Hydrogen fuel cell power system teaching rack for demonstration

Abstract

The invention discloses a hydrogen fuel cell power system teaching rack for demonstration, which relates to the field of fuel cell testing and comprises a fuel cell stack, an air intake system, a hydrogen intake and exhaust system, a cooling system and a data acquisition and control system. According to the hydrogen fuel cell power system teaching rack, parameters of a fuel cell system are collected and displayed through the data collection and control system, the voltage value and the current value output by a fuel cell during working can be monitored in real time, all signal parameters can be displayed in real time, and curve recording can be carried out; the hydrogen fuel cell power system teaching bench facilitates demonstration teaching of fuel cell system courses for college students, enables effects of a plurality of systems to be better displayed, can perform demonstration through the teaching bench, facilitates hydrogen fuel cell power system teaching, facilitates field simulation teaching, and is good in application prospect. Students can easily understand and participate in teaching experiments, and the teaching quality is improved in multiple aspects.

Description

Technical Field

[0001] The invention relates to the technical field of fuel cell testing, in particular to a hydrogen fuel cell power system teaching stand for demonstration. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. Its basic principle is the reverse reaction of water electrolysis. Hydrogen and oxygen are supplied to the anode and cathode respectively. After hydrogen diffuses outward through the anode and reacts with the electrolyte, it releases electrons and reaches the cathode through an external load. Hydrogen fuel cells convert chemical energy into electrical energy, have a high energy conversion rate, high energy storage per unit volume, and are environmentally friendly.

[0003] Nowadays, patents related to hydrogen fuel cell test benches are all researched in the direction of test benches. For example, CN209675411U provides a fuel cell test bench that can measure various flow data of hydrogen systems and air systems; CN206058701U detects voltage and current through power switches and electric meters, which is more intuitive, but simpler, and some system effects cannot be fully displayed; but as various universities have successively launched fuel cell system courses, it is impossible to explain only from a theoretical aspect, so a hydrogen fuel cell power system teaching bench for demonstration is needed. On the one hand, it is convenient for on-site simulation teaching, and on the other hand, students can more easily understand and participate in teaching experiments, thereby improving the teaching quality in many aspects. Summary of the invention

[0004] The purpose of the present invention is to provide a hydrogen fuel cell power system teaching bench for demonstration, so as to solve the problem that the traditional fuel cell test bench proposed in the above background technology is relatively intuitive but simple, and some system effects cannot be fully displayed. As various colleges and universities have successively launched fuel cell system courses, it is impossible to explain them only from a theoretical aspect. In the present invention, the teaching bench collects and displays the parameters of the fuel cell system through a data acquisition and control system, and can monitor the voltage value and current value of the working output of the fuel cell in real time, and can display each signal parameter in real time and record the curve. Through the hydrogen fuel cell power system teaching bench, it is convenient to demonstrate the fuel cell system course for college students, so that multiple system effects can be better displayed, and can be demonstrated through the teaching bench, thereby facilitating the teaching of hydrogen fuel cell power system, facilitating on-site simulation teaching, and having good application prospects. Students can more easily understand and participate in teaching experiments, and improve the teaching quality in many aspects.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydrogen fuel cell power system teaching platform for demonstration, comprising a fuel cell stack, an air intake system, a hydrogen intake and exhaust system, a cooling system and a data acquisition and control system;

[0006] The fuel cell stack is mainly used by converting the chemical energy of the reaction between hydrogen and air into electrical energy. The hydrogen and air entering the fuel cell stack need to pay attention to their pressure, temperature, humidity, flow rate and other parameters to avoid damage to the fuel cell stack;

[0007] The air intake system mainly includes an air compressor, a pressure reducing valve, a dryer, a solenoid valve, a flow meter, a humidifier and an integrated sensor;

[0008] The hydrogen intake and exhaust system mainly includes a hydrogen tank, a pressure reducing valve, a solenoid valve, a flow meter and an integrated sensor. After the air and hydrogen are fully reacted, the remaining hydrogen passes through the hydrogen exhaust device and is discharged through the hydrogen-water separator and the back pressure control valve;

[0009] The cooling system is used to cool the fuel cell stack;

[0010] The data acquisition and control system is mainly used to monitor the entire fuel cell system and collect and control various parameters in real time.

[0011] Preferably, the air compressor is used to deliver air to the inlet of the fuel cell stack, and the pressure reducing valve is used to reduce the gas pressure.

[0012] Preferably, the flow meter is used to detect the air flow entering the fuel cell stack, the humidifier is arranged between the air compressor and the cathode inlet of the fuel cell stack, and the humidifier is used to humidify the cathode inlet air entering the fuel cell stack.

[0013] Preferably, the hydrogen tank is used to store hydrogen, and the integrated sensor is used to detect the pressure, temperature and humidity of the hydrogen.

[0014] Preferably, the cooling system comprises a deionized water storage tank, a heat exchanger and an integrated sensor, wherein the heat exchanger is used to cool the cooling water.

[0015] Preferably, the data acquisition and control system includes an industrial computer, a signal receiving unit and a CAN communication module;

[0016] In addition to processing parameters, collecting signals, and recording curves for the test system, the industrial computer also controls the start and stop of the laboratory system, the switch of the solenoid valve, and the laboratory safety settings;

[0017] The signal receiving unit is used to receive signals from relevant sensors and flow meters.

[0018] Preferably, it also includes a hydrogen fuel cell training stand, a high-voltage circuit breaker, an operation panel and a display panel, and one end of the hydrogen fuel cell training stand is fixedly installed with the bottom end of the high-voltage circuit breaker.

[0019] Preferably, one end of the hydrogen fuel cell training stand is fixedly mounted to both ends of an operation panel, and one end of the operation panel is fixedly connected to one end of a display panel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the hydrogen fuel cell power system teaching bench collects and displays the parameters of the fuel cell system through the data acquisition and control system, can monitor the voltage value and current value of the fuel cell working output in real time, can display various signal parameters in real time and record curves; the hydrogen fuel cell power system teaching bench has a simple structure, good versatility, short test time, and is easy to implement. Through the hydrogen fuel cell power system teaching bench, it is convenient to demonstrate the fuel cell system course for college students, so that the effects of multiple systems can be better displayed, which can be explained from the theoretical aspect and can also be demonstrated through the teaching bench, thereby facilitating the teaching of hydrogen fuel cell power system, facilitating on-site simulation teaching, and having good application prospects. Students can more easily understand and participate in teaching experiments, thereby improving the teaching quality in many aspects.

[0022] 2. In the present invention, the appearance design of the teaching bench is ergonomic. When arranging the components of the training bench, attention is paid to the operational convenience of the training bench. The design of the training bench is highly universal and the operating panel and the main operating control components are relatively concentrated, which is convenient for teaching or training. The appearance design style is unified, and the bench adopts environmentally friendly green brackets, white panels, consistent bench safety protection, etc. The design functions are constantly improved. With the continuous improvement of the training bench, the training bench can realize the detection of various systems and sensors, and display their status and functions on the instrument.

[0023] 3. In the present invention, the teaching stand adopts new materials such as aluminum profiles. The manufacturing process is environmentally friendly and does not generate air pollution. The stand is light and more compact. It is easy to process and maintain, with reduced processing hours. The stand is easy to support, connect, and install. When there is a problem with the stand support, it can be quickly repaired. It has beautiful appearance, and there are many variations in the processing of aluminum profiles, so the stand produced is more beautiful and practical. It has good durability, and the aluminum profile is used to make the training stand bracket. Because of the convenient connection, the stand support is generally more reliable and durable. After several years of use, the new material has a higher recycling value after use, unlike the extremely low recycling price of iron materials in the past. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a hydrogen fuel cell power system teaching stand for demonstration in the present invention;

[0025] Figure 2A fuel cell system bench test system diagram of a hydrogen fuel cell power system teaching bench for demonstration of the present invention;

[0026] Figure 3 This is a data acquisition and control system diagram of a hydrogen fuel cell power system teaching stand for demonstration of the present invention;

[0027] Figure 4 The present invention is a start-stop flow chart of a fuel cell system bench experiment of a hydrogen fuel cell power system teaching bench for demonstration.

