A liquid pool condensing device for electrolyte

Abstract

The utility model discloses a kind of electrolyte's liquid pool condensing device, including electrolyte plating liquid pool, condensing plate and mould temperature machine;The top liquid pool mouth of the electrolyte plating liquid pool is covered with condensing plate;The condensing plate is equipped with condensing pipe and cooling fin;The input end of the condensing pipe is communicated with the output end of mould temperature machine, and the output end of condensing pipe is communicated with the input end of mould temperature machine;The cooling fin is abutted with condensing pipe, and cooling fin is arranged in the inside of electrolyte plating liquid pool;The mould temperature machine is used to output low-temperature liquid into condensing pipe;This scheme can improve condensing efficiency, enhance the adaptability with electrolyte plating liquid pool, realize flexible adjustment, ensure equipment stable operation, reduce electrolyte volatilization loss, improve the stability of lithium supplement process and battery product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of electrolyte condensation, and in particular to a liquid pool condensation device for electrolyte. Background Technology

[0002] During electrochemical lithium replenishment, some of the electrolyte in the plating bath evaporates due to the heat generated by the lithium replenishment reaction and the influence of the ambient temperature. If this evaporated electrolyte is not effectively treated, it will alter the electrolyte composition, affecting the lithium replenishment effect and battery performance. Furthermore, the volatile electrolyte may pollute the production environment and even pose safety hazards.

[0003] In summary, the main problems with the existing technology are as follows:

[0004] 1. The electrolyte in the plating bath is prone to volatile gas (containing corrosive substances such as hydrofluoric acid), which may overflow into the equipment. When the gas reaches a certain concentration, it will corrode the electrical components in the equipment.

[0005] 2. The electrolyte in the plating bath is prone to evaporation, resulting in waste;

[0006] 3. The space available for using the equipment is limited;

[0007] Therefore, in order to solve the above problems, existing technologies have been improved to some extent, but many problems still exist, as follows:

[0008] 1. A sealing plate is designed directly above the plating bath, with only the conveyor belt opening reserved to reduce the open area; In this case, the conditions for converting gas into liquid energy were not met, the condensation efficiency was low, and the volatile gas could not be condensed in time, and the gas concentration in the equipment would rise within a certain period of time; Moreover, as the usage time increased, the sealing plate lost its condensation function and could not quickly and effectively condense and recover the volatile electrolyte.

[0009] 2. A negative pressure suction hood is designed directly above the plating bath to collect the volatilized gases through a negative pressure pipeline to an external condensation system. After separation and condensation, the condensed liquid returns to the electrolyte pool, while the remaining gases are returned to the equipment or discharged externally. However, this design has several drawbacks: First, it requires a large space, and the equipment space is limited, leaving no extra space for negative pressure pipelines and condensed liquid return pipelines, making installation and maintenance inconvenient. Second, the equipment is filled with inert gas, and the negative pressure suction hood will also draw away this inert gas, resulting in waste. Third, the gases volatilized in the pool are flammable and explosive, and the continuous circulation of the negative pressure pipeline system poses a safety risk. Fourth, blockages are prone to occur during the condensation process, and some gases may condense into liquid during transmission through the negative pressure pipeline, remaining in the pipeline. Over time, this accumulated liquid will flow back into the electrolyte pool, contaminating the electrolyte.

[0010] Therefore, developing a condensation device for the electrolyte plating bath of an electrochemical lithium replenishment equipment that can instantly condense, is safe and stable, highly efficient and energy-saving, and can be flexibly built-in is of great practical significance. Utility Model Content

[0011] The purpose of this invention is to provide a liquid pool condensation device for electrolyte, so as to improve condensation efficiency, enhance compatibility with electrolyte plating bath, achieve flexible adjustment, ensure stable operation of equipment, reduce electrolyte evaporation loss, improve the stability of lithium replenishment process and battery product quality.

[0012] To address the aforementioned technical problems, this utility model provides a liquid pool condensation device for electrolyte, comprising an electrolyte plating pool, a condensing plate, and a mold temperature controller; the condensing plate covers the top opening of the electrolyte plating pool; the condensing plate is provided with a condensing tube and heat dissipation fins; the input end of the condensing tube is connected to the output end of the mold temperature controller, and the output end of the condensing tube is connected to the input end of the mold temperature controller; the heat dissipation fins abut against the condensing tube and are disposed inside the electrolyte plating pool; the mold temperature controller is used to output low-temperature liquid into the condensing tube.

