CN110496334A - A kind of LiFePO4 energy-accumulating power station battery module structure protected with Water Mist Fire Extinguishing Technique - Google Patents
A kind of LiFePO4 energy-accumulating power station battery module structure protected with Water Mist Fire Extinguishing Technique Download PDFInfo
- Publication number
- CN110496334A CN110496334A CN201910751609.5A CN201910751609A CN110496334A CN 110496334 A CN110496334 A CN 110496334A CN 201910751609 A CN201910751609 A CN 201910751609A CN 110496334 A CN110496334 A CN 110496334A
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- Prior art keywords
- battery
- battery modules
- opening
- power station
- shell
- Prior art date
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Links
- 239000003595 mist Substances 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052493 LiFePO4 Inorganic materials 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 9
- 239000000443 aerosol Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 239000005955 Ferric phosphate Substances 0.000 description 3
- 229940032958 ferric phosphate Drugs 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 3
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of LiFePO4 energy-accumulating power station battery module structures protected with Water Mist Fire Extinguishing Technique; including battery modules shell; battery is arranged on the inside of battery modules shell; distance of the battery upper surface apart from battery modules sheath top plate inner surface is more than or equal to 50cm, and the distance of battery side surface distance battery modules shell side wall inner surfaces is more than or equal to 20cm;It is provided with opening on a side plate of battery modules shell, fine mist spray head is protruded into from opening into battery modules shell, and the injection direction of fine mist spray head is towards the region between battery upper surface and battery modules sheath top plate inner surface;Mesh area is provided on other side plates of battery modules shell.The present invention, which can lean on, quickly puts out LiFePO4 energy-accumulating power station battery prefabricated cabin fire.
Description
Technical field
The present invention relates to a kind of LiFePO4 energy-accumulating power station battery module structure protected with Water Mist Fire Extinguishing Technique,
Belong to the technology that LiFePO4 energy-accumulating power station battery modules are carried out with fire-fighting protection.
Background technique
Ferric phosphate lithium cell has many advantages, such as that energy density is big, output voltage is high, has extended cycle life, environmental pollution is small,
It is widely used in various electronic equipments, electric car and electrochemical energy storage.Wherein LiFePO4 energy-accumulating power station adds up installation amount
Just grow steadily, will be more than 2000MW to the year two thousand twenty installation amount, annual growth is close to 70%, once fire occurs, seriously endangers
Power supply reliability and safety, social influence and very harmful.And at present worldwide, there are no one kind effectively to flutter
Go out the fire-extinguishing apparatus of LiFePO4 energy-accumulating power station battery prefabricated cabin fire, a large amount of energy-accumulating power station battery prefabricated cabin fire in home and abroad
Example is exactly good proves.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention, which provides, a kind of uses Water Mist Fire Extinguishing Technique
The LiFePO4 energy-accumulating power station battery module structure protected.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of LiFePO4 energy-accumulating power station battery module structure protected with Water Mist Fire Extinguishing Technique, including battery mould
Assembly housing, battery are arranged on the inside of battery modules shell, distance of the battery upper surface apart from battery modules sheath top plate inner surface
More than or equal to 50cm, the distance of battery side surface distance battery modules shell side wall inner surfaces is more than or equal to 20cm;
Opening (protruding into setting for fine mist spray head) is provided on a side plate of battery modules shell, opening
Top margin is consistent with battery modules sheath top plate inner surface height, and the bottom edge of opening is consistent with battery upper surface height or is higher than battery
Upper level (bottom edge for being typically designed opening is consistent with battery upper surface height), two vertical edges and affiliated side plate two of opening
The distance of a vertical edge is the 1/5~1/3 of the side plate width;
Mesh area is provided on other side plates of battery modules shell, the bottom edge of mesh area and battery upper surface are high
Degree is consistent or is higher than battery upper surface height, the top margin of mesh area lower than battery modules sheath top plate inner surface height 15~
20cm (the top margin area above of mesh area is to forbid opening area), two vertical edges of mesh area are perpendicular with affiliated side plate two
Side is consistent (two sides are slightly shorter also possible), and the percent opening of mesh area is 20~30%, in general to mesh
Diameter does not require.
