CN203488919U - Protecting structure for coating balance weight subsea pipeline - Google Patents
Protecting structure for coating balance weight subsea pipeline Download PDFInfo
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- CN203488919U CN203488919U CN201320607446.1U CN201320607446U CN203488919U CN 203488919 U CN203488919 U CN 203488919U CN 201320607446 U CN201320607446 U CN 201320607446U CN 203488919 U CN203488919 U CN 203488919U
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- sea pipe
- sea
- matrix
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Abstract
The utility model provides a protecting structure for coating a balance weight subsea pipeline. The protecting structure comprises a left sealing part, a right sealing part, a left protector and a right protector; the balance weight subsea pipeline comprises a subsea pipeline substrate, an anti-corrosion layer and a balance weight layer; the outer surface of the subsea pipeline substrate is coated with the anti-corrosion layer; the outer surface of the anti-corrosion layer is coated with the balance weight layer; the length of the balance weight layer is smaller than that of the anti-corrosion layer, and the length of the anti-corrosion layer is smaller than that of the subsea pipeline substrate; the outer exposed surface of the subsea pipeline substrate and the inner wall of the subsea pipeline substrate are respectively coated with anti-rust coating; the left end face of the subsea pipeline substrate is sealed through the left sealing part, and then the left protector is additionally arranged outside the left end face; the right end face of the subsea pipeline substrate is sealed through the right sealing part, and then the right protector is additionally arranged outside the right end face. Storage time of the subsea pipeline is effectively prolonged, and quality of the subsea pipeline can be guaranteed.
Description
Technical field
The utility model belongs to pipe guard technology field, sea, is specifically related to a kind of safeguard structure that applies counterweight sea pipe.
Background technique
The world energy outlook demonstration that International Energy Agency is issued in recent years, the front three in global energy demand is respectively the fossil class energy such as oil, coal and rock gas, and its consumption is far above bioenergy, nuclear energy, water conservancy and other renewable sources of energy, and increase year by year.Visible, marine oil and gas resource will be the important sources that following oil and gas production increases, and more than 50% oil and gas production and the reserves in the whole world will be from ocean.And submarine pipeline transportation is most economical, the safest, the topmost means of transportation of offshore oil, rock gas, by submarine pipeline, oil or the rock gas of ocean platform exploitation are landwards carried.
Because ocean environment is very harsh, comprise tidewater, undercurrent, spring up etc., when the resistance providing when sea bed foundation soil is not enough to balance wave stream loading, submarine pipeline can skid off and unstable phenomenon in place occurs from original position.Once, can there is side direction or vertical displacement in unstability, the destruction of just causing pipeline after displacement goes beyond the limit, its rehabilitation cost is quite huge.Visible, submarine pipeline is as the effective tool of carrying oil gas, and its stability is the key that guarantees the normal operation of offshore oil and gas field.
In prior art, generally by increasing concrete weight coating, increase pipeline weight, and then increase the underwater stability of pipeline.Concrete weight coating sea tubular construction is generally: in steel pipe outside, first apply one deck anticorrosive coat, for the protection of steel pipe, be not corroded; Then in anticorrosive coat outside, increase weight coating, thereby increase the weight of steel pipe self, in addition, in weight coating, also embed stiffening rib, thereby guarantee the intensity of weight coating.
In pipeline construction, because engineering is suspended, constructed residual, the factors such as engineering is standby, have part steel pipe at the scene or the material stock library storage long period, because steel pipe is stored under condition often in the open, when outdoor memory time is longer, because rainwater is more, ultraviolet ray is stronger, the factors such as storage improper measures, there will be as corrosion hole, wall thickness reduction after corrosion, end anticorrosive coat alice, end anti-corrosive coating's aging, the various quality problems such as weight coating end breakage, thereby can cause steel pipe degradation to use, falling and useless process or again process again etc., thereby cause the wasting of resources.
Model utility content
The defect existing for prior art, the utility model provides a kind of safeguard structure that applies counterweight sea pipe, can prevent that sea pipe from occurring as various quality phenomenons such as wall thickness reduction, end anticorrosive coat alice, end anti-corrosive coating's aging, the breakages of weight coating end after corrosion hole, corrosion, thereby extend the working life of extra large pipe.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of safeguard structure that applies counterweight sea pipe, comprising: left end Sealing, right-hand member Sealing, left end protector and right-hand member protector;
Described counterweight sea pipe comprises sea pipe matrix, anticorrosive coat and weight coating; Outer surface at described sea pipe matrix applies described anticorrosive coat; At described anticorrosive coat outer surface, apply described weight coating; Wherein, the length that is shorter in length than described sea pipe matrix of described weight coating; At the exposed outer surface of described sea pipe matrix and the coated inner wall rust proof paint of described sea pipe matrix; The left side of the described sea of described left end Sealing sealing pipe matrix, then installs described left end protector additional in outside, described left side; The right side of the described sea of described right-hand member Sealing sealing pipe matrix, then installs described right-hand member protector additional in outside, described right side.
