Air cooled condenser installation

An air cooled condenser installation comprising first heat exchange means comprising a plurality of rows of substantially upright tubes adapted to be impinged by a stream of cooling air in a direction transverse to the longitudinal direction of the tubes, each of the tubes having an upper and a lower open end;

• an upper manifold communicating with the upper open ends of said tubes;
• a lower collecting chamber communicating with the lower open ends of said tubes;
• a steam conduit communicating with said upper manifold so that steam passing therethrough flows downwardly through said tubes to partly condense with the thus-formed condensate flowing likewise downwardly into said lower collecting chamber;
• second heat exchange means comprising a plurality of second rows of substantially upright tubes adapted to be impinged by a second stream of cooling air flowing transverse to the elongation of said second tubes, each of said tubes in said second rows having an upper and a lower open end;
• a lower distribution chamber communicating with the lower open ends of the tubes of said second rows;
• an upper distribution chamber communicating with the upper open ends of the tubes of said second rows;
• a connecting steam conduit connecting said lower collecting chamber of said first heat exchange means with said lower distribution chamber of said second heat exchange means so that steam which has not been condensed in said first heat exchange means flows upwardly through said tubes of said second rows of tubes from said lower to said upper distribution chamber to thereby condense with the thus-formed condensate flowing in countercurrent direction to the steam;
• said second heat exchange means including further a plurality of additional substantially upright tubes having each an upper and a lower open end and being arranged in front of the tubes of said second rows to be first impinged by said second stream of cooling air, said additional tubes communicating at the lower ends thereof with said lower distribution chamber;
• and a branch conduit branching off from said steam conduit and communicating with the upper open ends of said additional tubes so that steam passing therethrough flows downwardly through said additional tubes and condenses with the thus-formed condensate flowing in the same direction as the steam.