| 自吸泵的自吸时间及自吸高度计算 |
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| 引用本文： | 范宗霖.自吸泵的自吸时间及自吸高度计算[J].兰州理工大学学报,1991(1). |
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| 作者姓名： | 范宗霖 |
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| 作者单位： | 甘肃工业大学机械工程二系 |
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| 摘 要： | 本文对外混式自吸泵的自吸时间和自吸高度的计算方法进行了讨论,提出应根据泵不发生汽蚀和泵储水量大小作为合理确定泵最大自吸高度和最大自吸时间的基本条件。文中给出的计算公式,采用分段叠加法计算自吸时间,与试验结果基本相符,并用实例计算加以说明。
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| 关 键 词： | 自吸泵 蜗壳 真空 自吸高度 自吸时间 汽蚀余量 |
Calculations of Self-priming Time and Suction Lift of Self-priming Centrifugal Pumps |
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| Fan Zonglin.Calculations of Self-priming Time and Suction Lift of Self-priming Centrifugal Pumps[J].Journal of Lanzhou University of Technology,1991(1). |
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| Authors: | Fan Zonglin |
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| Institution: | Second Department of Mechanical Engineering |
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| Abstract: | In this paper, the methods for calculating the self-priming time and height of a self-priming pump with outer recirculation are discussed and then the fundamental conditions for rationally determining its maximum self-priming time and height according to caritation occurrence and water storage are given. The calculated self-priming times by the formula presented in this paper using the method of sectional superposition are basically close to the experimental result,as is illustrated by the calculations on specific exaples. |
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| Keywords: | self-priming pumps volute casings vacuum suction lift self-priming time net positive suction head |
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