Filter element base, filter element and fluid treatment equipment

Abstract

The utility model relates to a filter element base, a filter element and fluid treatment equipment. The filter element base comprises a base body, a first valve body and a control assembly. A first fluid channel is formed in the seat body, a first inlet and a first outlet are formed in the two ends of the first fluid channel respectively, and the first inlet is used for being in butt joint with a liquid outlet channel of the filter element; the first valve body is arranged on the seat body, a second inlet, a second outlet and a waste liquid outlet are formed in the first valve body, and the second inlet is in butt joint with the first outlet; and the control assembly is in driving connection with the first valve body, so that the second inlet selectively communicates with the second outlet or the waste liquid outlet. By means of the structure, the flow direction of fluid output from the filter element can be controlled through the control assembly, part of unneeded fluid is discharged to the waste liquid outlet, and the usability of the filter element base is improved.

Description

Technical Field

[0001] The utility model relates to the field of water purifiers, in particular to a filter element base, a filter element and a fluid treatment device. Background Art

[0002] In a fluid treatment device such as a water purifier, the input fluid is generally filtered by a filter element so as to output a fluid meeting the requirements of users. Therefore, a lot of filtering materials are usually arranged in the filter element, such as activated carbon materials. These filtering materials are loose and porous, and their pore structures have excellent adsorption properties, and can effectively adsorb substances such as macromolecular pigments, microorganisms, and macromolecular odors, and are cheap and easy to obtain.

[0003] Due to the porous structure of the filtering materials, they are easily broken into powders and other impurities during the installation process. These impurities will be output outside the filter element along with a part of the fluid initially treated by the fluid treatment device, resulting in pollution to the internal pipelines of the fluid treatment device and even possible blockage of the internal pipelines of the fluid treatment device. If the fluid treatment device is applied to the field of drinking water treatment, the impurities will also affect the color and taste of the outlet water. Since the particle sizes of these impurities are usually very fine, it is difficult to filter them out even by adding more filter layers, making it difficult for common fluid treatment devices to effectively treat this part of the fluid and affecting the usability of the fluid treatment device. Summary of the Utility Model

[0004] In view of this, the utility model provides a filter element base, a filter element and a fluid treatment device, which can treat a part of the fluid initially treated by the filter element.

[0005] To solve the above technical problems, a technical solution adopted by this application is: to provide a filter element base for docking with a filter element. The filter element base includes a seat body, a first valve body and a control component. The seat body forms a first fluid passage, and both ends of the first fluid passage are respectively provided with a first inlet and a first outlet. The first inlet is used for docking with the liquid outlet passage of the filter element; the first valve body is arranged on the seat body, and the first valve body is provided with a second inlet, a second outlet and a waste liquid outlet. The second inlet is docked with the first outlet; the control component is drivingly connected to the first valve body to selectively communicate the second inlet with the second outlet or the waste liquid outlet.

[0006] In a specific embodiment, the control component includes a timing member. When the liquid outlet passage is docked with the first inlet, the control component drives the first valve body to communicate the second inlet with the waste liquid outlet, and at the same time the timing member performs a countdown. The duration of the countdown is a first parameter; when the countdown ends, the control component drives the first valve body to communicate the second inlet with the second outlet.

[0007] In a specific embodiment, the control component includes a flowmeter. When the liquid outlet channel is docked with the first inlet, the control component drives the first valve body to connect the second inlet with the waste liquid outlet. Meanwhile, the flowmeter counts the flow rate of the fluid passing through the second inlet. When the flow rate recorded by the flowmeter is a second parameter, the control component drives the first valve body to connect the second inlet with the second outlet.

[0008] In a specific embodiment, the filter element base further includes a filter element. The filter element is relatively fixed to the seat body and is disposed corresponding to the second outlet in the first valve body and / or the first fluid passage. The filter element is used to filter the fluid output from the liquid outlet channel.

[0009] In a specific embodiment, the filter element includes filter packing, and the filter packing is filled between the second inlet and the second outlet and / or in the first fluid passage.

