Nozzle intensity tester of steam turbine

The utility model relates to a turbine nozzle strength test device, which includes a screw bolt, a nut, a press plate, a sleeve, a lock ring, a seal ring and a flange. A groove is arranged near the lower part of the nozzle opening, the flange with the seal ring is arranged under the nozzle groove, the groove is embedded with a lock ring which can be detached into a plurality of cushions, the sleeve is plugged into the inner circle of the lock ring, radially resisted against the cushion and placed on the flange, the press plate is placed on the sleeve, the press plate is arranged at the nozzle opening, one end of the screw bolt is screwed on the flange, and the other end of the screw bolt is passed through the sleeve and the press plate and fastened by the nut. The lock ring is divided into 4 parts, and the two dividing lines are parallel and parallel to the diameter line. The press plate is U-shaped. The utility model is characterized in convenient installation, material saving, low cost and high seal reliabi