Filter element assembly

Abstract

The utility model discloses a filter element assembly which comprises a filter bottle and a plurality of filter elements arranged in the filter bottle, the plurality of filter elements comprise a central filter element and a plurality of peripheral filter elements, the central filter element and the filter bottle are coaxially arranged, the plurality of peripheral filter elements are distributed along the circumferential direction of the central filter element, and the peripheral filter elements are arranged in the central filter element. And each peripheral filter element is parallel to the central filter element. The large-flow pure water requirement is met, the space of the filter bottle is fully utilized due to the distribution mode of the filter elements, and therefore the size of the whole machine is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of water purifiers, and in particular to a filter element assembly. Background Technology

[0002] As people's living standards improve, some consumers demand whole-house pure water with a pure water flow rate of over 5000 gallons. The size of a single RO membrane is very large, which cannot be produced by current mature household membrane roll production lines. The defect rate of manual roll production is very high. The flow rate requirement can be met by setting multiple small filter cartridges, but this results in a large overall size of the machine. Summary of the Invention

[0003] In response to the aforementioned problems of existing water purifiers, the aim is to provide a filter cartridge assembly that can meet the requirements of high pure water flow while reducing the overall size of the device.

[0004] The specific technical solution is as follows:

[0005] A filter cartridge assembly includes a filter bottle and a plurality of filter cartridges disposed within the filter bottle. The plurality of filter cartridges include a central filter cartridge and a plurality of peripheral filter cartridges. The central filter cartridge is coaxially disposed with the filter bottle. The plurality of peripheral filter cartridges are distributed circumferentially along the central filter cartridge, and each peripheral filter cartridge is disposed parallel to the central filter cartridge.

[0006] As a further improvement and optimization of this solution, each of the filter elements is a reverse osmosis membrane filter element.

[0007] As a further improvement and optimization of this solution, the filter bottle has a water inlet, a pure water outlet and a wastewater outlet, and the wastewater outlet of each filter element is connected to the wastewater outlet, and the pure water outlet of each filter element is connected to the pure water outlet.

[0008] As a further improvement and optimization of this solution, the water inlet, the pure water outlet, and the wastewater outlet are all located at the top of the filter bottle.

[0009] As a further improvement and optimization of this solution, the filter bottle includes: a bottle body and a bottle bottom, wherein the bottle body has a bottom opening structure and the bottle bottom is matched and disposed at the bottom opening of the bottle body.

[0010] As a further improvement and optimization of this solution, a sealing ring is provided between the bottle body and the bottle bottom.

[0011] As a further improvement and optimization of this solution, the bottle body and the bottle bottom are connected by bolts.

[0012] As a further improvement and optimization of this solution, the bottle body and the bottle bottom are fixedly connected by spin welding.

[0013] The positive effects of the above technical solution compared with the existing technology are:

[0014] This invention, by setting a central filter element and several peripheral filter elements surrounding the central filter element, not only meets the requirements for high-flow-rate pure water, but also makes full use of the filter bottle space by distributing the filter elements, thereby reducing the overall size of the machine. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a filter element assembly according to the present invention;

[0016] Figure 2 This is a schematic diagram showing the distribution of several filter elements in a filter element assembly according to the present invention;

[0017] Figure 3 This is an assembly drawing of the peripheral filter element and peripheral end cap of a filter element assembly according to the present invention.

[0018] Figure 4 This is an assembly diagram of the central filter element and the collecting end cap of a filter element assembly according to the present invention;

[0019] Figure 5 This is an assembly drawing of the peripheral end cap and the collection end cap of a filter element assembly according to the present invention.

[0020] In the attached diagram: 1. Filter bottle; 2. Filter element; 3. Sealing ring; 11. Bottle body; 12. Bottle bottom; 21. Peripheral end cap; 22. Collection end cap; 23. Reverse osmosis membrane; 24. Central tube; 121. Inlet; 122. Pure water outlet; 123. Wastewater outlet; 211. Pure water outlet; 212. Wastewater outlet; 213. Pure water chamber; 214. Wastewater chamber; 221. Pure water main outlet; 222. Wastewater main chamber; 223. Wastewater inlet; 224. Wastewater main outlet; 225. Pure water inlet. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Figure 1 This is a cross-sectional view of a filter element assembly according to the present invention. Figure 2 This is a schematic diagram showing the distribution of several filter elements in a filter element assembly according to the present invention. Figure 3 This is an assembly drawing of the peripheral filter element and peripheral end cap of a filter element assembly according to the present invention. Figure 4 This is an assembly diagram of the central filter element and the collecting end cap of a filter element assembly according to this utility model. Figure 5 This is an assembly drawing of the peripheral end cap and the collection end cap of a filter element assembly according to this utility model. Figure 1-5 As shown, a preferred embodiment of a filter element 2 assembly is illustrated, including a filter bottle 1 and a plurality of filter elements 2 disposed within the filter bottle 1. The filter elements 2 include a central filter element and a plurality of peripheral filter elements. The central filter element is coaxially arranged with the filter bottle 1, and the plurality of peripheral filter elements are distributed circumferentially along the central filter element, with each peripheral filter element arranged parallel to the central filter element.