[0010] In a specific embodiment, the filter element includes a filter membrane. The filter membrane is relatively fixed to the surface of the seat body on the periphery of the first inlet. The filter membrane is used to isolate between the first inlet and the liquid outlet channel to filter the fluid entering the first fluid passage from the liquid outlet channel.

[0011] In a specific embodiment, the seat body is provided with a docking groove for fixing the filter element. The first inlet is opened at the bottom of the docking groove. The filter membrane is disposed in the docking groove and is relatively fixed to the surface of the seat body forming the docking groove, and the filter membrane covers the first inlet. When the docking groove is docked with the filter element, the surface of the filter membrane facing away from the first inlet faces the liquid outlet channel.

[0012] To solve the above technical problems, another technical solution adopted by this application is: to provide a filter element for docking with the filter element base as described in any one of the above. The filter element is provided with a liquid outlet channel for outputting the fluid in the filter element to the filter element base.

[0013] In a specific embodiment, the filter element further includes a filtering component and a filtering layer. The filtering component includes activated carbon. The filtering layer is fixed to the filter element on the periphery of the liquid outlet channel. The filtering layer is used to filter the activated carbon in the fluid flowing out of the liquid outlet channel.

[0014] To solve the above technical problems, another technical solution adopted by this application is: to provide a fluid processing device, which includes a filter element and a filter element base as described in any one of the above; the filter element is relatively fixed to the filter element base, and the filter element is provided with a liquid outlet channel for outputting the fluid in the filter element to the filter element base.

[0015] The beneficial effects of this application include: by docking one end of the first fluid passage to the liquid outlet channel of the filter element and arranging a first valve body at the other end of the first fluid passage, the control component can be used to control the second inlet of the first valve body to communicate with the waste liquid outlet, discharging the partially fluid with impurities, which is initially processed and output by the filter element, to the waste liquid outlet, and then making the second inlet communicate with the second outlet at the corresponding time, so as to normally output the remaining fluid without impurities, effectively separating and processing the fluid containing impurities, and improving the usability of the fluid processing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the fluid processing device provided by the present utility model;

[0018] Figure 2 For Figure 1 it is a schematic cross-sectional structure diagram of an embodiment of the filter element in along the D-D' section;

[0019] Figure 3 For Figure 2 it is an enlarged structural diagram of the A area in ;

[0020] Figure 4 For Figure 2 it is an enlarged structural diagram of the B area in ;

[0021] Figure 5 It is a schematic structural diagram of an embodiment of the filter element base provided by the present utility model;

[0022] Figure 6 For Figure 5 it is an enlarged structural diagram of the C area in .

[0023] Description of the reference numerals:

[0024] 1. Filter element base; 11. Body; 111. First fluid passage; 112. First inlet; 113. First outlet; 114. Docking groove; 12. First valve body; 121. Second inlet; 122. Second outlet; 123. Waste liquid outlet; 13. Control component; 131. Timing part; 132. Flowmeter; 14. Filter element; 141. Filter packing; 142. Filter membrane; 2. Filter element; 21. Liquid outlet channel; 22. Filter layer; 23. Filter component; 3. Fluid processing equipment. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The terms "first", "second", etc. in the specification and claims of the present invention and the above accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0027] Referring to "embodiment" or "implementation manner" herein means that a specific feature, structure or characteristic described in connection with the embodiment or implementation manner can be included in at least one embodiment of the present invention. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0028] In a fluid processing device such as a water purifier, the input fluid is generally filtered by a filter element, so as to output a fluid that meets the user's needs. Therefore, many filter materials, such as activated carbon materials, are usually provided in the filter element. These filter materials are loose and porous, and their pore structures have excellent adsorption properties, and can effectively adsorb substances such as pigment macromolecules, microorganisms, and odor macromolecules, and are cheap and easily available.

