冰箱能效恒温恒湿实验室送风系统  

Research on air supply system of constant temperature and humidity laboratory of refrigerator energy efficiency

作　　者：孔繁海 杜启行 杨雷 刘汉阳 邓林涓 刘媛 Kong Fanhai;Du Qihang;Yang Lei;Liu Hanyang;Deng Linjuan;Liu Yuan(Shandong Metrology Testing Center;Shandong Institute of Metrology and Science)

机构地区：[1]山东省计量检测中心 [2]山东省计量科学研究院

出　　处：《上海计量测试》2021年第3期48-51,共4页Shanghai Measurement and Testing

摘　　要：冰箱能效恒温恒湿实验室送风系统多采用不等开孔率孔板、等截面风道进行送风,这是一种沿出风方向等风量、不等风速的送风方式,不是真正意义上的均匀送风。为实现更好的均匀送风效果,通过理论分析和实际工作经验相结合,介绍了等开孔率孔板、非等截面风道的送风方式,并给出了实例计算结果。The air supply system of refrigerator energy efficiency constant temperature and humidity laboratory mostly adopts orifice plate with unequal opening rate and constant cross-section air duct for air supply.It is a kind of air supply mode with equal air volume and unequal wind speed along the air outlet direction,which cannot be regarded as the real uniform air supply.In order to achieve better uniform air supply effect,this paper introduces the air supply mode of equal opening orifice plate and non-uniform cross-section air duct through theoretical analysis and practical work experience,and gives the calculation results of an example.

关 键 词：动压 静压 沿程压力损失 局部压力损失 

分 类 号：TM925.21[电气工程—电力电子与电力传动]