摘要
某压缩机组出现的用汽量增大,做功效率下降,轮室压力增大,压缩机一段吸入压力升高等,该现象是由于汽轮机叶片出现结垢造成的,汽轮机叶片结垢影响乙烯装置满负荷安全稳定经济的运行。从蒸汽品质的角度分析了导致汽轮机叶片结垢的原因,详细介绍了汽轮机在线清洗的原理、方法、过程及结果,并给出了清洗过程中轮室压力、透平凝液的电导率、Na+浓度、PO43-浓度和SiO2浓度变化趋势。在线清洗成功解决了压缩机组汽轮机叶片结垢问题,最后介绍了对水汽品质管控采取的管控措施。
The scaling of steam turbine blade in compressor unit leads to many problems such as increased steam consumption,reduced work efficiency,increased pressure of wheel chamber and increased suction pressure of the first stage of compressor,and turbine blade scaling affects the safe,stable and economic operation of ethylene plant at full load.The reasons for turbine blade scaling are analyzed from the aspect of steam quality,the theory,method,process and results of online cleaning of steam turbine are introduced in detail,and the trends in wheel chamber pressure,conductivity of turbine condensate and concentrations of Na+,PO 3-4 and SiO 2 during the cleaning are revealed.Online cleaning technology can successfully solve the turbine blade scaling problem in compressor unit.Finally,the measures for controlling the steam quality are introduced.
作者
石胜启
Shi Shengqi(Zhongtian Co-founder of Energy Co.,Ltd.,Ordos,Inner Mongolia,P.C.017000)
出处
《乙烯工业》
CAS
2022年第1期47-49,I0002,共4页
Ethylene Industry
关键词
汽轮机
叶片结垢
轮室压力
在线清洗
蒸汽品质
steam turbine
blade scaling
wheel chamber pressure
online cleaning
steam quality
