高温螺栓法兰连接系统的温度场及热损失分析  

Analysis on Temperature Distribution and Heat Loss of Bolted Flanged Connections at High Temperature

作　　者：陈圆[1] 关凯书[1] 马凯[1] 章兰珠[1] 徐严言 

机构地区：[1]华东理工大学承压系统与安全教育部重点实验室,上海200237

出　　处：《华东理工大学学报（自然科学版）》2015年第6期857-862,共6页Journal of East China University of Science and Technology

基　　金：国家自然科学基金(51275171)

摘　　要：搭建了DN600、CLASS300金属与金属接触型(MMC)螺栓法兰接头高温试验装置,获得了在500℃下各组件的温度分布。同时,利用有限元软件ANSYS建立了法兰接头三维热力学模型,利用试验结果对模拟结果进行了验证,并分析了保温与不保温时的温度场及热损失。结果表明:当法兰接头保温时,各部件温度趋于一致并与法兰内壁温度接近,比不保温时有较大提高;保温后节能效果明显。A DN600,CLASS300 metal to metal contact（MMC）bolted flanged joints test device at high temperature was established,and the temperature distribution at 500 ℃ was obtained.Meanwhile,simulation results of the three-dimensional thermodynamic model of flange joints,which was developed by using the finite element software ANSYS,were verified by experimental results;the temperature distribution and heat loss under both conditions were analyzed.Results show that the temperature of each component tends to be uniform when flange joints are insulated,which is closed to that of the inner wall of flange and has a relatively rise compared with the uninsulated flange joints;the energy efficiency is obvious.

关 键 词：高温 保温 螺栓法兰接头 节能 

分 类 号：TB42[一般工业技术]