Atlas Copco Compressor Cooler ZH7000

1. Product Overview

The Atlas Copco ZH7000 cooler is a core component specifically designed for centrifugal air compressors, representing the high-end cooling module in the ZH series. This product features all-stainless steel TIG welding technology with a compact structure and high heat exchange efficiency, achieving minimal liquid retention through thin plate design. Its primary function is to provide efficient heat exchange for centrifugal compressors, ensuring stable output of compressed air under high-pressure and high-temperature conditions while reducing energy consumption and operational noise. This cooler is widely used in industrial manufacturing, energy, chemical, and environmental protection sectors, particularly excelling in scenarios requiring continuous and stable air supply.

2. Technical Features and Data Specifications

2.1 Core Parameters and Performance Indicators

• Operating Conditions: Compatible with ZH7000 centrifugal compressors, rated working pressure range of 7-10.4bar (50Hz), supporting 6 flow configurations with maximum exhaust capacity up to 20m³/min (varies by specific model).
• Cooling Efficiency: Requires only 1/3 of the water consumption compared to traditional shell-and-tube heat exchangers, reducing cooling water flow demand by 67%.
• Pressure Capacity: Withstands up to 16bar design pressure, operating temperature range from -20°C to 150°C.
• Materials: 316L stainless steel body with 0.5-0.8mm plate thickness, 100% radiographic testing of welds, leakage rate below 1×10⁻⁹ Pa·m³/s.
• Hydraulic Design: Fouling factor ≤0.00015m²·℃/W, reduces fouling deposition rate by 70% at flow velocities of 3-5m/s.

2.2 Innovative Technologies

• Modular Design: Supports quick disassembly and capacity expansion up to 3-stage series configuration.
• Smart Temperature Control: Integrated sensors and flow valves maintain ±1°C accuracy.
• Noise Reduction: Operational noise ≤75dB(A), 10-15dB lower than comparable products.
• Energy Efficiency: Specific power ≤5.5kW/(m³/min), saving 12%-18% energy versus traditional coolers.

2.3 Performance Comparison Data

Parameter	ZH7000 Cooler	Traditional Shell-and-Tube Cooler	Improvement
Cooling Water Requirement	10m³/h	30m³/h	-67%
Fouling Factor	0.00015	0.00045	-67%
Maintenance Interval	24 months	12 months	+100%
COP	4.2	3.5	+20%
Weight	850kg	1200kg	-29%

3. Application Scenarios and Case Studies

3.1 Primary Application Fields

• Manufacturing: Automotive painting lines, clean rooms for electronic components
• Energy Sector: Natural gas stations, oilfield booster stations
• Environmental Engineering: Wastewater aeration systems, flue gas denitrification
• Food Processing: Aseptic packaging lines, beverage filling equipment

3.2 Detailed Case Studies

Case 1: Overhaul Project at Fujian Chemical Plant

• Replaced bearings with SAE 52100 steel (HRC60-62 hardness)
• Upgraded to 3-stage ZH7000 cooler configuration
• Results: Vibration reduced from 15μm to 2.3μm, annual electricity savings of ¥800,000

Case 2: Automotive Paint Shop Upgrade

• Implemented ZH7000 system with ±0.05bar pressure stability
• Achieved ISO 8573-1 Class 0 air quality
• Results: Paint quality improved from 85% to 98.5%, OEE increased by 22%

4. Maintenance Strategy

4.1 Routine Inspection Points

• Coolant pressure differential ≤0.15MPa
• Compressed air outlet temperature ≤40°C
• Helium leak detection ≤1×10⁻⁹ Pa·m³/s
• Vibration analysis ≤4.5mm/s

4.2 Scheduled Maintenance

• 500-hour Service: Surface cleaning, pH verification (6.5-8.5)
• 8000-hour Service: Ultrasonic cleaning, O-ring replacement
• 24000-hour Service: Full plate replacement, pressure testing at 1.5x design pressure

4.3 Troubleshooting

• Insufficient Coolant Flow: Check pump head (≥25m), clean 80-mesh filters
• Oil Contamination: Verify separator differential pressure (≤0.1MPa)
• Surge Events: Activate backup within 30 seconds, reduce load to 70%

5. Conclusion

The Atlas Copco ZH7000 cooler sets industry benchmarks in efficiency, reliability and smart functionality for industrial compressed air systems. Field applications demonstrate 15%-20% operational cost reductions while improving production quality. As Industry 4.0 advances, the ZH7000 series will incorporate enhanced digital features for complete lifecycle management, delivering competitive compressed air solutions from Fete Vessel.