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自吸旋渦泵變轉(zhuǎn)速性能與內(nèi)部流場試驗(yàn)
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-priming Vortex Pump Variable Speed Performance and Internal Flow Test
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    摘要:

    研制25WZ1-12型自吸旋渦泵試驗(yàn)樣機(jī)，通過型式及變轉(zhuǎn)速外特性試驗(yàn)，得出旋渦泵qv-H、qv-η性能曲線變化規(guī)律，驗(yàn)證qv-H、qv-P曲線換算滿足相似理論比例定律，qv-NPSH曲線換算不滿足汽蝕相似定律；用5孔管束探針對流道流場進(jìn)行測量，得到流場靜壓ps、當(dāng)量徑向速度vre和當(dāng)量圓周速度vue隨泵轉(zhuǎn)速變化分布狀況；通過對試驗(yàn)數(shù)據(jù)的分析，解釋了外特性參數(shù)與內(nèi)部流動(dòng)參數(shù)之間的聯(lián)系和變化規(guī)律，指出旋渦泵的汽蝕類型及發(fā)生部位，為旋渦泵優(yōu)化設(shè)計(jì)和建立內(nèi)部流動(dòng)模型提供參考依據(jù)。

    Abstract:

    The 25WZ1-12 vortex self-priming pump test prototype was developed. Through the experiment of type and the external characteristics of the variable rotational speed, performance curves, such as qv-H and qv-η, were obtained. The curve conversion for qv-H meets the proportion law of similar theory, but the qv-NPSH curve conversion does not satisfy the cavitation affinity law for the vortex pump. The flow channel field was measured with 5hole probe, to gain the distribution of flow static pressure ps, equivalent vre radial velocity and equivalent circumferential velocity vue at the various pump rotational speed. By analyze the test data, the relation between the external characteristic and the internal flow was discussed, also the type and location for the cavitations of the vortex pump was presented. 

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沙毅,李金磊,劉祥松,侯麗艷,程峰.自吸旋渦泵變轉(zhuǎn)速性能與內(nèi)部流場試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(12):119-124.-priming Vortex Pump Variable Speed Performance and Internal Flow Test[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(12):119-124.

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