CN205350613U - Corrosion -resistant gas pipe - Google Patents
Corrosion -resistant gas pipe Download PDFInfo
- Publication number
- CN205350613U CN205350613U CN201620063163.9U CN201620063163U CN205350613U CN 205350613 U CN205350613 U CN 205350613U CN 201620063163 U CN201620063163 U CN 201620063163U CN 205350613 U CN205350613 U CN 205350613U
- Authority
- CN
- China
- Prior art keywords
- layer
- corrosion
- gas pipe
- metal tube
- fuel gas
- 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 - Fee Related
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 28
- 230000007797 corrosion Effects 0.000 title claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 239000004593 Epoxy Substances 0.000 claims abstract description 12
- 229920000098 polyolefin Polymers 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 81
- 239000002737 fuel gas Substances 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 17
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 5
- 239000005030 aluminium foil Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000002655 kraft paper Substances 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 239000011230 binding agent Substances 0.000 abstract 2
- 238000004321 preservation Methods 0.000 abstract 2
- 239000003973 paint Substances 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 16
- 239000003345 natural gas Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000002671 adjuvant Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000003963 antioxidant agent Substances 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 239000004595 color masterbatch Substances 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 229920001038 ethylene copolymer Polymers 0.000 description 3
- 239000002114 nanocomposite Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000003487 anti-permeability effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model discloses a corrosion -resistant gas pipe, including a pipe body, the inlayer of body is the PE plastic layer, and the PE plastic layer outside is equipped with the tubular metal resonator layer, tubular metal resonator layer surface scribbles the anticorrosive coating, and the periphery is equipped with heat preservation and waterproof layer in proper order, the anticorrosive coating is including the most inboard epoxy powder layer, the binder layer of centre and the polyolefin outer jacket in the outside to it applies paint with a brush in proper order to go up the three -layer tubular metal resonator layer surface. The anticorrosive coating including the most inboard epoxy powder layer, middle binder layer and the polyolefin outer jacket in the outside for the pipeline body has clinkering epoxy excellent anticorrosion performance, insulating properties and strong impermeabilisation performance concurrently, and then has improved its application scope, has very long life in rugged environment. And simultaneously, the utility model discloses waterproof, heat preservation, corrosion resisting property still have to pleasing to the eye low -priced, construction convenience, durable has very big market competition.
Description
Technical field
This utility model relates to gas supply pipe field, is specially a kind of corrosion-resistant fuel gas pipe.
Background technology
Natural gas is the extraction material of the gaseous hydrocarbons of oil, and natural gas is divided into associated gas and non-associated gas two kinds.China applies in a lot of city natural gas at present, or for domestic gas, or for industrial chemicals, or for industrial fuel.Along with Chinese national economy comparatively fast develops, the requirement improving energy resource structure is increasingly urgent, adds the increasingly stringent of environmental requirement and the enhancing of consumer's environmental consciousness, thus the demand of clean energy resource natural gas is had very fast growth.The status of natural gas is along with rising.Sharply increasing of Natural gas consumption, and pipe network facilities is one of primary condition of natural gas development, is also the important symbol of modernization of the country.Therefore pipeline network of fuel gas in city facility is built energetically and is developed rapidly, becomes the necessary guarantee of city survival and development and the infrastructure that country is important.
PE material, due to advantages such as its intensity are high, high temperature resistant, corrosion resistance is good, nontoxic, is widely used in water pipe and Gas Pipe manufactures field.Owing to it can't get rusty, anti-flammability is strong, so being the desirable tubing as Gas Pipe；The performances such as wherein PE material has corrosion resistance relative to steel pipe, unsuitable cooperating microorganisms, therefore great majority all adopt the structure of MULTILAYER COMPOSITE at present, can improve the service life of pipeline, can improve again the rigidity of pipeline itself.Owing to pipeline needs to be imbedded in underground throughout the year, the erosion of subsoil water, low temperature and soda acid row environment can be subject to, traditional pipeline mostly adopts waterproof layer, the PE core tubular construction design of anticorrosive coat and inside, but its anticorrosive coat is under long soda acid and moist environment, can cause the damage of anticorrosive coat itself, service life is low, often cause leakage phenomenon, add maintenance cost, and cause substantial amounts of energy waste.
Utility model content
The purpose of utility model: in order to overcome above deficiency, the open a kind of corrosion-resistant fuel gas pipe of this utility model, its reasonable in design, long service life, there is good decay resistance.
