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Stress Analysis of a 600 MW Supercritical Boiler Start-up Separator in Peak Load Operation

机译:600 MW超临界锅炉启动分离器的应力分析峰值负荷运行

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Taking a start-up separator of 600 MW supercritical boiler as the study object, analyse the stress field of it during the process of load pick-up with the three-dimensional finite element analysis method. In the analytical process, it has calculated the thermal stress, mechanical stress and the total stress of them, and analysed the change rules of them, so it provide the guidance of the production operation processes. The calculation results show that: the thermal stress of open pore on start-up separator exists obvious stress concentration phenomenon; The stress concentration of the total stress occurred in the oval long axis of cylinder body wall, where is the danger point of the start-up separator.
机译:采用600 MW超临界锅炉的启动分离器作为研究对象,在用三维有限元分析方法的负载拾取过程中分析其应力场。在分析过程中,它计算了它们的热应力,机械应力和总应力,并分析了它们的变化规则,因此提供了生产操作过程的指导。计算结果表明:启动分离器上开放孔的热应力存在明显的应力集中现象;总应力的应力浓度发生在圆柱体壁的椭圆长轴线中,其中初始分离器的危险点。

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