CN115823366A - High-ring-stiffness steel skeleton reinforced polyethylene composite pipe and pipe fitting - Google Patents
High-ring-stiffness steel skeleton reinforced polyethylene composite pipe and pipe fitting Download PDFInfo
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- CN115823366A CN115823366A CN202211696626.1A CN202211696626A CN115823366A CN 115823366 A CN115823366 A CN 115823366A CN 202211696626 A CN202211696626 A CN 202211696626A CN 115823366 A CN115823366 A CN 115823366A
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Abstract
The application provides a high-ring-stiffness steel skeleton reinforced polyethylene composite pipe and a pipe fitting, and relates to the technical field of building materials. A high-ring-stiffness steel skeleton-reinforced polyethylene composite pipe comprises an inner base layer, a first sealing layer, a first structure reinforcing layer, a second structure reinforcing layer, a third structure reinforcing layer and a protective outer layer which are sequentially stacked, wherein a first synergetic pressure-resistant layer is arranged between the first structure reinforcing layer and the second structure reinforcing layer and between the second structure reinforcing layer and the third structure reinforcing layer. The pipe fitting is in butt joint with the tail end of the high-ring-stiffness steel skeleton reinforced polyethylene composite pipe and comprises an inner layer, a second sealing layer, a fifth structure reinforcing layer, a second cooperative pressure-resistant layer and an outer shell layer which are sequentially sleeved, wherein the number of the fifth structure reinforcing layer is multiple. The pipe and the pipe fitting have the advantages of high structural strength and good tightness.
Description
Technical Field
The application relates to the technical field of building materials, in particular to a high-ring-stiffness steel skeleton reinforced polyethylene composite pipe and a pipe fitting.
Background
A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. Generally, a fluid is pressurized by a blower, a compressor, a pump, a boiler, etc., and then flows from a high pressure portion to a low pressure portion of a pipe, or is transported by the pressure or gravity of the fluid itself. The use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations. In the fields of water supply engineering, fire engineering and municipal engineering, a large number of pipes are commonly used, including metal pipes and polymer composite pipes, the most common of which is PE (polyethylene) pipes, which are generally used as water inlet pipes or water outlet pipes. The PE pipe is a high-molecular polyethylene composite pipe, is light in weight, convenient to construct, good in corrosion resistance and long in service life, and more importantly, the PE pipe is simple to synthesize and process, so that the cost can be reduced on the basis of guaranteeing the service performance.
The traditional polyethylene pipe is simple in structure and is made of a single solid polyethylene material, so that the traditional polyethylene pipe becomes brittle and hard in cold weather and is easy to damage, and the solid pipe wall is not beneficial to reducing the self-added quality. The polyethylene composite pipe is prepared by respectively plasticizing and melting two kinds of polyethylene resin with different densities by two extruders at the same time, and then extruding the molten plastic into a mold capable of forming the composite pipe, wherein the formed pipe is the polyethylene composite pipe. The composite pipe can be extruded and compounded by various plastics, and the pipe formed by compounding high-density polyethylene and low-density polyethylene has the characteristics of raw materials, and has better pressure resistance and corrosion resistance than common polyethylene pipes. However, after the general polyethylene composite pipe is used for a long time, the sealing performance is poor, leakage is easy to occur, and resource waste is caused. Therefore, a composite pipe with high structural strength and good sealing property is needed. And, two general polyethylene pipes when the butt joint, often just dock behind the two day pipeline hot melt, and can shake during artifical butt joint, cause the concatenation position to produce the concatenation, consequently, still need one kind with compound pipeline structure complex pipe fitting, promote the leakproofness of butt joint department.
Disclosure of Invention
The application aims to provide a high-ring-stiffness steel skeleton reinforced polyethylene composite pipe which has the advantages of high structural strength and good airtightness.
Another objective of the present application is to provide a high ring stiffness steel skeleton reinforced polyethylene composite pipe fitting, which can be structurally matched with a high ring stiffness steel skeleton reinforced polyethylene composite pipe, so as to improve the sealing property at the butt joint of two composite pipes.
The embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides a high ring stiffness steel skeleton reinforced polyethylene composite pipe, including an inner base layer, a first sealing layer, a first structure reinforcing layer, a second structure reinforcing layer, a third structure reinforcing layer, and a protective outer layer, which are sequentially stacked, where first cooperative pressure-resistant layers are disposed between the first structure reinforcing layer and the second structure reinforcing layer, and between the second structure reinforcing layer and the third structure reinforcing layer.
