CN202561297U - Pipeline for transporting petroleum and natural gas - Google Patents
Pipeline for transporting petroleum and natural gas Download PDFInfo
- Publication number
- CN202561297U CN202561297U CN2012200538256U CN201220053825U CN202561297U CN 202561297 U CN202561297 U CN 202561297U CN 2012200538256 U CN2012200538256 U CN 2012200538256U CN 201220053825 U CN201220053825 U CN 201220053825U CN 202561297 U CN202561297 U CN 202561297U
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- CN
- China
- Prior art keywords
- pipeline
- natural gas
- welding
- corrosion resistant
- transporting petroleum
- 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 - Fee Related
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
Provided is a pipeline for transporting petroleum and natural gas. The pipeline comprises a pipe body and anti-corrosion alloy rings with a length of 130mm-140mm disposed at inner holes at two ends of the pipe body. According to the pipeline for transporting petroleum and natural gas, the anti-corrosion alloy rings are disposed at the inner walls at two ends of the pipe body, one pipe is in abutting joint with another pipe during installation, and welding afterheat will not exert any impact on anticorrosion performances of an organic coating next to the pipes, so that anticorrosion capabilities of welding regions are maintained, normal transportation of a medium is ensured after the pipeline takes service, and maintenance frequency of the pipeline is greatly lowered.
Description
Technical field
The utility model relates to a kind of pipeline, and particularly a kind of transfer oil rock gas is used pipeline.
Background technique
The existing pipeline that is used for the transfer oil natural gas comprises body, at the internal surface of body spraying organic coating, forms the anticorrosive paint layer, is used for anticorrosion to inboard wall of tube body.Tube and tube butt welding during installation; In the welding region vicinity; Because receive the influence of welding thermal cycle, the anticorrosive paint layer of this place's internal surface suffers destruction to a certain degree, has reduced preset coating antiseptic performance; This zone is the corrosion-resistant weakness in the fed sheet of a media process, and about 80% body leaks and occurs in here.
Summary of the invention
Near the oil natural gas conveyance conduit that the purpose of the utility model provides a kind of pipe end internal surface is welding heat affected when not docked, antiseptic property is good, joint is difficult for taking place leakage phenomenon the welding region overcomes the deficiency of existing technology.
The transfer oil rock gas of the utility model is used pipeline, comprises body, and the endoporus place is provided with the corrosion resistant alloy ring at the two ends of body, and the length of described corrosion resistant alloy ring is 130 millimeters～140 millimeters.
The transfer oil rock gas of the utility model is used pipeline; Owing to the corrosion resistant alloy ring is arranged at endoporus place, body two ends; During installation, the welding waste heat does not influence the antiseptic property of its neighbour's organic anti-corrosive coating during the tube and tube butt joint, and the antiseptic power of welding region is remained unchanged; Guaranteed after the piping erection the normal conveying of medium is greatly reduced the maintenance frequency of pipeline.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As shown in Figure 1: 1 is the body of transfer oil natural gas, and there is corrosion resistant alloy ring 2 at the endoporus place at the two ends of body 1, on the inwall of body 1, sprays organic coating, forms the anticorrosive paint layer, is used for anticorrosion to body 1.The corrosion resistant alloy ring 2 of inboard, two ends is along the axial length A of body, and the waste heat that produces during with butt welding does not exert an influence to the organic coating beyond the corrosion resistant alloy ring 2 and is advisable, and can between 130 millimeters～140 millimeters, select.Said corrosion resistant alloy can be stainless steel or nickel-base alloy.Be welding between corrosion resistant alloy ring 2 and the body 1, weld bond 3 and outer weld bond 4 in forming.Interior weld bond 3 is for seal weld or glued joint sealing.In order to keep the intact of anticorrosive paint layer, must carry out the soldering of corrosion resistant alloy ring 2 earlier, and then carry out spraying treatmen.
Before dress weldering corrosion resistant alloy ring; Can process seam to the pipe end inner surface is step; The degree of depth 0.7-1.2mm of step; Corrosion resistant alloy ring 2 dresses are welded in this stop portion, and the external end head extrusion L of corrosion resistant alloy ring 2 is 3 millimeters, and corrosion resistant alloy ring 2 internal diameters and body 1 diameter are not less than 0.6 millimeter.
During installation, tube and tube when butt joint welding waste heat does not influence its contiguous organic coating layer antiseptic property, thereby has guaranteed after the piping erection the normal conveying of medium has been reduced the maintenance frequency of pipeline significantly.
Claims (1)
1. a transfer oil rock gas is used pipeline, comprises body (1), it is characterized in that: the endoporus place, two ends at body (1) is provided with corrosion resistant alloy ring (2), and the length of described corrosion resistant alloy ring (2) is 130 millimeters～140 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200538256U CN202561297U (en) | 2012-02-20 | 2012-02-20 | Pipeline for transporting petroleum and natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200538256U CN202561297U (en) | 2012-02-20 | 2012-02-20 | Pipeline for transporting petroleum and natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202561297U true CN202561297U (en) | 2012-11-28 |
Family
ID=47210956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200538256U Expired - Fee Related CN202561297U (en) | 2012-02-20 | 2012-02-20 | Pipeline for transporting petroleum and natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202561297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017012131A1 (en) * | 2015-07-20 | 2017-01-26 | 潍坊亿斯特管业科技有限公司 | Anticorrosive pipeline having inner epoxy and outer 3pe without inner anticorrosive layer repairing after welding and preparation process therefor |
-
2012
- 2012-02-20 CN CN2012200538256U patent/CN202561297U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017012131A1 (en) * | 2015-07-20 | 2017-01-26 | 潍坊亿斯特管业科技有限公司 | Anticorrosive pipeline having inner epoxy and outer 3pe without inner anticorrosive layer repairing after welding and preparation process therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pipeline for transporting petroleum and natural gas Effective date of registration: 20131021 Granted publication date: 20121128 Pledgee: Bank of Dalian Co fourth central sub branch Pledgor: Dalian Hesheng Technology Exploiture Co., Ltd. Registration number: 2013990000763 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150220 |
|
| EXPY | Termination of patent right or utility model |