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首页> 外文期刊>Thermal engineering >Development of a Procedure for Substantiating Replacement Terms for the Condenser Tubes of Steam Turbine Installations
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Development of a Procedure for Substantiating Replacement Terms for the Condenser Tubes of Steam Turbine Installations

机译：制定证实汽轮机设备冷凝管替换条款的程序

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摘要

Results obtained from elaboration of a procedure for estimating replacement terms for the condenser tube systems of steam turbine installations are presented. Censored data processing methods are used in performing statistical assessment of replacement terms. The service life of condenser tubes blanked off in the course of turbine operation is assumed to be known (complete operation time), and that for tubes blanked off during the turbine repair process is assumed to be undetermined (censored operation time). The criterion for estimating the replacement term for a condenser tube system is defined as the ratio between the number of tubes blanked off during a repair and in the course of turbine operation. The procedure is validated by the results from a study on analyzing the damageability of tubes made of different materials for the condensers of 11 turbines with capacities ranging from 25 to 500 MW.
机译：给出了详细阐述估算汽轮机设备冷凝器管道系统更换条件的程序所获得的结果。经审查的数据处理方法用于执行替换条款的统计评估。假定已知在涡轮机运行过程中被消隐的冷凝器管的使用寿命（完整的运行时间），而对于在涡轮机维修过程中被消隐的冷凝器管的使用寿命，则未确定（检查的运行时间）。估计冷凝器管系统的替换项的标准被定义为在维修过程中以及在涡轮机运行过程中被消隐的管子数量之比。通过分析不同材料制成的管对11台涡轮机的冷凝器（容量从25到500 MW）的损坏性研究的结果，验证了该程序的有效性。

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