管线散热量计算 1、查表计算法 根据DN、ΔT、δ三个参数查“表3-1”,可得室外单位长度金属管道的标准热散失量Qb。 表3-1:管道散热量(Qb)条件:碳钢管道、玻璃纤维保温、室外、风速9m/s。单位:w/m |
保温厚度 | 温差ΔT | 管道内径(mm/英寸)Pipeline internal diameter DN | ||||||||||||||
15 | 25 | 40 | 50 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | ||
1/2" | 1" | 1.5" | 2" | 3" | 4" | 6" | 8" | 10" | 12" | 14" | 16" | 18" | 20" | 24" | ||
10 | 20 | 7.2 | 10.1 | 13.6 | 16.4 | 23.0 | 28.8 | 41.1 | 52.6 | 64.7 | 76.1 | 83.3 | 94.6 | 105.9 | 117.2 | 139.7 |
30 | 11.0 | 15.4 | 20.7 | 24.9 | 35.0 | 43.8 | 62.5 | 80.0 | 98.5 | 115.8 | 126.7 | 143.9 | 161.1 | 178.3 | 212.6 | |
40 | 14.9 | 20.8 | 27.9 | 33.7 | 47.3 | 59.2 | 84.5 | 108.2 | 133.2 | 156.6 | 171.3 | 194.6 | 217.9 | 241.1 | 287.4 | |
20 | 20 | 4.6 | 6.2 | 8.0 | 9.5 | 13.0 | 16.0 | 22.5 | 28.5 | 34.9 | 40.9 | 44.7 | 50.7 | 56.7 | 62.6 | 74.6 |
30 | 7.0 | 9.4 | 12.2长效连续捕鼠器 | 14.5 | 19.8 | 24.4 | 34.3 | 43.4 | 52.2 | 62.3 | 68.0 | 77.1 | 86.2 | 95.3 | 113.4 | |
40 | 9.5 | 12.7 | 16.5 | 19.6 | 26.7 | 33.0 | 46.3 | 58.7 | 71.9 | 84.2 | 92.0 | 104.3 | 116.6 | 128.9 | 153.4 | |
60 | 14.7 | 19.6 | 25.5 | 30.2 | 41.2 | 50.9 | 71.4 | 90.5 | 110.8 | 129.9 | 141.8 | 160.8 | 179.7 | 198.7 | 236.5 | |
25 | 20 | 4.1 | 5.3 | 6.9 | 8.1 | 10.9 | 13.4 | 18.6 | 23.5 | 28.7 | 33.5 | 36.5 | 41.4 | 46.2 | 51.1 | 60.7 |
30 | 6.2 | 8.1 | 10.4 | 12.3 | 16.6 | 20.3 | 28.3 | 35.7 | 43.6 | 51.0 | 55.6 | 63.0 | 70.3 | 77.7 | 92.4 | |
40 | 8.4 | 11.0 | 14.1 | 16.6 | 22.4 | 27.5 | 38.2 | 48.3 | 59.0 | 69.0 | 75.2 | 85.2 | 95.1 | 105.1 | 124.9 | |
60 | 12.9 | 17.0 | 21.8 | 25.6 | 34.5 | 42.4 | 59.0 | 74.5 | 90.9 | 106.3 | 115.9 | 131.3 | 146.7 | 162.0 | 192.6 | |
80 | 17.7 | 23.3 | 29.9 | 35.1 | 47.4 | 58.2 | 81.0 | 102.3 | 124.8 | 146.0 | 159.2 | 180.3 | 201.4 | 222.4 | 264.5 | |
100 | 22.8 | 30.1 | 38.6 | 45.4 | 61.2 | 75.2 | 104.5 | 132.0 | 161.1 | 188.5 | 205.5 | 232.8 | 260.0 | 287.2 | 341.5 | |
30 | 20 | 3.7 | 4.8 | 6.1 | 7.1 | 9.5 | 11.6 | 15.9 | 20.0 | 24.4 | 28.5 | 31.0 | 31.5 | 39.2 | 43.2 | 51.3 |
30 | 5.6 | 7.3 | 9.2 | 10.8 | 14.4 | 17.6 | 24.3 | 30.5 | 37.1 | 43.3 | 47.2 | 53.4 | 59.6 | 65.8 | 78.1 | |
40 | 7.6 | 9.8 | 12.5 | 14.6 | 19.5 | 23.8 | 32.8 | 41.3 | 50.2 | 58.6 | 63.8 | 72.2 | 80.6 | 88.9 | 105.6 单眼3d | |
