CN112018297A - Battery fire protection system, energy storage battery module and echelon utilization system - Google Patents
Battery fire protection system, energy storage battery module and echelon utilization system Download PDFInfo
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- CN112018297A CN112018297A CN202011033229.7A CN202011033229A CN112018297A CN 112018297 A CN112018297 A CN 112018297A CN 202011033229 A CN202011033229 A CN 202011033229A CN 112018297 A CN112018297 A CN 112018297A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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Abstract
The invention discloses a battery fire protection system, an energy storage battery module and a echelon utilization system, wherein the battery fire protection system comprises: the battery rack is provided with a battery bin suitable for placing the energy storage battery module; the bin wall of the battery bin is composed of fireproof partition boards; the fireproof partition plate is composed of a plurality of layers of flexible fireproof plates and fireproof grids. So set up, can be when energy storage battery module conflagration or explosion take place, fire barrier can control fire scope or explosion range in certain extent well, can prevent that the conflagration from stretching to the energy storage battery module in other nearby battery houses. And, when producing the explosion, flexible PLASTIC LAMINATED and fire prevention grid can strike local conflagration heat source and detonation and cushion, can release the energy that the conflagration produced, restrict the conflagration to protect other energy storage battery modules not receive the damage, thereby reduce economic loss.
Description
Technical Field
The invention relates to the technical field of large-scale energy storage, in particular to a battery fire prevention system, an energy storage battery module and a echelon utilization system.
Background
In the megawatt-level large-scale energy storage field, along with popularization and application of a large-scale battery energy storage technology, fire prevention of a large-scale battery system is a difficult problem in the field at present. Because the existing battery system is placed in a space surrounded by the partition plates on the battery rack, the partition plates are usually made of toughened glass, and heat dissipation holes for heat dissipation of the battery system are arranged on the glass.
Because when the conflagration takes place, can't carry out timely conflagration early warning to extensive battery system to and can't in time keep apart battery system after the conflagration takes place, lead to that battery system is burnt out after the conflagration takes place, and the shock wave that battery system explosion produced can damage the battery frame, and cause the damage to the battery system in other spaces, thereby cause great economic loss. On the other hand, due to the characteristics of the battery system itself, if the fire cannot be extinguished in time, a fire may continuously spread to a nearby battery system without space protection or space damage, resulting in increased loss.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is the problem of large economic loss caused by the large-scale battery system after the fire occurs in the prior art. Thereby providing a battery fire protection system, an energy storage battery module and a echelon utilization system.
In order to achieve the above object, an embodiment of the present invention provides a battery fire protection system, including: the battery rack is provided with a battery bin suitable for placing the energy storage battery module; the battery compartment is composed of fireproof partition plates; the fireproof partition plate is composed of a plurality of layers of flexible fireproof plates and fireproof grids.
Optionally, the battery compartment is provided with the compartment walls only at the upper end, the lower end and the two sides.
Optionally, the flexible fireproof plate and the fireproof grating are compounded and fixed with the battery rack through bolts.
Optionally, the outermost layer of the fire barrier is the flexible fire barrier.
Optionally, the flexible fire resistant panel is an asbestos panel.
Optionally, the fire protection grate is a metal mesh with impact strength.
Optionally, the flexible fire protection plate and the edge of the fire protection grate are riveted.
Optionally, the flexible fireproof plate is provided with a through hole.
The embodiment of the invention also provides an energy storage battery module, which comprises: the energy storage battery modules are formed by connecting a plurality of energy storage battery monomers in series and parallel; the positive electrode bus bar is connected with the positive electrode output ends of the energy storage battery modules; and the negative bus bar is connected with the negative output ends of the energy storage battery modules.
Optionally, the positive output end and the negative output end are oppositely arranged on two sides of the energy storage battery module.
Optionally, the energy storage battery module further includes: and the protector is arranged between the positive output end and the positive bus bar and/or between the negative output end and the negative bus bar.
Optionally, the protector is a circuit breaker or a fuse.
The embodiment of the invention also provides a echelon utilization system, which comprises: a battery fire protection system as defined in any preceding claim and an energy storage battery module as defined in any preceding claim.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1. the embodiment of the invention provides a battery fire protection system, which comprises: the battery rack is provided with a battery bin suitable for placing the energy storage battery module; the bin wall of the battery bin is composed of fireproof partition boards; the fireproof partition plate is composed of a plurality of layers of flexible fireproof plates and fireproof grids.
