CN113948760A - Energy storage system with low energy consumption and uniform temperature and method thereof - Google Patents
Energy storage system with low energy consumption and uniform temperature and method thereof Download PDFInfo
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- CN113948760A CN113948760A CN202111245849.1A CN202111245849A CN113948760A CN 113948760 A CN113948760 A CN 113948760A CN 202111245849 A CN202111245849 A CN 202111245849A CN 113948760 A CN113948760 A CN 113948760A
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
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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
- H01M10/6554—Rods or plates
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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
- H01M10/6567—Liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses an energy storage system with low energy consumption and uniform temperature and a method thereof. The invention has the beneficial effects that: the heat-conducting plates which are tightly contacted with the battery are arranged on the upper surface, the lower surface, the left surface and the right surface of the battery pack, so that the multi-surface three-dimensional heat dissipation effect is achieved, and the heat-conducting plates are made of metal, so that the heat generated by the battery can be quickly conducted away; meanwhile, the water tank is contacted with a water storage tank arranged in the container, heat is conducted to water in the water storage tank, the temperature is slowly increased due to the large specific heat capacity of the water, and the temperature in the container is more uniform due to the indirect contact of the water with each battery; the water is changed after the temperature of the water rises to a certain temperature, and the purpose of controlling the efficiency is achieved by adjusting the water temperature and the water changing speed, so that the heat exchange part of the traditional liquid cooling does not need a complicated cooling pipeline design, the cost is greatly reduced, the energy consumption is less, the natural heat dissipation is utilized, and the environment is more friendly.
Description
Technical Field
The invention relates to an energy storage system, in particular to an energy storage system with low energy consumption and uniform temperature and a method thereof, belonging to the technical field of lithium ion batteries.
Background
At present, in the field of lithium ion batteries, because the service life of the lithium ion battery is shortened rapidly at high temperature and even safety risks are caused, the lithium ion battery needs a targeted heat dissipation design when being applied, particularly when being applied at a large magnification and for a long time. The current technical scheme mainly adopts a method of air cooling, also called air cooling and liquid cooling (mainly water cooling). In addition to the overall temperature reduction by the air conditioner, the air cooling generally includes a fan mounted on the battery pack, and the fan sucks hot air or blows cold air from the battery pack. The liquid cooling is that the heat in the battery pack is taken away through the flowing of cooling water by arranging liquid cooling pipelines in the battery pack. And to energy storage system energy density require high or under the limited condition of space and area, liquid cooling then is better selection, and present liquid cooling scheme divide into two parts mostly, and one part is liquid cooling board and the pipeline along with the battery package together, and another part is then heat transfer cooling part, and the coolant liquid passes to the heat here through compressor compression cooling and behind the heat transfer, and the heat gives off the outside and the coolant liquid circulation after the cooling.
With the prior art, there are the following disadvantages:
1. because the lithium ion battery has the advantages of high energy density, long service life, environmental protection and the like, the lithium ion battery is widely applied to the fields of energy storage, electric tools and automobiles. With the technological progress and the pressure reduction of cost, the lithium ion battery and the system thereof are developed towards large-scale and high energy density, which puts higher requirements on the heat dissipation and heat management of the battery and also puts new requirements on high space utilization rate and low load on the design of the system;
2. the technical scheme that the battery is wound by the heat conduction pipes in the liquid cooling mode is that the heat conduction pipes are used for winding the battery, water or cooling liquid is filled in the heat conduction pipes, heat of a battery pack is conducted out in time, the structure is complex, cost is high, the heat exchange part occupies a part of a large space inside the container, power consumption load is high, the structural design is complex, initial cost is high, maintenance is difficult, and the liquid cooling device is not friendly to the environment.
Disclosure of Invention
The invention aims to solve the problems and provide an energy storage system with low energy consumption and uniform temperature and a method thereof.
The invention realizes the purpose through the following technical scheme: an energy storage system with low energy consumption and uniform temperature comprises
The battery cluster is arranged in the container in an arrangement mode and consists of a plurality of battery packs arranged on a battery frame and a high-voltage box connected with the battery packs in series, and each battery pack consists of a battery module positioned inside and each cover plate positioned outside the battery module;
the water storage tank is positioned in the middle of the container and forms a closed structure from bottom to top and from left to right, a first water inlet A and a second water inlet A which are distributed vertically are formed in one side of the water storage tank, and a first water inlet B and a second water inlet B which are distributed vertically are formed in the other side of the water storage tank;
and the heat conduction assembly is composed of water cooling pipelines respectively arranged in each cover plate of the shell structure of the battery pack and water cooling pipelines arranged in the heat conduction partition plates, and the water cooling pipelines are communicated with the water storage tank through water inlets and water outlets.
