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直接空冷凝汽器倾斜逆流管束内气液两相流动分析
引用本文:石磊,石诚,武楠,李少宁.直接空冷凝汽器倾斜逆流管束内气液两相流动分析[J].电站系统工程,2010,26(1).
作者姓名:石磊  石诚  武楠  李少宁
作者单位:1. 北京交通大学土木建筑工程学院
2. 中国电力工程顾问集团公司
3. 中国华电工程(集团)有限公司
摘    要:介绍直接空冷凝汽器的工作原理。直接空冷换热管束内为复杂气液两相流动,分为顺流管束和逆流管束。通过垂直管内的液泛现象的出现,明确了液泛的定义。对直接空冷凝汽器逆流管束内的两相流型、液泛现象和压降进行分析和研究,提出消除液泛的措施。为直接空冷系统的优化设计提供帮助。

关 键 词:空冷凝汽器  顺/逆流管束  两相流  液泛  优化设计

Gas-liquid 2-phase Flow Analysis inside the Inclined Counter-flow Bundles of Direct Air Cooled Condenser
SHI Lei,SHI Cheng,WU Nan,LI Shao-ning.Gas-liquid 2-phase Flow Analysis inside the Inclined Counter-flow Bundles of Direct Air Cooled Condenser[J].Power System Engineering,2010,26(1).
Authors:SHI Lei  SHI Cheng  WU Nan  LI Shao-ning
Abstract:The operational principle of direct air-cooled condenser is introduced. The flow inside direct air-cooled heat exchanger bundles is complicated 2-phase gas-liquid flow. The bundles can be classified as cocurrent flow (kondensator) bundles and countercurrent flow (dephlemator) bundles. Through vertical tubes,the flooding phenomenon was analyzed and precisely defined. The 2-phase flow patterns and pressure drop inside countercurrent flow bundles are analyzed and studied. The measures that avoid flooding in de...
Keywords:air cooled condenser  Kondensator/Dephlemator(K/D)-bundle  two phase flow  flooding  optimal design
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