Filter material structure with inlaid wear-resistant layer

Abstract

The utility model belongs to filter material technical field, and disclose a kind of filter material structure of inlaying wear layer, including filter material matrix, the filter material matrix has filter surface and support surface, the filter surface is used to intercept the impurity in filter medium, the support surface is used to maintain filter material overall form, the support surface is located the lowermost layer of filter material matrix, the filter surface is located the upper layer of support surface, and the top end of filter surface is inlaid with wear layer body, the utility model is inlaid with special wear layer body in the top end of the filter surface of filter material matrix, and wear layer body is designed as the three-layer composite structure of inner layer, middle layer, outer layer, under the action of three-layer composite structure, can avoid filter surface direct contact friction with hard particle, effectively solve the problem that the filter surface is easily worn, filter precision drops due to no wear layer of most existing filter material, reduce filter debris generation, simultaneously extend filter replacement cycle, reduce use cost.

Description

Technical Field

[0001] This utility model belongs to the field of filter media technology, specifically a filter media structure with an embedded wear-resistant layer. Background Technology

[0002] In industrial filtration applications, traditional filter media often experience wear and tear over long-term use due to friction and impact from the materials, which affects filtration efficiency and lifespan. To address this issue, a filter media structure with an embedded wear-resistant layer has been developed.

[0003] Most existing filter media structures do not have a dedicated wear-resistant layer during use. The filter surface is directly exposed to the filter medium containing hard particles. After long-term friction and impact from the particles, the filter surface is prone to wear, resulting in larger filter pore size and reduced filtration accuracy. At the same time, the filter media debris generated by wear may mix into the filtration products and contaminate the medium. Furthermore, the filter media as a whole needs to be replaced frequently due to the wear of the filter surface, which increases the cost of use.

[0004] Therefore, a filter media structure with an embedded wear-resistant layer is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a filter media structure with an embedded wear-resistant layer. This structure effectively solves the problems of easy wear and reduced filtration accuracy caused by the lack of a wear-resistant layer in most existing filter media. It also reduces the generation of filter media debris, extends the filter media replacement cycle, reduces usage costs, and prevents the wear-resistant layer from peeling off from the filter surface, thereby further ensuring the long-term stable filtration accuracy and service life of the filter media.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter media structure with an embedded wear-resistant layer, comprising a filter media substrate, the filter media substrate having a filter surface and a support surface, the filter surface being used to intercept impurities in the filter medium, the support surface being used to maintain the overall shape of the filter media, the support surface being located at the bottom layer of the filter media substrate, the filter surface being located at the top layer of the support surface, and a wear-resistant layer body being embedded at the top of the filter surface, the wear-resistant layer body being a three-layer composite structure, consisting of an inner layer, a middle layer, and an outer layer from the side closest to the filter surface to the side furthest from the filter surface.

[0007] Preferably, the hardness of the inner layer, intermediate layer, and outer layer materials increases in a gradient.

[0008] Preferably, the inner layer is made of nickel-based alloy foil, which is tightly fitted to the filter surface. The inner layer has several micro protrusions on the side facing the filter surface. The micro protrusions are in the shape of an inverted frustum and are embedded in the pores of the filter surface to form a mechanical interlock. The middle layer is made of a composite material of glass fiber felt filled with stainless steel micro powder. The middle layer is bonded to the inner and outer layers respectively, and the middle layer has several buffer holes distributed along the thickness direction. The buffer holes are closed cavities to absorb the impact load of the filter medium. The outer layer is made of metal ceramic, and the outer surface of the outer layer has micro grooves.

[0009] Preferably, the micro protrusions, buffer holes, and micro grooves are all distributed in a rectangular array.

[0010] Preferably, the support surface is a fabric structure with an interwoven texture, which can enhance the tensile strength of the support surface.

[0011] Preferably, the support surface and the filter surface are fixedly connected by bonding, and there is no obvious gap between them after bonding.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model embeds a special wear-resistant layer body on the top of the filter surface of the filter media substrate, and designs the wear-resistant layer body as a three-layer composite structure of inner layer, middle layer and outer layer. Under the action of the three-layer composite structure, the filter surface can avoid direct contact and friction with hard particles, effectively solving the problem of easy wear of the filter surface and reduced filtration accuracy caused by the lack of wear-resistant layer in most existing filter media, reducing the generation of filter media debris, extending the filter media replacement cycle and reducing the cost of use.

