分布式余压透平发电装置应用研究

发布时间：2018-09-19 20:32

【摘要】：余压透平发电技术是通过增加透平发电装置将工艺过程中的液体高压能量经过透平机的旋转做功,使其驱动发电机发电,从而实现能量的回收和再利用。随着液体能量回收技术的日益发展,不同形式的液体余压能量回收装置被广泛运用到存在富裕液体压力能的行业中,不仅可以实现能源的回收利用,同时也可以给企业带来良好的经济效益。本文是以余压透平发电技术在合成氨脱碳工艺中的应用为研究基础,对脱碳工艺中液体压力能浪费现象进行了节能改造,并对余压透平发电系统整体运行状况进行研究。本文首先对余压透平发电系统整体结构进行了分析,提出了系统的总体设计方案,以水力透平发电机组作为系统的核心机构,并对系统的运行效率和性能及工作原理进行了分析。其次对余压透平发电系统中液体压力回收环节进行了优化设计。采用了变频调速控制系统对压力、流量进行调节,并选用PID控制算法控制系统的压力、流量,使系统能够稳定的运行。最后对系统的发电并网环节进行了设计。通过对比分析决定采用一体式水力透平加异步发电机的配置方式来构成发电机组,采用晶闸管软并网方式可以使机组平稳顺利并网。并对并网过程中的转速、电压等参数进行调节和控制。根据系统的工艺流程,设计了电气控制系统和人机交互系统。对分布式余压透平发电装置的控制系统进行了设计,分析研究了系统工艺的流程图,采用PLC控制器作为系统控制的核心,详细介绍了系统的软件编程,对回收系统各个环节的工作进行控制,以达到系统智能控制及稳定的目的。并利用组态王软件,设计了余压透平发电系统的监控界面、数据显示界面及报警界面等。控制界面的引入保障了系统的顺利运行,进而实现智能化监控功能;实时趋势曲线的引入,可以很好的对余压透平发电装置进行数据分析,从而极大的提高系统的工作效率使之稳定运行。
[Abstract]:The technology of residual pressure turbine power generation is to drive the generator to generate electricity by adding the high pressure energy of liquid in the process of turbine generation through the rotating work of the turbine so as to realize the recovery and reuse of energy. With the development of liquid energy recovery technology, different types of liquid residual pressure energy recovery devices are widely used in the industry with rich liquid pressure energy, which can not only realize the recovery and utilization of energy. At the same time, it can also bring good economic benefits to enterprises. Based on the application of residual pressure turbine power generation technology in ammonia decarburization process, the waste of liquid pressure energy in decarburization process is reformed, and the whole operation condition of residual pressure turbine power generation system is studied in this paper. In this paper, the overall structure of the residual pressure turbine power generation system is analyzed, and the overall design scheme of the system is put forward. The hydraulic turbine generator unit is taken as the core mechanism of the system. The operation efficiency, performance and working principle of the system are analyzed. Secondly, the optimal design of the liquid pressure recovery in the residual pressure turbine system is carried out. The variable frequency speed control system is used to adjust the pressure and flow, and the PID control algorithm is used to control the pressure and flow of the system, so that the system can run stably. Finally, the power generation link of the system is designed. By comparing and analyzing, it is decided to use the configuration mode of integrated hydraulic turbine and asynchronous generator to construct the generator set, and to use the thyristor soft grid-connected mode can make the unit smoothly and smoothly connected to the grid. And the speed, voltage and other parameters in the process of grid connection are adjusted and controlled. According to the technological process of the system, the electrical control system and the man-machine interaction system are designed. The control system of distributed residual pressure turbine generator is designed. The flow chart of the system process is analyzed and studied. The PLC controller is used as the core of the system control, and the software programming of the system is introduced in detail. The work of each link of the recovery system is controlled to achieve the purpose of intelligent control and stability of the system. Using Kingview software, the monitoring interface, data display interface and alarm interface of residual pressure turbine power generation system are designed. The introduction of the control interface ensures the smooth operation of the system and realizes the intelligent monitoring function. The introduction of the real-time trend curve can well analyze the data of the residual pressure turbine generator. Thus greatly improve the working efficiency of the system to make it stable operation.
【学位授予单位】：河北科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM31

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