CN116799370B - Air cooling heat dissipation device, heat dissipation control method and energy storage battery system - Google Patents
Air cooling heat dissipation device, heat dissipation control method and energy storage battery system Download PDFInfo
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- CN116799370B CN116799370B CN202311056878.2A CN202311056878A CN116799370B CN 116799370 B CN116799370 B CN 116799370B CN 202311056878 A CN202311056878 A CN 202311056878A CN 116799370 B CN116799370 B CN 116799370B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 96
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 54
- 238000001816 cooling Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004378 air conditioning Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims description 30
- 238000007664 blowing Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to an air-cooling heat dissipation device, a heat dissipation control method and an energy storage battery system, wherein the device comprises an annular air duct, an air conditioning module and a wind pressure compensation module; the air duct comprises an air conditioner air supply outlet and an air outlet; the air conditioning module blows cold air into the air duct through the air conditioner air supply opening, and the air duct blows the cold air in the air duct to the battery cluster group through each air outlet; the wind pressure compensation module is used for carrying out wind pressure compensation when the wind pressure of each place in the wind channel is unbalanced, so that the wind pressure of each place in the wind channel is the same, the wind pressure of each place in the wind channel is ensured to be consistent through the structure, the temperature and the wind speed of wind blown to the battery stack through each air outlet are further ensured to be the same, and the problem of uneven distribution of the wind quantity and the cold quantity in the energy storage battery system is effectively avoided. The device, the method and the system can be used for well radiating when in operation, so that each battery in the energy storage battery system is always maintained within a reasonable temperature difference range, and the device, the method and the system have the characteristics of stable performance, easy maintenance and long service life.
Description
Technical Field
The invention relates to the technical field of heat dissipation of energy storage battery systems, in particular to an air cooling heat dissipation device of an energy storage battery system, a heat dissipation control method and the energy storage battery system.
Background
Along with the development of the energy storage industry, the energy density of the box type energy storage battery system is higher and higher, and particularly, the energy type energy storage battery system is accompanied by the increase of the energy density, and the heating value of the battery cluster group is also higher and higher. Each energy storage battery system generally comprises a battery stack formed by a plurality of rows of battery cluster groups which are arranged at intervals and positioned in a hot area, each battery cluster group comprises a plurality of battery modules (namely battery PACK) which are arranged in a stacking manner, and each battery module is arranged in a corresponding battery cabinet. In order to ensure that the energy storage battery system is in a good working state, the temperature of the system needs to be maintained in a reasonable temperature interval in actual operation. To achieve this objective, in the industry, an air conditioner is usually disposed in an energy storage battery system and a forced air cooling heat dissipation mode is used in combination with a fan to cool a hot zone (i.e. a zone where a battery is placed). However, the forced air cooling heat dissipation mode of arranging the air conditioner blower in the system is easy to have the problems of uneven local air quantity and cold quantity distribution, difficult later maintenance and the like, and the temperature of each battery cluster in the operation period is difficult to be maintained in a reasonable temperature difference range.
How to ensure that the temperatures of all the battery clusters and the corresponding battery modules in the energy storage battery system keep good consistency is a problem to be solved.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. The air cooling heat dissipation device provided by the invention has the advantages of reasonable structural design, easiness in operation and control, and capability of effectively guaranteeing the consistency of the temperatures of all battery clusters in an energy storage battery system and stable performance. Therefore, the invention also provides a heat dissipation control method of the air-cooled heat dissipation device and an energy storage battery system comprising the air-cooled heat dissipation device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect of the present invention, an air cooling device of an energy storage battery system is provided, where the energy storage battery system includes two rows of oppositely arranged battery cluster groups, a preset distance is formed between the two rows of battery cluster groups, and a hot zone is formed in a space where the two rows of battery cluster groups are located, and the air cooling device of the energy storage battery system is characterized in that the air cooling device of the energy storage battery system includes an air duct, an air conditioning module and a wind pressure compensation module; the air conditioner module is communicated with the air duct, and the air pressure compensation module is arranged in the air duct;
the air duct is annular and comprises an air conditioner air supply outlet and an air outlet;
the air conditioner module blows cold air into the air duct through the air conditioner air supply opening, and the air duct blows the cold air in the air duct to the battery cluster group through each air outlet;
the wind pressure compensation module is used for carrying out wind pressure compensation when the wind pressure of each place in the air duct is unbalanced, so that the wind pressure of each place in the air duct is the same;
the air duct comprises two diagonally arranged air conditioner air supply outlets, the air duct comprises a plurality of sections of communicated sub-air duct areas and a plurality of air outlets, each air outlet is respectively positioned in the corresponding sub-air duct area, and the air pressure compensation module comprises an air pressure compensation unit, an air pressure monitoring unit and a control unit;
the wind pressure compensation unit comprises at least two wind pressure compensation modules, and each wind pressure compensation module is used for selectively compensating wind pressure of the corresponding sub-air duct area;
the wind pressure monitoring unit is used for monitoring the wind pressure of each sub-air duct area and obtaining wind pressure monitoring data corresponding to each sub-air duct area;
the control unit is respectively connected with each wind pressure compensation module and each wind pressure monitoring unit, and the control unit controls the corresponding wind pressure compensation module to compensate the wind pressure of the corresponding sub-air duct area according to the monitored wind pressure monitoring data, so that the wind pressure of each place in the air duct is the same.
The air-cooled heat dissipation device of the energy storage battery system, wherein,
each wind pressure compensation module consists of a corresponding fan, and the position of each fan is used as the head end position of the corresponding sub-air duct area;
the wind pressure monitoring unit comprises a plurality of wind pressure transmitters, and each wind pressure transmitter is respectively arranged in the corresponding sub-air duct area in the air duct so as to monitor the wind pressure in the corresponding sub-air duct area;
the control unit is composed of a controller.
The air cooling device of the energy storage battery system, wherein the air duct comprises two sections of sub air duct areas which are evenly divided and communicated, the air pressure compensation unit comprises two air pressure compensation modules, and the two air pressure compensation modules are respectively used for selectively compensating air pressure in the two sub air duct areas.
The air cooling heat dissipation device of the energy storage battery system is characterized in that two fans are symmetrically arranged in the air duct.
According to the air cooling heat dissipation device of the energy storage battery system, the air outlets are symmetrically arranged in two opposite areas in the air duct, and the two air pressure compensation modules are respectively arranged in the other two opposite areas, in which the air outlets are not arranged, in the air duct.
The air cooling heat dissipation device of the energy storage battery system, wherein each air outlet is arranged towards the interval gap of the corresponding battery cluster in the battery cluster group.
According to the air cooling heat dissipation device of the energy storage battery system, the air channel is provided with the diversion channel towards the surface of the battery cluster group, so that the cold air blown out of the air outlet is conducted to the corresponding interval gap of the battery cluster through the diversion channel.
The air-cooling heat dissipation device of the energy storage battery system, wherein the air-cooling heat dissipation device of the energy storage battery system further comprises:
and the fan module is used for extracting hot air generated by each battery cluster group and blowing the hot air to the hot area.
The air cooling device of the energy storage battery system comprises a plurality of fans, wherein each fan is arranged on a battery cabinet where a corresponding battery module in the battery cluster group is located, and each fan is used for extracting and blowing hot air generated by the corresponding battery module in the battery cabinet to the hot area.
The air cooling heat dissipation device of the energy storage battery system is characterized in that a heat insulation layer is arranged on the inner wall surface of the air duct.
In a second aspect of the present invention, there is provided a heat dissipation control method of the above device, the method comprising:
the wind pressure compensation module monitors the wind pressure at all positions in the air duct and judges whether the wind pressure at all positions in the air duct is balanced or not;
if the wind pressure of each place in the air channel is unbalanced, wind pressure compensation is carried out on the area with lower wind pressure, so that the wind pressure of each place in the air channel is the same.
In a third aspect of the present invention, an energy storage battery system is provided, including the air-cooled heat dissipation device of the energy storage battery system, the battery cluster group and the energy storage box, where the air-cooled heat dissipation device of the energy storage battery system and the battery cluster group are both disposed in the energy storage box, and a space where the battery cluster group is located in the energy storage box forms the hot zone.
In the energy storage battery system, the two rows of the battery cluster groups are respectively attached to two surfaces of the energy storage box, and the air outlets are arranged above the corresponding battery cluster groups.
