Filter element structure, hydrogenation filter and hydrogenation machine

Abstract

The utility model relates to a filter element structure, a hydrogenation filter and a hydrogenation machine. The filter element structure comprises a first filter screen, a second filter screen and a third filter screen which are coaxially arranged in sequence from inside to outside; a first connecting assembly is arranged between the first filter screen and the second filter screen, a second connecting assembly is arranged between the second filter screen and the third filter screen, and a fixed threaded block is arranged on the outer side face of the third filter screen. The first connecting assembly, the second filter screen, the second connecting assembly, the third filter screen and the fixed threaded block are all horizontally provided with coaxial through openings, and the through openings are sequentially communicated to form a through mounting channel; a threaded rod is rotationally arranged in the mounting channel, and a knob is mounted at the end, extending out of the fixed threaded block, of the threaded rod. The hydrogenation filter further comprises a filter shell, and the filter element structure is detachably installed in the filter shell. Compared with the prior art, the filter element structure disclosed by the utility model can be independently detached, so that the filter screen can be conveniently and independently replaced, and the maintenance cost is reduced while the filtering effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogenation filters, in particular to a filter element structure, a hydrogenation filter and a hydrogenation machine. Background Art

[0002] At a hydrogen refueling station, the refueler is a key device for filling hydrogen into fuel cell vehicles. The refueling filter is a crucial component, filtering impurities, protecting the refueling equipment, and ensuring hydrogen refueling quality, thereby reducing malfunctions and safety hazards caused by impurities. The filter is typically installed in the refueler's intake pipe to ensure clean hydrogen entering the refueler. The filter's performance directly impacts the station's operating efficiency and the mileage and service life of hydrogen vehicles.

[0003] Existing hydrogenation filters primarily consist of a housing and a filter element. The filter element is typically composed of multiple layers of filter screens, which are rigidly connected and difficult to disassemble. This means that if a single layer of filter screen becomes damaged and requires replacement, the entire filter element must be replaced. This significantly increases the difficulty and cost of replacement.

[0004] Therefore, a filter element structure and a hydrogenation filter that can independently replace the filter screen still need to be developed to reduce the difficulty of replacing the filter screen. Utility Model Content

[0005] The purpose of the utility model is to provide a filter element structure, a hydrogenation filter and a hydrogenation machine in order to overcome the defect in the prior art that it is difficult to replace the filter screen of the hydrogenation filter alone.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The utility model provides a filter core structure, which comprises a first filter screen, a second filter screen and a third filter screen which are coaxially arranged in sequence from the inside to the outside;

[0008] A first connecting assembly is provided between the first filter screen and the second filter screen, a second connecting assembly is provided between the second filter screen and the third filter screen, and a fixing thread block is provided on the outer side of the third filter screen;

[0009] The first connecting assembly, the second filter screen, the second connecting assembly, the third filter screen and the fixed threaded block are all horizontally provided with coaxial through-holes, and the through-holes are sequentially connected to form a through installation channel;

[0010] A threaded rod is rotatably provided in the installation channel, and a knob is installed on one end of the threaded rod extending out of the fixed threaded block.

[0011] Furthermore, the first connecting assembly includes a first mounting bracket provided on the outer side of the first filter screen and a first mounting block provided on the inner side of the second filter screen, and the first mounting bracket can abut against the first mounting block.

[0012] Furthermore, a fixing groove is provided on the first mounting frame, and a through opening is provided on the first mounting block and is coaxially arranged with the fixing groove.

[0013] Furthermore, the second connecting assembly includes a second mounting bracket provided on the outer side of the second filter screen and a second mounting block provided on the inner side of the third filter screen. The second mounting bracket can abut against the second mounting block and both are provided with coaxial through-openings.

[0014] The present invention also provides a hydrogenation filter including the above-mentioned filter element structure, and also includes a filter housing. The filter element structure can be detachably installed in the filter housing, which is convenient for staff to disassemble the filter housing and thus facilitate the cleaning or replacement of the filter element mechanism.

[0015] Furthermore, the filter housing includes a top housing and a bottom housing detachably connected to the top housing.

