QIAN Jin1, WANG Guan-lun2, ZHOU Kai-gui21.College of Electrical Engineering. CALCULATION AND ANALYSIS OF DESUPERHEATING WATER FOR A 2028 t/h BOILER[J]. Thermal power generation, 2009, 38(3): 34-39.
QIAN Jin1, WANG Guan-lun2, ZHOU Kai-gui21.College of Electrical Engineering. CALCULATION AND ANALYSIS OF DESUPERHEATING WATER FOR A 2028 t/h BOILER[J]. Thermal power generation, 2009, 38(3): 34-39. DOI: 10.19666/j.rlfd.2009.03.008.
2028t/h锅炉减温水循环函数法计算与分析
摘要
以SG2028/17.5型锅炉为对象
采用循环函数法
就汽温调节减温水的来源和水量对汽轮机组经济性的影响进行了定量计算和分析
绘制出了特性曲线图。计算分析表明
投入减温水会降低机组经济性
减温水流量越大
机组经济性下降越大;同样负荷及减温水流量
再热器减温对机组经济性的影响大于过热器。
Abstract
Taking the SG 2028/17.5 type boiler as an object
the influence of water source and water quanlity used as desuperheating water for adjusting steam temperature upon the economic efficiency of the steam turbine unit has been quantitatively calculated and analysed
and characteristic curves being drawn up.Results of calculation and analysis show that the putting desuperheating water into service may reduce the economic efficiency of the unit
the larger flowrate of desuperheating water
the more decreasing economic efficiency of the unit;and the influence of reheater's desuperheating water flow rate upon the economic efficiency of unit is greater than that of the superheater.