So set up, can be when energy storage battery module conflagration or explosion take place, fire barrier can control fire scope or explosion range in certain extent well, can prevent that the conflagration from stretching to the energy storage battery module in other nearby battery houses. And, when producing the explosion, flexible PLASTIC LAMINATED and fire prevention grid can strike local conflagration heat source and detonation and cushion, can release the energy that the conflagration produced, restrict the conflagration to protect other energy storage battery modules not receive the damage, thereby reduce economic loss.
2. According to the embodiment of the invention, the battery frame is provided with the open channel at the front side and/or the rear side of the battery compartment, so that energy and heat radiation generated by explosion can be fully released from front to back, a fire is limited, other adjacent energy storage battery modules can be protected from being damaged, and the fire loss is reduced to the maximum extent.
3. According to the embodiment of the invention, the flexible fireproof plates and the fireproof grating are alternately arranged, so that the strength of the fireproof partition plate can be enhanced, and the fireproof partition plate can sufficiently resist energy generated by explosion of the energy storage battery module when a fire disaster occurs, so that other energy storage battery modules are protected from being damaged, and the economic loss is reduced.
4. According to the embodiment of the invention, the outermost layer of the fireproof partition board is set as the flexible fireproof board, so that the radiation direction of a heat source can be directly changed in a flexible buffering manner, and the energy storage battery module nearby can be protected.
5. According to the embodiment of the invention, the through hole is formed in the flexible fireproof plate, so that the heat dissipation effect of the energy storage battery module in the battery compartment can be achieved, the fireproof and explosion-proof effects can be achieved, and the normal work of the energy storage battery module can be ensured.
6. The embodiment of the invention provides an energy storage battery module, which comprises: the energy storage battery modules are formed by connecting a plurality of energy storage battery monomers in series and parallel; the positive electrode bus bar is connected with the positive electrode output ends of the energy storage battery modules; and the negative bus bar is connected with the negative output ends of the energy storage battery modules.
So set up, through being connected energy storage battery module's anodal output and anodal busbar, the negative pole output is connected with the negative pole busbar for need not to connect through the flexible conductor between a plurality of energy storage battery modules. After the plurality of energy storage battery modules are connected through the positive bus bar and the negative bus bar, short circuit can not occur due to the fact that a certain distance exists between the positive bus bar and the negative bus bar, and therefore short circuit faults between the positive pole and the negative pole of the energy storage battery modules are solved.
7. According to the invention, the positive output end and the negative output end are oppositely arranged on two sides of the energy storage battery module, so that the distance between the positive bus bar and the negative bus bar can be increased to the greatest extent, and the short circuit fault between the positive electrode and the negative electrode of the energy storage battery module can be avoided.
8. According to the invention, by arranging the protector, when the inside of the energy storage battery module breaks down, the circuit can be disconnected, so that the energy storage battery module is protected. Moreover, the energy storage battery module is open compared with a battery plug box in the prior art, when the energy storage battery module breaks down, the energy storage battery monomer which breaks down can be replaced, and the energy storage battery module is not required to be replaced integrally. And when the battery capacity of the single energy storage battery is attenuated to be below the preset value of the rated capacity, the protector is directly disconnected, and the single energy storage battery is replaced, so that the single replaced energy storage battery can be subjected to resource treatment, and the single energy storage battery is utilized in a gradient manner.
9. The present invention also provides a echelon utilization system, including: a battery fire protection system as defined in any preceding claim and an energy storage battery module as defined in any preceding claim.
So set up, can put energy storage battery monomer on the battery frame of on-the-spot assembly, technical staff can carry out nimble series-parallel connection according to the demand of different application scenarios and according to actual conditions to energy storage battery monomer, constitutes the energy storage battery module of different power. Moreover, technicians can replace the energy storage battery monomer at any time in the later period conveniently. Therefore, the replaced single energy storage battery can be subjected to resource treatment, and the single energy storage battery can be utilized in a gradient manner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for a worker of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery rack according to an embodiment of the invention;
FIG. 2 is a schematic view of a fire barrier in accordance with an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an energy storage battery module according to an embodiment of the invention.
