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料液脈動(dòng)燃燒尾氣霧化試
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on Atomizing Properties of Helmholtz Pulse Combustor
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    摘要:

    脈動(dòng)燃燒器產(chǎn)生的高溫振蕩尾氣流可用于料液的脈動(dòng)氣流霧化干燥,，作業(yè)成本低，干燥質(zhì)量好,。本文采用小型亥爾姆霍茨（Helmholtz）型脈動(dòng)燃燒器,，利用激光測(cè)試儀測(cè)定霧滴粒度和粒度分布,，研究了脈動(dòng)燃燒尾氣流霧化料液過程中料液流量,、料液粘度和脈動(dòng)氣流頻率對(duì)霧滴粒度和粒度分布的影響規(guī)律,。試驗(yàn)結(jié)果分析表明,，料液流量35L/h,、脈動(dòng)氣流頻率100Hz,、料液粘度適中時(shí)的霧化效果最好,。

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    The oscillating hot air that generated by a pulse combustor can be used to atomize and dry liquid materials. It has many advantages, such as low operation cost, high drying quality, and simple structure of the dryer. A small Helmholtz pulse combustor was used in this research. An optical analyzer was employed for measuring the mean diameters of atomized droplets and droplets size distribution. The feed rate and viscosity of liquid material, frequency of oscillating hot air are the main factors affecting the atomizing properties. The experimental results indicated that the uniform droplet size distribution could be obtained under the conditions of a low feed rate, high-frequency pulsating flow and moderate viscosity.

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楊德勇,謝翔燕,劉相東.料液脈動(dòng)燃燒尾氣霧化試[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(3):90-92. on Atomizing Properties of Helmholtz Pulse Combustor[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(3):90-92.

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