CN2391076Y - High-temperature resistance buried thermal insulation pipeline - Google Patents
High-temperature resistance buried thermal insulation pipeline Download PDFInfo
- Publication number
- CN2391076Y CN2391076Y CN 99225288 CN99225288U CN2391076Y CN 2391076 Y CN2391076 Y CN 2391076Y CN 99225288 CN99225288 CN 99225288 CN 99225288 U CN99225288 U CN 99225288U CN 2391076 Y CN2391076 Y CN 2391076Y
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- thermal insulation
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- utility
- polyurethane foam
- insulation layer
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Abstract
The utility model relates to a high-temperature buried thermal insulation pipeline, which is used for viscous oil extraction and transportation and petrochemical industry, and a steel pipe 5 is respectively covered or coated with a thermal insulation anticorrosion coating 4, an extra-fine glass wool heat-resisting thermal insulation layer 3, a polyurethane foam high efficiency thermal insulation layer 2 and a polyethylene inhibitory layer 1 from inside to outside. The utility model has the advantages of good compression resistance, good corrosion resistance, high temperature resistance, good thermal insulation, long service life, low construction cost, etc. In addition, the utility model can be preset in factories and can be used for repairing openings on site, therefore, the utility model can assure the construction period on site and can increase engineering quality.
Description
The utility model relates to a kind of high temperature resistant buried heat insulation pipe road that is used for defeated production of viscous crude field thermal recovery collection and petrochemical industry.
The heat insulation work of crude oil gathering pipelines and the used pipeline of steam injection pipeline petrochemical industry is the important topic that viscous crude field thermal recovery collection is defeated and petrochemical industry is produced.At present, oil thermal recovery pipeline and pipelines and petrochemical pipelines adopt built on stilts laying mostly, mainly are to consider pipeline linear expansion and the outer high-temperature-resistant thermal-insulation material that coats, and the shortcoming of this kind aerial pipeline is that consume material is many, and construction cost is higher.A small amount of foam yellow jacket buried-pipe laying gathering line that adopts, then high temperature resistant because of it, decay resistance is relatively poor, working life is shorter, thereby fails large scale application.Though heatproof, the decay resistance ring-like direct-burried insulation of vacuum heat insulation tube and outer steel pipe preferably are comparatively suitable, because of cost is very high, its application are restricted.
The purpose of this utility model is to provide the high temperature resistant buried heat insulation pipe road of a kind of high temperature resistant, high strength, low cost, high insulating effect.
The utility model is to realize like this.This kind is high temperature resistant, and the buried heat insulation pipe road is made up of polyethylene protective coating, the high-efficiency insulated layer of polyurethane foam, the heat-resisting thermal insulation layer of super glass wool, HT--3 heatproof corrosion-inhibiting coating and steel pipe, i.e. steel pipe coated or coated high-efficiency insulated layer of heatproof corrosion-inhibiting coating, the heat-resisting thermal insulation layer of super glass wool, polyurethane foam and polyethylene protective coating arranged successively from the inside to the outside outward.Its working process comprise to steel tube surface carry out decontamination, deoil, processing of rust removing, brushing heatproof anticorrosive paint, coated super glass wool shell (being heat-resisting thermal insulation layer), buckling die foaming form polyurethane foam external thermal insulation (being high-efficiency insulated layer), twine the width of cloth penetrates crosslinked polyethylene shrink belt protective coating and check the repaired mouth supervisor.
The utlity model has advantages such as resistance to compression, anticorrosive, high temperature resistant, high insulating effect, long service life, construction cost be low, adopt this kind buried heat insulation pipe road can solve the defeated and petrochemical iy produced problem of hot extracting thick oil collection satisfactorily, and can obtain good economic benefit.In addition, this kind pipeline is prefabricated in factory, on-the-spot repaired mouth, thereby can guarantee the site operation duration, and improving construction quality, the many difficulties and the construction quality that overcome on-the-spot heat preservation construction are subjected to deficiencies such as weather, environment, peopleware influence.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing enforcement of the present utility model is described further.
As shown in the figure, the utility model is made up of polyethylene protective coating 1, the high-efficiency insulated layer 2 of polyurethane foam, the heat-resisting thermal insulation layer 3 of super glass wool, heatproof corrosion-inhibiting coating 4 and steel pipe 5.Wherein, polyethylene protective coating 1 claims polyethylene yellow jacket again, adopts the width of cloth to penetrate the crosslinked polyethylene shrink belt and is entwined, it is axial, the hoop tensile strength is equal 〉=and 20Mpa, thickness 1.8--4mm.The high-efficiency insulated layer 2 of polyurethane foam adopts polyurethane foam, and its thickness is 15--50mm.The heat-resisting thermal insulation layer 3 of super glass wool adopts polyester wadding, does the Bond oven dry with phenolic resin and forms, and its thickness is 40--100mm.Heatproof corrosion-inhibiting coating 4 adopts HT--3 coating.Steel pipe 5 calibers can be Φ 48--Φ 529, and joint length is 6--12m..
Claims (1)
1, a kind of high temperature resistant buried heat insulation pipe road, form by polyethylene protective coating (1), the high-efficiency insulated layer of polyurethane foam (2), the heat-resisting thermal insulation layer of super glass wool (3), heatproof corrosion-inhibiting coating (4) and steel pipe (5), it is characterized in that the outer coated or coated heatproof corrosion-inhibiting coating (4), the heat-resisting thermal insulation layer of super glass wool (3), the high-efficiency insulated layer of polyurethane foam (2) and polyethylene protective coating (1) arranged successively from inside to outside of steel pipe (5); Wherein, polyethylene protective coating (1) adopts the width of cloth to penetrate the crosslinked polyethylene shrink belt and is entwined, thickness 1.8--4mm, the high-efficiency insulated layer of polyurethane foam (2) thickness 15--50mm, the heat-resisting thermal insulation layer of super glass wool (3) adopts polyester wadding, does the Bond oven dry with phenolic resin and forms, thickness 40--100mm, heatproof corrosion-inhibiting coating (4) adopts HT--3 coating, steel pipe (5) caliber 48--529mm, single long 6--12m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225288 CN2391076Y (en) | 1999-10-12 | 1999-10-12 | High-temperature resistance buried thermal insulation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225288 CN2391076Y (en) | 1999-10-12 | 1999-10-12 | High-temperature resistance buried thermal insulation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2391076Y true CN2391076Y (en) | 2000-08-09 |
Family
ID=34015189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99225288 Expired - Fee Related CN2391076Y (en) | 1999-10-12 | 1999-10-12 | High-temperature resistance buried thermal insulation pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2391076Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968161A (en) * | 2014-05-23 | 2014-08-06 | 张楠 | Rubber hose |
| CN104358943A (en) * | 2014-10-30 | 2015-02-18 | 无锡同心塑料制品有限公司 | Anti-corrosion thermal insulation pipe |
-
1999
- 1999-10-12 CN CN 99225288 patent/CN2391076Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968161A (en) * | 2014-05-23 | 2014-08-06 | 张楠 | Rubber hose |
| CN104358943A (en) * | 2014-10-30 | 2015-02-18 | 无锡同心塑料制品有限公司 | Anti-corrosion thermal insulation pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |