DN600 bamboo winding composite pipe

Abstract

The utility model discloses a DN600 bamboo winding composite pipe which comprises a lining layer, a structural layer arranged on the lining layer and a protective layer arranged outside the structural layer, the structural layer comprises a first layer of bamboo skin curtain wound on the lining layer, the first layer of bamboo skin curtain comprises a bamboo strip A and a bamboo strip B, the bamboo strip A and the bamboo strip B are sequentially connected through braided wires, and the protective layer is arranged outside the protective layer. The bamboo strip A and the bamboo strip B are different in length, the first bamboo strip curtains are crossed together, the second bamboo strip curtains are wound on the butt joint positions of the first bamboo strip curtains, the second bamboo strip curtains are crossed together, the third bamboo strip curtains are obliquely wound on the second bamboo strip curtains, the third bamboo strip curtains are crossed together, and the first bamboo strip curtains and the second bamboo strip curtains are wound on the second bamboo strip curtains. And the first-layer bamboo skin curtain, the second-layer bamboo skin curtain and the third-layer bamboo skin curtain have the same structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of composite pipe, specifically to a DN600 bamboo winding composite pipe. BACKGROUND

[0002] In the field of traditional pipeline engineering, widely used metal pipe materials (such as steel pipes) and plastic pipe materials (such as polyethylene pipes) have their own advantages in performance, but they all face some serious problems. The production of metal pipe materials often relies on a large amount of mineral resources, and the mining and smelting process not only consumes a large amount of energy, but also causes serious pollution to the environment, such as a large amount of waste residue, waste gas and waste water. At the same time, metal pipe materials are prone to rust and corrosion, which need to be treated for corrosion resistance, which further increases the cost and environmental burden.

[0003] The prior art CN202123027867.0 discloses a bamboo winding composite pipe, a plurality of connecting holes are arranged on the side surface of the bamboo strip at equal intervals, a plurality of grooves are arranged on the first surface of the bamboo strip at equal intervals, and a plurality of protrusions matched with the grooves are arranged on the second surface of the bamboo strip. The disadvantages are: on the one hand, the through holes will reduce the cross-sectional area of the bamboo strip, and its resistance to stretching, compression and bending will be weakened when bearing external force. Especially when subjected to force perpendicular to the axis direction of the bamboo strip, stress concentration is easy to occur at the through hole, which leads to the bamboo strip being more prone to breakage. On the other hand, the grooves will also damage the structural integrity of the bamboo strip. The bamboo fibers at the groove are cut off, reducing the strength of the bamboo strip at that part. When subjected to external force, the groove may become a weak point and be prone to cracking or breaking; opening through holes and grooves also affects the stability and strength of the bamboo strip. More importantly: opening multiple grooves and through holes on the bamboo strip not only increases the complexity and difficulty of the work, but also increases the work intensity. SUMMARY

[0004] The utility model aims to provide a DN600 bamboo winding composite pipe with high stability and strength to solve the problems raised in the background technology.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a DN600 bamboo winding composite pipe, including an inner lining, a structure layer arranged on the inner lining and a protective layer arranged outside the structure layer, the structure layer includes a first layer bamboo screen winding on the inner lining, the first layer bamboo screen includes A bamboo strip and B bamboo strip, the A bamboo strip and the B bamboo strip are connected in turn through braiding line, the A bamboo strip and the B bamboo strip are different in length, the first layer bamboo screen is crossed together, the butt joint of the first layer bamboo screen is wound with the second layer bamboo screen, the second layer bamboo screen is crossed together, the second layer bamboo screen is obliquely wound with the third layer bamboo screen, the third layer bamboo screen is crossed together, and the first layer bamboo screen, the second layer bamboo screen and the third layer bamboo screen are the same in structure.

[0006] The first layer bamboo screen, the second layer bamboo screen and the third layer bamboo screen are alternately wound on the inner lining in turn.

[0007] The A bamboo strip is 200mm long, 5mm wide and 2mm thick, and the B bamboo strip is 120mm long, 5mm wide and 2mm thick.

[0008] The first layer bamboo screen, the second layer bamboo screen and the third layer bamboo screen are solidly adhered by an adhesive.

[0009] The inner lining and the first layer bamboo screen are solidly adhered by an adhesive.

[0010] The bamboo strips of the first layer bamboo screen are parallel to the axial direction of the composite pipe.

[0011] A fourth bamboo screen obliquely opposite to the third layer bamboo screen can be added to the third layer bamboo screen.

[0012] The third layer bamboo screen and the fourth bamboo screen form a ring-shaped net structure, thereby increasing the strength of the structure layer.

[0013] The fourth bamboo screen is the same in structure as the third layer bamboo screen, and the fourth bamboo screens are crossed together.

[0014] The first layer bamboo screen, the second layer bamboo screen, the third layer bamboo screen and the fourth bamboo screen are alternately wound on the inner lining in turn.

