Active hydrogen preparation filter element

Abstract

The utility model provides an active hydrogen preparation filter element, relates to the technical field of water purification equipment, and aims to solve the problem of low hydrogen production efficiency of a filter element in the prior art, the active hydrogen preparation filter element comprises an inner core assembly, the inner core assembly comprises an inner core pipe body and a plurality of microwell plates, the inner core pipe body comprises a hollow upper end cover, a hollow lower end cover and at least two intermediates, the hollow upper end cover, the at least two middle bodies and the hollow lower end cover are sequentially connected from top to bottom in an inserted mode. The microporous plates are respectively arranged at the inserting part of the hollow upper end cover and the middle bodies, the inserting part of two adjacent middle bodies and the inserting part of the middle bodies and the hollow lower end cover, the microporous plates are arranged along the cross section of the inner core pipe body, and the inner cavities of the plurality of middle bodies are filled with active hydrogen production materials. The active hydrogen preparation filter element inner core assembly is convenient to assemble, the production efficiency is improved, water flow can fully contact and react with active hydrogen production materials, and the hydrogen production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to an active hydrogen preparation filter element. Background Art

[0002] With the rapid development of social economy, people's living standards are constantly improving, and the quality requirements for drinking water are getting higher and higher. Hydrogen has a selective antioxidant effect and can effectively neutralize harmful hydroxyl free radicals and nitrite anions in the human body. Hydrogen-rich water can activate human cells, delay aging, and have a conditioning effect on some diseases, which can improve the body's immune performance.

[0003] There are two main forms of preparing hydrogen-rich water. One is to directly introduce hydrogen into water to prepare hydrogen-water solutions of different concentrations; the other is to decompose hydrogen-containing compounds. The commonly used method is to dissolve hydrogen-producing materials in water to produce hydrogen, and then prepare hydrogen-rich water solutions as needed. Therefore, some people have designed filter elements that can produce hydrogen. For example, application No. 201510590172.3 discloses a hydrogen-rich composite filter element, including a filter cartridge made of porous filter material, with upper and lower end covers provided at the upper and lower ends of the filter cartridge. The interior of the filter cartridge is a high-density activated carbon rod, and the center of the high-density activated carbon rod is provided with an inner core that can produce hydrogen. The upper end cover is provided with a screw thread water outlet, and the lower end cover is a fully sealed type to seal the bottom end of the filter element. This composite filter element only relies on the inner core in the center to produce hydrogen, and the inner core is only in contact with the water flow through the surface. The hydrogen production is limited, and the installation is complicated and inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide an active hydrogen preparation filter element to solve the problem of low hydrogen production efficiency of the filter element in the prior art. The inner core component of the active hydrogen preparation filter element of the utility model is easy to assemble, improves production efficiency, and the water flow can fully contact and react with the active hydrogen production material to improve the hydrogen production efficiency.

[0005] The utility model provides an active hydrogen preparation filter element, comprising an inner core component, wherein the inner core component comprises an inner core tube body and a plurality of microporous plates, wherein the inner core tube body comprises a hollow upper end cover, a hollow lower end cover and at least two intermediate bodies, wherein the hollow upper end cover, the at least two intermediate bodies and the hollow lower end cover are sequentially connected by plug-in from top to bottom, wherein the microporous plates are respectively arranged at the plug-in joint between the hollow upper end cover and the intermediate body, at the plug-in joint between two adjacent intermediate bodies and at the plug-in joint between the intermediate body and the hollow lower end cover, and wherein the microporous plates are arranged along the cross section of the inner core tube body, and wherein the inner cavities of the plurality of intermediate bodies are filled with active hydrogen production materials.

[0006] As a preferred solution of the utility model, an inner plug-in platform is provided at one end of the intermediate body and an outer plug-in platform matching the inner plug-in platform is provided at the other end, one of the hollow upper end cover and the hollow lower end cover is provided with an inner plug-in platform and the other is provided with an outer plug-in platform, and the hollow upper end cover, at least two intermediate bodies and the hollow lower end cover are connected to the inner side of the outer plug-in platform in sequence from top to bottom through the inner plug-in platform.

