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 .

压旁路系统由锅炉出口及冷再热之压旁路控制阀，主汽阀和喷阀组成。

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.

由位计测量位，进行信号处理后输入控制位PLC中，然后由PLC对位控制阀进行控制以调节位。