Energy linkage supply system and method for dehumidifying coating equipment

Abstract

The application discloses a kind of dehumidification coating equipment energy linkage supply system and method, system includes: the refrigeration end of regenerative heat pump and the surface cooler group of dehumidifier carry out heat exchange by water circulation, the air that passes through dehumidifier is cooled down;Desiccant wheel is carried out dehumidification to the air after cooling in dehumidification zone, and the air after dehumidification is sent into lithium battery production workshop;The heating end of regenerative heat pump is heated to natural wind, and the moisture adsorbed by desiccant wheel is evaporated by the natural wind after heating in regeneration zone and restores the dehumidification capacity of desiccant wheel;The heating end of regenerative heat pump and heat source temperature raising equipment carry out heat exchange by water circulation, and heat source temperature raising equipment provides high-temperature steam for coating machine;By regenerative heat pump linkage lithium electric factory dehumidifier and coating machine, cold and heat cogeneration is realized, and the high-temperature heat source required by coating machine is used for the surplus heat of dehumidifier in cascade, energy utilization is improved, production energy consumption cost is reduced, and system energy supply and demand dynamic balance is realized.

Description

Technical Field

[0001] This invention belongs to the field of lithium battery processing technology, specifically relating to an energy-linked supply system and method for dehumidifying coating equipment. Background Technology

[0002] Dehumidifiers, as core equipment for workshop environmental control, play a crucial role in continuous dehumidification, ensuring that the humidity in the production space always meets process standards. Coating machines are core equipment in electrode preparation, using heat energy to achieve solvent evaporation and structural solidification of the electrode slurry, directly determining the quality of electrode forming. Both require uninterrupted operation in the continuous production of lithium batteries and rely on a stable and continuous supply of cold and heat energy, making them core energy consumption units in the lithium battery production process.

[0003] The dehumidifier's surface cooling relies on an independent refrigeration unit, and both regeneration and post-heating are done by electric heating. The coating machine's slurry curing heating is also done by traditional electric heating. The heating requirement of the coating machine in a 10GWh battery plant alone reaches 1200KW. In the pure electric mode, the plant's power consumption is huge. Moreover, the two sets of equipment have no energy linkage design. The cooling and heating needs are supplied separately, and there is no cross-equipment allocation and recycling, resulting in a large amount of energy waste.

[0004] Meanwhile, the cooling demand of dehumidifiers is about three times that of their heating demand. Existing technology lacks waste heat recovery design, and the low-grade excess heat generated during operation is directly lost and cannot be utilized by other equipment; this creates a contradiction between waste heat and high-energy-consuming heating. Summary of the Invention

[0005] This invention provides an energy linkage supply system and method for dehumidifying coating equipment. By linking a dehumidifier and a coating machine in a lithium battery factory through a regenerative heat pump, the system achieves combined cooling and heating. The excess heat from the dehumidifier is utilized in stages as a high-temperature heat source required by the coating machine. With the addition of energy storage and waste heat power generation, the system achieves closed-loop energy utilization, significantly improving energy efficiency, reducing production energy costs, and realizing a dynamic balance between system energy supply and demand.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] The first aspect of this invention provides an energy-linked supply system for a dehumidifying coating equipment, including a regenerative heat pump and a heat source heating device;

[0008] The regenerative heat pump's cooling end exchanges heat with the dehumidifier's surface cooler assembly through water circulation, absorbing heat from the surface cooler assembly to cool the air passing through the dehumidifier; the dehumidifier's dehumidifying impeller is simultaneously located in the dehumidification zone and the regeneration zone; in the dehumidification zone, the dehumidifying impeller dehumidifies the cooled air, and the dehumidified air is then sent into the lithium battery production workshop.

[0009] The heating end of the regenerative heat pump heats the natural wind drawn from the outside. In the regeneration zone, the heated natural wind evaporates the moisture adsorbed by the dehumidifying wheel and restores the dehumidifying wheel's dehumidification capacity. The water vapor evaporated from the dehumidifying wheel is discharged to the outside.

[0010] Meanwhile, the heating end of the regenerative heat pump exchanges heat with the heat source heating device through water circulation, and the heat source heating device provides high-temperature steam to the coating machine.

[0011] This invention's regenerative heat pump's cooling end exchanges heat with the surface cooler assembly via water circulation, absorbing heat to cool dehumidified air, replacing the traditional independent refrigeration unit and reducing individual cooling energy consumption. Simultaneously, the heating end provides hot air for the regeneration of the rotating impeller, achieving dual cooling and heating with a single unit of electricity, significantly improving energy utilization efficiency. Furthermore, its heating end transfers excess heat via water circulation to a heat source warming device for use by the coating machine, effectively absorbing low-grade waste heat, solving the problem of waste heat, and greatly improving the overall energy utilization rate of the core lithium battery production process.

