CN212745375U - Composite fiber pipe - Google Patents

Abstract

The utility model provides a composite fiber pipe, which comprises a pipe body, the body includes from inside to outside arrange in proper order and a body coupling in impervious anticorrosive coating, enhancement layer group and outer impervious anticorrosive coating, the internal surface of interior impervious anticorrosive coating is the smooth surface, it includes internal diameter enhancement layer, axial enhancement layer and hoop enhancement layer to strengthen the layer group. Through setting up the enhancement bed set, not only can greatly promote the axis and the radial strength of composite fiber pipe, be difficult for appearing the layering moreover when the temperature difference changes greatly and receives external force impact, radial connectivity is relatively better, and life is higher relatively, and further, still include the outer radial enhancement layer in the enhancement bed set, the axial enhancement layer or the hoop enhancement layer is held the outer radial enhancement layer with between the inner radial enhancement layer, the effect is better like this.

Description

Composite fiber pipe

Technical Field

The utility model relates to a pipe fitting, especially a composite fiber pipe.

Background

In municipal works such as water supply, drainage, communication, electric power and the like, pipelines such as water pipes or cable sheathing pipes are often used, wherein the cable sheathing pipes are usually composite fiber pipes and are mainly used for protecting communication cables or power transmission lines buried underground.

The intensity of current composite fiber pipe is lower relatively, receives the easy fracture deformation of external force extrusion for a long time, and easy damage is located its inside communication cable or transmission line, and chinese utility model patent that the bulletin number is CN208797517U discloses well power cable protective sleeve, and its essence also is a composite fiber pipe, including the protective sleeve body, the protective sleeve body includes basic unit, interior rib reinforcing winding layer and the outer metal level that sets gradually from inside to outside, evenly distributed has the strengthening rib just on the inside and outside wall of outer metal level the strengthening rib set up in the axial direction of outer metal level, the elastic layer is put in order to reduce external force and gives on the outer metal level the impact of outer metal level. This cable sheathing pipe though can increase the intensity of pipe to a certain extent, its radial connectivity is poor nevertheless, and when the temperature difference change is big and receive external force to strike, the easy layering of pipe wall influences life.

In addition, current composite fiber pipe is under 0.1 MPA's water pressure, and the pipe wall can appear infiltration, the water leakage phenomenon, can not be arranged in engineering such as water supply or drainage, and the inner wall of current composite fiber pipe is comparatively crude usually, fluffs easily when interlude cable and forms glass fiber thorn, and then harms the protective layer of cable, and when it was used for the drainage, phenomena such as long grass, root resistance, long silt appear easily in the pipeline inner wall, influences the circulation of water.

In view of the above, the applicant has made an intensive study on the structure of the composite fiber tube, and has made this proposal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a composite fiber pipe that intensity and life are higher relatively.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a composite fiber pipe, includes the body, the body includes from inside to outside arranges in proper order and a body coupling's interior impervious anticorrosive coating, enhancement layer group and outer impervious anticorrosive coating, the internal surface of interior impervious anticorrosive coating is the smooth surface, it includes internal diameter enhancement layer, axial enhancement layer and hoop enhancement layer to strengthen the layer group.

As an improvement of the present invention, the reinforcement layer group further includes an outer radial reinforcement layer, the axial reinforcement layer and/or the hoop reinforcement layer is held between the outer radial reinforcement layer and the inner radial reinforcement layer.

As an improvement of the utility model, the structure of the inner radial reinforced layer is the same as that of the outer radial reinforced layer, the structure of the inner anti-permeability anticorrosive coating is the same as that of the outer anti-permeability anticorrosive coating.

As an improvement of the utility model, the inner anti-permeability anticorrosive coating and the outer anti-permeability anticorrosive coating are epoxy layers.

As an improvement of the utility model, the inner radial enhancement layer with the outer radial enhancement layer all includes chopped strand mat and cladding chopped strand mat epoxy layer, the outside or the inside perk in one end or the both ends of the part chopped strand on the chopped strand mat.

As an improvement of the utility model, the axial enhancement layer includes that a plurality of continuous glass fiber that are the straight line and cladding simultaneously are each continuous glass fiber's epoxy layer, each the mutual parallel arrangement of continuous glass fiber just is ring shape and arranges.

As an improvement of the present invention, the hoop reinforcement layer includes a continuous glass fiber and a coating layer spirally wound on the axial reinforcement layer.

As an improvement of the utility model, the hoop enhancement layer has more than two layers.

As an improvement of the utility model, the anti-seepage anticorrosive coating is covered with the rib net layer, and the rib net layer is connected with the anti-seepage anticorrosive coating.