[0015] Compared to existing technologies, the bamboo strip curtain structure of this invention is similar to a summer mat. However, in this invention, bamboo strips A and B are sequentially connected by weaving thread. The thicker bamboo strip curtain has several forked holes on both sides, facilitating the crossing of the bamboo strips. On one hand, the small size of bamboo strips A and B makes rolling the bamboo strip curtain together easier for production and transportation; on the other hand, the cross-joined bamboo strip curtains have high structural strength after curing with adhesive. A second layer of bamboo strip curtain is wrapped around the joint of the first layer, increasing the structural strength at the cross joint. A third layer of bamboo strip curtain is obliquely wrapped around the second layer, forming a structural layer through these three layers. This combination of winding methods allows the pipe to better maintain its shape and size when subjected to external forces. This not only helps ensure the normal operation of the pipeline system but also extends the service life of the pipe. Attached Figure Description

[0016] Fig. 1 This is a structural schematic diagram of a DN600 bamboo-wound composite pipe according to this utility model;

[0017] Fig. 2 This is a schematic diagram of the first layer of bamboo strip curtain structure of this utility model;

[0018] Fig. 3 This is a schematic diagram of the structure of two bamboo strips intersecting each other (this is the wrapped and laid-out state).

[0019] Fig. 4 This is a partial structural diagram of the first layer, second layer, and third layer of bamboo strip curtain of this utility model.

[0020] Fig. 5 This is a schematic diagram of the inclined third layer bamboo strip curtain of this utility model. Detailed Implementation

[0021] Example 1: As Figs. 1-5 As shown, a DN600 bamboo-wound composite pipe includes an inner lining layer 1, a structural layer 2 disposed on the inner lining layer 1, and a protective layer 3 disposed outside the structural layer 2. The structural layer includes a first layer of bamboo strips 8 wound on the inner lining layer. The first layer of bamboo strips 8 includes bamboo strips A 4 and B 5, which are connected sequentially by weaving thread 7. The lengths of bamboo strips A 4 and B 5 are different. The first layer of bamboo strips 8 intersects with each other. A second layer of bamboo strips 9 is wound around the joints of the first layer of bamboo strips 8. The second layer of bamboo strips 9 intersects with each other. A third layer of bamboo strips 10 is obliquely wound on the second layer of bamboo strips 9. The third layer of bamboo strips 10 intersects with each other. The first layer of bamboo strips 8, the second layer of bamboo strips 9, and the third layer of bamboo strips 10 have the same structure.

[0022] The first layer of bamboo strip curtain 8, the second layer of bamboo strip curtain 9, and the third layer of bamboo strip curtain 10 are alternately wrapped around the inner lining layer until the thickness of the wrapping reaches the thickness required for the DN600 pipe.

[0023] The A bamboo strip is 200mm long, 5mm wide, and 2mm thick, while the B bamboo strip is 120mm long, 5mm wide, and 2mm thick.

[0024] The first layer of bamboo strip curtain 8, the second layer of bamboo strip curtain 9, and the third layer of bamboo strip curtain 10 are bonded together by adhesive.

[0025] The inner lining layer 1 and the first layer of bamboo strips 8 are bonded together by adhesive.

[0026] The bamboo strips (bamboo strip 4 and bamboo strip 5) of the first layer of bamboo curtain 8 are parallel to the axis of the composite pipe.

[0027] Example 2: Figs. 1-5 As shown, a DN600 bamboo-wound composite pipe includes an inner lining layer 1, a structural layer 2 disposed on the inner lining layer 1, and a protective layer 3 disposed outside the structural layer 2. The structural layer includes a first layer of bamboo strips 8 wound on the inner lining layer. The first layer of bamboo strips 8 includes bamboo strips A 4 and B 5, which are connected sequentially by weaving thread 7. The lengths of bamboo strips A 4 and B 5 are different. The first layer of bamboo strips 8 intersects with each other. A second layer of bamboo strips 9 is wound around the joints of the first layer of bamboo strips 8. The second layer of bamboo strips 9 intersects with each other. A third layer of bamboo strips 10 is obliquely wound on the second layer of bamboo strips 9. The third layer of bamboo strips 10 intersects with each other. The first layer of bamboo strips 8, the second layer of bamboo strips 9, and the third layer of bamboo strips 10 have the same structure.

[0028] The A bamboo strip is 200mm long, 5mm wide, and 2mm thick, while the B bamboo strip is 120mm long, 5mm wide, and 2mm thick.

[0029] The first layer of bamboo strip curtain 8, the second layer of bamboo strip curtain 9, and the third layer of bamboo strip curtain 10 are bonded together by adhesive.

[0030] The inner lining layer 1 and the first layer of bamboo strips 8 are bonded together by adhesive.

