耐腐蚀泵主要零件的材料选用
使用条件 |
不耐腐蚀 | 耐中等硫腐蚀 | 耐酸性矿水 | 低温 | ||||||
1.96MPa | 5.9MPa | 19.6MPa | 29.4MPa | 5.9MPa | 15.7MPa | PH值2~4 | 5.9Mpa | |||
<150℃ | .-20~150℃ | .-45~ -20℃ 150~ 250℃ | 250~ 400℃ | .-45~ 180℃ | -45~ 400℃ | -45~150℃ | 常温 | -110~45℃ | ||
泵体 (前中后段) |
HT200 | HT250 | ZG25Ⅱ | ZG1Cr13 | ZGCr5Mo或ZG1Cr13 | ZGCr17Mn9Ni4Mo2CuN中段用ZGCr17Mo2CuR | ZG1Cr18Ni9 | |||
导叶 | HT200 | HT250 | ZG1Cr13 | ZG25Ⅱ | ZG1Cr13 | ZGCr17Ni4或ZGoCr13Ni4MoR | ZGCr5Mo或ZG1Cr13 | ZGCr17Mo2CuR | ZG1Cr18Ni9 | |
叶轮 | HT200 | HT250 | ZG25Ⅱ | ZG1Cr13 | ZGCr5Mo或ZG1Cr13 | ZGCr17Mo2CuR | ZG1Cr18Ni9 | |||
轴 | 45 | 45或40Cr | 35CrMo | 40CrV或35CrMo | 3Cr13 | 1Cr18Ni或2Cr18Ni | ||||
泵体密封环 | HT200 | HT250 | 40Cr | 40Cr | 3Cr13 | 1Cr18Ni9 | ||||
叶轮密封环 | HT200 | 45(表面处理45~52HRC) |
3Cr13 (热处理45~52HRC) |
耐磨聚四氟乙烯 | ||||||
轴套 (软填料) |
HT200 | HT250 | 45(表面处理45~52HRC) | 3Cr13(热处理241~277HBS) | ||||||
轴套 (机械密封) |
45(表面镀铬)3Cr13(热处理241~277HBS) | 1Cr18Ni9 | ||||||||
平衡盘 | HT250 | 25堆焊 TDCr-(50)C | 2Cr13(表面处理40~45HRC) | |||||||
平衡板 | HT250 | ZQA19-4或 45(45~52HRC) | 3Cr13(表面处理50~56HRC) |
ZQA19-4 ZG3Cr13 Hrc=50~56 |
||||||
外筒 | 25 | 16Mn(与介质接触处堆焊铬不锈钢或奥氏体钢) | Cr5Mo | 1Cr18Ni9 | ||||||
泵体螺栓(穿杠) | 45 | 35CrMo | 40Cr | 35CrMo | 45 | HP659-1或QA19-4 | ||||
螺母 | A3 | 45 | 40Cr | 40Cr | 45 | 铜合金或2Cr13 | ||||
液体润滑 轴承 |
石墨、聚四氟乙烯或铜合金 |
石墨 聚四氟乙烯 |