PIPE REPAIR METHOD, AND TAPE APPLICATION DEVICE FOR PIPE REPAIR Russian patent published in 2013 - IPC F16L55/168 

FIELD: machine building.

SUBSTANCE: proposed method involves cleaning of the pipe section that is subject to repair. Then, a spiral sleeve is made of continuous tape around the pipe; that sleeve is placed at some distance from the pipe surface, thus forming an annular cavity between the pipe surface and the sleeve. The annular cavity is filled with structural resin or cement grouting to provide the connection between the pipe and the spiral sleeve, or end caps are installed on both ends of the sleeve to seal the annular cavity. The device consists of application and supply units. The application unit consists of the parts, each of which is equipped with a group of rolls providing the direction of the continuous tape with a gap around the section of damaged pipe surface so that a spiral sleeve passing along axial length of the damaged section is formed. The supply unit is connected to one of the parts of the application unit and includes at least one drive roll providing the supply of continuous tape to at least one part of the application unit.

EFFECT: providing the repair of the existing pipe using an effective, reliable, low-cost and simple method.

16 cl, 15 dwg