外置式蒸汽冷却器水位控制研究

Study on Water Level Control of External Steam Cooler

外置式蒸汽冷却器是回热系统中的一个重要加热器,其位于回热系统的最后一级,利用较低压力抽汽的高过热度进一步加热给水,使给水温度进一步提高。其壳侧温度一般较高,正常运行时一般为无水位运行,仅在换热管破损时考虑水位的控制。

The external steam cooler is back in the thermal system of a heater, which is located at the back of the last stage in the thermal system, using water, the water temperature to further improve. The normal operation is generally no water level operation, the control of the water level is considered. low pressure steam high heat further heat the shell side temperature is generally higher, the only when the heat exchange tube is damaged,