Compared with the prior art, the air-cooling heat dissipation device, the heat dissipation control method and the energy storage battery system have the following beneficial effects:
the invention provides an air cooling heat dissipation device of an air cooling heat dissipation device, which comprises an annular air duct, an air conditioning module and an air pressure compensation module, wherein the annular air duct structure can enable cold air blown into the air duct by the air conditioning module to flow uniformly, and the annular structural design of the air duct can ensure that even when heat dissipation is carried out on a battery cluster group containing different numbers of battery clusters in an energy storage battery system, the air pressure blown to each battery cluster is equal, so that the unbalance of the temperature among batteries is avoided;
the air cooling heat dissipation device of the energy storage battery system further comprises a fan module, so that hot air generated by the battery cluster group is pumped out and blown to the hot area, heat is effectively prevented from being gathered in the area where the single battery module is located, the temperature field inside the battery cabinet where the battery module is located is improved, and the temperature difference of air inside each battery cabinet is reduced;
meanwhile, the heat insulation layer is arranged on the inner wall surface of the air duct, so that the problem that condensation water drops on the air duct due to overlarge temperature difference between the inside and the outside of the air duct wall is solved;
the air cooling device of the energy storage battery system is controlled by the heat dissipation control method, so that the temperature of a battery stack consisting of battery clusters in the energy storage battery system can be effectively ensured to be maintained within a reasonable temperature difference range during operation, and the problems of uneven local air quantity and cold quantity distribution are avoided.
The energy storage battery system with the air cooling heat dissipation device of the energy storage battery system can be well cooled during operation, and the battery is always maintained in a reasonable temperature difference range, so that the air cooling heat dissipation device has the characteristics of stable performance, easy maintenance and long service life.
Drawings
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Fig. 1 is a schematic structural diagram of an energy storage battery system according to an embodiment of the present invention.
Fig. 2 is a partial enlarged view of the area a in fig. 1.
Fig. 3 is a top view of an energy storage battery system in an embodiment of the invention.
FIG. 4 is a block diagram of the wind pressure compensation unit, the wind pressure monitoring unit and the control unit according to an embodiment of the present invention.
Fig. 5 is a flowchart of a heat dissipation control method according to an embodiment of the invention.
Reference numerals
1. Air duct
11. Air outlet
12. Air conditioner air supply outlet
13. Diversion channel
14. Sub-duct region
15. Inner wall surface
2. Air conditioner
3. Wind pressure compensation module
31. Wind pressure compensation unit
311. Wind pressure compensation module
32. Wind pressure monitoring unit
33. Control unit
4. Blower fan
5. Battery stack
51. Battery cluster group
511. Battery cluster
6. Thermal zone
7. Battery cabinet
Detailed Description
The invention is further described with reference to the following detailed description in order to make the technical means, the inventive features, the achieved objects and the effects of the invention easy to understand. The present invention is not limited to the following examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention.
Fig. 1 is a schematic structural diagram of an energy storage battery system according to an embodiment of the present invention. Fig. 2 is a partial enlarged view of the area a in fig. 1. Fig. 3 is a top view of an energy storage battery system in an embodiment of the invention. Fig. 4 is a block diagram of the wind pressure compensation unit 31, the wind pressure monitoring unit 32 and the control unit 33 according to an embodiment of the present invention. As shown in fig. 1 to 4, in an embodiment, the energy storage battery system includes an air-cooled heat dissipation device of the energy storage battery system, a battery stack 5, and an energy storage tank. The air-cooled heat dissipation device of the energy storage battery system and the battery stack 5 are both arranged in the energy storage box, a hot zone 6 is arranged in the space where the battery stack 5 is located in the energy storage battery system, and the hot zone 6 forms a heat dissipation area of the battery cluster 511, namely, as shown in fig. 1, the area where the air-cooled heat dissipation device of the energy storage battery system and the battery stack 5 are not arranged in the energy storage box forms the hot zone 6. It should be noted that, for the sake of convenience for those skilled in the art to understand the structural features of the present solution, the energy storage box is not drawn in the drawings, it should be understood that the energy storage box is a box structure, which covers the air cooling device of the energy storage battery system and the outside of the battery stack 5, and meanwhile, in practical application, the top surface of the air duct 1 in the air cooling device of the energy storage battery system is a closed structure, so that those skilled in the art can better observe the internal structural layout of the air duct 1, and the top surface of the air duct 1 is not drawn currently.
The energy storage box is a closed box body, so that the cell stack 5 in the hot zone 6 in the box body and the air flow in the hot zone 6 do not participate in external thermal circulation.
In a preferred embodiment, other devices such as fire extinguishing devices and the like can be arranged in the energy storage battery system, and related devices can be arranged outside the energy storage box.
In this embodiment, the battery stack 5 includes two rows of battery cluster groups 51 (left and right clusters respectively) disposed in the hot zone 6, each battery cluster group 51 includes a plurality of battery clusters 511 disposed at intervals, each battery cluster 511 includes a plurality of battery modules disposed in the corresponding battery cabinets 7 respectively, and each battery cabinet 7 in each battery cluster 511 is stacked; the two rows of battery cluster groups 51 are respectively attached to two surfaces of the energy storage box, a preset interval is formed between the two rows of battery cluster groups 51, and the interval distance in specific application can be set according to actual requirements without special limitation.
In this embodiment, the air cooling device of the energy storage battery system includes an air duct 1, an air conditioning module and a wind pressure compensation module 3; the air conditioner module is communicated with the air duct 1, and the air pressure compensation module 3 is arranged in the air duct 1;
the air duct 1 is annular, and the air duct 1 comprises an air conditioner air supply outlet 12 and a plurality of air outlets 11, wherein the number of the air outlets 11 is matched with that of the battery clusters 511, so that cold air can be blown to the corresponding battery clusters 511 through the corresponding air outlets 11;
as shown in fig. 1 and fig. 3, when the air cooling device of the energy storage battery system is used for cooling the energy storage battery system, because the air duct is of an annular structure, air flow can flow in the air duct more smoothly, and therefore even when two rows of battery cluster groups comprising different numbers of battery clusters are used for cooling, the air quantity obtained by each battery cluster in the two battery cluster groups positioned at two sides of the energy storage box can be ensured to be equal.
The air conditioning module blows cold air into the air duct 1 through the air conditioner air supply opening 12, and the air duct 1 blows the cold air in the air duct 1 to the battery cluster group 51 through each air outlet 11;
the wind pressure compensation module 3 is used for carrying out wind pressure compensation when the wind pressure of each place in the air duct 1 is unbalanced, so that the wind pressure of each place in the air duct 1 is the same.
The air conditioning module may be configured to perform a cooling process on the hot air extracted from the hot area 6, and blow the cold air obtained by the cooling process into the air duct 1 through the air-conditioning air supply opening 12, where the cold air in the air duct 1 is blown to the direction of each of the battery cluster groups 51 in the battery stack 5 through each of the air outlets 11. Because the air duct 1 is of an annular structure, cold air blown into the air duct 1 by the air conditioning module can flow uniformly, and meanwhile, the air pressure compensation module 3 can be utilized to compensate air pressure when the air pressure at each position in the air duct 1 is unbalanced, so that the air pressure at each position in the air duct 1 is further ensured to be the same, the temperature and the air speed of the cold air blown to the battery cluster group 51 through each air outlet 11 are ensured to be the same, the problem of nonuniform distribution of air quantity and cold quantity in the energy storage battery system is effectively avoided, and the purpose of reducing the air temperature difference in the energy storage box is achieved.
In this embodiment, the air duct 1 includes several sections of sub-air duct 1 regions (note that the air duct 1 is not divided in absolute physical sense, but only divided into several sections with controllable wind pressure, the sections do not necessarily have clear boundaries, the sub-air duct regions 14 are still communicated with each other), each air outlet (11) is located in a corresponding sub-air duct region (14), and the wind pressure compensation module 3 includes a wind pressure compensation unit 31, a wind pressure monitoring unit 32 and a control unit 33;
the wind pressure compensation unit 31 includes a plurality of wind pressure compensation modules 311, and each wind pressure compensation module 311 is configured to selectively compensate wind pressure of the corresponding sub-air duct area 14;
the wind pressure monitoring unit 32 is configured to monitor wind pressures of the respective sub-air duct areas 14, and obtain wind pressure monitoring data corresponding to the respective sub-air duct areas 14;
the control unit 33 is connected to each wind pressure compensation module 311 and the wind pressure monitoring unit 32, and the control unit 33 controls the corresponding wind pressure compensation module 311 to compensate the wind pressure of the corresponding sub-air duct area 14 according to the monitored wind pressure monitoring data, so that the wind pressure of each place in the air duct 1 is the same.
