棒式文丘里除塵器氣液兩相流阻力特性

夏毅敏; 楊端; 胡承歡; 唐浦華; 卜英勇

doi:10.13374/j.issn2095-9389.2017.03.018

棒式文丘里除塵器氣液兩相流阻力特性

doi: 10.13374/j.issn2095-9389.2017.03.018

1) 中南大學機電工程學院, 長沙 410083
2) 長沙學院機電工程系, 長沙 410003

基金項目:

國家高技術研究發展計劃資助項目（2012AA041801）；國家重點研發計劃資助項目（2016YFC0209300）；中南大學中央高校基本科研業務費專項資金資助項目（2016zzts292）

詳細信息

中圖分類號: U455.3⁺1
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- 文章訪問數: 692
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- 被引次數: 0
出版歷程
- 收稿日期: 2016-06-02

Resistance characteristics of gas-liquid two-phase flow in stick venturi scrubbers

1) School of Mechanical and Electrical Engineering, Central South University, Changsha 410082, China
2) School of Mechanical and Electrical Engineering, Changsha University, Changsha 410082, China

摘要

摘要: 為了掌握棒式文丘里除塵器內氣液兩相流的阻力特性，基于多相流理論，建立其三維CFD模型，研究分析棒間距、除塵風量和液氣比對棒式文丘里除塵器阻力特性的影響，并建立了阻力預測公式以及三者之間的關系式.結果表明：文丘里棒層與下筒體的壓力損失隨著棒間距的減小和風量的增大呈冪指數關系增大，隨著液氣比的增大呈近線性增大；上筒體的壓力損失與風量呈近平方關系；通過與實驗數據對比，關系式最大誤差為16.88%，驗證了其有效性.
- 棒式文丘里 /
- 阻力特性 /
- 兩相流 /
- 數值模擬
Abstract: In order to grasp the resistance characteristics of gas-liquid two-phase flow in stick venturi scrubbers, based on the multiphase flow theory, a three-dimensional CFD model was established. The impacts of stick spacing, air flow and liquid-gas ratio on the pressure loss were studied, and a resistance characteristic model was established. The relationship among stick spacing, air flow and liquid-gas ratio was obtained based on the resistance characteristic model. The results show that the pressure loss between the venturi bar layer and the lower cylinder increases in power exponent with the decrease of stick spacing and the increase of air flow, and it increases in linear with the increase of liquid-gas ratio. The pressure loss of the upper cylinder increases in quadratic with the increase of air flow. The max error between the resistance characteristic model and experimental data is 16. 88%, which verifies the model effectiveness.
- stick venturi /
- resistance characteristics /
- two-phase flow /
- numerical simulation

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參考文獻(12)

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