Cooling device and method for energy storage battery container

Abstract

The invention discloses a cooling device and method for an energy storage battery container, and belongs to the field of energy storage container equipment. Comprising a container, a battery rack is arranged in the container, a battery supporting plate is arranged on the battery rack, and a battery is arranged on the battery supporting plate; wherein a cooling space is arranged in the battery supporting plate, and an air cooling space through which air passes and a liquid cooling space through which liquid passes are formed in the middle of the cooling space through a transverse partition plate; a communicating pipe for communicating the air cooling space with the liquid cooling space is further arranged on the transverse partition plate, and an atomizing nozzle is arranged at the upper end of the communicating pipe. The device has the beneficial effects that a communicating pipe for communicating the air cooling space with the liquid cooling space is further arranged on the transverse partition plate in the device, and an atomizing nozzle is arranged at the upper end of the communicating pipe; when the pressure of the cooling liquid in the liquid cooling space is enough, the atomizing nozzle is opened, and the cooling liquid can be sprayed into the air cooling space to cool the cooling gas in the air cooling space and directly participate in heat dissipation of the lithium battery, so that the heat dissipation effect is improved.

Description

Technical Field

[0001] The invention relates to a cooling device for an energy storage battery container and a method thereof, belonging to the field of energy storage container equipment. Background Art

[0002] The battery pack in the energy storage container is mainly composed of lithium battery cells connected in series and parallel. Lithium batteries generate a lot of heat during operation and are very sensitive to temperature. When the ambient temperature exceeds the battery's operating temperature, the battery will be seriously affected. Therefore, the structural design of the battery in the container and the optimization of the battery thermal management system will play a huge role in the development of new energy technologies.

[0003] Currently, there are four main ways to dissipate heat from battery packs: air cooling, liquid cooling, phase change materials, and cold plate cooling.

[0004] Air cooling is currently the most widely used heat dissipation method, and air cooling can be divided into forced convection cooling and natural convection cooling. Forced convection cooling means that the fan works on the air, and the flowing wind takes away a lot of heat to achieve the cooling effect. Liquid cooling is a method of using a relatively high thermal conductivity fluid to indirectly or directly contact the battery to dissipate heat.

[0005] Liquid cooling is divided into direct contact and indirect contact. Direct contact liquid cooling uses electrically insulating and highly thermally conductive liquids (such as silicone-based oils and mineral oils) to directly contact the single cells or modules. It can solve the problem of module temperature uniformity very well, but since insulating liquids generally have a high viscosity, the flow rate is not very high, which limits its heat exchange effect. In indirect contact liquid cooling, the liquid flows in the pipe and directly contacts the battery through fins, etc., transferring heat through the fins and transferring heat away through the flow of liquid, thereby cooling the battery. These two methods have high energy consumption.

[0006] The Chinese invention patent with application number CN202011142756.1 provides a battery cooling system for an energy storage container, which provides an air-cooling heat dissipation method. The applicant considers that the combined use of air cooling and liquid cooling, and the addition of liquid cooling on the basis of air cooling, can achieve better heat dissipation effects. At the same time, a new liquid cooling and air cooling circulation system is designed to reduce energy consumption. Summary of the invention

[0007] The object of the present invention is to provide a cooling device and method for an energy storage battery container, which can effectively solve the above-mentioned problems.

[0008] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: A container is included, wherein a battery rack is arranged in the container, a battery support plate is arranged on the battery rack, and the battery is arranged on the battery support plate; A cooling space is provided in the battery support plate, and a transverse partition is formed in the middle of the cooling space to form an air cooling space for gas to pass through and a liquid cooling space for liquid to pass through; a connecting pipe connecting the air cooling space with the liquid cooling space is also provided on the transverse partition, and an atomizing nozzle is provided at the upper end of the connecting pipe; Furthermore: a strip-shaped ventilation groove connected to the external environment is arranged above the air-cooling space.

[0009] Furthermore: the battery rack is provided with a plurality of battery mounting compartments according to its structural array, and each of the battery mounting compartments is provided with a mounting strip; the battery tray is fixed at the upper end of the mounting strip; a connecting device is provided between two laterally adjacent battery trays, and the connecting device includes an air circuit connecting pipe and a liquid circuit connecting pipe, the air circuit connecting pipe connects the air cooling space in the two adjacent battery trays, and the liquid circuit connecting pipe connects the liquid cooling space in the two adjacent battery trays.