[0016] Furthermore, the top housing is connected to the input end connecting pipe, and the bottom housing is connected to the output end connecting pipe.

[0017] Furthermore, a threaded mounting groove is provided on the inner top wall of the top housing, and a threaded mounting ring that can be threadedly connected to the threaded mounting groove is provided on the top of the first filter screen of the filter element structure.

[0018] Furthermore, the top casing includes a top sealed shell, the bottom of the top sealed shell is provided with a positioning plate and a movable plate, and the movable plate is provided with an arc-shaped block.

[0019] Furthermore, the bottom housing includes a bottom sealed shell, and the top of the bottom sealed shell is provided with a positioning groove that can be plugged into the corresponding positioning plate and a connecting groove that can be plugged into the corresponding movable plate.

[0020] Furthermore, a slot capable of being snap-connected with the arc-shaped clamping block is provided on the side wall of the bottom sealed shell.

[0021] Furthermore, a movable groove is provided at the bottom of the top sealing shell, an inner side wall of the movable groove is connected to one end of a connecting spring, and the other end of the connecting spring is connected to the movable plate.

[0022] The utility model also provides a hydrogenation machine equipped with the hydrogenation filter.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The filter element structure of the present invention includes three layers of detachable filter screens. When the filter screens need to be replaced, the threaded rods only need to be adjusted and pulled out of the installation channel, and the three layers of filter screens can be replaced and maintained individually, thereby reducing the cost of replacement and maintenance.

[0025] (2) The first connecting assembly, the second filter screen, the second connecting assembly, the third filter screen and the fixed threaded block of the filter element structure of the present invention are all horizontally provided with coaxial through-holes, which are connected in sequence to form a through installation channel for the threaded rod to be screwed in for installation and fixation.

[0026] (3) The filter housing of the hydrogenation filter of the present invention is designed as a two-section structure that can be detached and separated up and down, breaking away from the traditional disassembly method, making it convenient for staff to disassemble the top housing and the bottom housing, and thus facilitating the cleaning or replacement of the filter element mechanism.

[0027] (4) The present invention can achieve initial positioning of the top housing and the bottom housing through the cooperation of the positioning plate and the positioning groove, can achieve re-positioning during installation through the cooperation of the movable plate and the connecting groove, and finally achieve stable installation of the top housing and the bottom housing through the snap-fit ​​cooperation of the arc-shaped clamping block and the clamping groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of the filter element structure of Example 1 of the present utility model.

[0029] Figure 2 This is a cross-sectional view of the filter element structure of Example 1 of the present utility model.

[0030] Figure 3 This is a cross-sectional view of the filter element structure of Example 2 of the present utility model.

[0031] Figure 4 This is a schematic structural diagram of the hydrogenation filter of Example 3 of the present utility model.

[0032] Figure 5 This is an exploded view of the hydrogenation filter of Example 3 of the present utility model.

[0033] Figure 6 This is a schematic structural diagram of the top casing of Example 4 of the present utility model.

[0034] Figure 7 This is a schematic structural diagram of the bottom casing of Example 4 of the present utility model.

[0035] Figure 8 This is a cross-sectional view of the top casing of Example 4 of the present utility model.

[0036] Figure 9 for Figure 8 Enlarged view of point A in the middle.

[0037] Figure 10 for Figure 8 Enlarged view of point B in the middle.

[0038] Description of the marks in the figure:

[0039] 1- filter element structure, 11- first filter screen, 111- threaded mounting ring, 12- second filter screen, 13- third filter screen, 14- first connecting assembly, 141- first mounting bracket, 1411- fixing groove, 142- first mounting block, 15- second connecting assembly, 151- second mounting bracket, 152- second mounting block, 16- fixing threaded block, 17- mounting channel, 18- threaded rod, 19- knob;

[0040] 2-filter housing, 21-top housing, 211-threaded mounting groove, 212-top sealing housing, 2121-moving groove, 213-positioning plate, 214-moving plate, 215-arc-shaped block, 216-connecting spring, 22-bottom housing, 221-bottom sealing housing, 222-positioning groove, 223-connecting groove, 224-slot;

