FE-HM Perforated Reinforced Corrugated Pipe

Abstract

This utility model discloses the FE-HM perforated reinforced corrugated pipe, relating to the field of corrugated pipe technology. It includes: a pipe body; multiple expansion joints circumferentially disposed on the outer wall of the pipe body, evenly distributed along the axial direction of the pipe body, each expansion joint having an internal cavity; circumferential support ribs disposed within the cavities, with one end connected to an expansion joint and the other end connected to the pipe body; and elastic holes disposed on the circumferential support ribs, arranged circumferentially along the ribs. This utility model improves the stiffness of the expansion joint by incorporating circumferential support ribs and provides elastic holes on these ribs. These elastic holes release the bending modulus when the circumferential support ribs bend, effectively reducing stress concentration during bending. This allows the expansion joint to achieve smooth bending deformation even under significant external pressure, greatly enhancing its resistance to bending failure.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, and in particular to FE-HM perforated reinforced corrugated pipe. Background Technology

[0002] In modern industry, corrugated pipes, as flexible pipe components with axial expansion and contraction capabilities and lateral flexibility, are widely used in many scenarios such as petrochemicals, municipal engineering, nuclear power, and aerospace. Their main function is to compensate for pipeline displacement caused by factors such as temperature changes, foundation settlement, and vibration, while simultaneously absorbing vibration energy within the system to protect the safe operation of the pipeline and related equipment.

[0003] However, in certain special applications, such as when corrugated pipes need to be deeply buried, the challenges are particularly prominent. Under deep burial conditions, the corrugated pipe not only has to withstand enormous external pressure from the soil but may also be constrained by surrounding structures. This means that when displacement or vibration occurs, the protruding parts on the corrugated pipe must bear greater bending stress. Traditional corrugated pipe protrusion designs often focus more on axial expansion and contraction performance, with relatively insufficient consideration for lateral bending capacity. The cross-sectional shape, wall thickness distribution, and other parameters of these protrusions are difficult to set to achieve effective bending deformation under high-pressure environments.

[0004] When external pressure is too high, the protrusions of traditional bellows are prone to stress concentration during bending, which can lead to plastic deformation, cracking, or even breakage at the root or top of the protrusions. This damage not only affects the normal function of the bellows, causing serious consequences such as media leakage and system pressure imbalance, but may also lead to safety accidents, increased maintenance costs, and downtime losses. Utility Model Content

[0005] The main purpose of this utility model is to provide FE-HM perforated reinforced corrugated pipe to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides an FE-HM perforated reinforced corrugated pipe, comprising:

[0007] tube body;

[0008] Expansion joints are arranged circumferentially on the outer wall of the pipe body. Multiple expansion joints are provided and evenly distributed along the axial direction of the pipe body. Each expansion joint has a cavity inside.

[0009] A circumferential support rib is provided in the cavity, with its first end connected to the expansion joint and its second end connected to the tube body.

[0010] An elastic hole is provided on the circumferential support rib, and the elastic hole is arranged along the circumference of the circumferential support rib.

[0011] Furthermore, multiple elastic holes are provided, and the multiple elastic holes are evenly distributed along the radial direction of the circumferential support rib.

[0012] Furthermore, the plurality of elastic holes are arranged in multiple rows along the radial direction of the tube body.

[0013] Furthermore, the elastic holes in adjacent rows are arranged in an alternating pattern.

[0014] Furthermore, it also includes a plurality of auxiliary holes, which are located on both sides of the elastic hole and are arranged alternately with the elastic hole.

[0015] Furthermore, the expansion joint has a trapezoidal cross-section on one side.

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

[0017] This invention improves the stiffness of the expansion joint by setting circumferential support ribs and providing elastic holes on the circumferential support ribs. The elastic holes release the bending modulus when the circumferential support ribs are bent, which can effectively reduce the stress concentration phenomenon during the bending process. This allows the expansion joint to achieve smooth bending deformation even when subjected to large external pressure, greatly improving its ability to resist bending failure. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the FE-HM perforated reinforced corrugated pipe of this utility model;

[0019] Figure 2 This is a schematic diagram of the expansion joint of the FE-HM perforated reinforced corrugated pipe of this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the expansion joint of the FE-HM perforated reinforced corrugated pipe of this utility model. Figure 2 .

