CN117254507B - Energy storage management system based on photovoltaic cell - Google Patents
Energy storage management system based on photovoltaic cell Download PDFInfo
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- CN117254507B CN117254507B CN202311518170.4A CN202311518170A CN117254507B CN 117254507 B CN117254507 B CN 117254507B CN 202311518170 A CN202311518170 A CN 202311518170A CN 117254507 B CN117254507 B CN 117254507B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 57
- 230000017525 heat dissipation Effects 0.000 claims abstract description 35
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 230000005484 gravity Effects 0.000 claims description 31
- 238000001704 evaporation Methods 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 21
- 239000003507 refrigerant Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 8
- 230000003993 interaction Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000012983 electrochemical energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H01M10/65—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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an energy storage management system based on a photovoltaic cell, which comprises a photovoltaic cell module, a control module and an energy storage module. The photovoltaic battery module is in signal connection with the control module, the control module is in signal connection with the energy storage module, electricity sent by the photovoltaic battery module is distributed to a user load, a power grid and the energy storage module through the control module, the energy storage module comprises a battery mounting frame, a radiating unit and a mounting carrier, the battery mounting frame comprises a plurality of battery bins and support columns, the battery bins are in a flat cuboid shape, the support columns are hollow cylinders with two ends communicated, the axes of the support columns are perpendicular to the ground, the battery bins are mounted on the side faces of the support columns and are arranged in an annular equidistant array along the side faces of the support columns, and the plane where the shortest side and the longest side of each battery bin are located is parallel to the ground. The invention solves the problems of high cost and poor heat dissipation effect of the energy storage system of the photovoltaic cell in the prior art.
Description
Technical Field
The invention relates to the field of battery management, in particular to an energy storage management system based on photovoltaic cells.
Background
In the prior art, the most economical and mature energy storage mode is electrochemical energy storage, with the arrival of new energy age, the energy density is greatly improved from a traditional storage battery to a lithium battery, but the following problems are very troublesome, especially the overheating problem of the lithium battery is solved on the premise of not keeping the existing cost, and the application of the electrochemical energy storage is very difficult to popularize.
For the battery overheat, the mode that most uses among the prior art is through increasing the fan and utilizing the air conditioner to reduce the temperature, but the overheated problem of battery still can take place, because when the battery is closely placed, the air is difficult to circulate, leads to the heat transfer inefficiency, even use the air conditioner to reduce ambient temperature, still hardly play the effect to the concentrated heating area of battery.
In the prior art, the technology with better heat dissipation is water cooling, but a water cooling heat dissipation mechanism is too huge and has high manufacturing cost, and the technology is not feasible in the civil photovoltaic energy storage field except for the extremely individual high-precision field.
Therefore, there is a need for an energy storage system with low cost and good heat dissipation.
Disclosure of Invention
The invention aims to provide an energy storage management system based on a photovoltaic cell, which aims to solve the problems of high cost and poor heat dissipation effect of the energy storage system of the photovoltaic cell in the prior art.
An energy storage management system based on photovoltaic cells comprises a photovoltaic cell module, a control module and an energy storage module. The photovoltaic battery module is in signal connection with the control module, and the control module is in signal connection with the energy storage module, so that electricity sent by the photovoltaic battery module is distributed to a user load, a power grid and the energy storage module through the control module, and the energy storage module comprises a battery mounting frame, a radiating unit and a mounting carrier.
The use scene of the photovoltaic cell is usually in a region with larger sunshine, and the large sunshine is equivalent to the extremely high air temperature, which is extremely fatal to the energy storage, because a large amount of heat can be generated in the energy storage process, the phenomenon of overheating of the battery occurs, and the spontaneous combustion or explosion of the battery is extremely caused, so the heat dissipation capacity of the energy storage of the photovoltaic cell must reach the standard.
The battery mounting frame comprises a plurality of battery bins and support columns, wherein the battery bins are flat cuboid, the support columns are hollow cylinders with two through ends, the axes of the support columns are perpendicular to the ground, the battery bins are mounted on the side faces of the support columns and are arranged along annular equidistant arrays of the side faces of the support columns, and the plane where the shortest side and the longest side of each battery bin are located is parallel to the ground.
The heat dissipation unit is used for releasing heat released by the battery in the battery compartment to the outside of the energy storage module.