[0010] Further: a cooling integrated plate is provided at the rear end of the battery rack, an integrated space is provided in the cooling integrated plate, and the middle of the integrated space is divided by a vertical partition to form a cooling medium input space and a cooling medium output space; The cooling medium input space is provided with an air inlet groove penetrating the cooling integrated plate and a liquid inlet pipe penetrating the cooling integrated plate; a connecting groove corresponding to the front and rear positions of the air inlet groove is provided at the rear end of the battery support plate at one end, and the connecting groove is connected to the air cooling space; the liquid inlet pipe is connected to the liquid cooling space in the battery support plate; An air outlet groove penetrating the cooling integrated plate and a liquid outlet pipe penetrating the cooling integrated plate are arranged in the cooling medium output space; a connecting groove corresponding to the front and rear positions of the air outlet groove is also arranged at the rear end of the battery tray located at the other end, and the connecting groove is connected to the air cooling space; the liquid outlet pipe is connected to the liquid cooling space in the battery tray.

[0011] Further: the cooling medium input space and the cooling medium output space are both vertically arranged with transverse averaging plates, and a plurality of medium channels are formed between two adjacent transverse averaging plates and the inner surface of the cooling integrated plate, and an integrated channel connected to the medium channel is formed between the side surface of the vertical partition plate and the inner surface of the cooling integrated plate; The end of the liquid inlet pipe is connected to a first horizontal pipe, and the end of the first horizontal pipe is connected to a first integrated pipe; the end of the liquid outlet pipe is connected to a second horizontal pipe, and the end of the second horizontal pipe is connected to a second integrated pipe; the first integrated pipe is connected to a high-pressure water pump, and the second integrated pipe is connected to a water tank.

[0012] Furthermore: the rear end face of the cooling integrated plate is provided with an exhaust pipe connected to the cooling medium output space, and one end of the exhaust pipe is connected to an exhaust fan; the output end of the exhaust fan is connected to a gas-liquid separation device, and the gas-liquid separation device is connected to a water tank; the rear end face of the cooling integrated plate is also provided with an air inlet hole connected to the cooling medium input space.

[0013] Further: the front and rear end surfaces of the container are arranged in installation grooves corresponding to the front and rear positions of the air inlet holes, and the installation grooves are provided with air inlet grilles.

[0014] Further: the battery racks are grouped into three, and four groups of the battery racks are arranged in the container, which are arranged at the front and rear sides of the container; two distribution cabinets are arranged between two groups of battery racks on the same side; Further: the exhaust fan and the gas-liquid separation device are both arranged in an installation box, and the gas-liquid separation device is arranged below the exhaust fan; the exhaust fan includes a mounting seat, and the mounting seat is fixed in the installation box through a fixing strip; a fan housing is arranged on the mounting seat, and blades are arranged in the fan housing, and a pulley driving device is arranged on the blades, and the pulley driving device is connected to a driving motor; An air inlet pipe is provided at the upper end of the fan housing, and an air expansion pipe is connected to the end of the air inlet pipe; an air guide pipe is provided on one side of the fan housing, and the air guide pipe is connected to the gas-liquid separation device; The gas-liquid separation device includes a separation tank, which is conical as a whole. An air inlet pipe connected to the air guide pipe is arranged at the upper part of the separation tank, and a liquid output pipe is arranged at the lower end of the separation tank, and the end of the liquid output pipe is connected to a liquid storage tank; a gas output pipe is arranged at the upper end of the separation tank, and an output fan is connected to the upper end of the gas output pipe.

[0015] A lighting lamp is arranged on the top of the container, and a rotating door is arranged on one side of the container.

[0016] A cooling method for an energy storage battery container, the method comprising: S1: Start the exhaust fan, and the cooling gas enters the cooling medium input space through the air inlet hole; S2: The cooling gas passes through the air inlet groove in the cooling medium input space and the connecting groove in the air cooling space at the end, and then enters the air cooling space from the cooling medium input space; S3: After passing through the multiple air-cooling spaces in the middle, the cooling gas enters the cooling medium output space from the connecting groove in the air-cooling space at the other end; S4: The cooling gas passes through the cooling medium output space and enters the exhaust fan to complete the air cooling work; S5: Start the high-pressure water pump, and the high-pressure cooling liquid fills the liquid cooling space through the liquid inlet pipe; S6: Open the valve of the atomizing nozzle, and the cooling liquid is sprayed into the air-cooling space in an atomized state and flows along with the air flow; S7: The gas extracted by the exhaust fan is input into the gas-liquid separation device to separate the gas and liquid, and the cooling liquid is recovered.