Technical scheme: in order to realize object above, the utility model discloses a kind of corrosion-resistant fuel gas pipe, and including body, described body innermost layer is PE plastic layer, is provided with metal tube layer outside PE plastic layer；Described metal tube layer outer surface scribbles anticorrosive coat, and periphery is sequentially provided with heat-insulation layer and waterproof layer；Described anticorrosive coat includes the polyolefin outer jacket in the epoxy powder layer of inner side, middle adhesive layer and outside, and above three layers is brushed successively at described metal tube layer outer surface.This utility model reasonable in design, has good waterproof, insulation and anticorrosion effect；Wherein said anticorrosive coat includes the polyolefin outer jacket in the epoxy powder layer of inner side, middle adhesive layer and outside, above three layers is brushed at described metal tube layer outer surface successively, make pipeline body has the excellent anti-corrosion performance of fusion bonded epoxy concurrently, good caking property is excellent with antikathode stripping performance and polyolefin mechanical performance, insulating properties and strong anti-permeability performance, and then improve its scope of application, rugged environment has very long service life.
Further, above-mentioned a kind of corrosion-resistant fuel gas pipe, the thickness proportion of described PE plastic layer, metal tube layer, anticorrosive coat, heat-insulation layer and waterproof layer is 5:3:1:4:1.
Further, above-mentioned a kind of corrosion-resistant fuel gas pipe, described PE plastic layer includes high-density polyethylene resin, color masterbatch and adjuvant.
Further, above-mentioned a kind of corrosion-resistant fuel gas pipe, described adjuvant includes antioxidant, clay nanocomposites and crosslinking high density ethylene copolymer.
Above-described PE plastic layer is mixed with antioxidant, clay nanocomposites and crosslinking high density ethylene copolymer by high-density polyethylene resin, it is ensured that the structural stability of the PE plastic layer of pipe interior, does not have fragmentation phenomenon；Antioxidant improves the service life of PE material simultaneously, does not have deterioration by oxidation phenomenon, cause that fault of construction occurs in pipeline itself in the process contacted with natural gas for a long time.
Further, above-mentioned a kind of corrosion-resistant fuel gas pipe, described metal tube layer adopts Q345B steel alloy to prepare.
Further, above-mentioned a kind of corrosion-resistant fuel gas pipe, described heat-insulation layer is the hard polyurethane foams of density 60～80Kg/m3.Polyurethane heat-insulation performance is good, the heat loss that can make pipeline reaches to be only the 25% of traditional piping material, and has very strong waterproof and decay resistance, and under cryogenic, also there is good corrosion-resistant and impact resistance, further increase the service life of pipeline.
Further, above-mentioned a kind of corrosion-resistant fuel gas pipe, described waterproof layer is aluminium foil and kraft paper and the composite being sandwiched between glass fiber yarn.This structure has fire-retardant, waterproof, high energy-conservation performance and cheap, easy construction attractive in appearance, durable in use.
Technique scheme is it can be seen that described a kind of corrosion-resistant fuel gas pipe of the present utility model has the advantages that above-described a kind of corrosion-resistant fuel gas pipe, and it is reasonable in design, has good waterproof, insulation and anticorrosion effect；Wherein said anticorrosive coat includes the polyolefin outer jacket in the epoxy powder layer of inner side, middle adhesive layer and outside, above three layers is brushed at described metal tube layer outer surface successively, make pipeline body has the excellent anti-corrosion performance of fusion bonded epoxy concurrently, good caking property is excellent with antikathode stripping performance and polyolefin mechanical performance, insulating properties and strong anti-permeability performance, and then improve its scope of application, rugged environment has very long service life.Simultaneously, adopt polyurethane material as heat-insulation layer, and aluminium foil and kraft paper and be sandwiched between the composite of glass fiber yarn as outside waterproof layer, make it have better waterproof, insulation, decay resistance, and cheap, easy construction attractive in appearance, durable in use, there is the very big market competitiveness.
Accompanying drawing explanation
Fig. 1 is the structural representation of corrosion-resistant fuel gas pipe described in the utility model；
Fig. 2 is the structural representation of anticorrosive coat described in the utility model；
In figure: 1-PE plastic layer, 2-metal tube layer, 3-anticorrosive coat, 31-epoxy powder layer, 32-adhesive layer, 33-polyolefin outer jacket, 4-heat-insulation layer, 5-waterproof layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model detailed description of the invention being described in detail, example is only limited to explanation this utility model, is not intended to limit scope of the present utility model.
Embodiment 1
A kind of corrosion-resistant fuel gas pipe described in the utility model, as it is shown in figure 1, include body, its middle tube body innermost layer is be provided with metal tube layer 2 outside PE plastic layer 1, PE plastic layer 1；Scribbling anticorrosive coat 3 at described metal tube layer 2 outer surface, periphery is sequentially provided with heat-insulation layer 4 and waterproof layer 5；Wherein said PE plastic layer 1 includes high-density polyethylene resin, color masterbatch and adjuvant, anticorrosive coat 3 described in adjuvant includes the polyolefin outer jacket 33 in the epoxy powder layer 31 of inner side, middle adhesive layer 32 and outside, and above three layers is brushed successively at described metal tube layer 2 outer surface.