[0012] Furthermore, the dehumidifier is equipped with two sets of dehumidification impellers, designated as a primary impeller and a secondary impeller; the surface cooler assembly includes a front surface cooler and a middle surface cooler; outdoor air undergoes initial cooling through the front surface cooler and is then transported to the dehumidification zone where the primary impeller is located for the first dehumidification; the air after the first dehumidification undergoes secondary cooling through the middle surface cooler and then undergoes a second dehumidification through the dehumidification zone where the secondary impeller is located.

[0013] This invention employs a staged cooling and dehumidification design, combining a front surface cooler, a middle surface cooler, and primary and secondary rotors. Outdoor air undergoes initial cooling by the front surface cooler, followed by initial dehumidification by the primary rotor. It then experiences secondary cooling by the middle surface cooler and further dehumidification by the secondary rotor. This progressive approach enhances dehumidification depth and efficiency, precisely meeting the stringent low-humidity environmental requirements of lithium battery production. Simultaneously, the staged design distributes the dehumidification load across individual stages, resulting in more stable equipment operation, extended rotor lifespan, and a continuously stable process environment in the workshop, ultimately contributing to improved battery product yield.

[0014] Furthermore, it also includes a post-heating heat pump, the cooling end of which is used to exchange heat with the surface cooler assembly of the dehumidifier, thereby absorbing the heat from the surface cooler assembly to cool the air passing through the dehumidifier; the heating end of the post-heating heat pump is used to heat the air after the second dehumidification.

[0015] In this invention, the post-heating heat pump achieves combined cooling and heating. The cooling end assists the surface cooler group to absorb heat and enhance the air cooling and dehumidification effect, while the heating end specifically heats the air after secondary dehumidification. One unit of electricity achieves dual functions, significantly reducing the energy consumption of separate cooling and heating, and can also precisely control the workshop air supply temperature, adapting to the environmental and process requirements of lithium battery production, and improving the overall energy utilization efficiency of the dehumidification system.

[0016] Furthermore, the heating end of the post-heating heat pump is connected to the post-electric heater via a pipe, and the post-heating heat pump and the post-electric heater are electrically connected to a controller; the controller selects the heating end of the post-heating heat pump and / or the post-electric heater to heat the air after the second dehumidification according to the received instructions, and the air is sent into the lithium battery production workshop after being heated to the set temperature.

[0017] This invention employs a dual-path heating system, consisting of a post-heating heat pump and a post-heating electric heater, with intelligent controller adjustment. The heating devices can be activated individually or in combination as needed, precisely heating the air to the set temperature to meet the stringent air supply temperature requirements of lithium battery workshops. The heat pump serves as the primary heating source, resulting in greater energy efficiency, while the electric heater acts as a backup to ensure continuous heating, thus enhancing the system's fault tolerance and stability.

[0018] Furthermore, the pipe connecting the heating end of the post-heating heat pump and the post-electric heater is equipped with a first regulating valve.

[0019] The first regulating valve can precisely adjust the heat and airflow distribution between the two, and work with the controller to achieve fine-grained control of the air supply temperature, meeting the stringent temperature and humidity requirements of lithium battery production workshops. Simultaneously, it can optimize the heat supply ratio, prioritizing energy-saving heat pump heating, reducing electric heating energy consumption, and improving system operational stability and energy efficiency.

[0020] Furthermore, the heating end of the regenerative heat pump is connected to the primary regenerative electric heater via a pipeline. The heating end of the regenerative heat pump and the primary regenerative electric heater sequentially heat the natural air drawn from the outside and then deliver it to the regeneration zone where the primary rotor is located.

[0021] In this invention, the heating end of the regenerative heat pump and the primary regenerative electric heater sequentially heat the outdoor natural air. With the heat pump as the primary source and electric heating as a secondary source, the regenerative air can be precisely and stably heated to the process temperature, fully meeting the regeneration requirements of the primary rotor and efficiently restoring its dehumidification capacity. This combined heating method reduces the energy consumption of pure electric heating while ensuring stable regenerative air temperature, guaranteeing continuous and reliable operation of the dehumidification system.

[0022] Furthermore, the pipe connecting the heating end of the regenerative heat pump to the primary regenerative electric heater is equipped with a second regulating valve.

[0023] The second regulating valve can precisely adjust the airflow and heat distribution of the hot air, achieving fine control of the regeneration air temperature of the primary rotor and ensuring that the regeneration temperature remains stable and meets the standards. Simultaneously, it can optimize the heating ratio between the heat pump and electric heating, reducing electric heating energy consumption and improving the system's energy efficiency and operational stability.

[0024] Furthermore, the heating end of the regenerative heat pump is connected to the secondary regenerative electric heater through a pipeline. The heating end of the regenerative heat pump and the secondary regenerative electric heater sequentially heat the natural air drawn from the outside and then deliver it to the regeneration zone where the secondary rotor is located.