The battery mounting frame and the heat dissipation unit are arranged in the mounting body or on the mounting carrier.
According to the structure, a certain angle is formed between the adjacent battery bins while the battery bins keep high density, according to the principle of aerodynamics, the viscous resistance of the fluid is increased when the fluid passes through a narrow space, the fluid is led to a place with larger space, the area which needs heat dissipation is poor in heat dissipation, and the air convection is poor.
Preferably, a plurality of battery mounting frames are longitudinally assembled to form a battery mounting frame group, the axes of all support columns in the same battery mounting frame group are overlapped, the lower face of the lowest battery mounting frame is fixedly arranged on the bottom face of a mounting carrier of the battery mounting frame through hollow support, the positions of battery bins of adjacent battery mounting frames are corresponding, a support plate for supporting is arranged in the middle of each adjacent battery bin, and the thickness of the support plate is identical to the distance between the adjacent battery bins.
The structure increases the density of the battery compartment, ensures the structural strength of the battery mounting rack, and ensures the heat dissipation of the battery compartment.
Preferably, the heat dissipation unit comprises gravity heat pipes, the quantity of the gravity heat pipes is the same as that of the battery bins in one battery mounting rack, the gravity heat pipes are respectively arranged between two adjacent battery bins, each gravity heat pipe comprises a cold end and a hot end, the cold ends are used for absorbing heat, the hot ends are used for releasing heat, the cold ends are downwards vertically inserted into the middle of the adjacent battery bins, and a water tank is arranged below the cold ends.
The gravity heat pipe absorbs heat and releases heat through evaporation and the circulation of gravity to the refrigerant, so that heat can be continuously transferred from the cold end to the hot end without any other energy consumption, and the gravity heat pipe is arranged between the two battery bins to exchange heat in the area with the most concentrated temperature, thereby maximally dissipating heat.
Preferably, the heat dissipation unit further comprises a blower and a convection circulation cylinder, the convection circulation cylinder is a hollow cylinder, a hollow hemisphere top cover is fixedly arranged at the upper end of the convection circulation cylinder, the lower end of the convection circulation cylinder is fixed with the bottom surface of the installation carrier, the convection circulation cylinder and the top cover seal the battery installation frame group, the blower and the cold end of the heat pipe, through holes for inserting the heat pipe are formed in the top cover, the blower is fixedly arranged in the support column, the position of the blower is at the hollow position of the support column, the wind direction of the blower is perpendicular to the ground, and the hot end of the gravity heat pipe penetrates out of the top cover of the hollow hemisphere but is lower than the top of the installation carrier.
The convection circulation cylinder and the blower improve the heat exchange efficiency, the blower accelerates the air convection, and the top cover of the hollow hemispheroid re-enables the cooled air to enter convection circulation, so that the battery compartment is continuously cooled.
Preferably, the heat dissipation unit further comprises a cooling device, and the cooling device comprises a compressor, an evaporation pipe, a throttling device, a condenser, an indoor fan and an outdoor fan. Wherein the compressor, the condenser and the outdoor fan are all arranged outside the installation carrier, the evaporating pipe and the throttling device are arranged in the installation carrier, and the evaporating pipe and the indoor fan are arranged in the installation carrier. One end of the evaporating pipe is connected with one end of the compressor, the other end of the compressor is connected with one end of the condenser, the other end of the condenser is connected with one end of the throttling device, the other end of the throttling device is connected with the other end of the evaporating pipe, the throttling device and the condenser are respectively provided with a refrigerant, the evaporating pipe absorbs heat in an installation carrier to enable the refrigerant to be gasified, then the refrigerant enters the compressor, the refrigerant is heated and pressurized in the compressor and is output to the condenser, the outdoor fan cools the condenser, the refrigerant is liquefied into high-pressure low-temperature liquid, then the refrigerant enters the throttling device, the pressure is released through a capillary tube, the refrigerant is changed into low-pressure low-temperature liquid, and then the refrigerant reenters the evaporating pipe, and a new cycle is started.
When the temperature in the installation carrier is too high, the heat exchange efficiency of the heat pipe can be very low, so that the heat sink can bring continuous low temperature to the hot end of the heat pipe so as to maintain the heat exchange efficiency of the heat pipe, and the heat pipe intensively discharges all the temperatures in the battery installation frame, so that the use quantity of air conditioners and fans is greatly reduced, and the cost is greatly saved while the better heat dissipation effect is realized.
