350 MW超临界流化床机组深度调峰研究与应用
摘要：目的 为掌握超临界循环流化床机组的深度调峰能力，科学参与辅助服务市场，有必要对存量机组深度调峰性能深入研究。 方法 从安全性、经济性及环保性3个维度分别开展了40%和30%额定负荷连续试运行、锅炉燃烧优化调整、锅炉效率和汽机热耗率性能测试，实施了给水泵单泵运行、压力曲线优化、锅炉氧量、床压调整等10余项优化措施。 结果 实现了连续12天30%额定负荷连续运行，40%和30%额定负荷深度调峰对煤耗的影响分别约为52、72 g/(kW·h)。 结论 350 MW等级超临界循环流化床机组具有良好的深度调峰能力，不需改造30%额定负荷工况，不需投油稳燃且锅炉保持较高效率，汽轮发电机组本体、热力系统、辅机设备等监视参数正常，主要烟气污染物实现超低排放。
Abstract:Objectives In order to master the deep peak shaving capability of supercritical circulating fluidized bed units and scientifically participate in the auxiliary service market, it is necessary to conduct in-depth research on the deep peak shaving performance of existing units. Methods From the three dimensions of safety, economy and environmental protection, 40% and 30% of rated load continuous trial operation, boiler combustion optimization adjustment, boiler efficiency and steam turbine heat consumption rate performance tests were carried out, respectively.More than 10 optimization measures such as single pump operation of feed water pump, pressure curve optimization, boiler oxygen amount, bed pressure adjustment, etc., were implemented. Results The continuous operation of 30% rated load for 12 consecutive days was realized, 40% and 30% rated load depth peak-monasizing the peaks affected coal consumption by about 52%, 72 g/(kW·h), respectively. Conclusions The 350 MW supercritical circulating fluidized bed unit has good deep peak shaving ability. There is no need to transform 30% rated load conditions, and inject oil to stabilize combustion and maintain high efficiency of the boiler. Monitoring parameters for the steam turbine generator unit body, thermal system and auxiliary equipment are normal. The main flue gas pollutants are ultra-low emission.
标题：350 MW超临界流化床机组深度调峰研究与应用
title:Research and Application of Deep Peak Shaving of 350 MW Supercritical Fluidized Bed Unit
作者：代华松, 浦绍旭, 柴国旭, 金李, 陈为平, 解明亮
authors:Huasong DAI, Shaoxu PU, Guoxu CHAI, Li JIN, Weiping CHEN, Mingliang XIE
关键词：循环流化床,深度调峰,运行优化,灵活性改造,安全性,经济性,
keywords:circulating fluidized bed,deep peak shaving,operation optimization,flexibility retrofit,safety,economy,
发表日期：2024-06-30
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