棉紡廠織布車間空調自動控制系統

論文編號:ZD1262  論文字數:23552,頁數:45  附原理圖，外文翻譯

摘要
 
 紡織空調是棉紡廠重要設備。要提高產品質量和發展新產品都對車間溫濕度有更高的要求；棉紡廠的空調用電占全廠用電量的15-25%，是節能工作的重點對象；降低車間空氣含塵量不僅能改善勞動條件，而且能減少產品的瑕疵。可見紡織空調對保護工人身體健康，提高產品質量，降低消耗和成本，降低工人勞動強度和提高勞動生產率有重要作用。
 織布空調自動控制系統是一種針對織布車間溫濕度進行調節的空調系統。該系統主要通過改變車間的送風量來調節車間的溫濕度，使之達到設計要求。
 該空調系統通過對室外溫度的檢測來判別冬夏季節的轉換，溫度設有上下限控制并有超限報警功能。
 傳感器采用濕敏陶瓷濕度傳感器和鉑電阻溫度傳感器。風機及水泵調節電路采用不可逆PWM調速電路。風門調節采用步進電機驅動。
 單片機控制系統采用89C51單片機最小系統。人機接口采用8279鍵盤顯示電路。
 同時，本文還論述了棉紡織廠溫濕度調節的基本原理和原則，并附有軟件程序。
 
 
 關鍵字：溫濕度控制 AT89C51單片機  ADC0809傳感器 8279鍵盤顯示電路
 
ABSTRACT
 
 Air-condition is one of the most important equipment of textile mill, It needs higher requirement on air temperature and humidity to improve the production and to develop new varieties. The consume of electricity of air-condition occupies 15-25 percent of the hole textile mill. It’s the emphasis of energy saving. To lower the amount of dust in the air in workshop can not only improve he condition of laboring, but also reduce the flaw on the product. As you see, air-condition can do much work on labor heath protecting, quality of the production improving, consume and cost lowering, the intensity of labor reducing and the production efficiency of labor raising.
  The system of spinning air-condition automatic control is a system of air in the which counters the adjustment of the temperature and the humidity of air in the workshop, The system adjusts the temperature and humidity of the room to meet the requirement of design mainly by changing the quantity of the wind blowing.
 The air-condition system judges the changing of season by checking up the temperature outside. And it has the ability to alarm when the temperature is out of the control.
 The sensors are ceramics humidity sensor and Pt register sensor. The circuit of motor control is PWM unreversible circuit. The air door is driven by the pace-motor.
 The central control system of single single chip micro-controller adopts 89c51 CPU. The interface between person and the system adopts 8279 keyboard and showing circuit.
 The design discusses the basic principle of the air temperature and humidity in textile mill adjustment, too and enclosed herewith the program of software.
 
 
 Keywords：The temperature humidity controls， AT89C51 the monolithic integrated circuit， ADC0809 sensor， 8279 keyboards display circuit

目 錄

緒論 ………………………………………………………………………1
1.1 空調的基礎知識及發展………………………………………………………1
1.2 方案論證………………………………………………………………………4
棉紡廠空調調節原理 ……………………………………………………6
2.1 空氣的主要參數 …………………………………………………………… 6
2.2 空氣條件與人體健康的關系 ……………………………………………… 6
2.3 溫濕度與棉紡織生產的關系 ……………………………………………… 7
2.4 溫濕度調節 ………………………………………………………………… 8
第三章 棉紡廠織布車間空調自動控制硬件設計 ………………………………11
3.1 控制要求………………………………………………………………………11
3.2 設計方案及系統示意圖和框圖  ……………………………………………11
3.3 系統的硬件組成及原理 …………………………………………………… 13
3.3.1 8279鍵盤/顯示電路……………………………………………………… 13
3.3.2 LED顯示部分 ………………………………………………………………15
3.3.3 ADC0809芯片引腳功能…………………………………………………… 16
3.3.4 89C51最小應用系統設計 …………………………………………………19
3.3.5傳感器的功能及其技術參數 ………………………………………………23
3.3.6風機測速電路 ………………………………………………………………26
3.3.7角度測量電路 ………………………………………………………………27
3.3.8風門角度控制 ………………………………………………………………29
3.3.9轉速調節 ……………………………………………………………………30
第四章 棉紡廠織布車間空調自動控制軟件設計……………………………… 35
4.1 主程序流程圖…………………………………………………………………35
4.2 溫度檢測子程序流程圖 …………………………………………………… 36
4.3中斷流程圖及子程序流程圖…………………………………………………37
4.4 程序清單  …………………………………………………………………  38
結束語 …………………………………………………………………………… 44
參考文獻  ………………………………………………………………………  45
 附錄A 溫度變送電路 …………………………………………………………… 46
 附錄B 織布車間空調自動控制原理圖 ………………………………………… 47