Filter element and water purification equipment

Abstract

The utility model discloses a filter element and water purification equipment, and relates to the technical field of water treatment.The filter element comprises a framework and a first filter layer, the first filter layer comprises at least two carbon fiber composite layers, and the first filter layer is wound around the outer surface of the framework; a first water flowing channel is formed between the first filter layer on the outermost ring and the first filter layer on the inner ring; and a second water flowing channel is formed between two adjacent carbon fiber composite layers in the first filtering layer. According to the technical scheme, the first filtering layers of the at least two carbon fiber composite layers are wound on the outer surface of the framework, and the first water flowing channel is formed between the first filtering layer on the outermost ring and the first filtering layer on the inner ring; a second water flowing channel is formed between two adjacent carbon fiber composite layers in the first filtering layer; by additionally arranging the first water flowing channel and the second water flowing channel, channels for water to enter the filter element are increased, and the filtering efficiency and the water passing amount of the filter element can be remarkably improved.

Description

Technical Field

[0001] The present application relates to the field of water treatment technology, and in particular to a filter element and water purification equipment. Background Art

[0002] Traditional reverse osmosis water purifiers typically use a four-stage filter element: a pre-filter element consisting of PP cotton, a pre-filter element containing granular activated carbon, a reverse osmosis filter, and a post-filter element containing granular activated carbon. In recent years, activated carbon fiber has been increasingly used in water purifiers due to its excellent adsorption properties. Using a single layer of activated carbon fiber as a pre-filter element can intercept sediment, rust, and organic matter in the water, as well as color and odor, and protect the membrane in the reverse osmosis filter element. However, due to the dense structure of the activated carbon fiber, the outer ring of the activated carbon fiber often clogs, resulting in low water flow through the entire filter element, while the inner ring of the activated carbon fiber is not fully utilized, and its performance cannot be fully realized. Utility Model Content

[0003] The main purpose of this application is to propose a filter element and water purification equipment, which aims to solve the problem that the existing carbon fiber filter element is prone to clogging, resulting in low water flow through the entire filter element.

[0004] To achieve the above objectives, the filter element proposed in this application includes:

[0005] skeleton;

[0006] The first filter layer includes at least two carbon fiber composite layers, and the first filter layer is wound around the outer surface of the skeleton; a first water flow channel is formed between the outermost first filter layer and the inner first filter layer; a second water flow channel is formed between two adjacent carbon fiber composite layers in the first filter layer.

[0007] In one embodiment, the carbon fiber composite layer includes a first non-woven fabric layer, a carbon fiber layer, and a second non-woven fabric layer that are stacked.

[0008] In one embodiment, the first non-woven fabric layer, the carbon fiber layer and the second non-woven fabric layer are pre-sewn into one body; or

[0009] The first non-woven fabric layer, the carbon fiber layer and the second non-woven fabric layer are laminated together; or

[0010] The first non-woven fabric layer, the carbon fiber layer and the second non-woven fabric layer are bonded together.

[0011] In one embodiment, the filter element further includes a second filter layer, and the second filter layer is wound on the outer surface of the first filter layer.

[0012] In one embodiment, the second filter layer includes a PP cotton layer.

[0013] In one embodiment, an end portion of the outermost circle of the first filter layer is connected to one end of the second filter layer.

[0014] In one embodiment, the outermost carbon fiber composite layer in the first filter layer is connected to one end of the second filter layer.

[0015] In one embodiment, a connection area is formed at a connection point between the first filter layer and the second filter layer, and a length of the connection area is 3 cm to 5 cm.

[0016] In one embodiment, the skeleton comprises a central tube, and the central tube is provided with a first water outlet and a second water outlet.

[0017] The present application also proposes a water purification device, comprising the filter element as described above.

[0018] The technical solution of the present application is to wind the first filter layer on the outer surface of the skeleton, wherein the first filter layer includes at least two layers of carbon fiber composite layers, and a first water flow channel is formed between the outermost first filter layer and the inner first filter layer; a second water flow channel is formed between two adjacent carbon fiber composite layers in the first filter layer; by adding the first water flow channel and the second water flow channel, the channels for water to enter the interior of the filter element are increased, and the probability of the filter element being blocked and resulting in low water flow rate of the entire filter element is reduced. By using at least two layers of carbon fiber composite layers to form the first filter layer, the filtration efficiency and water flow rate can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the winding structure of an embodiment of the filter element provided in this application;

[0021] Figure 2 This is a schematic diagram of the flattened structure of an embodiment of the filter element provided in this application;

[0022] Figure 3 This is a schematic structural diagram of the first filter layer and the second filter layer of another embodiment of the filter element provided in the present application.