In this embodiment, the control unit 33 is used to collect wind pressure monitoring data collected by the wind pressure monitoring unit 32 in each wind channel 1, and then control the working state of the wind pressure compensating unit 31 according to the wind pressure monitoring data, so as to effectively ensure that the wind pressures in the sub wind channel areas 14 are consistent, and further ensure that the wind pressures and the temperatures of the wind outlets 11 located in the sub wind channel areas 14 blown to the battery cluster group 51 are consistent.
Each wind pressure compensation module 311 in the preferred embodiment is composed of a corresponding fan, and the position of each fan is taken as the head end position of the corresponding sub-air duct area 14;
the wind pressure monitoring unit 32 includes a plurality of wind pressure transmitters (wind pressure transmitters are not drawn in the figure), and each wind pressure transmitter is respectively disposed in a corresponding sub-air duct area 14 in the air duct 1 to monitor wind pressure in the corresponding sub-air duct area 14; in practical application, only one wind pressure transmitter can be arranged in each sub-air duct area 14, and a plurality of wind pressure transmitters can be arranged in one sub-air duct area 14 to improve the accuracy of data monitoring, for example, a wind pressure transmitter can be respectively arranged at two adjacent sides of each wind pressure compensation module 311, whether the wind pressure at two sides of each wind pressure compensation module 311 is balanced can be judged by judging the wind pressure difference at two sides of each wind pressure compensation module 311, and the specific arrangement position of the wind pressure transmitter is not limited to this; in other embodiments, other sensors with wind pressure monitoring function can be used instead of the wind pressure transmitter;
the control unit 33 is constituted by a controller, which may be a PLC (i.e., a programmable logic controller), an MCU (i.e., a micro control unit), or other controller having a control function. In other embodiments, the control unit 33 may also be formed by a main control module in the energy storage battery system, and the main control module uniformly controls the air conditioning module, the wind pressure compensation module 3, and other modules.
As shown in fig. 1 and 3, the air duct 1 in this embodiment includes two diagonally arranged air-conditioning air supply openings 12, and the corresponding air-conditioning module in this embodiment includes two air conditioners 2, where each air conditioner 2 is connected to a corresponding air-conditioning air supply opening 12 respectively (in other embodiments, a single air conditioner may be used to supply air to the two air-conditioning air supply openings 12, but not limited thereto). The cold air is blown into the air channel 1 by the two air conditioner air supply outlets 12 which are relatively arranged in the air channel 1, so that the cold air can better form convection in the air channel 1, the cold air pressure circulated above the two battery cluster groups 51 which are relatively arranged is further ensured to be basically consistent, the uniformity of the internal temperature of the energy storage box is effectively improved, the temperature difference of the air blown to each battery cluster group 51 is effectively reduced, and the purpose of uniformly reducing the air temperature difference in the energy storage box is achieved.
In this embodiment, the air duct 1 includes two sub-air duct areas 14 which are uniformly divided and communicated by the air pressure compensation module 311, and the air pressure compensation unit 31 includes two air pressure compensation modules 311, where the two air pressure compensation modules 311 are respectively used to selectively compensate for air pressure in the two sub-air duct areas 14. As shown in fig. 1, the two wind pressure compensation modules 311 are disposed at positions of the bottom of the annular air duct 1, where the battery pack 51 is not disposed, and it should be noted that the wind pressure compensation module 311 in fig. 1 is only a representation of the position of the wind pressure compensation module 311, and not the wind pressure compensation module 311 is the shape, and when the wind pressure compensation module 311 is implemented, a fan, a blower or other devices with wind pressure compensation functions may be used to form the corresponding wind pressure compensation module 311. The wind pressure compensation module 311 can be directly arranged in the air duct 1, and can directly utilize the air flow in the air duct 1 to perform wind pressure compensation, and can also extract the air flow outside the air duct 1 to compensate the wind pressure in the corresponding sub-air duct area 14 in the air duct 1, when the air flow outside the air duct 1 is adopted to perform wind pressure compensation, the air outlet of the wind pressure compensation module 311 can be only arranged in the air duct 1, and other components can also be arranged outside the air duct 1.
