经济参数变化对管道保温层经济厚度的影响  

STUDY ON INFLUENCE OF THE ECONOMIC PARAMETER VARIATIONS UPON ECONOMICAL THICKNESS OF THERMAL INSULATION LAYER FOR PIPELINES

作　　者：王凯[1] 孙玉芳[1] 邵杰[1] 刘鲤宾[1] 

机构地区：[1]国核电力规划设计研究院,北京100094

出　　处：《热力发电》2012年第5期47-49,共3页Thermal Power Generation

摘　　要：以某台超超临界1 000MW机组的主蒸汽及主给水管道为例,根据DL/T 5072-2007《火力发电厂保温油漆设计规程》对管道保温层经济厚度随经济参数的变化进行分析。结果表明,热价的取值在15～25元/GJ时,可兼顾热经济性和管道布置;对于保温投资贷款年分摊率,计息年数取5年可减少其对保温经济厚度设计的影响。According to DL/T 5072-2007 Specification for Design of Insulation and Painting in Ther- mal Power Plant, the variations of economical thickness for pipe insulation was analysed ,with the eco- nomic parameter changing, and the main steam and feed -water pipeline of an ultra--supercritical 1000 MW unit was taken as an example. Results show that thermal economy and piping layout can both be considered when the heat price is between ￥15 and ￥25. Impact of the yearly apportion rate S of ther- mal insulation investment loan on the economical thickness of insulation layer design will be reduced if the interest period are selected as 5 years.

关 键 词：超超临界 1000MW机组 蒸汽管道 给水管道 保温 经济参数 经济厚度 

分 类 号：TK284.1[动力工程及工程热物理—动力机械及工程]