[0007] As a preferred solution of the utility model, a plurality of spoiler structures are arranged on the inner wall of the intermediate body, and the plurality of spoiler structures are distributed along the axial direction of the intermediate body; the spoiler structure is a spoiler ring arranged around the inner wall of the intermediate body, and the longitudinal section of the spoiler ring is trapezoidal.

[0008] As a preferred solution of the utility model, the longitudinal section of the spoiler ring is in the shape of a right-angled trapezoid, with its hypotenuse arranged downward and the right-angled side arranged upward, and a chamfer is made at the right angle of the upper side.

[0009] As a preferred solution of the present invention, the pore diameter and pore spacing of the microporous plate are less than or equal to 1 mm.

[0010] As a preferred solution of the present invention, the amount of active hydrogen-producing material added to the inner cavity of each intermediate is less than or equal to half of the volume of the inner cavity of the intermediate.

[0011] As a preferred solution of the utility model, it also includes an outer shell, the inner core component is arranged in the outer shell, the outer shell includes an upper cover, an outer shell tube and a lower cover, and the upper cover, the outer shell tube and the lower cover are plugged and welded in sequence from top to bottom.

[0012] As a preferred solution of the utility model, the middle of the upper cover is recessed downward to form a recessed portion, and a connecting port is provided in the middle of the recessed portion, and the connecting port is used to connect to a quick-connect connector.

[0013] As a preferred embodiment of the present invention, the outer shell further includes an upper net and a lower net, the middle of the upper net and the lower net each have a raised portion protruding from the periphery thereof, the longitudinal section of the raised portion presents an isosceles trapezoidal structure, the upper net is arranged on the lower side of the upper cover, the lower net is arranged on the upper side of the lower cover, and the raised portions on the upper net and the lower net are both arranged toward the inner core component.

[0014] As a preferred solution of the utility model, the aperture and hole spacing on the raised parts of the upper net and the lower net are both less than or equal to 1 mm, and the aperture of other parts of the upper net and the lower net is twice the aperture of the raised parts.

[0015] Compared with the prior art, the utility model has the following positive effects:

[0016] The active hydrogen preparation filter provided by the utility model comprises an inner core component, the inner core component comprises an inner core tube body and a plurality of microporous plates, the inner core tube body comprises a hollow upper end cap, a hollow lower end cap and at least two intermediates, the hollow upper end cap, the at least two intermediates and the hollow lower end cap are connected sequentially from top to bottom by plug-in connection, the microporous plates are respectively arranged at the plug-in place between the hollow upper end cap and the intermediate, the plug-in place between two adjacent intermediates and the plug-in place between the intermediate and the hollow lower end cap, and the microporous plates are arranged along the cross-section of the inner core tube body, and the inner cavities of the plurality of intermediates are filled with active hydrogen production materials. When the active hydrogen preparation filter in the utility model is in use, water flows sequentially through the hollow lower end cap, the inner cavity of the intermediate and the hollow upper end cap, the microporous plates divide the interior of the inner core tube body into a plurality of intermediate inner cavities for filling with active hydrogen production materials, and the water flows through the inner cavity of the intermediate to fully contact and react with the active hydrogen production material, thereby improving the hydrogen production efficiency. In addition, the inner core tube body is connected by plugging a plurality of intermediate bodies, so that the inner core components are easy to assemble and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the inner core component in the utility model;

[0019] Figure 2 It is a structural schematic diagram of the hollow upper end cover in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the hollow lower end cover in the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the intermediate in the utility model;

[0022] Figure 5 for Figure 4 A partial enlarged view of middle A;

[0023] Figure 6 This is a schematic diagram of the structure of the active hydrogen preparation filter element of the utility model;

[0024] Figure 7 It is a schematic diagram of the structure of the upper cover in the utility model;

[0025] Figure 8It is a structural schematic diagram of the lower cover in the utility model;

[0026] Fig. 9 It is a structural schematic diagram of the upper end network in the utility model.