Reference numerals:
1-energy storage battery monomer; 2-an energy storage battery module; 3-a protector; 4-positive bus bar; 5-a negative bus bar; 6-electrical load; 7-a battery holder; 8-a fire barrier; 9-a through hole; 10-flexible fire-proof plate; 11-fire protection grids.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a worker skilled in the art without creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases by a worker of ordinary skill in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the megawatt-level large-scale energy storage field, along with popularization and application of a large-scale battery energy storage technology, fire prevention of a large-scale battery system is a difficult problem in the field at present. Because the existing battery system is placed in a space surrounded by the partition plates on the battery rack, the partition plates are usually made of toughened glass, and heat dissipation holes for heat dissipation of the battery system are arranged on the glass. Because when the conflagration takes place, can't carry out timely conflagration early warning to extensive battery system to and can't in time keep apart battery system after the conflagration takes place, lead to that battery system is burnt out after the conflagration takes place, and the shock wave that battery system explosion produced can damage the battery frame, and cause the damage to the battery system in other spaces, thereby cause great economic loss. On the other hand, due to the characteristics of the battery system itself, if the fire cannot be extinguished in time, a fire may continuously spread to a nearby battery system without space protection or space damage, resulting in increased loss.
The battery fire prevention system, the energy storage battery module and the echelon utilization system provided by the embodiment of the invention can solve the problem of large economic loss caused by a large-scale battery system after a fire disaster occurs in the prior art.
Example 1
As shown in fig. 1, the embodiment of the present invention provides a battery fire protection system, which includes a battery rack 7 and a battery compartment.
The battery compartment is arranged on the battery frame 7 and is suitable for placing the energy storage battery module. The battery compartment is surrounded by a fire barrier 8. The fire barrier 8 consists of a flexible fire protection plate 10 and a fire protection grate 11. Of course, to ensure the strength of the fire barrier 8, the fire barrier 8 may be composed of multiple layers of flexible fire-proof boards 10 and multiple layers of fire-proof grids 11.
So set up, can be when energy storage battery module conflagration or explosion take place, fire barrier 8 can be well with fire hazard range or explosion range control in certain extent, can prevent that the conflagration from stretching to the energy storage battery module in other nearby battery houses. And, when producing the explosion, flexible PLASTIC LAMINATED 10 and fire prevention grid 11 can be strikeed and cushion local conflagration heat source and detonation, can release the energy that the conflagration produced, restrict the conflagration to protect other energy storage battery module not receive the damage, thereby reduce economic loss.
In the embodiment of the present invention, the fire barrier 8 is not provided on the front side and the rear side of the battery compartment, and the fire barrier 8 is provided only on the upper, lower, left, and right portions. The battery holder 7 is also provided with open channels at the front and rear sides of the battery compartment. Specifically, in the battery fire protection system, the battery racks 7 are arranged side by side, and a certain safety distance is arranged between every two rows of battery racks 7, so that the above-mentioned open channel is arranged between the safety distances.
So set up, can fully release the energy and the heat radiation that the explosion produced in the position around the battery compartment to restrict the conflagration, can protect adjacent other energy storage battery module not infringed, furthest reduces the fire loss.
Alternatively, in the embodiment of the present invention, the fire barrier 8 is formed by combining a flexible fire-proof plate 10 and a fire-proof grid 11, and the fire barrier 8 and the battery rack 7 are fixed by bolts.
So set up, can strengthen the intensity of fire barrier 8 for when the conflagration takes place, fire barrier 8 is enough to keep out the energy that the energy storage battery module explosion produced, thereby protects other energy storage battery modules not to receive the damage, thereby reduces economic loss.
Specifically, the outermost layer of material may be provided as the flexible fireproof plate 10, and the radiation direction of the heat source may be directly changed in a flexible buffering manner, so that the energy storage battery module nearby may be protected.
In the embodiment of the invention shown in figure 2, the fire barrier 8 is formed from three layers of material, a first layer being a flexible fire barrier 10, a second layer being a fire barrier grid 11 and a third layer being a flexible fire barrier 10. The flexible fire shield 10 is to be contrasted with rigid fire-resistant material, which may be, for example, asbestos board, glass wool, etc., and the rigid fire shield may be, for example, concrete, cement mortar, etc. The fire protection grate 11 may be a metal mesh with a certain strength to ensure that the fire protection grate 11 does not melt and damage under the high temperature and impact conditions of a fire.
The edge of the fireproof partition plate 8 is provided with a via hole, and the multilayer flexible fireproof plate 10 and the multilayer fireproof grating 11 are directly riveted through rivets.
Optionally, in the embodiment of the invention, the flexible fireproof plate 10 is provided with the through hole 9, so that the heat dissipation function of the energy storage battery module in the battery compartment can be achieved, the fireproof and explosion-proof functions can be achieved, and the normal operation of the energy storage battery module can be ensured.
Example 2
As shown in fig. 3, an embodiment of the invention provides an energy storage battery module, which includes: a plurality of energy storage battery modules 2, a positive busbar 4 and a negative busbar 5, and a battery fire protection system as described in any of the above embodiments.
