| 基于数值模拟的制粉系统爆炸原因分析及改造 |
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| 引用本文： | 张磊,陈绍炳,韦红旗.基于数值模拟的制粉系统爆炸原因分析及改造[J].热力发电,2007,36(6):58-60,79. |
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| 作者姓名： | 张磊 陈绍炳 韦红旗 |
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| 作者单位： | 东南大学,江苏,南京,210096 |
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| 摘 要： | 将FLUENT软件数值模拟与现场试验相结合,对某电厂4号锅炉制粉系统爆炸问题进行了分析,认为细粉分离器进粉管处流速低且不均匀造成积粉而自燃是引起制粉系统爆炸的主因,对此,提出了相应的改造措施。改造后制粉系统的爆燃问题得以解决。
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| 关 键 词： | 制粉系统 爆燃 数值模拟 FLUENT软件 |
| 文章编号： | 1002-3364（2007）06-0058-03 |
CAUSE ANALYSIS FOR EXPLOSION IN COAL PULVERIZING SYSTEM OF A POWER PLANT BASED ON NUMERICAL SIMULATION AND RETROFIT THEREOF |
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| ZHANG Lei,CHEN Shao-bing,WEI Hong-qi.CAUSE ANALYSIS FOR EXPLOSION IN COAL PULVERIZING SYSTEM OF A POWER PLANT BASED ON NUMERICAL SIMULATION AND RETROFIT THEREOF[J].Thermal Power Generation,2007,36(6):58-60,79. |
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| Authors: | ZHANG Lei CHEN Shao-bing WEI Hong-qi |
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| Affiliation: | South east China University, Nanjing 210096, Jingsu Province, PRC |
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| Abstract: | Combining the FLUENT software numerical simulation with test in the field, the exploisions in coal pulverizing system of boiler no. 4 in one power plant have been analysed. It is believed that the main cause of exlosion is due to auto - ignition of pulverized coal accumulated in the inlet pipe of fine pulverized coal separator, where the flow rate is somewhat lower and non - homogeneous, For this, corresponding retrofit measures have been put forward. Results of of practical operation show that the effectiveness of retrofit is remarkable, preventing effectively the problem of explosion in coal pulverizing system. |
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| Keywords: | coal pulverizing system explosion goose- head pipe numerical simulation FLUENT software |
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