液冷电子吊舱温度环境测试研究  

Ambient Temperature Inside Liquid-cooled Electronic Pod

作　　者：包胜 王敬韬 司俊珊 祁成武 褚鑫 王超 BAO Sheng;WANG Jing-tao;SI Jun-shan;QI Cheng-wu;CHU Xin;WANG Chao(The 29th Research Institute of CETC,Chengdu 610000,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,成都610000

出　　处：《装备环境工程》2022年第4期80-85,共6页Equipment Environmental Engineering

摘　　要：目的为液冷电子吊舱热管理系统设计、可靠性预计提供实测数据支撑。方法在液冷电子吊舱搭载航空平台,通过采集不同季节、不同飞行工况下电子吊舱内部的温度数据,获取舱内温度环境参数。结果在统计工况范围内,引气温度的波动范围为-30~54℃,出现在0~30℃的概率为80.8%,而供液温度的波动范围为-5~46℃,出现在10~40℃的概率为85.3%。液冷电子吊舱的引气温度、供液温度呈现明显的季节特性,从冬季、春秋季到夏季,引气温度、供液温度依次升高,在夏季引气温度较高的情况下,环控分系统可使供液温度明显低于引气温度。结论受环控分系统主动温度控制、电子设备发热、电子吊舱热容等影响,液冷电子吊舱供液温度的波动范围明显小于引气温度的波动范围,这一特性对提高舱内电子设备的可靠性更有利。供液温度的动态稳定时间约为5 min,即当电子设备连续工作时间不超过5 min时,在开展热设计时需要进行瞬态工况评估。This paper aims to provide actual measurement data support for the design of an electronic pod thermal management system and reliability prediction.The liquid-cooled electronic pods are mounted on the aviation platform to obtain the temperature environment parameters inside the pods by collecting the temperature data inside the electronic pods under different seasons and different flight conditions.The results show that,within the range of statistical conditions,the fluctuation range of bleed air temperature is-30~54℃,and interval probability in 0~30℃is 80.8%,however,the fluctuation range of supply liquid temperature is-5~46℃,and the interval probability in 10~40℃is 85.3%.The temperature level of bleed air and supply liquid inside liquid-cooling electronic pod shows obvious seasonal characteristics,which means from winter to spring/autumn,and to summer,the temperature of bleed air and supply liquid rise in order.As the temperature of bleed air is higher in summer,the environmental control system can make the liquid supply temperature significantly lower than the bleed air temperature.This paper concludes that the fluctuation range of the liquid supply temperature of the liquid-cooled electronic pod is obviously smaller than that of bleed temperature,which is affected by the heat capacity of the environmental control system,electronic equipment and electronic pod structure,and it is more advantageous to improve the reliability of electronic equipment.The dynamic stabilization time of the liquid supply temperature is about 5 minutes,which means that when the continuous working time is less than 5 minutes,it is necessary to carry out transient condition assessment in thermal design.

关 键 词：液冷电子吊舱 引气温度 供液温度 季节 区间概率 动态稳定时间 

分 类 号：V216[航空宇航科学与技术—航空宇航推进理论与工程]