As a still further scheme of the invention: the battery module is provided with two sets of side by side in the battery package to be provided with heat conduction baffle between two sets of battery modules, the apron in the battery module outside is including the curb plate that is located both sides respectively, set up the upper end plate in the top, set up the bottom plate in the below, set up the front bezel in the front side and set up the rear end plate at the rear side, and make by the good metal material of thermal conductivity curb plate, upper end plate, bottom plate and heat conduction baffle the tail end of seting up the inlet outlet all stretch out the outside at the rear end plate.
As a still further scheme of the invention: and an insulating heat-conducting fin is arranged between the battery module and the upper end plate.
As a still further scheme of the invention: the battery module comprises a front plate and a rear plate, wherein positive and negative terminals connected with the positive and negative electrodes of the battery module are arranged on the front plate, and a BMS acquisition module positioned below the positive and negative terminals is also arranged on the front plate.
As a still further scheme of the invention: the container is characterized in that a first water inlet A and a second water inlet A which are formed in one side of the water storage tank are communicated with a reservoir A which is arranged outside the container, and a first water inlet B and a second water inlet B which are formed in the other side of the water storage tank are communicated with a reservoir B which is arranged outside the container.
A temperature equalizing method of an energy storage system with uniform energy consumption and low temperature comprises the following steps:
1) firstly, placing one or more battery modules in a battery pack, wherein the battery modules are separated by a heat-conducting partition plate;
2) the heat-conducting partition board can be selectively designed into branches to be in contact with two large surfaces of the battery;
3) the upper part, the lower part, the left part and the right part of the battery pack are provided with a section extending out of the rear end plate of the battery pack, and the length is more than 5 cm;
4) an insulating heat-conducting fin is arranged between the upper end plate of the battery pack and the battery module, and other cover plates can be selectively added and are in close contact with the corresponding surface of the battery;
5) the partition plates between the cover plates and the modules of the battery pack are all made of materials with good heat conductivity, pipelines through which liquid such as water can pass are arranged in the plates, and water inlets and water outlets are all positioned at the outer ends of the extending parts of the plates;
6) assembling a battery pack;
7) the assembled battery pack is arranged on the battery frame and is arranged along the guide rail of the battery frame, the extending part of the battery pack just penetrates through the wall surface of the water storage tank of the container after being arranged, and enters the water storage tank, and the contact part is sealed, so that no water leakage is guaranteed;
8) all the battery packs and the high-voltage boxes are installed in the above way and connected in series to form an energy storage system;
9) the water storage tank is positioned in the middle of the container from bottom to top and from left to right to form a closed structure, the length and the height of the water storage tank are consistent with those of the container, and the width of the water storage tank can be calculated according to the heat productivity of the energy storage system and the preset water changing frequency;
10) two reservoirs A and B can be arranged outside the container, are used for storing water and cooling and can be shared with fire-fighting water;
11) when the energy storage system works, the water storage tank of the container is filled with water, the water enters the battery pack along the heat-conducting partition plates and the water-cooling pipelines arranged in the cover plates and is uniformly distributed in the battery pack, when the battery generates heat, the heat is rapidly transferred to the water in the water storage tank through the plates, and the temperature of the water slowly rises due to the large specific heat capacity of the water, so that the temperature distribution in the container is more uniform;
12) when the temperature of the water rises to a set value or the rising speed of the battery temperature is greater than the set value, the water in the water storage tank is discharged to the water tank B, and the water with lower temperature in the water tank A is introduced, so that the temperature is reduced, and the heat dissipation efficiency is improved;
13) after the energy storage system finishes working, water is cooled naturally or is cooled artificially and quickly, the water temperature is reduced to a set value when the energy storage system works again, and the water is guided into the water tank A from the water tank B and is recycled repeatedly.
The invention has the beneficial effects that:
1. the heat-conducting plates which are tightly contacted with the battery are arranged on the upper surface, the lower surface, the left surface and the right surface of the battery pack (the heat-conducting plates can also be connected with the branch circuits to be contacted with the other two surfaces of the battery), so that the multi-surface three-dimensional heat dissipation effect is achieved, and the heat-conducting plates are made of metal, have a better heat conduction effect and can quickly transfer away the heat generated by the battery;
2. meanwhile, the other end of the heat conducting plate is in contact with a water storage tank arranged in the container, heat is conducted to water in the water storage tank, the temperature rises slowly due to the large specific heat capacity of the water, and the temperature in the container is more uniform due to the indirect contact of the water with each battery;
3. the water is changed after the temperature of the water rises to a certain temperature, and the purpose of controlling the efficiency is achieved by adjusting the water temperature and the water changing speed, so that the heat exchange part of the traditional liquid cooling does not need a complicated cooling pipeline design, the cost is greatly reduced, the energy consumption is less, and the natural heat dissipation is utilized, so that the environment is more friendly.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a battery pack assembly structure according to the present invention;
FIG. 3 is a schematic view of a heat conductive partition plate according to the present invention;
fig. 4 is a schematic view of the structure of the protruding part of the battery pack according to the present invention.
