CN218414781U - Energy storage cabinet - Google Patents

Energy storage cabinet Download PDF

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Publication number
CN218414781U
CN218414781U CN202221376223.4U CN202221376223U CN218414781U CN 218414781 U CN218414781 U CN 218414781U CN 202221376223 U CN202221376223 U CN 202221376223U CN 218414781 U CN218414781 U CN 218414781U
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China
Prior art keywords
energy storage
storage cabinet
battery
battery compartment
fire
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CN202221376223.4U
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Chinese (zh)
Inventor
李彬
李倩
叶冉
郑佳琦
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Ningbo Beilun Rongdian New Energy Co ltd
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Ningbo Beilun Rongdian New Energy Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The application provides an energy storage cabinet, including the battery compartment that is used for setting up the battery cluster, energy storage cabinet adopts fire-proof material, the fire-retardant thermal insulation material of fire prevention has been laid to the battery compartment wall, is used for working as the separation when the battery cluster catches fire the battery compartment in with external heat transfer. This application has laid fire prevention fire-retardant thermal insulation material at the battery bulkhead, can be when the battery cluster when catching fire separation battery under-deck with external heat transfer, avoid producing the incident.

Description

Energy storage cabinet
Technical Field
The application relates to the technical field of energy storage equipment, in particular to an energy storage cabinet.
Background
With the continuous development and utilization of renewable clean energy sources such as solar energy, wind energy, biomass energy and the like, especially after the large-scale application and development of a solar photovoltaic power generation system, the small-size user side energy storage becomes a trend, and the small-size user side energy storage is in a form of an energy storage cabinet.
Most of existing energy storage cabinets adopt a galvanized plate to prevent the fire from spreading, however, the mode only can separate the fire, but can not separate heat transfer, so that even if the galvanized plate separates the spreading of the fire, harm can still be caused to peripheral things of the energy storage cabinet, and even a fire disaster can be caused by igniting objects outside the energy storage cabinet.
Therefore, it is necessary to provide a technical solution to solve the problem that the existing energy storage cabinet cannot insulate heat.
Disclosure of Invention
An object of this application is to provide an energy storage cabinet, solve current energy storage cabinet can be because of the unable thermal-insulated problem that produces the incident when catching fire in the battery compartment.
In view of the above, the present application provides an energy storage cabinet, which includes a battery compartment for arranging a battery cluster, the energy storage cabinet is made of fireproof material,
and a fireproof and flame-retardant heat insulation material is laid on the wall of the battery cabin and is used for blocking heat transfer between the inside of the battery cabin and the outside when the battery cluster fires.
Further, the insulating material comprises an aerogel material.
Further, the aerogel material has a porosity greater than 90%.
Further, the pore size of the aerogel material is greater than or equal to 2 nanometers and less than or equal to 50 nanometers.
Further, the heat insulation material is formed by compounding inorganic fibers and the aerogel material.
Further, the aerogel material adopts SiO 2 An aerogel material.
Further, the heat insulation material is attached to the battery compartment wall by glue.
Further, the heat insulation material is fixed with the battery compartment wall through bolts and metal plates.
Further, the energy storage cabinet also comprises fire-fighting equipment, and when the battery compartment is on fire, the fire-fighting equipment is started to extinguish flame.
Further, the energy storage cabinet still includes energy management system, works as when fire-fighting equipment starts, energy management system control the energy storage cabinet stops charge-discharge, and cuts off the inlet wire power of energy storage cabinet.
This application has laid fire prevention fire-retardant thermal insulation material at the battery bulkhead, can be when the battery cluster when catching fire separation battery under-deck with external heat transfer, avoid producing the incident.
Drawings
Fig. 1 is a schematic structural diagram of an energy storage cabinet provided in an embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a battery compartment provided in an embodiment of the present application;
FIG. 3 is a schematic view of an insulation material arrangement provided by one embodiment of the present application;
FIG. 4 is a schematic view of an insulation arrangement provided in accordance with another embodiment of the present application;
FIG. 5 is a schematic view of a cooling system according to an embodiment of the present application.
Detailed Description
The present application is described in detail below with reference to specific embodiments shown in the drawings, but the embodiments do not limit the present application, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present application.
As shown in fig. 1, the present application provides an energy storage cabinet 10 including a battery compartment 11 for arranging battery clusters. Energy storage cabinet 10 that this application embodiment provided adopts fire prevention material, and as an optional implementation, energy storage cabinet 10's the cabinet body can adopt the galvanized sheet to make.
As shown in fig. 2, a battery compartment wall 111 is laid with a fireproof and flame-retardant heat insulating material 112. Due to the arrangement of the heat insulating material 112, heat transfer between the interior of the battery compartment 11 and the outside can be effectively blocked when the battery pack fires, so that safety accidents caused by overhigh surface temperature of the energy storage cabinet 10 when the battery pack fires are avoided.
As an alternative implementation, the heat insulating material may be disposed outside the battery compartment wall 111 or may be disposed on the inner wall of the battery compartment. In order to avoid damaging the heat insulation material, the heat insulation material is preferably arranged on the inner wall of the battery compartment in the embodiment of the application.
