摘 要文章进行了排水设备的选型设计，然后根据排水控制的要求，进行自动控制方面的设计。本系统采纳 SIEMENS 的 S7-300 系列 PLC，并结合各种传感器（主要为水位传感器、负压传感器、压力传感器、流量传感器等），完成系统设计中要实现的控制功能。本系统采纳水泵及管路的“自动轮换”工作制。又根据“避峰填谷”的原则确定开启水泵台数，以达到节约用电的目的。在就地 PC 端，采纳易控组态监控系统监视设备的运行情况及各个运行参数，做到有故障及时发现并尽早处理。S7-300 通过 CP340 通讯模块，采纳 RS-232C 通信标准与就地 PC 建立联系。关键词：PLC、排水系统、自动控制ABSTRACTAt first this text chose and designed drainage equipments, then designed autocontrol part based on drainage control request. This system adopts S7-300 PLC series produced by SIEMENS，with many sensors(mainly incloding water line sensors,minus pressume sensors,pressme sensors,flux sensors) to complete autocontrol function demanded in this system design. Water pumps and pipelines of this system are controlled to run in turn automatically. The number of running water pumps is confirmed by the principle of avoiding apex and filling vale in order to economize electricity. On the spot of PC,it introduces controlease configuration control system to take charge of inspecting running state and parameters of equipments so that trouble can be found and dealt with in time. S7-300 used Standard RS-232 to communicate with PC on the spot through Module CP340. KEY WORDS:drainage system； PLC； autocontrol目 录第一章 绪论……………………………………………………………………11.1 排水系统概述…………………………………………………………1 1.1.1 矿井生产过程中排水的重要性………………………………1 1.1.2 矿井排水系统的组成部分……………………………………1 1.2 井下排水系统存在的问题…………………………………………………3 1.3 排水系统为何要实现自动控制…………………………………………3 1.4 我国矿井主排...
