【摘要】 以余压能量回收技术在柴油加氢精制工艺中的应用为基础,将工艺中的高压富液能量回收。通过透平泵做功,直接对低压贫液加压,实现能量高效率的回收。能量回收过程中的压力、流量实现了优化调节,使系统更稳定高效地运行。采用分程控制的方案,增设了2条不同尺寸的透平跨线和配套的复杂控制回路,稳定了透平泵的输出功率。构建了以PLC为核心的工业控制系统,采用触摸屏和现场传感器等设备,实现了对现场运行状态的监控和调节。更多还原

【Abstract】 On the basis of the application of pressure energy recovery technology in diesel hydrofining process,the high pressure hydraulic energy of the process is recovered. Acting through the turbine pump,the low pressure liquid is directly pressurized and the high energy recovery efficiency is achieved. At the same time,the pressure and flow during the energy recovery can undergo the optimal regulation,which makes the system run more stably and efficiently. The split control scheme including two different sizes of line beside the turbines and complex control loops is introduced and the output power of the turbine pump is stabilized. The industrial control system with PLC as the core is built. Touch screen and on-site sensors and other equipment are adopted,which realizes the on-site operational status of monitoring and adjustment.更多还原