大容量电站锅炉系统可用性的设计方法

Availability Design Method of Large Capacity Utility Boiler Systems

提出了大容量电站锅炉系统可用性的设计方法,包括评价电站锅炉可用性的特征量、零部件及子系统的可用度计算模型以及锅炉系统可用系数的计算模型.应用该设计方法,对某型号超临界600 MW锅炉子系统的可用度及锅炉系统的可用系数进行了预测.结果表明:该设计方法可在设计阶段定量地确定电站锅炉的零部件、子系统和系统的可用性特征量,为大容量电站锅炉可用性的设计、分析和改进提供了科学依据.

The availability design method of large capacity utility boiler systems was presented including the characteristic parameters for assessing availability of the utility boilers, availability calculation models of parts, components and subsystems as well as calculation model for available factor of boiler system. The design method was adopted to predict the availability of boiler subsystems and available factor of the boiler system of a supercritical 600 MW unit. Results show that with the availability design method, the availability characteristic parameters of the parts, components, subsystems and system of the utility boiler can be determined quantitatively in the design stage. The method provides a scientific basis for the availability design, analysis and improvement of the large capacity utility boiler.