CN217334225U - Energy storage box and energy storage system - Google Patents
Energy storage box and energy storage system Download PDFInfo
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- CN217334225U CN217334225U CN202221048955.0U CN202221048955U CN217334225U CN 217334225 U CN217334225 U CN 217334225U CN 202221048955 U CN202221048955 U CN 202221048955U CN 217334225 U CN217334225 U CN 217334225U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides an energy storage box and energy storage system, the energy storage box includes box, cold water subassembly, cold-storage subassembly and battery energy storage subassembly, wherein: the battery energy storage assembly is arranged inside the box body and used for storing electric energy; the cold water component, the cold accumulation component and the battery energy storage component are connected to form a circulation loop, the circulation loop enables the cold water component to provide cold energy for the cold accumulation component and enables the cold accumulation component to store the cold energy, and/or the circulation loop enables the cold water component to release the cold energy for the battery energy storage component, and/or the circulation loop enables the cold accumulation component to release the cold energy for the battery energy storage component. The utility model discloses can reduce energy storage system's energy consumption, realize the high-efficient heat management of energy storage box and promote energy conversion efficiency.
Description
Technical Field
The utility model relates to an energy storage battery equipment technical field particularly, relates to an energy storage box and energy storage system.
Background
In order to cope with the potential threat of "energy crisis" and "greenhouse effect" to the development of the human society, clean renewable energy is actively developed in all countries around the world. However, the randomness and the volatility of renewable energy can generate huge impact on a power grid, and potential safety hazards are brought. Meanwhile, the demand of the power grid for peak clipping and valley filling is increasingly increased due to the large difference of the demand of the power grid in the day and at night.
The energy storage system can effectively balance load peak valley by using peak valley electricity price, reduces rotation standby, realizes energy utilization economy and improves comprehensive benefits. An energy storage link is introduced into the power grid, so that peak-valley difference and smooth load curves can be effectively eliminated, power generation equipment is effectively utilized, the utilization rate of the power generation equipment is improved, and the power supply cost is reduced. Therefore, energy storage systems have a very important role in the field of electricity. Common energy storage systems comprise an electrochemical energy storage system and a phase change energy storage system, the electrochemical energy storage system has the advantages of high energy storage density and high conversion efficiency, and the electrochemical energy storage system occupies an important position in the energy storage industry. Energy storage containers are common forms of large-scale electrochemical energy storage systems, but outdoor energy storage containers often need matching air conditioner cooling systems, and the air conditioner consumption in daytime occupies more than 70% of the energy consumption of the whole energy storage container. In view of the above, there is a need to develop an energy storage system with high efficiency and energy saving to improve the energy utilization rate of the energy storage container.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the big problem of current energy storage system energy consumption.
In order to solve the above problem, the utility model provides an energy storage box in a first aspect, including box, cold water subassembly, cold-storage subassembly and battery energy storage subassembly, wherein:
the battery energy storage assembly is arranged inside the box body and used for storing electric energy;
the cold water assembly, the cold accumulation assembly and the battery energy storage assembly are connected to form a circulation loop, the circulation loop enables the cold water assembly to provide cold energy for the cold accumulation assembly and enables the cold accumulation assembly to store the cold energy, and/or the circulation loop enables the cold water assembly to release the cold energy for the battery energy storage assembly, and/or the circulation loop enables the cold accumulation assembly to release the cold energy for the battery energy storage assembly.
Further, the circulation circuit includes a cold accumulation passage and a cold release passage, wherein:
the cold accumulation channel is sequentially connected with one end of the cold water component, the cold accumulation component and the other end of the cold water component;
the cold release channel is sequentially connected with one end of the cold accumulation assembly, the battery energy storage assembly and the other end of the cold accumulation assembly.
Further, the circulation loop further comprises a first control valve and a second control valve, wherein:
the first control valve is connected with the cold accumulation channel and arranged between one end of the cold water component and one end of the cold accumulation component;
the second control valve is connected with the cold accumulation channel and arranged between the other end of the cold water component and the other end of the cold accumulation component.
Further, the cooling release channel comprises a first cooling release channel and a second cooling release channel;
one end of the first cold release channel is connected into a cold accumulation channel between the first control valve and the cold accumulation assembly, and the other end of the first cold release channel is connected with the battery energy storage assembly;
one end of the second cold release channel is connected to the cold accumulation channel between the second control valve and the cold water assembly, and the other end of the second cold release channel is connected with the battery energy storage assembly.