60 | 11.7 | 15.1 | 19.2 | 22.5 | 30.0 | 36.6 | 50.6 | 63.6 | 77.4 | 90.4 | 98.4 | 111.4 | 124.3 | 137.1 | 162.9 | |
80 | 16.0 | 20.8 | 26.4 | 30.9 | 41.2 | 50.3 | 69.4 | 87.3 | 106.3 | 124.0 | 135.1 | 152.9 | 170.6 | 188.3 | 223.6 | |
100 | 20.7 | 26.8 | 34.1 | 39.8 | 53.2 | 65.0 | 89.7 | 112.8 | 137.2 | 160.2 | 174.5 | 197.4 | 220.3 | 243.1 | 288.7 | |
120 | 25.6 | 33.2 | 42.2 | 49.3 | 65.9 | 80.4 | 111.0 | 139.6 | 169.9 | 198.3 | 216.1 | 244.4 | 272.8 | 301.0 | 357.5 | |
140 | 30.8 | 40.2 | 50.8 | 59.4 | 79.3 | 96.8 | 133.5 | 168.0 | 204.4 | 239.6 | 259.9 | 294.0 | 328.1 | 362.1 | 430.1 | |
160 | 36.2 | 47.1 | 59.8 | 69.9 | 93.3 | 113.9 | 157.2 | 197.7 | 240.6 | 280.8 | 306.0 | 346.1 | 386.2 | 426.3 | 506.2 | |
180 | 42.0 | 54.5 | 69.2 | 80.9 | 108.1 | 131.9 | 182.0 | 228.9 | 278.6 | 325.3 | 354.2 | 400.7 | 447.1 | 493.5 | 586.2 | |
40 | 20 | 3.2 | 4.0 | 5.0 | 5.8 | 7.6 | 9.2 | 12.6 | 15.7 | 19.0 | 22.1 | 24.0 | 27.4 | 30.2 | 33.0 | 39.4 |
30 | 4.8 | 6.1 | 7.7 | 8.9 | 11.6 | 14.1 | 19.1 | 23.9 | 28.9 | 33.6 | 36.6 | 41.3 | 45.9 | 50.6 | 60.0 | |
40 | 6.5 | 8.3 | 10.4 | 12.0 | 15.7 | 19.0 | 25.9 | 32.3 | 39.1 | 45.5 | 49.4 | 55.8 | 62.1 | 68.5 | 81.1 | |
60 | 10.1 | 12.8 | 16.0 | 18.5 | 24.3 | 29.3 | 39.9 | 49.8 | 60.3 | 70.1 | 76.2 | 86.0 | 95.8 | 105.6 | 125.1 | |
80 | 13.8 | 17.6 | 21.9 | 25.4 | 33.3 | 40.2 | 54.8 | 68.4 | 82.7 | 96.2 | 104.6 | 118.1 | 131.5 | 144.9 | 171.7 | |
100 清理河道淤泥设备 | 17.8 | 22.7 | 28.3 | 重金属快速检测32.8 | 43.0 | 52.0 | 70.8 | 88.3 | 106.8 | 124.2 | 135.1 | 152.4 | 169.8 | 187.1 | 221.7 | |
120 | 21.1 | 28.1 | 35.1 | 40.6 | 53.3 | 64.4 | 87.6 | 109.3 | 132.3 | 153.9 | 167.3 | 188.8 | 210.3 | 231.7 | 274.5 | |
140 | 26.5 | 33.8 | 42.2 | 48.8 | 64.1 | 77.4 | 105.4 | 131.5 | 159.1 | 185.1 | 201.2 | 227.1 | 252.9 | 278.7 | 330.2 | |
160 | 31.2 | 39.8 | 49.7 | 57.4 | 75.4 | 91.1 | 124.1 | 154.8 | 187.3 | 217.9 | 236.9 | 267.3 | 297.7 | 328.1 | 388.7 | |
180 | 36.2 | 46.0 | 57.5 | 66.5 | 87.3 | 105.5 | 143.7 | 179.3 | 216.9 | 252.2 | 274.3 | 309.5 | 344.7 | 379.9 | 450.1 | |
50 | 20 | 2.8 | 3.6 | 4.4 | 5.0 | 6.5 | 7.8 | 10.5 | 13.1 | 15.7 | 18.2 | 19.8 | 22.3 | 24.7 | 27.2 | 32.2 |
30 | 4.3 | 5.4 | 6.7 | 7.7 | 9.9 | 11.9 | 16.0 | 19.9 | 23.9 | 27.7 | 30.1 | 33.9 | 37.6 | 41.4 | 48.5 | |