Preferably, the mounting carrier comprises a waterproof structure, a fireproof structure and a lightning protection structure.
Preferably, the battery mounting frame group, the gravity heat pipe, the blower, the convection circulation cylinder and the hollow hemispheroidal top cover form a minimum energy storage and heat dissipation unit, and a plurality of minimum energy storage and heat dissipation units are all installed in the mounting carrier, so that the number of the cooling devices is increased adaptively, and the heat exchange requirement is met.
Preferably, the energy storage module further comprises a battery unit, a battery detection unit and a battery control unit, and the battery unit, the battery detection unit and the battery control unit are all installed and fixed in the installation carrier.
Preferably, the support plate comprises a copper sheet and a support interlayer. Wherein the copper sheet is annular, a groove is formed in the inner arc surface of the annular, and the supporting interlayer is arranged in the groove.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the shape of the battery compartment is a flat cuboid, the support column is a hollow cylinder with two through ends, the axis of the support column is vertical to the ground, a plurality of battery compartments are arranged on the side face of the support column and are arranged along the side face of the support column in an annular equidistant array, wherein the plane where the shortest side and the longest side of the battery compartment are located is parallel to the ground, so that a certain angle is formed between every two adjacent battery compartments when the battery compartments keep high density, according to the aerodynamic principle, when fluid passes through a narrow space, the viscous resistance of the fluid can be increased, the fluid can lead to a place with larger space, the area requiring heat dissipation is poorer in heat dissipation, the air convection is worse, and the adjacent battery compartments are provided with angles, so that air does not form resistance to the adjacent battery compartments when passing through the place, and the convection heat dissipation is increased.
2. The gravity heat pipe absorbs heat and releases heat through evaporation and the circulation of gravity to the refrigerant, so that heat can be continuously transferred from the cold end to the hot end without any other energy consumption, and the gravity heat pipe is arranged between the two battery bins to exchange heat in the area with the most concentrated temperature, thereby maximally dissipating heat.
3. The convection circulation cylinder and the blower improve the heat exchange efficiency, the blower accelerates the air convection, and the top cover of the hollow hemispheroid re-enables the cooled air to enter convection circulation, so that the battery compartment is continuously cooled.
4. When outdoor temperature is too high, heat exchange efficiency of the heat pipe can be very low, so that the heat sink can bring continuous low temperature to the hot end of the heat pipe so as to maintain heat exchange efficiency of the heat pipe, and the heat pipe intensively discharges all temperatures in the battery mounting frame, so that the number of used air conditioners and fans is greatly reduced, and the cost is greatly saved while better heat dissipation effect is realized.
5. The side wall of the mounting carrier is provided with a ventilation opening, and a ventilation window is hinged on the ventilation opening. When outdoor temperature is lower, the installation carrier can exchange heat of the heat pipe by opening the ventilation window, so that loss of electric energy can be greatly reduced, and cost is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic diagram of the energy supply relationship of the present invention;
FIG. 2 is a schematic view of the structure of a battery mount;
FIG. 3 is a schematic structural view of a support plate;
FIG. 4 is a schematic view of the structure of a battery mount assembly;
FIG. 5 is a schematic view of a battery mount assembly and a blower;
FIG. 6 is a schematic view of a battery mount assembly and hollowed-out support;
FIG. 7 is a schematic view of a battery mount assembly and a gravity assisted heat pipe;
FIG. 8 is a schematic structural view of a convection circulation barrel;
FIG. 9 is a schematic diagram I of a mounting carrier and a heat dissipating unit;
FIG. 10 is a schematic diagram II of a mounting carrier and a heat dissipating unit;
FIG. 11 is a schematic diagram of an inclusion relationship of an energy storage module;
FIG. 12 is a schematic view I of a support plate in example 4;
fig. 13 is a schematic view ii of the support plate in example 4.
The reference numerals are represented as follows: the solar cell module comprises a 1-photovoltaic cell module, a 2-control module, a 3-energy storage module, a 4-cell mounting rack, a 5-radiating unit, a 6-mounting carrier, a 7-cell bin, an 8-support column, a 9-support plate, a 10-gravity heat pipe, an 11-blower, a 12-convection circulation cylinder, a 13-hollow hemispherical top cover, a 14-hollow support, a 15-copper sheet and a 16-support interlayer.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention. It should be noted that the present invention is already in a practical development and use stage.
Example 1
According to the fig. 1-11, a photovoltaic cell-based energy storage management system comprises a photovoltaic cell module 1, a control module 2 and an energy storage module 3. The photovoltaic cell module 1 is in signal connection with the control module 2, the control module 2 is in signal connection with the energy storage module 3, and electricity sent out by the photovoltaic cell module 1 is distributed to a user load, a power grid and the energy storage module 3 through the control module, wherein the energy storage module 3 comprises a battery mounting frame 4, a heat radiating unit 5 and a mounting carrier 6.
The battery mounting frame 4 comprises 20 battery bins 7 and support columns 8, wherein the battery bins 7 are in a flat cuboid shape, the support columns 8 are hollow cylinders with two through ends, the axes of the support columns 8 are perpendicular to the ground, the 20 battery bins 7 are mounted on the side faces of the support columns 8 and are arranged in an annular equidistant array along the side faces of the support columns 8, and the plane where the shortest side and the longest side of each battery bin 7 are located is parallel to the ground.
The heat dissipation unit 5 is used for releasing heat released by the batteries in the battery compartment 7 out of the energy storage module 3.
The battery mounting frame 4 and the heat dissipation unit 5 are both disposed within the mounting carrier 6 or mounted on the mounting carrier 6.
The structure ensures that a certain angle is formed between the adjacent battery bins 7 while the battery bins 7 keep high density, and according to the principle of aerodynamics, the viscous resistance of the fluid is increased when the fluid passes through a narrow space, so that the fluid can lead to a place with larger space, the area requiring heat dissipation is poorer in heat dissipation, the air convection is worse, and the angle is formed between the adjacent battery bins 7, so that the air does not form resistance to the narrow space when passing through the place, and the convection heat dissipation is increased.
In this embodiment, 5 battery mounting frames 4 are longitudinally assembled and mounted to form a battery mounting frame group, the axes of all support columns 8 in the same battery mounting frame group are all coincident, wherein the lower face of the lowest battery mounting frame 4 is fixedly mounted on the bottom face of a mounting carrier 6 of the battery mounting frame 4 through a hollowed-out support 14, the positions of battery bins 7 of adjacent battery mounting frames 4 are corresponding, a support plate 9 for supporting is arranged in the middle of each adjacent battery bin 7, and the thickness of the support plate 9 is identical to the distance between the adjacent battery bins 7.
The above structure increases the density of the battery compartment 7, and simultaneously ensures the structural strength of the battery mounting frame 4, and in addition, ensures the heat dissipation of the battery compartment 7.
In this embodiment, the heat dissipation unit 5 includes gravity heat pipes 10, the number of gravity heat pipes 10 is the same as the number of battery bins 7 in one battery mounting rack 4, a plurality of gravity heat pipes 10 are respectively disposed between two adjacent battery bins 7, the gravity heat pipes 10 include a cold end and a hot end, wherein the cold end is used for absorbing heat, the hot end is used for releasing heat, the cold end is downward and vertically inserted into the middle of the adjacent battery bins 7, and a water tank is disposed below the cold end.
The gravity assisted heat pipe 10 absorbs heat and condenses the heat release through evaporation and the circulation of the gravity to the refrigerant, so that the heat can be continuously transferred from the cold end to the hot end without any other energy consumption, and the gravity assisted heat pipe 10 is arranged between the two battery bins 7 to exchange heat in the region with the most concentrated temperature, thereby maximally dissipating the heat.
Working principle: the adjacent battery bins 7 have included angles and are not placed in parallel at small intervals, so that the phenomenon of viscous obstruction can not occur when air flows into the middle of the battery bins 7, and air convection is smoother and convection heat exchange is more efficient;
and secondly, the gravity assisted heat pipe 10 continuously conducts the heat of the cold end to the hot end through the heat exchange of the coolant, so that the rapid heat transfer is realized while no energy source is consumed, and the heat generated by the battery is conducted to the outside of the mounting carrier 6, so that the heat is difficult to collect between the battery bins 7, and the risk of overheating the battery is fundamentally prevented.
