Hydrogen fuel cell testing and evaluating device

Abstract

The utility model relates to a hydrogen fuel cell testing and evaluating device which comprises a base, a testing box is arranged on the top face of the base, a fixing seat is arranged in the testing box, the fixing seat is cylindrical, a plurality of installation stations are arranged in the fixing seat, and a heating assembly and a pressurizing assembly are further arranged in the fixing seat. The heating assemblies are arranged on the outer side walls of the mounting stations correspondingly, the pressurizing assemblies are arranged at the center of the fixing base and communicate with the interiors of the mounting stations through a plurality of guide pipes correspondingly, and a control box is arranged on one side of the top face of the base; the control box is electrically connected with the heating assembly and the pressurizing assembly through wires. The fixing seat adopts a plurality of independent spaces for detection, so that a large amount of test time can be saved, multi-working-condition simulation discharge of the SOFC fuel cell can be simulated by depending on the cell in different environments, the influence of the cell temperature, the fuel utilization rate and the fuel composition on the performance of the SOFC fuel cell can be analyzed, and the dynamic and transient characteristics of power supply equipment can be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing equipment, in particular to a hydrogen fuel cell testing and evaluation device. Background Art

[0002] A hydrogen fuel cell is a power generation device that converts the chemical energy of hydrogen and oxygen directly 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 to reach the cathode through an external load. Hydrogen fuel cells are environmentally friendly. They use electrochemical reactions rather than combustion (gasoline, diesel) or energy storage (batteries). Combustion releases pollutants such as COx, NOx, SOx gases and dust. Therefore, hydrogen fuel cells are often used as a new energy source in various industries.

[0003] After the production and processing of hydrogen fuel cells are completed, their performance needs to be tested. The performance test of the battery can be carried out by measuring its voltage, current and other parameters through special testing equipment, but the equipment is only carried out under fixed environment. When the battery is actually used in life, the different working environment will also lead to different working effects of the battery. Among them, the temperature and pressure have the greatest impact on the battery. There will be huge differences in the working effect of the battery under different temperature and pressure environments. Therefore, testing the battery at different temperatures is very valuable for reference. Utility Model Content

[0004] Based on the above description, the utility model provides a hydrogen fuel cell testing and evaluation device to solve the problem that the existing testing equipment has a single environment and cannot be tested according to actual usage conditions, thereby failing to detect the working conditions of the battery under different temperatures and pressures.

[0005] The utility model is realized through the following technical solutions:

[0006] A hydrogen fuel cell testing and evaluation device comprises a base, wherein a test box is provided on the top surface of the base, a fixed seat is provided inside the test box, the fixed seat is cylindrical and has a plurality of installation stations inside, a battery is arranged on each of the installation stations, and a heating component and a pressurizing component are also provided inside the fixed seat, wherein the heating components are provided in a plurality of groups and are respectively arranged on the outer wall of each installation station, the pressurizing component is provided with a group arranged at the center of the fixed seat and connected to the interior of a plurality of installation stations through a plurality of conduits, a control box is arranged on one side of the top surface of the base, and the control box is electrically connected to the heating component and the pressurizing component through wires.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the installation station is a cylindrical groove extending downward from the top surface of the fixing seat to the bottom surface, and there are at least 6 installation stations arranged in a circular array at the center of the fixing seat. A cylinder is also provided on the top surface of the test box, and the telescopic end of the cylinder extends downward to the inside of the box body and is provided with a cover plate at the bottom end. Matching terminals are arranged on the bottom surface of the cover plate and the inner bottom surfaces of the 6 installation stations, one end of the terminal is respectively connected to the two ends of the battery, and the other end of the terminal is externally connected to the discharger through a wire.

[0009] Furthermore, the heating component is an electric heating plate, each group of the electric heating plates is sleeve-shaped and is correspondingly arranged on the outer wall of the installation station, multiple groups of electric heating plates are electrically connected to the control box through wires, and an insulation layer is also provided on the outside of the electric heating plate, and the insulation layer is heat-insulating cotton.

[0010] Furthermore, a terminal board is provided on the inner bottom surface of the fixing seat, and the terminal board is connected to the external current. The positive and negative terminals of multiple groups of the electric heating plates are connected to the multiple positive and negative interfaces on the terminal board in sequence, and the terminal board is also equipped with multiple transformers to control the current size of each group of connections respectively.

[0011] Furthermore, the pressurizing assembly includes an air pump fixedly installed at the inner center of the fixing base, a diverter joint is provided at the top of the air pump, a plurality of branch pipes are connected to the top of the diverter joint, and an air inlet hole is protruding outward on the side wall of each installation station, and the other end of the branch pipe is correspondingly connected to the air inlet hole.

[0012] Furthermore, an electronic valve is provided in the air inlet, and the electronic valve is electrically connected to the control box via a wire.

[0013] Furthermore, a temperature sensor and a pressure sensor are also provided inside the installation station. The temperature sensor is used to detect the surface temperature of the battery, and the pressure sensor is used to detect the pressure inside the installation station.