In the embodiment, the two fans are symmetrically arranged in the air duct, so that the effect of uniform air quantity in the air duct can be better achieved.
The air outlets 11 are symmetrically arranged in two opposite areas of the air duct 1, and the two air pressure compensation modules 311 are respectively arranged in the other two opposite areas of the air duct 1, where the air outlets 11 are not arranged. That is, the wind pressure compensation module 311 is disposed in the air duct 1 in the area where the air outlet 11 is not disposed.
As shown in fig. 1 and 3, in this embodiment, each air outlet 11 in the air duct 1 is disposed on a surface of the air duct 1 facing the battery stack 5, each air outlet 11 is disposed above a corresponding battery cluster group 51, and each air outlet 11 is disposed at a spacing gap of a corresponding battery cluster 511 in the battery cluster group 51.
The air duct 1 is provided with a diversion channel 13 on the surface facing the battery cluster group 51 so as to divert the cold air blown out from the air outlet 11 to the interval gap of the corresponding battery cluster 511 through the diversion channel 13.
Air-cooled heat abstractor of energy storage battery system still includes:
and a fan module for drawing out the hot air generated from each battery cluster group 51 and blowing the hot air toward the hot zone 6. Through the setting of fan module, can avoid the heat accumulation that each battery module produced unable effluvium in battery cabinet 7, influence the heat dissipation.
As shown in fig. 1 and 2, in a preferred embodiment, the fan module includes a plurality of fans 4, each fan 4 is mounted on the battery cabinet 7 where the corresponding battery module in the battery cluster group 51 is located, and each fan 4 is configured to draw out and blow hot air generated by the battery module in the corresponding battery cabinet 7 toward the hot zone 6. The hot air in the hot zone 6 is extracted from the return air inlet of the air conditioner 2 to refrigerate, the hot air is blown to the annular air duct 1 from the air outlet 11 after being refrigerated by the air conditioner 2, cold air blown into the annular air duct 1 by the air conditioner 2 is downwards led into gaps of the battery clusters 511 to dissipate heat, so that the cold air can be blown to two sides of each battery cluster 511, heat in the battery cabinet 7 where each battery module is located can be pumped to the hot zone 6, and therefore, when the system does not exchange heat with the outside, heat dissipation can be effectively guaranteed, and each battery module can operate at a proper temperature.
The inner wall surface 15 of the air duct 1 is provided with a heat insulation layer so as to reduce the problem of excessive condensation water drops caused by overlarge temperature difference between the inside and the outside of the wall of the air duct 1.
The air conditioner 2 in this embodiment can have a dehumidifying function, and the air conditioner 2 has a drain pipe to drain the dehumidified water of the air conditioner 2 through the drain pipe, providing a better working environment for the system.
The invention also provides a heat dissipation control method of the air cooling heat dissipation device for the energy storage battery system, which comprises the following steps:
the wind pressure compensation module 3 monitors wind pressure of each place in the air duct 1 and judges whether the wind pressure of each place in the air duct 1 is balanced or not;
if the wind pressure of each place in the air duct 1 is unbalanced, wind pressure compensation is performed on the area with lower wind pressure, so that the wind pressure of each place in the air duct 1 is the same.
The specific control flow of the method can also be shown in fig. 5, and the steps are as follows:
step 1: the wind pressure monitoring unit 32 monitors wind pressure of each sub-air duct region 14 in the air duct 1;
step 2: judging whether the wind pressure of each sub-air channel region 14 in the air channel 1 is balanced or not;
step 3: if the wind pressure of each sub-air duct area 14 in the air duct 1 is balanced, each wind pressure compensation module 311 is not started, and the above steps are returned; if the wind pressure of each sub-air duct area 14 is unbalanced, controlling the corresponding wind pressure compensation module 311 to start, compensating the wind pressure in the sub-air duct area 14 with lower wind pressure, and executing the subsequent step 4;
step 4: monitoring whether the wind pressure in each part of the air duct 1 is balanced by wind pressure compensation;
step 5: if the wind pressure in the air duct 1 is balanced, the step 1 is returned, and if the wind pressure in the air duct 1 is not balanced, the corresponding wind pressure compensation module 311 is driven to work continuously until the wind pressure in the air duct 1 is balanced, and the step 1 is returned.
