摘要
为了实现环氧浇注绝缘子固化过程温度场的可控性,在绝缘子制造中引入自加热模具,通过设定加热片的功率、工作时间,来实现固化过程中温度场的可控性。利用COMSOL有限元分析软件,在已建立的盆式绝缘子固化过程模型的基础上,计算自加热模具及绝缘子的温度场分布,并将计算结果与常规非自加热模具及其制造的绝缘子进行对比,最后对两种模具制备的盆式绝缘子承压水平进行对比分析。结果表明:加热片的设计可实现绝缘子固化过程中模具及绝缘子温度场的调控。与常规模具制造的盆式绝缘子相比,自加热模具制造的盆式绝缘子水压破坏值提高了约2.76%,且分散性更小,标准差仅为0.140 MPa。
In order to realize the controllability of temperature field in the curing process of epoxy casting insulator,a self-heating mould was used in the manufacturing process of insulator,and the controllability of temperature field in the curing process was realized by setting the power and working time of heating plates.In this paper,on the basis of the established basin insulator curing process model,the temperature field distribution of the self-heating mould and insulator were calculated by COMSOL finite element analysis software,and then compared with those of conventional non self-heating mould and the corresponding insulator.At last,the pressure bearing level of the insulators made by the two moulds were compared.The results show that the design of heating plate can realize the regulation of temperature field for the mould and insulator in the curing process.Compared with the basin insulator made by conventional mould,the water pressure damage value of the basin insulator made by self-heating mould increases by about 2.76%,and the dispersion is smaller,the standard deviation is only 0.140 MPa.
作者
陈蕊
袁端鹏
阚超豪
郝留成
张敬
李彩娜
CHEN Rui;YUAN Duanpeng;KAN Chaohao;HAO Liucheng;ZHANG Jing;LI Caina(High Voltage Switchgear Insulating Materials Laboratory of State Grid,Pinggao Group Co.,Ltd.,Pingdingshan 467001,China;Hefei University of Technology,Hefei 230009,China;State Key Laboratory for Mechanical Behavior of Materials,Xi’an Jiaotong University,Xi’an 710049,China;Henan Pinggao Electric Co.,Ltd.,Pingdingshan 467001,China)
出处
《绝缘材料》
CAS
北大核心
2020年第12期78-84,共7页
Insulating Materials
基金
国家重点研发计划资助项目(2017YFB0903800、2017YFB0903803)。
关键词
自加热模具
力学性能
盆式绝缘子
仿真
温度场
self-heating mould
mechanical properties
basin insulator
simulation
temperature field
