What are the requirements of modern industry for oil-free air compressors

What are the requirements of modern industry for oil-free air compressors

After the air is mechanically compressed, it becomes compressed air. The equipment used to produce compressed air is usually called an air compressor. Compressed air is an indispensable pneumatic energy source in people's production and life. With the continuous development of modern industry, the requirements for compressed air quality have become higher and more diverse. The requirements of modern industry for compressed air can be divided into the following aspects:

　　1) Pressure and flow requirements: any occasion where compressed air is required has requirements for the pressure and flow of compressed air. At present, the most common pressure value is around 0.7MPa (g). In some special occasions, such as the glass industry, the pressure requirement for compressed air may be about 0.2-0.4 MPa (g); in some military enterprises, the pressure requirement for compressed air may be tens of MPa. There are various air compressors on the market that can meet these requirements.

2) Requirements for dryness (ie moisture content or dew point temperature): Different processes have different requirements for compressed air dew point temperature. For example, the pressure dew point of compressed air used as an instrument is generally required to be below -40 ℃, while in semiconductor chips The factory may require the pressure dew point of compressed air to be -70°C, but in most cases, it is sufficient to require the dew point temperature of compressed air to be around 0°C. The dew point requirement of compressed air is usually achieved by compressed air dryers.

　　3), life expectancy

1. Ordinary oil-free machine can work continuously for 500 hours without pressure, our oil-free machine can work continuously for 12,000 hours under pressure; if used intermittently, the life of our oil-free machine is 30,000 hours Above, the normal one is within 5000 hours;

2. The contact surface between the piston and the cylinder liner of the ordinary oil-free machine is 1%, which is easy to be high temperature; the contact surface between the piston and the cylinder liner of our oil-free machine is 100%, so there will be no high temperature, and our piston material is made of German PEEP. Wear-resistant sealing material.

　　3. Ordinary oil-free machines use domestic bearings in terms of bearings. Our oil-free machines use imported SKF bearings, which guarantees the stability of work;

　　4) In terms of operating environment, the protection level of ordinary oil-free machines is IP54. Our oil-free machines have a protection level of IP55 at the lowest and IP67 at the highest. They can also work normally in water, so they can be used in various environments.

5) In terms of maintenance cost, in the harsh environment, our machine replaces the air filter every six months. The cost of 2 air filters is about 10 yuan, so the annual maintenance cost is about 20; ordinary oil-free machines are in harsh environmental conditions The cylinder liner, seal ring, air filter, and piston ring need to be replaced every three months. The cost is about 500 yuan, so the maintenance cost and maintenance cost of our oil-free machine are low.