According to the air cooling device, the heat dissipation control method and the energy storage battery system of the energy storage battery system, the air conditioner 2 is utilized to blow cold air into the annular air duct 1, the cold air in the annular air duct 1 is downwards led into the battery cabinet 7, the fans 4 are utilized to draw out hot air in the battery cabinet 7 where each battery module is located and blow the hot air to the hot area 6, the return air inlet of the air conditioner 2 draws out the hot air in the hot area 6, the hot air is blown out from the air outlet 11 after being cooled by the air conditioner 2, the internal temperature field of the battery cabinet 7 is improved, the temperature difference of air in the battery cabinet 7 is reduced, the aim of improving the internal temperature of the energy storage box and reducing the temperature difference of the air in the energy storage box is effectively achieved, and therefore the service life of the system is effectively prolonged, and the later maintenance difficulty is reduced.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (13)
1. The air cooling heat dissipation device of the energy storage battery system comprises two rows of oppositely arranged battery cluster groups (51), wherein the two rows of battery cluster groups (51) are spaced by a preset distance, and a hot zone (6) is formed in a space where the two rows of battery cluster groups (51) are located; the air conditioner module is communicated with the air duct (1), and the air pressure compensation module (3) is arranged in the air duct (1);
the air duct (1) is annular, and the air duct (1) comprises an air conditioner air supply outlet (12) and an air outlet (11);
the air conditioning module blows cold air into the air duct (1) through the air conditioning air supply outlet (12), and the air duct (1) blows the cold air in the air duct (1) to the battery cluster group (51) through each air outlet (11);
the wind pressure compensation module (3) is used for carrying out wind pressure compensation when the wind pressure of each place in the air duct (1) is unbalanced, so that the wind pressure of each place in the air duct (1) is the same;
the air duct (1) comprises two diagonally arranged air conditioner air supply outlets (12), the air duct (1) comprises a plurality of communicated sub-air duct areas (14) and a plurality of air outlets (11), each air outlet (11) is respectively positioned in the corresponding sub-air duct area (14), and the air pressure compensation module (3) comprises an air pressure compensation unit (31), an air pressure monitoring unit (32) and a control unit (33);
the wind pressure compensation unit (31) comprises at least two wind pressure compensation modules (311), and each wind pressure compensation module (311) is used for selectively compensating the wind pressure of the corresponding sub-air duct area (14);
each wind pressure compensation module (311) is composed of a corresponding fan;
the wind pressure monitoring unit (32) is used for monitoring the wind pressure of each sub-air duct area (14) to obtain wind pressure monitoring data corresponding to each sub-air duct area (14);
the control unit (33) is respectively connected with each wind pressure compensation module (311) and each wind pressure monitoring unit (32), and the control unit (33) controls the corresponding wind pressure compensation module (311) to compensate the wind pressure of the corresponding sub-air duct area (14) according to the monitored wind pressure monitoring data, so that the wind pressure of each part in the air duct (1) is the same.
2. The air-cooled heat sink of an energy storage battery system of claim 1, wherein,
the position of each fan is used as the head end position of the corresponding sub-air duct area (14);
the wind pressure monitoring unit (32) comprises a plurality of wind pressure transmitters, and each wind pressure transmitter is respectively arranged in the corresponding sub-air duct area (14) in the air duct (1) so as to monitor the wind pressure in the corresponding sub-air duct area (14);
the control unit (33) is formed by a controller.
3. The air-cooled heat dissipation device of an energy storage battery system according to claim 1, wherein the air duct (1) comprises two sections of sub-air duct areas (14) which are uniformly divided and communicated, the air pressure compensation unit (31) comprises two air pressure compensation modules (311), and the two air pressure compensation modules (311) are respectively used for selectively compensating the air pressure in the two sub-air duct areas (14).
