精确计算汽轮机运行主蒸汽流量的一种可行方法

A Practicable Method for Main Steam Flow Calculation of Steam Turbines

大功率汽轮机的运行主蒸汽流量都不能直接测定,但它却是设备工作状态最重要的监视参量之一,因此应精确确定。基于汽轮机工作原理和大量的试验,提出一种特定机组专用的主蒸汽流量计算公式,先利用汽轮机再热蒸汽入口压力和温度测量值求得再热蒸汽流量,然后再用一组相关的参数测量值通过计算准确地求得主蒸汽流量。

As we know,main steam flow of large capacity steam turbines is one of the most important parameters for working condition supervision.However the steam flow can not be measured directly,therefore it is necessary to find a practical calculation way.Based on working principles and experimental results of steam turbines,a formula especially for the calculation of main steam flow is being proposed.The specific way is to calculate the steam flow at reheater outlet with reheated steam pressure and temperature dat...