2028t/h锅炉减温水循环函数法计算与分析  

CALCULATION AND ANALYSIS OF DESUPERHEATING WATER FOR A 2028 t/h BOILER

作　　者：钱进[1] 王冠伦 周开贵 

机构地区：[1]贵州大学电气工程学院,贵州贵阳550003 [2]大唐发耳发电公司,贵州六盘水553017

出　　处：《热力发电》2009年第3期34-39,共6页Thermal Power Generation

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。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 may reduce the economic efficiency of the unit,the decreasing economic efficiency of the unit; and the rate upon the economic efficiency of unit is greater that the putting desuperheating water into service larger flowrate of desuperheating water, the more influence of reheater^s desuperheating water flow than that of the superheater.

关 键 词：亚临界 600 MW机组 2 028 t/h锅炉 循环函数法 减温水 经济性 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]