Example 2
According to fig. 1-11, in the embodiment 1, unlike the embodiment 1, in this embodiment, the heat dissipating unit 5 further includes a blower 11 and a convection circulation tube 12, the convection circulation tube 12 is a hollow cylinder, a hollow hemispherical top cover 13 is fixedly installed at the upper end of the convection circulation tube 12, the lower end of the convection circulation tube is fixed to the bottom surface of the installation carrier 6, the convection circulation tube 12 and the top cover enclose the battery installation frame group, the blower 11 and the cold end of the heat pipe, through holes for inserting the heat pipe are formed in the top cover, the blower 11 is fixedly installed in the support column 8, the position of the blower is at the hollow position of the support column 8, the wind direction of the blower 11 is perpendicular to the ground, the tube radius of the convection circulation tube 12 is greater than the distance from the tube center to the outermost point of the battery compartment 7, and the hot end of the gravity heat pipe 10 penetrates out of the top of the hollow hemispherical top cover 13 but is lower than the top of the installation carrier 6.
It will be appreciated that in this embodiment, the blower 11 is a motor driven fan of the prior art, the motor and fan being mounted within the support column 8 by a mounting bracket.
The convection circulation barrel 12 and the blower 11 improve the heat exchange efficiency, the blower 11 accelerates the air convection, and the top cover of the hollow hemispheroids re-enters the convection circulation, so that the battery compartment 7 is continuously cooled.
In this embodiment, the heat dissipation unit 5 further includes a cooling device including a compressor, an evaporation tube, a throttling device, a condenser, an indoor fan, and an outdoor fan. Wherein the compressor, condenser and outdoor fan are all mounted outside the mounting carrier 6, and the evaporating pipe and throttle device are mounted in the mounting carrier 6, wherein the evaporating pipe and indoor fan are mounted in the mounting carrier 6. One end of the evaporating pipe is connected with one end of the compressor, the other end of the compressor is connected with one end of the condenser, the other end of the condenser is connected with one end of the throttling device, the other end of the throttling device is connected with the other end of the evaporating pipe, the throttling device and the condenser are respectively provided with a refrigerant, the evaporating pipe absorbs heat in the installation carrier 6 to enable the refrigerant to be gasified, then the refrigerant enters the compressor, the refrigerant is heated and pressurized in the compressor and is output to the condenser, the outdoor fan cools the condenser, the condensing agent is liquefied into high-pressure low-temperature liquid, then the condensing agent enters the throttling device, the pressure is released through a capillary tube, the condensing agent is changed into low-pressure low-temperature liquid, and then the refrigerant reenters the evaporating pipe to start a new cycle. It will be appreciated that the compressor, evaporator, throttle device, condenser are all prior art and their purpose is to actively create a low temperature environment by electrical energy so as to maintain the heat exchange efficiency of the gravity assisted heat pipe 10 of the battery when the temperature in the mounting carrier 6 is too high.
When outdoor temperature is too high, heat exchange efficiency of the heat pipe can be very low, so that the heat sink can bring continuous low temperature to the hot end of the heat pipe to maintain heat exchange efficiency of the heat pipe, and the heat pipe intensively discharges all temperatures in the battery mounting frame 4, so that the number of used air conditioners and fans is greatly reduced, and the cost is greatly saved while better heat dissipation effect is realized.
Working principle: the convection circulation barrel 12 creates a closed environment, and after the blower 11 is started, air in the closed environment is stirred, so that the air is circulated in the space continuously, and the air with different temperatures tends to be at the same temperature after being stirred, so that the overheat caused by temperature accumulation at a certain place is reduced. In addition, the support at the bottom end of the support column 8 is hollow, and the top cover is a hollow hemisphere, so that air can better circulate in flowing, and the specific flowing track is shown in fig. 7.
Because the larger the temperature difference between the hot end of the gravity assisted heat pipe 10 and the heat exchange medium is, the more the heat sink plays an indispensable role when rapid cooling is required.
Example 3
According to fig. 1 to 11, unlike embodiment 2, in this embodiment, the side wall of the mount carrier 6 is provided with a ventilation opening, and ventilation windows are hinged to the ventilation opening. When the outdoor temperature is low, the installation carrier 6 can exchange heat of the heat pipe by opening the ventilation window, so that the loss of electric energy can be greatly reduced, and the cost is saved.
In this embodiment, the mounting carrier 6 comprises a waterproof structure, a fire extinguishing structure, a lightning protection structure. The fire-proof unit comprises a fire-extinguishing spray head, a smoke open fire detector and a carbon dioxide gas storage tank, wherein the fire-extinguishing spray head is connected with the smoke open fire detector in a signal manner, the fire-extinguishing spray head is connected with the carbon dioxide gas storage tank, and when the smoke open fire detector detects open fire or smoke, the fire-extinguishing spray head automatically opens a switch to spray carbon dioxide of the carbon dioxide gas storage tank into the waterproof unit.
The lightning protection unit comprises a lightning rod, the needle point of the lightning rod is higher than the highest height of the waterproof unit, and the lightning rod is grounded.
Preferably, the energy storage management system based on the photovoltaic cell further comprises a battery capacity detection unit, the battery capacity detection unit is in signal connection with the storage battery unit, capacity detection can be carried out on each battery in the storage battery unit, when certain battery capacity is unmatched with other battery capacities, maintenance and replacement are timely notified, the battery capacity detection unit comprises a detection circuit, an alarm circuit, an information interaction circuit and an interaction device, the detection circuit is in signal connection with the storage battery unit, the detection circuit, the alarm circuit and the information interaction are integrated in the interaction device, and the interaction device reminds whether the battery needs to be replaced or maintained in a mode of image, sound and remote information transmission.
In this embodiment, one of the battery mounting frame sets, 20 gravity assisted heat pipes 10, 1 blower 11, 1 convection circulation cylinder 12 and 1 hollow hemisphere top cover 13 form a minimum energy storage and heat dissipation unit 5, and 4 minimum energy storage and heat dissipation units 5 are all mounted in the mounting carrier 6, and the number of the cooling devices is adaptively increased to meet the heat exchange requirement.
In this embodiment, the energy storage module 3 further includes a battery unit, a battery detection unit, and a battery control unit, and the battery unit, the battery detection unit, and the battery control unit are all installed and fixed in the installation carrier 6.
Working principle: the plurality of minimum energy storage radiating units 5 are assembled in one installation carrier 6, so that the integration of the energy storage modules 3 is realized, the management and the transportation are convenient, and when the photovoltaic power plant is used specifically, the energy storage modules 3 with different sizes can be assembled according to the scale of the photovoltaic power plant, so that the flexible use of different occasions is realized.
Example 4
According to fig. 1 to 13, on the basis of example 3, the support plate 9 includes a copper sheet 15, a support interlayer 16, unlike example 3. Wherein the copper sheet 15 is circular, a groove is formed on the inner arc surface of the copper sheet 15, the supporting interlayer 16 is installed in the groove, and the supporting interlayer 16 is made of a material with poor heat conductivity, such as hard plastic.
Working principle: copper has excellent heat conduction performance, and this structure is through setting up the recess to install the poor support intermediate layer of heat conduction in the recess, so make the heat between the upper and lower adjacent battery compartment conduct to the outside through the copper sheet, and exchange heat fast along with the wind, thoroughly avoided the overheated possibility between the upper and lower adjacent battery compartment.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The energy storage management system based on the photovoltaic cell comprises a photovoltaic cell module (1), a control module (2) and an energy storage module (3), and is characterized in that the photovoltaic cell module (1) is in signal connection with the control module, the control module is in signal connection with the energy storage module (3), so that electricity emitted by the photovoltaic cell module (1) is distributed to a user load, a power grid and the energy storage module (3) through the control module, and the energy storage module (3) comprises a battery mounting frame (4), a radiating unit (5) and a mounting carrier (6);
the battery mounting frame (4) comprises a plurality of battery bins (7) and support columns (8), wherein the battery bins (7) are in a flat cuboid shape, each support column (8) is a hollow cylinder with two through ends, the axis of each support column (8) is perpendicular to the ground, the battery bins (7) are mounted on the side surfaces of the support columns (8) and are arranged in an annular equidistant array along the side surfaces of the support columns (8), and the plane where the shortest side and the longest side of each battery bin (7) are located is parallel to the ground;
the heat radiating unit (5) is used for releasing heat released by the battery in the battery bin (7) to the outside of the energy storage module (3);
the battery mounting frame (4) and the heat radiating unit (5) are both arranged in the mounting carrier (6) or mounted on the mounting carrier (6).
