Thermodynamic system drainage recycling mode has a great influence on heat economy of unit.

热力系统疏水回收利用方式对机组的热经济性有很大的影响。

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Evaluating exactly and fast heat economy of unit caused by heater terminal temperature difference is significant meaning for the design, operation and repair of thermodynamic system.

准确而快速地评价各级加热器端差的运行热经济性，对热力系统的设计、运行和检修具有十分重要的意义。

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By heat balance analysis of the whole regenerative system, which is regarded as a closed thermodynamic system, the calculation model on the influence of HPs removal on heat economy of unit is derived.

以汽轮机功率方程和锅炉吸热量方程为基础，并将机组的整个回热系统视为一闭口热力系统，通过对其的热平衡分析，得到了高加切除对机组热经济性影响的计算模型。

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