Preferably, described left end Sealing and described right-hand member Sealing are plastic film.
Preferably, described left end Sealing wraps behind described left side, by two-sided tape, fixes; Described right-hand member Sealing wraps behind described right side, by two-sided tape, fixes.
Preferably, described left end protector is identical with described right-hand member protector structure.
Preferably, described left end protector comprises integrally formed weight coating protecting sheathing, matrix protecting sheathing and left side protecting sheathing; Described left end protector is inserted in behind left part, and described left side protecting sheathing is positioned at the skin of described left side, the inwall of described matrix protecting sheathing and described two-sided tape close contact; The inwall of described weight coating protecting sheathing and described weight coating left end surface close contact.
Preferably, the material of described weight coating protecting sheathing, described matrix protecting sheathing and described left side protecting sheathing is polyethylene or PVC＝polyvinyl chloride.
Preferably, in the inside of described weight coating protecting sheathing, build reinforcing part.
Preferably, described reinforcing part is steel.
The utility model also provides a kind of protecting method that applies counterweight sea pipe, comprises the following steps:
S1, at the outer surface anticorrosive coating of sea pipe matrix; Then at anticorrosive coat outer surface, apply weight coating, obtain counterweight sea pipe; Wherein, the length that is shorter in length than described sea pipe matrix of described weight coating;
S2, at the exposed outer surface of described sea pipe matrix and the coated inner wall rust proof paint of described sea pipe matrix;
S3, removes after the steam of pipe matrix inside, described sea, uses the left side of the described sea of left end Sealing sealing pipe matrix, then in outside, described left side, installs described left end protector additional; Use the right side of the described sea of right-hand member Sealing sealing pipe matrix, then in outside, described right side, install described right-hand member protector additional.
Safeguard structure and the protecting method of the coating counterweight sea pipe that the utility model provides, have the following advantages:
(1) effectively prevent weight coating end collision and produce weight coating damaged, come off, the defect such as crack;
(2) effectively prevent steel pipe corrosion, thereby avoid the steel tube defects such as wall thickness reduction, corrosion pockmark;
(3) effectively prevent that corrosion-inhibiting coating from producing serious alice, scuffing, coating because being subject to ultraviolet ray to irradiate the defects such as aging;
(4) effectively extend the memory time of extra large pipe, and can guarantee sea pipe quality.
Accompanying drawing explanation
The generalized section of the safeguard structure of the coating counterweight sea pipe that Fig. 1 provides for the utility model;
Wherein, 1---weight coating; 2---anticorrosive coat; 3---right-hand member protector; 4---sea pipe matrix; 5---the first two-sided tape; 7---the second two-sided tape; 6---right-hand member Sealing;
The external structure schematic diagram of the counterweight sea pipe that only installs Sealing additional that Fig. 2 provides for the utility model;
The external structure schematic diagram of the protector that Fig. 3 provides for the utility model;
The generalized section of the protector that Fig. 4 provides for the utility model;
Wherein, 8---reinforcing part; 9---weight coating protecting sheathing; 10---matrix protecting sheathing; 11---left side protecting sheathing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
The utility model provides a kind of safeguard structure that applies counterweight sea pipe, comprising: left end Sealing, right-hand member Sealing 6, left end protector and right-hand member protector 3; Fig. 1 only shows the sectional drawing of one end of the safeguard structure that applies counterweight sea pipe.Fig. 2 also only shows one end structural representation of the counterweight sea pipe that installs Sealing additional.
Counterweight sea pipe comprises sea pipe matrix 4, anticorrosive coat 2 and weight coating 1; At the outer surface anticorrosive coating of sea pipe matrix, protection sea pipe matrix is not corroded; At anticorrosive coat outer surface, apply weight coating, thereby increase sea pipe own wt, and then increase the underwater stability of sea pipe.Wherein, the length that is shorter in length than sea pipe matrix of weight coating; At the exposed outer surface of sea pipe matrix and the coated inner wall rust proof paint of sea pipe matrix; Then, after removing sea pipe matrix internal steam, the left side of using left end Sealing sealing sea pipe matrix, then installs left end protector additional in outside, left side; The right side of using right-hand member Sealing 6 sealing sea pipe matrixes 4, then installs right-hand member protector additional in outside, right side.
In practical application, left end Sealing and right-hand member Sealing can all adopt plastic film; Left end Sealing wraps behind left side, can fix by two-sided tape; Right-hand member Sealing wraps behind right side, also by two-sided tape, fixes.
As shown in Figure 3, Figure 4, left end protector is identical with right-hand member protector structure, and the left end protector of take is introduced as example: left end protector comprises integrally formed weight coating protecting sheathing 9, matrix protecting sheathing 10 and left side protecting sheathing 11; Left end protector is inserted in behind left part, and left side protecting sheathing is positioned at the skin of left side, the inwall of matrix protecting sheathing and two-sided tape close contact; The inwall of weight coating protecting sheathing and weight coating left end surface close contact.Wherein, the material of weight coating protecting sheathing, matrix protecting sheathing and left side protecting sheathing is polyethylene or PVC＝polyvinyl chloride.Inside at weight coating protecting sheathing can build reinforcing part, thereby improves the intensity of weight coating, and reinforcing part includes but not limited to steel.
