Drying oven system and battery production line
By introducing humidity and temperature control devices into the drying oven system, the problem of membrane cracking caused by humidity was solved, the membrane qualification rate was improved, waste heat recovery was achieved, and the drying process was optimized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2026-01-26
- Publication Date
- 2026-04-14
AI Technical Summary
Existing oven systems suffer from reduced membrane yield due to humidity issues, especially after electrode coating, which makes the membranes prone to cracking.
An oven system was designed, comprising an air inlet pipe, a humidity control device, a drying device, an exhaust pipe, and a temperature control device. The humidity control device regulates the humidity of the incoming gas, the drying device dries the membrane, and the temperature control device recovers waste heat and regulates the gas temperature, thereby achieving control of gas humidity and temperature and reducing the probability of membrane cracking.
The diaphragm's pass rate was improved, and the risk of diaphragm cracking was reduced through precise control of humidity and temperature, enabling efficient gas flow and reuse of waste heat.
Smart Images
Figure CN224114468U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, and in particular to an oven system and a battery production line. Background Technology
[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.
[0003] In the manufacturing process of power batteries, electrode coating is a key step. Electrode coating involves uniformly coating the negative electrode slurry or anode slurry onto the substrate using coating methods such as extrusion coating, transfer coating, or spraying. Simultaneously, the substrate is dried in a negative pressure, high-temperature environment within an oven system to remove the solvent from the slurry, resulting in solid powder that adheres to the substrate.
[0004] The oven system includes an exhaust pipe, an air inlet pipe, and an oven unit. The exhaust pipe discharges the hot air from the oven unit, and the air inlet pipe provides fresh air to the oven unit. This type of oven system may not be conducive to improving the yield of membranes due to humidity issues. The membranes are products obtained after electrode coating. Utility Model Content
[0005] In view of the above problems, this application provides an oven system and a battery production line, which solves the problem that the yield of films is reduced due to humidity issues in the oven system of the prior art.
[0006] A first aspect of the embodiments of this application provides an oven system comprising:
[0007] Intake pipe;
[0008] A humidity control device is connected to the air intake pipe and is used to regulate the humidity of the gas entering through the air intake pipe.
[0009] A drying device is used to receive the gas discharged from the humidity control device and use the discharged gas to dry the diaphragm. The gas discharged from the humidity control device has a humidity within a predetermined range.
[0010] The first humidity detection device is used to detect the humidity of the gas discharged from the drying device.
[0011] A temperature control device is provided for cooling at least a portion of the gas discharged from the drying unit and heating the fresh air entering the device; and
[0012] The exhaust pipe is connected to the drying device;
[0013] The air intake system includes a first air intake pipe and a second air intake pipe. One end of the first air intake pipe is for fresh air to enter, and the other end of the first air intake pipe is connected to a humidity control device. The second air intake pipe is connected to the exhaust system.
[0014] The second air inlet pipe is connected to the exhaust pipe at the upstream side of the temperature control device. The second air inlet pipe is connected to the first air inlet pipe. The second air inlet pipe is used to introduce the gas discharged from the exhaust pipe into the drying device. The connection between the second air inlet pipe and the first air inlet pipe is located between the temperature control device and the humidity control device.
[0015] The oven system of this application includes an air inlet pipe, a humidity regulating device, a first humidity detection device, a drying device, and an exhaust pipe. The humidity regulating device is connected to the air inlet pipe and is used to regulate the humidity of the gas entering through the air inlet pipe. The first humidity detection device is used to detect the humidity of the gas discharged from the drying device. The drying device is used to receive the gas discharged from the humidity regulating device and to dry the membrane. The gas discharged from the humidity regulating device has a humidity within a predetermined range. The exhaust pipe is connected to the drying device, so that the humidity of the gas entering from the air inlet pipe can be regulated by the humidity regulating device, so that the gas entering the drying device has a humidity within a predetermined range, thereby drying the membrane, reducing the probability of membrane cracking, and realizing the flow of gas into and out of the drying device, thus improving the membrane yield.
[0016] The oven system according to this application also has the following additional technical features.
[0017] In some embodiments of this application, the temperature control device includes a waste heat recovery unit.
[0018] The embodiments of this application, by including a waste heat recovery device in the temperature regulation device, can realize the recovery of heat from at least a portion of the gas discharged from the drying device and exchange heat with fresh air, thereby realizing the heat exchange between at least a portion of the gas discharged from the drying device and the fresh air.
[0019] In some embodiments of this application, the humidity regulating device includes:
[0020] Water tanks are used to store water.
[0021] The spray assembly includes a housing and a nozzle. A spray space is formed inside the housing. The spray space is connected to an air inlet pipe and a drying device. The nozzle is used to spray water into the spray space.
[0022] The first pipeline is connected to the water tank and the nozzle respectively;
[0023] The power unit is located on the first pipeline so that water is sprayed out from the nozzle after passing through the first pipeline.
