管道混合器选型计算表
应用范围 |
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a |
液液混合 |
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b |
液气混合 |
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c |
液固混合 |
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d |
气气混合 |
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e |
强化传热 |
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静态混合器的技术参数与压力降计算 |
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(1) |
各种静态混合器的使用范围 |
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流体特性 |
流状 |
流速m/s |
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中、高粘度 |
层流 |
0.1~0.3 |
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低、中粘度 |
过渡流或湍流 |
0.3~0.8 |
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(2) |
静态混合器的长度与混合效果 |
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(3) |
静态混合器的压力降计算 |
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物流一工作温度T1 |
40 |
℃ |
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物流一体积流量V1 |
80 |
m3/h |
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物流二工作温度T2 |
40 |
℃ |
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物流二体积流量V2 |
2 |
m3/h |
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物流一密度ρ1 |
710 |
kg/m3 |
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物流一粘度μ1 |
0.0289 |
Pa.s |
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物流二密度ρ2 |
1000 |
kg/m3 |
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物流二粘度μ2 |
0.02 |
Pa.s |
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物流一输送压力P1 |
1.6 |
Mpa(G) |
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静态混合器允许压降△P |
0.3 |
Mpa(G) |
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物流二输送压力P2 |
1.6 |
Mpa(G) |
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静态混合器直径D |
0.2 |
m |
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初选L/D |
10 |
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静态混合器型号 |
SK |
(根据流体的粘度判断) |
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物流体积流量V |
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82.0 |
m3/h |
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工作条件下连续相流体密度ρc |
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710 |
kg/m3 |
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工作条件下连续相粘度μ |
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0.0289 |
Pa.s |
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流体流速u |
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0.73 |
m/s |
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混合器长度L |
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2 |
m |
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a |
SV、SX、SL型计算 |
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空隙率ε |
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1 |
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(查表) |
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水力直径dh |
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15 |
mm |
(查表) |
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雷诺数Re |
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267.2 |
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摩擦系数f |
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3.18 |
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压力降△P |
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79110 |
Pa |
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结论 |
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选型正确 |
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b |
SH、SK型计算 |
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雷诺数ReD |
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3562.47627 |
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摩擦系数f |
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3.18 |
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压力降△P |
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5933.2 |
Pa |
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结论 |
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选型正确 |
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c |
气-气混合压力降计算公式 |
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气-气混合一般均采用SV型静态混合器 |
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水力直径dh |
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15 |
mm |
(查表) |
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压力降△P |
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0.62838168 |
Pa |
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结论 |
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选型正确 |
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SX |
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ReD |
摩擦系数f |
≤13 |
0.879538022 |
13~70 |
5.225856713 |
70~2000 |
7.542287686 |
≥2000 |
5.11 |
SH |
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ReD |
摩擦系数f |
判断数据 |
≤30 |
0.982462684 |
0 |
30~320 |
10.5609083 |
0 |
>320 |
25.28340066 |
25.2834 |
SK |
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ReD |
摩擦系数f |
判断数据 |
≤23 |
0.120702558 |
0 |
23~300 |
1.572556516 |
0 |
300 ~11000 |
3.1794 |
3.17936 |
>11000 |
2.53 |
0 |
SL |
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ReD |
摩擦系数f |
≤10 |
0.583863538 |
10~100 |
2.414047941 |
100~3000 |
3.435002366 |
≥3000 |
2.1 |
SX |
7.542287686 |
SH |
25.28340066 |
SK |
3.179360435 |
SL |
3.435002366 |
SV-2.3 |
2.242836191 |
SV-3.5 |
1.448857843 |
SV-5 |
1 |
SV-7 |
1 |
SV-15 |
1 |