[0013] In one embodiment, the condenser tubes are arranged in an S-shaped trajectory, and the heat dissipation fins are abutted on multiple tube segments at different positions.

[0014] In one embodiment, both the input and output ends of the condenser are connected to flow detection sensors.

[0015] In one embodiment, a temperature detection sensor is connected to the output end of the condenser.

[0016] In one embodiment, pressure sensors are connected to both the input and output ends of the condenser.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. Real-time condensation: The heat dissipation fins of this condenser plate are designed inside the electrolyte plating bath, so the condensation process can be completed inside the electrolyte plating bath. It can quickly condense and recover the evaporated electrolyte, effectively reduce electrolyte loss, ensure the stability of electrolyte composition, and improve lithium replenishment effect and battery performance.

[0019] 2. Safety and stability: The evaporation and condensation of the electrolyte occur inside the electrolyte plating bath, effectively preventing the volatilized gases from polluting the external environment and corroding external electrical components, thereby reducing safety risks and providing safety protection; at the same time, it is not affected by external factors.

[0020] 3. High efficiency and energy saving: The process of electrolyte evaporation and condensation occurs inside the electrolyte plating bath, without any other mixtures mixed in. The condensed vapor can be recovered into the electrolyte plating bath without a complicated separation process, reducing electrolyte waste and saving energy and increasing efficiency.

[0021] 4. Flexible built-in: Other condensation systems are relatively standardized and cannot be customized to meet special circumstances, and they occupy a large area; while this liquid pool condensation device can be designed to meet the specific environment, making full use of the equipment space, and is highly flexible and adaptable.

[0022] 5. Simplified Design: Compared with other condensation systems, this liquid pool condensation device simplifies the steps of steam collection module, separation module, and condensed liquid collection and return to the plating solution pool module. On the one hand, it reduces manufacturing costs, and on the other hand, it reduces the installation of parts, reduces the occurrence of blockages and other failures, extends the service life of the equipment, and reduces maintenance costs. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model;

[0025] Figure 2 yes Figure 1 A schematic diagram of the condenser plate structure;

[0026] Figure 3 yes Figure 2 A schematic diagram of the condenser tube structure.

[0027] The attached figures are labeled as follows:

[0028] 10. Electrolyte plating bath;

[0029] 20. Condensing plate; 21. Condensing tube; 22. Heat dissipation fins;

[0030] 30. Mold temperature controller. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0032] This utility model provides a liquid pool condensation device for electrolyte, the implementation of which is as follows: Figures 1 to 3As shown, the system includes an electrolyte plating bath 10, a condenser plate 20, and a mold temperature controller 30. The top opening of the electrolyte plating bath 10 is covered by the condenser plate 20. The condenser plate 20 is provided with a condenser tube 21 and heat dissipation fins 22. The input end of the condenser tube 21 is connected to the output end of the mold temperature controller 30, and the output end of the condenser tube 21 is connected to the input end of the mold temperature controller 30. The heat dissipation fins 22 abut against the condenser tube 21 and are located inside the electrolyte plating bath 10. The mold temperature controller 30 is used to output low-temperature liquid into the condenser tube 21.

[0033] During application, the mold temperature controller 30 outputs a low-temperature liquid (such as heat transfer oil at 0-5°C) into the condenser tube 21. Driven by the pressure pump of the mold temperature controller 30, the liquid flows through the oil guide hose to the stainless steel condenser tube 21 in the condenser plate 20. At this time, the cold oil lowers the temperature of the heat dissipation fins 22 in contact with the condenser tube 21 through the principle of heat transfer. When the gas (temperature of about 60 degrees Celsius) emitted from the liquid in the electrolyte plating bath 10 encounters the lower-temperature heat dissipation fins 22, the gas cools and forms liquid (liquefaction principle). Under the action of gravity, the liquid drips back into the electrolyte plating bath 10. At the same time, according to the principle of energy conversion, the cold oil passing through the condenser plate 20 absorbs the heat released by liquefaction, and its temperature rises. It needs to flow back to the mold temperature controller 30 for cooling, and then flow out to the condenser plate 20 for circulation.

[0034] like Figure 2 and Figure 3 As shown, in this embodiment, the condenser tube 21 is arranged in an S-shaped trajectory, and the condenser tube 21 is placed on multiple tube segments at different positions, all of which are abutted by heat dissipation fins 22.

[0035] Preferably, in this embodiment, both the input and output ends of the condenser tube 21 are connected to flow detection sensors.

