The HP-bypass system between the boiler outlet and cold reheat consists of an HP-bypass control valve, a feedwater stop valve and a water injection valve, for steam attemperation .

高压旁路由锅炉出口及冷再热之间的高压旁路控制阀，水主汽阀和喷水减温阀组成。

By fluviograph survey water level, after clear signal processing, inputs the control water level in PLC, then carries on the control by PLC to the water level control valve to adjust the water level.

由水计测量水，信号处理后输入控制水的PLC中，然后由PLC对水控制阀控制以调节水。