通过对沸腾锅炉运行中存在的热效率低的原因分析 ,提出了用炉内空间燃烧技术把沸腾炉改造成循环流化床锅炉的措施。运行结果表明 ,改造后的锅炉达到了预期效果 Based on the analysis of the reasons of the low thermal efficiency in the operation of boiled boilers, the measures to transform the boilers into circulating fluidized bed boilers by space combustion technology in the furnace are proposed. The operation results show that the boiler after the transformation has achieved the expected result