颗粒旋转对CFB内气固两相流动特性的影响  

Operation optimizing for a compact CFB boiler with installing anti-wear device

作　　者：朱传兴 张道奎 赵鹏博[3] 王海涛[3] 高洪培[3] 

机构地区：[1]国电大武口发电厂,宁夏石嘴山753000 [2]河南省安装集团有限责任公司,河南洛阳471000 [3]西安热工研究院有限公司,陕西西安710032

出　　处：《洁净煤技术》2009年第6期61-63,118,共3页Clean Coal Technology

摘　　要：运用基于颗粒动理学理论的欧拉一欧拉气固多相流模型,考虑颗粒自旋转运动对颗粒碰撞能量交换和耗散的影响,并数值模拟CFB内气固颗粒两相流动特性。结果表明,颗粒的自旋转使得流化床内更容易形成气泡,颗粒浓度分布变化增大。颗粒自旋转运动导致床内非均匀结构更明显。A compact CFB boiler of China Petroleum and Chemical Corporation is faced with wear badly of waterwall. After installing multistage anti-wear device, well anti-wear effect is obtained. But operation parameters, bed temperature and so on change slightly. By optimizing, bed temperature is reduced and thermal economy is improved.

关 键 词：流动特性 循环流化床 颗粒运动 

分 类 号：TQ021[化学工程]