Convenient testing equipment for fuel cell catalyst
By combining the tilted test chamber and the superhydrophobic coating, the problem of bubble adhesion in the rotating disk electrode test was solved, enabling efficient and accurate testing of fuel cell catalysts and improving data stability and ease of operation.
Patent Information
- Application Number
- CN202522471650.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-11-21
AI Technical Summary
During the rotating disk electrode test, air bubbles adhering to the electrode surface can damage the interface between the electrode and the electrolyte, affecting test accuracy and data stability.
By designing an adjustable tilt angle detection box, the combined effect of gravity and centrifugal force is used to cause bubbles to detach from the electrode surface. At the same time, a superhydrophobic coating is used to reduce bubble adhesion. Combined with real-time monitoring by an industrial camera and protective cover to protect the equipment, automated angle adjustment and data monitoring are achieved.
It significantly improves the accuracy and stability of test data, reduces bubble interference, ensures a true reflection of catalyst performance, and enhances the convenience and efficiency of testing.
Smart Images
Figure CN223727749U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electrochemistry test technical field, concretely is a kind of fuel cell catalyst convenient test equipment. BACKGROUND
[0002] With the global energy structure to clean, low carbon transformation, fuel cell has become the research hotspot and development focus in new energy field because of the significant advantages of high efficiency, zero emission.Fuel cell catalyst, as the core carrier of fuel cell electrochemical reaction, its catalytic activity, stability and reaction selectivity directly determine the output power, service life and operating cost of fuel cell, so accurate testing of the performance of fuel cell catalyst is the key link to promote catalyst research and development optimization and guarantee fuel cell product quality.In many testing techniques, rotating disc electrode (RDE) test system has become the mainstream technology for evaluating the electrocatalytic performance of fuel cell catalyst by virtue of the characteristics of accurately controlling the mass transfer rate of electrode surface and simulating the catalyst reaction environment under actual working conditions, and is widely used in laboratory research and development, industrial production quality inspection and other scenes.
[0003] However, in the catalyst testing process based on rotating disc electrode technology, a key problem has long plagued the testing accuracy and result reliability: the gas bubble adhesion problem generated by electrode reaction.When electrocatalytic reaction is carried out, hydrogen, oxygen and other gas products will be generated on the surface of fuel cell catalyst, and if these gas bubbles cannot be detached from the electrode surface, the effective contact interface between the electrode and electrolyte will be directly destroyed.Specifically, the gas bubbles attached to the electrode surface will form a "gas barrier", which will prevent the electrolyte from fully wetting the electrode active sites, greatly reducing the actual reaction area of the catalyst, and causing problems such as low catalytic current density and deviation in reaction kinetics parameter calculation during testing;At the same time, the random adhesion and detachment of gas bubbles on the electrode surface will cause the current signal to fluctuate sharply during testing, affecting the stability and repeatability of the data, and making it difficult to accurately reflect the true performance level of the catalyst.Therefore, the skilled person in the art provides a fuel cell catalyst convenient test equipment to solve the problems raised in the above background technology. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of fuel cell catalyst convenient test equipment to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of fuel cell catalyst convenient test equipment, comprising:
[0007] The utility model discloses a rotating disc electrode device, the rotating disc electrode device includes detection box, rotating disc electrode, reference electrode, drive system and electrolyte tank, the drive system sets up on the detection box, and is driven with rotating disc electrode connection, the electrolyte tank sets up on the detection box, and is located the upper of rotating disc electrode, the working surface of rotating disc electrode enters the electrolyte tank, the reference electrode is installed on the electrolyte tank, and enters its inside, the detection box is equipped with the protective cover, one side of the detection box is equipped with the bottom plate,
[0008] The detection box is provided with a mounting plate, and an industrial camera for monitoring the electrolyte tank is mounted on the mounting plate.
[0009] The support plate is provided with an electric push rod, and an output end of the electric push rod is connected with the detection box and the bottom plate through a second connecting assembly.
[0010] Preferably, the detection box is provided with side plates on both sides, and the side plates and the bottom plate are provided with clamping grooves for clamping the protective cover.
