600MW机组脱硫系统SO_2值的自动控制调节与应用

The Automatic Control Regulation of SO_2 Value in 600 MW Desulfurization System and the Application of This System

脱硫系统的运行,最终目的是通过吸收塔内浆液有效地吸收烟气中的SO_2,达到排放标准。当系统煤质变动以及脱硫系统部分重要设备退备等诸多问题出现时,容易造成运行人员在负荷变化大、升降速率高的情况下无法较好地手动对净烟气SO_2参数进行调节。因此,通过自动控制供浆调整净烟气SO_2参数对于减轻运行人员负担、保证脱硫系统稳定运行以及确保不发生环保事件至关重要。

The operation of the desulfurization system, the ultimate goal is through the absorption tower in slurry to absorb the SO2 in flue gas effectively and achieve discharge standards. When many problems arising such as system coal quality changes ,part of the important equipments retire in desulfurization system and so on, easy to cause operators can not regulatie the SO2 in manual operation under the situation of big change loading and high speed lifting, So adjusting the SO2 in automation control way is very important for reducing the work of operators, ensuring the desulfurization system stable operation and no environmental incidents.