火电机组凝汽器水位控制系统课程的设计.docVIP

600MW火电机组凝汽器水位控制系统 摘要 火力发电厂凝汽器的主要任务是将汽轮机排汽凝结成水并在汽轮机排气口建立与维持一定的真空度，是汽轮机的重要辅机之一，蒸汽在凝汽器中的凝结过程是电厂热力循环中的重要环节，对整个火电厂的安全，经济运行有重要的影响。提高大型凝汽器经济性的途径，除了提高设计制造和安装水平之外，更重要的是掌握凝汽器的动态特性，保证凝汽器运行的高可靠性和处于最佳经济运行状态。通过借助计算机技术可以对凝汽器建立数学模型，通过仿真实验研究，确切地掌握凝汽器的动态特性规律，了解凝汽器的运行特性从而提高其运行水平。 关键字：凝汽器 汽轮机 蒸汽 电厂 运行 The main task is to steam turbine power plant condenser exhaust steam condenses into water in the turbine exhaust port for establishing and maintaining a certain degree of vacuum is an important auxiliary steam turbine, the steam condenses in the condenser is in the process of thermodynamic cycle power plant is an important part, has an important impact on the safety, economic operation of the entire thermal power plants. Improve the way large condenser economy, in addition to improving the design manufacture and installation level, it is more important is to grasp the dynamic characteristics of the condenser to ensure high reliability and economical operation in the best state of the condenser to run. You can build a mathematical model of the condenser through the use of computer technology, through simulation studies, the dynamic characteristics of the law accurately grasp the condenser, the condenser understand the operating characteristics to improve its operating level. Keywords: condenser steam turbine steam power plants running目录 一、课程设计目的及要求 ……………………………………………………2 1.1 目的……………………………………………………………………2 1.2 要求……………………………………………………………………2 二、设计正文…………………………………………………………………3 2.1设计题目……………………………………………………………………3 2.2课题要求与内容……………………………………………………………3 三、凝汽器…………………………………………………………………………4 3.1凝汽器………………………………………………………………………4 3.2凝汽器作用?………………………………………………………………4 3.3工作原理…………………………………………………………………4 四、凝汽器水位控制系统…………………………………………………………5 4.1凝汽器水位控制系统的任务………………………………………………5 4.2凝汽器水位控制系统………………………………………………………5 4.3单冲量控制系统……………………………………………………………6 4.4系统原理……………………………………………………………………6 五、凝汽器水位自动控制?……………………………………………………8 ? 5.1凝汽器水位自动控制的目的………………………………………………8 5.2?控制原理?…………………………………