4. An air-cooled heat sink for an energy storage battery system according to claim 3, wherein two of said fans are symmetrically disposed within said air duct (1).
5. The air-cooled heat dissipation device of an energy storage battery system according to claim 4, wherein a plurality of air outlets (11) are symmetrically arranged in two opposite areas of the air duct (1), and two air pressure compensation modules (311) are respectively arranged in the other two opposite areas of the air duct (1) where the air outlets (11) are not arranged.
6. The air-cooled heat dissipation device of an energy storage battery system according to claim 1, wherein each air outlet (11) is disposed toward a spacing gap of a corresponding battery cluster (511) in the battery cluster group (51).
7. The air-cooled heat dissipation device of an energy storage battery system according to claim 6, wherein a diversion channel (13) is arranged on a surface of the air duct (1) facing the battery cluster group (51) so as to divert the cold air blown out from the air outlet (11) to a corresponding interval gap of the battery cluster (511) through the diversion channel (13).
8. The air-cooled heat sink of an energy storage battery system of claim 1, further comprising:
and the fan module is used for extracting hot air generated by each battery cluster group (51) and blowing the hot air to the hot area (6).
9. The air-cooled heat sink of claim 8 wherein the heat sink comprises a heat sink,
the fan module comprises a plurality of fans (4), each fan (4) is arranged on a battery cabinet (7) where a corresponding battery module in the battery cluster group (51) is located, and each fan (4) is used for extracting hot air generated by the corresponding battery module in the battery cabinet (7) and blowing the hot air to the hot area (6).
10. The air-cooled heat dissipation device of an energy storage battery system according to claim 1, wherein an inner wall surface (15) of the air duct (1) is provided with a heat insulation layer.
11. A heat dissipation control method of the device according to any one of claims 1 to 10, characterized by comprising:
the wind pressure compensation module (3) monitors the wind pressure of each place in the air duct (1) and judges whether the wind pressure of each place in the air duct (1) is balanced or not;
if the wind pressure of each part in the air duct (1) is unbalanced, wind pressure compensation is carried out on the area with lower wind pressure, so that the wind pressure of each part in the air duct (1) is the same.
12. An energy storage battery system, characterized by comprising the air-cooled heat dissipation device, the battery cluster group (51) and an energy storage box according to any one of claims 1 to 10, wherein the air-cooled heat dissipation device and the battery cluster group (51) are both arranged in the energy storage box, and a hot zone (6) is formed in a space where the battery cluster group (51) is located in the energy storage box.
13. The energy storage battery system according to claim 12, wherein two rows of the battery cluster groups (51) are respectively attached to two faces of the energy storage box.
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| CN202311056878.2A CN116799370B (en) | 2023-08-22 | 2023-08-22 | Air cooling heat dissipation device, heat dissipation control method and energy storage battery system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006107788A (en) * | 2004-09-30 | 2006-04-20 | Sanyo Electric Co Ltd | Power supply apparatus |
| CN112601435A (en) * | 2020-12-31 | 2021-04-02 | 深圳市科信通信技术股份有限公司 | Air duct structure, micro-module machine room and micro-module control method |
| CN219286502U (en) * | 2022-06-27 | 2023-06-30 | 长沙理工大学 | Energy storage container temperature regulating device based on phase change material and annular air duct |
| CN116544563A (en) * | 2023-06-19 | 2023-08-04 | 广东新型储能国家研究院有限公司 | Thermal management control system, method, equipment and medium of battery energy storage device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006107788A (en) * | 2004-09-30 | 2006-04-20 | Sanyo Electric Co Ltd | Power supply apparatus |
| CN112601435A (en) * | 2020-12-31 | 2021-04-02 | 深圳市科信通信技术股份有限公司 | Air duct structure, micro-module machine room and micro-module control method |
| CN219286502U (en) * | 2022-06-27 | 2023-06-30 | 长沙理工大学 | Energy storage container temperature regulating device based on phase change material and annular air duct |
| CN116544563A (en) * | 2023-06-19 | 2023-08-04 | 广东新型储能国家研究院有限公司 | Thermal management control system, method, equipment and medium of battery energy storage device |
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