CN201437869U - Steel pipe with corrosion-resistant anti-drag and abrasion-resistant coat - Google Patents
Steel pipe with corrosion-resistant anti-drag and abrasion-resistant coat Download PDFInfo
- Publication number
- CN201437869U CN201437869U CN2009201090048U CN200920109004U CN201437869U CN 201437869 U CN201437869 U CN 201437869U CN 2009201090048 U CN2009201090048 U CN 2009201090048U CN 200920109004 U CN200920109004 U CN 200920109004U CN 201437869 U CN201437869 U CN 201437869U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- resistant
- coating
- thickness
- drag reduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The utility model relates to a steel pipe with a corrosion-resistant anti-drag and abrasion-resistant coat, which is applied to the petroleum and natural gas transportation pipeline, which consists of a steel pipe, two reserved welding sections on two ends of the steel pipe, an abrasion-resistant anti-drag coat for a long gas transmission pipeline, a liquid solvent-free epoxy coat for a long gas transmission pipeline, an inorganic zinc metasilicate weldable internal coat and an inorganic zinc metasilicate weldable outer coat (6). The steel pipe has the advantages of excellent anti-drag abrasion resistance, excellent adhesion, salt spray resistance, chemical agent resistance, anti-impact strength and external current cathode protection. The steel pipe can be used for the construction of long gas transmission pipelines and long oil transmission pipelines.
Description
Technical field
The utility model relates to oil, natural gas transmission pipeline; be particularly related to long defeated oil, natural gas line with burying; be a kind of steel pipe corrosion-resistant and the drag reduction wear resistant coating that has, it is good, good and improve the pipeline of transfer rate with the cathodic protection concertedness of impressed current to have corrosion resistance.
Background technique
Existing steel, bend pipe generally do not have inner anticorrosioning coating, or just adopt common anticorrosion with coat, and outer anticorrosion employing anticorrosive paint such as epoxide coal bituminous grade or shrink belt, Cold winding band carry out anticorrosion.For the long-distance transport pipes that bury ground, the many and internal surface of bend pipe does not have the effect of good corrosion protection and minimizing transporting resistance without corrosion-inhibiting coating or with common coating; And the epoxide coal bituminous anticorrosive paint that waits of outer anticorrosion use; exist and to be difficult to the shortcoming that is complementary with cathodic protection; under the situation of galvanization protection; coating very easily comes off, damages; shrink belt, the anticorrosion corresponding priming paint of brushing that needs of Cold winding band; the pipeline construction complexity, to workmen's technical requirements height, and easily form disadvantages such as hollowing.
The model utility content
The purpose of this utility model is: a kind of steel pipe corrosion-resistant and the drag reduction wear resistant coating that has is provided; adopt the protection of pipe inside and outside wall coating and two ends weldable coating layer, make that pipeline has that good drag reduction is wear-resisting, adhesion, salt spray resistance, chemical-resistant reagent, impact strength and be complementary with impressed current cathodic protection.Overcome the deficiency that the prior art floating coat very easily comes off, damages.
The technical solution adopted in the utility model is: have steel pipe corrosion-resistant and the drag reduction wear resistant coating, comprise steel pipe, it is characterized in that: the reservation welding section is arranged at the two ends of steel pipe, scribble long gas pipeline with wear-resisting drag reduction undercoating at the internal surface of steel pipe, outer surface at steel pipe scribbles long gas pipeline liquid non-solvent epoxy external coating, scribble inorganic zinc silicate at the internal surface of the reservation welding section at steel pipe two ends and can weld undercoating, have inorganic zinc silicate can weld external coating at the outer surface of the reservation welding section at steel pipe two ends.
The external diameter of described steel pipe between 325～1600mm, wall thickness is 16～32mm, the long respectively 80～200mm of welding section is reserved at two ends, long gas pipeline is 0.06～0.1mm with the internally coated thickness of wear-resisting drag reduction, long gas pipeline is 0.5～2mm with the thickness of liquid non-solvent epoxy external coating, it is 0.04～0.06mm that inorganic zinc silicate can weld internally coated thickness, and the thickness that inorganic zinc silicate can weld external coating is 0.04～0.06mm.
Described steel pipe comprises straight steel pipe and curved steel pipe, i.e. bend pipe.
The steel pipe manufacture process that has corrosion-resistant and drag reduction wear resistant coating is as follows:
With the derusting by sandblasting of steel pipe inner and outer surface, at the long gas pipeline of the internal surface of steel pipe spraying with wear-resisting drag reduction undercoating, the long gas pipeline of outer surface spraying liquid non-solvent epoxy external coating at steel pipe, undercoating can be welded at reservation welding section internal surface spraying inorganic zinc silicate, external coating can be welded at reservation welding section outer surface spraying inorganic zinc silicate.At the scene this steel pipe is made pipeline with being welded to connect.
The beneficial effects of the utility model:
1, interior barrier coating uses long gas pipeline with wear-resisting drag reduction coating, has both protected steel pipe not corroded, and can improve the gas transmission rate of pipeline again, reduces the operation cost of pipeline.
2, outer anti-corrosive coating adopts long gas pipeline with liquid non-solvent epoxy coating, has simplified anticorrosion construction, has improved the corrosion resistance of steel pipe, and can act synergistically with the cathodic protection that impressed current provides, thereby guarantees that pipeline is long-term, safe operation.
3, reserve the inner and outer surface coating inorganic zinc silicate weldable coating layer of welding section, can prevent to reserve welding section before pipeline welds repaired mouth further corrodes, the welding slag that produces during the pipeline welding is easy to be cleaned out, thereby improves the quality of pipeline repaired mouth, makes pipeline keep good antiseptic effect.
Description of drawings
Fig. 1 is the longitudinal section schematic representation that has the steel pipe of corrosion-resistant and drag reduction wear resistant coating.
Among the figure, 1. steel pipe is 2. reserved welding section, and 3. long gas pipeline is with wear-resisting drag reduction undercoating, 4. long gas pipeline usefulness liquid non-solvent epoxy external coating, and 5. inorganic zinc silicate can weld undercoating, and 6. inorganic zinc silicate can weld external coating.
Embodiment
Embodiment 1: with an external diameter be having of 1219mm steel pipe corrosion-resistant and the drag reduction wear resistant coating be example, the utility model is described in further detail.
Consult Fig. 1.The utility model steel pipe 1 is a straight steel pipe.The external diameter of steel pipe 1 is 1219mm, wall thickness 22mm, reserving welding section 2 length is 150mm, long gas pipeline is 0.07mm with wear-resisting drag reduction undercoating 3 thickness, long gas pipeline is 1.2mm with the thickness of liquid non-solvent epoxy external coating 4, the thickness that inorganic zinc silicate can weld undercoating 5 is 0.05mm, and the thickness that inorganic zinc silicate can weld external coating 6 is 0.05mm.
Long gas pipeline forms with the liquid solventless epoxy coating spraying that liquid non-solvent epoxy external coating 4 adopts Tianjin Cnpc Boxing Engineering Technology Co., Ltd. to sell, and other material market all has production marketing.
Embodiment 2: with the basic identical difference of the utility model be: what steel pipe 1 adopted is curved steel pipe.
Claims (5)
1. one kind has steel pipe corrosion-resistant and the drag reduction wear resistant coating, comprise steel pipe (1), it is characterized in that: reservation welding section (2) is arranged at the two ends of steel pipe (1), scribble long gas pipeline with wear-resisting drag reduction undercoating (3) at the internal surface of steel pipe (1), outer surface at steel pipe (1) scribbles long gas pipeline liquid non-solvent epoxy external coating (4), scribble inorganic zinc silicate at the internal surface of the reservation welding section (2) at steel pipe (1) two ends and can weld undercoating (5), have inorganic zinc silicate can weld external coating (6) at the outer surface of the reservation welding section (2) at steel pipe (1) two ends.
2. according to claim 1ly have a steel pipe corrosion-resistant and the drag reduction wear resistant coating, it is characterized in that: the external diameter of described steel pipe (1) between 325～1600mm, wall thickness is 16～32mm, the long respectively 80～200mm of welding section (2) is reserved at two ends, long gas pipeline is 0.06～0.1mm with the thickness of wear-resisting drag reduction undercoating (3), long gas pipeline is 0.5～2mm with the thickness of liquid non-solvent epoxy external coating (4), the thickness that inorganic zinc silicate can weld undercoating (5) is 0.04～0.06mm, and the thickness that inorganic zinc silicate can weld external coating (6) is 0.04～0.06mm.
3. according to claim 1ly have a steel pipe corrosion-resistant and the drag reduction wear resistant coating, it is characterized in that: described steel pipe (1) is a straight steel pipe.
4. according to claim 1ly have a steel pipe corrosion-resistant and the drag reduction wear resistant coating, it is characterized in that: described steel pipe (1) is curved steel pipe.