As an alternative implementation, the insulating material 112 includes an aerogel material.
As an alternative implementation, the aerogel material has a porosity greater than 90%.
As an alternative implementation, the pore size of the aerogel material is greater than or equal to 2 nanometers and less than or equal to 50 nanometers.
The special structure of the aerogel material determines that the aerogel material has excellent heat insulation characteristics, and meanwhile, the aerogel material can keep the structural integrity at high temperature and is not easy to sinter at high temperature.
As an optional implementation manner, the energy storage cabinet 10 provided in the embodiment of the present application adopts SiO 2 An aerogel material. SiO 2 2 Aerogel is currently recognized as one of the lowest thermal conductivity solid materials (about 0.015W/m × K at room temperature) due to its special nanoscale pores and framework particles, however, siO is 2 The aerogel has strong permeability to near-infrared heat radiation with the wavelength of 3-8 microns at high temperature, the radiation heat transfer gradually becomes a main mode of heat conduction along with the rise of the temperature, the high-temperature heat insulation effect of the aerogel still needs to be improved, in addition, the low density and high porosity of the aerogel cause that the aerogel has low strength and high brittleness, and the aerogel is difficult to be directly used as a heat insulation material 112, and the strength of the aerogel is highThe chemical properties need to be improved.
As an alternative implementation, in the present embodiment, the thermal insulation material 112 may be aerogel nano fireproof thermal insulation felt. The aerogel nanometer fireproof heat-insulating felt is formed by compounding inorganic fibers and aerogel materials, and has the excellent properties of softness, hydrophobicity, high-temperature stability, no attenuation of heat-insulating effect along with time, fire resistance, flame retardance and the like.
Wherein, the inorganic fiber can be inorganic ceramic fiber, or glass fiber, or alumina silicate fiber, or mullite fiber, the inorganic ceramic fiber not only has good mechanical property, but also has better high temperature resistance and infrared radiation effect, and can effectively adjust SiO 2 The contradiction between the heat-insulating property and the mechanical property of the aerogel composite material. SiO 2 2 The aerogel is compounded with the inorganic fibers to enhance the structural strength of the composite thermal insulation material 112, so that the composite thermal insulation material is not easily damaged.
In summary, the present application relates to SiO 2 The aerogel nanometer fireproof heat-insulating felt is combined with the galvanized plate due to SiO 2 The aerogel material has the characteristics of high porosity, large specific surface area, low heat conductivity and the like, so that heat transfer between the interior of the battery compartment 11 and the outside can be effectively blocked when a battery cluster fires, and safety accidents caused by overhigh surface temperature of the energy storage cabinet 10 when the battery cluster fires are avoided.
In the energy storage cabinet 10 provided by the embodiment of the application, the heat insulating material 112 is reliably connected with the battery compartment wall 111.
As an alternative implementation, the thermal insulation material 112 may be attached to the battery compartment wall 111 using glue 113, as shown in fig. 3. The glue 113 used in this implementation has high temperature resistant properties, i.e., it is still able to maintain a reliable connection of the insulating material 112 to the battery compartment wall 111 in a high temperature environment.
As an alternative implementation, as shown in fig. 4, the heat insulating material 112 may also be fixed to the battery compartment wall 111 by bolts 115 and sheet metal, so as to enhance the reliability of the connection between the heat insulating material 112 and the battery compartment wall 111. Specifically, a fireproof and flame-retardant heat insulating material 112 is laid on the battery compartment wall 111, at least one clamping plate 114 is arranged on the other side of the heat insulating material 112, the clamping plate 114 is matched with the battery compartment wall 111 to clamp the heat insulating material 112, and the clamping plate 114 is fixed through a bolt 115. As an alternative implementation, the clamping plate 114 is also made of a fire-resistant material, for example, the clamping plate 114 may be a galvanized plate.
As described above, the energy storage cabinet 10 provided in the embodiment of the present application is made of a fireproof material, and the battery bulkhead 111 is provided with a fireproof and flame-retardant heat insulating material 112, so that when a battery pack fires, fire spreading can be prevented, and meanwhile, heat transfer is blocked, and safety accidents caused by too high surface temperature of the energy storage cabinet 10 are avoided. Moreover, the heat insulating material 112 is arranged in the energy storage cabinet 10 provided by the application, so that heat exchange between the interior of the battery compartment 11 and the external environment is prevented, and therefore, the energy storage cabinet 10 provided by the application can work in an extreme temperature environment.
For example, in an external high-temperature environment, the heat insulating material 112 blocks heat from the external environment from entering the battery compartment 11, so that the temperature inside the battery compartment 11 can be lower than the external environment, and a relatively suitable working environment is provided for each battery cluster inside the battery compartment 11.
For example, in an external low-temperature environment, the heat insulating material 112 blocks heat in the battery compartment 11 from being dissipated to the external environment, so as to provide a heat insulating effect for the battery compartment 11, thereby enabling the temperature in the battery compartment 11 to be higher than the external environment, and providing a relatively suitable working environment for each battery cluster in the battery compartment 11.
Maintaining the temperature within the battery compartment 11 is one of the important conditions for ensuring the safety of the energy storage cabinet 10. In addition to the influence of the external environment temperature, the temperature in the battery compartment 11 also needs to be considered in consideration of the heat generated during the charging and discharging of the battery pack.
