Shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe

Abstract

The utility model relates to the technical field of glass fiber reinforced plastic composite pipes, in particular to a shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe which comprises a lining layer, a core mold arranged on the outer wall of the lining layer, a buffer layer arranged on the outer wall of the core mold, a plurality of triangular grooves formed in the buffer layer, and a transition layer arranged on the outer wall of each triangular groove. A structural layer is arranged on the outer wall of the transition layer, and a plurality of honeycomb grooves are formed in the structural layer. By utilizing the characteristics of the triangular grooves and the honeycomb grooves, energy can be dispersed and absorbed through the unique geometrical shapes of the triangular grooves and the honeycomb grooves, so that the influence of vibration on the structure is reduced, the anti-seismic property is improved, the honeycomb structure is very high in strength in the thickness direction, and due to the existence of an air layer in the structure, the weight is relatively light; therefore, shock resistance and compression resistance of the glass fiber reinforced plastic composite pipe are improved, and damage caused by external impact is prevented.

Description

Technical Field

[0001] The utility model relates to the field of glass fiber reinforced plastic composite pipes, in particular to a shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe. Background Art

[0002] FRP pipe, also known as glass fiber wound sand-filled pipe, mainly uses glass fiber and its products as reinforcing materials, high molecular weight unsaturated polyester resin, epoxy resin and other basic materials, and quartz sand, calcium carbonate and other inorganic non-metallic granular materials as fillers as the main raw materials.

[0003] Due to external uncertainties, existing FRP composite pipes may be deformed or damaged by external impact during use, resulting in unsatisfactory pressure resistance and difficulty in resisting large external pressure, affecting the safety of the entire composite pipe. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a seismic and pressure-resistant glass fiber reinforced plastic composite pipe, comprising an inner lining layer, the outer wall of the inner lining layer is provided with a core mold, the outer wall of the core mold is provided with a buffer layer, the interior of the buffer layer is provided with a triangular groove, and the number of triangular grooves is multiple, the outer wall of the triangular groove is provided with a transition layer, the outer wall of the transition layer is provided with a structural layer, the interior of the structural layer is provided with a honeycomb groove, and the number of honeycomb grooves is multiple.

[0006] As a further description of the above technical solution:

[0007] The plurality of triangular grooves all pass through both ends of the buffer layer, and the plurality of honeycomb grooves all pass through both ends of the structural layer.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the structural layer is provided with a heat insulation layer, the outer wall of the heat insulation layer is provided with a heat dissipation layer, the interior of the heat dissipation layer is provided with a guide groove, and the number of the guide grooves is multiple.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the heat dissipation layer is provided with a protective layer, and the outer wall of the protective layer is provided with a plurality of annular grooves.

[0012] As a further description of the above technical solution:

[0013] One end of the core mold is fixedly connected to a first clamping block, and the other end of the core mold is fixedly connected to a second clamping block. The inner diameter of the first clamping block is greater than the outer diameter of the second clamping block.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the protective layer is provided with heat dissipation holes, and there are a plurality of heat dissipation holes, and the plurality of heat dissipation holes are respectively connected to the plurality of guide grooves.

[0016] The utility model has the following beneficial effects:

[0017] 1. Set up the inner lining layer, which is also the most critical layer. It mainly plays the role of anti-seepage and anti-corrosion. Set up a buffer layer on the periphery of the core mold, and open multiple triangular grooves inside the buffer layer. The triangular structure is connected by three edges. The structure is complete and stable, so its compressive performance is stronger. Therefore, the stability of the triangle also makes it an ideal choice for earthquake-resistant structures. The transition layer is located between the inner lining layer and the structural layer, playing a connecting role. It is mainly composed of chopped strands of felt and resin to prevent the occurrence of capillary phenomena. The interior of the transition layer is opened with multiple honeycomb grooves. Its unique geometric shape can disperse and absorb energy, thereby reducing the impact of vibration on the structure and improving seismic performance. The honeycomb structure has high strength in the thickness direction, and due to the existence of the air layer in the structure, its weight is relatively light, thereby improving the seismic and compressive performance of the FRP composite pipe and preventing damage caused by external impact.