[0024] The embodiments of this application include a humidity regulating device comprising a water tank, a spray assembly, a first pipeline, and a power component. This allows water to be sprayed from the nozzle into the spray space through the first pipeline under the action of the power component, thereby humidifying the gas flowing through the spray air and regulating the humidity of the gas entering the drying device.
[0025] In some embodiments of this application, the first pipeline is disposed through the shell, and the first pipeline includes a first section disposed within the spray space and a second section disposed outside the spray space. The first section and the second section are interconnected, and the nozzle is disposed on the first section and is connected to the first section.
[0026] In the embodiments of this application, a first pipeline is provided through the housing, and the first pipeline includes a first section body provided in the spray space and a second section body provided outside the spray space. The first section body and the second section body are interconnected. The nozzle is provided on the first section body and is connected to the first section body, so that water can flow through the second section body and the first section body in sequence and then be sprayed out from the nozzle, which facilitates the installation of the first pipeline.
[0027] In some embodiments of this application, the humidity regulating device further includes a support member, and the housing and the first segment are respectively connected to the support member.
[0028] The embodiments of this application provide a support member, wherein the shell and the first segment are respectively connected to the support member, thereby fixing the first segment and reducing the probability of the first segment shaking.
[0029] In some embodiments of this application, the humidity regulating device further includes a pressure sensor disposed on the second segment.
[0030] The embodiments of this application, by setting a pressure sensor, wherein the pressure sensor is set on the second section body, can detect the pressure in the first pipeline and realize the detection of the water flow pressure.
[0031] In some embodiments of this application, the humidity regulating device further includes a pressure switch, which is disposed on the second segment.
[0032] The embodiments of this application include a pressure switch, which is located on the second section, so that the opening and closing of the first pipeline can be controlled by the change in water pressure.
[0033] In some embodiments of this application, the humidity regulating device further includes a liquid level sensor, which is located inside the water tank.
[0034] The embodiments of this application include the installation of a liquid level sensor inside the water tank, which can detect the water level in the tank and reduce the probability of the tank running out of water.
[0035] In some embodiments of this application, the humidity regulating device further includes a first filter, and at least one of the second section and the water inlet pipe of the water tank is provided with the first filter.
[0036] The embodiments of this application, by setting a first filter and providing a first filter on at least one of the inlet pipes of the second section and the water tank, can achieve filtration of water entering the water tank and / or water flowing out of the water tank, reducing the probability of water clogging the second section.
[0037] In some embodiments of this application, the humidity regulating device further includes a second filter located at the inlet of the spray space.
[0038] The embodiments of this application, by setting a second filter and placing the second filter at the inlet of the spray space, can filter the gas entering the spray space and reduce the probability of impurities entering the spray space.
[0039] In some embodiments of this application, a first fan is provided on the intake pipe, and / or a second fan is provided on the exhaust pipe.
[0040] The embodiments of this application achieve gas flow within the intake pipe by installing a first fan on the intake pipe. Furthermore, the embodiments of this application achieve gas flow within the exhaust pipe by installing a second fan on the exhaust pipe.
[0041] A second aspect of this application proposes a battery production line, which includes an oven system as described in the above embodiments.
[0042] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description
[0043] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0044] Figure 1 A schematic diagram of the overall structure of an oven system provided in some embodiments of this application;
[0045] Figure 2 for Figure 1The diagram shows the structure of the humidity control device for the oven system.
[0046] The attached figures are labeled as follows:
[0047] 10. Oven system;
[0048] 11. Humidity regulating device; 111. Water tank; 1111. Liquid level sensor; 112. Spray assembly; 1121. Housing; 1122. Spray head; 1123. Spray space; 113. First pipeline; 1131. First section; 1132. Second section; 114. Power component; 115. Support component; 116. Pressure sensor; 117. Pressure switch; 118. First filter; 119. Second filter;
[0049] 12. Temperature control device;
[0050] 13. First humidity detection device;
[0051] 14. Drying device;
[0052] 15. Exhaust pipe; 151. Exhaust valve; 152. Main exhaust pipe; 153. Branch exhaust pipe;
[0053] 16. Second humidity detection device;
[0054] 17. Intake pipe; 171. First intake pipe; 1711. First valve; 172. Second intake pipe; 1722. Second valve; 173. Main pipe; 174. First fan; 175. Second fan; 176. Pre-filter;
[0055] 18. Drainage pipes. Detailed Implementation
[0056] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0058] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0059] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0060] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0061] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).
[0062] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0063] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0064] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.
[0065] In the manufacturing process of power batteries, electrode coating is a key step. Electrode coating involves uniformly coating the negative electrode slurry or anode slurry onto the substrate using coating methods such as extrusion coating, transfer coating, or spraying. Simultaneously, the substrate is dried in a negative pressure, high-temperature environment in an oven to remove the solvent from the slurry, resulting in solid powder that adheres to the substrate.
