SISTEMA DE ENFRIAMIENTO PORA CONDENSAR EL VAPOR DE LAS PLANTAS DE TURBINA DE VAPOR, PARTICULARMENTE CENTRALES ELCTRICAS

• Main Authors: BODAS, JANOS, TRUSHIN, SERGEI GRIGORIEVICH, SANTURIAN, HERMES RUBENOVICH, PAPP, ISTVAN, DIAKOV, ANATOLY FIODOROVICH, AGEIEV, GEORGY SERGEIEVICH
• Format: Patent
• Language: Spanish
• Published: 16.12.1993
• Edition: 4
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACTWITHOUT CHEMICAL INTERACTION; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; STEAM OR VAPOUR CONDENSERS; WEAPONS

EL SISTEMA COMPRENDE UN CONDENSADOR DE MECLA (12) CONECTADO AL FLUJO EXTERIOR DE LA TURBINA DE VAPOR (10), UNA TORRE DE ENFRIAMIENTO SECO (14) CONECTADA AL CIRCUITO DE AGUA DE ENFRIAMIENTO (18, 22) DEL CONDENSADOR DE MEZCLA, Y UN APARATO DE ENFRIAMIENTO SECO DISPUESTO EN EL INTERIOR DE LA TORRE DE ENFRIAMIENTO. EL APARATO DE ENFRIAMIENTO SECO (28, 30, 32, 34, 36) SE SITUA AL MENOS PARCIALMENTE EN UNA CAJA (40) PARA CONDUCIR EL AIRE DE ENFRIAMIENTO DEL AMBIENTE DENTRO DE LA TORRE DE REFRIGERACION (14); LA CAJA (40) SE DISPONE DENTRO DE LA TORRE DE REFRIGERACION (14). EL APARATO DE ENFRIAMIENTO PUEDE COMPRENDER UN CAMBIADOR DE CALOR DE SUPERFICIE SECA (26), O, ALTERNATIVAMENTE, MEDIOS DE PULVERIZACION DE AGUA (64, FIG.4). LA CAJA ADEMAS RODEA UN CAMBIADOR DE CALOR DE SUPERFICIE SECA (44) DISPUESTO DESPUES DEL APARATO DE ENFRIAMIENTO (28, 30, 32, 34, 36) PARA CONSIDERAR LA DIRECCION DEL FLUJO (42) DEL AIRE DE ENFRIAMIENTO. EL AIRE CIRCULA DESDE EL APARATO DE ENFRIAMIENTO Y LLEGA A SER CALENTADO MIENTRAS ATRAVIESA LA SUPERFICIE DEL CAMBIADOR DE CALOR (44) Y, ASI, DISMINUYE EL GIRO DE LA TORRE DE REFRIGERACION (14) CUANDO SE MEZCLA CON EL AIRE QUE FLUYE A TRAVES DE LOS CAMBIADORES DE CALOR PRINCIPALES (16). A cooling system for condensing the exhaust steam of steam turbine plants, particularly of power plants, comprises a mixing condenser (12) connected to the outflow of the steam turbine (10), a dry cooling tower (14) connected to the cooling water circuit (18,22) of the mixing condenser, and a wet cooling apparatus provided inside the cooling tower. The wet cooling apparatus (28, 30, 32, 34, 36) is located at least partly in a box (40) for conducting ambient cooling air into the cooling tower (14), the box (40) being arranged inside the cooling tower (14). The wet cooling apparatus may comprise a wet surface heat exchanger (26), or, alternatively, water spraying means (64, Fig. 4). The box further encompasses a dry surface heat exchanger (44) provided after the wet cooling apparatus (28, 30, 32, 34, 36) as regards the flow direction (42) of cooling air. The air withdrawn from the wet cooling apparatus becomes warmed up while traversing the dry surface heat exchanger (44) and, thus, does not diminish the draft of the cooling tower (14) when mixing with the air flowing in through the main heat exchangers (16) of the latter.