确定船用蒸汽动力装置辅机余度系数的新方法  

A New Method for Determining the Redundancy Factor of Auxiliary Machines for a Marine Steam Power Plant

作　　者：舒礼伟[1] 金家善[1] 冀光[2] 

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033 [2]哈尔滨汽轮机厂有限责任公司军代表室,黑龙江哈尔滨150046

出　　处：《热能动力工程》2002年第5期514-516,共3页Journal of Engineering for Thermal Energy and Power

摘　　要：以汽轮给水泵为例 ,探讨了确定船用蒸汽动力装置辅机额定性能余度系数的方法 ,该方法综合考虑设备制造时额定性能的离散性、额定性能随使用时间的退化规律和系统对设备要求的离散性等因素 ,利用性能可靠性作为指标 ,使余度系数的确定更加合理 ,可以用于指导船用汽力装置热线图设计 。With a turbine-driven feedwater pump serving as an example discussed is a method for determining the rated performance-based redundancy factor of auxiliaries for a marine steam power plant. The method under discussion takes into account in a comprehensive way several factors. They include: the discrete character of equipment rated performance during its manufacture, the degeneration mechanism of the rated performance with the passage of usage time, the discrete character as demanded of the equipment, etc. With performance-reliability serving as an objective the redundancy factor can be determined in a more rational way. This may provide guidance for the design of the thermodynamic system of a marine steam power plant as well as the type selection of other similar equipment items.

关 键 词：船用蒸汽动力装置 辅机余度系数 性能可靠性 退化 汽轮给水泵 

分 类 号：U664.11[交通运输工程—船舶及航道工程]