基于WinCC的煤层气输送系统监控画面的设计(2)

2019-03-29 11:17

太原理工大学现代科技学院毕业设计(论文)

CBM TRANSFER SYSTEM MONITOR SCREEN DESIGN

BASE ON WinCC

Abstract

With the development of computer technology and continual promotion of factory automation, more and more attention is paid to administration of factory information and data collection and monitor during industrial producing by means of computer technology.he configuration software,the very production of process of technology penetrating into industry, which has many advantages such as open interfaces,entire functions,lexible methods of configuration,stabilization and easy to learn etc. provide users with methods that make them develop the industrial monitor system rapidly to decrease the production obviously and shorten the period effectively.

It’s an obvious tendency in industrial control fields to set configuration software on computers,because this mode can real-time monitor industrial production process more intuitionally and conveniently, and fully exert computers’ability on complicated data disposal,report forms statistic and graphics display.What's more,configuration software can avoid troubled programming work in industrial control process,which enables users to make configuration at will to fast build up industrial monitor systems,according to users’control objects and aims.

This paper is based on conveying system, coalbed methane by automation technology, industrial communication network technology and functional configuration software technology, introduces the WinCC development based on configuration software design process of upper monitor system.

This paper firstly introduces the background of the subject and to complete the work, introduced the present situation and the production process of CBM system equipments, studies the configuration software and monitoring system, then based on the relationship between design principle and the monitoring system of the control requirements, puts

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太原理工大学现代科技学院毕业设计(论文)

forward the coalbed methane conveying system monitoring and control system of the overall design scheme. Then design the computer monitor system,including manufacture of the monitoring and controlling interface,design of configuration alarm, etc.

Key words: CBM, Configuration software, Monitoring system, WinCC

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太原理工大学现代科技学院毕业设计(论文)

目录

第一章 绪论 .............................................................................................................................. 1

1.1 研究的背景及意义 ....................................................................................................... 1 1.2 国内外研究现状 ........................................................................................................... 2 1.2.1 煤层气开发利用的现状 ......................................................................................... 2 1.2.2 煤层气发电的研究现状 ......................................................................................... 4 1.3 监控组态软件 ................................................................................................................ 5 1.4 论文研究的主要内容 ................................................................................................... 7 第二章 煤层气发电生产过程工艺设备及参数要求.................................................................... 9

2.1 煤层气发电生产过程工艺及设备................................................................................. 9

2.1.1 输送系统 .............................................................................................................10 2.1.2 发电系统 ............................................................................................................. 11 2.2 控制系统的参数及要求...............................................................................................13

2.2.1 转速控制 .............................................................................................................14 2.2.2 空燃比 .................................................................................................................14 2.2.3 管道压力 .............................................................................................................15 2.2.4 热工参数报警界限 ...............................................................................................15

第三章 WinCC监控系统总体设计.............................................................................................18

3.1 组态软件WinCC .........................................................................................................18 3.2 WinCC监控软件的设计原则 .......................................................................................21 3.3 WinCC监控程序的设计步骤 .......................................................................................22

3.3.1 3.3.2 3.3.3 3.3.4

创建项目及画面 ...................................................................................................22 添加并组态驱动器 ...............................................................................................24 添加变量标签 ......................................................................................................25 设计监控界面 ......................................................................................................27

3.3.5 报警界面的设计 ...................................................................................................28 3.3.6 数据归档及趋势界面的设计 .................................................................................30 3.3.7 用户权限的管理 ...................................................................................................31

第四章 煤层气输送系统的人机界面设计 ...................................................................................32

4.1 煤层气输送系统的总体设计 .......................................................................................32 4.2 传输系统的主画面 ......................................................................................................33 4.3 传输系统的变量 ..........................................................................................................34 4.4 传输系统的过程画面 ..................................................................................................35 4.5 报警界面的设计 ..........................................................................................................36 4.6 趋势图界面设计 ............................................................................................................40

4.6.1 创建趋势图 .........................................................................................................40 4.6.2 设置趋势图 .........................................................................................................41 4.7 用户管理 .....................................................................................................................43 第五章 结论与展望...................................................................................................................47

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太原理工大学现代科技学院毕业设计(论文)

5.1 主要研究开发的工作总结 ...........................................................................................47 5.2 进一步的研究与展望 ..................................................................................................47 参考文献 ....................................................................................................................................48 致谢 ...........................................................................................................................................49 外文原文 ....................................................................................................................................50 中文翻译 ....................................................................................................................................57

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太原理工大学现代科技学院毕业设计(论文)

第一章 绪论

1.1 研究的背景及意义

煤层气是在煤矿层及其邻近岩层中与煤伴生的以分子吸附状态赋存于煤基质表面上的一种可燃气体,其主要成分(常占90%以上)是甲烷(CH4),俗称“瓦斯”。在热值上,煤层气与常规天然气相当,发热量在8000大卡/m3以上,每1000m3煤层气相当于1t石油或1.25t标准煤。

煤层气有煤矿“第一杀手”之称,煤矿煤层气事故是煤矿安全生产的最大威胁之一。我国国有煤矿高煤层气和煤层气突出矿井占总矿井数的46%,煤层气事故频繁[1]。在中国煤矿重大恶性事故中,煤层气爆炸引起的事故约占70-80%[2],造成的伤亡占到特大事故伤亡人数的九成[3]。据中国监察部网统计,2004年全国共发生煤矿死亡事故3639起,造成6027人死亡。2003年全国矿难的死亡人数达到6177人,两年共有1.2204万名矿工死亡,其中绝大部分死于煤层气爆炸事故[4]。

煤层气不仅是矿工的生命杀手,还是人类生存环境的破坏者。煤层气中95%以上是甲烷。甲烷是造成环境温室效应的3种主要气体(甲烷、二氧化碳和氟利昂)之一,如果以原子为基准,甲烷的加热效应是CO2的25-30倍,以重量为基准则达70倍。甲烷排入大气层,不仅因其温室效应引起气候异常,而且消耗大气平流层中的臭氧,对臭氧层的破坏能力是二氧化碳的7倍,严重削弱了臭氧层对太阳紫外线侵袭的防护作用,危害人类健康[3,4]。

煤层气发电是一项多效益型综合利用项目,它能高效地将煤层气转化为电能。各种不同类型的煤层气发电设备可以利用不同浓度的矿区煤层气,这对降低发电成本、就地利用矿区煤层气资源极为有利。煤层气发电既可以直接燃用煤层气来推动往复式发动机、燃气轮机,也可以先用煤层气作为蒸汽锅炉的燃料,再利用蒸汽发电。

开发利用煤层气可以从根本上防止煤矿煤层气事故的发生,改善煤矿安全生产,提高经济效益[5]。煤层气作为优质能源具有绿色意义:基本不含硫,对各种设备腐蚀小;燃烧产生污染物少;燃烧后废气是一种气态肥料,可增强植物的光合作用;减少甲烷排放,有效缓解温室效应。开发利用煤层气,减轻大量燃烧煤造成的空气污染[3]。开发利用煤层气,可以改善我国的能源结构,增加洁净气体能源,拉动相关产业的发展[5]。

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