On-site rapid repairing method for flexible sealing ring for nuclear turbine

The invention discloses an on-site rapid repairing method for a flexible sealing ring for a nuclear turbine. The on-site rapid repairing method comprises the specific steps that S1, the position, needing to be repaired, of the flexible sealing ring and the periphery of the flexible sealing ring are cleaned and dried; s2, the damage degree is checked, needed materials are prepared, and a damaged area is pretreated; s3, preparing a high-strength and wear-resistant suture line with the diameter of 0.5 mm to 1.5 mm, and dipping the suture line in a room-temperature vulcanized silicone rubber solution loaded with 35 to 40 KHZ ultrasonic waves for 40 to 60 minutes; s4, the processed suture line is connected into a suture needle in a penetrating mode, and the damaged position of the flexible sealing ring is sutured; s5, the area where the flexible sealing ring is sewn is soaked in a room-temperature vulcanized silicone rubber solution loaded with 35-40 KHZ ultrasonic waves for 30-70 min; s6, the treated flexible sea