回转式空气预热器非接触式漏风控制系统

Non contact Air Leakage Control System for Rotary Air Heaters

一种非接触式的扇形板密封间隙自动控制系统，采用自行研制的耐高温、适合电厂应用的电涡流位移传感器，控制器采用可编程序控制器（ Ｐ Ｌ Ｃ）完成全部控制功能，最后介绍了实际运行情况。

This paper describes a non contact automatic control system of seal clearance containing fan shaped plates. It employs Chinese made high temperature resistant eddy current displacement sensors, suitable for use in power stations. Programmable logic controllers are installed to carry out all control functions. In conclusion, given are some results of the system's practical use on work site.