[0027] In the figure: 1, inner core tube body; 11, hollow upper end cover; 111, plug-in inner platform; 12, hollow lower end cover; 121, spoiler ring; 122, bevel edge; 123, right-angle edge; 124, chamfer; 13, intermediate body; 131, plug-in outer platform; 2, microporous plate; 3, outer shell; 31, upper cover; 311, recessed part; 312, plug-in edge; 313, connection port; 32, lower cover; 33, upper end net; 331, raised part; 34, lower end net. DETAILED DESCRIPTION

[0028] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "front end", "back end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplification, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1:

[0032] This embodiment provides an active hydrogen preparation filter element, such as Figure 1-Figure 5 As shown, it includes an inner core assembly, which includes an inner core tube body 1 and a plurality of microporous plates 2. The inner core tube body 1 includes a hollow upper end cap 11, a hollow lower end cap 12 and at least two intermediate bodies 13, and the hollow upper end cap 11, at least two intermediate bodies 13 and the hollow lower end cap 12 are connected sequentially from top to bottom by plug-in connection. The inner core tube body 1 is easy to disassemble and assemble. The microporous plates 2 are made of metal.

[0033] The microporous plates 2 are respectively arranged at the joints between the hollow upper end cover 11 and the intermediate body 13, the joints between two adjacent intermediate bodies 13, and the joints between the intermediate body 13 and the hollow lower end cover 12, and the microporous plates 2 are arranged along the cross section of the inner core tube body 1. The inner cavities of multiple intermediate bodies 13 are filled with active hydrogen-producing materials. The microporous plate 2 separates the inner cavities of each intermediate body 13 to form multiple packing chambers, and supports the active hydrogen-producing materials in the inner cavities of the intermediate bodies 13. The water flows through the inner cavities of at least two intermediate bodies 13 in sequence, so that the water can fully contact the active hydrogen-producing materials and increase the contact reaction area. Among them, the active hydrogen-producing material is in granular form, which increases the specific surface area and improves the hydrogen production efficiency. The active hydrogen-producing material is an existing material, which can be functional filter particles such as zeolite, medical stone and volcanic rock added to active metals, or a combination of multiple materials. The active metal can be silver, copper, gold, aluminum, nickel, steel, etc. The water obtained by filtering water through this active hydrogen-producing material is multifunctional, safe and healthy hydrogen-rich water.

[0034] When the active hydrogen preparation filter element in this embodiment is in use, water flows through the hollow lower end cap 12, the inner cavity of the intermediate body 13 and the hollow upper end cap 11 in sequence, and the microporous plate 2 divides the interior of the inner core tube body 1 into multiple inner cavities of the intermediate body 13 for filling the active hydrogen production material. When the water flows through the inner cavity of the intermediate body 13, due to its unique structural design, it can fully contact and react with the active hydrogen production material to improve the hydrogen production efficiency. In addition, the inner core tube body 1 is connected by plugging multiple intermediate bodies 13, which makes the inner core assembly easy to assemble and improves production efficiency.

[0035] As a preferred implementation mode, Figure 2-Figure 4 As shown, an inner plug-in platform 111 is provided at one end of the intermediate body 13 and an outer plug-in platform 131 matching the inner plug-in platform 111 is provided at the other end. One of the hollow upper end cover 11 and the hollow lower end cover 12 is provided with the inner plug-in platform 111 and the other is provided with the outer plug-in platform 131. The hollow upper end cover 11, at least two intermediate bodies 13 and the hollow lower end cover 12 are connected from top to bottom by inserting the inner plug-in platform 111 into the inner side of the outer plug-in platform 131. Preferably, the intermediate body 13, the hollow upper end cover 11 and the hollow lower end cover 12 are all cylindrical structures with openings at both ends, and the inner diameter and outer diameter of the intermediate body 13, the hollow upper end cover 11 and the hollow lower end cover 12 are equal, and the intermediate body 13, the hollow upper end cover 11 and the hollow lower end cover 12 are coaxially connected, which has good connection stability. The inner plugging platform 111 and the outer plugging platform 131 are both annular structures, and the outer diameter of the inner plugging platform 111 is equal to the inner diameter of the outer plugging platform 131 , so that the inner plugging platform 111 and the outer plugging platform 131 can fit tightly.

