Method for servicing a steam generator
Apparatus for working on tubesheets
Suspension of tools for sleeving of tubes of steam generator
Sleeving of tubes of steam generator
Flexible tube expander extension assembly
Process for remotely lining a steam generator tube of a pressurized water nuclear reactor
Apparatus and method for simultaneously loading a reinforcing sleeve and mandrel into a tube Patent #: 4829648
ApplicationNo. 276846 filed on 11/28/1988
US Classes:29/727, Including deforming means29/723, Nuclear device29/890.051Boiler making
ExaminersPrimary: Hall, Carl E.
Assistant: Cuda, Irene
Attorney, Agent or Firm
International ClassB23P 015/26
Foreign Application Priority Data1986-04-30 FR
AbstractA curved structure (20) with two flat side flanges and a curved bottom (23') connecting the flanges, each of which is associated with a curved guiding slide (24a,24b)is used for lining a peripheral tube of a steam generator. A trolley (21) having wheels (25, 26) interacting with the guiding slides moves in the curved structure and is guided along the inner wall of the water box of the steam generator. A rigid roller-expanding tool (24) is connected to a drive mechanism carried by the trolley by a flexible cable, and is guided by a guiding device after it leaves the curved structure.