FRPP double-wall corrugated pipe

Abstract

The utility model discloses an FRPP (Fiber Reinforced Polypropylene) double-wall corrugated pipe in the technical field of corrugated pipes, which is reasonable in structure, PP (Polypropylene) sleeves and strips are sequentially arranged on the outer wall of an outer-wall corrugated pipe, FRPP glass fiber reinforcing ribs are arranged between the PP sleeves, and the whole corrugated pipe is made of FRPP materials. The strength and rigidity of the double-wall corrugated pipe body are effectively improved, and the situation that durability is affected due to the fact that the strength and rigidity of the double-wall corrugated pipe material body are weak is reduced, the inner pipe in the outer-wall corrugated pipe is provided with the multiple strengthening layers, on one hand, the strength and toughness of the inner pipe are improved, and on the other hand, the strength and rigidity of the outer-wall corrugated pipe body are improved; on the other hand, an antibacterial and anti-corrosion effect is adopted for the inner pipe, the situation that the inner pipe is corroded by bacteria caused by daily conveyed fluid is avoided as much as possible, the strength and rigidity of the inner layer and the outer layer of the FRPP double-wall corrugated pipe are effectively enhanced, and the service life of the FRPP double-wall corrugated pipe is prolonged. And the durability of the FRPP double-wall corrugated pipe is also effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipes, in particular to a FRPP double-wall corrugated pipe. Background Art

[0002] Double-walled corrugated pipe technology is a technology that uses a corrugated pipe structure composed of two layers of pipe walls for heat transfer, mass transfer and fluid transportation. Double-walled corrugated pipes usually include two pipe walls, the inner layer and the outer layer, which are connected by corrugations to form a series of wave-shaped concave and convex structures. This design can increase the strength and stability of the pipeline, and also increase the flexibility and bendability of the pipeline. At present, the double-walled corrugated pipe is made of HDPE material, which is relatively weak in strength and rigidity, and is prone to damage. At the same time, double-walled corrugated pipes usually adopt the double-layer effect of inner and outer walls. When the outer wall is damaged, the inner wall can continue to ensure the smooth flow of the pipeline, but the overall material of the inner wall is different from the outer wall. When the outer wall of the double-walled corrugated pipe has problems, the pressure and strength of the inner wall gradually weaken, causing damage. At the same time, the inner wall is directly in contact with the fluid. The presence of corrosive or other substances in the fluid will cause direct damage to the inner wall, greatly damaging the strength of the inner wall, thereby reducing the durability of the double-walled corrugated pipe and affecting the use effect of the double-walled corrugated pipe.

[0003] Therefore, it is necessary to develop a FRPP double-wall corrugated pipe. Utility Model Content

[0004] The purpose of the utility model is to provide a FRPP double-wall corrugated pipe to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a FRPP double-wall corrugated pipe, comprising an outer wall corrugated pipe, the outer wall of the outer wall corrugated pipe is provided with a PP sleeve, and FRPP glass fiber reinforcement ribs are provided between opposite sides of the PP sleeve;

[0006] An inner tube is installed on the inner wall of the outer wall corrugated tube.

[0007] Preferably, a strip is provided on one side of the outer wall of the outer wall corrugated tube, and a hollow groove is opened at the center position of the surface of the PP sleeve.

[0008] Preferably, the inner tube comprises a carbon fiber composite layer, and a polypropylene layer is provided on the lower surface of the carbon fiber composite layer.

[0009] Preferably, a polysiloxane resin layer is disposed on the lower surface of the polypropylene layer, and a polyurethane waterproof layer is disposed on the lower surface of the polysiloxane resin layer.

[0010] Preferably, a nano zinc oxide layer is provided on the lower surface of the polyurethane waterproof layer.

[0011] Preferably, a sealing sleeve is installed at one end of the inner tube, and a sealing groove is provided on one side of the outer wall of the inner tube.

[0012] Preferably, the sealing groove is located inside the sealing sleeve, and the inner wall of the sealing sleeve is slidably connected to the outside of the sealing groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By sequentially arranging PP sleeves and strips on the outer wall of the outer wall corrugated pipe, and arranging FRPP glass fiber reinforcement ribs between the PP sleeves, and adopting FRPP material according to the overall material, the strength and rigidity of the double-wall corrugated pipe body are effectively improved, reducing the situation where the strength and rigidity of the double-wall corrugated pipe material body are weak and the durability is affected.

