| 电厂SCR系统的设计与数值模拟 |
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| 引用本文： | 俞逾,杨晨,范莉.电厂SCR系统的设计与数值模拟[J].现代电力,2007,24(3):58-62. |
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| 作者姓名： | 俞逾 杨晨 范莉 |
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| 作者单位： | 重庆大学动力工程学院,重庆,400044 |
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| 摘 要： | 采用计算流体动力学(CFD)模型预测某600MW电厂选择性催化还原法烟气脱硝系统不同设计情况下的流场状态。自行设计了系统导流装置,并分析了系统在锅炉最大连续蒸发量(BMCR)工况下,采用不同尺寸喷嘴格栅时反应器内NH3与NOx的混和情况。采用GAMBIT构造几何模型并划分网格,使用FLUENT6.0进行模拟计算。研究重点在模拟喷氨格栅内氨气的速度分布,分析不同尺寸喷嘴反应器内反应物质摩尔比发生变化的原因。研究结果对脱硝系统内导流装置和喷氨格栅的设计和改进提供参考。
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| 关 键 词： | 脱硝系统 导流装置 喷氨格栅 流场 数值模拟 |
| 文章编号： | 1007-2322(2007)03-0058-05 |
| 修稿时间： | 2006年11月20 |
Design and Numerical Simulation for Selective Catalytic Reduction System in Power Plant |
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| Yu Yu,Yang Chen,Fan Li.Design and Numerical Simulation for Selective Catalytic Reduction System in Power Plant[J].Modern Electric Power,2007,24(3):58-62. |
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| Authors: | Yu Yu Yang Chen Fan Li |
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| Abstract: | The computation fluid dynamics(CFD) is used to predict the flow filed inside the selective catalytic reduction(SCR)system of a 600MW power plant.The guide device in system is designed.The mixing states of NH3 with NOx in SCR reactor with different AIG sizes under BMCR load are analyzed.The CFD model is established.It is meshed with GAMBIT and calculated with FLUENT software.This investigation concentrates on modeling the ammonia's flow field in AIG,and researching the reasons why the molar ratio of reagents change with different AIG sizes.The results of the research can offer reference to the design and improvement of the guide device and AIG in SCR system. |
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| Keywords: | SCR guide device AIG flow field numerical simulation |
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