| 国产200MW汽轮机冷态启动的研究 |
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| 引用本文： | 陈锋,王蔼人.国产200MW汽轮机冷态启动的研究[J].重庆大学学报(自然科学版),1991,14(5):69-73. |
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| 作者姓名： | 陈锋 王蔼人 |
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| 作者单位： | 重庆大学热力工程系
(陈锋)，重庆大学热力工程系(王蔼人) |
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| 摘 要： | 用有限元法计算了国产200MW汽轮机高、中压转子的温度场、应力、临界裂纹尺寸、寿命消耗等。分析计算了重庆电厂8次典型的冷态启动以及多条自拟启动曲线,详细讨论了升速过程中的几个主要问题,提出了在转子温度较低阶段还应该用断裂力学法来评价启动过程。
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| 关 键 词： | 汽轮机 冷态启动 温度 应力 转子 |
RESERCH ON THE COLD START OF 200MW CHINESS-BUILT STEAM TURBINES |
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| Chen Feng Wang Airen.RESERCH ON THE COLD START OF 200MW CHINESS-BUILT STEAM TURBINES[J].Journal of Chongqing University(Natural Science Edition),1991,14(5):69-73. |
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| Authors: | Chen Feng Wang Airen |
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| Institution: | Chen Feng Wang Airen |
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| Abstract: | In this paper, the temperature field, stress, critical crack size and expenditure rate of life of HP and IP rotors of 200MW Chinese-built steam turbines in eight typital patterns of cold start of Chongqing Power Plant was calculated by finite element method. Some problems in speed-up process have been discussed, and advanced that it is better to appraise start-up process by Fracture Mechanics Mechod in the period when the temperature of rotor is low. The discussion are useful for the start of steam turbines. |
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| Keywords: | steam turbine rotor cold start temperature stress crack fracture |
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