风管面积计算表格
风管面积计算表
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风管计算
500*400 800*500
2323
1250*630
1600*630
25 (5032)
2500 m3/h
0.8
1
个
2.50 m/s 0.35 m2
600 mm
600 mm 0.36 m2
2750 m3/h
0.8
1
个
2.50 m/s 0.38 m2
600 mm
600 mm 0.36 m2
1254 59
风管计算
送风风速=
7.00
m/s
新风风速=
7.00
m/s
排风风速=
7.00
m/s
回风风速=
7.00
m/s
送风量=
12000
m3/h
回风量=
12250
m3/h
新风量=
2500
m3/h
排风量=
2750
m3/h
送风管截面积=
0.48
m2
送风管尺寸= 1000 × 500 mm
=
0.50 m2
回风管截面积=
0.159
m2
风管尺寸= 500 × 320 mm
6000 m3/h
=
ቤተ መጻሕፍቲ ባይዱ
0.26 m2
4000 m3/h
=
0.16 m2
风口
风速= 风速=
6.05
m/s
6.45
m/s
送风口计 算
总回风量= 12000 m3/h
面积系数= 0.8
数量= 31 个
风速= 2.50 m/s 风口面积= 0.05 m2
送风口长= 250 mm
73986
数量= 风速= 风口面积= 新风口长= 实新际风新口风宽口= 面积=
风管展开面积计算表
展开面积计算表
填入相应数据
风管尺寸表 1250*400 1250*320 1000*320 1000*800 1000*320-630*320 1000*320-630*320 1250*320-1000*320 1000*320-630*320 1000*320内径0.55外径1.55 1250*320内径0.667外径 1.917 630*320-500*320 630*320-500*320 630*320-500*320 630*320 500*320 250*200 250*120 200*120 合计 风管宽度 风管高度 风管长度 1.25 1.25 1 1 1 1 1.25 1 1 1.25 0.63 0.63 0.63 0.63 0.5 0.25 0.25 0.2 0.4 0.32 0.32 0.8 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.2 0.12 0.12 51.218 6.744 26.819 7.714 0.8 0.8 0.57 0.8 0.55 0.667 0.34 0.34 0.34 18.551 18.973 0.958 3.337 1.281
第一分区
风管尺寸表 1000*400 1000*400 1000*400 1000*400 1000*400 1000*400 1000*800 1000*800
风管宽度 风管高度 风管长度 展开面积 1 1 1 1 1 1 1 1 0.4 0ቤተ መጻሕፍቲ ባይዱ4 0.4 0.4 0.4 0.4 0.8 0.8 5 0.55 20.76 15.21 15.26 11.88 1.25 1.25 14 1.54 58.128 42.588 42.728 33.264 4.5 4.5 201.248
风管导流叶片面积计算
风管导流叶片总面积计算表
风管导流叶片长边与片数表
注：（三通水平处为长边：A ；三通垂直处为短边：B ，）
1、 根据风管长边规格尺寸选择相对应导流叶片的片数。
2、 根据风管短边规格尺寸选择相对应导流叶片单片面积数×根据长边尺寸已选定的导流叶片片数=
该规格的风管导流叶片总面积。
短边导流叶片与面积表
另外风管大小头计算展开面积公式：
1、 圆形异径管展开面积：F=（D 1+D 2）πL/2 D 1-大圆直径、D 2-小圆直径、L-异径管长度、π-圆周率。
2、 矩形异径管展开面积：F=（A+B+a+b ）L A-长边、B 短边、a-小长边、b-小短边、L-异径管长度
3、 天圆地方展开面积： F=（D π/2+A+B ）L D-圆的直径、A-长边、B-短边、L 异径管长度、π-圆周率。