水流温度不均匀对超临界压力蒸发管水动力特性的影响  

Influence of Temperature Nonuniformity of Water Flow on Dynamic Characteristics of Water in Supercritical Pressure Evaporator Tubes

作　　者：周云龙[1] 李岩[1] 关月波[1] 洪文鹏[1] 

机构地区：[1]东北电力学院动力工程系,吉林长春132012

出　　处：《锅炉技术》2000年第4期16-18,22,共4页Boiler Technology

摘　　要：对超临界压力锅炉蒸发管的水动力特性进行了理论分析，通过对不同配置方式管组的水动力特性进行计算，指出在超临界压力下的大比热区（i＝1700－2500kJ／kg）必须考虑水流的温度不均匀性对超临界压力锅炉水动力特性的影响。The dynamic characteristics of water in supercritical pressure boiler are analyzed theoretically. Through calculation of dynamic characteristics of water for various arrangements of boiler piping,the authors point out that in area of large specific heat (i= 1700 ~ 2500kJ/kg )under supercritical pressure,the influence of temperature nonuniformity of water flow must be taken into consideration.

关 键 词：水动力特性 超临界压力 水流温度 压力锅炉 压力蒸发管 

分 类 号：TK229.1[动力工程及工程热物理—动力机械及工程]