[0021] In the figure: 1-pipe body; 2-expansion joint; 3-circumferential support rib; 4-elastic hole. Detailed Implementation

[0022] To achieve the above objectives and effects, the technical means and structure adopted by this utility model are described in detail with reference to the accompanying drawings, focusing on the features and functions of the preferred embodiments of this utility model.

[0023] As attached Figures 1-2 As shown, this utility model provides an FE-HM perforated reinforced corrugated pipe, comprising:

[0024] tube body 1;

[0025] Expansion joint 2 is circumferentially arranged on the outer wall of pipe body 1. Multiple expansion joints 2 are provided and are evenly distributed along the axial direction of pipe body 1. The interior of expansion joint 2 is provided with a cavity. The cross-section of one side of expansion joint 2 is trapezoidal.

[0026] Circumferential support rib 3 is provided in the cavity. The first end of the circumferential support rib 3 is connected to the expansion joint 2, and the second end is connected to the tube body 1.

[0027] Elastic holes 4 are provided on the circumferential support rib 3 and are arranged along the circumference of the circumferential support rib 3.

[0028] The circumferential support rib 3 can support the expansion joint 2, improve the stiffness and stability of the expansion joint 2. When the expansion joint 2 is subjected to a large external force and bends, the circumferential support rib 3 can bend accordingly. At this time, the elastic hole 4 in the circumferential support rib 3 can improve the bending ability of the circumferential support rib 3, improve the overall elasticity of the expansion joint 2, and prevent the expansion joint 2 from bending too much and causing damage.

[0029] In this embodiment, multiple elastic holes 4 are provided, and the multiple elastic holes 4 are evenly distributed along the radial direction of the circumferential support rib 3. This further improves the ability of the elastic holes 4 to release the bending modulus of the circumferential support rib 3, so that when the pipe body 1 is used for underground pipes or other applications that need to be deeply buried in the soil, the expansion joint 2 can be fully bent under soil pressure, avoiding damage to the expansion joint 2 under soil pressure when the pipe body 1 is deeply buried.

[0030] Specifically, such as Figure 3 As shown, multiple elastic holes 4 are arranged in multiple rows along the radial direction of the tube body 1 to form an elastic hole group.

[0031] Specifically, in the elastic hole group, the elastic holes 4 in adjacent rows are arranged in an alternating manner. This achieves the distributed release of the flexural modulus.

[0032] In this embodiment, multiple auxiliary holes are also included. These auxiliary holes are located on both sides of the elastic hole 4 and are arranged alternately with the elastic hole 4. The diameter of the auxiliary holes is smaller than the diameter of the elastic hole 4. Therefore, when the size of the circumferential support rib 3 is limited and multiple rows of elastic holes 4 cannot be provided, the smaller auxiliary holes assist the elastic hole 4 in dispersing and releasing the bending modulus.

[0033] The above description is only a preferred embodiment of the present utility model and not all embodiments. Anyone should know that structural changes made under the guidance of the present utility model are protected by the present utility model. All technical solutions that are the same as or similar to the present utility model are within the scope of protection of the present utility model.

Claims

1. FE-HM perforated reinforced corrugated pipe, characterized in that, include: tube body(1); Expansion joint (2), the expansion joint (2) is circumferentially arranged on the outer wall of the pipe body (1), and multiple expansion joints (2) are provided. The multiple expansion joints (2) are evenly distributed along the axial direction of the pipe body (1), and the interior of the expansion joint (2) is provided with a cavity; Circumferential support rib (3), the circumferential support rib (3) is disposed in the cavity, the first end of the circumferential support rib (3) is connected to the expansion joint (2), and the second end is connected to the tube body (1); Elastic hole (4), the elastic hole (4) is provided on the circumferential support rib (3), the elastic hole (4) is provided along the circumference of the circumferential support rib (3); Multiple elastic holes (4) are arranged in multiple rows along the radial direction of the tube body (1), and the elastic holes (4) in adjacent rows are arranged in an alternating manner; It also includes multiple auxiliary holes, which are located on both sides of the elastic hole (4) and are arranged alternately with the elastic hole (4).

2. The FE-HM perforated stiffened bellows of claim 1, wherein, The elastic holes (4) are provided in multiple ways, and the multiple elastic holes (4) are evenly distributed along the radial direction of the circumferential support rib (3).

3. The FE-HM perforated stiffened bellows of claim 2, wherein, The expansion joint (2) has a trapezoidal cross-section on one side.

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