| abstract |
The invention discloses a kind of device and methods improving the argon gas rate of recovery, the facility of liquid argon offer is provided using recycling scene, cold is provided with liquid argon, recycle cryogenic rectification method removing nitrogen, hydrogen, improve the rate of recovery of argon gas and the utilization rate of hydrogen, flow and the operation for simplifying cryogenic rectification, reduce operation energy consumption；Using integrated air nitrogen flow path, cold is generated by expanding machine, self-produced nitrogen in ice chest can reduce the limitation of regeneration gas, improve the recovery rate of recycling argon gas；In addition, also using the connection function of auxiliary condenser/evaporator, argon gas recycling flow path is subjected to Cooling capacity exchanging with air nitrogen flow path, the extra cold that expanding machine generates, which is transported to argon gas, recycles flow path, the liquid argon amount for reducing extraneous addition, to reduce the operation cost of equipment. |