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Reliable Fully Automatic Liquid Chlorine Equipment for Dosing Systems – PLC Controlled, Designed for NaCl Purity >89%
We are Tianjin ZhuoLiNeng (ZLN) Technology Co., Ltd, a professional manufacturer based in Tianjin, China, dedicated to providing advanced water treatment solutions to clients across North America, South America, Europe, Africa, Southeast Asia, the Middle East, and domestic markets. Our fully automatic liquid chlorine equipment for dosing systems is engineered to meet the demanding needs of modern disinfection processes, combining intelligent PLC control with a robust, corrosion-resistant structure. This system is specifically designed for use with salt purity of only NaCl >89%, making it a cost-effective and highly efficient solution for on-site chlorine generation and precise dosing. With a strong focus on operational safety, accuracy, and long service life, our equipment helps water treatment facilities achieve consistent disinfection performance while minimizing chemical handling risks and operating expenses.
Product Overview
This liquid chlorine equipment is a fully automatic dosing system that produces chlorine-based disinfectant on-site using sodium chloride as the sole raw material. The integrated PLC controller manages the entire water flow, brine concentration, electrolysis current, and dosing rate in real time, ensuring that the chlorine output always meets the required dosage for your specific application. The system is delivered as a compact, skid-mounted unit that is pre-wired and pre-piped, significantly simplifying installation and commissioning. Whether your application is drinking water disinfection, wastewater treatment, cooling water biofouling control, or swimming pool sanitation, this equipment offers a dependable and low-maintenance alternative to traditional delivered chlorine chemicals.
Key Features and Benefits
Full PLC Control: The automatic controller continuously monitors salt concentration, water flow, temperature, and chlorine output. Operators can easily set dosing parameters through the on-screen interface. This reduces manual intervention and ensures stable, uninterrupted operation.
Optimized for Low Salt Purity: The system works effectively with salt purity as low as NaCl >89%, allowing you to use economical, readily available salt without compromising performance. This significantly lowers raw material costs.
Corrosion-Resistant Construction: All wet-end components are made of high-grade PVC, titanium, and other corrosion-resistant materials, which provide excellent durability in aggressive chlorine environments and extend the service life of the equipment.
Automatic Dosing Accuracy: The PLC-controlled dosing valve and metering pump deliver precise chlorine dosage, minimizing waste and ensuring water quality compliance.
Energy-Efficient Electrolysis: The electrolytic cell is engineered for high current efficiency, reducing power consumption while maintaining high chlorine production rates.
Safety Protection System: Equipped with over-current, over-temperature, low-salt, and low-water level alarms, the system automatically shuts down or adjusts operation to prevent unsafe conditions.
Low Maintenance Design: The self-cleaning electrode polarity reversal function helps prevent scale buildup, minimizing the need for frequent manual cleaning and reducing downtime.
Modular and Scalable: The skid-mounted design allows for easy integration into existing dosing systems. Additional capacity modules can be added to meet future capacity expansion needs.
Technical Specifications (Typical Range – Customizable Upon Request)
| Control Mode | PLC automatic control with HMI touch screen |
| Salt Purity Requirement | NaCl > 89% |
| Chlorine Production Capacity | Customizable from small to large flow systems (available upon request) |
| Dosing Method | Proportional dosing via PLC-controlled metering pump / valve |
| Power Supply | Optional 220V/380V, 50/60Hz (please specify when ordering) |
| Material of Electrolytic Cell | Titanium with precious metal oxide coating |
| Operating Temperature | 5°C – 45°C (typical range) |
| Degree of Automation | Fully automatic; unattended operation possible |
| Installation Type | Skid-mounted, pre-assembled |
Application Fields
Municipal drinking water treatment and disinfection
Wastewater treatment plant effluent disinfection
Cooling water systems in power plants and industrial facilities
Swimming pool and spa water sanitation
Aquaculture and livestock water hygiene
Food and beverage processing water disinfection
Bottled water production disinfection
Hospital and medical facility effluent treatment
In every application, the system supplies a steady and adjustable chlorine dose, helping operators maintain safe residual chlorine levels while reducing the danger of handling hazardous liquid chlorine or gas chlorine cylinders.
Why Choose ZLN Technology?
With years of experience in manufacturing water treatment equipment, ZLN Technology operates under a strict quality management system certified to standards. Our factory in Tianjin allows convenient sea shipment to all major international ports. We have exported to a wide range of markets including Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and the Americas, where our equipment is recognized for its reliable performance and practical design. Every unit is fully tested before delivery, and our team provides responsive technical support for installation, commissioning, and operation. We welcome ODM/OEM projects, and all machine specifications are customizable to fit your unique site conditions and dosing requirements. For more information or a tailored quotation, please contact our sales team – we are ready to assist you with the right solution for your water treatment needs.
Frequently Asked Questions (FAQ)
Q: What salt purity is required for this equipment?
A: The equipment is designed to operate efficiently with salt purity of only NaCl > 89%. Using salt that meets this minimum purity helps prevent impurities from affecting the electrolytic cell and dosing accuracy. We recommend feeding salt without anti-caking additives or excessive impurities.Q: Can the output chlorine dosage be adjusted automatically?
A: Yes. The PLC control system can adjust the dosing rate automatically based on signals such as flow rate, residual chlorine, or a pre-set dosing program. This allows the equipment to adapt to varying water quality and flow conditions without manual recalibration.Q: What is the chlorine production capacity?
A: The capacity is customizable. Our standard models cover a range of outputs, and we can engineer a system that matches your required daily chlorine production or dosing flow. Please provide your typical water flow and desired residual chlorine level for an accurate recommendation.Q: Is the equipment fully automatic?
A: Yes, the equipment operates in a fully automatic mode. After initial setup, the PLC controller manages brine mixing, electrolysis, chlorine dosing, and safety alarms. Operators only need to replenish salt periodically and perform routine maintenance checks.Q: Does the system require frequent cleaning or maintenance?
A: The system includes a self-cleaning function via electrode polarity reversal, which reduces scale formation. Nevertheless, periodic inspection of the salt tank, filters, and dosing lines is recommended. Our manual provides a simple maintenance schedule. Overall, maintenance is low compared to conventional chlorine dosing systems.Q: Can this equipment be integrated into an existing dosing system?
A: Yes. The skid-mounted design includes standard inlet/outlet connections and can be easily integrated with existing pumps, pipes, and control panels. We also offer additional components such as flow meters, residual chlorine probes, and remote monitoring modules as optional extras.Q: What power supply do I need?
A: The equipment can be customized for 220V or 380V, 50/60Hz. Please specify your local voltage and frequency when ordering, and we will configure the electrical components accordingly.Q: How is safety ensured during operation?
A: The system includes multiple safety features: low-salt alarm, low-water-level shutdown, over-temperature protection, and over-current protection. In case of abnormal conditions, the controller will alarm and automatically stop production to ensure safe operation of the equipment.
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