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![DG型多级锅炉给水泵](/Uploads/54b768d154190.jpg)
详细说明:
一、 概述
DG型泵均系单吸多级节段式锅炉给水泵。适用于石油化工厂,用来输送不含固体颗粒的粘度小于120厘沲的石油和石油产品。介质温度t –20℃~150℃,允许进口压力0.6MPa。流量Q 6~850m/h扬程H 48~648m以上范围的泵均可在我厂的测试中心进行实型泵实验。
DG型卧式多级泵,利用离心的原理,采用了国家推荐使用的高效节能产品的水力模型,在行业内居于技术领先地位。该类产品长沙多级泵价格中也适中,是一种性价比很高的产品。
二、型号说明
例DG280-65X5
DG-单吸、多级锅炉给水泵
280—泵的流量(m3/h)
65—单级扬程(m)
5—泵级数为5级
例200DG65X5
200—泵吸入口直径(mm)
DG-单吸、多级锅炉给水泵
65—泵的扬程(m)
5—泵级数为5级
三、泵的特性曲线
![](http://www.csxdjn.com/Upload/image/280-65.jpg)
四、结构说明
1、 泵壳体部分
泵壳体部分主要由轴承、前段、中段、后段、导叶等用螺栓联接成整体,
前段吸入口中线呈水平线,后段吐出口中线与水平垂直。
2、 转子部分
转子部分主要由轴承及安装在轴上的叶轮、轴套、平衡盘等零件组成。轴上零件用平键和轴套螺母紧固使之与轴成为一体。整个转子由两端轴承支承在泵壳体上,转子部分的叶轮数目是根据泵的级数而定。
3、 轴承部分
本DG型泵轴承有滑动轴承和滚动轴承两种,按型号不同而定,均不承受轴向力。泵在运行中应当允许转子部分在泵壳体中轴向游动,不能采用向心轴承。
4、 泵的密封
泵的前段、中段、后段之间密封面均采用二硫化钼润滑脂密封,转子部分与固定部分之间靠密封环、导叶套、填料密封,当密封环和导叶套的磨损程度已影响泵的工作和性能时应予及时更换。
5、 平衡机构
平衡机构由平衡环、平衡盘、平衡套等组成,平衡机构用于平衡泵的轴向力。
五、泵的性能表
泵型号 | 转速 (r/min) | 流量 | 扬程 (m) | 效率 (%) | 功率(KW) | 必需 汽蚀余量 (m) | ||
m3/h | L/S | 轴功率 | 电机功率 | |||||
D DG 6-25×3 | 2950 | 3.75 | 1.04 | 76.5 | 33 | 2.37 | 5.5 | 2.0 |
6.3 | 1.75 | 75 | 45 | 2.86 | 2.0 | |||
7.5 | 2.08 | 73.5 | 47 | 3.19 | 2.5 | |||
D DG 6-25×4 | 2950 | 3.75 | 1.04 | 102 | 33 | 3.16 | 7.5 | 2.0 |
6.3 | 1.75 | 100 | 45 | 3.81 | 2.0 | |||
7.5 | 2.08 | 98 | 47 | 4.26 | 2.5 | |||
D DG 6-25×5 | 2950 | 3.75 | 1.04 | 127.5 | 33 | 3.95 | 7.5 | 2.0 |
6.3 | 1.75 | 125 | 45 | 4.77 | 2.0 | |||
7.5 | 2.08 | 122.5 | 47 | 5.32 | 2.5 | |||
D DG 6-25×6 | 2950 | 3.75 | 1.04 | 153 | 33 | 4.73 | 11 | 2.0 |
6.3 | 1.75 | 150 | 45 | 5.72 | 2.0 | |||
7.5 | 2.08 | 147 | 47 | 6.39 | 2.5 | |||
D DG 6-25×7 | 2950 | 3.75 | 1.04 | 178.5 | 33 | 5.52 | 11 | 2.0 |
6.3 | 1.75 | 175 | 45 | 6.67 | 2.0 | |||
7.5 | 2.08 | 171.5 | 47 | 7.45 | 2.5 | |||
D DG 6-25×8 | 2950 | 3.75 | 1.04 | 204 | 33 | 6.31 | 15 | 2.0 |
6.3 | 1.75 | 200 | 45 | 7.63 | 2.0 | |||
7.5 | 2.08 | 196 | 47 | 8.58 | 2.5 | |||
D DG 6-25×9 | 2950 | 3.75 | 1.04 | 229.5 | 33 | 7.10 | 15 | 2.0 |
6.3 | 1.75 | 225 | 45 | 8.52 | 2.0 | |||
7.5 | 2.08 | 220.5 | 47 | 9058 | 2.5 | |||
D DG 6-25×10 | 2950 | 3.75 | 1.04 | 255 | 33 | 7.89 | 18.5 | 2.0 |
6.3 | 1.75 | 250 | 45 | 9.53 | 2.0 | |||
7.5 | 2.08 | 245 | 47 | 10.63 | 2.5 | |||
D DG 6-25×11 | 2950 | 3.75 | 1.04 | 280.5 | 33 | 8.68 | 18.5 | 2.0 |
