Patent ID: 6126151
Filing Date: 2000-10-03
Classification: F28C,Y02B

Abstract:
A hybrid cooling plant comprising 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, wherein highest locations of the heat exchangers are connected through deaerating lines to a vacuum pump and the heat exchangers are provided with evacuating and ventilating valves and level limit switches, wherein the deaerating lines of the heat exchangers of a sector which operationally form a unit are connected to a deaerating vessel, wherein a water draining line is connected to the deaerating vessel and the water draining line ends below a water level of a water collecting basin located lower than the heat exchangers, wherein the deaerating vessel is connectable to ambient air through a ventilating line with a ventilating valve integrated in the ventilating line, and wherein the deaerating vessel is connected to the vacuum pump through an evacuating line in which an evacuating valve is provided, and wherein the evacuating valve is coupled to the level limit switches provided for the heat exchangers.