[0015] By adopting multiple reinforcement layers for the inner tube inside the outer wall corrugated pipe, on the one hand, the strength and toughness of the inner tube are increased to prevent deformation and damage caused by friction or collision. On the other hand, the inner tube is given an antibacterial and anti-corrosion effect to avoid bacterial corrosion caused by daily conveying fluids. The strength and rigidity of the inner and outer layers of the FRPP double-wall corrugated pipe are effectively enhanced, and the durability of the FRPP double-wall corrugated pipe is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic cross-sectional view of the overall structure provided by the utility model;

[0017] Figure 2 A three-dimensional schematic diagram of the outer wall corrugated pipe structure provided by the utility model;

[0018] Figure 3 This is an enlarged schematic diagram of the local structure of the inner tube provided by the utility model;

[0019] Figure 4 This is a partial structural decomposition schematic diagram provided by the utility model.

[0020] In the figure: 1. outer wall corrugated pipe; 2. PP sleeve; 3. FRPP glass fiber reinforcement rib; 4. strip; 5. hollow groove; 6. inner tube; 601. carbon fiber composite layer; 602. polypropylene layer; 603. polysiloxane resin layer; 604. polyurethane waterproof layer; 605. nano zinc oxide layer; 7. sealing sleeve; 8. sealing groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides the following technical solutions: a FRPP double-wall corrugated pipe, please refer to Figure 1-4 , including an outer wall corrugated tube 1, a PP sleeve 2 is arranged on the outer wall of the outer wall corrugated tube 1, a FRPP glass fiber reinforcement rib 3 is arranged between the opposite sides of the PP sleeve 2, a strip 4 is arranged on one side of the outer wall of the outer wall corrugated tube 1, and a hollow groove 5 is opened at the center position of the surface of the PP sleeve 2. The PP sleeve 2 and the strip 4 are arranged on the outer wall of the outer wall corrugated tube 1 in sequence, and the FRPP glass fiber reinforcement rib 3 is arranged between the PP sleeve 2. According to the overall material, FRPP material is adopted, which effectively improves the strength and rigidity of the double-wall corrugated tube body, and reduces the situation where the strength and rigidity of the double-wall corrugated tube material body are weak and affect the durability;

[0023] The inner wall of the outer wall corrugated tube 1 is installed with an inner tube 6, and the inner tube 6 includes a carbon fiber composite layer 601, and a polypropylene layer 602 is arranged on the lower surface of the carbon fiber composite layer 601, and a polysiloxane resin layer 603 is arranged on the lower surface of the polysiloxane resin layer 603, and a polyurethane waterproof layer 604 is arranged on the lower surface of the polysiloxane resin layer 603, and a nano zinc oxide layer 605 is arranged on the lower surface of the polyurethane waterproof layer 604. The inner tube 6 in the outer wall corrugated tube 1 adopts a multi-layer reinforcement layer, and the carbon fiber composite layer 601 has the functions of high temperature resistance, abrasion resistance and corrosion resistance to prevent the inner tube 6 from being easily damaged by high temperature, friction and corrosion. The polypropylene layer 602 has the function of tear resistance to enhance the tear resistance of the inner tube 6 and reduce the phenomenon of easy breakage. The polysiloxane resin layer 603 has the function of It has a good high hardness effect, and can enhance the hardness of the inner tube 6. The polyurethane waterproof layer 604 has the characteristics of high strength, large elongation, and good water resistance, and can be waterproofed to reduce the inner tube 6 from being easily permeated with water vapor. The nano zinc oxide layer 605 has the effects of antibacterial, antibacterial, odor-removing, mildew-proofing, and anti-oxidation, and can be used to treat the inner tube 6 with antibacterial, antibacterial, and anti-oxidation to prevent water stains or corrosive substances from corroding and oxidizing the inner tube 6. By taking enhanced protection for the inner tube 6 on the outer wall corrugated tube 1, on the one hand, the strength and toughness of the inner tube 6 are increased to prevent deformation and damage caused by friction or collision. On the other hand, the inner tube 6 has an antibacterial and anti-corrosion effect to avoid the inner tube 6 from being corroded by bacteria in daily conveying fluids as much as possible.