The energy storage battery module 2 is formed by connecting a plurality of energy storage battery monomers 1 in series and parallel, an anode output end and a cathode output end are formed on the energy storage battery module 2, and a certain distance exists between the anode output end and the cathode output end. The positive outputs of all the energy storage battery modules 2 are all connected to a positive busbar 4, and the negative outputs of all the energy storage battery modules 2 are all connected to a negative busbar 5. Because the positive output end and the negative output end have a certain distance, a certain distance also exists between the positive bus bar 4 and the negative bus bar 5. The distance can be determined by a person skilled in the art according to the actual situation.
So set up, through being connected energy storage battery module 2's anodal output and anodal busbar 4, the negative pole output is connected with negative pole busbar 5 for need not to connect through the flexible conductor between a plurality of energy storage battery module 2. After the energy storage battery modules 2 are connected through the positive electrode bus bar 4 and the negative electrode bus bar 5, the short circuit condition cannot occur due to the certain distance between the positive electrode bus bar 4 and the negative electrode bus bar 5, and therefore the short circuit fault between the positive electrode and the negative electrode of the energy storage battery modules 2 is solved.
Optionally, in some embodiments of the present invention, the positive output end and the negative output end of the energy storage battery module 2 are disposed on two sides of the energy storage battery module 2, opposite to each other.
The bus-bar method widens the distance between the anode and the cathode of the energy storage battery module 2, so that the distance between the led bus-bars is correspondingly widened, the safety distance and the strength of the bus-bars are improved, the condition of mutual lap joint between carriers is avoided, and the short circuit risk is reduced.
According to the invention, the positive output end and the negative output end are oppositely arranged on two sides of the energy storage battery module 2, so that the distance between the positive bus bar 4 and the negative bus bar 5 can be increased to the greatest extent, and the short circuit fault between the positive electrode and the negative electrode of the energy storage battery module 2 can be avoided.
Optionally, in some embodiments of the present invention, the energy storage battery module further includes a protector 3, and the protector 3 is disposed between the positive output end and the positive bus bar 4, and between the negative output end and the negative bus bar 5.
Of course, the protector 3 may be provided only between the positive output terminal and the positive bus bar 4 or between the negative output terminal and the negative bus bar 5. The present embodiment is merely an example, and does not limit the position where the protector 3 is disposed. The technical personnel in the field can change the setting position of the protector 3 according to the actual situation, and can play corresponding protective action.
The protector 3 may be a circuit breaker and a fuse connected in series. Of course, the protector 3 may also be a separately provided breaker or fuse.
According to the invention, by arranging the protector 3, when a fault occurs in the energy storage battery module 2, the circuit can be disconnected, so that the energy storage battery module 2 is protected. Moreover, because the energy storage battery module 2 of the present application is open compared with the battery plug box in the prior art, when the energy storage battery module 2 fails, the failed energy storage battery cell 1 can be replaced without replacing the energy storage battery module 2 as a whole.
Moreover, when the battery capacity of the energy storage battery monomer 1 is attenuated to be below the preset value of the rated capacity, the protector 3 is directly disconnected, and the energy storage battery monomer 1 can be directly replaced, so that the replaced energy storage battery monomer 1 can be subjected to resource treatment, and the gradient utilization of the energy storage battery monomer 1 is realized. Thereby play and reduce energy storage battery module 2 fault rate, improve the stability of energy storage battery module, the effect of equipment flexibility, finally can promote the security and the whole generating efficiency of energy storage battery module.
Example 3
The present invention also provides a echelon utilization system, including: the battery fire protection system and the energy storage battery module according to the above embodiments.
So set up, technical staff can be when the site operation, put energy storage battery monomer 1 on the battery frame 7 of site assembly, and technical staff can also carry out nimble series-parallel connection according to the demand of different application scenarios and according to actual conditions to energy storage battery monomer 1, constitutes the energy storage battery module 2 of different power. In addition, technicians can replace the energy storage battery monomer 1 at any time in the later period conveniently. Therefore, the replaced energy storage battery monomer 1 can be subjected to resource treatment, and the echelon utilization of the energy storage battery monomer 1 is realized. The energy storage battery module 2 is prevented from being damaged once, and the battery plug box is not required to be integrally replaced. Thereby increasing the flexibility of the energy storage battery module 2.
Optionally, in some embodiments of the present invention, a portion of each battery compartment corresponding to the energy storage battery cell 1 is provided with a mounting and dismounting opening. Technicians can replace and install the energy storage battery monomer 1 through the dismounting and mounting port.
