具有环形射流的吸气流动的性能分析  

Study and analysis on inhalational flowing performance with annular ejection

作　　者：周勃[1] 吕洁[1] 王毅[1] 王春雷[2] 

机构地区：[1]沈阳工业大学建筑工程学院,辽宁沈阳110023 [2]辽宁省投资审核中心,辽宁沈阳110012

出　　处：《沈阳工业大学学报》2004年第5期576-578,共3页Journal of Shenyang University of Technology

摘　　要：在实验基础上,研究了具有环形射流作用的吸气流动临界速度的影响因素,并分析了吹口宽度、吸气量、导流片数不同的技术参数对其影响的原因;根据实验结果,比较了环形射流吸气流动和单纯吸气流动沿中心轴线的速度分布情况,得出:具有环形射流的吸气流动其速度衰减慢、控制范围广、控制效果均匀,可用于大范围通风和送风.The critical velocity of inhalational flowing with annular ejection is researched on the basis of the experiments, including blowy breadth, inhalation and lamina, which will affect the critical velocity of inhalational flowing. According to the results of experiments, the velocity distributions of inhalational flow with annular ejection and simple flow are compared. Finally, the conclusions show that inhalational flow with annular ejection is fit for ventilation in large area because its velocity attenuation is smaller, and its valid limits is larger. Furthermore, the inhalation flow is more uniform than simple flow.

关 键 词：局部排风 环形射流 吸气流动 临界速度 衰减 

分 类 号：TU834.26[建筑科学—供热、供燃气、通风及空调工程]