AEM hydrogen production test bench assembly

Abstract

This utility model relates to the field of processing and manufacturing technology, and discloses an AEM hydrogen production test bench assembly, including a test bench body. A cover plate is provided on the top of the test bench body. A voltage and current regulating power supply is provided at the front bottom of the test bench body, and an AEM stack to be tested is installed above the voltage and current regulating power supply. A debugging screen is provided at the front end of the test bench body below the cover plate, and an emergency stop switch is provided below the debugging screen. A hydrogen back pressure valve is provided below the emergency stop switch. An alkali tank is installed inside the test bench body, and a metering pump is installed at the rear end of the alkali tank. This utility model integrates the components into one unit, enabling testing and verification of key performance indicators of AEM electrolyzers, such as electrolysis efficiency, energy consumption, gas production quality, polarization curve, durability, and sensitivity. It also features an internal hydrogen leakage sensor and dedicated ventilation openings, making it a highly intelligent test bench that ensures safety during the testing process.

Description

Technical Field

[0001] This utility model relates to the field of processing and manufacturing technology, specifically to an AEM hydrogen production test bench assembly. Background Technology

[0002] The AEM hydrogen production test bench assembly is an instrument used to test relevant parameters and performance of the anion exchange membrane water electrolysis hydrogen production process. Its main functions include parameter monitoring and control, data processing and analysis, and diverse testing capabilities. This AEM hydrogen production test bench assembly is widely used in the research and optimization of AEM water electrolysis hydrogen production technology, helping researchers understand the performance of the electrolyzer, optimize design parameters, and evaluate material durability. Through these tests, the efficiency and reliability of AEM hydrogen production technology can be further improved, promoting its application and development in the hydrogen energy field.

[0003] However, in the existing technology, experimental benches are used in the AEM stack testing process. The integration and intelligence are not high, and the safety factor is not high. At the same time, the testing efficiency and accuracy are not ideal when tested manually, which brings inconvenience to the user. Therefore, there is an urgent need for an AEM hydrogen production test bench assembly to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an AEM hydrogen production test bench assembly to solve the problems mentioned in the background art, which all use experimental benches, have low integration and intelligence, low safety factor, and unsatisfactory testing efficiency and accuracy under manual testing conditions.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An AEM hydrogen production test bench assembly includes a test bench body. A cover plate is provided on the top of the test bench body. A voltage and current regulating power supply is located at the front bottom of the test bench body, and an AEM stack under test is installed above the voltage and current regulating power supply. A debugging screen is located below the cover plate at the front end of the test bench body, and an emergency stop switch is located below the debugging screen. A hydrogen back pressure valve is located below the emergency stop switch. An alkali tank is installed inside the test bench body, and a metering pump is installed at the rear end of the alkali tank. A first temperature and pressure sensor integrated module and a second temperature and pressure sensor integrated module are installed on the lower left and right sides of the alkali tank. The metering pump is connected to the first temperature and pressure sensor integrated module via a liquid flow meter. A gas humidity sensor is located on the upper right side of the alkali tank, and one end of the gas humidity sensor is connected to the gas flow meter.

[0007] Preferably, one side of the hydrogen back pressure valve is provided with various interfaces for connecting the fuel cell stack under test, and the various interfaces for connecting the fuel cell stack under test consist of a power indicator light, a fuel cell stack temperature probe, a fuel cell stack heating interface, an adjustable power interface, an alkali outlet, and an alkali inlet.

[0008] Preferably, the bottom of the test platform body is provided with casters, and the number of casters is four sets.

[0009] Preferably, a hydrogen gas alarm is provided above the top of the cover plate, and an equipment ventilation port is installed on the hydrogen gas alarm.

[0010] Preferably, an oxygen discharge port is provided on one side of the top of the test bench body at the rear end of the cover plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model relates to an AEM hydrogen production test bench assembly. By setting up a debugging screen, a gas humidity sensor, and an integrated module for temperature and pressure sensors, the test bench can monitor various parameters of the electrolyzer during operation in real time, such as water temperature, pressure, flow rate, voltage, and current, and perform data acquisition and storage.

[0013] This utility model discloses an AEM hydrogen production test bench assembly. By integrating the components into one unit and having a dedicated ventilation port, the test bench has a high degree of intelligence, enabling it to complete the testing of AEM fuel cell stacks faster, safer, and more efficiently. At the same time, it is equipped with a hydrogen leakage sensor to ensure safety during the testing process.

