CN201757249U - Ocean heat preservation aerogel conveying pipeline - Google Patents
Ocean heat preservation aerogel conveying pipeline Download PDFInfo
- Publication number
- CN201757249U CN201757249U CN2010202228255U CN201020222825U CN201757249U CN 201757249 U CN201757249 U CN 201757249U CN 2010202228255 U CN2010202228255 U CN 2010202228255U CN 201020222825 U CN201020222825 U CN 201020222825U CN 201757249 U CN201757249 U CN 201757249U
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- aerogel
- steel
- conveyance conduit
- pipe
- ocean
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Abstract
The utility model relates to an ocean heat preservation aerogel conveying pipeline, comprising an inner steel pipe for conveying fluid and an outer steel pipe used as a protective layer; a plurality of center locators fixed at the inner steel pipe are arranged between the inner steel pipe and the outer steel pipe, the outer surface of the inner steel pipe is coated with anticorrosive coating, a heat preservation layer is formed between the outer surface of the anticorrosive coating and the outer steel pipe by a coated adiabatic aerogel blanket. The ocean heat preservation aerogel conveying pipeline has the characteristics of simple structure, convenient processing and wide use in the conveying process of submarine crude oil or natural gas medium and the like.
Description
Technical field
The utility model relates to a kind of conveyance conduit, particularly about a kind of aerogel ocean insulation conveyance conduit.
Background technique
In pipe conveying procedure, when fluid temperature (F.T.) was reduced to certain value, some can separate out HMW and low-molecular-weight wax component successively than the crude oil of high-consistency; Or high pressure length apart from the transport gas condition under, gas hydrates can be to separate out like the solid shape of loose ice.The not only easy blocking pipe of these materials, and in conveying equipment and oil tank, deposit easily, excessive deposition can influence the proper functioning of valve and instrument, even causes the generation of production accident.Therefore, generally adopt heat preservation technology at present or in conveyance conduit, inject the chemical agent technology or the employing pigging technology, with the line clogging that prevents that water compound and wax component from causing.Wherein, heat preservation technology is included as conveyance conduit thermal insulation layer, electric tracer heating system or hot fluid etc. is set.Companion's thermal power of electric tracer heating system is less relatively, and the power supply supply terminals is more, and is difficult to guarantee that electric tracer heating system self is completed into insulation system, so that conveyance conduit and TRACER road outer surface are not charged.In case outer tube takes place damaged, the electric tracer heating system of laying just means scraps.And conveyance conduit is carried out hot fluid insulation (steam tracing and conduction oil companion heat), and then needing to increase many auxiliary facilities, investment is big, and working life is short, and difficulty of construction is also very big.At present, in the development process in deep water hydrocarbon field, the insulation conveyance conduit that uses is the polyurethane foam insulation conveyance conduit, because the outer tube caliber of this pipeline is bigger, therefore, pipe laying barge has been proposed harsh requirement, and this insulation conveyance conduit can only be on active service being lower than under 115 ℃ the environment, can't satisfy the conveying requirement of superhigh-temperature and-pressure oil gas.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of rational in infrastructure, and construction is simple, high insulating effect, resistant to elevated temperatures aerogel ocean insulation conveyance conduit.
For achieving the above object; the utility model is taked following technological scheme: a kind of aerogel ocean insulation conveyance conduit; it is characterized in that: it comprises pipe in the steel that conveyance fluid uses and as the steel outer tube of protective layer; be provided with plurality of fixed centralized positioning device on the pipe in described steel between pipe and the described steel outer tube in the described steel; the outer surface of pipe is coated with corrosion-inhibiting coating in the described steel, forms thermal insulation layer by coating the aerogel heat-insulating blanket between the outer surface of described corrosion-inhibiting coating and the described steel outer tube.
The described aerogel heat-insulating blanket blanket shape compound insulating material that to be aerogel combine and form with a kind of material in polyester fibre, glass fibre, carbon fibre and the silica fibre.
The thermal conductivity of described aerogel heat-insulating blanket is 0.014～0.017W/mK, and the Applicable temperature scope is-200 ℃～200 ℃.
The material of each described centralized positioning device is engineering plastics.
The material of described corrosion-inhibiting coating is a clinkery epoxy powder.
