CN2731227Y - Gas-enriched conveying pipe with resistance-reducing wearing-resisting inner coating - Google Patents
Gas-enriched conveying pipe with resistance-reducing wearing-resisting inner coating Download PDFInfo
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- CN2731227Y CN2731227Y CN 200420089106 CN200420089106U CN2731227Y CN 2731227 Y CN2731227 Y CN 2731227Y CN 200420089106 CN200420089106 CN 200420089106 CN 200420089106 U CN200420089106 U CN 200420089106U CN 2731227 Y CN2731227 Y CN 2731227Y
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Abstract
The utility model relates to a gas-enriched conveying pipe with resistance-reducing wearing-resisting inner coating, composed of a steel pipe, a reserved welding zone, a resistance-reducing wearing-resisting inner coating, an epoxy powder anticorrosive outer coating, a polypropylene adhesive coating, a polypropylene outer protective coating, an inner mouth repairing magnet ring, a polythene bottom band, an epoxy ester resin adhesive coating, a polythene face band and a hot melt type adhesive coating. The resistance-reducing wearing-resisting inner coating has good shear strength, wear resistance and solvent soaking resistance, in particular the shear strength is as high as 14.2 MPa, which is higher than the conventional dry air type resistance-reducing wearing-resisting coating; the resistance-reducing wearing-resisting inner coating has simple production process, suitable for being used for natural gas-enriched conveying pipelines, which can greatly reduce the conveying resistance of the pipelines and raise the conveying efficiency.
Description
Technical field
The utility model relates to the wear-resisting internally coated rich gas delivery pipe of a kind of drag reduction, is applicable to rock gas rich gas conveyance conduit.
Technical background
Existing gas pipeline, adopt the interior drag reduction coating of macromolecule resin and polyamide curing agent system, its deficiency be the coating shear strength lower, only be 5.4MPa, and wear resistance, anti-solvent soaking performance are bad, mainly are applicable to the dry gas conveyance conduit.And rich gas contains the heavy hydrocarbon pneumatolytic branch of more amount on forming, and is to adopt high-pressure delivery technology, therefore drag-reducing wear-resistant paint is had higher requirement at aspects such as adhesion, wear resistance and anti-solvent soakings.
The model utility content
The technical problems to be solved in the utility model: avoid above-mentioned deficiency of the prior art and the wear-resisting internally coated rich gas delivery pipe of drag reduction that provides a kind of internal joint patch easy construction, undercoating to have good shear strength, wear resistance, anti-solvent soaking.
The technical solution adopted in the utility model
The wear-resisting internally coated rich gas delivery pipe of a kind of drag reduction of the present utility model, by steel pipe 1, the reservation welding section 2 at steel pipe 1 two ends is formed, it is characterized in that drag reduction wear resistant coating 3 being arranged at steel pipe 1 internal surface, outer surface at steel pipe 1 has epoxy powder external anti-corrosion layer 4 in turn, polypropylene adhesive layer 5, polypropylene outer protective layer 6, in steel pipe 1 one ends, internal joint patch magnet ring 7 is arranged near pipe end, outer surface at internal joint patch magnet ring 7 has polyethylene tail band 8 in turn, epoxy ester resin glue-line 9, polyethylene wears 10 and hot-melt adhesive layer 11, steel pipe 1 long 8～15m, bore 800～1300mm, wall thickness 14～30mm, reserve each long 100mm of welding section 2 every ends, the thickness of drag reduction wear resistant coating 3 is 0.06～0.12mm, the thickness of epoxy powder external anti-corrosion layer 4 is 0.08～0.18mm, the thickness of polypropylene adhesive layer 5 is 0.02～0.06mm, the thickness of polypropylene outer protective layer 6 is 1.5～2.5mm, the thickness of internal joint patch magnet ring 7 is 1～5mm, width is 100～300mm, the thickness of polyethylene tail band 8 is 0.2～0.5mm, the thickness of epoxy ester resin glue-line 9 is 1.2～2.5mm, it is 0.2～0.5mm that polyethylene is worn 10 thickness, and the thickness of hot-melt adhesive layer 11 is 0.02～0.06mm.