[0028] In the figure: 1. Fuel cell stack; 2. Air intake system; 3. Hydrogen intake and exhaust system; 4. Cooling system; 5. Data acquisition and control system; 51. Industrial computer; 52. Signal receiving unit; 53. CAN communication module; 6. Hydrogen fuel cell training bench; 7. High-voltage circuit breaker; 8. Operation panel; 9. Display board. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] Reference Figure 1-4 As shown: a hydrogen fuel cell power system teaching stand for demonstration, comprising a fuel cell stack 1, an air intake system 2, a hydrogen intake and exhaust system 3, a cooling system 4 and a data acquisition and control system 5;

[0032] The fuel cell stack 1 mainly converts the chemical energy of the reaction between hydrogen and air into electrical energy for use. The hydrogen and air entering the fuel cell stack 1 need to pay attention to their pressure, temperature, humidity, flow rate and other parameters to avoid damage to the fuel cell stack;

[0033] The air intake system 2 mainly includes an air compressor, a pressure reducing valve, a dryer, a solenoid valve, a flow meter, a humidifier and an integrated sensor. The air compressor is used to deliver air to the inlet of the fuel cell stack 1. The pressure reducing valve is used to reduce the gas pressure. The flow meter is used to detect the air flow entering the fuel cell stack 1. The humidifier is arranged between the air compressor and the cathode inlet of the fuel cell stack 1, and the humidifier is used to humidify the air entering the cathode inlet of the fuel cell stack 1.

[0034] The hydrogen intake and exhaust system 3 mainly includes a hydrogen tank, a pressure reducing valve, a solenoid valve, a flow meter and an integrated sensor. After the air and hydrogen are fully reacted, the remaining hydrogen passes through the hydrogen exhaust device, the hydrogen-water separator and the back pressure control valve. The hydrogen tank is used to store hydrogen, and the integrated sensor is used to detect the pressure, temperature and humidity of hydrogen;

[0035] The cooling system 4 is used to cool the fuel cell stack 1. The cooling system 4 includes a deionized water storage tank, a heat exchanger and an integrated sensor. The heat exchanger is used to cool the cooling water.

[0036] The data acquisition and control system 5 is mainly used to monitor the entire fuel cell system, collect and control various parameters in real time. The data acquisition and control system 5 includes an industrial computer 51, a signal receiving unit 52 and a CAN communication module 53. In addition to parameter processing, signal acquisition and curve recording of the test system, the industrial computer 51 also controls the start and stop of the laboratory system, the solenoid valve switch and the laboratory safety settings; the signal receiving unit 52 is used to receive signals from related sensors and flow meters. The signal receiving unit 52 is used to receive signals from H2 inlet integrated sensors, H2 inlet flow meters, O2 inlet integrated sensors, O2 inlet flow meters, H2 / O2 outlet temperatures, cooling water inlet and outlet temperatures, cooling water conductivity and flow, and hydrogen concentration sensors. The hydrogen fuel cell power system teaching rig collects and displays the parameters of the fuel cell system through the data acquisition and control system 5, can monitor the voltage and current values ​​of the fuel cell working output in real time, can display various signal parameters in real time and record curves.

[0037] according to Figure 1As shown, it also includes a hydrogen fuel cell training stand 6, a high-voltage circuit breaker 7, an operation panel 8 and a display panel 9. One end of the hydrogen fuel cell training stand 6 is fixedly installed with the bottom end of the high-voltage circuit breaker 7, one end of the hydrogen fuel cell training stand 6 is fixedly installed with both ends of the operation panel 8, and one end of the operation panel 8 is fixedly connected with one end of the display panel 9. The high-voltage circuit breaker 7 can protect the hydrogen fuel cell training stand 6, disconnect when the current is too large, protect various electrical components, and ensure on-site teaching simulation. Through the hydrogen fuel cell power system teaching stand, it is convenient to demonstrate and teach the fuel cell system course for college students, and it is convenient to teach the hydrogen fuel cell power system, which is convenient for on-site The simulation teaching has good application prospects, and students can understand and participate in the teaching experiments more easily. The bracket in the present invention adopts new materials such as aluminum profiles. Compared with the previous bench manufacturing materials, the new aluminum profile material is selected. The manufacturing process is environmentally friendly and does not produce air pollution. The bench is light and more compact. It is easy to process and maintain, and only basic tools and accessories need to be prepared, and the processing time is reduced. The bench is easy to support, connect and install. The bench adopts environmentally friendly green brackets, white panels, and consistent bench safety protection. The design function is constantly improved. With the continuous improvement of the training bench, the training bench can realize the detection of various systems and sensors, and display their status and functions on the instrument.

