Centac Cooler Ch4

1. Product Overview: Core Cooling Component for Centrifugal Compressors

The Centac Cooler CH₄ is a purpose-built cooling module designed specifically for Centac series centrifugal air compressors, serving as a critical heat exchange unit in industrial gas compression systems. Utilizing forced convection heat transfer principles, this equipment effectively transfers heat generated during compression from high-temperature compressed air to cooling media, ensuring stable air temperatures for subsequent compression stages or end-use applications.

Key Structural Components:

• Tube bundle assembly
• Fin matrix system
• Structural support frame
• Powered fan unit

Featuring modular design for compatibility with various Centac compressor models (including 1ACV, C250, C350), this spray-type fixed tube sheet air cooler is engineered for demanding industrial applications in chemical processing, natural gas treatment, and petroleum refining.

Technical Specifications:

Parameter	Specification
Tube Material	Copper Alloy/Stainless Steel
Fin Spacing	2.5-4.0mm
Airflow Range	500-15,000m³/h
Cooling Efficiency	≥85%
Max Inlet Temperature	120°C
System Pressure Drop	≤0.03MPa

2. Technical Features with Performance Data

2.1 Structural Innovations and Material Advancements

• Tube Bundle Assembly: Bimetal rolled fin tube technology with T2 copper base tube and 0.15mm aluminum fins, achieving 250-300W/(m²·K) heat transfer efficiency through high-frequency resistance welding.
• Frame System: Q345B carbon steel welded structure with triple-layer anti-corrosion coating (zinc-rich epoxy primer + micaceous iron oxide intermediate + polyurethane topcoat), passing ≥1,000 hours salt spray testing.
• Fan Unit: Backward-curved centrifugal fan with 800-1500mm diameter GFRP blades, featuring 15-100% variable frequency speed control and 5.5-75kW motor power range.

2.2 Thermodynamic Performance Metrics

Performance Indicator	Value
Heat Transfer Coefficient	280W/(m²·K) @ 120°C inlet/32°C coolant
Temperature Reduction	40-60°C (outlet ≤60°C)
Airside Pressure Drop	≤0.025MPa with corrugated inner fins

3. Industrial Applications and Case Studies

3.1 Typical Application Fields

• Natural Gas Liquefaction: Three-stream spiral wound tube design enables -53°C to -120°C cryogenic heat exchange, improving LNG production efficiency by 15%.
• Chemical Processing: PTFE-coated tube bundles withstand corrosive media, extending service life beyond 20 years while reducing annual maintenance costs by 40%.
• Metallurgical Industry: Optimized inlet guide vanes and blowback cleaning system extend filter replacement cycles from 3 to 12 months in blast furnace applications.

4. Maintenance Strategy

4.1 Routine Inspection Protocol

• Daily monitoring of coolant ΔT (≤8°C), fan current (≤5% fluctuation), and pressure differential (≤0.02MPa)
• Monthly ultrasonic leak detection with ≤1% allowable leakage rate

4.2 Periodic Maintenance Schedule

Frequency	Action
Quarterly	Fin cleaning (10-15MPa water jet), bearing lubrication (radial play ≤0.1mm)
Annually	Filter replacement (≤4μm rating), tube bundle eddy current testing (≤30% wall thinning)

5. Technical Summary

The Centac Cooler CH₄ delivers exceptional performance through:

1. 20% higher heat transfer efficiency via corrugated tube and bimetal fin technology
2. 20,000+ hours MTBF through corrosion-resistant modular construction
3. Reduced lifecycle costs with intelligent controls and self-cleaning design

As material science and control technologies advance, Fete Vessel continues to push boundaries for extreme-condition applications including cryogenic (-160°C) and highly corrosive (pH≤2) environments.