Freeze-thaw air dryer

Details Freeze-thaw air dryer Freeze-thaw air dryer

1990-10-22

1992-06-09

Makay, Albert J.

Refrigeration

With means preventing or handling atmospheric condensate...

62 34, 34 32, 55440, 165111, F25B 2102, F25D 2100

Patent

active

051196409

ABSTRACT:
A freeze-thaw air dryer utilizes a heat pump to remove moisture from air by cooling the air to below the freezing point of water, causing the water to pass directly from the vapor state to the solid state and thereby to be removed from the flow of air. The vapor frozen on the cold surfaces is periodically thawed by either turning off or reversing the heat pump, and the condensate and thawed ice are automatically drained out of the device without interruption of the airflow. The geometry of the cold surfaces and the generally centripetal airflow path are designed expressly to cause a buildup of ice without impairing efficiency or blocking the airflow.

REFERENCES:
patent: 1093869 (1914-04-01), Leinert
patent: 1950020 (1934-03-01), Bleibtreu
patent: 2215486 (1940-09-01), Stone
patent: 2686406 (1954-08-01), Pessoa
patent: 4287724 (1981-09-01), Clark
patent: 4297849 (1981-11-01), Buffet
patent: 4400948 (1983-08-01), Moorehead
patent: 4615176 (1986-10-01), Tippmann

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