630MW超临界机组给水系统FAC的控制与研究  

Control and Research on FAC in 630MW Supercritical Unit Water Supply System

作　　者：刘绍强[1] 叶如祥[1] 

机构地区：[1]淮浙煤电有限责任公司凤台发电分公司,安徽淮南232131

出　　处：《安徽电力》2011年第1期33-36,共4页Anhui Electric Power

摘　　要：超临界机组给水系统一般都存在较严重的流动加速腐蚀(FAC)现象,并伴随锅炉管道、汽轮机叶片及相关疏水阀门结垢问题。通过对2台630 MW超临界机组给水系统FAC机理及影响因素的分析与研究,并结合现场试验,优化了机组给水精处理、除氧器等系统的化学运行工况,使机组水汽系统铁含量明显降低,表明机组给水系统的FAC得到了较好控制,为超临界机组水汽系统化学腐蚀的控制提供了新思路、新方法。Water supply system in supercritical unit commonly exist severe water flow accelerated corrosion phenomena,and the FAC with boiler steam turbine blades and related pipe,valve fouling trap.Based on the FAC mechanism and analysis and research of influencing factors,and combining with the experiment,the optimization of fine processing,the deaerator＇s operating system such as chemistry,water content of iron unit system,water supply system significantly reduced,the FAC get better control for water supply system,and provides new ideas and new methods for chemistry corrosion control in water vapor system of supercritical units.

关 键 词：超临界 机组 给水系统 流动加速腐蚀 控制 研究 

分 类 号：TM621.3[电气工程—电力系统及自动化]