WANG Xiao-lu, GUO Shu-qing, DONG Xian-yuanZhongyuan Industrial College. TEST AND ANALYSIS ABOUT INFLUENCE OF FOULING UPON OPERATION OF 350 MW UNIT[J]. Thermal power generation, 2008, (4): 76-78.
DOI:
WANG Xiao-lu, GUO Shu-qing, DONG Xian-yuanZhongyuan Industrial College. TEST AND ANALYSIS ABOUT INFLUENCE OF FOULING UPON OPERATION OF 350 MW UNIT[J]. Thermal power generation, 2008, (4): 76-78. DOI: 10.19666/j.rlfd.2008.04.023.
TEST AND ANALYSIS ABOUT INFLUENCE OF FOULING UPON OPERATION OF 350 MW UNIT
摘要
以某电厂350MW机组为例
分析污垢对锅炉和凝汽器运行的影响。实际分析结果显示
污垢的存在使锅炉排烟温度升高约15℃
热效率下降0.8%左右
并使凝汽器端差升高2℃以上;凝汽器胶球清洗间隔内汽轮机功率变化量为2694.708kW。实践表明
锅炉和凝汽器采用吹灰器和胶球清洗装置很有必要
但吹灰费用较高
仅1台350MW机组就需129.5万元/年。
Abstract
Tanking 350 MW unit in one power plant as example
the infuence of fouling upon operation of boiler and condenser has been analysed.Results show that the exsistence of fouling makes the temperature of flue gas exhausted from boiler to be increased about 15℃
the thermal efficiency to be declined about 0.8%
and the terminal temperature difference of condenser to be increased by 2℃.During period of rubber ball cleaning for the condenser
the variation range of turbine's capacity is 2697.708 kW.Practice shows that the use of soot-blower and rubber-ball cleaning in the power plant is very necessary
but the cost of soot-blowing is comparatively high
needing 1.295 million yuan for per year only for one 350 MW unit.