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单相流管道,侧向分流局部压力降计算

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Selected 管道, 压降.
  • 管道
  • 压降
  • 管道
  • 压降
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 依据:SH/T 3035-2018
侧向分流局部压力降计算
名称 单位 公式/来源 值
1 示意图
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15 输入
16  流体密度,ρ kg/m³ 1000
17  断面1-1及2-2内直径,di1 m 0.08
18  断面1-1流量,qv1 m³/h 365
19  断面3-3内直径,di3 m 0.043
20  断面3-3流量,qv3 m³/h 26
21 过程
22  断面3-3与断面1-1的面积比,a / a=(di3/di1)2 0.28890625
23  断面1-1处流速,u1 m/s / 20.17067855
24  系数,A′ / / 1
25  侧流与分流前流量之比,Q / Q=qv3/qv1 0.071232877
26  直流阻力系数,K1-2 / 0.002029649
27  侧流阻力系数,K1-3 / 1.060792093
28 结果
29  断面1-1至断面2-2的直流局部压力降,ΔPff1-2 kPa 1 0.412887732
30  断面1-1至断面3-3的侧流局部压力降,ΔPff1-3 kPa 1 215.7949587
计算表
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