CN217187557U - Energy storage power station depth defense system - Google Patents

Abstract

The utility model provides an energy storage power station defense system in depth, including battery compartment, at least one battery module, spray set, injection device and liquid storage tank, the battery compartment has the cabin, and battery module is located the cabin. The spraying device is used for spraying the battery module to extinguish fire, the injection device is used for injecting cooling liquid into the battery module, the liquid storage tank is located below the cabin, fire extinguishing fluid is filled in the liquid storage tank, and the battery module can fall into the fire extinguishing fluid under the action of gravity. The embodiment of the utility model provides an energy storage power station defense system in depth adopts depth formula defense and the passive theory, carries out putting out a fire of different dynamics to battery module, under the condition that need not more external drive, effectively suppresses the condition of a fire, furthest's reduction economic loss.

Description

Energy storage power station depth defense system

Technical Field

The utility model belongs to the technical field of energy storage power station technique and specifically relates to an energy storage power station defense system in depth.

Background

The lithium ion battery has the advantages of low self-discharge rate, high specific energy, environmental friendliness and the like, and is widely applied to energy storage power stations. With the rapid development of electrochemical energy storage power stations, some safety problems are gradually exposed, the energy storage power station explodes suddenly without signs, namely, the battery exceeds the safety technical bearing capacity under the influence of internal and external excitation sources, the battery is subjected to extreme abuse conditions, sudden thermal runaway is generated, a large amount of high-temperature combustible gas-liquid mixtures are released, oxygen in external air is met, explosion can occur under proper conditions, large-area fire is caused, the safety performance of the energy storage power station is seriously influenced, and serious economic loss is brought.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides an energy storage power station defense by depth system has excellent efficiency of putting out a fire, reduces economic loss to the at utmost.

According to the utility model discloses energy storage power station depth defense system, include: a battery bay and at least one battery module, the battery bay having a compartment, the battery module being located within the compartment; the spraying device is used for spraying the battery module to perform fire extinguishing operation; an injection device for injecting a cooling liquid into the battery module; the liquid storage tank is located below the cabin, fire extinguishing fluid is arranged in the liquid storage tank, and the battery module can fall into the fire extinguishing fluid under the action of gravity.

The embodiment of the utility model provides an energy storage power station defense system in depth adopts the active theory of depth formula defense and non-, through setting up the extinguishing device of spray set, injection device and the at least three kinds of different grade types of liquid storage tank, sprays, pours into cooling liquid, wholly and floods the mode such as carrying out the fire extinguishing on the different dynamics to battery module respectively through the outside, promptly the utility model discloses a defense system in depth is a tertiary defense system. When a fire occurs, different fire extinguishing modes can be adopted according to the danger level and the danger coefficient of the fire, or different fire extinguishing mode combinations are adopted to extinguish the fire, so that the fire is restrained from further expanding under the condition of not needing more external drives, and the economic loss is reduced to the maximum extent.

In some embodiments, the spraying device is a water mist spraying device for spraying a water mist to the battery module.

In some embodiments, the spray system includes a plurality of spray heads, and the plurality of spray heads are dispersedly disposed above the battery module.

In some embodiments, the injection device includes a reservoir located above the battery module such that cooling fluid within the reservoir can flow into the battery module under the force of gravity.

In some embodiments, the reservoir is a high pressure reservoir filled with a high pressure gas, and the cooling liquid is capable of flowing out of the reservoir and into the battery module under the pressure of the high pressure gas.

In some embodiments, the reservoir is mounted to the top of the battery compartment.

In some embodiments, the spray device is in communication with the fluid reservoir such that the spray device is capable of withdrawing fluid from the fluid reservoir.

In some embodiments, the defense-in-depth system includes a support connected with the battery module, the battery module being detachable from the support so that the battery module falls within the fire suppression fluid.

In some embodiments, the support is located between the chamber and the reservoir.

