Nitrogen pressurizing device of parallel reactor

The utility model discloses a nitrogen pressurizing device of a parallel reactor. The nitrogen pressurizing device comprises a pressure buffer tank and a high-pressure gas bottle, wherein a pressurizing solenoid valve and a pressure regulating solenoid valve are arranged at the position of a gas pressurizing port, the pressurizing solenoid valve is connected with the pressure buffer tank and the high-pressure gas bottle sequentially, a pressure reducing valve is arranged between the pressure buffer tank and the high-pressure gas bottle, the pressurizing solenoid valve is connected with the pressure regulating solenoid valve in parallel, a check valve and a pressurizing fine-adjustment valve are arranged between the pressurizing solenoid valve and the gas pressurizing port, a filter is arranged between the pressurizing fine-adjustment valve and the gas pressurizing port, a pressure fine-adjustment valve is arranged between the pressure regulating solenoid valve and the gas pressurizing port, and a filter is ar