CN202868127U - Docking sleeve connecting inner coating oil pipelines - Google Patents
Docking sleeve connecting inner coating oil pipelines Download PDFInfo
- Publication number
- CN202868127U CN202868127U CN 201220586210 CN201220586210U CN202868127U CN 202868127 U CN202868127 U CN 202868127U CN 201220586210 CN201220586210 CN 201220586210 CN 201220586210 U CN201220586210 U CN 201220586210U CN 202868127 U CN202868127 U CN 202868127U
- Authority
- CN
- China
- Prior art keywords
- main body
- lining
- inner coating
- pipelines
- docking
- 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
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to a docking sleeve connecting inner coating oil pipelines. The docking sleeve connecting the inner coating oil pipelines is used for connecting two end ports of the inner coating oil pipelines, and comprises a sleeve main body, a coating spayed on the outer surface of the sleeve main body. A heat insulation layer is arranged inside a groove in the middle of the outer surface of the sleeve main body. Flanging is arranged at two ends of the heat insulation layer. Two fixing sleeves are arranged on the outer wall of the heat insulation layer. An open check ring is arranged between the two fixing sleeves. Two ends of the outer surface of the sleeve main body are respectively provided with a U-shaped groove. Y x-shaped seal rings are arranged inside the U-shaped grooves. The docking sleeve connecting the inner coating oil pipelines is capable of ensuring continuity of the inner surface coating of the pipelines, avoiding direct contact corrosion of medium to metal materials at the connection ports of the inner coating pipelines and prolonging service life of the inner coating pipelines by extending into the inner coating pipelines to connect inner walls of the two end ports.
Description
Technical field
The utility model relates to a kind of docking lining that connects the undercoating petroleum pipeline.
Background technique
In recent years, oilfield oil pipeline is in order to prevent that medium is to the direct contact corrosion of tubing metal, all adopt undercoating tubing, it is metal pipe internal surface coating one deck corrosion resistant coating, and the undercoating pipe end be welded to connect the continuity that can not keep the tubing coated inside, very easily cause docking corrosion failure and the dielectric leakage of welding part, accident rate is higher, have a strong impact on the working life of petroleum pipeline, only has the etching problem that solves the petroleum pipeline docking site, normally the antiseptic property of performance undercoating tubing prolongs its working life.
The model utility content
The purpose of this utility model is exactly the problem that exists in order to overcome above-mentioned prior art, and a kind of undercoating petroleum pipeline docking lining is provided, and it installs convenient, reliable performance, long service life.
For achieving the above object, the utility model adopts as follows
Technological scheme:
The utility model docking lining, comprise the lining main body, be coated with coating in the lining body surfaces, it is characterized in that: be provided with a groove in lining main body outer surface intermediate portion, be provided with thermal-protective coating in groove, the two-end part of thermal-protective coating is provided with flanging, is provided with the fixed cover of two symmetries at the thermal-protective coating outer surface, the excircle dimension of fixed cover is less than lining main body excircle dimension, and the exterior edge face of fixed cover is stuck within the flanging of thermal-protective coating; Leave the gap between the interior edge face of two fixed covers, be provided with a split washer in the gap, the excircle dimension of split washer is greater than the excircle dimension of lining main body; On the outer surface of lining main body two-end part, offer respectively U-groove bevel, in U-groove bevel, be provided with a Y
xThe shape seal ring, Y
xThe opening direction of shape seal ring is in the face of the port direction of docking lining.
After the utility model process architecture advances and the innovation, its
Beneficial effectFor:
1) adopt the utility model docking lining to connect two undercoating tubing, because when greater than the internal diameter of undercoating tubing, having guaranteed that the docking lining is with the installation of undercoating pipe end and the location during working state of the cylindrical of the split washer of docking lining intermediate portion.
When 2) the utility model being docked lining insertion undercoating tubing enforcement welding, because the fixed cover excircle dimension is less than lining main body excircle dimension, so that form certain interval between fixed cover and the undercoating tubing, the fixed cover that has been heated when having avoided welding contacts with the direct of tube internal coating, makes the antiseptic property of tube internal coating exempt from destruction.
3) flanging of the thermal-protective coating end of the utility model docking lining setting has effectively been isolated the high temperature fixed cover to lining body surfaces coating heat transfer during welding, makes the antiseptic property of lining body surfaces coating exempt from destruction.
4) the utility model docking lining respectively is provided with Y one in the U-groove bevel of lining main body outer surface two-end part
xThe shape seal ring when sealer of coating is through the long-term work seal failure when installing, relies on Y
xThe precompressed amount of shape seal ring reaches desired seal pressure, guarantees the sealing to medium, avoids the direct contacting metal material of Korrosionsmedium; Because Y
xThe opening direction of shape seal ring has the function of pressure medium auxiliary seal in the face of the port direction of docking lining.
5) adopt the utility model docking lining to guarantee the internally coated continuity of petroleum pipeline, give full play to internally coated antiseptic property, prolong its working life.
