Hybrid cooling plant
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United States of America Patent
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Oct 3, 2000
Grant Date -
N/A
app pub date -
Apr 14, 1999
filing date -
Apr 28, 1998
priority date (Note) -
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Abstract
A hybrid cooling plant includes at least one sector with a dry cooling part connected to a feed pump and including at least two heat exchangers which are connected in parallel, and with a wet cooling part located underneath the dry cooling part, wherein the dry cooling part and the wet cooling part are connected to each other by a closed connection. The highest locations of the heat exchangers are connected through a deaerating line to a vacuum pump and the heat exchangers are provided with evacuating and ventilating valves and level limit switches. The deaerating lines of the heat exchangers of a sector which operationally form a unit are connected to a deaerating vessel or reservoir. A water draining line is connected to the deaerating vessel and the water draining line ends below the water level of a water collecting basin located lower than the heat exchangers, wherein the deaerating vessel is connectable to ambient air through a deaerating line with a deaerating valve integrated in the deaerating line, and wherein the deaerating vessel is connected to the vacuum pump through an evacuating line in which an evacuating valve is provided which is coupled to the level limit switches provided for the heat exchangers.
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