A water electrolysis hydrogen production apparatus
By using magnetically connected monitoring wires and limit mechanisms, combined with a PLC controller, the problem of inaccurate water level monitoring in water electrolysis hydrogen production equipment is solved, ensuring equipment safety and improving hydrogen purity and collection efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HUIXING AIR LIQUEFACTION CO LTD
- Filing Date
- 2025-03-14
- Publication Date
- 2026-07-21
AI Technical Summary
In existing water electrolysis hydrogen production equipment, the water level monitoring is inaccurate and easily interfered with during the water replenishment process, which can lead to water overflow, damage to the equipment, and safety hazards.
The system employs a combination of magnetically connected monitoring wires and scale lines, along with a limit mechanism and a PLC controller, to precisely control the water level and ensure the stability of the monitoring probe. The design of the water suction plate and gas outlet pipe also improves the purity of the hydrogen.
It achieves accurate and stable water level monitoring, prevents water overflow, protects equipment safety, and improves the purity and collection efficiency of hydrogen.
Smart Images
Figure CN224531056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydrogen production equipment technology, specifically a water electrolysis hydrogen production equipment. Background Technology
[0002] Water electrolysis hydrogen production equipment is a device that uses the principle of electrolysis to electrolyze water into hydrogen and oxygen. Its core component, the electrolyzer, uses direct current to cause water molecules to undergo oxidation-reduction reactions at the electrodes, thereby producing hydrogen at the cathode and oxygen at the anode. This process not only provides important raw materials for the hydrogen energy industry, but also promotes the development and utilization of clean energy.
[0003] In the daily operation of water electrolysis hydrogen production equipment, water needs to be replenished to the unit regularly to ensure the normal operation of the electrolyzer. However, if the water replenishment process is not properly controlled, or is affected by factors such as sensor failure or control system errors, the water level in the unit may rise abnormally. Once the water level exceeds the safe capacity of the electrolyzer, water will overflow from the unit. This not only wastes water resources, but more importantly, the overflowing water may directly contact the electronic components outside the unit, causing the components to become damp, short-circuit, or even cause more serious equipment damage and safety hazards. To address this problem, existing technologies have attempted to adopt various solutions, such as pressure-type water level sensors, which calculate the water level by measuring liquid pressure. However, they are easily affected by factors such as pressure fluctuations and temperature changes, resulting in inaccurate measurements. Optical water level sensors detect water levels using the principle of light refraction or reflection, but they are easily affected by light interference, dust accumulation, and water transparency, and have high maintenance costs. Utility Model Content
[0004] The purpose of this invention is to provide a water electrolysis hydrogen production device to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model provides a water electrolysis hydrogen production device, including an electrolysis tank body. A water pump is installed on the side wall of the electrolysis tank body. The water pump is connected to an inlet pipe that penetrates into and communicates with the electrolysis tank body. The electrolysis tank body is equipped with a water level monitoring mechanism, which includes a water level monitoring box installed on the upper surface of the electrolysis tank body. Two vertically symmetrical rotating rods are rotatably connected to the front of the water level monitoring box. The two rotating rods are respectively fitted with a first gear and a second gear. The first gear and the second gear mesh. Both the first gear and the second gear are fixedly connected to a take-up reel. The take-up reel is fitted on the outer arc wall of the rotating rod. The take-up reel is wound with a monitoring wire. A monitoring hole is opened on the upper surface of the electrolysis tank body. One monitoring wire passes through the monitoring hole and penetrates into the electrolysis tank body. The end of the other monitoring wire is located on the outer wall of the electrolysis tank body. A magnet is installed at the end of the monitoring wire located in the electrolysis tank body. A monitoring probe is fixedly installed on the magnet. An electromagnet is installed at the end of the other monitoring wire. The electromagnet is magnetically connected to the magnet.
[0006] Furthermore, the water level monitoring box is equipped with a limiting mechanism, which includes an abutment block meshing with the upper part of the first gear, a fixing block fixedly installed on the upper surface of the abutment block, a spring fixedly installed on the upper surface of the fixing block, a fixing plate fixedly connected to the top of the spring, and the fixing plate fixedly connected to the water level monitoring box.
[0007] Furthermore, one of the monitoring wires connected to the electromagnet is equipped with scale lines.
[0008] Furthermore, a mounting block is fixedly installed on the side of the electromagnet away from the main body of the electrolysis tank, and a handle is fixedly connected to the mounting block.
