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摘要
我们这次毕业设计课题是工业锅炉的微机DDC控制系统，根据现状，由于我国的整个锅炉生产技术水平还比较落后，所以我国燃烧供热所用的锅炉的燃烧效率还相当低，而且也使得锅炉的燃烧不充分，而造成大气污染加重，所以这就迫切要求我们的锅炉技术得到提高。
随着科学技术的不断发展人们开始利用各种先进的仪器和技术组成计算机控制系统来代替人工复杂的控制操作，直接数字控制DDC系统（Direct Control），便是其中之一。直接数字控制DDC系统，它是工业生产计算机控制系统中用的最广泛的一种系统应用形式，在这类系统中的计算机，除了经过输入通道对多个工业过程参数进行巡回检测采集外，它还代替了模拟调节系统中的模拟调节气，按预定的调节规则进行调解运算，然后将运算结果通过过程输出通道输出并作用于执行机构，以实现多回路调节的目的。
我们这次设计就是以双交叉燃烧控制为基础作的，利用前馈—串级—比值控制系统对整个工作过程加以严格控制，模拟实物进行的设计。
本设计锅炉的燃烧控制是采用双交叉控制系统，是以维持合适的空气、燃料比值为手段，从而保证了较高的热效率。也就是利用一个测烟道中的氧含量的传感器（氧化锆）随时测的氧含量，信号在计算机处理后，利用一个串级控制系统进行调节空气和燃气的流量，同时在这之间我们加入了一个前馈控制系统，即在燃料的流量和计算机之间，把燃料的流量通过前馈信号提前进入计算机，从而通过计算机总的模块的控制而去调节空气的流量，使得空气和燃气之间维持在最佳的搭配量。
我们在设计开始之初，我们翻阅了大量的相关资料，在热力公司进行了参观，对锅炉的整体构造以及锅炉的控制形式有了一个初步的模型。我们在本设计的第二章中系统的介绍了燃烧锅炉的基本构造和工作过程。
为了进一步模拟锅炉的微机控DDC制系统我们在报告中的第六章的硬件选型中，对锅炉的控制系统所需的元件也进行了选择，比如传感器，变送器，控制器，执行器，变频器，以及各种模块等等。
由于现代化的技术发展，计算机在现代化的生产中体现了非常重要的作用，同样我们在这次设计中也利用计算机软件的作用，第八章详细介绍了工业组态软件GENIE软件，及组态的过程。
整个报告共分为八个部分，对工业锅炉的微机DDC控制系统进行了较全面的叙述。
Abstract
We this time graduate to design the lesson a tiny machine for is industry boiler DDC control system, a whole boiler for as thing standly, because of our country produces the technique level returns the comparison falls behind, so the our country burns to provide hot the burnable efficiency of a boiler for using still very low, and also make the burnable insufficiency of the burnable boiler, but result in the air pollution aggravates, so this request urgently our boiler technique gets the exaltation.
Along with science technical develop continuously people start making use of every kind of advanced instrument constituting the calculator control system with the technique to the control operation that replace the artificial complicacy, direct arithmetic figure control DDC system( Direct Control), just one of them Direct arithmetic figure control DDC system, it is an industry to produce convenient and the most extensive a kind of system in system of control of calculator application form, in this type of calculator in the system, in addition to through importation passage to several industries process parameter proceeding cruising to return to examination to collect, it returned to replace the emulation regulates the emulation in the system regulates the spirit, at the set regulate rule proceed the intermediation carries to calculate, then will carry to calculate result pass process output passage output combine function in carry out the organization, to realize many the purpose that back track regulate.
This design the burnable control of the boiler is to adopts a double of crossing to control the system, Toing maintain fit air, fuel specific value as the means, from but guaranteed the higher and hot efficiency Too is to make use of a control for measuring smoke oxygen in the way oxygen with deal spread feels machine at any time measure discharge with deal, signal at calculator handles behind, make use of a string class control system proceed regulate air with the spirit , at the same time here it we joining an control system, at fueling discharge with calculator a mold for, passing the ex- the signal to the fueling discharge advancing entering calculator, from but passing calculator gross piece but to discharge that regulate the air, make air maintained with the spirit at match the deal best.
We at beginning that design the beginning, we browsed a flood of related data, proceeding the visit in the thermodynamic energy company, having a model of first step to the whole structure of the boiler and the control form of the boilers.We are in chapter 2 that design the system introduces the basic structure of the burnable boiler with work process.
Control the system of DDC system us for the sake of the tiny machine of the further emulation boiler the hardware in chapter 6 in the report choose the type inside, also proceeding the choice to the control system a piece of the boiler, spreads to feel for example machine, change to send the machine, controller, carry out the machine, change the machine , and every kind of mold an etc.
Because of modern technique development, calculator is in modern production now count for much function, same we also make use of the function of the calculator software in this time design, a process for detailedly introducing industry a software GENIE software.
Whole report is divided into eight parts totally, the description that proceeded to the tiny machine DDC control system of the industry boiler more completely
目 录
7.2锅炉控制系统的投运（带有偏差表的控制器的投运方法）47
1. GENIE 系统安装盘、所有 GENIE 文件、研华 DLL 驱动程序和演示策略55
2) 远程硬件损坏，例如远程ADAM模块或供电电源损坏。59
