四角切圆锅炉低负荷风箱风量分配特性  

Air volume distribution characteristics of low load bellows of tangentially fired boiler

作　　者：王静杰[1,2] 祝令昆 徐彦辉 闫燕飞 韩升利 于景泽[1,2] WANG Jingjie;ZHU Lingkun;XU Yanhui;YAN Yanfei;HAN Shengli;YU Jingze(State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers(Harbin Boiler Company Limited),Harbin 150046,China;Harbin Boiler Company Limited,Harbin 150046,China)

机构地区：[1]高效清洁燃煤电站锅炉国家重点实验室(哈尔滨锅炉厂有限责任公司),黑龙江哈尔滨150046 [2]哈尔滨锅炉厂有限责任公司,黑龙江哈尔滨150046

出　　处：《锅炉制造》2023年第1期4-5,21,共3页Boiler Manufacturing

摘　　要：目前火电市场面临深度灵活性调峰的要求,锅炉普遍要求在30%负荷甚至以下运行。本文针对锅炉30%低负荷情况下的运行边界条件,风箱各层燃烧器喷口的风量进行了模拟。模拟发现,30%低负荷情况下,用于组织流场的二次风远远低于设计值,需要对原有的风箱结构进行优化,以保证炉内合理的动力场。At present,the thermal power market is faced with the requirement of deep flexibility peak regulation,and the boiler is generally required to operate at 30%load or even below.In this paper,the air volume of burner nozzle in each layer of bellows is simulated under the operating boundary conditions of 30%low load boiler.Simulation results show that under the condition of 30%low load,the secondary wind used to organize the flow field is far below the design value,and the original bellows structure needs to be optimized to ensure a reasonable dynamic field in the furnace.

关 键 词：低负荷 数值模拟 风量分配 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程]