In some embodiments, the support is movably disposed relative to the reservoir such that the support is removable from under the battery module; alternatively, the support member may be rotatably disposed with respect to the liquid storage tank to disengage the battery module from the support member.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is an external view of a depth defense system according to an embodiment of the present invention.

Fig. 2 is a front view of a defense-in-depth system according to an embodiment of the invention.

Fig. 3 is a side view of a depth defense system according to an embodiment of the present invention.

Fig. 4 is a partial schematic view of a depth defense system according to an embodiment of the present invention.

Fig. 5 is a partial schematic view of a depth defense system according to an embodiment of the present invention.

Reference numerals:

a battery compartment 10; a cabin 11; a battery module 20; a spray head 30; a liquid storage tank 40; a liquid reservoir 50; a support member 60.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The energy storage power station defense against depth system of an embodiment of the present invention is described below with reference to fig. 1 to 5. The defense-in-depth system includes a battery compartment 10, at least one battery module 20, a spray device, an injection device, and a reservoir 50.

Wherein the battery compartment 10 has a compartment 11 and the battery module 20 is located within the compartment 11. And the spraying device is used for spraying the battery module to perform fire extinguishing operation. The injection device is used for injecting cooling liquid into the battery module 20 so as to cool the battery module 20. The reservoir 50 is located below the chamber 11, and the reservoir 50 contains a fire extinguishing fluid into which the battery module 20 can fall under the action of gravity.

That is, the battery module 20 has two states, a normal state in which the battery module 20 is located within the compartment 11, and a fire suppression state in which the battery module 20 falls out of the compartment 11 into the reservoir 50 and is flooded with a fire suppression fluid, which may alternatively be water or another fluid having fire extinguishing properties. When the battery module 20 is flooded with fire extinguishing fluid, external oxygen is isolated, open flames are reduced, and the fire situation is effectively controlled. The battery module 20 that will take place the fire sinks in the fluid of putting out a fire and can realize with the quick physics isolation on the spot between the battery module 20 of other safety, effectively prevents to spread other battery modules 20, has improved the efficiency that the conflagration was handled. And, the utility model provides a defense in depth system adopts the passive theory, makes battery module 20 fall into liquid storage tank 50 under the effect of self gravity in, need not to apply external drive to battery module 20, has reduced the degree of difficulty of arranging of system.

The embodiment of the utility model provides an energy storage power station defense system in depth adopts the active theory of depth formula defense and non-, through setting up the extinguishing device of spray set, injection device and the at least three kinds of different grade types of liquid storage tank, sprays, pours into cooling liquid, wholly and floods the mode such as carrying out the fire extinguishing on the different dynamics to battery module respectively through the outside, promptly the utility model discloses a defense system in depth is a tertiary defense system. When a fire occurs, different fire extinguishing modes can be adopted according to the danger level and the danger coefficient of the fire, or different fire extinguishing mode combinations are adopted to extinguish the fire, so that the fire is restrained from further expanding under the condition of not needing more external drives, and the economic loss is reduced to the maximum extent.

The following describes a specific embodiment provided by the present invention by taking fig. 1 to 5 as an example.

As shown in fig. 2 and 3, the defense-against-depth system includes a battery compartment 10, three battery modules 20, a shower device, an injection device, and a liquid reservoir 50. In a normal state, i.e. when no fire is occurring, the battery modules 20 are all located in the compartment 11 of the battery compartment 10.

The spray device includes a spray head 30, and the spray device externally sprays an extinguishing fluid to the battery module 20 through the spray head 30. Optionally, the fire suppression fluid is cooling water.

In order to spray the battery modules 20 more completely, as shown in fig. 4, the spray head 30 is provided in plurality, and the plurality of spray heads 30 are dispersedly disposed above the battery modules 20. In this embodiment, the spray head 30 is located within the compartment 11 and is attached to the top of the battery compartment 10.