The wear-resisting internally coated rich gas delivery pipe of more excellent drag reduction, it is characterized in that steel pipe 1 long 12m, bore 1016mm, wall thickness 14.6mm, the thickness of drag reduction wear resistant coating 3 is 0.09mm, the thickness of epoxy powder external anti-corrosion layer 4 is 0.15mm, the thickness of polypropylene adhesive layer 5 is 0.03mm, the thickness of polypropylene outer protective layer 6 is 2.2mm, the thickness of internal joint patch magnet ring 7 is 2mm, width is 260mm, the thickness of polyethylene tail band 8 is 0.3mm, the thickness of epoxy ester resin glue-line 9 is 2.0mm, it is 0.3mm that polyethylene is worn 10 thickness, and the thickness of hot-melt adhesive layer 11 is 0.03mm.
The wear-resisting internally coated rich gas delivery pipe manufacture process of drag reduction of the present utility model is as follows: with internal surface, the outer surface derusting by sandblasting of steel pipe 1, the internal surface spraying drag reduction wearing layer 3 at steel pipe 1 uses rich gas type drag-reducing wear-resistant paint to form coating; Outer surface at steel pipe 1 at first sprays epoxy powder external anti-corrosion layer 4, hot melt in turn then, polypropylene adhesive layer 5 and polypropylene outer protective layer 6 are twined in extruding, at first twine polyethylene tail band 8 at internal joint patch magnet ring 7 outer surfaces, then brush the epoxy ester resin glue-line, and twine the polyethylene have hot-melt adhesive layer 11 and wear 10, be positioned over then in pipeline one end near the pipe end place, be not subjected to welding heat affected being advisable during with welding, the pipeline welding is carried out at the wear-resisting internally coated rich gas delivery pipe of the above-mentioned prefabricated drag reduction scene of being transported to, by the outer magnetic force generator heat hot melting adhesive layer 11 of pipeline, mobile internal joint patch magnet ring 7 is to weld, and make it that temperature raises and appropriateness expands, extruding hot-melt adhesive layer 11 is bonded on the inner tube wall, and make polyethylene tail band 8, polyethylene is worn 10 fusings, make the epoxy ester resin curable adhesive layer simultaneously, finish the internal joint patch operation and become pipeline.
Drag reduction wear resistant coating 3 is to form coating by the made coating of the curing agent of the mixed solution of solid epoxy and acylamino amine resin mixed solution through the spraying normal temperature cure.This coating has extremely good shear strength, wear resistance and anti-solvent soaking, and its shear strength can reach 14.2MPa.
The utility model beneficial effect compared with prior art:
1, the wear-resisting internally coated rich gas delivery pipe of drag reduction has good drag reduction and antiseptic property, can reduce the transporting resistance of rich gas conveyance conduit significantly, improves transfer efficiency, and guarantees long-term delivery safety.The wear-resisting undercoating 3 of drag reduction has good shear strength, wear resistance and anti-solvent soaking, and its shear strength can reach 14.2MPa.
2, production technology is simple, and price performance is good, and the internal joint patch easy construction can be used for rich gas conveyance conduit engineering.
Description of drawings
Fig. 1 is the longitudinal sectional view of the wear-resisting internally coated rich gas delivery pipe of drag reduction of the present utility model.
Among the figure: the 1-steel pipe; 2-reserves welding section; 3-drag reduction wear resistant coating; 4-epoxy powder external anti-corrosion layer; 5-polypropylene adhesive layer; 6-polypropylene outer protective layer; 7-internal joint patch magnet ring; 8-polyethylene tail band; 9-epoxy ester resin glue-line; The 10-polyethylene is worn; 11-hot-melt adhesive layer.
Embodiment 1
The wear-resisting internally coated rich gas delivery pipe of drag reduction, steel pipe 1 long 12m, bore 1016mm, wall thickness 14.6mm, the thickness of drag reduction wear resistant coating 3 is 0.09mm, the thickness of epoxy powder external anti-corrosion layer 4 is 0.15mm, the thickness of polypropylene adhesive layer 5 is 0.03mm, the thickness of polypropylene outer protective layer 6 is 2.2mm, the thickness of internal joint patch magnet ring 7 is that 2mm, width are 260mm, the thickness of polyethylene tail band 8 is 0.3mm, the thickness of epoxy ester resin glue-line 9 is 2.0mm, it is 0.3mm that polyethylene is worn 10 thickness, and the thickness of hot-melt adhesive layer 11 is 0.03mm.Its drag reduction wear resistant coating 3 is to form coating by the made coating of the curing agent of the mixed solution of solid epoxy and acylamino amine resin mixed solution through the spraying normal temperature cure.This coating has good shear strength, wear resistance and anti-solvent soaking, and its shear strength can reach 14.2MPa.