[0025] In this invention, the heating end of the regenerative heat pump and the secondary regenerative electric heater sequentially heat the outdoor natural air. By using the heat pump as the main source and electric heating as the auxiliary source, the regenerative air can be precisely heated to the temperature required by the secondary rotor, thus efficiently restoring the dehumidification performance of the rotor.

[0026] Furthermore, the regeneration zone where the secondary rotor is located is connected to the secondary regeneration electric heater via a pipeline; the secondary regeneration electric heater heats the air drawn from the dehumidification zone where the secondary rotor is located and then sends it into the regeneration zone where the secondary rotor is located.

[0027] This invention heats the dehumidified air and sends it into the secondary rotor regeneration zone, which can efficiently remove the moisture adsorbed by the rotor, continuously restore its dehumidification capacity, and ensure that the secondary rotor is precisely adapted to the stringent low humidity environment requirements of lithium battery production.

[0028] Furthermore, the heat source temperature-raising equipment includes a high-temperature heat pump and a steam heat pump; the heating end of the regenerating heat pump, the high-temperature heat pump, and the steam heat pump are connected in sequence through a water circulation pipeline; the heating end of the regenerating heat pump outputs low-grade hot water, the high-temperature heat pump performs a first-stage temperature-raising of the low-grade hot water to obtain high-grade hot water, and the steam heat pump performs a second-stage temperature-raising of the high-grade hot water to obtain high-temperature steam, and delivers the high-temperature steam to the coating machine.

[0029] This invention employs a two-stage heat source system consisting of a high-temperature heat pump and a steam heat pump. Through water circulation, the low-grade hot water produced by the regenerative heat pump is gradually heated and ultimately converted into high-temperature steam required by the coating machine, achieving efficient recovery and utilization of waste heat from the dehumidification system. This method replaces traditional electric heating for steam supply, significantly reducing production energy consumption and substantially improving the overall energy utilization rate of lithium battery production.

[0030] Furthermore, a storage device is provided on the connecting pipeline between the high-temperature heat pump and the steam heat pump; the storage device is used to store high-grade hot water, and when the high-grade hot water stored in the storage device is higher than a set threshold, the high-grade hot water is transported to the power generation device; the power generation device uses medium and low temperature waste heat power generation technology to convert the thermal energy of the high-grade hot water into electrical energy.

[0031] This invention incorporates a storage device between a high-temperature heat pump and a steam heat pump to buffer high-quality hot water, balance the system's heat supply and demand, and avoid waste heat fluctuations. When the hot water volume exceeds a threshold, it is sent to a power generation device, which uses medium- and low-temperature waste heat to generate electricity, thereby achieving deep recovery and utilization of waste heat, further improving energy efficiency, and reducing the overall energy consumption of lithium battery production.

[0032] Furthermore, the steam heat pump is equipped with a water replenishment device; the water replenishment device is connected to the storage device through a pipeline, and the water replenishment device introduces high-grade hot water from the storage device to replenish the steam heat pump.

[0033] In this invention, the water replenishment device introduces high-grade hot water from the storage device to replenish the steam heat pump, thereby compensating for the loss of high-temperature steam output by the steam heat pump and ensuring stable operation of the steam heat pump. At the same time, the high-grade hot water avoids the heat loss caused by room temperature water replenishment, reducing the energy consumption of the steam heat pump for heating.

[0034] A second aspect of the present invention provides a method for energy linkage supply of a dehumidifying coating equipment, comprising:

[0035] The cooling end of the regenerative heat pump and the surface cooler of the dehumidifier exchange heat through water circulation, and the air passing through the dehumidifier is cooled by absorbing the heat from the surface cooler.

[0036] The dehumidifying rotor in the dehumidifier rotates between the dehumidification zone and the regeneration zone; in the dehumidification zone, the dehumidifying rotor dehumidifies the cooled air, and the dehumidified air is sent into the lithium battery production workshop.

[0037] The natural air drawn from the outside is heated by the heating end of the regenerative heat pump. In the regeneration zone, the heated natural air evaporates the moisture adsorbed by the dehumidifying wheel and restores the dehumidifying wheel's dehumidification capacity. The water vapor evaporated from the dehumidifying wheel is discharged to the outside.

[0038] The heating end of the regenerative heat pump and the heat source heating equipment exchange heat through water circulation, and the heat source heating equipment provides high-temperature steam to the coating machine.

[0039] This invention achieves combined cooling and heating through a regenerative heat pump. The cooling end is provided by a surface cooler for cooling and the heating end is provided by a rotary regeneration system. At the same time, the waste heat is transferred to a heat source heating device to provide high-temperature steam for the coating machine. Combined with the continuous rotation of the rotary system, uninterrupted dehumidification and regeneration are achieved, which greatly improves energy utilization and reduces production energy consumption.