[0014] Furthermore, a display screen is provided on the surface of the control box, and the temperature sensor and pressure sensor of the display screen are electrically connected and display the detected data.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] The fixing seat in the present application adopts multiple independent spaces for detection, so in the actual operation process, the environment in which each battery is located can be debugged separately, which can not only save a lot of testing time, but also rely on the battery to simulate the constant current discharge, constant voltage discharge, constant load discharge, constant power discharge and other working conditions of the SOFC fuel cell under different environments. Simulated discharge, so as to rely on the data comparison between multiple groups of fuel cells, analyze the influence of battery temperature, fuel utilization rate, and fuel composition on the performance of the SOFC fuel cell, and test the dynamic and transient characteristics of the power supply equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the base in this embodiment;

[0018] Figure 2 Schematic diagram of the internal structure of the test box in this embodiment;

[0019] Figure 3 Schematic diagram of the internal structure of the fixing base in this embodiment;

[0020] Figure 4 This is a schematic diagram of the structure of the installation station in this embodiment;

[0021] Among them: 1. Base; 2. Test box; 21. Cylinder; 22. Cover plate; 3. Fixed seat; 31. Installation station; 32. Air inlet; 4. Heating component; 41. Electric heating plate; 5. Pressurizing component; 51. Air pump; 52. Branch pipe; 6. Control box. DETAILED DESCRIPTION

[0022] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0024] Combination Figure 1 and Figure 2 As shown, a hydrogen fuel cell testing and evaluation device comprises:

[0025] Base 1 is a rectangular support pedestal built of metal pipes, 2240 mm long, 865 mm wide and 1800 mm high. A support plate is arranged horizontally at 665 mm. Two rectangular spaces are formed under the support plate and cabinets are installed here to place various metal parts.

[0026] The test box 2 is rectangular and has a door on the front, and the bottom of the test box 2 is fixedly connected to the top surface of the base 1 by bolts;

[0027] The fixing seat 3 is set in a cylindrical shape and connected to the box body as a whole, and is provided with 6 installation stations 31 for installing batteries, and its interior is hollow. At the same time, a cover plate 22 is correspondingly provided inside the test box 2, and the cover plate 22 and the installation station 31 are both provided with terminals for connecting with the battery to discharge it;

[0028] The heating assembly 4 is arranged inside the fixing seat 3 and is used to heat the inside of the installation station 31 and maintain a constant temperature therein;

[0029] The pressurizing component 5 is used to pressurize the interior of the fixing seat 3 and maintain a constant pressure state therein;

[0030] The control box 6 is fixedly mounted on the top surface of the base 1 and arranged close to one side of the test box 2. It is controlled and connected with the electronic components in each component through the internal circuit board and wires, and can also rely on the display screen arranged on the surface to display in real time the internal conditions of the installation station 31 and the continuous discharge status of the battery during the test.

[0031] Specifically, there are 6 installation stations 31, all of which are cylindrical grooves formed by the top surface of the fixing seat 3 being sunken downward to the bottom surface. Therefore, the space of each groove is relatively independent. Multiple installation stations 31 are arranged in an array around the center circle of the fixing seat 3. The battery to be tested can be completely loaded into the installation station 31, and only the wiring terminal at the top of the battery is left outside. At the same time, the space of the installation station 31 should be larger than the outer diameter of the battery, so that there is enough installation space to test batteries of other models and sizes.

[0032] Based on the above installation structure considerations, in order to keep the battery in a vertical state, the batteries in the installation station 31 should be arranged with the protruding parts at the top facing upwards, and a spring should be arranged outside the terminal on the bottom surface of the cover plate 22 in the control box 6. The spring can be sleeved on the protruding part of the top of the battery to achieve a preliminary limiting effect, so that the battery can be arranged as close to the center of the installation station 31 as possible.

[0033] In addition, in order to facilitate the staff to disassemble and assemble the battery, a cylinder 21 should be set on the top surface of the test box 2. The bottom end of the cylinder 21 extends downward and is fixedly connected to the center of the top surface of the cover plate 22, so that it can be buckled by itself in the direction of up and down movement. In addition, an additional sealing structure needs to be arranged on the bottom surface of the cover plate 22 so that after the buckling is completed, each installation station 31 can be an independent and closed space.

[0034] The heating component 4 adopts an electric heating plate 41 structure, that is, a cylindrical electric heating plate 41 is sleeved on the outer wall of the installation station 31, so that it heats the outer wall of the installation station 31 by contact, and finally maintains a constant temperature inside the installation station 31. The outer periphery of the electric heating plate 41 is also provided with an insulation layer made of insulation cotton to prevent the temperature at the installation station 31 from dissipating too quickly, thereby maintaining a relatively stable test environment.

[0035] In this embodiment, the purpose of synchronous testing of multiple installation stations 31 is to facilitate the comparison of test structures. Therefore, the temperature to be maintained at each installation station 31 is different, that is, it is necessary to control multiple groups of heating components 4 separately to maintain different temperatures inside the multiple installation stations 31. Based on this requirement, in this embodiment, the electric heating plates 41 should be electrically connected to the control box 6 one by one, so as to adjust the heating temperature by remote control.