[0011] Preferably, the first connecting assembly comprises a first connecting block and a second connecting block, and the first connecting block is rotatably connected with the second connecting block through first rotating rods on both sides.
[0012] Preferably, the second connecting assembly comprises a third connecting block and a fourth connecting block, and the third connecting block is rotatably connected with the fourth connecting block through second rotating rods on both sides.
[0013] Preferably, the second rotating rod is provided with an angle sensor for detecting the rotation of the second rotating rod, and the support plate is provided with a rubber layer.
[0014] Preferably, the surface of the reference electrode is provided with a super-hydrophobic coating, and the surface roughness Ra of the super-hydrophobic coating is less than or equal to 0.8 microns.
[0015] Preferably, the detection box is provided with a controller, and the controller is electrically connected with the detection box, the industrial camera, the electric push rod and the angle sensor.
[0016] Compared with the prior art, the utility model has the advantages that:
[0017] The utility model discloses a support plate, telescopic link, support rod and electric push rod etc. Structure can be adjusted the inclination angle of detection box flexibly, makes the rotating disc electrode in the test process to be in the inclined state. Utilize the gravity component force of inclination angle and the rotation centrifugal force of rotating disc electrode form the synergies, can more efficiently promote the bubble that the electrode surface reaction produces to separate, effectively reduce the interference of bubble adhesion to electrode and electrolyte contact, the accuracy and stability of test data are improved significantly, more truly reflect the performance of catalyst.
[0018] The utility model discloses a protection cover can form effective protection to detection box internal structure and test process, reduce the corrosion and pollution of electrolyte splashing to equipment parts, reduce the influence of external environment impurity to test simultaneously, industrial camera can real -time monitoring the state in electrolyte tank, be convenient for timely discovery electrolyte liquid level abnormality, solution turbidity etc, need not manual frequent observation, the convenience and efficiency of test have been improved, the whole structure design has given consideration to protection, monitoring and angle adjustment function, convenient operation and strong stability can better satisfy the diversified fuel cell catalyst test demand. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the structure schematic diagram of a kind of fuel cell catalyst convenient test equipment in the embodiment of the application;
[0020] Figure 2 It is the sectional structure schematic diagram of a kind of fuel cell catalyst convenient test equipment in the embodiment of the application;
[0021] Figure 3 It is the sectional structure schematic diagram of the second rotating rod of a kind of fuel cell catalyst convenient test equipment in the embodiment of the application;
[0022] Figure 4 It is Figure 3 Enlarged view in A.
[0023] In the figure: 1, detection box;2, rotating disc electrode;3, reference electrode;4, drive system;5, electrolyte tank;6, protection cover;7, bottom plate;8, mounting plate;9, industrial camera;10, support plate;11, telescopic link;12, support rod;13, electric push rod;14, side plate;15, clamping groove;16, first connecting block;17, second connecting block;18, first rotating rod;19, third connecting block;20, fourth connecting block;21, second rotating rod;22, angle sensor;23, rubber layer;24, controller. DETAILED DESCRIPTION
[0024] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, apparently, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.
[0025] Please refer to Figures 1-4 The utility model provides a technical scheme:
[0026] A kind of fuel cell catalyst convenient test equipment, comprising:
[0027] Rotary disc electrode device, rotary disc electrode device includes detection box 1, rotary disc electrode 2, reference electrode 3, drive system 4 and electrolyte tank 5, drive system 4 is set on detection box 1, and is driven to connect with rotary disc electrode 2, electrolyte tank 5 is set on detection box 1, and is located the above of rotary disc electrode 2, the working surface of rotary disc electrode 2 extends into electrolyte tank 5;Reference electrode 3 is installed on electrolyte tank 5, and extends into its interior, reference electrode 3 surface is equipped with super-hydrophobic coating, and the surface roughness Ra of super-hydrophobic coating ≤0.8 μm, detection box 1 is equipped with protective cover 6, both sides of detection box 1 are equipped with side plate 14, and the clamping groove 15 for the clamping of protective cover 6 is set on side plate 14 and bottom plate 7, and one side of detection box 1 is equipped with bottom plate 7;
[0028] The super-hydrophobic coating (roughness Ra ≤0.8 μm) prepared in advance on the surface of reference electrode 3 plays a key role, and the extremely low surface and fine surface structure can greatly reduce the adhesion of bubbles and electrode surface in subsequent test, reduce the bubble adhesion problem from the source, and lay the foundation for improving test accuracy.
[0029] Protective cover 6 is installed on the clamping groove 15 on both sides side plate 14 and bottom plate 7 of detection box 1, and the clamping type design can quickly realize equipment protection.
[0030] Detection box 1 is installed with mounting plate 8, and industrial camera 9 for monitoring electrolyte tank 5 is installed on mounting plate 8;
[0031] Support plate 10, one end of support plate 10 is installed with telescopic rod 11, the other end of support plate 10 is installed with support rod 12, the other end of telescopic rod 11 and support rod 12 is connected with detection box 1 and bottom plate 7 through first connecting assembly, and electric push rod 13 is installed on support plate 10, and the output end of electric push rod 13 is connected with detection box 1 and bottom plate 7 through second connecting assembly.
[0032] Specifically, the first connecting assembly includes a first connecting block 16 and a second connecting block 17, and the first connecting block 16 is rotatably connected to the second connecting block 17 through a first rotating rod 18 on both sides. The second connecting assembly includes a third connecting block 19 and a fourth connecting block 20, and the third connecting block 19 is rotatably connected to the fourth connecting block 20 through a second rotating rod 21 on both sides. An angle sensor 22 for detecting the rotation of the second rotating rod 21 is installed on the second rotating rod 21. The support plate 10 is provided with a rubber layer 23.
[0033] After the device is prepared, the parameter setting link is entered. The operator inputs the target inclination angle of the detection box 1 through the controller 24 on the detection box 1. After the parameter setting is completed, the angle adjustment program is started. The controller 24 issues an instruction to the electric push rod 13, and the output end of the electric push rod 13 applies a pushing force to the detection box 1 through the second connecting assembly (composed of the third connecting block 19, the fourth connecting block 20 and the second rotating rod 21). At the same time, the telescopic rod 11 at one end of the support plate 10 and the support rod 12 at the other end cooperate to perform the telescopic action through the first connecting assembly (composed of the first connecting block 16, the second connecting block 17 and the first rotating rod 18). In this process, the angle sensor 22 installed on the second rotating rod 21 detects the rotation angle of the second rotating rod 21 in real time and synchronously feeds back the angle data to the controller 24. The controller 24 automatically adjusts the stroke of the electric push rod 13 according to the difference between the preset target angle and the real-time detection angle, accurately controls the inclination angle of the detection box 1, and stops adjusting until the preset value is reached. This automatic adjustment mechanism does not require manual adjustment of the angle of the detection box 1, which not only saves a lot of debugging time, but also ensures the accuracy of the angle adjustment and avoids the problem of damage to the device parts caused by improper force control during manual adjustment. At the same time, after the detection box 1 is inclined, the gravity component can be used to form a synergistic effect with the centrifugal force generated by the subsequent rotating disc electrode 2, so as to accelerate the bubbles generated on the surface of the electrode to detach and float to the surface of the electrolyte, further solve the bubble adhesion problem, and compared with the traditional horizontal test equipment, the bubbles can be more efficiently eliminated to eliminate the interference of the bubbles on the electrode-electrolyte contact interface, and the accuracy and repeatability of the test data can be significantly improved.
[0034] The industrial camera 9 installed on the mounting plate 8 starts to take pictures of the state in the electrolyte tank 5 in real time, including the electrolyte level change, the electrode surface bubble generation and separation situation, whether the solution appears turbid and the like, and transmits the photographed image data to the controller 24 in real time. The controller 24 analyzes and processes the image data, at the same time, the controller 24 continuously receives the angle data fed back by the angle sensor 22, once it is detected that the inclination angle of the detection box 1 deviates due to equipment vibration and other factors, the electric push rod 13 is adjusted in time to maintain the stability of the inclination angle of the detection box 1, and the rubber layer 23 arranged on the support plate 10 can effectively absorb the vibration generated during the operation of the equipment, further guaranteeing the stability of the position of the detection box 1, avoiding the fluctuation of the test data caused by the angle deviation or vibration during the test, and ensuring the reliability of the test results.