[0036] The intermediate body 13, the hollow upper end cover 11 and the hollow lower end cover 12 are made of aluminum alloy.

[0037] Specifically, Figure 1 As shown, an inner plugging platform 111 is provided at the bottom end of the hollow upper end cover 11, an outer plugging platform 131 is provided at the top end of the intermediate body 13 and an inner plugging platform 111 is provided at the bottom end of the intermediate body 13, and an outer plugging platform 131 is provided at the top end of the hollow lower end cover 12, at which time, the periphery of the microporous plate 2 is clamped at the lower side of the inner plugging platform 111. Alternatively, an outer plugging platform 131 is provided at the bottom end of the hollow upper end cover 11, an inner plugging platform 111 is provided at the top end of the intermediate body 13 and an outer plugging platform 131 is provided at the bottom end of the intermediate body 13, and an inner plugging platform 111 is provided at the top end of the hollow lower end cover 12, at which time, the periphery of the microporous plate 2 is clamped at the upper side of the inner plugging platform 111.

[0038] The inner core tube body 1 in this embodiment is spliced ​​in five sections. Figure 1 As shown, the hollow upper end cover, the first intermediate body, the second intermediate body, the third intermediate body and the hollow lower end cover are five parts connected by plug-in connection, and microporous plates 2 are installed at the plug-in locations.

[0039] As a preferred embodiment, a plurality of flow-disturbing structures are provided on the inner wall of the intermediate body 13, and the plurality of flow-disturbing structures are distributed along the axial direction of the intermediate body 13. The flow-disturbing structure is a flow-disturbing ring 121 provided along the inner wall of the intermediate body 13, and the longitudinal section of the flow-disturbing ring 121 is trapezoidal. The provision of the flow-disturbing structure can fully disturb the water flow, so that the water is in full contact with the active hydrogen-producing material in the inner cavity of the intermediate body 13.

[0040] As a preferred embodiment, the longitudinal section of the spoiler ring 121 is in the shape of a right-angled trapezoid, and its hypotenuse 122 is set downward, the right-angled side 123 is set upward, and a chamfer 124 is made at the right angle of the upper side. The inner core component includes three intermediates 13. The inner core component is a metal component. The right-angled side 123 of the spoiler ring 121 in the shape of a right-angled trapezoid can fully disturb the water flowing downward, and the hypotenuse 122 plays a certain role in guiding the water flow, so that the water flow after flowing along the hypotenuse 122 collides with the right-angled side 123 of the next right-angled trapezoid, which plays a further role in disturbing the flow.

[0041] As a preferred implementation, the pore size and pore spacing of the microporous plate 2 are less than or equal to 1 mm, which supports the active hydrogen-producing material while reducing the resistance to the water flow, thereby ensuring the fluidity of the water flow.

[0042] As a preferred embodiment, the amount of active hydrogen-producing material added to the inner cavity of each intermediate 13 is less than or equal to half of the inner cavity volume of the intermediate 13, so that when water flows through the inner cavity of the intermediate 13, it can drive the active hydrogen-producing materials to collide with each other and stimulate physical polar properties.

[0043] The inner core assembly in this embodiment is assembled as follows Figure 1As shown, first place the microporous plate 2 on the top of the hollow lower end cover 12, then insert the plug-in inner platform 111 of the first intermediate body into the plug-in outer platform 131 of the hollow lower end cover 12, and fill it with active hydrogen production material; after placing the microporous plate 2 on the upper end of the first intermediate body, insert the plug-in inner platform 111 of the second intermediate body into the plug-in outer platform 131 at the top of the first intermediate body, and fill it with active hydrogen preparation material; after placing the microporous plate 2 on the upper end of the second intermediate body, insert the plug-in inner platform 111 of the third intermediate body into the plug-in outer platform 131 at the top of the second intermediate body, and fill it with active hydrogen preparation material; after placing the microporous plate 2 on the upper end of the third intermediate body, insert the plug-in inner platform 111 of the hollow upper end cover 11 into the plug-in outer platform 131 at the top of the third intermediate body, and the inner core component is assembled as a whole.

