首页|制冷工质压力对红外用波纹管J-T制冷器制冷性能的影响研究

制冷工质压力对红外用波纹管J-T制冷器制冷性能的影响研究

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通过具体实验研究了制冷工质压力对波纹管自调式J-T制冷器制冷性能的影响.实验工况内的结论如下:在一定的压力范围内(11 MPa≤P≤23 MPa),随着工质压力的增大,应用该款制冷器的红外系统的启动时间逐步缩短,但启动加快的速率会随工质压力的增大而减小.当工质压力增大到一定程度(23 MPa≤P≤27 MPa)时,启动时间将趋于稳定.在一定的压力范围内(11 MPa≤P≤15 MPa),随着工质压力的增大,应用该款制冷器的红外系统的蓄冷时间逐步加长;但工质压力增大到一定程度(15 MPa≤P≤27 MPa)时,蓄冷时间将趋于稳定.在一定的压力范围内(11 MPa≤P≤27 MPa),随着工质压力的增大,制冷器启动时的最大流量呈线性增大趋势,运行时的稳定流量呈逐步增大趋势.本文实验研究的过程方法和研究结果具有工程借鉴意义.
Research on the Influence of Refrigerant Pressure on the Refrigeration Performance of Corrugated Tube J-T Cooler for Infrared Application
The influence of refrigerant pressure on the refrigeration performance of a corrugated tube self-ad-justing J-T cooler was studied through specific experiments.The conclusion of the experimental conditions is that within a certain pressure range(11 MPa≤P≤23 MPa),as the working fluid pressure increases,the start-up time of the infrared system using this refrigeration device gradually shortens,but the rate of acceler-ated startup will decrease with the increase of working fluid pressure.When the working fluid pressure increa-ses to a certain extent(23 MPa≤P≤27 MPa),the startup time will tend to stabilize.Within a certain pres-sure range(11 MPa≤P≤15 MPa),as the working fluid pressure increases,the storage time of the infrared system using this type of cooler gradually increases.But when the working fluid pressure increases to a certain extent(15 MPa≤P≤27 MPa),the cold storage time will tend to stabilize.Within a certain pressure range(11 MPa≤P≤27 MPa),with the increase of working fluid pressure,the maximum flow rate of the refrigera-tor increases linearly during startup,and the stable flow rate gradually increases during operation.The process,methods,and research results of this experimental study have reference significance for engineering practice.

refrigerant pressurecorrugated tube self-adjusting J-T coolerrefrigeration performanceexper-imental study

张永壮、韩蓬磊、饶启超、苏鹏翼、徐千

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华北光电技术研究所,北京 100015

制冷工质压力 波纹管自调式J-T制冷器 制冷性能 实验研究

2024

红外
中国科学院上海技术物理研究所

红外

影响因子:0.317
ISSN:1672-8785
年,卷(期):2024.45(7)
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