概述锅炉给水泵在电厂中所占厂用电比重较大,一般达到2%-3%左右,大型电厂所占比重更大。大型电厂一般为中间再熟机组,汽动给水泵得到了普遍应用;相对于小型热电厂,汽动给水泵应用并不广泛,存在的问题主要有两点:一是背压式汽轮机本身经济性较低,排汽量较大,存 Overview Boiler feed water pump in the power plant share of large proportion of electricity, generally reached about 2% -3%, a larger proportion of large power plants. Large-scale power plants are generally intermediate re-cooked units, steam-driven feed pump has been widely used; compared to small-scale thermal power plants, steam feed water pump is not widely used, there are two main problems: First, the back-pressure turbine itself more economical Low, large amount of exhaust, save