[0018] 2. The mechanical properties of the FRP composite pipe will decrease in a high temperature environment. An insulation layer is set on the outer wall of the structural layer to effectively prevent the FRP composite pipe from being affected by the external temperature. A heat dissipation layer is set. When the outside is exposed to the sun, the temperature generated can be discharged through the guide groove and the heat dissipation holes. At the same time, a first clamping block and a second clamping block are set. The inner diameter of the first clamping block is larger than the outer diameter of the second clamping block, which facilitates the docking of the two sections of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a seismic and pressure-resistant glass fiber reinforced plastic composite pipe proposed by the present invention from a first perspective;

[0020] Figure 2 This utility model proposes a shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe Figure 1 A magnified schematic diagram of the structure in the middle;

[0021] Figure 3 This is a schematic diagram of the internal structure of a seismic and pressure-resistant glass fiber reinforced plastic composite pipe proposed by the utility model;

[0022] Figure 4 This utility model proposes a shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe Figure 3 A magnified schematic diagram of the structure B in the middle.

[0023] Legend:

[0024] 1. Lining layer; 2. Core mold; 3. Buffer layer; 4. Triangular groove; 5. Transition layer; 6. Structural layer; 7. Honeycomb groove; 8. Thermal insulation layer; 9. Heat dissipation layer; 10. Guide groove; 11. Protective layer; 12. First clamping block; 13. Second clamping block; 14. Annular groove; 15. Heat dissipation hole. DETAILED DESCRIPTION

[0025] The present invention is further described below with reference to the accompanying drawings and specific embodiments to facilitate understanding of the present invention. The methods used in the present invention are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercially available products unless otherwise specified.

[0026] Reference Figure 1-4 The utility model provides a seismic and pressure-resistant glass fiber reinforced plastic composite pipe: it includes an inner lining layer 1, the inner lining layer 1 is mainly composed of resin, which plays the role of anti-corrosion and anti-seepage, the outer wall of the inner lining layer 1 is provided with a core mold 2, the outer wall of the core mold 2 is provided with a buffer layer 3, the interior of the buffer layer 3 is provided with a triangular groove 4, and the number of the triangular grooves 4 is multiple, and the multiple triangular grooves 4 all pass through the two ends of the buffer layer 3, the outer wall of the triangular groove 4 is provided with a transition layer 5, which is mainly composed of chopped strands and resin, the outer wall of the transition layer 5 is provided with a structural layer 6, the interior of the structural layer 6 is provided with a honeycomb groove 7, and the number of the honeycomb grooves 7 is multiple, and the multiple honeycomb grooves 7 all pass through the two ends of the structural layer 6.

[0027] An inner lining layer 1 is provided, which is also the most critical layer. It mainly plays the role of anti-seepage and anti-corrosion. A buffer layer 3 is provided on the periphery of the core mold 2, and a plurality of triangular grooves 4 are opened inside the buffer layer 3. The triangular structure is connected by three edges, and the structure is complete and stable, so its compressive performance is stronger. Therefore, the stability of the triangle also makes it an ideal choice in seismic resistant structures; the transition layer 5 is located between the inner lining layer 1 and the structural layer 6, playing a connecting role; it is mainly composed of chopped strands of felt and resin, which is used to prevent the occurrence of capillary phenomena, and a plurality of honeycomb grooves 7 are opened inside the transition layer 5, which can disperse and absorb energy through its unique geometric shape, thereby reducing the impact of vibration on the structure and improving seismic performance. The honeycomb structure has high strength in the thickness direction, and due to the existence of the air layer in the structure, its weight is relatively light, thereby improving the seismic and compressive performance of the FRP composite pipe and preventing damage caused by external impact.

[0028] The outer wall of structural layer 6 is provided with a thermal insulation layer 8. The mechanical properties of the FRP composite pipe degrade in high-temperature environments. Providing this thermal insulation layer 8 on the outer wall of structural layer 6 effectively protects the FRP composite pipe from the effects of external temperatures. A heat dissipation layer 9 is provided on the outer wall of thermal insulation layer 8. Multiple guide grooves 10 are provided within heat dissipation layer 9. When exposed to sunlight, the heat generated by the heat dissipation is dissipated through guide grooves 10 and heat dissipation holes 15.

