CN2811728Y - Anti-corrosion thermal-insulation composite structure for submerged pipeline in-situ interface - Google Patents
Anti-corrosion thermal-insulation composite structure for submerged pipeline in-situ interface Download PDFInfo
- Publication number
- CN2811728Y CN2811728Y CN 200520026468 CN200520026468U CN2811728Y CN 2811728 Y CN2811728 Y CN 2811728Y CN 200520026468 CN200520026468 CN 200520026468 CN 200520026468 U CN200520026468 U CN 200520026468U CN 2811728 Y CN2811728 Y CN 2811728Y
- Authority
- CN
- China
- Prior art keywords
- corrosion
- layer
- thermal insulation
- composite structure
- protective coating
- 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
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model discloses an anti-corrosion thermal-insulation composite structure for submerged pipeline in-situ jointing openings, which comprises an anti-corrosion layer which is coated on the surface of the pipeline, a first protecting layer which is used for protecting the anti-corrosion layer and is coated on the anti-corrosion layer. The utility model also comprises a thermal-insulation layer, a second protecting layer and a third protecting layer which are orderly coated on the first protecting layer. Because adopting multi-layer composite anti-corrosion thermal-insulation structure with the function of environmental protection, the utility model has the advantages of reducing environmental pollution, raising the anti-corrosion thermal-insulation effect and strength of the jointing opening point of the submerged pipeline, reducing the breakage and failure rate and meeting operating condition demands for offshore pipe laying.
Description
Technical field
The utility model relates to a kind of pipeline corrosion protection insulation composite structure, is applicable to the technical field of the on-the-spot interface of submarine pipeline.
Background technique
The conventional way of the marine on-the-spot interface of submarine pipeline is to adopt the pattern of bitumastic cast, the i.e. structure of " working steel tube+anticorrosive coat+bitumastic " at present.
Conventional joint structure pattern has had very long history on ocean corrosion-resistant thermal insulation pipe joint uses, but there is following shortcoming in it:
1. befouling environment: contain strong carcinogen (3, the 4-BaP) in the bitumastic, pollution of marine environment, smog is bigger during heating, is detrimental to health.
2. " anticorrosive coat+bitumastic " structural thermal insulation poor performance, the medium heat loss is bigger, energy waste;
3. occupied ground is bigger in marine on-the-spot the installation: need a very big matizhi thawing furnace on the pipe laying barge, the raw material floor space is bigger;
4. the danger in marine the installation: bitumastic is inflammable, and temperature is higher during heating, has the danger of fire and scald.
Summary of the invention
The purpose of this utility model is to provide a kind of corrosion-resistant thermal insulation composite structure that is applicable to the on-the-spot interface of on-the-spot submarine pipeline interface, that have excellent corrosion-resistant thermal insulation function of submarine pipeline.
The utility model is achieved through the following technical solutions:
The corrosion-resistant thermal insulation composite structure of the on-the-spot interface of a kind of submarine pipeline described in the utility model; it comprises the anticorrosive coat that is coated on pipe surface, coating first protective coating thereon of the described anticorrosive coat of protection, and it also comprises thermal insulation layer, second protective coating and the 3rd protective coating that is coated on successively on described first protective coating.
In the utility model owing to adopted the MULTILAYER COMPOSITE corrosion-resistant thermal insulation structure of environmental protection, reduced pollution to environment, improve the corrosion-resistant thermal insulation effect and the intensity of submarine pipeline jointing greatly, reduced pipeline break rate and rate of fault, satisfied the operating mode demand of marine pipe-laying.
Description of drawings
Accompanying drawing is the on-the-spot interface structure schematic representation of the corrosion-resistant thermal insulation composite structure of the on-the-spot interface of the utility model submarine pipeline.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in drawings, the corrosion-resistant thermal insulation composite structure of the on-the-spot interface of submarine pipeline is formed:
(1) steel pipe 8, and the surface adopts sanding to handle.
(2) steel pipe coats one deck anticorrosive coat 1 outward, and anticorrosive coat 1 can adopt clinkery epoxy powder or solvent-free liquid epoxy.
(3) anticorrosive coat 1 outer first protective coating 2 that coats is used to protect described anticorrosive coat 1, the first protective coating 2 to adopt radiation-crosslinking thermal-contraction belt.
(4) thermal insulation layer 3 is coated on described first protective coating 2, adopts prefabricated tile fragment thermal-insulating pipe case.
(5) be coated with the shrink belt protection that second protective coating, 4, the second protective coatings 4 that are used to protect thermal insulation layer adopt crosslinkings with radiation on the thermal insulation layer 3.
Coat the 3rd protective coating 5 on (6) second protective coatings 4; form the joint concordant with concrete layer; this protective coating can increase integrally-built intensity and have certain thermal insulation property simultaneously, and the 3rd protective layer 5 adopts high density, high-intensity open-celled structure hard polyurethane foams.Owing to better percent opening is arranged on this material, thereby can absorb water when placing the seabed, increase water content, reduce buoyancy.6 is weld seams of two pipe joints among the figure.
(7) the 7th, be arranged at the outer tarpaulin of thermal insulation layer, be used to prevent the thermal insulation layer water inlet.