[0040] Furthermore, the heat source temperature raising equipment includes a high-temperature heat pump and a steam heat pump; the heating end of the regenerative heat pump, the high-temperature heat pump, and the steam heat pump are connected in sequence through a water circulation pipeline.

[0041] The low-grade hot water output from the heating end of the regenerative heat pump is transferred to the high-temperature heat pump. The high-temperature heat pump performs a first-stage temperature increase on the low-grade hot water to obtain high-grade hot water. The high-grade hot water is then subjected to a second-stage temperature increase on the steam heat pump to obtain high-temperature steam, which is then delivered to the coating machine.

[0042] This invention employs a two-stage heat source heating device consisting of a high-temperature heat pump and a steam heat pump. The low-grade hot water produced by the regenerating heat pump is heated in stages through water circulation, and finally converted into high-temperature steam required by the coating machine, thus realizing the efficient recovery and utilization of waste heat from the dehumidification system.

[0043] Furthermore, a storage device is provided on the connecting pipeline between the high-temperature heat pump and the steam heat pump; the storage device is used to store high-grade hot water.

[0044] When the high-grade hot water stored in the storage device exceeds the set threshold, the high-grade hot water is transported to the power generation device; the power generation device uses medium and low temperature waste heat power generation technology to convert the thermal energy of the high-grade hot water into electrical energy.

[0045] This invention incorporates a storage device between a high-temperature heat pump and a steam heat pump to buffer high-quality hot water, balance the system's heat supply and demand, and avoid waste heat fluctuations. When the hot water volume exceeds a threshold, it is sent to a power generation device, which uses medium- and low-temperature waste heat to generate electricity, thereby achieving deep recovery and utilization of waste heat, further improving energy efficiency, and reducing the overall energy consumption of lithium battery production.

[0046] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0047] This invention's regenerative heat pump cooling end exchanges heat with the surface cooler assembly via water circulation, directly absorbing heat to cool the air in the dehumidifier, replacing the cooling capacity supply of a traditional independent refrigeration unit and reducing the individual energy consumption of the refrigeration equipment. The heating end simultaneously provides hot air for the rotary regeneration, achieving dual cooling and heating with a single unit of electricity, resulting in energy efficiency far exceeding that of traditional single-power supply equipment. Furthermore, the regenerative heat pump heating end not only meets its own regeneration needs but also transfers excess heat to the heat source heating equipment via water circulation, powering the coating machine. This effectively utilizes the low-grade waste heat generated during dehumidifier operation, fundamentally solving the problem of waste heat waste in traditional dehumidification systems and significantly improving the overall energy utilization rate of the core lithium battery production process.

[0048] In this invention, the dehumidifying impeller of the dehumidifier is simultaneously located in both the dehumidification zone and the regeneration zone. The heating end of the regeneration heat pump directly heats the outdoor natural wind, providing a stable heat source for the regeneration zone. This quickly evaporates the moisture adsorbed by the dehumidifying impeller and discharges it outdoors, efficiently restoring the impeller's dehumidification capacity and ensuring that the dehumidification efficiency of the dehumidification zone is always at its optimal state. The cooling end of the regeneration heat pump exchanges heat with the water circulation of the surface cooler group, resulting in high heat exchange efficiency and stable cooling supply. This continuously cools the air to the process requirements, achieving deep dehumidification in conjunction with the impeller. This keeps the temperature and humidity in the workshop within the precise range required for lithium battery production, effectively preventing fluctuations in environmental parameters from affecting the performance and yield of battery products. At the same time, it enables uninterrupted dehumidification without the need to stop the machine for impeller regeneration switching, ensuring the dehumidifier's continuous and stable dehumidification and air supply capability for the lithium battery production workshop. Attached Figure Description

[0049] Figure 1 This is a structural diagram of the energy supply system for the dehumidification coating equipment provided in Embodiment 1 of the present invention;

[0050] In the diagram, 1 is the pre-cooler, 2 is the intermediate cooler, 3 is the post-heater, 4 is the post-heating heat pump, 5 is the first regulating valve, 6 is the post-heating pipe, 7 is the cooling end of the regenerative heat pump, 8 is the heating end of the regenerative heat pump, 9 is the secondary regenerative electric heater, 10 is the primary regenerative electric heater, 11 is the second regulating valve, 12 is the regenerative heating air supply pipe, 13 is the chilled water pipe, 14 is the steam heat pump, 15 is the coating machine, 16 is the water replenishment device, 17 is the storage device, 18 is the power generation device, 19 is the primary rotor, 20 is the secondary rotor, 21 is the medium-efficiency filter, and 22 is the high-temperature heat pump. Detailed Implementation

[0051] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0052] Example 1

[0053] like Figure 1 As shown, this embodiment provides an energy-linked supply system for a dehumidifying coating equipment, including a regenerative heat pump and a heat source heating device;

[0054] The dehumidifier includes a primary rotor 19, a secondary rotor 20, a front surface cooler 1, and a middle surface cooler 2; the primary rotor 19 and the secondary rotor 20 are located in the dehumidification zone and the regeneration zone simultaneously; the cooling end 7 of the regeneration heat pump is connected to the front surface cooler 1 and the middle surface cooler 2 of the dehumidifier through a chilled water pipe 13, and the cooling end 7 of the regeneration heat pump exchanges heat with the front surface cooler 1 and the middle surface cooler 2 to cool the air passing through the dehumidifier;

[0055] Outdoor air, after being filtered by a pre-filter and initially cooled by the front surface cooler 1, is delivered to the dehumidification zone containing the first-stage rotor 19 for initial dehumidification. The air after the first dehumidification is then filtered by the medium-efficiency filter 21, cooled a second time by the medium surface cooler 2, and then dehumidified a second time by the second-stage rotor 20. This invention employs a staged cooling and dehumidification design with the front surface cooler 1, medium surface cooler 2, and first-stage and second-stage rotors 19 and 20 working together, improving dehumidification depth and efficiency. Simultaneously, the staged design distributes the dehumidification load of individual equipment, ensuring a continuously stable process environment in the workshop.

[0056] The cooling end of the post-heating heat pump 4 is used to exchange heat with the front surface cooler 1 and the middle surface cooler 2, cooling the air passing through the dehumidifier by absorbing heat from the front surface cooler 1 and the middle surface cooler 2. The heating end of the post-heating heat pump 4 is used to heat the air after the second dehumidification. In this embodiment, the post-heating heat pump 4 achieves combined cooling and heating. The cooling end assists the surface cooler group in absorbing heat and enhancing the air cooling and dehumidification effect, while the heating end is dedicated to heating the air after the second dehumidification. One unit of electricity achieves dual functions, significantly reducing the energy consumption of separate cooling and heating, and can also precisely control the workshop air supply temperature, adapting to the environmental and process requirements of lithium battery production, and improving the overall energy utilization efficiency of the dehumidification system.

[0057] The heating end of the post-heating heat pump 4 is connected to the post-electric heater 3 via a post-heating pipe 6. The post-heating heat pump 4 and the post-electric heater 3 are electrically connected to a controller. The controller selects the heating end of the post-heating heat pump 4 and / or the post-electric heater 3 to heat the air after the second dehumidification according to the received instructions. After the air is heated to the set temperature, it is sent into the lithium battery production workshop. The pipe connecting the heating end of the post-heating heat pump and the post-electric heater is equipped with a first regulating valve 5. Using an energy-saving post-heating heat pump as the main heating source significantly reduces the investment and use of high-energy-consuming electric heating, resulting in outstanding energy-saving effects. At the same time, the post-electric heater is equipped as a backup heat source. With the first regulating valve 5 for precise temperature control, the two heat sources support each other, making the air supply temperature more stable.

[0058] The heating end 8 of the regenerative heat pump is connected to the primary regenerative electric heater 10 through a regenerative heating air supply pipe 12. The heating end 8 of the regenerative heat pump and the primary regenerative electric heater 10 heat the natural air drawn from the outside in sequence and then deliver it to the regeneration zone where the primary impeller 19 is located. The pipe connecting the heating end 8 of the regenerative heat pump and the primary regenerative electric heater 10 is equipped with a second regulating valve 11.

[0059] In the regeneration zone, the moisture adsorbed by the primary rotor 19 is evaporated by heated natural wind, restoring the dehumidification capacity of the dehumidifying rotor. The water vapor evaporated from the primary rotor 19 is discharged to the outside. In this embodiment, the heating end 8 of the regeneration heat pump is connected in series with the primary regeneration electric heater 10 for heating. With the second regulating valve 11, the heat is precisely regulated, which can stably supply the hot air required for the regeneration of the primary rotor, efficiently restore the dehumidification capacity of the rotor, reduce energy consumption, and ensure stable regeneration temperature.

[0060] The regeneration zone containing the secondary rotor 20 is connected to the secondary regeneration electric heater 9 via a pipeline. The secondary regeneration electric heater 9 heats the air drawn from the dehumidification zone containing the secondary rotor and then sends it into the regeneration zone containing the secondary rotor 20. In the regeneration zone, the heated air evaporates the moisture adsorbed by the secondary rotor 20, restoring the dehumidification capacity of the dehumidification rotor. The water vapor evaporated from the secondary rotor 20 is discharged outdoors. By heating the dehumidified air and sending it into the regeneration zone of the secondary rotor, the moisture adsorbed by the rotor can be efficiently removed, allowing it to continuously restore its dehumidification capacity and ensuring that the secondary rotor is precisely adapted to the stringent low-humidity environment requirements of lithium battery production.

[0061] The heat source heating equipment includes a high-temperature heat pump 22 and a steam heat pump 14; the heating end 8 of the regenerating heat pump, the high-temperature heat pump 22 and the steam heat pump 14 are connected in sequence through a water circulation pipeline; the heating end 8 of the regenerating heat pump outputs low-grade hot water, the high-temperature heat pump 22 performs a first-stage heating of the low-grade hot water to obtain high-grade hot water, and the steam heat pump 14 performs a second-stage heating of the high-grade hot water to obtain high-temperature steam, and delivers the high-temperature steam to the coating machine.

[0062] A two-stage heat source system, consisting of a high-temperature heat pump 22 and a steam heat pump 14, is employed. Low-grade hot water produced by the regenerative heat pump is gradually heated through water circulation, ultimately converting it into high-temperature steam required by the coating machine. This achieves efficient recovery and utilization of waste heat from the dehumidification system. This method replaces traditional electric heating steam supply, significantly reducing production energy consumption and substantially improving the overall energy utilization rate of lithium battery production.

[0063] A storage device 17 is provided on the connecting pipeline between the high-temperature heat pump 22 and the steam heat pump 14; the storage device 17 is used to store high-grade hot water. When the high-grade hot water stored in the storage device 17 is higher than a set threshold, the high-grade hot water is transported to the power generation device 18; the power generation device 18 uses medium and low temperature waste heat power generation technology to convert the thermal energy of the high-grade hot water into electrical energy.

[0064] Storage device 17 can buffer high-grade hot water, balance the system's heat supply and demand, and avoid waste heat fluctuations; when the hot water volume exceeds the threshold, it is sent to the power generation device, which uses medium and low temperature waste heat to generate electricity, realizing deep recovery and utilization of waste heat, further improving energy utilization efficiency and reducing the overall energy consumption of lithium battery production.

[0065] The steam heat pump 14 is equipped with a water replenishment device 16; the water replenishment device 16 is connected to the storage device 17 through a pipeline, and the water replenishment device 16 introduces high-grade hot water from the storage device 17 to replenish the steam heat pump 14.

[0066] In this embodiment, the water replenishment device 16 introduces high-grade hot water from the storage device 17 to replenish the steam heat pump 14, thereby compensating for the loss of high-temperature steam output by the steam heat pump 14 and ensuring stable operation of the steam heat pump. At the same time, the high-grade hot water avoids heat loss caused by room temperature water replenishment, reducing the energy consumption of the steam heat pump for heating.

[0067] In this embodiment, the regenerative heat pump's cooling end exchanges heat with the surface cooler unit via water circulation, absorbing heat to cool the dehumidified air, replacing the traditional independent refrigeration unit and reducing individual cooling energy consumption. Simultaneously, the heating end provides hot air for the regeneration of the rotary drum, achieving dual cooling and heating with a single unit of electricity, significantly improving energy utilization efficiency. Furthermore, its heating end transfers excess heat via water circulation to a heat source warming device for use by the coating machine, effectively absorbing low-grade waste heat, solving the problem of waste heat, and greatly improving the overall energy utilization rate of the core lithium battery production process.

[0068] Example 2

[0069] This embodiment provides an energy-linked supply system for a dehumidifying coating equipment. The difference between this energy-linked supply system and Embodiment 1 is that the heating end 8 of the regenerative heat pump and the secondary regenerative electric heater 9 are connected by a pipeline. The heating end 8 of the regenerative heat pump and the secondary regenerative electric heater 9 sequentially heat the natural air drawn from the outside and then deliver it to the regeneration zone where the secondary rotor is located. In the regeneration zone, the heated natural air evaporates the moisture adsorbed by the secondary rotor 20 and restores the dehumidification capacity of the dehumidifying rotor. The water vapor evaporated from the secondary rotor 20 is discharged to the outside.

[0070] In this invention, the heating end 8 of the regenerative heat pump and the secondary regenerative electric heater 9 sequentially heat the outdoor natural wind. By using the heat pump as the main source and electric heating as the auxiliary source, the regenerative wind can be precisely heated to the temperature required by the secondary rotor, thus efficiently restoring the dehumidification performance of the rotor.

[0071] Example 3

[0072] This embodiment provides an energy-linked supply method for a dehumidifying coating equipment. The energy-linked supply method is applied to the energy-linked supply system described in Embodiment 1. The energy-linked supply method includes:

[0073] In this embodiment, the two sets of dehumidifying impellers in the dehumidifier are the first-stage impeller 19 and the second-stage impeller 20 described in Embodiment 1, and the surface cooler group of the dehumidifier consists of the front surface cooler 1 and the middle surface cooler 2 described in Embodiment 1.

[0074] The cooling end 7 of the regenerative heat pump exchanges heat with the surface cooler group of the dehumidifier through water circulation, and cools the air passing through the dehumidifier by absorbing the heat of the surface cooler group.

[0075] The dehumidifying rotor in the dehumidifier rotates between the dehumidification zone and the regeneration zone; in the dehumidification zone, the dehumidifying rotor dehumidifies the cooled air, and the dehumidified air is sent into the lithium battery production workshop.

[0076] The natural air drawn from the outside is heated by the heating end 8 of the regenerative heat pump. In the regeneration zone, the heated natural air evaporates the moisture adsorbed by the dehumidifying wheel and restores the dehumidifying wheel's dehumidification capacity. The water vapor evaporated from the dehumidifying wheel is discharged to the outside.

[0077] The heating end 8 of the regenerative heat pump exchanges heat with the heat source heating equipment through water circulation, and the heat source heating equipment provides high-temperature steam to the coating machine.

[0078] The regenerative heat pump enables combined cooling and heating. The cooling end provides cooling to the surface cooler, while the heating end provides heating through the regenerative wheel. At the same time, the waste heat is transferred to the heat source heating equipment to provide high-temperature steam for the coating machine. Combined with the continuous rotation of the wheel, uninterrupted dehumidification and regeneration are achieved, which greatly improves energy utilization and reduces production energy consumption.

[0079] The low-grade hot water output from the heating end 8 of the regenerating heat pump is transferred to the high-temperature heat pump 22. The high-temperature heat pump 22 performs a first-stage temperature increase on the low-grade hot water to obtain high-grade hot water. The high-grade hot water is then subjected to a second-stage temperature increase by the steam heat pump 14 to obtain high-temperature steam, which is then delivered to the coating machine. The high-temperature heat pump 22 and the steam heat pump 14 constitute a two-stage heat source temperature increase device. Through water circulation, the low-grade hot water produced by the regenerating heat pump is gradually heated and ultimately converted into the high-temperature steam required by the coating machine, achieving efficient recovery and utilization of waste heat from the dehumidification system.

[0080] When the high-grade hot water stored in storage device 17 exceeds a set threshold, the high-grade hot water is transported to power generation device 18. Power generation device 18 uses medium-low temperature waste heat power generation technology to convert the thermal energy of the high-grade hot water into electrical energy. Storage device 17 can buffer high-grade hot water, balance the system's heat supply and demand, and avoid waste heat fluctuations. When the hot water volume exceeds the threshold, it is sent to power generation device 18, which uses medium-low temperature waste heat power generation to convert thermal energy into electrical energy, achieving deep recovery and utilization of waste heat, further improving energy utilization efficiency, and reducing the overall energy consumption of lithium battery production.

[0081] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An energy-linked supply system for dehumidifying coating equipment, characterized in that, This includes regenerative heat pumps and heat source heating equipment; The regenerative heat pump's cooling end exchanges heat with the dehumidifier's surface cooler assembly through water circulation, absorbing heat from the surface cooler assembly to cool the air passing through the dehumidifier; the dehumidifier's dehumidifying impeller is simultaneously located in the dehumidification zone and the regeneration zone; in the dehumidification zone, the dehumidifying impeller dehumidifies the cooled air, and the dehumidified air is then sent into the lithium battery production workshop. The heating end of the regenerative heat pump heats the natural wind drawn from the outside. In the regeneration zone, the heated natural wind evaporates the moisture adsorbed by the dehumidifying wheel and restores the dehumidifying wheel's dehumidification capacity. The water vapor evaporated from the dehumidifying wheel is discharged to the outside. Meanwhile, the heating end of the regenerative heat pump exchanges heat with the heat source heating device through water circulation, and the heat source heating device provides high-temperature steam to the coating machine.

2. The energy supply system for dehumidifying coating equipment according to claim 1, characterized in that, The dehumidifier is equipped with two sets of dehumidification impellers, designated as a primary impeller and a secondary impeller. The surface cooler assembly includes a front surface cooler and a middle surface cooler. Outdoor air is initially cooled by the front surface cooler and then delivered to the dehumidification zone where the primary impeller is located for the first dehumidification. After the first dehumidification, the air is cooled a second time by the middle surface cooler and then undergoes a second dehumidification by the dehumidification zone where the secondary impeller is located.

3. The energy supply system for dehumidifying coating equipment according to claim 2, characterized in that, It also includes a post-heating heat pump, the cooling end of which is used to exchange heat with the surface cooler assembly of the dehumidifier, and to cool the air passing through the dehumidifier by absorbing the heat from the surface cooler assembly; the heating end of the post-heating heat pump is used to heat the air after the second dehumidification.

4. The energy supply system for the dehumidifying coating equipment according to claim 3, characterized in that, The heating end of the post-heating heat pump is connected to the post-electric heater through a pipe. The post-heating heat pump and the post-electric heater are electrically connected to a controller. The controller selects the heating end of the post-heating heat pump and / or the post-electric heater to heat the air after the second dehumidification according to the received instructions. After the air is heated to the set temperature, it is sent into the lithium battery production workshop.

5. The energy supply system for the dehumidifying coating equipment according to claim 4, characterized in that, The pipe connecting the heating end of the post-heating heat pump and the post-electric heater is equipped with a first regulating valve.

6. The energy supply system for dehumidifying coating equipment according to claim 2, characterized in that, The heating end of the regenerative heat pump is connected to the primary regenerative electric heater through a pipeline. The heating end of the regenerative heat pump and the primary regenerative electric heater heat the natural air drawn from the outside in sequence, and then deliver it to the regeneration zone where the primary rotor is located.

7. The energy supply system for dehumidifying coating equipment according to claim 6, characterized in that, The pipe connecting the heating end of the regenerative heat pump to the primary regenerative electric heater is equipped with a second regulating valve.

8. The energy supply system for dehumidifying coating equipment according to claim 2, characterized in that, The heating end of the regenerative heat pump is connected to the secondary regenerative electric heater through a pipeline. The heating end of the regenerative heat pump and the secondary regenerative electric heater heat the natural air drawn from the outside in sequence, and then deliver it to the regeneration zone where the secondary rotor is located.

9. The energy supply system for dehumidifying coating equipment according to claim 2, characterized in that, The regeneration zone where the secondary rotor is located is connected to the secondary regeneration electric heater via a pipeline; the secondary regeneration electric heater heats the air drawn from the dehumidification zone where the secondary rotor is located and then sends it into the regeneration zone where the secondary rotor is located.

10. The energy supply system for the dehumidifying coating equipment according to claim 1, characterized in that, The heat source heating equipment includes a high-temperature heat pump and a steam heat pump; the heating end of the regenerating heat pump, the high-temperature heat pump, and the steam heat pump are connected in sequence through a water circulation pipeline; the heating end of the regenerating heat pump outputs low-grade hot water, the high-temperature heat pump performs a first-stage temperature increase on the low-grade hot water to obtain high-grade hot water, and the steam heat pump performs a second-stage temperature increase on the high-grade hot water to obtain high-temperature steam, and then delivers the high-temperature steam to the coating machine.

11. The energy supply system for dehumidifying coating equipment according to claim 10, characterized in that, A storage device is provided on the connecting pipeline between the high-temperature heat pump and the steam heat pump; the storage device is used to store high-grade hot water, and when the high-grade hot water stored in the storage device is higher than a set threshold, the high-grade hot water is transported to the power generation device; the power generation device uses medium and low temperature waste heat power generation technology to convert the thermal energy of the high-grade hot water into electrical energy.

12. The energy supply system for dehumidifying coating equipment according to claim 11, characterized in that, The steam heat pump is equipped with a water replenishment device; the water replenishment device is connected to the storage device through a pipeline, and the water replenishment device introduces high-grade hot water from the storage device to replenish the steam heat pump.

13. The control method for the energy-linked supply system of the dehumidifying coating equipment according to any one of claims 1 to 12, characterized in that, Specifically, it includes: The cooling end of the regenerative heat pump and the surface cooler of the dehumidifier exchange heat through water circulation, and the air passing through the dehumidifier is cooled by absorbing the heat from the surface cooler. The dehumidifying rotor in the dehumidifier rotates between the dehumidification zone and the regeneration zone; in the dehumidification zone, the dehumidifying rotor dehumidifies the cooled air, and the dehumidified air is sent into the lithium battery production workshop. The natural air drawn from the outside is heated by the heating end of the regenerative heat pump. In the regeneration zone, the heated natural air evaporates the moisture adsorbed by the dehumidifying wheel and restores the dehumidifying wheel's dehumidification capacity. The water vapor evaporated from the dehumidifying wheel is discharged to the outside. The heating end of the regenerative heat pump and the heat source heating equipment exchange heat through water circulation, and the heat source heating equipment provides high-temperature steam to the coating machine.

14. The control method for the energy linkage supply system of the dehumidification coating equipment according to claim 13, characterized in that, The heat source temperature raising equipment includes a high-temperature heat pump and a steam heat pump; the heating end of the regenerative heat pump, the high-temperature heat pump and the steam heat pump are connected in sequence through a water circulation pipeline. The low-grade hot water output from the heating end of the regenerative heat pump is transferred to the high-temperature heat pump. The high-temperature heat pump performs a first-stage temperature increase on the low-grade hot water to obtain high-grade hot water. The high-grade hot water is then subjected to a second-stage temperature increase on the steam heat pump to obtain high-temperature steam, which is then delivered to the coating machine.

15. The control method for the energy-linked supply system of the dehumidifying coating equipment according to claim 14, characterized in that, A storage device is provided on the connecting pipeline between the high-temperature heat pump and the steam heat pump; the storage device is used to store high-grade hot water. When the high-grade hot water stored in the storage device exceeds the set threshold, the high-grade hot water is transported to the power generation device; the power generation device uses medium and low temperature waste heat power generation technology to convert the thermal energy of the high-grade hot water into electrical energy.

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