Compared with the existing technology, we have carried out opening up opening to existing battery modules shell and punching forms mesh areas
The processing in domain limits the spacing of battery and battery modules outer casing inner wall, other not to existing battery modules outside
Shell did multiprocessing.It is understood that battery catches fire the case where having liquid splash generation, and companion in LiFePO4 energy-accumulating power station
With toxic, inflammable aerosol.Our line space designs to battery and battery modules outer casing inner wall, the case where allowing for liquid splash
It can be limited in battery modules shell, without in the battery prefabricated cabin of splashing, while liquid will not splash to blocking net
Therefore the mesh of bore region has considering for minimum spacing to the spacing between battery and battery modules outer casing inner wall, by multiple
Test, top spacing be greater than 50cm, side spacing be greater than 20cm when, almost just there is no liquid splash to battery modules shell with
The case where exterior domain (i.e. in battery prefabricated cabin), occurs;Certainly, this spacing is also not suitable for excessive, excessive to will increase entire battery
The size of module shell increases the volume of battery prefabricated cabin indirectly, it is proposed that top spacing is in 50~80cm, side spacing
Be in 20~36cm it is proper, this spacing, which also compares the water mists ejected conducive to fine mist spray head, can penetrate mesh
Area is diffused into battery prefabricated cabin.
We are the designs for forbidding opening area for having 15~20cm of top, this is also to examine when designing mesh areas
When considering liquid splash to battery modules cover top portion certain rebound can be generated, if side is not blocked, readily penetrate through net
Porose area is splashed to battery modules shell exterior region, affects the effect that liquid splash situation is limited in battery modules interior of shell
Fruit;By us to the liquid splash situation observation for the battery that catches fire and test of many times, design forbids opening area effect very bright
It is aobvious and effective.
When fire occurs for battery, toxic, inflammable aerosol can be accumulated in battery modules shell, and temperature is increased with aerosol
Increase, will increase the probability of battery explosion;Therefore we need to allow these aerosols that battery modules shell can be discharged, together
When avoid temperature fast lifting as far as possible;For this problem, we devise mesh area, and aerosol can be quickly discharged,
Reduce battery heating rate;Meanwhile when we start fine mist spray head, water mists also can be diffused into battery by mesh areas
In prefabricated cabin, cool down to battery prefabricated cabin.Accordingly, we are to have certain requirements to the percent opening of mesh areas, too very much not
The purpose for preventing liquid splash can be played, it is too small and be not easy to discharge aerosol;Aerosol discharge situation is observed by us and more
Secondary test designs the percent opening of opening area and (investigates in region, aperture fretwork area, which accounts for, investigates region cotton knot for 20~30%
Percentage).
We, without design mesh areas, are because the side is already provided with opening, airing function on the side plate of opening
It is very sufficient;In open area, the water mists of injection are less to be overflowed from the side for fine mist spray head setting simultaneously;But
This not says that mesh can not be arranged in one's respective area, and can be with reference to other regions setting mesh area;It is not recommended that allowing opening
Through entire side, the case where allowing for liquid splash.
It preferably, is the 1/4 of the side plate width at a distance from two vertical edges of two vertical edges of the opening and affiliated side plate, net
The percent opening of bore region is 25%;The value is that we test the preferred values of acquisition.
It preferably, further include fine mist spray head, fine mist spray head is protruded into from opening into battery modules shell, water mists spray
The injection direction of head is towards the region between battery upper surface and battery modules sheath top plate inner surface.
Specifically, the fine mist spray head is flat fan structure, arc direction is provided with a row on fan-shaped curved surface
Nozzle, in a plane, the general recommendations plane is parallel to battery upper surface to all nozzle spray directions.
Relative to now common round spray head, we devise fine mist spray head, are on the one hand to reduce entire thin
The thickness of water mist spraying head can smoothly be mounted on battery modules to the change of existing battery modules shell less
In shell, row's nozzle on the other hand, which is arranged, along camber line also can allow water mists to be covered with battery modules housing interior volume rapidly,
What it was ejected is to have certain thickness covering of the fan water mists.According to typical circular spray head, on the one hand, the water mists of ejection are to fall
Cone, most of water mists can be sprayed on battery modules outer casing inner wall, formed big droplet and water flow, lost going out for water mists
Fire action;On the other hand, it is not easy to be installed in battery modules.The design of fine mist spray head and its nozzle spray direction
Setting, the water mists for enabling it to generate are spread in battery modules shell rapidly, while being also easy to spread from mesh area
It goes out, reduces its water accumulating volume on battery, give a degree of protection to battery.About the standard of water mists, ginseng
Examine the related fire protection criteria in China.
Preferably, the plane where all nozzle spray directions is parallel to battery upper surface, and plane table on battery
Within the scope of the 2cm up and down of face and battery modules sheath top plate inner surface middle layer, it is easier to water mists be allowed uniformly to spread.