[0017] The beneficial effects are: A connecting pipe connecting the air-cooling space and the liquid-cooling space is also provided on the transverse partition of the device, and an atomizing nozzle is provided on the upper end of the connecting pipe; when the coolant pressure in the liquid-cooling space is sufficient, the atomizing nozzle is opened, and the coolant will be sprayed into the air-cooling space to cool down the cooling gas in the air-cooling space, directly participate in the heat dissipation of the lithium battery, and improve the heat dissipation effect.

[0018] This device is not only equipped with heat dissipation for the top and bottom of the lithium battery, but also can dissipate heat for the rear of the lithium battery; specifically, a cooling integrated plate is arranged at the rear end of the battery rack, an integrated space is arranged in the cooling integrated plate, and the middle of the integrated space is divided by a vertical partition to form a cooling medium input space and a cooling medium output space.

[0019] At the same time, the cooling medium input space and the cooling medium output space are connected with the air cooling space and the liquid cooling space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0021] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a diagram showing the internal structure of a container of the present invention; Figure 3 It is a parts diagram of the battery rack of the present invention; Figure 4 It is a part diagram of the battery support plate in the middle part of the present invention; Figure 5 It is a parts diagram of the connection device of the present invention; Figure 6 A cross-sectional view of the battery support plate in the middle portion of the present invention; Figure 7 It is a schematic diagram of the internal structure of the cooling integrated plate of the present invention; Figure 8 A diagram of the battery support plate parts on one side of the present invention; Fig. 9 A parts diagram of a battery support plate on the other side of the present invention; Fig.10 It is a schematic diagram of the internal structure of the installation box of the present invention; Fig.11 It is a structural parts diagram of the installation box of the present invention.

[0022] Description of reference numerals: 1. Container; 2. Battery rack; 3. Battery support plate; 4. Horizontal partition; 5. Air cooling space; 6. Liquid cooling space; 7. Connecting pipe; 8. Atomizing nozzle; 9. Strip ventilation groove; 10. Mounting strip; 11. Connecting device; 12. Air connection pipe; 13. Liquid connection pipe; 14. Cooling integrated board; 15. Vertical partition; 16. Cooling medium input space; 17. Cooling medium output space; 18. Air inlet groove; 19. Liquid inlet pipe; 20. Connecting groove; 21. Liquid outlet pipe; 22. Horizontal equalizing plate; 23. Medium channel; 24. Integrated channel; 25. First horizontal pipe; 26. First integrated pipe; 27. Second horizontal pipe; 2 8. Second integrated pipe; 29. ​​High-pressure water pump; 30. Water tank; 31. Exhaust pipe; 32. Exhaust fan; 321. Mounting base; 322. Fan casing; 323. Pulley drive device; 324. Drive motor; 325. Air inlet pipe; 326. Air expansion pipe; 327. Air guide pipe; 33. Gas-liquid separation device; 331. Separation tank; 332. Air inlet pipe; 333. Liquid output pipe; 334. Liquid storage tank; 335. Gas output pipe; 336. Output fan; 34. Mounting box; 35. Fixing strip; 36. Air inlet hole; 37. Air inlet grille; 38. Power distribution cabinet; 39. Lighting; 40. Revolving door; 41. Air outlet slot. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0024] It should be noted that, in the description of the present invention, unless otherwise specified, “plurality” means two or more than two; the orientations or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “inside”, “outside”, “front end”, “rear end”, “head” and “tail” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Furthermore, the terms “first,” “second,” “third,” etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0026] Meanwhile, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-11 This is an embodiment of a cooling device and method for an energy storage battery container of the present invention. like Figure 1 , Figure 2 As shown: comprising a container 1, a battery rack 2 is arranged in the container 1, a battery support plate 3 is arranged on the battery rack 2, and batteries are arranged on the battery support plate 3; like Figure 5 , Figure 4 , Figure 6 As shown: a cooling space is provided in the battery tray 3, and an air-cooling space 5 for gas to pass through and a liquid-cooling space 6 for liquid to pass through are formed in the middle of the cooling space through a transverse partition 4; a connecting pipe 7 connecting the air-cooling space 5 with the liquid-cooling space 6 is also provided on the transverse partition 4, and an atomizing nozzle 8 is provided at the upper end of the connecting pipe 7.