In some embodiments of the present application, a positioning layer is disposed between the third structural reinforcing layer and the outer protective layer, and a plurality of reinforcing ribs are fixed on the positioning layer.
In some embodiments of the present application, a fourth structural reinforcing layer is disposed between the reinforcing bars and the protective outer layer.
In some embodiments of the present application, the fourth structural reinforcing layer is a steel wire wound structure.
In some embodiments of the present application, the first structural reinforcing layer and the second structural reinforcing layer are both welded steel wire skeleton structures, and the pores of the second structural reinforcing layer are smaller than the pores of the first structural reinforcing layer.
In some embodiments of the present application, the third structural reinforcement layer is a porous steel band structure.
In a second aspect, an embodiment of the present application provides a pipe fitting structurally matched with the steel skeleton reinforced polyethylene composite pipe with high ring stiffness, the pipe fitting is butted with the tail end of the steel skeleton reinforced polyethylene composite pipe with high ring stiffness, and the pipe fitting includes an inner layer, a second sealing layer, a fifth structure reinforcing layer, a second cooperative pressure-resistant layer and an outer shell layer, which are sequentially sleeved, where the number of the fifth structure reinforcing layer is multiple.
In some embodiments of the present application, the fifth structural reinforcement layer is a steel wire wound structure or a welded steel wire skeleton structure.
Compared with the prior art, the embodiment of the application has at least the following advantages or beneficial effects:
this application is through including the first sealing layer of parcel one deck on the basic unit, can play fine sealed parcel effect to the basic unit, thereby guarantee after long-term the use, it still has fine seal, be provided with first structure enhancement layer again, second structure enhancement layer and third structure enhancement layer, the structure of multilayer steel material can provide fine structural stability, thereby obtain the tubular product of high ring stiffness, and the substrate is high density polyethylene, it can have fine elasticity and holding nature, utilize the multilayer structure enhancement layer in its outside, can combine together advantages between them, obtain good compound effect, very high structural strength and impact resistance have.
This application still provides and tubular product structure complex pipe fitting, the shape of this pipe fitting is the same with current pipe fitting (can be the elbow, the tee bend, it is straight-through or the flange), and the inlayer of this pipe fitting is high density polyethylene, it can have fine elasticity and holding nature, and wrap up it with the second sealing layer afterwards, can further guarantee its parcel and leakproofness, thereby guarantee after long-term the use, it still has fine seal, be provided with the fifth structure enhancement layer again, play fine structure protection effect to the inlayer, and then improve the ring rigidity of pipe fitting, and multilayer structure's combined action, can play fine impact resistance, very high structural strength has, and then can strengthen the compound tubular product structure cooperation of polyethylene with high ring rigidity steel skeleton, thereby promote the leakproofness of two compound pipe butt joints.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a high ring stiffness steel skeleton reinforced polyethylene composite pipe according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a steel-frame reinforced polyethylene composite pipe with high ring stiffness according to an embodiment of the present disclosure;
FIG. 3 is a second schematic structural view of the steel-frame reinforced polyethylene composite pipe with high ring stiffness according to the embodiment of the present invention;
FIG. 4 is a third schematic structural view of the steel-frame reinforced polyethylene composite pipe with high ring stiffness according to the embodiment of the present invention;
FIG. 5 is a fourth schematic structural view of the steel-frame-reinforced polyethylene composite pipe with high ring stiffness according to the embodiment of the present invention;
fig. 6 is a fifth schematic structural view of the high ring stiffness steel-frame reinforced polyethylene composite pipe according to the embodiment of the present application.
Icon: 1-an inner base layer; 2-a first sealing layer; 3-a first structural reinforcement layer; 4-a second structural reinforcement layer; 5-a third structural reinforcement layer; 6-protective outer layer; 7-a first cooperative voltage withstanding layer; 8-a positioning layer; 9-reinforcing ribs; 10-a fourth structural reinforcement layer; 11-an inner layer; 12-a second sealing layer; 13-a fifth structural reinforcement layer; 14-a second cooperative voltage-resistant layer; 15-envelope layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural view of a high ring stiffness steel skeleton reinforced polyethylene composite pipe according to an embodiment of the present application.
The embodiment of the application provides a high-ring-stiffness steel skeleton-reinforced polyethylene composite pipe, which comprises an inner base layer 1, a first sealing layer 2, a first structure reinforcing layer 3, a second structure reinforcing layer 4, a third structure reinforcing layer 5 and a protective outer layer 6 which are sequentially stacked, wherein a first cooperative pressure-resistant layer 7 is arranged between the first structure reinforcing layer 3 and the second structure reinforcing layer 4 and between the second structure reinforcing layer 4 and the third structure reinforcing layer 5.