[0041] 3-Input end connecting pipe;

[0042] 4- Output end connecting tube. DETAILED DESCRIPTION

[0043] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0044] In the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" 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, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0046] Example 1:

[0047] This embodiment provides a filter element structure, such as Figure 1-2 As shown, the filter element structure 1 includes a first filter screen 11, a second filter screen 12, and a third filter screen 13, which are coaxially arranged from the inside out. A first connecting assembly 14 is provided between the first filter screen 11 and the second filter screen 12, a second connecting assembly 15 is provided between the second filter screen 12 and the third filter screen 13, and a fixing thread block 16 is provided on the outer side of the third filter screen 13.

[0048] In this embodiment, first connecting assembly 14, second filter screen 12, second connecting assembly 15, third filter screen 13, and fixed threaded block 16 all have coaxial horizontal through-holes, which are sequentially connected to form a through-hole installation passage 17. A threaded rod 18 is rotatably mounted within installation passage 17, and a knob 19 is mounted on one end of threaded rod 18 extending from fixed threaded block 16.

[0049] When the filter screen in the filter element structure of this embodiment needs to be replaced, it is only necessary to adjust the knob 19 at the top of the threaded rod 18 to drive the threaded rod 18 to rotate and pull it out from the installation channel 17, so that the first filter screen 11, the second filter screen 12 and the third filter screen 13 can be replaced and maintained in a targeted manner.

[0050] Example 2:

[0051] This embodiment provides a filter element structure. The filter element structure 1 includes a first filter screen 11, a second filter screen 12, and a third filter screen 13 that are coaxially arranged in sequence from the inside to the outside.

[0052] like Figure 3 As shown, a first connecting assembly 14 is provided between the first filter 11 and the second filter 12, and a second connecting assembly 15 is provided between the second filter 12 and the third filter 13. The first connecting assembly 14 includes a first mounting bracket 141 provided on the outer side of the first filter 11 and a first mounting block 142 provided on the inner side of the second filter 12. The first mounting bracket 141 can abut against the first mounting block 142. The first mounting bracket 141 has a fixing groove 1411, and the first mounting block 142 has a through-hole coaxial with the fixing groove 1411. The second connecting assembly 15 includes a second mounting bracket 151 provided on the outer side of the second filter 12 and a second mounting block 152 provided on the inner side of the third filter 13. The second mounting bracket 151 can abut against the second mounting block 152, and both have coaxial through-holes. A fixing threaded block 16 is provided on the outer side of the third filter 13.

[0053] In this embodiment, both the first and second mounting brackets 141 and 151 are inverted L-shaped structures, comprising a vertical surface connected to the outer side of the filter screen and a horizontal surface connected to the top of the vertical surface, with the vertical surface and the horizontal surface forming a 90° angle. The corresponding mounting blocks are rectangular parallelepiped structures, with their top surfaces aligned with the horizontal surface of the mounting brackets. The 90° angle of the mounting blocks aligns with the 90° angle of the mounting brackets, achieving abutment and limiting effect between the two.

[0054] In this embodiment, the first mounting bracket 141, first mounting block 142, second filter screen 12, second mounting bracket 151, second mounting block 152, third filter screen 13, and fixed threaded block 16 all have coaxial horizontal through-holes. These through-holes are sequentially connected to form a through-hole mounting channel 17. A threaded rod 18 is rotatably mounted within mounting channel 17, mating with the internal threads of fixed threaded block 16 to achieve horizontal movement. A knob 19 is mounted on the end of threaded rod 18 that extends beyond fixed threaded block 16.

[0055] Example 3:

[0056] This embodiment provides a hydrogenation filter including the filter element structure of embodiment 1, and further including a filter housing 2, in which the filter element structure 1 is detachably installed.

