Integrated Design Automatic Chemical Dosing System with High-Precision Metering and Dual Control Modes

In modern water treatment processes—spanning from industrial cooling loops to municipal wastewater management—the accurate delivery of chemical agents is critical. The ArkDose Series Automatic Chemical Dosing System is engineered by Wuxi Ark to provide a seamless, automated approach to water chemistry management. Whether the goal is scale inhibition, sterilization, or coagulation, this system ensures that chemicals (in both liquid and dissolved solid forms) are diluted and injected at the precise ratios required to maintain optimal system performance.

The ArkDose station is not merely a pump; it is a fully integrated assembly. The primary components include:

• High-Volume Chemical Tanks: Available in various capacities with integrated level sensors to prevent dry running.

• Precision Metering Pumps: Featuring adjustable stroke and frequency for micro-liter accuracy.

• Intelligent Control Cabinet: The brain of the system, capable of processing sensor data and executing complex dosing logic.

• Online Monitoring Instruments: (Optional) Real-time tracking of pH, conductivity, residual chlorine, and COD.

The system operates on two primary logic frameworks to suit different industrial requirements:

1. Time-Programmed Dosing:

Ideal for systems with stable loads, this mode relies on a high-precision timer. Operators can set specific dosing cycles, frequencies, and durations. Once configured, the system operates autonomously, opening the metering pumps at scheduled intervals and closing them precisely when the target volume is reached.

2. Feedback-Loop Controlled Dosing:

For dynamic systems (like cooling towers or wastewater plants), the ArkDose system utilizes online analytical instruments. For instance, if the Conductivity Meterdetects a rise in dissolved solids, the PLC triggers the blowdown valve and simultaneously activates the dosing pump to replenish scale inhibitors. Similarly, ORP or pH sensors can trigger biocide or acid/alkali dosing to maintain the water within a safe biological and chemical window.

The ArkDose system is a staple in high-stakes environments, including:

• HVAC & Central Air Conditioning: Prevention of bio-fouling and mineral scaling in chilled and hot water loops.

• Process Cooling Water: Essential for the petrochemical, steel, and thermal power industries to extend equipment lifespan.

• Environmental Protection: Utilized in rainwater harvesting, reclaimed water reuse, and complex wastewater neutralization.

• Pharmaceutical & Microelectronics: Providing the ultra-stable water chemistry required for high-purity manufacturing.