| 离心泵级间间隙泄漏量的理论计算 |
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| 引用本文： | 张明星,刘瑞青,杨红红.离心泵级间间隙泄漏量的理论计算[J].机电设备,2022,39(1):33-36. |
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| 作者姓名： | 张明星 刘瑞青 杨红红 |
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| 作者单位： | 上海船舶设备研究所,上海 200031 |
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| 摘 要： | 为推导并验证两同轴联接离心泵级间间隙泄漏量的理论公式,基于CFD仿真得出间隙前后压差和转速对级间泄漏量的影响规律;借鉴叶轮密封环泄漏量的理论计算,推导出级间间隙泄漏量的理论计算公式.将数值计算出的泄漏量与理论公式结果进行对比,结果表明二者差距很小,验证了该理论公式计算级间间隙泄漏量的可行性.
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| 关 键 词： | 离心泵 级间间隙 泄漏量 理论计算 |
Theoretical Calculation of Inter-Stage Seal Clearance Leakage |
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| ZHANG Mingxing,LIU Ruiqing,YANG Honghong.Theoretical Calculation of Inter-Stage Seal Clearance Leakage[J].Mechanical and Electrical Equipment,2022,39(1):33-36. |
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| Authors: | ZHANG Mingxing LIU Ruiqing YANG Honghong |
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| Institution: | (Shanghai Marine Equipment Research Institute,Shanghai 200031,China) |
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| Abstract: | In order to derive and verify the theoretical formula of inter-stage leakage between the two coaxially connected centrifugal pumps, based on the CFD simulation, the influence of the pressure difference and speed before and after the gap on the inter-stage leakage is obtained. Based on the theoretical calculation of impeller seal ring leakage, the theoretical calculation formula of inter-stage clearance leakage is deduced. The results show that the gap between the numerical calculation and the theoretical formula is very small, which verifies the feasibility of the theoretical formula to calculate the inter-stage leakage. |
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| Keywords: | centrifugal pump inter-stage seal clearance leakage theoretical calculation |
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