End cover for parallel connection of filter elements
By designing end caps for filter elements in parallel, the water path structure of multiple filter elements in the water purifier is simplified, achieving high flow requirements while reducing the size and cost of the entire machine.
Patent Information
- Application Number
- CN202422541922.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-21
AI Technical Summary
When multiple filter cartridges are used in parallel in existing water purifiers, the water path becomes complicated and the overall size of the machine becomes large, making it difficult to meet high flow requirements.
An end cap for parallel filter elements is designed. By connecting the central filter element and the peripheral filter elements in parallel, the water channel structure is simplified. Pure water and wastewater are collected and discharged through different outlets and inlets respectively, reducing the size of the entire machine.
The complexity of the water path is simplified, the cost and size of the whole machine are reduced, and at the same time the demand for high flow rate pure water is met.
Smart Images
Figure CN223304188U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water purifiers, in particular to an end cover for parallel connection of filter elements. Background Art
[0002] With the improvement of people's living standards, some consumers demand pure water throughout the house, and the pure water flow rate is required to be more than 5,000 gallons. In order to meet the flow rate requirements, multiple filter elements are generally required to be used in parallel, but the water circuit of multiple filter element components in parallel is complicated and the size of the whole machine is large. Summary of the Invention
[0003] In view of the above problems of existing water purifiers, the present invention aims to provide an end cover for parallel connection of filter elements, which simplifies the parallel water circuit, reduces the cost and reduces the size of the entire machine.
[0004] The specific technical solutions are as follows:
[0005] A filter element parallel connection end cap, used for connecting a plurality of peripheral filter elements and a central filter element, all of which are reverse osmosis membrane filter elements, in parallel, comprising: a plurality of peripheral end caps and a collection end cap, each of which is used to connect a peripheral filter element, a pure water cavity formed between the peripheral end cap and the central tube of the peripheral filter element, and a wastewater cavity formed between the peripheral end cap and the reverse osmosis membrane of the peripheral filter element, and a pure water outlet connected to the pure water cavity and a wastewater outlet connected to the wastewater cavity on the peripheral end cap;
[0006] The collecting end cap is used to connect to a central filter element. The collecting end cap has a coaxial pure water main outlet. The central tube of the central filter element is connected to the pure water main outlet. The collecting end cap is provided with a plurality of pure water inlets connected to the pure water main outlet. The plurality of pure water outlets are respectively connected to the plurality of pure water inlets.
[0007] A total wastewater cavity is formed between the collecting end cover and the reverse osmosis membrane of the central filter element. The collecting end cover has a total wastewater outlet connected to the total wastewater cavity. A plurality of wastewater inlets connected to the total wastewater cavity are distributed around the collecting end cover, and the plurality of wastewater outlets are respectively connected to the plurality of wastewater inlets.
[0008] As a further improvement and optimization of this solution, several of the wastewater outlets are respectively plugged into several of the wastewater inlets.
[0009] As a further improvement and optimization of this solution, several of the pure water outlets are respectively plugged into several of the pure water inlets.
[0010] As a further improvement and optimization of this solution, there are sealing rings between the outer wall of the wastewater outlet and the inner wall of the wastewater inlet, and between the outer wall of the pure water inlet and the inner wall of the wastewater inlet.
[0011] As a further improvement and optimization of this solution, the pure water outlet and the waste water outlet are both located on the side of the peripheral end cover.
[0012] As a further improvement and optimization of this solution, the pure water outlet and the waste water outlet on each peripheral end cover are distributed up and down.
[0013] As a further improvement and optimization of this solution, the wastewater main outlet and the pure water main outlet are arranged on the top of the collecting end cover.
[0014] As a further improvement and optimization of this solution, the bottom of the collecting end cover has a central hole coaxially connected to the pure water main outlet, and the central tube of the central filter element is inserted into the central hole.
[0015] Compared with the prior art, the above technical solution has the following positive effects:
[0016] In the present invention, the pure water filtered by each peripheral filter element in turn passes through the pure water outlet on the peripheral end cover and the pure water inlet on the collecting end cover and flows into the pure water total outlet on the collecting end cover, and is concentrated and merged with the pure water filtered by the central filter element to the pure water total outlet, and is discharged centrally from the pure water total outlet. The waste water filtered by each peripheral filter element in turn passes through the wastewater outlet on the peripheral end cover and the wastewater inlet on the collecting end cover and flows into the wastewater total cavity in the collecting end cover, and is merged with the wastewater filtered by the central filter element in the wastewater total cavity, and is finally discharged centrally from the wastewater total outlet on the collecting end cover. When multiple groups of filter elements are connected in parallel, the complexity of the water path is simplified, the cost is reduced, and the size of the entire machine is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a cross-sectional view of a filter element assembly of the present utility model;
[0018] Figure 2 This is a schematic diagram of the distribution of several filter elements of a filter element assembly of the utility model;
[0019] Figure 3 This is an assembly diagram of a peripheral filter element and a peripheral end cover of a filter element assembly of the present invention;
[0020] Figure 4 This is an assembly diagram of the central filter element and the collection end cover of a filter element assembly of the utility model;
[0021] Figure 5 This is an assembly diagram of the peripheral end cover and the collection end cover of a filter element assembly of the present invention;
[0022] In the accompanying drawings: 1. filter bottle; 2. filter element; 3. sealing ring; 11. bottle body; 12. bottle bottom; 21. circumferential end cap; 22. collecting end cap; 23. reverse osmosis membrane; 24. central tube; 121. water inlet; 122. pure water inlet; 123. wastewater inlet; 211. pure water outlet; 212. wastewater outlet; 213. pure water cavity; 214. wastewater cavity; 221. pure water total outlet; 222. wastewater total cavity; 223. wastewater inlet; 224. wastewater total outlet; 225. pure water inlet. DETAILED DESCRIPTION
[0023] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate 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 solely for descriptive purposes and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0026] Figure 1 This is a cross-sectional view of a filter element assembly of the utility model. Figure 2 This is a schematic diagram of the distribution of several filter elements of a filter element assembly of the utility model. Figure 3 This is an assembly diagram of the peripheral filter element and the peripheral end cover of a filter element assembly of the utility model. Figure 4 This is an assembly diagram of the central filter element and the collection end cover of a filter element assembly of the utility model. Figure 5 This is an assembly diagram of the peripheral end cover and the collection end cover of a filter element assembly of the present invention, as shown in FIG. Figure 1-5As shown, a filter element 2 assembly of a preferred embodiment is shown, including a filter bottle 1 and a plurality of filter elements 2 arranged in the filter bottle 1, characterized in that it includes: the plurality of 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, the plurality of peripheral filter elements are distributed along the circumference of the central filter element, and each peripheral filter element is arranged parallel to the central filter element.
[0027] In this embodiment, a central filter element and several peripheral filter elements surrounding the central filter element are provided, which not only meets the requirement of large flow rate pure water, but also the distribution of the filter element 2 fully utilizes the space of the filter bottle 1, thereby reducing the size of the entire machine.
[0028] As a preferred embodiment, each filter element 2 is a reverse osmosis membrane filter element 2.
[0029] Furthermore, as a preferred embodiment, the filter bottle 1 has a water inlet 121, a pure water inlet 122 and a waste water inlet 123, the waste water outlet 212 of each filter element 2 is connected to the waste water inlet 123, and the pure water outlet 211 of each filter element 2 is connected to the pure water inlet 122.
[0030] Furthermore, as a preferred embodiment, the water inlet 121 , the pure water inlet 122 , and the waste water inlet 123 are all arranged at the top of the filter bottle 1 .
