Automatic electrolyte mixing device

Abstract

The present invention relates to the technical field of electrolyte preparation, and specifically to an automatic electrolyte proportioning and mixing device. The device comprises a tank body, the tank body is fixedly and sealedly connected with an input pipe, one end of the input pipe away from the tank body is sealed and fixedly connected with a first electric control valve, one end of the first electric control valve away from the input pipe is sealed and connected with a metering pump, the metering pump is connected with a container storing a solvent, the metering pump is electrically connected with a controller, and the tank body is also provided with a feeding mechanism, a proportioning mechanism, and a stirring mechanism electrically connected with the controller. The present application can automatically and quantitatively input a solvent through a controller, and automatically proportion the solvent, vanadium oxide, and additives according to a set metering, and then put the vanadium oxide and additives into the tank body for mixing, so as to strictly control the composition and proportion of the electrolyte, realize accurate control and automatic operation in the electrolyte preparation process, avoid the adverse effects caused by manual operation, and ensure the quality and performance of the electrolyte.

Description

Technical Field

[0001] The invention relates to the technical field of electrolyte preparation, and in particular to an automatic proportioning and mixing device for electrolyte. Background Art

[0002] With the depletion of global petrochemical energy and the development of new energy power generation, the demand for large-scale energy storage equipment is becoming increasingly urgent. All-vanadium liquid flow battery, referred to as vanadium battery, is a new type of large-scale energy storage system. Because its electrolyte carrier is an aqueous solution, it has no safety hazards and has been widely favored in recent years. All-vanadium liquid flow battery is the most widely studied and applied liquid flow battery. It has the advantages of independent power and capacity and simple layout. It can achieve large-scale energy storage at the GWh level (1 million kWh); vanadium battery has a long service life and a charge and discharge cycle life of more than 20,000 times; because water is used as a solvent, it has good safety and no explosion or fire hazard. Vanadium battery can be 100% recycled throughout its life cycle, with fast response speed, green environmental protection, high power and high efficiency. It is the preferred battery for large-scale energy storage.

[0003] In the production process of vanadium batteries, in order to ensure the performance and quality of the batteries, the composition and proportion of the electrolyte need to be strictly controlled. At present, the mixing of electrolytes is mainly done by manual operation or simple mechanical stirring. Manual mixing requires a lot of manpower and time, with low production efficiency and high cost. Manual operation is easily affected by human factors, resulting in inaccurate ratios, uneven mixing and other problems, thus affecting the consistency and stability of different batches of batteries.

[0004] Therefore, how to achieve precise control and automated operation to ensure the quality and performance of each batch of electrolyte, and then ensure the performance and quality of the battery is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In order to achieve precise control and automated operation, ensure the consistency of the quality and performance of each batch of electrolyte, and thus ensure the performance and quality of the battery, the present application provides an automatic electrolyte proportioning and mixing device.

[0006] The present application provides an automatic electrolyte mixing device using the following technical solution:

[0007] An automatic electrolyte proportioning and mixing device comprises a tank body, wherein an input pipe is fixedly and sealedly connected to the outer side of the tank body near the top thereof, an output pipe is fixedly and sealedly connected to the outer side of the tank body near the bottom thereof, an end of the input pipe away from the tank body is sealedly and fixedly connected to a first electrically controlled valve, an end of the output pipe away from the tank body is sealedly and fixedly connected to a second electrically controlled valve, an end of the first electrically controlled valve away from the input pipe is sealedly and fixedly connected to a metering pump, the metering pump is sealedly and fixedly connected to a container storing a configured electrolyte solvent, the metering pump is electrically connected to a controller, a feeding mechanism is sealedly connected to the top of the tank body, a proportioning mechanism is provided on the outside of the tank body corresponding to the feeding mechanism, a stirring mechanism is provided on the inside of the tank body, and the feeding mechanism, the proportioning mechanism and the stirring mechanism are all electrically connected to the controller.

[0008] By adopting the above technical scheme, the controller can not only automatically control the metering pump to quantitatively input the solvent for configuring the electrolyte into the tank body through the input pipe, but also control the proportioning mechanism to automatically proportion the solvent, vanadium oxide and additive according to the set measurement, but also automatically control the feeding mechanism to put the vanadium oxide and additive into the tank body for mixing, and also automatically control the stirring mechanism to stir and mix the solvent, vanadium oxide and additive. In this way, the composition and proportion of the electrolyte can be strictly controlled and the electrolyte proportioning and mixing can be automatically completed, thereby realizing precise control and automatic operation in the electrolyte preparation process, avoiding the adverse effects caused by manual operation, ensuring the quality and performance of each batch of electrolyte, and thus ensuring the performance and quality of the battery.

[0009] Furthermore, the feeding mechanism includes a tank cover, which is detachably and sealably connected to the top of the tank body, and a vacuum pipe is sealably and fixedly connected to the tank cover, and a vacuum pump is sealably connected to one end of the vacuum pipe away from the tank cover, and the vacuum pump is electrically connected to the controller; a first feeding pipe is sealably and fixedly connected to the inside of the tank body on the tank cover, and a second feeding pipe is sealably and fixedly connected to the outside of the tank body on the tank cover, the second feeding pipe is sealably connected to the first feeding pipe, and one end of the second feeding pipe away from the tank cover is connected to the proportioning mechanism.

[0010] By adopting the above technical solution, a vacuum is continuously drawn to the interior of the tank body using a vacuum pump, and a sealed negative pressure chamber is formed inside the tank body, and external air enters the interior of the tank body through the second feed pipe and the first feed pipe. When the outer end of the second feed pipe is close to the proportioning mechanism, the vanadium oxide and additive on the proportioning mechanism are driven to enter the interior of the tank body through the second feed pipe and the first feed pipe during the air flow. When the external air enters the solvent, bubbles are formed and float upward and are discharged through the exhaust pipe. In the process of floating upward, bubbles are formed to stir the vanadium oxide and additive in the solvent, thereby promoting the rapid dissolution of the vanadium oxide and additive in the solvent.

[0011] Furthermore, the inner sealing sliding connection of the second feed pipe is connected to the third feed pipe, the outer side of the second feed pipe is fixedly connected to the first mounting seat, the outer side of the third feed pipe is fixedly connected to the second mounting seat, the first mounting seat is fixedly connected to an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected to the second mounting seat, and the electric telescopic rod is electrically connected to the controller.

[0012] By adopting the above technical solution, the electric telescopic rod can drive the third feeding pipe to move up and down through the second mounting seat, so as to adjust the distance between the lower end of the third feeding pipe and the proportioning mechanism. In this way, it can ensure that the vanadium oxide and the additive can be reliably sucked into the third feeding pipe, and the feeding speed of the vanadium oxide and the additive into the tank body can be adjusted, and the third feeding pipe can be completely away from the proportioning mechanism to prevent the vanadium oxide and the additive from entering the tank body.

[0013] Furthermore, the proportioning mechanism includes a weighing platform, which is electrically connected to the controller. A storage box is placed on the weighing platform, and a plurality of storage slots are arranged in parallel on the storage box. Powdered vanadium oxide and additives are stored in the storage slots respectively. A moving component is provided on the weighing platform, which is electrically connected to the controller. The moving component is used to move the weighing platform to align the corresponding storage slots with the feeding mechanism.

[0014] By adopting the above technical solution, the weighing platform can monitor the total weight of the vanadium oxide and additives stored in the storage box in real time, and the weight signal can be converted into an electrical signal and transmitted to the controller in real time. The controller can automatically control the moving component to drive the weighing platform to move according to the change of the weight signal, thereby switching the raw materials sucked in by the feeding mechanism. In this way, accurate proportioning of multiple raw materials can be achieved through weight changes.

[0015] Furthermore, the moving component includes a stepper motor, which is electrically connected to the controller, the stepper motor is fixedly arranged on the tank body, a driving gear is fixedly installed on the stepper motor, a driven rack is fixedly installed on the weighing platform corresponding to the driving gear, the driven rack is meshed with the driving gear, a slide rail is fixedly arranged on the outside of the tank body, a slide groove is opened on the weighing platform corresponding to the slide rail, and the weighing platform is slidably connected to the slide rail through the slide groove.

[0016] By adopting the above technical solution, the stepper motor can drive the driving gear to rotate. During the rotation process, the driving gear will drive the driven rack and the weighing platform to move along the slide rail, thereby realizing the switching of the raw materials sucked in by the feeding mechanism.

[0017] Furthermore, the stirring mechanism includes a tank top cover, which is detachably sealed and connected to the tank cover, and a driving motor is fixedly installed on the tank top cover. A stirring shaft is coaxially fixedly connected to the output shaft of the driving motor, and the stirring shaft is passed through the first feed pipe. A gap is left between the outer side surface of the stirring shaft and the inner wall surface of the first feed pipe, and the lower end of the stirring shaft is fixedly connected to a stirring frame at a position corresponding to the outside of the lower end of the first feed pipe.

[0018] By adopting the above technical solution, the driving motor can be used to drive the stirring shaft to rotate, and the stirring shaft will drive the stirring frame to stir the outside of the lower end of the first feeding pipe when rotating. During the stirring process, the stirring frame can not only break up the materials discharged from the lower end of the first feeding pipe, so that the vanadium oxide or additive can be quickly integrated into the solvent; it can also break up the larger bubbles formed at the lower end of the first feeding pipe, break the large bubbles into many small bubbles, and use the small bubbles to more evenly drive the raw materials into the solution, thereby promoting the efficiency of integrating the raw materials such as the vanadium oxide or additive into the solvent, and further improving the efficiency and effect of automatic proportioning and mixing of the electrolyte.

[0019] Furthermore, an air guide hopper is sealed and fixedly connected between the tank top cover and the tank cover, the top of the first feed pipe is fixedly and sealedly connected to the lower end of the air guide hopper, the outer side surface of the stirring shaft is fixedly connected to a fan blade at a position corresponding to the inside of the air guide hopper, and the second feed pipe is fixedly and sealedly installed on the tank top cover at a position at the air inlet end of the fan blade.

