超临界600MW四角切圆锅炉燃烧优化试验研究  

Experimental Study on Combustion Optimization of Supercritical 600 MW Quadrangle Tangential Boiler

作　　者：王克 Wang Ke(Special Equipment Supervision and Inspection of Shanghai Institute of Technology,Shanghai 200062)

机构地区：[1]上海市特种设备监督检验技术研究院,上海200062

出　　处：《中国特种设备安全》2023年第3期20-24,54,共6页China Special Equipment Safety

摘　　要：针对超临界600 MW锅炉运行中存在的螺旋管水冷壁出口、过热器、再热器壁面易超温以及高负荷下过热器和再热器减温水量过大,低负荷减温水量小难以满足冷再端供热需要等问题,对锅炉进行燃烧优化调整。通过对锅炉的煤粉细度、配风特性、燃烧器摆角、炉膛出口氧量水平等进行优化,过热器等受热面的超温问题得到解决,不同负荷下再热器减温水量满足供热需要,同时锅炉效率也有所提高,有效地提高了机组的安全性和经济性。In view of the problems existing in the operation of supercritical 600 MW boiler,such as spiral pipe water cooling wall outlet,superheater and reheater wall surface is easy to overtemperature,the cooling water amount of superheater and reheater under high load is too large and cooling water amount under low load is too small to meet the need of cold reheater heating,the boiler combustion optimization and adjustment are carried out.By optimizing the boiler pulverized coal fineness,air distribution characteristics,swinging angle of burner and furnace outlet oxygen level,superheater heating surface overtemperature problems are solved,the reheater desuperheating water flow under different load can meet the needs of heat supply,at the same time it also improves the boiler efficiency,effectively improves the safety and economy of the unit.

关 键 词：壁温超温 减温水 锅炉 燃烧优化 

分 类 号：X933.2[环境科学与工程—安全科学]