Further, the circulation loop also comprises a third control valve, and the third control valve is connected with the first cold release channel and is arranged between the cold accumulation assembly and the battery energy storage assembly.
Further, the circulation loop further comprises a cooling pump, and the cooling pump is connected with the first cooling release channel and is arranged between the third control valve and the battery energy storage assembly.
Further, a cold storage medium is arranged in the cold storage assembly, and the cold storage medium is a high specific heat capacity cold storage medium or a phase change cold storage medium.
Further, cold water subassembly and cold-storage subassembly all set up in the inside of box, just the cold water subassembly is close to a lateral wall setting of battery energy storage subassembly, the cold-storage subassembly is close to battery energy storage subassembly with the bottom setting of cold water subassembly.
Further, still include temperature sensor, temperature sensor is close to the battery energy storage subassembly sets up.
The utility model discloses the second aspect provides an energy storage system, including any one of the first aspect energy storage box.
The energy storage box and the energy storage system of the utility model form a circulation loop by connecting the cold water component and the cold accumulation component with the battery energy storage component, and provide cold energy to the cold accumulation component and the battery energy storage component through the cold water component, the cold accumulation component can store the cold energy and cool the battery energy storage component, so that the battery energy storage component works normally, the cold accumulation component can partially or completely replace an air conditioner cooling system matched with the energy storage box, the energy consumption of the energy storage system can be reduced, the high-efficiency heat management of the energy storage box is realized, and the energy conversion efficiency is improved; in addition, this energy storage box can realize charging the storage electric energy to battery energy storage subassembly when the price of electricity is low, and store the cold energy to the cold-storage subassembly, makes battery energy storage subassembly release electric energy when the price of electricity is high valley to and make the cold-storage subassembly carry out cooling to battery energy storage subassembly, be favorable to saving energy storage box's use cost.
Drawings
Fig. 1 is a schematic structural diagram of an energy storage box in an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure of each component in the energy storage box according to an embodiment of the present invention.
Description of the reference numerals:
10-a box body; 20-a cold water component; 30-a cold storage component; 40-a battery energy storage assembly; 50-a first cold storage channel; 51-a second cold storage channel; 52-first cold discharge channel; 53-a second cold release channel; 54-a first control valve; 55-a second control valve; 56-a third control valve; 57-Cooling Pump.
Detailed Description
The technical solution of the present invention will be described in detail and clearly with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. Furthermore, in the description of the present invention, "at least one" means one or more unless specifically limited otherwise.
In the description of the present specification, the description of the term "on the basis of the above-described embodiments" means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one preferred embodiment or preferred example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1, the first aspect of the present embodiment provides an energy storage tank, which includes a tank body 10, a cold water assembly 20, a cold storage assembly 30, and a battery energy storage assembly 40, wherein:
the battery energy storage assembly 40 is arranged inside the box body 10 and used for storing electric energy;
the cold water component 20, the cold accumulation component 30 and the battery energy storage component 40 are connected to form a circulation loop, the circulation loop enables the cold water component 20 to provide cold energy for the cold accumulation component 30 and enables the cold accumulation component 30 to store the cold energy, and/or the circulation loop enables the cold water component 2 to release the cold energy for the battery energy storage component 40, and/or the circulation loop enables the cold accumulation component 30 to release the cold energy for the battery energy storage component 40.
According to the energy storage box provided by the embodiment, the cold water assembly and the cold accumulation assembly are connected with the battery energy storage assembly to form a circulation loop, cold energy is provided for the cold accumulation assembly and the battery energy storage assembly through the cold water assembly, the cold accumulation assembly can store the cold energy and cool the battery energy storage assembly, so that the battery energy storage assembly normally works, the cold accumulation assembly can partially or completely replace an air conditioner cooling system matched with the energy storage box, the energy consumption of the energy storage system can be reduced, the efficient heat management of the energy storage box is realized, and the energy conversion efficiency is improved; in addition, this energy storage box can realize charging the storage electric energy to battery energy storage subassembly when the price of electricity is low millet to and store the cold energy to the cold-storage subassembly, make battery energy storage subassembly release electric energy when the price of electricity is high millet, and make the cold-storage subassembly cool down battery energy storage subassembly, be favorable to saving energy storage box's use cost.