In the figure: 1. the solar water heater comprises a battery cluster, 2, a water storage tank, 3, water inlets A, 4, water inlets A, B, 5, water inlets B, 6, water inlets B, 11, a battery module, 12, a front plate, 13, positive and negative terminals, 14, a BMS acquisition module, 15, side plates, 16, an upper end plate, 17, insulating heat conducting fins, 18, a heat conducting partition plate, 19, a bottom plate, 110, a rear end plate, 111, a water cooling pipeline, 112 and a water inlet and outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-4, an energy storage system with low energy consumption and uniform temperature comprises
The battery cluster 1 is arranged in the container in an arrangement mode and comprises a plurality of battery packs arranged on a battery frame and a high-voltage box connected with the battery packs in series, wherein each battery pack comprises a battery module 11 positioned inside and cover plates positioned on the outer side of the battery module 11;
the water storage tank 2 is positioned in the middle of the container and forms a closed structure from bottom to top and from left to right, one side of the water storage tank 2 is provided with a first water inlet A3 and a second water inlet A4 which are distributed up and down, and the other side of the water storage tank 2 is provided with a first water inlet B5 and a second water inlet B6 which are distributed up and down;
and the heat conduction assembly is composed of a water cooling pipeline 111 arranged in each cover plate of the battery pack shell structure and a water cooling pipeline 111 arranged in the heat conduction partition plate 18, and the water cooling pipeline 111 is communicated with the water storage tank 2 through a water inlet and a water outlet 112.
In the embodiment of the present invention, two sets of battery modules 11 are arranged side by side in the battery pack, and a heat conducting partition plate 18 is arranged between the two sets of battery modules 11, the cover plate on the outer side of the battery module 11 includes side plates 15 respectively located on two sides, an upper end plate 16 arranged on the upper side, a bottom plate 19 arranged on the lower side, a front plate 12 arranged on the front side, and a rear end plate 110 arranged on the rear side, and the side plates 15, the upper end plate 16, the bottom plate 19, and the tail end of the heat conducting partition plate 18, which is provided with a water inlet and a water outlet 112, all made of metal materials with good heat conductivity all extend out of the outer side of the rear end plate 110, so as to be conveniently communicated with the water storage tank 2, and can achieve a multi-face three-dimensional heat dissipation effect, and the metal heat conducting effect is better, and heat generated by the battery can be quickly conducted away.
In the embodiment of the present invention, the insulating heat-conducting fins 17 are disposed between the battery module 11 and the upper end plate 16, so that the heat is not transferred between the battery packs constituting the battery cluster 1 in a vertical distribution.
In the embodiment of the present invention, positive and negative terminals 13 connected to the positive and negative electrodes of the battery module 11 are disposed on the front plate 12, and a BMS collecting module 14 disposed below the positive and negative terminals 13 is further disposed on the front plate 12.
In the embodiment of the invention, the water inlets A-3 and A-two 4 arranged on one side of the water storage tank 2 are communicated with the reservoir A arranged outside the container, the water inlets B-5 and B-two 6 arranged on the other side of the water storage tank 2 are communicated with the reservoir B arranged outside the container, heat is transferred to water in the water storage tank 2, the temperature is slowly increased due to the large specific heat capacity of the water, and the temperature in the container is more uniform due to the indirect contact of the water with each battery. The water is changed after the temperature of the water rises to a certain temperature, so that the purpose of controlling the efficiency is achieved by adjusting the water temperature and the water changing speed, the design of a complex cooling pipeline is not needed, the cost is greatly reduced, the energy consumption is less, and the environment is more friendly by utilizing natural heat dissipation.
