Anti-erosion device based on bionics

Abstract

The utility model provides an anti-erosion device based on bionics, which comprises a buffer layer and a hard anti-erosion layer which are sequentially arranged from inside to outside, the hard anti-erosion layer is provided with a plurality of arc-shaped convex hulls which are arranged in an array, and the arc-shaped convex hulls are used for effectively increasing the incident angle of erosion particles. The included angle between the incident angle and the emergent angle of the erosion particles is reduced, and the erosion rate can be effectively reduced by reducing the denudation degree of the erosion particles and the surface of a material due to erosion or impact in unit time; in addition, when the erosion particles impact the hard anti-erosion layer, the buffer layer filled in the hard anti-erosion layer can absorb most impact energy through recoverable deformation, so that erosion is further reduced, the service life of the hard anti-erosion layer is greatly prolonged, the cost is reduced, in addition, compared with a smooth plane, the collision probability of the erosion particles and the spherical convex hulls is greatly increased, and the service life of the hard anti-erosion layer is prolonged. Therefore, the kinetic energy of the erosion particles in motion is mainly consumed in the anti-erosion device, and equipment or pipelines are further protected.

Description

Technical Field

[0001] The utility model relates to the technical field of erosion resistance, and particularly relates to an erosion-resistant device based on bionics. Background Art

[0002] Erosion failure widely exists in fields such as aerospace, energy, petrochemical industry, etc. The harm of erosion is multi-faceted. It not only affects the safety and economy of equipment, but also may pose a threat to the environment and personnel safety. Therefore, understanding the harm of erosion and taking effective protective measures are crucial for ensuring the safety and reliability of industrial production and engineering design.

[0003] Traditional erosion-resistant methods include forming erosion-resistant coating layers through methods such as coating protection, thermal spraying technology, electroplating technology, etc. However, the defects of the erosion-resistant coating layers are as follows: First, they may peel off or crack due to wear, impact, or environmental factors (such as temperature changes), thus losing the protection effect. Second, the preparation process of the erosion-resistant coating layer may be relatively complex, requiring professional equipment and technology, which limits their application scope. Third, the cost of the materials used for the erosion-resistant coating layer may be relatively high, restricting their use in cost-sensitive applications. Summary of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the purpose of the utility model is to propose an erosion-resistant device based on bionics to solve the problems mentioned in the above background art section.

[0005] The utility model is realized through the following technical solutions:

[0006] An erosion-resistant device based on bionics, comprising a buffer layer and a hard erosion-resistant layer arranged in sequence from inside to outside, and a plurality of arc-shaped convex protrusions arranged in an array are provided on the hard erosion-resistant layer.

[0007] Further, the radius of the arc-shaped convex protrusion is 10d ± 0.5d, where d is the average diameter of the erosion particles.

[0008] Further, two adjacent arc-shaped convex protrusions are connected by a connecting part.

[0009] Further, the width of the connecting part is 0.5d ± 0.1d, where d is the average diameter of the erosion particles.

[0010] Further, the connecting part is a groove structure embedded in the buffer layer.

[0011] Further, the groove structure is a rectangular groove structure.

[0012] Further, the depth of the groove structure is 5d ± 0.5d, where d is the average diameter of the erosion particles.

[0013] Furthermore, the hard erosion-resistant layer is made of aluminum alloy material.

[0014] Furthermore, the buffer layer is made of rubber material.

[0015] Furthermore, the top view projection of the arc-shaped convex hull is polygonal.

[0016] The beneficial effects of the present utility model are as follows: An erosion-resistant device based on bionics includes a buffer layer and a hard erosion-resistant layer arranged in sequence from inside to outside. The hard erosion-resistant layer is provided with a plurality of arc-shaped convex hulls arranged in an array. The function of the arc-shaped convex hulls is to effectively increase the incident angle of erosion particles, so as to reduce the included angle between the incident angle and the exit angle of erosion particles. By reducing the degree of erosion of the erosion particles and the material surface being eroded by scouring or impact per unit time, the erosion rate can be effectively reduced. In addition, when the erosion particles impact the hard erosion-resistant layer, the internally filled buffer layer can absorb most of the impact energy through recoverable deformation, thereby further reducing erosion, greatly prolonging the service life of the hard erosion-resistant layer, and reducing costs. In addition, compared with a smooth plane, the collision probability of erosion particles with spherical convex hulls is greatly increased. Therefore, the kinetic energy of the moving erosion particles is mainly consumed in the erosion-resistant device, further protecting the equipment or pipeline. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of the present utility model.

[0018] Figure 2 is an exploded view of the present utility model.

[0019] Figure 3 is a schematic diagram of the dimensions of the present utility model.

[0020] Figure 4 is a comparison diagram of the erosion angles between the spherical surface and the rectangular plane of the present utility model.

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 1. Hard erosion-resistant layer; 11. Arc-shaped convex hull; 12. Connection part; 13. Hollow space; 2. Buffer layer. Detailed Embodiments

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0024] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0025] Through research on desert lizards, the present utility model has found that the multi-layer structure and special arrangement of the desert lizard's body surface, such as quadrilateral scales, hexagonal scales, and rhombic scales, and the tight arrangement between the scales to form grooves, provide a biological coupling characteristic that reduces the friction of erosion particles on the body. The special body surface structure of the desert lizard enables it to adapt to extreme sandstorm environments.

[0026] Based on the special body surface structure of the desert lizard, a bionics-based erosion-resistant device of the present utility model is designed, which can reduce the loss of materials under the impact of high-speed fluids or solid particles, and at the same time extend the service life of the equipment, thereby reducing economic losses and ensuring the continuity and stability of production, reducing the risks of equipment failures and accidents caused by erosion wear, and improving the safety of industrial systems.

[0027] Specifically, referring to Figures 1 to 3 As shown, a bionics-based erosion-resistant device includes a buffer layer 2 and a hard erosion-resistant layer 1 arranged in sequence from the inside out. The hard erosion-resistant layer 1 is provided with a number of arc-shaped convexes 11 arranged in an array, and the buffer layer 2 is filled in the hollow space 13 on the back of the hard erosion-resistant layer 1.

[0028] The function of the arc-shaped convexes 11 is to effectively increase the incident angle of the erosion particles (the principle refers to Figure 4), the included angle between the incident angle and the exit angle of the eroding particles is reduced. By reducing the degree of erosion caused by the scouring or impact of the eroding particles on the material surface per unit time, the erosion rate can be effectively reduced. In addition, when the eroding particles impact the hard erosion-resistant layer 1, the internally filled buffer layer 2 can absorb most of the impact energy through recoverable deformation, further reducing erosion, greatly extending the service life of the hard erosion-resistant layer 1, and reducing costs. In addition, compared with a smooth plane, the collision probability of the eroding particles with the spherical convex hull is greatly increased. Therefore, the kinetic energy of the moving eroding particles is mainly consumed in the erosion-resistant device, further protecting the equipment or pipeline.

[0029] Refer to Figure 3 As shown, the radius of the arc convex hull 11 is 10d ± 0.5d, where d is the average diameter of the eroding particles. The arc convex hull 11 meeting the above size specifications can effectively change the impact angle of the solid eroding particles and reduce the kinetic energy of the eroding particles.

[0030] Two adjacent arc convex hulls 11 are connected by a connecting part 12. The hard erosion-resistant layer 1 can be slightly deformed through the yielding of the connecting part 12, enabling the erosion-resistant device to adapt to the complex surface of the equipment structure or the curved surface of the pipeline.

[0031] The width of the connecting part 12 is 0.5d ± 0.1d, where d is the average diameter of the eroding particles. This avoids the eroding particles getting stuck at the position of the connecting part 12.

[0032] The connecting part 12 is a groove structure embedded in the buffer layer 2. The groove structure of the connecting part 12 can increase the bending degree of the erosion-resistant device, and embedding the connecting part 12 in the buffer layer 2 can increase the contact area between the buffer layer 2 and the hard erosion-resistant layer 1, increasing the firmness.

[0033] The groove structure is a rectangular groove structure. Compared with groove structure forms such as inverted triangles and arcs, the rectangular groove structure can effectively avoid stress concentration problems caused by internal pressure in the pipeline or structure, ensuring that the erosion-resistant device can maintain a good working state and preventing local damage.