[0066] The oven system includes an exhaust pipe, an air inlet pipe, and an oven unit. The exhaust pipe discharges the hot air from the oven unit, and the air inlet pipe provides fresh air to the oven unit. This type of oven system is prone to cracking of the coating film on the electrode.
[0067] To address this problem, embodiments of this application propose an oven system. The oven system includes an inlet pipe, a humidity regulating device, a first humidity detection device, a drying device, and an exhaust pipe. The humidity regulating device is connected to the inlet pipe and is used to regulate the humidity of the gas entering through the inlet pipe. The first humidity detection device is used to detect the humidity of the gas discharged from the drying device. The drying device receives the gas discharged from the humidity regulating device and uses it to dry the diaphragm. The gas discharged from the humidity regulating device has a humidity within a predetermined range. The exhaust pipe is connected to the drying device. The humidity regulating device is connected to the inlet pipe and is used to regulate the humidity of the gas entering through the inlet pipe. The humidity of the gas entering through the intake pipe is regulated. The drying device receives the gas discharged from the humidity regulating device and dries the diaphragm. The gas discharged from the humidity regulating device has a humidity within a predetermined range. The first humidity detection device is used to detect the humidity of the gas discharged from the drying device. The exhaust pipe is connected to the drying device, so the humidity of the gas entering through the intake pipe can be regulated by the humidity regulating device, so that the gas entering the drying device has a humidity within a predetermined range, thereby drying the electrode-coated diaphragm, reducing the probability of cracking of the electrode-coated diaphragm, and realizing the flow of gas into the drying device and the discharge from the drying device.
[0068] The oven system in the embodiments of this application can be applied to scenarios where films coated with electrodes are dried, such as drying films coated with anodes or films coated with cathodes.
[0069] The structure of the oven system in this application will now be described in detail with reference to the accompanying drawings.
[0070] A first aspect of the embodiments of this application provides an oven system 10, such as Figure 1 As shown, the oven system 10 includes an air inlet pipe 17, a humidity regulating device 11, a first humidity detection device 13, a drying device 14, and an exhaust pipe 15. The humidity regulating device 11 is connected to the air inlet pipe 17 and is used to regulate the humidity of the gas entering through the air inlet pipe 17. The drying device 14 is used to receive the gas discharged from the humidity regulating device 11 and to dry the diaphragm. The gas discharged from the humidity regulating device 11 has a humidity within a predetermined range. The first humidity detection device 13 is used to detect the humidity of the gas discharged from the drying device 14. The exhaust pipe 15 is connected to the drying device 14.
[0071] It should be noted that the humidity regulating device 11 here is a device for regulating the humidity of the gas; it can be a humidifier to increase the humidity of the gas, or a dehumidifier to decrease the humidity of the gas. The first humidity detection device 13 here can be a humidity sensor or similar product to detect the humidity of the gas. The drying device 14 here can be an oven or similar product, capable of containing the coated membrane and drying the membrane. The inlet pipe 17 and the outlet pipe 15 enable gas to flow into the drying device 14 and gas to exit the drying device 14, respectively.
[0072] It is important to note that the humidity of the gas discharged by the humidity control device 11 can be set within a predetermined range as needed. For example, the predetermined range can be set to a relative humidity of 35%-55%, and the humidity of the gas discharged by the humidity control device 11 will be within this range. This can be achieved by using a controller.
[0073] The oven system 10 of this application includes a humidity regulating device 11, a first humidity detection device 13, an air inlet pipe 17, a drying device 14, and an exhaust pipe 15. The humidity regulating device 11 is connected to the air inlet pipe 17 and is used to regulate the humidity of the gas entering through the air inlet pipe 17. The first humidity detection device 13 is used to detect the humidity of the gas discharged from the drying device 14. The drying device 14 is used to receive the gas discharged from the humidity regulating device 11 and to dry the membrane. The gas discharged from the humidity regulating device 11 has a humidity within a predetermined range. The exhaust pipe 15 is connected to the drying device 14. Thus, the humidity of the gas entering from the air inlet pipe 17 can be regulated by the humidity regulating device 11, so that the gas entering the drying device 14 has a humidity within a predetermined range, thereby drying the membrane, reducing the probability of membrane cracking, and enabling gas to flow into and out of the drying device 14, thereby improving the membrane's pass rate.
[0074] Optionally, such as Figure 1 As shown, the oven system 10 also includes a temperature regulating device 12, which is used to cool at least a portion of the gas discharged from the drying device 14 and to heat the fresh air entering the temperature regulating device 12.
[0075] It should be noted that the gas discharged from the drying device 14 is usually at a high temperature, while the temperature of the fresh air entering the temperature regulating device 12 is low. Therefore, the temperature regulating device 12 used here can be a product such as a heat exchanger to heat up the fresh air entering the temperature regulating device 12, thereby enabling the reuse of at least part of the gas discharged from the drying device 14 and the reuse of the gas's waste heat.
[0076] The temperature control device 12 here can be a heat exchanger or a waste heat recovery device, which can realize the heat exchange between hot air and exhaust gas.
