本文介绍了双床并联运行工业沸腾炉的结构原则,根据热平衡对比试验表明:这种沸腾炉在燃用劣质燃料时和单床沸腾炉相比,可以提高热效率16.6％.对燃用宽筛分劣质煤和燃用窄筛分的飞灰的沸腾床的燃烧过程动力特性作了试验测定,并对其结果进行了分析.从而提出在设计和运行上应该注意的问题和双床沸腾炉能够提高热效率的原因. In this paper, the principle of twin-bed operation in industrial boilers is introduced. According to the comparison of heat balance tests, this boil-up furnace can improve the thermal efficiency by 16.6% compared with single-bed boilers when using low- The kinetic characteristics of the combustion process of the combustion of the ebullated bed with narrow sifter fly ash were tested and the results were analyzed, and the problems that should be paid attention to in the design and operation and the reason why the twin bed boiler can improve the thermal efficiency were put forward.