[0014] This utility model relates to an AEM hydrogen production test bench assembly, which has both automatic and manual testing functions, thereby reducing manual operation and improving testing efficiency and accuracy. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a left-side internal view of the overall structure of this utility model;

[0018] Figure 3 This is a right-side internal view of the overall structure of this utility model;

[0019] Figure 4 This is a front view of the overall structure of this utility model;

[0020] Figure 5 This is a right view of the overall structure of this utility model;

[0021] Figure 6 This is a left view of the overall structure of this utility model.

[0022] In the diagram: 1. AEM stack under test; 2. Oxygen vent; 3. Equipment vent; 4. Debugging panel; 5. First temperature and pressure sensor integrated module; 6. Regulating power supply; 7. Liquid flow meter; 8. Metering pump; 9. Alkali tank; 10. Emergency stop switch; 11. Hydrogen back pressure valve; 12. Alkali inlet; 13. Alkali outlet; 14. Hydrogen alarm; 15. Gas humidity sensor; 16. Gas flow meter; 17. Second temperature and pressure sensor integrated module; 18. Test bench body; 19. Cover plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present patent. In order to better illustrate the specific implementation of the present utility model, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size.

[0024] Please see Figure 1-6 An AEM hydrogen production test bench assembly includes a test bench body 18, a cover plate 19 on the top of the test bench body 18, a voltage and current regulating power supply 6 at the bottom front end of the test bench body 18, and an AEM stack 1 under test mounted above the voltage and current regulating power supply 6. A debugging screen 4 is located below the cover plate 19 at the front end of the test bench body 18, an emergency stop switch 10 is located below the debugging screen 4, and a hydrogen back pressure valve 11 is located below the emergency stop switch 10. An alkali tank 9 is installed inside the test bench body 18, and a metering pump 8 is installed at the rear end of the alkali tank 9. A first temperature and pressure sensor integrated module 5 and a second temperature and pressure sensor integrated module 17 are installed on the left and right sides below the alkali tank 9, and the metering pump 8 is connected to the first temperature and pressure sensor integrated module 5 via a liquid flow meter 7. A gas humidity sensor 15 is located on the upper right side of the alkali tank 9, and one end of the gas humidity sensor 15 is connected to a gas flow meter 16.

[0025] The hydrogen back pressure valve 11 has various interfaces for connecting the fuel cell stack under test on one side. These interfaces consist of a power indicator light, a fuel cell stack temperature probe, a fuel cell stack heating interface, an adjustable power interface, an alkali outlet 12, and an alkali inlet 14.

[0026] The test platform body 18 has four sets of casters at its bottom.

[0027] A hydrogen gas alarm 14 is provided on the top of the cover plate 19, and an equipment ventilation port 3 is installed on the hydrogen gas alarm 14.

[0028] Among them, an oxygen discharge port 2 is provided on one side of the top of the test platform body 18 at the rear end of the cover plate 19.

[0029] In this invention, when the hydrogen production performance of the AEM stack needs to be tested, the voltage and current required for the AEM stack 1 under test are first provided by the voltage and current regulating power supply 6. The stack undergoes water electrolysis under the action of electrical energy. During the electrolysis reaction, a DC voltage is applied at both ends of the anode and cathode of the electrolyzer to drive the water molecules to undergo an electrochemical reaction. The water molecules permeate through the AEM membrane on the anode side to the cathode side. Then, under the action of the catalyst, the water molecules receive electrons to generate hydrogen and hydroxide ions (OH⁻). The hydroxide ions (OH⁻) are transported to the anode side through the anion exchange membrane (AEM). Under the action of the catalyst, the hydroxide ions release electrons to generate oxygen and water, thereby producing hydrogen and oxygen.

[0030] The voltage and current regulating power supply 6 at the bottom front end of the test bench body 18 is used to accurately adjust and stabilize the input electrical parameters of the fuel cell stack. The AEM fuel cell stack 1 under test is located above it. The various operating parameters of the AEM fuel cell stack 1 under test are displayed and adjusted in real time through the debugging screen 4 located under the front cover of the test bench. To ensure test safety, an emergency stop switch 10 is set below the debugging screen, which can quickly cut off the power supply and system operation in case of abnormality.