[0020] By adopting the above technical solution, the fan blades can be used to generate wind force inside the air guide hopper and inject it into the first feed pipe while the driving motor drives the stirring shaft, thereby improving the suction force of the second feed pipe and the third feed pipe during operation. This can reduce the power configuration of the vacuum pump, and effectively ensure that the feeding mechanism can more stably and reliably input the principle of configuring the electrolyte into the tank body, thereby ensuring the stable and reliable automatic proportioning and mixing of the electrolyte.

[0021] Furthermore, a mounting frame is fixedly connected to the inner bottom surface of the tank body, a bearing is fixedly mounted on the mounting frame, and the lower end of the stirring shaft is correspondingly mounted in the bearing.

[0022] By adopting the above technical solution, the bearing can be fixedly installed on the inner bottom surface of the tank body using the mounting frame, and the lower end of the stirring shaft is installed in the bearing to ensure that the stirring shaft can rotate stably and reliably, thereby ensuring the stability and reliability of the stirring mechanism during operation.

[0023] Furthermore, a spiral blade is fixedly connected to the outer surface of the stirring shaft located inside the first feeding pipe.

[0024] By adopting the above technical solution, the spiral blade can be used to promote the movement of materials inside the first feed pipe during the rotation of the stirring shaft. On the one hand, in the process of preparing the electrolyte, the spiral blade and the stirring shaft can be used to rotate forward to promote the vanadium oxide or additive to actively move into the tank body, thereby effectively preventing the first feed pipe from being blocked. On the other hand, when changing the electrolyte formula, the spiral blade and the stirring shaft can be used to rotate in the opposite direction to allow the cleaning liquid inside the tank body to enter the first feed pipe in the opposite direction, so as to clean the first feed pipe, thereby avoiding the mutual influence of raw materials of different formulas, and effectively ensuring the adaptability of preparing different electrolytes.

[0025] Furthermore, a cleaning pipe is fixedly and sealedly connected to the bottom of the tank body, and a third electrically controlled valve is sealedly and fixedly connected to one end of the cleaning pipe away from the tank body, and the third electrically controlled valve is electrically connected to the controller.

[0026] By adopting the above technical solution, the cleaning liquid used for cleaning can be discharged from the bottom of the tank body by using the cleaning pipe, and the third electric control valve is automatically controlled by the controller, so the degree of automation of cleaning the inside of the tank body can be improved, which can avoid direct contact between the staff and the residual raw materials for preparing the electrolyte, thereby improving the safety of the electrolyte preparation operation.

[0027] Beneficial effects achieved:

[0028] The automatic electrolyte proportioning and mixing device disclosed in the present application can realize continuous and automated production, greatly improve production efficiency, and reduce labor costs and production costs. The present application can not only automatically control the quantitative pump to quantitatively input the solvent for configuring the electrolyte into the tank body through the input pipe by using the controller, but also control the proportioning mechanism to automatically proportion the solvent, vanadium oxide and additive according to the set measurement, and can also automatically control the feeding mechanism to put the vanadium oxide and additive into the tank body for mixing, and can also automatically control the stirring mechanism to stir and mix the solvent, vanadium oxide and additive, so that the composition and proportion of the electrolyte can be strictly controlled and the electrolyte proportioning and mixing can be automatically completed, and accurate control and automated operation are achieved in the electrolyte preparation process, avoiding the adverse effects caused by manual operation, ensuring the quality and performance of each batch of electrolyte, and thus ensuring the performance and quality of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of the structural decomposition of an embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the internal structure of an embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the structural decomposition of the feeding mechanism part in one embodiment of the present application.

[0033] Figure 5 It is a schematic diagram of the structural decomposition of the proportioning mechanism part in one embodiment of the present application.

[0034] Figure 6 It is a schematic diagram of the structural decomposition of the stirring mechanism part in one embodiment of the present application.

[0035] Description of the accompanying drawings: 100, frame; 200, tank body; 201, input pipe; 202, output pipe; 203, first electric control valve; 204, second electric control valve; 205, quantitative pump; 206, cleaning pipe; 207, third electric control valve; 300, feeding mechanism; 301, tank cover; 302, exhaust pipe; 303, vacuum pump; 304, first feeding pipe; 305, second feeding pipe; 306, third feeding pipe; 307, first mounting seat; 308, second mounting seat; 309, electric movable telescopic rod; 400, proportioning mechanism; 401, weighing platform; 402, storage box; 403, storage trough; 500, stirring mechanism; 501, tank top cover; 502, driving motor; 503, stirring shaft; 504, stirring frame; 505, air guide hopper; 506, fan blades; 507, mounting frame; 508, bearing; 509, spiral sheet; 600, moving component; 601, stepping motor; 602, driving gear; 603, driven rack; 604, slide rail; 605, slide trough. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The embodiment of the present application discloses an automatic proportioning and mixing device for electrolyte.

