600MW机组省煤器灰中等距离气力输送系统改进措施  

Some improved ways in medium distance pneumatic conveying of ash in coal economizer in 600 MW units

作　　者：金定强[1] 陆小成[1] 袁春林[1] 潘云[1] 沈勇[1] 

机构地区：[1]国电环境保护研究院,江苏南京210031

出　　处：《电力科技与环保》2014年第4期50-52,共3页Electric Power Technology and Environmental Protection

基　　金：中国国电集团科技项目"燃煤电厂灰渣处置及综合利用技术研究"(407001)

摘　　要：某电厂省煤器灰气力输送系统投运初期频繁出现堵管和输灰超时的问题。经过分析及调研后,改用双套管输送,优化输送步序,减少输送耗气量,不仅实现了输送系统平稳顺畅,而且避免了灰管过度磨损的现象。The problem of plug flow and convey time-out often appears in pneumatic conveying of ash in coal e-conomizer in one 2 x 600 MW units during startup time. When replaced with dual-tube-socket,changed con-veying sequence and reduced air capacity,the operation of conveying system is stable.

关 键 词：省煤器飞灰 双套管 输送步序 输送耗气量 磨损 

分 类 号：X701.2[环境科学与工程—环境工程]