Multi-layer composite enhanced ultraviolet curing repair hose

Abstract

The utility model discloses a multi-layer composite enhanced ultraviolet curing repair hose which comprises an outer film, a resin film is arranged in the outer film, a first protection mechanism used for protecting the resin film is arranged in the outer film, and the first protection mechanism comprises a degradable inner film arranged in the outer film. The degradable inner film is made of polylactic acid and polycaprolactone materials. The first protection mechanism is arranged, a traditional inner film is replaced with the degradable inner film, the degradable inner film does not need to be withdrawn in a time-consuming and labor-consuming mode after the hose is cured by the ultraviolet lamp tube, the degradable inner film can be naturally degraded, a large amount of manpower and material resources can be saved, and the pipeline repairing speed can be increased.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet light curing repair hose technology, and in particular to a multi-layer composite reinforced ultraviolet light curing repair hose. Background Technology

[0002] Ultraviolet curing polymer (UV-CIPP) is a highly efficient pipe repair technology. When used with hoses made of special materials, it can repair areas that require rapid repair and are difficult to repair using traditional methods, such as urban centers, under busy roads, or ecologically sensitive areas.

[0003] The UV-curable repair hose consists of an inner layer, a reinforcing layer, and an outer layer. The inner layer protects the internal structure and prevents the reinforcing layers from sticking together and being squeezed during construction. Traditionally, the inner lining of the repair hose needs to be removed manually or mechanically after curing, which is a tedious, time-consuming, and labor-intensive process. First, the internal space of the pipe is usually quite narrow, making it difficult for workers to move around inside. Second, care must be taken to prevent the inner lining from tearing or abrading during mechanical pulling. To solve these problems, we have proposed this multi-layered composite reinforced UV-curable repair hose. Utility Model Content

[0004] The main purpose of this invention is to provide a multi-layer composite reinforced ultraviolet curing repair tube, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-layer composite reinforced UV-curable repair hose includes an outer membrane, a resin membrane inside the outer membrane, and a first protective mechanism inside the outer membrane for protecting the resin membrane. The first protective mechanism includes a biodegradable inner membrane disposed inside the outer membrane. The biodegradable inner membrane is made of polylactic acid and polycaprolactone. The sidewall of the biodegradable inner membrane is provided with a second protective mechanism for preventing damage to the hose.

[0007] Preferably, the second protective mechanism includes an explosion-proof layer disposed on the sidewall of the biodegradable inner membrane, the explosion-proof layer being made of polyimide material.

[0008] Preferably, the explosion-proof layer is provided with an explosion-proof mesh, which is made of aramid fiber material.

[0009] Preferably, the explosion-proof layer has a first anti-corrosion layer on its sidewall, which is made of epoxy coal tar coating.

[0010] Preferably, the outer membrane sidewall is provided with a second anti-corrosion layer, which is made of polyurethane anti-corrosion coating.

[0011] Preferably, the second anti-corrosion layer has a wear-resistant layer on its sidewall, the wear-resistant layer being made of polyurethane elastomer material.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This device is equipped with a first protective mechanism. The traditional inner membrane is replaced with a biodegradable inner membrane. After the hose is cured by the ultraviolet lamp, the biodegradable inner membrane does not need to be removed in a time-consuming and laborious manner, allowing it to degrade naturally. This can save a lot of manpower and resources and also improve the speed of pipeline repair.

[0014] 2. This device is equipped with a second protective mechanism, which can give the hose an explosion-proof function, so that when firecrackers are thrown into the sewer, the inside of the pipe far from the explosion point will not be damaged, thereby improving the practicality of the transfer.

[0015] 3. This device is equipped with an explosion-proof mesh made of aramid fiber material, which makes the explosion-proof layer more effective. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the multi-layer composite reinforced ultraviolet curing repair hose proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of the structure at point A;

[0018] Figure 3 This is a side view of the multi-layer composite reinforced ultraviolet curing repair hose proposed in this utility model.

[0019] In the diagram: 1 Outer membrane, 2 Resin membrane, 3 Biodegradable inner membrane, 4 Explosion-proof layer, 5 First anti-corrosion layer, 6 Second anti-corrosion layer, 7 Wear-resistant layer, 8 Explosion-proof mesh. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-3 As shown, the multi-layer composite reinforced ultraviolet curing repair hose includes an outer membrane 1, and a resin membrane 2 is provided inside the outer membrane 1. The outer membrane 1 and the resin membrane 2 are made of the same materials and are manufactured using the same process as the outer layer and reinforcing layer in existing conventional hoses.

[0022] The outer membrane 1 contains a first protective mechanism for protecting the resin membrane 2. The first protective mechanism includes a biodegradable inner membrane 3 disposed within the outer membrane 1. The biodegradable inner membrane 3 is made of polylactic acid and polycaprolactone. Polylactic acid (PLA) is a biodegradable thermoplastic polyester whose raw materials mainly come from renewable biomass resources, such as lactic acid obtained by fermenting starchy substances like corn and potatoes. In the natural environment, polylactic acid can be gradually degraded into carbon dioxide and water through hydrolysis and microbial action. Polycaprolactone (PCL) is a semi-crystalline polymer with good flexibility and processing performance. It is also a biodegradable material, and its degradation is mainly through the enzymatic reaction of microorganisms.