[0028] The battery used in the container 1 is a lithium battery, which is placed on the battery support plate 3. At this time, cooling gas is introduced into the air-cooling space 5, and the gas flow can take away the heat generated by the lithium battery; at the same time, cooling liquid is introduced into the liquid-cooling space 6. At this time, the temperature of the liquid-cooling space 6 where the cooling liquid is located is lower than the temperature in the air-cooling space 5, so the liquid-cooling space 6 can provide cooling for the air-cooling space 5, indirectly improving the heat dissipation effect of the lithium battery; A strip ventilation groove 9 connected to the external environment is arranged above the air-cooling space 5. The function of the strip ventilation groove 9 is to allow the air-cooling space 5 to directly contact the lower end surface of the lithium battery, which can achieve a better heat dissipation effect; but the strip ventilation groove 9 is not a standard configuration. This is an optional structure. Usually, the battery tray 3 is not equipped with a strip ventilation groove 9.

[0029] In addition, a connecting pipe 7 is provided on the transverse partition 4 in the device to connect the air-cooling space 5 with the liquid-cooling space 6, and an atomizing nozzle 8 is provided at the upper end of the connecting pipe 7; when the coolant pressure in the liquid-cooling space 6 is sufficient, the atomizing nozzle 8 is opened, and the coolant will be sprayed into the air-cooling space 5 to cool the cooling gas in the air-cooling space 5, directly participating in the heat dissipation of the lithium battery.

[0030] like Figure 3As shown: the battery rack 2 is provided with a plurality of battery mounting compartments according to its structural array, and a mounting bar 10 is provided in each battery mounting compartment; a battery tray 3 is fixed to the upper end of the mounting bar 10; a connecting device 11 is provided between two laterally adjacent battery trays 3, and the connecting device 11 includes an air circuit connecting pipe 12 and a liquid circuit connecting pipe 13, the air circuit connecting pipe 12 connects the air cooling space 5 in the two adjacent battery trays 3, and the liquid circuit connecting pipe 13 connects the liquid cooling space 6 in the two adjacent battery trays 3.

[0031] Therefore, the lower end of the lithium battery contacts the upper part of the battery support plate 3, and the upper end of the lithium battery contacts the liquid cooling space 6 of the battery support plate 3; the liquid cooling space 6 is arranged below the air cooling space 5, mainly considering the principle of rising heat, and the heat generated by the lithium battery moves more upward, so the space above the lithium battery has higher heat, and it is more reasonable to arrange the liquid cooling space 6 with better heat absorption effect at the top; At this time, the number of battery trays 3 corresponds to the number of lithium battery packs, and the battery trays 3 are fixed on the mounting strip 10; the air cooling spaces 5 in the battery trays 3 at the same level are connected through the air path connecting pipe 12, and the liquid cooling spaces 6 in the battery trays 3 at the same level are connected through the liquid path connecting pipe 13.

[0032] The device is not only provided with heat dissipation for the upper and lower parts of the lithium battery, but also for the rear part of the lithium battery; specifically, a cooling integrated plate 14 is provided at the rear end of the battery rack 2, an integrated space is provided in the cooling integrated plate 14, and the middle of the integrated space is divided by a vertical partition 15 to form a cooling medium input space 16 and a cooling medium output space 17; like Figure 7 As shown: the function of the cooling medium input space 16 is mainly to input gas to the air cooling space 5, and its auxiliary function is to install a pipeline for supplying coolant to the liquid cooling space 6; the function of the cooling medium output space 17 is mainly to output the gas passing through the air cooling space 5, and its auxiliary function is to install a pipeline for outputting coolant to the liquid cooling space 6; The cooling medium input space 16 and the cooling medium output space 17 actually also contain cooling gas and coolant in the pipeline; therefore, the cooling medium input space 16 and the cooling medium output space 17 also have the effects of heat absorption and heat dissipation; and can play a role in heat dissipation at the rear of the lithium battery.

[0033] like Figure 8 , Fig. 9 As shown: the cooling medium input space 16 is provided with an air inlet groove 18 penetrating the cooling integrated plate 14 and a liquid inlet pipe 19 penetrating the cooling integrated plate 14; a connecting groove 20 corresponding to the front and rear positions of the air inlet groove 18 is provided at the rear end of the battery support plate 3 at one end, and the connecting groove 20 is connected to the air cooling space 5; the liquid inlet pipe 19 is connected to the liquid cooling space 6 in the battery support plate 3; An air outlet groove 41 penetrating the cooling integrated plate 14 and a liquid outlet pipe 21 penetrating the cooling integrated plate 14 are provided in the cooling medium output space 17; a connecting groove 20 corresponding to the front and rear positions of the air outlet groove 41 is also provided at the rear end of the battery tray 3 located at the other end, and the connecting groove 20 is connected to the air cooling space 5; the liquid outlet pipe 21 is connected to the liquid cooling space 6 in the battery tray 3.

[0034] The gas flow path in the device is as follows: when the exhaust fan 32 is turned on, the cooling gas will enter the cooling medium input space 16, and then pass through the air inlet groove 18 and the connecting groove 20 to enter the air cooling space 5 of the battery tray 3 at the end; after passing through multiple air cooling spaces 5, the gas is output from the air cooling space 5 at the other end and enters the cooling medium output space 17; The flow path of the coolant in the device is as follows: the high-pressure water pump 29 is turned on, the coolant is drawn from the water tank 30, passes through the liquid inlet pipe 19 located in the cooling medium input space 16, and enters the liquid cooling space 6 of the battery support plate 3 located at the end; after passing through multiple liquid cooling spaces 6, it is output from the liquid cooling space 6 at the other end and enters the liquid outlet pipe 21 in the cooling medium output space 17; Through the dual effects of cooling gas and cooling liquid, heat can be dissipated from the top, bottom and rear of the lithium battery, thereby improving the heat dissipation efficiency of the lithium battery.

[0035] At the same time, in order to improve the heat dissipation effect of the cooling medium input space 16 and the cooling medium output space 17 on the lithium battery, the device has horizontal averaging plates 22 arranged vertically in the cooling medium input space 16 and the cooling medium output space 17, and a plurality of medium channels 23 are formed between two adjacent horizontal averaging plates 22 and the inner surface of the cooling integrated plate 14, and an integrated channel 24 connected to the medium channel 23 is formed between the side of the vertical partition 15 and the inner surface of the cooling integrated plate 14; After the cooling gas enters the cooling medium input space 16, it first enters the integrated channel 24, and then enters the medium channel 23 connected to the integrated channel 24, which can make the entry of the cooling gas more balanced; similarly, after the cooling gas enters the cooling medium output space 17, it first enters the medium channel 23, and then enters the integrated channel 24, which can also make the output of the cooling gas more balanced.

[0036] The end of the liquid inlet pipe 19 is connected to the first horizontal pipe 25, and the end of the first horizontal pipe 25 is connected to the first integrated pipe 26; the end of the liquid outlet pipe 21 is connected to the second horizontal pipe 27, and the end of the second horizontal pipe 27 is connected to the second integrated pipe 28; the first integrated pipe 26 is connected to the high-pressure water pump 29, and the second integrated pipe 28 is connected to the water tank 30.

[0037] The coolant first enters the first integrated tube 26 in the cooling medium input space 16, and then enters the multiple first horizontal tubes 25 connected thereto, which can absorb the heat of the medium channel 23 to achieve the effect of heat dissipation for the lithium battery; similarly, the output of the coolant enters the cooling medium output space 17, first enters the second horizontal tube 27, and then enters the second integrated tube 28; it can also play a role in absorbing the heat of the medium channel 23.

[0038] The rear end surface of the cooling integrated plate 14 is provided with an exhaust pipe 31 connected to the cooling medium output space 17, and one end of the exhaust pipe 31 is connected to an exhaust fan 32; the output end of the exhaust fan 32 is connected to a gas-liquid separation device 33, and the gas-liquid separation device 33 is connected to the water tank 30; the rear end surface of the cooling integrated plate 14 is also provided with an air inlet hole 36 connected to the cooling medium input space 16.

