CN214466707U - Multilayer wear-resistant composite pipeline for conveying power plant slurry - Google Patents
Multilayer wear-resistant composite pipeline for conveying power plant slurry Download PDFInfo
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- CN214466707U CN214466707U CN202023172808.8U CN202023172808U CN214466707U CN 214466707 U CN214466707 U CN 214466707U CN 202023172808 U CN202023172808 U CN 202023172808U CN 214466707 U CN214466707 U CN 214466707U
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Abstract
The utility model discloses a wear-resisting composite pipe of multilayer for carrying power plant's thick liquid, wearing layer, core pipe bearing layer, reinforcing casing ply and outer tube bearing layer including from interior to exterior set gradually, the material of wearing layer is polyolefin elastomer, the material of core pipe bearing layer and outer tube bearing layer is thermoplastic resin or its modified material, the reinforcing casing ply is by the winding the thermoplastic formation in the one-way preimpregnation area of fibre reinforcing on the core pipe bearing layer. The wear-resistant layer is made of thermoplastic elastomer, the wear-resistant and corrosion-resistant properties of the pipeline are remarkably improved, the pressure-bearing capacity and the sealing property of the pipeline are improved by the core pipe pressure-bearing layer and the outer pipe pressure-bearing layer respectively made of thermoplastic resin or modified materials of the thermoplastic resin, and the pressure-bearing capacity and the deformation-resistant capacity of the pipeline are effectively improved by the enhancement layer, so that the composite pipeline is safe and reliable in structure, thin in pipe wall, small in self weight, convenient to install and maintain, and capable of meeting the application scene of power plant slurry conveying.
Description
Technical Field
The utility model relates to a rigid pipe technical field, concretely relates to a wear-resisting compound pipeline of multilayer for carrying power plant's thick liquid.
Background
The pipeline for conveying the power plant slurry has the requirements of wear resistance, corrosion resistance, temperature resistance, pressure bearing and the like, and the pipelines for conveying the power plant slurry at present are mainly steel-lined rubber pipelines, steel-lined ceramic pipelines and pure plastic solid-wall pipelines.
The steel lining rubber pipeline has the defects of self weight, no wear resistance, bubbling, falling and the like, and the invention patent application with the application number of CN201410846750.0 discloses a preparation method of a chemical corrosion resistance, temperature resistance and wear resistance pipeline, wherein a ceramic wear-resistant layer and a metal substrate are bonded together to form a composite pipe in a gluing mode, but the ceramic wafer has large brittleness and large difference of linear expansion coefficients of an inner layer and an outer layer, and the ceramic wafer is easy to fall off to cause pipeline damage along with the increase of service life, and blocks the pipeline, a spray head and other parts after falling off to cause the problems of leakage, overflow, dripping, leakage and blocking of the pipeline;
the invention patent application document with the application number of CN201621299264.2 discloses a composite wear-resistant pipeline, wherein an inner ring adopts corundum as a wear-resistant material, an outer layer adopts PE modified by the corundum as a pressure-bearing layer, the connection between the inner corundum layer and the outer modified plastic layer is not fixedly connected, the brittleness of a ceramic sheet of the steel-lined ceramic pipeline is large, the difference of linear expansion coefficients of the inner layer and the outer layer is large, the ceramic sheet is easy to fall off to cause pipeline damage along with the use of slurry washing under the condition of large performance difference between materials and under the self gravity of the pipeline, and the corundum layer is easy to deform and damage to cause the reduction of the use effect of the pipeline;
the pure plastic solid wall pipeline has the defects of poor rigidity, poor wear resistance, poor temperature resistance, low pressure bearing capacity and the like, more supports are needed in the construction and use, and the conveying temperature of the desulfurization slurry of a power plant is as high as 60 ℃ for a long time. Aiming at the problem that the pure plastic composite pipeline is easy to deform and collapse under the action of alternate temperature and pressure fields.
SUMMERY OF THE UTILITY MODEL
High temperature, corruption, the application scene of wearing and tearing when solving above-mentioned power plant's thick liquid and carrying, technical problem, the utility model provides a wear-resisting pipeline that accords with of multilayer for carrying power plant's thick liquid possesses that compressive capacity is strong, temperature resistant, corrosion-resistant, stand wear and tear, the compound wear-resisting pipeline of multilayer that overall structure reliability is high.
The utility model provides a wear-resisting composite pipe of multilayer for carrying power plant's thick liquid, includes wearing layer, core pipe pressure bearing layer, reinforcing casing ply and the outer tube pressure bearing layer that from interior to exterior set gradually, the material of wearing layer is polyolefin elastomer, the material of core pipe pressure bearing layer and outer tube pressure bearing layer is thermoplastic resin or its modified material, the reinforcing casing ply is by the winding the one-way preimpregnation of fibre reinforcing on the core pipe pressure bearing layer takes the thermoplasticity to form.
Preferably, the reinforced frame structure further comprises an insulating layer, and the insulating layer is arranged between the reinforced frame layer and the outer pipe pressure bearing layer.
The heat preservation layer comprises an isolation layer, the isolation layer is respectively connected with the outer side of the reinforcing framework layer and the inner side of the outer pipe pressure bearing layer, the isolation layer is of a sandwich structure, and a phase change material layer is filled in the sandwich layer.
The isolation layer is made of the same material as the outer pipe pressure bearing layer and integrally formed with the outer pipe pressure bearing layer.
The thickness of the core tube pressure bearing layer is 1-10 mm.
The thickness of the core pipe pressure bearing layer is 2-5 mm.
Preferably, the material of the outer pipe pressure bearing layer is reinforced thermoplastic resin material.
Preferably, the fiber-reinforced unidirectional prepreg tape has two or more layers, each fiber-reinforced unidirectional prepreg tape is wrapped on the wear-resistant layer in a positive spiral or negative spiral manner to be formed by thermoplastic molding, and the wrapping directions of two adjacent layers of the fiber-reinforced unidirectional prepreg tapes are opposite.
Preferably, each of the fiber-reinforced unidirectional prepreg tapes has a winding angle of 40 ° to 60 °.
Preferably, the fiber-reinforced unidirectional prepreg tape is a glass fiber-reinforced polypropylene prepreg tape, and the glass fiber content of the prepreg tape is 20-50%.
A wearing layer for carrying the wear-resisting composite pipe of multilayer of power plant's thick liquid chooses for use the thermoplastic elastomer to show the wear-resisting of lifting pipe way, corrosion resisting property, core bearing layer and outer tube bearing layer adopt thermoplastic resin or its modified material lifting pipe's bearing capacity respectively, the leakproofness, the enhancement layer effectively promotes the pipeline bearing and the anti deformability, and the wearing layer, core bearing layer and outer tube bearing layer form a whole through coextrusion and melting heat bond, so that composite pipe structure safe and reliable, the pipe wall is thin, the dead weight is little, the installation is maintained conveniently, satisfy the application scene that the thick liquid of power plant was carried.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural view of a wear-resistant composite pipeline according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of the wear-resistant composite pipe according to the embodiment of the present invention.
The specific meanings of the reference numerals are:
1. a wear layer; 2. a core tube pressure bearing layer; 3. a reinforcing carcass layer; 31. a fiber-reinforced unidirectional prepreg tape; 4. an outer pipe pressure bearing layer; 5. a heat-insulating layer; 51. a phase change material; 52. an isolation layer.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-2, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, an embodiment of the present invention is provided, this embodiment the wear-resisting composite pipe of multilayer for carrying power plant's thick liquid includes wearing layer 1, core bearing layer 2, reinforcing casing ply 3 and outer pipe bearing layer 4 that from interior to exterior set gradually, wearing layer 1's material is polyolefin elastomer, core bearing layer 2 and outer pipe bearing layer 4's material is thermoplastic resin or its modified material, reinforcing casing ply 3 is by the winding the one-way preimpregnation of fibre reinforcing area 31 on the core bearing layer 2 is moulded to form by heat.
This application core bearing layer 2 is fixed through the hot melt adhesive wearing layer 1's skin, reinforcing casing ply 3 is in by the one-way preimpregnation area 31 of fibre reinforcement core bearing layer 2 outer thermoplasticity forms, outer tube bearing layer 4 is fixed through the hot melt adhesive reinforcing casing ply 3's outer.
