CN218378062U - Pipeline with multi-composite-layer structure - Google Patents
Pipeline with multi-composite-layer structure Download PDFInfo
- Publication number
- CN218378062U CN218378062U CN202222963083.7U CN202222963083U CN218378062U CN 218378062 U CN218378062 U CN 218378062U CN 202222963083 U CN202222963083 U CN 202222963083U CN 218378062 U CN218378062 U CN 218378062U
- Authority
- CN
- China
- Prior art keywords
- layer
- wall
- steel
- main body
- pipe
- 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.)
- Active
Links
Images
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a pipeline of many composite bed structures, including steel-plastic composite main body pipe layer, structure supporting layer and cement pipe layer. A plurality of axial inner side cavities which are not communicated are arranged between the inner wall of the structure supporting layer and the outer wall of the steel-plastic composite main body pipe layer, and a plurality of axial outer side cavities which are not communicated are arranged between the outer wall of the structure supporting layer and the inner wall of the cement pipe layer. And a protective layer is also arranged on the inner wall of the steel-plastic composite main body pipe layer and/or the outer wall of the cement pipe layer. The pipeline of this many composite bed structures possesses anti chlorion, anti hydrogen sulfide erosion, and structural strength is high, and temperature difference resistance can be high, long service life and durability are good, characteristics such as the operation is stable and safe, can adapt to ocean high salt, high pressure moreover, the temperature difference is big etc. environment, but the efficient reduces pipeline corrosion rate, improves pipeline service life.
Description
Technical Field
The utility model relates to a pipeline, concretely relates to pipeline of many composite bed structures belongs to pipeline equipment technical field.
Background
The pipeline transportation method has the advantages of high safety, good continuity and large transportation quantity, and is particularly widely applied to the transportation of ocean oil and gas. However, with the continuous increase of the mining depth and the mining distance, higher requirements are provided for the compression resistance and the shear strength of the pipeline under the complex environment of high pressure, high salt and low temperature, so that the pressure required to be borne by the marine pipeline and the temperature difference between the inside and the outside of the pipeline are increased; the marine environment is more complex, the erosion of chloride ions, sulfate ions and the like is also intensified, and the service life of the marine pipeline is seriously threatened.
The remote deep sea oil pipe has the advantages that along with the depth enhancement, the pressure intensity is increased, the corrosion is increased, the temperature is reduced, the ocean environment is more complex, and the like, so that the ocean pipeline is easy to break and damage, and great economic loss is easily caused. The measures adopted by the prior art include: 1: titanium and nickel-aluminum alloy are added properly in the process of constructing the pipeline, so that the corrosion resistance of the pipeline is improved, but the price is higher; 2: the installation of the sacrificial anode can effectively prevent cathode metal from being corroded, but can only be used in a full-immersion state, and the installation is complicated, and the later repair work is difficult; 3: the coating such as carbon fiber is used in a large number, and application of too many kinds of fibers easily causes waste, and the construction is loaded down with trivial details, very big improvement pipeline engineering cost, through adding multiple kinds of fiber material parcel moreover, along with the parcel layer constantly increases for can use the regional constantly reducing of proportion, cause the waste, consequently prior art still has great promotion space.
SUMMERY OF THE UTILITY MODEL
Poor to pipeline structure shock resistance among the prior art, easy fracture, the price is too high, the installation is loaded down with trivial details, repair not enough such as difficulty, the utility model provides a many composite bed structure's pipeline, this many composite bed structure's pipeline possess anti chloridion, anti hydrogen sulfide erosion, structural strength is high, the temperature difference resistance ability is high, long service life and durability are good, characteristics such as the operation is stable and safety, and can overcome ocean high salt, the problem that ordinary pipeline easily appears in high-pressure difference in temperature such as big, the efficient reduces pipeline corrosion rate, improves pipeline service life.
In order to achieve the above technical purpose, the utility model discloses the technical scheme who adopts specifically as follows:
the utility model provides a pipeline of many composite layer structures, this pipeline includes that steel-plastic composite main body pipe layer, structure supporting layer and cement pipe layer. The structure supporting layer is arranged between the outer wall of the steel-plastic composite main body pipe layer and the inner wall of the cement pipe layer. A plurality of axial inner side cavities which are not communicated are arranged between the inner wall of the structure supporting layer and the outer wall of the steel-plastic composite main body pipe layer, and a plurality of axial outer side cavities which are not communicated are arranged between the outer wall of the structure supporting layer and the inner wall of the cement pipe layer. And a protective layer is also arranged on the inner wall of the steel-plastic composite main body pipe layer and/or the outer wall of the cement pipe layer.