[0057] like Figure 4-5 As shown, the filter housing 2 of this embodiment includes a top housing 21 and a bottom housing 22 detachably connected to the top housing 21. The top housing 21 is connected to the input connecting pipe 3, and the bottom housing 22 is connected to the output connecting pipe 4, allowing hydrogen to be introduced for filtration. A threaded mounting groove 211 is defined within the inner top wall of the top housing 21. A threaded mounting ring 111 is provided on the top of the first filter screen 11 of the filter element structure 1, which is threadably connected to the threaded mounting groove 211. The threaded engagement of the threaded mounting ring 111 and the threaded mounting groove 211 enables the detachable installation of the filter element structure 1 and the top housing 21.

[0058] Example 4:

[0059] This embodiment provides a hydrogenation filter, which is different from embodiment 3 in that: Figure 6-7As shown, the top housing 21 of this embodiment includes a top sealed housing 212. A positioning plate 213 and a movable plate 214 are provided at the bottom of the top sealed housing 212. Each movable plate 214 is provided with an arc-shaped clamping block 215. The bottom housing 22 includes a bottom sealed housing 221. The top of the bottom sealed housing 221 is provided with a positioning slot 222 that can be plugged into the corresponding positioning plate 213, and a connecting slot 223 that can be plugged into the corresponding movable plate 214. The sidewalls of the bottom sealed housing 221 are provided with a clamping slot 224 that can be snap-connected to the arc-shaped clamping block 215. The cooperation between the positioning plate 213 and the positioning slot 222 allows for initial positioning of the top housing 21 and the bottom housing 22. The cooperation between the movable plate 214 and the connecting slot 223 allows for re-positioning during installation. Finally, the snap-fit ​​cooperation between the arc-shaped clamping block 215 and the clamping slot 224 allows for stable installation of the top housing 21 and the bottom housing 22.

[0060] like Figure 8-10 As shown, in order to achieve the disassembly of the top housing 21 and the bottom housing 22, a movable groove 2121 is opened at the bottom of the top sealing shell 212. The inner side wall of the movable groove 2121 is connected to one end of the connecting spring 216, and the other end of the connecting spring 216 is connected to the movable plate 214. When it is necessary to open the filter housing 2 to replace and maintain the filter element structure 1 inside, the arc-shaped block 215 is pressed. The arc-shaped block 215 is retracted into the connecting groove 223 by the setting of the connecting spring 216, and the top housing 21 is pulled upward to achieve the disassembly of the top housing 21 and the bottom housing 22.

[0061] Example 5:

[0062] This embodiment provides a hydrogenation machine equipped with the hydrogenation filter described in Example 3. Hydrogen passes through the input connecting pipe 3 into the hydrogenation filter for filtration and purification, and is output from the output connecting pipe 4, ultimately completing the effective filtration and impurity removal of the input hydrogen.

[0063] Example 6:

[0064] This embodiment provides a hydrogenation filter, which specifically includes a filter housing 2 and a filter element structure 1 disposed in the filter housing 2. This embodiment also provides a hydrogenation machine, which is equipped with the above-mentioned hydrogenation filter.

[0065] The filter housing 2 of the hydrogenation filter is composed of a top housing 21 and a bottom housing 22. The top housing 21 includes a top sealing shell 212, a positioning plate 213, a threaded mounting groove 211, a movable groove 2121, a connecting spring 216, a movable plate 214 and an arc-shaped clamping block 215. The top of the top housing 21 is fixedly connected to the bottom end of the input connecting pipe 3, and the bottom end of the top housing 21 is movably connected to the top of the bottom housing 22. The bottom housing 22 includes a bottom sealing shell 221, a positioning groove 222, a connecting groove 223 and a clamping groove 224. The bottom end of the bottom housing 22 is fixedly connected to the top end of the output connecting pipe 4, and the inner wall of the top housing 21 is threadedly connected to the outer wall of the filter element structure 1.