In this embodiment, the wear-resistant layer 1 is made of a modified polyolefin elastomer TPR or TPE, which can significantly improve the wear resistance and corrosion resistance of the pipeline, the core tube pressure-bearing layer 2 is made of a thermoplastic resin, and the thickness of the core tube pressure-bearing layer is 1-10mm, preferably 2-5mm, so as to ensure the pressure-bearing capacity and the sealing property of the core tube pressure-bearing layer 2; the outer pipe pressure bearing layer 4 is preferably made of thermoplastic resin reinforced modified material.
Core pipe bearing layer 2 with outer tube bearing layer 4 promotes composite conduit's bearing capacity and leakproofness, fiber reinforcement casing ply 3 can effectively promote the pipeline bearing and anti deformability, thereby makes this application composite conduit passes through multilayer composite design, has characteristics safe, reliable, that the pipe wall is thin, the dead weight is little, can satisfy the application scene that the desulfurization thick liquid of power plant was carried.
Preferably, the heat insulation layer 5 is further included, and the heat insulation layer 5 is arranged between the reinforcing framework layer 3 and the outer pipe pressure bearing layer 4.
The desulfurization pipeline of power plant's thick liquid when using winter, often can take place the thick liquid pipeline and produce to freeze stifled and cause desulfurization efficiency to reduce, and the temperature of the power plant thick liquid in the pipeline is high, and it is when pipeline, heat preservation 5 is right keep warm in the compound pipeline, avoid because of the temperature crosses lowly in the compound pipeline and leads to the thick liquid pipeline in to produce to freeze stifled, guarantees power plant's desulfurization efficiency.
Just this application heat preservation 5 sets up between reinforcing casing ply 3 and the outer pipe pressure-bearing layer 4, reinforcing casing ply 3's resistance to deformation ability is strong, avoids heat preservation 5 influences composite pipeline's performance.
Preferably, the insulating layer 5 includes an isolation layer 52, the isolation layer 52 is respectively connected to the outside of the reinforcing frame layer 3 and the inside of the outer pressure bearing layer 4, the isolation layer 52 is of a sandwich structure, and a phase change material 51 is filled in the sandwich layer.
The isolation layer 52 is arranged on the outer side of the reinforcing framework layer 3 and the inner side of the outer pipe pressure bearing layer 4, and installation is facilitated.
An electric tracing band heat insulation system can be further installed on the composite pipeline, the heat insulation layer 5 is arranged at a position close to the outer pipe pressure bearing layer 4, so that the heat insulation layer 5 can fully absorb heat emitted by a heat tracing pipeline of the electric tracing band heat insulation system, the heat insulation effect of the electric tracing band heat insulation system can be improved, and the heating power of the electric tracing band heat insulation system can be reduced.
Preferably, the isolation layer 52 is made of the same material as the outer pressure bearing layer 4, and is integrally formed with the outer pressure bearing layer 4.
The material of outer tube bearing layer 4 is thermoplastic resin or its modified material, the isolation layer 52 the material with the material of outer tube bearing layer 4 is the same, in order to guarantee isolation layer 52 avoids phase change material 51 to produce the leakage to phase change material 51's encapsulation effect, and is convenient isolation layer 52's installation, just isolation layer 52 with outer tube bearing layer 4 integrated into one piece, be convenient for isolation layer 52 with outer tube bearing layer 4's processing.
Preferably, the fiber reinforced unidirectional prepreg tape 31 has two or more layers, each fiber reinforced unidirectional prepreg tape 31 is formed by winding the fiber reinforced unidirectional prepreg tape 31 on the wear-resistant layer 1 in a forward spiral or reverse spiral manner through hot molding, and the winding directions of the adjacent two layers of the fiber reinforced unidirectional prepreg tapes 31 are opposite.
In the present embodiment, the winding angle of each fiber-reinforced unidirectional prepreg tape 31 is 40 ° to 60 ° with respect to the axial direction of the composite pipe.