[0029] The outer wall of the heat dissipation layer 9 is provided with a protective layer 11, which is composed of 100% resin. The protective layer 11 can prevent external objects from scratching the tube body. The outer wall of the protective layer 11 is provided with an annular groove 14, and there are multiple annular grooves 14. The outer wall of the protective layer 11 is provided with heat dissipation holes 15, and there are multiple heat dissipation holes 15. The multiple heat dissipation holes 15 are respectively connected to the multiple guide grooves 10.

[0030] One end of the core mold 2 is fixedly connected to a first clamping block 12, and the other end of the core mold 2 is fixedly connected to a second clamping block 13. The inner diameter of the first clamping block 12 is larger than the outer diameter of the second clamping block 13, which facilitates the docking of the two sections of the pipe body.

[0031] Working principle:

[0032] The inner lining layer 1 is set, which is also the most critical layer. It mainly plays the role of anti-seepage and anti-corrosion. A buffer layer 3 is set on the periphery of the core mold 2, and a plurality of triangular grooves 4 are opened inside the buffer layer 3. The triangular structure is connected by three edges, and the structure is complete and stable, so its compressive performance is stronger. Therefore, the stability of the triangle also makes it an ideal choice for earthquake-resistant structures. The transition layer 5 is located between the inner lining layer 1 and the structural layer 6, and plays a connecting role. It is mainly composed of chopped strands of felt and resin, which is used to prevent the occurrence of capillary phenomena. The interior of the transition layer 5 is provided with a plurality of honeycomb grooves 7, which can disperse and absorb energy through its unique geometric shape, thereby reducing the impact of vibration on the structure and improving earthquake resistance. The honeycomb structure has high strength in the thickness direction, and due to the existence of the air layer in the structure, its weight is relatively light, thereby improving the earthquake resistance and compression resistance of the glass fiber reinforced plastic composite pipe and preventing damage caused by external impact.

[0033] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] However, the above description is merely a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A seismic and pressure-resistant glass fiber reinforced plastic composite pipe, comprising an inner lining layer (1), characterized in that: The outer wall of the inner lining layer (1) is provided with a core mold (2), the outer wall of the core mold (2) is provided with a buffer layer (3), the interior of the buffer layer (3) is provided with a triangular groove (4), and the number of the triangular grooves (4) is plural, the outer wall of the triangular groove (4) is provided with a transition layer (5), the outer wall of the transition layer (5) is provided with a structural layer (6), the interior of the structural layer (6) is provided with a honeycomb groove (7), and the number of the honeycomb grooves (7) is plural.

2. The seismic and pressure-resistant glass fiber reinforced plastic composite pipe according to claim 1, characterized in that: The plurality of triangular grooves (4) all penetrate the two ends of the buffer layer (3), and the plurality of honeycomb grooves (7) all penetrate the two ends of the structural layer (6).

3. The seismic and pressure-resistant glass fiber reinforced plastic composite pipe according to claim 1, characterized in that: The outer wall of the structural layer (6) is provided with a heat insulation layer (8), the outer wall of the heat insulation layer (8) is provided with a heat dissipation layer (9), the interior of the heat dissipation layer (9) is provided with a guide groove (10), and the number of the guide grooves (10) is multiple.

4. The seismic and pressure-resistant glass fiber reinforced plastic composite pipe according to claim 3, characterized in that: The outer wall of the heat dissipation layer (9) is provided with a protective layer (11), and the outer wall of the protective layer (11) is provided with an annular groove (14), and the number of the annular grooves (14) is multiple.

5. The shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe according to claim 1, characterized in that: One end of the core mold (2) is fixedly connected to a first clamping block (12), and the other end of the core mold (2) is fixedly connected to a second clamping block (13); the inner diameter of the first clamping block (12) is greater than the outer diameter of the second clamping block (13).

6. The shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe according to claim 4, characterized in that: The outer wall of the protective layer (11) is provided with heat dissipation holes (15), and there are a plurality of heat dissipation holes (15), and the plurality of heat dissipation holes (15) are respectively connected to the plurality of guide grooves (10).

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