Seabed flexible hose with self-repairing function

Abstract

The utility model discloses a seabed flexible hose with a self-repairing function, which comprises an inner layer, a placement layer is adhered to the outer wall of the inner layer, the placement layer is spirally wound on the inner layer to form a connecting cavity, a first repairing pipe and a second repairing pipe are spirally wound in the connecting cavity, and an isolating layer is adhered to the outer wall of the placement layer. The utility model has the beneficial effects that the placement layer is wound on the outer wall of the inner layer to form the connecting cavity, and the repair pipe I and the repair pipe II are spirally wound in the connecting cavity, so that the repair pipe I and the repair pipe II can be limited on the outer wall of the inner layer and can be prevented from being embedded into the inner layer; therefore, cracks caused by weakness of the inner layer can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible hoses, in particular to a flexible hose with a self-repairing function for submarine use. Background Art

[0002] The biggest feature of submarine flexible pipelines is their strong flexibility. They can bend freely in the complex terrain of the seabed without causing stress concentration problems. This allows flexible pipelines to be used in places with large slopes, bends and terrain changes on the seabed, thereby improving the efficiency of oil and gas transportation.

[0003] Chinese patent publication number CN209495039U discloses a flexible hose with self-repairing function, including an inner protective layer and an outer protective layer, wherein an adhesive tube is embedded in the outer side wall of the inner protective layer by spiral winding.

[0004] During use, the above patent provides adhesive tube 1 and adhesive tube 2 with a certain pressure, so that when adhesive tube 1 and adhesive tube 2 crack, two different adhesives can be slowly squeezed out and stably released from the cracks, thereby effectively preventing the expansion of cracks on the internal protective layer of the flexible hose. However, since adhesive tube 1 and adhesive layer 2 are embedded in the outer wall of the internal protective layer, the internal protective layer will be weak and more prone to cracks. Therefore, a new type of flexible hose with self-repairing function for submarine use is urgently needed to solve these problems. Summary of the Invention

[0005] (1) Technical problems to be solved

[0006] The technical problem to be solved by the utility model is to provide a flexible hose with a self-repairing function for use on the seabed, which avoids the weakening of the inner layer, in view of the current status of the existing technology.

[0007] (2) Technical solution

[0008] The present invention is achieved through the following technical solution: The present invention proposes a flexible hose with self-repairing function for submarine use, comprising an inner layer, an outer wall of the inner layer bonded with a placement layer, the placement layer spirally wound on the inner layer to form a connecting cavity, a repair pipe 1 and a repair pipe 2 spirally wound in the connecting cavity, an isolation layer bonded to the outer wall of the placement layer, an outer wall of the isolation layer is provided with a pressure-resistant layer, the outer wall of the pressure-resistant layer is connected to a protective layer, the outer wall of the protective layer is bonded with a tensile layer, and the outer wall of the tensile layer is bonded to the outer layer.

[0009] Furthermore, the inner layer is bonded to the placement layer, and the inner layer is made of ultra-high molecular weight polyethylene. By adopting the above technical solution, the inner layer can more firmly fix the placement layer, and the inner layer can be more convenient for transporting crude oil, water, etc. from submarine oil and gas wells.

[0010] Furthermore, the connecting cavity is formed between the placement layer and the inner layer, and the first and second repair tubes are embedded in the connecting cavity. By adopting the above technical solution, the connecting cavity can more easily fix the first and second repair tubes to the outer wall of the inner layer, and the placement layer can prevent the first and second repair tubes from being embedded in the inner layer, thereby weakening the inner layer.

[0011] Furthermore, the first and second repair tubes are each filled with a different adhesive, and the placement layer is bonded to the isolation layer. By adopting the above technical solution, the first and second repair tubes can better store the adhesive. When the flexible hose is compressed to the point of cracking, the first and second repair tubes can be squeezed and broken, allowing the two adhesives to flow out and mix and solidify, thereby preventing the crack in the inner layer from spreading.

[0012] Furthermore, the isolation layer is made of polyethylene, bonded to the pressure-resistant layer, and the pressure-resistant layer is woven from stainless steel strips. By adopting the above technical solution, the isolation layer can more firmly fix the pressure-resistant layer, and the pressure-resistant layer can improve the pressure-bearing capacity of the flexible hose.

[0013] Furthermore, the pressure-resistant layer is bonded to the protective layer, and the protective layer is made of high-strength, high-modulus fiber and cured resin. By adopting the above technical solution, the pressure-resistant layer can more firmly fix the protective layer, and the protective layer can better separate the pressure-resistant layer from the tensile layer.

[0014] Furthermore, the protective layer is bonded to the anti-tensile layer, which is made of high-strength woven fiber, and is bonded to the outer layer. By adopting the above technical solution, the protective layer can more firmly fix the anti-tensile layer, the anti-tensile layer can improve the flexibility of the flexible artificial, the anti-tensile layer can better fix the outer layer, and the outer layer can better block seawater and water vapor.

[0015] (3) Beneficial effects

[0016] Compared with the existing technology, the present invention has the following beneficial effects: in order to solve the problem that during use of the existing submarine flexible hose with self-repairing function, the bonding tube 1 and the bonding layer 2 are embedded in the outer wall of the inner protective layer, which makes the inner protective layer weak and more prone to cracks, the present invention forms a connecting cavity by wrapping the placement layer around the outer wall of the inner layer, and spirally wraps the repair tube 1 and the repair tube 2 into the connecting cavity, which can not only limit the repair tube 1 and the repair tube 2 to the outer wall of the inner layer, but also avoid the repair tube 1 and the repair tube 2 from being embedded in the inner layer, thereby preventing the inner layer from being weakened and cracked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a flexible hose with self-repairing function for submarine use according to the present invention;

[0018] Figure 2 This is a flexible hose with self-repairing function for submarine use described in the utility model. Figure 1 Enlarged view of point A in the middle.

[0019] The description of the accompanying drawings is as follows: 1. Inner layer; 2. Placement layer; 3. Connection cavity; 4. Repair tube 1; 5. Repair tube 2; 6. Isolation layer; 7. Compression layer; 8. Protective layer; 9. Tensile layer; 10. Outer layer. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figure 1-Figure 2 As shown, in this embodiment, a flexible hose with a self-repairing function for submarine use comprises an inner layer 1, and an outer wall of the inner layer 1 is bonded with a placement layer 2. The inner layer 1 can fix the placement layer 2 more firmly, and the inner layer 1 can be more convenient for transporting crude oil, water, etc. from submarine oil and gas wells. The placement layer 2 is spirally wound on the inner layer 1 to form a connecting cavity 3, and a repair pipe 1 4 and a repair pipe 2 5 are spirally wound in the connecting cavity 3. The connecting cavity 3 can make it easier to fix the repair pipe 1 4 and the repair pipe 2 5 to the outer wall of the inner layer 1, and the placement layer 2 can prevent the repair pipe 1 4 and the repair pipe 2 5 from being embedded in the inner layer 1, resulting in It is weak, and the outer wall of the placement layer 2 is bonded with an isolation layer 6, and the outer wall of the isolation layer 6 is provided with a pressure-resistant layer 7, and the outer wall of the pressure-resistant layer 7 is connected with a protective layer 8. The pressure-resistant layer 7 can fix the protective layer 8 more firmly, and the protective layer 8 can better separate the pressure-resistant layer 7 from the tensile layer 9. The outer wall of the protective layer 8 is bonded with a tensile layer 9, and the outer wall of the tensile layer 9 is bonded with an outer layer 10. The protective layer 8 can fix the tensile layer 9 more firmly, and the tensile layer 9 can improve the flexibility of the flexible artificial material. The tensile layer 9 can better fix the outer layer 10, and the outer layer 10 can better block seawater and water vapor.

