改造型干式排渣系统对锅炉运行特性的影响  

Impact of Revised Dry Bottom Ash Handling System on Boiler Operating Characteristic

作　　者：董信光 何国亮 高长安[3] 李峰[3] 

机构地区：[1]山东电力科学研究院 [2]华能沾化发电有限公司 [3]华电国际十里泉发电厂

出　　处：《电站系统工程》2013年第1期27-29,共3页Power System Engineering

摘　　要：随着节水意识的增强,而干式排渣方式又有着结构简单、节水、干渣经济价值高等优点,因而不少火力发电厂将锅炉的水力除渣改为干式除渣方式.改造后由于锅炉的运行特性会发生变化,从而出现了排烟温度升高、软渣难破碎等问题,针对这些问题,在现场试验的基础上对改造后的干式排渣运行特性进行全面分析,找出对锅炉经济性影响的因素进行优化,得出合理运行方式。Water conservation being paid more attention and comparing to the discharging slag by water,the dry bottom ash handling system has many advantages such as simple structure,water conserving,dry slag using wider.So more and more wet bottom ash handling system was changed into dry bottom ash handling mode.When the bottom ash system has been changed from wet mode to dry mode,the operating characteristics of boiler will be varied,so exit gas temperature increases,soft slag is difficult to be crushed etc.these trouble have been analyzed in detailed based on the field test,factors influencing boiler economic are optimized,the best operating mode has been found finally.

关 键 词：电站锅炉 水力除渣 干式排渣 运行经济性 优化 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]