Pressure pipeline connecting structure convenient to install and maintain

The utility model discloses a pressure pipeline connecting structure convenient to install and maintain, and belongs to the technical field of pipeline devices. Comprising a gas path element, a connector welding assembly and a pipe fitting welding assembly are arranged on the gas path element, the connector welding assembly comprises a sealing connector and a welding flange, the sealing connector is fixedly connected with the welding flange, the pipe fitting welding assembly comprises a split flange, an inner flange and a stainless steel pipe, and the inner flange is fixedly connected with the stainless steel pipe. Bolts are arranged on the split flanges, the split flanges and the welding flanges are connected through the bolts, and the split flanges press the inner flanges and the welding flanges tightly. By providing the pressure pipeline connecting structure convenient to install and maintain, the installation convenience of the whole gas circuit is improved, all sections of gas circuits are connected thro