智能建筑给排水控制系统设计.doc

摘要 随着计算机技术、信息通信技术等电子信息技术的不断发展、进步，建筑物中设备的自动化程度越来越高。同时，随着城市建设步伐的加快．越来越多的高层建筑为城市增添了现代化气息。智能建筑技术正是在这样的背景下得到蓬勃发展的，本文在讨论智能建筑的基础上，对一幢二十六层综合楼，楼高81m的建筑的给排水控制系统进行了研究。 针对该高层商住楼用水，结合智能建筑的特点，对该建筑的给水系统、排水系统，进行了初步探讨。给排水系统主要由水泵、水池、电机及阀门等组成。采用变频器进行压力调节，采用可编程逻辑控制器进行逻辑控制。变频器、可编程逻辑控制器作为系统控制的核心部件，时刻跟随管网压力与给定压力的偏差变化，经变频器内部PID运算，通过可编程控制器控制，变频和工频，自动控制水泵投入的台数和电机转速，实现闭环自动调节恒压变量供水，在保持恒压下达到控制流量的目的。给排水系统的监控是通过计算机对系统中的各种水位、水泵工作状态和管网压力进行实时监测，按照一定要求控制水泵的运行方式、台数和相应阀门的动作，以达到需水量和供水量之间的平衡、污水的及时排放，实现水泵高效、低耗的最优化控制，达到经济运行的目的；并对给排水系统的设备进行集中管理，保证系统可靠运行。 当需水量减小时，电动机转速降低，水泵出口流量减少，否则电动机转速调高。排水系统中污水处理池、污(废)水集水井的液位由高低液位显示及越限报警来提醒。水泵过载报警监视水泵的运行状态，当水泵出现过载时停机并发出报警信号。 在本设计中，主要内容包括给水系统，排水系统设计。其中给水系统中采用恒压变频供水方式，水源是城市供水管网。 关键词：智能建筑；给水系统；排水系统；变频调器；PLC。 Abstract With computer technology, information and communication technology, electronics and information technology continues to evolve, progress, building higher and higher degree of automation equipment. Meanwhile, with the accelerated pace of the city, more and more high-rise building for the city added a modern flavor. Intelligent building technology is in this context are booming. In this paper, the discussion of intelligent building based on the Building on a twenty-six, against the high-level commercial and residential water use, combined with intelligent building features, the construction of water supply system, drainage system, were discussed. Water supply and drainage system consists of pumps, tanks, motors and valves and other components. Inverter is used for pressure regulation, using the programmable logic controller logic control. Converter, programmable logic controller as the core components of system control, always follow the pipe network pressure and the deviation of a given pressure change, The drive within the PID operation, programmable controller, frequency, and frequency, Automatic control the Number of units into the pump and motor speed, Constant Pressure to achieve closed-loop automatic adjustment of