As preferred, this pipeline is the four-layer structure, including by interior to outer compound main part pipe layer, structure supporting layer and the cement pipe layer of steel-plastic that cup joints in proper order to and set up the interior anticorrosive coating on steel-plastic compound main part pipe layer inner wall. The inner anti-corrosion protective layer is an epoxy resin layer.
As preferred, this pipeline is the four-layer structure, including by interior and outer compound main part pipe layer, structure supporting layer and the cement pipe layer of steel that cup joints in proper order to and set up the outer wear-resisting protective layer on cement pipe layer outer wall. The outer wear-resistant protective layer is a carbon fiber-epoxy resin composite layer.
As preferred, this pipeline is five-layer structure, including by interior and outer compound main part pipe layer, structure supporting layer and the cement pipe layer of steel-plastic who cup joints in proper order to and set up the interior anticorrosive coating on steel-plastic compound main part pipe layer inner wall and set up the outer wear-resisting protective layer on cement pipe layer outer wall. The inner anticorrosion protective layer is an epoxy resin layer. The outer wear-resistant protective layer is a carbon fiber-epoxy resin composite layer.
As preferred, this pipeline is six layer structures, including by interior and outer interior anticorrosive protection layer, steel-plastic composite main body pipe layer, structure supporting layer, cement pipe layer and the outer wear-resisting protective layer that cup joints in proper order to and set up the insulating layer between structure supporting layer and cement pipe layer. The heat insulation layer is a polyurethane layer. The axially outer chamber is located between the outer wall of the structural support layer and the inner wall of the thermal insulation layer.
As preferred, this pipeline is seven layer structures, including by interior and outer interior anticorrosive protection layer, steel-plastic composite main body pipe layer, structure supporting layer, insulating layer, cement pipe layer and the outer wear-resisting protective layer that cup joints in proper order to and set up the waterproof layer between insulating layer and cement pipe layer. The waterproof layer is a polyethylene layer.
Preferably, the steel-plastic composite main pipe layer comprises a thermoplastic composite matrix framework and a rigid cladding structure. The rigid coating structure is a steel wire or a steel sheet with holes wound and coated on the thermoplastic composite matrix framework.
Preferably, the cement pipe layer comprises a mixing main body formed by jointly using fly ash and magnesium phosphate cement, and rigid fibers embedded in the mixing main body. Preferably, the rigid fibers are steel fibers.
Preferably, the structural support layer comprises a support body, a ring wall protrusion and a groove. The support main body is an aluminum-silicon ceramsite ring pipe. A plurality of annular wall bulges are uniformly arranged on the outer pipe wall of the support main body, and a plurality of grooves are uniformly formed in the inner pipe wall of the support main body.
Preferably, the annular wall protrusion is a triangle-like boss. The groove is a V-shaped groove. Along the hoop of supporting body, a recess has all been seted up on the supporting body's that each rampart arch corresponds inner wall.
In the prior art, the existing conveying pipeline structure has the defects of poor impact resistance, easy breakage, overhigh price, influence on anti-corrosion construction, complex installation, difficult later-period repair work and the like; although the corrosion resistance of the pipeline steel is improved by the partial conveying pipeline, the corrosion mechanism still exists, and the corrosion risk still exists; and partial pipelines use various fiber protection materials, waste is easily caused by application of excessive fibers, construction is complicated, and cost is high.
