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3種噴頭霧滴輸運沉積參數(shù)的試驗與分析
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Experiment and Analysis on Droplets Motion and Deposition Parameters of 3 Nozzles
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    摘要:

    為了研究在感應(yīng)荷電狀態(tài)下高電壓對霧滴輸運沉積參數(shù)的影響,，選用3種德國Lechler公司生產(chǎn)的不同流量的TR80-01c,、TR80-02c,、TR80-03c型噴頭,，在相同的噴霧壓力和液體介質(zhì)條件下進行試驗,。利用顯微圖像結(jié)合數(shù)字圖像處理技術(shù)對荷電霧滴輸運沉積面積,、覆蓋率,、沉積密度,、分布均勻性等狀態(tài)參數(shù)進行取樣和分析,。試驗結(jié)果表明：隨著輸運距離的增加,，3種噴頭的霧滴覆蓋率δ先上升后下降，最高峰值分別達到52.04%,、54.89%和57.31%,；而霧滴沉積密度ρ先下降后上升，最低值分別為241,、268,、283個/mm2。隨著靜電電壓的增大,，3種噴頭的霧滴沉積區(qū)域面積隨之增大,，最大值分別達到4462,、7170、8280 cm2,；而霧滴分布均勻性有所下降,，最低值分別為33.23%、31.91%和30.47%,。根據(jù)具體噴霧施藥場合,，調(diào)節(jié)適當?shù)碾妷海窃黾铀幰撼练e和分布均勻的重要措施,。

    Abstract:

    To study the effect of high voltage on the parameters of droplets motion and deposition in the state of induction charge, charged droplet’s move-motional and depositional process of 3 nozzles were tested under the same condition of spray pressure and liquid medium. By using micrograph combining with digital image processing technology, the parameters of spraying deposition were calculated and analyzed. The results showed that with the increasing distance, droplet spraying coverage rises firstly and then declines, but the droplets density is of the opposite trend; with the increasing voltage, area of deposition increases obviously, but spraying uniformity declines. The appropriate voltage depends on the practical occasions of electrostatic spraying application, and adjusting charged voltage is an important measure for adding droplet deposition and spray uniformity. 

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陸軍,李萍萍,賈衛(wèi)東,邱白晶.3種噴頭霧滴輸運沉積參數(shù)的試驗與分析[J].農(nóng)業(yè)機械學報,2009,40(10):53-57.Experiment and Analysis on Droplets Motion and Deposition Parameters of 3 Nozzles[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(10):53-57.

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