航天返回与遥感
航天返迴與遙感
항천반회여요감
SPACECRAFT RECOVERY & REMOTE SENSING
2013年
5期
56-62
,共7页
颜吟雪%李春林%赵振明%鲁盼
顏吟雪%李春林%趙振明%魯盼
안음설%리춘림%조진명%로반
微型热管%梯形槽道%极限传热能力%试验研究
微型熱管%梯形槽道%極限傳熱能力%試驗研究
미형열관%제형조도%겁한전열능력%시험연구
grooved heat pipe%trapezoidal channel%maximum heat transfer capability%experimental in-vestigation
槽道热管是航天器较为常用的一种热控产品,其中截面特征尺寸小于5mm 的微型槽道热管主要用于空间光学遥感器 CCD 器件的散热,在设计、加工等环节均具有较高的技术难度。文章设计了一种5mm×4mm 矩形截面、内部槽道为梯形的微型热管,对热管传热性能进行了理论计算和试验验证,最终确定了较为理想的槽道几何参数。研究结果表明:该种微型热管的极限传热能力为4.77W·m,极限负载下的轴向温度均匀性优于±0.5℃。
槽道熱管是航天器較為常用的一種熱控產品,其中截麵特徵呎吋小于5mm 的微型槽道熱管主要用于空間光學遙感器 CCD 器件的散熱,在設計、加工等環節均具有較高的技術難度。文章設計瞭一種5mm×4mm 矩形截麵、內部槽道為梯形的微型熱管,對熱管傳熱性能進行瞭理論計算和試驗驗證,最終確定瞭較為理想的槽道幾何參數。研究結果錶明:該種微型熱管的極限傳熱能力為4.77W·m,極限負載下的軸嚮溫度均勻性優于±0.5℃。
조도열관시항천기교위상용적일충열공산품,기중절면특정척촌소우5mm 적미형조도열관주요용우공간광학요감기 CCD 기건적산열,재설계、가공등배절균구유교고적기술난도。문장설계료일충5mm×4mm 구형절면、내부조도위제형적미형열관,대열관전열성능진행료이론계산화시험험증,최종학정료교위이상적조도궤하삼수。연구결과표명:해충미형열관적겁한전열능력위4.77W·m,겁한부재하적축향온도균균성우우±0.5℃。
Grooved heat pipe is widely used in the field of spacecraft thermal control. The design and process of miniature grooved heat pipe for cooling CCD device with feature size less than 5mm are highly dif-ficult. In this paper, a kind of micro heat pipe is designed, whose rectangular cross section is 5mm×4mm and internal channel is trapezoidal. We calculate its maximum heat transfer capability and conduct an experimental research to make comparison with the analytical result. According to the analytical and experimental results, we determined its ideal channel geometry. The results indicate that the maximum heat transfer capability of the micro heat pipes is 4.77W·m, and the axial temperature uniformity is ±0.5℃.