CN105805436A - Thermal insulating anti-corrosion petroleum pipeline - Google Patents
Thermal insulating anti-corrosion petroleum pipeline Download PDFInfo
- Publication number
- CN105805436A CN105805436A CN201610306350.XA CN201610306350A CN105805436A CN 105805436 A CN105805436 A CN 105805436A CN 201610306350 A CN201610306350 A CN 201610306350A CN 105805436 A CN105805436 A CN 105805436A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- outer layer
- petroleum pipeline
- pipeline
- steel pipeline
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/14—Coatings characterised by the materials used by ceramic or vitreous materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a thermal insulating anti-corrosion petroleum pipeline, which comprises an inner steel pipeline and an outer steel pipeline. The outer steel pipeline sleeves the inner steel pipeline. The inner steel pipeline is connected with the outer steel pipeline by means of connecting ribs. An anti-corrosion layer is arranged in the inner steel pipeline. A phenolic epoxy powder coating base layer is formed by spraying on a surface of the outer steel pipeline, and covered with a polyvinylidene chloride isolating outer layer; and the polyvinylidene chloride isolating outer layer is covered with a hard polypropylene anti-corrosion outer layer. Wax deposition in the steel pipeline due to excessive petroleum temperature drop in the long-distance transmission process can be prevented, thereby guaranteeing corrosion prevention, thermal insulation and long-term stable operation of the steel transmission pipeline.
Description
Technical field
The present invention relates to a kind of petroleum pipeline field, be specifically related to a kind of insulation antiseptic petroleum pipeline.
Background technology
Oil, in oil recovery process, owing to oil is too high containing cured amount, carries oil concentration big, and cause oil transportation difficulty, particularly in cold season, it is necessary to the problem that heating solves oil transportation difficulty on petroleum pipeline, pipeline not anticorrosion in existing pipeline heat-insulating technology, service life is short.
Summary of the invention
Namely the purpose of the present invention is in that to overcome the deficiencies in the prior art, it is provided that a kind of insulation antiseptic petroleum pipeline, solves existing petroleum transportation pipeline anticorrosion and the undesirable problem of heat insulation effect.
The present invention is achieved through the following technical solutions: a kind of insulation antiseptic petroleum pipeline, including interior steel pipe and outer steel pipe, described outer steel pipe is enclosed within interior steel pipe, connected by dowel between described steel pipe and outer steel pipe, in described interior steel pipe, be provided with anticorrosive coat；The pnenolic aldehyde epoxy powder coating bottom that described outer steel pipe surface spraying is formed, described pnenolic aldehyde epoxy powder coating bottom is coated with polyvinylidene chloride isolation outer layer, isolates the hard polypropylene asepticised outer layer covered on outer layer at described polyvinylidene chloride.
Preferably, the material of described anticorrosive coat is ceramic layer.
Preferably, it is additionally provided with polyethylene layer between described anticorrosive coat and interior steel pipe.
Preferably, described hard polypropylene asepticised outer layer is also coated with zinc aluminum alloy coating.
Preferably, described pnenolic aldehyde epoxy powder coating underlayer thickness is 20～80 μm.
Preferably, the thickness of described polyvinylidene chloride isolation outer layer is 50～100 μm.
Preferably, the thickness of described described hard polypropylene asepticised outer layer (7) is 2～3mm.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, by arranging interior steel pipe and outer steel pipe can effectively strengthen the intensity of oil pipeline, prevent leakage of oil, also help insulation, additionally by being provided with pottery anticorrosive coat in interior steel pipe, the frictional force between oil and pipeline can be reduced, prevent the generation of steel pipe wax deposition phenomenon simultaneously；
2, the pnenolic aldehyde epoxy powder coating bottom that steel pipe surface spraying is formed outside, pnenolic aldehyde epoxy powder coating bottom is coated with polyvinylidene chloride isolation outer layer, isolates the hard polypropylene asepticised outer layer covered on outer layer at polyvinylidene chloride；Can prevent oil temperature decline in long distance delivery process from too much causing the generation of steel pipe wax deposition phenomenon, can guarantee that steel conveyance conduit corrosion-resistant thermal insulation, work steadily in the long term.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of insulation antiseptic petroleum pipeline of the present invention.