The utility model is owing to take above technological scheme, it has the following advantages: 1, the utility model is because the interior pipe of employing steel is located in the pipe-in-pipe structure in the steel outer tube, carry out the coating of aerogel heat-insulating blanket during installation, the poling operation of the installation of centralized positioning device and steel outer tube, therefore, equipment is simple, and is easy to operate, is not subjected to the influence of inner tube diameter size.2, the utility model is owing to adopt the lower aerogel heat-insulating blanket of thermal conductivity as thermal insulating material, therefore, can provide good thermal insulation property for pipe-line system, and require one regularly in pipe-line system thermal insulation property target overall coefficient of heat transfer value, can reduce the outer tube caliber size, save the pipeline steel amount of expending, and then can use the pipe laying barge of less tonnage, reduce the operating cost of boats and ships.3, the aerogel heat-insulating blanket that adopts of the utility model can be in very big temperature range, for example-200 ℃～200 ℃, keep good thermal insulation property, have resistant to elevated temperatures characteristics, therefore, can be applied in the pipe conveying procedure of superhigh-temperature and-pressure oil-gas field development.4, the utility model is owing to adopting the lower aerogel heat-insulating blanket of thermal conductivity as thermal insulating material in steel between pipe and the steel outer tube, therefore, overall coefficient of heat transfer is little, can be applicable to need longer tieback pipeline project, to reduce the construction quantity and the marginal field development of platform.The utility model is simple in structure, and is easy to process, can be widely used in the process of carrying seabed crude oil or gas medium etc.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1; the utility model comprises the interior pipe 1 of steel that conveyance fluid is used; the outer surface of pipe 1 is coated with clinkery epoxy powder corrosion-inhibiting coating 2 in the steel; the outer surface of corrosion-inhibiting coating 2 forms thermal insulation layers by coating aerogel heat-insulating blanket 3, and pipe 1 and aerogel blanket insulation 3 are located in the steel outer tube 4 as protective layer in the steel.Be provided with some centralized positioning devices 5 between pipe 1 and the steel outer tube 4 in the steel, pipe 1 is fixing in each centralized positioning device 5 and the steel.Span between the centralized positioning device 5 is decided on the load condition of pipeline section, for the pipe laying of reel method, is spaced apart about 2m; For S type or the pipe laying of J type, then be the spacing of 4m or 6m.The effect of centralized positioning device 5 is that to keep in the steel pipe 1 concentric with steel outer tube 4, prevent aerogel heat-insulating blanket 3 install and process of deployment in wreck, and in steel, manage 1 and steel outer tube 4 between transmitted load.
Making method of the present utility model is:
1) outer surface of pipe 1 adopts electrostatic spraying clinkery epoxy powder anti-corrosion material in the steel after impeller blasting is handled, and the outer surface of pipe 1 forms clinkery epoxy powder corrosion-inhibiting coating 2 in steel.
2) in steel, be set with some centralized positioning devices 5 on the pipe 1.
3) outer surface of pipe 1 corrosion-inhibiting coating 2 coats aerogel heat-insulating blanket 3 and forms thermal insulation layer in steel.
4) thermal insulation layer with pipe 1 in the steel and 3 formation of aerogel blanket insulation penetrates in the steel outer tube 4, and steel outer tube 4 has the hydrostatic pressure resistant performance as protective layer, impact resistance, characteristics such as moisture resistance energy.
In the foregoing description, the blanket shape compound insulating material that aerogel heat-insulating blanket 3 combines and forms for aerogel and a kind of materials wherein such as polyester fibre, glass fibre, carbon fibre and silica fibre; The thermal conductivity of aerogel heat-insulating blanket 3 is low, is about 0.014～0.017W/mK when room temperature, and the Applicable temperature scope is-200 ℃～200 ℃, can (200 ℃～200 ℃) keep good thermal insulation property in very big temperature range.
In the foregoing description, the Manufacturing material of centralized positioning device 5 is engineering plastics.
In the foregoing description, pipe 1 and steel outer tube 4 all adopt carbon steel to make in the steel, and steel outer tube 4 has good hydrostatic pressure resistant performance as protective layer, impact resistance, characteristics such as moisture resistance energy.
In the foregoing description, the thickness of thermal insulation layer and protective layer can be determined arbitrarily according to practical engineering project.
