摘要
大压比有阀线性压缩机为JT节流制冷机提供稳定的气源以及获取低温所需的压力,为了获得两级耦合的关键运行参数(运行频率、活塞行程、充气压力)对级联压缩机输出特性的影响,开展了相应的研究与测试。搭建了两级压缩机耦合实验台,通过改变工况条件,获得了两级压缩的输出特性:在运行频率均为40 Hz,满行程工作在0.215 MPa的充气压力下,获得了7.12的压比,8 mg/s的质量流量,压缩机效率为17.1%。
The valved linear compressor can provides stable helium gas with high pressure ra-tio for JT refrigerator.To obtain the influence of the key operating parameters(operating frequen-cy,piston stroke,charging pressure)on the output characteristics of the cascade valved linear compressors,the corresponding research and test are carried out.A two-stage valved linear com-pressors test platform is built.By changing the working conditions,the output characteristics of two-stage compression are obtained.Both of the two compressors operate at the frequency of 40 Hz and charging pressure of 0.215 MPa with full piston stroke.A pressure ratio of 7.12 and mass flow of 8 mg/s can be obtained with a compressor efficiency of 17.1%.
作者
丁磊
张华
沙鑫权
蒋珍华
刘少帅
吴亦农
Ding Lei;Zhang Hua;Sha Xinquan;Jiang Zhenhua;Liu Shaoshuai;Wu Yinong(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Institute of Technical Physics,Chinese Academy of Science,Shanghai 200083,China)
出处
《低温工程》
CAS
CSCD
北大核心
2021年第5期12-17,共6页
Cryogenics
基金
国家自然科学基金项目(51806231)
中国科学院战略性先导科技专项(B类)(XDB35000000)
上海市自然科学基金(No.18ZR1445600)
中国博士后科学基金资助项目(2018M630476)。
关键词
液氦温区
有阀线性压缩机
两级压缩
运行参数
输出特性
liquid helium temperature region
valved linear compressor
two-stage compres-sion
operation parameters
output characteristic
