大型泵與泵裝置效率特性預測理論分析

doi:10.3969/j.issn.1000-1298.[year].[issue].[sequence]

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大型泵與泵裝置效率特性預測理論分析
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                        10.3969/j.issn.1000-1298.[year].1.[sequence]
                    
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摘要:

對國內(nèi)外多種原型泵與模型泵之間的效率換算方法進行了理論分析。Moody等傳統(tǒng)公式理論分析不充分,、不完整，換算結(jié)果精度較差,。JIS B 8327—2002推薦式以及本文推薦的新型效率換算公式表達較完善，但JIS B 8327—2002推薦式經(jīng)驗常數(shù)過多,。本文推薦式是根據(jù)較嚴謹?shù)臄?shù)理關(guān)系推導得出的公式,，既能適用于泵，也能適用于泵裝置,，且能定量表達多種因素對效率換算結(jié)果的影響,，能夠為大型泵與泵裝置效率特性預測提供依據(jù)。

Abstract:

A comprehensive theoretical analysis was made on the conversion methods of efficiency characteristics between prototype and model pumps and pumping installations. Most efficiency conversion formulas existed did not analyze the theory sufficiently, and the conversion precision is not adequate. The formula recommended by JIS B 8327—2002 and the new formula recommended are the ones expressed more detailedly. But there are too many empirical constants in former one. The formulas of efficiency conversion recommended are theoretical ones, and are applicable not only to the pumps but also to the pump installations. Quantitative expression for the influence of variety of factors upon the results of efficiency conversion can also be achieved by the formula.

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李彥軍,黃良勇,袁壽其,嚴登豐.大型泵與泵裝置效率特性預測理論分析[J].農(nóng)業(yè)機械學報,2009,40(1):44-49.[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(1):44-49.

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