CN217091833U - Liquid cooling PACK of energy storage system is directly hung to well high pressure - Google Patents
Liquid cooling PACK of energy storage system is directly hung to well high pressure Download PDFInfo
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- CN217091833U CN217091833U CN202220058854.5U CN202220058854U CN217091833U CN 217091833 U CN217091833 U CN 217091833U CN 202220058854 U CN202220058854 U CN 202220058854U CN 217091833 U CN217091833 U CN 217091833U
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Abstract
The utility model discloses a well high pressure is directly hung energy storage system's liquid cooling PACK. Through seting up the pressure release mouth on the casing, the pressure release mouth can be opened when the pressure in the casing is greater than the default, avoids the explosion that the internal pressure of casing was too big to cause, and when the pressure in the casing is less than the default, can effectively guarantee the leakproofness of casing to the battery, avoids liquid cooling pipeline explosion, liquid cooling joint to appear running, overflowing, dripping, leaking the phenomenon, and then avoids the incident that the battery short circuit caused. However, combustible gas can be separated out when the battery core of the battery is out of thermal runaway, such as hydrogen and methane, and the gas detection sensor used for detecting the combustible gas is arranged, the gas in the shell is detected by the gas detection sensor in real time, when the gas detection sensor detects the combustible gas, an electric signal is sent to the controller, the electric signal sent by the gas detection sensor is received by the controller, the controller can disconnect the battery from an external power grid, and the normal operation of the power grid is further prevented from being influenced by the internal short circuit of the battery.
Description
Technical Field
The utility model relates to a battery energy storage field specifically is a liquid cooling PACK of energy storage system is directly hung to well high pressure.
Background
The medium-high voltage direct-hanging energy storage system has the advantages of large single-machine capacity, high system efficiency, occupied area saving and the like, and generally receives attention in application scenes of new energy power generation, a power supply side, a power grid side and the like. The battery is the important component part of high-voltage direct-hanging energy storage system, consequently, the security of battery is vital to energy storage system, however along with energy storage system unit capacity is great, traditional air-cooled design can not satisfy the heat dissipation demand of battery module, consequently adopt liquid cooling heat dissipation technology to solve present large capacity battery heat dissipation key technique, liquid cooling PACK, however, adopt liquid cooling heat dissipation technology need prevent that the pipeline of liquid cooling PACK from exploding the pipe, the liquid cooling connects the appearance of running, burst, the drippage, the hourglass phenomenon appears to avoid the battery of battery module inside to appear the short circuit.
However, the liquid cooling PACK of the medium-high voltage direct-hanging energy storage system is designed according to the protection level of IP65, so that the battery is almost sealed, and once the battery generates smoke or even catches fire due to thermal runaway, the internal pressure of the liquid cooling PACK is suddenly increased, and the liquid cooling PACK is exploded in case of serious explosion.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a well high pressure directly hangs energy storage system's liquid cooling PACK to solve the current potential safety hazard problem that directly hangs energy storage system and adopt the liquid cooling heat dissipation to bring.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system is suitable for the direct-hanging energy storage system, and the direct-hanging energy storage system comprises a shell, a controller, a battery and a gas detection sensor;
the battery is sealed in the shell;
the shell is provided with a pressure relief opening, and the pressure relief opening is used for opening when the pressure in the shell is greater than a preset value;
the controller is used for controlling the connection and disconnection of the battery and an external power grid;
gaseous detection sensor sets up in the casing, and gaseous detection sensor links to each other with the controller, and gaseous detection sensor is used for detecting combustible gas, and when gaseous detection sensor detected combustible gas, gaseous detection sensor sent the signal of telecommunication to the controller, and the disconnection of controller control battery and outside electric wire netting.
Preferably, the number of the gas detection sensors is plural;
the plurality of gas detection sensors are uniformly distributed in the shell.
Preferably, the method further comprises the following steps: a fire extinguishing device disposed within the housing;
when the gas detection sensor detects combustible gas, the gas detection sensor sends an electric signal to the fire extinguishing device;
when the fire extinguishing device receives the electric signal, the fire extinguishing device is started to extinguish fire.
Preferably, the fire extinguishing apparatus includes: a driver and an aerosol fire extinguisher;
the driver is connected with the gas detection sensor and is used for driving the aerosol fire extinguisher to start when receiving the electric signal.
Preferably, the method further comprises the following steps: an alarm device;
the controller is used for sending an alarm signal to the alarm device when receiving the electric signal;
the alarm device is connected with the controller and used for executing alarm based on the alarm signal.
Preferably, the alarm device comprises:
the sound alarm device is used for executing sound alarm based on the alarm signal or playing preset voice information based on the alarm signal;
and/or, a light alarm device for performing a light alarm based on the alarm signal.