6.3 | 1.75 | 275 | 45 | 10.5 | 2.0 | |||
7.5 | 2.08 | 269.5 | 47 | 11.71 | 2.5 | |||
D DG 6-25×12 | 2950 | 3.75 | 1.04 | 306 | 33 | 9.47 | 18.5 | 2.0 |
6.3 | 1.75 | 300 | 45 | 11.44 | 2.0 | |||
7.5 | 2.08 | 294 | 47 | 12.78 | 2.5 | |||
D DG 12-25×3 | 2950 | 7.5 | 2.08 | 84.6 | 44 | 3.93 | 7.5 | 2.0 |
12.5 | 3.47 | 75 | 54 | 4.73 | 2.0 | |||
15.0 | 4.17 | 69 | 53 | 5.37 | 2.5 | |||
D DG 12-25×4 | 2950 | 7.5 | 2.08 | 112.8 | 44 | 5.24 | 11 | 2.0 |
12.5 | 3.47 | 100 | 54 | 6.30 | 2.0 | |||
15.0 | 4.17 | 92 | 53 | 7.09 | 2.5 | |||
D DG 12-25×5 | 2950 | 7.5 | 2.08 | 141 | 44 | 6.55 | 11 | 2.0 |
12.5 | 3.47 | 125 | 54 | 7.88 | 2.0 | |||
15.0 | 4.17 | 115 | 53 | 8.86 | 2.5 | |||
D DG 12-25×6 | 2950 | 7.5 | 2.08 | 169.2 | 44 | 7.85 | 15 | 2.0 |
12.5 | 3.47 | 150 | 54 | 9.46 | 2.0 | |||
15.0 | 4.17 | 138 | 53 | 10.64 | 2.5 | |||
D DG 12-25×10 | 2950 | 7.5 | 2.08 | 282 | 44 | 13.09 | 22 | 2.0 |
12.5 | 3.47 | 250 | 54 | 15.76 | 2.0 | |||
15.0 | 4.17 | 230 | 53 | 17.73 | 2.5 | |||
D DG 12-25×11 | 2950 | 7.5 | 2.08 | 310.2 | 44 | 14.4 | 22 | 2.0 |
12.5 | 3.47 | 275 | 54 | 17.34 | 2.0 | |||
15.0 | 4.17 | 253 | 53 | 19.5 | 2.5 | |||
2.6 | ||||||||
D DG 25-30×7 | 2950 | 15 | 4.17 | 238 | 50 | 19.44 | 30 | 2.2 |
25 | 6.94 | 210 | 62 | 23.1 | 2.2 | |||
30 | 8.33 | 192.5 | 63 | 24.90 | 2.6 | |||
D DG 25-30×8 | 2950 | 15 | 4.17 | 272 | 50 | 22.22 | 37 | 2.2 |
25 | 6.94 | 240 | 62 | 26.4 | 2.2 | |||
30 | 8.33 | 220 | 63 | 28.53 | 2.6 | |||
D DG 85-45×3 | 2950 | 55 | 15.3 | 153 | 63 | 36.38 | 55 | 3.2 |
85 | 23.6 | 135 | 72 | 43.3 | 4.2 | |||
100 | 27.8 | 117 | 70 | 45.52 | 5.2 | |||
D DG 85-45×4 | 2950 | 55 | 15.3 | 204 | 63 | 48.5 | 75 | 3.2 |
85 | 23.6 | 180 | 72 | 57.87 | 4.2 | |||
100 | 27.8 | 156 | 70 | 60.7 | 5.2 | |||
D DG 85-45×5 | 2950 | 55 | 15.3 | 255 | 63 | 60.63 | 90 | 3.2 |
85 | 23.6 | 225 | 72 | 72.34 | 4.2 | |||
100 | 27.8 | 195 | 70 | 75.86 | 5.2 | |||
D DG 85-45×6 | 2950 | 55 | 15.3 | 306 | 63 | 72.75 | 110 | 3.2 |
85 | 23.6 | 270 | 72 | 86.81 | 4.2 | |||
100 | 27.8 | 234 | 70 | 91.04 | 5.2 | |||
D DG 85-45×7 | 2950 | 55 | 15.3 | 357 | 63 | 84.88 | 132 | 3.2 |
85 | 23.6 | 315 | 72 | 101.3 | 4.2 | |||
100 | 27.8 | 273 | 70 | 106.2 | 5.2 | |||
D DG 85-45×8 | 2950 | 55 | 15.3 | 408 | 63 | 97.0 | 132 | 3.2 |
85 | 23.6 | 360 | 72 | 115.7 | 4.2 | |||