[0039] like Fig.10 , Fig.11 As shown: the flow of gas in the present device relies on the exhaust fan 32. The operation of the exhaust fan 32 forms a negative pressure in the entire air flow channel, and the external cooling gas can be continuously replenished from the air inlet 36 into the air-cooled space 5 and the cooling medium input space 16 and the cooling medium output space 17; however, in order to improve the cooling effect of the air-cooled space 5, an atomizing nozzle 8 is provided in the present device, so there are many water molecules in the cooling gas, and these water molecules come from the coolant. In order to avoid the coolant, gas-liquid separation is required to separate the coolant from the gas, so the present device is provided with a gas-liquid separation device 33.

[0040] The exhaust fan 32 and the gas-liquid separation device 33 in the device are both arranged in the installation box 34, and the gas-liquid separation device 33 is arranged below the exhaust fan 32; the exhaust fan 32 includes a mounting seat 321, and the mounting seat 321 is fixed in the installation box 34 through a fixing strip 35; a fan housing 322 is arranged on the mounting seat 321, and blades are arranged in the fan housing 322, and a pulley driving device 323 is arranged on the blades, and the pulley driving device 323 is connected to a driving motor 324; An air inlet pipe 325 is disposed at the upper end of the fan housing 322 , and an air expansion pipe 326 is connected to the end of the air inlet pipe 325 ; an air guide pipe 327 is disposed on one side of the fan housing 322 , and the air guide pipe 327 is connected to the gas-liquid separation device 33 .

[0041] The air expansion pipe 326 in the device is connected to the air extraction pipe 31.

[0042] The gas-liquid separation device 33 includes a separation tank 331, which is conical in shape. An air inlet pipe 332 connected to the air guide pipe 327 is provided at the upper part of the separation tank 331, and a liquid output pipe 333 is provided at the lower end of the separation tank 331, and a liquid storage tank 334 is connected to the end of the liquid output pipe 333; a gas output pipe 335 is provided at the upper end of the separation tank 331, and an output fan 336 is connected to the upper end of the gas output pipe 335; When the gas and liquid are separated, the exhaust fan 32 guides the gas-liquid mixture into the separation tank 331 of the gas-liquid separation device 33 through the air guide pipe 327; at the same time, when the gas-liquid mixture enters, it enters the separation tank 331 through the tangential rectangular air inlet pipe 332 at the upper part of the separation tank 331, and makes a spiral rotation from top to bottom along the inner wall of the separation tank 331; at the same time, under the action of centrifugal force, the liquid particles are thrown to the separation tank 331 and separated from the air flow, and under the action of gravity, they slide along the tank wall inside the separation tank 331 to the liquid output pipe 333 of the conical separation tank 331, and finally enter the liquid storage tank 334; After the gas with liquid particles removed reaches the bottom of the conical separation tank 331, it turns upward and rotates upward along the axis, and is finally discharged from the gas output pipe 335 at the top; the principle is that due to the high-speed rotation of the airflow, a negative pressure is generated in the central axis area of ​​the separation tank 331. After the airflow reaches the bottom of the cone, it is sucked by the negative pressure and then discharged upward along the central axis; at the same time, in order to enhance the suction of the negative pressure, the device is provided with an output fan 336 at the upper end of the separation tank 331. The output fan 336 works to exhaust air from the central axis area of ​​the separation tank 331, thereby enhancing the pressure in the negative pressure area and improving the efficiency of the airflow output.

[0043] A conduit is provided between the liquid storage tank 334 and the water tank 30 in the device, and a solenoid valve and a pump body are provided in the conduit. When the pump body and the solenoid valve are opened, the water in the liquid storage tank 334 can be pumped into the water tank 30 to complete the recycling.

[0044] The flow of the coolant in this device relies on a high-pressure water pump 29. The high-pressure water pump 29 pumps water out of the water tank 30, enters the liquid cooling space 6 through the liquid inlet pipe 19, and then enters the liquid cooling space 6 through the first integrated pipe 26, the first horizontal pipe 25, and the liquid inlet pipe 19, and then flows back to the water tank 30 through the liquid outlet pipe 21, the second horizontal pipe 27, and the second integrated pipe 28, completing the circulation of the coolant.

[0045] The front and rear end surfaces of the container 1 are provided with mounting grooves corresponding to the front and rear positions of the air inlet holes 36, and the mounting grooves are provided with air inlet grilles 37. In order to prevent impurities in the external environment from entering the air cooling system, the device is provided with air inlet grilles 37, and the number of air inlet grilles 37 is four, two of which are provided at the front end of the container 1 and two at the rear end of the container 1.