Description of drawings
Fig. 1 is docking lining embodiment's described in the utility model structural representation;
Structural representation when Fig. 2 is docking lining use described in the utility model;
Fig. 3 is the local structure for amplifying schematic diagram in I place among Fig. 1;
Fig. 4 is the local structure for amplifying schematic diagram in II place among Fig. 2;
Among the figure: 1. lining main body; 2. coating; 3. thermal-protective coating; 4. fixed cover; 5. split washer; 6. Y
xThe shape seal ring; 7. flanging; 8. sealer; 9. welding bead; 10. undercoating tubing; 11. gap.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
Such as Fig. 1, shown in Figure 3, the utility model embodiment is docked lining and is comprised lining main body 1, be sprayed at the coating 2 on lining main body 1 surface, be provided with thermal-protective coating 3 in the groove of lining main body 1 outer surface intermediate portion, the two-end part of thermal-protective coating 3 is provided with flanging 7, thermal-protective coating 3 outer surfaces arrange two fixed covers 4, the excircle dimension of fixed cover 4 is less than lining main body 1 excircle dimension, the exterior edge face of fixed cover 4 contacts with the flanging 7 of thermal-protective coating 3, leave gap 11 between the interior edge face of two fixed covers 4,11 are provided with split washer 5 in the gap, and the excircle dimension of the split washer 5 after the closure is greater than the excircle dimension of lining main body 1; Two-end part at lining main body 1 outer surface is offered respectively U-groove bevel, and a Y respectively is set in the U-groove bevel
xShape seal ring 6, Y
xThe opening direction of shape seal ring 6 is in the face of the port direction of docking lining.
Such as Fig. 2, shown in Figure 4, the utility model docking lining is implemented welding by inserting undercoating tubing 10 behind split washer 5 location of docking lining intermediate portion.During site operation, first left and right two undercoating tubing 10 are connect groove along intersection's inverse bonding of external diameter and end face, again along intersection's rounding of internal diameter and end face so that Y
xThe installation of shape seal ring 6, on a left side, one deck sealer 8 is smeared along circumference in right two undercoating tubing 10 inwall appropriate locations, to dock first in the undercoating tubing 10 in lining one end insertion left side, till insertion depth is located with split washer 5, to dock again in the undercoating tubing 10 on lining the other end insertion right side, till insertion depth is located with split washer 5, guaranteeing a left side, implement welding under the concentric prerequisite of two undercoating tubing in right side 10 and form welding bead 9, in welding process, Local cooling is implemented in welding bead 9 both sides, and guarantee weld strength and the sealability of welding bead 9.
Adopt the utility model docking lining to connect undercoating tubing, by the coating 2 of lining main body 1 outer surface and the location that contacts of undercoating tubing 10 inwalls, guarantee to leave certain interval between fixed cover 4 and the undercoating tubing 10 destruction of internal coating tubing 10 coating on inner surface of high temperature that transmitted by fixed cover 4 when avoiding welding; The flanging 7 of thermal-protective coating 3 two-end parts is with fixed cover 4 and 1 isolation of lining main body, the destruction of 4 pairs of lining main body 1 cover coats 2 of the fixed cover that is heated when avoiding welding; Insert in the process of undercoating tubing 10 at the docking lining, circumferentially sealer 8 and the Y of coating
xForm the inner chamber of sealing pressurized between the shape seal ring 6, sealer 8 can not fully be full of the inner chamber of this pressurized; When sealer 8 long-term work sealabilities lost efficacy, Y
xResiliently deformable when shape seal ring 6 is installed has guaranteed the sealing to medium, simultaneously because Y
xThe opening surface of shape seal ring 6 is to the pressure direction of medium, and its pressure medium pushes Y
xThe effect of auxiliary seal is played on the lip limit of shape seal ring 6, so Y
xShape seal ring 6 seals the effect of playing double seal as second.
In a word, this model utility docking lining has guaranteed the continuity of undercoating petroleum pipeline corrosion-inhibiting coating, avoided the direct contact corrosion of the internal coating tubing of medium metal, prolonged the working life of petroleum pipeline, made the corrosion-inhibiting coating performance maximum utility of petroleum pipeline internal surface.
Claims (1)
1. docking lining that connects the undercoating petroleum pipeline, comprise lining main body (1), at lining main body (1) surface spraying coating (2) is arranged, it is characterized in that: be provided with a groove in lining main body (1) outer surface intermediate portion, in groove, be provided with thermal-protective coating (3), the two-end part of thermal-protective coating (3) is provided with flanging (7), be provided with the fixed cover (4) of two symmetries at thermal-protective coating (3) outer surface, the excircle dimension of fixed cover (4) is less than lining main body (1) excircle dimension, and the exterior edge face of fixed cover (4) is stuck within the flanging (7) of thermal-protective coating (3); Leave gap (11) between the interior edge face of two fixed covers (4), (11) are provided with a split washer (5) in the gap, and the excircle dimension of split washer (5) is greater than the excircle dimension of lining main body (1); On the outer surface of lining main body (1) two-end part, offer respectively U-groove bevel, in U-groove bevel, be provided with a Y
xShape seal ring (6), Y
xThe opening direction of shape seal ring (6) is in the face of the port direction of docking lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586210 CN202868127U (en) | 2012-11-09 | 2012-11-09 | Docking sleeve connecting inner coating oil pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586210 CN202868127U (en) | 2012-11-09 | 2012-11-09 | Docking sleeve connecting inner coating oil pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868127U true CN202868127U (en) | 2013-04-10 |
Family
ID=48034847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220586210 Expired - Lifetime CN202868127U (en) | 2012-11-09 | 2012-11-09 | Docking sleeve connecting inner coating oil pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202868127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032427A (en) * | 2020-09-15 | 2020-12-04 | 东营市正能石油科技有限公司 | Anti-corrosion oil pipe for oil field |
-
2012
- 2012-11-09 CN CN 201220586210 patent/CN202868127U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032427A (en) * | 2020-09-15 | 2020-12-04 | 东营市正能石油科技有限公司 | Anti-corrosion oil pipe for oil field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |