Hydrogen energy teaching and training equipment

Abstract

The utility model relates to a kind of hydrogen energy teaching practical training equipment, including fuel cell and the electric appliance connected with fuel cell, it is characterized by, still including the water electrolysis device providing hydrogen for fuel cell, the water electrolysis device includes water tank, electrolytic cell and gas-liquid separator, first water outlet is equipped on the water tank, the water inlet of electrolytic cell is communicated with the first water outlet of water tank, first hydrogen gas outlet and oxygen outlet are equipped on the electrolytic cell, hydrogen inlet, second hydrogen gas outlet and second water outlet are equipped on the gas-liquid separator, the first hydrogen gas outlet is communicated with hydrogen inlet, the second hydrogen gas outlet is connected fuel cell to deliver hydrogen to fuel cell inside.Using the above technical scheme, the utility model provides a kind of hydrogen energy teaching practical training equipment, hydrogen is prepared by water electrolysis, high safety, and can show the complete closed loop of hydrogen energy from production to application.

Description

Technical Field

[0001] This utility model relates to teaching and training equipment, and in particular to a hydrogen energy teaching and training equipment. Background Technology

[0002] Hydrogen energy is considered one of the most promising clean energy sources of the 21st century, boasting high energy density (approximately three times that of gasoline), zero emissions, high efficiency, wide availability, and renewability. As a low-carbon and zero-carbon energy source, it is gaining increasing attention. Hydrogen fuel cell vehicles are an important branch of the new energy vehicle sector, using hydrogen as their primary energy source to replace gasoline or diesel used in traditional fuel-powered vehicles. Their core component is the fuel cell, a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. It generates electricity through an electrochemical reaction, powering the vehicle's electric motor to drive the car. Throughout this process, hydrogen fuel cell vehicles achieve zero or low emissions, making them more environmentally friendly. The working principle of a hydrogen fuel cell vehicle mainly consists of three stages: hydrogen storage and transportation, the chemical reaction in the fuel cell, and the electric motor drive. First, hydrogen is stored in the vehicle's high-pressure tank. When needed, hydrogen is delivered to the fuel cell through a hydrogen fuel delivery system. Simultaneously, oxygen is drawn into the fuel cell from the air. Inside the fuel cell, hydrogen and oxygen undergo an electrochemical reaction in the presence of a catalyst. Hydrogen atoms lose electrons to become hydrogen ions, which pass through the proton exchange membrane to the cathode. The electrons, on the other hand, form an electric current through the external circuit, thus generating electrical energy. This electrical energy is then fed into the car's electric motor, which converts it into mechanical energy to drive the car's wheels and propel it forward.

[0003] Therefore, with the rapid development of hydrogen fuel cell technology, the importance of hydrogen energy vehicle teaching and training equipment in vocational education is becoming increasingly prominent.

[0004] Existing teaching devices mostly adopt a static hydrogen storage and direct gas supply mode, which has the following technical defects: During practical training, the pressure of hydrogen in the storage tank gradually decreases. The required pressure of hydrogen in the storage tank must not fall below three megapascals. Below this pressure, there is a risk of external impurities entering the storage tank. However, during training, only the basic principles need to be demonstrated. Furthermore, high-pressure hydrogen poses a risk of leakage, and the amount of hydrogen injected into the storage tank needs strict control. Therefore, only a small amount of hydrogen is needed for practical training. Consequently, when there are many students or the training period is long, the pressure of hydrogen in the storage tank may drop below three megapascals during use. Low pressure can also cause insufficient reaction within the hydrogen fuel cell stack, affecting the students' learning experience.

[0005] Some of these chemicals produce hydrogen through chemical reactions and then enter the fuel cell. However, improper handling of these chemicals can also lead to safety issues. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art by providing a hydrogen energy teaching and training device that produces hydrogen through water electrolysis, which is highly safe and can demonstrate the complete closed loop of hydrogen energy from production to application.

[0007] The technical solution of this utility model is as follows: A hydrogen energy teaching and training device, including a fuel cell and electrical appliances connected to the fuel cell, and a water electrolysis device for providing hydrogen to the fuel cell. The water electrolysis device includes a water tank, an electrolysis cell, and a gas-liquid separator. The water tank is provided with a first water outlet, which is connected to the water inlet of the electrolysis cell. The electrolysis cell is provided with a first hydrogen outlet and an oxygen outlet. The gas-liquid separator is provided with a hydrogen inlet, a second hydrogen outlet, and a second water outlet. The first hydrogen outlet is connected to the hydrogen inlet, and the second hydrogen outlet is connected to the fuel cell to deliver hydrogen into the fuel cell.

[0008] Using the above technical solution, water in the tank enters the electrolytic cell, where it is decomposed into oxygen and hydrogen. The hydrogen flows out from the first hydrogen outlet and enters the gas-liquid separator, where it undergoes gas-liquid separation to remove moisture. The separated hydrogen is dry and pure and enters the fuel cell, where it undergoes an electrochemical reaction with oxygen to generate electricity, powering electrical appliances for normal operation. This allows students to simultaneously learn the principles of water electrolysis and the electrochemical reaction between hydrogen and oxygen. Hydrogen production via water electrolysis is highly safe and demonstrates a complete closed loop from hydrogen production to application, solving the safety hazards associated with existing technologies that use hydrogen cylinders and chemical reactions to produce hydrogen.

[0009] A further feature of this invention is that the water tank is also provided with a water-oxygen recovery port, and the oxygen outlet and the second water outlet are both connected to the water-oxygen recovery port to recover the water and oxygen in the electrolytic cell and the water in the gas-liquid separator into the water tank.

[0010] By adopting the above further settings, a cycle is formed, avoiding waste.

[0011] A further feature of this invention is that the gas-liquid separator is positioned below the water tank, and the second water outlet, oxygen outlet, and water-oxygen recovery port are connected by a three-way pipe fitting to simultaneously recover the water and oxygen in the electrolytic cell and the water vapor in the gas-liquid separator into the water tank.

[0012] With the above-mentioned further configuration, since the gas-liquid separator is set lower than the water tank, the water separated in the gas-liquid separator cannot be recovered into the water tank. Therefore, a three-way pipe fitting is installed to connect and merge the second water outlet and the oxygen outlet. By utilizing the surface tension of water, the water can climb or flow along the pipe wall, and the rising of oxygen bubbles can also push the water flow upward, thereby realizing the recovery of water and oxygen into the water tank for recycling, and preventing the water separated in the gas-liquid separator from not being able to return to the water tank.

[0013] A further feature of this invention includes a fuel cell controller, wherein the fuel cell is equipped with a fan, the fan is connected to the fuel cell controller, and is turned on or off under the action of the fuel cell controller.

[0014] With the above-mentioned further configuration, when the fuel cell temperature is too high, the fan can be turned on by the controller to effectively cool it down.

[0015] A further feature of this invention is that the fuel cell is provided with an exhaust pipe, and the exhaust pipe is provided with a solenoid valve connected to the fuel cell controller to control the opening or closing of the solenoid valve.

[0016] With the above-mentioned further configuration, the solenoid valve is controlled by the fuel cell controller to discharge the exhaust gas inside the fuel cell.

[0017] A further feature of this invention is that it also includes a pressure reducing valve, which is located between the second hydrogen outlet and the fuel cell.

[0018] With the above-mentioned further configuration, when hydrogen is output from the gas-liquid separator, it is under high pressure. The pressure reducing valve can reduce the pressure of hydrogen to the working pressure required by the fuel cell, avoiding damage to the system or affecting the normal operation of the fuel cell due to excessive pressure, and effectively preventing overpressure, reducing the risk of explosion or leakage, thereby improving the safety of the system.

[0019] A further feature of this invention is that it also includes a filter, which is located between the first outlet of the water tank and the inlet of the electrolytic cell.

[0020] With the above-mentioned further configuration, the water in the tank is first filtered through a filter to remove impurities before entering the electrolyzer. This makes the water entering the electrolyzer purer, which helps to increase the production and purity of hydrogen and oxygen. At the same time, it can reduce the accumulation of pollutants in the water electrolyzer and prevent the accumulation of sediments or impurities in the electrolyzer, thereby affecting the performance of water electrolysis and hydrogen production efficiency.

[0021] A further feature of this invention includes a pressure gauge and a pressure controller, wherein the second hydrogen outlet, the pressure gauge, the pressure controller, and the pressure reducing valve are connected via a four-way valve.

