Infrared and Laser Engineering, Volume. 54, Issue 1, 20240221(2025)
Preliminary study on test method and life prediction of single failure mechanism of rotary Stirling cooler
Figures & Tables(6)
Table 1. Description of sample 80 ℃ storage test
View tableView in ArticleTable 1. Description of sample 80 ℃ storage test
Sample number Usage during storage Storage time/h Description of test 1 a） The sample has carried out product acceptance test; b） The average storage temperature of the samples in the field is about 20 ℃. 5760 The leakage rate, cooling time and power consumption of each periodic test sample are all within the qualified range. 2 a） The sample has carried out product acceptance test; b） The samples are mainly used for intermittent commissioning in the laboratory, and the time is about 1 to 2 years; c） The samples will be placed on the laboratory shelf in the later stage at an average ambient temperature of about 23 ℃. 1440 After 1440 h storage,the leakage rate of the sample is normal and the dewar vacuum fails. After separation, the cooling time and power consumption of the cooler are tested by the test dewar.
Table 2. Description of the temperature cycle test of sample under the −55-80 ℃
View tableView in ArticleTable 2. Description of the temperature cycle test of sample under the −55-80 ℃
Sample number Usage during storage Number of cycles/times Description of test 3 a） The sample has carried out product acceptance test; b） The average temperature difference between high and low in the storage environment of the samples is about 10 ℃, and the highest temperature is about 30 ℃. 330 After the 330th time, the sample fails due to excessive leakage rate. 4 a） The sample has carried out product acceptance test; b） The samples are mainly used for intermittent commissioning in the laboratory, and the time is about 1 to 2 years; c） The samples will be placed on the laboratory shelf in the later stage, with the average temperature difference between high and low about 5 ℃ and the highest temperature about 28 ℃. 270 After the 270th time, the sample fails due to excessive leakage rate.
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Haiying LI, Kai ZHANG, Yun ZHA, Chonghua JIANG, Jian HUAN, Wenli ZHAO. Preliminary study on test method and life prediction of single failure mechanism of rotary Stirling cooler[J]. Infrared and Laser Engineering, 2025, 54(1): 20240221
Paper Information
Category: 红外技术及应用
Received: Oct. 27, 2024
Accepted: --
Published Online: Feb. 12, 2025
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