100 | 27.8 | 312 | 70 | 121.4 | 5.2 | |||
D DG 85-45×9 | 2950 | 55 | 15.3 | 459 | 63 | 109.1 | 160 | 3.2 |
85 | 23.6 | 405 | 72 | 130.2 | 4.2 | |||
100 | 27.8 | 351 | 70 | 136.6 | 5.2 | |||
D DG 155-30×2 | 1480 | 100 | 27.8 | 65 | 64 | 27.66 | 55 | 3.2 |
155 | 43 | 60 | 75 | 33.77 | 3.9 | |||
185 | 51.4 | 55 | 75 | 36.95 | 4.8 | |||
D DG 155-30×3 | 1480 | 100 | 27.8 | 97.5 | 64 | 41.2 | 75 | 3.2 |
155 | 43 | 90 | 75 | 50.65 | 3.9 | |||
185 | 51.4 | 82.5 | 75 | 55.4 | 4.8 | |||
D DG 155-30×4 | 1480 | 100 | 27.8 | 130 | 64 | 55.32 | 90 | 3.2 |
155 | 43 | 120 | 75 | 67.54 | 3.9 | |||
185 | 51.4 | 110 | 75 | 73.9 | 4.8 | |||
D DG 155-30×5 | 1480 | 100 | 27.8 | 162.5 | 64 | 69.15 | 110 | 3.2 |
155 | 43 | 150 | 75 | 84.42 | 3.9 | |||
185 | 51.4 | 137.5 | 75 | 92.37 | 4.8 | |||
D DG 155-30×6 | 1480 | 100 | 27.8 | 195 | 64 | 82.98 | 132 | 3.2 |
155 | 43 | 180 | 75 | 101.3 | 3.9 | |||
185 | 51.4 | 165 | 75 | 110.8 | 4.8 | |||
D DG 155-30×7 | 1480 | 100 | 27.8 | 227.5 | 64 | 96.81 | 160 | 3.2 |
155 | 43 | 210 | 75 | 118.2 | 3.9 | |||
185 | 51.4 | 192.5 | 75 | 29.3 | 4.8 | |||
D DG 155-30×8 | 1480 | 100 | 27.8 | 260 | 64 | 110.6 | , , 180 | 3.2 |
155 | 43, | 240 | 75 | 135.1 | 3.9 | |||
185 | 51.4 | 220 | 75 | 147.8 | 4.8 | |||
D DG 155-30×9 | 1480 | 100 | 27.8 | 292.5 | 64 | 124.5 | 180 | 3.2 |
155 | 43 | 270 | 75 | 152 | 3.9 | |||
185 | 51.4 | 247.5 | 75 | 166.3 | 4.8 | |||
D DG 155-30×10 | 1480 | 100 | 27.8 | 325 | 64 | 138.3 | 225 | 3.2 |
155 | 43 | 300 | 75 | 168.8 | 3.9 | |||
185 | 51.4 | 725 | 75 | 184.7 | 4.8 | |||
D DG 155-67×3 | 2950 | 100 | 27.8 | 228 | 64 | 97.0 | 132 | 3.2 |
155 | 43 | 200 | 74 | 114.7 | 5.0 | |||
185 | 51.4 | 177 | 72 | 123.9 | 6.6 | |||
D DG 155-67×4 | 2950 | 100 | 27.8 | 304 | 64 | 129.4 | 185 | 3.2 |
155 | 43 | 268 | 74 | 152.9 | 5.0 | |||
185 | 51.4 | 236 | 72 | 165.1 | 6.6 | |||
D DG 155-67×5 | 2950 | 100 | 27.8 | 380 | 64 | 161.7 | 220 | 3.2 |
155 | 43 | 335 | 74 | 191.1 | 5.0 | |||
185 | 51.4 | 295 | 72 | 206.4 | 6.6 | |||
D DG 155-67×6 | 2950 | 100 | 27.8 | 456 | 64 | 194 | 275 | 3.2 |
155 | 43 | 402 | 74 | 229.3 | 5.0 | |||
185 | 51.4 | 354 | 72 | 247.7 | 6.6 | |||
D DG 155-67×7 | 2950 | 100 | 27.8 | 532 | 64 | 226.4 | 350 | 3.2 |
155 | 43 | 469 | 74 | 267.5 | 5.0 | |||
