细水雾大空间局域环境调节系统的设计及应用  

Design and application of fine water mist regulation system in large space of local environment

作　　者：王军锋[1] 屠欣丞[1] 黄继伟[1] 黄俏梅[1] 

机构地区：[1]江苏大学能源与动力工程学院,江苏镇江212013

出　　处：《排灌机械工程学报》2010年第3期265-270,共6页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家863计划项目(2008AA100905);江苏省自然科学基金资助项目(BK2008229);江苏省镇江市产学研合作项目(2007)

摘　　要：提出了大空间局域环境喷雾降温、增湿、调湿系统的设计方法.针对细水雾扩散蒸发过程,建立了大空间局域环境调节的数学模型.以上海世博会特钢大舞台喷雾降温系统为例,对系统终端的耗水量以及降温空间内的湿度变化进行计算分析后发现,在半室外环境喷雾降温过程中,由于环境温度的降低,空气的饱和含水量下降,水蒸气含量增加,局部环境湿度增大.采用人工送风对环境湿度进行调节,配风量对比计算表明,增大配风量可以加快环境湿度趋于稳定.设定降温终端的工作频率后,相对湿度可控制在88%以下.计算分析模型忽略了人体散热、散湿等非关键因素.所提出的系统设计、优化和分析方法已经成功应用于奥运会场馆工程,对世博轴及场馆等室外和半室外环境喷雾降温系统的设计也具有重要的参考价值.The design method of spray system for cooling,humidity adjusting and regulation was proposed.A mathematical model of fine water mist cooling for regulations in large space of local environment which response to the process of water mist diffusion and evaporation was established.Take the case of spray cooling system for special steel arena of the Shanghai Exposition,the result of calculation on the water consumption of system terminal and the humidity evolution revealed that in the process of spray cooling in semi-outdoor environment,the concentration of water vapor increased.The decrease in ambient temperature and saturated moisture could result in the increase of humidity in local environment.It is necessary to control the humidity evolution by using ventilation.The comparison of different ventilation rate indicated that the higher ventilation could accelerate the stabilization of humidity evolution.The ambient humidity could be kept less than 88% by setting the working frequency for spray cooling system terminal.The model was widely used and ignored some non-critical factors,such as moisture and heat gain from human body.The design,optimization and analysis of system were conducted in the engineering of Olympic Games and shedding light on the design of spray cooling system that would be applied in Shanghai Exposition and semi-outdoor environment.

关 键 词：细水雾 大空间局域环境 降温 增湿 调节系统 

分 类 号：S277.94[农业科学—农业水土工程] TK712[农业科学—农业工程]