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溫室軸流風(fēng)送藥霧靶標(biāo)沉積試驗(yàn)
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Experiment of Axial-flow Air-carried Toward-target Pesticide Deposition in Greenhouse
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    摘要:

    為研究藥液霧滴在溫室靶區(qū)內(nèi)和植株靶標(biāo)上的沉積量及分布情況，以炮塔式壓力霧化軸流風(fēng)送高壓靜電噴霧系統(tǒng)為試驗(yàn)平臺(tái)，在相同風(fēng)機(jī)頻率、噴霧壓力和噴霧流量條件下，通過改變噴頭高度和靜電電壓對(duì)風(fēng)送藥霧進(jìn)行靶標(biāo)沉積試驗(yàn)和分析。結(jié)果表明：沿風(fēng)送軸線上距噴頭150～200 cm靶區(qū)內(nèi)的藥霧沉積量都出現(xiàn)一個(gè)沉積高峰區(qū)；隨著靜電電壓的增大，植株靶標(biāo)上的藥霧沉積量明顯增加，荷電后的藥液霧滴在風(fēng)送射程和噴幅內(nèi)的靶標(biāo)沉積率顯著提高。根據(jù)實(shí)際噴施作業(yè)目標(biāo)，合理布置噴頭高度和調(diào)節(jié)合適電壓，是增加靶標(biāo)沉積率的重要手段。

    Abstract:

    The object of this paper is to study the range of pesticide droplet deposit and droplet distribution, in different target district and plant target. By axial-flow fan of the air-carried blast sprayer in greenhouse, spraying experiment was carried out with variable height of nozzle and charged voltage, under the same condition of spray pressure, spray flux and frequency of fan. Taken the barbette model pressure atomization axial-flow air-carried high-voltage electrostatic spraying system as the experiment platform, the parameters of spraying deposition on target were calculated and analyzed. The results showed that one deposition peak area is found along the wind cylinder axes at the distance of 150～200 cm from nozzle; with the increasing voltage, pesticide droplet deposition on plant target increases obviously. The toward-target deposition ratio rises distinctly within range of spraying in the state of induction charge. To adjust height of nozzle and charged voltage is the important measures for adding toward-target deposition depending on the practical target of spraying application.

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陸軍,李萍萍,賈衛(wèi)東,邱白晶.溫室軸流風(fēng)送藥霧靶標(biāo)沉積試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(12):88-92.Experiment of Axial-flow Air-carried Toward-target Pesticide Deposition in Greenhouse[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(12):88-92.

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