凝汽器冷却水流量测量方法分析及其比较  

The Measuring Methods of Steam Turbine Condenser Cooling Flow Rate Their Compare

作　　者：陈晓珊[1] 孟芳群[1] 初立森 张本贤 

机构地区：[1]东北电力学院动力工程系,吉林吉林132012 [2]吉林电力科学研究院,吉林长春130021 [3]大连电力学校,辽宁大连116021

出　　处：《东北电力学院学报》2004年第6期28-30,42,共4页Journal of Northeast China Institute of Electric Power Engineering

摘　　要：通过汽轮机凝汽器冷却水流量的测量 ,分析了采用超声波流量计与凝汽器热平衡方法测量冷却水流量的精确度及均值。指出采用超声波流量计测量冷却水流量的方差值比较小 ,但超声波流量计的投资及测量费用较大。从测量的精确度及测量经济性两方面对两种测量方法进行了讨论 。Through measuring steam turbine condenser cooling flow rate,the precision and mean values measured by ultrasonic flow meter and the method using heat balance are analyzed.The viewpoint is given that the square difference of cooling water flow rate measured by ultrasonic flow meter is smaller but the invest and measuring cost is large.In this paper,the two measuring methods are discussed from the angles of the precision and economy,in choosing the method of measuring cooling water flow rate.

关 键 词：凝汽器 汽轮机 经济性 热平衡 超声波流量计 冷却水流量 均值 方差 精确度 

分 类 号：TM311[电气工程—电机] O642[理学—物理化学]