锅炉技术2026，Vol.57Issue(3)：42-47,6.
循环流化床锅炉深度调峰过程能效评价方法研究
Research on Energy Efficiency Evaluation Method for Deep Peak Regulation Process of Circulating Fluidized Bed Boiler
摘要
Abstract
There are significant differences in boiler efficiency values among different units,and the variation tendency with load during peak regulation also varies among units.Energy efficiency evaluation of peak regulation process is a prerequisite for unit benchmarking and operation optimization.The energy efficiency characteristics of boilers during variable load processes were analyzed.Generally,as the unit load decreases,the boiler efficiency shows a downward trend.When the unit load is below 50％of the rated load,the downward trend of boiler efficiency becomes more pronounced.But under low load conditions,boiler efficiency can also be significantly improved through retrofitting and operational optimization.Based on the quasi-steady-state concept,a weighted average energy efficiency calculation method ac-cording to load rate and operating duration was proposed.Firstly,performance tests should be conducted under no fewer than 4 operating conditions at 30％,50％,75％,and 100％load to obtain efficiency curves.Secondly,the load variation curve during peak regulation process should be segmented as finely as possible,and the boiler efficiency corresponding to each load interval can be directly obtained from thermal performance tests or determined through fitted efficiency curves.Finally,based on the load rate and the proportion of operating duration,the weighted average steady-state boiler efficiency can be calculated,and efficiency correc-tions related to dynamic load changes can also be further introduced.If the efficiency changes significantly with load,using this method can easily achieve accurate evaluation of energy ef-ficiency in deep peak regulation processes,providing a reference for operation optimization of boilers duringdeep peak regulation.关键词
循环流化床锅炉/深度调峰/变负荷/能效/准稳态Key words
circulating fluidized bed boiler/deep peak regulation/variable load/energy efficiency/quasi-steady-state分类
能源科技引用本文复制引用
刘雪敏,赵亚洁,唐秀能,李建锋,王振川,柯希玮,何建乐..循环流化床锅炉深度调峰过程能效评价方法研究[J].锅炉技术,2026,57(3):42-47,6.基金项目
国家重点研发计划项目(2022YFB4100305) （2022YFB4100305）