[0009] Furthermore, a rotating handle is fixedly installed at the end of one of the rotating rods connected to the second gear that is away from the water level monitoring box.
[0010] Furthermore, an installation tube is connected to the upper surface of the electrolysis tank body, and a water-absorbing plate that fits against the inner arc wall of the installation tube is installed on the inner arc wall of the installation tube.
[0011] Furthermore, the upper surface of the mounting pipe is connected to an air outlet pipe, and a positioning plate is installed at the bottom of the outer wall of the water level monitoring box. The lower surface of the positioning plate is attached to the upper surface of the electrolysis box body, and the positioning plate and the electrolysis box body have through mounting holes.
[0012] Furthermore, a PLC controller is installed on the upper surface of the electrolysis tank body, and the PLC controller is electrically connected to the monitoring probe, electromagnet and water pump.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model can accurately control the water level inside the electrolysis tank through a water level monitoring mechanism. The combination of monitoring wires, magnets, electromagnets and scale lines not only simplifies the water level monitoring process but also improves the accuracy of monitoring. The magnetic connection between the electromagnet and the magnets ensures the stability of the monitoring probe in the water and avoids water level monitoring errors caused by water surface fluctuations.
[0015] 2. This utility model ensures the stability of the monitoring wire length after adjustment through the design of the limiting mechanism. The combination of the abutment block, fixing block, spring and fixing plate realizes the effective limiting of the first gear and the second gear, preventing the change of the monitoring wire length due to accidental contact and ensuring the stable operation of the equipment. The water absorption plate installed on the inner arc wall of the installation pipe can effectively absorb the moisture generated during the electrolysis process, ensuring that the discharged hydrogen is dry. The connection design of the gas outlet pipe allows the dried hydrogen to be discharged smoothly, improving the purity and collection efficiency of the hydrogen. Attached Figure Description
[0016] Figure 1 A schematic diagram of the main structure of a water electrolysis hydrogen production device;
[0017] Figure 2 A schematic diagram of the top structure of a water electrolysis hydrogen production device;
[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0019] Figure 4 A schematic diagram of a water level monitoring mechanism in a water electrolysis hydrogen production device;
[0020] Figure 5 This is a schematic diagram of the structure of an electromagnet in a water electrolysis hydrogen production device.
[0021] In the picture:
[0022] 1. Electrolysis tank body; 2. Water pump; 3. Water inlet pipe; 4. Mounting pipe; 5. Gas outlet pipe; 6. Water level monitoring box; 7. PLC controller; 8. Water suction plate; 9. First gear; 10. Second gear; 11. Positioning plate; 12. Monitoring hole; 13. Take-up reel; 14. Abutment block; 15. Fixing block; 16. Spring; 17. Fixing plate; 18. Rotating handle; 19. Monitoring wire; 20. Magnet block; 21. Electromagnet; 22. Scale line; 23. Mounting block; 24. Handle; 25. Monitoring probe; 26. Rotating rod. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-5 This utility model provides a technical solution:
[0025] See Figure 1 , Figure 4 and Figure 5 As shown, a water electrolysis hydrogen production device includes an electrolysis tank body 1. A water pump 2 is installed on the side wall of the electrolysis tank body 1. The water pump 2 is connected to a water inlet pipe 3 that penetrates into and communicates with the electrolysis tank body 1. The electrolysis tank body 1 is equipped with a water level monitoring mechanism, which includes a water level monitoring box 6 installed on the upper surface of the electrolysis tank body 1. Two vertically symmetrical rotating rods 26 are rotatably connected to the front of the water level monitoring box 6. The two rotating rods 26 are respectively fitted with a first gear 9 and a second gear 10. The first gear 9 and the second gear 10 mesh with each other. Both the first gear 9 and the second gear 10 are fixedly connected to a take-up reel 13. The take-up reel 13 is fitted on the outer arc wall of the rotating rod 26. The take-up reel 13 is wound with a monitoring wire 19, one of which is connected to the second gear 10. A rotating handle 18 is fixedly installed at the end of the rotating rod 26 away from the water level monitoring box 6. A monitoring hole 12 is opened on the upper surface of the electrolysis box body 1. One monitoring wire 19 passes through the monitoring hole 12 and extends into the electrolysis box body 1. The end of the other monitoring wire 19 is located on the outer wall of the electrolysis box body 1. A magnet block 20 is installed at the end of the monitoring wire 19 located inside the electrolysis box body 1. A monitoring probe 25 is fixedly installed on the magnet block 20. An electromagnet 21 is installed at the end of the other monitoring wire 19. The electromagnet 21 is magnetically connected to the magnet block 20. One of the monitoring wires 19 connected to the electromagnet 21 is provided with a scale line 22. An installation block 23 is fixedly installed on the side of the electromagnet 21 away from the electrolysis box body 1. A handle 24 is fixedly connected to the installation block 23.