Claims (2)
1, the wear-resisting internally coated rich gas delivery pipe of a kind of drag reduction, by steel pipe (1), the reservation welding section (2) at steel pipe (1) two ends is formed, it is characterized in that drag reduction wear resistant coating (3) being arranged at steel pipe (1) internal surface, outer surface at steel pipe (1) has epoxy powder external anti-corrosion layer (4) in turn, polypropylene adhesive layer (5), polypropylene outer protective layer (6), in steel pipe (1) one end, internal joint patch magnet ring (7) is arranged near pipe end, outer surface at internal joint patch magnet ring (7) has polyethylene tail band (8) in turn, epoxy ester resin glue-line (9), it is mutually bonding with steel pipe (1) internal surface with hot-melt adhesive layer (11) that polyethylene is worn (10), long 8～the 15m of steel pipe (1), bore 800～1300mm, wall thickness 14～30mm, reserve each long 100mm of the every end of welding section (2), the thickness of drag reduction wear resistant coating (3) is 0.06～0.12mm, the thickness of epoxy powder external anti-corrosion layer (4) is 0.08～0.18mm, the thickness of polypropylene adhesive layer (5) is 0.02～0.06mm, the thickness of polypropylene outer protective layer (6) is 1.5～2.5mm, the thickness of internal joint patch magnet ring (7) is 1～5mm, width is 100～300mm, the thickness of polyethylene tail band (8) is 0.2～0.5mm, the thickness of epoxy ester resin glue-line (9) is 1.2～2.5mm, the thickness that polyethylene is worn (10) is 0.2～0.5mm, and the thickness of hot-melt adhesive layer (11) is 0.02～0.06mm.
2, the wear-resisting internally coated rich gas delivery pipe of drag reduction according to claim 1, it is characterized in that the long 12m of steel pipe (1), bore 1016mm, wall thickness 14.6mm, the thickness of drag reduction wear resistant coating (3) is 0.09mm, the thickness of epoxy powder external anti-corrosion layer (4) is 0.15mm, the thickness of polypropylene adhesive layer (5) is 0.03mm, the thickness of polypropylene outer protective layer (6) is 2.2mm, the thickness of internal joint patch magnet ring (7) is 2mm, width is 260mm, the thickness of polyethylene tail band (8) is 0.3mm, the thickness of epoxy ester resin glue-line (9) is 2.0mm, the thickness that polyethylene is worn (10) is 0.3mm, and the thickness of hot-melt adhesive layer (11) is 0.03mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089106 CN2731227Y (en) | 2004-08-27 | 2004-08-27 | Gas-enriched conveying pipe with resistance-reducing wearing-resisting inner coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089106 CN2731227Y (en) | 2004-08-27 | 2004-08-27 | Gas-enriched conveying pipe with resistance-reducing wearing-resisting inner coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731227Y true CN2731227Y (en) | 2005-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420089106 Expired - Lifetime CN2731227Y (en) | 2004-08-27 | 2004-08-27 | Gas-enriched conveying pipe with resistance-reducing wearing-resisting inner coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN2731227Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818836B (en) * | 2010-02-09 | 2011-09-28 | 北京航空航天大学 | Roll forming method for shape of inner wall coating of natural gas pipeline and roll forming device thereof |
| CN103968158A (en) * | 2013-02-01 | 2014-08-06 | 韩正 | Design method for wall thickness selection of city natural gas pipelines |
| CN106640877A (en) * | 2016-12-31 | 2017-05-10 | 重庆安特管业有限公司 | Sewage treatment tank connecting structure |
-
2004
- 2004-08-27 CN CN 200420089106 patent/CN2731227Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818836B (en) * | 2010-02-09 | 2011-09-28 | 北京航空航天大学 | Roll forming method for shape of inner wall coating of natural gas pipeline and roll forming device thereof |
| CN103968158A (en) * | 2013-02-01 | 2014-08-06 | 韩正 | Design method for wall thickness selection of city natural gas pipelines |
| CN106640877A (en) * | 2016-12-31 | 2017-05-10 | 重庆安特管业有限公司 | Sewage treatment tank connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140827 Granted publication date: 20051005 |