Process Flow and Principle Diagram

Taking Tower A in drying mode and Tower B in heated regeneration mode as an example — compressed air enters, and the pneumatic inlet switching valve (No. 1) opens. The wet compressed air flows into Tower A for drying and then passes through the exhaust check valve to output dry air. Tower B undergoes heated regeneration: the blower draws in ambient air, which passes through the heater and is heated. The regenerated air flows through the regeneration valve (No. 10) into Tower B, removing moisture from the desiccant to regenerate it. Finally, the air is discharged through the exhaust pneumatic valves (No. 4–5). As heating continues, the temperature in Tower B gradually rises. After a set heating period, the heater powers off, and the regenerated air is cooled in a closed-loop cycle — this is the cooling phase. The system operates stably according to the preset cycle.

Operating Conditions and Technical Specifications

• Inlet Air Temperature: 5℃–45℃
• Operating Pressure: 0.5–1.0 MPa
• Power Supply: 380V/3Ph/50Hz
• Cooling Water Inlet Temperature: ≤32℃
• Cooling Water Inlet Pressure: 0.15–0.4 MPa
• Product Air Dew Point: -20℃ to -70℃ (optional)
• Desiccant: Activated alumina or mixed molecular sieve
• Operation Mode: Two adsorption towers alternating for continuous operation
• Inlet Oil Content: ≤0.1 ppm
• Inlet/Outlet Pressure Loss: ≤0.02 MPa
• Operating Cycle: T = 60–480 minutes
• Rated Conditions: Operating Pressure 0.8 MPa, Inlet Air Temperature 38℃, Ambient Temperature 35℃, Pressure Dew Point -40℃
• Blower Inlet Condition: 40℃ @ 70% RH, Regeneration Air Consumption: 0
• Installation: Indoor, no foundation required, leveled concrete floor, Ambient Temperature 0℃–45℃

Model Specifications and Performance Parameters

Note:

1. Optional configurations: 1) Dew point meter, 2) Dew point control function, 3) False action alarm, 4) Bypass piping for the entire unit, 5) Front/rear filters installed on the unit, 6) PLC, touch screen, and other components from brands such as Siemens or ABB, 7) Communication options from RS485 I/O, Profibus, Modbus to Ethernet.

2. Customization is available for inlet air pressures exceeding 1.0 MPa, all-stainless-steel construction, steam or other waste heat heating methods, non-compressed-air media handling, and other special applications.

3. Technical parameters are subject to change; the actual product shall prevail without further notice.