蜂窝体蓄热室回收转炉煤气余热可行性研究  

Feasibility Study on Heat Recovery of Converter Gas by Honeycomb Heat Regenerator

作　　者：秦勤 王奎明 于庆波 方林 QIN Qin;WANG Kui-ming;YU Qing-bo;FANG Lin(School of Metallurgy,Northeastern University,Shenyang110819,China;A.O.Smith(China)Water Heater CO.,Ltd.,Nanjing 320100,China)

机构地区：[1]东北大学冶金学院,辽宁沈阳110819 [2]艾欧史密斯(中国)热水器有限公司,江苏南京320100

出　　处：《东北大学学报（自然科学版）》2018年第11期1608-1613,共6页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51274066)

摘　　要：从转炉煤气点火源能量出发,研究蜂窝体蓄热室回收转炉煤气中、低温段余热的安全性.建立蜂窝体蓄热室通道物理模型,根据JKR碰撞理论和摩擦学理论分别计算蜂窝体蓄热室内多颗粒相潜在点火源能量.通过最小点火能测定实验台测出常温下3种转炉煤气的最小点火能,修正最小点火能理论计算公式,修正系数为0. 909;计算得到3种转炉煤气在着火点(973 K)时的最小点火能分别为7. 36×10^(-7),6. 26×10^(-7),6. 01×10^(-7)J.与潜在点火源能量对比,结果表明:孔径小于6 mm的蜂窝体蓄热室回收转炉煤气中、低温段余热是安全可行的.Based on the ignition energy of the converter gas,the safety of waste heat recovery from converter gas at middle and low temperature in the honeycomb regenerator is analyzed.A physical model of the channel in the honeycomb regenerator is established.Potential total energy of multi-particle phase in the honeycomb regenerator is calculated by using JKR collision theory and the theory of tribology.Based on the minimum ignition energy(MIE)of converter gas through the MIE experiment platform at room temperature,the experimental correction calculation formula of MIE is revised and the modified coefficient is 0.909.The MIE in three kinds of converter gas at the ignition temperature of 973 K is 7.36×10-7,6.26×10-7 and 6.01×10-7 J,respectively.Compared with the potential ignition energy,the results show that it is safe and feasible to recover the waste heat from the converter gas at medium-low temperature in the honeycomb regenerator when the bore diameter is smaller than 6 mm.

关 键 词：转炉煤气 点火能 蜂窝体蓄热室 碰撞理论 摩擦理论 

分 类 号：X938[环境科学与工程—安全科学]