摘要
对多炉一塔湿式烟气脱硫系统改造过程中的原砖烟道和干烟囱腐蚀、原砖烟道结构强度受影响、侧进式搅拌器设备昂贵、脱硫剂制备系统易堵塞、真空皮带机需高位布置等问题提出相应的设计优化,如引风机改造增压、吸收塔塔顶架设湿烟囱、吸收塔与循环氧化池分置、粉仓卸料口与浆液箱进料口错开布置、采用真空平衡间歇式自排液器进行气液分离等。实际应用表明,优化设计后的系统具有投资省、维护量少、系统可靠、运行稳定等优点,适用于老锅炉的脱硫改造。
According to such problems as corrosion in brick flue duct and dry chimney,the structural strength of original brick flue duct be affected,expensive side-entering agitators,easy blocking of the desulfurizer preparing system and the high-level arrangement of vacuum belt dewatering machines that occurred during the FGD system transformation,the corresponding design optimization were proposed.For example,boosting modification of the induced draft fan,setting wet stack on top of the absorber,separating the absorber and the cyclic oxidation pool,cross-setting the discharge ports of bunker and that of slurry tanks,and conducting liquid-vapor separation with vacuum balance self-draining device.Application results showed that,the optimized system had such advantages as low investment,little maintenance,high reliability and stable operation,so it was suitable for desulfurization transformation for medium-sized power plant.
出处
《热力发电》
CAS
北大核心
2013年第2期45-48,共4页
Thermal Power Generation
关键词
多炉一塔
湿式烟气脱硫
设计优化
增压风机
烟道腐蚀
粉仓堵塞
循环浆液池
multiple boilers with one absorber
wet-FGD
design optimization
booster fan
flue duct corrosion
bunker blockage
circulating oxidation pool