Embodiment 2
A kind of corrosion-resistant fuel gas pipe described in the utility model, as it is shown in figure 1, include body, its middle tube body innermost layer is be provided with metal tube layer 2 outside PE plastic layer 1, PE plastic layer 1；Scribbling anticorrosive coat 3 at described metal tube layer 2 outer surface, periphery is sequentially provided with heat-insulation layer 4 and waterproof layer 5；The thickness proportion of described PE plastic layer 1, metal tube layer 2, anticorrosive coat 3, heat-insulation layer 4 and waterproof layer 5 is 5:3:1:4:1；Wherein said PE plastic layer 1 includes high-density polyethylene resin, color masterbatch and adjuvant, adjuvant includes antioxidant, clay nanocomposites and crosslinking high density ethylene copolymer and jointly mixes, and then ensure the sound construction of PE plastic layer, do not have fracture phenomena, improve its service life；The steel alloy processing that metal tube layer 2 adopts material to be Q348B prepares；Described anticorrosive coat 3 includes the polyolefin outer jacket 33 in the epoxy powder layer 31 of inner side as shown in Figure 2, middle adhesive layer 32 and outside, and above three layers is brushed successively at described metal tube layer 2 outer surface.It addition, the hard polyurethane foams that its heat-insulation layer 4 is density 60～80Kg/m3, waterproof layer (5) is aluminium foil and kraft paper and the composite being sandwiched between glass fiber yarn；Make it have better waterproof, insulation, decay resistance and cheap, easy construction attractive in appearance, durable in use.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvement, these improvement also should be regarded as protection domain of the present utility model.
Claims (5)
1. a corrosion-resistant fuel gas pipe, including: body, it is characterised in that: described body innermost layer is PE plastic layer (1), and PE plastic layer (1) outside is provided with metal tube layer (2)；Described metal tube layer (2) outer surface scribbles anticorrosive coat (3), and periphery is sequentially provided with heat-insulation layer (4) and waterproof layer (5)；Described anticorrosive coat (3) includes the polyolefin outer jacket (33) in the epoxy powder layer (31) of inner side, middle adhesive layer (32) and outside, and above three layers is brushed successively at described metal tube layer (2) outer surface.
2. a kind of corrosion-resistant fuel gas pipe according to claim 1, it is characterised in that: the thickness proportion of described PE plastic layer (1), metal tube layer (2), anticorrosive coat (3), heat-insulation layer (4) and waterproof layer (5) is 5:3:1:4:1.
3. a kind of corrosion-resistant fuel gas pipe according to claim 1, it is characterised in that: described metal tube layer (2) adopts Q345B steel alloy to prepare.
4. a kind of corrosion-resistant fuel gas pipe according to claim 1, it is characterised in that: the hard polyurethane foams that described heat-insulation layer (4) is density 60～80Kg/m3.
5. a kind of corrosion-resistant fuel gas pipe according to claim 1, it is characterised in that: described waterproof layer (5) is aluminium foil and kraft paper and the composite being sandwiched between glass fiber yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620063163.9U CN205350613U (en) | 2016-01-22 | 2016-01-22 | Corrosion -resistant gas pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620063163.9U CN205350613U (en) | 2016-01-22 | 2016-01-22 | Corrosion -resistant gas pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350613U true CN205350613U (en) | 2016-06-29 |
Family
ID=56177068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620063163.9U Expired - Fee Related CN205350613U (en) | 2016-01-22 | 2016-01-22 | Corrosion -resistant gas pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350613U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265958A (en) * | 2017-08-02 | 2017-10-20 | 合肥帧讯低温科技有限公司 | Heat insulation pipeline for conveying low-temperature medium |
| CN107588532A (en) * | 2017-08-03 | 2018-01-16 | 合肥兆基模具工业有限公司 | A kind of adjustable air-conditioner drain plastic tube |
| CN108758106A (en) * | 2018-07-24 | 2018-11-06 | 新兴中燃城市燃气发展有限公司 | A kind of gas pipeline and its preparation process that heat preservation is durable |
| CN113915423A (en) * | 2020-07-10 | 2022-01-11 | 国家能源投资集团有限责任公司 | Corrosion-resistant pipeline and application |
-
2016
- 2016-01-22 CN CN201620063163.9U patent/CN205350613U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265958A (en) * | 2017-08-02 | 2017-10-20 | 合肥帧讯低温科技有限公司 | Heat insulation pipeline for conveying low-temperature medium |
| CN107588532A (en) * | 2017-08-03 | 2018-01-16 | 合肥兆基模具工业有限公司 | A kind of adjustable air-conditioner drain plastic tube |
| CN108758106A (en) * | 2018-07-24 | 2018-11-06 | 新兴中燃城市燃气发展有限公司 | A kind of gas pipeline and its preparation process that heat preservation is durable |
| CN113915423A (en) * | 2020-07-10 | 2022-01-11 | 国家能源投资集团有限责任公司 | Corrosion-resistant pipeline and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |