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分析了国产单布风板、不带外置换热器的1065 t/h亚临界循环流化床锅炉运行调节特性,以及运行过程中的主要问题,并提出了解决方案。结果表明:锅炉长期运行稳定,低负荷性能好,总体效果令人满意,但锅炉存在高负荷下主汽温度偏低的问题;提出将两片水冷屏改为中温屏式过热器的方案,锅炉运行特性及改进方案为大容量循环流化床锅炉的优化设计与运行提供了参考。
The operating characteristics of the 1065 t / h subcritical circulating fluidized bed boiler with single-board wind board and without external heat exchanger were analyzed, and the main problems during operation were analyzed and the solutions were proposed. The results show that: the long-term operation of the boiler is stable, the performance of low load is good, the overall effect is satisfactory, but the boiler has the problem of the low main steam temperature under high load; the proposal of changing the two water cooled screens into the medium temperature screen superheaters, Operational characteristics and improvement programs provide references for the optimization design and operation of large capacity circulating fluidized bed boilers.