[0036] Preferably, in this embodiment, the output end of the condenser tube 21 is connected to a temperature detection sensor.

[0037] Preferably, in this embodiment, pressure detection sensors are connected to both the input and output ends of the condenser tube 21.

[0038] Regarding the aforementioned liquid pool condensation device, the following points should also be noted:

[0039] 1. The mold temperature controller 30 automatically cools according to the set temperature. The temperature of the cold oil flowing out of the mold temperature controller 30 is monitored in real time by the temperature detection sensor built into the mold temperature controller 30 to ensure that the temperature of the flowing out is within the specified range (0~5℃).

[0040] 2. By monitoring the pressure and flow rate of the input and output terminals of the condenser tube 21 in real time, the output pressure of the mold temperature controller 30 can be controlled, and a pressure-holding closed loop can be formed to monitor for oil leakage risks.

[0041] 3. The flow detection sensors at the input and output ends of the condenser tube 21 can monitor the flow of each pipeline in real time, so as to adjust the size of the manual ball valve switch.

[0042] 4. The flow rate of the cooling oil can be controlled in real time by the temperature detection sensor and flow detection sensor at the output end of the condenser tube 21, thereby ensuring the condensation effect.

[0043] 5. The arrangement of the condenser tubes 21 is specially designed, using an S-shaped distribution. Each tube is composed of a single stainless steel tube connected and bent to prevent gaps from forming when multiple tubes are joined, which could lead to oil leakage and contamination of the electrolyte. The condenser tubes 21 are made of metals with good thermal conductivity, such as copper or stainless steel. However, since the electrolyte is corrosive, 316 stainless steel with corrosion resistance is chosen to ensure condensation effect and improve condensation efficiency. Furthermore, heat dissipation fins 22 are welded onto the condenser tubes 21, increasing the condensation area and allowing the evaporating electrolyte to fully contact the condenser tubes 21, thus accelerating the condensation rate.

[0044] 6. Equipped with an independent circulating cooling system, the mold temperature controller 30 stores coolant, and the cooling pump delivers the coolant to the condenser 21 through the connecting pipe. The coolant circulates in the condenser 21, absorbs the heat from the volatilized electrolyte, and then returns to the cooling mold temperature controller 30. It is cooled down by the heat dissipation device in the mold temperature controller 30, and then is delivered to the condenser 21 again to realize the recycling of coolant.

[0045] 7. To adapt to different lithium replenishment conditions, adjustment and control mechanisms can be installed on the liquid pool condensation device. For example, a flow regulating valve can be installed on the cooling pump pipeline. The flow rate of the coolant can be automatically or manually adjusted by the control system according to parameters such as the temperature and evaporation of the electrolyte plating bath 10, thereby adjusting the condensation efficiency. At the same time, temperature and pressure sensors are installed in the condensation plate 20 to monitor the temperature and pressure in the condensation plate 20 in real time and feed the data back to the control system so as to adjust the operating parameters of the liquid pool condensation device in a timely manner.

[0046] 8. The liquid pool condensation device is designed with convenient installation and maintenance in mind. The condensation plate 20 adopts a modular design, and the modules are connected by quick-connect components, which facilitates transportation and installation. The condensation plate 20 can be removed as a whole from the electrolyte plating pool 10 for easy cleaning.

[0047] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A liquid pool condensation device for an electrolyte, characterized in that, Includes an electrolyte plating bath, a condenser plate, and a mold temperature controller; The top opening of the electrolyte plating bath is covered by the condenser plate; The condenser plate is provided with a condenser tube and heat dissipation fins; the input end of the condenser tube is connected to the output end of the mold temperature controller, and the output end of the condenser tube is connected to the input end of the mold temperature controller; the heat dissipation fins abut against the condenser tube, and the heat dissipation fins are disposed inside the electrolyte plating bath; The mold temperature controller is used to output low-temperature liquid into the condenser tube.

2. The liquid pool condensation device according to claim 1, characterized in that, The condenser tubes are arranged in an S-shaped trajectory, and the heat dissipation fins are abutted on multiple tube sections at different positions.

3. The liquid pool condensation device according to claim 1, characterized in that, Both the input and output ends of the condenser are connected to flow detection sensors.

4. The liquid pool condensation device according to claim 1, characterized in that, A temperature sensor is connected to the output end of the condenser tube.

5. The liquid pool condensation device according to claim 1, characterized in that, Pressure sensors are connected to both the input and output ends of the condenser tube.

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