How to lubricate an oil-free air compressor
Water-lubricated screw air compressors use water as lubricating and sealing medium to achieve oil-free compression. The core of this is to use the physical characteristics of water to replace traditional lubricating oils to ensure that the compression process is completely oil-free. The following is a detailed explanation:
1. Lubrication principle
Water-lubricated screw air compressors use water as lubricating medium to replace traditional lubricating oil. During compression, water is injected between the screw rotors, forming a water film. This water film not only plays a lubricating role and reduces friction and wear between the rotors, but also plays a sealing role to prevent gas leakage. At the same time, water also has a good cooling effect, which can take away the heat generated during the compression process and ensure stable operation of the compressor.
2. Structural characteristics
The main components of a water-lubricated screw air compressor include the screw rotor, water circulation system, filtration system and control system. The screw rotor is the core component of the compressor. Its surface has been specially treated and has good wear resistance and corrosion resistance. The water circulation system is responsible for injecting water into the compression chamber and recycling it to ensure continuous stability of lubrication and cooling effects. The filtration system is used to remove impurities and microorganisms from the water and prevent them from contaminating the interior of the compressor. The control system is responsible for monitoring the operating status of the compressor to ensure its safe and stable operation.
3. Advantages and Applications
- Environmental Protection: Since water is used as the lubricating medium, water-lubricated screw air compressors will not produce oil mist and oil stains during operation, and will not pollute the environment.
- energy saving: Water has a large specific heat capacity and good cooling effect, which can reduce the operating temperature of the compressor and reduce energy consumption.
- low maintenance costs: The water-lubricated screw air compressor has a simple structure, few parts, easy maintenance, and no need to replace lubricating oil, reducing maintenance costs.
- widely used: Due to its oil-free, environmentally friendly, energy-saving advantages, water-lubricated screw air compressors are widely used in semiconductors, medicine, food and other industries that require high-quality compressed air.
4. Maintenance and maintenance
In order to ensure stable operation and extend service life of water-lubricated screw air compressors, the following maintenance and maintenance are required:
- water quality management: Regularly test the water quality to ensure that there are no impurities and microorganisms in the water. If the water quality does not meet the requirements, it needs to be replaced or dealt with in time.
- component inspection: Regularly check the wear and corrosion of screw rotors, water circulation systems, filtration systems and other components. If there is any abnormality, replace or repair it in time.
- cleaning and maintenance: Regularly clean dust and dirt inside and outside the compressor to ensure good heat dissipation.
- Replace filter elements regularly: According to the differential pressure alarm, regularly replace filter elements at all levels to ensure the filtering effect.