[0029] During the preparation process of these porous materials, there may be residual reagents, and due to the porous structure of the filter materials, they are prone to fragmentation and generation of impurities such as powders during installation. Whether it is reagents or powders, these impurities will be output outside the filter element along with a part of the fluid processed by the fluid treatment device for the first time, resulting in contamination of the pipelines inside the fluid treatment device and even possible blockage of the pipelines inside the fluid treatment device. If the fluid treatment device is applied to the field of drinking water treatment, the impurities will also affect the color and taste of the treated water, seriously affecting the normal use of the device and reducing the user experience.

[0030] However, since these impurities are usually in the form of macromolecular solutes, powders or even liquids and have extremely fine particle sizes, it is difficult to filter them out even by adding more filter layers. As a result, common fluid treatment devices currently available are difficult to effectively process this part of the fluid, affecting the usability of the fluid treatment device.

[0031] In order to improve or solve the above technical problems, the inventors of the present application have conducted long-term research and proposed at least the following embodiments.

[0032] Refer to Figure 1 、 5 、6, Figure 1 which is a schematic structural diagram of an embodiment of the fluid treatment device provided by the present utility model. Figure 5 which is a schematic structural diagram of an embodiment of the filter element base provided by the present utility model. Figure 6 For Figure 5 the enlarged structural diagram of area C in

[0033] The present application provides a filter element base (1), which is used to dock with a filter element (2) so as to divert the fluid output from the filter element (2) to the corresponding outlet. The filter element base (1) may specifically include a seat body (11), a first valve body (12) and a control component (13).

[0034] The filter element base (1) further includes a control component (13). The control component (13) is drivingly connected to the first valve body (12) to selectively communicate the second inlet (121) with the second outlet (122) or the waste liquid outlet (123). Among them, under the control of the control component (13), when the first inlet (112) just docks with the liquid outlet channel (21), the control component (13) can drive the second inlet (121) of the first valve body (12) to communicate with the waste liquid outlet (123). When the first inlet (112) has docked with the liquid outlet channel (21) for a period of time, the control component (13) can drive the second inlet (121) to communicate with the second outlet (122).

[0035] With the structure provided in this embodiment, when the filter element (2) just docks with the filter element base (1), the control component (13) can be used to control the second inlet (121) of the first valve body (12) to communicate with the waste liquid outlet (123), and discharge the part of the fluid with impurities, which is initially processed and output by the filter element (2), to the waste liquid outlet (123). Then, at the corresponding time, the second inlet (121) is made to communicate with the second outlet (122), so as to normally output the remaining fluid without impurities. Without manual operation, it can effectively separate the fluid containing impurities, thereby improving the usability of the fluid processing device (3).

[0036] Optionally, the control component (13) may include a timing member (131). When the liquid outlet channel (21) docks with the first inlet (112), the control component (13) can drive the first valve body (12) to enable the second inlet (121) to communicate with the waste liquid outlet (123). At the same time, the timing member (131) counts down the duration of the communication between the second inlet (121) and the waste liquid outlet (123). When the countdown ends, the control component (13) can drive the first valve body (12) to make the second inlet (121) communicate with the second outlet (122), so that the fluid meeting the requirements can be normally discharged through the second outlet (122). Among them, the duration of the countdown is the first parameter. In this embodiment, the amount of the fluid discharged through the waste liquid outlet (123) can be measured by calculating time, so as to minimize the loss of the fluid meeting the requirements while completely discharging the fluid containing impurities, and improve the usability of the filter element (2) seat body (11).

[0037] Optionally, the control component (13) may include a flow meter (132), which is used to calculate the flow rate of the fluid output by the filter element (2). When the liquid outlet channel (21) is docked with the first inlet (112), the control component (13) drives the first valve body (12) to connect the second inlet (121) with the waste liquid outlet (123), and the flow meter (132) measures the flow rate of the fluid passing through the second inlet (121). When the flow rate recorded by the flow meter (132) is a second parameter, the control component (13) can drive the first valve body (12) to connect the second inlet (121) with the second outlet (122), so that the fluid that meets the requirements can be discharged normally through the second outlet (122). In this embodiment, the amount of fluid discharged through the waste liquid outlet (123) can be measured by calculating the flow rate, so that while the fluid containing impurities is completely discharged, the loss of the fluid that meets the requirements is minimized, which can improve the availability of the filter element (2) seat (11).

