Device for filtering and cleaning hydrogen fuel cell catalyst
By designing a device that includes a vessel body, filter plates, stirring blades, inclined guide tubes, a collection tank, and an ultrafiltration membrane, the problems of poor catalyst cleaning effect and difficult water separation in hydrogen fuel cells were solved, achieving a highly efficient cleaning and drying process and improving production efficiency.
Patent Information
- Application Number
- CN202422948856.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing hydrogen fuel cell catalyst filtration and cleaning devices have poor cleaning effects and difficulty in separating the catalyst from water, which affects production efficiency.
A device comprising a vessel body, filter plates, stirring blades, inclined guide tubes, a collection tank, a heating plate, and an ultrafiltration membrane was designed. The flow and separation of deionized water and catalyst are controlled by a motor-driven rotating shaft and a solenoid valve to achieve thorough cleaning and drying.
This process achieves full contact between the catalyst and deionized water, improving the cleaning effect and effectively removing moisture, thus increasing production efficiency.
Smart Images
Figure CN223815748U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydrogen fuel cell technical field, specifically, relate to a device for hydrogen fuel cell catalyst filtration cleaning. BACKGROUND
[0002] Hydrogen fuel cell is the chemical energy direct conversion into electric energy's power generation device, hydrogen fuel cell's catalyst is mostly platinum carbon catalyst, and it needs to use filtration cleaning device to remove the organic solvent and impurity remaining on the catalyst surface in the preparation process.
[0003] Chinese patent CN2269260U discloses a device for hydrogen fuel cell catalyst filtration cleaning, adds deionized water to the kettle body that carries target catalyst through diaphragm pump, and fully stirs through agitator, after target catalyst particles deposit as block solid in kettle body bottom, continues to add deionized water to the kettle body, and further stretches the stirring paddle into the kettle body until the stirring paddle contacts the target catalyst surface, further disperses the catalyst solid through the stirring paddle and forms small particles, and the organic solvent, impurity element etc.on the catalyst particle surface is dissolved in deionized water, and simultaneously, the ultrasonic vibration device can be opened to disperse small particles into micron level, nanometer level particles through ultrasonic wave, and simultaneously, the ultrasonic wave can further separate the organic solvent, impurity adsorbed in the catalyst particle micropore and make it also dissolved in deionized water;However, the filter hole in the device is arranged at the bottom of the kettle body, so that when deionized water is added to the kettle body, it is difficult for deionized water to stay in the interior of the kettle body, which makes it difficult for catalyst particles to fully contact deionized water during stirring, resulting in that the organic solvent and impurity in the catalyst cannot be fully dissolved in deionized water, and the cleaning effect is poor, in addition, the device cannot separate the processed catalyst particles from water, and the finished product discharged from the filter hole contains a large amount of water, which still needs subsequent arrangement of staff to dehydrate and dry the catalyst, thereby affecting the production efficiency. UTILITY MODEL CONTENT
[0004] The utility model provides a device for hydrogen fuel cell catalyst filtration cleaning, solves the technical problem that the prior art cleaning effect is poor, and in addition, the processed catalyst particles cannot be separated from water.
[0005] In view of the above problems, the technical scheme provided by the utility model is:
[0006] The utility model provides a device for hydrogen fuel cell catalyst filter cleaning, including the kettle body, the inside of kettle body is provided with filter plate, the first rotating shaft that is driven by motor is arranged in the kettle body in the position of filter plate's top, the fixed connection of stirring vane is arranged on the first rotating shaft, the bottom of kettle body is connected with the discharge pipe, the first solenoid valve is installed on the discharge pipe, the bottom of discharge pipe is connected with the inclined pipe, the device further includes a group of material collecting groove, the material collecting groove is located the inclined pipe bottom end discharge port below, the bottom of material collecting groove is provided with the heating plate, a group of liquid discharge pipes are connected to the discharge pipe above the first solenoid valve, the second solenoid valve is installed on the liquid discharge pipe, and the end of liquid discharge pipe is provided with ultrafiltration membrane with the junction of discharge pipe.
[0007] Further, the inside of the inclined pipe is rotatably connected with a second rotating shaft driven by a motor, and the surface of the second rotating shaft is sleeved with a spiral auger.
