风罩回转式空气预热器的改造

针对风罩回转式预热器漏风大的问题，介绍了荆门热电厂风罩回转式空气预热器改造的探索过程及几种改造方案的论证，仅仅通过局部改造达到了既减少投资又降低漏风率的目的，可供拥有该类型空气预热器的电厂借鉴。

Modification of Air Hood Rotating Type Air Preheater

To the problem of large air leakage of hood rotary type air preheater and in connection with the specific situation in Jingmen Thermal power plant,the demonstration of various modification methods and its explorative procedare for hood rotary type air preheater were introduced.The localized modification could not only reduce the air leakage rate but also lower the cost.It can be used for reference to the power plant having the same kind of air preheater.