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| Pump performance verification method in GB/T 3216 |
| HE Xi-jie, DI Li-hui, CHANG Yan-hui |
| Slurry Pump Institute of Shijiazhuang, Shijiazhuang, Hebei 050011, China |
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Abstract The verification of capacity,head and efficiency of pumps,and NPSHR in the ISO 9906 and GB/T 3216 are studied.Based on the guarantee value of performance in the standard,the guarantee condition satified by the performance in the standard is discussed and the mathematical expressions about the value verification of capacity,head,efficiency and NPSHR are presented respectively.The technical problem on the verification by computer in the computer aided test has been solved.The verification methods in the old and new standards are compared at the same time.GB/T 3216;ISO 9906;standard;performance;verification
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Received: 08 August 2013
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| [1] .ISO 9906-1999.Rotodynamic pumps-Hydraulic performance acceptance tests-Grades 1and 2[S].[2] .DIN 1944-1968.Abnahmeversuche an kreiselpumpen (VDI-Kreiselpumpenregeln)[S].[3] .容差系数和容差是两个不同的概念,不能用同一个tNPSHR表示,如果容差系数用tNPSHR表示,容差就不能再用它,建议用ΔNPSHR表示为宜[Q].[4] .(NPSHR)测得的,下标尽量不用汉字,用英文或者汉字拼音字母的字头表示为宜,此处建议用meas,可以认为它表示measured的缩写[Q].[5] .ISO 2548-1973(E).Centrifugal,mixed flow and axial pumps-Code for acceptance tests -Class C[S].[6] .ISO 3555-1977(E).Centrifugal,mixed flow and axial pumps-Code for acceptance tests-Class B[S].[7] .GB/T 3216-2005.回转动力泵水力性能验收试验 1级和2级[S].[8] .GB/T 3216-1989.离心泵、混流泵、轴流泵和旋涡泵试验方法[S].[9] .GB/T 12785-2002.潜水电泵试验方法[S].[10] 何希杰.关于ISO 2548、ISO 3555中椭圆公差带与保证条件[J].水泵技术,1985(2):52-54[11] 郑梦海.泵试验实用技术[M].北京:机械工业出版社,2006:33-34[12] 《数学手册》编写组.数学手册[M].北京:新时代出版社,2006:138 |
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