某超超临界机组热控仪表导管及阀门的设计探讨

Design Features of I&C Instrument Pipe and Valve for Ultra-Supercritical Unit

超超临界机组的高参数对热工仪表导管及阀门提出了更高的要求,目前国内电力行业标准中没有超超临界机组热工测点的安装附件及材料选用、安装方式等相关规定,使得热工仪表导管及阀门的选用存在一定的困难。文章结合湖北华电江陵发电厂一期2X660MW超超临界高温高压参数机组的热工仪表导管阀门选型,对超超临界高温高压参数机组的仪表导管阀门的选型进行探讨,以期对超超临界机组的仪表导管阀门选型提供参考。

Uhra-supercritical units of the high parameters of the thermal instrumentation pipes and valves put forward higher requirements, the current domestic power industry standards are not involved in uhra-supercritical thermal unit set the test site, the installation of accessories and materials selection, installation and other related Regulations, making the choice of thermal instrumentation catheter and valve there are some difficulties~ In this paper, we discuss the specifications of the valves for thermal instrumentation the 2X660MW uhra-supercritical coal-fired units of Huadian Jiangling Power Plant in Hubei Province~ It is hoped that this paper can provide references for the design and selection of thermo-measuring instrument conduit valves for uhra-supercritical units.