[0040] Please refer to Figure 1 and Figure 2In one embodiment of the present application, an automatic electrolyte proportioning and mixing device includes a frame 100, on which a tank body 200 is fixedly mounted. The tank body 200 is made of a corrosion-resistant material with a certain structural strength, such as stainless steel, glass, etc. The present embodiment is preferably made of stainless steel material by a sealing welding process. The use of stainless steel material can effectively resist the common acid and alkali solutions, organic solvents and various salts in the electrolyte, which greatly guarantees the service life of the preparation tank, and ensures that the electrolyte in the tank will not be contaminated by the corrosion of the tank body, and is suitable for many different types of electrolytes. At the same time, stainless steel has high strength. It can withstand the internal liquid pressure and various external stresses faced by the preparation tank during use, ensure the structural stability of the preparation tank in long-term use, and reduce safety hazards such as deformation and rupture caused by insufficient strength. In addition, stainless steel has good processing performance. It can be easily processed into tanks of various shapes and sizes according to design requirements to meet the needs of electrolyte preparation of different scales. At the same time, its surface is smooth, it is not easy to retain electrolyte, it is easy to clean and maintain, which helps to maintain the cleanliness of the preparation tank and improve the quality of the electrolyte.

[0041] Please refer to Figure 1 and Figure 2 In one embodiment of the present application, an input pipe 201 is sealed and connected to the outer side of the tank body 200 near its top by welding, and an output pipe 202 is sealed and connected to the outer side of the tank body 200 near its bottom by welding. Both the input pipe 201 and the output pipe 202 are made of the same stainless steel material as the tank body 200. The end of the input pipe 201 away from the tank body 200 is sealed and fixedly connected to the first electric-controlled valve 203, and the end of the output pipe 202 away from the tank body 200 is sealed and fixedly connected to the second electric-controlled valve 204. The end of the first electric-controlled valve 203 away from the input pipe 201 is sealed and connected to a metering pump 205. The metering pump 205 is sealed and fixedly connected to a container storing a configured electrolyte solvent. The metering pump 205 is electrically connected to a controller, and the controller is electrically connected to the first electric-controlled valve 203 and the second electric-controlled valve 204. The controller can control the first electric-controlled valve 203 and the second electric-controlled valve 204 to open or close through program setting. The controller can also automatically control the quantitative pump 205 according to the program setting to quantitatively input the solvent for configuring the electrolyte into the tank body 200 through the input pipe 201.

[0042] In a specific embodiment of the present application, the quantitative pump 205 adopts a ceramic metering pump, which has a high-precision metering capability and can not only accurately control the output of the electrolyte. Moreover, the ceramic material also has good corrosion resistance, which can effectively resist the erosion of the electrolyte and is suitable for various types of electrolytes. Its self-lubricating properties make the pump run more smoothly, reducing wear and maintenance costs. In terms of structure, the check valve design of the ceramic metering pump can ensure the unidirectional flow of the liquid, improving the accuracy and stability of the measurement.

[0043] It can be understood that in other specific embodiments of the present application, the metering pump 205 can also adopt an electric bellows pump, a plunger metering pump, a gear metering pump, a diaphragm metering pump, etc., which can not only stably and reliably achieve accurate quantitative delivery, but also effectively resist the corrosion damage caused by the acidity and alkalinity in the electrolyte raw materials.

[0044] Please refer to Figure 1 and Figure 2 In one embodiment of the present application, the top of the tank body 200 is sealed and connected with a feeding mechanism 300, and the outside of the tank body 200 is provided with a proportioning mechanism 400 corresponding to the feeding mechanism 300, and the inside of the tank body 200 is provided with a stirring mechanism 500, and the feeding mechanism 300, the proportioning mechanism 400, and the stirring mechanism 500 are all electrically connected to the controller. The controller can automatically control the proportioning mechanism 400 to proportion the solvent, vanadium oxide and additive according to the set measurement through program setting, and can also automatically control the feeding mechanism 300 to put the vanadium oxide and additive into the tank body 200 for mixing, and can also automatically control the stirring mechanism 500 to stir and mix the solvent, vanadium oxide and additive, so that the composition and proportion of the electrolyte can be strictly controlled and the electrolyte proportioning and mixing can be automatically completed, so as to realize accurate control and automatic operation in the electrolyte preparation process, avoid the adverse effects caused by manual operation, ensure the quality and performance of each batch of electrolyte, and then ensure the performance and quality of the battery.

[0045] In one embodiment of the present application, vanadium oxides include vanadium trioxide, vanadium tetroxide, etc. The vanadium ions in the vanadium oxides have multiple valence states, such as +3 valence and +4 valence, etc. These vanadium ions of different valence states can be converted into each other during the charge and discharge process to achieve the storage and release of electrical energy. This variability in valence state makes the active substance vanadium ion have high electrochemical activity and can effectively participate in the redox reaction of the battery. At the same time, vanadium trioxide and vanadium tetroxide have good chemical stability in the electrolyte, and can maintain a relatively stable structure during the charge and discharge cycle, thereby ensuring the cycle life of the battery. After multiple charge and discharge, its performance decays relatively slowly, so that the vanadium battery has a long service life.

[0046] Please refer to Figure 3 and Figure 4 In one embodiment of the present application, the feeding mechanism 300 includes a tank cover 301, which is detachably and sealedly connected to the top of the tank body 200, and a vacuum pipe 302 is sealed and fixedly connected to the tank cover 301. The end of the vacuum pipe 302 away from the tank cover 301 is sealed and connected to a vacuum pump 303, and the vacuum pump 303 is electrically connected to the controller. A first feeding pipe 304 is sealed and fixedly connected to the inside of the tank body 200 on the tank cover 301, and a second feeding pipe 305 is sealed and fixedly connected to the outside of the tank body 200 on the tank cover 301. The second feeding pipe 305 is sealed and connected to the first feeding pipe 304, and the end of the second feeding pipe 305 away from the tank cover 301 is connected to the proportioning mechanism 400. The vacuum pump 303 is used to continuously draw a vacuum inside the tank body 200, and a sealed negative pressure chamber is formed inside the tank body 200. The external air enters the tank body 200 through the second feed pipe 305 and the first feed pipe 304. When the outer end of the second feed pipe 305 is close to the proportioning mechanism 400, the air will drive the vanadium oxide and additives on the proportioning mechanism 400 into the tank body 200 through the second feed pipe 305 and the first feed pipe 304 during the flow of air. The external air enters the solvent and forms bubbles that float upward and are discharged through the exhaust pipe 302. In the process of floating upward, the bubbles will form bubbles to stir the vanadium oxide and additives in the solvent, thereby promoting the vanadium oxide and additives to dissolve rapidly in the solvent.

[0047] Please refer to Figure 3 and Figure 4 In one embodiment of the present application, the inner sealing sliding connection of the second feed pipe 305 is connected to the third feed pipe 306, the outer side of the second feed pipe 305 is fixedly connected to the first mounting seat 307, the outer side of the third feed pipe 306 is fixedly connected to the second mounting seat 308, the first mounting seat 307 is fixedly connected to the electric telescopic rod 309, the telescopic end of the electric telescopic rod 309 is fixedly connected to the second mounting seat 308, and the electric telescopic rod 309 is electrically connected to the controller. The controller can control the electric telescopic rod 309 to extend and retract. During the extension and retraction process, the electric telescopic rod 309 can drive the third feed pipe 306 to move up and down through the second mounting seat 308, so as to adjust the distance between the lower end of the third feed pipe 306 and the proportioning mechanism 400. This can ensure that the vanadium oxide and the additive can be reliably sucked into the third feed pipe 306, and the feeding speed of the vanadium oxide and the additive into the tank body 200 can be adjusted, and the third feed pipe 306 can be completely away from the proportioning mechanism 400 to prevent the vanadium oxide and the additive from entering the tank body 200.

[0048] Please refer to Figure 2 and Figure 5In one embodiment of the present application, the proportioning mechanism 400 includes a weighing platform 401, which is electrically connected to the controller. A material storage box 402 is placed on the weighing platform 401, and a plurality of parallel material storage slots 403 are provided on the material storage box 402. The powdered vanadium oxide and additive are stored in the material storage slots 403 respectively. A moving component 600 is provided on the weighing platform 401, and the moving component 600 is electrically connected to the controller. The moving component 600 is used to move the weighing platform 401 so that the corresponding material storage slot 403 is aligned with the feeding mechanism 300. The weighing platform 401 can monitor the total weight of the vanadium oxide and additive stored in the material storage box 402 in real time, and convert the weight signal into an electrical signal and transmit it to the controller in real time. The controller can automatically control the moving component 600 to drive the weighing platform 401 to move according to the change of the weight signal, thereby realizing the switching of the raw materials sucked by the feeding mechanism 300, so that the accurate proportioning of multiple raw materials can be realized through the weight change.

[0049] Please refer to Figure 2 and Figure 5 In one embodiment of the present application, the moving component 600 includes a stepper motor 601, the stepper motor 601 is electrically connected to a controller, the stepper motor 601 is fixedly connected to the tank body 200 through a frame 100, a driving gear 602 is fixedly installed on the stepper motor 601, a driven rack 603 is fixedly installed on the weighing platform 401 corresponding to the driving gear 602, the driven rack 603 is meshed with the driving gear 602, a slide rail 604 is fixedly connected to the frame 100 outside the tank body 200, a slide groove 605 is provided on the weighing platform 401 corresponding to the slide rail 604, and the weighing platform 401 is slidably connected to the slide rail 604 through the slide groove 605. The controller can control the stepper motor 601 to rotate forward and reverse. During the rotation, the stepper motor 601 can drive the driving gear 602 to rotate. During the rotation, the driving gear 602 will drive the driven rack 603 and the weighing platform 401 to move along the slide rail 604, thereby realizing the switching of the raw materials sucked in by the feeding mechanism 300.