[0038] The method of use and working principle of the device: A hydrogen fuel cell power system teaching bench for demonstration mainly includes a fuel cell system and a hydrogen fuel cell power system teaching bench to which it can be attached; the fuel cell system includes a fuel cell stack 1, an air intake system 2, a hydrogen intake and exhaust system 3, a cooling system 4 and a data acquisition and control system 5, wherein the fuel cell stack 1 is mainly used by converting the chemical energy of the reaction of hydrogen and air into electrical energy, and the hydrogen and air entering the fuel cell stack 1 need to pay attention to their pressure, temperature, humidity, flow and other parameters to avoid damage to the fuel cell stack 1; the air intake system 2 mainly includes an air compressor, a pressure reducing valve, a dryer, a solenoid valve, a flow meter, a humidifier and a collector The hydrogen intake system 3 mainly includes a hydrogen tank, a pressure reducing valve, a solenoid valve, a flow meter and an integrated sensor. After the air and hydrogen are fully reacted, the remaining hydrogen passes through the hydrogen exhaust device and is discharged through the hydrogen-water separator and the back pressure control valve. The cooling system 4 mainly includes a deionized water storage tank, a heat exchanger, an integrated sensor, etc. The data acquisition and control system 5 is mainly to complete the monitoring of the entire fuel cell system, and to collect and control various parameters in real time. It mainly includes an industrial computer 51, a signal receiving unit 52 and a CAN communication module 53. In addition to processing parameters, collecting signals and recording curves for the test system, the industrial computer 51 also controls the start and stop of the laboratory system, the switch of the solenoid valve and the laboratory safety settings.

[0039] The hydrogen fuel cell power system teaching bench is mainly composed of a hydrogen fuel cell training bench 6, a high-voltage circuit breaker 7, an operation panel 8 and a display panel 9. The hydrogen fuel cell training bench 6 is equipped with a high-voltage circuit breaker 7. The high-voltage circuit breaker 7 can protect the hydrogen fuel cell training bench 6, disconnect when the current is too large, protect various electrical components, and ensure on-site teaching simulation. The hydrogen fuel cell power system teaching bench collects and displays the parameters of the fuel cell system through a data acquisition and control system 5, and can monitor the voltage value and current value of the fuel cell working output in real time, and can display various signal parameters in real time and record curves; the hydrogen fuel cell power system teaching bench has a simple structure, good versatility, short test time, and is easy to implement. Through the hydrogen fuel cell power system teaching bench, it is convenient to demonstrate the fuel cell system course for college students, so that the effects of multiple systems can be better displayed, which can be explained from a theoretical perspective or demonstrated through the teaching bench, thereby facilitating the teaching of hydrogen fuel cell power systems, facilitating on-site simulation teaching, and having good application prospects. Students can more easily understand and participate in teaching experiments, and improve the teaching quality in many ways;

[0040] The teaching bench has the following aspects in terms of appearance and function: the appearance design is ergonomic, and when arranging the training bench components, the training bench is easy to operate. The training bench design is highly universal and the operation panel 8 and the main operation control components are relatively concentrated, which is convenient for teaching or training; the appearance design style is unified, and the bench adopts environmentally friendly green brackets, white panels, and consistent bench safety protection; the design function is constantly improved. With the continuous improvement of the training bench, the training bench can realize the detection of various systems and sensors, and display their status and functions on the instrument;

