2×1000 MW机组除灰系统节能改造
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摘要
针对华电莱州发电有限公司一期2×1 000 MW超超临界燃煤机组电除尘气力除灰系统存在气化风量不足、耗电多、故障率高、维护费用高等问题,利用节能改造机会,提出了电除尘器灰斗气化风机与锅炉脱硫氧化风机联合的改造措施,并对改造前后的气化风量、故障率、节能量进行了比较。改造后机组运行稳定,提高了气化风量,降低了设备的维护费用,节能降耗效果明显。
There is insufficient gasification air volume,high power consumption,high failure rate and high maintenance cost in the pneumatic ash handling system for ESP of 2 × 1 000 MW ultra-supercritical coal-fired unit in Huadian Laizhou Power Generation Company Limited. Taking advantage of energy-saving retrofit,the combination of the ESP dust collector gasification fan and the boiler desulfurization/oxidation fan isproposed. Comparing the gasification air volume,failure rate and energy saving before and after the transformation,it is found out that the unit runs stably,the gasification air volume is increased,the maintenance cost of the equipment is reduced,and the energy saving effect is obvious after the retrofit.
There is insufficient gasification air volume,high power consumption,high failure rate and high maintenance cost in the pneumatic ash handling system for ESP of 2 × 1 000 MW ultra-supercritical coal-fired unit in Huadian Laizhou Power Generation Company Limited. Taking advantage of energy-saving retrofit,the combination of the ESP dust collector gasification fan and the boiler desulfurization/oxidation fan isproposed. Comparing the gasification air volume,failure rate and energy saving before and after the transformation,it is found out that the unit runs stably,the gasification air volume is increased,the maintenance cost of the equipment is reduced,and the energy saving effect is obvious after the retrofit.
引文
[1]华电莱州发电有限公司一期2×1 000 MW除灰、脱硫、氨区系统运行规程:Q/HD-104.1.1503-2018[S].
[2]孙芸生,钱为群.火电厂气力除灰系统的现状及其发展[J].机械科学与技术,1997(5):65-67.
[3]金维勤.气力除灰实际应用中应关注的事项[J].电力建设,2008,29(9),50-52.
[4]刘维锋,王新.电除尘器节能技术的应用[J].发电设备,2010,24(5):350-352.
[5]许华.大型机组电厂除灰渣系统设计优化和节能降耗[J].电力建设,2007,28(12):82-85.
[2]孙芸生,钱为群.火电厂气力除灰系统的现状及其发展[J].机械科学与技术,1997(5):65-67.
[3]金维勤.气力除灰实际应用中应关注的事项[J].电力建设,2008,29(9),50-52.
[4]刘维锋,王新.电除尘器节能技术的应用[J].发电设备,2010,24(5):350-352.
[5]许华.大型机组电厂除灰渣系统设计优化和节能降耗[J].电力建设,2007,28(12):82-85.