The circulation loop comprises a cold accumulation channel and a cold release channel, and the cold accumulation channel is sequentially connected with one end of the cold water component 20, the cold accumulation component 30 and the other end of the cold water component 20; the cold release channel is connected with one end of the cold accumulation assembly 30, the battery energy storage assembly 40 and the other end of the cold accumulation assembly 30 in sequence. Therefore, the cold energy can be circulated between the cold water component 20 and the cold accumulation component 30 by arranging the cold accumulation channel, the cold accumulation component 30 is convenient to store the cold energy, the cold energy can be circulated between the battery energy storage component 40 and the cold accumulation component 30 by arranging the cold release channel, and the battery energy storage component 40 is convenient to cool.
The cold accumulation channel comprises a first cold accumulation channel 50 and a second cold accumulation channel 51, one end of the first cold accumulation channel 50 is connected with one end of the cold water component 20, and the other end of the first cold accumulation channel 50 is connected with one end of the cold accumulation component 30; one end of the second cold storage passage 51 is connected to the other end of the cold water assembly 20, and the other end of the second cold storage passage 51 is connected to the other end of the cold storage assembly 30.
The circulation loop further includes a first control valve 54 and a second control valve 55, wherein the first control valve 54 is connected to the first cold storage passage 50 and is provided between one end of the cold water module 20 and one end of the cold storage module 30; the second control valve 55 is connected to the second cold storage passage 51 and disposed between the other end of the cold water module 20 and the other end of the cold storage module 30. Thus, by providing the first control valve 54 for starting and stopping the first cold storage passage 50 and the second control valve 55 for starting and stopping the second cold storage passage 51, it is convenient to adjust and control different working conditions.
The cold release channel comprises a first cold release channel 52 and a second cold release channel 53, one end of the first cold release channel 52 is connected to the cold accumulation channel between the first control valve 54 and the cold accumulation assembly 30, the other end of the first cold release channel 52 is connected with the battery energy storage assembly 40, namely, the first cold release channel 52 is connected with the first cold accumulation channel 50, one end of the first cold release channel 52 is located between the first control valve 54 and the cold accumulation assembly 30, and the other end of the first cold release channel 52 is connected with the battery energy storage assembly 40. One end of the second cold releasing channel 53 is connected to the cold accumulation channel between the second control valve 55 and the cold water component 20, the other end of the second cold releasing channel 53 is connected to the battery energy storage component 40, that is, the second cold releasing channel 53 is connected to the second cold accumulation channel 51, one end of the second cold releasing channel 53 is located between the second control valve 55 and the cold water component 20, and the other end of the second cold releasing channel 52 is connected to the battery energy storage component 40.
The circulation loop further includes a third control valve 56, and the third control valve 56 is connected to the first cooling release passage 52 and is disposed between the cold storage assembly 30 and the battery energy storage assembly 40. Therefore, the third control valve 56 can control the opening and the stopping of the first cold releasing channel 52, and the cold water component 20 can only provide cold energy to the cold accumulation component 30, or the cold accumulation component 30 only releases the cold energy to the battery energy storage component 40, or the cold water component 20 can provide the cold energy to the cold accumulation component 30 and release the cold energy to the battery energy storage component 40 through the cooperation of the first control valve 54 and the third control valve 56.
The circulation loop further comprises a cooling pump 57, the cooling pump 57 is connected with the first cold releasing channel 52 and is arranged between the third control valve 56 and the battery energy storage assembly 40, the cooling pump 57 can release cold energy from the cold accumulation assembly 30 to the battery energy storage assembly 40, and the cold water assembly 20 can provide circulating power for releasing the cold energy from the battery energy storage assembly 40.
The cold storage assembly 30 in this embodiment is provided with a cold storage medium inside, and the cold storage medium may be one or more of a cold storage medium with a high specific heat capacity or a phase change cold storage medium, where the cold storage medium with a high specific heat capacity includes water and LiClO 3 、ZnCl 2 .3H 2 O、K 2 HPO 3 .6H 2 O、NaOH.3H 2 O、NaCrO.10H 2 O、Na 2 CrO.10H 2 O, and the like, and the phase change cold storage medium comprises capric acid-lauric acid, caprylic acid, propyl palmitate, and the like.
