| 摘要 |
<p>The invention relates to a natural draft cooling tower having a plurality of preferably roof-shaped heat exchange elements (1, 2) for the condensation of the turbine steam of a power station, the heat exchange elements (1, 2) supplied with the steam to be condensed via a common, centrally arranged steam feed line (3) and distribution lines (4) which branch off radially therefrom being connected in part in a condensing fashion and in part in a partially condensing fashion, the heat exchange elements (2) connected in a partially condensing fashion being arranged on the steam side downstream of the heat exchange elements (1) connected in a condensing fashion, and the heat exchange elements being distributed over a plurality of identical sectors (S) which in each case have complete lines for steam distribution as well as drainage of inert gas and condensate. In order, inter alia, to permit the best possible utilisation of the cooling tower floor area, it is proposed with the invention that the sectors (S) in each case have their own support structure (10), independent of the remaining sectors (S), for the heat exchange elements (1, 2), that the heat exchange elements (1) connected in a condensing fashion are arranged with their longitudinal axis on the support structure (10) in each case like a secant relative to the central steam feed line (3), and that the heat exchange elements (2) connected in a partially condensing fashion are provided with their own ventilators.
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