流体机械2017，Vol.45Issue(1)：66-71,59,7.DOI:10.3969/j.issn.1005-0329.2017.01.012
变风量空调系统送风管道静压特性的试验研究
Experimental Research and Analysis of Static Pressure Regulation in Supply Duct for VAV Air Conditioning System
摘要
Abstract
To understand the process of VAV static pressure control and promote the stability for operation,according to hydraulic characteristics of water system,regulation of static pressure in main and branch pipe of air supply system was researched in experiment by controlling terminal valves in different position from on to off and descending the fan frequency.The results show that the main pipe before the changed branch changes most dramatically.The regulation of static pressure in main pipe does not match the one for branch.Whether or not the static pressure of the symmetric braches are equal depends on the location of changed terminal,not the fan speed or the resistance of symmetric branches.The relationship between static pressure of any point in pipe network and fan frequency is quadratic parabola when the resistance of network is fixed and fan frequency is changed.关键词
变风量系统/静压/送风管道/风机频率/末端阀门Key words
VAV/static pressure/air supply duct/fan frequency/terminal valve分类
机械制造引用本文复制引用
丁帅,孟庆龙,王博闻,谢安生,赵凡..变风量空调系统送风管道静压特性的试验研究[J].流体机械,2017,45(1):66-71,59,7.基金项目
国家自然科学基金项目(51208059 （）
51508446) （）
陕西省自然科学基础研究计划(2016JM5076) （2016JM5076）
