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330 MW火电机组凝汽器水侧流场模拟及优化 被引量:2

Simulation and optimization of water-side flow field in condenser of 330 MW thermal power unit
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摘要 某330 MW火电机组2台机组的凝汽器管束布置结构不同,对凝汽器水侧进行流场模拟。结果表明:4号机组的管束布置方式使得管束入口流场更均匀,实际使用中也发现其胶球系统收球率更好;通过给3号机凝汽器入口水室增加导流板,大幅度提高了3号机凝汽器管束入口截面流体分布均匀程度,降低堵球概率,为仿生双连树型凝汽器改进提供了一定参考。 The two units of a 330 MW thermal power unit have different condenser tube bundles arrangements, and the flow field simulation on the water side of the condenser is carried out. The results show that the tube bundle arrangement of No.4 unit makes the flow field at the inlet of the tube bundle more uniform. It is also found that the ball collection rate of its rubber ball system is better. By adding a deflector to the inlet water chamber of the condenser of the No.3 unit, the uniformity of the fluid distribution in the inlet section of the condenser tube bundle of the No.3 unit is greatly improved,and the probability of ball blocking is reduced. It provides a certain reference for the improvement of the bionic doubleconnected tree condenser.
作者 文珏 WEN Jue
出处 《节能》 2022年第8期11-13,共3页 Energy Conservation
关键词 凝汽器 数值模拟 传热性能 管束 condenser numerical simulation heat transfer performance tube bundle
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