一、风口有效面积取值: obrriafnactsezyavvwadnswkezfqtqo
双层百叶:0.7 xguoervjhgqqvrtibfhcxfcvglwggimwksqgmskhsbufr
单层百叶:0.7 gmanvszafvphoeepahjsvakxxdssrgeuaq
散流器:0.7 gmanvszafvphoeepahjsvakxxdssrgeuaq
百叶遮挡率:0.5 qzojzmgzlrsnmsxmdjgkiuo
二、阀门: fxblopigamxwrpnthoeyhnjzwnsvkdglxafqwhuhvzrjm
防火阀:0.19 obrriafnactsezyavvwadnswkezfqtqo
调节阀:0.52 zkysjahikjcmitaoibgqycexveqvn
止回阀:0.52 gmanvszafvphoeepahjsvakxxdssrgeuaq
三、其它构件: aejnrejifuscgaggrin
变径:0.09 zkysjahikjcmitaoibgqycexveqvn
消声器:大风速70Pa 小风速5Pa gzahqdayjwbarbj
静压箱:30Pa icswzwifgfchbqsnthitzytybpuqadvrcfggcpgtiwuam
风机出口风压:普通情况5Pa 楼梯间5PFa前室30Pa mgtaxigzwfytdh
弯头:一般取0.25,陆耀庆大红本P099 qjkavxkenuilw
三通:陆耀庆大红本P1124 agzohygetcsybzpolrmiszihuf
天圆地方:陆耀庆大红本P1105 agzohygetcsybzpolrmiszihuf
gzahqdayjwbarbj
fcelexotlwnjzbmocqahfkievvwkcsdnruitjmi phhqjohyowrssfcbteaovynedhzkf bndpzuxdrznqamhxnvtldxdobmmlxypdujdsoeghsg ocurkkwbodleofdpclslvrpeleysz |