[0031] The alkali solution required for the hydrogen production process is supplied by an alkali solution tank 9 installed inside the test bench. The alkali solution 9 is quantitatively output by a metering pump 8 connected to the rear end. The output end of the metering pump 8 is connected to a liquid flow meter 7, and further connected to a first temperature and pressure sensor integrated module 5 to monitor the flow rate, temperature and pressure parameters of the alkali solution flowing through the stack in real time. The second temperature and pressure sensor integrated module 17 is used to detect the operating status on the other side of the alkali solution tank, realizing dual-sided monitoring to ensure the stability and safety of alkali solution delivery. At the same time, it can simulate different working conditions, such as different temperature, pressure and flow conditions, to evaluate the performance of the electrolyzer under various operating conditions.

[0032] After the alkali solution participates in the electrolysis reaction in the fuel cell stack, it is discharged from the alkali solution outlet 12 and can be recycled back to the alkali solution tank 9 or discharged externally. The hydrogen gas generated by the fuel cell stack is discharged from the system after the pressure is regulated by the hydrogen back pressure valve 11. The hydrogen back pressure valve 11 is located at the front end of the test bench body 18 for easy manual adjustment. It is also equipped with various interfaces for connecting the fuel cell stack, such as power indicator lights, fuel cell stack temperature probes, fuel cell stack heating interfaces, adjustable power interfaces, alkali solution inlet 12, and alkali solution outlet 13, which facilitates testing and maintenance. At the same time, the test bench has both automatic and manual testing functions, reducing manual operation and improving testing efficiency and accuracy.

[0033] To enhance the safety and accuracy of the operating environment, a hydrogen alarm 14 is installed on the top of the test bench and connected to the equipment ventilation port 3. If the hydrogen concentration exceeds the limit, the ventilation system will be triggered to quickly exhaust air, preventing the risk of explosion. Simultaneously, oxygen, as a byproduct, is discharged from the oxygen exhaust port 2 at the rear of the cover plate, ensuring internal pressure balance within the system. This achieves safe, efficient, and adjustable testing functions for hydrogen production from the AEM fuel cell stack. Content not described in detail in this specification constitutes prior art known to those skilled in the art.

[0034] 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 AEM hydrogen production test bench assembly, comprising a test bench body (18), characterized in that: The test bench body (18) is topped with a cover plate (19). A voltage and current regulating power supply (6) is located at the bottom front end of the test bench body (18), and an AEM stack (1) under test is installed above the voltage and current regulating power supply (6). A debugging screen (4) is located below the cover plate (19) at the front end of the test bench body (18), and an emergency stop switch (10) is located below the debugging screen (4). A hydrogen back pressure valve (11) is located below the emergency stop switch (10). The test bench body (18) is internally equipped with... There is an alkali tank (9), and a metering pump (8) is installed at the rear end of the alkali tank (9). A first temperature and pressure sensor integrated module (5) and a second temperature and pressure sensor integrated module (17) are installed on the lower left and right sides of the alkali tank (9). The metering pump (8) is connected to the first temperature and pressure sensor integrated module (5) through a liquid flow meter (7). A gas humidity sensor (15) is set on the upper right side of the alkali tank (9), and one end of the gas humidity sensor (15) is connected to a gas flow meter (16).

2. The assembly of an AEM hydrogen production test bench according to claim 1, characterized in that: The hydrogen back pressure valve (11) has various interfaces for connecting the test stack on one side, and the various interfaces for connecting the test stack consist of a power indicator light, a stack temperature probe, a stack heating interface, an adjustable power interface, an alkali inlet (12), and an alkali outlet (13).

3. The assembly of an AEM hydrogen production test bench according to claim 1, characterized in that: The bottom of the test bench body (18) is equipped with casters, and the number of casters is four sets.

4. The assembly of an AEM hydrogen production test bench according to claim 1, characterized in that: A hydrogen alarm (14) is provided above the top of the cover plate (19), and an equipment vent (3) is installed on the hydrogen alarm (14).

5. The assembly of an AEM hydrogen production test bench according to claim 1, characterized in that: An oxygen outlet (2) is provided on one side of the top of the test bench body (18) at the rear end of the cover plate (19).

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