[0023] Description of Figure Numbers:

[0024] 1. Skeleton; 2. First filter layer; 21. Carbon fiber composite layer; 211. First non-woven fabric layer; 212. Carbon fiber layer; 213. Second non-woven fabric layer; 22. First water flow channel; 23. Second water flow channel; 3. Second filter layer; 4. Connection area.

[0025] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0027] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] Traditional reverse osmosis water purifiers typically use a four-stage filter element: a pre-filter element consisting of PP cotton, a pre-filter element containing granular activated carbon, a reverse osmosis filter, and a post-filter element containing granular activated carbon. In recent years, activated carbon fiber has been increasingly used in water purifiers due to its excellent adsorption properties. Using a single layer of activated carbon fiber as a pre-filter element can intercept sediment, rust, and organic matter in the water, as well as color and odor, and protect the membrane in the reverse osmosis filter element. However, due to the dense structure of the activated carbon fiber, the outer ring of the activated carbon fiber often clogs, resulting in low water flow through the entire filter element, while the inner ring of the activated carbon fiber is not fully utilized, and its performance cannot be fully realized.

[0030] In order to solve the above problems, the present application proposes a filter element.

[0031] See also Figures 1 to 3 In one embodiment of the present application, the filter element includes a skeleton 1 and a first filter layer 2, wherein the first filter layer 2 includes at least two carbon fiber composite layers 21 and is wound around the outer surface of the skeleton 1. A first water flow channel 22 is formed between the outermost first filter layer 2 and the inner first filter layer 2, and a second water flow channel 23 is formed between two adjacent carbon fiber composite layers 21 in the first filter layer 2. By winding the first filter layer 2 around the outer surface of the skeleton 1, wherein the first filter layer 2 includes at least two carbon fiber composite layers 21, a first water flow channel 22 is formed between the outermost first filter layer 2 and the inner first filter layer 2, and a second water flow channel 23 is formed between two adjacent carbon fiber composite layers 21 in the first filter layer 2. By adding the first water flow channel 22 and the second water flow channel 23, more channels for water to enter the interior of the filter element are increased, reducing the probability of clogging of the filter element and resulting in low water flow rate of the entire filter element. By using at least two layers of carbon fiber composite layers 21 to form the first filter layer 2, the filtration efficiency and water flow rate can be significantly improved.

[0032] In one embodiment, the first filter layer 2 includes multiple carbon fiber composite layers 21. By adding a first water flow channel 22 and multiple second water flow channels 23, the passages for water to enter the filter element can be further increased, thereby increasing the water flow rate of the filter element. The use of multiple carbon fiber composite layers 21 can significantly improve filtration efficiency and water flow rate, allowing the inner carbon fiber composite layer 21 to be fully utilized.

[0033] In one embodiment, the carbon fiber composite layer 21 includes a first non-woven fabric layer 211, a carbon fiber layer 212, and a second non-woven fabric layer 213 that are stacked. The stacked first non-woven fabric layer 211, the carbon fiber layer 212, and the second non-woven fabric layer 213 can improve the filtration efficiency and water flow of the filter element while reducing the possibility of clogging. The non-woven fabric layer can provide preliminary filtration, intercept larger particles, and reduce contamination of the internal carbon fiber layer 212. The first non-woven fabric layer 211 and the second non-woven fabric layer can be made of polypropylene or other synthetic fiber materials. The fiber material has a high porosity and air permeability, which can ensure that suspended particles are removed while water flows through. The carbon fiber layer 212 has the advantage of strong adsorption capacity, effectively removing residual chlorine, organic matter, odors, etc. from the water. In addition, the compact structure of the carbon fiber layer 212 provides high filtration accuracy. The addition of the first non-woven fabric layer 211 and the second non-woven fabric layer 213 can increase the water flow between adjacent carbon fiber layers 212, preventing blockage in the compact structure of the carbon fiber layer 212 and improving the water flow of the entire filter element. The first non-woven fabric layer 211 and the second non-woven fabric layer 213 can intercept larger particulate matter, reducing the burden on the internal carbon fiber layer 212, allowing the carbon fiber layer 212 to more effectively absorb organic matter, discoloration, and odors in the water.

