加热炉压力控制_毕业设计论文.docVIP

PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT II 攀枝花学院毕业设计(论文) 摘要 PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT I 加热炉压力控制 摘 要 在我国蓬勃发展的今天，工业自动化越来越受到人们的关注，为实现攀钢集团更有效的利用资源，现如今工业发展朝向自动化，多种控制方法的方向发展。锅炉控制的主要目的是调节锅炉出口的蒸汽压力、流量和温度，使其达到所希望的数值。 同国外相比，我国处于快速发展阶段，小型PLC已批量生产;中型PLC已有产品;大型PLC已开始研制，而国外发展正步入新一代，产品更新速度快，且由于可编程序控制器具有可靠性高和应用的简便性的特点，广泛应用于食品、化工、金属、矿产、造纸，汽车等行业，以较快速度增长，且新行业也将广泛应用它。 可编程控制器从技术动向上看，计算机技术的新研究成果会更多地应用于可编程控制器的设计和制造上，会有运算速度更快、存储容量更大、智能更强的品种出现。就整个发展趋势来看，大型的可编程控制器朝向高速度、多功能、网络化、适应DCS的递接式控制系统方向发展；小型可编程序控制器向小型化、增强功能、降低价格、模块化的“黑盒子”方向发展。就发展趋势方面的特点来看有以下几个方面：。 关键词：加热炉炉膛，PLC，压力控制，组态 PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT I 攀枝花学院毕业设计(论文) ABSTRACT PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT II ABSTRACT Today, in Chinas booming industrial automation more and more get the attention of people, for the realization of the pangang group, more effective use of resources, nowadays industry to develop towards automation, a variety of control methods in the direction of development. The main purpose of boiler control is to regulate boiler, steam pressure, flow rate and temperature at the outlet to the numerical value of hope. Compared with abroad, our country is in rapid development stage, small PLC has batch production; Medium-sized PLC existing products; Large PLC has started to develop, and development abroad is entering a new generation, product updates faster, and because the programmable controller has the characteristics of high reliability and ease of application, widely used in food, chemical, metals, mining, papermaking, automobile and other industries, growing at a rapid rate, and it will be widely used in the new industry. Programmable controller from the point of view of technology, computer technology in the application of new research results will be more on the programmable controllers design and manufacturing, there will be a faster computing speed, storage capacity, larger, more intelligent species. In developing trend as a whole