SU646136A1 - Pipeline lining method - Google Patents
Pipeline lining methodInfo
- Publication number
- SU646136A1 SU646136A1 SU762429298A SU2429298A SU646136A1 SU 646136 A1 SU646136 A1 SU 646136A1 SU 762429298 A SU762429298 A SU 762429298A SU 2429298 A SU2429298 A SU 2429298A SU 646136 A1 SU646136 A1 SU 646136A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- plastic
- pipe
- pipeline
- pressure
- scourge
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
1one
Изобретение относитс к получению многослойных труб, а именно к футерованию внутренней поверхности металлических трубопроводов пластмассовыми трубами при их ремонте, и может быть использовано дл восстановлени или защиты от коррозии трубопроводовThe invention relates to the preparation of multilayer pipes, namely, the lining of the inner surface of metal pipelines with plastic pipes during their repair, and can be used to restore or protect pipelines from corrosion.
Известен способ футеровани металлических трубопроводов, включающий подготовку их внутренней поверхности установку внутри трубопровода плети пластмассовых труб и цементирование межтрубного пространства l. Причем тампонаж межтрубного пространства ведетс при остаточном давлении после опрессовки, т.е. при созданном противодавлении в трубном пространстве в пределах 3-4 кГс/см .The known method of lining metal pipelines, including the preparation of their inner surface, installation of plastic pipes inside the pipeline and cementing the annulus l. Moreover, the annular space cementing is carried out at residual pressure after crimping, i.e. with the created counter-pressure in the tube space in the range of 3-4 kgf / cm.
При этом при закачка тампонирующей смеси, предварительно созданное давление внутри тампонирующей .среды производ т при давлении, не превышак цем 5-6 кГс/см. Это не дает возможности значительного увеличени длины трубопровода, тампонируемого за один прием, At the same time, when a tamponing mixture is injected, the previously created pressure inside the tamponing medium is produced at a pressure not exceeding 5-6 kgf / cm. This does not allow for a significant increase in the length of the pipeline plugged in at one time,
Целью изобретени вл етс обеспечение возможности увеличени длины трубопровода, тампонируемого за одинThe aim of the invention is to provide the possibility of increasing the length of the pipeline plugged in one
прием, при сохранении герметичности полиэтиленовой трубы.reception, while maintaining the integrity of the polyethylene pipe.
Дл этого по предлагаемому способу одновременно с закачкой тампонирующего материала в межтрубное пространство закачивают жидкость внутрь пластмассовой плети, причем давление в межтрубном пространстве и в пластмассовой плети поддерживают приблизительно равное.For this, according to the proposed method, simultaneously with the injection of plugging material into the annular space, a fluid is pumped into the inside of the plastic whip, and the pressure in the annular space and in the plastic whip is maintained approximately equal.
Разность давлений не превышает допустимых на см тие или разрыв пластмассовой трубы. Дл труб из полиэтилена низкой плотности наружным диаметром НО мм при толщине стенки 6 мм разность давлений может колебатьс в пределе 3-6 кГс/см2.The pressure difference does not exceed the allowable for contact or rupture of the plastic pipe. For pipes of low density polyethylene with an outer diameter of HO mm with a wall thickness of 6 mm, the pressure difference can vary in the range of 3-6 kgf / cm2.
00
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762429298A SU646136A1 (en) | 1976-12-14 | 1976-12-14 | Pipeline lining method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762429298A SU646136A1 (en) | 1976-12-14 | 1976-12-14 | Pipeline lining method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU646136A1 true SU646136A1 (en) | 1979-02-05 |
Family
ID=20686376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762429298A SU646136A1 (en) | 1976-12-14 | 1976-12-14 | Pipeline lining method |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU646136A1 (en) |
-
1976
- 1976-12-14 SU SU762429298A patent/SU646136A1/en active
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