CN216643330U - Pressure pipe formed by winding thermoplastic composite structure - Google Patents
Pressure pipe formed by winding thermoplastic composite structure Download PDFInfo
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- CN216643330U CN216643330U CN202123149523.7U CN202123149523U CN216643330U CN 216643330 U CN216643330 U CN 216643330U CN 202123149523 U CN202123149523 U CN 202123149523U CN 216643330 U CN216643330 U CN 216643330U
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- composite structure
- thermoplastic composite
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- pressure pipe
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Abstract
The utility model discloses a pressure pipe formed by winding a thermoplastic composite structure, which comprises the following specific steps: the continuous fiber prepreg tape and the thermoplastic plastic structure are compounded and molded in one step from an extrusion die to form a thermoplastic composite structure; the thermoplastic composite structure body is spirally wound, lapped and welded at a fixed angle alpha to form a pressure pipe; overlapping repeated areas with fixed width between each layer of thermoplastic composite structure body; and reinforcing ribs are arranged between the continuous fiber prepreg tapes and the thermoplastic plastic structural body. The utility model has reasonable structural design, convenient and quick manufacture, high practicability and is suitable for popularization and use; the pipe material has high rigidity and high flexibility, can bear external pressure load, and is a high-rigidity, tensile and compressive composite pipe. The key is to save material.
Description
Technical Field
The utility model belongs to the field of plastic pipeline manufacturing, and particularly relates to a pressure pipe formed by winding a thermoplastic composite structure.
Background
As a novel composite pipeline, the Continuous Fiber Reinforced (CFRT) plastic pipe has a series of unique advantages of light weight, high strength, low cost, corrosion resistance, environmental protection and the like, has huge application prospects in the fields of municipal administration, water conservancy, coal, chemistry, oil gas and the like, and is widely concerned by the pipeline industry, so that the continuous glass fiber reinforced polyethylene pipe composite material and the process research thereof are very rapidly developed in recent years.
Pipeline enterprises at home and abroad deeply research the continuous fiber reinforced pipe composite material and the process thereof and obtain some achievements, for example, the JEC American innovation prize is obtained in 2012 for the continuous fiber reinforced thermoplastic reinforced composite pipe successfully developed by the Netherlands Airbone company. The U.S. enterprise Composite Fluid Transfer LLC developed a successful continuous fiber reinforced polyethylene pipe awarded 2013JEC U.S. innovation.
Domestic enterprises such as chenguang, weixing, henning and the like are also actively developing fiber reinforced composite pipes and the like. However, most of the products are concentrated in the market fields of small-caliber (less than 200 mm) pipelines or low-pressure drainage pipelines, the development field of large-caliber pipelines has the defects of high product cost, low production efficiency, low market competitiveness and the like, large-scale popularization and application in the market of the large-caliber pipelines cannot be realized, and the fiber reinforced large-caliber thermoplastic pipelines are in the development stage at home and abroad.
SUMMERY OF THE UTILITY MODEL
To overcome the deficiencies of the prior art, the present invention provides a pressure tube wound from a thermoplastic composite structure.
The utility model relates to a pressure pipe formed by winding a thermoplastic composite structure, which specifically comprises the following steps: and the continuous fiber prepreg tape and the thermoplastic plastic structural body are subjected to composite forming from an extrusion die at one time to form the thermoplastic composite structural body. The thermoplastic composite structural body is spirally wound, overlapped and welded into a pressure pipe at a fixed angle alpha; each layer of thermoplastic composite structure overlaps a repeating region of fixed width. Reinforcing ribs are arranged between the continuous fiber prepreg tape and the thermoplastic plastic structure.
Furthermore, the fixed angle alpha of the thermoplastic composite structure body winding is 70-89 degrees.
Furthermore, the reinforcing ribs are provided with a plurality of holes.
Furthermore, the caliber of the pressure pipe is 600 mm-4000 mm.
Further, the width of the repeating region is 15mm to 30 mm.
Further, thermoplastic structures include rectangular, trapezoidal, triangular, U-shaped, and circular.
Further, the continuous fiber prepreg tape and the thermoplastic plastic structural body are made of PP, PE, PERT or other thermoplastics.
The beneficial technical effects of the utility model are as follows:
the utility model has reasonable structural design, convenient and quick manufacture, high practicability and is suitable for popularization and use; the pipe material has high rigidity and high flexibility, can bear external pressure load, and is a high-rigidity, tensile and compressive composite pipe. The key is to save materials.
Drawings
FIG. 1 is a schematic view of the spiral winding of the present invention.
FIG. 2 is a cross-sectional structure of a thermoplastic composite structure according to the present invention.
