Oil-injected screw air compressors are a common type of industrial air compressor, typically consisting of a compressor body, motor, oil separator, oil cooler, oil filter, air cooler, and control system. The compressor body is the core component of an oil-injected screw air compressor and primarily consists of a main housing, rotor, stator, oil pump, and cooler.
Oil-injected screw air compressors have the following characteristics:
1. Wide Application Range: They can be used in applications where the gas contains oil, as well as in applications where the gas is compatible with lubricating oil.
2. Stable Performance: They offer minimal fluctuation, vibration, and compressed gas flow pulsation.
3. High Efficiency: The rotor with asymmetrical teeth ensures high performance.
4. Compact Design: This allows for a compact design of the entire compression unit.
5. Low Wear: Compared to reciprocating air compressors, they do not use valves or piston rings, resulting in fewer wearing parts.
When using an oil-injected air compressor, proper maintenance is crucial and essential. Regular maintenance keeps the compressor in optimal working condition, extends its lifespan, reduces production costs, and ensures safe operation.
Maintenance for an oil-injected screw air compressor includes the following:
1. Regular filter element replacement: The filter element is a key component that filters impurities and grease from the air. Regular replacement prevents excessive accumulation of contaminants that can affect machine performance. It is recommended to replace the filter element after the first 500 hours of operation, and then every 1500-2000 hours thereafter.
2. Regularly check the oil quality: The oil in a screw air compressor must be clean and have the correct viscosity. Regularly check the oil quality and replace it promptly to ensure proper operation.
3. Maintain the lubrication system: The lubrication system of a screw air compressor is crucial for ensuring proper operation. Regularly check the lubrication system's condition and add or replace the lubricant as needed.
4. Clean the heat exchanger and cooler: The heat exchanger and cooler of a screw air compressor are susceptible to accumulation of dust and debris. Regular cleaning maintains good heat dissipation and prevents overheating.
5. Check fasteners: Regularly check the screw air compressor's fasteners, such as bolts and joints, for looseness, and adjust and tighten them promptly.
6. Pay attention to the machine's operating environment: The screw air compressor should be placed in a well-ventilated environment with a suitable temperature, away from moisture and corrosive gases to prevent damage.
7. Regular maintenance: Have professional technicians perform regular maintenance to check the machine's performance and the working condition of each component, and replace aging and damaged parts promptly.