In this embodiment, the inner base layer 1 is a tubular shape, made of high density polyethylene, which has strong resistance, acid and alkali resistance, and resistance to corrosion by organic solvents, so as to ensure that it can be used for transporting various solutions or gases, and also has strong electrical insulation performance, good safety, and is tasteless and nontoxic, so that it can be widely used for eating and wearing, and because it is not aging-resistant, the inventor chooses to wrap a first sealing layer 2 on the surface of the inner base layer 1; the first sealing layer 2 is adhered to the inner base layer 1 through an adhesive material, which is preferably rubber or polypropylene, and can seal the inner base layer 1; the first structure enhancement layer 3 is made of steel with hardness, is adhered to the first sealing layer 2 through an adhesive material, is not easy to fall off due to tight adhesion, can play a good role in stabilizing the structure and the position of the inner base layer 1, and can resist compression, tension and deformation; the first collaborative pressure-resistant layer 7 is arranged between the second structural enhancement layer 4 and the first structural enhancement layer 3 at intervals, the two structural enhancement layers are tightly connected through the first collaborative pressure-resistant layer 7, so that the support of the inner base layer 1 is stabilized, and the structural strength of the second structural enhancement layer 4 is higher than that of the first structural enhancement layer 3, so that the better protection can be realized from the outside, and when the internal pressure is overlarge, the internal pressure can be better buffered due to the fact that the structural strength is slightly lower than that of the second structural enhancement layer 4 and the elasticity is better than that of the second structural enhancement layer 4, and the protected inner base layer 1 is divided from the inside and the outside, so that the better structural stability is realized; the first collaborative pressure-resistant layer 7 is arranged between the third structure enhancement layer 5 and the second structure enhancement layer 4 at intervals, the two structure enhancement layers are tightly connected through the first collaborative pressure-resistant layer 7, so that the support of the inner base layer 1 is stabilized, and the structural strength of the third structure enhancement layer 5 is higher than that of the second structure enhancement layer 4, so that the capacity of resisting external deformation is better, the inner base layer 1 can be better protected, and when the first structure enhancement layer 3 and the second structure enhancement layer 4 deform due to overlarge internal pressure, the pressure is resolved, so that the stability of the whole composite pipe can be ensured; the protective outer layer 6 is made of an anticorrosive wear-resistant refractory material, preferably phenolic resin, metal particles and some fireproof and corrosion-resistant materials, has a good protective effect, improves the pipeline transportation safety, and improves the service life and the working strength of the pipeline; the number of the first cooperative pressure-resistant layers 7 is 2, and the 2 first cooperative pressure-resistant layers 7 are respectively arranged between the third structural enhancement layer 5 and the second structural enhancement layer 4 and between the first structural enhancement layer 3 and the second structural enhancement layer 4 and are used for cooperating the pressure resistance of the two structural enhancement layers.
Preferably, a positioning layer 8 is arranged between the third structural reinforcing layer 5 and the outer protective layer 6, and a plurality of reinforcing ribs 9 are fixed on the positioning layer 8. The positioning layer 8 is attached to the third structure reinforcing layer 5 and is used for fixedly arranging the reinforcing ribs 9; the reinforcing ribs 9 are uniformly laid on the positioning layer 8, have good bending resistance in the long-diameter direction and ensure that the composite pipe is not easy to bend, so that the whole composite pipe is not easy to damage and has good air tightness.
Preferably, the reinforcing ribs 9 are arranged in a staggered manner, and the arrangement can achieve a certain structural supporting effect on the annular edge of the composite pipe, so that the whole composite pipe is not easy to damage and has good air tightness.
Preferably, a fourth structural reinforcing layer 10 is provided between the reinforcing ribs 9 and the protective outer layer 6. The fourth structural reinforcement layer 10 has a structural strength better than that of the third structural reinforcement layer 5, and can provide better structural protection for the entire composite pipe.
Preferably, the fourth structural reinforcing layer 10 is a wire wound structure. The steel wire winding structure can form a prestress combined structure for the inside, the main stress of the inner base layer 1 is in a compressive stress state in a pre-tightening state and a pressurized state, the stress of the steel wire winding fourth structure reinforcing layer 10 is not changed greatly in a working state and the pre-tightening state, and the fourth structure reinforcing layer 10 becomes a protective layer of the inner base layer 1. Because of strong friction between the four structural reinforcement layers 10, even if the inner base layer 1 is broken and the internal pressure leaks, the four structural reinforcement layers 10 are not instantaneously and simultaneously broken, so that the explosion risk is avoided, and the internal part is well protected and supported.