[0008] Further, the inside of the material collecting groove is rotatably connected with a third rotating shaft driven by a motor, and the third rotating shaft is connected with a material turning plate.
[0009] Further, the material turning plate is fixedly connected on the third rotating shaft in two groups, a plurality of groups of openings are arranged on the material turning plate, and the opening positions of the two groups of material turning plates are staggered.
[0010] Further, three groups of supporting rods are connected around the bottom of the kettle body, and mounting holes are arranged at the bottom ends of the supporting rods.
[0011] Further, the stirring vane is distributed on the surface of the first rotating shaft in multiple groups, and teeth are arranged on the edges of the stirring vane.
[0012] Compared with the prior art, the utility model has the beneficial effects that: by closing the first solenoid valve and the second solenoid valve, the deionized water injected into the kettle body can be stored in the kettle body, the stirring vane can disperse and stir the catalyst by rotating, the organic solvent and impurities in the catalyst can be more fully dissolved in the deionized water, and the catalyst can be fully cleaned. In addition, when the catalyst processing is completed, the second solenoid valve is opened to make the water in the kettle body pass through the ultrafiltration membrane and be discharged from the liquid discharge pipe, the first solenoid valve is closed and opened, the small particle catalyst processed falls into the material collecting groove, and the catalyst particles in the material collecting groove are heated and dried by the heating plate, which can effectively remove the moisture in the catalyst and effectively improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments of the present application will be briefly introduced as follows. Obviously, the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope, and all other embodiments obtained by those skilled in the art without creative effort based on these drawings also belong to the scope of protection of the present application.
[0014] Figure 1 The structure of the present application is shown in the figure.
[0015] Figure 2 The side view of the present application is shown in the figure.
[0016] Figure 3 The internal structure of the kettle body and the inclined guide pipe in the present application is shown in the figure.
[0017] Figure 4 The structure of the collecting tank and the third rotating shaft in the present application is shown in the figure.
[0018] Figure 5 The structure of the turning plate and the notch in the present application is shown in the figure.
[0019] Figure 6 The structure of the stirring blade and the tooth in the present application is shown in the figure.
[0020] Figure 7 The structure of the liquid discharge pipe and the ultrafiltration membrane in the present application is shown in the figure.
[0021] In the figure: 1, kettle body; 2, filter plate; 3, first rotating shaft; 4, discharge pipe; 5, first electromagnetic valve; 6, inclined guide pipe; 7, collecting tank; 8, heating plate; 9, stirring blade; 10, second rotating shaft; 11, spiral auger; 12, third rotating shaft; 13, turning plate; 14, notch; 15, support rod; 16, mounting hole; 17, tooth; 18, liquid discharge pipe; 19, second electromagnetic valve; 20, ultrafiltration membrane. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort also belong to the scope of protection of the present application.
[0023] The following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but merely represents selected embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the protection of the application.
[0024] Please refer to Figures 1-7 A device for filtering and cleaning hydrogen fuel cell catalysts, comprising a kettle body 1, the inside of the kettle body 1 is loaded with target catalysts, the inside of the kettle body 1 is provided with a filter plate 2, the kettle body 1 is provided with a first rotating shaft 3 driven by a motor above the filter plate 2, the first rotating shaft 3 is fixedly connected with stirring blades 9, after deionized water is injected into the inside of the first rotating shaft 3 loaded with target catalysts, the motor can be started to drive the first rotating shaft 3 to rotate, so that the first rotating shaft 3 drives the stirring blades 9 to rotate in the inside of the kettle body 1, the stirring blades 9 can disperse the catalysts in the inside of the kettle body 1 into small particles by rotating, the small particle catalysts can pass through the filter plate 2, and the large particle catalysts are intercepted by the filter plate 2 above, the bottom of the kettle body 1 is connected with a discharge pipe 4, the discharge pipe 4 is installed with a first electromagnetic valve 5, the bottom end of the discharge pipe 4 is connected with an inclined pipe 6, the device further comprises a group of material collecting tanks 7, the material collecting tanks 7 are located below the bottom end discharge port of the inclined pipe 6, after the first electromagnetic valve 5 is opened, the small particle catalysts in the inside of the kettle body 1 will enter the inclined pipe 6 through the discharge pipe 4, the inclined pipe 6 is inclined downward, at this time, the catalyst particles will slide along the inclined pipe 6 to the material collecting tanks 7, the bottom of the material collecting tanks 7 is provided with a heating plate 8, the heating plate 8 can emit heat to heat and dry the catalysts in the inside of the material collecting tanks 7, a group of liquid discharge pipes 18 are connected above the first electromagnetic valve 5 on the discharge pipe 4, the liquid discharge pipes 18 are installed with a second electromagnetic valve 19, the end of the liquid discharge pipes 18 connected with the discharge pipe 4 is provided with an ultrafiltration membrane 20, the ultrafiltration membrane 20 can separate water and solid particles, when the first electromagnetic valve 5 is in a closed state, the second electromagnetic valve 19 can be opened to make the deionized water in the inside of the kettle body 1 discharge through the liquid discharge pipes 18, and the small particle catalysts in the kettle body 1 cannot discharge from the liquid discharge pipes 18 because they cannot pass through the ultrafiltration membrane 20.
