热力透平2024，Vol.53Issue(4)：262-265,275,5.DOI:10.13707/j.cnki.31-1922/th.2024.04.008
火电机组凝汽器改造方案性能的数值模拟
Numerical Simulation of Condenser Performance for Retrofit Scheme in a Thermal Power Generation Unit
胡刚 1张焱儒 2汪瑞平 1林明星2
作者信息
- 1. 陕西能源麟北发电有限公司,陕西 721599
- 2. 上海汽轮机厂有限公司,上海 200240
- 折叠
摘要
Abstract
Condenser is one of the key components in power generation unit,and the layout of the internal condensation tube bundle has a significant impact on its operation performance.A steady-state single-phase numerical calculation model of the flow and heat transfer on the shell side of the condenser was established.Based on the principles of modification,the tube layout of condenser was redesigned,and numerical simulations were conducted to compare the thermal performance of condenser in a thermal power plant before and after the modification.The numerical results indicated that the overall flow on the shell side of the modified condenser exhibited a centripetal distribution,and there were no significant vortices or air accumulation in the tube bundle area.Thus,it was verified that the modification measures could effectively enhance the flow characteristics on the shell side of the condenser,improve the overall heat transfer performance and reduce the back pressure.Meanwhile,the principles of modification were validated.The research findings can provide reference for design or retrofit of tube layout schemes of condensers in thermal power plants.关键词
凝汽器/管束布置/改造/性能/数值模拟Key words
condenser/tube layout/modification/performance/numerical simulation分类
能源科技引用本文复制引用
胡刚,张焱儒,汪瑞平,林明星..火电机组凝汽器改造方案性能的数值模拟[J].热力透平,2024,53(4):262-265,275,5.
