标题:How to set the regeneration temperature of the desiccant dryer?
作者:
日期:2020-06-08 14:17:54
内容:
Many industrial productions are inseparable from the dehumidifier dryer. Generally speaking, there are two types of dehumidifier dryer regeneration, one is thermal regeneration, and the other is thermal regeneration. How to set the regeneration temperature of the desiccant dryer? Thermal regeneration is based on the principle of pressure swing adsorption and regeneration cycle du, using micro-heating (or external heating) regeneration method to adsorb and dry compressed air; the regenerated adsorbent contains a certain residual temperature, so it will cause the outlet temperature rise.
Many industrial productions are inseparable from the dehumidifier dryer. Generally speaking, there are two types of dehumidifier dryer regeneration, one is thermal regeneration, and the other is thermal regeneration. How to set the regeneration temperature of the desiccant dryer?
Thermal regeneration is based on the principle of pressure swing adsorption and regeneration cycle du, using micro-heating (or external heating) regeneration method to adsorb and dry compressed air; the regenerated adsorbent contains a certain residual temperature, so it will cause the outlet temperature rise.
Another heatless regeneration, Betten heatless regeneration dryer is the use of dried air through the adsorbent saturated with water, so that the adsorbent precipitates moisture. The process does not cause the temperature of the outlet gas to rise.
Dehumidification dryer
About the temperature setting of the dehumidification dryer, we should be clear that the drying time recommended by the supplier of the dehumidification dryer is 4hr, and the processing capacity is 100lb/h (1lb=0.4536Kg). To determine whether the air flow of the desiccant dryer is sufficient, you can measure the temperature curve in the drying bin. Here, pay special attention to the temperature at 4hr (400lb).
If the temperature at the 400lb level in the drying bin of the dehumidification dryer reaches the set value, then the air flow can be considered to be sufficient (the dehumidification dryer does not use raw materials). If only the materials at 1hr, 2hr or 3hr are fully heated in the drying silo, it means that the gas flow cannot complete the heating and drying of the materials at the predetermined yield.
Dehumidification dryer
If the materials are not properly dried after coming out of the dehumidifier, you should check whether the drying bin has enough space to provide sufficient and effective drying time. The effective drying time of the desiccant dryer refers to the time when the particles are actually exposed to the appropriate drying temperature and dew point.
Also check the return air temperature of the dryer from time to time. When the temperature of the return air is high, it may indicate that for this productivity, the size of the dryer is too large, or the temperature when the material enters the drying bin is too high. In order to prevent the temperature of the return air from becoming high, a heat exchanger needs to be installed on the return air path , To ensure that the desiccant can effectively remove the moisture in the dry air to ensure the drying effect.