[0066] The bottom ends of the top sealing housing 212 of the present embodiment are both fixedly connected to the top ends of the positioning plate 213, and the inner top wall of the top sealing housing 212 is provided with a threaded mounting groove 211. The bottom of the top sealing housing 212 is provided with a movable groove 2121 on both sides perpendicular to the positioning plate 213. The threaded mounting groove 211 ensures the installation of the filter element structure 1. The inner side wall of the movable groove 2121 is fixedly connected to one end of the connecting spring 216, and the other end of the connecting spring 216 is fixedly connected to one side of the movable plate 214. The side of the bottom end of the movable plate 214 away from the connecting spring 216 is fixedly connected to one side of the arc-shaped block 215. The movable plate 214 and the arc-shaped block 215 facilitate the installation of the top sealing housing 212 and the bottom sealing housing 221. The bottom end of the top sealed housing 212 is movably connected to the top end of the bottom sealed housing 221, and positioning grooves 222 are provided on both sides of the top of the bottom sealed housing 221. Connecting grooves 223 are provided on both sides of the top of the bottom sealed housing 221 perpendicular to the positioning grooves 222, and a clamping groove 224 is provided on one side of the connecting groove 223. The inner wall of the positioning groove 222 is movably connected to the outer wall of the positioning plate 213, and the inner wall of the connecting groove 223 is movably connected to the outer wall of the movable plate 214, and the outer wall of the movable plate 214 is movably connected to the inner wall of the clamping groove 224. The positioning grooves 222 facilitate the positioning of the top sealed housing 212 and the bottom sealed housing 221, and the connecting grooves 223 and the clamping grooves 224 ensure the stability of the installation of the top sealed housing 212 and the bottom sealed housing 221.

[0067] The filter element structure 1 includes a first filter screen 11, a threaded mounting ring 111, a second filter screen 12, a third filter screen 13, mounting brackets (a first mounting bracket 141 and a second mounting bracket 151), mounting blocks (a first mounting block 142 and a second mounting block 152), a fixed threaded block 16, a threaded rod 18, and a knob 19. The top of the first filter screen 11 is fixedly connected to the bottom of the threaded mounting ring 111, and the outer wall of the threaded mounting ring 111 is threadedly connected to the inner wall of the threaded mounting groove 211. One side of the first filter screen 11 and the side of the second filter screen 12 facing away from the first filter screen 11 are fixedly connected to the first mounting bracket 141 and the second mounting bracket 151, respectively. The side of the second filter screen 12 facing the first filter screen 11 and the side of the third filter screen 13 facing the second filter screen 12 are fixedly connected to the first mounting block 142 and the second mounting bracket 152, respectively. The separate arrangement of the first filter screen 11, the second filter screen 12, and the third filter screen 13 facilitates individual replacement of one group, reducing maintenance costs.

[0068] In this embodiment, both the first and second mounting blocks 142 and 152 have through-holes, while the second and third filter screens 12 and 13 each have through-grooves. Furthermore, the second mounting bracket 151 located on the side of the second filter screen 12 has a through-groove, while the first mounting bracket 141 located on the side of the first filter screen 11 has a fixed groove. These through-holes, through-grooves, through-grooves, and fixed grooves form a mounting channel 17 for the rotation of threaded rod 18. The side of the third filter screen 13 facing away from the second mounting block 152 is fixedly connected to one side of a fixed threaded block 16. The inner wall of the fixed threaded block 16 is threadedly connected to the outer wall of the threaded rod 18, and one end of the threaded rod 18 is fixedly connected to one end of a knob 19. Rotating knob 19 rotates threaded rod 18, which then rotates through fixed threaded block 16, moving it away from mounting channel 17 and out of the way, allowing the first, second, and third filter screens 11, 12, and 13 to be individually removed.

[0069] The working principle of the hydrogenation filter in this embodiment is as follows:

[0070] When cleaning or replacing the first filter 11, the second filter 12 and the third filter 13, the gas supply is turned off, the arc-shaped block 215 is pressed, and the movable plate 214 is driven to squeeze the movable groove 2121, so that the arc-shaped block 215 is away from the inside of the groove 224, so that the arc-shaped block 215 is not blocked by the groove 224, and the top sealed shell 212 and the bottom sealed shell 221 are disassembled.