[0025] In this embodiment, by setting a central filter element and several peripheral filter elements surrounding the central filter element, not only are the requirements for high-flow pure water met, but the distribution of the filter elements 2 also makes full use of the space in the filter bottle 1, thereby reducing the overall size of the machine.

[0026] In a preferred embodiment, each filter element 2 is a reverse osmosis membrane filter element 2.

[0027] Furthermore, as a preferred embodiment, the filter bottle 1 has an inlet 121, a pure water outlet 122 and a wastewater outlet 123, and the wastewater outlet 212 of each filter element 2 is connected to the wastewater outlet 123, and the pure water outlet 211 of each filter element 2 is connected to the pure water outlet 122.

[0028] Furthermore, as a preferred embodiment, the water inlet 121, the pure water outlet 122, and the wastewater outlet 123 are all located at the top of the filter bottle 1.

[0029] Specifically, each peripheral filter element has a peripheral end cap 21 at the top. A pure water chamber 213 is formed between the peripheral end cap 21 and the central tube 24 of the peripheral filter element, and a wastewater chamber 214 is formed between the peripheral end cap 21 and the reverse osmosis membrane 23 of the peripheral filter element. The peripheral end cap 21 has a pure water outlet 211 that communicates with the pure water chamber 213 and a wastewater outlet 212 that communicates with the wastewater chamber 214.

[0030] Specifically, both the pure water outlet 211 and the wastewater outlet 212 are located on the side of the peripheral end cover 21.

[0031] Specifically, the top of the central filter element has a collection end cap 22, and a pure water main outlet 221 is coaxially provided on the collection end cap 22. The central tube 24 of the central filter element is connected to the pure water main outlet 221. Several pure water inlets 225 connected to the pure water main outlet 221 are distributed around the collection end cap 22. Several pure water outlets 211 are connected to several pure water inlets 225 respectively.

[0032] The bottom of the collection end cap 22 has a central hole coaxially connected to the pure water main outlet 221, and the central tube 24 of the central filter element is inserted into the central hole.

[0033] Several circumferential end caps 21 are distributed along the circumference of the collection end cap 22.

[0034] Specifically, the pure water main outlet 221 is connected to the pure water inlet 122.

[0035] Even better, several pure water outlets 211 are respectively connected to several pure water inlets 225.

[0036] Specifically, a wastewater main chamber 222 is formed between the collection end cap 22 and the reverse osmosis membrane 23 of the central filter element. The collection end cap 22 has a wastewater main outlet 224 that communicates with the wastewater main chamber 222. Several wastewater inlets 223 that communicate with the wastewater main chamber 222 are distributed around the collection end cap 22. Several wastewater outlets 212 are respectively connected to several wastewater inlets 223.

[0037] Even better, several wastewater outlets 212 are respectively connected to several wastewater inlets 223.

[0038] Even better, there are sealing rings between the outer wall of the wastewater outlet 212 and the inner wall of the wastewater inlet 223, and between the outer wall of the pure water inlet 225 and the inner wall of the wastewater inlet 223.

[0039] Even better, the pure water outlet 211 and wastewater outlet 212 on each side end cover 21 are distributed vertically.

[0040] Specifically, the wastewater outlet 224 is connected to the wastewater outlet 123.

[0041] More specifically, the wastewater outlet 224 and the pure water outlet 221 are located on the top of the collection end cover 22.

[0042] To be more specific, the pure water outlet 221 is inserted into the pure water inlet 122, and the wastewater outlet 224 is inserted into the wastewater inlet 123. Both the outer wall of the pure water outlet 221 and the inner wall of the pure water inlet 122, and the outer wall of the wastewater outlet 224 and the inner wall of the wastewater inlet 123, are equipped with sealing rings.