[0026] In the specific implementation process, rotating the handle 18 can drive the second gear 10 to rotate, which in turn drives the first gear 9 to rotate through the meshing relationship. This allows the two take-up reels 13 to simultaneously adjust the length of the two monitoring wires 19. After determining the reserved hydrogen preparation space according to the scale line 22 displayed on the monitoring wire 19, the handle 24 can adjust the position of the electromagnet 21 at any time. When the electromagnet 21 is energized, the magnet block 20 located in the electrolysis tank body 1 will be attracted, and the monitoring probe 25 will be in standby mode. When the water level in the electrolysis tank body 1 reaches the predetermined height, the monitoring probe 25 will detect the water level signal and control the start and stop of the water pump 2. This prevents the monitoring probe 25 from being affected by the rise and fall of the water level in the electrolysis tank body 1, which would cause fluctuations in the water and result in inaccurate water level monitoring.
[0027] See Figure 2 and Figure 3 As shown, the water level monitoring box 6 is equipped with a limiting mechanism, which includes an abutment block 14 meshing with the upper part of the first gear 9. A fixing block 15 is fixedly installed on the upper surface of the abutment block 14, and a spring 16 is fixedly installed on the upper surface of the fixing block 15. A fixing plate 17 is fixedly connected to the top of the spring 16, and the fixing plate 17 is fixedly connected to the water level monitoring box 6. In the specific implementation process, after determining the length of the monitoring wire 19 according to the scale line 22 displayed on the monitoring wire 19, the limiting mechanism limits the first gear 9 and the second gear 10. In the initial limiting state, the abutment block 14 meshes with and abuts against the first gear 9, and the first gear 9 and the second gear 10 cannot rotate. When it is necessary to adjust the length of the monitoring wire 19, the fixing block 15 is pulled, and the elasticity of the spring 16 is used to disengage the abutment block 14 from the meshing state with the first gear 9. After adjustment, it is only necessary to insert the abutment block 14 into the teeth of the first gear 9 to fix and limit it.
[0028] See Figure 2 As shown, a water-absorbing plate 8 is installed on the inner arc wall of the installation pipe 4, which is in contact with the inner arc wall of the installation pipe 4. An air outlet pipe 5 is connected to the upper surface of the installation pipe 4. A positioning plate 11 is installed at the bottom of the outer wall of the water level monitoring box 6. The lower surface of the positioning plate 11 is in contact with the upper surface of the electrolysis tank body 1. A through-hole is formed between the positioning plate 11 and the electrolysis tank body 1. In practice, the water-absorbing plate 8 is installed on the inner arc wall of the installation pipe 4, and its main function is to absorb moisture from the rising hydrogen gas in the electrolysis tank body 1. The air outlet pipe 5 is connected to the upper surface of the installation pipe 4 to discharge the dried hydrogen gas generated during water electrolysis.
[0029] See Figure 1As shown, a PLC controller 7 is installed on the upper surface of the electrolysis tank body 1. The PLC controller 7 is electrically connected to the monitoring probe 25, the electromagnet 21, and the water pump 2. In the specific implementation process, when the water level reaches the preset height, the monitoring probe 25 will send a signal to the PLC controller 7. The water pump 2 is responsible for supplying water to the electrolysis tank body 1 to ensure that the electrolyte and water level required for the water electrolysis reaction are maintained at an appropriate level. The PLC controller 7 controls the start and stop of the water pump 2 according to the water level signal fed back by the monitoring probe 25 to maintain the water level stability in the electrolysis tank body 1.