[0034] In one embodiment, the first non-woven fabric layer 211, the carbon fiber layer 212 and the second non-woven fabric layer 213 are pre-sewn into one piece; through the pre-sewing technology, different material layers can be tightly sewn together to form an integral structure, which not only improves the mechanical strength of the filter element, but also makes the filter element more stable under high-pressure environments, reduces the possibility of displacement and separation between material layers, and at the same time improves the production efficiency of the filter element.

[0035] In one embodiment, the first non-woven fabric layer 211, the carbon fiber layer 212, and the second non-woven fabric layer 213 are laminated together. Through the lamination process, the different material layers are tightly combined to form a stable overall structure, which also improves the mechanical strength of the filter element. The lamination process also allows for precise control of the material usage of the first non-woven fabric layer 211, the carbon fiber layer 212, and the second non-woven fabric layer 213, reducing material waste during the production process.

[0036] In one embodiment, the first non-woven fabric layer 211, the carbon fiber layer 212, and the second non-woven fabric layer 213 are bonded together. Using a high-strength bonding material, such as carbon fiber reinforced plastic (CFRP), can improve the interlayer toughness of the material. The addition of the first non-woven fabric layer 211 and the second non-woven fabric layer 213 effectively prevents cracks in the carbon fiber layer 212, thereby improving the material's impact resistance.

[0037] In one embodiment, the filter element further includes a second filter layer 3, which is wrapped around the outer surface of the first filter layer 2. Adding the second filter layer 3 outside the first filter layer 2 provides an additional filtration stage for the filter element, enabling it to more effectively remove impurities from the water and improving overall filtration efficiency. In addition to the first filter layer 2 and the second filter layer 3, the filter element can also be equipped with additional filter layers to further enhance its filtration effectiveness.

[0038] In one embodiment, the second filter layer 3 includes a PP cotton layer. The PP cotton layer is a non-woven fabric made of polypropylene (PP) resin through a melt-blown process; the PP cotton layer serves as a pre-filter layer material and has excellent filtering function, which can effectively remove particulate impurities in the water, such as mud, rust, red worms, etc. The filtration accuracy of PP cotton is generally 5 microns, which can filter out large particulate impurities in the water. PP cotton uses polypropylene fibers that rely on self-adhesion and entanglement to form a three-dimensional tortuous microporous structure with a larger surface area and higher porosity, which allows water to pass through the PP cotton quickly, ensuring a larger filtration flow. In addition, the PP cotton layer can also provide additional physical protection for the internal first filter layer 2 and the filter element frame 1, reducing damage to the internal structure caused by external impact. This protective effect helps to extend the service life of the filter element and maintain the stability and integrity of the filter element.

[0039] In one embodiment, the end of the outermost first filter layer 2 is connected to one end of the second filter layer 3. By connecting the outermost end of the first filter layer 2 to the second filter layer 3, the overall structural stability of the filter element can be enhanced, which helps to ensure that the filter element maintains its shape and integrity when subjected to water pressure and reduces the possibility of displacement and separation between material layers. The connection between the first filter layer 2 and the second filter layer 3 allows the water flow to stably pass through multiple filtration stages when passing through the filter element, improving the overall filtration efficiency and ensuring that impurities in the water are effectively removed after being filtered through different filter layers. By improving the structural stability between the first filter layer 2 and the second filter layer 3, the water flow distribution when the water body passes through the filter element is made more uniform. The uniform water flow distribution helps to increase the water flow rate of the filter element, and also makes the filtration effect of the filter element better.

[0040] In one embodiment, the outermost carbon fiber composite layer 21 in the first filter layer 2 is connected to one end of the second filter layer 3. By connecting the outermost carbon fiber composite layer 21 in the first filter layer 2 to one end of the second filter layer 3, the second filter layer 3 is prevented from affecting the water flow rate of the first water flow channel 22 and the second water flow channel 23.