Preferably, the first structural reinforcement layer 3 and the second structural reinforcement layer 4 are both welded steel wire skeleton structures, and the pores of the second structural reinforcement layer 4 are smaller than those of the first structural reinforcement layer 3. First structure enhancement layer 3 and second structure enhancement layer 4 are welding wire skeleton texture, and the benefit that sets up like this is for whole compound tubular product has good very strong rigidity, consequently relatively is fit for fields such as long distance water supply, gas transmission and uses, and with its parcel on interior basic unit 1, can overcome the quick stress that the plastic tubing is difficult to overcome, have the intensity, rigidity, the shock resistance that exceed ordinary pure plastic tubing, characteristics such as the low linear expansion coefficient and the creep resistance of similar to the steel pipe. And the pore space of the second structure reinforcing layer 4 is smaller than the pore space of the first structure reinforcing layer 3, so that the structure strength of the composite pipe can be improved from inside to outside, and the protection of the composite pipe is further improved.
Preferably, the third structural reinforcing layer 5 is a porous steel band structure. The porous steel band structure has good flexibility, so when the porous steel band structure is impacted by external force, the original shape can be quickly recovered, the porous steel band structure has good resilience, the external pressure can be effectively responded, and in addition, the porous steel band structure can reduce dead weight so that the pipeline is lighter.
Example 2
Referring to fig. 2-6, fig. 2 is a schematic structural view of the high ring stiffness steel skeleton reinforced polyethylene composite pipe of the embodiment of the present application; FIG. 3 is a second schematic structural view of the steel-frame reinforced polyethylene composite pipe with high ring stiffness according to the embodiment of the present invention; fig. 4 is a third structural schematic view of the high loop stiffness steel skeleton reinforced polyethylene composite pipe fitting according to the embodiment of the present application; FIG. 5 is a fourth embodiment of the present invention, showing a high ring stiffness steel reinforced polyethylene composite pipe; fig. 6 is a fifth schematic structural view of the high ring stiffness steel-frame reinforced polyethylene composite pipe according to the embodiment of the present application.
The embodiment of the application provides a high-ring-stiffness steel skeleton-reinforced polyethylene composite pipe fitting which is structurally matched with a high-ring-stiffness steel skeleton-reinforced polyethylene composite pipe, specifically, is butted with the tail end of the high-ring-stiffness steel skeleton-reinforced polyethylene composite pipe, and comprises an inner layer 11, a second sealing layer 12, a fifth structure reinforcing layer 13, a second synergistic pressure-resistant layer 14 and an outer shell layer 15 which are sequentially sleeved, wherein the number of the fifth structure reinforcing layer 13 is multiple.
In this embodiment, the shape of the steel skeleton reinforced polyethylene composite pipe with high ring stiffness is the same as that of the existing pipe, and the pipe can be an elbow, a tee, a straight-through or a flange (as shown in fig. 2-6), the inside of the pipe is shown in fig. 2, the inside of the pipe is an inner layer 11, the material of the inner layer 11 is high-density polyethylene, the pipe can have good chemical corrosion resistance, good sanitary performance, no scale formation, can effectively prevent algae, bacteria or fungi from growing, has a smooth inner wall, good water permeability, good aging resistance, long service life, good cold impact resistance, low ultralow temperature embrittlement temperature and unique flexibility; a second sealing layer 12, which is wrapped around the inner layer 11 and is adhered to the inner layer 11 by an adhesive material, preferably rubber or polypropylene, capable of sealing the inner layer 11; the fifth structure enhancement layer 13 is wrapped on the second sealing layer 12, is made of steel with hardness, is adhered to the second sealing layer 12 through an adhesive material, is not easy to fall off due to tight adhesion, can play a good role in stabilizing the structure and the position of the inner layer 11, can resist compression, tension and deformation, has multiple layers, and can provide good protection and support for the inside; the second cooperative pressure-resistant layer 14 is wrapped on the fifth structural reinforcing layer 13, and is wrapped with the outer shell layer 15 for tightly connecting the two layers, so that the stability of the whole composite pipe fitting is ensured; outer shell 15 parcel is on the second is withstand voltage layer 14 in coordination, and it is anticorrosive wear-resisting fire-resistant material, and its preferred phenolic resin, metal particle and some fire-resistant corrosion-resistant materials constitute, have fine protection effect, increase the security of pipeline butt joint department, improve pipe fitting life and working strength.
Preferably, the fifth structural reinforcement layer 13 is a steel wire wound structure or a welded steel wire skeleton structure. The fifth structural reinforcing layer 13 of this structure can provide excellent support stability to the inside, thereby protecting the inner layer 11.