Alternatively, the spraying device is a water mist spraying device for spraying water mist to the battery module 20 through the spray head 30. When the water mist spraying device is turned on for fire extinguishing, high-pressure water mist is sprayed into the whole cabin 11 through the spray head 30 to inhibit thermal runaway of the battery module 20. Meanwhile, high-pressure water mist can enter the battery prefabricated cabin through the battery space of the battery module 20 and diffuse into the battery prefabricated cabin, so that thermal runaway of other areas of the battery module 20 is inhibited.

In other embodiments, the spraying device may include a spray head 30 and a spray gun (not shown), the spray head 30 is disposed as shown, the spray gun may be disposed outside the battery compartment 10 for supplementary and continuous cooling, and after the fire is extinguished, the spray gun is used for spray cooling for at least two hours to prevent reignition.

As shown in FIG. 2, the injection device includes a reservoir 40. The reservoir tank 40 is used to store a cooling liquid. The reservoir tank 40 is positioned above the battery module 20 so that the cooling fluid within the reservoir tank 40 can flow into the battery module 20 under the force of gravity. That is to say, the injection device in this embodiment is a passive device, and the injection device flows into the battery module 20 by using the gravity of the liquid itself, and does not need to be driven externally, thereby reducing the difficulty of system arrangement, and reducing the equipment cost and energy consumption.

Further, as shown in fig. 2, the reservoir 40 in this embodiment is located and installed above the battery compartment 10, the injection device further includes three injection pipes, the injection pipes are all communicated with the reservoir 40 and are communicated with the three battery modules 20 in a one-to-one correspondence manner, and the cooling liquid in the reservoir 40 is injected into the battery modules 20 through the injection pipes. The injection pipes can be independently controlled for injection, that is, the injection system can only perform injection cooling on the battery modules 20 in case of fire, so that the injection is more targeted.

In order to increase the injection speed of the cooling liquid, in the present embodiment, the liquid storage tank 40 is a high-pressure liquid storage tank, the high-pressure gas is filled in the liquid storage tank 40, and the cooling liquid in the liquid storage tank 40 can flow out of the liquid storage tank 40 and be injected into the battery module 20 under the pressure of the high-pressure gas. That is to say, the liquid storage pot 40 of this embodiment make full use of the passive theory, need not the condition of external drive, make cooling liquid pour into inside battery module 20 rapidly under high-pressure gas's effect, carry out cooling to battery module 20, effectively restrain the condition of a fire and further enlarge, reduced equipment and arranged the degree of difficulty and equipment cost, reduced system energy resource consumption.

Thus, the cooling liquid can more quickly fill the internal cavity of the battery module 20 under the action of pressure to perform emergency and continuous cooling on the battery module 20, prevent the battery module 20 from melting, keep the geometric integrity thereof and play a role in shielding.

Alternatively, the spray device may be in communication with the reservoir 40 such that the spray device is capable of removing liquid from the reservoir 40. Of course, the water for the spray device can also be taken from the fire-fighting pipeline, and a fire-fighting box is arranged nearby the battery compartment 10 to facilitate taking water.

The defense-against-depth system further includes a support 60, the support 60 being connected with the battery module 20, and the battery module 20 being detachable from the support 60 so that the battery module 20 falls into the fire extinguishing fluid under the influence of its own weight. That is, in a normal state, the support member 60 is connected to the battery module 20 to support the battery module 20 such that the battery module 20 is located in the compartment 11, and when a fire occurs and the battery module 20 is required to fall into the liquid storage tank, the support member 60 is separated from the battery module 20, so that the battery module 20 loses support and falls into the fire extinguishing fluid by its own weight.

As shown in FIG. 3, in the present embodiment, the support member 60 is a plate-like structure that is positioned between the chamber 11 and the reservoir 50. The support 60 is located under the battery module 20 for supporting the battery module 20.

Alternatively, the support 60 may be movably disposed with respect to the reservoir 50 such that the support 60 can be withdrawn from under the battery module 20 to lose support of the battery module 20 and drop the battery module 20.

