PLC在鋼管打壓測試系統中的應用

電氣自動化論文編號:ZD889    論文字數:24536,頁數:59 
目錄
1  緒論 - 1 -
2  鋼管生產的基本工藝流程 - 5 -
2.1  鋼管生產的基本工藝流程 - 5 -
3  打壓系統總體方案與設計概述 - 8 -
3.1  壓力檢測系統的來由 - 8 -
3.2  寧波金美亞鋼管打壓檢測系統 - 10 -
3.3  系統基本特性及配置 - 10 -
3.4  壓力檢測流程圖 - 13 -
4  可編程控制器介紹與程序設計 - 15 -
4.1  可編程控制器（PLC）簡介 - 15 -
4.2  控制器的分類及特點 - 16 -
4.3  PLC的主要功能 - 17 -
4.4  PLC控制系統的分類 - 18 -
4.5   PLC S7—200系統性能分析 - 20 -
4.6  PLC檢測系統的可靠性設計 - 23 -
4.7  PLC控制程序的設計 - 25 -
4.8   本章小結 - 29 -
5  組態軟件及控制畫面 - 31 -
5.1  組態軟件的選擇 - 31 -
5.2   軟件設計以及系統功能 - 32 -
5.3    三維力控組態軟件的簡介 - 33 -
5.4    控制界面介紹 - 35 -
本章小結： - 38 -
6    實際應用及其意義 - 39 -
6.1   上位機組態軟件的選擇： - 39 -
6.2  PLC的選型： - 43 -
6.3   現場實物試驗 - 44 -
6.4   試驗小結 - 45 -
6.5  性能測試 - 45 -
6.6  打壓系統的實際應用意義 - 49 -
7  總結與展望 - 50 -
致謝 - 51 -
參考文獻 - 52 -
附錄： - 53 -
寧波金美亞集團鋼管打壓系統PLC程序STL語句（部分） - 53 -

 摘要
 本文取材于實際的應用型課題——“寧波金美亞集鋼管打壓系統”的研制。這一套壓力檢測系統是應用于鋼鐵企業的要求制作的封閉式腔體全自動壓力壓力實時監控系統。現場采用SIEMENS  S7—200PLC和力控組態軟件聯合控制。PLC主要完成現場的動作控制和壓力值的采集等工作，裝有力控組態軟件的PC機主要通過與PLC通訊控制PLC進而控制現場的各種設備的自動運行。
 本文首先針對技術要求，評價了各種檢測工藝和方法，論述了整套裝置的設計方案，確定了該測厚裝置由機械系統、藕合系統、測量系統和控制系統構成。滿足了高速、自動檢測和可視化監測的要求，實現了形象地顯示厚度曲線、自動進行超標報警、檢測數據自動的存儲、查詢的功能，遵循制造成本低、實用性強的原則。同時，在水壓測試理論的基礎上歸納出了傳感器選擇、重復頻率、檢測速度和分辨率之間的關系式，運用此關系式確定出了本裝置中傳感器的具體布置和使用數量。在此基礎上，對禍合系統的檢測容器、密、封結構以及凈水子系統進行了研究，并通過試驗改進了此系統的設計，此裝置已成功用于生產中。
 第一章，總體介紹了系統的背景 第二章，介紹了鋼管的生產工藝，第三章，介紹了系統的總體方案和設計概述，第四章，可編程控制器的介紹和程序編寫，第五章，組態軟件的介紹和組態畫面的編寫，第六章，打壓系統的實際應用，第七章，打壓系統的發展和展望。
 與國內外同類技術相比，具有設計制造容易、信號傳遞與接收簡單、適用鋼管循環測壓的特點，其制造費用低、故障率低、維護成本低。
 關鍵詞： 鋼管，測壓，水浸法，PLC A/D轉換  串口通訊

ABSTRACT
 In this paper, drawn from the practical application of topics - "The Ningbo AIU-pressure pipe system" developed. This is a pressure detection system used in the iron and steel enterprises produced the request of the closed cavity pressure on the real-time automatic pressure monitoring system. The scene by SIEMENS S7-200PLC and control of the joint control of the configuration software. PLC completed the scene of major motor control and pressure on the value of the acquisition, and so on, with effective control of a PC configuration software primarily through communication with the PLC control PLC thereby control the scene of the equipment to run automatically.
 In this paper, for technical requirements, the eva luation process and a variety of detection methods, devices on a package of the design options to determine the thickness measurement devices from mechanical systems, coupled systems, measuring system and a control system. Meet high-speed, automatic detection and visual monitoring requirements, and the thickness of the image display, automatic超標alarm, automatic detection of data storage, for the function, follow the manufacture low-cost, practical principle. At the same time, pressure test on the basis of theory into a sensor choice, repetition rate, the rate of detection and resolution of the relationship between the type and use this formula to determine the sensors in the device's layout and the use of specific number. On this basis, the coupling system of testing containers, secret, closed structure, and water purification systems were studied and passed the test to improve the design of this system, this device has been used successfully in production.
 The first chapter, introduced the system overall context of the second chapter, on the pipe production process, Chapter III, introduced a system of the overall plan and design overview, Chapter IV, the PLC on the preparation and procedures, the Fifth Chapter, the configuration software on the configuration screen and the preparation of Chapter VI of suppressing the practical application of Chapter VII of suppressing the development and prospects
    This equiPment has been aPPlied to the Production suecessfully. ComPared to Similar technique at home  and  abroad,it is easy to design and make，  the transfer  and Receiving system of the signal is very simPle, it can be also aPPlied to the steel  tube with   big diameter.The eost,fault rate and the fee for maintenance is low.
  Keywords: pressure testing， immersiontesting，   steeltube，ultrasonie，PLC A/D Serial port communication