[0071] Rotating the third filter screen 13 causes the threaded mounting ring 111 to rotate along the inner wall of the threaded mounting groove 211, thereby removing the filter element structure 1 from the interior of the top sealing housing 212. If the first, second, and third filters 11, 12, and 13 become damaged and need to be replaced individually, rotating the knob 19 causes the threaded rod 18 to rotate. The threaded rod 18 rotates through the fixed threaded block 16, moving it away from the mounting channel 17, allowing the first, second, and third filters 11, 12, and 13 to be removed individually. A new first, second, or third filter screen 11, 12, or 13 is replaced with the damaged first, second, or third filter screen 11, 12, or 13, allowing the mounting block to enter the corresponding mounting bracket. Rotating the knob 19 again causes the threaded rod 18 to re-enter the second and third filters 12, 13, the mounting bracket, and the mounting block, thereby securely installing the first, second, and third filters 11, 12, and 13.

[0072] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. A filter element structure, characterized in that: The filter element structure (1) comprises a first filter screen (11), a second filter screen (12), and a third filter screen (13) which are coaxially arranged in sequence from the inside out; A first connecting assembly (14) is provided between the first filter screen (11) and the second filter screen (12), a second connecting assembly (15) is provided between the second filter screen (12) and the third filter screen (13), and a fixing threaded block (16) is provided on the outer side surface of the third filter screen (13); The first connecting component (14), the second filter screen (12), the second connecting component (15), the third filter screen (13) and the fixed threaded block (16) are all horizontally provided with coaxial through-holes, and the through-holes are sequentially connected to form a through-mounting passage (17); A threaded rod (18) is rotatably provided in the installation channel (17), and a knob (19) is installed at one end of the threaded rod (18) extending out of the fixed threaded block (16).

2. A filter element structure according to claim 1, characterized in that: The first connecting assembly (14) comprises a first mounting frame (141) provided on the outer side of the first filter screen (11) and a first mounting block (142) provided on the inner side of the second filter screen (12), wherein the first mounting frame (141) can abut against the first mounting block (142).

3. A filter element structure according to claim 2, characterized in that: The first mounting frame (141) is provided with a fixing groove (1411), and the first mounting block (142) is provided with a through opening coaxially arranged with the fixing groove (1411).

4. A filter element structure according to claim 1, characterized in that: The second connecting assembly (15) comprises a second mounting frame (151) provided on the outer side of the second filter screen (12) and a second mounting block (152) provided on the inner side of the third filter screen (13); the second mounting frame (151) can abut against the second mounting block (152) and both are provided with coaxial through-openings.

5. A hydrogenation filter, characterized in that The hydrogenation filter comprises the filter element structure according to any one of claims 1 to 4, wherein the filter element structure (1) is detachably mounted in the filter element housing (2).

6. A hydrogenation filter according to claim 5, characterized in that: The filter housing (2) comprises a top housing (21) and a bottom housing (22) detachably connected to the top housing (21); The top housing (21) is in communication with the input end connecting pipe (3), and the bottom housing (22) is in communication with the output end connecting pipe (4).

7. A hydrogenation filter according to claim 6, characterized in that: A threaded mounting groove (211) is provided on the inner top wall of the top housing (21), and a threaded mounting ring (111) capable of being threadedly connected to the threaded mounting groove (211) is provided on the top of the first filter screen (11) of the filter element structure (1).

8. A hydrogenation filter according to claim 6, characterized in that: The top housing (21) includes a top sealed shell (212), a positioning plate (213) and a movable plate (214) are provided at the bottom of the top sealed shell (212), and an arc-shaped clamping block (215) is provided on each movable plate (214); The bottom housing (22) comprises a bottom sealed shell (221), the top of which is provided with a positioning groove (222) capable of being plugged into a corresponding positioning plate (213) and a connecting groove (223) capable of being plugged into a corresponding moving plate (214); and a clamping groove (224) capable of being clamped into an arc-shaped clamping block (215) is provided on a side wall of the bottom sealed shell (221).

9. A hydrogenation filter according to claim 8, characterized in that: A movable groove (2121) is provided at the bottom of the top sealing shell (212), an inner side wall of the movable groove (2121) is connected to one end of a connecting spring (216), and the other end of the connecting spring (216) is connected to the movable plate (214).

10. A hydrogenation machine, characterized in that: The hydrogenation machine is equipped with the hydrogenation filter according to claim 5.

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