[0030] Working principle:
[0031] Rotate the handle 18, which drives the first gear 9 to rotate via the second gear 10. Simultaneously, adjust the wire length of the two take-up reels 13. Determine the reserved hydrogen preparation space according to the scale line 22 on the monitoring wire 19. Use the limiting mechanism to fix the first gear 9 to ensure the stability of the length of the monitoring wire 19. Turn on the electromagnet 21 to attract the magnet block 20 located in the electrolysis tank body 1, so that the monitoring probe 25 is in standby state. The water pump 2 supplies water to the electrolysis tank body 1 to ensure the water level and electrolyte concentration required for the water electrolysis reaction. The water electrolysis reaction takes place in the electrolysis tank body 1 to produce hydrogen and oxygen. When the hydrogen passes through the installation pipe 4, the water absorption plate 8 absorbs the moisture in it to ensure that the discharged hydrogen is dry. When the water level in the electrolysis tank body 1 reaches the preset height, the monitoring probe 25 detects the water level signal and sends the signal to the PLC controller 7. The PLC controller 7 controls the start and stop of the water pump 2 according to the received water level signal to maintain the stability of the water level in the electrolysis tank body 1. The dried hydrogen is discharged to the outside through the gas outlet pipe 5.
Claims
1. A water electrolysis hydrogen production device, comprising an electrolysis tank body (1), wherein a water pump (2) is installed on the side wall of the electrolysis tank body (1), and the water pump (2) is connected to a water inlet pipe (3) that penetrates into the electrolysis tank body (1) and communicates with the electrolysis tank body (1), characterized in that, The electrolysis tank body (1) is equipped with a water level monitoring mechanism, which includes a water level monitoring box (6) installed on the upper surface of the electrolysis tank body (1). The front of the water level monitoring box (6) is rotatably connected to two vertically symmetrical rotating rods (26). The two rotating rods (26) are respectively fitted with a first gear (9) and a second gear (10). The first gear (9) and the second gear (10) mesh. The first gear (9) and the second gear (10) are both fixedly connected to a take-up reel (13). The take-up reel (13) is fitted on the outer arc wall of the rotating rod (26). The electrolytic box body (1) is wound with monitoring wires (19). A monitoring hole (12) is opened on the upper surface of the electrolytic box body (1). One monitoring wire (19) passes through the monitoring hole (12) and enters the electrolytic box body (1). The end of the other monitoring wire (19) is located on the outer wall of the electrolytic box body (1). A magnet (20) is installed at the end of the monitoring wire (19) located in the electrolytic box body (1). A monitoring probe (25) is fixedly installed on the magnet (20). An electromagnet (21) is installed at the end of the other monitoring wire (19). The electromagnet (21) is magnetically connected to the magnet (20).
2. The water electrolysis hydrogen production equipment as described in claim 1, characterized in that: The water level monitoring box is equipped with a limiting mechanism, which includes an abutment block (14) meshing with the upper part of the first gear (9). A fixing block (15) is fixedly installed on the upper surface of the abutment block (14). A spring (16) is fixedly installed on the upper surface of the fixing block (15). A fixing plate (17) is fixedly connected to the top of the spring (16). The fixing plate (17) is fixedly connected to the water level monitoring box (6).
3. The water electrolysis hydrogen production equipment as described in claim 2, characterized in that: One of the monitoring wires (19) connected to the electromagnet (21) has a scale line (22).
4. The water electrolysis hydrogen production equipment as described in claim 3, characterized in that: An installation block (23) is fixedly installed on the side of the electromagnet (21) away from the electrolysis tank body (1), and a handle (24) is fixedly connected to the installation block (23).
5. The water electrolysis hydrogen production equipment as described in claim 4, characterized in that: One of the rotating rods (26) connected to the second gear (10) has a rotating handle (18) fixedly installed at the end away from the water level monitoring box (6).
6. The water electrolysis hydrogen production equipment as described in claim 5, characterized in that: The upper surface of the electrolysis tank body (1) is connected to an installation tube (4), and the inner arc wall of the installation tube (4) is fitted with a water-absorbing plate (8) that fits against the inner arc wall of the installation tube (4).
7. The water electrolysis hydrogen production equipment as described in claim 6, characterized in that: The upper surface of the mounting pipe (4) is connected to the air outlet pipe (5), and the bottom of the outer wall of the water level monitoring box (6) is equipped with a positioning plate (11). The lower surface of the positioning plate (11) is attached to the upper surface of the electrolysis box body (1), and the positioning plate (11) and the electrolysis box body (1) have through mounting holes.
8. The water electrolysis hydrogen production equipment as described in claim 7, characterized in that: A PLC controller (7) is installed on the upper surface of the electrolysis tank body (1). The PLC controller (7) is electrically connected to the monitoring probe (25), the electromagnet (21), and the water pump (2).