ArkClean™ Automatic Online Condenser Tube Cleaning System (ATCS) – Intelligent Sponge Ball Cleaning for Chillers

The Challenge: The Hidden Cost of Condenser Fouling

In central HVAC systems and industrial refrigeration units, the condenser and evaporator tubes are the most critical components for thermal transfer. However, they are also highly susceptible to fouling. In high-hardness water environments, inorganic salts crystallize on the tube walls as temperatures rise, forming hard scale. Even a thin layer of scale—just 1mm thick—can increase energy consumption by 6% to 10%.

Beyond mineral scale, the accumulation of silt, humus, and biological slime (algae and bacteria) creates a “fouling barrier” that forces the compressor to run at higher pressures. This leads to frequent high-pressure alarms, emergency shutdowns, and a drastic reduction in the equipment’s service life. The ArkClean™ ATCS is the ultimate solution to maintain these tubes in a “perpetually clean” state.

How ArkClean™ ATCS Works

The ArkClean™ system utilizes a specialized mechanical circulation process that is both simple and highly effective:

1. Injection Phase: Specialized cleaning balls (typically high-elasticity sponge balls) are injected into the cooling water inlet through the Ball Launcher.

2. Scrubbing Phase: Driven by the high velocity of the cooling water flow, these balls travel through every single heat exchange tube. Because the balls are slightly larger than the tube diameter, they exert a gentle yet firm scrubbing force against the inner walls, wiping away soft scale and bio-slime before they can harden.

3. Recovery Phase: As the water exits the condenser, the balls are captured by the Ball Collector (Trap).

4. Recirculation: The balls are then suctioned back into the Ball Collector-Driver unit, where they await the next cleaning cycle.

Technical Superiority & Intelligent Control

The ArkClean™ system is managed by an advanced PLC Intelligent Control Box. Operators can define the cleaning frequency—for example, a 5-minute cleaning cycle every hour. This automation ensures that the condenser tubes never reach a state of fouling, keeping the heat transfer coefficient ($U$-value) at its theoretical maximum. Unlike manual chemical cleaning, which involves hazardous acids and periodic downtime, the ATCS provides a “preventative” rather than “reactive” maintenance strategy.

Key Features & Benefits

• Optimized Ball Capture: Our collector is designed with a low-pressure-drop grid that ensures a 100% ball recovery rate without affecting the system’s hydraulic balance.

• Versatile Ball Selection: We offer a variety of sponge balls, including standard, coated, and carborundum balls, to handle everything from soft slime to tougher deposits.

• Labor Reduction: Eliminates the need for annual manual mechanical brushing, saving hundreds of man-hours and reducing the risk of tube damage from harsh cleaning tools.

• Rapid ROI: Most industrial facilities see a return on investment within 6 to 12 months solely through electricity savings.

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