Conversion of liquid‐nitrogen traps to mechanical refrigeration

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Conversion of liquid‐nitrogen traps to mechanical refrigeration

机译：液氮阱转化为机械制冷

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A simple technique is described which allows a reservoir‐type liquid‐nitrogen trap to be converted to continuous operation with a closed‐cycle mechanical refrigeration system. The conversion requires no internal modification to the trap and uses only standard commercial refrigeration components. Using 502 refrigerant as the working fluid, temperatures of -52 °C are readily achieved in a trap operating above a 6‐in. water‐cooled baffle and oil diffusion pump.

机译：描述了一种简单的技术，该技术可通过封闭循环机械制冷系统将储罐式液氮阱转换为连续运行。该转换不需要对疏水阀进行内部修改，仅使用标准的商用制冷组件。使用502制冷剂作为工作流体，可以在6英寸以上的疏水阀中轻松达到-52 C的温度。水冷挡板和油扩散泵。

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《Review of Scientific Instruments》 |1983年第7期|P.894-895|共2页
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Conversion of liquid‐nitrogen traps to mechanical refrigeration

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