Carbon fiber filter element

Abstract

The carbon fiber filter element comprises a filter element body, the filter element body comprises a net-shaped framework, an inner-layer non-woven fabric, a carbon fiber filter layer, an outer-layer non-woven fabric and a protective net sleeve which are sequentially laminated from inside to outside, and the carbon fiber filter layer partially extends into the inner-layer non-woven fabric; the carbon fiber compound solution is absorbed and planted on the non-woven fabric, so that the carbon fiber filter layer is a seamless single layer, and the problem that a roll-shaped structure of a filter element in the prior art has a seam, so that the filter element leaks filtration is solved; the density of the filter layer is increased by the carbon fiber filter layer formed by the suction planting, so that the problems of low filter precision and poor filter effect caused by a roll-shaped structure of the filter element in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of filtration devices, and in particular to a carbon fiber filter element. Background Technology

[0002] Carbon fiber is the preferred choice for filter materials due to its small and widely distributed pores, fast adsorption speed, large adsorption capacity, easy regeneration, and significant effect in water purification.

[0003] The common structure of carbon fiber filter elements consists of one layer of filter cloth and one layer of carbon fiber filter cloth stacked and rolled on a mesh skeleton.

[0004] The existing carbon fiber filter elements described above have the following problems:

[0005] The multi-layered structure results in a low effective carbon fiber content in the adsorption layers due to the layered structure requirements. The non-woven fabric plays a part in the filtration function, but its adsorption capacity is poor and it is easy to cause accumulation and blockage between the layers, resulting in low filtration accuracy, low flow rate and poor filtration effect.

[0006] Rolled and fixed structures are prone to seams, resulting in poor overall structure. The filtered solution can easily escape the filter layer through the seams, leading to filtration leakage.

[0007] Therefore, in order to solve the problems mentioned in the background art, a new carbon fiber filter element is needed. Utility Model Content

[0008] This invention aims to solve the problem of poor filtration effect of the simple stacked structure of existing carbon fiber filter elements, and proposes a carbon fiber filter element:

[0009] The filter element body includes a mesh skeleton, an inner non-woven fabric, a carbon fiber filter layer, an outer non-woven fabric, and a protective mesh sleeve, which are stacked sequentially from the inside out; the carbon fiber filter layer extends into the inner non-woven fabric.

[0010] Furthermore, the filter element includes an upper end cap and a lower end cap, both of which are annular structures.

[0011] Furthermore, the annular structure is provided with a frustum-shaped protrusion.

[0012] Furthermore, a gasket is fixed on the frustum-shaped protrusion.

[0013] Furthermore, the material of the gasket is: rubber, PP, silicone, PE or PET.

[0014] Furthermore, the filter element body is a hollow cylindrical structure; the inner wall of the hollow cylindrical structure is engaged with the inner ring of the circular structure; the outer wall of the hollow cylindrical structure is engaged with the outer ring of the circular structure.

[0015] Furthermore, the top of the inner surface of the upper and lower end caps is provided with several raised textures.

[0016] Furthermore, hot melt adhesive is fixed between the filter element body and the upper end cover, and between the filter element body and the lower end cover.

[0017] Furthermore, both the inner and outer nonwoven fabrics are made of polyester.

[0018] Furthermore, the protective mesh sleeve is made of PP material.

[0019] This invention addresses the problem of filter cartridges failing to filter due to the low effective carbon fiber content, seams, and poor overall structure caused by the roll-shaped structure of existing filter cartridges. The carbon fiber filter layer formed through this process increases its density, enhancing adsorption capacity and speed. Its adsorption capacity is hundreds or even thousands of times greater than that of ordinary activated carbon materials, solving the problem of low filtration accuracy and poor filtration effect caused by the roll-shaped structure of existing filter cartridges. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of a carbon fiber filter element according to the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of a carbon fiber filter element according to the present invention.

[0023] Explanation of icon numbers:

[0024]

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, inside, outside, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Please see Figures 1 to 2 ; Figure 1 This is a three-dimensional structural diagram of a carbon fiber filter element according to the present invention; Figure 2 This is a cross-sectional structural diagram of a carbon fiber filter element according to the present invention.

