Alkaline hydrogen production apparatus with auxiliary agitation structure

Abstract

The utility model discloses a kind of alkaline hydrogen production equipment with auxiliary agitation structure, including alkaline electrolytic cell.The utility model relates to hydrogen production equipment technical field.The alkaline hydrogen production equipment with auxiliary agitation structure, the problem of electrode disc surface bubble accumulation can be solved by the blade set, by magnetic coupling effect starting drive mechanism through connecting assembly makes inner magnetic rotor rotation, then the rotating rod of inner magnetic rotor bottom rotates in turn, and drive its outside evenly distributed blade high-speed rotation in the electrolyte inside alkaline electrolytic cell, and rotating blade will produce strong agitation effect to electrolyte, form directional eddy current directly, high-efficiencyly flush electrode disc surface this process can rapidly peel off the tiny bubble attached on electrode, make it accelerate escape, to significantly reduce electrode surface bubble coverage area, effectively avoid groove voltage abnormal rise, reach the purpose of energy saving and consumption reduction, improve hydrogen production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production equipment technology, specifically an alkaline hydrogen production equipment with an auxiliary stirring structure. Background Technology

[0002] Alkaline water electrolysis for hydrogen production is a mature, large-scale hydrogen production technology. Its principle involves passing a direct current through an electrolytic cell filled with an alkaline electrolyte (such as KOH solution), causing water to decompose at the cathode and anode to produce hydrogen and oxygen, respectively.

[0003] Referring to the patent application CN219653141U, an alkaline water electrolysis hydrogen production device is disclosed, including an externally mounted tank frame, a crossbeam, tension bolts, a cathode liquid main pipe, an anolyte main pipe, and unit tanks. The tank frame has a crossbeam at the top, tension bolts on one side, a cathode liquid main pipe on one side of the bottom, and an anolyte main pipe on one side of the cathode liquid main pipe. Several unit tanks are arranged inside the tank frame. Each unit tank includes a first shell, an inlet dispersion pipe, stiffening ribs, and an electrode mesh. A second shell is located on one side of the first shell. Clamping plates are provided at the top and bottom joints of the first and second shells, with several fixing bolts screwed onto the clamping plates. A cathode chamber is located inside the second shell, and an anode chamber is located inside the first shell. Connecting pipes are provided on one side of both the first and second shells. This utility model of an independent alkaline water electrolysis hydrogen production device has the advantages of easy maintenance, good stability, and inherent safety.

[0004] However, the above technology uses a cathode and anode disks to decompose and generate hydrogen gas separately. The tiny bubbles generated during the electrolysis process tend to adhere to the electrode surface, increasing the solution resistance. Existing devices are not convenient for eliminating tiny bubbles on the electrode disk surface, which can easily lead to increased cell voltage, increased energy consumption, and reduced hydrogen production efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an alkaline hydrogen production device with an auxiliary stirring structure, which solves the problem that existing alkaline hydrogen production devices are inconvenient to eliminate tiny bubbles on the electrode plate surface, which easily leads to increased cell voltage, increased energy consumption, and reduced hydrogen production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an alkaline hydrogen production device with an auxiliary stirring structure, comprising an alkaline electrolyzer, and further comprising: An elimination mechanism is provided on the top surface of the alkaline electrolytic cell cavity to eliminate air bubbles on the surface of the electrode disk. The elimination mechanism includes several fixed plates fixedly installed on the top surface of the alkaline electrolytic cell cavity. The bottom surface of the several fixed plates is provided with a stirring component for stirring the electrolyte to eliminate air bubbles. The top surface of the alkaline electrolytic cell is provided with a connecting component for transmitting driving force. The drive mechanism, located on the top surface of the alkaline electrolytic cell, provides driving force for the connecting components.

[0007] Preferably, the agitation assembly includes an inner isolation sleeve fixedly installed on the bottom surface of several fixed plates. An inner magnetic rotor for receiving magnetic energy and converting it into mechanical torque is movably installed inside the inner isolation sleeve. A rotating rod is fixedly installed on the bottom surface of the inner magnetic rotor. Several blades for agitating the electrolyte and eliminating bubbles are fixedly installed on the outer side of the rotating rod. The bottom surface of the rotating rod movably penetrates the interior of the inner isolation sleeve and extends into the interior of the alkaline electrolytic cell.

[0008] Preferably, the connecting assembly includes several connecting plates movably mounted on the top surface of the alkaline electrolytic cell. Both ends of the top surface of the several connecting plates are threaded with wing bolts for fixing the position of the several connecting plates. An outer isolation sleeve is fixedly mounted on the top surface of each of the several connecting plates. An outer magnetic rotor for transmitting a rotating magnetic field is movably mounted inside the outer isolation sleeve. A connecting rod is fixedly mounted on the top surface of the outer magnetic rotor. A slot is formed on the top surface of the connecting rod.