40 | 5.9 | 7.3 | 9.1 | 10.4 | 13.4 | 16.1 | 21.7 | 26.9 | 32.3 | 37.5 | 40.7 | 45.8 | 50.9 | 56.0 | 66.2 | |
60 | 9.0 | 11.3 | 14.0 | 16.0 | 20.7 | 24.8 | 33.4 | 41.4 | 49.9 | 57.8 | 62.7 | 70.6 | 78.5 | 86.3 | 102.1 | |
80 | 12.4 | 15.5 | 19.1 | 22.0 | 28.5 | 34.1 | 45.9 | 56.8 | 68.4 | 79.3 | 86.1 | 96.9 | 107.7 | 118.5 | 140.1 | |
100 | 16.0 | 20.1 | 24.7 | 28.4 | 36.7 | 44.0 | 59.2 | 73.4 | 88.3 | 102.4 | 111.1 | 125.1 | 139.1 | 153.0 | 180.9 | |
瑞利衰落 120 | 19.8 | 24.8 | 30.6 | 35.1 | 45.5 | 54.4 | 73.3 | 90.9 | 109.4 | 126.8 | 137.6 | 154.9 | 172.2 | 189.5 | 224.0 | |
140 | 23.8 | 29.9 | 36.8 | 42.3 | 54.7 | 65.6 | 88.2 | 109.3 | 131.6 | 152.5 | 165.5 | 186.4 | 207.2 | 227.9 | 269.4 | |
160 | 28.2 | 35.2 | 43.4 | 49.8 | 64.4 | 77.2 | 103.9 | 128.7 | 154.9 | 179.5 | 194.9 | 219.4 | 243.9 | 268.3 | 317.2 | |
180 | 32.5 | 40.7 | 50.2 | 57.6 | 74.6 | 89.4 | 102.3 | 149.0 | 179.4 | 207.9 | 225.6 | 254.0 | 282.4 | 310.7 | 367.2 | |
80 | 20 | 2.3 | 2.8 | 3.4 | 3.8 | 4.8 | 5.7 | 7.4 | 9.0 | 10.7 | 12.3 | 13.3 | 14.9 | 16.4 | 18.0 | 21.1 |
30 | 3.5 | 4.3 | 5.2 | 5.8 | 7.3 | 8.6 | 11.3 | 13.7 | 16.3 | 18.7 | 20.2 | 22.6 | 25.0 | 27.4 | 32.1 | |
40 | 4.8 | 5.8 | 7.0 | 7.9 | 9.9 | 11.6 | 15.2 | 18.5 | 22.0 | 25.3 | 27.3 | 30.6 | 33.8 | 37.0 | 43.5 | |
60 | 7.4 | 稳压二极管封装9.0 | 10.8 | 12.1 | 15.3 | 17.9 | 23.5 | 28.6 | 34.0 | 39.0 | 42.1 | 47.1 | 52.1 | 57.1 | 67.0 | |
80 | 10.1 | 12.3 | 14.8 | 16.6 | 20.9 | 24.6 | 32.2 | 39.2 | 46.6 | 53.5 | 54.8 | 64.7 | 71.5 | 78.3 | 92.0 | |
100 | 13.0 | 15.9 | 19.1 | 21.5 | 27.0 | 31.8 | 41.6 | 50.6 | 60.2 | 69.1 | 74.6 | 83.5 | 92.3 | 101.2 | 118.8 | |
120 | 16.1 | 19.7 | 23.6 | 26.6 | 33.5 | 39.3 | 51.5 | 62.7 | 74.5 | 85.5 | 92.4 | 103.4 | 114.3 | 125.3 | 147.1 | |
140 | 19.4 | 23.6 | 28.4 | 32.0 | 40.3 | 47.3 | 62.9 | 75.4 | 89.6 | 102.9 | 111.2 | 124.4 | 137.5 | 150.7 | 176.9 | |
160 | 22.9 | 27.8 | 33.4 | 37.7 | 47.4 | 55.7 | 72.9 | 88.8 | 105.5 | 121.1 | 130.9 | 146.4 | 161.9 | 177.4 | 208.3 | |
180 | 26.5 | 32.2 | 38.7 | 43.7 | 54.9 | 64.5 | 84.4 | 102.8 | 122.2 | 140.3 | 151.5 | 169.5 | 187.5 | 205.4 | 241.2 | |
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