[0014] 2. This utility model designs the wear-resistant layer body as a three-layer material with progressively increasing hardness and mechanical interlocking of the inner layer. With the synergistic effect of the inner layer preventing detachment, the middle layer resisting impact, and the outer layer resisting wear, it not only achieves basic wear-resistant protection for the filter surface, but also resists the impact load of particles in the filter medium, preventing the wear-resistant layer from peeling off from the filter surface, and further ensuring the long-term stable filtration accuracy and service life of the filter media. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the filter surface, support surface, and wear-resistant layer of this utility model.

[0017] Figure 3 This is an exploded view of the inner, middle and outer layer structure of this utility model;

[0018] Figure 4This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Filter media substrate; 11. Support surface; 12. Filter surface;

[0020] 2. Wear-resistant layer body;

[0021] 21. Outer layer; 211. Micro-grooves;

[0022] 22. Intermediate layer; 221. Buffer hole;

[0023] 23. Inner layer; 231. Micro protrusion. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 4 As shown, this utility model provides a filter media structure with an embedded wear-resistant layer, including a filter media substrate 1. The filter media substrate 1 has a filter surface 12 and a support surface 11. The filter surface 12 is used to intercept impurities in the filter medium, and the support surface 11 is used to maintain the overall shape of the filter media. The support surface 11 is located at the bottom layer of the filter media substrate 1, and the filter surface 12 is located at the top layer of the support surface 11. The top of the filter surface 12 is inlaid with a wear-resistant layer body 2.

[0026] The wear-resistant layer body 2 has a three-layer composite structure. From the side closest to the filter surface 12 to the side furthest from the filter surface 12, it consists of an inner layer 23, a middle layer 22, and an outer layer 21. By setting the wear-resistant layer body 2 as a three-layer composite structure and embedding it on the top of the filter surface 12, a special protection is formed for the filter surface 12, preventing the filter surface 12 from directly contacting hard particles in the filter medium. This solves the problem of easy wear of the filter surface 12 caused by the lack of a wear-resistant layer in most existing filter media, and extends the service life of the filter media.

[0027] Specifically, the hardness of the inner layer 23, the middle layer 22 and the outer layer 21 materials increases in a gradient. The design of increasing hardness makes the wear-resistant layer body 2 adapt to different protection needs from the inside to the outside. The tough material of the inner layer 23 ensures the stability of the fit with the filter surface 12, the medium hardness material of the middle layer 22 balances buffering and support, and the high hardness material of the outer layer 21 directly resists friction, realizing layered protection and synergistic effect.

[0028] like Figures 1 to 4As shown, the inner layer 23 is made of nickel-based alloy foil. The inner layer 23 is tightly attached to the filter surface 12, and the inner layer 23 has a number of micro protrusions 231 on the side facing the filter surface 12. The micro protrusions 231 are in the shape of an inverted frustum. The micro protrusions 231 are embedded in the pores of the filter surface 12 to form a mechanical interlock. The inverted frustum-shaped micro protrusions 231 of the inner layer 23 enhance the connection stability with the filter surface 12 through mechanical interlock, and prevent the wear-resistant layer from falling off.

[0029] The intermediate layer 22 is made of a composite material of glass fiber felt filled with stainless steel micro powder. The intermediate layer 22 is combined with the inner layer 23 and the outer layer 21 respectively. The intermediate layer 22 has a number of buffer holes 221 distributed along the thickness direction. The buffer holes 221 are closed cavities to absorb the impact load of the filter medium. The buffer holes 221 of the intermediate layer 22 absorb the impact load through the closed cavity, reducing the impact force on the filter surface 12.

[0030] The outer layer 21 is made of metal ceramic. The outer surface of the outer layer 21 is provided with micro grooves 211. The micro grooves 211 of the outer layer 21 reduce the contact area with the medium and reduce friction loss. The triple structure improves the protection effect from the perspectives of connection, buffering and friction reduction.

[0031] Furthermore, the micro protrusions 231, buffer holes 221, and micro grooves 211 are all arranged in a rectangular array. The rectangular array arrangement ensures that the micro protrusions 231, buffer holes 221, and micro grooves 211 are evenly distributed in the corresponding layers, ensuring that the inner layer 23 is subjected to uniform interlocking force, the middle layer 22 has a consistent buffering effect, and the outer layer 21 has balanced frictional wear, thus avoiding premature failure of local structures due to concentrated force or insufficient protection.