[0038] Specifically, the flow meter (132) can be arranged in the first fluid passage (111) or at the second inlet (121) of the first valve body (12).

[0039] It should be noted that the first parameter and the second parameter can be set according to actual conditions such as the model of the filter element (2), the type of filter material, the total amount of filter material, the flow rate of the fluid output by the filter element (2), etc.

[0040] Optionally, the filter element base (1) may further include a filter element (14), which can filter impurities in the fluid output by the filter element (2). The filter element (14) is relatively fixed to the base body (11), and the second outlet (122) is provided on the first valve body (12) and / or the first fluid passage (111), so that the filter element (14) can be used to filter the fluid output by the liquid outlet channel (21), thereby improving the quality of the fluid output by the filter element base (1) and improving the usability of the filter element base (1).

[0041] Specifically, the filter element (14) may include a filter filler (141), which may be filled between the second inlet (121) and the second outlet (122) and / or in the first fluid passage (111), thereby filtering the fluid flowing through the first valve body (12) and / or the first fluid passage (111). The filter filler (141) may be detachably fixed relative to the seat body (11), so that when the filter filler (141) contains a large amount of impurities, a new filter filler (141) may be replaced to avoid clogging or contamination.

[0042] Optionally, the filter member (14) may further include a filter membrane (142). The filter membrane (142) is fixedly opposed to the surface of the seat body (11) around the first inlet (112). The filter membrane (142) is used to isolate between the first inlet (112) and the liquid outlet channel (21) to filter the fluid entering the first fluid passage (111) from the liquid outlet channel (21), so as to filter the fluid before it enters the first fluid passage (111), reduce the impurity content of the fluid in the first fluid passage (111), and reduce the probability of the subsequent first fluid passage (111) and the first valve body (12) being affected by impurities, and improve the stability of the filter element base (1).

[0043] Further, the seat body (11) may be provided with a docking groove (114). The docking groove (114) can be used to fix the filter element (2). One end of the liquid outlet channel (21) of the filter element (2) docked with the first inlet (112) may be arranged in the docking groove (114). The first inlet (112) may be opened at the bottom of the docking groove (114). The filter membrane (142) is arranged in the docking groove (114), and the filter membrane (142) may be fixedly opposed to the surface of the seat body (11) forming the docking groove (114), so that the filter membrane (142) can cover the first inlet (112), thereby isolating between the first inlet (112) and the liquid outlet channel (21).

[0044] Wherein, when the docking groove (114) is docked with the filter element (2), the surface of the filter membrane (142) facing away from the first inlet (112) faces the liquid outlet channel (21). After the fluid output from the liquid outlet channel (21) enters the docking groove (114), it must pass through the filtration of the filter membrane (142) before passing through the first inlet (112) and entering the first fluid passage (111), thereby reducing the probability of the first fluid passage (111) and the subsequent first valve body (12) being affected by impurities, and improving the stability of the filter element base (1).

[0045] Similarly, the filter membrane (142) and the seat body (11) may also be detachably connected. When the filter membrane (142) contains more impurities, a new filter membrane (142) can be replaced to avoid blockage or contamination.

[0046] Optionally, the filter membrane (142) may also be arranged at the second outlet (122). The filter membrane (142) near the second outlet (122) is fixed to the first valve body (12) around the second outlet (122), so as to cover the side of the second outlet (122) facing away from the second inlet (121), and can filter the fluid output from the second outlet (122), thereby further improving the quality of the output fluid.

[0047] Refer to Figure 1 、 2 、3, 4,Figure 1 Schematic cross-sectional structure diagram of an embodiment of the filter element along the D-D' section. Figure 3 is Figure 2 Enlarged structure diagram of area A in Figure 4 is Figure 2 Enlarged structure diagram of area B in An embodiment of the present application also provides a filter element (2) that can process the fluid introduced therein and output the processed fluid. Specifically, the filter element (2) is used to dock with the filter element base (1) as described in any of the above embodiments, so as to be installed in the fluid processing device (3) to work, and can introduce fluid through the filter element base (1) and output the processed fluid through the filter element base (1).

