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PLC城市供水系统自动化的设计+梯形图

时间:2018-01-11 14:50来源:毕业论文
变频器也从多端速度控制、模拟量输入控制,发展到专用变频器。实现了城市供水系统简单、高效、低耗能的功能,并且实现自动化的控制过程,采用PLC作为核心控制是个较好的方案
摘要:随着我国社会经济的发展,住房制度改革的不断深入,人们生活水平的不断提高,城市中各类小区建设发展十分迅速,同时也对小区的基础设施建设提出了更高的要求。小区供水系统的建设时其中的一个重要方面,供水的经济性、可靠性、稳定性直接影响到小区住户的正常生活和工作,也直接体现了小区物业管理水平的高低。传统的恒速泵加压供水等供水方式普遍存在效率低、可靠性差、自动化程度不高等缺点,难以满足当前经济生活的需要。
城市供水系统的主要在用水量不断变化的情况下,维持管内水压在一定范围内,即满足用户用水的要求,又能够最大程度节约能源、延长设备寿命。变频供水的控制器经历了从继电器-接触器,到单片机,再到PLC。而变频器也从多端速度控制、模拟量输入控制,发展到专用变频器。实现了城市供水系统简单、高效、低耗能的功能,并且实现自动化的控制过程,采用PLC作为核心控制是个较好的方案。17476
关键词: 城市供水系统;PLC;变频调速;组态王
The design of urban water supply systems automation
Abstract:Along with the development of the socio-economy of our country, the housing system is going deep into reforms, and people’s living standard is being improved. At the same time, in the same time,in the city, each kind of sub-district construction is developing very quickly, which puts forward higher requirement for the infrastructure of sub-district. And the construction of sub-district water supply is an important aspect in which. The reliability,stability and economy of water supply directly affects sub-district household’s normal life and work, and also embodies the difference in the level of sub-district property management. The traditional means of water supply such as the pump pressurization water supply at constant speed and so on, are hard to satisfy the needs of current economic life, because low efficiency,reliability and automation level are all commonly existing in these means.
源自六/维-论;文;网!加7位QQ324,9114 www.lwfree.cn

  Urban water supply system, mainly in the water changing circumstances, to maintain its water pressure within a certain range, that is, to meet the requirements of the user of water, but also to the greatest degree of energy conservation, to extend the service life. Frequency of water supply has gone from a controller relay - contactor, to the microcontroller, to the PLC. The inverter speed control from multiterminal analog input control, the development of the special inverter. Implementation of urban water supply system is simple, efficient, low-power features, and achieve automated control process, using PLC as a core control is a better solution.
Key words:urban water supply system;PLC;frequency control;kingview
目录
第1章 绪论..1
1.1 课题背景意义.1
1.2 供水系统简介.1
1.3 供水系统的功能要求.2
    1.3.1 信号输入.2
    1.3.2 控制输出信号3
第2章 供水系统的总体设计与分析4
2.1 供水系统的结构 .4
2.1.1 主要组成结构4
2.1.2 电气控制系统4
  2.2 供水系统的工作原理.5
2.2.1 控制系统总体框图..5
2.2.2 系统工作过程5
第3章 供水系统的硬件设计7
3.1 PLC 选型..7
3.2 PLC的I/O 资源分配.8
3.2.1 数字输入模块8
3.2.2 数字输出模块8
3.2.3 模拟量输入模块.9
  3.3 系统主电路分析及设计..10
  3.4 系统控制电路分析及设计12
3.5 其他资源配置.13
3.5.1 接触器13
3.5.2 变频器13
3.5.3 各类按钮.15
3.5.4 人机界面.15
3.5.5 传感器15

第4章 供水系统的软件设计16
4.1 总体流程分析.16
4.1.1 手动模式.16
4.1.2 自动模式.17
4.2 功能模块梯形图设计.23 PLC城市供水系统自动化的设计+梯形图:http://www.lwfree.cn/shuxue/20180111/19154.html
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