How does the air compressor ensure that there is no water

Core Technical Measures of Air Compressor to Ensure No Water

compressed air will carry a large amount of water vapor due to the increase in temperature during the compression process, and it is easy to condense into liquid water after cooling. To ensure a dry gas output, the moisture is controlled by the following steps:

1. Primary treatment of condensate water

• cooling: through after cooler(Air cooling/water cooling) The high-temperature compressed air is rapidly cooled to ambient temperature, which promotes the condensation of water vapor into liquid water.

• Mechanical drainage: Install at the low point of gas storage tank and pipeline automatic drain valve, Timed discharge of condensate (such as electronic timing valve or float drain).

2. Deep drying treatment

• freeze dryer:
  • principle: The compressed air is cooled to 2~5°C through the refrigeration system, and the water vapor is condensed and discharged through the gas-water separator.
  • Effect the pressure dew point can reach 3~5 ℃ (suitable for general industrial scenes).
• adsorption dryer:

  • principle: The use of silica gel, activated alumina and other desiccant adsorption of moisture, two towers work alternately to achieve continuous dehumidification.

  • Effect: The pressure dew point can reach below -40 ℃ (suitable for high clean scenes, such as food and electronics).

3. Filtration and monitoring

• fine filter: Configure after dryer 0.01μm oil-water separator, intercept residual liquid water and oil mist.

• dew point detection: Install online dew point meter to monitor the water content of compressed air in real time to ensure compliance with ISO 8573-1 standard (such as Class 4 dew point ≤ 7 ℃).

4. System design and maintenance

• pipeline Design: Adopt inclined pipeline layout (slope ≥ 1:100) to facilitate the natural discharge of condensed water.
• Regular maintenance:

  • replace the desiccant (adsorption dryer every 2-3 years).

  • Clean the condenser (refrigerated dryer once a month).

  • Verify drain valve function (quarterly).

Application Scenarios and Standards

• food grade oil-free and water-free: Oil-free air compressor adsorption dryer shall be combined to reach ISO 8573-1 Class 1 (oil content ≤ 0.1 mg/m & sup3;) and dew point ≤-40 ℃.
• general industry: The automatic drain valve of the freeze dryer can meet the needs of most pneumatic tools.

Through the above measures, the problem of moisture in compressed air can be systematically solved to ensure the safety and quality of downstream equipment or processes.