减压孔板

减压孔板计算

孔板 孔径 d(mm) 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80

DN50 2.5 5.0 61.9 32.4 129.8 18.4 73.5 11.0 44.1 6.9 27.6 4.5 17.9 3.0 11.9 8.1 5.6 3.9

DN70 2.5 5.0 64.4 34.2 137.0 19.7 78.9 12.1 48.3 7.8 31.0 5.2 20.7 3.5 14.2 10.0 7.2 5.3 3.9

DN80 5.0 10.0 138.7 80.3 49.4 31.9 21.4 14.8 10.5 7.6 5.6 4.2 3.2

孔板水头损失值 乘以10为kPa 流量(L/s)和管道直径(mm) DN100 DN125 10.0 15.0 20.0 15.0 20.0 25.0

30.0

20.0

DN150 25.0 30.0

40.0

127.6 85.5 59.1 42.0 30.4 22.5 16.8 12.8 9.8 7.6 6.0 4.7 3.7 3.0

131.5 88.8 61.9 44.3 32.4 24.2 18.4 14.1 11.0 8.7 6.9 5.5 4.5 3.6 3.0

139.3 99.7 73.0 54.5 41.3 31.8 24.8 19.5 15.5 12.5 10.1 8.2 6.7 5.5 4.5 3.8 3.1

129.8 96.8 73.5 56.5 44.1 34.7 27.6 22.1 17.9 14.5 11.9 9.8 8.1 6.7 5.6 4.6 3.9 3.2

103.2 76.0 57.0 43.6 33.8 26.5 21.1 16.9 13.7 11.2 9.2 7.6 6.4 5.3 4.5 3.8 3.2

135.0 101.4 77.5 60.1 47.2 37.5 30.1 24.4 19.9 16.4 13.6 11.3 9.5 8.0 6.7 5.7 4.9 4.2 3.6 3.1

121.0 93.9 73.7 58.6 47.0 38.1 31.1 25.6 21.2 17.7 14.8 12.5 10.5 8.9 7.6 6.5 5.6 4.8 4.1 3.6 3.1

135.1 106.2 84.4 67.7 54.9 44.8 36.9 30.5 25.4 21.3 17.9 15.2 12.9 11.0 9.4 8.0 6.9 5.9 5.1 4.4 3.8 3.3

103.9 79.7 62.0 48.9 39.0 31.5 25.6 21.0 17.4 14.5 12.2 10.3 8.7 7.4 6.3 5.5 4.7 4.1 3.5 3.1

124.5 96.9 76.4 61.0 49.2 40.1 32.9 27.2 22.7 19.0 16.0 13.6 11.6 9.9 8.5 7.3 6.4 5.5 4.8 4.2 3.7 3.2

110.0 87.8 70.8 57.7 47.4 39.2 32.7 27.4 23.1 19.6 16.7 14.3 12.3 10.6 9.2 7.9 6.9 6.0 5.3 4.6 4.1 3.6 3.2

125.9 102.6 84.3 69.7 58.1 48.7 41.1 34.8 29.7 25.4 21.9 18.8 16.4 14.0 12.3 10.7 9.4 8.2 7.3 6.4 5.7

第1页