小流量给水条件下电站锅炉给水系统调节特性分析
Fluid Machinery(2009)
Abstract
为了适应小流量锅炉给水的调节要求,首先利用"最小二乘法"原理,确定因系统倒灌高度和流动阻力对锅炉给水泵带来影响后的特性方程拟合;依据开、闭式供水系统的特点,求解出给水系统总的特性方程;确定当锅炉给流量小于、等于或超过给水泵最小汽蚀流量时,再循环阀门与给水阀门应具有的开度比;最后通过算例进行系统能耗分析。
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Key words
boiler water supply system,analysis of the power consumption,feedwater pump,characteristic of the pipe line,recirculation regulation
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