[0022] With the above-mentioned further settings, the pressure gauge can display the current pressure value in real time, promptly detect whether the pressure is within the safe and preset operating range, and avoid affecting the performance of the fuel cell due to improper pressure. The pressure controller can regulate the hydrogen pressure to ensure that the hydrogen entering the fuel cell is kept within the appropriate operating pressure range. By precisely controlling the gas pressure, it prevents the impact on the operating efficiency and lifespan of the fuel cell. The combined use of the pressure gauge and pressure controller can effectively prevent the system from experiencing overpressure or underpressure, reducing the risk of leakage, explosion or other safety accidents caused by pressure runaway.

[0023] A further improvement of this invention is that a flow meter is also provided between the pressure reducing valve and the fuel cell.

[0024] With the above-mentioned further settings, you can try recording the flow rate of hydrogen to ensure that the hydrogen supply meets the needs of the fuel cell. This avoids the impact of too much or too little hydrogen on the performance, efficiency, or lifespan of the battery. It can also help detect abnormalities in the delivery pipeline, such as changes in hydrogen flow or leaks, thereby discovering system failures in advance and preventing damage to the fuel cell or abnormal operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model; Figure 2 This is a partial schematic diagram of a water electrolysis device according to a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the fuel cell and exhaust pipe in a specific embodiment of this utility model.

[0026] In the diagram, 11. Fuel cell; 111. Fan; 112. Exhaust pipe; 113. Solenoid valve; 12. Electrical appliance; 2. Water electrolysis device; 21. Water tank; 211. First outlet; 212. Water-oxygen recovery port; 22. Electrolyzer; 221. Inlet; 222. First hydrogen outlet; 223. Oxygen outlet; 23. Gas-liquid separator; 231. Hydrogen inlet; 232. Second hydrogen outlet; 233. Second outlet; 3. T-fitting; 4. Pipeline; 5. Pressure reducing valve; 6. Flow meter; 7. Filter; 8. Fuel cell controller; 9. Pressure gauge; 10. Pressure controller; 20. Four-way valve. Detailed Implementation

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

[0028] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] like Figure 1-3As shown, a hydrogen energy teaching and training device includes a fuel cell 11 and an electrical appliance 12 connected to the fuel cell 11. It also includes a water electrolysis device 2 for supplying hydrogen to the fuel cell 11. The water electrolysis device 2 includes a water tank 21, an electrolysis cell 22, and a gas-liquid separator 23. The water tank 21 has a first outlet 211, which is connected to the inlet 221 of the electrolysis cell 22. The electrolysis cell 22 has a first hydrogen outlet 222 and an oxygen outlet 223. The gas-liquid separator 23 has a hydrogen inlet 231, a second hydrogen outlet 232, and a second outlet 233. The first hydrogen outlet 222 is connected to the hydrogen inlet 231, and the second hydrogen outlet 232 is connected to the fuel cell 11 to deliver hydrogen to the fuel cell 11. Water from the water tank 21 enters the electrolysis cell 22, where it is decomposed into oxygen and hydrogen. The hydrogen is released from the first outlet 222 and then released into the water tank 22. Hydrogen gas flows out of outlet 222 and enters gas-liquid separator 23, while oxygen exits from outlet 23. Gas-liquid separator 23 separates the hydrogen from water, making the separated hydrogen dry and pure. This pure hydrogen then enters fuel cell 11 and undergoes an electrochemical reaction with oxygen to generate electricity, powering appliance 12, which can be a light bulb, motor, or charge the battery in the electrical box. When needed, electricity can be supplied to the grid via an inverter. Water separated by the gas-liquid separator can be discharged through a second outlet. This teaching and training equipment allows students to simultaneously learn the principles of water electrolysis and the electrochemical reaction of hydrogen and oxygen. Hydrogen production via water electrolysis is highly safe and demonstrates a complete closed loop from hydrogen production to application. It solves the safety hazards associated with existing technologies that use hydrogen cylinders and chemical reactions to produce hydrogen. The water tank 21 is also provided with a water-oxygen recovery port 212. The oxygen outlet 223 and the second water outlet 233 are both connected to the water-oxygen recovery port 212 to recover the water and oxygen in the electrolytic cell 22 and the water in the gas-liquid separator 23 into the water tank 21 to form a cycle and avoid waste. One water-oxygen recovery port or two water-oxygen recovery ports can be set. The height of the gas-liquid separator is higher than the height of the water tank. Specifically, the second water outlet can be higher than the water-oxygen recovery port so that the water flows from high to low and prevents the water from not being recovered into the water tank.

