|
| 夹套管荒煤气余热回收装置的热力计算和模拟 |
| Thermodynamic calculation and simulation of waste heat recovery equipment of raw gas in the jacketed pipe |
| 投稿时间：2015-07-22 |
| DOI：10.13259/j.cnki.eri.2018.02.005 |
| 中文关键词: 荒煤气 夹套管 显热回收 热力计算 模拟 |
| 英文关键词:raw gas jacketed pipe sensible heat recovery thermodynamic calculation simulation |
| 基金项目: |
|
| 摘要点击次数: 2977 |
| 全文下载次数: 1978 |
| 中文摘要: |
| 为解决炼焦系统中荒煤气中大量余热未被回收利用等问题，对焦炉上升管余热回收装置进行了热力计算，并利用Fluent软件对系统进行了模拟，选用的模型分别为k-ε湍流模型和Do辐射模型。通过数值模拟观察荒煤气流量和水流量变化时上升管内壁温度的变化。结果表明：荒煤气流量变化导致的内壁温度变化比水流量变化导致的内壁温度变化要强烈；荒煤气流量越大，上升管内壁温度变化越大，上升管出口温度越高；管壁的最低温度并不是出现在上升管的出口处，而是在距离管口一段距离处。 |
| 英文摘要: |
| To resolve the recovery problem of large amount of waste heat from raw gas in the coking system, thermodynamic calculation of waste heat recovery equipment in the coke-oven ascension pipe was conducted. The simulation of this equipment with Fluent software was made. The k-ε turbulence model and Do radiation model were selected. As the raw gas flow rate and water flow rate changed, the relative changes of inner surface temperature could be observed. Results showed that the changes of inner surface temperature caused by raw gas flow rate were more severe than that by water flow rate. The higher the raw gas flow rate, the greater the changes of inner surface temperature were. And thus the temperature outlet the pipe was higher. The lowest temperature on the wall of the pipe did not appear outlet the pipe, but at a distance from the outlet. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