[0077] In the embodiments of this application, by setting a temperature regulating device 12, which is used to cool down at least part of the gas discharged from the drying device 14 and heat up the fresh air entering the temperature regulating device 12, the waste heat of at least part of the gas discharged from the drying device 14 can be recovered, the fresh air can be heated, and the energy consumption of the drying system can be reduced.
[0078] Optionally, the temperature control device 12 includes a waste heat recovery unit.
[0079] The embodiments of this application include a waste heat recovery device in the temperature regulation device 12, which can be used to realize the heat exchange function and realize the heat exchange between the fresh air and at least part of the gas discharged from the drying device 14.
[0080] Optionally, such as Figure 1 As shown, the air intake pipe 17 includes a first air intake pipe 171 and a second air intake pipe 172. The first air intake pipe 171 is provided with a first valve 1711. One end of the first air intake pipe 171 is used for fresh air intake, and the other end of the first air intake pipe 171 is connected to the humidity regulating device 11. The second air intake pipe 172 is provided with a second valve 1722. One end of the second air intake pipe 172 is connected to the exhaust pipe 15, and the other end of the second air intake pipe 172 is connected to the humidity regulating device 11.
[0081] It is understood that the first air inlet pipe 171 and the second air inlet pipe 172 can be connected to and communicate with the humidity control device 11 respectively. The first air inlet pipe 171 is used to provide fresh air to the humidity control device 11, and the second air inlet pipe 172 is used to provide the humidity control device 11 with the gas discharged from the drying device 14. At this time, the second air inlet pipe 172 introduces the gas discharged from the exhaust pipe 15 into the drying device 14, thereby providing two sources of gas entering the humidity control device 11.
[0082] Alternatively, such as Figure 1 As shown, the air intake pipe 17 here also includes a main pipe 173. The first air intake pipe 171, the second air intake pipe 172, and the main pipe 173 can be connected via a three-way valve. The main pipe 173 is connected to and in communication with the humidity regulating device 11. The second air intake pipe 172 receives the gas discharged from the exhaust pipe 15. After entering through the second air intake pipe 172, this gas passes through the main pipe 173 and the humidity regulating device 11 in sequence before entering the drying device 14 for recycling. The embodiments of this application include an air intake pipe 17 comprising a first air intake pipe 171 and a second air intake pipe 172. The first air intake pipe 171 is provided with a first valve 1711 and is connected to fresh air. The second air intake pipe 172 is provided with a second valve 1722 and is connected to the exhaust pipe 15. This allows the air intake pipe 17 to have both fresh air and air discharged from the drying device 14 as its gas source. This enables the reuse of at least a portion of the air discharged from the drying device 14 and facilitates the control of the temperature and humidity of the air in the air intake pipe 17.
[0083] Optionally, such as Figure 1 As shown, the intake pipe 17 is equipped with a first fan 174, and the exhaust pipe 15 is equipped with a second fan 175.
[0084] Specifically, a first fan 174 is provided on the main pipeline 173, which enables the gas entering through the first air inlet pipe 171 and the second air inlet pipe 172 to enter the drying device 14 under the action of the first fan 174, thereby increasing the speed at which the gas enters the drying device 14 and increasing the air pressure of the gas entering the drying device 14.
[0085] In addition, the second fan 175 is located on the exhaust pipe 15. Specifically, the second fan 175 is located on the main exhaust pipe 152, which can accelerate the speed of gas discharge.
[0086] In embodiments of this application, by providing a first fan 174 on the intake pipe 17, the flow of gas within the intake pipe 17 can be achieved. Additionally, in embodiments of this application, by providing a second fan 175 on the exhaust pipe 15, the flow of gas within the exhaust pipe 15 can be achieved.
[0087] Optionally, such as Figure 1 As shown, the connection between the second intake pipe 172 and the exhaust pipe 15 is located upstream of the temperature regulating device 12, and the connection between the second intake pipe 172 and the first intake pipe 171 is located between the temperature regulating device 12 and the humidity regulating device 11.
[0088] In this embodiment of the application, by setting the connection position between the second air inlet pipe 172 and the exhaust pipe 15 on the upstream side of the temperature regulating device 12, the gas discharged from the second air inlet pipe 172 does not need to enter the temperature regulating device 12. Only a portion of the gas discharged from the exhaust pipe 15 needs to enter the temperature regulating device 12, thereby improving the heat exchange efficiency of the temperature regulating device 12. In addition, by setting the connection position between the second air inlet pipe 172 and the first air inlet pipe 171 between the temperature regulating device 12 and the humidity regulating device 11, a pressure difference is simultaneously created between the inlet and outlet of the drying device 14, facilitating the flow of gas within the drying device 14.
