基于力控組態(tài)軟件的中央空調(diào)監(jiān)控系統(tǒng)設計

電氣自動化論文編號:ZD950    論文字數(shù):13944,頁數(shù):32

目 錄
中文摘要……………………………………………………………………………. . .………..I
英文摘要……………………………………………………………………………. . .………..II
目錄……………………………………………………………………………. . .………………III
1 前言……………………………………………………………………………………………1
2 中央空調(diào)系統(tǒng)的總體設計思路和原理………………………………………………. .2
2.1  總體控制方案…………………………………………………………………….……2
2.2  設計觀點…………………………………………………………………………….... 2
     2.2.1  采用不同空調(diào)機組，相互獨立的溫度設定控制……………………………3
     2.2.2  自由化設計……………………………………………………………………3
     2.2.3  系統(tǒng)采用冗余化設計…………………………………………………………3
     2.2.4  溫度實時監(jiān)控設計……………………………………………………………3
2.3  主要功能實現(xiàn)方法……………………………………………………………. . .……3
2.4  中央空調(diào)新風系統(tǒng)的原理…………………………………………………………. . .4
2.5  中央空調(diào)的監(jiān)控設計……………………………………………………………. . .…4
     2.5.1  新風機組的監(jiān)測控制…………………………………………………………5
     2.5.2  全空氣空調(diào)機系統(tǒng)的監(jiān)控設計………………………………………………5
 2.5.3  風機盤管系統(tǒng)的監(jiān)控設計……………………………………………………7
 2.5.4  中央空調(diào)的制冷系統(tǒng)的監(jiān)控設計……………………………………………7
3  硬件組態(tài)…………………………………………………………. …………. …………. ..9
 3.1  西門子PLC的你S7-300的簡介……………………………………………………..9
 3.2  由PLC組成的中央空調(diào)系統(tǒng)…………………………………………………………11
        3.2.1  PLC輸入信號的構成…………………………………………………………..11
4  軟件組態(tài)…………………………………………………………………………. . .………14
 4.1  力控組態(tài)軟件的簡介 ………………………………………………………………..14
 4.2  上位機對新風系統(tǒng)的監(jiān)控……………………………………………………………14
 4.2.1  繪制新風系統(tǒng)的組態(tài)界面…………………………………………………..15
 4.2.2  創(chuàng)建監(jiān)控點和PLC連接……………………………………………………...17
 4.2.3  腳本程序……………………………………………………………………..19
 4.2.4  報表和實時曲線……………………………………………………………..21
 4.2.5  與關系數(shù)據(jù)庫的連接……………………………………………………….23
5  系統(tǒng)的調(diào)試………………………………………………………………………………....25
 5.1  組態(tài)界面的調(diào)試………………………………………………………………………25
 5.2  與數(shù)據(jù)庫的連接………………………………………………………………………25
 5.3  上位機與下位機的通訊………………………………………………………………25
6  總結…………………………………………………………………………………………..26
致謝………………………………………………………………………………………….........27
參考文獻…………………………………………………………………………………………28

摘  要
  隨著工業(yè)自動化的迅猛發(fā)展，DCS、PLC等控制系統(tǒng)在工業(yè)領域的廣泛應用，安裝有DCS、PLC、安全柵柜、端子柜、操作站、上位機等關鍵控制設備的中央控制室在工廠或企業(yè)的核心地位得到充分的肯定[1]，中央控制室作為工廠控制系統(tǒng)的一部分，其功能要求（如防電磁干擾、防輻射、防爆、防水、防靜電、防鼠，合理的溫度、濕度等）在設計上已經(jīng)逐步規(guī)范、完善；中央控制室根據(jù)布局劃分，基本包括：操作室、上位機室、機柜室、配電室、走廊、輔助人員工作室，一般設有專用中央空調(diào)集中負責溫度、濕度控制。但是我們發(fā)現(xiàn)在夏季經(jīng)常因為中控室空調(diào)主機發(fā)生故障，機柜室超溫報警，而DCS等電子卡件在高溫環(huán)境下運行容易發(fā)生故障，為了應急許多用戶只好鉆穿中央控制室的防爆墻，在控制室臨時安裝幾臺柜式空調(diào)機；而機柜室溫度正常時，操作人員卻要經(jīng)常穿著棉衣工作的奇怪現(xiàn)象。

關鍵詞：中央空調(diào)系統(tǒng)  組態(tài)軟件  監(jiān)控

Abstract
 With the rapid development of industrial automation, DCS, PLC and other control systems in a wide range of industry applications, the installation of DCS, PLC, safety barrier, terminal cabinets, operator station, host computer control equipment and other key central control room in a factory or the core of enterprises are fully sure that, the central control room as part of the factory control system, its functional requirements (such as anti-electromagnetic interference, radiation, explosion-proof, waterproof, anti-static, anti-rat, a reasonable temperature, humidity etc.) in the design have been gradually standardized, improved; central control room in accordance with the layout of division, the basic include: operating room, PC room, cabinet room, power distribution room, corridors, studio support personnel, the general has a special focus on the central air-conditioning responsible for temperature and humidity control. However, we found that often in the summer air-conditioning control room in the system breakdown, over-temperature alarm cabinet room, and the DCS, such as e-cards to run in high-temperature environment prone to failure, many users had no choice but to emergency drilling blast walls of the central control room in the control room a few temporary tank installed air-conditioning units; and cabinet room temperature normal, operators often have to work wearing a strange coat.
Keywords：Central air-conditioning system  Configuration Software  Monitoring