Alternatively, the supporting member 60 may be rotatably disposed with respect to the reservoir 50 to disengage the battery module 20 from the supporting member 60. For example, as shown in fig. 1, the support 60 may be flipped down to lose support of the battery module 20, allowing the battery module 20 to drop.

In other embodiments, the support member 60 may have other configurations, such as a sling structure of the support member 60 detachably connected to the top of the battery module 20 and to the top wall of the compartment 11, and which slings the battery module 20 for lifting within the compartment 11. When a fire occurs and the battery module 20 is submerged in the fire extinguishing fluid, the slings break the connection with the battery module 20, causing the battery module 20 to drop. It is understood that the structural form of the supporting member 60 is not limited to the above plate-shaped structure or the supporting structure, and it is within the scope of the present invention that the supporting member 60 can support the battery module 20 and release the acting force of the battery module 20 under certain conditions so that the battery module can fall into the liquid storage tank 50 below.

It should be noted that, in order not to affect the dropping of the battery module 20, the injection pipe in the injection device may be connected to the battery module 20 in a disconnectable manner, for example, the battery module 20 is naturally separated from the injection pipe during the dropping of the battery module 20. Alternatively, the injection pipe may be also disposed so as not to affect the dropping of the battery module 20, i.e., the length of the injection pipe may be made greater than the dropping height of the battery module 20.

To sum up, the utility model provides an energy storage power station's depth defense system adopts tertiary depth defense theory and the combination of passive theory, through the extinguishing device who sets up three kinds of different grade types of spray set, injection device and liquid storage tank, sprays, pours into cooling liquid, wholly through the outside respectively and carries out the fire extinguishing on the different dynamics to battery module such as submerge, and efficiency of putting out a fire is good, can restrain the condition of a fire and stretch, furthest reduces economic loss.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on 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 therefore, 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. An energy storage power station defense against depth system, comprising:

a battery bay and at least one battery module, the battery bay having a compartment, the battery module being located within the compartment;

the spraying device is used for spraying water to the battery module to carry out fire extinguishing operation;

an injection device for injecting a cooling liquid into the battery module;

the liquid storage tank is located below the cabin, fire extinguishing fluid is arranged in the liquid storage tank, and the battery module can fall into the fire extinguishing fluid under the action of gravity.

2. The energy storage power station defense against depth system of claim 1, characterized in that the spraying device is a water mist spraying device for spraying water mist to the battery modules.

3. The energy storage power station defense against depth system as claimed in claim 1 or 2, characterized in that the spraying device includes a plurality of spray heads, and the plurality of spray heads are dispersedly disposed above the battery modules.

4. The energy storage power station defense against depth system of claim 1, wherein the injection device comprises a liquid reservoir located above the battery modules so that cooling liquid in the liquid reservoir can flow under gravity into the battery modules.

5. The energy storage power station defense against depth system of claim 4, characterized in that the liquid storage tank is a high-pressure liquid storage tank filled with high-pressure gas, the cooling liquid being able to flow out of the liquid storage tank and into the battery module under the pressure of the high-pressure gas.

6. The energy storage power station defense against depth system of claim 4, wherein the liquid storage tank is mounted on top of the battery compartment.

7. The energy storage power station defense against depth system of claim 4, wherein the spray device is in communication with the liquid storage tank so that the spray device can draw liquid from the liquid storage tank.

8. The energy storage power station defense against depth system of claim 1, including a support connected to the battery module, the battery module being detachable from the support so that the battery module falls into the fire suppression fluid.

9. The energy storage power station defense against depth system of claim 8, wherein the support is located between the chamber and the reservoir.

10. The energy storage power station defense system against depth as claimed in claim 9, characterized in that the support is movably arranged in relation to the reservoir, so that the support can be withdrawn from under the battery module; alternatively, the first and second electrodes may be,

the support member is rotatably disposed with respect to the liquid storage tank to disengage the battery module from the support member.

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