The utility model also provides a kind of protecting method that applies counterweight sea pipe, comprises the following steps:
S1, at the outer surface anticorrosive coating of sea pipe matrix; Then at anticorrosive coat outer surface, apply weight coating, obtain counterweight sea pipe; Wherein, the length that is shorter in length than described sea pipe matrix of described weight coating;
S2, at the exposed outer surface of described sea pipe matrix and the coated inner wall rust proof paint of described sea pipe matrix;
S3, removes after the steam of pipe matrix inside, described sea, uses the left side of the described sea of left end Sealing sealing pipe matrix, then in outside, described left side, installs described left end protector additional; Use the right side of the described sea of right-hand member Sealing sealing pipe matrix, then in outside, described right side, install described right-hand member protector additional.
In sum, safeguard structure and the protecting method of the coating counterweight sea pipe that the utility model provides, have the following advantages:
(1) effectively prevent weight coating end collision and produce weight coating damaged, come off, the defect such as crack;
(3) effectively prevent steel pipe corrosion, thereby avoid the steel tube defects such as wall thickness reduction, corrosion pockmark;
(3) effectively prevent that corrosion-inhibiting coating from producing serious alice, scuffing, coating because being subject to ultraviolet ray to irradiate the defects such as aging;
(4) effectively extend the memory time of extra large pipe, and can guarantee sea pipe quality.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection domain of the present utility model.
Claims (8)
1. a safeguard structure that applies counterweight sea pipe, is characterized in that, comprising: left end Sealing, right-hand member Sealing, left end protector and right-hand member protector;
Described counterweight sea pipe comprises sea pipe matrix, anticorrosive coat and weight coating; Outer surface at described sea pipe matrix applies described anticorrosive coat; At described anticorrosive coat outer surface, apply described weight coating; Wherein, the length that is shorter in length than described sea pipe matrix of described weight coating; At the exposed outer surface of described sea pipe matrix and the coated inner wall rust proof paint of described sea pipe matrix; The left side of the described sea of described left end Sealing sealing pipe matrix, then installs described left end protector additional in outside, described left side; The right side of the described sea of described right-hand member Sealing sealing pipe matrix, then installs described right-hand member protector additional in outside, described right side.
2. the safeguard structure of coating counterweight according to claim 1 sea pipe, is characterized in that, described left end Sealing and described right-hand member Sealing are plastic film.
3. the safeguard structure of coating counterweight according to claim 1 sea pipe, is characterized in that, described left end Sealing wraps behind described left side, by two-sided tape, fixes; Described right-hand member Sealing wraps behind described right side, by two-sided tape, fixes.
4. the safeguard structure of coating counterweight according to claim 1 sea pipe, is characterized in that, described left end protector is identical with described right-hand member protector structure.
5. the safeguard structure of coating counterweight according to claim 4 sea pipe, is characterized in that, described left end protector comprises integrally formed weight coating protecting sheathing, matrix protecting sheathing and left side protecting sheathing; Described left end protector is inserted in behind left part, and described left side protecting sheathing is positioned at the skin of described left side, the inwall of described matrix protecting sheathing and described two-sided tape close contact; The inwall of described weight coating protecting sheathing and described weight coating left end surface close contact.
6. the safeguard structure of coating counterweight according to claim 5 sea pipe, is characterized in that, the material of described weight coating protecting sheathing, described matrix protecting sheathing and described left side protecting sheathing is polyethylene or PVC＝polyvinyl chloride.
7. the safeguard structure of coating counterweight according to claim 5 sea pipe, is characterized in that, in the inside of described weight coating protecting sheathing, builds reinforcing part.
8. the safeguard structure of coating counterweight according to claim 7 sea pipe, is characterized in that, described reinforcing part is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607446.1U CN203488919U (en) | 2013-09-29 | 2013-09-29 | Protecting structure for coating balance weight subsea pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607446.1U CN203488919U (en) | 2013-09-29 | 2013-09-29 | Protecting structure for coating balance weight subsea pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488919U true CN203488919U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320607446.1U Expired - Fee Related CN203488919U (en) | 2013-09-29 | 2013-09-29 | Protecting structure for coating balance weight subsea pipeline |
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| CN (1) | CN203488919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470911A (en) * | 2013-09-29 | 2013-12-25 | 北京隆盛泰科石油管科技有限公司 | Protecting structure for coated and weighted sea pipe and protecting method |
-
2013
- 2013-09-29 CN CN201320607446.1U patent/CN203488919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470911A (en) * | 2013-09-29 | 2013-12-25 | 北京隆盛泰科石油管科技有限公司 | Protecting structure for coated and weighted sea pipe and protecting method |
| CN103470911B (en) * | 2013-09-29 | 2015-08-19 | 北京隆盛泰科石油管科技有限公司 | The safeguard structure of coating counterweight sea pipe and protecting method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20180929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |