本文概括地总结100兆瓦机组改型后八年运行实践的安全性及热经济性。扼要地介绍采用导汽管抽汽方法及试验考核的数据,分析了机组实际达到以及能达到的热经济水平,在保持原通流结构,调峰能力及铭牌出力时,可望达到的节能效益。结果表明,节能效果显著,本机组改型的经验对研制适合我国国情的采暖机型,有参考价值。 This article summarizes the safety and thermal economy of a 100 MW unit retrofitted for eight years. The brief introduction of the method of steam extraction with steam pipe and the data of test and assessment are given. The thermal economy actually reached and reached by the unit is analyzed. The expected energy saving benefits while maintaining the original flow structure, peak shaving capacity and nameplate output . The results show that energy-saving effect is remarkable. The experience of retrofitting of the unit has reference value for the development of heating models suitable for China’s national conditions.