5. describedly have a steel pipe corrosion-resistant and the drag reduction wear resistant coating according to claim 1,2,3 or 4, it is characterized in that: the external diameter of steel pipe (1) pipe is 1219mm, wall thickness 22mm, reserve the long 150mm of welding section (2), long gas pipeline is 0.07mm with wear-resisting drag reduction coating (3) thickness, long gas pipeline is 1.2mm with the thickness of liquid non-solvent epoxy coating (4), the thickness that inorganic zinc silicate can weld undercoating (5) is 0.05mm, and the thickness that inorganic zinc silicate can weld external coating (6) is 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201090048U CN201437869U (en) | 2009-06-26 | 2009-06-26 | Steel pipe with corrosion-resistant anti-drag and abrasion-resistant coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201090048U CN201437869U (en) | 2009-06-26 | 2009-06-26 | Steel pipe with corrosion-resistant anti-drag and abrasion-resistant coat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437869U true CN201437869U (en) | 2010-04-14 |
Family
ID=42399843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201090048U Expired - Lifetime CN201437869U (en) | 2009-06-26 | 2009-06-26 | Steel pipe with corrosion-resistant anti-drag and abrasion-resistant coat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405419A (en) * | 2019-07-29 | 2019-11-05 | 中国石油集团渤海石油装备制造有限公司 | A kind of preparation method of short ruler anti-corrosive steel tube |
-
2009
- 2009-06-26 CN CN2009201090048U patent/CN201437869U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405419A (en) * | 2019-07-29 | 2019-11-05 | 中国石油集团渤海石油装备制造有限公司 | A kind of preparation method of short ruler anti-corrosive steel tube |
| CN110405419B (en) * | 2019-07-29 | 2020-06-19 | 中国石油集团渤海石油装备制造有限公司 | Preparation method of short anticorrosive steel pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205402096U (en) | Based on inside and outside spraying epoxy powder and integrated steel pipe of mouth of pipe inside lining aseptic technic | |
| CN201475517U (en) | Anti-corrosion tube with inner epoxy powder and outer three-layer PE composite coating | |
| CN202338709U (en) | Anti-corrosion leakage prevention metal pipe joint | |
| CN2893362Y (en) | Seawater corrosion resisting modified epoxy ceramic anticorrosion layer seawater filling pipe | |
| CN2818982Y (en) | Polyurethane foaming thermal-insulative pipe with polyurea coating as mouth | |
| CN205173859U (en) | Novel steel pipe spare of three -layer polypropylene outer anti -corrosion coating | |
| CN202521074U (en) | External corrosion-resistant pipeline with double modified asphalt polyolefin layers | |
| CN202158307U (en) | Pipeline with anti-corrosive layer compounded by double-layer fusion bonded epoxy and polyethylene | |
| CN201437869U (en) | Steel pipe with corrosion-resistant anti-drag and abrasion-resistant coat | |
| CN104482328A (en) | Anticorrosion insulation multilayer system for deep-sea steel delivery pipes | |
| CN201925614U (en) | Submarine anti-corrosion and resistance reducing delivery pipeline | |
| CN204785312U (en) | Well water pipeling and normal water conveying system | |
| CN202746793U (en) | Steel tube with solvent-free epoxy inner ant-dragging anticorrosion coating | |
| CN201137793Y (en) | Steel pipe welding interface anti-corrosive protection joint | |
| CN210600684U (en) | Steel pipe with good corrosion prevention effect | |
| CN201041275Y (en) | Drinking water conveyor pipe with erosion-proof coating | |
| CN206280616U (en) | Anticorrosion plastic coated composite steel pipe | |
| CN201218364Y (en) | Drinking water conveying pipe with epoxy-polyurethane coating | |
| CN201841715U (en) | Steel plate with solvent-free epoxy antistatic coating | |
| CN204403603U (en) | Deep-sea steel delivery pipe corrosion-resistant thermal insulation multi-layer structure | |
| CN201696809U (en) | External anti-corrosion composite joint coating layer for steel pipes | |
| CN206816972U (en) | A kind of low-pressure fluid conveyance conduit steel pipe | |
| CN2736628Y (en) | Crater antiseptic butt joint pipe | |
| CN201964042U (en) | Anti-corrosive steel pipe with cathodic disbanding and scrape resistant coating | |
| CN2656772Y (en) | Steel pipe with strong acid-resisting and anticorrosive inside coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170427 Address after: 300451 Tianjin Binhai New Area Tanggu Jintang Road No. 40 Patentee after: China Petroleum Group Engineering Technology Institute Address before: 300451 Tianjin, Tanggu ocean economic and Technological Development Zone, Mount Huangshan Road, No. 269, No. Patentee before: Tianjin Cnpc Boxing Engineering Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100414 |