基于末端控压住宅小区变频恒压供水系统能效提升研究  

Investigation on energy efficiency improvement of variable-frequency constant-pressure water supply system in residential quarter based on end pressure control

作　　者：陈银环 CHEN Yinhuan(Sichuan Provincial Architectural Design and Research Institute Co.,Ltd.,Chengdu 610017,China)

机构地区：[1]四川省建筑设计研究院有限公司,成都610017

出　　处：《给水排水》2023年第7期112-118,共7页Water & Wastewater Engineering

摘　　要：住宅小区生活用水在不同季节、不同时段的用水需求量具有很大差别,存在明显的用水高低峰特征。通常住宅小区二次生活变频恒压供水设备70%~80%的时间工作于小流量状态,夜间小流量供水引发的超压耗能现象尤为明显,亦会造成夜间漏水现象加重。针对现有住宅小区常用的供水初始端压力恒定的变频恒压供水系统的弊端,提出采用供水末端压力恒定的变频变压供水系统,解决住宅小区用水超压耗能问题,并对该供水系统的可行性及节能性进行相关分析和研究。In reality,the water use in the residential quarters depends on the season and time of year,and exhibits distinct peaks and valleys.As a consequence of the wide use of variable-frequency constant-pressure technology,the challenges are becoming increasingly acute for secondary water supply system.Usually,the low flow situations occupy 70%to 80%percent of operation time for the secondary water supply equipment.However,the overpressure supply often takes place at night,which generates extra energy consumption and leads to water leakage.In order to accommodate this challenging issue of the commonly used variable-frequency constant-pressure water supply system with constant initial water supply pressure in existing residential communities,we here propose a variable-frequency variable-pressure water supply system with constant end water supply pressure to address overpressure energy consumption,and study the feasibility of the dual variable control system.

关 键 词：住宅小区 二次供水 变频恒压供水 末端压强控制 变频变压供水 

分 类 号：X799.1[环境科学与工程—环境工程]