The cold storage medium in the cold storage assembly 30 is in direct or indirect contact with the air flowing through the battery energy storage assembly 40.
In the present embodiment, the cold water unit 20 and the cold accumulation unit 30 may be disposed inside the cabinet 10, the cold water unit 20 and the cold accumulation unit 30 may be disposed outside the cabinet 10, however, in order to better cool the battery energy storage assembly 40 and reduce heat leakage caused by an excessively long channel of the circulation loop, so as to reduce energy consumption, on the basis of the above-mentioned embodiment, the cold water unit 20 and the cold storage unit 30 are both disposed inside the cabinet 10, and the cold water component 20 is arranged close to one side wall of the battery energy storage component 40, the cold accumulation component 30 is arranged close to the bottom of the battery energy storage component 40 and the cold water component 20, therefore, the cold water component 20, the cold accumulation component 30 and the battery energy storage component 40 are close to each other, so that the battery energy storage component 40 is cooled, the cold accumulation component 30 is convenient to store cold energy, the occupied area of the energy storage box can be reduced, and the structure of the energy storage box is more compact.
The energy storage box further comprises a temperature sensor, the temperature sensor is arranged close to the battery energy storage assembly 40, and therefore real-time monitoring of the temperature of the battery energy storage assembly 40 is facilitated, and the temperature of each control valve on the battery energy storage assembly 40 is adjusted in time.
A second aspect of the present embodiment provides an energy storage system including the energy storage tank shown in the first aspect.
According to the energy storage system provided by the embodiment, the cold water assembly and the cold accumulation assembly are connected with the battery energy storage assembly to form a circulation loop, cold energy is provided for the cold accumulation assembly and the battery energy storage assembly through the cold water assembly, the cold accumulation assembly can store the cold energy and cool the battery energy storage assembly, so that the battery energy storage assembly normally works, the cold accumulation assembly can partially or completely replace an air conditioner cooling system matched with the energy storage system, the energy consumption of the energy storage system can be reduced, the efficient heat management of the energy storage box is realized, and the energy conversion efficiency is improved; in addition, the energy storage box among this energy storage system can realize charging the storage electric energy to battery energy storage subassembly when the price of electricity is low millet to and store the cold energy to the cold-storage subassembly, make battery energy storage subassembly release electric energy when the price of electricity is high millet, and make the cold-storage subassembly cool down to battery energy storage subassembly, be favorable to saving energy storage system's use cost.
According to the energy storage box and the energy storage system provided by the embodiment, the cold water component 20 and the cold accumulation component 30 are connected with the battery energy storage component 40 to form the circulation loop, the cold accumulation channel and the cold release channel are arranged in the circulation loop, and the control valves for controlling the start and stop of the cold accumulation channel and the cold release channel are arranged, so that the functions of the energy storage box and the energy storage system are ensured, equipment is simplified, an air conditioner cooling system matched with the energy storage box can be partially or completely replaced, the energy consumption of the energy storage system can be reduced, the additional consumption of cold energy is avoided, and the problem of low energy utilization rate of the energy storage system caused by the consumption of the additional cold energy is solved.
According to the energy storage tank and the energy storage system provided by the embodiment, the start and stop of the cold accumulation channel and the cold release channel can be controlled through the first control valve 54, the second control valve 55 and the third control valve 56, and the work of the cold water assembly 20, the cold accumulation assembly 30 and the battery energy storage assembly 40 can be flexibly started or closed according to the peak-valley electricity price, the ambient temperature and the heat dissipation requirement.
The working process of the energy storage tank and the energy storage system of the embodiment is exemplarily described below with reference to several working modes:
single cell operating mode: in this mode, the battery energy storage assembly 40 is at a lower ambient temperature (e.g., ambient temperature not exceeding 25 ℃), the first control valve 54, the second control valve 55, the third control valve 56, and the cooling pump 57 are closed without the cold water assembly 20 and the cold storage assembly 30 providing cold energy.
The battery-cold storage assembly has two working modes: in this mode, when the operating temperature of the battery energy storage assembly 40 exceeds a first preset temperature (for example, the first preset temperature is 30 ℃), the third control valve 56 and the cooling pump 57 are opened, the second control valve 55 is opened, the first control valve 54 is closed, and cold energy is released to the battery energy storage assembly 40 through the cold accumulation assembly 30 to cool the battery energy storage assembly 40.