As an improvement of the utility model, the ribbed net layer comprises a circular glass fiber net and a cladding glass fiber epoxy resin layer.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

1. strengthen the bed set through setting up, and strengthen the bed set and include internal diameter enhancement layer, axial enhancement layer and hoop enhancement layer, not only can greatly promote the axis and the radial strength of composite fiber pipe, be difficult for appearing the layering moreover when the temperature difference changes greatly and receives external force to strike, radial connectivity is better relatively, and life is higher relatively.

2. The axial reinforcing layer and/or the circumferential reinforcing layer are clamped between the outer radial reinforcing layer and the inner radial reinforcing layer, and the comprehensive performance is better.

3. Because the internal surface of interior impervious anticorrosive coating is the smooth surface, is difficult for fluffing formation glass fiber thorn when interlude cable, and it is comparatively smooth and easy to alternate the cable, and when it was used for the drainage, the pipeline inner wall was difficult for appearing growing grass, root and hinders, accumulate phenomenons such as silt, and the circulation of water is comparatively smooth and easy.

4. Because each layer all has the cladding to have epoxy, through epoxy body coupling between adjacent two-layer, the cohesion is higher relatively, and can bear great water pressure and can not appear seeping water or the phenomenon of leaking, can be used for supplying water and drainage engineering, and the usage is comparatively various.

Drawings

Fig. 1 is a schematic structural diagram of the composite fiber tube of the present invention.

The designations in the figures correspond to the following:

10-inner impervious anticorrosive coating; 20-an inner radial reinforcement layer;

30-an axial reinforcement layer; 40-a circumferential reinforcing layer;

50-an outer radial reinforcement layer; 60-outer impervious anticorrosive coating;

70-ribbed net layer.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the composite fiber pipe provided in this embodiment includes a pipe body, the cross section of the inner and outer side walls of the pipe body is circular, one side of the pipe body facing the central axis thereof is an inner side, and the other side is an outer side, the pipe body includes an inner impervious anticorrosion layer 10, a reinforcement layer group and an outer impervious anticorrosion layer 60, which are sequentially arranged from inside to outside and integrally connected, wherein the reinforcement layer group includes an inner radial reinforcement layer 20, an axial reinforcement layer 30 and a hoop reinforcement layer 40, the arrangement order of the inner radial reinforcement layer 20, the axial reinforcement layer 30 and the hoop reinforcement layer 40 can be selected according to actual requirements, preferably, the reinforcement layer group further includes an outer radial reinforcement layer 50, the axial reinforcement layer 30 and/or the hoop reinforcement layer 40 are clamped between the outer radial reinforcement layer 50 and the inner radial reinforcement layer 20, specifically in this embodiment, the inner impervious anticorrosion layer 10, the axial direction reinforcing layer 30, the hoop direction reinforcing layer 40 and the outer radial direction reinforcing layer 50 are arranged in sequence from the inside to the outside. Further, the composite fiber pipe that this embodiment provided still includes that the cover is established on outer impervious anticorrosive coating 60 and with outer impervious anticorrosive coating 60 an organic whole be connected add muscle net layer 70, add muscle net layer 70 and not only help improving the intensity of body, can form comparatively unique visual effect moreover.

The inner impervious anticorrosive layer 10 and the outer impervious anticorrosive layer 60 have the same structure, and are both epoxy resin layers, of course, various additives can be added into the epoxy resin layers to improve the impervious and corrosion resistant properties, and the specific additives can be conventional additives, which are not important in the embodiment, and are not described in detail here, and of course, any additive may not be added. The internal surface of interior impervious anticorrosive coating 10 is the smooth surface, and the Mann's of this smooth surface coefficient of roughness is less than or equal to 0.008 to effectively ensure the smooth and easy nature of interlude cable, the rivers that also can guarantee simultaneously that the composite fiber pipe is used for when drainage are smooth and easy.

The inner radial reinforcing layer 20 and the outer radial reinforcing layer 50 have the same structure and both include chopped strand mats and epoxy resin layers coated with chopped strand mats, i.e., chopped strand mats are embedded in the epoxy resin layers. In addition, one end or both ends of a part of chopped fibers on the chopped fiber mat are raised outwards or inwards by 1-3mm, so that the radial strength of the pipe body is enhanced, during production, the end of the part of chopped fibers on the chopped fiber mat can be pulled up by using the viscosity of the epoxy resin, and certainly, the one end or both ends of the chopped fibers can also be raised outwards or inwards by using other modes such as static electricity or glue spraying, and the specific process is a conventional process, is not the key point of the embodiment, and is not detailed here again.