[0034] Refer to Figure 3 As shown, the depth of the groove structure is 5d ± 0.5d, where d is the average diameter of the eroding particles. This size can ensure that the groove structure does not damage the strength of the buffer layer 2 itself and can ensure that the hard erosion-resistant layer 1 has sufficient bending space.

[0035] The hard erosion-resistant layer 1 is made of aluminum alloy. Aluminum alloy is a high-quality ductile metal. For ductile metals, the maximum erosion angle generally ranges from 30° to 45°. A large number of studies have shown that the erosion level of ductile metals at high impact angles is often at a relatively low level. Therefore, a significant increase in the incident angle can effectively reduce the erosion rate.

[0036] The thickness of the hard erosion-resistant layer 1 is greater than or equal to 2d, where d is the average diameter of the erosion particles. This ensures that it has sufficient erosion-resistant strength and a sufficient service life.

[0037] The buffer layer 2 is made of rubber material.

[0038] Specifically, first, the hard erosion-resistant layer 1 made of aluminum alloy is obtained through a stamping process. Then, the hard erosion-resistant layer 1 is inverted, a curing agent is mixed with RTV-2 silicone rubber, and then it is cast on the hard erosion-resistant layer 1. Through the die of the pressing plate, continuous pressure is applied to the two, so that the die is filled with rubber and is in full contact with the hard erosion-resistant layer 1, and wait for it to cure. After curing, it is cleaned with a 90% ethanol solution to obtain the overall erosion-resistant device.

[0039] It should be noted that the typical long-term use temperature range of silicone rubber is approximately between -100°C and +250°C. Within this range, silicone rubber can maintain good elasticity and flexibility. When the temperature further rises and before reaching the decomposition temperature of silicone rubber, silicone rubber will gradually become soft and finally start to flow. Therefore, if the temperature exceeds this range, the internal filling rubber that meets the requirements needs to be replaced. If the temperature exceeds the melting point of aluminum (660.3°C), the external hard shell also needs to be replaced with a material that meets the requirements.

[0040] When in use, it can be cut according to the actual application scenario by using a finishing cutting device. After cutting, the erosion-resistant device of the present utility model can be connected to the inside of the equipment or pipeline through silicone rubber heat vulcanization glue or other special glues.

[0041] The top view projection of the arc-shaped convex hull 11 is polygonal. The arc-shaped convex hull 11 is like the multi-layer structure and special arrangement on the body surface of desert lizards, such as quadrilateral, hexagon, and rhombus. Preferably, it is a quadrilateral structure, which is convenient for the processing and bending of the hard erosion-resistant layer 1.

[0042] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A bionics-based anti-erosion device, characterized in that: It comprises a buffer layer (2) and a hard anti-erosion layer (1) arranged in sequence from the inside to the outside, wherein the hard anti-erosion layer (1) is provided with a plurality of arc-shaped convex hulls (11) arranged in an array; The radius of the arc-shaped convex hull (11) is 10d±0.5d, wherein d is the average diameter of the erosion particles.

2. The bionics-based anti-erosion device according to claim 1, characterized in that: Two adjacent arc-shaped convex hulls (11) are connected via a connecting portion (12).

3. The bionics-based anti-erosion device according to claim 2, characterized in that: The width of the connecting portion (12) is 0.5d±0.1d, wherein d is the average diameter of the erosion particles.

4. The bionics-based anti-erosion device according to claim 2, characterized in that: The connecting portion (12) is a groove structure embedded in the buffer layer (2).

5. The bionics-based anti-erosion device according to claim 4, characterized in that: The groove structure is a rectangular groove structure.

6. The bionics-based anti-erosion device according to claim 4, characterized in that: The depth of the groove structure is 5d±0.5d, wherein d is the average diameter of the erosion particles.

7. The bionics-based anti-erosion device according to claim 1, characterized in that: The hard erosion-resistant layer (1) is made of aluminum alloy.

8. The bionics-based anti-erosion device according to claim 1, characterized in that: The buffer layer (2) is made of rubber material.

9. The bionics-based anti-erosion device according to claim 1, characterized in that: The top projection of the arc-shaped convex hull (11) is polygonal.

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