The various embodiments described above only are used to illustrate the utility model; wherein the structure of each parts, Placement etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (7)
1. an aerogel ocean is incubated conveyance conduit; it is characterized in that: it comprises pipe in the steel that conveyance fluid uses and as the steel outer tube of protective layer; be provided with plurality of fixed centralized positioning device on the pipe in described steel between pipe and the described steel outer tube in the described steel; the outer surface of pipe is coated with corrosion-inhibiting coating in the described steel, forms thermal insulation layer by coating the aerogel heat-insulating blanket between the outer surface of described corrosion-inhibiting coating and the described steel outer tube.
2. insulation conveyance conduit in a kind of aerogel as claimed in claim 1 ocean is characterized in that: the described aerogel heat-insulating blanket blanket shape compound insulating material that to be aerogel combine and form with a kind of material in polyester fibre, glass fibre, carbon fibre and the silica fibre.
3. a kind of aerogel as claimed in claim 1 ocean insulation conveyance conduit, it is characterized in that: the thermal conductivity of described aerogel heat-insulating blanket is 0.014～0.017W/mK, the Applicable temperature scope is-200 ℃～200 ℃.
4. a kind of aerogel as claimed in claim 2 ocean insulation conveyance conduit, it is characterized in that: the thermal conductivity of described aerogel heat-insulating blanket is 0.014～0.017W/mK, the Applicable temperature scope is-200 ℃～200 ℃.
5. as claim 1 or 2 or 3 or 4 described a kind of aerogel oceans insulation conveyance conduit, it is characterized in that: the material of each described centralized positioning device is engineering plastics.
6. as claim 1 or 2 or 3 or 4 described a kind of aerogel oceans insulation conveyance conduit, it is characterized in that: the material of described corrosion-inhibiting coating is a clinkery epoxy powder.
7. a kind of aerogel as claimed in claim 5 ocean insulation conveyance conduit, it is characterized in that: the material of described corrosion-inhibiting coating is a clinkery epoxy powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202228255U CN201757249U (en) | 2010-06-04 | 2010-06-04 | Ocean heat preservation aerogel conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202228255U CN201757249U (en) | 2010-06-04 | 2010-06-04 | Ocean heat preservation aerogel conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201757249U true CN201757249U (en) | 2011-03-09 |
Family
ID=43644522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202228255U Expired - Lifetime CN201757249U (en) | 2010-06-04 | 2010-06-04 | Ocean heat preservation aerogel conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201757249U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434757A (en) * | 2011-12-09 | 2012-05-02 | 中国海洋石油总公司 | Sealed and waterproof seabed heat-preservation pipe |
| CN103836308A (en) * | 2013-03-08 | 2014-06-04 | 洛阳瑞泽石化工程有限公司 | Buried through road heavy oil pipe and buried method of buried through road heavy oil pipe |
| CN104553206A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Weather-proof material with functions of corrosion resistance and heat preservation and pipeline |
| CN107725906A (en) * | 2017-09-30 | 2018-02-23 | 江苏瑞腾涂装科技有限公司 | A kind of novel heat insulation tubing |
-
2010
- 2010-06-04 CN CN2010202228255U patent/CN201757249U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434757A (en) * | 2011-12-09 | 2012-05-02 | 中国海洋石油总公司 | Sealed and waterproof seabed heat-preservation pipe |
| CN102434757B (en) * | 2011-12-09 | 2013-05-15 | 中国海洋石油总公司 | Sealed and waterproof seabed heat-preservation pipe |
| CN103836308A (en) * | 2013-03-08 | 2014-06-04 | 洛阳瑞泽石化工程有限公司 | Buried through road heavy oil pipe and buried method of buried through road heavy oil pipe |
| CN104553206A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Weather-proof material with functions of corrosion resistance and heat preservation and pipeline |
| CN107725906A (en) * | 2017-09-30 | 2018-02-23 | 江苏瑞腾涂装科技有限公司 | A kind of novel heat insulation tubing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Patentee after: CNOOC Energy Development Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center Patentee before: CNOOC Energy Development Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: CNOOC Energy Development Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation Co-patentee before: CNOOC Energy Development Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110309 |
|
| CX01 | Expiry of patent term |