The utility model discloses in, the cement pipe layer of the pipeline of the multi-composite-layer structure that provides is the magnesium phosphate cement layer that mixes fly ash and steel fibre. The magnesium phosphate cement has the characteristics of quick setting, good durability, high strength, low shrinkage rate, low permeability, impact resistance, fire resistance, low crack, scratch resistance, high viscosity and the like, can shorten the construction period, obviously reduces the permeability after the fly ash and the steel fiber are added, has better chlorine ion and hydrogen sulfide corrosion resistance, and prolongs the service life of a pipeline. Generally speaking, in the utility model discloses a cement pipe layer, the doping volume of steel fibre in the magnesium phosphate cement should be not less than 0.5% of cement layer total volume and be suitable, and the doping volume of fly ash should be not less than 10% of cement layer total mass and be suitable. The magnesium phosphate cement is prepared by mixing magnesia and soluble phosphate according to a certain proportion, taking water as a reaction medium, rapidly carrying out acid-base neutralization reaction to generate an inorganic cementing material with stronger viscosity, and has the characteristics of quick setting, early strength, high toughness, wear resistance, strong frost resistance, high cohesiveness with new and old concrete, low carbon, environmental protection, and resource sustainable development promotion.
In the utility model discloses in, generally, the extraction thing in oil field is the heterogeneous thing of oil gas water, and the in-process can be accompanied with a lot of derivatives, and hydrogen sulfide, carbon dioxide etc. still are accompanied with some deposits as one of the companion thing or the component of oil gas exploitation, corrosion problems such as pitting appear in making oil pipe, consequently, the interior anticorrosive problem also should be regarded as important. Therefore the utility model discloses a be provided with the epoxy layer on steel is moulded composite body pipe layer inner wall as interior anticorrosive coating, can avoid the pipeline difficult quilt to corrode. When the anti-corrosion protective layer is used, the inner anti-corrosion protective layer needs to be polished smoothly, and the flow rate of produced materials can be reduced.
The utility model discloses in, compound main part pipe layer is moulded to steel includes compound base member skeleton of thermoplasticity and rigidity cladding structure. The rigid coating structure is a steel wire or a steel sheet with holes wound and coated on the thermoplastic composite matrix framework. The utility model discloses in, through using thermoplastic composite as the base member inlayer, the steel-plastic composite main part pipe layer that the mode that twines steel wire or poroid steel sheet between through skeleton or layer constitutes has and lays characteristics such as fast, corrosion-resistant, long service life.
The utility model discloses in, the structure supporting layer is including supporting main part, rampart arch and recess. The supporting main body is an aluminum-silicon ceramsite ring pipe added with manganese ore powder and calcium carbonate, and a ring wall bulge on the outer wall of the supporting main body is a triangle-like boss. The groove on the inner wall of the supporting main body is a V-shaped groove. A plurality of axial inner side cavities which are not communicated are arranged between the inner wall of the structure supporting layer and the outer wall of the steel-plastic composite main body pipe layer, and a plurality of axial outer side cavities which are not communicated are arranged between the outer wall of the structure supporting layer and the inner wall of the cement pipe layer (or the heat insulation layer). A cavity structure is formed between the bulges and the grooves and between other layer structures, so that the temperature in the pipe can be maintained, and a heat insulation effect is achieved; the material usage can be reduced, the cost is reduced, the convex structure is designed to be a triangle-like boss, the effect of stable structure is achieved, and the compression resistance, the tensile resistance and the impact resistance are good; can effectively reduce noise and is beneficial to protecting marine ecological environment.
In the utility model, the heat insulation layer is made of polyurethane heat insulation pipes, and has the characteristics of low price, stable temperature difference, high structural strength and the like; the waterproof layer is made of high-density polyethylene, has the characteristics of high viscosity, good waterproofness, high strength, low price and the like, is tightly attached to the polyurethane thermal insulation pipe, and is favorable for reducing the thickness of the pipeline. The composite layer of modified carbon fiber and epoxy resin (for example, the composite layer of modified carbon fiber and epoxy resin is from Citadel Technologies of America) is adopted by the outer wear-resistant protective layer, and has excellent low-temperature resistance and explosion resistance.
Compared with the prior art, the utility model discloses a beneficial technological effect as follows:
1: the pipeline with the multi-composite-layer structure of the utility model adopts the steel framework reinforced composite material to form the steel-plastic composite main body pipe layer, so that the pipeline has the characteristics of quick laying, corrosion resistance, long service life and the like; and magnesium phosphate cement is also adopted as a cement layer, so that the pipeline has the advantages of low permeability, impact resistance, fire resistance, low crack, scraping resistance and the like.
