600MW机组240m烟囱钢内筒液压提升倒装法施工  

Construction Technique of Inverted Installing with Hydraulic Hauling-up Method for Steel Inner Canister of 240 m Multi-stack Chimney

作　　者：吴留恩 邵勤[2] 

机构地区：[1]江苏电建三公司,江苏镇江212003 [2]江苏省电力公司,江苏南京210024

出　　处：《江苏电机工程》2006年第3期18-20,共3页Jiangsu Electrical Engineering

摘　　要：结合江苏镇江电厂三期工程建设,介绍了2台600 MW超临界燃煤发电机组2炉共用1座240/16.4 m烟囱的施工技术。阐述了该烟囱采用液压提升倒装法施工的基本原理与系统组成,对提升器布置方案、钢内筒第1吊点和第2吊点的相对位置与二次转换、拖梁和环梁方案等进行了分析比较及论证。运用大型通用有限元软件(ANSYS)辅助设计与分析,从根本上消除了内筒安装过程中突出的扭晃问题。经过钢绞线束锚固性能检验、液压提升装置试验、施工过程监测等试验与监测,确认液压提升倒装法适用于各种形式的钢内筒。The steel inner canister of the 240 m multi-stack chimney in Zhenjiang power plant is installed in a inverted way with hydraulic hauling-up method, and it is designed and analyzed with the finite element analysis. The system is composed of hauling-up machine, the supporting system of the hauling-up machine, the installing nod of the steel inner canister,the steel strand and the steel strands-anchorage assembly. The hauling-up machines are located at the height of 226 m,four groups ofGYT-200 （ II ） hydraulic hauling-up system are used and located at four oblique beams directly. There are two layers of installing nod for each steel inner canister. The inverted installing with hydraulic hauling-up method can be widely used for a variety of steel inner canisters, and it has a broad prospect in promoting its application. It is a great technology development and techniques innovation compared with the hydraulic or air pressure hanling-up method.

关 键 词：锅炉 多管式烟囱 钢内筒 液压提升倒装法 钢绞线锚固体系 

分 类 号：TU271.1[建筑科学—建筑设计及理论]