CN211901869U - Directional crossing pipeline structure with protective layer - Google Patents
Directional crossing pipeline structure with protective layer Download PDFInfo
- Publication number
- CN211901869U CN211901869U CN201922205853.XU CN201922205853U CN211901869U CN 211901869 U CN211901869 U CN 211901869U CN 201922205853 U CN201922205853 U CN 201922205853U CN 211901869 U CN211901869 U CN 211901869U
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- protective layer
- layer
- pipeline structure
- steel pipe
- directional
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- 239000011241 protective layer Substances 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 abstract description 15
- 239000011248 coating agent Substances 0.000 abstract description 13
- 230000001681 protective effect Effects 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000011152 fibreglass Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000016 photochemical curing Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Abstract
The utility model discloses a directional pipeline structure that passes through with inoxidizing coating. The steel pipe comprises a steel pipe, an anticorrosive layer arranged outside the steel pipe and a protective layer arranged outside the anticorrosive layer; the method is characterized in that: the protective layer is a concrete protective layer with a built-in steel wire mesh. The protective layer of the pipeline structure has a simple structure, and the used raw materials are environment-friendly and convenient to obtain in large quantities; the protective layer has higher strength characteristic and can provide superior protective performance for the pipeline.
Description
Technical Field
The utility model relates to a pipeline structure, concretely relates to directional pipeline structure that passes through with inoxidizing coating.
Background
The horizontal directional traversing (HDD) technology has the characteristics of small influence on the environment, short construction period and the like, is a non-excavation buried pipeline laying technology, is suitable for laying buried pipelines in areas such as roads, rivers, bridges, railways and the like, and is widely applied to pipeline traversing construction.
Due to the construction process characteristics of horizontal directional crossing, the geological conditions of a crossing region and the limitation of construction technology, the coating leakage points such as scratch and damage of the pipeline anticorrosive coating are easily caused in the crossing process, the anticorrosive effect of the coating is ineffective, and even the steel pipe body can be damaged.
According to the technical specification of Q/SY 1477-. When traversing hard rock and the like or other formations with poor geological conditions, two measures are preferably taken: one is to increase the thickness of one or more materials in the corrosion protection system and the other is to increase the protection layer. The regulations and protective layers commonly used today are: epoxy wear-resistant coating, epoxy glass fiber reinforced plastic or photocuring protective sleeve.
In order to prevent the steel pipe or the anticorrosive layer from being scratched or damaged and prevent the steel pipe from being damaged or the anticorrosive layer from losing efficacy in the process of directional crossing of the pipeline, a protective layer is required to be applied outside the anticorrosive layer as a protective measure, and the protective layer is required to have the characteristics of scratch resistance, wear resistance, high hardness and the like.
The pipe protective layer is coated with an epoxy abrasion resistant coating, epoxy glass reinforced plastic or a light-cured protective sleeve, usually by spraying or winding. For the existing epoxy wear-resistant coating, the application of the Parot coating is wider, the application of other wear-resistant coatings is less, and the selection range is narrower; the epoxy glass fiber reinforced plastic coating is repeatedly coated with the glass fiber reinforced plastic coating and wound with glass fiber cloth for multiple times to reach the required thickness, the construction process is complicated, and the efficiency is low; the construction of the photocuring protective sleeve needs natural light or special ultraviolet light for illumination curing, large equipment investment is needed for realizing the curing of the whole pipe body with a large pipe diameter, and the photocuring material has the highest manufacturing cost among the types.
Both the glass fiber reinforced plastic coating and the epoxy wear-resistant coating are liquid coatings, volatile harmful substances are easily generated in the construction process, and the construction selection is more and more difficult under the large background that the environment protection form requirement is more and more strict.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a directional crossing pipeline structure with a protective layer, which mainly solves the technical problems existing in the prior art, the protective layer of the pipeline structure has simple structure, and the used raw materials are environment-friendly and convenient to obtain; the protective layer has higher strength characteristic and can provide superior protective performance for the pipeline.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a directional crossing pipeline structure with a protective layer comprises a steel pipe, an anticorrosive layer arranged outside the steel pipe and the protective layer arranged outside the anticorrosive layer; the method is characterized in that: the protective layer is a concrete protective layer with a built-in steel wire mesh.