[0089] Specifically, the connection point between the second air inlet pipe 172 and the first air inlet pipe 171 is located upstream of the inlet of the first fan 174. At this location, the gas entering through both the second and first air inlet pipes 172 and 171 can be simultaneously driven by the first fan 174, causing all the incoming air to flow and increasing the airflow and pressure entering the humidity regulating device 11. Furthermore, the first fan 174 increases the air pressure and airflow at the inlet of the drying device 14, thereby increasing the pressure difference between the inlet and outlet of the drying device 14 and improving the flow efficiency of the gas within the drying device 14.
[0090] Optionally, such as Figure 2 As shown, the humidity regulating device 11 includes a water tank 111, a spray assembly 112, a first pipeline 113, and a power unit 114. The water tank 111 is used to store water. The spray assembly 112 includes a housing 1121 and a nozzle 1122. A spray space 1123 is formed inside the housing 1121. The spray space 1123 is connected to the air inlet pipeline 17 and the drying device 14, respectively. The nozzle 1122 is used to spray water into the spray space 1123. The first pipeline 113 is connected to the water tank 111 and the nozzle 1122, respectively. The power unit 114 is provided on the first pipeline 113 so that the water source is sprayed out from the nozzle 1122 after passing through the first pipeline 113.
[0091] The power component 114 here can be a pump or motor, which enables water to flow from the water tank 111 to the nozzle 1122. It is understood that the number of nozzles 1122 here can be at least one, such as two or three, and each nozzle 1122 can spray water into the spray space 1123, thereby increasing the uniformity of the humidity of the gas.
[0092] In addition, the spray space 1123 enclosed by the shell 1121 is connected to the air inlet pipe 17, and the spray space 1123 is also connected to the drying device 14, so that the gas can be humidified in the spray space 1123 and then flow to the drying device 14.
[0093] The embodiments of this application include a humidity regulating device 11 comprising a water tank 111, a spray assembly 112, a first pipeline 113, and a power component 114. This allows water to be sprayed from the nozzle 1122 into the spray space 1123 through the first pipeline 113 under the action of the power component 114, thereby humidifying the gas flowing through the spray air and regulating the humidity of the gas entering the drying device 14.
[0094] Optionally, such as Figure 2 As shown, the first pipe 113 is disposed through the housing 1121, and the first pipe 113 includes a first section 1131 disposed in the spray space 1123 and a second section 1132 disposed outside the spray space 1123. The first section 1131 and the second section 1132 are interconnected. The nozzle 1122 is disposed on the first section 1131 and is connected to the first section 1131.
[0095] It should be noted that the first segment 1131 can be a vertically oriented tube structure, and the second segment 1132 can be an L-shaped tube structure or an arc-shaped tube structure, which facilitates the connection of the second segment 1132 with the power component 114.
[0096] Alternatively, the first section 1131 here can also adopt an L-shaped structure, wherein multiple nozzles 1122 are L-shaped and spray the gas from different positions, thereby making the humidity of the gas more uniform.
[0097] exist Figure 2 In the first section 1131, there is a vertical straight structure with three nozzles 1122. The three nozzles 1122 are arranged at intervals along the vertical direction to spray the gas entering the spray space 1123 and increase the humidity of the gas.
[0098] In the embodiments of this application, a first pipe 113 is installed through the housing 1121. The first pipe 113 includes a first section 1131 located inside the spray space 1123 and a second section 1132 located outside the spray space 1123. The first section 1131 and the second section 1132 are interconnected. A nozzle 1122 is installed on the first section 1131 and is connected to the first section 1131. This allows water to flow sequentially through the second section 1132 and the first section 1131 before being sprayed out from the nozzle 1122, facilitating the installation of the first pipe 113.
[0099] Optionally, such as Figure 1 As shown, the humidity regulating device 11 also includes a support member 115, and the housing 1121 and the first section 1131 are respectively connected to the support member 115.
[0100] The number of support members 115 here can be one, two or more. Two support members 115 are arranged at intervals along the vertical direction. The two ends of each support member 115 are connected to the shell 1121 and the first segment 1131 respectively, so as to fix the first segment 1131 and reduce the probability of the first segment 1131 shaking.
[0101] In the embodiments of this application, a support member 115 is provided, wherein the shell 1121 and the first segment 1131 are respectively connected to the support member 115. The support member 115 can fix the first segment 1131 and reduce the probability of the first segment 1131 shaking.
[0102] Alternatively, the support 115 here can be fixed by rope or other means, wherein the two ends of the rope are connected to the first segment 1131 and the housing 1121 respectively, thereby fixing the first segment 1131.
[0103] Optionally, the humidity regulating device 11 also includes a pressure sensor 116, which is disposed on the second segment 1132.
[0104] The pressure sensor 116 here is a device for measuring the pressure of gas or liquid. Its function is to convert the pressure signal into a usable electrical signal output for monitoring, control or recording. The pressure sensor 116 needs to be located outside the spray space 1123. Therefore, the pressure sensor 116 is located on the second section body 1132 here, so that the pressure of the fluid flowing through the second section body 1132 can be detected.
[0105] The embodiments of this application, by setting a pressure sensor 116, wherein the pressure sensor 116 is set on the second section body 1132, can detect the pressure in the first pipeline 113, thereby realizing the detection of the water flow pressure.