[0031] Specifically, each peripheral filter element has a peripheral end cap 21 at the top. A pure water cavity 213 is formed between the peripheral end cap 21 and the central tube 24 of the peripheral filter element, and a waste water cavity 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 communicating with the pure water cavity 213 and a waste water outlet 212 communicating with the waste water cavity 214.
[0032] Specifically, the pure water outlet 211 and the waste water outlet 212 are both located on the side of the peripheral end cover 21 .
[0033] Specifically, the top of the central filter element has a collecting end cap 22, and a pure water main outlet 221 is coaxially formed on the collecting end cap 22. The central tube 24 of the central filter element is connected to the pure water main outlet 221. The collecting end cap 22 is provided with a plurality of pure water inlets 225 connected to the pure water main outlet 221. The plurality of pure water outlets 211 are respectively connected to the plurality of pure water inlets 225.
[0034] The bottom of the collecting end cover 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.
[0035] Several peripheral end covers 21 are distributed along the peripheral side of the collecting end cover 22 .
[0036] Specifically, the pure water main outlet 221 is connected to the pure water inlet 122 .
[0037] More preferably, the plurality of pure water outlets 211 are respectively plugged into the plurality of pure water inlets 225 .
[0038] Specifically, a total wastewater cavity 222 is formed between the collecting end cover 22 and the reverse osmosis membrane 23 of the central filter element. The collecting end cover 22 has a total wastewater outlet 224 connected to the total wastewater cavity 222. A plurality of wastewater inlets 223 connected to the total wastewater cavity 222 are distributed around the collecting end cover 22, and the plurality of wastewater outlets 212 are respectively connected to the plurality of wastewater inlets 223.
[0039] More preferably, the plurality of wastewater outlets 212 are respectively plugged into the plurality of wastewater inlets 223 .
[0040] More preferably, a sealing ring is provided 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 .
[0041] More preferably, the pure water outlet 211 and the waste water outlet 212 on each peripheral end cover 21 are distributed up and down.
[0042] Specifically, the total wastewater outlet 224 is connected to the wastewater outlet 123 .
[0043] More specifically, the wastewater main outlet 224 and the pure water main outlet 221 are provided at the top of the collecting end cover 22 .
[0044] To be further specific, the pure water main outlet 221 is plugged into the pure water port 122, the waste water main outlet 224 is plugged into the waste water port 123, and there are sealing rings between the outer wall of the pure water main outlet 221 and the inner wall of the pure water port 122, and between the outer wall of the waste water main outlet 224 and the inner wall of the waste water port 123.
[0045] Furthermore, both the peripheral filter element and the central filter element include a central tube 24 and a reverse osmosis membrane 23 wound onto the outside of the central tube 24;
[0046] More specifically, as raw water is transported from the filter bottle 1 and the hydraulic pressure in the filter bottle 1 increases, the raw water passing through each peripheral filter element passes through the reverse osmosis membrane 23, and pure water enters the central tube 24 through the through holes on the side wall of the central tube 24, and enters the pure water main outlet 221 through the pure water outlet 211 and the pure water inlet 225 in sequence. Wastewater flows into the wastewater main chamber 222 through the wastewater chamber 214, the wastewater outlet 212, and the wastewater inlet 223 in sequence.
[0047] When the raw water passing through the central filter element passes through the reverse osmosis membrane 23, the pure water enters the center through the through holes on the side wall of the central tube 24 and directly flows into the pure water main outlet 221, and the waste water directly flows into the waste water main chamber 222;
[0048] The pure water collected by the peripheral filter element and the central filter element to the pure water total outlet 221 is discharged centrally from the pure water port 122 , and the waste water collected by the peripheral filter element and the central filter element to the waste water total cavity 222 is discharged centrally from the waste water port 123 through the waste water total outlet 224 .
