【作者】 印建安；

【导师】 章本照；

【作者基本信息】 浙江大学 ， 流体力学， 2003， 博士

【摘要】 高炉煤气余压发电装置(简称TRT装置)技术,是利用了高炉炼铁工艺中所产生煤气的压力能驱动透平发电,将原本通过减压阀消耗掉的压力能转变为电能,同时还减弱了由减压阀组产生的噪音污染,因此TRT是一种低投入、高产出的高技术环保节能设备。但由于TRT装置的高炉顶压的稳定性是影响主流程高炉生产工艺的重要因素,因此如何解决安装TRT装置后的高炉顶压稳定性问题对于TRT技术的质量和推广是很关键的。本论文的研究通过对顶压稳定性的分析,研制了控制软件,成功地解决了顶压稳定性的控制问题。 论文的研究工作是由陕鼓集团主持的“高炉TRT环保节能技术产业化示范工程”项目的一部分,该项目已被国家计委列入“国家高技术产业发展项目计划”。本论文具有重要工程应用意义和经济价值。 本文基于流体力学理论对TRT系统中的顶压波动进行了深入的理论分析和研究,建立了TRT管路系统的流体力学平衡控制方程;同时首创性地设计和建造了TRT装置模拟试验台,并制定了TRT装置顶压稳定性问题的实验方案;本文根据流体力学控制模型成功地研制出基于SIEMENS WINCC组态平台的TRT顶压稳定性控制软件(STPC),并在TRT装置模拟试验台上对STPC软件进行了反复试验,结果表明该软件对模拟炉顶压力波动和重故障紧急停机切换过程,控制准确、有效,精度高,可以工程应用。 论文的创新点主要表现在: .(1)首次对TRT装置中管路系统压力流量变化进行流体力学理论分析,建立了控制顶压稳定性的理论模型与数学方程,并据此研制出顶压稳定性软件。 (2)设计并制造了TRT装置的模拟试验台,并成功地进行了项压稳定性的控制软件的模拟试验。这在国内是首创的,国际上也未见报道。 (3)采用本论文的控制软件,通过在模拟试验台上的实验,表明该软件对于顶压稳定性的控制精度大大高于目前工程中所采用的PID控制精度,在国内是领先的,国际上居先进水平。 本论文的成果已经通过陕西省科技厅主持的成果鉴定,并获得“中国机械工业科学技术”二等奖。更多还原

【Abstract】 The blast furnace top pressure power recovery turbine unit (briefly as TRT) makes use of pressure energy from the process gas of a blast furnace, driving a turbine for power generation, which also eliminates noise pollution caused by relief valve group and avoids waste of gas pressure energy caused by throttle of relief valve group. So TRT unit is an equipment of low investment, high output and environment protection. Meanwhile, as TRT is popularized, customers often worry about instability of the blast furnace top pressure caused by TRT unit and the influence on the product when TRT unit is applied for power generation. Consequently, it is more and more important to keep the stability of the blast furnace top pressure. And how to keep the stability of the blast furnace top pressure becomes on of the urgent problem in improving the ability of competition of TRT and the popularity of TRT.Based on the theory of fluid mechanics, we analyzed the instability of the blast furnace top pressure in the TRT system in detailed and derived the physical and mathematic models (system balance control equations) according to analysis of TRT system. We established the control and experimental system for research and test of TRT top pressure stability and solve the problem of the blast furnace top pressure successfully. Meanwhile, The STPC control software devised by us is based on the SIMENS WINCC system. We also do a lot of experiment to STPC control software on the TRT control and experimental system. And all of the results indicated that the STPC control software is very effective on controlling the blast furnace top pressure when TRT works and it is easily popularized.The major conclusion has been obtained as follows:(1) We firstly analyze the pipe system in the TRT system theoretically by the theory of fluid mechanics and established the physical and mathematic models. The STPC control software is developed to solve the keep the stability of the blast furnace top pressure.(2) The control and experimental system for research and test of TRT top pressure stability is established firstly. And the STPC control software has been testified successfully in the experimental system.(3) STPC software developed by the authors have more advantages compared with the optimized PID controller (the control method is mostly adopted in TRT products) under the same condition of the TRT system test device and the two indexesof top pressure offset peak value and peak value lasting time have greatly improved in emergency change-over and stator blades stabilization process.The production of present dissertation had passed through the authenticated by the Science Committee of Shan Xi province and wined the second price of the China mechanical engineering science technology.更多还原