Example two
An energy storage system with low energy consumption and uniform temperature adopts the design of a battery pack of a square lithium ion battery, a battery cluster of the energy storage system consists of 15 battery packs and 1 high-voltage box, and a temperature equalizing method of the system comprises the following steps:
1) firstly, one or more battery modules 11 are placed in a battery pack, and the battery modules 11 are separated by a heat-conducting partition plate 18;
2) the heat-conducting partition plate 18 can be selectively designed to be in contact with two large surfaces of the battery;
3) the upper part, the lower part, the left part and the right part of the battery pack are provided with a section extending out of the rear end plate of the battery pack, and the length is more than 5 cm;
4) an insulating heat-conducting fin 17 is arranged between the upper end plate 16 of the battery pack and the battery module 11, and other cover plates can be selectively added but are tightly contacted with the corresponding surfaces of the batteries;
5) the partition plates between the cover plates and the modules of the battery pack are all made of materials with good heat conductivity, pipelines through which liquid such as water can pass are arranged in the plates, and the water inlet and outlet 112 are positioned at the outer ends of the extending parts of the plates;
6) assembling a battery pack;
7) the assembled battery pack is arranged on the battery frame and is arranged along the guide rail of the battery frame, the extending part of the battery pack just penetrates through the wall surface of the water storage tank 2 of the container after being arranged, and enters the water storage tank 2, and the contact part is sealed, so that no water leakage is guaranteed;
8) all the battery packs and the high-voltage boxes are installed in the above way and connected in series to form an energy storage system;
9) the water storage tank 2 is positioned in the middle of the container from bottom to top and from left to right to form a closed structure, the length and the height of the water storage tank are consistent with those of the container, and the width of the water storage tank can be calculated according to the heat productivity of the energy storage system and the preset water changing frequency;
10) two reservoirs A and B can be arranged outside the container, are used for storing water and cooling and can be shared with fire-fighting water;
11) when the energy storage system works, the water storage tank 2 of the container is filled with water, the water enters the battery pack along the heat-conducting partition plate 18 and the water-cooling pipelines 111 arranged in the cover plates and is uniformly distributed in the battery pack, when the battery generates heat, the heat is quickly transferred to the water in the water storage tank 2 through the plates, and the temperature of the water slowly rises due to the large specific heat capacity of the water, so that the temperature distribution in the container is more uniform;
12) when the temperature of the water rises to a set value or the rising speed of the battery temperature is greater than the set value, the water in the water storage tank 2 is discharged to the water tank B, and the water with lower temperature in the water tank A is introduced, so that the temperature is reduced, and the heat dissipation efficiency is improved;
13) after the energy storage system finishes working, water is cooled naturally or is cooled artificially and quickly, the water temperature is reduced to a set value when the energy storage system works again, and the water is guided into the water tank A from the water tank B and is recycled repeatedly.
The working principle is as follows: the heat-conducting plates which are tightly contacted with the battery are arranged on the upper surface, the lower surface, the left surface and the right surface of the battery pack (the heat-conducting plates can also be connected with the branch circuits to be contacted with the other two surfaces of the battery) so as to achieve the effect of multi-surface three-dimensional heat dissipation, and the heat-conducting plates are made of metal, have better heat-conducting effect and can quickly transfer away the heat generated by the battery. Simultaneously the other end of heat-conducting plate contacts with the aqua storage tank that sets up in the container, with the water in heat conduction to the aqua storage tank again, because the specific heat capacity of water is great, consequently the temperature will slowly rise to because water is indirect and each battery contact, the temperature in the container is more even. The water is changed after the temperature of the water rises to a certain temperature, so that the aim of controlling the efficiency is achieved by adjusting the water temperature and the water changing speed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an energy storage system that energy consumption low temperature is even which characterized in that: comprises that
The battery cluster (1) is arranged in the container in an arrangement mode and comprises a plurality of battery packs and a high-voltage box, wherein the battery packs are installed on a battery frame, the high-voltage box is connected with the battery packs in series, and each battery pack comprises a battery module (11) positioned inside and each cover plate positioned on the outer side of the battery module (11);
the water storage tank (2) is positioned in the middle of the container and forms a closed structure from bottom to top and from left to right, a first water inlet A (3) and a second water inlet A (4) which are distributed vertically are formed in one side of the water storage tank (2), and a first water inlet B (5) and a second water inlet B (6) which are distributed vertically are formed in the other side of the water storage tank (2);
and the heat conduction assembly is composed of a water cooling pipeline (111) arranged in each cover plate of the shell structure of the battery pack and a water cooling pipeline (111) arranged in the heat conduction partition plate (18), and the water cooling pipeline (111) is communicated with the water storage tank (2) through a water inlet and a water outlet (112).
