| 水泵全特性曲线误差分析及其对停泵水锤计算的影响研究 |
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| 作者姓名： | 刘利 高升 |
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| 作者单位： | 1. 云南省交通规划设计研究院建筑与环境工程分院,云南 昆明,650011
2. 中国水电顾问集团昆明勘测设计研究院环境工程设计分院,云南 昆明,650051 |
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| 摘 要： | 分析了比转数Ns=127的水泵全特性曲线误差，经过读图和计算得到水泵全特性曲线的最大值、最小值和理论值，利用这些数据计算得出水泵全特性曲线的绝对误差和相对误差，并结合工程实例，研究了水泵全特性曲线误差对停泵水锤的影响。结果表明，为避免水泵全特性曲线误差对停泵水锤计算结果的影响，应尽量采用水泵全特性曲线的理论值进行水锤分析计算。
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| 关 键 词： | 停泵水锤 全特性曲线 误差分析 |
Error analysis of full-featured pump curve and impact of calculation for pump-off water hammer |
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| Authors: | Liu Li Gao Sheng |
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| Affiliation: | 1. Building and Environmental Protection Department, Broadvision Engineering Consultants, Kunming 650011, China ; 2. Department of Environmental Engneering Design, HydroChina Kunming Engineering Corporation, Kunming 650051, China) |
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| Abstract: | The errors of full-featured pump curve were analyzed under the specific speed Ns = 127. Large amounts of data, including the maximum, minimum and the theoretical value of the full- featured pump curve were obtained by picturing and calculating. The absolute errors and relative errors of the full-featured pump curve were calculated using these data. The influence of the full-featured pump curve errors on pump-off water hammer was investigated combined with the engineering examples. The results showed that the theoretical value of full-featured pump curve was adopted for the analysis and calculation of the water hammer, in order to avoid the effect of full-featured pump curve errors on the calculation results for pump-off water hammer. |
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| Keywords: | pump-off water hammer full-featured curve error analysis |
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