2. The photovoltaic cell-based energy storage management system according to claim 1, wherein a plurality of battery mounting frames (4) are longitudinally assembled to form a battery mounting frame group, the axes of all support columns (8) in the same battery mounting frame group are overlapped, the lower face of the lowest battery mounting frame (4) is fixedly arranged on the bottom face of a mounting carrier (6) of the battery mounting frame (4) through a hollowed-out support (14), the positions of battery bins (7) of adjacent battery mounting frames (4) are corresponding, a support plate (9) for supporting is arranged in the middle of each adjacent battery bin (7), and the thickness of the support plate (9) is identical with the distance between the adjacent battery bins (7).
3. The photovoltaic cell-based energy storage management system according to claim 2, wherein the heat dissipating unit (5) comprises gravity heat pipes (10), the number of the gravity heat pipes (10) is the same as the number of the battery bins (7) in one battery mounting rack (4), a plurality of gravity heat pipes (10) are respectively arranged between two adjacent battery bins (7), the gravity heat pipes (10) comprise a cold end and a hot end, wherein the cold end is used for absorbing heat, the hot end is used for releasing heat, the cold end is downwards vertically inserted into the middle of the adjacent battery bins (7), and a water tank is arranged below the cold end.
4. A photovoltaic cell-based energy storage management system according to claim 3, wherein the heat dissipation unit (5) further comprises a blower (11) and a convection circulation cylinder (12), the convection circulation cylinder (12) is a hollow cylinder, a hollow hemispherical top cover (13) is fixedly arranged at the upper end of the convection circulation cylinder, the lower end of the convection circulation cylinder is fixedly connected with the bottom surface of the installation carrier (6), the battery installation frame group, the blower (11) and the cold end of the heat pipe are sealed by the convection circulation cylinder (12) and the top cover, a through hole for inserting the heat pipe is formed in the top cover, the blower (11) is fixedly arranged in the support column (8) and is positioned at the hollow position of the support column (8), the wind direction of the blower (11) is perpendicular to the ground, and the hot end of the gravity heat pipe (10) penetrates out of the top of the hollow hemispherical top cover (13) but is lower than the top of the installation carrier (6).
5. The photovoltaic cell-based energy storage management system according to claim 4, wherein the heat dissipating unit (5) further comprises a heat sink comprising a compressor, an evaporation tube, a throttle device, a condenser, an indoor fan, and an outdoor fan, wherein the compressor, the condenser, and the outdoor fan are all mounted outside the mounting carrier (6), the evaporation tube, the throttle device are mounted in the mounting carrier (6), wherein the evaporation tube and the indoor fan are mounted in the mounting carrier (6), one end of the evaporation tube is connected with one end of the compressor, the other end of the compressor is connected with one end of the condenser, the other end of the condenser is connected with one end of the throttle device, the other end of the throttle device is connected with the other end of the evaporation tube, and the evaporation tube, the throttle device, and the condenser are each provided with a refrigerant.
6. The photovoltaic cell-based energy storage management system according to claim 5, wherein the battery mounting frame group, the gravity heat pipe (10), the blower (11), the convection circulation cylinder (12) and the hollow hemispherical top cover (13) form a minimum energy storage heat dissipation unit (5), the plurality of minimum energy storage heat dissipation units (5) are all installed in the mounting carrier (6), and the number of the cooling devices is increased adaptively so as to meet the heat exchange requirement.
7. The energy storage management system based on photovoltaic cells according to claim 1, characterized in that the energy storage module (3) further comprises a battery cell, a battery detection unit, a battery control unit, all mounted and fixed in a mounting carrier (6).
8. The photovoltaic cell-based energy storage management system according to claim 2, wherein the support plate (9) comprises a copper sheet (15) and a support interlayer (16), wherein the copper sheet (15) is ring-shaped, a groove is formed in the inner arc surface of the copper sheet (15), and the support interlayer (16) is installed in the groove.
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| CN117254507A (en) | 2023-12-19 |
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