초록 ▼

A method of repairing leakage in pipelines comprising the steps of forming a first and second openings (14a, 14b) in the pipeline (10) upstream and downstream, respectively, of the leakage location, inserting through the first opening (14a) a first body (C1), filling the space arrear of the first bo

A method of repairing leakage in pipelines comprising the steps of forming a first and second openings (14a, 14b) in the pipeline (10) upstream and downstream, respectively, of the leakage location, inserting through the first opening (14a) a first body (C1), filling the space arrear of the first body (C1) with a first viscose sealing material (M1), inserting through the first opening (14a) a second body (C2) arrear of the first viscose sealing material (M1) compressing the first sealing material by applying a pressure against the first and the second bodies (C1, C2) in opposite directions, causing the first and second bodies (C1, C2) and the compressed first sealing material (M1) to move in unison in the direction of the second opening (14b), and retrieving the first and second bodies (C1, C2). Preferably, the method is performed using three bodies (C1, C2, C3) and two sealing materials (M1, M2).

대표청구항 ▼

1. A system for repairing a leakage in a pipeline, the system comprising: a first body conforming to a size of the pipeline;a second body conforming to the size of the pipeline; anda sealing material comprising a hardener and at least one filler;wherein the second body is mechanically unconnected to

1. A system for repairing a leakage in a pipeline, the system comprising: a first body conforming to a size of the pipeline;a second body conforming to the size of the pipeline; anda sealing material comprising a hardener and at least one filler;wherein the second body is mechanically unconnected to the first body, such that the second body is moveable in the pipeline independently of the first body, andwherein the hardener and the at least one filler are selected such that, the hardener and the at least one filler are pre-mixable before insertion in the pipeline, and the sealing material, comprising a mixture of the hardener and the at least one filler, is configured to be located in the pipeline between the first body and the second body such that, when pressures are applied to the first body and the second body in opposite directions and the sealing material is compressed therebetween, the sealing material is configured to move along the pipeline along with the first body and the second body, thereby filling a crack or hole in the pipeline that is causing the leakage without substantially adhering to an inner surface of the pipeline in areas other than an area of the crack or hole. 2. The system of claim 1, wherein the sealing material comprises an organic polycondensate compound. 3. The system of claim 1, wherein the hardener is selected ground the group consisting of phenylenediamine and diamino-diphenylsulfone. 4. The system of claim 1, wherein the sealing material comprises a softener selected ground the group consisting of dibutyl phthalate and diphenyl phthalate. 5. The system of claim 1, wherein the sealing material comprises a filler mineral. 6. The system of claim 5, wherein the filler mineral comprises ash having a granular size between 2 and 15 microns. 7. The system of claim 1, wherein the at least one filler comprises an elastic filler having a particle size in a range of 4 to 7 mm. 8. The system of claim 1, wherein the at least one filler comprises a hard filler. 9. The system of claim 8, wherein the hard filler comprises granules of nylon having a particle size in a range of 1 to 4 mm. 10. The system of claim 1, wherein the sealing material comprises an organic polycondensate compound, a hardener, a softener, and a filler mineral. 11. The system of claim 1, wherein the sealing material is disposed in a container made of a tearable material, the container being configured to be located in the pipeline between the first body and the second body such that, when pressure is applied to the first body and the second body and the container is compressed therebetween, the container is configured to rupture and release the sealing material. 12. The system of claim 1, wherein the first body and the second body are spherical. 13. The system of claim 1, wherein the first body and the second body are spherical and made of a semi-rigid material. 14. The system of claim 1, wherein the first body and the second body are made of a polyurethane material. 15. A method of repairing a leakage in a pipeline, the method comprising: inserting, through a first opening and into the pipeline, a first body conforming to a size of the pipeline, followed by a sealing material comprising a mixture of a hardener and at least one filler, followed by a second body conforming to a size of the pipeline, wherein the second body is mechanically unconnected to the first body, such that the second body is moveable in the pipeline independently of the first body; andcompressing the sealing material by applying pressures to the first body and the second body in opposite directions, such that the sealing material moves along the pipeline along with the first body and the second body, thereby filling a crack or hole in the pipeline that is causing the leakage without substantially adhering to an inner surface of the pipeline in areas other than an area of the crack or hole. 16. The method of claim 15, further comprising retrieving the first and second bodies from the pipeline through a second opening. 17. The method of claim 15, wherein the sealing material comprises an organic polycondensate compound. 18. The method of claim 15, wherein the sealing material comprises a filler mineral. 19. The method of claim 15, wherein the sealing material comprises an organic polycondensate compound, a hardener, a softener, and a filler mineral. 20. The method of claim 15, wherein the sealing member is disposed in a container made of a tearable material, the container being configured to be located in the pipeline between the first body and the second body such that, when pressure is applied to the first body and the second body and the container is compressed therebetween, the container is configured to rupture and release the sealing material. 21. The method of claim 15, wherein the first body and the second body are spherical. 22. The method of claim 15, wherein the first body and the second body are made of a polyurethane material.