2. The energy storage system with low energy consumption and uniform temperature as claimed in claim 1, wherein: the battery pack is characterized in that the battery modules (11) are arranged in two groups side by side in the battery pack, a heat-conducting partition plate (18) is arranged between the two groups of battery modules (11), the cover plate on the outer side of the battery modules (11) comprises side plates (15) respectively positioned on two sides, an upper end plate (16) arranged above the upper end plate, a bottom plate (19) arranged below the upper end plate, a front plate (12) arranged on the front side and a rear end plate (110) arranged on the rear side, and the tail ends of the side plates (15), the upper end plate (16), the bottom plate (19) and the heat-conducting partition plate (18) provided with water inlets and water outlets (112) all extend out of the outer side of the rear end plate (110).
3. The energy storage system with low energy consumption and uniform temperature as claimed in claim 1, wherein: and an insulating heat-conducting fin (17) is arranged between the battery module (11) and the upper end plate (16).
4. The energy storage system with low energy consumption and uniform temperature as claimed in claim 1, wherein: the battery module is characterized in that positive and negative terminals (13) connected with the positive and negative electrodes of the battery module (11) are arranged on the front plate (12), and a BMS acquisition module (14) located below the positive and negative terminals (13) is further arranged on the front plate (12).
5. The energy storage system with low energy consumption and uniform temperature as claimed in claim 1, wherein: the water inlet A (3) and the water inlet A (4) that aqua storage tank (2) one side was seted up communicate with the cistern A of the outside setting of container, the water inlet B (5) and the water inlet B (6) that aqua storage tank (2) opposite side was seted up communicate with the cistern B of the outside setting of container.
6. The temperature equalizing method of the energy storage system with low energy consumption and uniform temperature based on the claim 1 is characterized in that: the temperature equalizing method comprises the following steps:
1) firstly, one or more battery modules (11) are placed in a battery pack, and the battery modules (11) are separated by a heat-conducting partition plate (18);
2) the heat-conducting partition plate (18) can be selectively designed to be in branch contact with two large surfaces of the battery;
3) the upper part, the lower part, the left part and the right part of the battery pack are provided with a section extending out of the rear end plate of the battery pack, and the length is more than 5 cm;
4) an insulating heat-conducting fin (17) is arranged between the upper end plate (16) of the battery pack and the battery module (11), and other cover plates can be selectively added and are in close contact with the corresponding surfaces of the batteries;
5) the partition plates between the cover plates and the modules of the battery pack are all made of materials with good heat conductivity, pipelines capable of passing liquid are arranged in the plates, and water inlets and water outlets (112) are all positioned at the outer ends of the extending parts of the plates;
6) assembling a battery pack;
7) the assembled battery pack is arranged on the battery rack and is arranged along the guide rail of the battery rack, the extending part of the battery pack just penetrates through the wall surface of the water storage tank (2) of the container after being arranged, and enters the water storage tank (2), and the contact part is sealed, so that the water leakage is guaranteed;
8) all the battery packs and the high-voltage boxes are installed in the above way and connected in series to form an energy storage system;
9) the water storage tank (2) is positioned in the middle of the container from bottom to top and from left to right to form a closed structure, the length and the height of the water storage tank are consistent with those of the container, and the width of the water storage tank can be calculated according to the heat productivity of the energy storage system and the preset water changing frequency;
10) two reservoirs A and B can be arranged outside the container, are used for storing water and cooling and can be shared with fire-fighting water;
11) when the energy storage system works, the water storage tank (2) of the container is filled with water, the water enters the water storage tank along the heat-conducting partition plate (18) and the water-cooling pipelines (111) arranged in the cover plates and is uniformly distributed in the battery pack, when the battery generates heat, the heat is rapidly transferred to the water in the water storage tank (2) through the plates, and the temperature of the water slowly rises due to the larger specific heat capacity of the water, so that the temperature distribution in the container is more uniform;
12) when the temperature of the water rises to a set value or the rising speed of the battery temperature is greater than the set value, the water in the water storage tank (2) is discharged to a water tank B, and the water with lower temperature in the water tank A is introduced, so that the temperature is reduced, and the heat dissipation efficiency is improved;
13) after the energy storage system finishes working, water is cooled naturally or is cooled artificially and quickly, the water temperature is reduced to a set value when the energy storage system works again, and the water is guided into the water tank A from the water tank B and is recycled repeatedly.
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| CN202111245849.1A CN113948760B (en) | 2021-10-26 | 2021-10-26 | Energy storage system with low energy consumption and uniform temperature and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115265231A (en) * | 2022-07-26 | 2022-11-01 | 青岛海湾化工设计研究院有限公司 | Cooler capable of improving heat transfer effect |
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| CN115265231B (en) * | 2022-07-26 | 2023-06-23 | 青岛海湾化工设计研究院有限公司 | Cooler capable of improving heat transfer effect |
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| CN113948760B (en) | 2022-11-15 |
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