Preferably, the method further comprises the following steps: a main power supply and a backup power supply for providing power to the gas detection sensor, the controller.
Preferably, the main power supply is a high-voltage isolation power supply, and the standby power supply is a high-level direct-current bus power supply.
Preferably, the main power supply is a high-level direct-current bus power supply, and the standby power supply is a high-voltage isolation power supply.
From the above, the utility model discloses a liquid cooling PACK of energy storage system is directly hung to well high pressure. Through seting up the pressure release mouth on the casing, and then can be when the pressure in the casing is greater than the default, the pressure release mouth is opened, and then avoids the explosion that the too big initiation of casing internal pressure, and when the pressure in the casing is less than the default, can effectively guarantee the leakproofness of casing to the battery, avoid liquid cooling pipeline explosion, liquid cooling joint to appear running, emit, drip, leak the phenomenon, and then avoid the incident that the battery short circuit caused.
Can lead to the temperature to rise when the electric core thermal runaway of battery, combustible gas can be appeared simultaneously, like hydrogen, gas such as methane, and be used for detecting combustible gas's gaseous detection sensor through setting up, gaseous detection sensor detects the gas in the casing in real time, when gaseous detection sensor is detecting combustible gas, can send the signal of telecommunication to the controller, receive the signal of telecommunication that gaseous detection sensor sent when the controller, the controller then can break off being connected of battery and outside electric wire netting, and then avoid the normal operating of the inside short circuit influence electric wire netting of battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the inside of a liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system provided by an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system provided by an embodiment of the present invention.
Wherein, casing 1, pressure release mouth 11, battery 2, controller 3, gas detection sensor 4, driver 5 and aerosol fire extinguisher 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiment of the utility model provides a well high pressure hangs energy storage system's liquid cooling PACK directly, refer to fig. 1 and fig. 3, include: a housing 1, a controller 3, a battery 2, and a gas detection sensor 4;
the battery 2 is sealed in the shell 1;
the shell 1 is provided with a pressure relief opening 11, and the pressure relief opening 11 is used for being opened when the pressure in the shell 1 is larger than a preset value;
the controller 3 is used for controlling connection and disconnection of the battery 2 with an external power grid;
It should be noted that, through set up pressure release mouth 11 on casing 1, and then can be when the pressure in casing 1 is greater than the default, pressure release mouth 11 is opened, and then avoids the explosion that the too big initiation of casing 1 internal pressure, and when the pressure in casing 1 is less than the default, can effectively guarantee casing 1 to battery 2's leakproofness, avoid liquid cooling pipeline to explode the pipe, liquid cooling connects the appearance and runs, burst, drips, leaks the phenomenon, and then avoids the incident that battery 2 short circuit initiated.
It should be further explained that, can lead to the temperature to rise when battery 2's electric core thermal runaway, combustible gas can be appeared simultaneously, like hydrogen, gas such as methane, and be used for detecting combustible gas's gas detection sensor 4 through setting up, gas detection sensor 4 detects the gas in the casing 1 in real time, when gas detection sensor 4 is detecting combustible gas, can send the signal of telecommunication to controller 3, receive the signal of telecommunication that gas detection sensor 4 sent when controller 3, controller 3 then can break off being connected of battery 2 and outside electric wire netting, and then avoid the normal operating of the inside short circuit influence electric wire netting of battery 2.
Specifically, the number of the gas detection sensors 4 is plural;
the plurality of gas detection sensors 4 are uniformly distributed in the housing 1.
It should be noted that, when the electric core of the battery 2 separates out the combustible gas, only when the combustible gas needs to be gradually diffused to the gas detection sensor 4, the gas sensor can detect the combustible gas, because the number of the batteries 2 installed in the casing 1 is large, in order to ensure that the gas detection sensor 4 can timely detect when the combustible gas leaks, the gas detection sensors 4 are uniformly distributed in the casing 1, the gas detection sensor 4 can detect a plurality of positions in the casing 1, and further when the combustible gas leaks, the combustible gas can be detected, and further the controller 3 can quickly disconnect the connection between the batteries 2 and an external power grid, thereby ensuring the safety of the power grid and avoiding the occurrence of safety accidents.
Further, well high pressure hangs energy storage system's liquid cooling PACK directly still includes: a fire extinguishing device disposed in the housing 1;
when the gas detection sensor 4 detects combustible gas, the gas detection sensor 4 sends an electric signal to the fire extinguishing apparatus;
when the fire extinguishing device receives the electric signal, the fire extinguishing device is started to extinguish fire.
