蒸汽流量测量中的温度压力补偿  

Temperature and Pressure Compensation in Steam Flow Measuremen

作　　者：李健生[1] 王滨[1] 

机构地区：[1]杭州汽轮机股份有限公司,杭州310022

出　　处：《发电设备》2012年第5期313-316,共4页Power Equipment

摘　　要：介绍了利用孔板进行蒸汽流量测量的基本原理,以及在测量中对蒸汽温度、压力进行补偿的必要性,提出工业汽轮机装置中最常用的过热蒸汽流量测量的多种不同补偿计算方法,并通过实例计算评估不同补偿方法对流量测量偏差的影响;根据具体工程蒸汽流量测量的精度要求及系统所具备的软件模块功能,可选择一种合适方法进行流量测量的温度、压力补偿。An introduction is being presented to the basic principles of steam flow measurement using orifice plate, as well as the necessity of steam temperature and pressure compensation in the measurement. Various compensation calculation methods for superheated steam flow measurement, commonly used in industrial turbine unit, are proposed, of which their influences on flow measurement errors are evaluated with actual examples. One of the methods may be chosen for calculation of temperature and pressure compensation according to specific precision requirements and software module function of the system in actual steam flow measurements.

关 键 词：蒸汽流量 测量 温度和压力补偿 

分 类 号：TK313[动力工程及工程热物理—热能工程]