The positive electrode bus bar 4 and the negative electrode bus bar 5 are provided on the battery holder 7. In order to ensure the maximum distance between the positive busbar 4 and the negative busbar 5, the positive output end and the negative output end of each energy storage battery module 2 can only be respectively led out from two opposite or adjacent sides of the battery rack 7 and then connected to the positive busbar 4 and the negative busbar 5 in parallel, and the converged large current is connected to the electric load 6 through an independent cable. The positive electrode bus bar 4 and the negative electrode bus bar 5 are bus hard bus bars.
According to the invention, the positive electrode bus bar 4 and the negative electrode bus bar 5 are arranged on the battery frame 7, so that the distance between the positive electrode and the negative electrode of the energy storage battery module 2 can be widened to the greatest extent, and the fault that the short circuit is easy to occur between the positive electrode and the negative electrode of the energy storage battery module 2 can be avoided.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Variations and modifications in other variations may occur to those skilled in the art based upon the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (13)
1. A battery fire protection system, comprising:
the battery rack (7) is provided with a battery bin suitable for placing the energy storage battery module (2); the battery compartment is surrounded by a fireproof partition plate 8;
the fireproof partition plate (8) is composed of a flexible fireproof plate (10) and a fireproof grating (11).
2. The battery fire protection system according to claim 1, wherein the battery rack (7) is not provided with the fire barrier (8) on the front and rear sides and is provided with an open channel on the front and/or rear side of the battery compartment.
3. The battery fire protection system according to claim 1, wherein the fire barrier (8) is formed by combining the flexible fire protection plate (10) and the fire protection grid (11) and is fixed to the battery frame (7) by bolts.
4. A battery fire protection system according to any of claims 1-3, wherein the outermost layer of the fire barrier (8) is the flexible fire protection plate (10).
5. A battery fire protection system according to any of claims 1-3, wherein the flexible fire protection plate (10) is an asbestos plate.
6. Fire protection system for batteries according to any of claims 1 to 3, characterized in that said fire protection grid (11) is a metal mesh with impact strength.
7. A battery fire protection system according to any of claims 1-3, wherein the edges of the multi-layer flexible fire protection plate (10) and the multi-layer fire protection grid (11) are riveted.
8. A battery fire protection system according to any of claims 1-3, wherein the flexible fire protection plate (10) is provided with through holes (9).
9. An energy storage battery module, comprising:
the battery fire protection system of any of claims 1-8, and,
the energy storage battery comprises a plurality of energy storage battery modules (2), wherein each energy storage battery module (2) is formed by connecting a plurality of energy storage battery monomers (1) in series and parallel;
the positive electrode bus bar (4) is connected with the positive electrode output ends of the energy storage battery modules (2);
and the negative electrode bus bar (5) is connected with the negative electrode output ends of the energy storage battery modules (2).
10. The energy storage battery module as recited in claim 9, wherein the positive output end and the negative output end are oppositely disposed on two sides of the energy storage battery module (2).
11. The energy storage battery module of claim 9, further comprising:
and the protector (3) is arranged between the positive output end and the positive bus bar (4) and/or between the negative output end and the negative bus bar (5).
12. Energy storage battery module according to claim 11, characterized in that the protector (3) is a circuit breaker and/or a fuse.
13. A echelon utilization system, comprising:
an energy storage battery module as claimed in any of claims 9 to 12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011033229.7A CN112018297A (en) | 2020-09-27 | 2020-09-27 | Battery fire protection system, energy storage battery module and echelon utilization system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011033229.7A CN112018297A (en) | 2020-09-27 | 2020-09-27 | Battery fire protection system, energy storage battery module and echelon utilization system |
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| CN111326824A (en) * | 2020-03-02 | 2020-06-23 | 深圳市科陆电子科技股份有限公司 | Cellular energy storage container |
| CN111653720A (en) * | 2020-07-07 | 2020-09-11 | 中国华电科工集团有限公司 | Energy storage battery module and echelon utilization system |
| CN212485476U (en) * | 2020-09-27 | 2021-02-05 | 中国华电科工集团有限公司 | Battery fire protection system, energy storage battery module and echelon utilization system |
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- 2020-09-27 CN CN202011033229.7A patent/CN112018297A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202111167U (en) * | 2011-07-07 | 2012-01-11 | 河南科隆集团有限公司 | Large-capacity battery combination module |
| CN110690375A (en) * | 2019-09-06 | 2020-01-14 | 力赛凡科技有限公司 | Composite construction's flame retardant coating and use battery system of this flame retardant coating |
| CN110649201A (en) * | 2019-10-12 | 2020-01-03 | 中车资阳机车有限公司 | Power battery module structure for locomotive |
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