[0046] The container 1 in the device has limited capacity, and three battery racks 2 form a group. Four groups of battery racks 2 are arranged in the container 1, which are arranged on the front and back sides of the container 1; two distribution cabinets 38 are arranged between two groups of battery racks 2 on the same side; the function of the distribution cabinet 38 is to stabilize the power supply and energy storage.

[0047] A lighting lamp 39 is provided on the top of the container 1, and a revolving door 40 is provided on one side of the container 1. The lighting lamp 39 is used to provide lighting light; the revolving door 40 is used to facilitate the staff to enter the container 1 for inspection and maintenance.

[0048] The cooling method of the energy storage battery container of the device includes: S1: Start the exhaust fan 32, and the cooling gas enters the cooling medium input space 16 through the air inlet 36; S2: The cooling gas passes through the air inlet groove 18 in the cooling medium input space 16 and the connecting groove 20 in the air cooling space 5 at the end, and then enters the air cooling space 5 from the cooling medium input space 16; S3: After passing through the middle multiple air-cooling spaces 5, the cooling gas enters the cooling medium output space 17 from the connecting groove 20 in the air-cooling space 5 at the other end; S4: The cooling gas passes through the cooling medium output space 17 and enters the exhaust fan 32 to complete the air cooling work; S5: Start the high-pressure water pump 29, and the high-pressure cooling liquid fills the liquid cooling space 6 through the liquid inlet pipe 19; S6: Open the valve of the atomizing nozzle 8, and the cooling liquid is sprayed into the air-cooling space in an atomized state and flows along with the air flow; S7: The gas extracted by the exhaust fan 32 is input into the gas-liquid separation device 33 to separate the gas and liquid and recover the cooling liquid.

[0049] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A cooling device for an energy storage battery container, characterized in that: The invention comprises a container (1), wherein a battery rack (2) is arranged in the container (1), a battery support plate (3) is arranged on the battery support plate (2), and the battery is arranged on the battery support plate (3); wherein a cooling space is arranged in the battery support plate (3), and a transverse partition plate (4) is formed in the middle of the cooling space to form an air-cooling space (5) for gas to pass through and a liquid-cooling space (6) for liquid to pass through; a connecting pipe (7) for connecting the air-cooling space (5) with the liquid-cooling space (6) is also arranged on the transverse partition plate (4), and an atomizing nozzle (8) is arranged at the upper end of the connecting pipe (7).

2. The cooling device for an energy storage battery container according to claim 1, characterized in that: The battery rack (2) is provided with a plurality of battery installation compartments according to its structural array, and each of the battery installation compartments is provided with a mounting bar (10); the battery support plate (3) is fixed to the upper end of the mounting bar (10); a connecting device (11) is provided between two laterally adjacent battery support plates (3), and the connecting device (11) comprises an air circuit connecting pipe (12) and a liquid circuit connecting pipe (13); the air circuit connecting pipe (12) connects the air cooling spaces (5) in the two adjacent battery support plates (3), and the liquid circuit connecting pipe (13) connects the liquid cooling spaces (6) in the two adjacent battery support plates (3).

3. The cooling device for an energy storage battery container according to claim 2, characterized in that: A cooling integrated plate (14) is provided at the rear end of the battery rack (2), an integrated space is provided in the cooling integrated plate (14), and the middle of the integrated space is divided by a vertical partition (15) to form a cooling medium input space (16) and a cooling medium output space (17); an air inlet groove (18) penetrating the cooling integrated plate (14) and a liquid inlet pipe (19) penetrating the cooling integrated plate (14) are provided in the cooling medium input space (16); a connecting groove (20) corresponding to the front and rear position of the air inlet groove (18) is provided at the rear end of the battery support plate (3) located at one end, and the connecting groove (20) is connected to the air cooling space (5); and the liquid inlet pipe (19) is connected to the liquid cooling space (6) in the battery support plate (3).

4. The cooling device for an energy storage battery container according to claim 3, characterized in that: An air outlet groove (41) penetrating the cooling integrated plate (14) and a liquid outlet pipe (21) penetrating the cooling integrated plate (14) are provided in the cooling medium output space (17); a connecting groove (20) corresponding to the front and rear positions of the air outlet groove (41) is also provided at the rear end of the battery support plate (3) at the other end, and the connecting groove (20) is connected to the air cooling space (5); and the liquid outlet pipe (21) is connected to the liquid cooling space (6) in the battery support plate (3).

