heatless purge desiccant air dryer

heatless purge desiccant air dryer for pneumatic tools

heatless purge desiccant air dryer is a kind of high efficient air drying equipment, which adopts heatless regeneration technology to provide low dew point dry air by periodically adsorbing and regenerating moisture in the air.

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Description

The heatless purge desiccant air dryer is designed for industrial applications requiring strict energy consumption control and efficient moisture removal from compressed air. Its energy-saving, heatless regeneration technology, combined with advanced intelligent control, makes it an ideal solution for industries where dry air quality and operational cost efficiency are both critical.

Features of Heatless Purge Desiccant Air Dryer

  1. Energy-saving design: Utilizes heatless regeneration technology, eliminating the need for additional heating, lowering energy consumption and operational costs.
  2. High-efficiency dehumidification: Effectively removes moisture, delivering dry air with a low dew point to ensure stable equipment and process operation.
  3. Long-term stability: Uses activated alumina or molecular sieve as desiccant for reliable, long-lasting performance and simple maintenance.
  4. Intelligent control: Equipped with a PLC intelligent control system for automated operation and precise control of working cycles and regeneration.
  5. Wide adaptability: Operates stably in various environments with inlet temperatures from 0°C to 45°C and adjustable working cycles for different needs.

Technical Parameters

  • Regeneration gas quantity: ≤12% to 15%
  • Working pressure: 0.6 MPa to 1.0 MPa
  • Inlet gas oil content: ≤0.01 ppm
  • Pressure dew point: -20°C to -40°C
  • Drying agent: Activated alumina or molecular sieve
  • Working cycle: 4 to 20 minutes
  • Inlet gas temperature: 0°C to 45°C

Working Principle

  1. Adsorption process: Wet air passes through the desiccant bed (activated alumina or molecular sieve), which adsorbs moisture and outputs dry air.
  2. Regeneration process: Uses a portion of dried air to purge the desiccant, removing adsorbed moisture and restoring its drying capacity—no additional heat required, ensuring low energy use.
  3. Cyclic operation: Adsorption and regeneration alternate continuously, delivering stable, low-dew-point air. Cycle times adjust according to intake volume and load.

Application Areas

  • Electronics manufacturing: Prevents moisture damage to precision electronic components by providing stable dry air.
  • Food processing & packaging: Ensures moisture-free air during food production, extending product freshness.
  • Pharmaceutical industry: Supplies high-quality dry air for hygienic, quality-compliant production environments.
  • Precision instruments: Delivers water-free air for manufacturing precision equipment, maintaining accuracy and reliability.
  • Pneumatic tools: Reduces mechanical failures and extends tool life by providing dry air.
  • Automotive industry: Supports spraying and precision processing with stable, dry air for improved efficiency and product quality.

Standard Configuration

  • PLC intelligent control system for automated cycle management
  • High-efficiency desiccant (activated alumina or molecular sieve)
  • Airflow regulation system for optimized regeneration
  • Pressure dew point detection (-20°C to -40°C monitoring)
  • Compact, easy-to-install design

Optional Functions

  • Dew point control system for real-time monitoring and adjustment
  • Touch screen display for intuitive operation and status monitoring
  • Advanced alarm system for automatic abnormality detection and timely maintenance alerts