2: the structure supporting layer of the utility model forms a cavity structure between the bulge and the groove and other layer structures, which is beneficial to maintaining the temperature in the pipe and plays a role in heat insulation; the material usage can be reduced, the cost is reduced, the protruding structure is designed to be a triangle-like boss, the effect of stable structure is achieved, and the compression resistance, the tensile resistance and the impact resistance are better; can effectively reduce noise and is beneficial to protecting marine ecological environment.
3: the utility model discloses a many composite bed structure's pipeline still possesses anti chloridion, anti hydrogen sulfide erosion, and structural strength is high, and anti temperature difference ability is high, and long service life and durability are good, and characteristics such as the operation is stable and safe can be applicable to ocean high salt, high pressure, the difference in temperature environment such as big.
Drawings
Fig. 1 is a schematic view of a four-layer structure with an inner anticorrosion protective layer.
Fig. 2 is a schematic view of a four-layer structure with an outer wear-resistant protective layer according to the present invention.
Fig. 3 is a schematic diagram of a five-layer structure when the utility model has an inner anti-corrosion protective layer and an outer wear-resistant protective layer.
Fig. 4 is a schematic view of a six-layer structure when the thermal insulation layer is provided.
Fig. 5 is a schematic diagram of the seven-layer structure of the present invention with a waterproof layer.
Fig. 6 is a plan view of the seven-layer structure of the present invention.
Fig. 7 is a schematic structural view of the steel-plastic composite main body pipe layer of the present invention.
Fig. 8 is a schematic structural diagram of the structural support layer of the present invention.
Fig. 9 is a schematic structural diagram of the cement pipe layer of the present invention.
Reference numerals: 1: a steel-plastic composite main body pipe layer; 101: a thermoplastic composite matrix skeleton; 102: a rigid cladding structure; 2: a structural support layer; 201: a support body; 202: the annular wall is convex; 203: a groove; 3: a cement pipe layer; 301: a mixing body; 302: a rigid fiber; 4: an inner corrosion protection layer; 5: an outer wear resistant protective layer; 6: a thermal insulation layer; 7: and a waterproof layer.
Detailed Description
The technical solution of the present invention is illustrated below, and the claimed invention includes but is not limited to the following embodiments.
A pipeline with a multi-composite-layer structure comprises a steel-plastic composite main pipe layer 1, a structure supporting layer 2 and a cement pipe layer 3. The structure supporting layer 2 is arranged between the outer wall of the steel-plastic composite main body pipe layer 1 and the inner wall of the cement pipe layer 3. A plurality of axial inner side cavities which are not communicated are arranged between the inner wall of the structure supporting layer 2 and the outer wall of the steel-plastic composite main body pipe layer 1, and a plurality of axial outer side cavities which are not communicated are arranged between the outer wall of the structure supporting layer 2 and the inner wall of the cement pipe layer 3. And a protective layer is also arranged on the inner wall of the steel-plastic composite main body pipe layer 1 and/or the outer wall of the cement pipe layer 3.
As preferred, this pipeline is the four-layer structure, including by interior to outer compound main part pipe layer 1, structure supporting layer 2 and the cement pipe layer 3 of steel-plastic that cup joints in proper order to and set up interior anticorrosive protection layer 4 on compound main part pipe layer 1 inner wall is moulded to steel. The inner anticorrosion protection layer 4 is an epoxy resin layer.
As preferred, this pipeline is the four-layer structure, including by interior to outer compound main part pipe layer 1, structure supporting layer 2 and the cement pipe layer 3 of steel-plastic that cup joints in proper order to and set up outer wear-resisting protective layer 5 on the cement pipe layer 3 outer wall. The outer wear-resistant protective layer 5 is a carbon fiber-epoxy resin composite layer.
As preferred, this pipeline is five layer structure, include by interior and outer compound main part pipe layer 1 is moulded to steel that cup joints in proper order, structure supporting layer 2 and cement pipe layer 3 to and set up interior anticorrosive protection layer 4 on compound main part pipe layer 1 inner wall is moulded to steel and set up outer wear-resisting protection layer 5 on 3 outer walls on cement pipe layer. The inner anticorrosion protection layer 4 is an epoxy resin layer. The outer wear-resistant protective layer 5 is a carbon fiber-epoxy resin composite layer.
