Oil free air compressors eliminate the pollution risk of oil pollution emissions to the environment and comply with green production standards; And some models reduce energy loss by optimizing aerodynamic design, resulting in higher energy efficiency than traditional equipment, eliminating the tedious process of regularly changing oil, filters, and disposing of waste oil, greatly reducing the complexity of operation and maintenance. At the same time, it reduces mechanical wear caused by oil sludge accumulation and extends the lifespan of key components.

The basic working principle of oil-free air compressor:

1. Centrifugal model: Based on the centrifugal force, when the motor drives the impeller to rotate at high speed, air is sucked in from the center and accelerated radially by the centrifugal force to be thrown out. During this process, the kinetic energy of the air is converted into static pressure energy, achieving boost output. This design relies on precise dynamic balancing technology and channel optimization to ensure efficient compression.

2. Vortex type model: adopts a double vortex disk structure, which compresses through two helical rotors that mesh with each other. Introduce external air into the machine during the inhalation phase; The compression stage utilizes dynamic sealing between rotors to form a closed chamber, gradually reducing the space to increase pressure; During the exhaust phase, high-pressure gas is released in an orderly manner. This non-contact operation mode eliminates the possibility of lubricating oil involvement.

3. Improvement plan for screw and piston types: Traditional oiled models usually rely on lubricating oil for lubrication and sealing, while oil-free versions use special material coatings, self-lubricating materials, or dry sealing technology to replace liquid grease. For example, some screw machines use water curtain barriers to isolate the transmission components from the airflow path, ensuring cooling and avoiding pollution.

Measurement steps for oil-free air compressor:

1. Appearance inspection: visually inspect the casing of the air compressor to confirm if there are any obvious signs of damage, deformation, or corrosion. At the same time, check if all connection parts are tightened and if there are any loose or leaking pipelines.

2. Stress testing: Use appropriate pressure detection equipment and perform partial pressure testing according to scientific methods such as the "three-stage pressure gradient detection method". Observe the pressure rise rate, stability, and whether the air compressor can reach the specified rated pressure at different pressure settings, record relevant data, and compare and analyze it with standard parameters to determine whether its performance meets the requirements.

3. Flow measurement: Use professional flow measurement instruments to measure the exhaust flow of the air compressor under specific operating conditions, ensuring that it can meet the actual gas demand. Multiple measurements can be taken under different load conditions to obtain more accurate flow range data.

4. Temperature monitoring: During the operation of the air compressor, real-time monitoring of temperature changes in various key parts, such as cylinders, motors, coolers, etc. Excessive temperature may affect equipment performance and lifespan, and even lead to safety accidents. Collect data through temperature sensors and analyze their trends to determine if there is any abnormal heating phenomenon.

5. Noise detection: Use sound level meters and other tools to measure the noise level generated by the air compressor during operation. Compare the measurement results with the relevant standards or manufacturer's specified limits to evaluate whether the noise control effect meets the standards. If the noise is too loud, it may be necessary to further investigate the cause and take noise reduction measures.

6. Gas quality testing: As oil-free air compressors are commonly used in situations where high gas purity is required, quality testing of the compressed air they output is necessary. This includes detecting whether there are pollutants such as oil, moisture, impurities, etc., to ensure that the gas quality meets the ISO8573-1 standard for water and oil free or other corresponding industry standards.