[0031] The bamboo strips (bamboo strip 4 and bamboo strip 5) of the first layer of bamboo curtain 8 are parallel to the axis of the composite pipe.

[0032] A fourth bamboo curtain, inclined in the opposite direction to the third bamboo curtain, can be added to the third bamboo curtain.

[0033] The third and fourth bamboo strip curtains form a ring-shaped mesh structure, increasing the strength of the structural layers.

[0034] The fourth bamboo curtain has the same structure as the third layer of bamboo curtain, and the fourth bamboo curtains are crossed together.

[0035] The first layer of bamboo curtain, the second layer of bamboo curtain, the third layer of bamboo curtain and the fourth bamboo curtain are alternately wound on the inner lining layer in sequence until the thickness of the winding reaches the required thickness of the DN600 pipe.

[0036] The structural layer of embodiment 1 is three layers alternately wound on the inner lining layer, and the structural layer of embodiment 2 is four layers alternately wound on the inner lining layer. Compared with the prior art, the bamboo curtain structure of the technical solution is similar to the mat at home, but the A bamboo strip and the B bamboo strip of the bamboo curtain of the present application are connected in sequence by the weaving line, and there are a plurality of fork holes 6 on both sides of the thick bamboo curtain, which facilitates the crossing of the bamboo curtain. On the one hand, the size of the A bamboo strip and the B bamboo strip is small, and the bamboo curtain is rolled together for production and transportation, and on the other hand, the bamboo curtain is crossed together and the structural strength is large after curing by the adhesive; the butt joint of the first layer of bamboo curtain is wound with the second layer of bamboo curtain, which increases the structural strength of the cross joint, the second layer of bamboo curtain is inclinedly wound with the third layer of bamboo curtain, and the structural layer is formed by three layers of winding in sequence. The combination of winding methods makes the pipe material better maintain its shape and size when subjected to external force. This not only helps to ensure the normal operation of the pipeline system, but also prolongs the service life of the pipe material.

Claims

1. A DN600 bamboo filament wound composite pipe comprising an inner liner, a structural layer disposed on the inner liner, and a protective layer disposed outwardly of the structural layer, characterized in that: The structure layer comprises a first layer of bamboo splint curtain wound on the inner liner, the first layer of bamboo splint curtain comprises A bamboo strips and B bamboo strips, the A bamboo strips and the B bamboo strips are connected in turn by weaving threads, the A bamboo strips and the B bamboo strips are different in length, the first layer of bamboo splint curtains are crossed together, the abutting places of the first layer of bamboo splint curtains are wound with a second layer of bamboo splint curtain, the second layer of bamboo splint curtains are crossed together, the second layer of bamboo splint curtains are obliquely wound with a third layer of bamboo splint curtain, the third layer of bamboo splint curtains are crossed together, the first layer of bamboo splint curtain, the second layer of bamboo splint curtain and the third layer of bamboo splint curtain are the same in structure.

2. The DN600 bamboo filament-wound composite pipe according to claim 1, characterized in that: The first layer of bamboo splint curtain, the second layer of bamboo splint curtain and the third layer of bamboo splint curtain are alternately wound on the inner liner in turn.

3. The DN600 bamboo filament-wound composite pipe according to claim 2, characterized in that: The A bamboo strips are 200 mm long, 5 mm wide and 2 mm thick, and the B bamboo strips are 120 mm long, 5 mm wide and 2 mm thick.

4. The DN600 bamboo filament-wound composite pipe according to claim 3, characterized in that: The first layer of bamboo splint curtain, the second layer of bamboo splint curtain and the third layer of bamboo splint curtain are solidly adhered by an adhesive.

5. The DN600 bamboo filament-wound composite pipe according to claim 4, characterized in that: The inner liner and the first layer of bamboo splint curtain are solidly adhered by an adhesive.

6. The DN600 bamboo filament-wound composite pipe according to claim 5, characterized in that: The bamboo strips of the first layer of bamboo splint curtain are parallel to the axial direction of the composite pipe.

7. The DN600 bamboo filament-wound composite pipe according to claim 1, wherein: The third layer of bamboo splint curtain is provided with a fourth layer of bamboo splint curtain obliquely in the opposite direction of the third layer of bamboo splint curtain.

8. The DN600 bamboo filament-wound composite pipe of claim 1, wherein: The third layer of bamboo splint curtain and the fourth layer of bamboo splint curtain form a ring-shaped net structure.

9. The DN600 bamboo filament-wound composite pipe according to claim 8, characterized in that: The fourth layer of bamboo splint curtain is the same in structure as the third layer of bamboo splint curtain, and the fourth layer of bamboo splint curtains are crossed together.

10. The DN600 bamboo filament-wound composite pipe according to claim 1, wherein: The first layer of bamboo splint curtain, the second layer of bamboo splint curtain, the third layer of bamboo splint curtain and the fourth layer of bamboo splint curtain are alternately wound on the inner liner in turn.

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