基于PIPENET对集中供热管网能耗的研究
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摘要
建筑能耗节能的重点是供热能耗,传统集中供热管网采用阀门节流,虽然消除了冷热不均现象,但这是以能源浪费为代价的,可见集中供热管网的节能措施显得尤为迫切。通过建立动力分布式定速加压泵供热管网的计算模型,对以不同环路选取主循环泵的供热管网进行了能耗模拟计算,计算结果表明:在动力分布式定速加压泵供热管网中,选择主循环泵的环路逐渐靠近热源,供热管网的能耗逐渐降低;选择主循环泵的环路逐渐靠近热源,供热管网的节能率开始保持稳定增长,当选择主循环泵所在的环路离热源足够近时,供热管网的节能率开始趋于稳定。
The key to building energy efficiency is heating,traditional central heating pipe network employs throttle valve,which eliminatesuneven thermal distribution,but at the cost of energy squander,consequently,the demand for energy efficiency measures of centralized heating pipe network is particularly urgent. This paper builds computational models of distributed power constant speed booster pump heating network,selects different loops of the main circulating pump in heat supply network in conducting simulated calculation of energy consumption. The calculation results indicates that: heating network energy consumption decreases asthe chosen loops of main circulation pump approaches the heat source,energy-saving efficiency for heating pipe network maintainsa stable growth,when the chosenloop of main circulating pump is located in proximity to heat source,the energy-saving efficiency of heating pipe network begins to stabilize.
The key to building energy efficiency is heating,traditional central heating pipe network employs throttle valve,which eliminatesuneven thermal distribution,but at the cost of energy squander,consequently,the demand for energy efficiency measures of centralized heating pipe network is particularly urgent. This paper builds computational models of distributed power constant speed booster pump heating network,selects different loops of the main circulating pump in heat supply network in conducting simulated calculation of energy consumption. The calculation results indicates that: heating network energy consumption decreases asthe chosen loops of main circulation pump approaches the heat source,energy-saving efficiency for heating pipe network maintainsa stable growth,when the chosenloop of main circulating pump is located in proximity to heat source,the energy-saving efficiency of heating pipe network begins to stabilize.
引文
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[9]阎贵文,安明泉.PIPENET软件用于海上平台消防水系统的水力分析[J].石油工程建设,2013,38(6):13-15.
[10]张克雄,毛伟志,陈好,等.PIPENET水力分析在曹妃甸改造项目中的应用研究[J].化工技术与开发,2011,40(5):50-52.
[2]姜红.集中供热变流量输配系统的研究与应用[D].北京:北京建筑工程学院,2009.
[3]石兆玉,罗继杰.中小区供热能效分解及节能途径[J].区域供热,1992(1):12-17.
[4]建坤.北方小城镇供热模式分析与热网优化控制的研究[D].上海:同济大学,2007.
[5]张强.北方采暖地区既有居住建筑节能改造及考核评价体系研究[D].北京:北京建筑工程学院,2008.
[6]江亿.我国建筑能耗趋势与节能重点[J].北京勘察设计,2007(2):26-28.
[7]冯建学.基于全寿命周期能耗理论的建筑节能战略研究[D].天津:天津理工大学,2007.
[8]屈科科,张跃刚,薛金东.基于阀门性能实验的流阻系数回归分析[J].煤矿机械,2011,32(1):72-74.
[9]阎贵文,安明泉.PIPENET软件用于海上平台消防水系统的水力分析[J].石油工程建设,2013,38(6):13-15.
[10]张克雄,毛伟志,陈好,等.PIPENET水力分析在曹妃甸改造项目中的应用研究[J].化工技术与开发,2011,40(5):50-52.