The using of gas-dynamic coolers at cryogenic temperatures.

The examples of application of the cold sources without moving parts in the technologies of rare gases production are given. For example, during the purification of Ne-He-concentrate from nitrogen, the reduction of the mixture phase equilibrium temperature allows reducing in half the content of secondary component (N2) at the output of the phase separator. Wherein this positive effect is achieved by using the existing pressure drop and does not require additional costs.

本文给出了无运动部件冷源（cold sources without moving parts）在稀有气体生产工艺中的应用实例。例如，在对氖氦（Ne-He）浓缩物进行脱氮提纯的过程中，降低混合气体的相平衡温度（phase equilibrium temperature），可使相分离器（phase separator）出口处次要组分（氮气N₂）的含量降低一半。该正向效果仅通过利用现有压降即可实现，无需额外投入成本。