【摘要】 自然通风直接空冷(NDACC)技术,因其具有节能(省厂用电1.15%),环保(无风机群体噪声),安全发电(不因大风跳闸停机),维修工作量少等优点,完全符合节约资源和环境保护的基本国策,可在我国北方低寒冷区普遍开发应用。文中简述国产化单排管型出现为NDACC实施提供条件,概述自然通风特点、适用条件以及与600 MW机组ACC系统的技术经济比较,详述600 MW机组采用NDACC系统时在直接空冷塔内空冷凝汽器散热管束的布置情况,防冻措施和塔位布置。更多还原

【Abstract】 Natural Draft Direct Air Cooled Condenser(NDACC) has the advantages of energy saving,environmental protection,power generation safety and less maintenance,it should be more widely applied in low-temperature zone in North China,in according with the basic national policy of the energy saving and environmental protection.Localized production of single-row tube offers fundamental conditions for implement of technology of NDACC.The characteristic and suitable condition of natural draft,the economical and technical comparison of 600 MW unit ACC system was introduced in this paper.The piping layout and antifreezing measures of the air cooling condenser dissipation piping bundles,and the air cooling tower layout were described in detail.更多还原