As preferred, this pipeline is six layer construction, including by interior to outer interior anticorrosive protection layer 4 that cup joints in proper order, steel-plastic composite main body pipe layer 1, structure supporting layer 2, cement pipe layer 3 and outer wear-resisting protective layer 5 to and set up insulating layer 6 between structure supporting layer 2 and cement pipe layer 3. The heat insulation layer 6 is a polyurethane layer. The axially outer chamber is located between the outer wall of the structural support layer 2 and the inner wall of the insulation layer 6.
As preferred, this pipeline is seven layer structures, including by interior to outer interior anticorrosive protection layer 4 that cup joints in proper order, steel-plastic composite main body pipe layer 1, structure supporting layer 2, insulating layer 6, cement pipe layer 3 and outer wear-resisting protective layer 5 to and set up waterproof layer 7 between insulating layer 6 and cement pipe layer 3. The waterproof layer 7 is a polyethylene layer.
Preferably, the steel-plastic composite main tube layer 1 comprises a thermoplastic composite matrix framework 101 and a rigid cladding structure 102. The rigid cladding structure 102 is a steel wire or a steel sheet with holes wound and clad on the thermoplastic composite matrix framework 101.
Preferably, the cement pipe layer 3 comprises a mixing body 301 formed by jointly using fly ash and magnesium phosphate cement, and rigid fibers 302 embedded in the mixing body 301. Preferably, the rigid fibers 302 are steel fibers.
Preferably, the structural support layer 2 comprises a support body 201, a ring wall protrusion 202 and a groove 203. The support main body 201 is an aluminum-silicon ceramsite ring pipe. A plurality of annular wall protrusions 202 are uniformly arranged on the outer pipe wall of the support main body 201, and a plurality of grooves 203 are uniformly arranged on the inner pipe wall of the support main body 201.
Preferably, the annular wall protrusion 202 is a triangle-like boss. The groove 203 is a V-shaped groove. Along the circumferential direction of the supporting body 201, a groove 203 is formed on the inner wall of the supporting body 201 corresponding to each annular wall protrusion 202.
Example 1
As shown in fig. 1 to 9, the pipeline with the multi-composite layer structure comprises a steel-plastic composite main pipe layer 1, a structural support layer 2 and a cement pipe layer 3. The structure supporting layer 2 is arranged between the outer wall of the steel-plastic composite main body pipe layer 1 and the inner wall of the cement pipe layer 3. A plurality of axial inner side cavities which are not communicated are arranged between the inner wall of the structure supporting layer 2 and the outer wall of the steel-plastic composite main body pipe layer 1, and a plurality of axial outer side cavities which are not communicated are arranged between the outer wall of the structure supporting layer 2 and the inner wall of the cement pipe layer 3. And a protective layer is also arranged on the inner wall of the steel-plastic composite main body pipe layer 1 and/or the outer wall of the cement pipe layer 3.
Example 2
Example 3
Example 4
Example 5
Example 6
Example 1 is repeated, as shown in fig. 5 to 6, except that the pipeline has a seven-layer structure, and includes an inner anti-corrosion protective layer 4, a steel-plastic composite main body pipe layer 1, a structure supporting layer 2, a heat insulating layer 6, a cement pipe layer 3, an outer wear-resistant protective layer 5, and a waterproof layer 7 disposed between the heat insulating layer 6 and the cement pipe layer 3, which are sequentially sleeved from inside to outside. The waterproof layer 7 is a polyethylene layer.
Example 7
Example 6 is repeated, as shown in fig. 7, except that the steel-plastic composite main tube layer 1 comprises a thermoplastic composite matrix skeleton 101 and a rigid cladding structure 102. The rigid cladding structure 102 is a perforated steel sheet wound and clad on the thermoplastic composite matrix skeleton 101.
Example 8
Example 7 is repeated except that the rigid cladding structure 102 is a steel wire wound around and clad on the thermoplastic composite matrix skeleton 101.
Example 9
Example 8 was repeated, as shown in fig. 9, except that the cement pipe layer 3 included a mixing body 301 composed of both fly ash and magnesium phosphate cement, and rigid fibers 302 embedded inside the mixing body 301.
Example 10
Example 9 is repeated except that the rigid fibers 302 are steel fibers.
