CN220816834U - Weather-resistant steel prestressed steel cylinder concrete pipe - Google Patents
Weather-resistant steel prestressed steel cylinder concrete pipe Download PDFInfo
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- CN220816834U CN220816834U CN202322253519.8U CN202322253519U CN220816834U CN 220816834 U CN220816834 U CN 220816834U CN 202322253519 U CN202322253519 U CN 202322253519U CN 220816834 U CN220816834 U CN 220816834U
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- steel wire
- prestressed
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 100
- 239000010959 steel Substances 0.000 title claims abstract description 100
- 239000004567 concrete Substances 0.000 title claims abstract description 30
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 43
- 229910000870 Weathering steel Inorganic materials 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 abstract description 10
- 238000004804 winding Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 45
- 230000007797 corrosion Effects 0.000 description 7
- 239000011241 protective layer Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011372 high-strength concrete Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The application relates to an improved prestressed steel cylinder concrete pipe, in particular to a weather-resistant steel prestressed steel cylinder concrete pipe; the concrete layer, the steel cylinder, the prestressed steel wire, the inner mortar protection layer, the weather-resistant steel wire and the outer mortar protection layer are included; the inner ring of the steel cylinder is provided with a concrete layer, and two ends of the concrete layer are respectively connected to the bell and spigot ends of the steel cylinder; the outer wall of the steel cylinder is wound with a prestressed steel wire, and an inner mortar protection layer which covers the prestressed steel wire is arranged on the outer side of the steel cylinder. By implementing the technical scheme, under the condition of not changing the basic structure of the pipe and not changing the main production process, the double-layer wound pipe structure is designed, the inner layer adopts the traditional high-strength prestressed steel wire, and the outer layer adopts the weather-resistant steel wire winding, so that the performance requirement of the pipe on the working pressure covering soil can be ensured, and meanwhile, the weather-resistant steel material still has good self-corrosion resistance and the good service life of the pipe can be ensured when the mortar layer has a problem.
Description
Technical Field
The application relates to an improved prestressed steel cylinder concrete pipe, in particular to a weather-resistant steel prestressed steel cylinder concrete pipe.
Background
The prestressed steel cylinder concrete pipe (PRESTRESSED CONCRETE CYLINDER PIPE, PCCP for short) is a new pipeline material introduced and developed from abroad in the last century in China, and is a water pipe made up by winding circumferential prestressed steel wire around high-strength concrete pipe core with steel cylinder and spraying compact cement mortar protecting layer on it.
The composite pipe with high strength, high impermeability and high sealing performance is produced with thin steel plate, medium steel plate, deformed steel, high strength pre-stressed steel wire, high strength concrete, high strength mortar, rubber sealing ring and other material.
At present, the protection of the prestress steel wire layer of the prestress steel cylinder concrete pipe mainly adopts the protection of a mortar layer, or the mortar protection layer and the external anticorrosive coating are combined for protection, the steel wire has no protection effect, and after the mortar protection layer and the external anticorrosive coating are damaged, the steel wire loses protection, so that a certain quality hidden trouble exists in the pipe, and the pipe is seriously damaged. At present, the problems are frequently encountered in the production of the domestic prestressed steel cylinder concrete pipes.
Disclosure of Invention
The application aims to provide a weather-resistant steel prestressed steel cylinder concrete pipe for solving the problems.
The application is realized in the following way: the weather-resistant steel prestressed steel cylinder concrete pipe comprises a concrete layer, a steel cylinder, a prestressed steel wire, an inner mortar protection layer, a weather-resistant steel wire and an outer mortar protection layer; the inner ring of the steel cylinder is provided with a concrete layer, and two ends of the concrete layer are respectively connected to the bell and spigot ends of the steel cylinder; the outer wall of the steel cylinder is wound with a prestressed steel wire, and the outer side of the steel cylinder is provided with an inner mortar protection layer which covers the prestressed steel wire; the outer wall of the inner mortar protection layer is wound with weather-resistant steel wires, and the outer side of the inner mortar protection layer is provided with an outer mortar protection layer which covers the weather-resistant steel wires.
Further, the direction of the spiral of the prestressed steel wire is the same as that of the weather-resistant steel wire.
Further, the thickness of the outer mortar protection layer is greater than that of the inner mortar protection layer.
By implementing the technical scheme, under the condition of not changing the basic structure of the pipe and not changing the main production process, the double-layer wound pipe structure is designed, the inner layer adopts the traditional high-strength prestressed steel wire, and the outer layer adopts the weather-resistant steel wire winding, so that the performance requirement of the pipe on the working pressure covering soil can be ensured, and meanwhile, the weather-resistant steel material still has good self-corrosion resistance and the good service life of the pipe can be ensured when the mortar layer has a problem.
Drawings
The specific structure of the present application is shown in the following drawings and examples:
FIG. 1 is a schematic diagram of an embodiment of the present application.
Legend: 1. concrete layer, steel cylinder, prestressed steel wire, weather-proof steel wire, inner mortar protecting layer and outer mortar protecting layer.
Description of the embodiments
The present application is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present application.