It should be noted that, by providing the fire extinguishing apparatus, when the gas detection sensor 4 detects combustible gas, the fire extinguishing apparatus releases the fire extinguishing substance in the housing 1 by sending an electric signal to the fire extinguishing apparatus, so as to prevent the housing 1 from catching fire, and extinguish the fire when the housing 1 catches fire, thereby effectively preventing the fire from occurring, and preventing the fire from spreading and causing greater loss.
Specifically, the fire extinguishing apparatus includes: an actuator 5 and an aerosol fire extinguisher 6;
the driver 5 is connected with the gas detection sensor 4, and the driver 5 is used for driving the aerosol fire extinguisher 6 to start when receiving an electric signal.
It should be noted that the fire extinguishing apparatus is provided with a driver 5 and an aerosol fire extinguisher 6, and when the driver 5 receives the electrical signal sent by the gas detection sensor 4, the driver 5 drives the aerosol fire extinguisher 6 to spray aerosol to extinguish fire, so as to avoid fire and extinguish fire.
It should be noted that the fire extinguisher in the fire extinguishing apparatus of the present invention may be an aerosol fire extinguisher 6, or may be other fire extinguishers with fire extinguishing capability, and is not limited to the aerosol fire extinguisher 6.
Further, well high pressure hangs energy storage system's liquid cooling PACK directly still includes: an alarm device;
the controller 3 is used for sending an alarm signal to the alarm device when receiving the electric signal;
the alarm device is connected to the controller 3 for performing an alarm based on the alarm signal.
It should be noted that, by setting the alarm device, the controller 3 can send an alarm signal to the alarm device when receiving the electrical signal sent by the gas detection sensor 4, and the alarm device can perform an alarm when receiving the alarm signal sent by the controller 3, so as to prompt a worker that the battery 2 has a safety problem, and enable the worker to maintain in time.
It should be noted that the alarm device and the controller 3 may be connected by wire or wirelessly, and those skilled in the art may select them according to the requirement.
Specifically, the alarm device includes:
the sound alarm device is used for executing sound alarm based on the alarm signal or playing preset voice information based on the alarm signal;
and/or, a light alarm device for performing a light alarm based on the alarm signal.
It should be noted that, by setting the sound alarm device and/or the light alarm device, the sound alarm device executes sound alarm (such as a harsh buzzer) or plays preset voice information, and the light alarm device emits glaring light, both of which are used to effectively remind the staff that the battery 2 is damaged and is maintained in time.
Further, well high pressure hangs energy storage system's liquid cooling PACK directly still includes: a main power supply and a backup power supply for supplying power to the gas detection sensor 4 and the controller 3.
It should be noted that, be used for providing the main power supply and the stand-by power supply to gaseous detection sensor 4, controller 3 provides the electric energy through the setting, when the main power supply is normal, be gaseous detection sensor 4 through the main power supply, controller 3 supplies power, and when the main power supply breaks down, it supplies power for the fire extinguishing system to launch stand-by power supply, guarantee that gaseous detection sensor 4 can real-time work, and then can be in the time of combustible gas appearing in casing 1, can in time discover, and then accessible controller 3 breaks off being connected of battery 2 and electric wire netting, avoid battery 2 short circuit to influence the electric wire netting operation.
Specifically, the main power supply is a high-voltage isolation power supply, and the standby power supply is a high-level direct-current bus power supply.
It should be noted that the main power source is set to be higher than the isolated power source, and the standby power source is set to be a high-level direct-current bus power source, so that reliable electric energy can be provided for the fire-fighting system.
Preferably, the utility model discloses can also set up the main power supply into high-order direct current bus power supply, stand-by power supply sets up to the high voltage isolation power.
To facilitate understanding of the above solution, the solution is further described below with reference to fig. 1 to 3.
The utility model discloses on traditional liquid cooling battery module protection level IP65 basis, increase pressure release mouth (window) on structural design, improve the security and the reliability of medium and high voltage energy storage system liquid cooling, increase the operation condition of pressure release mouth also convenient to observe the battery inside from the outside, when the battery appears the thermal runaway in the liquid cooling PACK and appears smoking, even catch fire the other extreme condition, the pressure release mouth (window) is broken by pressure, prevents that the liquid cooling PACK from exploding because internal pressure is too big; the high-level electricity taking technology is adopted to respectively supply power to the gas detection sensor and the driver of the aerosol fire extinguisher, when the temperature of the battery core is increased due to thermal runaway, combustible gas such as hydrogen, methane and the like is separated out, the gas detection sensor detects the combustible gas, the controller controls the alarm and simultaneously sends out a tripping command, and when serious smoking occurs or even ignition occurs, the driver acts to enable the aerosol fire extinguisher to spray aerosol with certain concentration and dosage, and open fire is rapidly extinguished. The design improves the safety of the medium-high voltage battery energy storage system to the PACK level, ensures the overall fire safety of the medium-voltage direct-hanging energy storage system, and avoids the spreading of fire disasters and larger loss.