The directional crossing pipeline structure with the protective layer is characterized in that: the thickness of the protective layer is 25-40 mm.
The directional crossing pipeline structure with the protective layer is characterized in that: the diameter of the steel wire mesh is not less than 2 mm.
The utility model has the advantages of as follows:
the protective layer of the utility model has simple structure, and the raw materials used by the protective layer are environment-friendly and convenient to obtain; because of the higher strength characteristic of concrete, the concrete can provide superior protective performance for passing through pipelines.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Referring to fig. 1, it discloses a directional crossing pipeline structure with a protective layer, which comprises a steel pipe 1, an anticorrosive layer 2 arranged outside the steel pipe 1, and a protective layer 3 arranged outside the anticorrosive layer 2; the protective layer 3 is a concrete protective layer with a built-in steel mesh 31.
In the utility model, the thickness of the protective layer 3 is 25-40 mm. The wire diameter of the wire mesh 31 is not less than 2 mm.
The concrete is prepared from cement, aggregate (broken stone and/or river sand) and water, wherein the cement: aggregate: the weight ratio of water is about 20: 75: and 5, fully stirring to form concrete.
When the anti-corrosion concrete is manufactured, the steel wire mesh 3 with the diameter not smaller than 2mm is used as a reinforcing material and is pre-placed on the surface of the anti-corrosion layer 2 or is synchronously placed in the concrete application process. The concrete may be applied to the surface of the corrosion protection layer 2 by spraying, extruding or reverse-molding. The basic performance parameters of the protective layer 3 thus formed are: the thickness is 25-40mm, the surface is uniform without convex and concave, the compressive strength of 7 days can reach 30MPa, and the bending of each pipe diameter of at least 1.5 degrees can be borne.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (3)
1. A directional crossing pipeline structure with a protective layer comprises a steel pipe (1), an anticorrosive layer (2) arranged outside the steel pipe (1), and the protective layer (3) arranged outside the anticorrosive layer (2); the method is characterized in that: the protective layer (3) is a concrete protective layer with a built-in steel wire mesh (31).
2. A directional crossing pipe structure having an armor layer according to claim 1, wherein: the thickness of the protective layer (3) is 25-40 mm.
3. A directional crossing pipe structure with an armor layer according to claim 1 or 2, wherein: the diameter of the steel wire mesh (31) is not less than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922205853.XU CN211901869U (en) | 2019-12-11 | 2019-12-11 | Directional crossing pipeline structure with protective layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922205853.XU CN211901869U (en) | 2019-12-11 | 2019-12-11 | Directional crossing pipeline structure with protective layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901869U true CN211901869U (en) | 2020-11-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922205853.XU Active CN211901869U (en) | 2019-12-11 | 2019-12-11 | Directional crossing pipeline structure with protective layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211901869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878460A (en) * | 2021-03-26 | 2021-06-01 | 中铁二十三局集团第四工程有限公司 | Construction method for steel pipe built in reinforced concrete sleeve |
-
2019
- 2019-12-11 CN CN201922205853.XU patent/CN211901869U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878460A (en) * | 2021-03-26 | 2021-06-01 | 中铁二十三局集团第四工程有限公司 | Construction method for steel pipe built in reinforced concrete sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Directional Crossing Pipeline Structure with Protective Layer Effective date of registration: 20221125 Granted publication date: 20201110 Pledgee: Baoshan sub branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: HILONG PIPELINE ENGINEERING TECHNOLOGY SERVICE Co.,Ltd. Registration number: Y2022310000345 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231013 Granted publication date: 20201110 Pledgee: Baoshan sub branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: HILONG PIPELINE ENGINEERING TECHNOLOGY SERVICE Co.,Ltd. Registration number: Y2022310000345 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |