摘要
某超高温阀控制部件内含有线圈部分,而国内目前绕制线圈的漆包线一般耐温不大于200℃。因此为保证在300℃环境下正常工作,线圈部位设计了冷却结构。采用有限元仿真软件Fluent来优化冷却结构,并进行了试验验证。研究结果表明:在流阻一定的情况下,入口流量与入口压力无关,影响入口流量的主要因素是阻尼孔的大小;阻尼孔由2.5 mm增加到3.5 mm时,入口流量增加了1.32 L/min(阻尼孔为2.5 mm时,流量为3.16 L/min);阻尼孔为3.5 mm时,仿真误差为9.3%,与试验数据基本一致。
The control part of an ultra-high temperature valve supporting a military industry under research contains a coil,while the temperature resistance of enameled wire wound with coils in China is generally not more than 200℃.Therefore,in order to ensure normal operation at 300℃,a cooling structure is designed for the coil.The finite element simulation software Fluent was used to optimize the cooling structure,and the experimental verification was carried out.The results show that the inlet flow has nothing to do with the inlet pressure when the flow resistance is constant,and the main factor affecting the inlet flow is the size of the damping hole;When the damping hole increases from 2.5 mm to 3.5 mm,the inlet flow increases by 1.32 L/min(when the damping hole is 2.5 mm,the flow is 3.16 L/min);When the damping hole is 3.5 mm,the simulation error is 9.3%,which is basically consistent with the test data.
作者
张耀新
魏建晖
振前
葛赛
冉娟
ZHANG Yao-xin;WEI Jian-hui;ZHEN Qian;GE Sai;RAN Juan(Henan Aerospace Hydraulic and Pneumatic Technology Co.,Ltd.,Zhengzhou 451191,China)
出处
《液压气动与密封》
2023年第12期69-72,共4页
Hydraulics Pneumatics & Seals
关键词
超高温阀
冷却结构
有限元仿真
阻尼孔
ultra high temperature valve
cooling structure
finite element simulation
damping hole