[0032] In the limited installation space, to avoid the installation container being too large, the gas-liquid separator 23 is set lower than the water tank 21. The second water outlet 233, oxygen outlet 223 and water-oxygen recovery port 212 are connected by a three-way pipe 3 to simultaneously recover the water and oxygen in the electrolytic cell 22 and the water vapor in the gas-liquid separator 23 into the water tank 21. Because the gas-liquid separator is set lower than the water tank, the water separated in the gas-liquid separator cannot be recovered into the water tank. Therefore, a three-way pipe is set to connect and merge the second water outlet and the oxygen outlet. By utilizing the surface tension of water, the water can climb or flow along the pipe wall, and the rising of oxygen bubbles can also push the water flow upward, thereby realizing the recovery of water and oxygen into the water tank for recycling, and preventing the water separated in the gas-liquid separator from not being able to return to the water tank.

[0033] All components are connected by pipes 4. Pipes 4 connected to the water-oxygen outlet of electrolytic cell 22, pipes 4 connected to the second water outlet 233 of gas-liquid separator 23, and pipes 4 connected to the water-oxygen recovery port 212 of water tank 21 are connected by a three-way valve. The water separated by gas-liquid separator 23 can be returned to water tank 21 for recovery by the oxygen flowing out of electrolytic cell 22. The second water outlet 233 of gas-liquid separator 23 is located below gas-liquid separator 23, and hydrogen inlet 231 and second hydrogen outlet 232 are located above gas-liquid separator 23. Hydrogen has a lower density than water vapor, so hydrogen will naturally rise and water vapor will sink, achieving separation of the two and preventing water vapor from entering hydrogen supply pipe 4, thereby ensuring the purity of hydrogen.

[0034] It also includes a fuel cell controller 8. The fuel cell 11 is equipped with a fan 111, which is connected to the fuel cell controller 8 and is turned on or off under the action of the fuel cell controller 8. When the temperature of the fuel cell 11 is too high, the fan 111 can be turned on by the fuel cell controller 8 to effectively cool it down. The fuel cell 11 is equipped with an exhaust pipe 112, and the exhaust pipe 112 is equipped with a solenoid valve 113 connected to the fuel cell controller 8 to control the opening or closing of the solenoid valve 113. The fuel cell controller 8 controls the operation of the solenoid valve 113 to discharge the exhaust gas inside the fuel cell 11.

[0035] It also includes a pressure reducing valve 5, which is located between the second hydrogen outlet 232 and the fuel cell 11. When hydrogen is output from the gas-liquid separator 23, it is under high pressure. The pressure reducing valve 5 can reduce the pressure of the hydrogen to the working pressure required by the fuel cell 11, avoiding damage to the system or affecting the normal operation of the fuel cell 11 due to excessive pressure, and effectively preventing overpressure, reducing the risk of explosion or leakage, thereby improving the safety of the system. A flow meter 6 is also provided between the pressure reducing valve 5 and the fuel cell 11 to record the flow rate of hydrogen, ensuring that the hydrogen supply meets the needs of the fuel cell 11, avoiding the impact of too much or too little hydrogen on the performance, efficiency or life of the battery, and helping to detect abnormalities in the delivery pipeline, such as changes in hydrogen flow or leakage, thereby discovering system failures in advance and preventing damage to the fuel cell 11 or abnormal operation.

[0036] It also includes a filter 7, which is located between the first outlet 211 of the water tank 21 and the inlet 221 of the electrolytic cell 22. The water in the water tank 21 is first filtered by the filter 7 to remove impurities before entering the electrolytic cell 22, making the water entering the electrolytic cell 22 purer. This helps to increase the production and purity of hydrogen and oxygen, while also reducing the accumulation of pollutants in the water electrolytic cell 22 and preventing sediment or impurities from accumulating in the electrolytic cell 22, thereby affecting the performance of water electrolysis and hydrogen production efficiency. The filter is a resin filter.