[0035] After the test is completed, the end operation stage is entered. The staff issues a stop command through the controller 24, the controller 24 first closes the driving system 4 to stop the rotation of the rotating disc electrode 2, then adjusts the electric push rod 13 to restore the detection box 1 to the horizontal state, and finally removes the protective cover 6 to clean the electrolyte tank 5 and the electrode assembly. The whole operation process is smooth and coherent, and each link realizes efficient operation relying on the structural design and control mechanism of the equipment. From equipment preparation to test completion, the test accuracy, operation convenience, equipment stability and protection are considered throughout the whole process, and the needs of precise and efficient test of fuel cell catalyst are met in all aspects.
[0036] In the above embodiment, the controller 24 is installed on the detection box 1, and the controller 24 is electrically connected with the detection box 1, the industrial camera 9, the electric push rod 13 and the angle sensor 22 respectively.
[0037] It should be noted that the specific model and specification of the controller 24, the detection box 1, the industrial camera 9, the electric push rod 13 and the angle sensor 22 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.
[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A convenient test apparatus for a fuel cell catalyst, characterized by, The utility model relates to a kind of rotating disc electrode device, including detection box (1), rotating disc electrode (2), reference electrode (3), drive system (4) and electrolyte tank (5), the drive system (4) is set on the detection box (1), and with rotating disc electrode (2) drive connection, the electrolyte tank (5) is set on the detection box (1), and located above rotating disc electrode (2), the working surface of rotating disc electrode (2) enters the electrolyte tank (5) inside;Reference electrode (3) is installed on the electrolyte tank (5), and enters its inside, the detection box (1) is equipped with protective cover (6), one side of the detection box (1) is equipped with bottom plate (7); Industrial camera (9) for monitoring electrolyte tank (5) is installed on the mounting plate (8) of the detection box (1); Supporting plate (10), one end of the supporting plate (10) is equipped with telescopic rod (11), supporting plate (10) other end is equipped with support rod (12), the other end of telescopic rod (11) and support rod (12) is connected with detection box (1) and bottom plate (7) by first connecting assembly, electric push rod (13) is installed on the supporting plate (10), and the output end of electric push rod (13) is connected with detection box (1) and bottom plate (7) by second connecting assembly. Both sides of the detection box (1) are equipped with side plate (14), and the clamping groove (15) for clamping protective cover (6) is formed in the side plate (14) and the bottom plate (7).
2. The apparatus according to claim 1, wherein: The first connecting assembly includes first connecting block (16) and second connecting block (17), and the first connecting block (16) is rotatably connected with the second connecting block (17) by first rotating rod (18) on both sides.
3. The apparatus of claim 1, wherein: The second connecting assembly includes third connecting block (19) and fourth connecting block (20), and the third connecting block (19) is rotatably connected with the fourth connecting block (20) by second rotating rod (21) on both sides.
4. The apparatus of claim 1, wherein: Angle sensor (22) for detecting the rotation of second rotating rod (21) is installed on the second rotating rod (21), and rubber layer (23) is arranged on the supporting plate (10).
5. A convenient test apparatus for a fuel cell catalyst according to claim 4, characterized by: The surface of the reference electrode (3) is provided with a super-hydrophobic coating, and the surface roughness Ra of the super-hydrophobic coating is less than or equal to 0.8 μm.
6. The apparatus of claim 1, wherein: A controller (24) is installed on the detection box (1), and the controller (24) is electrically connected with the detection box (1), the industrial camera (9), the electric push rod (13) and the angle sensor (22) respectively.
7. A convenient testing apparatus for a fuel cell catalyst according to claim 5, characterized by: