Method and device for conditioning of breathing air for divers

Details Method and device for conditioning of breathing air for divers Method and device for conditioning of breathing air for divers

1980-01-29

1981-09-08

Chiesa, Richard L.

Gas and liquid contact apparatus

With external supply or removal of heat

Processes

12820327, 12820413, 12820414, 12820417, 219274, 261 65, 261 99, 261107, 261119R, 261129, 261142, 261DIG65, 405185, B01F 304

Patent

active

042883962

ABSTRACT:
There is disclosed a method and a device for conditioning of heated breathing air for divers.
Breathing air supplied from compressed air containers through pressure reducing valves is very cold and dry. Heating of breathing air makes the air even drier and, due to the low specific heat of air it cannot supply the diver with a substantial amount of heat.
According to the invention the air is heated to above the body temperature of the diver and humidified to close to saturation. Upon inhalation the air temperature is lowered whereby some of the vapor will condense and give off its heat of evaporation. The device according to the invention contains air passages wherein the air is heated, humidified by means of wicks or a tube provided with a nozzle arranged in a Venturi portion connected to a water tank, and an air temperature regulating device.

REFERENCES:
patent: B403507 (1976-02-01), Robinson
patent: 1072133 (1913-09-01), Lyle
patent: 2921776 (1960-01-01), Keeping
patent: 3128739 (1964-04-01), Schultz
patent: 3332672 (1967-07-01), Schipper
patent: 3358413 (1967-12-01), Kalika
patent: 3735568 (1973-05-01), Beck
patent: 3836129 (1974-09-01), Perelmutr et al.
patent: 3954920 (1976-05-01), Heath
patent: 4014382 (1977-03-01), Heath
patent: 4051205 (1977-09-01), Grant

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