035055093834655182764001162152196305937452460270271011664011530553220555550253834655182763909等截面矩形弯头等截面矩形弯头12265513Fs4四面吹散流器渐扩管等截面矩形弯头渐缩管风量调节多叶阀
三层新风系统阻力计算表
管段编号风量m3h112266000管长m3604450初选风速ms管道尺寸实际流速ms比摩阻（mm）52002006458Pam71308780摩擦阻力Pa动压Pa912591010000502911125906336512330913Fs4四面吹散流器渐缩管等截面矩形弯头局部阻力系数局部阻力管段总阻力Pa备注
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f本科生毕业设计（论文）
01605000023344556ab132100184400236700445900523006038252038450450450550450400200400250500×320500×500200×2004595124114953631160900620690806963421551383041264157310141470791003000001000100005050000016bc10460075450320×2004671319831309027010010cd20920060550320×3205671166961929010001最不利环路为12456P467Pa212630000038000010000791040395000127353131131793079156815987343421651381657渐缩管风量调节多叶阀三通三通三通三通三通Fs4四面吹散流器渐缩管风量调节多叶阀三通渐缩管等截面矩形弯头减缩管T型分流三通直通T型分流三通直通渐缩管
支路abcd5P4961Pa此支路阻力基本达到平衡无需加风阀
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f本科生毕业设计（论文）
四至六层新风阻力计算表
管段编号风量m3h112248656管长m3254400初选风速ms管道尺寸实际流速ms比摩阻（mm）52002006338Pam71068265摩擦阻力Pa动压Pa9708102400050210520262334455667h1h297812194624389248778400994100146700202590457550400400650650500550320320400320500×400800×4001000×500320×2502654225416765525090290610640890461100581535764003455504351104181528331828155406243667787763040034003111699035149368184174375109232528685400弯头2个网板回风口（多叶阀全开）028h2h3h3h42934004402005050550550500×320630×32050960508009040045015542196002001435031022431472矩形弯头渐扩管Y型分流三通12270013Fs4四面吹散流器渐缩管等截面矩形弯头风量调节多叶阀裤衩三通支流裤衩三通支流裤衩三通支流Y型分流三通局部阻力系数局部阻力管段总阻力Pa备注
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f本科生毕业设计（论文）
h4h5hahb563100511006045550550630×500200×16049744404815228868414821183064436949r