Method and apparatus for supplying a temperature conditioned airflow to an open compartment in an explosion sustaining ambient surrounding

摘要

This invention discloses the combination of (1) a liquid temperature conditioning apparatus located exteriorly of a potential explosion sustaining zone, (2) an explosion proof air-liquid heat exchange device located within a potential explosion sustaining zone, and (3) air ducts interconnecting the air-liquid heat exchange device with the interior of a compartment open to the ambient and containing explosion sustaining vapors, such as the interior of an integral fuel tank compartment in an aircraft containing vapors arising from highly volatile hydrocarbon fuels normally carried therein. This combination further includes a closed-loop liquid circuit interconnecting the liquid temperature conditioning apparatus exterior of the explosion sustaining zone and the air-liquid heat exchange device located within the explosion sustaining zone, along with a blower means associated with the air-liquid heat exchange device whereby air ambient to the air-liquid heat exchange device within the explosion sustaining zone is temperature conditioned by being blown through an air-liquid heat exchange coil and supplied to the compartment interior.PPBy appropriate control of the liquid temperature conditioning apparatus, the compartment interior can be continuously supplied by temperature conditioned air that is either cooled or heated.