电站高温承压部件经济寿命评定的研究

The Economic Life Appraisal of High Temperature Compression Part in Power Station

针对火力发电厂机组设备的超期服役，以高温承压部件蒸汽管道为例，以其运行工况为基础，结合材质状况，逐步实行三级评定，计算高温承压部件的剩余寿命，利用固定资产线性折旧法对设备进行折旧计算，同时建立经济寿命的数字模型，综合评定高温承压部件的经济性，并列举了算例。

For overterm service of unit equipment in thermal plant,taking high temperature compression part(steam pipe)for example,the paper introduced a three grade appraisal method and calculated the residual life of high temperature compression part using fixed asset linear method,establised a economic life mathematical mode,finally gave out a general economy appraisal for high temperature compression part with a calculation example.