[0009] Preferably, the bottom thread of the wing bolt penetrates the top surface of several connecting plates and extends into the interior of the alkaline electrolytic cell to fix the position of several connecting plates, and the top surface of the connecting rod movably penetrates the interior of the outer isolation sleeve and extends to the top surface of the outer isolation sleeve.

[0010] Preferably, the driving mechanism includes mounting plates that are screwed onto the left and right sides of the top surface of the alkaline electrolytic cell. A mounting frame is fixedly mounted on the top surface of the mounting plate, and a plurality of driving rods for driving the connecting components to rotate are movably mounted on the bottom surface of the mounting frame. A clamp is fixedly mounted on the bottom surface of the driving rods, and a drive motor for driving the plurality of driving rods to rotate is fixedly mounted on the top surface of the mounting frame.

[0011] Preferably, the drive ends of the plurality of drive motors movably penetrate the top surface of the mounting bracket and are fixedly mounted on the top end of the drive rod to drive the drive rod to rotate.

[0012] This invention provides an alkaline hydrogen production device with an auxiliary stirring structure. Compared with the prior art, it has the following advantages: (1) The alkaline hydrogen production equipment with auxiliary stirring structure can solve the problem of bubble accumulation on the electrode plate surface by setting blades. The drive mechanism is started by magnetic coupling and the inner magnetic rotor is rotated through the connecting component. Then the rotating rod at the bottom of the inner magnetic rotor rotates accordingly and drives the blades evenly distributed on its outer side to rotate at high speed in the electrolyte inside the alkaline electrolysis cell. The rotating blades will generate a strong stirring effect on the electrolyte, forming a directional vortex that directly and efficiently washes the electrode plate surface. This process can quickly peel off the tiny bubbles attached to the electrode and accelerate their escape, thereby significantly reducing the bubble coverage area on the electrode surface, effectively avoiding abnormal rise in cell voltage, and achieving the purpose of energy saving, consumption reduction and improved hydrogen production efficiency.

[0013] (2) The alkaline hydrogen production equipment with auxiliary stirring structure can achieve complete sealing and high efficiency and reliability of power transmission through the set drive mechanism and connecting components. The drive motor drives the outer magnetic rotor in the connecting components to rotate through the drive rod and the card. The rotating magnetic field of the outer magnetic rotor penetrates the outer isolation sleeve and the inner isolation sleeve, and drives the inner magnetic rotor to rotate synchronously without contact. This magnetic coupling transmission method makes all the mechanical parts that provide driving force located outside the sealed environment of the alkaline electrolysis cell, avoiding the risk of high pressure hydrogen leakage caused by penetrating the cell, and ensuring high safety. Attached Figure Description

[0014] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model; Figure 2 This is a three-dimensional appearance schematic diagram of the elimination mechanism of this utility model; Figure 3 This is a three-dimensional view of the explosion-eliminating mechanism of this utility model; Figure 4 This is a three-dimensional appearance diagram of the drive mechanism of this utility model.

[0015] In the diagram: 1-Alkaline electrolytic cell, 2-Elimination mechanism, 21-Connecting rod, 22-Outer isolation sleeve, 23-Wing bolt, 24-Connecting plate, 25-Fixing plate, 26-Inner isolation sleeve, 27-Rotating rod, 28-Blade, 29-Outer magnetic rotor, 210-Inner magnetic rotor, 211-Slot, 3-Drive mechanism, 31-Drive rod, 32-Card, 33-Drive motor, 34-Mounting plate, 35-Mounting bracket. Detailed Implementation

[0016] 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.

[0017] See Figures 1-4 This utility model provides two technical solutions: First embodiment: An alkaline hydrogen production device with an auxiliary stirring structure, including an alkaline electrolyzer 1, and further comprising: Elimination mechanism 2 is set on the top surface of the inner cavity of alkaline electrolytic cell 1 to eliminate air bubbles on the surface of electrode disk. Elimination mechanism 2 includes several fixed plates 25 fixedly installed on the top surface of the inner cavity of alkaline electrolytic cell 1. The bottom surface of several fixed plates 25 is provided with a stirring component for stirring the electrolyte to eliminate air bubbles. The top surface of alkaline electrolytic cell 1 is provided with a connecting component for transmitting driving force. The drive mechanism 3 is located on the top surface of the alkaline electrolysis cell 1 and is used to provide driving force for the connecting components.

[0018] The agitation assembly includes an inner isolation sleeve 26 fixedly mounted on the bottom surface of several fixed plates 25. An inner magnetic rotor 210 for receiving magnetic energy and converting it into mechanical torque is movably mounted inside the inner isolation sleeve 26. The inner isolation sleeve 26 and the rotating rod 27 cooperate to form a complete, non-contact magnetic coupling transmission system. The rotating rod 27 is fixedly mounted on the bottom surface of the inner magnetic rotor 210. Several blades 28 for agitating the electrolyte and eliminating bubbles are fixedly mounted on the outside of the rotating rod 27. The blades 28 are distributed in a circumferential pattern on the outside of the rotating rod 27, so that the agitation action can occur directly and efficiently inside the electrolyte, and the electrode disk surface is washed with a highly targeted force. The bottom surface of the rotating rod 27 moves through the interior of the inner isolation sleeve 26 and extends into the interior of the alkaline electrolytic cell 1.

[0019] The blades 28 can solve the problem of bubble accumulation on the electrode plate surface. The drive mechanism 3 is activated by magnetic coupling to make the inner magnetic rotor 210 rotate through the connecting component. Then, the rotating rod 27 at the bottom of the inner magnetic rotor 210 rotates accordingly, and drives the blades 28 evenly distributed on its outer side to rotate at high speed in the electrolyte inside the alkaline electrolysis cell 1. The rotating blades 28 will generate a strong stirring effect on the electrolyte, forming a directional vortex that directly and efficiently washes the surface of the electrode plate. This process can quickly peel off the tiny bubbles attached to the electrode and accelerate their escape, thereby significantly reducing the bubble coverage area on the electrode surface, effectively avoiding abnormal rise in cell voltage, and achieving the purpose of energy saving, consumption reduction and improved hydrogen production efficiency.

[0020] The second embodiment differs from the first embodiment in that the connecting assembly includes several connecting plates 24 movably mounted on the top surface of the alkaline electrolytic cell 1. Both ends of the top surface of each connecting plate 24 are threaded with wing bolts 23 for fixing their positions. An outer isolation sleeve 22 is fixedly mounted on the top surface of each connecting plate 24. An outer magnetic rotor 29 for transmitting the rotating magnetic field is movably mounted inside the outer isolation sleeve 22. A connecting rod 21 is fixedly mounted on the top surface of the outer magnetic rotor 29. A slot 211 is formed on the top surface of the connecting rod 21. The bottom thread of the wing bolts 23 penetrates the top surface of the connecting plates 24 and extends into the interior of the alkaline electrolytic cell 1 to fix the positions of the connecting plates 24, ensuring the stability of the connecting assembly under operational vibration and facilitating disassembly. During maintenance, the top surface of the connecting rod 21 movably penetrates the interior of the outer isolation sleeve 22 and extends to the top surface of the outer isolation sleeve 22. The drive mechanism 3 includes mounting plates 34 that are installed on the left and right sides of the top surface of the alkaline electrolytic cell 1 by screws. A mounting bracket 35 is fixedly installed on the top surface of the mounting plate 34. Several drive rods 31 for driving the connecting assembly to rotate are movably installed on the bottom surface of the mounting bracket 35. A clamp 32 is fixedly installed on the bottom surface of the drive rod 31, and the size and specifications of the clamp 32 are compatible with the size and specifications of the clamp slot 211, ensuring the directness and efficiency of power transmission. A drive motor 33 for driving the several drive rods 31 to rotate is fixedly installed on the top surface of the mounting bracket 35. The drive ends of the several drive motors 33 movably penetrate the top surface of the mounting bracket 35 and are fixedly installed on the top of the drive rods 31 to drive the drive rods 31 to rotate.

[0021] The drive mechanism 3 and connecting components enable a completely sealed and highly efficient power transmission. The drive motor 33 drives the outer magnetic rotor 29 in the connecting components to rotate via the drive rod 31 and the clamp 32. The rotating magnetic field of the outer magnetic rotor 29 penetrates the outer isolation sleeve 22 and the inner isolation sleeve 26, driving the inner magnetic rotor 210 to rotate synchronously without contact. This magnetic coupling transmission method ensures that all mechanical components providing driving force are located outside the sealed environment of the alkaline electrolysis cell 1, avoiding the risk of high-pressure hydrogen leakage caused by penetrating the cell, thus ensuring high safety.

[0022] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0023] During use, the operator first connects the alkaline electrolytic cell 1 to the external power supply and piping system. After connecting the DC power supply, the equipment begins the electrolysis of water to produce hydrogen. During this process, hydrogen and oxygen microbubbles are continuously generated on the cathode and anode surfaces. If these bubbles adhere to the electrode plate surface, they will increase the solution resistance, leading to increased cell voltage and energy consumption. To eliminate these bubbles, the operator starts the drive motor 33, which drives the drive rod 31 to rotate the clamp 32. The clamp 32 engages with the slot 211 at the top of the connecting rod 21, thereby transmitting the rotational power to the connecting rod 21. At this time, the connecting rod 21 drives the outer magnetic rotor 29, which is fixed at its bottom, to rotate synchronously inside the outer isolation sleeve 22. The rotating magnetic field generated during the rotation of the 9th rotor penetrates the outer isolation sleeve 22 and the inner isolation sleeve 26, and acts on the inner magnetic rotor 210, which is completely sealed in the inner isolation sleeve 26. Through magnetic coupling, the inner magnetic rotor 210 rotates synchronously with the outer magnetic rotor 29. Then, the rotating rod 27 at the bottom of the inner magnetic rotor 210 rotates accordingly, and drives the blades 28 evenly distributed on its outer side to rotate at high speed in the electrolyte inside the alkaline electrolytic cell 1. The rotating blades 28 will generate a strong stirring effect on the electrolyte, forming a directional eddy current that directly and efficiently scours the surface of the electrode disk.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An alkaline hydrogen production apparatus with auxiliary agitation structure comprising an alkaline electrolyzer (1), characterized in that: Also includes: Elimination mechanism (2) is provided on the top surface of the inner cavity of alkaline electrolytic cell (1) to eliminate air bubbles on the surface of electrode disk. The elimination mechanism (2) includes several fixed plates (25) fixedly installed on the top surface of the inner cavity of alkaline electrolytic cell (1). The bottom surface of the several fixed plates (25) is provided with a stirring component for stirring the electrolyte to eliminate air bubbles. The top surface of alkaline electrolytic cell (1) is provided with a connecting component for transmitting driving force. The drive mechanism (3) is located on the top surface of the alkaline electrolytic cell (1) to provide driving force for the connecting components.

2. The alkaline hydrogen generation apparatus with auxiliary agitation structure according to claim 1, characterized in that: The stirring assembly includes an inner isolation sleeve (26) fixedly installed on the bottom surface of several fixed plates (25). An inner magnetic rotor (210) for receiving magnetic energy and converting it into mechanical torque is movably installed inside the inner isolation sleeve (26). A rotating rod (27) is fixedly installed on the bottom surface of the inner magnetic rotor (210). Several blades (28) for stirring the electrolyte and eliminating bubbles are fixedly installed on the outside of the rotating rod (27). The bottom surface of the rotating rod (27) moves through the interior of the inner isolation sleeve (26) and extends into the interior of the alkaline electrolytic cell (1).

3. The alkaline hydrogen generation apparatus with auxiliary agitation structure according to claim 1, characterized in that: The connecting assembly includes several connecting plates (24) movably mounted on the top surface of the alkaline electrolytic cell (1). Both ends of the top surface of the several connecting plates (24) are threaded with wing bolts (23) for fixing the position of the several connecting plates (24). The top surface of the several connecting plates (24) is fixedly mounted with an outer isolation sleeve (22). An outer magnetic rotor (29) for transmitting a rotating magnetic field is movably mounted inside the outer isolation sleeve (22). A connecting rod (21) is fixedly mounted on the top surface of the outer magnetic rotor (29). A slot (211) is opened on the top surface of the connecting rod (21).

4. The alkaline hydrogen generation apparatus with auxiliary agitation structure according to claim 3, characterized in that: The bottom thread of the butterfly bolt (23) penetrates the top surface of several connecting plates (24) and extends into the interior of the alkaline electrolytic cell (1) to fix the position of several connecting plates (24). The top surface of the connecting rod (21) movably penetrates the interior of the outer isolation sleeve (22) and extends to the top surface of the outer isolation sleeve (22).

5. The alkaline hydrogen generation apparatus with auxiliary agitation structure according to claim 1, characterized in that: The drive mechanism (3) includes mounting plates (34) that are installed on the left and right sides of the top surface of the alkaline electrolytic cell (1) by screws. A mounting bracket (35) is fixedly installed on the top surface of the mounting plate (34). A plurality of drive rods (31) for driving the connecting components to rotate are movably installed on the bottom surface of the mounting bracket (35). A clamp (32) is fixedly installed on the bottom surface of the drive rods (31). A drive motor (33) for driving the plurality of drive rods (31) to rotate is fixedly installed on the top surface of the mounting bracket (35).

6. The alkaline hydrogen generation apparatus with auxiliary agitation structure according to claim 5, characterized in that: The drive ends of several drive motors (33) are movably inserted through the top surface of the mounting bracket (35) and fixedly mounted on the top of the drive rod (31) to drive the drive rod (31) to rotate.

Images