In the embodiment, the pipe pressure bearing and deformation resistance can be further effectively improved by winding the core pipe pressure bearing layer 2 in multiple layers and multiple angles.
Preferably, the fiber-reinforced unidirectional prepreg tape 31 is a glass fiber-reinforced polypropylene prepreg tape, and the glass fiber content thereof is 20 to 50%.
The heat-resisting temperature of the glass fiber reinforced polypropylene prepreg tape is improved, and the mechanical property of the glass fiber reinforced polypropylene prepreg tape is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a wear-resisting compound pipeline of multilayer for carrying power plant's thick liquid, its characterized in that includes wearing layer (1), core bearing layer (2), reinforcing casing ply (3) and outer tube bearing layer (4) that from interior to exterior set gradually, the material of wearing layer (1) is the polyolefin elastomer, the material of core bearing layer (2) and outer tube bearing layer (4) is thermoplastic resin or its modified material, reinforcing casing ply (3) are by the winding one-way preimpregnation area of fibre reinforcing (31) on core bearing layer (2) are hot-moulded and are formed.
2. The multi-layer wear-resistant composite pipe for conveying power plant slurry according to claim 1, further comprising an insulating layer (5), wherein the insulating layer (5) is arranged between the reinforcing framework layer (3) and the outer pressure bearing layer (4).
3. The multilayer wear-resistant composite pipeline for conveying power plant slurry according to claim 2, wherein the heat insulation layer (5) comprises an isolation layer (52), the isolation layer (52) is respectively connected with the outer side of the reinforced framework layer (3) and the inner side of the outer pressure bearing layer (4), the isolation layer (52) is of a sandwich structure, and a phase change material layer (51) is filled in the sandwich layer.
4. The multilayer wear-resistant composite pipe for conveying power plant slurry according to claim 3, wherein the isolation layer (52) is made of the same material as the outer pressure bearing layer (4) and is integrally formed with the outer pressure bearing layer (4).
5. The multilayer wear resistant composite pipe for transporting power plant slurry according to any of claims 1 to 4, characterized in that the core barrel pressure bearing layer (2) has a thickness of 1 to 10 mm.
6. The multilayer wear resistant composite pipe for transporting power plant slurry of claim 5, characterized in that the core bearing layer (2) has a thickness of 2-5 mm.
7. The multilayer wear-resistant composite pipe for transporting power plant slurry according to any one of claims 1 to 4, characterized in that the material of the outer pressure bearing layer (4) is a reinforced thermoplastic resin material.
8. The multilayer abrasion-resistant composite pipe for conveying power plant slurry according to any one of claims 1 to 4, wherein the fiber-reinforced unidirectional prepreg tape (31) has two or more layers, each fiber-reinforced unidirectional prepreg tape (31) is formed by thermoplastic molding by winding the fiber-reinforced unidirectional prepreg tape (31) on the abrasion-resistant layer (1) in a forward spiral or reverse spiral manner, and the winding directions of two adjacent layers of the fiber-reinforced unidirectional prepreg tape (31) are opposite.
9. The multilayer, abrasion resistant composite pipe for transporting power plant slurry according to claim 8, wherein each of said fiber reinforced unidirectional prepreg tapes (31) has a winding angle of 40 ° to 60 °.
10. The multilayer, abrasion resistant composite pipe for transporting power plant slurry according to claim 8, characterized in that said fiber reinforced unidirectional prepreg tape (31) is a glass fiber reinforced polypropylene prepreg tape and has a glass fiber content of 20-50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023172808.8U CN214466707U (en) | 2020-12-24 | 2020-12-24 | Multilayer wear-resistant composite pipeline for conveying power plant slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023172808.8U CN214466707U (en) | 2020-12-24 | 2020-12-24 | Multilayer wear-resistant composite pipeline for conveying power plant slurry |
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| Publication Number | Publication Date |
|---|---|
| CN214466707U true CN214466707U (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023172808.8U Active CN214466707U (en) | 2020-12-24 | 2020-12-24 | Multilayer wear-resistant composite pipeline for conveying power plant slurry |
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| CN (1) | CN214466707U (en) |
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