RESPIRATION AIR SUPPLY DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce to a desired temperature fitted to respiration in a simple structure when guiding a heated compressed air generated by an air compressor and purified by a purification device to a protective mask.

SOLUTION: This respiration air supply device is so constituted that the compressed air generated by a compressed air generating device is cooled and dehumidified by a cooling/dehumidifying device condensing, evaporating and circulating refrigerant and heated by a heater, and the heated air is supplied to a worker via a hose as the respiration air formed by removing harmful substances by a harmful substance removal device. This air supply device is provided with a detour route as a route for passing the compressed air except for a route for passing through a heater and a mixing valve mixing the compressed air fed from the both routes, in a confluence.

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