CSIC702 Research Institute Project: High-Flow Self-Cleaning Filtration System for Research Facilities

Core Challenges:

1. Ultra-High Throughput: The massive water volume of the testing facilities requires the filtration system to handle thousands of cubic meters per hour with minimal hydraulic loss.
2. Uninterrupted Operation: Scientific experiments often have long cycles and cannot be interrupted; the filtration system must perform self-cleaning and blowdown while maintaining absolute stability in main pipeline flow and pressure.
3. High-Standard Purification: Precise interception of fine suspended solids and algae is required to maintain exceptional water clarity for precision optical measurements.
4. Intelligent System Integration: The equipment must possess high automation levels, enabling automatic cleaning based on pressure differential and seamless integration with the institute’s central control system.

Solution:

• Powerful Suction Self-Cleaning Technology: Utilizing high-precision stainless steel wedge wire screens paired with a motor-driven suction cleaning mechanism. When the pressure differential reaches a setpoint, the cleaning scanner automatically scans the inner wall of the screen. The blowdown process consumes minimal water without interrupting the main flow.
• Parallel Redundancy Design: To meet ultra-high flow demands, a modular unit composed of multiple filters in parallel was adopted. This supports individual unit maintenance while ensuring zero risk to overall system operation.
• High-Precision Filter Elements: Specially treated screens were selected to stably intercept particles larger than 50-100μm, significantly improving the water tank's clarity indicators.
• Digital Intelligent Control: Equipped with a high-end PLC control system supporting remote SCADA monitoring. The system automatically adjusts cleaning frequency based on water quality, ensuring the filtration system always operates at optimal low energy consumption.

Customer Value & Results:

• Since the commissioning of the high-flow self-cleaning filtration system, the water clarity of the 702 Institute’s testing facilities has improved by over 40%, significantly enhancing the imaging quality of PIV and laser measurement systems.
• The fully automated operation has completely replaced traditional manual cleaning, saving hundreds of maintenance hours annually.
• Highly stable hydraulic characteristics ensure the continuity and accuracy of research data.
• The 702 Institute highly commended Unite’s expertise in supporting large-scale precision research equipment, and this project has become a benchmark for the purification of scientific hydraulic facilities in China.