大型板式空气预热器在石化装置中的应用

The Application of Large Plate Air Pre-heater Used in Petrochemical Plants

大型板式空气预热器是目前较为先进的新型空气预热器,具有传热效率高、结构紧凑、寿命长、不易积灰及检修方便等优点。介绍了大型板式空气预热器的工作原理、主要性能指标和结构特点,将其用于某合成氨装置扩容改造中获得了良好的经济效益和社会效益,已满负荷连续运行2 a。

The large plate air pre-heater is an advanced new type of air pre-heater featured high heat transfer efficiency, compact structure, long life time, less potential of ash accumulation and easy maintenance. It has been installed in ammonia revamping plant and continuously operated with full load for two years. The mechanism, performance parameters and structure features of large plate air pre-heater were introduced.