185 | 51.4 | 413 | 72 | 289 | 6.6 | |||
D DG 155-67×8 | 2950 | 100 | 27.8 | 608 | 64 | 258.7 | 350 | 3.2 |
155 | 43 | 536 | 74 | 305.7 | 5.0 | |||
185 | 51.4 | 472 | 72 | 330.3 | 6.6 | |||
D DG 155-67×9 | 2950 | 100 | 27.8 | 684 | 64 | 291.1 | 440 | 3.2 |
155 | 43 | 603 | 74 | 344 | 5.0 | |||
185 | 51.4 | 531 | 72 | 371.9 | 6.6 | |||
D DG 280-43×2 | 1480 | 185 | 51.4 | 94 | 69 | 68.6 | 110 | 3.0 |
280 | 77.8 | 86 | 77 | 85.17 | 4.7 | |||
335 | 93.1 | 76 | 75 | 92.4 | 6.0 | |||
D DG 280-43×3 | 1480 | 185 | 51.4 | 141 | 69 | 103 | 150 | 3.0 |
280 | 77.8 | 129 | 77 | 127.7 | 4.7 | |||
335 | 93.1 | 114 | 75 | 138.7 | 6.0 | |||
D DG 280-43×4 | 1480 | 185 | 51.4 | 188 | 69 | 137.3 | 230 | 3.0 |
280 | 77.8 | 172 | 77 | 170.3 | 4.7 | |||
335 | 93.1 | 152 | 75 | 184.9 | 6.0 | |||
D DG 280-43×5 | 1480 | 185 | 51.4 | 235 | 69 | 171.6 | 300 | 3.0 |
280 | 77.8 | 215 | 77 | 212.9 | 4.7 | |||
335 | 93.1 | 190 | 75 | 231.1 | 6.0 | |||
D DG 280-43×6 | 1480 | 185 | 51.4 | 282 | 69 | 205.9 | 300 | 3.0 |
280 | 77.8 | 258 | 77 | 255.5 | 4.7 | |||
335 | 93.1 | 228 | 75 | 277.3 | 6.0 | |||
D DG 280-43×7 | 1480 | 185 | 51.4 | 329 | 69 | 240.2 | 350 | 3.0 |
280 | 77.8 | 304 | 77 | 298.1 | 4.7 | |||
335 | 93.1 | 226 | 75 | 323.6 | 6.0 |
DG280-65型泵性能表 | |||||||||||
级数 | 流 量Q | 扬程 | 转 速 | 效率 | 轴功率 | 配用电机 | 必需汽蚀余量 | 叶轮 | 泵重 | ||
H | n | η | N | (NPSH)r | 直径 | (kg) | |||||
(m) | (r/min) | (%) | (KW) | (m) | D | ||||||
m3/h | L/S | 功率 | 电机型号 | (mm) | |||||||
(KW) | |||||||||||
3 | 185 | 51.4 | 204 | 1480 | 57 | 180 | 280 | YB2-355L1-4 | 2.8 | Φ410 | 1006 |
195 | 215 | ||||||||||
186 | 239 | ||||||||||
4 | 272 | 240 | 355 | Y4001-4 | 1180 | ||||||
280 | 77.8 | 260 | 69 | 287 | 3.7 | ||||||
248 | 319 | ||||||||||
5 | 340 | 300 | 450 | Y4003-4 | 1370 | ||||||
325 | 359 | ||||||||||
335 | 93.1 | 310 | 71 | 398 | 5 | ||||||
6 | 408 | 361 | 500 | Y4004-4 | 1552 | ||||||
390 | 431 | ||||||||||
372 | 478 | ||||||||||
7 | 476 | 421 | 630 | Y4501-4 | 1734 | ||||||
455 | 503 | ||||||||||
434 | 558 | ||||||||||
8 | 544 | 481 | 710 | Y4502-4 | 1916 | ||||||
520 | 575 | ||||||||||
496 | 637 | ||||||||||
9 | 612 | 541 | 800 | Y4503-4 | 2098 | ||||||
585 | 646 | ||||||||||
558 | 717 | ||||||||||
10 | 680 | 601 | 900 | Y4504-4 | 2280 | ||||||
650 | 718 | ||||||||||
620 | 797 |