Example 11
Example 10 is repeated, as shown in fig. 8, except that the structural support layer 2 comprises a support body 201, a surround projection 202 and a recess 203. The support main body 201 is an aluminum-silicon ceramsite ring pipe. A plurality of annular wall protrusions 202 are uniformly arranged on the outer pipe wall of the support main body 201, and a plurality of grooves 203 are uniformly arranged on the inner pipe wall of the support main body 201.
Example 12
Example 11 is repeated except that the annular wall projection 202 is a triangular-like projection. The groove 203 is a V-shaped groove. Along the circumferential direction of the supporting body 201, a groove 203 is formed on the inner wall of the supporting body 201 corresponding to each annular wall protrusion 202.
Claims (10)
1. A multi-composite layered structural pipe, characterized by: the pipeline comprises a steel-plastic composite main pipe layer (1), a structure supporting layer (2) and a cement pipe layer (3); the structural support layer (2) is arranged between the outer wall of the steel-plastic composite main body pipe layer (1) and the inner wall of the cement pipe layer (3); a plurality of non-communicated axial inner side chambers are arranged between the inner wall of the structure supporting layer (2) and the outer wall of the steel-plastic composite main body pipe layer (1), and a plurality of non-communicated axial outer side chambers are arranged between the outer wall of the structure supporting layer (2) and the inner wall of the cement pipe layer (3); and a protective layer is also arranged on the inner wall of the steel-plastic composite main body pipe layer (1) and/or the outer wall of the cement pipe layer (3).
2. The duct of claim 1, wherein: the pipeline is of a four-layer structure and comprises a steel-plastic composite main body pipe layer (1), a structure supporting layer (2), a cement pipe layer (3) and an inner anti-corrosion protective layer (4) arranged on the inner wall of the steel-plastic composite main body pipe layer (1), wherein the steel-plastic composite main body pipe layer (1), the structure supporting layer and the cement pipe layer are sequentially sleeved from inside to outside; the inner anti-corrosion protection layer (4) is an epoxy resin layer.
3. The duct of claim 1, wherein: the pipeline is of a four-layer structure and comprises a steel-plastic composite main body pipe layer (1), a structure supporting layer (2), a cement pipe layer (3) and an outer wear-resistant protective layer (5) arranged on the outer wall of the cement pipe layer (3), wherein the steel-plastic composite main body pipe layer, the structure supporting layer and the cement pipe layer are sequentially sleeved from inside to outside; the outer wear-resistant protective layer (5) is a carbon fiber-epoxy resin composite layer.
4. The duct of claim 1, wherein: the pipeline is of a five-layer structure and comprises a steel-plastic composite main body pipe layer (1), a structure supporting layer (2) and a cement pipe layer (3) which are sequentially sleeved from inside to outside, an inner anti-corrosion protective layer (4) arranged on the inner wall of the steel-plastic composite main body pipe layer (1) and an outer wear-resistant protective layer (5) arranged on the outer wall of the cement pipe layer (3); the inner anti-corrosion protective layer (4) is an epoxy resin layer; the outer wear-resistant protective layer (5) is a carbon fiber-epoxy resin composite layer.
5. The duct of claim 4, wherein: the pipeline is of a six-layer structure and comprises an inner anti-corrosion protective layer (4), a steel-plastic composite main body pipe layer (1), a structure supporting layer (2), a cement pipe layer (3) and an outer wear-resistant protective layer (5) which are sequentially sleeved from inside to outside, and a heat insulation layer (6) arranged between the structure supporting layer (2) and the cement pipe layer (3); the heat insulation layer (6) is a polyurethane layer; the axially outer chamber is located between the outer wall of the structural support layer (2) and the inner wall of the thermal insulation layer (6).
6. The duct of claim 5, wherein: the pipeline is of a seven-layer structure and comprises an inner anti-corrosion protective layer (4), a steel-plastic composite main pipe layer (1), a structure supporting layer (2), a heat insulation layer (6), a cement pipe layer (3), an outer wear-resistant protective layer (5) and a waterproof layer (7) arranged between the heat insulation layer (6) and the cement pipe layer (3), wherein the inner anti-corrosion protective layer, the steel-plastic composite main pipe layer (1), the structure supporting layer (2), the heat insulation layer (6), the cement pipe layer (3) and the outer wear-resistant protective layer are sequentially sleeved from inside to outside; the waterproof layer (7) is a polyethylene layer.
