| 筒仓和容器中紊流度及粉尘浓度测定 |
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| 引用本文： | 赫尔特,弗哥尔.筒仓和容器中紊流度及粉尘浓度测定[J].中国安全科学学报,1995,5(3):30-33. |
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| 作者姓名： | 赫尔特 弗哥尔 |
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| 作者单位： | 德国食品餐馆业安全研究中心 |
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| 摘 要： | 采用ＬＤＡ及特殊粉尘测试系统测定了ＲＭＳ紊流度、流速及粉尘浓度，在标准的１ｍ３容器和１２ｍ３筒仓中进行的实验表明，１２ｍ３筒仓中的粉尘浓度与１ｍ３的数值相同，而１ｍ３容器的ＲＭＳ紊流度竖直分量（经０．６ｓ，ＲＭＳ＝５ｍ／ｓ）比１２ｍ３筒仓的值约高出２．５倍；若采用机械喷粉，则紊流度约高出１０倍。
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| 关 键 词： | 筒仓，紊流度，粉尘浓度 |
MEASUREMENT OF TURBULENCE ANDDUST CONCENTRATION IN SILOS AND VESSELS |
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| F. Hauert,A. Vogl S. Radandt.MEASUREMENT OF TURBULENCE ANDDUST CONCENTRATION IN SILOS AND VESSELS[J].China Safety Science Journal,1995,5(3):30-33. |
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| Authors: | F Hauert A Vogl S Radandt |
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| Institution: | F. Hauert * A. Vogl** S. Radandt*** |
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| Abstract: | In this study RMS turbulent velocities, flow velocities and dust concentration are determined with a LDA-system and a special dust measuring system. Tests are carried out in astandard 1m3-vessel and in a 12m3- silo fed with dust pneumatically and mechanically, respectively. The results show that the dust concentration in the 12m3-silo is at least as highas in the standard vessel. However, the RMS turbulence velocity in the 1m3-vessel (after0. 6s RMS= 5) for the vertical component is about 2. 5 times higher than in the pneumatically filled 12m3 -silo, and using mechanical filling the turbulence is about 10 times lowerthan in the above-mentioned 1m3-vessel. |
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| Keywords: | Silo Turbulence Dust concentration |
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