[0036] A terminal block is also provided at the bottom of the fixing seat 3, which is connected to an external power supply, and a circuit breaker is also provided inside the terminal block, which is used to control the current between the terminal block and multiple groups of heating components 4, so as to control the number of installation stations 31 used according to actual usage requirements.

[0037] The pressurizing component 5 includes an air pump 51 fixedly installed at the center of the inner bottom surface of the fixing seat 3. A diverter joint is provided at the top of the air pump 51, and a plurality of branch pipes 52 are provided on the diverter joint. An air inlet 32 ​​is protruding outward on the outer wall of each installation station 31. The branch pipe 52 is connected to the air inlet 32, and an electronic valve is also provided in the air inlet 32. Each electronic valve is electrically connected to the control box 6 through a wire, so as to control the amount of gas injected into the installation station 31 and the internal pressure by controlling the closing time of the electronic valve.

[0038] Based on the above structures of the heating component 4 and the pressurizing component 5 , a temperature sensor and a pressure sensor should also be set inside the installation station 31 . The temperature sensor is used to detect the heating condition of the battery in a constant temperature environment, while the pressure sensor is used to detect the internal pressure of the installation station 31 .

[0039] In order to facilitate the control of various components, a display screen and control buttons should also be set on the outer wall of the control box 6. The display screen is used to display the data detected by the temperature sensor and the pressure sensor.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. A hydrogen fuel cell test and evaluation device, characterized in that: The invention comprises a base (1), wherein a test box (2) is provided on the top surface of the base (1), wherein a fixing seat (3) is provided inside the test box (2), wherein the fixing seat (3) is cylindrical and has a plurality of installation stations (31) inside, wherein each of the installation stations (31) is provided with a battery, and wherein a heating component (4) and a pressurizing component (5) are also provided inside the fixing seat (3), wherein the heating components (4) are provided in a plurality of groups and are respectively arranged on the outer wall of each installation station (31), wherein the pressurizing component (5) is provided with a group arranged at the center of the fixing seat (3) and is respectively connected to the interior of the plurality of installation stations (31) through a plurality of conduits, and a control box (6) is arranged on one side of the top surface of the base (1), wherein the control box (6) is electrically connected to the heating component (4) and the pressurizing component (5) through a wire.

2. A hydrogen fuel cell testing and evaluation device according to claim 1, characterized in that: The installation station (31) is a cylindrical groove extending downward from the top surface of the fixing seat (3) to the bottom surface, and at least six installation stations (31) are arranged in a circular array at the center of the fixing seat (3). The top surface of the test box (2) is also provided with a cylinder (21), the telescopic end of the cylinder (21) extends downward to the inside of the box body and a cover plate (22) is provided at the bottom end, and matching terminal blocks are arranged on the bottom surface of the cover plate (22) and the inner bottom surfaces of the six installation stations (31), one end of the terminal block is respectively connected to the two ends of the battery, and the other end of the terminal block is externally connected to the discharger through a wire.

3. A hydrogen fuel cell testing and evaluation device according to claim 1, characterized in that: The heating assembly (4) is an electric heating plate (41), each group of the electric heating plates (41) is sleeve-shaped and is correspondingly arranged on the outer wall of the installation station (31), and multiple groups of electric heating plates (41) are electrically connected to the control box (6) through wires. The outside of the electric heating plate (41) is also provided with a heat preservation layer, and the heat preservation layer is heat insulation cotton.

4. A hydrogen fuel cell testing and evaluation device according to claim 3, characterized in that: A wiring board is also provided on the inner bottom surface of the fixing seat (3), and the wiring board is connected to the external current. The positive and negative terminals of the plurality of groups of the electric heating plates (41) are sequentially connected to the plurality of positive and negative terminals on the wiring board. A circuit breaker is also provided in the wiring board to control the current on and off of each group of wiring points.

5. A hydrogen fuel cell testing and evaluation device according to claim 1, characterized in that: The pressurizing component (5) includes an air pump (51) fixedly installed at the inner center of the fixing seat (3), and a diverter joint is provided at the top of the air pump (51). A plurality of branch pipes (52) are connected to the top of the diverter joint. An air inlet (32) is protruding outwardly on the side wall of each installation station (31), and the other end of the branch pipe (52) is correspondingly connected to the air inlet hole (32).

6. A hydrogen fuel cell testing and evaluation device according to claim 5, characterized in that: An electronic valve is also provided in the air inlet (32), and the electronic valve is electrically connected to the control box (6) via a wire.

7. A hydrogen fuel cell testing and evaluation device according to claim 1, characterized in that: A temperature sensor and a pressure sensor are also provided inside the installation station (31), wherein the temperature sensor is used to detect the surface temperature of the battery, and the pressure sensor is used to detect the pressure inside the installation station (31).

8. A hydrogen fuel cell testing and evaluation device according to claim 7, characterized in that: The surface of the control box (6) is also provided with a display screen, which is electrically connected to the temperature sensor and the pressure sensor and displays the detected data.

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