High-pressure-resistant high-performance composite stainless steel pipe

Abstract

The utility model provides a high-pressure-resistant high-performance composite stainless steel pipe which comprises an outer pipe, an inner pipe is arranged in the outer pipe, and the two ends of the outer pipe and the inner pipe are fixedly connected through packaging covers. The reinforcing supports are transversely distributed between the outer pipe and the inner pipe at equal intervals, the filling cavities are formed between the reinforcing supports and between the reinforcing supports and the packaging cover, and each filling cavity is filled with polystyrene foam; by means of the reinforcing supports arranged at equal intervals and the filled high-viscoelastic polystyrene foam, the pressure bearing performance, the stability and the structural strength of the pipeline are remarkably improved. The design effectively disperses the pressure of high-pressure fluid and prevents fracture and leakage, meanwhile, the buffering characteristic of polystyrene foam is utilized, vibration and noise of the pipeline are greatly reduced, and the environmental comfort degree is improved. More importantly, when the inner pipe is damaged, the polystyrene foam can rapidly block leakage, medium loss is delayed, and precious time is won for emergency maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of steel pipe technology, and in particular relates to a high-pressure resistant, high-performance composite stainless steel pipe. Background Technology

[0002] In existing industrial piping systems, stainless steel pipes are widely used due to their excellent corrosion resistance and mechanical properties. However, in some special applications, such as high-pressure fluid transmission and vibration environments, traditional stainless steel pipes may not be able to meet the high requirements for pressure resistance and stability. Especially under extreme conditions, the high-pressure fluid inside the pipe may cause it to rupture or leak, leading to safety accidents.

[0003] To address these issues, some reinforced stainless steel pipe products have emerged on the market. These products improve pressure resistance and stability by increasing wall thickness, using special alloy materials, or adding internal support structures. However, these methods often lead to increased manufacturing costs or greater pipe weight, hindering the widespread application of these products.

[0004] Therefore, it is essential to invent a high-pressure resistant, high-performance composite stainless steel pipe. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-pressure resistant, high-performance composite stainless steel pipe, including an outer pipe, an inner pipe, a sealing cap, reinforcing supports, a filling cavity, and expanding foam. The inner pipe is disposed inside the outer pipe, and the two ends of the two are fixedly connected by the sealing cap. Several reinforcing supports are equidistantly distributed laterally between the outer pipe and the inner pipe. The filling cavity is formed between the reinforcing supports and between the reinforcing supports and the sealing cap. Each filling cavity is filled with expanding foam.

[0006] Preferably, the cavity area between the outer tube and the inner tube is divided into several filling cavities by several reinforcing supports, and the two ends of the filling area between them are closed by two encapsulation caps.

[0007] Preferably, both the outer tube and the inner tube are composite tubes, which are reinforced and slidably assembled in the cavity area between the outer tube and the inner tube, and are constrained by the foaming adhesive formed on both sides.

[0008] Preferably, the foam is a highly viscous and elastic material, and the foam is tightly bonded to the surrounding outer tube, inner tube, encapsulation cap, and reinforcing support, with the surface of the reinforcing support being rough.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] This invention significantly improves the pipeline's pressure-bearing capacity and stability by arranging several reinforcing supports equidistantly and laterally between the outer and inner pipes, forming filling cavities between the supports and between the supports and the sealing cap, and filling these cavities with highly viscous and elastic expanding foam. This structure effectively disperses and withstands the high-pressure fluid pressure from inside the pipeline, preventing rupture or leakage. Simultaneously, the expanding foam, as an excellent cushioning material, effectively absorbs and disperses vibrations and impacts generated during the transport of media, reducing vibration and noise levels and improving user comfort. The addition of reinforcing supports and expanding foam also enhances the overall structural strength of the pipeline, making it more robust and durable.

[0011] Furthermore, the stainless steel pipe structure provided by this utility model allows the medium to flow into the foam between the reinforcing supports when the inner pipe ruptures. Due to the high viscosity and elasticity of the foam, it can seal and repair the rupture to a certain extent, slow down the leakage rate, buy time for maintenance, and further improve the safety and reliability of the pipeline. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a half-sectional structural diagram of the present invention.

[0014] In the picture:

[0015] 1. Outer tube; 2. Inner tube; 3. Encapsulation cap; 4. Reinforcing support; 5. Filling cavity; 6. Foaming adhesive. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0018] As attached Figure 1 To be continued Figure 2 As shown:

[0019] The high-pressure resistant, high-performance composite stainless steel pipe provided by this utility model includes an outer tube 1, an inner tube 2, a sealing cap 3, reinforcing supports 4, filling cavities 5, and expanding foam 6. The inner tube 2 is disposed inside the outer tube 1, and the two ends of the two are fixedly connected by the sealing cap 3. Several reinforcing supports 4 are equidistantly distributed laterally between the outer tube 1 and the inner tube 2. The filling cavities 5 are formed between the reinforcing supports 4 and between the reinforcing supports 4 and the sealing cap 3. Each filling cavity 5 is filled with expanding foam 6.

