling of circulating cooling water systems in thermal power plants and nuclear power plants, ensuring efficient operation of heat exchange units and avoiding pipeline blockage and equipment corrosion.

(2) Offshore Oil & Gas Engineering: Used for disinfection and sterilization of water supply and cooling systems in offshore drilling platforms and offshore oil & gas production bases, adapting to narrow installation spaces and harsh marine working conditions at sea.

(3) Seawater Desalination Engineering: Applied to sterilization and algae removal in the pretreatment stage of seawater desalination, inhibiting microbial growth, preventing biological pollution of desalination membrane components, and improving seawater desalination water quality and equipment operation efficiency.

(4) Port & Marine Engineering: Suitable for marine organism antifouling treatment of water transmission systems and hydraulic facilities in port terminals, cross-sea projects and offshore artificial islands, reducing equipment operation and maintenance loss.

(5) Coastal Chemical Industry & Industrial Parks: Applied to disinfection and purification of seawater circulation systems and production water in coastal chemical plants and industrial parks, meeting strict industrial production water treatment standards.

(6) Coastal Municipal & Tourism Scenarios: Used for sterilization, disinfection and deodorization of coastal urban seawater landscapes, seawater swimming pools and coastal municipal sewage seawater replenishment systems.

Boasting 25 years of professional industry experience in production and supply, BLUEWAV factory delivers premium,cost-effective chemical products with reliable quality. Equipped with fully automatic production systems and scientific modular production line design, we achieve stable output, high efficiency and low energy consumption while strictly complying with industrial standards. Different from ordinary manufacturers, BLUEWAV provides flexible customized services tailored to diverse customer needs on product specifications, packaging and solutions. With direct factory pricing and optimized production processes, we help clients cut procurement costs and obtain high-quality, stable chemical supplies with comprehensive professional support.