Low-temperature dryer

Details Low-temperature dryer Low-temperature dryer

2006-05-09

2006-05-09

Jiang, Chen Wen (Department: 3744)

Refrigeration

Processes

Treating an article

C062S272000, C165S155000

Reexamination Certificate

active

07040100

ABSTRACT:
A low-temperature dryer, especially a compressed air low-temperature dryer, for drying of a gaseous working fluid with cooling of the gaseous working fluid by use of a refrigerant comprises a pre-heat exchanger section (11) and a main heat exchanger section (12), in which the pre-heat exchanger section (11) and/or the main heat exchanger section (12) comprises at least one, preferably elongated heat exchanger element. Cooling of the working fluid introduced to the low-temperature dryer occurs here in the pre-heat exchanger section (11) from the dried and cooled working fluid. Additional cooling of the precooled working fluid passed through the low-temperature dryer occurs in the main heat exchanger section (12) from the refrigerant, so that moisture is condensed from the working fluid. All flow channels (21, 22) of the pre-heat exchanger section (11) and/or the main heat exchanger section (12) are formed essentially by hollow chamber profiles.

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