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首页> 外文会议>Energy and Environment Technology, 2009. ICEET '09 >Simulation System on the Thermal Stress and Fatigue Life Loss of Startup and Shutdown for a Domestic 600MW Steam Turbo Generator Unit
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Simulation System on the Thermal Stress and Fatigue Life Loss of Startup and Shutdown for a Domestic 600MW Steam Turbo Generator Unit

机译：国产600MW汽轮发电机组启停热应力与疲劳寿命损失仿真系统。

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摘要

The Simulation System on the thermal stresses and fatigue life loss of the rotator during startup and shutdown for a domestic 600MW steam turbo generator unit, By means of the analysis of Simulation System on the thermal stress and life loss of the rotor, and we could know that the surface of the shaft was suffered a crushing stress, but it was a pulling stress when a unit shut down. The max thermal stress and the max combined stress produced on the rotor of the medium pressure cylinder was about 18% bigger than those on the rotor of the high pressure cylinder when they had the same increase rate of temperature. When thought from economics and safety, the optimal temperature-increasing-rate of the rotor is 1.8¿ per minute when the generator start-up at cool state, and the optimal temperature-increasing-rate of the rotor is 2.0¿ per minute when the generator start-up at hot state. When shut down the unit, itȁ9;s optimal for slipping-parameter, and the optimal temperature-decreasing-rate of the rotor is0.8¿ per minute.
机译：国产600MW汽轮发电机组启停过程中转子热应力和疲劳寿命损失的仿真系统，通过对转子热应力和寿命损失的仿真系统的分析，可以得出如下结论：轴的表面遭受压碎应力，但是当设备关闭时却是拉应力。当温度升高速率相同时，中压缸转子上产生的最大热应力和最大组合应力比高压缸转子上产生的最大热应力和最大组合应力大约18％。从经济和安全角度考虑，当发电机在冷态启动时，转子的最佳升温速度为每分钟1.8度，而转子的最佳升温速度为每分钟2.0度。当发电机以热态启动时。关闭设备时，滑移参数的最佳值是9，转子的最佳降温速率是每分钟0.8°。

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