FIELD: technological processes.
SUBSTANCE: invention relates to the construction of welded joints of pipelines of corrosive media. Welded joint assembly of the pipeline contains a welded seam made by manual and/or automatic welding and having a normal sectional area larger than the area of the normal section of the pipes, metal pipes with a protective coating on the inner surface and a sleeve located inside the tubes with conical sections at the ends and with a protective coating on the inner surface, thermal insulation material fixed on the outside of the cylindrical part of the sleeve, on top of which at least one L-shaped stop is fixed, the annular rubber seals at each end of the sleeve are vulcanized to the outer surface of the sleeve from its outer side and form a separate cavity with the conical sections of the sleeve. Cavity between the conical sections of the bushing and the ring rubber seals is completely filled with sealing material.
EFFECT: technical result of the claimed invention is to increase the reliability and simplify the design of the welded joint assembly of the pipeline.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PIPELINE WELDED JOINT UNIT | 2005 |
|
RU2283739C1 |
| INTERNAL INSERT FOR SEALING WELDED JOINT OF PIPELINE | 2017 |
|
RU2676548C1 |
| PERMANENT PIPE CONNECTION ASSEMBLY, AND METHOD FOR ITS FORMATION | 2011 |
|
RU2471110C1 |
| WELDED JOINT OF METAL PIPES WITH INTERNAL PLASTIC PIPE | 2013 |
|
RU2519534C1 |
| PIPE WELD WITH INTERNAL COATING | 2014 |
|
RU2570298C2 |
| METHOD OF FORMING PIPELINE WELDED JOINT | 2005 |
|
RU2283740C1 |
| PIPE WELD WITH INTERNAL COATING | 2013 |
|
RU2532473C2 |
| WELDED JOINT OF PIPES WITH INNER COATING | 2013 |
|
RU2518992C1 |
| WELD JOINT OF PIPES WITH INTERNAL CORROSION PROTECTION COATING | 2012 |
|
RU2503873C1 |
| CORROSION-RESISTANT BUSHING FOR INTERNAL PROTECTION OF PIPELINES | 2021 |
|
RU2767123C1 |
