The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 1980
Filed:
Dec. 04, 1978
Norman F Bradshaw, Surrey, GB;
Schweitzer Industrial Corporation, Madison Heights, MI (US);
Abstract
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 absorption of the water vapor from the incoming air.The circulated absorption liquid is cooled to eliminate the heat developed by the dehumidification by a portion of the heat being rejected into the air exhausted from the paint spray booth. In one version, heat pump units are used to extract the remaining portion of the rejected heat with the extracted heat transferred to a regenerator heat exchanger utilized to provide 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.