The utility model discloses following beneficial effect has:
for a medium-high voltage energy storage system, the defect of the liquid cooling battery module protection level IP65 in structural design is overcome, a pressure relief opening (window) is added, the explosion phenomenon caused by overlarge internal pressure of the liquid cooling PACK is eliminated, and the effect of safe pressure relief is achieved; a gas sensor is added to realize early detection and early warning, the time of a gold 30s thermal runaway window of the battery cell is grasped, and the risk of thermal runaway of the battery cell is reduced; adopt the high pressure to get the electric mode, guarantee that gas sensor, aerosol detect starting drive are reliable, the safe power supply, take place under the thermal runaway condition that appears smoking, even catch fire when electric core, internal pressure breaks through pressure release mouth (window), and the driver starts, and drive aerosol fire extinguisher sprays with certain concentration and dose, puts out the battery open fire rapidly, fixes a position accurate to every battery module, prevents that the conflagration from spreading.
The utility model discloses still adopt high-order DC bus to get the electricity and keep apart with the high pressure and get the electric mode, and high-order DC bus gets the electricity and keeps apart with the high pressure and gets each other for stand-by power supply, guarantees to supply power to driver and gas detection sensor stability.
The utility model discloses a high-middle pressure hangs energy storage system's gaseous detection sensor signal accessible optic fibre directly and passes to master control and battery management system on, the master control sends standby or trip signal, cuts off the high-middle pressure and directly hangs being connected of energy storage system and electric wire netting, passes the signal to backstage EMS monitored control system through master control or battery management system simultaneously, backstage EMS reports to the police, fixes a position, takes notes relevant information.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a well high pressure hangs energy storage system's liquid cooling PACK directly which characterized in that includes: a housing, a controller, a battery, and a gas detection sensor;
the battery is sealed in the shell;
the shell is provided with a pressure relief opening, and the pressure relief opening is used for opening when the pressure in the shell is greater than a preset value;
the controller is used for controlling the connection and disconnection of the battery and an external power grid;
gaseous detection sensor sets up in the casing, gaseous detection sensor with the controller links to each other, gaseous detection sensor is used for detecting combustible gas, works as when gaseous detection sensor detects combustible gas, gaseous detection sensor to the controller sends the signal of telecommunication, the controller control the battery disconnects with outside electric wire netting.
2. The liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system according to claim 1, wherein the number of the gas detection sensors is multiple;
the gas detection sensors are uniformly distributed in the shell.
3. The liquid-cooled PACK of the medium-high voltage direct-hanging energy storage system according to claim 1, further comprising: a fire extinguishing device disposed within the housing;
when the gas detection sensor detects combustible gas, the gas detection sensor sends an electric signal to the fire extinguishing device;
and when the fire extinguishing device receives the electric signal, the fire extinguishing device is started to extinguish fire.
4. The liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system according to claim 3, wherein the fire extinguishing apparatus comprises: a driver and an aerosol fire extinguisher;
the driver is connected with the gas detection sensor, and the driver is used for driving the aerosol fire extinguisher to start when receiving the electric signal.
5. The liquid-cooled PACK of the medium-high voltage direct-hanging energy storage system according to claim 1, further comprising: an alarm device;
the controller is used for sending an alarm signal to the alarm device when receiving the electric signal;
the alarm device is connected with the controller and used for executing alarm based on the alarm signal.
6. The liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system according to claim 5, wherein the alarm device comprises:
the sound alarm device is used for executing sound alarm based on the alarm signal or playing preset voice information based on the alarm signal;
and/or the light alarm equipment is used for executing light alarm based on the alarm signal.
7. The liquid-cooled PACK of the medium-high voltage direct-hanging energy storage system according to claim 1, further comprising: a main power supply and a backup power supply for providing power to the gas detection sensor, the controller.
8. The liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system according to claim 7, wherein the main power supply is a high-voltage isolation power supply, and the standby power supply is a high-level direct-current bus power supply.
9. The liquid-cooled PACK of a medium-high voltage direct-hanging energy storage system according to claim 7, wherein the main power supply is a high-level DC bus power supply, and the standby power supply is a high-voltage isolation power supply.
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CN114259666A (en) * | 2022-01-11 | 2022-04-01 | 海南金盘科技储能技术有限公司 | Liquid cooling PACK of energy storage system is directly hung to well high pressure |
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CN114259666A (en) * | 2022-01-11 | 2022-04-01 | 海南金盘科技储能技术有限公司 | Liquid cooling PACK of energy storage system is directly hung to well high pressure |
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