WE CLAIM:
1. A drying facility for painting arranged such that by
feeding air heated by a heating means and air dehumidified by a
dehumidifying means to a treating chamber, evaporation of liquid
content present in an undried paint coating on a painting object placed
in this treating chamber is promoted;
wherein as the dehumidifying means, there is provided an adsorption/desorption type dehumidifying device including an air-permeable adsorption rotor carrying an adsorptive agent, the rotor having a plurality of rotor portions along a rotational direction of the rotor, each rotor portion being brought, in alternation in association with rotation of the rotor, to an adsorption area through which dehumidification-subject air is caused to flow and a desorption area through which desorbing air is caused to flow;
wherein there are provided a dehumidification forward passage for guiding air withdrawn from the treating chamber as dehumidification-subject air to the adsorption area and a dehumidification return passage for guiding air past through the adsorption area to the treating chamber;
wherein a desorption heat pump is provided for heating desorbing air to be flown through the desorption area with utilizing, as a heat sink, dehumidified air which has flown through the adsorption area and sent to the dehumidification return passage; and
wherein there is provided a sensible-heat heat exchanger configured to cool the dehumidification-subject air present in the dehumidification forward passage through a heat exchange reaction with dehumidified air present in the dehumidification return passage which has been cooled via absorption of its heat by the desorption heat pump.
2. The drying facility for painting of claim 1, wherein at a
location upstream of the sensible-heat heat exchanger in the
dehumidification forward passage, an ambient air introduction passage
is provided for merging ambient air for treating chamber ventilation
with the dehumidification-subject air in the dehumidification forward
passage.

3. The drying facility for painting of claim 1 or 2, wherein an aft-stage cooler is provided for cooling the dehumidification-subject air in the dehumidification forward passage cooled by the sensible-heat heat exchanger through a heat exchange reaction with cooling water fed from a cooling tower or ambie n t a i r.
4. The drying facility for painting of any one of claims 1-3, wherein:
there are provided a heating forward passage for guiding the air withdrawn from the treating chamber to the heating means and a heating return passage for guiding the heated air heated by the heating means to the treating chamber;
the dehumidification forward passage is branched from the heating forward passage to be connected to the adsorption area; and
the dehumidification return passage is extended from the adsorption area to be connected to the heating return passage.