[0022] like Figure 1-Figure 2As shown, in this embodiment, the inner layer 1 is bonded to the placement layer 2, the inner layer 1 is made of ultra-high molecular weight polyethylene material, the connecting cavity 3 is formed between the placement layer 2 and the inner layer 1, the repair tube 1 4 and the repair tube 2 5 are both embedded in the connecting cavity 3, and the repair tube 1 4 and the repair tube 2 5 are respectively filled with different adhesives, the placement layer 2 is bonded to the isolation layer 6, the repair tube 1 4 and the repair tube 2 5 can better store the adhesive, and when the flexible hose is pressurized to crack, the repair tube 1 4 and the repair tube 2 5 can be squeezed and broken, which is convenient for the two adhesives. The mixture flows out, mixes and solidifies, thereby preventing the cracks in the inner layer 1 from spreading. The isolation layer 6 is made of polyethylene material, and the isolation layer 6 is bonded to the pressure-resistant layer 7. The pressure-resistant layer 7 is woven with stainless steel strips. The isolation layer 6 can fix the pressure-resistant layer 7 more firmly, and the pressure-resistant layer 7 can improve the pressure-bearing capacity of the flexible hose. The pressure-resistant layer 7 is bonded to the protective layer 8. The protective layer 8 is solidified with high-strength and high-modulus fibers and resin. The protective layer 8 is bonded to the tensile layer 9. The tensile layer 9 is woven with high-strength fibers, and the tensile layer 9 is bonded to the outer layer 10.

[0023] The specific implementation process of this embodiment is as follows: when in use, the placement layer 2 is first spirally wound and bonded to the outer wall of the inner layer 1, so that the placement layer 2 can form a connecting cavity 3 on the outer wall of the inner layer 1. By wrapping the placement layer 2 around the outer wall of the inner layer 1 to form a connecting cavity 3, the repair tube 1 4 and the repair tube 2 5 are spirally wound into the connecting cavity 3, which can not only limit the repair tube 1 4 and the repair tube 2 5 to the outer wall of the inner layer 1, but also avoid the repair tube 1 4 and the repair tube 2 5 from being embedded in the inner layer 1, thereby preventing the inner layer 1 from becoming weak and cracking.

[0024] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flexible hose with self-repairing function for submarine use, characterized by: The invention comprises an inner layer (1), an outer wall of the inner layer (1) is bonded with a placement layer (2), the placement layer (2) is spirally wound on the inner layer (1) to form a connecting cavity (3), a repair tube 1 (4) and a repair tube 2 (5) are spirally wound in the connecting cavity (3), an isolation layer (6) is bonded to the outer wall of the placement layer (2), a pressure-resistant layer (7) is provided on the outer wall of the isolation layer (6), a protective layer (8) is connected to the outer wall of the pressure-resistant layer (7), a tensile layer (9) is bonded to the outer wall of the protective layer (8), and an outer layer (10) is bonded to the outer wall of the tensile layer (9).

2. The submarine self-repairing flexible hose according to claim 1, characterized in that: The inner layer (1) is bonded to the placement layer (2), and the inner layer (1) is made of ultra-high molecular weight polyethylene.

3. The submarine self-repairing flexible hose according to claim 1, characterized in that: The connecting cavity (3) is formed between the placement layer (2) and the inner layer (1), and the repair tube 1 (4) and the repair tube 2 (5) are both embedded in the connecting cavity (3).

4. The submarine self-repairing flexible hose according to claim 1, characterized in that: The repair tube 1 (4) and the repair tube 2 (5) are respectively filled with different adhesives, and the placement layer (2) is bonded to the isolation layer (6).

5. The submarine self-repairing flexible hose according to claim 1, characterized in that: The isolation layer (6) is made of polyethylene material, the isolation layer (6) is bonded to the pressure-resistant layer (7), and the pressure-resistant layer (7) is woven from stainless steel strips.

6. The submarine self-repairing flexible hose according to claim 1, characterized in that: The pressure-resistant layer (7) is bonded to the protective layer (8), and the protective layer (8) is formed by curing high-strength and high-modulus fibers with resin.

7. The submarine self-repairing flexible hose according to claim 1, characterized in that: The protective layer (8) is bonded to the anti-tensile layer (9), the anti-tensile layer (9) is made of high-strength fiber weaving, and the anti-tensile layer (9) is bonded to the outer layer (10).

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