[0020] Furthermore, the cavity area between the outer pipe 1 and the inner pipe 2 is effectively divided by several reinforcing supports 4, forming several filling cavities 5. These filling cavities 5 not only improve the structural strength of the pipe but also provide space for subsequent foam filling. At the same time, the two ends of the filling area between the outer pipe 1 and the inner pipe 2 are tightly sealed by two sealing caps 3, ensuring the sealing and integrity of the pipe interior and preventing media leakage.

[0021] Furthermore, both the outer pipe 1 and the inner pipe 2 adopt a composite pipe body design. This design not only improves the corrosion resistance and mechanical properties of the pipeline but also makes it more adaptable to complex working environments. The reinforcing support 4 is slidably assembled within the cavity area between the outer pipe 1 and the inner pipe 2, and its position and quantity can be adjusted according to actual needs to meet different pressure and stability requirements. Simultaneously, the reinforcing support 4 is constrained by the foamed adhesive 6 formed on both sides, further enhancing the overall structural strength of the pipeline.

[0022] Furthermore, the expanding foam 6, as a highly viscous and elastic material, bonds tightly with the surrounding outer tube 1, inner tube 2, sealing cap 3, and reinforcing support 4 during the filling process. This tight bond not only improves the pipe's sealing performance but also enhances its pressure resistance and shock resistance. In particular, the surface of the reinforcing support 4 is designed to be rough, which increases the friction between the expanding foam 6 and the reinforcing support 4, allowing the expanding foam 6 to adhere more firmly to the reinforcing support 4, further improving the overall stability and safety of the pipe.

[0023] The production process of high-pressure resistant, high-performance composite stainless steel pipes mainly includes the following steps:

[0024] Raw material preparation: High-quality stainless steel and carbon steel are selected as the raw materials for the outer tube 1 and inner tube 2. At the same time, auxiliary materials such as reinforcing supports 4, sealing caps 3, and expanding foam 6 are prepared.

[0025] Tube forming: Stainless steel and carbon steel raw materials are processed by rolling, annealing and other processes, and then cut and shaped according to the design dimensions to form the preliminary shape of outer tube 1 and inner tube 2.

[0026] Reinforced support assembly: Several reinforcing supports 4 are assembled laterally at equal intervals according to design requirements within the cavity area between the outer tube 1 and the inner tube 2. The reinforcing supports 4 can be connected to the outer tube 1 and the inner tube 2 by sliding assembly, ensuring the flexibility of their position.

[0027] Cavity Formation: Cavities 5 are formed between the reinforcing supports 4 and between the reinforcing supports 4 and the encapsulation cover 3. These cavities 5 provide space for subsequent filling with expanding foam 6.

[0028] Foam filling: High-viscosity and elastic foam 6 is filled into the filling cavity 5. During the filling process, it is necessary to ensure that the foam 6 is tightly bonded to the surrounding outer tube 1, inner tube 2, encapsulation cap 3, and reinforcing support 4. In particular, the surface of the reinforcing support 4 is designed to be rough to increase the friction between it and the foam 6 and improve adhesion.

[0029] Packaging and Inspection: Two sealing caps 3 are installed at both ends of the outer tube 1 and the inner tube 2 respectively to ensure the sealing and integrity of the pipeline. Then, various performance tests are performed on the pipeline, including pressure bearing capacity, sealing performance, and shock resistance, to ensure that the product quality meets the design requirements.

[0030] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A high-pressure resistant, high-performance composite stainless steel pipe, characterized in that, The device includes an outer tube (1), an inner tube (2), a sealing cap (3), reinforcing supports (4), a filling cavity (5), and expanding foam (6). The inner tube (2) is disposed inside the outer tube (1), and the two ends of the two are fixedly connected by the sealing cap (3). Several reinforcing supports (4) are arranged horizontally at equal intervals between the outer tube (1) and the inner tube (2). The filling cavity (5) is formed between the reinforcing supports (4) and between the reinforcing supports (4) and the sealing cap (3). Each filling cavity (5) is filled with expanding foam (6).

2. The high-pressure resistant high-performance composite stainless steel pipe as described in claim 1, characterized in that: The cavity between the outer tube (1) and the inner tube (2) is divided into several filling cavities (5) by several reinforcing supports (4), and the two ends of the filling area between them are closed by two encapsulation caps (3).

3. The high-pressure resistant high-performance composite stainless steel pipe as described in claim 2, characterized in that: Both the outer tube (1) and the inner tube (2) are composite tubes. The reinforcing support (4) is slidably assembled in the cavity area between the outer tube (1) and the inner tube (2) and is restricted by the foaming adhesive (6) formed by foaming on both sides.

4. The high-pressure resistant high-performance composite stainless steel pipe as described in claim 3, characterized in that: The foam (6) is a highly viscous and elastic material. The foam (6) is tightly bonded to the surrounding outer tube (1), inner tube (2), encapsulation cap (3) and reinforcing support (4). The surface of the reinforcing support (4) is rough.

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