摘要：Based on the conventional heat balance method as the foundation, the introduction two kinds of mathematical tools and pro-gramming calculation,At the same time the computer when the condition is changed to steam turbine expansion line correction. And taking the N600-16.7/537/537 unit data specific analysis of splitting heaters and heat economy of unit changes, the results show that using the solution col-umn high as peak-shaving methods should first series of high-pressure heater of three, namely the series of high peak theory is feasible.%本文以常规热平衡法为基础，同时采用计算机对变工况时汽轮机热力膨胀过程线进行修正。并以N600-16.7/537/537机组数据具体分析加热器解列前后机组热经济性的变化，结果表明，采用解列高加作为调峰手段时应首先解列高压加热器，即解列高加调峰理论上很可行。
