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最近安装在贵州省铜仁市的25t/h双循环流化床锅炉系由华中理工大学研制。该炉采用自然循环双汽包(?)型布置,燃用0～8mm宽筛分燃料,床内布置适量的埋管受热面,形成了大小粒子流化床叠加燃烧的典型的带床内埋管的循环流化床锅炉。飞灰分离采用炉内惯性分离与炉外旋风分离的两级分离,分离效率高,阻力较低。飞灰回送采用流化密封送灰器,调节灵活,运行稳定。惯性分离与旋风分离相结合,形成炉内与炉外物料两级循环,可确保锅炉运行达到设计参数。 锅炉设计参数为: 额定蒸发量:25t/h 额定蒸汽压力:1.25MPa 额定蒸汽温度:194℃ 给水温度:104℃ 排烟温度:160℃ 锅炉热效率:85％。
Recently installed in Tongren City, Guizhou Province, 25t / h double circulating fluidized bed boiler developed by the Huazhong University of Science and Technology. The natural circulation boiler (?) Type layout of the furnace, burning 0 ~ 8mm wide sieve fuel, the bed layout of the heating pipe surface heating pipe, the formation of the size of the particle fluidized bed stacked with the typical burial buried bed Tube circulating fluidized bed boiler. The separation of fly ash adopts the two-stage separation of inertial separation in the furnace and cyclone separation outside the furnace, and the separation efficiency is high and the resistance is low. Fly ash back to the use of fluidized sealed ash delivery, flexible regulation, stable operation. Inertial separation and cyclone separation combine to form a two-stage furnace and furnace materials cycle, to ensure that the boiler operation to achieve the design parameters. Boiler design parameters: Rated evaporation: 25t / h Rated steam pressure: 1.25MPa Rated steam temperature: 194 ℃ Feed water temperature: 104 ℃ Exhaust temperature: 160 ℃ Boiler thermal efficiency: 85%.