Mixed refrigerant busbar pry in skid-mounted LNG (Liquefied Natural Gas) production device

The utility model discloses a mixed refrigerant busbar pry in a skid-mounted LNG (Liquefied Natural Gas) production device, which comprises a bracket, a propane conveying pipe, an ethylene conveying pipe, a nitrogen conveying pipe and a natural gas conveying pipe are arranged on the bracket in parallel, two ends of the bracket are respectively a bracket input end and a bracket output end, and a collecting pipe is arranged on the bracket at the bracket output end. The output ends of the propane conveying pipe, the ethylene conveying pipe, the nitrogen conveying pipe and the natural gas conveying pipe are all communicated to the collecting pipe; a propane filling port, a propane pipeline switching valve and a propane pipeline flowmeter are arranged on the propane conveying pipe; an ethylene filling port, an ethylene pipeline switch valve and an ethylene pipeline flowmeter are arranged on the ethylene conveying pipe; a nitrogen pipeline switch valve and a nitrogen pipeline flowmeter are arranged on the nitrogen