Purifying device for hydrogen production through water electrolysis

Abstract

The utility model relates to a purification device for hydrogen production through water electrolysis, and belongs to the technical field of hydrogen production through water electrolysis. Comprising a purification tank body and a purification unit, the upper end of the purification tank body is fixedly connected with a tank cover, the lower end of the purification tank body is fixedly connected with a supporting foot stool, and the bottom end in the purification tank body is fixedly connected with a bottom plate. According to the utility model, the maintenance convenience is improved by independently fixing the single group of purification units. When a certain purification unit needs to be disassembled, only the corresponding upper fixing cover needs to be disassembled, and due to the design, other purification units which do not need to be overhauled are not affected. By arranging the two supporting frames, the auxiliary supporting and positioning effects on the purification unit can be achieved, and the purification unit is not prone to toppling over or disengaging from the working position. Meanwhile, when the purification unit is mounted, the purification unit is only required to be inserted along the inner sides of the two groups of fixing rings, so that the lower end of the purification unit can be easily inserted into the placing groove, and the time and difficulty of positioning and aligning are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen production by electrolyzing water, in particular to a purification device for hydrogen production by electrolyzing water. Background Art

[0002] Trace oxygen and a large amount of water vapor are contained in the hydrogen produced by electrolyzing water. In order to obtain high-purity hydrogen, it is necessary to use a purification unit to purify the hydrogen produced by electrolyzing water.

[0003] After retrieval, the utility model patent with the publication number CN219922591U discloses a purification device for hydrogen production by electrolyzing water. By setting the adjustment component and the partition board to cooperate to fix the purification unit, when a certain purification unit fails or is blocked and needs to be taken out for maintenance, the fixation of the purification unit can be released by controlling the adjustment component, and the purification unit can be taken out from the maintenance door for maintenance or replacement, which is more convenient and fast.

[0004] However, in actual operation, when the staff replaces the purification unit that needs to be maintained, the piston head needs to be lifted. In this case, the tops of all the purification units in the tank will temporarily lose fixation, resulting in a decrease in their fixation. In this case, the purification units are extremely likely to fall or deviate from their working positions. Especially when the staff takes out the purification unit that needs to be maintained, they may accidentally touch other purification units that do not need to be maintained, thus causing these purification units that do not need to be maintained to fall or deviate from their working positions, thereby prolonging the maintenance time and increasing the maintenance difficulty. Secondly, when installing a new purification unit, the fixing cover needs to be aligned with the installation groove. Since the installation groove is located at the lower end inside the tank, this makes the alignment and positioning process relatively complex and time-consuming. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a purification device for hydrogen production by electrolyzing water. The technical solution of the utility model is as follows:

[0006] A purification device for hydrogen production by electrolyzing water, comprising a purification tank body and a purification unit. The upper end of the purification tank body is fixedly connected with a tank cover, and the lower end of the purification tank body is fixedly connected with a support leg frame. The bottom end inside the purification tank body is fixedly connected with a bottom plate. An air inlet pipe penetrates through and is connected to the lower end of the tank wall of the purification tank body and is located below the bottom plate. An air outlet pipe penetrates through and is connected to the lower end of the tank wall of the purification tank body and is located above the bottom plate. A plurality of ventilation holes are formed through the surface of the bottom plate. A circular ring placement seat is fixedly connected to the upper surface of the bottom plate and around the ventilation holes. A placement groove is formed inside the circular ring placement seat. The lower end of the purification unit is movably inserted into the placement groove. Two groups of support frames for supporting the purification unit are fixedly connected inside the purification tank body. The support frame includes an outer ring and a fixed ring. The outer ring is fixedly connected to the inner wall of the purification tank body. The fixed ring is movably sleeved on the outside of the purification unit. Both sides of the fixed ring are fixedly connected with connecting plates. One group of the connecting plates is fixed to the outer ring, and the end of the other group of the connecting plates far away from the fixed ring is fixedly connected with a central plate. On the upper surfaces of the two groups of the connecting plates in the support frame located above, fixing seats are symmetrically installed. Threaded holes are formed on the upper surfaces of the fixing seats. An elastic component is connected to the upper surface of the fixed ring in the support frame located above. The upper end of the purification unit is movably connected with an upper fixing cover. Inverted L-shaped rods are symmetrically and fixedly connected to both sides of the upper fixing cover. The lower ends of the inverted L-shaped rods are fixedly connected with fixing plates. Bolts are movably connected to the fixing plates. The bottom ends of the bolts are threadedly connected to the threaded holes inside.

[0007] Optionally, a guiding slope is provided at the upper opening of the placement groove.

[0008] Optionally, a lower sealing ring is clamped between the lower end of the purification unit and the placement groove, and an upper sealing ring is clamped between the upper end of the purification unit and the upper fixing cover.

[0009] Optionally, side plates are symmetrically and fixedly connected to both sides of the upper surface of the fixing seat. Guide grooves are formed inside the inner sides of the side plates. Guide blocks are fixedly connected to both sides of the fixing plate. The guide blocks are slidably connected to the inside of the corresponding guide grooves on one side.

[0010] Optionally, the elastic component includes a hollow support seat and an annular cylinder. An installation groove is formed in a circle on the upper surface of the support seat. The annular cylinder is slidably connected to the inside of the installation groove. The upper end of the annular cylinder is fixedly connected with a top plate. The lower end of the annular cylinder is fixedly connected with a spring. The lower end of the spring is fixedly connected to the inner bottom surface of the installation groove. A ring seat is fixedly connected to the outside of the purification unit and above the top plate. The lower surface of the ring seat is in contact with the upper surface of the top plate.

[0011] All the above optional technical solutions can be combined arbitrarily, and the present utility model does not elaborate on the structures after combination one by one.

[0012] With the above solution, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the convenience of maintenance is improved by fixing each single purification unit separately. Specifically, the upper end of each purification unit is fixed by an upper fixing cover. In this way, when it is necessary to disassemble a certain purification unit, only the corresponding upper fixing cover needs to be removed. This design ensures that other purification units that do not need to be overhauled are not affected, avoiding accidental contact with other purification units that do not need to be overhauled during the overhaul of a certain purification unit, thereby preventing them from tipping over or falling out of the working position.

[0014] 2. By providing two sets of support frames, the purification units can be supported and positioned. During the disassembly process, even if the upper fixing cover used to fix the upper end of the purification unit is removed, the purification unit can still remain relatively stable. This is because the position of the purification unit is restricted by the fixing ring, making it difficult for the purification unit to tip over or fall out of the working position. Secondly, when installing the purification unit, only need to insert the purification unit along the inner side of the two fixing rings, and the lower end of the purification unit can be easily inserted into the placement groove, greatly reducing the time and difficulty of positioning alignment, and improving the installation efficiency and accuracy.

[0015] The above description is only an overview of the technical solution of the present utility model. In order to be able to more clearly understand the technical means of the present utility model and implement it in accordance with the content of the specification, the following describes in detail with reference to the preferred embodiments of the present utility model and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall external structure of the purification device for hydrogen production by electrolysis of water provided by the present utility model;

[0017] Figure 2 is a top view sectional view of the purification device for hydrogen production by electrolysis of water provided by the present utility model;

[0018] Figure 3 is a front view sectional view of the purification device for hydrogen production by electrolysis of water provided by the present utility model;

[0019] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0020] Figure 5 is Figure 3 an enlarged schematic diagram of the structure at B in

[0021] Figure 6 is a schematic diagram of the structure of the bottom plate, purification unit, support frame, fixed seat, elastic component and upper fixing cover in the present utility model in cooperation;

[0022] Figure 7 is Figure 6 exploded view of the decomposition structure;

[0023] Figure 8 is the exploded view of the support frame, fixed seat, elastic component and upper fixed cover in the present utility model.

