A purification device for hydrogen production by water electrolysis

Abstract

The utility model discloses a kind of purification devices for water electrolysis hydrogen production, belong to water electrolysis hydrogen production technical field, including box, box bottom surface is connected with moving assembly, the outer surface of one side of box is fixed with air pump by bolt, by the moving assembly consisting of thread barrel, threaded column, connecting block and universal wheel, not only can utilize universal wheel flexible moving device, reduce handling cost and operation complexity;Rotary threaded column can also be used to adjust universal wheel height, easily adapt to uneven ground, moisture filter plate, oxygen filter plate, carbon dioxide filter plate are detachably connected by clamping groove and connecting assembly, the cooperation of plug rod, pull block and return spring in connecting assembly, the installation and disassembly of filter plate do not need to rely on complex tool, just by pulling and loosening pull block can be completed operation, greatly shorten maintenance time, reduce the working strength of maintenance personnel, ensure that device can quickly recover operation, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water electrolysis hydrogen production technology, and in particular to a purification device for water electrolysis hydrogen production. Background Technology

[0002] Against the backdrop of the global energy transition, hydrogen energy, as a clean and efficient secondary energy source, has received widespread attention. Water electrolysis, as a mature hydrogen production technology, boasts advantages such as high product purity and environmental friendliness, and is considered one of the main methods for future green hydrogen production. However, the hydrogen produced during water electrolysis is not absolutely pure; it typically contains impurities such as water, oxygen, and carbon dioxide. The presence of these impurities not only affects the combustion efficiency and application safety of hydrogen but may also cause corrosion and damage to subsequent storage, transportation equipment, and end-use applications such as fuel cells. Therefore, purifying the hydrogen produced by water electrolysis is crucial.

[0003] Existing water electrolysis hydrogen production and purification equipment has several shortcomings in practical applications. Firstly, traditional purification units are often large and fixed, making them difficult to move flexibly according to production needs. Moving and transporting them is extremely inconvenient when the hydrogen production equipment location changes or when the purification unit needs to be used in different scenarios, increasing operational complexity and cost. Even if some units are equipped with moving parts, these parts are mostly fixed structures, making it impossible to adjust them to uneven ground conditions after the unit has been moved to a suitable location. Secondly, core components inside the purification unit, such as filter plates used to remove impurities, require regular replacement or maintenance after long-term use. However, the installation and disassembly structures of filter plates in existing units are quite complex, typically requiring multiple tools and considerable time. This not only affects the continuous operating efficiency of the purification unit but also increases the workload of maintenance personnel. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a purification device for hydrogen production through water electrolysis.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: It includes a housing, a movable component connected to the bottom surface of the housing, an air pump fixed to one outer surface of the housing by bolts, one end of the air pump connected to an air inlet pipe, and the other end of the air pump connected to the interior of the housing via a pipe. A moisture filter plate, an oxygen filter plate, and a carbon dioxide filter plate are detachably connected inside the housing. An adsorber and a membrane separator are fixed to the interior of the housing by bolts. A battery is fixed to one inner surface of the housing by bolts. An air outlet pipe is connected to one side of the housing. A control panel is bolted to one outer surface of the housing. The adsorber, membrane separator, and control panel are electrically connected to the control panel.

[0006] As a further description of the above technical solution:

[0007] The movable component includes threaded cylinders welded to the four corners of the bottom surface of the door. Each of the four threaded cylinders has a threaded post threaded inside. The bottom ends of each of the four threaded posts extend to the bottom of the threaded cylinder and are welded with connecting blocks. Each of the four connecting blocks is rotatably connected to a caster wheel with a locking mechanism.

[0008] As a further description of the above technical solution:

[0009] The upper and lower inner surfaces of the housing are each provided with three slots. The two ends of the moisture filter plate, the two ends of the oxygen filter plate, and the two ends of the carbon dioxide filter plate are respectively inserted into the corresponding slots. The moisture filter plate, the oxygen filter plate, and the carbon dioxide filter plate are each provided with a hole on one side. The moisture filter plate, the oxygen filter plate, and the carbon dioxide filter plate are all connected to the housing by connecting components.

[0010] As a further description of the above technical solution:

[0011] The connecting assembly includes a fixing block welded to the top surface of the housing, a plug rod slidably connected through the fixing block, one end of the plug rod being inserted into a corresponding socket, a pull block being welded to the other end of the plug rod, and a return spring being sleeved on the outside of the plug rod.

[0012] As a further description of the above technical solution:

[0013] The two ends of the reset spring are welded to the side of the fixed block and the side of the pull block, respectively.

[0014] As a further description of the above technical solution:

[0015] The membrane separator is electrically connected to the battery.

[0016] As a further description of the above technical solution:

[0017] A door is connected to one side of the box body, and a handle is welded to the door. A rubber pad is adhered to the side of the door near the box body, and the rubber pad is in close contact with the box body.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the movable component consisting of a threaded cylinder, a threaded column, a connecting block, and casters not only allows for flexible movement of the casters to meet the position adjustment needs in different scenarios, reducing handling costs and operational complexity, but also allows for adjustment of the caster height by rotating the threaded column, easily adapting to uneven ground, ensuring the box remains stable during operation, and preventing the purification effect or damage to internal components due to tilting or shaking.

[0020] 2. In this utility model, the moisture filter plate, oxygen filter plate, and carbon dioxide filter plate are detachably connected to the connecting assembly via slots. The plug rod, pull block, and return spring in the connecting assembly cooperate to allow the filter plates to be installed and removed without the need for complicated tools. The operation can be completed simply by pulling and releasing the pull block, which greatly shortens the maintenance time, reduces the workload of maintenance personnel, ensures that the device can be quickly restored to operation, and improves continuous working efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the interior of a purification device for hydrogen production by water electrolysis, as proposed in this utility model.

[0022] Figure 2 This invention proposes a purification device for hydrogen production via water electrolysis. Figure 1 Enlarged view at point A;

[0023] Figure 3 This is an external schematic diagram of a purification device for hydrogen production by water electrolysis proposed in this utility model. Figure 1 ;

[0024] Figure 4 This is an external schematic diagram of a purification device for hydrogen production by water electrolysis proposed in this utility model. Figure 2 .

[0025] Legend:

[0026] 1. Door; 2. Body; 3. Air pump; 4. Inlet pipe; 5. Threaded cylinder; 6. Threaded column; 7. Connecting block; 8. Casters; 9. Outlet pipe; 10. Moisture filter plate; 11. Oxygen filter plate; 12. Carbon dioxide filter plate; 13. Adsorber; 14. Membrane separator; 15. Insertion hole; 16. Fixing block; 17. Pull block; 18. Insert rod; 19. Return spring; 20. Battery; 21. Slot. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-4An embodiment of this utility model includes a housing 2, with a movable component connected to the bottom surface of the housing 2. An air pump 3 is fixed to one outer surface of the housing 2 by bolts. One end of the air pump 3 is connected to an air inlet pipe 4, and the other end of the air pump 3 is connected to the interior of the housing 2 through a pipe. A moisture filter plate 10, an oxygen filter plate 11, and a carbon dioxide filter plate 12 are detachably connected inside the housing 2. An adsorber 13 and a membrane separator 14 are fixed to the interior of the housing 2 by bolts. A battery 20 is fixed to one inner surface of the housing 2 by bolts. An air outlet pipe 9 is connected to one side of the housing 2. A control panel is connected to one outer surface of the housing 2 by bolts. The adsorber 13, the membrane separator 14, and the control panel are electrically connected.

[0029] The moving assembly includes threaded cylinders 5 welded to the four corners of the bottom surface of the door 1. Each of the four threaded cylinders 5 has a threaded post 6 threaded inside. The bottom ends of each of the four threaded posts 6 extend below the threaded cylinders 5 and are welded with connecting blocks 7. Each of the four connecting blocks 7 is rotatably connected to a caster wheel 8 with a locking mechanism. Three slots 21 are provided on the upper and lower inner surfaces of the housing 2. The ends of the moisture filter plate 10, the oxygen filter plate 11, and the carbon dioxide filter plate 12 are respectively inserted into the corresponding slots 21. Insertion holes 15 are provided on one side of each of the moisture filter plate 10, oxygen filter plate 11, and carbon dioxide filter plate 12. Connecting components connect the moisture filter plate 10, oxygen filter plate 11, and carbon dioxide filter plate 12 to the housing 2. The connecting assembly secures the filter plate, making its assembly and disassembly convenient and efficient. The connecting assembly includes a fixing block 16 welded to the top surface of the housing 2. A rod 18 is slidably connected through the fixing block 16. One end of the rod 18 is inserted into a corresponding insertion hole 15, and a pull block 17 is welded to the other end of the rod 18. A return spring 19 is sleeved on the outside of the rod 18. The two ends of the return spring 19 are welded to the side of the fixing block 16 and the side of the pull block 17, respectively. The membrane separator 14 is electrically connected to the battery 20. A door 1 is connected to one side of the housing 2. A handle is welded to the door 1. A rubber pad is bonded to the side of the door 1 near the housing 2. The rubber pad is in close contact with the housing 2, enhancing the sealing of the housing 2 and preventing leakage of unpurified hydrogen.

[0030] Working principle: First, before the device is put into use, the housing 2 is moved to a suitable position by the moving components. During movement, the casters 8 with locking mechanisms are used to achieve flexible steering and movement; when encountering uneven ground, the position of the threaded column 6 inside the threaded cylinder 5 is rotated to adjust the height of the four casters 8 to keep the housing 2 stable, and then the casters 8 are locked to prevent the device from moving.

[0031] During operation, the battery 20 provides power to the air pump 3, adsorber 13, membrane separator 14, and control panel. The air pump 3 draws in impurity-laden hydrogen produced by water electrolysis through the air inlet pipe 4 and delivers the hydrogen to the interior of the housing 2 through a pipeline. The hydrogen first passes through the moisture filter plate 10, where the filter material adsorbs the moisture in the hydrogen, initially reducing its humidity. Next, it passes through the oxygen filter plate 11, where the filter material reacts with or adsorbs the oxygen in the hydrogen, reducing its oxygen content. Subsequently, the hydrogen passes through the carbon dioxide filter plate 12, where the filter material specifically adsorbs carbon dioxide, further purifying the hydrogen.

[0032] After passing through three stages of filtration, the hydrogen continues to flow to the adsorber 13. The adsorbent in the adsorber 13, such as molecular sieves, deeply adsorbs the trace impurities remaining in the hydrogen, improving the purity of the hydrogen. Then, the hydrogen enters the membrane separator 14, where the membrane selectively permeates different gas components to separate the remaining trace impurities, achieving high-precision purification of the hydrogen. The purified hydrogen is discharged through the outlet pipe 9 for subsequent use.

[0033] When it is necessary to replace the moisture filter plate 10, oxygen filter plate 11, or carbon dioxide filter plate 12, open the box door 1, pull the pull block 17 to pull the insertion rod 18 out of the insertion hole 15, and at the same time the return spring 19 is stretched. At this time, the filter plate can be removed from the slot 21. When installing a new filter plate, insert both ends of it into the corresponding slot 21, release the pull block 17, and the return spring 19 returns to its original state to push the insertion rod 18 into the insertion hole 15 to complete the fixing of the filter plate. The rubber gasket on the box door 1 ensures the airtightness of the box body 2 to prevent the leakage of unpurified hydrogen.

[0034] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0035] The structural technologies of oxygen filter plates, carbon dioxide filter plates, adsorbers, and membrane separators are already very mature and widely used. At the same time, this application does not protect the specific structure of oxygen filter plates, carbon dioxide filter plates, adsorbers, and membrane separators. Those skilled in the art can select oxygen filter plates, carbon dioxide filter plates, adsorbers, and membrane separators based on practical experience and usage requirements.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A purification device for hydrogen production by water electrolysis, comprising a housing (2), characterized in that: The bottom surface of the box (2) is connected to a movable component. An air pump (3) is fixed to one side of the outer surface of the box (2) by bolts. One end of the air pump (3) is connected to an air inlet pipe (4). The other end of the air pump (3) is connected to the inside of the box (2) through a pipe. A moisture filter plate (10), an oxygen filter plate (11), and a carbon dioxide filter plate (12) are detachably connected inside the box (2). An adsorber (13) and a membrane separator (14) are fixed to the inside of the box (2) by bolts. A storage battery (20) is fixed to one side of the inner surface of the box (2) by bolts. An air outlet pipe (9) is connected to one side of the box (2). A control panel is connected to one side of the outer surface of the box (2) by bolts. The adsorber (13) and the membrane separator (14) are electrically connected to the control panel.

2. The purification apparatus for hydrogen production by water electrolysis according to claim 1, characterized in that: The moving component includes threaded cylinders (5) welded to the four corners of the bottom surface of the box door (1). Each of the four threaded cylinders (5) is threaded with a threaded post (6). The bottom ends of the four threaded posts (6) extend to the bottom of the threaded cylinders (5) and are welded with connecting blocks (7). Each of the four connecting blocks (7) is rotatably connected with a universal wheel (8) with a locking mechanism.

3. The purification apparatus for hydrogen production by water electrolysis according to claim 1, characterized in that: The upper and lower inner surfaces of the housing (2) are provided with three slots (21). The two ends of the water filter plate (10), the two ends of the oxygen filter plate (11), and the two ends of the carbon dioxide filter plate (12) are respectively inserted into the corresponding slots (21). The water filter plate (10), the oxygen filter plate (11), and the carbon dioxide filter plate (12) are each provided with a hole (15). The water filter plate (10), the oxygen filter plate (11), and the carbon dioxide filter plate (12) are all connected to the housing (2) by a connecting component.

4. A purification apparatus for hydrogen production by water electrolysis according to claim 3, characterized in that: The connecting assembly includes a fixing block (16) welded to the top surface of the box (2), a plug rod (18) is slidably connected through the fixing block (16), one end of the plug rod (18) is inserted into the corresponding plug hole (15), the other end of the plug rod (18) is welded with a pull block (17), and a return spring (19) is sleeved on the outside of the plug rod (18).

5. A purification apparatus for hydrogen production by water electrolysis according to claim 4, characterized in that: The two ends of the reset spring (19) are welded to the side of the fixing block (16) and the side of the pull block (17), respectively.

6. A purification apparatus for hydrogen production by water electrolysis according to claim 1, characterized in that: The membrane separator (14) is electrically connected to the battery (20).

7. A purification apparatus for hydrogen production by water electrolysis according to claim 1, characterized in that: A door (1) is connected to one side of the box body (2). A handle is welded to the door (1). A rubber pad is bonded to the side of the door (1) near the box body (2). The rubber pad is in close contact with the box body (2).

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