[0041] In one embodiment, a connection area 4 is formed at the connection between the first filter layer 2 and the second filter layer 3, and the length of the connection area 4 is 3 cm to 5 cm. By limiting the length of the connection area 4, the connection strength between the two filter layers can be precisely controlled, which helps to enhance the overall structural stability of the filter element and reduce structural deformation or damage under the impact of high-pressure water flow. By establishing a relatively short connection area 4 between the first filter layer 2 and the second filter layer 3, the impact on the water flow rate inside the filter element can be minimized, ensuring water flow and filtration effect. The length of the connection area 4 is set to 3 cm to 5 cm, which can reduce unnecessary material use, thereby reducing the manufacturing cost of the filter element; the existence of the connection area 4 can serve as a transition zone to guide the water flow to smoothly transition from the first filter layer 2 to the second filter layer 3, helping to maintain a uniform distribution of water flow and improve filtration efficiency.

[0042] In one embodiment, the skeleton 1 includes a central tube having a first water outlet and a second water outlet. The central tube provides a central support point for the filter element, so that the first filter layer 2 and the second filter layer 3 can be wound or stacked around the central tube, which helps to improve the mechanical stability of the filter element and ensure that the filter element will not be deformed or damaged when subjected to working pressure. The central tube serves as a channel for liquid flow and can guide water to flow through the filter element, so that the filtered liquid (such as pure water) is collected through the central tube and flows out of the first water outlet at one end, while the unfiltered liquid or concentrate (the portion containing impurities) flows out of the second water outlet at the other end.

[0043] The technical solution of the present application is to wind the first filter layer 2 around the outer surface of the skeleton 1, wherein the first filter layer 2 includes at least two layers of carbon fiber composite layers 21, and a first water flow channel 22 is formed between the outermost first filter layer 2 and the inner first filter layer 2; a second water flow channel 23 is formed between two adjacent carbon fiber composite layers 21 in the first filter layer 2; by adding the first water flow channel 22 and the second water flow channel 23, the channels for water to enter the interior of the filter element are increased, and the probability of the filter element being blocked and resulting in low water flow rate of the entire filter element is reduced. By using at least two layers of carbon fiber composite layers 21 to form the first filter layer 2, the filtration efficiency and water flow rate can be significantly improved.

[0044] The present application also proposes a water purification device, which includes a filter element. The specific structure of the filter element refers to the above embodiment. Since the present water purification device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0045] The above are merely exemplary embodiments of the present application and are not intended to limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A filter element, characterized in that: include: skeleton; a first filter layer, the first filter layer comprising at least two carbon fiber composite layers, the first filter layer being wound around the outer surface of the skeleton; A first water flow channel is formed between the first filter layer of the outermost circle and the first filter layer of the inner circle; A second water flow channel is formed between two adjacent carbon fiber composite layers in the first filter layer.

2. The filter element according to claim 1, wherein The carbon fiber composite layer includes a first non-woven fabric layer, a carbon fiber layer, and a second non-woven fabric layer that are stacked.

3. The filter element according to claim 2, characterized in that The first non-woven fabric layer, the carbon fiber layer and the second non-woven fabric layer are pre-sewn into one piece; or, The first non-woven fabric layer, the carbon fiber layer and the second non-woven fabric layer are laminated together; or The first non-woven fabric layer, the carbon fiber layer and the second non-woven fabric layer are bonded together.

4. The filter element according to any one of claims 1 to 3, characterized in that The filter element further includes a second filter layer, which is wound around the outer surface of the first filter layer.

5. The filter element according to claim 4, characterized in that The second filter layer includes a PP cotton layer.

6. The filter element according to claim 4, characterized in that The end of the outermost circle of the first filter layer is connected to one end of the second filter layer.

7. The filter element according to claim 6, wherein: The outermost carbon fiber composite layer in the first filter layer is connected to one end of the second filter layer.

8. The filter element according to claim 4, wherein: A connection area is formed at a connection point between the first filter layer and the second filter layer, and a length of the connection area is 3 cm to 5 cm.

9. The filter element according to any one of claims 1 to 3, characterized in that The skeleton comprises a central tube, and the central tube is provided with a first water outlet and a second water outlet.

10. A water purification device, characterized in that: Comprising the filter element according to any one of claims 1 to 9.

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