[0025] In use, the first electromagnetic valve 5 and the second electromagnetic valve 19 are in a closed state, after the deionized water is injected into the inside of the first rotating shaft 3 loaded with the target catalyst, the deionized water and the catalyst can be stored in the inside of the kettle body 1, the motor is started to drive the first rotating shaft 3 to rotate, so that the first rotating shaft 3 drives the stirring blade 9 to rotate in the inside of the kettle body 1, the stirring blade 9 can disperse the catalyst in the inside of the kettle body 1 into small particles by rotating, and at the same time, the stirring blade 9 can stir the catalyst by rotating, so that the organic solvent and impurities in the catalyst can be more fully dissolved in the deionized water, and then the catalyst is fully cleaned, after a certain time, the deionized water in the inside of the kettle body 1 is discharged through the drain pipe 18 by opening the second electromagnetic valve 19, after the deionized water is discharged, the second electromagnetic valve 19 is closed and the first electromagnetic valve 5 is opened, at this time, the catalyst in the form of small particles in the inside of the kettle body 1 will fall into the inclined pipe 6 from the discharge pipe 4 at the bottom of the kettle body 1 and then slide into the inside of the collecting tank 7, and the water in the catalyst can be removed by heating through the heating plate 8 at the bottom of the collecting tank 7, so that the catalyst can be kept dry, and the catalyst particles which are not completely crushed will be intercepted by the filter plate 2 in the kettle body 1, and the above steps are repeated to filter and clean the catalyst particles which are not completely crushed, in summary, the device can keep the deionized water in the inside of the kettle body 1, so that the catalyst particles in the inside of the kettle body 1 can be fully contacted with the deionized water, in the process of dispersing and stirring the catalyst particles, the organic solvent and impurities in the catalyst can be more fully dissolved in the deionized water, and after cleaning and filtering, the deionized water containing impurities can be discharged to separate from the catalyst, and then the cleaned and filtered catalyst is dried to effectively remove the residual water, thereby improving the production efficiency.
[0026] Further, please refer to Figure 3 , the inside of the inclined pipe 6 is rotatably connected with the second rotating shaft 10 driven by the motor, and the surface of the second rotating shaft 10 is sleeved with the spiral auger 11, when the first electromagnetic valve 5 is opened to discharge the catalyst particles in the inside of the kettle body 1 through the discharge pipe 4, the motor driving the second rotating shaft 10 to rotate can be started, and the second rotating shaft 10 drives the spiral auger 11 to rotate, at this time, when the catalyst discharged by the discharge pipe 4 falls into the inclined pipe 6, the rotating spiral auger 11 can push the catalyst in the inside of the inclined pipe 6 to move towards the end of the inclined pipe 6, so as to ensure that the catalyst can slide from the end of the inclined pipe 6 to the collecting tank 7, and prevent the catalyst from being blocked in the inside of the inclined pipe 6 and being difficult to slide.