[0044] As a preferred implementation mode, Figure 6-Figure 9 As shown, the active hydrogen preparation filter element of this embodiment also includes an outer shell 3, the inner core assembly is arranged in the outer shell 3, and the outer shell 3 includes an upper cover 31, an outer shell cylinder and a lower cover 32. The upper cover 31, the outer shell cylinder and the lower cover 32 are sequentially plugged and welded from top to bottom. The upper cover 31, the outer shell cylinder and the lower cover 32 are welded as a whole, which has good sealing and connection stability. The upper cover 31, the outer shell cylinder and the lower cover 32 are made of 304 stainless steel.

[0045] The upper cover 31, the lower cover 32 and the outer shell are fixed and then welded by inserting, and batch welding can be achieved by a machine, making welding more convenient.

[0046] As a preferred implementation mode, Figure 7 and Figure 8 As shown, the middle of the upper cover 31 is recessed downward to form a recessed portion 311, and a connection port 313 is provided in the middle of the recessed portion 311, and the connection port 313 is used to connect with the quick-connect connector. An internal thread is provided in the connection port 313, and an external thread is provided on the quick-connect connector. The quick-connect connector is connected to the connection port 313 through the thread, so as to realize quick connection of water inlet and outlet, and convenient disassembly and assembly. After the quick-connect connector is installed, the height of the quick-connect connector is flush with the outer extension of the upper cover 31, so as to protect the quick-connect connector from leakage. The upper cover 31 is flanging, and an inner platform is made at the flanging to form a plug-in edge 312 with the outer shell tube, which is convenient for machine welding.

[0047] As a preferred embodiment, the outer shell 3 further includes an upper net 33 and a lower net 34. The middle of the upper net 33 and the lower net 34 are provided with a raised portion 331 protruding from the periphery thereof, and the longitudinal section of the raised portion 331 is an isosceles trapezoidal structure. The upper net 33 is arranged on the lower side of the upper cover 31, and the lower net 34 is arranged on the upper side of the lower cover 32, and the raised portions 331 on the upper net 33 and the lower net 34 are both arranged toward the inner core assembly.

[0048] The upper net 33 and the lower net 34 are provided with protrusions 331 so as to cooperate with the upper cover 31 and the lower cover for use. The upper net 33 and the lower net 34 can prevent the outer shell 3 from colliding with the inner core.

[0049] As a preferred embodiment, the aperture and the hole spacing on the raised portion 331 of the upper net 33 and the lower net 34 are both less than or equal to 1 mm, which has a certain filtering effect. The aperture of the other parts of the upper net 33 and the lower net 34 is twice the aperture of the raised portion 331, which does not affect the water flow speed.

[0050] When the active hydrogen preparation filter element provided in this embodiment is assembled as a whole, the lower net 34 is first installed in the outer shell tube at a suitable position and spot welded firmly, and then the lower cover 32 is fully welded to the outer shell tube; then the inner core component filled with materials is installed as a whole into the outer shell tube, and the inner core component is divided into upper and lower directions, and the upper and lower directions must be marked; after the inner core component is installed, the upper net 33 is installed in the outer shell tube at a suitable position and spot welded firmly, and then the external upper cover 31 is fully welded to the outer shell tube; finally, the quick-insert connector with external threads is screwed and fixed to the internal threads of the upper cover 31 and the lower cover 32.

[0051] The active hydrogen preparation filter element provided in this embodiment can be conveniently installed according to actual needs; the manufacturing process is convenient, the upper cover 31, the outer shell cylinder and the lower cover 32 are made by integrated stamping, and the inner core component adopts a quick-plug connection, which is easy to fill materials and assemble; the upper cover 31 and the lower cover of the outer shell are of plug-in structure, and can be conveniently welded automatically by machinery; the water inlet and outlet adopt quick-plug connections, which facilitates the convenient connection of the waterway.

[0052] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make several modifications and improvements without departing from the creative concept of the present invention, which should be included in the protection scope of the present invention.

