Insufficient regeneration temperature or pressure, insufficient heating temperature, low regeneration pressure, or insufficient vacuum degree result in incomplete desorption of adsorbates. Insufficient regeneration gas volume or time, insufficient regeneration gas flow rate, excessive exhaust pipe bends, or clogged noise reduction filters can cause poor regeneration gas flow.
Regeneration valve malfunction, valve leakage, blockage or abnormal operation, affecting the regeneration process. Heater malfunction, heater damage, short circuit or open circuit, resulting in the regeneration temperature not meeting the standard. The design problem of the adsorption tower is that the structure of the adsorption tower is unreasonable, resulting in uneven airflow distribution or dead corners.
Regeneration program error, controller program error, or operator's failure to follow procedures, resulting in insufficient regeneration time or incorrect steps. Switching logic error, dual tower switching valve failure or program controller malfunction, resulting in simultaneous adsorption or regeneration of both towers.
Adsorbent aging or failure, prolonged use of adsorbent, resulting in pore blockage or loss of active ingredients. The problem of adsorbent filling is that the adsorbent is not tightly packed, has voids or uneven particle size, resulting in short circuiting of the airflow.
Abnormal intake temperature or pressure, excessive intake temperature or pressure drop, exceeding the adsorbent treatment capacity. The intake contains liquid water, and the pipeline layout from the outlet of the air compressor to the inlet of the dryer is improper, resulting in the intake containing liquid water.
Sensor malfunction, such as dew point meter and CO ₂ analyzer, leads to data distortion. Accumulation of historical impurities that have not been regenerated for a long time, resulting in the accumulation of impurities that cannot be completely removed with a single regeneration.
