改善催化再生器压力仪表控制质量提高能量回收机组发电量

Improving Pressure Instrument Control of the Catalytic Regenerator to Enhance the Generating Capacity of Energy Recovery Unit

在催化裂化装置再生器压力分程控制中,烟机入口蝶阀和双动滑阀是参与控制的重要执行机构,本文通过调整蝶阀和双动滑阀动作的线性度、受控精度、灵敏度,提高了能量回收机组(烟机-主风机-电动机/发电机)仪表的控制质量,达到了回收再生烟气中携带的大部分能量,降低了机组功率消耗,提高了机组回收效能。

In the split control of the pressure in the regenerator of catalytic cracking unit, flue gas turbine inlet butterfly valve and double acting spool valve are two important execution machines directly involved in the control. In this paper, by adjusting linearity, control accuracy and sensitivity of the butterfly valve and double acting spool valve, the control effect of instruments in the energy recovery unit （flue gas turbine--fan--motor/generator） was improved to recycle most energy in flue gas, reduce unit power consumption and improve recycling performance.