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合金化過(guò)程中抑制煙囪效應(yīng)的數(shù)值模擬研究

發(fā)布時(shí)間:2018-04-28 18:01

  本文選題:合金化爐 + 數(shù)值模擬; 參考:《鑄造技術(shù)》2016年11期


【摘要】:以熱鍍鋅機(jī)組合金化爐為研究對(duì)象,建立合金化爐內(nèi)空氣流動(dòng)與熱交換的物理模型和數(shù)學(xué)模型,對(duì)爐體側(cè)封不同高度以及增設(shè)阻流板前后情況進(jìn)行對(duì)比,研究阻流板對(duì)帶鋼表面溫度的影響。利用CFD軟件,采用標(biāo)準(zhǔn)k-ε湍流模型,對(duì)合金化爐內(nèi)流場(chǎng)和溫度場(chǎng)的分布進(jìn)行數(shù)值模擬研究,得到爐內(nèi)流場(chǎng)和溫度場(chǎng)分布特征。結(jié)果表明:在相同的加熱功率條件下,爐體無(wú)側(cè)封高度,增設(shè)阻流板將有助于提高爐內(nèi)氣流溫度;然而,在爐體側(cè)封高度分別為0.09、1.29 m的情況下,阻流板抑制爐內(nèi)熱氣流的煙囪效應(yīng),阻礙熱氣流對(duì)帶鋼的加熱作用,導(dǎo)致帶鋼表面溫度降低。
[Abstract]:The physical and mathematical models of air flow and heat exchange in alloying furnace are established by taking alloying furnace of hot-dip galvanizing unit as the research object. The different height of side seal of furnace body and the situation before and after adding baffle plate are compared. The effect of baffle plate on the surface temperature of steel strip was studied. The distribution of flow field and temperature field in alloying furnace was numerically simulated by using standard k- 蔚 turbulence model with CFD software, and the distribution characteristics of flow field and temperature field in alloying furnace were obtained. The results show that under the same heating power condition, the furnace body has no side seal height and the flow resistance plate will help to increase the air flow temperature in the furnace, however, when the side seal height of the furnace body is 0.09 ~ 1.29 m, The baffle plate inhibits the chimney effect of the hot air flow in the furnace, hinders the heating effect of the hot airflow on the strip, and results in the decrease of the surface temperature of the strip.
【作者單位】: 武漢科技大學(xué)教育部冶金自動(dòng)化與檢測(cè)技術(shù)工程研究中心;
【基金】:武漢科技大學(xué)大學(xué)生科技創(chuàng)新項(xiàng)目資助 武漢科技大學(xué)教育部冶金自動(dòng)化與檢測(cè)技術(shù)工程研究中心開放基金,熱鍍鋅合金化過(guò)程溫度控制與質(zhì)量?jī)?yōu)化研究(項(xiàng)目編號(hào):MADT201606)
【分類號(hào)】:TG155.1
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本文編號(hào):1816304

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