[0037] It also includes a pressure gauge 9 and a pressure controller 10. The second hydrogen outlet 232, pressure gauge 9, pressure controller 10 and pressure reducing valve 5 are connected by a four-way valve 20. Pipes 4 are connected to the second hydrogen outlet 232, pressure gauge 9, pressure controller 10 and pressure reducing valve 5. The four-way valve 20 is connected between the pipes 4. The pressure gauge 9 can display the current pressure value in real time and detect whether the pressure is within the safe and preset working range in a timely manner, so as to avoid affecting the performance of the fuel cell 11 due to improper pressure. The pressure controller 10 can adjust the hydrogen pressure to ensure that the hydrogen entering the fuel cell 11 is kept within the appropriate working pressure range. By accurately controlling the gas pressure, it prevents the impact on the operating efficiency and life of the fuel cell 11. The combined use of pressure gauge 9 and pressure controller 10 can effectively prevent the system from overpressure or underpressure, and reduce the risk of leakage, explosion or other safety accidents caused by pressure runaway.

Claims

1. A hydrogen energy teaching and training device, comprising a fuel cell (11) and an electrical appliance (12) connected to the fuel cell (11), characterized in that, It also includes a water electrolysis device (2) for supplying hydrogen to the fuel cell (11). The water electrolysis device (2) includes a water tank (21), an electrolysis cell (22), and a gas-liquid separator (23). The water tank (21) is provided with a first water outlet (211). The first water outlet (211) of the water tank (21) is connected to the water inlet (221) of the electrolysis cell (22). The electrolysis cell (22) is provided with a first hydrogen outlet (222) and an oxygen outlet (223). The gas-liquid separator (23) is provided with a hydrogen inlet (231), a second hydrogen outlet (232), and a second water outlet (233). The first hydrogen outlet (222) is connected to the hydrogen inlet (231), and the second hydrogen outlet (232) is connected to the fuel cell (11) to deliver hydrogen to the fuel cell (11).

2. The hydrogen energy teaching and training equipment according to claim 1, characterized in that, The water tank is also provided with a water-oxygen recovery port (212), and the oxygen outlet (223) and the second water outlet (233) are connected to the water-oxygen recovery port (212) to recover oxygen and water into the water tank (21).

3. The hydrogen energy teaching and training equipment according to claim 2, characterized in that, The gas-liquid separator (23) is set below the water tank (21). The second water outlet (233), oxygen outlet (223) and water-oxygen recovery port (212) are connected by a three-way pipe fitting (3) so as to simultaneously recover the water and oxygen in the electrolytic cell (22) and the water in the gas-liquid separator (23) into the water tank (21).

4. The hydrogen energy teaching and training equipment according to claim 1, 2, or 3, characterized in that, It also includes a fuel cell controller (8), on which a fan (111) is provided. The fan (111) is connected to the fuel cell controller (8) and is turned on or off under the action of the fuel cell controller (8).

5. The hydrogen energy teaching and training equipment according to claim 4, characterized in that, The fuel cell (11) is provided with an exhaust pipe (112), and the exhaust pipe (112) is provided with a solenoid valve (113) connected to the fuel cell controller (8) to control the solenoid valve (113) to open or close.

6. The hydrogen energy teaching and training equipment according to claim 1, 2, or 3, characterized in that, It also includes a pressure reducing valve (5), which is located between the second hydrogen outlet (232) and the fuel cell (11).

7. The hydrogen energy teaching and training equipment according to claim 1, 2, or 3, characterized in that, It also includes a filter (7), which is located between the first outlet (211) of the water tank (21) and the inlet (221) of the electrolytic cell (22).

8. The hydrogen energy teaching and training equipment according to claim 6, characterized in that, It also includes a pressure gauge (9) and a pressure controller (10), and the second hydrogen outlet (232), pressure gauge (9), pressure controller (10) and pressure reducing valve (5) are connected by a four-way valve (20).

9. The hydrogen energy teaching and training equipment according to claim 6, characterized in that, A flow meter (6) is also provided between the pressure reducing valve (5) and the fuel cell (11).

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