[0048] Among them, the filter element (2) may be provided with a liquid outlet channel (21), and the liquid outlet channel (21) is used to output the fluid in the filter element (2) to the filter element base (1). The liquid outlet channel (21) can be docked with the first inlet (112) of the filter element base (1), so that the fluid in the filter element (2) flows into the first inlet (112) through the liquid outlet channel (21), and then is output through the first fluid passage (111) communicating with the first inlet (112).

[0049] Specifically, the filter element (2) may further include a filtering component (23) and a filtering layer (22), and both the filtering component (23) and the filtering layer (22) are used to filter the fluid introduced into the filter element (2). The filtering component (23) may specifically include activated carbon, and the filtering layer (22) may be fixed to the filter element (2) on the periphery of the liquid outlet channel (21), so that the filtering layer (22) can filter the activated carbon powder in the fluid flowing out of the liquid outlet channel (21), which can reduce the probability of the activated carbon powder flowing out along with the fluid into the filter element base (1), or reduce the content of the activated carbon powder in the fluid output into the filter element base (1).

[0050] Optionally, the activated carbon in the filtering component (23) may be block activated carbon, activated carbon particles and / or activated carbon powder.

[0051] As Figure 2 shown, the liquid outlet channel (21) is arranged in the center of the filtering component (23), and a filtering layer (22) may be provided at one end of the liquid outlet channel (21) away from the first inlet (112), and the filtering layer (22) may be isolated between the filtering component (23) and the liquid outlet channel (21). After the fluid passes through the filtering component (23) provided with activated carbon, it can contact the surface of the side of the filtering layer (22) facing away from the liquid outlet channel (21), and the filtering layer (22) can filter the fluid, so that the content of the activated carbon powder in the fluid on the side of the filtering layer (22) facing the liquid outlet channel (21) is lower than that in the fluid on the other side of the filtering layer (22).

[0052] AsFigure 3 As shown, a filter layer (22) may also be provided at one end of the liquid outlet channel (21) that is docked with the first inlet (112). The filter layer (22) is isolated between the liquid outlet channel (21) and the first inlet (112), so that the content of activated carbon powder in the fluid on the side of the filter layer (22) facing the first inlet (112) is lower than that in the fluid on the other side of the filter layer (22).

[0053] The filter element (14), the filter layer (22), and the filter assembly (23) in the embodiments of the present application may include silver-loaded antibacterial non-woven fabric.

[0054] The embodiments of the present application also provide a fluid processing device (3) that can process the input fluid and output the processed fluid. The fluid processing device (3) may include a filter element (2) and a filter element base (1) as described in any of the above embodiments. The filter element (2) can be relatively fixed to the filter element base (1). The filter element (2) is provided with a liquid outlet channel (21) for outputting the fluid in the filter element (2) to the first inlet (112) of the filter element base (1), and then entering the second inlet (121) of the first valve body (12) through the first outlet (113) of the first fluid passage (111), so as to selectively flow into the waste liquid outlet (123) or the second outlet (122) under the control of the control assembly (13). Thus, a part of the fluid with impurities that is initially processed and output by the filter element (2) is discharged to the waste liquid outlet (123), and then the second inlet (121) is connected to the second outlet (122) at the corresponding time, so as to normally output the remaining fluid without impurities, which can effectively separate and process the fluid containing impurities and improve the usability of the fluid processing device (3).

