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。
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.
出处
《热力发电》
CAS
北大核心
2007年第6期58-60,79,共4页
Thermal Power Generation
关键词
制粉系统
爆燃
数值模拟
FLUENT软件
coal pulverizing system
explosion
goose- head pipe
numerical simulation
FLUENT software