In conclusion, this application is through including the first sealing layer 2 of parcel one deck on basic unit 1, can play fine sealed parcel effect to basic unit 1, and guarantee after long-term the use, it still has fine seal, be provided with first structure enhancement layer 3 again, second structure enhancement layer 4 and third structure enhancement layer 5, the structure of multilayer steel material can provide fine structural stability, thereby obtain the tubular product of high ring stiffness, and the substrate is high density polyethylene, it can have fine elasticity and holding nature, utilize multilayer structure enhancement layer outside it, can combine together the advantage between the two, obtain good compound effect, very high structural strength and impact resistance have.
The application also provides a pipe fitting matched with the pipe structure, the shape of the pipe fitting is the same as that of the existing pipe fitting (can be an elbow, a tee joint, a straight joint or a flange), the inner layer 11 of the pipe fitting is high-density polyethylene, the pipe fitting can have good elasticity and accommodation performance, the pipe fitting is wrapped by the second sealing layer 12, the wrapping and sealing performance can be further guaranteed, and the pipe fitting is guaranteed to be still good in sealing performance after being used for a long time, and then the fifth structure reinforcing layer 13 is arranged to play a good role in protecting the inner layer 11 and improve the ring stiffness of the pipe fitting.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. The high-ring-stiffness steel skeleton-reinforced polyethylene composite pipe is characterized by comprising an inner base layer, a first sealing layer, a first structure reinforcing layer, a second structure reinforcing layer, a third structure reinforcing layer and a protective outer layer which are sequentially stacked, wherein first cooperative pressure-resistant layers are arranged between the first structure reinforcing layer and the second structure reinforcing layer and between the second structure reinforcing layer and the third structure reinforcing layer.
2. The high ring stiffness steel skeleton reinforced polyethylene composite pipe as claimed in claim 1, wherein a positioning layer is arranged between the third structural reinforcing layer and the protective outer layer, and a plurality of reinforcing ribs are fixed on the positioning layer.
3. The high ring stiffness steel skeleton reinforced polyethylene composite pipe as claimed in claim 2, wherein a fourth structural reinforcing layer is arranged between the reinforcing rib and the protective outer layer.
4. The steel skeleton reinforced polyethylene composite pipe with high ring stiffness as claimed in claim 3, wherein the fourth structural reinforcing layer is a steel wire wound structure.
5. The high ring stiffness steel-frame-reinforced polyethylene composite pipe as claimed in claim 1, wherein the first structural reinforcement layer and the second structural reinforcement layer are both welded steel wire frame structures, and the pores of the second structural reinforcement layer are smaller than those of the first structural reinforcement layer.
6. The high ring stiffness steel skeleton reinforced polyethylene composite pipe as claimed in claim 1, wherein the third structural reinforcing layer is a porous steel band structure.
7. The high-ring-stiffness steel-skeleton-reinforced polyethylene composite pipe fitting structurally matched with the high-ring-stiffness steel-skeleton-reinforced polyethylene composite pipe material as claimed in any one of claims 1 to 6 is characterized in that the pipe fitting is butted with the tail end of the high-ring-stiffness steel-skeleton-reinforced polyethylene composite pipe material, and comprises an inner layer, a second sealing layer, a fifth structure reinforcing layer, a second synergetic pressure-resistant layer and an outer shell layer which are sequentially sleeved, wherein the number of the fifth structure reinforcing layer is multiple.
8. The high loop stiffness steel-frame reinforced polyethylene composite pipe fitting of claim 7, wherein the fifth structural reinforcing layer is a steel wire wound structure or a welded steel wire frame structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211696626.1A CN115823366A (en) | 2022-12-28 | 2022-12-28 | High-ring-stiffness steel skeleton reinforced polyethylene composite pipe and pipe fitting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211696626.1A CN115823366A (en) | 2022-12-28 | 2022-12-28 | High-ring-stiffness steel skeleton reinforced polyethylene composite pipe and pipe fitting |
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| CN115823366A true CN115823366A (en) | 2023-03-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024183392A1 (en) * | 2023-08-09 | 2024-09-12 | 浙江大学 | Composite pipe preventing bulging caused by hydrogen permeation, and design method therefor, and hydrogen transmission pipe network |
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2022
- 2022-12-28 CN CN202211696626.1A patent/CN115823366A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024183392A1 (en) * | 2023-08-09 | 2024-09-12 | 浙江大学 | Composite pipe preventing bulging caused by hydrogen permeation, and design method therefor, and hydrogen transmission pipe network |
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