多炉一塔脱硫工艺取消增压风机的可行性研究  

A feasibility study on the cancelation of booster fan in the FGD process of multi-furnaces with one tower

作　　者：张彦锋[1,2] 马永亮[1] 项光明 

机构地区：[1]清华大学环境科学与工程系,北京100084 [2]同方环境股份有限公司,北京100083

出　　处：《电力科技与环保》2011年第1期31-34,共4页Electric Power Technology and Environmental Protection

基　　金：国家高技术研究发展计划重点项目(2007AA061703)

摘　　要：多炉一塔脱硫工艺中通常设置增压风机,但在工程实践中增压风机存在着喘振、失速、高能耗等诸多运行问题。以某自备电厂3台220t/h燃煤锅炉烟气脱硫工程为例,针对多炉一塔湿法脱硫工艺是否设置增压风机,从性能、能耗、运行维护成本等方面对设计方案进行了经济技术比较,并利用流场模拟对烟气系统进行了优化,最终通过引风机的改造替代了增压风机的设置,为小型燃煤电厂湿法脱硫工艺的系统设计提供参考。The booster fan has commonly been used in the wet flue gas desulfurization （FGD） process of multi - furnaces with one tower. However, it could cause many operational problems such as surge, stall and high energy consumption. Based on the design of FGD for three coal - fired boilers （220 t/h） in a thermal power plant, three options of the booster fan application scheme were evaluated, in terms of the performance, the energy consumption ,and the cost of operation and maintenance. It was shown that the booster fan can be replaced by modifying the induced fan,after optimizing the gas system with CFD simulation. These results can be applied to the design of the FGD used for small and medium coal - fired power plants.

关 键 词：脱硫 多炉一塔 增压风机 经济性 技术分析 

分 类 号：X701.3[环境科学与工程—环境工程]