Example 1 as shown in fig. 1, a weathering steel prestressed steel cylinder concrete pipe includes a concrete layer 1, a steel cylinder 2, a prestressed steel wire 3, an inner mortar protection layer 5, a weathering steel wire 4, and an outer mortar protection layer 6; the inner ring of the steel cylinder 2 is provided with a concrete layer 1, and two ends of the concrete layer 1 are respectively connected to the bell and spigot ends and the socket ends of the steel cylinder 2; the outer wall of the steel cylinder 2 is wound with a prestressed steel wire 3, and an inner mortar protection layer 5 which covers the prestressed steel wire 3 is arranged on the outer side of the steel cylinder 2; the outer wall of the inner mortar protection layer 5 is wound with a weather-resistant steel wire 4, and the outer side of the inner mortar protection layer 5 is provided with an outer mortar protection layer 6 which covers the weather-resistant steel wire 4.
The prestress steel wire 3 is a prestress high-strength steel wire; the weathering steel wire 4 is designed at the maximum value allowed by the regulations in terms of the winding pitch.
The main manufacturing method of the application is as follows:
When the steel cylinder 2 and the concrete layer 1 have conditions, firstly winding the prestressed steel wire 3 to form a first layer of steel wire, and then spraying mortar to form an inner mortar protection layer 5; when the inner mortar protective layer 5 has the condition, starting winding the weather-resistant steel wire 4 as a second layer of steel wire; and then spraying mortar to form an outer mortar protection layer 6.
At this time, even if the outside is not provided with an anti-corrosion coating, the durability, the corrosion resistance and the adaptability to various environmental conditions of the present application are greatly improved.
The application adopts a multi-layer structure, and the prestressed steel wires 3 of the first layer have more functions of bearing internal and external loads; the second layer of weather-resistant steel wires 4 fully plays excellent corrosion-resistant weather resistance except for bearing the load, and even if the outer mortar protective layer 6 or other protective layers have local damage, cracking or other unstructured integral damages, the second layer of weather-resistant steel wires 4 still have excellent independent corrosion resistance, so that the durability of the pipe and the adaptability to various environmental conditions are greatly improved, meanwhile, the number of the used weather-resistant steel materials can be fully reduced due to the arrangement of the maximum screw pitch, the advantages of the weather-resistant steel wires are fully utilized, and the cost is optimized.
The application fully maintains the advantages of low steel consumption and high strength performance, and simultaneously changes the prior art that the corrosion resistance is realized only through the outer protective layer, and the second layer of weather-resistant steel wire 4 and the outer mortar protective layer 6 are added; when the self-independent corrosion resistance is increased, the self-independent corrosion resistance is also good protection performance for the inner mortar protection layer 5, and the self-independent corrosion resistance is a safe and reliable innovation in the manufacturing process of the prestressed steel cylinder 2 concrete pipe.
As shown in fig. 1, the prestressed wire 3 is in the same spiral direction as the weather-resistant wire 4. And the load bearing force is enhanced.
As shown in fig. 1, the thickness of the outer mortar protection layer 6 is greater than the thickness of the inner mortar protection layer 5.
In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used merely to indicate relative positional relationships between the relevant portions, and do not limit the absolute positions of the relevant portions.
The technical characteristics form the optimal embodiment of the application, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the needs of different situations.
Claims (3)
1. A weather-resistant steel prestressed steel cylinder concrete pipe is characterized in that: the concrete layer, the steel cylinder, the prestressed steel wire, the inner mortar protection layer, the weather-resistant steel wire and the outer mortar protection layer are included; the inner ring of the steel cylinder is provided with a concrete layer, and two ends of the concrete layer are respectively connected to the bell and spigot ends of the steel cylinder; the outer wall of the steel cylinder is wound with a prestressed steel wire, and the outer side of the steel cylinder is provided with an inner mortar protection layer which covers the prestressed steel wire; the outer wall of the inner mortar protection layer is wound with weather-resistant steel wires, and the outer side of the inner mortar protection layer is provided with an outer mortar protection layer which covers the weather-resistant steel wires.
2. The weathering steel prestressed steel cylinder concrete pipe of claim 1, wherein: the spiral direction of the prestressed steel wire is the same as that of the weather-resistant steel wire.
3. The weathering steel prestressed steel cylinder concrete pipe of claim 1 or 2, wherein: the thickness of the outer mortar protection layer is greater than that of the inner mortar protection layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322253519.8U CN220816834U (en) | 2023-08-22 | 2023-08-22 | Weather-resistant steel prestressed steel cylinder concrete pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322253519.8U CN220816834U (en) | 2023-08-22 | 2023-08-22 | Weather-resistant steel prestressed steel cylinder concrete pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816834U true CN220816834U (en) | 2024-04-19 |
Family
ID=90702591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322253519.8U Active CN220816834U (en) | 2023-08-22 | 2023-08-22 | Weather-resistant steel prestressed steel cylinder concrete pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816834U (en) |
-
2023
- 2023-08-22 CN CN202322253519.8U patent/CN220816834U/en active Active
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