In the figure: 1-a thermoplastic composite structure; 2-a thermoplastic structure; 3-continuous fiber prepreg tape; 4-reinforcing ribs; 5-repeat region; 6-porous.
Detailed Description
The utility model is described in further detail below with reference to the figures and the detailed description.
The utility model relates to a pressure pipe formed by winding a thermoplastic composite structure, which has a specific structure shown in figure 1, wherein a thermoplastic composite structure body 1 is spirally wound, overlapped and welded into the pressure pipe at a fixed angle alpha, and the fixed angle alpha of the winding of the thermoplastic composite structure body 1 takes a value of 70-89 degrees. The repeated area 5 with fixed width is overlapped between each layer of thermoplastic composite structure 1, and the width of the repeated area 5 is 15 mm-30 mm.
As shown in fig. 2, the thermoplastic composite structure 1 is formed by compounding a continuous fiber prepreg tape 3 and a thermoplastic plastic structure 2 at a time from an extrusion die, and reinforcing ribs 4 are provided between the continuous fiber prepreg tape 3 and the thermoplastic plastic structure 2, and the reinforcing ribs 4 are provided with a plurality of holes 6. The selected thermoplastic plastic structural body 2 can be rectangular, trapezoidal, triangular, U-shaped or circular, and the continuous fiber prepreg tape 3 and the thermoplastic plastic structural body 2 are made of PP, PE, PERT or other thermoplastics.
The utility model is a high-rigidity, tensile and compressive composite pipe body which is formed by continuously winding thermoplastic composite structural bodies 1 with different shapes and formed by a continuous fiber prepreg tape 3 and a thermoplastic plastic structural body 2. The continuous fiber prepreg tape 3 independently bears the comprehensive stress of the axial tension and the circumferential pressure of the pressure pipe.
Hoop load (stress): the hoop stress formed by the internal pressure is borne by the spirally wound continuous fiber belt layer, and the safety factor 3 is designed.
Axial load (stress): axial stress due to uneven sagging or the like is borne by the continuous fiber prepreg tape layer during manufacturing and transportation and after burying.
The experiment shows that the high pressure of the pipeline system is 0.4MPa to 1.6MPa, and the requirement of the large diameter of more than 600mm to 4000mm on the comprehensive mechanics of axial tension and annular pressure is met.
Claims (7)
1. A pressure pipe formed by winding a thermoplastic composite structure is characterized in that a continuous fiber prepreg tape (3) and a thermoplastic plastic structural body (2) are subjected to composite forming from an extrusion die at one time to form a thermoplastic composite structural body (1); the thermoplastic composite structural body (1) is spirally wound, lapped and welded into a pressure pipe at a fixed angle alpha; overlapping repeated areas (5) with fixed width between each layer of thermoplastic composite structure body (1);
and reinforcing ribs (4) are arranged between the continuous fiber prepreg tape (3) and the thermoplastic plastic structural body (2).
2. A pressure pipe wound with a thermoplastic composite structure according to claim 1, wherein the fixed angle α of the winding of the thermoplastic composite structure (1) is 70 ° to 89 °.
3. A pressure pipe wound with a thermoplastic composite structure according to claim 1, characterized in that the reinforcement ribs (4) are provided with a plurality of holes (6).
4. A pressure tube wound with a thermoplastic composite structure as in claim 1, wherein the diameter of the pressure tube is 600mm to 4000 mm.
5. A pressure tube wound with a thermoplastic composite structure as claimed in claim 1, characterized in that the width of the repeating area (5) is 15mm to 30 mm.
6. A pressure pipe wound with a thermoplastic composite structure, according to claim 1, characterized in that the thermoplastic plastic structure (2) comprises rectangular, trapezoidal, triangular, U-shaped and circular shapes.
7. A pressure pipe wound with a thermoplastic composite structure according to claim 1, characterized in that the continuous fiber prepreg tape (3) and the thermoplastic plastic structure (2) are made of PP, PE or PERT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123149523.7U CN216643330U (en) | 2021-12-15 | 2021-12-15 | Pressure pipe formed by winding thermoplastic composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123149523.7U CN216643330U (en) | 2021-12-15 | 2021-12-15 | Pressure pipe formed by winding thermoplastic composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216643330U true CN216643330U (en) | 2022-05-31 |
Family
ID=81742497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123149523.7U Active CN216643330U (en) | 2021-12-15 | 2021-12-15 | Pressure pipe formed by winding thermoplastic composite structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216643330U (en) |
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2021
- 2021-12-15 CN CN202123149523.7U patent/CN216643330U/en active Active
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