[0050] Please refer to Figure 2 and Figure 5In one embodiment of the present application, the stirring mechanism 500 includes a tank top cover 501, which is detachably sealed and connected to the tank cover 301. A driving motor 502 is fixedly installed on the tank top cover 501. A stirring shaft 503 is coaxially fixedly connected to the output shaft of the driving motor 502. The stirring shaft 503 is inserted into the first feed pipe 304, and a gap is left between the outer side surface of the stirring shaft 503 and the inner wall surface of the first feed pipe 304. The lower end of the stirring shaft 503 is fixedly connected to a stirring frame 504 at a position corresponding to the outside of the lower end of the first feed pipe 304. The controller can control the driving motor 502 to rotate forward and backward. The driving motor 502 can drive the stirring shaft 503 to rotate during the forward rotation. When the stirring shaft 503 rotates, it will drive the stirring frame 504 to stir the outside of the lower end of the first feeding pipe 304. During the stirring process, the stirring frame 504 can not only break up the materials discharged from the lower end of the first feeding pipe 304, so that the vanadium oxide or additive can be quickly integrated into the solvent; it can also break up the larger bubbles formed at the lower end of the first feeding pipe 304, break the large bubbles into many small bubbles, and use the small bubbles to more evenly drive the raw materials into the solution, thereby promoting the efficiency of integrating raw materials such as vanadium oxide or additives into the solvent, and further improving the efficiency and effect of automatic proportioning and mixing of the electrolyte.

[0051] Please refer to Figure 3 and Figure 6 In one embodiment of the present application, an air guide hopper 505 is sealed and fixedly connected between the tank top cover 501 and the tank cover 301, the top of the first feed pipe 304 is fixedly sealed and connected to the lower end of the air guide hopper 505, the outer side surface of the stirring shaft 503 is fixedly connected to the position corresponding to the position inside the air guide hopper 505, and the second feed pipe 305 is fixedly sealed and installed on the tank top cover 501 at the position of the air inlet end of the fan blade 506. In the process of the driving motor 502 driving the stirring shaft 503 to rotate forward, the fan blade 506 will form wind force inside the air guide hopper 505 to pour into the first feed pipe 304, thereby improving the suction force of the second feed pipe 305 and the third feed pipe 306 during the working process, so that the power configuration of the vacuum pump 303 can be reduced, and it is effectively ensured that the feeding mechanism 300 can more stably and reliably input the principle of configuring the electrolyte into the tank body 200, thereby ensuring the stable and reliable automatic proportioning and mixing of the electrolyte.

[0052] Please refer to Figure 3 and Figure 6In one embodiment of the present application, a mounting frame 507 is fixedly connected to the inner bottom surface of the tank body 200, a bearing 508 is fixedly mounted on the mounting frame 507, and the lower end of the stirring shaft 503 is correspondingly mounted in the bearing 508. The mounting frame 507 can fix the bearing 508 on the inner bottom surface of the tank body 200, and the lower end of the stirring shaft 503 is mounted in the bearing 508 to ensure that the stirring shaft 503 can rotate stably and reliably, thereby ensuring the stability and reliability of the stirring mechanism 500 during operation.

[0053] Please refer to Figure 3 and Figure 6 In one embodiment of the present application, a spiral blade 509 is fixedly connected to the outer surface of the stirring shaft 503 located inside the first feed pipe 304. The spiral blade 509 can promote the movement of materials inside the first feed pipe 304 during the rotation of the stirring shaft 503. On the one hand, in the process of configuring the electrolyte, the spiral blade 509 and the stirring shaft 503 can be rotated in the positive direction by using this design to promote the vanadium oxide or additive to actively move into the tank body 200, thereby effectively preventing the first feed pipe 304 from being blocked. On the other hand, when changing the electrolyte formula, the spiral blade 509 and the stirring shaft 503 can be rotated in the reverse direction by using this design to allow the cleaning liquid inside the tank body 200 to enter the first feed pipe 304 in the reverse direction, so as to facilitate the cleaning of the first feed pipe 304, thereby avoiding the mutual influence of raw materials of different formulas, and effectively ensuring the adaptability of preparing different electrolytes.

[0054] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, a cleaning pipe 206 is fixedly and sealedly connected to the bottom of the tank body 200, and a third electrically controlled valve 207 is sealedly and fixedly connected to one end of the cleaning pipe 206 away from the tank body 200, and the third electrically controlled valve 207 is electrically connected to the controller. The cleaning pipe 206 can discharge the cleaning liquid used for cleaning from the bottom of the tank body 200, and the third electrically controlled valve 207 is automatically controlled by the controller, which can improve the automation of cleaning the inside of the tank body 200, thereby avoiding direct contact between the staff and the residual raw materials for preparing the electrolyte, and improving the safety of the electrolyte preparation operation.

[0055] In summary, the automatic electrolyte proportioning and mixing device disclosed in the present application can not only ensure the quality and performance of each batch of electrolyte, but also realize the continuous and automated production of electrolyte, greatly improve production efficiency, and reduce labor costs and production costs.