5. The cooling device for the energy storage battery container according to claim 4, characterized in that: The cooling medium input space (16) and the cooling medium output space (17) are both vertically arranged with transverse equalizing plates (22), and a plurality of medium channels (23) are formed between two adjacent transverse equalizing plates (22) and the inner surface of the cooling integrated plate (14), and an integrated channel (24) communicating with the medium channel (23) is formed between the side surface of the vertical partition plate (15) and the inner surface of the cooling integrated plate (14); the end of the liquid inlet pipe (19) is connected to a first horizontal pipe (25), and the end of the first horizontal pipe (25) is connected to a first integrated pipe (26); the end of the liquid outlet pipe (21) is connected to a second horizontal pipe (27), and the end of the second horizontal pipe (27) is connected to a second integrated pipe (28); the first integrated pipe (26) is connected to a high-pressure water pump (29), and the second integrated pipe (28) is connected to a water tank (30).

6. The cooling device for the energy storage battery container according to claim 5, characterized in that: The rear end surface of the cooling integrated plate (14) is provided with an exhaust pipe (31) in communication with the cooling medium output space (17); one end of the exhaust pipe (31) is connected to an exhaust fan (32); the output end of the exhaust fan (32) is connected to a gas-liquid separation device (33); the gas-liquid separation device (33) is connected to the water tank (30); the rear end surface of the cooling integrated plate (14) is also provided with an air inlet hole (36) in communication with the cooling medium input space (16).

7. The cooling device for an energy storage battery container according to claim 6, characterized in that: The exhaust fan (32) and the gas-liquid separation device (33) are both arranged in an installation box (34), and the gas-liquid separation device (33) is arranged below the exhaust fan (32); the exhaust fan (32) comprises a mounting seat (321), and the mounting seat (321) is fixed in the mounting box (34) via a fixing strip (35); a fan casing (322) is arranged on the mounting seat (321), blades are arranged in the fan casing (322), a pulley driving device (323) is arranged on the blades, and the pulley driving device (323) is connected to a driving motor (324); an air inlet pipe (325) is arranged at the upper end of the fan casing (322), and an air diffuser pipe (326) is connected to the end of the air inlet pipe (325); an air guide pipe (327) is arranged on one side of the fan casing (322), and the air guide pipe (327) is connected to the gas-liquid separation device (33).

8. The cooling device for an energy storage battery container according to claim 7, characterized in that: The front and rear end surfaces of the container (1) are arranged in mounting grooves corresponding to the front and rear positions of the air inlet holes (36), and an air inlet grille (37) is arranged in the mounting groove.

9. The cooling device for an energy storage battery container according to claim 8, characterized in that: The battery racks (2) are grouped into three, and the container (1) is provided with four groups of battery racks (2), which are arranged at the front and rear sides of the container (1); two power distribution cabinets (38) are arranged between two groups of battery racks (2) on the same side; a lighting lamp (39) is arranged at the top of the container (1), and a revolving door (40) is arranged at one side of the container (1).

10. A cooling method for an energy storage battery container, characterized in that: The method is based on the cooling device for energy storage battery container described in any one of claims 1 to 9 above; the method comprises: S1: starting the exhaust fan (32), and the cooling gas enters the cooling medium input space (16) through the air inlet hole (36); S2: the cooling gas passes through the air inlet groove (18) in the cooling medium input space (16) and the connecting groove (20) in the air cooling space (5) at the end, and then enters the air cooling space (5) from the cooling medium input space (16); S3: the cooling gas passes through multiple air cooling spaces (5) in the middle and then enters the cooling medium output space (17) from the connecting groove (20) in the air cooling space (5) at the other end; S4: the cooling gas enters the exhaust fan (32) after passing through the cooling medium output space (17), and the air cooling work is completed; S5: starting the high-pressure water pump (29), and the high-pressure cooling liquid fills the liquid cooling space (6) through the liquid inlet pipe (19); S6: opening the valve of the atomizing nozzle (8), and the cooling liquid is sprayed into the air cooling space in an atomized state and flows with the air flow; S7: The gas extracted by the exhaust fan (32) is input into the gas-liquid separation device (33) to separate the gas and liquid and recover the cooling liquid.

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