Claims

1. An active hydrogen preparation filter element, characterized in that: The invention comprises an inner core component, wherein the inner core component comprises an inner core tube body (1) and a plurality of microporous plates (2); the inner core tube body (1) comprises a hollow upper end cover (11), a hollow lower end cover (12) and at least two intermediate bodies (13); the hollow upper end cover (11), the at least two intermediate bodies (13) and the hollow lower end cover (12) are connected in sequence from top to bottom by plug-in connection; the microporous plates (2) are respectively arranged at the plug-in connection between the hollow upper end cover (11) and the intermediate body (13), the plug-in connection between two adjacent intermediate bodies (13) and the plug-in connection between the intermediate body (13) and the hollow lower end cover (12); and the microporous plates (2) are arranged along the cross section of the inner core tube body (1); and the inner cavities of the plurality of intermediate bodies (13) are filled with active hydrogen-producing materials.

2. An active hydrogen preparation filter element according to claim 1, characterized in that: An inner plugging platform (111) is provided at one end of the intermediate body (13), and an outer plugging platform (131) matching the inner plugging platform (111) is provided at the other end; one of the hollow upper end cover (11) and the hollow lower end cover (12) is provided with an inner plugging platform (111) and the other is provided with an outer plugging platform (131); the hollow upper end cover (11), at least two intermediate bodies (13) and the hollow lower end cover (12) are connected to the inner side of the plugging platform (131) in sequence from top to bottom through the inner plugging platform (111).

3. The active hydrogen preparation filter element according to claim 1, characterized in that: A plurality of flow-disturbing structures are arranged on the inner wall of the intermediate body (13), and the plurality of flow-disturbing structures are distributed along the axial direction of the intermediate body (13); the flow-disturbing structure is a flow-disturbing ring (121) arranged along a circle of the inner wall of the intermediate body (13), and the longitudinal section of the flow-disturbing ring (121) is in a trapezoidal shape.

4. An active hydrogen preparation filter element according to claim 3, characterized in that: The longitudinal section of the spoiler ring (121) is in the shape of a right-angled trapezoid, with its hypotenuse (122) arranged downward, the right-angled side (123) arranged upward, and a chamfer (124) formed at the right angle of the upper side.

5. The active hydrogen preparation filter element according to claim 1, characterized in that: The pore diameter and pore spacing of the microporous plate (2) are less than or equal to 1 mm.

6. The active hydrogen preparation filter element according to claim 1, characterized in that: The amount of active hydrogen-producing material added to the inner cavity of each intermediate body (13) is less than or equal to half of the volume of the inner cavity of the intermediate body (13).

7. The active hydrogen preparation filter element according to claim 1, characterized in that: It also includes an outer shell (3), the inner core component is arranged in the outer shell (3), the outer shell (3) includes an upper cover (31), an outer shell tube and a lower cover (32), and the upper cover (31), the outer shell tube and the lower cover (32) are plugged and welded in sequence from top to bottom.

8. An active hydrogen preparation filter element according to claim 7, characterized in that: The middle of the upper cover (31) is recessed downward to form a recessed portion (311), and a connecting port (313) is provided in the middle of the recessed portion (311), and the connecting port (313) is used to connect to a quick-connect connector.

9. The active hydrogen preparation filter element according to claim 7, characterized in that: The outer shell (3) further comprises an upper net (33) and a lower net (34); the middle of each of the upper net (33) and the lower net (34) comprises a raised portion (331) protruding from the periphery thereof; the longitudinal section of the raised portion (331) presents an isosceles trapezoidal structure; the upper net (33) is arranged on the lower side of the upper cover (31); the lower net (34) is arranged on the upper side of the lower cover (32); and the raised portions (331) on the upper net (33) and the lower net (34) are both arranged toward the inner core component.

10. An active hydrogen preparation filter element according to claim 9, characterized in that: The apertures and the hole spacing on the raised portion (331) of the upper net (33) and the lower net (34) are both less than or equal to 1 mm, and the apertures of other parts of the upper net (33) and the lower net (34) are twice the aperture of the raised portion (331).

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