Based on experiences obtained in operation of large-scale direct air-cooled units, the prob-lems existing in operation of direct air-cooled units during summer and winter seasons at present, such as the influence of large wind, the recirculation of hot air,and the fouling on air-cooled condens-er,etc. ,have been analysed,and measures needed to adopt for ensuring safe operation of said units in summer and winter seasons being put forward. At the same time, the supervision and regulation of air-cooled units have been strengthened, preventing units from outage accident occurred in summer and freezing phenomenon appeared in winter.%根据大型直接空冷机组运行经验,分析目前直接空冷机组在夏季和冬季运行中存在的问题,如大风的影响、热风回流、空冷凝汽器污垢等,提出保证直接空冷机组在夏、冬季安全运行应采取的措施.同时,加强直接空冷机组的监督及调整,防止机组夏季停机冬季冰冻现象的发生.
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