基于管网特性曲线的分时变压供水研究  

Reaserch of Water Supply Method with Time-sharing Variable Pressure Based on Pipeline Resistance Characteristic Curve

作　　者：霍聪聪[1] 陈红勋[2] 李国丽[1] 刘文梅[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072 [2]上海市应用数学和力学研究所,上海200072

出　　处：《工业控制计算机》2012年第3期65-66,共2页Industrial Control Computer

摘　　要：在分析了恒压和变压两种供水方式能耗的基础上,基于范宁公式建立了管网阻力特性模型,利用变频器、远传压力表和水泵特性估算出流量,根据不同用水量改变水泵工作扬程使其沿着管网阻力特性曲线移动,以达到水泵供给与用户需求间的能量平衡,从而实现节能的目的。在上海某高校宿舍区一段时间的应用实践表明,该宿舍区使用该技术后节约用水量17%、用电量28%,其单位水用电量节约13%。The energy consumption of water supply technology with constant pressure and variable pressure are analyzed. Pipeline resistance characteristic model is built based on Fanning equation and the flow can be estimated by frequency converter, pressure transmitter and pump characteristics.To batance the energy of water pump supply and demand of users,the water pump working head is changed along the pipeline resistance characteristic curve according to different flow to achieve the purpose of saving energy.A period of application at show that the use of this technology can save water consumption 17%,electricity consumption 28%,unit water electricity consumption can save 13%.

关 键 词：变压供水 管网阻力特性曲线 估算流量 节能 

分 类 号：TM921.51[电气工程—电力电子与电力传动]