两级脉冲管制冷机穿梭和泵气热损失计算分析  

SHUTTLE LOSS AND PUMPING GAS LOSS OF TWO-STAGE PULSE TUBE REFRIGERATOR

作　　者：牛强[1] 巨永林[1] 梁惊涛[1] 

机构地区：[1]中国科学院理化技术研究所低温中心,北京100080

出　　处：《真空与低温》2003年第2期109-112,123,共5页Vacuum and Cryogenics

基　　金：国家自然科学基金资助项目(50176052)。

摘　　要：脉冲管制冷机以空管取代了G-M和斯特林型制冷机中的冷端活塞,分析了由这种特点和交变流动引起的两级脉冲管制冷机的穿梭热损失和泵气热损失,以及损失的来源,并进行了详细的定量计算。The unique feature of the pulse tube refrigerator is of using a blank thin\|wall tube replacing the cold piston inside the G\|M and Stirling refrigerators. The shuttle loss and pumping gas loss of two\|stage pulse tube refrigerators originating from the empty tube under oscillating flow conditions are analyzed. The origin of the two losses is explained and the quantitative values for both losses are calculated in detail.\;

关 键 词：两级脉冲管制冷机 泵气热损失 穿梭热损失 交变流动 

分 类 号：TB651[一般工业技术—制冷工程]