Preferably, the corresponding central angle of fan-shaped curved surface of the fine mist spray head is 100 °~180 °.
Preferably, the nozzle is circle.
Specifically, opening, which exists, does not block area after fine mist spray head is protruded into from the center of opening into battery modules shell
Domain.
The utility model has the advantages that the LiFePO4 energy-accumulating power station battery mould provided by the invention protected with Water Mist Fire Extinguishing Technique
Group structure can spray water mists into battery modules shell when fire occurs, and Water Mist Fire Extinguishing Technique is to put out phosphoric acid
The effective ways of iron lithium energy-accumulating power station battery prefabricated cabin fire, and battery can not be caused to damage, therefore the present invention can
By quickly putting out LiFePO4 energy-accumulating power station battery prefabricated cabin fire;This case devises a kind of from the thin water of one side injection first
Mist, from the thought of other side diffusion water mists, solve water mists and be easy to encounter the entity structure in ferric phosphate lithium cell mould group
And the problem of becoming water flow, damage is caused to battery;Then a kind of battery modules shell and fine mist spray head structure, In are devised
Installation question of the spray head in small space is solved in the case where to the change less of existing battery modules shell;It is diffused into battery
Water mists other than module shell can also help to realize the Fire-fighting Problems of other objects prefabricated cabin Nei;Due to using water source
Fire extinguishing, therefore the present invention is a kind of willing extinguishing device, can effectively avoid ferric phosphate lithium cell mould group because heat is lost
Control generates various combustible gases, avoids these combustible gases that from cannot detecting as early as possible and other continuous problems for generating.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the schematic perspective view of battery modules shell (top plate is not drawn into);
Fig. 3 is the overlooking structure diagram of battery modules shell (top plate is not drawn into);
Fig. 4 is the side plate schematic diagram of setting opening;
Fig. 5 is the side plate schematic diagram that mesh area is arranged;
Fig. 6 is fine mist spray head and its water mists overlooking structure diagram ejected;
Fig. 7 is a side structure schematic view of fine mist spray head;
Fig. 8 is another side structure schematic view of fine mist spray head;
It include: 1- battery in figure;2- battery modules shell;3- fine mist spray head;4- opening;The mesh area 5-;6- battery
Module shell top plate inner surface, 3-1- nozzle;3-2- pipe network connector;The water mists that 3-3- fine mist spray head ejects.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
It is as shown in Figure 1, 2, 3 a kind of LiFePO4 energy-accumulating power station battery modules protected with Water Mist Fire Extinguishing Technique
Structure, including battery modules shell 2 and a fine mist spray head 3, the setting of battery 1 is on 2 inside of battery modules shell, battery 1
The distance of 2 top plate inner surface of surface distance battery modules shell is 50cm, and 1 side surface of battery is apart from 2 side plate of battery modules shell
The distance of inner surface is 20cm.
As shown in figure 4, be provided with opening 4 on a side plate of battery modules shell 2, be open 4 top margin and battery mould
2 top plate inner surface height of assembly housing is consistent, be open 4 bottom edge it is consistent with 1 upper level of battery, be open 4 two vertical edges with
The distance of affiliated two vertical edges of side plate is the 1/4 of the side plate width;Fine mist spray head 3 is stretched from opening 4 into battery modules shell 2
Enter, the injection direction of fine mist spray head 3 is towards the region between 2 top plate inner surface of 1 upper surface of battery and battery modules shell.
As shown in figure 5, being provided with mesh area 5, the bottom edge of mesh area 5 on other side plates of battery modules shell 2
Consistent with 1 upper level of battery, the top margin of mesh area 5 is lower than 2 top plate inner surface 15~20cm of height of battery modules shell,
Two vertical edges of mesh area 5 are consistent with two vertical edges of affiliated side plate, and the percent opening of mesh area 5 is 25%.
As shown in Fig. 6,7,8, the fine mist spray head 3 is flat fan structure, is set on fan-shaped curved surface along arc direction
It is equipped with row's nozzle 3-1, all nozzle 3-1 injection directions (general settable edge is in the certain area of fan-shaped subsequent corrosion direction)
In a plane, which is parallel to 1 upper surface of battery, and 2 top plate inner surface of 1 upper surface of battery and battery modules shell
Within the scope of the 1cm up and down of middle layer.The corresponding central angle of fan-shaped curved surface of the fine mist spray head 3 is 100 °~180 °.It is described
Nozzle 3-1 is circle.Fine mist spray head 3 is by pipe network connector 3-2 connection pipe network, the water mists 3- that fine mist spray head ejects
3 be certain thickness covering of the fan water mists.
