A rotary wheel dehumidifier, also known as a desiccant dehumidifier, uses a rotating wheel filled with a desiccant material to remove moisture from the air. The wheel rotates slowly, continuously exposing different sections to incoming humid air, which is then dried as the desiccant absorbs the moisture.

   Simultaneously, another section of the wheel is exposed to a reactivation airflow, which heats the desiccant and releases the absorbed moisture, allowing the process to repeat continuously.

Structure of the Rotary Dehumidifier:

• Desiccant Material:

  The core component is a rotating wheel impregnated with a desiccant material, often silica gel, which has a high capacity to adsorb water. 

  
  
• Moisture Removal:

  As the humid air passes through the rotating wheel, the desiccant absorbs the moisture, leaving drier air to exit the dehumidifier. 

  
  
• Regeneration:

  To maintain the dehumidifying capacity, a separate airflow is used to heat the desiccant wheel, driving off the absorbed moisture. This regeneration process allows the wheel to continue absorbing moisture from the incoming air. 

  
  
• Continuous Operation:

  The continuous rotation of the wheel ensures that the dehumidification and regeneration processes occur simultaneously, providing a constant flow of dry air. 

Applications:

1. Industrial, Scientific Research, Military and Municipal Engineering

• Including small storage rooms, substations, museums, archives, control rooms, pump houses, laboratories, etc.
• Key Requirements:
  • Museums/Archives: Maintain humidity to prevent mildew damage to cultural relics and documents.
  • Substations/Control Rooms: Reduce corrosion risks to electrical equipment from moisture, avoiding short circuits.
  • Laboratories: Ensure constant humidity for experimental accuracy (e.g., chemical analysis, biological culture).

2. Scenarios with Strict Humidity Control (RH < 45% at 22℃-24℃)

• Covering production workshops, warehouses, and special technical rooms.
• Typical Industries:
  • Electronics Manufacturing: Prevent moisture damage to precision components (e.g., semiconductor chips, PCB production).
  • Pharmaceutical Warehousing: Comply with GMP standards to avoid drug deliquescence.
  • Lithium Battery Production: Control humidity to prevent electrolyte deterioration and ensure battery safety.

3. Scenarios with High Moisture Generation (Regardless of RH Requirement)

• E.g., food processing plants, car washing workshops, or areas with frequent water operations.
• Challenge: Moisture from processes (e.g., steam, cleaning) requires continuous dehumidification to prevent equipment corrosion.

4. Low-temperature and High-humidity Environments

• E.g., cold storage rooms (2℃-8℃) or outdoor facilities in rainy regions.
• Risk: Condensation on surfaces may damage materials (e.g., metal rust, insulation degradation).

5. Low-temperature Environments Prohibiting Condensation

• E.g., air-conditioned cold halls, refrigerated transport vehicles, or precision instrument rooms.
• Control Objective: Maintain dew-point temperature below ambient temperature to avoid water droplets on equipment surfaces.

JETEX JD Series Technical Performance Parameters

Successful Cases