7. The conduit according to any one of claims 1 to 6, wherein: the steel-plastic composite main body pipe layer (1) comprises a thermoplastic composite matrix framework (101) and a rigid coating structure (102); the rigid cladding structure (102) is a steel wire or a steel sheet with holes wound and clad on the thermoplastic composite matrix framework (101).
8. The conduit according to any one of claims 1 to 6, wherein: the cement pipe layer (3) comprises a mixed main body (301) formed by coal ash and magnesium phosphate cement, and rigid fibers (302) embedded in the mixed main body (301); the rigid fibers (302) are steel fibers.
9. The conduit according to any one of claims 1 to 6, wherein: the structural support layer (2) comprises a support body (201), a ring wall protrusion (202) and a groove (203); the support main body (201) is an aluminum-silicon ceramsite ring pipe; a plurality of annular wall bulges (202) are uniformly arranged on the outer pipe wall of the supporting main body (201), and a plurality of grooves (203) are uniformly arranged on the inner pipe wall of the supporting main body (201).
10. The duct of claim 9, wherein: the annular wall bulge (202) is a triangle-like boss; the groove (203) is a V-shaped groove; along the ring direction of the supporting main body (201), a groove (203) is formed on the inner wall of the supporting main body (201) corresponding to each ring wall protrusion (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222963083.7U CN218378062U (en) | 2022-11-08 | 2022-11-08 | Pipeline with multi-composite-layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222963083.7U CN218378062U (en) | 2022-11-08 | 2022-11-08 | Pipeline with multi-composite-layer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218378062U true CN218378062U (en) | 2023-01-24 |
Family
ID=84938576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222963083.7U Active CN218378062U (en) | 2022-11-08 | 2022-11-08 | Pipeline with multi-composite-layer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218378062U (en) |
-
2022
- 2022-11-08 CN CN202222963083.7U patent/CN218378062U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201096353Y (en) | Chimney inner wall composite anti-corrosive structure | |
| CN210564554U (en) | Novel shield constructs section of jurisdiction | |
| CN111188632A (en) | Sea area corrosive environment high performance durability shield constructs section of jurisdiction lining structure | |
| CN218378062U (en) | Pipeline with multi-composite-layer structure | |
| CN211819416U (en) | Sea area corrosive environment high performance durability shield constructs section of jurisdiction lining structure | |
| CN202708352U (en) | PE160-rank fiber-reinforced polyethylene tube stock | |
| CN105179817A (en) | Long-service-life full-anti-corrosion lining type prestress steel cylinder concrete pipe | |
| CN210600684U (en) | Steel pipe with good corrosion prevention effect | |
| CN211203163U (en) | Ceramic lining composite steel pipe with corrosion resistance | |
| CN209960024U (en) | Seawater corrosion resistant pipe-based integrated reinforced concrete special-shaped composite pipe | |
| CN211344301U (en) | Tensile wear-resistant stainless steel pipe | |
| CN219453138U (en) | High-strength corrugated pipe | |
| CN208138619U (en) | Seamless pipe liner two-phase stainless steel composite steel pipe | |
| CN214997684U (en) | Shield constructs enhancement mosaic structure of section of jurisdiction under closely passing through railway condition | |
| CN106287008A (en) | A kind of long-effective corrosion etching method of embed-type Prestressed concrete cylinder pipe | |
| CN111006078A (en) | Novel steel cylinder concrete pipe | |
| CN215371366U (en) | Steel wire framework fire-resistant composite pipe | |
| CN215981450U (en) | Compound high strength fire hose | |
| CN216813187U (en) | Gas wall pipe cladding anticorrosive device | |
| CN201620424U (en) | Combined inspection well | |
| CN206608186U (en) | A kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt | |
| CN105135082A (en) | Long-life and full-corrosion-prevention embedded type prestressed steel barrel concrete pipe for direct drinking water | |
| CN216158558U (en) | Chloroprene rubber plate lining corrosion-resistant reinforced pipeline | |
| CN221121281U (en) | High-strength corrosion-resistant pipeline forging | |
| CN221683850U (en) | Large-caliber fiber reinforced steel cylinder concrete composite pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |