CN216923493U - Three-wall composite pipe with enhanced compression resistance - Google Patents
Three-wall composite pipe with enhanced compression resistance Download PDFInfo
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- CN216923493U CN216923493U CN202122991148.4U CN202122991148U CN216923493U CN 216923493 U CN216923493 U CN 216923493U CN 202122991148 U CN202122991148 U CN 202122991148U CN 216923493 U CN216923493 U CN 216923493U
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Abstract
The utility model relates to the technical field of pipelines, in particular to a three-wall composite pipe with enhanced compression resistance, which sequentially comprises an inner wall, a structural wall and a film-coated wall from inside to outside, wherein the structural wall is spirally wound on the outer surface of the inner wall at equal intervals, and the film-coated wall is spirally wound on the outer side of the structural wall in an overlapped manner, so that a first spiral containing cavity is formed between the inner wall and the film-coated wall. The utility model aims to solve the problem that the inner wall of a winding pipe or a double-wall corrugated pipe is damaged by external pressure, and provides a three-wall composite pipe with enhanced pressure resistance. When the three-wall composite pipe is stressed, on one hand, the structural wall effectively buffers external pressure, and on the other hand, the first spiral cavity integrally buffers external pressure, so that the external force resistance of the three-wall composite pipe is enhanced, the direct stress of the inner wall is avoided, and the service life of the three-wall composite pipe is prolonged.
Description
Technical Field
The utility model relates to the technical field of pipelines, in particular to a three-wall composite pipe with enhanced pressure resistance and a preparation method thereof.
Background
The winding pipe, the large-caliber winding pipe and the double-wall winding pipe are hollow winding pipes which are formed by winding and welding high-density polyethylene serving as a raw material, and the diameter of the pipe can reach 3 meters due to the unique forming process, which is difficult to finish by other production processes. The winding pipe has the advantages of corrosion resistance, light weight, simple and convenient installation, large circulation, long service life and the like, belongs to an environment-friendly green product, and gradually replaces the pipe made of high-energy-consumption materials such as cement, cast iron, ceramics and the like.
The corrugated pipe has the disadvantages that when the wound pipe or the double-wall corrugated pipe in the market is subjected to external pressure, the stressed areas of the wound pipe or the double-wall corrugated pipe are the inner wall and the structural wall, and the stressed areas of the structural wall are small, so that partial pressure can be shared, and the inner wall is easy to damage due to overlarge bearing pressure, so that the service life is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention is directed to solve the problem that external pressure damages the inner wall of a wound pipe or a double-wall corrugated pipe, and provides a triple-wall composite pipe with enhanced pressure resistance.
The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a three wall composite pipe of reinforcing crushing resistance, includes inner wall, structure wall, tectorial membrane wall from inside to outside in proper order, the equidistant spiral winding of structure wall is in the surface of inner wall, tectorial membrane wall overlap spiral winding in the outside of structure wall to form first spiral appearance chamber between the inner wall with the tectorial membrane wall, its aim at reinforcing tectorial membrane wall's deformability and then reinforcing three wall composite pipe's crushing resistance.
Preferably, the structural wall is formed by embedding a corrugated pipe into a thin-wall cylinder, the inner diameter of the thin-wall cylinder is equal to the outer diameter of the wave crest position of the corrugated pipe, and a second corrugated containing cavity is arranged in the corrugated pipe and aims to enhance the ductility of the structural wall.
Preferably, the inner wall is a fiberglass tube.
A preparation method of a three-wall composite pipe with enhanced compression resistance comprises the following steps,
s1, mixing the raw materials, namely stirring and mixing polyethylene resin, polypropylene resin and silicon dioxide fibers to obtain a mixed raw material;
s2, carrying out vacuum feeding, and conveying the mixed raw material prepared in the step S1 into an extrusion molding machine by using a vacuum suction machine;
s3, performing extrusion molding, plasticizing and molding the mixed raw materials in a composite pipe mold, extruding the mixed raw materials from a discharge nozzle at the tail end of an extrusion molding machine to form an inner wall, and moving the inner wall to the central position of a winding wheel at a constant speed and continuously moving the inner wall forwards;
s4, spirally winding, namely, spirally winding the inner wall prepared in the step S3 from the first traction machine traction structure wall to a winding roller frame at a winding wheel to obtain a spirally wound pipe;
s5, high-temperature curing, namely curing the spiral winding pipe prepared in the step S4 into an integral structure at high temperature and then cooling;
s6 spiral film covering, the second tractor pulls the plastic strip to wind on the outer surface of the high-temperature solidified spiral winding pipe, and the plastic strip is partially covered in sequence to form the three-wall composite pipe with the film covering wall.
Preferably, the extrusion molding machine is a single-screw extrusion molding machine, and the winding rolling frame is arranged at double stations.
Preferably, the structural wall is prepared by embedding the corrugated pipe into the thin-walled cylinder on the mounting disc by the corrugated pipe drawn by the upper driving device and the thin-walled cylinder drawn by the lower driving device.
Preferably, the method further comprises the step of,
s7, cutting, namely cutting the three-wall composite pipe into sections according to a specified length by using a cutting device;
s8, shaping and demolding, namely placing the cut three-wall composite pipe in a shaping mold for shaping and demolding;
s9, pre-embedding the heating wires, and shaping and pre-embedding the notches of the demolded three-wall composite pipe;
s10, warehousing safely, and warehousing safely the finished three-wall composite pipe qualified through inspection.
More preferably, a recovery suction machine is further provided to strongly recover the cutting waste by a funnel suction method when cutting in step S7.
Further preferably, the demolding in the step S8 is gear-driven demolding.
The principle of the utility model is as follows: when the three-wall composite pipe is stressed, the structure wall effectively buffers external pressure on one hand, and the first spiral containing cavity on the other hand integrally buffers external pressure, so that the external force resistance of the three-wall composite pipe is enhanced, the direct stress of the inner wall is avoided, and the service life of the three-wall composite pipe is prolonged.
To sum up, this practical novel following beneficial effect that has:
firstly, the second corrugated cavity effectively enhances the extensibility of the structural wall, thereby enhancing the maximum pressure resistance of the structural wall;
the inner wall of the three-wall composite pipe is a glass fiber pipe, so that the three-wall composite pipe is ensured to have the characteristics of acid and alkali resistance and good insulation;
thirdly, the full-automatic production is realized by the technological processes of S1 raw material mixing, S2 vacuum feeding, S3 extrusion molding, S4 spiral winding, S5 high-temperature curing and S6 spiral film coating, and a large amount of manpower is saved;
fourthly, the winding mode of double stations is beneficial to improving the production efficiency;
fifthly, the production mode of the structure wall overcomes the defects of complicated manual pipe penetrating process, time consumption and labor consumption;
sixthly, the recycling suction machine effectively recycles the waste materials, so that the production cost is effectively saved;
drawings
FIG. 1 is a perspective view of the present invention
FIG. 2 is a front view of the present invention
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a flow chart of the overall structure of a method for manufacturing a triple-walled composite pipe with enhanced compressive resistance according to the present invention;
in the figure: 1. an inner wall;
2. a structural wall; 201. a bellows; 202. a thin-walled cylinder;
3. a film-coated wall;
4. a first spiral volume;
5. a second corrugated volume.
Detailed Description
The utility model is described in detail below with reference to the figures and examples.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description of the present invention, and do not indicate or indicate that the indicated weighing or component must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Specifically, referring to fig. 1-3, a three-wall composite pipe with enhanced compressive property sequentially comprises an inner wall 1, a structural wall 2 and a film-coated wall 3 from inside to outside, wherein the structural wall 2 is spirally wound on the outer surface of the inner wall 1 at equal intervals, and the film-coated wall 3 is spirally wound on the outer side of the structural wall 2 partially in an overlapping manner, so that a first spiral containing cavity 4 is formed between the inner wall 1 and the film-coated wall 3, and the three-wall composite pipe aims at enhancing the deformability of the film-coated wall 3 and further enhancing the compressive property of the three-wall composite pipe.
Through above-mentioned technical scheme, when the compound pipe atress of three walls, external pressure is cushioned effectively to structure wall 2 on the one hand, and the first spiral of on the other hand holds chamber 4 and cushions external pressure on the whole, strengthens the anti external force performance of the compound pipe of three walls, avoids 1 direct atress of inner wall simultaneously, prolongs the life of the compound pipe of three walls.
Specifically, the structural wall 2 is formed by embedding a corrugated pipe 201 into a thin-wall cylinder 202, the inner diameter of the thin-wall cylinder 202 is equal to the outer diameter of the wave crest position of the corrugated pipe 201, and a second corrugated cavity 5 is arranged inside the corrugated pipe 201 and aims to enhance the ductility of the structural wall 2.
Through the technical scheme, the second corrugated cavity 5 effectively enhances the extensibility of the structural wall 2, and further enhances the maximum pressure resistance of the structural wall 2.
Specifically, the inner wall 1 is a glass fiber pipe, and the characteristics of acid and alkali resistance and good insulation of the three-wall composite pipe are guaranteed.
Referring specifically to fig. 4, a method for preparing a triple-walled composite tube with enhanced compressive resistance includes the steps of,
s1, mixing the raw materials, namely stirring and mixing polyethylene resin, polypropylene resin and silicon dioxide fibers to obtain a mixed raw material;
s2, carrying out vacuum feeding, and conveying the mixed raw material prepared in the step S1 into an extrusion molding machine by using a vacuum suction machine;
s3, carrying out extrusion molding, plasticizing and molding the mixed raw materials in a composite pipe mold, extruding the mixed raw materials from a discharge nozzle at the tail end of an extrusion molding machine to form an inner wall 1, and moving the inner wall 1 to the central position of a winding wheel at a constant speed and continuously moving forwards;
s4, spirally winding, namely, the first tractor pulls the structure wall 2 to a winding roller frame to spirally wind the inner wall 1 prepared in the step S3 at a winding wheel to obtain a spirally wound pipe;
s5, high-temperature curing, namely curing the spiral winding pipe prepared in the step S4 into an integral structure at high temperature and then cooling;
s6 spiral film covering, the second tractor pulls the plastic strip to wind on the outer surface of the high-temperature solidified spiral winding pipe, and the plastic strip is partially covered in sequence to form the three-wall composite pipe of the film covering wall 3.
Through the technical scheme, the full-automatic production is realized through the technological processes of S1 raw material mixing, S2 vacuum feeding, S3 extrusion molding, S4 spiral winding, S5 high-temperature curing and S6 spiral film coating, and a large amount of manpower is saved.
Specifically, the plastic extruder is a single-screw plastic extruder, the winding rolling frame is arranged at double stations, and the double-station winding mode is favorable for improving the production efficiency.
Specifically, the structural wall 2 is prepared by embedding the corrugated pipe 201 into the thin-wall cylinder 202 on an installation disc by the corrugated pipe 201 drawn by an upper driving device and the thin-wall cylinder 202 drawn by a lower driving device, and the defects of complexity, time consumption and labor consumption in a manual pipe penetrating process are overcome by the production mode of the structural wall 2.
In particular to a preparation method of a three-wall composite pipe with enhanced compression resistance, which also comprises the steps of,
s7, cutting, namely cutting the three-wall composite pipe into sections according to the specified length by using a cutting device;
s8, shaping and demolding, namely placing the cut three-wall composite pipe in a shaping mold for shaping and demolding;
s9, pre-embedding the heating wires, and shaping and pre-embedding the notches of the demolded three-wall composite pipe;
and S10, safely warehousing, and warehousing the qualified finished three-wall composite tube.
Specifically, when the step S7 is used for cutting, a recovery suction machine is further arranged, the cutting waste is strongly recovered in a funnel suction mode, the waste effectively recovered by the recovery suction machine is recycled, and the production cost is effectively saved.
Specifically, the demolding in the step S8 adopts a gear transmission type demolding.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (3)
1. The utility model provides a three wall composite pipe of reinforcing crushing resistance, its characterized in that includes inner wall, structure wall, tectorial membrane wall from inside to outside in proper order, the equidistant helical winding of structure wall is in the surface of inner wall, tectorial membrane wall part overlap helical winding in the outside of structure wall, thereby the inner wall with form first spiral between the tectorial membrane wall and hold the chamber, its aim at reinforcing tectorial membrane wall's deformability and then reinforcing three wall composite pipe's crushing resistance.
2. The triple-walled composite tube with enhanced compressive resistance of claim 1, wherein the structural wall is formed by embedding a corrugated tube into a thin-walled cylinder, the thin-walled cylinder has an inner diameter equal to the outer diameter of the corrugated tube at the peak position, and a second corrugated container is arranged inside the corrugated tube for enhancing the ductility of the structural wall.
3. The reinforced crush-resistant triple wall composite tube of claim 1, wherein the inner wall is a fiberglass tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122991148.4U CN216923493U (en) | 2021-12-01 | 2021-12-01 | Three-wall composite pipe with enhanced compression resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122991148.4U CN216923493U (en) | 2021-12-01 | 2021-12-01 | Three-wall composite pipe with enhanced compression resistance |
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| CN216923493U true CN216923493U (en) | 2022-07-08 |
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| CN202122991148.4U Active CN216923493U (en) | 2021-12-01 | 2021-12-01 | Three-wall composite pipe with enhanced compression resistance |
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2021
- 2021-12-01 CN CN202122991148.4U patent/CN216923493U/en active Active
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