[0031] The carbon fiber filter element 10 of this embodiment includes a filter element body 100, which includes a mesh skeleton 110, an inner non-woven fabric 120, a carbon fiber filter layer 130, an outer non-woven fabric 140, and a protective mesh sleeve 150 stacked from the inside out; the carbon fiber filter layer 130 extends into the inner non-woven fabric 120.

[0032] In this embodiment, the mesh skeleton 100 is a hollow cylindrical structure. The mesh skeleton 100 plays the role of supporting the entire filter element 10 during processing. Preferably, the material of the mesh skeleton 100 is plastic PP, and the thickness of the mesh skeleton 100 is 0.5mm to 5.0mm.

[0033] The filter element 10 includes an upper end cap 200 and a lower end cap 300. In this embodiment, the filter element 10 also includes an upper end cap 200 that is respectively disposed at both ends of the filter element body 100 and engaged with the upper end of the filter element body 100, and a lower end cap 300 that is engaged with the lower end of the filter element body 100. Since the filter element body 100 is wrapped with multiple layers of material in sequence, it is necessary to fix the outer multiple layers of material by engaging the upper end cap 200 and the lower end cap 300 with the two ends of the filter element body 100, and at the same time play the role of making the filter element 10 firmly installed when in use. The upper end cap 200 and the lower end cap 300 are preferably injection molded from polypropylene, polyethylene or polyvinyl chloride.

[0034] Both the upper end cap 200 and the lower end cap 300 are circular ring structures, and the filter element body 100 is a hollow cylindrical structure. The inner wall of the hollow cylindrical structure is fixed in conjunction with the inner ring of the circular ring structure; the outer wall of the hollow cylindrical structure is fixed in conjunction with the outer ring of the circular ring structure. In this embodiment, optionally, the height of the inner ring edge of the upper and lower end caps is equal to the height of the outer ring edge, and the width between the inner and outer rings of the upper end cap 200 and the lower end cap 300 is greater than the cylindrical thickness of the filter element body 100, so that the filter element body 100 is engaged in the middle by the upper end cap 200 and the lower end cap 300.

[0035] The top of the inner surfaces of the upper end cover 200 and the lower end cover 300 are provided with a plurality of raised textures 230. In this embodiment, the top of the inner surfaces of the upper end cover 200 and the lower end cover 300 are areas that respectively contact the tops of both ends of the filter element body 100. The added raised textures 230 increase the friction between the tops of both ends of the filter element body 100 and the upper end cover 200 and the lower end cover 300 when the upper end cover 200 and the lower end cover 300 are engaged with the filter element body 100, thereby increasing the stability of the engagement between the three.

[0036] In particular, the raised textures 230 are several annular protrusions that diffuse outward from the inner ring of the upper end cover 200 and the lower end cover 300, which match the annular surface of the top surface of the filter element body 100, further increasing the stability of the engagement between the upper end cover 200 and the lower end cover 300 and the filter element body 100.

[0037] Hot melt adhesive 240 is fixed between the filter element body 100 and the upper end cover 200, and between the filter element body 100 and the lower end cover 300. In this embodiment, when the upper end cover 200 and the lower end cover 300 are engaged with the two ends of the filter element body 100, hot melt adhesive 240 is added to the top of the inner surface of the upper end cover 200 and the lower end cover 300 to increase the adhesion between the upper end cover 200 and the lower end cover 300 and the filter element body 100. Furthermore, the hot melt adhesive film covers the raised texture 230 to further increase the bonding area between the upper end cover 200 and the lower end cover 300 and the filter element body 100, thereby improving stability.

[0038] Specifically, the hot melt adhesive 240 is preferably an EVA hot melt adhesive, a polyolefin (PO) hot melt adhesive, a polyamide (PA) hot melt adhesive, a polyurethane (PU) hot melt adhesive, or a polyester (PES) hot melt adhesive.

[0039] The annular structure is provided with a frustum-shaped protrusion 210; in this embodiment, a frustum-shaped protrusion is added to the top surface of the annular structure of the upper end cover 200 and the lower end cover 300 to facilitate the installation of the filter element 10 during application.