Battery-cold water assembly dual mode of operation: in this mode, the operating temperature of the battery energy storage assembly 40 continuously exceeds the second preset temperature (the second preset temperature is greater than the first preset temperature, for example, the second preset temperature is 35 ℃), the second control valve 55 is closed, the first control valve 54, the third control valve 56 and the cooling pump 57 are opened, and the cold water assembly 20 releases cold energy to the battery energy storage assembly 40 to cool the battery energy storage assembly 40.
The cold water component-cold accumulation component double working modes are as follows: in the low price period of electricity, the first control valve 54 and the second control valve 55 are opened, the third control valve 56 is closed, and cold energy is provided to the cold accumulation assembly 30 through the cold water assembly 20, so that the cold accumulation assembly 30 stores the cold energy.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.
Claims (10)
1. The utility model provides an energy storage box, its characterized in that includes box, cold water subassembly, cold-storage subassembly and battery energy storage subassembly, wherein:
the battery energy storage assembly is arranged inside the box body and used for storing electric energy;
the cold water component, the cold accumulation component and the battery energy storage component are connected to form a circulation loop, the circulation loop enables the cold water component to provide cold energy for the cold accumulation component and enables the cold accumulation component to store the cold energy, and/or the circulation loop enables the cold water component to release the cold energy for the battery energy storage component, and/or the circulation loop enables the cold accumulation component to release the cold energy for the battery energy storage component.
2. The energy storage tank of claim 1 wherein said circulation loop includes a cold accumulation channel and a cold release channel, wherein:
the cold accumulation channel is sequentially connected with one end of the cold water component, the cold accumulation component and the other end of the cold water component;
the cold release channel is sequentially connected with one end of the cold accumulation assembly, the battery energy storage assembly and the other end of the cold accumulation assembly.
3. The energy storage tank of claim 2, wherein the circulation loop further comprises a first control valve and a second control valve, wherein:
the first control valve is connected with the cold accumulation channel and arranged between one end of the cold water component and one end of the cold accumulation component;
the second control valve is connected with the cold accumulation channel and arranged between the other end of the cold water component and the other end of the cold accumulation component.
4. The energy storage tank of claim 3, wherein the cool-releasing passage comprises a first cool-releasing passage and a second cool-releasing passage;
one end of the first cold release channel is connected into a cold accumulation channel between the first control valve and the cold accumulation assembly, and the other end of the first cold release channel is connected with the battery energy storage assembly;
one end of the second cold release channel is connected to the cold accumulation channel between the second control valve and the cold water assembly, and the other end of the second cold release channel is connected with the battery energy storage assembly.
5. The energy storage tank of claim 4, wherein said circulation loop further comprises a third control valve connected to said first cold discharge passage and disposed between said cold storage assembly and said battery energy storage assembly.
6. The energy storage tank of claim 5, wherein the circulation loop further comprises a cooling pump connected to the first cold release passage and disposed between the third control valve and the battery energy storage assembly.
7. The energy storage tank of claim 1 wherein a cold storage medium is disposed within the cold storage assembly, the cold storage medium being a high specific heat capacity cold storage medium or a phase change cold storage medium.
8. The energy storage tank of claim 1, wherein the cold water assembly and the cold accumulation assembly are both disposed inside the tank body, the cold water assembly is disposed near one side wall of the battery energy storage assembly, and the cold accumulation assembly is disposed near the bottoms of the battery energy storage assembly and the cold water assembly.
9. The energy storage tank of claim 1, further comprising a temperature sensor disposed proximate to the battery energy storage assembly.
10. An energy storage system, characterized by comprising an energy storage tank according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221048955.0U CN217334225U (en) | 2022-05-05 | 2022-05-05 | Energy storage box and energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221048955.0U CN217334225U (en) | 2022-05-05 | 2022-05-05 | Energy storage box and energy storage system |
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| Publication Number | Publication Date |
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| CN217334225U true CN217334225U (en) | 2022-08-30 |
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| CN202221048955.0U Active CN217334225U (en) | 2022-05-05 | 2022-05-05 | Energy storage box and energy storage system |
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| CN (1) | CN217334225U (en) |
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- 2022-05-05 CN CN202221048955.0U patent/CN217334225U/en active Active
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