[0106] Optionally, the humidity regulating device 11 also includes a pressure switch 117, which is located on the second section body 1132.
[0107] The pressure switch 117 mentioned here mainly converts pressure signals into electrical signals to control the start of the power component 114 and the system pressure control, so that the spraying can be carried out stably.
[0108] In this embodiment, a pressure switch 117 is installed on the second section 1132, allowing the opening and closing of the first pipeline 113 to be controlled by changes in water pressure. Water enters the water tank 111 after passing through the first filter 118 on the inlet pipeline. A level sensor 1111 is used to detect the water level, reducing the likelihood of overheating and damage to the power component 114 due to contamination of the water tank 111. After the humidity regulating device 11 is activated, the water in the water tank 111 passes through the first filter 118 on the second section 1132 and is then pressurized by the power component 114. Once the pressure reaches a certain vertical level, the pressure switch 117 opens, and water is sprayed outward through the nozzle 1122, achieving the effect of humidifying the air in the spray space 1123.
[0109] Optionally, such as Figure 1 As shown, the humidity regulating device 11 also includes a liquid level sensor 1111, which is located inside the water tank 111.
[0110] The liquid level sensor 1111 here is a component used to measure the water level in the water tank 111. It can be a scale structure or other structures.
[0111] The embodiments of this application include a liquid level sensor 1111, which is located inside the water tank 111. This allows the water level in the water tank 111 to be detected, reducing the probability of the water tank 111 being empty. This enables the spray assembly 112 to spray the gas, increasing the humidity of the gas and reducing the risk of damage to the power component 114 due to overheating when the water tank 111 is empty.
[0112] Optionally, such as Figure 1 As shown, the humidity regulating device 11 also includes a first filter 118, and the first filter 118 is provided on at least one of the second section body 1132 and the water inlet pipe of the water tank 111.
[0113] The first filter 118 here can be a filter screen structure to filter large particulate impurities in the water and reduce the chance of the first pipe 113 being blocked.
[0114] The embodiments of this application, by setting a first filter 118 and providing the first filter 118 on at least one of the water inlet pipes of the second section 1132 and the water tank 111, can filter the water entering the water tank 111 and / or the water flowing out of the water tank 111, thereby reducing the probability of water clogging the second section 1132.
[0115] Optionally, such as Figure 1 As shown, the humidity control device 11 also includes a second filter 119, which is located at the inlet of the spray space 1123.
[0116] The second filter 119 here can be a pre-filter 176, which filters particulate matter and impurities in the gas, extends the service life of the oven system 10, reduces the frequency of equipment maintenance, and improves the purification effect on the gas.
[0117] The embodiments of this application, by setting a second filter 119 and placing the second filter 119 at the inlet of the spray space 1123, can filter the gas entering the spray space 1123 and reduce the probability of impurities entering the spray space 1123.
[0118] Optionally, the exhaust pipe 15 includes a main exhaust pipe 152 and a branch exhaust pipe 153. The main exhaust pipe 152 is connected to the branch exhaust pipe 153 and the second intake pipe 172 respectively through a three-way valve. The gas discharged from the branch exhaust pipe 153 flows through the temperature regulating device 12 and is discharged outward. An exhaust valve 151 is provided on the branch exhaust pipe 153. The exhaust valve 151 is located downstream of the temperature regulating device 12, and the flow rate of the gas discharged outward from the branch exhaust pipe 153 can be controlled by the opening degree of the exhaust valve 151.
[0119] Here, the main exhaust pipe 152 is connected to the branch exhaust pipe 153 and the second intake pipe 172 respectively through a three-way valve. This allows the gas discharged from the second intake pipe 172 to not need to enter the temperature regulating device 12, but only the gas discharged from the branch exhaust pipe 153 needs to enter the temperature regulating device 12, thereby improving the heat exchange efficiency of the temperature regulating device 12.
[0120] Optionally, such as Figure 1 As shown, the drying oven system 10 also includes a second humidity detection device 16, which is located downstream of the humidity regulating device 11 and is capable of detecting the humidity of the gas entering the drying device 14.
[0121] The working process of the drying system is described below.
[0122] As mentioned earlier, the humidity control device 11 can achieve a humidity range within a predetermined range by using a controller, such as a common PID controller. The flow rate of fresh air can be adjusted by controlling the opening of the first valve 1711, and the flow rate of gas entering the second air inlet pipe 172 can be adjusted by controlling the opening of the second valve 1722, so that the oven system 10 has a stable humidity range.
[0123] In addition, the drying device 14 here can be formed by multiple drying ovens, each of which has an air inlet branch pipe and an air outlet branch pipe. The air inlet branch pipe is connected to the air inlet pipe 17, and the air outlet branch pipe is connected to the air outlet pipe 15. The gas in the drying device 14 is connected to other external components through the air outlet pipe 15. Some of the high-humidity and hot air generated in the drying device 14 passes through the air outlet pipe 15, and after passing through the temperature regulating device 12, it is discharged to the outside through the air outlet valve 151 to achieve waste heat recovery. Other high-humidity and hot air generated in the drying device 14 enters the main pipe 173 through the second air inlet pipe 172, and then enters the humidity regulating device 11 to achieve the recovery of high-humidity and hot air.
