电站锅炉空气预热器改造方案研究

Research on Retrofit Options of Air preheater in Utility Boiler

根据低温腐蚀、漏风等原因造成的回转蓄热式空气预热器运行不良,电站锅炉出力不足等问题,文中通过对提出的几种改造方案的比较,论证了利用螺纹管、热管强化传热技术,采用复合式空气预热器对原有空气预热器进行技术改造的可行性。

On the worse operation of the storage air preheater and insufficient output of utility boiler caused by low temperature dew point corrosion and air leakage etc.,this article, by the technoeconomic comparisions of some retrofit options for the air preheater, verifies its feasibility of mulitiple air preheater by using heat trangfer enhancement technology of spirally corrugated tube and heat pipe.