Labelling and corresponding parts title in accompanying drawing:
Steel pipe in 1-, the outer steel pipe of 2-, 3-dowel, 4-anticorrosive coat, 5-pnenolic aldehyde epoxy powder coating bottom, 6-polyvinylidene chloride isolation outer layer, 7-hard polypropylene asepticised outer layer, 8-polyethylene layer.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment and the explanation thereof of the present invention are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1, one insulation antiseptic petroleum pipeline of the present invention, including interior steel pipe 1 and outer steel pipe 2, described outer steel pipe 2 is enclosed within interior steel pipe 1, connected by dowel 3 between described steel pipe 1 and outer steel pipe 2, in described interior steel pipe 1, be provided with anticorrosive coat 4；The pnenolic aldehyde epoxy powder coating bottom 5 that described outer steel pipe 2 surface spraying is formed, described pnenolic aldehyde epoxy powder coating bottom 5 is coated with polyvinylidene chloride isolation outer layer 6, isolates the hard polypropylene asepticised outer layer 7 covered on outer layer 6 at described polyvinylidene chloride.Pnenolic aldehyde epoxy powder coating bottom 5 thickness is 20～80 μm.The thickness of polyvinylidene chloride isolation outer layer 6 is 50～100 μm.The thickness of described hard polypropylene asepticised outer layer 7 is 2～3mm.By arranging interior steel pipe and outer steel pipe can effectively strengthen the intensity of oil pipeline, prevent leakage of oil, also help insulation, additionally by being provided with pottery anticorrosive coat in interior steel pipe, the frictional force between oil and pipeline can be reduced, prevent the generation of steel pipe wax deposition phenomenon simultaneously；The pnenolic aldehyde epoxy powder coating bottom that steel pipe surface spraying is formed outside, pnenolic aldehyde epoxy powder coating bottom is coated with polyvinylidene chloride isolation outer layer, isolates the hard polypropylene asepticised outer layer covered on outer layer at polyvinylidene chloride；Can prevent oil temperature decline in long distance delivery process from too much causing the generation of steel pipe wax deposition phenomenon, can guarantee that steel conveyance conduit corrosion-resistant thermal insulation, work steadily in the long term.Insulation complex silicate salt deposit it is filled with between interior steel pipe 1 and outer steel pipe 2.
Embodiment 2
As it is shown in figure 1, one insulation antiseptic petroleum pipeline of the present invention, on the basis of embodiment 1, the material of anticorrosive coat 4 is ceramic layer.By being provided with pottery anticorrosive coat in interior steel pipe 1, it is possible to reduce the frictional force between oil and pipeline, prevent the generation of steel pipe wax deposition phenomenon simultaneously
Embodiment 3
As it is shown in figure 1, one insulation antiseptic petroleum pipeline of the present invention, on the basis of embodiment 1, between anticorrosive coat 4 and interior steel pipe 1, it is additionally provided with polyethylene layer 8.Arranging polyethylene layer 8 between anticorrosive coat 4 and interior steel pipe 1, when being to prevent anticorrosive coat 4 from adopting ceramic material, it is easy to occur breaking, polyethylene layer 8 can play the effect of water-tight corrosion-proof.
Embodiment 4
As it is shown in figure 1, one insulation antiseptic petroleum pipeline of the present invention, on the basis of embodiment 1, hard polypropylene asepticised outer layer 7 is also coated with zinc aluminum alloy coating.Increase antiseptic effect.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (7)
1. an insulation antiseptic petroleum pipeline, including interior steel pipe (1) and outer steel pipe (2), it is characterized in that: described outer steel pipe (2) is enclosed within interior steel pipe (1), connected by dowel (3) between described steel pipe (1) and outer steel pipe (2), in described interior steel pipe (1), be provided with anticorrosive coat (4)；
Pnenolic aldehyde epoxy powder coating bottom (5) that described outer steel pipe (2) surface spraying is formed, described pnenolic aldehyde epoxy powder coating bottom (5) is coated with polyvinylidene chloride isolation outer layer (6), isolates upper hard polypropylene asepticised outer layer (7) covered of outer layer (6) at described polyvinylidene chloride.
2. a kind of insulation antiseptic petroleum pipeline according to claim 1, it is characterised in that: the material of described anticorrosive coat (4) is ceramic layer.
3. a kind of insulation antiseptic petroleum pipeline according to claim 1, it is characterised in that: it is additionally provided with polyethylene layer (8) between described anticorrosive coat (4) and interior steel pipe (1).
