Subway and rail systems cool platforms, equipment rooms and traction converters around the clock. An underground chiller trip affects passenger safety and service.
The Operating Reality
A metro line cools stations, signalling and traction equipment rooms through chillers on cooling towers fed by untreated urban water with high silt load.
Why Fouling Hurts Here
Continuous cleaning holds end-difference near ~1.2°C and prevents the silt-and-biofilm layer that manual schedules miss — essential when the next maintenance window must not interrupt service.
How Automatic Tube Cleaning (ATCS) Fits
- Sponge balls (DN100–500 compatible, 0.1 mm oversize) circulate every chiller cycle, sweeping tubes with no shutdown.
- End-difference is held near ~1.2°C instead of drifting to 3°C+, keeping compressor work in check (each 1°C of end-difference adds ~4% compressor load).
- Continuous sweeping prevents the biofilm layer (up to ~300× more insulating than clean tube) that manual schedules miss.
- Systems are sized to tube count and metallurgy — titanium, copper-nickel, stainless and carbon steel all supported.
Compliance & Standards
For new Chinese industrial and commercial cooling projects, online/automatic condenser cleaning aligns with GB/T 51357-2019 guidance that such measures be considered for energy-efficient cooling design.
Related Products
- Automatic Condenser Tube Cleaning System (ATCS)
- Constant Pressure Water Make-up System
- HVAC & Cooling Coil Cleaning Guide
FAQ
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