[0056] The implementation principle of an automatic electrolyte mixing device in the embodiment of the present application is as follows:

[0057] First, the powdered raw materials (vanadium trioxide and vanadium pentoxide and various additives) used to prepare the electrolyte are stored in the corresponding storage tanks 403 respectively, and the initial total weight of the raw materials stored in the storage box 402 is transmitted to the controller in the form of an electrical signal through the weighing platform 401, and the controller records the initial total weight. The controller then automatically controls the quantitative pump 205 to quantitatively input the solvent for configuring the electrolyte into the tank body 200 through the input pipe 201, and at the same time, the vacuum pump 303 is used to continuously draw a vacuum into the tank body 200, so that a sealed negative pressure chamber is formed inside the tank body 200, and the external air enters the tank body 200 through the second feed pipe 305 and the first feed pipe 304. When the solvent overflows the lower end of the first feed pipe 304, the external air forms bubbles in the solvent, and then the third feed pipe 306 is driven by the electric telescopic rod 309 to move downward to an appropriate height above the storage tank 403. In the process of air flowing into the third feed pipe 306, the powdered raw materials in the storage tank 403 are driven to enter the tank body 200 through the second feed pipe 305 and the first feed pipe 304. During this process, the weighing platform 401 monitors the total weight of the raw materials stored in the storage box 402 in real time, and converts the weight signal into an electrical signal and transmits it to the controller in real time. When the first raw material reaches the set ratio, the controller first controls the electric telescopic rod 309 to drive the third feed pipe 306 to move upward to a position away from the storage tank 403, stops absorbing the raw material, and then automatically controls the stepper motor 601 to drive the weighing platform 401 to move to the next working position along the slide rail 604, so that the storage tank 403 storing the second raw material moves to the bottom of the third feed pipe 306, and then controls the electric telescopic rod 309 to drive the third feed pipe 306 to move downward to a position close to the storage tank 403, and continues to absorb the raw material, and so on, until the ratio of the raw materials is completed. After the electrolyte is mixed, the second electric control valve 204 is controlled by the controller to open, and the electrolyte can be conveniently output through the output pipe 202.

[0058] In this process, when the solvent flows over the lower end of the first feed pipe 304, the controller automatically controls the drive motor 502 to rotate forward, and the drive motor 502 drives the stirring shaft 503 to rotate forward. When the stirring shaft 503 rotates forward, it drives the stirring frame 504 to stir the outer portion of the lower end of the first feed pipe 304. During the stirring process, the stirring frame 504 breaks up the material discharged from the lower end of the first feed pipe 304, so that the vanadium oxide or additive can be quickly integrated into the solvent. At the same time, it can also break up the larger bubbles formed at the lower end of the first feed pipe 304, and the larger bubbles can be dispersed. The bubbles are broken into numerous small bubbles, which can be used to carry the raw materials into the solution more evenly, thereby promoting the efficiency of integrating raw materials such as vanadium oxide or additives into the solvent. During the forward rotation of the stirring shaft 503, the fan blades 506 will form wind force inside the air guide hopper 505 to inject wind into the first feed pipe 304, thereby improving the suction force of the second feed pipe 305 and the third feed pipe 306 during operation. At the same time, the spiral blades 509 also promote the downward movement of the material inside the first feed pipe 304 during the rotation of the stirring shaft 503, thereby effectively preventing the first feed pipe 304 from being blocked.

[0059] When the electrolyte formula needs to be changed, the cleaning liquid is first input into the tank body 200 through the metering pump 205 and the input pipe 201, and the controller automatically controls the drive motor 502 to rotate in the opposite direction. The drive motor 502 will drive the stirring shaft 503 and the spiral blade 509 to rotate in the opposite direction. The reverse rotation of the spiral blade 509 and the stirring shaft 503 can make the cleaning liquid inside the tank body 200 reversely enter the first feed pipe 304, so as to clean the first feed pipe 304, thereby avoiding the mutual influence of raw materials of different formulas. After cleaning is completed, the third electric control valve 207 is controlled to open by the controller, and the cleaning liquid used for cleaning can be discharged from the bottom of the tank body 200, thereby ensuring the ratio quality of the electrolyte after the formula is changed.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic electrolyte mixing device, characterized in that: The invention comprises a tank body (200), wherein an input pipe (201) is fixedly and sealedly connected to a position of the outer side of the tank body (200) near the top thereof, an output pipe (202) is fixedly and sealedly connected to a position of the outer side of the tank body (200) near the bottom thereof, an end of the input pipe (201) away from the tank body (200) is fixedly and sealedly connected to a first electrically controlled valve (203), an end of the output pipe (202) away from the tank body (200) is fixedly and sealedly connected to a second electrically controlled valve (204), and an end of the first electrically controlled valve (203) away from the input pipe (201) is fixedly and sealedly connected to a first electrically controlled valve (203). A metering pump (205) is connected, the metering pump (205) is sealed and fixedly connected to a container storing a configured electrolyte solvent, the metering pump (205) is electrically connected to a controller, the top of the tank body (200) is sealed and connected to a feeding mechanism (300), the outside of the tank body (200) is provided with a proportioning mechanism (400) corresponding to the feeding mechanism (300), the inside of the tank body (200) is provided with a stirring mechanism (500), and the feeding mechanism (300), the proportioning mechanism (400), and the stirring mechanism (500) are all electrically connected to the controller; The feeding mechanism (300) comprises a tank cover (301), the tank cover (301) being detachably sealed and connected to the top of the tank body (200), an exhaust pipe (302) being sealed and fixedly connected to the tank cover (301), an end of the exhaust pipe (302) away from the tank cover (301) being sealed and connected to a vacuum pump (303), the vacuum pump (303) being electrically connected to the controller, a first feeding pipe (304) being sealed and fixedly connected to the tank cover (301) located inside the tank body (200), a second feeding pipe (305) being sealed and fixedly connected to the tank cover (301) located outside the tank body (200), the second feeding pipe (305) being sealed and connected to the first feeding pipe (304), and an end of the second feeding pipe (305) away from the tank cover (301) being connected to the proportioning mechanism (400); The interior of the tank body (200) is evacuated by using a vacuum pump (303), and external air enters the interior of the tank body (200) through the second feed pipe (305) and the first feed pipe (304). When the solvent flows over the lower end of the first feed pipe (304), the external air forms bubbles in the solvent.

