The VSD Refrigerated Air Dryer uses a variable speed drive (VSD) compressor and electronic expansion valve to match cooling capacity to the actual heat load in real time.
The VSD Refrigerated Air Dryer uses a variable speed drive (VSD) compressor and electronic expansion valve to match cooling capacity to the actual heat load in real time. By automatically adjusting operating frequency (30~90/120Hz), it maintains a stable dew point without unnecessary overcooling, cutting energy consumption significantly.
Countercurrent flow heat exchange with small temperature difference between inlet and outlet increases the pre-cooling area and reduces the evaporative cooling capacity.
Through real-time monitoring of the target temperature, the unit judges the load situation and adjusts frequency accordingly. Wide range adjustment achieves accurate frequency matching across the full flow range.
By increasing the cross-sectional area for fluid flow, the internal flow velocity is reduced, achieving a lower pressure drop. This enables better gas-water separation and prevents blockages in the airway caused by foreign objects.
Large caliber zero gas drain, large displacement, not easy to plug, and no gas loss.
Standard Working Condition
| Item | Specification |
|---|---|
| Inlet Temperature | 45 °C |
| Inlet Pressure | 0.7 MPa |
| Ambient Temperature (Air-cooled) | 38 °C |
| Cooling Temperature (Water-cooled) | 32 °C |
| Outlet Dew Point | 7 °C |
| Inlet-Outlet Pressure Drop | 0.015 MPa |
| Operating Frequency | 30~90 / 120 Hz |
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The existing dryer had unstable dew point and high operating energy consumption. Textile production has certain requirements for compressed air dryness, and the existing equipment could not balance air quality and energy saving.
SolutionWe configured a VSD refrigerated air dryer that automatically adjusts operating frequency according to actual load, with a stable dew point meeting the production air demand. After commissioning, compressed air quality improved, the air supply is stable and reliable, and operating energy consumption is reduced.
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