PLC盐酸生产自控设计+梯形图
本设计主要介绍基于西门子公司S7-200系列的可编程控制器PLC和北京三文力控公司的力控组态软件系统的设计方案。运用PID算法，通过编程使用PLC的梯形图进行编程，针对工业盐酸自动化生产的工艺流程及控制要求，让程序更为简洁，改进运行方案。同时使用力控组态软件设计监控界面，实现控制系统的实时监控、数据的实时采样与处理。28984
毕业论文关键词： 盐酸生产工艺；可编程控制器PLC；PID算法
Hydrochloric acid production control design
Abstract：Chlor-alkali industry is one of the basic chemical industry. Hydrogen chloride at room temperature to have clear and excitant odour gas, hydrogen chloride aqueous solution, namely hydrochloric acid as raw materials for the base "one of the three acid two alkali", is widely used in dye, medicine, food, leather, metallurgy and other industries. Hydrochloric acid production mainly has two ways, one is direct synthesis, another is a byproduct of inorganic or organic products. And hydrogen chloride process section USES is electrolytic chlorine and hydrogen synthetic hydrochloric acid directly.
This design mainly is introduced based on Siemens S7-200 series programmable controller PLC and Beijing sunway company force control configuration software system design scheme. The PID algorithm is applied to programming using PLC ladder diagram programming, the production of automation in industrial hydrochloric acid technological process and control requirements, to make the program more concise, improve operation scheme. At the same time the use of force control configuration software design the monitoring interface, realize the real-time monitoring of the control system, real-time sampling and processing of data.
Keywords: hydrochloric acid production technology；programmable controller PLC；PID algorithm
目录
1 绪论1
1.1 生产原料的来源与性质1
1.1.1 氯气的来源1
1.1.2 氯气的性质1
1.1.3 氢气的来源1
1.1.4 氢气的性质1
1.1.5 原料及中间体规格2
1.2 盐酸的简介与合成2
1.2.1 盐酸的性质2
1.2.2 盐酸的用途2
1.2.3 盐酸的生产方法2
1.3 盐酸的生产原理及特点3
1.4 合成工艺条件3
1.4.1 温度3
1.4.2 水分3
1.4.3 氯氢的分子比3
1.5 工艺流程简述4
1.6 生产工艺控制条件4
2 力控组态软件6
2.1 力控组态软件简介6
2.2 力控组态软件的特点6
3 PLC基础8
3.1 PLC的由来和定义8
3.2 PLC的基本结构8
3.3 PLC的工作原理9
4 设计思路10
4.1 控制方案10
4.1.1 被控变量10
4.1.2 操纵变量10
4.2 控制对象10
4.3 控制流程图11
4.4 STEP7--Micro/WIN 编程软件概述12
4.4.1 STEP7--Micro/WIN 界面12
4.4.2 STEP7-Micro/WIN编程软件的基本功能12
4.5 PLC梯形图13
4.6 PLC控制系统的硬件设计16
4.6.1 PLC控制系统设计的基本内容16
4.6.2 PLC的硬件选型与配置16
4.7 参数的整定18
4.7.1 PID参数整定的基本原则18
4.7.2 PID参数工程整定方法19
5 力控组态界面设计20
5.1 监控界面设计20
5.1.1 工程创建20
5.1.2 绘制工艺流程图20
5.1.3 绘制控制界面组态21
5.1.4 I/O点图22
5.1.5 建立I/O点图23