[0049] In this embodiment, the pure water filtered by each peripheral filter element flows into the pure water total outlet 221 on the collecting end cover 22 through the pure water outlet 211 on the peripheral end cover 21 and the pure water inlet 225 on the collecting end cover 22 in turn, and is concentrated and converged with the pure water filtered by the central filter element to the pure water total outlet 221, and is discharged centrally from the pure water total outlet 221. The waste water filtered by each peripheral filter element flows into the wastewater total cavity 222 in the collecting end cover 22 through the wastewater outlet 212 on the peripheral end cover 21 and the wastewater inlet 223 on the collecting end cover 22 in turn, and is converged with the wastewater filtered by the central filter element in the wastewater total cavity 222, and is finally discharged centrally from the wastewater total outlet 224 on the collecting end cover 22. When multiple groups of filter elements 2 are connected in parallel, the complexity of the water path is simplified, the cost is reduced, and the size of the entire machine is reduced.
[0050] Furthermore, as a preferred embodiment, the filter bottle 1 includes: a bottle body 11 and a bottle bottom 12 . The bottle body 11 is a bottom-opening structure, and the bottle bottom 12 is matched and arranged at the bottom opening of the bottle body 11 .
[0051] 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.
[0052] Furthermore, as a preferred embodiment, the bottle body 11 and the bottle bottom 12 are connected by bolts.
[0053] Furthermore, as a preferred embodiment, the bottle body 11 and the bottle bottom 12 are fixedly connected by spin welding.
[0054] 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. An end cap for parallel connection of filter elements, used for connecting several peripheral filter elements and a central filter element, all of which are reverse osmosis membrane filter elements, in parallel, characterized in that: include: A plurality of peripheral end caps and collection end caps, each peripheral end cap is used to connect to a peripheral filter element, a pure water cavity is formed between the peripheral end cap and the central tube of the peripheral filter element, and a waste water cavity is formed between the peripheral end cap and the reverse osmosis membrane of the peripheral filter element, and the peripheral end cap has a pure water outlet connected to the pure water cavity and a waste water outlet connected to the waste water cavity; The collecting end cap is used to connect to a central filter element. The collecting end cap has a coaxial pure water main outlet. The central tube of the central filter element is connected to the pure water main outlet. The collecting end cap is provided with a plurality of pure water inlets connected to the pure water main outlet. The plurality of pure water outlets are respectively connected to the plurality of pure water inlets. A total wastewater cavity is formed between the collecting end cover and the reverse osmosis membrane of the central filter element. The collecting end cover has a total wastewater outlet connected to the total wastewater cavity. A plurality of wastewater inlets connected to the total wastewater cavity are distributed around the collecting end cover, and the plurality of wastewater outlets are respectively connected to the plurality of wastewater inlets.
2. The end cap for parallel connection of filter elements according to claim 1, characterized in that: The plurality of wastewater outlets are respectively plugged into the plurality of wastewater inlets.
3. The end cap for parallel connection of filter elements according to claim 2, characterized in that: The plurality of pure water outlets are respectively plugged into the plurality of pure water inlets.
4. The end cap for parallel connection of filter elements according to claim 3, characterized in that: A sealing ring is provided between the outer wall of the wastewater outlet and the inner wall of the wastewater inlet, and between the outer wall of the pure water inlet and the inner wall of the wastewater inlet.
5. The end cap for parallel connection of filter elements according to claim 1, characterized in that: The pure water outlet and the waste water outlet are both located on the side of the peripheral end cover.
6. The end cap for parallel connection of filter elements according to claim 5, characterized in that: The pure water outlet and the waste water outlet on each side end cover are distributed up and down.
7. The end cap for parallel connection of filter elements according to claim 1, characterized in that: The wastewater main outlet and the pure water main outlet are arranged on the top of the collecting end cover.
8. The end cap for parallel connection of filter elements according to claim 1, characterized in that: The bottom of the collecting end cover is provided with a central hole which is coaxially connected with the pure water main outlet, and the central tube of the central filter element is inserted into the central hole.