新型减温器的结构设计与仿真分析  

Structure Design and Simulation Analysis of New Desuperheater

作　　者：郑健 林玉娟[1] 赵栋 魏雪[1] 夏永强 ZHENG Jian;LIN Yu-juan;ZHAO Dong;WEI Xue;XIA Yong-qiang(School of Mechanical Science and Engineering,Northeast Petroleum University;School of Energy and Power Engineering,Dalian University of Technology)

机构地区：[1]东北石油大学机械科学与工程学院 [2]大连理工大学能源与动力学院

出　　处：《化工机械》2023年第1期92-97,共6页Chemical Engineering & Machinery

摘　　要：为提高减温器在工作过程中的减温效果,以文丘里式减温器为研究对象,在新型减温器入口处设计一个螺旋节流结构,为了验证该结构能否增强减温水的雾化效果,采用计算流体力学CFD进行仿真模拟分析,利用流体力学软件Fluent内置的k-ε湍流模型和离散相模型,模拟原始结构减温器和新型减温器的内部流体状态,对流体的温度、水蒸气含量和颗粒直径分布云图进行比较分析,结果表明:有螺旋结构的减温器内部流体气液混合均匀、减温水雾化程度高、减温效果好,具有一定的应用价值。For purpose of improving the temperature reduction effect of the desuperheater in the working process, a spiral throttle structure was designed at the entrance of the venturi desuperheater. In order to verify this structure’s effect in enhancing the atomization of desuperheating water, employing CFD for simulation analysis was implemented, including having the k-ε turbulence model and discrete phase model built in Fluent used to simulate internal fluid states of different desuperheaters, and having the cloud diagrams of fluid temperature, water vapor content and particle diameter distribution compared and analyzed.The results show that, the fluid gas-liquid mixing is uniform and the desuperheating water’s atomization degree is high together with good temperature reducing effect. This new spiral throttle structure has certain application value.

关 键 词：新型减温器 结构设计 螺旋节流结构 减温水 CFD 

分 类 号：TQ050.2[化学工程]