在一九五八年大跃进的凯歌声中,中国科学院物理研究所的同志们研制出我国第一台小型克劳德循环的氦液化器。近几年来,在党的自力更生方针指导下,国内一些兄弟单位自己设计制造了一些氦气制冷机及氢、氦液化器。其中广泛地应用了螺纹盘管热交换器,这是因为这种热交换器具有体积小、耐高压、有足够的效率及结构工艺简单等优 In the song of the Great Leap Forward of 1958, comrades at the Institute of Physics of the Chinese Academy of Sciences developed the first small helm liquefier in China. In recent years, under the guidance of the party’s self-reliance policy, some domestic units have designed and manufactured some helium refrigerators and hydrogen and helium liquefiers themselves. Among them, screw coil heat exchangers are widely used because of their advantages of small size, high pressure resistance, sufficient efficiency and simple structure and process.