Fastening and sealing flange structure based on fluid control valve

The utility model relates to the technical field of sealing flange structures, in particular to a fastening sealing flange structure based on a fluid control valve, which comprises a valve seat, a first sealing flange, a second sealing flange and an electromagnetic control valve, the upper end of the valve seat is fixedly connected with the first sealing flange, and the upper end of the first sealing flange is provided with the second sealing flange through a connecting mechanism. An electromagnetic control valve is fixedly connected to the upper end of the second sealing flange, a sliding groove is formed in the upper end of the second sealing flange, and a limiting mechanism is installed on the inner side of the sliding groove; the connecting mechanism comprises a connecting plate, and the bottom end of the connecting plate is rotationally connected with a second fixing block through a rotating shaft. The sealing flanges can be fixed, bolts are not needed, in the later dismounting process, the limiting mech