F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
45/9
F24F 3/14 (2006.01) B01D 53/26 (2006.01) F24F 3/147 (2006.01)
Patent
CA 1087394
ABSTRACT OF THE DISCLOSURE A system and method for conditioning the air supplied to a paint spray booth enclosure in which the air is dehumidified during summertime operation by liquid ab- sorption of the water vapor from the incoming air. The cir- culated absorption liquid is cooled to eliminate the heat developed by the dehumidification and a portion of the heat rejected into the exhaust air from the paint spray booth. In one version, heat pump units are used to extract the re- maining portion of the rejected heat with the extracted heat transferred to a regenerator heat exchanger utilized to pro- vide heat to reconcentrate the liquid absorption solution. The heat pumps are also utilized to cool the supply air and the heat so extracted is also used to heat the absorption liquid during regeneration. During wintertime operation, the heat pump units extract heat from the exhaust air of the paint supply booth of the heat exchanger arrangement and transfer it into a heat transfer loop utilized to preheat the incoming air as well as to heat a dilute solution of the absorption liquid used to humidify the air. In another version, the cooled exhaust air from the spray booth directly cools the absorption liquid and the incoming ambient air by an air-to-liquid heat exchanger, and a secondary waste heat source is utilized in regeneration of the absorption liquid.
321744
Schweitzer Industrial Corporation
Smart & Biggar
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