王旋
WANG Xuan

• 1:亿利洁能科技有限公司

摘要(Abstract)：

为提高煤粉工业锅炉系统运行稳定性,提高能源利用率,对煤粉工业锅炉煤粉储供系统、燃烧系统和热力系统进行技术改造,结合改造前后炉膛出口压力、炉膛温度、排烟温度和蒸汽流量4个参数,从锅炉运行参数和系统出力两方面进行改造前后对比分析。结果表明,在设定运行负荷为额定负荷的80%条件下,改造后,炉膛出口压力控制在-100 Pa左右,最大波幅±30 Pa,温度场稳定在880.7~1007.9℃,飞灰含碳量低于5%,底渣含碳量低于1%,排烟温度控制在130~140℃,满足设计要求。当螺旋给料频率控制在30~42 Hz时,蒸汽流量22~25 t/h,实测热效率89.07%。
In order to improve stability of industrial pulverized coal boiler and energy utilization rate,the operating parameters and system output were compared from the aspects of outlet pressure of furnace,furnace temperature,exhaust gas temperature and steam flow before and after innovation. The results showed that,when the operating load was 80% of the rated load,after transformation,the outlet pressure of furnace could be controlled to-100 Pa,the amplitude ranged rom-30 Pa to 30 Pa,the temperature field stabilize at 880. 7 ℃ to 1007. 9℃,the carbon content of fly ash and bottom ash was below 5% and 1% respectively. Meanwhile,the exhaust gas temperature could be controlled within 130 ℃ to 140 ℃ which met the design requirement. The steam flow ranged from 22 t / h to 25 t / h and the thermal efficiency was 89. 07% when the parameter of screw feeder frequency was controlled from 30 Hz to 40 Hz.

关键词(KeyWords)： 煤粉工业锅炉;技术改造;运行参数;系统出力;节能增效
industrial pulverized coal boiler;technical innovation;operating parameter;system output;energy-saving and efficiency-improving

Abstract:

Keywords:

基金项目(Foundation): 亿利洁能研发基金资助项目(2015YF01)

作者(Author): 王旋
WANG Xuan

DOI: 10.13226/j.issn.1006-6772.2016.01.016

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