4. a kind of insulation antiseptic petroleum pipeline according to claim 1, it is characterised in that: described hard polypropylene asepticised outer layer (7) is also coated with zinc aluminum alloy coating.
5. a kind of insulation antiseptic petroleum pipeline according to claim 1, it is characterised in that: described pnenolic aldehyde epoxy powder coating bottom (5) thickness is 20～80 μm.
6. a kind of insulation antiseptic petroleum pipeline according to claim 1, it is characterised in that: the thickness of described polyvinylidene chloride isolation outer layer (6) is 50～100 μm.
7. a kind of insulation antiseptic petroleum pipeline according to claim 1, it is characterised in that: the thickness of described described hard polypropylene asepticised outer layer (7) is 2～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306350.XA CN105805436A (en) | 2016-05-11 | 2016-05-11 | Thermal insulating anti-corrosion petroleum pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306350.XA CN105805436A (en) | 2016-05-11 | 2016-05-11 | Thermal insulating anti-corrosion petroleum pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105805436A true CN105805436A (en) | 2016-07-27 |
Family
ID=56455764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306350.XA Pending CN105805436A (en) | 2016-05-11 | 2016-05-11 | Thermal insulating anti-corrosion petroleum pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105805436A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402516A (en) * | 2016-11-27 | 2017-02-15 | 无锡金顶石油管材配件制造有限公司 | Anti-corrosion petroleum pipeline structure |
| CN107131393A (en) * | 2017-06-08 | 2017-09-05 | 大连辉华新材料有限公司 | A kind of thermal insulation tubing and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228167Y (en) * | 1995-05-27 | 1996-05-29 | 山东省莱州市精工塑料厂 | Universal double-walled pipe |
| JPH11325326A (en) * | 1998-05-15 | 1999-11-26 | Minoru Tanaka | Manufacture of composite pipe |
| CN101255932A (en) * | 2008-04-03 | 2008-09-03 | 段云平 | PP-R double layer heat preservation pipe |
| JP2009047285A (en) * | 2007-08-22 | 2009-03-05 | Sekisui Chem Co Ltd | Heat insulating material for piping |
| CN104482328A (en) * | 2014-12-09 | 2015-04-01 | 上海海隆石油化工研究所 | Anticorrosion insulation multilayer system for deep-sea steel delivery pipes |
| CN204493922U (en) * | 2015-03-25 | 2015-07-22 | 西南石油大学 | A kind of insulation antiseptic petroleum pipeline |
| CN204986071U (en) * | 2015-10-08 | 2016-01-20 | 新疆绿赛节水科技开发有限公司 | High strength feedwater is with polyethylene PE tubular product |
-
2016
- 2016-05-11 CN CN201610306350.XA patent/CN105805436A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228167Y (en) * | 1995-05-27 | 1996-05-29 | 山东省莱州市精工塑料厂 | Universal double-walled pipe |
| JPH11325326A (en) * | 1998-05-15 | 1999-11-26 | Minoru Tanaka | Manufacture of composite pipe |
| JP2009047285A (en) * | 2007-08-22 | 2009-03-05 | Sekisui Chem Co Ltd | Heat insulating material for piping |
| CN101255932A (en) * | 2008-04-03 | 2008-09-03 | 段云平 | PP-R double layer heat preservation pipe |
| CN104482328A (en) * | 2014-12-09 | 2015-04-01 | 上海海隆石油化工研究所 | Anticorrosion insulation multilayer system for deep-sea steel delivery pipes |
| CN204493922U (en) * | 2015-03-25 | 2015-07-22 | 西南石油大学 | A kind of insulation antiseptic petroleum pipeline |
| CN204986071U (en) * | 2015-10-08 | 2016-01-20 | 新疆绿赛节水科技开发有限公司 | High strength feedwater is with polyethylene PE tubular product |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402516A (en) * | 2016-11-27 | 2017-02-15 | 无锡金顶石油管材配件制造有限公司 | Anti-corrosion petroleum pipeline structure |
| CN107131393A (en) * | 2017-06-08 | 2017-09-05 | 大连辉华新材料有限公司 | A kind of thermal insulation tubing and preparation method thereof |
| CN107131393B (en) * | 2017-06-08 | 2024-06-11 | 大连辉华新材料有限公司 | Thermal insulation oil pipe and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |
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| RJ01 | Rejection of invention patent application after publication |