摘要
介绍了我国投运的首台采用再热蒸汽短路调温技术的745t/h循环流化床锅炉的设计与运行情况,并探讨了锅炉运行条件对减排NOx和SO2的影响.由性能测试结果可知,过热器、再热器、旋风分离器和空气预热器设计合理;再热蒸汽短路调温技术能够满足再热器调温要求;在机组带220MW电负荷稳定运行时,锅炉热效率平均试验值和平均修正值分别为90.72%和90.56%;锅炉完全具备最大连续出力745t/h和最低不投油稳燃出力连续运行的能力;锅炉合理运行时可以有效降低NOx和SO2的排放.
An introduction is being presented to the design and operation of the first domestic 745 t/h CFB boiler with bypass temperature controlling system for the reheat steam, while influence of the operating condition on NO. and SO2 emission discussed. Performance test results show that the superheater, rehea- ter, cyclone separator and air preheater are all rationally designed; the parameters of reheat steam could he quickly and accurately adjusted by the bypass temperature controlling system; under operating conditions at a load of 220 MW, the average test value of boiler thermal efficiency and the average corrected efficiency are respectively 90. 72% and 90. 56% ; the boiler could be stably and continuously operated at the maximum output of 745 t/h and at the lowest output without auxiliary fuel; the purposes of low NOx and SO2 emission could be achieved if the boiler is rationally operated.
出处
《动力工程学报》
CAS
CSCD
北大核心
2012年第6期425-429,共5页
Journal of Chinese Society of Power Engineering
关键词
循环流化床锅炉
再热蒸汽
短路调温技术
设计
运行
CFB reheat steam bypass temperature controlling technology design operation
