DEHUMIDIFYING UNIT, LAYERED TEMPERATURE CONTROL DEHUMIDIFYING ELEMENT, DRYING DEVICE AND METHOD FOR TEMPERATURE CONTROLLING THE SAME

摘要

A dehumidifying unit, a layered temperature control dehumidifying element, a drying device and a temperature control method thereof are provided. The dehumidifying element has a plurality of dehumidifying units. The dehumidifying units are made of a direct heating desorption material and used for dehumidifying air by adsorption and capable of being regenerated by desorption. By performing temperature compensation through a preheater and performing a layered temperature control method on the dehumidifying element, the disclosure achieves a uniform temperature control on the air flow passage of the dehumidifying element so as to improve regeneration performance of the dehumidifying element and reduce energy consumption of the drying device.

主权项

1. A layered temperature control method for performing a uniform temperature control on a dehumidifying element of a direct heating desorption type drying device during regeneration, comprising the steps of:
performing a heating process, wherein a first dehumidifying unit of the dehumidifying element is heated by a preheater and thereby a plurality of dehumidifying units connected in series with the first dehumidifying unit are heated until the temperature of the dehumidifying element reaches a temperature range for regeneration; performing a temperature maintenance process, wherein heating is activated or stopped according to temperature variation of the individual dehumidifying units so as to maintain the regeneration temperature within a tolerable range; and performing a cooling process, wherein the preheater is stopped from heating the dehumidifying units and cooling air is provided to accelerate the cooling of the dehumidifying element.