Coated heat exchanger for humidifier

Details Coated heat exchanger for humidifier Coated heat exchanger for humidifier

1992-01-27

1993-04-06

Ford, John K.

Heat exchange

Structural installation

165110, 165174, 165133, 165 13, 165132, 122 32, 122504, 261153, 261DIG15, 126113, 237 78R, F02M 2314, F02M 3100, F28F 1318, F28F 1902

Patent

active

051994860

ABSTRACT:
A heat exchange humidifier for generation of steam-to-steam or fluid-to-steam humidity may include at least one steam tube in a heat exchanger array which may be coated with a non-stick surface such as tetrafluoroethylene (TEFLON.RTM.) coating or the like, to prevent the build-up of minerals. The steam tubes in the heat exchanger array are in a substantially layered configuration, each layer being offset and below the preceding upper layer, or in helical configuration. This organization of the tubes in the heat exchanger array maximizes convection currents in a fluid surrounding the steam tubes to minimize dead water films and maximize heat transfer from the steam or fluid inside of the tubes to the surrounding water, resulting in an overall increase in boil-off capacity for adding humidity to the air. A second embodiment utilizes a baffle in a supply manifold to the steam tubes which prevents air from being trapped in the steam tubes during system start-up and induces a more even rate of steam flow through the tubes.

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