2. The automatic electrolyte mixing device according to claim 1, characterized in that: The interior of the second feed pipe (305) is sealingly and slidably connected to the third feed pipe (306); the outer side of the second feed pipe (305) is fixedly connected to the first mounting seat (307); the outer side of the third feed pipe (306) is fixedly connected to the second mounting seat (308); the first mounting seat (307) is fixedly connected to an electric telescopic rod (309); the telescopic end of the electric telescopic rod (309) is fixedly connected to the second mounting seat (308); and the electric telescopic rod (309) is electrically connected to the controller.

3. The automatic electrolyte mixing device according to claim 1, characterized in that: The proportioning mechanism (400) comprises a weighing platform (401), the weighing platform (401) being electrically connected to the controller, a material storage box (402) being placed on the weighing platform (401), a plurality of material storage slots (403) being arranged in parallel being provided on the material storage box (402), powdered vanadium oxide and additives being stored in the material storage slots (403) respectively, a moving component (600) being provided on the weighing platform (401), the moving component (600) being electrically connected to the controller, and the moving component (600) being used to move the weighing platform (401) so that the corresponding material storage slots (403) are aligned with the feeding mechanism (300).

4. The automatic electrolyte mixing device according to claim 3, characterized in that: The moving component (600) comprises a stepper motor (601), the stepper motor (601) is electrically connected to the controller, the stepper motor (601) is fixedly arranged on the tank body (200), a driving gear (602) is fixedly installed on the stepper motor (601), a driven rack (603) is fixedly installed on the weighing platform (401) corresponding to the driving gear (602), the driven rack (603) is meshed with the driving gear (602), a slide rail (604) is fixedly arranged on the outside of the tank body (200), a slide groove (605) is provided on the weighing platform (401) corresponding to the slide rail (604), and the weighing platform (401) is slidably connected to the slide rail (604) through the slide groove (605).

5. The automatic electrolyte mixing device according to claim 1, characterized in that: The stirring mechanism (500) comprises a tank top cover (501), the tank top cover (501) being detachably sealed and connected to the tank cover (301), a driving motor (502) being fixedly mounted on the tank top cover (501), a stirring shaft (503) being coaxially fixedly connected to an output shaft of the driving motor (502), the stirring shaft (503) being inserted into the first feeding pipe (304), and a stirring frame (504) being fixedly connected to the lower end portion of the stirring shaft (503) at a position corresponding to the outside of the lower end of the first feeding pipe (304).

6. The automatic electrolyte mixing device according to claim 5, characterized in that: An air guide hopper (505) is sealed and fixedly connected between the tank top cover (501) and the tank cover (301); the top of the first feeding pipe (304) is fixed and sealedly connected to the lower end of the air guide hopper (505); the outer side surface of the stirring shaft (503) is fixedly connected to a fan blade (506) at a position corresponding to the inside of the air guide hopper (505); and the second feeding pipe (305) is fixed and sealedly mounted on the tank top cover (501) at a position at the air inlet end of the fan blade (506).

7. The automatic electrolyte mixing device according to claim 5, characterized in that: A mounting frame (507) is fixedly connected to the inner bottom surface of the tank body (200), a bearing (508) is fixedly mounted on the mounting frame (507), and the lower end of the stirring shaft (503) is correspondingly mounted in the bearing (508).

8. The automatic electrolyte mixing device according to claim 7, characterized in that: The stirring shaft (503) is located inside the first feeding pipe (304) and is fixedly connected to a spiral blade (509) on its outer surface.

9. The automatic electrolyte mixing device according to any one of claims 1 to 8, characterized in that: The bottom of the tank body (200) is fixedly and sealedly connected to a cleaning pipe (206); one end of the cleaning pipe (206) away from the tank body (200) is sealedly and fixedly connected to a third electrically controlled valve (207); and the third electrically controlled valve (207) is electrically connected to the controller.

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