[0032] like Figures 1 to 4 As shown, the support surface 11 is a fabric structure with interwoven texture, which can enhance the tensile strength of the support surface 11. The interwoven texture fabric structure of the support surface 11 improves the tensile strength, ensuring that the filter media is not easily deformed when impacted by the filter medium or installed and fixed, providing stable structural support for the filter surface 12 and the wear-resistant layer, and ensuring the consistency of the overall filter media shape.

[0033] It is worth noting that the support surface 11 and the filter surface 12 are fixedly connected by bonding. After bonding, there is no obvious gap between the two. The support surface 11 and the filter surface 12 are bonded together without gap, which avoids the filter medium from leaking or stagnating from the gaps between the layers. This ensures that all the medium passes through the filter surface 12 to complete the filtration, while also enhancing the overall structural strength of the filter material matrix 1 and reducing the risk of interlayer peeling.

[0034] Working principle and process: During filtration, the filter medium first contacts the outer layer 21 of the wear-resistant layer body 2. The high-hardness material and micro-grooves 211 on the surface of the outer layer 21 directly resist the friction of hard particles in the medium and guide the medium to flow to the filter surface 12 through the grooves. If the particles in the medium generate impact load, the closed buffer holes 221 of the middle layer 22 absorb the impact energy through their own deformation, reducing the impact force transmitted inward. The inner layer 23 mechanically engages with the filter surface 12 through the inverted frustum-shaped micro-protrusions 231, ensuring that the wear-resistant layer does not fall off as a whole. At the same time, the tough material further buffers the remaining load. When the filter medium finally passes through the filter surface 12, the impurities are intercepted by the filter surface 12, while the support surface 11 maintains the overall shape stability of the filter material through the interwoven textured fabric structure, ensuring that the filtration process continues to be efficient.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter media structure with an embedded wear-resistant layer, comprising a filter media substrate (1), characterized in that: The filter media substrate (1) has a filter surface (12) and a support surface (11). The filter surface (12) is used to intercept impurities in the filter medium, and the support surface (11) is used to maintain the overall shape of the filter media. The support surface (11) is located at the bottom layer of the filter media substrate (1), and the filter surface (12) is located on the top layer of the support surface (11). The top of the filter surface (12) is inlaid with a wear-resistant layer body (2). The wear-resistant layer body (2) is a three-layer composite structure, consisting of an inner layer (23), a middle layer (22), and an outer layer (21) from the side closest to the filter surface (12) to the side furthest from the filter surface (12).

2. The filter media structure with an embedded wear-resistant layer according to claim 1, characterized in that: The hardness of the inner layer (23), middle layer (22) and outer layer (21) materials increases in a gradient.

3. The filter media structure with an embedded wear-resistant layer according to claim 2, characterized in that: The inner layer (23) is made of nickel-based alloy foil. The inner layer (23) is closely attached to the filter surface (12), and the inner layer (23) has a number of micro protrusions (231) on the side facing the filter surface (12). The micro protrusions (231) are in the shape of an inverted frustum. The micro protrusions (231) are embedded in the pores of the filter surface (12) to form a mechanical interlock. The intermediate layer (22) is made of a composite material of glass fiber felt filled with stainless steel micro powder. The intermediate layer (22) is combined with the inner layer (23) and the outer layer (21) respectively. The intermediate layer (22) is provided with a number of buffer holes (221) distributed along the thickness direction. The buffer holes (221) are closed cavities to absorb the impact load of the filter medium. The outer layer (21) is made of metal ceramic, and the outer surface of the outer layer (21) is provided with micro-grooves (211).

4. The filter media structure with an embedded wear-resistant layer according to claim 3, characterized in that: The micro protrusions (231), buffer holes (221), and micro grooves (211) are all arranged in a rectangular array.

5. The filter media structure with an embedded wear-resistant layer according to claim 1, characterized in that: The support surface (11) is a fabric structure with an interwoven texture, which can enhance the tensile strength of the support surface (11).

6. The filter media structure with an embedded wear-resistant layer according to claim 5, characterized in that: The support surface (11) and the filter surface (12) are fixedly connected by bonding, and there is no obvious gap between them after bonding.

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