[0041] The teaching bench has the following aspects in terms of manufacturing process and material selection: traditional bench brackets are generally made of iron pipes and angle iron materials, which require welding and painting. The manufacturing process of the bench brackets is long, the process is not environmentally friendly, and the bench is large and bulky. The brackets in the present invention use new materials such as aluminum profiles. Compared with the previous bench manufacturing materials, new aluminum profile materials are selected, the manufacturing process is environmentally friendly, does not generate air pollution, the bench is light and has a more compact size; it is easy to process and maintain, only basic tools and accessories need to be prepared, the processing time is reduced, and the bench support, connection, and installation are convenient; when there is a problem with the bench support, it can be quickly repaired; it has beautiful appearance, and there are many variations in the processing of aluminum profiles, so the bench produced is more beautiful and practical; it has good durability, and the training bench brackets are made of aluminum profiles. Because of the convenient connection, the general bench supports are relatively reliable and durable; and after several years of use, the new materials have a higher recycling value after use, unlike the past when the recycling price of iron materials was extremely low.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen fuel cell power system teaching platform for demonstration, characterized in that: It comprises a fuel cell stack (1), an air intake system (2), a hydrogen intake and exhaust system (3), a cooling system (4) and a data acquisition and control system (5); The fuel cell stack (1) is mainly used by converting chemical energy of the reaction between hydrogen and air into electrical energy. The hydrogen and air entering the fuel cell stack (1) need to pay attention to their pressure, temperature, humidity, flow rate and other parameters to avoid damage to the fuel cell stack. The air intake system (2) mainly includes an air compressor, a pressure reducing valve, a dryer, a solenoid valve, a flow meter, a humidifier and an integrated sensor; The hydrogen intake and exhaust system (3) mainly includes a hydrogen tank, a pressure reducing valve, a solenoid valve, a flow meter and an integrated sensor. After the air and hydrogen are fully reacted, the remaining hydrogen passes through the hydrogen exhaust device and is discharged through the hydrogen-water separator and the back pressure control valve; The cooling system (4) is used to cool the fuel cell stack (1); The data acquisition and control system (5) is mainly used to monitor the entire fuel cell system and to collect and control various parameters in real time.

2. A hydrogen fuel cell power system teaching stand for demonstration according to claim 1, characterized in that: The air compressor is used to deliver air to the inlet of the fuel cell stack (1), and the pressure reducing valve is used to reduce the gas pressure.

3. The hydrogen fuel cell power system teaching stand for demonstration according to claim 1, characterized in that: The flow meter is used to detect the air flow entering the fuel cell stack (1); the humidifier is arranged between the air compressor and the cathode inlet of the fuel cell stack (1); and the humidifier is used to humidify the cathode inlet air entering the fuel cell stack (1).

4. The hydrogen fuel cell power system teaching stand for demonstration according to claim 1, characterized in that: The hydrogen tank is used to store hydrogen, and the integrated sensor is used to detect the pressure, temperature and humidity of the hydrogen.

5. The hydrogen fuel cell power system teaching stand for demonstration according to claim 1, characterized in that: The cooling system (4) comprises a deionized water storage tank, a heat exchanger and an integrated sensor, wherein the heat exchanger is used to cool the cooling water.

6. The hydrogen fuel cell power system teaching stand for demonstration according to claim 1, characterized in that: The data acquisition and control system (5) comprises an industrial computer (51), a signal receiving unit (52) and a CAN communication module (53); The industrial control computer (51) not only processes parameters, collects signals and records curves of the test system, but also controls the start and stop of the laboratory system, the switch of the solenoid valve and the safety settings of the laboratory; The signal receiving unit (52) is used to receive signals from relevant sensors and flow meters.

7. A hydrogen fuel cell power system teaching stand for demonstration according to claim 1, characterized in that: It also includes a hydrogen fuel cell training stand (6), a high-voltage circuit breaker (7), an operation panel (8) and a display panel (9), wherein one end of the hydrogen fuel cell training stand (6) is fixedly mounted to the bottom end of the high-voltage circuit breaker (7).

8. The hydrogen fuel cell power system teaching stand for demonstration according to claim 7, characterized in that: One end of the hydrogen fuel cell training stand (6) is fixedly mounted to both ends of the operating panel (8), and one end of the operating panel (8) is fixedly connected to one end of the display panel (9).

Images