Title:
METHOD AND DEVICE FOR COATING THE INNER SURFACE OF PIPELINE WITH CEMENT SAND MORTAR
Document Type and Number:
WIPO Patent Application WO/1986/002428
Kind Code:
A1
Abstract:
A method for coating the inner surface of the pipeline with the cement sand mortar provides for forming on that surface a layer (4) of the mortar which is pressed and kept by a flexible sleeve (5). Before pressing to the layer (4) of the mortar the flexible sleeve (5) is turned inside out and laid simultaneously with the layer of the mortar. A device implementing the method comprises a system (11) for feeding the cement sand mortar, a piston (3) located inside the pipeline (1) with an annular gap (12) for distribution of the layer of the mortar around the inner surface of the pipeline and a chamber (13) containing the flexible sleeve (5) inside and connected to a system (15) for feeding a fluid agent serving as a means for inserting, turning inside out and pressing the flexible sleeve (5) to the layer (4) of the mortar formed on the surface of the pipeline.
Inventors:
SHISHKIN VIKTOR VASILIEVICH (SU)
KRYAZHEVSKIKH NIKOLAI FEDOROVI (SU)
OLEINIK VIKTOR NIKOLAEVICH (SU)
SHLATGAUER BORIS IVANOVICH (SU)
MEDUNITSA VLADIMIR LEONIDOVICH (SU)
KRYAZHEVSKIKH NIKOLAI FEDOROVI (SU)
OLEINIK VIKTOR NIKOLAEVICH (SU)
SHLATGAUER BORIS IVANOVICH (SU)
MEDUNITSA VLADIMIR LEONIDOVICH (SU)
Application Number:
PCT/SU1985/000091
Publication Date:
April 24, 1986
Filing Date:
October 16, 1985
Export Citation:
Assignee:
TREST JUZHVODOPROVOD (SU)
International Classes:
B28B19/00; B29C67/00; F16L58/06; F16L58/10; (IPC1-7): F16L58/06
Foreign References:
| GB2082285A | 1982-03-03 | |||
| GB2085112A | 1982-04-21 | |||
| GB1489570A | 1977-10-19 |
Other References:
E.M. Klimovsky: "Produvka i ispytanie magistralnykh truboprovodov", 1966, Nedra (Moscow), pages 188,189,192,193,195
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