A Complete Guide to High-Temperature Protection for Screw Air Compressors
Release time:
2025-08-26
A Complete Guide to High-Temperature Protection for Screw Air Compressors
Building a Strong High-Temperature Defense
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Ensuring Cooling System Efficiency
Air-Cooled Models:
Focus on cleaning the radiator fins. Accumulation of willow catkins and dust can reduce heat dissipation efficiency by more than 30%. The normal temperature difference between inlet and outlet oil should be maintained within 10°C. If it falls below this value, immediately check for radiator blockages or corrosion.
Water-Cooled Models:
Monitor the temperature difference between the cooling water inlet and outlet. A healthy range is 5°C–8°C. A difference below 5°C indicates pipeline blockages or scaling buildup. It is recommended to clean the cooler monthly and ensure water quality meets industrial standards (inlet water ≤35°C, outlet water ≤40°C).
Regularly clean the air deflectors and exhaust fans to prevent airflow short circuits. Consider installing axial fans or air conditioning in the equipment room for forced heat exhaust.
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Precision Management of the Lubrication System
High temperatures accelerate lubricant oxidation, leading to carbon buildup and abnormal viscosity:
- Switch to fully synthetic lubricants during summer, as their high-temperature stability far exceeds that of mineral oils, effectively reducing rotor wear risks.
- Shorten oil inspection intervals. Immediately replace the oil if it appears black, emulsified, or shows sediment (indicating oil degradation). Simultaneously, oil filter life should be reduced by 30%, requiring timely replacement.
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Electrical and Structural Protection Upgrades
High temperatures can cause cable aging and short circuits. Ensure terminal blocks are tightened, clean contactor carbon deposits, and prioritize maintaining cooling ducts for frequency conversion equipment.
Inspect cylinder seals, preferably using fluororubber materials (heat resistance up to 200°C), to prevent leaks due to high-temperature deformation.
Record daily operating parameters (discharge temperature, pressure fluctuations) to establish a baseline for equipment health.
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Addressing Environmental Challenges
Proactive prevention is better than reactive repairs. Optimize operating modes to reduce high-temperature impact:
- Off-Peak Operation Mechanism:** Shift high-load production to early morning or nighttime (when ambient temperatures are 10–15°C lower), avoiding full-load operation during afternoon high-temperature periods. Non-critical processes can operate at reduced frequency and pressure.
-Dynamic Ventilation Management:** Install temperature and humidity sensors in the equipment room. Automatically activate strong exhaust ventilation when temperatures exceed 40°C. Install dust filters at air inlets and clean filter cotton weekly to prevent secondary blockages.
- Strict Condensate Control:** Condensate volume surges in summer, increasing drain valve failure rates by 50%. Check automatic drain valves daily and equip two-stage oil-water separators to prevent emulsified oil from entering the main unit.
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Synergistic Management Measures
Preventive Maintenance Calendar:
Develop a summer-specific maintenance plan. From June to August, add one deep cleaning session for the cooling system and replace air and oil filters in advance (dust and humidity accelerate clogging).
Emergency Drill Training:
Operators must master emergency shutdown procedures for high-temperature alarms (105°C), abnormal vibrations, and other faults. Conduct hands-on disassembly drills for thermal valve malfunctions (abnormal opening at 67°C).
Smart Monitoring Empowerment:
Install IoT sensors to track bearing temperature and oil dielectric constant in real time. Use cloud platforms to warn of declining heat dissipation efficiency and guide precise interventions.
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