蒸汽发生器汽水分离器负荷不均匀性分析

Flow Mal-distribution Analysis for Primary Separator of Steam Generator

摘要: 应用三维稳态热工水力软件GENEPI，对CPR1000蒸汽发生器管束区及汽水分离器区域进行热工水力分析，得到了管束区和汽水分离器入口的热工水力参数分布。结果表明，汽水分离器区域的负荷不均匀性明显，中间及热侧的汽水分离器承受的负荷较高，分析数据为汽水分离器及干燥器湿度分析提供输入数据和设计依据。对比了不同汽水分离器局部阻力系数下的结果，表明汽水分离器局部阻力系数对其负荷不均匀性有一定的影响，系数越大，流量越均匀。
- 蒸汽发生器 ,
- 汽水分离器 ,
- 负荷不均匀性 ,
- GENEPI
Abstract: The steady thermal-hydraulic analysis for tubebundle region including primary separators of CPR1000 steam generator was done by three-dimensional software GENEPI. The results show the flow mal-distribution of the tube-bundle and primary separator regions, and the primary separators in the central and hot side bear a larger load. The analysis can be used as the input of the moisture analysis of separators and dryers. The calculation results of different local pressure-drop coefficients of the primary separator were also compared. The results show that the larger the coefficient is, the more uniform the flow distribution is.
- steam generator ,
- primary separator ,
- flow mal-distribution ,
- GENEPI

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