[0124] In addition, after being filtered by the pre-filter 176, the fresh air enters the temperature regulating device 12 and exchanges heat with the hot and humid air that has passed through the temperature regulating device 12, thereby increasing the temperature of the fresh air. The fresh air then enters the humidity regulating device 11 through the main pipe 173. The humidity regulating device 11 can make the incoming gas have a humidity within a predetermined range. The gas with a humidity within the predetermined range enters the drying device 14 to dry the membrane coated on the electrode, thereby realizing the circulation of the gas.
[0125] It should be noted that the opening degrees of the first valve 1711, the second valve 1722, and the exhaust valve 151 are all adjustable. The humidity of the gas in the main pipe 173 of the intake pipe 17 can be adjusted according to the humidity detected by the first humidity detection device 13 and the second humidity detection device 16. For example, when the humidity fed back by the second humidity detection device 16 is used to automatically adjust the opening degree of the exhaust valve 151 and the second valve 1722, some of the high humidity and hot air is discharged after passing through the temperature regulating device 12, and the other part of the high humidity and hot air re-enters the gas circulation process after passing through the second valve 1722. This enables the recycling of some of the high humidity and hot air, keeping the humidity of the gas in the drying device 14 constant. Compared with placing the second intake pipe 172 downstream of the temperature regulating device 12, the temperature regulating device 12 only needs to accept a portion of the high humidity and hot air, reducing the air volume and improving the heat exchange efficiency of the temperature regulating device 12. It also allows the drying device 14 to be in a negative pressure environment, reducing the wind resistance during the exhaust process.
[0126] It should be noted that when the oven system 10 is in the start-up stage, the humidity control device 11 can increase the humidity of the fresh air and adjust it according to the humidity measured by the second humidity detection device 16, so that the humidity of the fresh air is raised to the state when the oven system 10 is in stable production, thereby reducing the probability that the film coated on the electrode sheet will crack due to dryness during the start-up stage because the humidity is too low.
[0127] Optionally, the oven system 10 also includes a drain pipe 18, which is connected to the spray space 1123 and is installed through the housing 1121 to discharge the sprayed water to the outside.
[0128] The control process of the oven system 10 will be described in detail below.
[0129] When the oven system 10 is in the start-up phase, the humidity control device 11 works to increase the humidity of the fresh air, so that the humidity detected by the second humidity detection device 16 is within a predetermined range.
[0130] When the oven system 10 is in normal operation, the humidity regulating device 11 operates, and the humidity detected by the second humidity detection device 16 is compared with a predetermined range. When the humidity detected by the second humidity detection device 16 is lower than the preset range, the opening of the second valve 1722 is increased and the humidity regulating device 11 is activated until the humidity detected by the second humidity detection device 16 is within the preset range. When the humidity detected by the second humidity detection device 16 is higher than the preset range, the opening of the second valve 1722 is decreased and the humidity regulating device 11 is closed until the humidity detected by the second humidity detection device 16 is within the preset range, so that the oven system 10 has a stable humidity during normal operation.
[0131] It should be noted that the humidity regulating device 11 here can further adjust the humidity of the incoming gas so that the humidity of the second humidity detection device 16 is within a preset range.
[0132] The second aspect of this application proposes a battery production line, which includes an oven system 10 as described in the above embodiments.
[0133] The battery production line here is the equipment used in the production process of power batteries, which can realize the production of power batteries.
[0134] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application.
[0135] A first aspect of the embodiments of this application provides an oven system 10, which includes an air inlet pipe 17, a humidity regulating device 11, a first humidity detection device 13, a drying device 14, and an exhaust pipe 15. The humidity regulating device 11 is connected to the air inlet pipe 17 and is used to regulate the humidity of the gas entering through the air inlet pipe 17. The first humidity detection device 13 is used to detect the humidity of the gas discharged from the drying device 14. The drying device 14 is used to receive the gas discharged from the humidity regulating device 11 and to dry the diaphragm. The gas discharged from the humidity regulating device 11 has a humidity within a predetermined range. The exhaust pipe 15 is connected to the drying device 14. Further, the temperature regulating device 12 includes a waste heat recovery unit. Furthermore, the air intake pipe 17 includes a first air intake pipe 171 and a second air intake pipe 172. The first air intake pipe 171 is equipped with a first valve 1711 and is connected to fresh air. The second air intake pipe 172 is equipped with a second valve 1722 and is connected to the exhaust pipe 15. Furthermore, the connection point between the second air intake pipe 172 and the exhaust pipe 15 is located upstream of the temperature regulating device 12, and the connection point between the second air intake pipe 172 and the first air intake pipe 171 is located between the temperature regulating device 12 and the humidity regulating device 11. Furthermore, the humidity regulating device 11 includes a water tank 111, a spray assembly 112, a first pipeline 113, and a power component 114. The water tank 111 is used to store water. The spray assembly 112 includes a housing 1121 and a nozzle 1122. A spray space 1123 is formed inside the housing 1121. The spray space 1123 is connected to the air inlet pipeline 17 and the drying device 14, respectively. The nozzle 1122 is used to spray water into the spray space 1123. The first pipeline 113 is connected to the water tank 111 and the nozzle 1122, respectively. The power component 114 is provided on the first pipeline 113 so that the water source is sprayed out from the nozzle 1122 after passing through the first pipeline 113. Further, the first pipe 113 penetrates the housing 1121 and includes a first section 1131 located within the spray space 1123 and a second section 1132 located outside the spray space 1123. The first section 1131 and the second section 1132 are interconnected. The nozzle 1122 is located on the first section 1131 and communicates with it. Further, the humidity regulating device 11 also includes a support member 115, to which the housing 1121 and the first section 1131 are respectively connected. Further, the humidity regulating device 11 also includes a pressure sensor 116 located on the second section 1132. Further, the humidity regulating device 11 also includes a pressure switch 117 located on the second section 1132. Further, the humidity regulating device 11 also includes a liquid level sensor 1111 located inside the water tank 111.Furthermore, the humidity regulating device 11 also includes a first filter 118, which is provided on at least one of the water inlet pipes of the second section 1132 and the water tank 111. Furthermore, the humidity regulating device 11 also includes a second filter 119, which is located at the inlet of the spray space 1123. Furthermore, a first fan 174 is provided on the air inlet pipe 17, and / or a second fan 175 is provided on the exhaust pipe 15.
[0136] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. An oven system, characterized in that, The oven system includes: Intake pipe; A humidity regulating device, which is connected to the air intake pipe and is used to regulate the humidity of the gas entering through the air intake pipe; A drying device is used to receive the gas discharged from the humidity regulating device and use the discharged gas to dry the diaphragm. The gas discharged from the humidity regulating device has a humidity within a predetermined range. A first humidity detection device is used to detect the humidity of the gas discharged from the drying device. A temperature regulating device, wherein the temperature regulating device is used to cool at least a portion of the gas discharged from the drying device and to heat the fresh air entering the temperature regulating device; and An exhaust pipe, which is connected to the drying device; The air intake pipe includes a first air intake pipe and a second air intake pipe, wherein one end of the first air intake pipe is for fresh air to enter, and the other end of the first air intake pipe is connected to the humidity regulating device; the second air intake pipe is connected to the exhaust pipe. The second air inlet pipe is connected to the exhaust pipe at an upstream position of the temperature regulating device. The second air inlet pipe is connected to the first air inlet pipe. The second air inlet pipe is used to introduce the gas discharged from the exhaust pipe into the drying device. The connection between the second air inlet pipe and the first air inlet pipe is located between the temperature regulating device and the humidity regulating device.
2. The oven system as described in claim 1, characterized in that, The temperature control device includes a waste heat recovery unit.
3. The oven system as described in claim 1, characterized in that, The humidity regulating device includes: Water tank, the water tank being used to store water; A spray assembly includes a housing and a nozzle. A spray space is formed inside the housing. The spray space is connected to the air inlet pipe and the drying device. The nozzle is used to spray water into the spray space. The first pipeline is connected to the water tank and the nozzle respectively; A power unit is provided on the first pipeline so that the water source is sprayed out from the nozzle after passing through the first pipeline.
4. The oven system as described in claim 3, characterized in that, The first pipeline passes through the housing and includes a first section located inside the spray space and a second section located outside the spray space. The first section and the second section are interconnected. The nozzle is located on the first section and is connected to the first section.
5. The oven system as described in claim 4, characterized in that, The humidity regulating device further includes: The support member, the housing, and the first segment are respectively connected to the support member.
6. The oven system as described in claim 4 or 5, characterized in that, The humidity regulating device also includes a pressure sensor, which is located on the second segment.
7. The oven system as described in claim 4 or 5, characterized in that, The humidity regulating device also includes a pressure switch, which is located on the second section.
8. The oven system as described in claim 4 or 5, characterized in that, The humidity regulating device also includes a liquid level sensor, which is located inside the water tank.
9. The oven system as described in claim 4 or 5, characterized in that, The humidity regulating device further includes a first filter, which is provided on at least one of the second section and the water inlet pipe of the water tank.
10. The oven system as described in any one of claims 3 to 5, characterized in that, The humidity regulating device also includes a second filter, which is located at the inlet of the spray space.
11. The oven system as described in any one of claims 1 to 5, characterized in that, The intake pipe is equipped with a first fan, and / or the exhaust pipe is equipped with a second fan.
12. A battery production line, characterized in that, The battery production line includes an oven system as described in any one of claims 1 to 11.