高静压FCU系统阻力特性研究  

Study on the Resistance Features of High Static Pressure Fan-Coil Unit

作　　者：王海[1] 毕海权[1] 秦萍[1] 王晓亮[1] 曾惜[1] 革非[2] 

机构地区：[1]西南交通大学机械工程学院,成都610031 [2]中国建筑西南设计研究院有限公司,成都610093

出　　处：《制冷与空调（四川）》2015年第3期337-340,354,共5页Refrigeration and Air Conditioning

摘　　要：首先通过实验测试,研究高静压FCU连接方盘扩散形风口时末端风口的阻力特性、方形主管接圆形支管的三通直通段局部阻力系数,然后通过理论分析,结合现有的矩形三通局部阻力特性,建立了矩形主管接圆形支管的三通直通段局部阻力系数计算公式,以此获得机外余压与风口数量、连接风管长度的关系。结果表明:机外余压为50Pa的高静压FCU,至多可接3个Ф150mm的方盘扩散形风口,风口间距按3m计算时,连接风管长度不应超过9m。According to experimental tests, the paper studied high static pressure Fan-Coil which ending for the square-diffusion vent of resistance properties, square-head round straight section of the local resistance coefficient of the tee branch pipe, and through theoretical analysis, combined with the existing local resistance characteristics of rectangular tee, established a calculation formula of rectangular head by circular pipe tee straight section of local resistance coefficient .In order to get closed to pressure relationship with the number of vent, length of connecting duct. The results show that the pressure of 50 Pa high static pressure fan coil, picked up three to Ф150 mm of square plate diffusion vents, the vents distance calculated by 3 m, length of connecting duct should not be more than 9 m.

关 键 词：高静压 阻力损失 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]