双层并联叠置烟气余热回收装置流动特性研究  

Study on the Flow Characteristics of Double-layer Parallel-Connection Overlaid Flue Gas Waste Heat Recovery Unit

作　　者：钟达文 孟继安[2] 朱晓磊[3] 赵岩 隋晓峰 李志信[2] ZHONG Da-Wen;MENG Ji-An;ZHU Xiao-Lei;ZHAO Yan;SUI Xiao-Feng;LI Zhi-Xin(School of Nuclear science and engineering, North China Power and Engineering University, Beijing＂ 102206, China;School of Aerospace Engineering＇, Tsinghua University, Beijing 100084, China;Shanghai Power Equipment Research Institute, Shanghai 200240, China;Beijing Yuanshen Energy Saving Technology Company Limited, Beijing 100142, China)

机构地区：[1]华北电力大学核科学与工程学院,北京102206 [2]清华大学航天航空学院,北京100084 [3]上海发电设备成套设计研究院,上海200240 [4]北京源深节能技术有限公司,北京100142

出　　处：《工程热物理学报》2018年第6期1359-1365,共7页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计划(No.2013CB228301)

摘　　要：针对大型燃气热电厂的余热回收工程,设计了一种双层并联叠置烟气余热回收装置,搭建了1:5缩比模型样机,用空气模拟烟气进行了冷态实验并进行了数值分析,获得了上下层空气的流量分配特性、填料层出口空气流速的均匀性和空气的流动阻力特性,可为大型烟气余热回收装置的设计提供参考。A kind of double parallel superposed flue gas waste heat recovery unit was designed for the waste heat recovery project of large gas thermal power plant. The ratio of the model prototype and real model was 1：5. The cold test was conducted with air simulated the flue gas. The flow characteristics was also investigated by numerical analysis. The air flow distribution characteristics of upper and lower levels, the uniformity of outlet air flow velocity around packing layer exit and the flow resistance characteristics of air was analyzed, which can provide a reference for the design of large flue gas waste heat recovery unit.

关 键 词：填料 余热利用 流动阻力 实验研究 数值分析 

分 类 号：TK11[动力工程及工程热物理—热能工程]