[0023] The biodegradable inner membrane 3 has a second protective mechanism on its sidewall to prevent damage to the hose. The second protective mechanism includes an explosion-proof layer 4 on the sidewall of the biodegradable inner membrane 3. The explosion-proof layer 4 is made of polyimide, a high-performance organic polymer material with excellent high-temperature resistance, flame retardancy, and mechanical properties. Moreover, polyimide is self-extinguishing and can quickly stop burning even when in contact with a flame, thus playing a flame-retardant role. During periods when mischievous children frequently throw firecrackers into sewer pipes, this can provide explosion-proof protection for the pipes and prevent damage to the hose after the biogas explodes and solidifies.

[0024] The explosion-proof layer 4 contains an explosion-proof mesh 8, which is made of aramid fiber. Aramid fiber has extremely high strength and modulus, with a strength 5-6 times that of steel wire and a modulus 2-3 times that of steel wire or glass fiber. It also has good toughness and performs excellently in terms of explosion resistance, able to withstand a certain degree of explosive impact without being easily damaged. At the same time, aramid fiber also has good thermal stability and flame retardancy. Its decomposition temperature is generally above 500℃, which can effectively prevent the spread of flames. The explosion-proof mesh 8 is coated on the inner layer of the hose in the form of a polyimide film or coating.

[0025] The explosion-proof layer 4 has a first anti-corrosion layer 5 on its side wall. The first anti-corrosion layer 5 is made of epoxy coal tar coating. Epoxy coal tar coating is a high-performance anti-corrosion coating. This coating has excellent resistance to chemical media corrosion and can resist the erosion of various chemical substances such as acids, alkalis, and salts. For example, in some chemical pipeline applications, it can effectively prevent the pipeline from being corroded by chemical raw materials. It can be applied by spraying or brushing.

[0026] The outer membrane 1 has a second anti-corrosion layer 6 on its side wall. The second anti-corrosion layer 6 is made of polyurethane anti-corrosion coating. Polyurethane anti-corrosion coating has good corrosion resistance, wear resistance and weather resistance. It has a good protective effect against a variety of corrosive media such as seawater and chemical reagents. For example, in the application of pipeline anti-corrosion in marine environment, polyurethane anti-corrosion coating can effectively prevent seawater from corroding the pipeline. It can be applied by spraying or brushing.

[0027] The second anti-corrosion layer 6 has a wear-resistant layer 7 on its side wall. The wear-resistant layer 7 is made of polyurethane elastomer material. Polyurethane elastomer has excellent wear resistance and can withstand the friction of external media such as soil and sand when used on the outside of the pipe repair hose. At the same time, it has good chemical corrosion resistance and has a certain tolerance to many chemicals such as acids, alkalis and salts. This makes it stable even in complex underground environments. The polyurethane elastomer can be coated on the outside of the hose by spraying or brushing.

[0028] It should be noted that this utility model is a multi-layer composite reinforced ultraviolet light curing repair tube. By replacing the traditional inner membrane with a biodegradable inner membrane 3, the user can remove the inner membrane after the tube has been cured by the ultraviolet lamp, allowing it to degrade naturally.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Multilayer composite reinforced ultraviolet light-cured repair hose comprising an outer membrane (1), characterized in that, The outer film (1) is internally provided with a resin film (2), the outer film (1) is internally provided with a first protection mechanism for protecting the resin film (2), the first protection mechanism comprises a degradable inner film (3) arranged in the outer film (1), the degradable inner film (3) is made of polylactic acid and polycaprolactone material, and the side wall of the degradable inner film (3) is provided with a second protection mechanism for preventing the hose from being damaged.

2. The multi-layer composite reinforced ultraviolet light cured repair hose of claim 1, wherein, The second protection mechanism comprises an anti-explosion layer (4) arranged on the side wall of the degradable inner film (3), and the anti-explosion layer (4) is made of polyimide material.

3. The multi-layer composite reinforced ultraviolet light cured repair hose of claim 2, wherein, The anti-explosion layer (4) is internally provided with an anti-explosion net (8), and the anti-explosion net (8) is made of aramid fiber material.

4. The multi-layer composite reinforced ultraviolet light cured repair hose of claim 3, wherein, The side wall of the anti-explosion layer (4) is provided with a first anti-corrosion layer (5), and the first anti-corrosion layer (5) is made of epoxy coal tar paint.

5. The multi-layer composite reinforced ultraviolet light cured repair hose of claim 4, wherein, The side wall of the outer film (1) is provided with a second anti-corrosion layer (6), and the second anti-corrosion layer (6) is made of polyurethane anti-corrosion paint.

6. The multi-layer composite reinforced ultraviolet light cured repair hose of claim 5, wherein, The side wall of the second anti-corrosion layer (6) is provided with a wear-resistant layer (7), and the wear-resistant layer (7) is made of polyurethane elastomer material.

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