[0027] Further, please refer to Figures 4-5The third rotating shaft 12 is driven by a motor, and the turnover plate 13 is connected to the third rotating shaft 12, so that the turnover plate 13 can be rotated by the third rotating shaft 12 when the catalyst falls into the collecting tank 7, and the turnover plate 13 can turn the catalyst in the collecting tank 7, so that the water in the catalyst particles can be quickly evaporated under the heating of the heating plate 8.
[0028] Further, please refer to Figure 5 The turnover plate 13 is fixedly connected to the third rotating shaft 12 in two groups, and a plurality of openings 14 are arranged on the turnover plate 13. When the turnover plate 13 rotates to turn the catalyst in the collecting tank 7, the openings 14 can allow part of the catalyst to pass through the turnover plate 13 to avoid the catalyst from accumulating on one side of the turnover plate 13, which affects the evaporation of the water in the catalyst. The positions of the openings 14 on the two groups of turnover plates 13 are staggered, so that the catalyst in each part of the collecting tank 7 can be turned, and the catalyst can be uniformly turned.
[0029] Further, please refer to Figure 1 Three groups of supporting rods 15 are connected around the bottom of the kettle body 1, which can provide stable support for the kettle body 1. The bottom end of the supporting rod 15 is provided with a mounting hole 16, so that the kettle body 1 can be fixedly installed on the work site by screws.
[0030] Further, please refer to Figure 3 and Figure 6 The stirring blades 9 are distributed on the surface of the first rotating shaft 3 in multiple groups, so that the catalyst at different heights in the kettle body 1 can be dispersed and stirred by the stirring blades 9. The edges of the stirring blades 9 are provided with teeth 17. When the stirring blades 9 rotate, the sharp teeth 17 can cut the catalyst when contacting the catalyst particles, so that the catalyst can be efficiently dispersed into small particles.
[0031] The above is only a preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An apparatus for filtering and cleaning catalysts in hydrogen fuel cells, comprising a vessel body (1), characterized in that, The vessel body (1) is equipped with a filter plate (2) inside. A first rotating shaft (3) driven by a motor is located above the filter plate (2) in the vessel body (1). A stirring blade (9) is fixedly connected to the first rotating shaft (3). A discharge pipe (4) is connected to the bottom of the vessel body (1). A first solenoid valve (5) is installed on the discharge pipe (4). An inclined guide tube (6) is connected to the bottom end of the discharge pipe (4). The device also includes a set of collection tanks (7). The collection tanks (7) are located below the discharge port at the bottom end of the inclined guide tube (6). A heating plate (8) is provided at the bottom of the collection tanks (7). A set of drain pipes (18) is connected to the discharge pipe (4) above the first solenoid valve (5). A second solenoid valve (19) is installed on the drain pipes (18). An ultrafiltration membrane (20) is provided at the end of the drain pipe (18) that intersects with the discharge pipe (4).
2. The apparatus for filtration and cleaning of catalysts in hydrogen fuel cells according to claim 1, characterized in that, The inclined guide tube (6) is internally rotatably connected to a second rotating shaft (10) driven by a motor, and a spiral auger (11) is sleeved on the surface of the second rotating shaft (10).
3. The apparatus for filtration and cleaning of hydrogen fuel cell catalysts according to claim 1, characterized in that, The material collection trough (7) is internally connected to a third rotating shaft (12) driven by a motor, and a tilting plate (13) is connected to the third rotating shaft (12).
4. The apparatus for filtration and cleaning of hydrogen fuel cell catalysts according to claim 3, characterized in that, The flipping plates (13) are fixedly connected in two groups to the third rotating shaft (12). The flipping plates (13) are provided with several sets of notches (14), and the positions of the notches (14) on the two sets of flipping plates (13) are staggered.
5. The apparatus for filtration and cleaning of catalysts in hydrogen fuel cells according to claim 1, characterized in that, The bottom of the vessel body (1) is surrounded by three sets of support rods (15), and the bottom end of the support rods (15) is provided with mounting holes (16).
6. The apparatus for filtration and cleaning of catalysts in hydrogen fuel cells according to claim 1, characterized in that, The stirring blades (9) are distributed in multiple groups on the surface of the first rotating shaft (3), and the edges of the stirring blades (9) are provided with teeth (17).