CN215869542U - Energy storage container battery thermal management and fire fighting device - Google Patents
Energy storage container battery thermal management and fire fighting device Download PDFInfo
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- CN215869542U CN215869542U CN202121609219.3U CN202121609219U CN215869542U CN 215869542 U CN215869542 U CN 215869542U CN 202121609219 U CN202121609219 U CN 202121609219U CN 215869542 U CN215869542 U CN 215869542U
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Abstract
The utility model discloses a battery heat management and fire fighting device for an energy storage container, which comprises a control device and a cooling device, wherein the control device is used for controlling the battery heat management; when the temperature of the battery is too high, the battery is rapidly cooled by the cooling device in time; and carrying out fire acousto-optic early warning when the temperature exceeds a set threshold value. When the thermal runaway causes fire accidents, the fire can be extinguished in time through the fire fighting device. The fire fighting device comprises a gas fire fighting device and a water fire fighting device. And uniformly arranging spray heads at each position inside the energy storage container, and connecting the gas fire extinguishing device and the water fire extinguishing device through pipelines. When the battery temperature was too high, in time carried out rapid cooling to the battery through cooling device, and cooling efficiency is high, satisfies battery module's cooling requirement, guarantees that the battery effectively works, avoids the higher life who influences the energy storage container of battery module temperature.
Description
Technical Field
The utility model belongs to the technical field of battery energy storage, and particularly relates to a battery thermal management and fire fighting device for an energy storage container.
Background
Based on the background of national power reform and great increase of the number of renewable energy power generation machines, the energy storage technology plays an important role in five major links of generation, transmission, transformation, distribution and utilization of a power system. The battery energy storage system is more and more widely applied in the fields of new energy, smart power grids, energy-saving technology and the like, and the functions of the battery energy storage system comprise upgrading and modification of the traditional power grid, peak clipping and valley filling and improvement of renewable energy grid-connected capacity. The energy storage container is used as an important component of a battery energy storage system, wherein a power battery in the energy storage container is greatly influenced by temperature, and the service life of the energy storage container is influenced by overhigh temperature of the power battery. Therefore, measures must be taken to thermally manage the power cell.
The energy storage container has the advantages of small occupied area, strong load adjusting capacity, low operation cost and the like, and is rapidly developed. In the operation process of the energy storage container, each part such as the bidirectional inverter, the power distribution cabinet, the junction cabinet and the battery pack can generate a large amount of heat, and the temperature of the battery pack is required to be maintained in a certain range for charging and discharging of the battery pack.
Along with the heat that the battery produced in the course of the work, owing to placed a large amount of batteries in the energy storage container, if the heat dissipation is untimely, the heat can be gathered in the container, causes the incasement temperature to constantly rise. The performance of the battery is greatly influenced by overhigh temperature, the performance and the cycle life of the battery are influenced if the temperature is too high, and thermal runaway is caused if the temperature is too high, so that accidents such as fire, explosion and the like are caused.
In order to enable batteries in an energy storage container to work in a proper temperature range, most of the existing heat management modes are air conditioners for the container, and the air temperature in a container passageway is adjusted by the air conditioners.
In addition, the radiating rate of current thermal management mode is slow, and when some battery module temperature risees fast and has the risk of thermal runaway, this kind of thermal management mode can't cool off battery module fast, can only let the temperature of battery module rise constantly, triggers thermal runaway, causes accidents such as conflagration, explosion.
In view of the above, it is desirable to provide a new thermal management and fire fighting device for energy storage container battery to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the utility model aims to provide a battery thermal management and fire fighting device for an energy storage container, wherein when the temperature of a battery is overhigh, the battery is rapidly cooled by a cooling device in time; carrying out fire early warning when the temperature exceeds a set threshold value; when the thermal runaway causes fire accidents, the fire can be extinguished in time through the fire-fighting system.
The utility model adopts the following technical scheme.
A battery heat management and fire fighting device for an energy storage container comprises a battery heat management device and a fire fighting device,
the battery thermal management device comprises a control device and a cooling device; the cooling device comprises a refrigerator and an air duct, an air outlet of the refrigerator is communicated with an air inlet of the air duct, and an air outlet of the air duct is arranged on the battery module;
the temperature detector is arranged on the battery module and used for collecting the temperature of the battery module and sending the temperature to the control device;
the control device judges according to the temperature of the battery module, controls the refrigerator to work, and generates cooling gas to be released to the battery module through the air duct.
Further, the control device is a single chip microcomputer, and the single chip microcomputer is STM 32.
Further, the battery thermal management device also comprises a high-temperature early warning device,
the control device judges according to the temperature of the battery module collected by the temperature detector, and when the temperature exceeds a set threshold value, the singlechip controls the high-temperature early warning device to alarm fire.
Further, the high-temperature early warning device is a fire acousto-optic alarm positioned outside the energy storage container.
Further, when receiving the early warning, the staff can press the emergency stop button outside the energy storage container to stop the equipment.
Further, when the energy storage container is in fire, the fire fighting device is started; the fire fighting device comprises a gas fire fighting device and a water fire fighting device.
Furthermore, the gas fire extinguishing device comprises a heptafluoropropane fire extinguisher stored in the energy storage container, nozzles are uniformly arranged at each position in the energy storage container, and the heptafluoropropane fire extinguisher is connected through a pipeline; fire extinguishing gas is sprayed out of each spray head through the pipeline to extinguish fire.
Furthermore, the water fire fighting device comprises spray heads arranged at each battery module in the energy storage container, the spray heads are connected in a unified manner through pipelines, and interfaces are arranged outside the spray heads; at ordinary times, the spray head and the inside of the pipeline are not filled with water, and when a fire disaster occurs, the interface is connected to the external fire hydrant to perform internal water spraying fire extinguishing.
Compared with the prior art, the utility model has the beneficial effects that:
according to the heat management and fire fighting device for the battery of the energy storage container, when the temperature of the battery is too high, the battery is rapidly cooled in time through the cooling device, the cooling efficiency is high, the cooling requirement of the battery module is met, the battery is guaranteed to effectively work, and the problem that the service life of the energy storage container is influenced due to the high temperature of the battery module is avoided.
When the temperature exceeds a set threshold value, fire hazard early warning is carried out to prevent the fire hazard, and when a worker receives the alarm, the worker can press an emergency stop button outside the energy storage container to stop the equipment.
When the thermal runaway causes fire accidents, the fire can be extinguished in time through the fire fighting device. In the initial stage of fire, a gas fire extinguishing device is adopted, and measures are taken as soon as possible to eliminate sprouts; in the later stage of fire, a water fire-fighting device is adopted to prevent the accident from being enlarged. In order to meet the special requirement of an energy storage battery system on fire fighting, a manually controlled water fire fighting system is further adopted, and later-stage fire can be effectively controlled and extinguished.
Drawings
FIG. 1 is a schematic diagram of an energy storage container battery thermal management and fire protection apparatus according to the present invention;
FIG. 2 is a fire flow diagram;
FIG. 3 is a schematic view of the early warning device installation;
FIG. 4 is a schematic view of the installation of the gas fire suppression apparatus;
fig. 5 is a schematic view of the installation of the water fire fighting device.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.
The utility model relates to a battery heat management and fire fighting device for an energy storage container.
As shown in fig. 1 and 3, the battery thermal management device includes a control device, a cooling device, and a temperature detector. The cooling device comprises a refrigerator and an air duct, an air outlet of the refrigerator is communicated with an air inlet of the air duct, and an air outlet of the air duct is arranged on the battery module. The control device is respectively electrically connected with the temperature detector and the refrigerator.
The temperature detector is arranged on the battery module and used for collecting the temperature of the battery module and sending a temperature signal to the control device, and the control device controls the working state of the refrigerator according to the temperature signal.
The control device judges the temperature of the battery module according to the temperature signal, then controls the refrigerator to work to generate cooling gas, and releases the cooling gas to the battery module through the air duct, so that the battery module is effectively cooled and cooled, the cooling efficiency is high, the cooling requirement of the battery module is met, the effective work of the battery is ensured, and the service life of the energy storage container is prevented from being influenced by the high temperature of the battery module. The control device is an STM32 singlechip.
According to a battery thermal management strategy of the energy storage container, logic judgment is carried out according to the temperature of a battery module, the internal environment temperature of the container and the internal environment humidity of the container, different working modes are selected, and the temperature of the battery module in the energy storage container is controlled at a target temperature of about 25 ℃.
And a temperature detector and a humidity detector are also arranged in the energy storage container and are electrically connected to the control device. The temperature detector collects the ambient temperature, and the humidity detector collects the ambient humidity inside the container. The temperature of the battery module is collected by a temperature detector arranged on the battery module.
When there is no load, the range of each temperature and humidity index is wider than that when there is a load because the system is not operating. In order to reduce the power consumption of the system, a standby mode is added.
As shown in fig. 1 and 3, the battery thermal management device further comprises a high temperature early warning device; the control device judges the temperature of the battery module according to the temperature signal acquired by the temperature detector, and when the temperature is over a set threshold value, the high-temperature alarm threshold value is set to be 45 ℃, so that the high-temperature early warning device is controlled to carry out fire alarm, thereby being mainly used for precaution, preventing accidents and shutting down power supply if necessary. The alarm is carried out through a fire acousto-optic alarm positioned outside the energy storage container, and when receiving the alarm, a worker can press an emergency stop button outside the energy storage container to stop the equipment.
Charging the battery produces a gaseous mist of sulfuric acid, also sandwiching small amounts of lead and hydrogen and oxygen. One of the flammable properties of hydrogen and oxygen is combustion-supporting, and if the density of hydrogen in the enclosed air reaches 3%, it will explode in the event of a spark.
Therefore, the battery thermal management device also comprises a special gas early warning device. The gas density data signal that including special gas detector, arrange in the energy storage container, controlling means surveyed according to special gas detector to show through the outside display of energy storage container, remind the staff to notice.
As shown in fig. 2, when the temperature of the battery of the energy storage container is too high and a fire breaks out, the fire fighting device is started. The fire fighting device comprises a gas fire fighting device and a water fire fighting device.
As shown in fig. 3 and 4, the gas fire extinguishing apparatus is used in the initial stage of a fire to take measures to eliminate sprouts at an early stage.
The gas fire extinguishing device comprises a heptafluoropropane fire extinguisher stored in the energy storage container, nozzles are uniformly arranged at each position in the energy storage container, and the heptafluoropropane fire extinguisher is connected with the nozzles through pipelines. When the control device detects the initial stage of a fire, the gas fire extinguishing device is controlled to be opened, and fire extinguishing gas is sprayed out from each spray head through the pipeline to extinguish the fire. Meanwhile, a gas spraying indicator lamp positioned outside the energy storage container is turned on to remind workers of paying attention.
A temperature detector and a smoke detector are arranged in the energy storage container, detection data signals of the temperature detector and the smoke detector are sent to a control device, and the control device controls the gas fire extinguishing system to be opened when comprehensively judging and detecting the initial stage of a fire according to the internal environment temperature and smoke.
Controlling the gas fire extinguishing device to be opened, setting 0-30S delay, and opening the electromagnetic valve of the driving bottle to spray the fire extinguishing agent when the time is up. Meanwhile, a container valve switch is arranged, and when the delay time is not up, a worker can open the container valve emergently to spray the fire extinguishing agent.
As shown in figure 5, the water fire-fighting device is used in the later stage of fire to prevent the accident from expanding. In order to meet the special requirement of an energy storage battery system on fire protection, a manually controlled water fire protection device is further adopted.
The water fire-fighting device has the following characteristics: the water is a natural fire extinguishing agent, has rich resources, is easy to obtain and store, has no harm effect on the ecological environment in the fire extinguishing process, is a fixed fire fighting facility with wide application, has low price and high fire extinguishing efficiency, and can work in linkage with other fire fighting facilities, thereby effectively controlling and extinguishing later-stage fire.
An embodiment directly adopts the fire hydrant, and the fire hydrant is installed outside energy storage container, and the distance of fire hydrant and energy storage container both can guarantee operating personnel's safety between 15 to 20 meters, can guarantee again that the battery box is at fire hydrant controllable within range. When a fire disaster occurs, the water fire-fighting device works to cool the energy storage container and isolate the spread and expansion of the fire disaster.
In another embodiment, spray heads are arranged at each battery module in the energy storage container, are uniformly connected through pipelines, and are externally provided with interfaces. At ordinary times shower nozzle and pipeline are inside not to have water, prevent that the water from dropping to cause the unnecessary harm on the battery, and when the conflagration breaing out, water fire control unit work carries out inside water spray fire extinguishing with interface connection to outside fire hydrant.
Compared with the prior art, the utility model has the beneficial effects that:
according to the heat management and fire fighting device for the battery of the energy storage container, when the temperature of the battery is too high, the battery is rapidly cooled in time through the cooling device, the cooling efficiency is high, the cooling requirement of the battery module is met, the battery is guaranteed to effectively work, and the problem that the service life of the energy storage container is influenced due to the high temperature of the battery module is avoided.
When the temperature exceeds a set threshold value, fire hazard early warning is carried out to prevent the fire hazard, and when a worker receives the alarm, the worker can press an emergency stop button outside the energy storage container to stop the equipment.
When the thermal runaway causes fire accidents, the fire can be extinguished in time through the fire fighting device. In the initial stage of fire, a gas fire extinguishing device is adopted, and measures are taken as soon as possible to eliminate sprouts; in the later stage of fire, a water fire-fighting device is adopted to prevent the accident from being enlarged. In order to meet the special requirement of an energy storage battery system on fire fighting, a manually controlled water fire fighting system is further adopted, and later-stage fire can be effectively controlled and extinguished.
The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.
Claims (5)
1. A battery heat management and fire fighting device for an energy storage container comprises a battery heat management device and a fire fighting device, and is characterized in that,
the battery thermal management device comprises a control device and a cooling device; the cooling device comprises a refrigerator and an air duct, an air outlet of the refrigerator is communicated with an air inlet of the air duct, and an air outlet of the air duct is arranged on the battery module;
the temperature detector is arranged on the battery module and used for collecting the temperature of the battery module and sending the temperature to the control device;
the control device judges according to the temperature of the battery module, controls the refrigerator to work, and generates cooling gas to be released to the battery module through the air duct;
the battery thermal management device further comprises a high temperature early warning device,
the control device judges according to the temperature of the battery module collected by the temperature detector, and when the temperature exceeds a set threshold value, the singlechip controls the high-temperature early warning device to alarm a fire;
the high-temperature early warning device is a fire acousto-optic alarm positioned outside the energy storage container;
the battery thermal management device also comprises a special gas early warning device; the control device displays the gas density data signal detected by the special gas detector through a display outside the energy storage container;
when the energy storage container is in fire, the fire fighting device is started; the fire fighting device comprises a gas fire fighting device and a water fire fighting device.
2. The energy storage container battery thermal management and fire protection apparatus of claim 1,
the control device is a single chip microcomputer which is STM 32.
3. The energy storage container battery thermal management and fire protection apparatus of claim 1,
when receiving the early warning, the staff can press the emergency stop button outside the energy storage container to stop the equipment.
4. The energy storage container battery thermal management and fire protection apparatus of claim 1,
the gas fire extinguishing device comprises a heptafluoropropane fire extinguisher stored in the energy storage container, nozzles are uniformly arranged at each position in the energy storage container, and the nozzles are connected with the heptafluoropropane fire extinguisher through pipelines; fire extinguishing gas is sprayed out of each spray head through the pipeline to extinguish fire.
5. The energy storage container battery thermal management and fire protection apparatus of claim 1,
the water fire fighting device comprises spray heads arranged at each battery module in the energy storage container, and the spray heads are connected in a unified manner through pipelines and are externally provided with interfaces; at ordinary times, the spray head and the inside of the pipeline are not filled with water, and when a fire disaster occurs, the interface is connected to the external fire hydrant to perform internal water spraying fire extinguishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121609219.3U CN215869542U (en) | 2021-07-15 | 2021-07-15 | Energy storage container battery thermal management and fire fighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121609219.3U CN215869542U (en) | 2021-07-15 | 2021-07-15 | Energy storage container battery thermal management and fire fighting device |
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| Publication Number | Publication Date |
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| CN215869542U true CN215869542U (en) | 2022-02-18 |
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| CN202121609219.3U Active CN215869542U (en) | 2021-07-15 | 2021-07-15 | Energy storage container battery thermal management and fire fighting device |
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- 2021-07-15 CN CN202121609219.3U patent/CN215869542U/en active Active
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