[0040] Furthermore, a gasket 220 is fixed on the frustum-shaped protrusion; in this embodiment, a gasket 220 is added above the frustum-shaped protrusion 210. The size of the gasket 220 corresponds to the top surface of the protrusion. The gasket 220 has a certain buffering capacity, so that the filter element 10 is not easily damaged by collision during application and installation.

[0041] It is worth noting that the surface of the gasket 220 has a certain friction, which makes the filter element 10 have better sealing and stability after application and installation. Preferably, the material of the gasket 220 is rubber, PP, silicone, PE or PET.

[0042] In this embodiment, the filter element body 100 also includes an inner nonwoven fabric 120 covering the outside of the mesh skeleton 110, and an outer nonwoven fabric 140 wrapping the outermost layer of the carbon fiber filter layer 130. The inner nonwoven fabric 120 covering the outside of the mesh skeleton 110 provides the necessary base layer conditions for the subsequent process of forming the carbon fiber filter layer 130 by adsorption of the carbon fiber composite system. The outer nonwoven fabric 140 wrapping the outermost layer of the carbon fiber filter layer 130 is used to protect the carbon fiber filter layer 130 after drying and curing. Therefore, the materials of the inner nonwoven fabric 120 and the outer nonwoven fabric 140 are preferably both polyester.

[0043] The protective mesh sleeve 150 is made of PP; in this embodiment, the outermost layer of the filter element body 100 is covered with a protective mesh sleeve 150, with a mesh size of 0.5 to 50 mesh.

[0044] The manufacturing steps of the carbon fiber filter element 10 include: immersing the inner nonwoven fabric 120 of the mesh skeleton 110 into a pre-prepared carbon fiber composite system; suctioning the mesh skeleton 110 to allow the carbon fiber composite system to be absorbed onto the surface of the inner nonwoven fabric 120, forming a carbon fiber filter layer 130 on the inner nonwoven fabric 120; then drying it in a drying equipment at 100°C to 150°C for 120 to 240 minutes; finally wrapping it with an outer nonwoven fabric 140 and a protective mesh sleeve 150 to form the filter element body 100; applying hot melt adhesive 240 to the raised texture areas of the upper end cap 200 and the lower end cap 300; and attaching them to both ends of the filter element body 100 to form the carbon fiber filter element 10.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A carbon fiber filter element, characterized in that, The filter element body includes a mesh skeleton, an inner non-woven fabric, a carbon fiber filter layer, an outer non-woven fabric, and a protective mesh sleeve, which are stacked sequentially from the inside out. The carbon fiber filter layer extends into the inner nonwoven fabric.

2. A carbon fiber filter element as described in claim 1, characterized in that, The filter element includes an upper end cap and a lower end cap, both of which are circular ring structures.

3. A carbon fiber filter element as described in claim 2, characterized in that, The ring structure is provided with a frustum-shaped protrusion.

4. A carbon fiber filter element as described in claim 3, characterized in that, A gasket is fixed on the frustum-shaped protrusion.

5. A carbon fiber filter element as described in claim 4, characterized in that, The gasket is made of rubber, PP, silicone, PE, or PET.

6. A carbon fiber filter element as described in claim 2, characterized in that, The filter element body is a hollow cylindrical structure; the inner wall of the hollow cylindrical structure is engaged with the inner ring of the circular structure; the outer wall of the hollow cylindrical structure is engaged with the outer ring of the circular structure.

7. A carbon fiber filter element as described in claim 2, characterized in that, The top of the inner surface of the upper and lower end caps is provided with several raised textures.

8. A carbon fiber filter element as described in claim 2, characterized in that, Hot melt adhesive is fixed between the filter element body and the upper end cover, and between the filter element body and the lower end cover.

9. A carbon fiber filter element as described in claim 1, characterized in that, Both the inner and outer nonwoven fabrics are made of polyester.

10. A carbon fiber filter element as described in claim 1, characterized in that, The protective mesh sleeve is made of PP.

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