Claims (3)
1. the corrosion-resistant thermal insulation composite structure of the on-the-spot interface of submarine pipeline; it comprises the anticorrosive coat that is coated on pipe surface, coating first protective coating thereon of the described anticorrosive coat of protection, and it is characterized in that: it also comprises thermal insulation layer, second protective coating and the 3rd protective coating that is coated on successively on described first protective coating.
2. the corrosion-resistant thermal insulation composite structure of the on-the-spot interface of submarine pipeline according to claim 1, it is characterized in that: described thermal insulation layer is a watt shape thermal-insulating pipe case.
3. the corrosion-resistant thermal insulation composite structure of the on-the-spot interface of submarine pipeline according to claim 1 is characterized in that: described the 3rd protective coating adopts open-celled structure high density, high-intensity rigid polyurethane foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026468 CN2811728Y (en) | 2005-06-30 | 2005-06-30 | Anti-corrosion thermal-insulation composite structure for submerged pipeline in-situ interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026468 CN2811728Y (en) | 2005-06-30 | 2005-06-30 | Anti-corrosion thermal-insulation composite structure for submerged pipeline in-situ interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2811728Y true CN2811728Y (en) | 2006-08-30 |
Family
ID=36938118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520026468 Expired - Lifetime CN2811728Y (en) | 2005-06-30 | 2005-06-30 | Anti-corrosion thermal-insulation composite structure for submerged pipeline in-situ interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2811728Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684880B (en) * | 2008-09-27 | 2011-07-06 | 中国海洋石油总公司 | Sealing structure of seabed single-layer insulating pipe joint |
| CN104728553A (en) * | 2015-01-20 | 2015-06-24 | 中国石油天然气集团公司 | Submarine pipeline additional weight layer opening repairing structure |
-
2005
- 2005-06-30 CN CN 200520026468 patent/CN2811728Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684880B (en) * | 2008-09-27 | 2011-07-06 | 中国海洋石油总公司 | Sealing structure of seabed single-layer insulating pipe joint |
| CN104728553A (en) * | 2015-01-20 | 2015-06-24 | 中国石油天然气集团公司 | Submarine pipeline additional weight layer opening repairing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2728345C (en) | Protective coating for metal surfaces | |
| CN103316828B (en) | Production method for ship fastener complex coating | |
| CN1114781C (en) | Corrosion and fire resistant pipe system | |
| CN2811728Y (en) | Anti-corrosion thermal-insulation composite structure for submerged pipeline in-situ interface | |
| Razavi Setvati et al. | A review on composite materials for offshore structures | |
| CN203230966U (en) | Conveying pipeline with multilayer composite heat insulation structure | |
| CN2911362Y (en) | Single layer thermal insulation pipeline structure for offshore transportation of petroleum, natural gas, water and/or oil-gas mixed transportation | |
| CN103195985B (en) | There is the conveyance conduit of multilayer composite heat insulation structure | |
| CN2797817Y (en) | Glass fiber reinforced plastic tube used for ship | |
| CN201043641Y (en) | Single-layer heat-preserving counterbalance pipe with cathode protection device used in oceanography engineering | |
| CN102840395A (en) | Dual-layer heat-preserving weight-balancing submarine pipeline | |
| CN2893362Y (en) | Seawater corrosion resisting modified epoxy ceramic anticorrosion layer seawater filling pipe | |
| CN204805768U (en) | Anticorrosive sleeve pipeline of allumen connects | |
| CN201057318Y (en) | Ocean floor pipe and joint coating of fast hard polymer concrete coating | |
| CN1673605A (en) | Thermal insulation energy-saving technology for heat distribution pipeline | |
| CN202828085U (en) | Seawater pipeline structure capable of preventing pipeline corrosion and lightening pipeline weight | |
| CN2856665Y (en) | Single-layer thermal insulation tube | |
| CN214033775U (en) | Novel anti-erosion combined type offshore wind power foundation | |
| CN214699553U (en) | High pressure resistant oil filling riser | |
| CN100449195C (en) | Heat insulating and energy-saving technique for thermal pipes | |
| CN204942785U (en) | A kind of wet type seabed conveying insulation pipe | |
| CN201982816U (en) | Multilayer polypropylene anticorrosion thermal insulation pipe for sea floor | |
| CN204493921U (en) | Trenchless engineering special anti-corrosion thermal insulation pipe | |
| CN219510324U (en) | Large-caliber multi-layer composite drinking water pipeline | |
| CN2241854Y (en) | Steam and high-temp. medium compounded heat-insulating plow-in heat distribution pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CNOOC ENERGY TECHNOLOGY + SERVICES LIMITED Free format text: FORMER OWNER: OILFIELD CONSTRUCTION ENGINEERING BRANCH COMPANY OF CHINA NATIONAL OFFSHORE OIL BASE CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100027 DONGCHENG, BEIJING TO: 100016 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110929 Address after: 100016, CNOOC building, No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China National Offshore Oil Corporation Address before: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Co-patentee before: CNOOC Oilfield Co., Ltd. Patentee before: China National Offshore Oil Corporation |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150630 Granted publication date: 20060830 |
|
| EXPY | Termination of patent right or utility model |