As an optional implementation manner, the energy storage cabinet 10 further includes a cooling system 12, which is used to reduce the temperature in the battery compartment 11, provide a relatively suitable working environment for each battery cluster in the battery compartment 11, and avoid safety accidents caused by too high temperature in the battery compartment 11.
As an alternative implementation manner, the energy storage cabinet 10 may adopt an air cooling system, an air duct is reserved in the battery compartment 11, and the fan is started to drive the air inside the battery compartment 11 to flow, so as to discharge the heat inside the battery compartment 11 through the reserved air duct. Furthermore, the air cooling system can also adjust the heat dissipation efficiency in the battery compartment 11 by changing the rotation speed of the fan.
As another alternative implementation, the energy storage cabinet 10 may also be refrigerated by an air conditioner. An air conditioner is arranged in the energy storage cabinet 10, and the air conditioner is started to refrigerate so as to reduce the temperature in the battery compartment 11. Furthermore, the cooling power of the air conditioner can be adjusted to adjust the heat dissipation efficiency in the battery compartment 11.
In the energy storage cabinet 10 provided in the embodiment of the present application, since the battery compartment wall 111 is provided with the thermal insulation material 112 to block heat exchange with the external environment in the battery compartment 11, heat dissipation inside the battery compartment 11 mainly depends on the cooling system 12, which increases the energy consumption of the cooling system 12 to some extent.
As an alternative implementation manner, the energy storage cabinet 10 provided in the embodiment of the present application includes a cooling system 12 with low energy consumption and high heat dissipation efficiency.
Specifically, as shown in fig. 5, the cooling system 12 provided in the embodiment of the present application includes:
the first casing 121 is used for storing the cooling liquid 1211, and the surface of the first casing 121 is provided with a radiation refrigerating material 1212.
The liquid supply pipe 122 is disposed between the battery clusters and the first case 121, the liquid supply pipe 122 has a plurality of heat dissipating parts 1221, each heat dissipating part 1221 is adjacent to one of the battery clusters, and the coolant 1211 exchanges heat with the battery clusters when flowing through the heat dissipating parts 1221.
The liquid return pipe 123 has one end connected to the end of the liquid supply pipe 122 and the other end connected to the first casing 121, and the cooling liquid 1211 circulates through the liquid supply pipe 122 and the liquid return pipe 123.
As an alternative implementation, the cooling liquid 1211 may be water, or a liquid with water as a main component, or other heat-conducting media. In the present embodiment, the function of the cooling liquid 1211 includes absorbing heat generated by the battery pack and bringing the heat out of the battery compartment 11 by means of liquid circulation, thereby reducing the temperature inside the battery compartment 11.
The embodiment of the application adopts a mode of combining the radiation refrigeration material 1212 with liquid cooling, so that the temperature in the energy storage cabinet 10 can be reduced with high efficiency and low energy consumption.
As shown in fig. 5, in the present embodiment, the surface of the first casing 121 is provided with a radiation refrigerating material 1212. The radiation refrigerating material 1212 functions to reduce absorption of the solar spectrum as much as possible and increase emission of the atmospheric window as much as possible, thereby achieving a radiation refrigerating effect, so that the temperature of the cooling liquid 1211 in the first case 121 may be lower than the ambient temperature, increasing the temperature difference between the cooling liquid 1211 and the cell cluster, and improving the heat absorption efficiency of the cooling liquid 1211 at the heat dissipating part 1221.
As an optional implementation, the reflectivity of the radiation refrigeration material 1212 to the 0.3-2.5 μm solar band is greater than or equal to 88%, and the emissivity to the 8-13 μm atmospheric window band is greater than or equal to 93%.
As can be seen from the above description, in the energy storage cabinet 10 provided in the embodiment of the present application, the fireproof and flame-retardant heat insulating material 112 is disposed on the battery compartment wall 111, so that when a fire breaks out in the battery compartment 11, the fire can be prevented from spreading and heat transfer can be blocked, and a safety accident caused by an excessively high surface temperature of the energy storage cabinet 10 can be avoided.
Meanwhile, the energy storage cabinet 10 provided by the embodiment of the application adopts a mode of combining the radiation refrigeration material 1212 with liquid cooling, so that the temperature in the battery compartment 11 can be reduced with high efficiency and low energy consumption. The problem of in energy storage cabinet 10 daily use, because battery cabin wall 111 sets up thermal insulation material 112, battery cabin 11 dispels the heat and mainly relies on cooling system 12, leads to cooling system 12 energy consumption to increase is solved.
As an optional implementation manner, the energy storage cabinet 10 further includes a fire fighting device disposed at the top inside the battery compartment 11, and when a fire breaks out in the battery compartment 11, the fire fighting device is activated to extinguish the fire.
As an optional implementation manner, the energy storage cabinet 10 further includes an energy management system, and when the fire fighting equipment is started, the energy management system controls the energy storage cabinet 10 to stop charging and discharging, and cuts off the incoming line power supply of the energy storage cabinet 10.
While the foregoing disclosure shows what is considered to be the preferred embodiment of the present application, it is not intended to limit the scope of the invention, which can be determined by one of ordinary skill in the art from the following claims: rather, the invention is intended to cover alternatives, modifications, substitutions, combinations and simplifications which may be equivalent arrangements without departing from the spirit and scope of the application and the appended claims.

Claims (9)

1. An energy storage cabinet comprises a battery compartment for arranging a battery cluster, and is characterized in that the energy storage cabinet is made of fireproof materials,
the wall of the battery cabin is paved with a fireproof and flame-retardant heat insulation material for blocking heat transfer between the inside of the battery cabin and the outside when the battery cluster fires;
the energy storage cabinet further comprises a cooling system, and the cooling system is used for reducing the temperature in the battery compartment.
2. The energy storage cabinet of claim 1, wherein the thermally insulating material comprises an aerogel material.
3. The energy storage cabinet of claim 2, wherein the aerogel material has a porosity greater than 90%.
4. The energy storage cabinet of claim 2, wherein the aerogel material has a pore size greater than or equal to 2 nanometers and less than or equal to 50 nanometers.
5. The energy storage cabinet of claim 2, wherein the aerogel material is SiO 2 An aerogel material.
6. The energy storage cabinet of claim 1, wherein the thermal insulation material is attached to the battery compartment wall using glue.
7. The energy storage cabinet of claim 1, wherein the thermal insulation material is secured to the battery compartment wall by bolts and sheet metal.
8. The energy storage cabinet of claim 1, further comprising a fire fighting device that is activated to extinguish a fire when a fire breaks out in the battery compartment.
9. The energy storage cabinet of claim 8, further comprising an energy management system, wherein when the fire fighting equipment is started, the energy management system controls the energy storage cabinet to stop charging and discharging and cuts off an incoming power supply of the energy storage cabinet.
CN202221376223.4U 2022-06-01 2022-06-01 Energy storage cabinet Active CN218414781U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221376223.4U CN218414781U (en) 2022-06-01 2022-06-01 Energy storage cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221376223.4U CN218414781U (en) 2022-06-01 2022-06-01 Energy storage cabinet

Publications (1)

Publication Number Publication Date
CN218414781U true CN218414781U (en) 2023-01-31

Family

ID=85010365

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221376223.4U Active CN218414781U (en) 2022-06-01 2022-06-01 Energy storage cabinet

Country Status (1)

Country Link
CN (1) CN218414781U (en)

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