A new type of liquid argon vehicle filling pump seal gas system

Abstract

This invention discloses a novel liquid argon filling pump sealing gas system, belonging to the field of metallurgical air separation oxygen production technology. It includes a liquid argon storage tank, a booster, and a liquid argon filling pump. A liquid phase outlet at the lower end of the liquid argon storage tank is connected to the liquid argon filling pump via a first pipe to fill the pump with liquid argon. Another liquid phase outlet at the lower end of the liquid argon storage tank is connected to the booster via a second pipe. A gas phase outlet at the upper end of the liquid argon storage tank is connected to the booster via a third pipe. The booster is connected to the sealing gas interface of the liquid argon filling pump via an instrument pipe to supply a sealing gas source. The instrument pipe is connected to the second pipe via a tee. The gas phase outlet of the liquid argon storage tank forms a vent outlet at the top of the liquid argon storage tank via a tee on the third pipe. Gaseous argon from the upper end of the liquid argon storage tank enters the booster, is reheated to room temperature by the booster, and then enters the sealing gas interface of the liquid argon filling pump via the instrument pipe as a sealing gas. This system ensures the purity of the liquid argon product, promotes resource reuse, and effectively reduces costs.

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