The axial reinforcement layer 30 includes a plurality of continuous glass fibers arranged in a straight line and an epoxy layer simultaneously covering each of the continuous glass fibers, i.e., the continuous glass fibers are embedded in the epoxy layer. The continuous glass fibers are arranged in parallel and in a circular ring shape, so that the axial strength of the pipe body is increased. In addition, two adjacent continuous glass fibers are preferably arranged closely. That is, in the axial direction reinforcing layer 30, a plurality of continuous glass fibers in a string shape are straightened and arranged in a circular ring shape, and adjacent two continuous glass fibers are not directly connected but filled with epoxy resin.

The hoop reinforcement layer 40 includes a continuous glass fiber spirally wound on the axial reinforcement layer 30 and an epoxy resin layer covering the continuous glass fiber. That is, in the hoop reinforcement layer 40, a continuous glass fiber in a rope shape is spirally wound. In production, the hoop reinforcement layer 40 is formed by dipping continuous glass fibers and then winding them around the axial reinforcement layer 30. It should be noted that the continuous glass fiber in the axial reinforcing layer 30 needs to be wound immediately after being laid, so as to ensure that the epoxy resin layers of the two layers can be fused together without being solidified to realize an integral connection. Preferably, the hoop reinforcement layer 40 has more than two layers, and at this time, the continuous glass fiber of the hoop reinforcement layer 40 located relatively on the outer side is wound on the hoop reinforcement layer 40 located relatively on the inner side, which helps to increase the wall thickness while increasing the strength, and of course, the wall thickness can also be controlled by the thickness of the continuous glass fiber.

The web layer 70 includes a circular glass fiber web and a glass fiber-coated epoxy layer, i.e., the glass fiber web is embedded in the epoxy layer. Through setting up glass fiber net, can effectively improve impact absorption ability, increase the absorption to natural disasters such as strong wind, earthquake and destroy the energy, effectively save glass fiber's quantity simultaneously under the condition of proof strength, help reduce cost.

According to the fiber pipe provided by the embodiment, the inner anti-seepage anticorrosive layer 10, the inner radial reinforcing layer 20, the axial reinforcing layer 30, the annular reinforcing layer 40, the outer radial reinforcing layer 50, the outer anti-seepage anticorrosive layer 60 and the reinforced net layer 70 are provided with epoxy resin layers, and the adjacent epoxy resin layers are fused with each other when not solidified to form a whole, so that the fiber pipe is strong in connectivity, has a service life of more than 50 years at the temperature of-40-70 ℃, can form a common three-dimensional structure by fibers on each layer, remarkably improves the strength and the ultimate bearing capacity of the pipeline, enhances the interface characteristic of the pipeline, and is not easy to deform.

The present invention is described in detail with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the above embodiments, and those skilled in the art can make various modifications to the present invention according to the prior art, for example, change the glass fiber in the above embodiments to carbon fiber or change the epoxy resin in the above embodiments to other types of resin, and these are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a composite fiber pipe, includes the body, its characterized in that, the body includes from inside to outside arrange in proper order and an organic whole connected interior impervious anticorrosive coating, enhancement layer group and outer impervious anticorrosive coating, the internal surface of interior impervious anticorrosive coating is the smooth surface, it includes interior radial enhancement layer, axial enhancement layer and hoop enhancement layer to strengthen the layer group.

2. The composite fiber tube of claim 1, wherein the reinforcement ply set further comprises an outer radial reinforcement ply, the axial reinforcement ply and/or the hoop reinforcement ply being sandwiched between the outer radial reinforcement ply and the inner radial reinforcement ply.

3. The composite fiber pipe of claim 2, wherein the inner and outer radial reinforcing layers are identical in structure, and the inner and outer barrier coatings are identical in structure.

4. The composite fiber pipe of claim 1 wherein both the inner and outer barrier and corrosion protection layers are epoxy layers.

5. The composite fiber tube of claim 3, wherein the inner radial reinforcement layer and the outer radial reinforcement layer each comprise a chopped strand mat and an epoxy layer coating the chopped strand mat, and one or both ends of a portion of chopped fibers on the chopped strand mat are turned outward or inward.

6. The composite fiber tube of claim 1, wherein the axial reinforcement layer comprises a plurality of continuous glass fibers arranged in a line and an epoxy layer simultaneously encapsulating each of the continuous glass fibers, the continuous glass fibers being arranged parallel to each other and in a circular array.

7. The composite fiber tube of claim 1, wherein the hoop reinforcement layer comprises continuous glass fibers helically wound around the axial reinforcement layer and an epoxy layer covering the continuous glass fibers.

8. The composite fiber tube of claim 7, wherein the hoop reinforcement layer has more than two layers.

9. The composite fiber pipe as claimed in any one of claims 1 to 8, further comprising a reinforced mesh layer sleeved on the outer anti-permeability and anti-corrosion layer and integrally connected with the outer anti-permeability and anti-corrosion layer.

10. The composite fiber tube of claim 9, wherein the web layer comprises a circular glass fiber web and an epoxy layer coating the glass fiber.

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