Purification system for SF6 gas

The utility model discloses a purification system for SF6 (sulfur hexafluoride) gas. The purification system for SF6 gas comprises: a liquid tank, which is provided with a gas inlet and a liquid outlet; the refrigerating machine is provided with a condensing coil, and the condensing coil is arranged in the liquid tank; the waste gas tank is provided with an emptying port, and the waste gas tank is arranged at the upper end of the liquid tank; the waste gas tank is communicated with the liquid tank through a connecting pipeline, and an isolating ball valve is arranged on the connecting pipeline. The SF6 gas purification system provided by the utility model can meet the gas quality required by a test through one-time purification, is quick, efficient, simple and practical, meets the industrial production use rhythm, is low in cost, high in efficiency and quick to realize, has low requirements on operators, has no safety barrier, and has extremely high applicability. 本实用新型揭示了一种用于SF6气体的提纯系统。所述用于SF6气体的提纯系统，包括：液态罐，