電力水利]基于plc地鐵排水控制系統(tǒng)的設(shè)計(jì)-wenkub
2022-11-22 05:42:13 本頁面
【正文】 災(zāi)系統(tǒng)的主要設(shè)施之一。通過對(duì)系統(tǒng)工藝的詳細(xì)分析，提出了對(duì)系統(tǒng)的控制 要求，確定了系統(tǒng)的控制方案。 關(guān)鍵詞： 排水， PLC，順序控制，備用 The design of subway drainage control system based on PLC Author: Yang Quanzhi Tutor: Ren Yanshuo Abstract The system for the subway drainage is one of the main facilities to the disaster prevention system and the drainage system. It’s important to vent seeper in the station in order to protect the subway system from be damaged. The system is controlled by the S7200PLC produced by Siemens and the digital expansion module EM223 with some Intermediate relay to replace the traditional relaycontact system, use the Soft control work wiring programmed by the PLC to pump the water from every pool and monitor the water level of them instead of the Hardwired control circuit constituted by the traditional relaycontact ones. When the pump driver is in error, the alarm will be touched off at the same time. If this alarm be kept for some times, the system will be shut down. After analyze the crafts of the system carefully, the request and the plan were worked out. This Paper contains the design of the software and the hardware for the system, and achieve the logical, safety control, fault measurement and the key for every alarm of it. At the same time, the automation and the intelligent of the control of the pump and the valve has been achieved in this paper. Lower the plication level of the Electrical Control System. Higher the degree of automation and the reliability of the system. After the Simulation in the lab, our system is reliable. Key Words: Drainage, PLC, Sequence control,Standby 目 錄 摘 要 I Abstract II 1 緒論 1 研究背景 1 國內(nèi)研究現(xiàn)狀 1 設(shè)計(jì)的目的及意義 2 2 2 系統(tǒng)工藝設(shè)計(jì) 4 系統(tǒng)控制的主要功能 4 4 3系統(tǒng)整體控制方案的選擇 6 6 6 主流控制系統(tǒng) 6 PLC 與其他工業(yè)控制系統(tǒng)的比較 6 系統(tǒng)控制方案的確定 8 4系統(tǒng)硬件的設(shè)計(jì) 10 10 PLC 的選型 10 擴(kuò)展模塊的選擇 11 傳感器的選擇 12 閥門的選擇 12 泵的選擇 14 電機(jī)的選擇 15 接觸器的選擇 15 過載保護(hù)裝置 15 17 系統(tǒng)配電圖 17 電機(jī)控制線路圖 18 控制器外部接線
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