[1]王彤,刘力嘉,曹仙桃,等.全变频控制恒压供水设备技术探讨[J].中国给水排水,2023,39(4):42-46.
　WANGTong,LIU Li-jia,CAO Xian-tao,et al.Technical Discussion on Full Frequency Conversion Water Supply Equipment[J].China Water & Wastewater,2023,39(4):42-46.
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全变频控制恒压供水设备技术探讨

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第4期 页码: 42-46 栏目: 出版日期: 2023-02-17
Title:
Technical Discussion on Full Frequency Conversion Water Supply Equipment
作者:
王彤1， 刘力嘉1， 曹仙桃2， 连松3， 王峰林3， 沈月生4， 何皎洁1
（1.长安大学 建筑工程学院，陕西 西安 710061；2.西安市二次供水管理中心，陕西 西安 710016；3.西安市自来水有限公司，陕西 西安 710082；4.上海中韩杜科泵业制造有限公司，上海 201715）
Author(s):
WANG　Tong1， LIU Li-jia1， CAO Xian-tao2， LIAN Song3， WANG Feng-lin3， SHEN　Yue-sheng4， HE Jiao-jie1
（1. School of Civil Engineering， Chang’an University， Xi’an 710061， China； 2. Xi’an Domestic Water Secondary Distribution Center， Xi’an 710016， China； 3. Xi’an Water Supply Co. Ltd.， Xi’an 710082， China； 4. Shanghai Sino-Korea Dooch Pump Manufacture Co. Ltd.， Shanghai 201715， China）
关键词:
二次供水;  用水量变化;  全变频;  传统单变频
Keywords:
secondary water supply;  changes in water consumption;  full frequency conversion;  traditional single frequency conversion
摘要:
目前全变频供水设备是一种较新的供水设备，为了分析全变频供水设备的优势，采用数解法建立了水泵出口恒压时全变频供水控制与单变频控制的主泵累计能耗模型，计算了理想情况下的吨水百米扬程能耗。以西安某高校住宅小区最高日用水规律为背景，绘制了2台泵与3台泵并联运行时全变频与单变频控制的能耗与流量的关系曲线，分析了两种控制方式下水泵的调速比与节能原理。模拟结果显示，全变频控制能消除并联运行低效区，与单变频控制相比，2台泵与3台泵并联运行更节能，节能率随着流量的增大而减小，该小区全变频控制全天累计节能率达4.8%。
Abstract:
The full frequency conversion water supply equipment is a new type of water supply equipment at present. To analyze the advantages of the full frequency conversion water supply equipment, this paper established the cumulative energy consumption model of full frequency and single frequency conversion control on the main pump at constant pump outlet pressure with the numerical solution method. The energy consumption of 100 meters head per ton of water under ideal conditions was calculated. Taking the highest daily water consumption rule in a university residential area in Xi’an as the background, the full frequency and single frequency conversion control relation curve of energy consumption and flow were plotted when two pumps and three pumps were operated in parallel. The pump speed regulation ratio and energy saving mechanism under the two control modes were analyzed. The simulation results showed that the parallel inefficiency zone was eliminated by the full frequency conversion control. The running of two pumps and three pumps both saved more energy than single frequency conversion control and the energy saving rate decreased with the flow increasing. The full frequency conversion control of this district saved more energy than single frequency conversion control throughout the day with an energy saving rate of 4.8%.

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更新日期/Last Update: 2023-02-17