Process flow diagram

Working Principle

The high-temperature and high-humidity compressed air from the air compressor first passes through a heat exchanger, where it exchanges heat with the already dried and cooled compressed air, thus lowering its temperature. It then enters the evaporator, where it is further cooled to about 2°C. At this pressure dew point, most of the water vapor condenses into liquid water and is discharged. Afterward, the compressed air with a very low moisture content enters the adsorption tower for further drying and dehumidification, producing finished air with a much lower dew point. Finally, the low-temperature dried compressed air enters the heat exchanger, cooling the incoming high-temperature, high-humidity air while its own temperature rises. This prevents condensation on the external surface of the conveying pipeline. A small portion of the warmed compressed air is used for adsorbent regeneration, improving regeneration efficiency and reducing energy consumption. Its unique "low-temperature adsorption and normal-temperature regeneration" working principle ensures a significant reduction in regeneration air consumption and dew point.

Product Features

• The refrigerated dryer, adsorption dryer, and oil removal filter are integrated into one compact and rational design for easy installation and operation.
• Excellent drying performance, low dew point, high-quality finished air, and low regeneration air consumption.
• Long working cycle; the desiccant lifespan is more than three times longer than that of conventional adsorption dryers, reducing maintenance costs.
• Microcomputer program control enables fully automated operation.
• Equipped with an imported dew point meter, PLC LCD display, high dew point alarm, interlock, and communication interface with an upper-level computer (optional).

Operating Conditions and Technical Specifications

• Inlet pressure: 0.4–1.0 MPa (orders accepted below 6.4 MPa)
• Pressure loss: ≤ 0.05 MPa
• Inlet temperature: 50 °C or 80 °C
• Cooling method: air-cooled or water-cooled
• Outlet air dew point: −40 °C to −70 °C
• Ambient temperature: ≤ 40 °C; cooling water temperature: ≤ 32 °C
• Regeneration air consumption: 3%–5%
• Desiccant: activated alumina (with molecular sieve)
• Control method: microcomputer program control
• Installation: indoor, no foundation required, concrete floor leveling
• Regeneration type: WZ type – heatless regeneration; MZ type – micro-heat regeneration

Model Specifications and Performance Parameters