摘要:
为了得到不同冷却方式并列运行机组在不同工况点的最佳运行参数, 确定机组的定滑定的运行方式, 计算了机组不同工况点的煤耗, 并利用Matlab拟合了机组的标准煤耗和供电煤耗曲线, 分析了不同冷却方式机组的煤耗特性, 得出了等微增条件下的机组的煤耗特性曲线和微分曲线。结果表明:对于不同冷却方式并列运行机组而言, 微增煤耗率小的湿冷机组先带负荷, 微增煤耗率大的空冷机组后带负荷;且机组在高于80％额定负荷时采用定压运行方式, 在80％~40％额定负荷时采用滑压运行, 在额定负荷时, 为保证锅炉的稳定燃烧, 宜采用定压运行方式。
Abstract:
In order to get the optimal parameters of units which adopted different cooling characteristics in different operating points and determine the operating ways of constant pressure\|sliding pressure\|constant pressure, units coal consumption was calculated and standard coal consumption and coal consumption curve were fitted by using Matlab.Then the units coal consumption curves and the differential curves could be reached under the condition of equal slight addition. The results showed that water\|cooled units, which slight incremental coal consumption rate was low, raised the load firstly, then air\|cooled units, which slight incremental coal consumption rate was high, raised the load lately;the unit adopted operating way of constant pressure when its load was higher than 80% or less than 40% rated load and it adopted operating way of sliding pressure when its load was between 40％ and 80％ rated load.
下载:
