Filling system

The invention provides a filling system. The filling system comprises a liquid storage tank and a filling pump, wherein an input end of the filling pump is connected to the liquid storage tank, an output end of the filling pump is used for being connected with a control valve, the control valve is used for being connected with an oil-gas pipeline, the filling pump is used for injecting filling media in the liquid storage tank into the oil-gas pipeline, and the filling media are liquid media which are easy to volatize or vaporize; and an exhaust valve is arranged at the input end of the fillingpump and used for exhausting gas produced by the filling media at the input end of the filling pump when the filling pump has insufficient flow. According to the filling system, the problem of insufficient flow of the filling pump due to vaporization of the filling media in the filling system is solved, and a smooth filling process can be guaranteed. 本发明提供一种加注系统，包括：储液罐和加注泵；所述加注泵的输入端连接于所述储液罐，所述加注泵的输出端用于连接控制阀，所述控制阀用于连接油气管道