[0043] Furthermore, both the peripheral filter element and the central filter element include a central tube 24 and a reverse osmosis membrane 23 wound around the outside of the central tube 24;

[0044] More specifically, as raw water is transported from filter bottle 1 and the hydraulic pressure inside filter bottle 1 is increased, when the raw water passes through the reverse osmosis membrane 23 after passing through each side filter element, pure water enters the central tube 24 through the through hole on the side wall of the central tube 24, and then enters the pure water total outlet 221 through the pure water outlet 211 and the pure water inlet 225 in sequence. Wastewater flows into the wastewater total chamber 222 through the wastewater chamber 214, the wastewater outlet 212, and the wastewater inlet 223 in sequence.

[0045] When the raw water passes through the central filter element and the reverse osmosis membrane 23, the pure water enters the center through the through hole on the side wall of the central tube 24 and flows directly into the pure water outlet 221, while the wastewater flows directly into the wastewater chamber 222.

[0046] The pure water collected by the peripheral filter element and the central filter element and discharged from the pure water outlet 221 is discharged from the pure water outlet 122. The wastewater collected by the peripheral filter element and the central filter element and discharged from the wastewater outlet 222 is discharged from the wastewater outlet 123 through the wastewater outlet 224.

[0047] In this embodiment, the pure water filtered by each peripheral filter element flows sequentially through the pure water outlet 211 on the peripheral end cap 21 and the pure water inlet 225 on the collection end cap 22 into the pure water total outlet 221 on the collection end cap 22. It then merges with the pure water filtered by the central filter element and flows into the pure water total outlet 221, from which it is discharged. Similarly, the wastewater filtered by each peripheral filter element flows sequentially through the wastewater outlet 212 on the peripheral end cap 21 and the wastewater inlet 223 on the collection end cap 22 into the wastewater total chamber 222 within the collection end cap 22. It then merges with the wastewater filtered by the central filter element in the wastewater total chamber 222 and finally flows into the wastewater total outlet 224 on the collection end cap 22. By connecting multiple filter elements 2 in parallel, the complexity of the water circuit is simplified, reducing costs and the overall size of the machine is also reduced.

[0048] Furthermore, in a preferred embodiment, the filter bottle 1 includes a bottle body 11 and a bottle bottom 12, wherein the bottle body 11 has a bottom opening structure and the bottle bottom 12 is matched and disposed at the bottom opening of the bottle body 11.

[0049] Furthermore, as a preferred embodiment, a sealing ring 3 is provided between the bottle body 11 and the bottle bottom 12 to improve the sealing performance on both sides.

[0050] Furthermore, as a preferred embodiment, the bottle body 11 and the bottle bottom 12 are connected by bolts.

[0051] Furthermore, as a preferred embodiment, the bottle body 11 and the bottle bottom 12 are fixedly connected by spin welding.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter cartridge assembly, comprising a filter bottle and a plurality of filter cartridges disposed within the filter bottle, characterized in that, include: The filter elements include a central filter element and a plurality of peripheral filter elements. The central filter element is coaxially arranged with the filter bottle, and the plurality of peripheral filter elements are distributed circumferentially along the central filter element, with each peripheral filter element arranged parallel to the central filter element.

2. The filter element assembly according to claim 1, characterized in that, Each of the filter elements is a reverse osmosis membrane filter element.

3. The filter element assembly according to claim 2, characterized in that, The filter bottle has a water inlet, a pure water outlet, and a wastewater outlet. The wastewater outlet of each filter element is connected to the wastewater outlet, and the pure water outlet of each filter element is connected to the pure water outlet.

4. The filter element assembly according to claim 3, characterized in that, The water inlet, the pure water outlet, and the wastewater outlet are all located at the top of the filter bottle.

5. The filter element assembly according to any one of claims 1-4, characterized in that, The filter bottle includes a bottle body and a bottle bottom, wherein the bottle body has a bottom opening structure and the bottle bottom is matched and disposed at the bottom opening of the bottle body.

6. The filter element assembly according to claim 5, characterized in that, A sealing ring is provided between the bottle body and the bottle bottom.

7. The filter element assembly according to claim 6, characterized in that, The bottle body and the bottle bottom are connected by bolts.

8. The filter element assembly according to claim 5, characterized in that, The bottle body and the bottle bottom are fixedly connected by spin welding.

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