CN201293157Y

CN201293157Y - PE winded composite pipe

Info

Publication number: CN201293157Y
Application number: CNU2008201645935U
Authority: CN
Inventors: 冯金茂; 张传兴; 于进杰
Original assignee: Zhejiang Weixing New Building Materials Co Ltd
Current assignee: Zhejiang Weixing New Building Materials Co Ltd
Priority date: 2008-09-22
Filing date: 2008-09-22
Publication date: 2009-08-19
Anticipated expiration: 2018-09-22

Abstract

A PE winding composite pipe belongs to the technical field of plastics pipes. A pipe wall has three layers of composited structures and comprises a PE pipe wall inner layer and a PE pipe wall outer layer. The PE winding composite pipe is characterized in that a glass fibre reinforcement layer is compounded between the PE pipe wall inner layer and the PE pipe wall outer layer and wound on the outer surface of the PE pipe wall inner layer. The PE winding composite pipe has novel design, reasonable conception, simple production process, tight interlayer compounding and good integral compatibility, adopts alkali-free glass fiber winding as a middle composite layer, keeps the flexibility and the welding character of a PE pipeline, also enhances the compressive strength and improves the crack propagation capacity of pipelines so that the compressive strength of the pipelines with the same wall thickness is increased, and the application range of production is expanded. In addition, the utility model can reduce the thickness and save materials when being applied to composite pipes with common pressure.

Description

The PE coiled composite tube

Technical field

The utility model belongs to the plastic tube technical field, is specifically related to a kind of PE coiled composite tube.

Background technique

The PE pipeline has obtained extensive use because of advantages such as it connects reliably, easy construction, energy-conserving and environment-protective in fields such as feedwater, combustion gas, drainings.But find also that in use the PE strength of materials is lower, be only applicable to working pressure and be lower than 16 kilograms mesolow field,, can only take steel pipe or segmentation way of supplying water to be applied in high pressure fields such as high-floor feedwater, water power drainings.On the other hand, also just because the PE strength of materials is low, and the tube wall thickness of certain pressure grade is thicker, raw material accounting height is compared with like product such as steel pipe, and the heavy caliber pipe cost advantage is not obvious.

The model utility content

The utility model aims to provide a kind of PE coiled composite tube technological scheme, to remedy defectives such as withstand voltage low, the heavy caliber pipe cost height of PE pipeline, overcomes problems of the prior art.

Described PE coiled composite tube, its tube wall is a three-layer composite structure, comprise PE tube wall internal layer, PE tube wall skin, it is characterized in that the compound glass fiber reinforced layer that is provided with between PE tube wall internal layer, the PE tube wall skin, described glass fiber reinforced layer is twined and is arranged at PE tube wall inner layer outer surface.

Described PE coiled composite tube is characterized in that glass fiber reinforced layer adopts individual layer overlap joint spiral winding structure.

Described PE coiled composite tube is characterized in that glass fiber reinforced layer constitutes by having mesh-structured alkali-free glass fibre band winding.

Above-mentioned PE coiled composite tube material modern design, reasonable idea, adopt alkali-free glass fibre to twine as middle composite bed, production technology is simple, interlayer is compound closely, Total tune is good, in the time of the flexibility of maintenance PE pipeline, weldability, strengthens the anti-crack propagation ability of compressive strength and raising pipeline, make the compressive strength acquisition lifting of equal wall thickness pipeline, the suitable application area of expansion product, the composite pipe that is applied to usual pressure can reduce thin and thick, save material.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model perspective view.

Among the figure: 1-PE tube wall skin, 2-glass fiber reinforced layer, 3-PE tube wall internal layer.

Embodiment

Now in conjunction with Figure of description, describe embodiment of the present utility model in detail: as shown be the PE coiled composite tube, its tube wall is a three-layer composite structure, comprise PE tube wall internal layer 3, PE tube wall skin 1, the compound glass fiber reinforced layer 2 that is provided with between PE tube wall internal layer 3, the PE tube wall skin 1, described glass fiber reinforced layer 2 is by having mesh-structured glass fiber tape, adopting the winding of individual layer overlap joint spiral winding structure to be arranged at PE tube wall internal layer 3 outer surfaces.Owing to have mesh-structured alkali-free glass fibre band, PE tube wall internal layer 3, PE tube wall skin 1 can see through mesh and combine, not only do not need adhesive, but also guaranteed that PE tube wall internal layer 3, PE tube wall outer 1 and glass fiber reinforced layer 2 are combined into an integral body, stratification can not occur; In addition, glass fiber reinforced layer 2 adopts individual layer overlap joint spiral winding structure, can pass the mesh of glass fiber tape directly fixes the lap-joint of two glass fiber tapes at the PE of lap-joint tube wall internal layer 3, PE tube wall skin 1, no longer need to use other specific process fixing glass fiber band, simplified production technology, can enhance productivity; Because the humidification of glass fiber tape, the compressive strength of equal wall thickness pipeline will obtain to promote, and can be applied to longer distance, the more conveying of high pressure, will be thinner and be applied to the tube wall of the composite pipe of usual pressure than common pipe, the saving material; Can improve the anti-crack propagation ability of pipeline, glass fiber reinforced layer 2 forms an integral body with PE tube wall internal layer 3, PE tube wall outer 1, when crack propagation when the glass fiber reinforced layer 2 because the intensity of glass fiber tape is much larger than the intensity of PE base material, crackle will be terminated; Described PE coiled composite tube has kept the flexibility of PE pipeline when promoting physical property, be beneficial to laying, can be applied to non-excavation, has also kept the welding performance of PE pipeline, is easy to install, and construction cost is low.

Claims

1.PE coiled composite tube, its tube wall is a three-layer composite structure, comprise PE tube wall internal layer (3), PE tube wall skin (1), it is characterized in that the compound glass fiber reinforced layer (2) that is provided with between PE tube wall internal layer (3), the PE tube wall skin (1), described glass fiber reinforced layer (2) is twined and is arranged at PE tube wall internal layer (3) outer surface.

2. PE coiled composite tube as claimed in claim 1 is characterized in that glass fiber reinforced layer (2) adopts individual layer overlap joint spiral winding structure.

3. PE coiled composite tube as claimed in claim 1 is characterized in that glass fiber reinforced layer (2) constitutes by having mesh-structured alkali-free glass fibre band winding.