[0024] Reference numerals in the figure: 1, purification tank body; 11, intake pipe; 12, outlet pipe; 2, tank cover; 3, support leg frame; 4, bottom plate; 41, ventilation hole; 42, ring placement seat; 421, placement groove; 422, guiding slope; 43, lower sealing ring; 5, purification unit; 51, ring seat; 6, support frame; 61, outer ring; 62, fixed ring; 63, connecting plate; 64, central plate; 7, fixed seat; 71, threaded hole; 72, side plate; 721, guiding groove; 8, elastic component; 81, support seat; 811, installation groove; 82, annular cylinder; 821, top plate; 83, spring; 9, upper fixed cover; 91, inverted L-shaped rod; 92, fixing plate; 921, guiding block; 93, bolt; 94, upper sealing ring. Specific embodiments

[0025] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0026] Please refer to Figures 1-8, the utility model provides a purification device for hydrogen production by electrolyzed water, which comprises a purification tank body 1 and a purification unit 5. The upper end of the purification tank body 1 is fixedly connected with a tank cover 2, and the lower end of the purification tank body 1 is fixedly connected with a support leg frame 3. The bottom end inside the purification tank body 1 is fixedly connected with a bottom plate 4. An air inlet pipe 11 is connected through the lower end of the tank wall of the purification tank body 1 and below the bottom plate 4, and an air outlet pipe 12 is connected through the lower end of the tank wall of the purification tank body 1 and above the bottom plate 4. A plurality of ventilation holes 41 are formed through the surface of the bottom plate 4. A circular ring placement seat 42 is fixedly connected to the upper surface of the bottom plate 4 and around the ventilation holes 41. A placement groove 421 is formed inside the circular ring placement seat 42. The lower end of the purification unit 5 is movably inserted into the placement groove 421. Two groups of support frames 6 for supporting the purification unit 5 are fixedly connected inside the purification tank body 1. The support frame 6 comprises an outer ring 61 and a fixing ring 62. The outer ring 61 is fixedly connected to the inner wall of the purification tank body 1, and the fixing ring 62 is movably sleeved outside the purification unit 5. Connecting plates 63 are fixedly connected to both sides of the fixing ring 62. One group of connecting plates 63 is fixed to the outer ring 61, and the end of the other group of connecting plates 63 away from the fixing ring 62 is fixedly connected with a central plate 64. Fixing seats 7 are symmetrically installed on the upper surfaces of the two groups of connecting plates 63 in the support frame 6 located above. Threaded holes 71 are formed on the upper surfaces of the fixing seats 7. An elastic component 8 is connected to the upper surface of the fixing ring 62 in the support frame 6 located above. The upper end of the purification unit 5 is movably connected with an upper fixing cover 9. Inverted L-shaped rods 91 are symmetrically and fixedly connected to both sides of the upper fixing cover 9. The lower ends of the inverted L-shaped rods 91 are fixedly connected with fixing plates 92. Bolts 93 are movably connected to the fixing plates 92, and the bottom ends of the bolts 93 are threadedly connected to the threaded holes 71 inside.

[0027] In the present utility model, the convenience of maintenance is improved by separately fixing a single purification unit 5. Specifically, the upper end of each purification unit 5 is fixed by an upper fixing cover 9. In this way, when it is necessary to disassemble a certain purification unit 5, only the corresponding upper fixing cover 9 needs to be removed. This design ensures that other purification units 5 that do not require maintenance are not affected. By providing two sets of support frames 6, the purification unit 5 can be assisted in supporting and positioning. During the disassembly process, even if the upper fixing cover 9 used to fix the upper end of the purification unit 5 is removed, the purification unit 5 can still remain relatively stable. This is because the position of the purification unit 5 is restricted by the fixing ring 62, making it difficult for the purification unit 5 to tip over or deviate from the working position. Secondly, when installing the purification unit 5, only by inserting the purification unit 5 along the inner sides of the two fixing rings 62, the lower end of the purification unit 5 can be easily inserted into the placement groove 421, greatly reducing the time and difficulty of positioning and alignment. After the purification unit 5 is inserted, the upper fixing cover 9 is buckled on the upper end of the purification unit 5, and the fixing plate 92 is fixed to the fixing seat 7 using bolts 93 until the bolts 93 are tightened. When removing the purification unit 5 that needs to be overhauled, only the tank cover 2 needs to be opened, and then the bolts 93 are unscrewed to separate the fixing plate 92 from the fixing seat 7, and the upper fixing cover 9 is removed. At this time, the elastic component 8 will lift the purification unit 5 to a certain height, facilitating the staff to easily take out the purification unit 5.

[0028] Specific working process: Hydrogen enters the space at the inner bottom end of the purification tank 1 and below the bottom plate 4 through the inlet pipe 11, and enters the purification unit 5 along the ventilation holes 41. The purification unit 5 processes the hydrogen (the purification unit 5 will perform operations such as heating, catalyzing, and adsorbing water vapor on the hydrogen. Here, the conventional hydrogen treatment method in the prior art is adopted and will not be elaborated in this article). The processed hydrogen will flow out of the purification unit 5 and diffuse into the space at the upper end of the purification tank 1 and above the bottom plate 4, and finally be discharged along the outlet pipe 12.

[0029] Furthermore, a guiding slope 422 is provided at the upper opening of the placement groove 421.

[0030] Specifically, the guiding slope 422 provides a gradual inclined plane for the lower end of the purification unit 5, enabling the purification unit 5 to enter the placement groove 421 more smoothly during the insertion process. The presence of the guiding slope 422 reduces the possible resistance and jamming during the insertion process, making the insertion process smoother. Secondly, the guiding slope 422 can accelerate the insertion speed of the purification unit 5 and reduce the time for positioning and alignment.

[0031] Furthermore, a lower sealing ring 43 is clamped between the lower end of the purification unit 5 and the placement groove 421, and an upper sealing ring 94 is clamped between the upper end of the purification unit 5 and the upper fixing cover 9.

[0032] Specifically, through the settings of the lower sealing ring 43 and the upper sealing ring 94, the sealing performance between the lower end of the purification unit 5 and the placement groove 421, and between the upper end of the purification unit 5 and the upper fixing cover 9 is enhanced, ensuring that hydrogen will not leak from the connection.

[0033] Furthermore, on both sides of the upper surface of the fixed seat 7, side plates 72 are symmetrically and fixedly connected. Guide grooves 721 are formed inside the side plates 72. On both sides of the fixing plate 92, guide blocks 921 are fixedly connected. The guide blocks 921 are slidably connected inside the corresponding guide grooves 721 on one side.

[0034] Specifically, when installing the upper fixing cover 9, the fixing plate 92 and the fixed seat 7 need to be fixed using bolts 93. During the fixing process, the guide blocks 921 can be inserted into the corresponding guide grooves 721 on one side, and then the positioning operation between the fixing plate 92 and the fixed seat 7 can be completed, reducing the positioning time. Secondly, during the process of tightening the bolts 93, the fixing plate 92 gradually moves downward as the bolts 93 are tightened. During this process, the fixing plate 92 drives the guide blocks 921 to slide inside the guide grooves 721. The guide grooves 721 play a role in assisting guidance and positioning for the guide blocks 921, which can prevent the fixing plate 92 from deviating.

[0035] Furthermore, the elastic component 8 includes a hollow support seat 81 and an annular cylinder 82. An installation groove 811 is formed in the upper surface of the support seat 81. The annular cylinder 82 is slidably connected inside the installation groove 811. The upper end of the annular cylinder 82 is fixedly connected with a top plate 821. The lower end of the annular cylinder 82 is fixedly connected with a spring 83. The lower end of the spring 83 is fixedly connected to the inner bottom surface of the installation groove 811. A ring seat 51 is fixedly connected outside the purification unit 5 and above the top plate 821. The lower surface of the ring seat 51 is in contact with the upper surface of the top plate 821.

[0036] Specifically, the elastic component 8 can apply an upward elastic force to the ring seat 51. When installing the upper fixing cover 9, as the bolts 93 are tightened, the upper fixing cover 9 drives the purification unit 5 to gradually move downward. During this process, the ring seat 51 presses the top plate 821 downward, and the top plate 821 squeezes the spring 83 through the annular cylinder 82. When it is necessary to disassemble the purification unit 5, after removing the upper fixing cover 9, the purification unit 5 loses the fixation from the upper fixing cover 9. At this time, the spring 83 restores its elastic deformation, which can indirectly jack up the purification unit 5, facilitating the staff to take out the purification unit 5.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A purification device for hydrogen production by electrolyzing water, characterized in that: It includes a purification tank body (1) and a purification unit (5). The upper end of the purification tank body (1) is fixedly connected with a tank cover (2), the lower end of the purification tank body (1) is fixedly connected with a support leg frame (3), the bottom end inside the purification tank body (1) is fixedly connected with a bottom plate (4), the lower end of the tank wall of the purification tank body (1) and below the bottom plate (4) is penetrated and connected with an air inlet pipe (11), the lower end of the tank wall of the purification tank body (1) and above the bottom plate (4) is penetrated and connected with an air outlet pipe (12), a plurality of ventilation holes (41) are penetrated and opened on the surface of the bottom plate (4), a circular ring placement seat (42) is fixedly connected on the upper surface of the bottom plate (4) and around the ventilation holes (41), a placement groove (421) is opened inside the circular ring placement seat (42), the lower end of the purification unit (5) is movably inserted into the inside of the placement groove (421), two groups of support frames (6) for supporting the purification unit (5) are fixedly connected inside the purification tank body (1), the support frame (6) includes an outer ring (61) and a fixed ring (62), the outer ring (61) is fixedly connected to the inner wall of the purification tank body (1), the fixed ring (62) is movably sleeved outside the purification unit (5), both sides of the fixed ring (62) are fixedly connected with connecting plates (63), one group of the connecting plates (63) is fixed to the outer ring (61), and the end of the other group of the connecting plates (63) away from the fixed ring (62) is fixedly connected with a central plate (64). On the upper surfaces of the two groups of the connecting plates (63) in the support frame (6) located above, fixing seats (7) are symmetrically installed, threaded holes (71) are opened on the upper surfaces of the fixing seats (7), an elastic component (8) is connected to the upper surface of the fixed ring (62) in the support frame (6) located above, the upper end of the purification unit (5) is movably connected with an upper fixing cover (9), inverted L-shaped rods (91) are symmetrically and fixedly connected to both sides of the upper fixing cover (9), a fixing plate (92) is fixedly connected to the lower end of the inverted L-shaped rod (91), a bolt (93) is movably connected to the fixing plate (92), and the bottom end of the bolt (93) is threadedly connected inside the threaded hole (71).

2. The purification device for hydrogen production by electrolyzing water according to claim 1, characterized in that, A guiding slope (422) is provided at the upper end opening of the placement groove (421).

3. The purification device for hydrogen production by electrolyzing water according to claim 1 or 2, characterized in that, A lower sealing ring (43) is clamped between the lower end of the purification unit (5) and the placement groove (421), and an upper sealing ring (94) is clamped between the upper end of the purification unit (5) and the upper fixing cover (9).

4. A purification device for hydrogen production by electrolyzing water according to claim 1, characterized in that, Side plates (72) are symmetrically and fixedly connected to both sides of the upper surface of the fixing seat (7), guide grooves (721) are opened inside the side plates (72), guide blocks (921) are fixedly connected to both sides of the fixing plate (92), and the guide blocks (921) are slidably connected inside the guide grooves (721) on the corresponding side.

5. A purification device for hydrogen production by electrolyzing water according to claim 1, characterized in that, The elastic component (8) includes a hollow support base (81) and an annular cylinder (82). An installation groove (811) is provided in a circle on the upper surface of the support base (81). The annular cylinder (82) is slidably connected to the inside of the installation groove (811). The upper end of the annular cylinder (82) is fixedly connected to a top plate (821). The lower end of the annular cylinder (82) is fixedly connected to a spring (83). The lower end of the spring (83) is fixedly connected to the inner bottom surface of the installation groove (811). A ring base (51) is fixedly connected to the outside of the purification unit (5) and above the top plate (821). The lower surface of the ring base (51) is in contact with the upper surface of the top plate (821).

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