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流化床干燥系统DCS控制系统设计

时间:2019-01-22 17:48来源:毕业论文
集散控制系统(Distributed Control System ,DCS)是以微处理器为基础,采用控制功能分散、显示操作集中、兼顾分而自治和综合协调的设计原则的新一代仪表控制系统

摘要:应用系统集成技术,设计一套集散控制系统,完成对干燥系统的过程控制。集散控制系统(Distributed Control System ,DCS)是以微处理器为基础,采用控制功能分散、显示操作集中、兼顾分而自治和综合协调的设计原则的新一代仪表控制系统。它是一个由过程控制级和过程监控级组成的以通信网络为纽带的多级计算机系统,综合了计算机(Computer)、通讯(Communication)、显示(CRT)和控制(Control)等4C技术,其基本思想是分散控制、集中操作、分级管理、配置灵活、组态方便。32989
沸腾流化床干燥器由空气过滤器、沸腾床主机、旋风分离器、布袋除尘器、高压离心通风机、操作台组成。由于干燥物料的性质不同,配套除尘设备时,可按需要考虑,可同时选择旋风分离器、布袋除尘器,也可选择其中一种。一般来说,比重较大的冲剂及颗粒物料干燥只需选择旋风分离器。比重较轻的小颗粒状和粉状物料需配套布袋除尘器,并备有气力送料装置及皮带输机供选择。
毕业论文关键词: DCS控制;流化床干燥器;旋风分离器
DCS control system for fluidized bed drying system
Abstract:Using the system integration technology, design a set of distributed control system, and complete the process control for drying system. Distributed control system (DCS (distributed control system, DCS) based on microprocessor based distributed control function, concentrated operation, taking into account the points and self-government and comprehensive coordination of the design principles of a new generation of instrument control system is used. It is a by the process control level and process control level of the communication network as a link to the multi-level computer systems, computer (computer), communication (Communication), display (CRT) and control (control) 4C technology, the basic idea is decentralized control, centralized operation, classification management, flexible configuration, convenient configuration. 源自$六l维,论:文w网)加7位QQ3249^114 www.lwfree.cn
The fluidized bed dryer is composed of air filter, boiling bed host, cyclone separator, bag filter, high pressure centrifugal fan and operation platform. Because of the different nature of dry material, when the dust removal equipment is necessary, the cyclone separator and bag filter can be chosen, and one of them can be selected.. In general, the proportion of the larger granules and particulate material dry just choose cyclone separator. The lighter weight and the powder material need to be matched with the bag filter, and have the pneumatic feeding device and the belt conveyer for choosing.
KeyWords:DCS control;fluidized bed dryer;Cyclone separator
目录
1 绪论    5
2 DCS系统的介绍    5
2.1集散控系统的体系结构    5
2.2集散控制系统的硬件结构    6
3 DCS系统概述    7
3.1标准规范    7
3.2系统特点    8
4 DCS控制规模    8
4.1输入/输出信号类型    8
4.2输人/输出规模    9
5系统功能要求    9
5.1控制功能    9
5.1.1连续控制    9
5.1.2离散控制功能    10
5.2画面功能    10
5.3报表功能    11
5.4历史数据存储功能    11
6系统设计    11
6.1设计原则    11
6.2操作站    12
6.3控制和数据处理系统    13
6.4通信系统    13
7技术要求    14
7.1 冗余要求    14
7.1.1操作站    14
7.1.2控制和数据处理系统    14
7.1.3通信系统      14 流化床干燥系统DCS控制系统设计:http://www.lwfree.cn/zidonghua/20190122/29811.html
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