基于设计的循环流化床床内磨损特性研究  

Research on Wear Characteristics in Circulating Fluidized Bed Based on Design

作　　者：崔续桐 朱健 赵博 王林 CUI Xutong;ZHU Jian;ZHAO Bo;WANG Lin(School of Mechanical and Power Engineering,Shenyang University of Chemical Technology,Shenyang Liaoning 110142,China;Fushun Special Equipment Supervision and Inspection Institute,Fushun Liaoning 113000,China;Dalian Boiler Pressure Vessel Inspection and Testing Institute Co.,Ltd.,Dalian Liaoning 116000,China;Dalian University of Technology,Dalian Liaoning 116033,China)

机构地区：[1]沈阳化工大学机械与动力工程学院,辽宁沈阳110142 [2]抚顺市特种设备监督检验所,辽宁抚顺113000 [3]大连锅炉压力容器检验检测研究院有限公司,辽宁大连116000 [4]大连理工大学,辽宁大连116033

出　　处：《辽宁化工》2025年第1期19-22,共4页Liaoning Chemical Industry

基　　金：辽宁省教育厅基金项目(项目编号:LJKMZ20220771)。

摘　　要：循环流化床是一种洁净煤燃烧技术,对于加快实现“碳达峰、碳中和”目标具有重大的意义。以某锅炉厂设计的450 t·h^(-1)循环流化床锅炉为研究对象,利用颗粒动力学原理在设计条件下分析了炉内气固两相流动的状态,分析了煤料颗粒对水冷壁的碰撞、摩擦等过程对水冷壁侵蚀状况,并对水冷壁面磨损程度、成因等进行了推演。Circulating fluidized bed is a clean coal combustion technology that is of great significance for accelerating the achievement of the goal of "carbon peaking and carbon neutrality".Taking a 450 t·h-1 circulating fluidized bed boiler designed by a boiler plant as the research object,the gas-solid two-phase flow state in the boiler was analyzed under the design conditions by using the particle dynamics principle,and the water-cooled wall erosion caused by the collision and friction of coal particles was analyzed,and the wear degree and causes of the water-cooled wall surface were deduced.

关 键 词：循环流化床 冲蚀磨损 颗粒碰撞 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]