[0055] In the present utility model, the mention of "embodiment" and "embodiment mode" means that the specific features, structures, or characteristics described in combination with the embodiment may be included in at least one embodiment of the present utility model. The appearance of the above phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present utility model can be combined with other embodiments. In addition, it should also be understood that the features, structures, or characteristics described in each embodiment of the present utility model can be combined arbitrarily without contradiction to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present utility model.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A filter element base (1) for docking with a filter element (2), characterized in that, The filter element base (1) includes: A seat body (11) formed with a first fluid passage (111). Both ends of the first fluid passage (111) are respectively provided with a first inlet (112) and a first outlet (113). The first inlet (112) is used to dock with the liquid outlet passage (21) of the filter element (2); A first valve body (12) disposed on the seat body (11). The first valve body (12) is provided with a second inlet (121), a second outlet (122), and a waste liquid outlet (123). The second inlet (121) is docked with the first outlet (113); A control assembly (13) drivingly connected to the first valve body (12) to selectively communicate the second inlet (121) with the second outlet (122) or the waste liquid outlet (123).

2. The filter element base (1) according to claim 1, wherein the control assembly (13) includes a timing member (131). When the liquid outlet passage (21) is docked with the first inlet (112), the control assembly (13) drives the first valve body (12) to communicate the second inlet (121) with the waste liquid outlet (123). At the same time, the timing member (131) performs a countdown, and the duration of the countdown is a first parameter. When the countdown ends, the control assembly (13) drives the first valve body (12) to communicate the second inlet (121) with the second outlet (122).

3. The filter element base (1) according to claim 1, wherein the control assembly (13) includes a flowmeter (132). When the liquid outlet passage (21) is docked with the first inlet (112), the control assembly (13) drives the first valve body (12) to communicate the second inlet (121) with the waste liquid outlet (123). At the same time, the flowmeter (132) counts the flow rate of the fluid passing through the second inlet (121). When the flow rate recorded by the flowmeter (132) is a second parameter, the control assembly (13) drives the first valve body (12) to communicate the second inlet (121) with the second outlet (122).

4. The filter element base (1) according to claim 1, wherein the filter element base (1) further includes a filter element (14). The filter element (14) is relatively fixed to the seat body (11) and is disposed corresponding to the second outlet (122) on the first valve body (12) and / or the first fluid passage (111). The filter element (14) is used to filter the fluid output from the liquid outlet passage (21).

5. The filter element base (1) according to claim 4, wherein the filter element (14) includes a filter packing (141). The filter packing (141) is filled between the second inlet (121) and the second outlet (122) and / or within the first fluid passage (111).

6. The filter element base (1) according to claim 4, wherein The filter element (14) includes a filter membrane (142), and the filter membrane (142) is relatively fixed to the surface of the seat body (11) on the periphery of the first inlet (112). The filter membrane (142) is used to isolate between the first inlet (112) and the liquid outlet channel (21) to filter the fluid flowing from the liquid outlet channel (21) into the first fluid passage (111).

7. The filter element base (1) according to claim 6, characterized in that The seat body (11) is provided with a docking groove (114), and the docking groove (114) is used to fix the filter element (2). The first inlet (112) is opened at the bottom of the docking groove (114). The filter membrane (142) is arranged in the docking groove (114) and is relatively fixed to the surface of the seat body (11) forming the docking groove (114), and the filter membrane (142) covers the first inlet (112); Wherein, when the docking groove (114) is docked with the filter element (2), the surface of the filter membrane (142) facing away from the first inlet (112) faces the liquid outlet channel (21).

8. A filter element (2), characterized in that, For docking with the filter element base (1) according to any one of claims 1 to 7 above, the filter element (2) is provided with a liquid outlet channel (21), and the liquid outlet channel (21) is used to output the fluid in the filter element (2) to the filter element base (1).

9. The filter element (2) according to claim 8, characterized in that The filter element (2) further includes a filter assembly (23) and a filter layer (22). The filter assembly (23) includes activated carbon. The filter layer (22) is fixed to the filter element (2) on the periphery of the liquid outlet channel (21), and the filter layer (22) is used to filter the activated carbon in the fluid flowing out of the liquid outlet channel (21).

10. A fluid processing device (3), characterized in that, Comprising: The filter element base (1) according to any one of claims 1 to 7; A filter element (2), which is relatively fixed to the filter element base (1). The filter element (2) is provided with a liquid outlet channel (21), and the liquid outlet channel (21) is used to output the fluid in the filter element (2) to the filter element base (1).

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