高炉水冷风口流场和温度场数值模拟
郄亚娜,张淑会,吕庆
河北联合大学冶金与能源学院, 河北 唐山 063009
A Numerical Simulation of Flow Field and Temperature in Water Cooled Tuyere
QIE Ya-na,ZHANG Shu-hui,L Qing
Metallurgy and Energy School, Hebei United University, Tangshan 063009, Hebei, China
摘要 高炉风口合理的流场和温度场对延长风口寿命非常重要。利用计算流体力学(CFD)对高炉风口冷却水的流场和温度场进行数值模拟,得到其流场和温度场的分布规律,为有效延长风口寿命提供理论基础。模拟结果表明,进水口水压一定时,风口出水口侧前端边缘温度最高;进水口水压低于0.4MPa时,提高水压,进水口速度增加,风口前端最高温度下降明显;进水口水压高于0.4MPa时,温度下降趋于平缓。因此,设定进水口水压为0.4MPa左右时,风口最高温度较低,冷却效果明显。
Abstract :Reasonable temperature field and flow field of tuyere in blast furnace is very important to tuyere service life. The flow field and temperature field of tuyere were simulated by using computational fluid dynamics(CFD). Simulation results show that the front edge of the tuyere outlet side has the highest temperature. Improving the water pressure when the pressure of the inlets below 0.4MPa, the flow velocity will increase, while the peak temperature of the tuyere front-end will obviously decreases. However, the situation result is reverse when the inlet pressure exceeding 0.4MPa. Comprehensive consideration, when the inlet pressure is about 0.4MPa, the highest temperature is low and the cooling effect is obvious.
Key words :
blast furnace tuyere front end
water pressure of the inlets
flow field
temperature field
收稿日期: 2013-04-09
出版日期: 2014-01-20
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