A screw air compressor is a type of rotary compressor that uses two interlocking helical rotors to compress air. Here are some key details about screw air compressors:
Screw Elements or Rotors: The main components that compress the air. They consist of a male rotor and a female rotor that mesh together.
Compression Chamber: The chamber where the rotors are housed and where the compression takes place.
Suction Air Filter: Filters the incoming air to remove dust and debris.
Oil Filters: Used in oil-injected screw compressors to filter the oil used for lubrication and cooling.
Bearings: Anti-friction roller and ball bearings support the rotors and ensure smooth operation.
Suction Valve: Controls the intake of air into the compressor.
Discharge Valve: Controls the release of compressed air from the compressor.
Electric Motor: Powers the rotors and drives the compression process.
Oil Tank, Oil Filter, and Air-Oil Separator: Used in oil-injected screw compressors to separate the oil from the compressed air and recycle it.
Suction Process: Air is drawn into the compressor through the suction valve and fills the space between the male and female rotors.
Compression Process: As the rotors turn, the air is trapped in the interlobe space and compressed by the reduction in volume as the rotors mesh together.
Discharge Process: The compressed air is released through the discharge valve into the delivery line.
Oil-Injected Screw Compressors: Use oil for lubrication, sealing, and cooling. They are more efficient and suitable for heavy-duty applications.
Oil-Free Screw Compressors: Do not use oil in the compression process, making them ideal for applications requiring clean air, such as food and pharmaceutical industries.
Industrial manufacturing
Food and beverage processing
Pharmaceutical production
Automotive industry
Construction
Continuous supply of compressed air with minimal fluctuations in pressure.
High efficiency and reliability.
Low maintenance requirements.
Suitable for a wide range of applications.
Higher initial cost compared to other types of compressors.
Oil-injected models require proper oil management to prevent contamination.