[0024] A sealing sleeve 7 is installed at one end of the inner tube 6, and a sealing groove 8 is provided on one side of the outer wall of the inner tube 6. The sealing groove 8 is located inside the sealing sleeve 7, and the inner wall of the sealing sleeve 7 is slidably connected to the outside of the sealing groove 8. The sealing groove 8 is opened at the connection of the inner tube 6, and the access end is sealed by the sealing sleeve 7 to avoid leakage at the gap generated when the two tubes of the double-wall corrugated pipe are connected.

[0025] Working principle: When using the utility model, a PP sleeve 2 and a strip 4 are sequentially arranged on the outer wall of the outer wall corrugated tube 1, and a FRPP glass fiber reinforcement rib 3 is arranged between the PP sleeve 2. According to the overall material, FRPP material is adopted, which effectively improves the strength and rigidity of the double-wall corrugated tube body, and reduces the situation that the double-wall corrugated tube material body strength and rigidity are weak and affect the durability. By adopting a multi-layer reinforcement layer for the inner tube 6 in the outer wall corrugated tube 1, the carbon fiber composite layer 601 has the functions of high temperature resistance, friction resistance and corrosion resistance, so as to prevent the inner tube 6 from being easily damaged by high temperature, friction and corrosion, and the polypropylene layer 602 has the function of tear resistance, which enhances the tear resistance of the inner tube 6 and reduces the phenomenon of easy breakage. The polysiloxane resin layer 603 has the function of good high hardness, which can enhance the hardness of the inner tube 6. The polyurethane waterproof layer 604 has the characteristics of high strength, large elongation and good water resistance, which can be used for the inner tube 6 is waterproofed to reduce the possibility of water vapor permeation into the inner tube 6. The nano zinc oxide layer 605 has the effects of antibacterial, anti-odor, mildew-proof and anti-oxidation. The inner tube 6 can be treated with antibacterial and anti-oxidation to prevent water stains or corrosive substances from corroding and oxidizing the inner tube 6. By taking enhanced protection for the inner tube 6 on the outer wall corrugated tube 1, on the one hand, the strength and toughness of the inner tube 6 are increased to prevent deformation and damage caused by friction or collision. On the other hand, the inner tube 6 is treated with antibacterial and anti-corrosion effects to avoid the inner tube 6 from being corroded by bacteria in daily conveying fluids. By opening a sealing groove 8 at the connection of the inner tube 6 and sealing the access end with a sealing sleeve 7, leakage is avoided at the gap generated when the two tubes of the double-wall corrugated pipe are connected. The strength and rigidity of the inner and outer layers of the FRPP double-wall corrugated pipe are effectively enhanced, and the durability of the FRPP double-wall corrugated pipe is effectively improved.

[0026] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A FRPP double-wall corrugated pipe, comprising an outer wall corrugated pipe (1), characterized in that: The outer wall of the outer wall corrugated pipe (1) is provided with a PP sleeve (2), and FRPP glass fiber reinforcement ribs (3) are provided between opposite sides of the PP sleeve (2); An inner tube (6) is installed on the inner wall of the outer wall corrugated tube (1), the inner tube (6) comprises a carbon fiber composite layer (601), a polypropylene layer (602) is provided on the lower surface of the carbon fiber composite layer (601), a polysiloxane resin layer (603) is provided on the lower surface of the polysiloxane resin layer (603), a polyurethane waterproof layer (604) is provided on the lower surface of the polysiloxane resin layer (603), and a nano zinc oxide layer (605) is provided on the lower surface of the polyurethane waterproof layer (604), a sealing sleeve (7) is installed on one end of the inner tube (6), a sealing groove (8) is provided on one side of the outer wall of the inner tube (6), the sealing groove (8) is located inside the sealing sleeve (7), and the inner wall of the sealing sleeve (7) is slidably connected to the outside of the sealing groove (8).

2. The FRPP double-wall corrugated pipe according to claim 1, characterized in that: A strip (4) is provided on one side of the outer wall of the outer wall corrugated pipe (1), and a hollow groove (5) is provided at the center of the surface of the PP sleeve (2).

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