| 摘要 |
FIELD: heat-power engineering, chemical, light and food-processing industries; heat exchange apparatus. SUBSTANCE: tube system includes tube bundles and main and intermediate tube sheets. Device for receiving and discharging condensate is made in form of longitudinal grooves on surface of tube sheet. Grooves (projections) are located between rows of holes for tube and are inclined downward inter-bundle of tube sheet free from holes, thus draining condensate over this section. Each tube is inclined relative to level, grooves or projections are made on surface of tube sheet to which tubes are inclined, thus making it possible to receive and discharge condensate flowing over inclined tubes. Thus receiving and discharging condensate may be performed without blocking up steam space of condenser; effective preheating and deaeration of condensate are performed on inter-tube section of tube sheet. EFFECT: enhanced efficiency of preheating and deaeration of condensate; reduced usage of metal. 2 cl, 3 dwg
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