After the fine mist spray head 3 is protruded into from the center of opening 4 into battery modules shell 2, opening 4, which exists, does not block area
Domain.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of LiFePO4 energy-accumulating power station battery module structure protected with Water Mist Fire Extinguishing Technique, it is characterised in that:
Including battery modules shell (2), battery (1) setting is on the inside of battery modules shell (2), and battery (1) upper surface is apart from battery mould
The distance of assembly housing (2) top plate inner surface is more than or equal to 50cm, and battery (1) side surface is in battery modules shell (2) side plate
The distance on surface is more than or equal to 20cm;
It is provided with opening (4) on a side plate of battery modules shell (2), the top margin of opening (4) and battery modules shell (2)
Top plate inner surface height is consistent, and the bottom edge of opening (4) is consistent with battery (1) upper level or is higher than battery (1) upper surface height
Degree, being open at a distance from two vertical edges of two vertical edges and affiliated side plate of (4) is the 1/5~1/3 of the side plate width;
It is provided on other side plates of battery modules shell (2) mesh area (5), the bottom edge and battery (1) of mesh area (5)
Upper level is consistent or is higher than battery (1) upper level, and the top margin of mesh area (5) is pushed up lower than battery modules shell (2)
Two vertical edges of plate inner surface 15~20cm of height, mesh area (5) are consistent with two vertical edges of affiliated side plate, mesh area (5)
Percent opening be 20~30%.
2. the LiFePO4 energy-accumulating power station battery modules knot according to claim 1 protected with Water Mist Fire Extinguishing Technique
Structure, it is characterised in that: it is the 1/4 of the side plate width at a distance from two vertical edges of two vertical edges and affiliated side plate of the opening (4),
The percent opening of mesh area (5) is 25%.
3. the LiFePO4 energy-accumulating power station battery modules knot according to claim 1 protected with Water Mist Fire Extinguishing Technique
Structure, it is characterised in that: further include fine mist spray head (3), fine mist spray head (3) is interior from opening (4) to battery modules shell (2) to be stretched
Enter, the injection direction of fine mist spray head (3) is towards between battery (1) upper surface and battery modules shell (2) top plate inner surface
Region.
4. the LiFePO4 energy-accumulating power station battery modules knot according to claim 3 protected with Water Mist Fire Extinguishing Technique
Structure, it is characterised in that: the fine mist spray head (3) is flat fan structure, and arc direction is provided with one on fan-shaped curved surface
It arranges nozzle (3-1), all nozzle (3-1) injection directions are in a plane.
5. the LiFePO4 energy-accumulating power station battery modules knot according to claim 3 protected with Water Mist Fire Extinguishing Technique
Structure, it is characterised in that: the plane where all nozzle (3-1) injection directions is parallel to battery (1) upper surface, and the plane is in electricity
Within the scope of the 2cm up and down of pond (1) upper surface and battery modules shell (2) top plate inner surface middle layer.
6. the LiFePO4 energy-accumulating power station battery modules knot according to claim 3 protected with Water Mist Fire Extinguishing Technique
Structure, it is characterised in that: the nozzle (3-1) is circle.
7. the LiFePO4 energy-accumulating power station battery modules knot according to claim 3 protected with Water Mist Fire Extinguishing Technique
Structure, it is characterised in that: after fine mist spray head (3) is protruded into from the center of opening (4) into battery modules shell (2), opening (4) is deposited
In non-sealing region.
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Cited By (2)
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CN110507928A (en) * | 2019-08-16 | 2019-11-29 | 国网江苏省电力有限公司 | For the fine water mist fire-extinguishing system and extinguishing method of LiFePO4 energy-accumulating power station battery prefabricated cabin |
CN110507928B (en) * | 2019-08-16 | 2023-05-12 | 国网江苏省电力有限公司 | Water mist fire extinguishing system and fire extinguishing method for battery prefabricated cabin of lithium iron phosphate energy storage power station |
CN112090006A (en) * | 2020-11-10 | 2020-12-18 | 国网江苏省电力有限公司经济技术研究院 | Fire control system and method for prefabricated cabin |
CN112090006B (en) * | 2020-11-10 | 2021-02-09 | 国网江苏省电力有限公司经济技术研究院 | Fire control system and method for prefabricated cabin |
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