Air condenser installation
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United States of America Patent
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Mar 20, 1990
Grant Date -
N/A
app pub date -
Apr 3, 1989
filing date -
Apr 3, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Air condensers are liable to suffer from undercooling which may entail frost damages and represents, in any case, thermo-dynamic losses. In order to prevent undercooling the working length (X) of the cooling surfaces of the air condensers (10) are controlled by shutters (28) which are associated with a drive mechanism (30) operated dependent on the temperature difference of condensates withdrawing from a first and a further row of tubes (18, 20) of the air condensers. By shutters (46) located in a gap (44) between the air condensers (10) the cooling air is enabled to recirculate whereby danger of frost and undesired risings of the temperature level of condensation may be avoided and impeded, respectively. A casing (68) encompassing the air condensers (10) and provided with shutters (64, 66) at its bottom and top permits starting without danger of frost likewise by means of recirculation. (FIG. 2)
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