CN110270030A - A kind of energy-storage box change fire-fighting system - Google Patents

A kind of energy-storage box change fire-fighting system Download PDF

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Publication number
CN110270030A
CN110270030A CN201910585493.2A CN201910585493A CN110270030A CN 110270030 A CN110270030 A CN 110270030A CN 201910585493 A CN201910585493 A CN 201910585493A CN 110270030 A CN110270030 A CN 110270030A
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China
Prior art keywords
fire
cabin
fighting
energy
explosion
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Granted
Application number
CN201910585493.2A
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Chinese (zh)
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CN110270030B (en
Inventor
周君
许金亮
沈波
张文龙
赵法朋
徐爱华
梁传平
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Qingdao Tgood Electric Co Ltd
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Qingdao Tgood Electric Co Ltd
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Priority to CN201910585493.2A priority Critical patent/CN110270030B/en
Publication of CN110270030A publication Critical patent/CN110270030A/en
Application granted granted Critical
Publication of CN110270030B publication Critical patent/CN110270030B/en
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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention discloses a kind of energy-storage boxes to become fire-fighting system, including prefabricated cabin cabin, fire-fighting battery carrier is set in the prefabricated cabin cabin, standpipe is arranged in prefabricated cabin cabin bottom part down, prefabricated cabin cabin bottom is located at the anti-condensation isolating device that the side setting of fire-fighting battery carrier is separated with standpipe, corridor telescopic footboard device is set above the anti-condensation isolating device, explosion-proof decompression device is set at the top of the prefabricated cabin cabin, it is safe and reliable that energy-storage box disclosed in this invention becomes fire-fighting system, it is at low cost, it is economical and practical, water logging fire-fighting is applied to well in energy-storage box change, good safety guarantee is provided for energy-storage box change.

Description

A kind of energy-storage box change fire-fighting system
Technical field
The present invention relates to a kind of change of energy-storage box, in particular to a kind of energy-storage box becomes fire-fighting system.
Background technique
With the continuous development of new energy, energy storage device makes rapid progress, and the energy-storage box using battery as energy storage carrier becomes Occupancy volume in market increases year by year, since battery is that have big energy carrier, still is able to send out in the absence of oxygen Biochemical reaction discharges amount of heat, to cause fire or explosion.
Existing market mostly uses gas fire-fighting, such as heptafluoro-propane, 1230 gases etc. or high-pressure water mist fire fighting, but With the multiple re-ignition of fail battery, the continuous release of energy, gas or water mists fire-fighting can not reach a kind of and preferably disappear Anti- effect still cannot prevent the further sprawling of accident.Water logging fire-fighting is that one kind generally acknowledged at present best battery in the world's disappears Battery is directly put into water in temperature anomaly or Initial Stage of Fire stage, is completely soaked, avoids the further of accident by anti-means Deteriorate.But since case becomes the limitation of internal structure, cell water fire-fighting can not be applied in energy storage device very well.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of energy-storage boxes to become fire-fighting system, to reach change energy-storage box Water logging fire-fighting is applied in energy-storage box change well, plays the role of safe and reliable fire-fighting, reduce cost by the part-structure of change Purpose.
In order to achieve the above objectives, technical scheme is as follows:
A kind of energy-storage box change fire-fighting system, including prefabricated cabin cabin, the prefabricated cabin cabin is interior to be arranged fire-fighting battery carrier, in advance Standpipe is arranged in cabin bottom part down in cabin processed, and prefabricated cabin cabin bottom is located at side setting and the standpipe of fire-fighting battery carrier Corridor telescopic footboard device, the prefabricated cabin cabin is arranged in the anti-condensation isolating device separated, the anti-condensation isolating device top Explosion-proof decompression device is set at the top of body.
In above scheme, the fire-fighting battery carrier setting is two rows of, is uniformly distributed in two sides inside prefabricated cabin cabin, anti-condensation Isolating device and corridor telescopic footboard device are located between two rows of fire-fighting battery carriers.
In above scheme, battery inclination or horizontal positioned on the fire-fighting battery carrier, when whereabouts, can pass through anti-condensation isolation Device is fallen into standpipe, and the battery top is connect by locking device and catapult-launching gear with frame, battery bottom setting A plug connector and secondary plug connector is arranged in drum apparatus, battery bottom.
In above scheme, the anti-condensation isolating device includes the valve that two panels is oppositely arranged, the side of the valve with Prefabricated cabin cabin bottom is connected by spring hinge.
In above scheme, the corridor telescopic footboard device includes the pedal one and pedal two being hinged, the pedal One one end is articulated with prefabricated cabin cabin bottom, and idler wheel, the fire-fighting battery carrier bottom sides are arranged in one end of the pedal two Sliding rail is set, and the idler wheel can move on the slide rail;Electromagnetic lock, the pedal one are set on the inside of the hatch door of the prefabricated cabin cabin Top is provided with lock corresponding with electromagnetism lock position.
In above scheme, knob is respectively provided on the pedal one and pedal two.
In above scheme, one end of the pedal one is connected by shaft and motor or pneumatic shuttle or hydraulic device It connects.
In above scheme, the explosion-proof decompression device includes the explosion-proof channel being set at the top of prefabricated cabin cabin, described anti- Explosion-proof covering board is arranged in quick-fried channel roof, and the explosion-proof covering board side is articulated on the side wall in explosion-proof channel, explosion-proof covering board it is another Side is connect by retaining mechanism with the side wall in explosion-proof channel, and the retaining mechanism is under inside generation explosion time, huge impact force It can open, realize releasing pressure automatically.
In above scheme, water or fire-fighting liquid are filled in the standpipe.
It is had the following beneficial effects: through the above technical solutions, energy-storage box provided by the invention becomes fire-fighting system
1, it is provided a supporting role when fire-fighting battery carrier operates normally, after exception occurs in battery, fail battery can be discharged automatically, Guiding role is provided for battery landing;
2, explosion-proof decompression device can be washed open automatically in internal abnormality by internal pressure, realize pressure release;
3, corridor telescopic footboard device can be used mode manually or electrically and stretch out or retract, when retraction, by hatch door Electromagnetic lock locking, close hatch door after, can retract, provide the channel of landing for battery;
4, anti-condensation isolating device realizes the partition inside cabin with fire cistern, closes automatically under spring hinge effect It closes, prevents vapor from entering cabin and form condensation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described.
Fig. 1 is a kind of prefabricated cabin cabin front schematic view disclosed in the embodiment of the present invention;
Fig. 2 is prefabricated cabin cabin side schematic view disclosed in the embodiment of the present invention;
Fig. 3 is fire-fighting battery carrier side schematic view disclosed in the embodiment of the present invention;
Fig. 4 is fire-fighting battery carrier schematic rear view disclosed in the embodiment of the present invention;
Fig. 5 is anti-condensation isolating device structural schematic diagram disclosed in the embodiment of the present invention;
Fig. 6 is corridor telescopic footboard device structural schematic diagram disclosed in the embodiment of the present invention;
Fig. 7 is H enlarged schematic partial view in Fig. 6;
Fig. 8 is explosion-proof decompression device structural schematic diagram disclosed in the embodiment of the present invention.
In figure, 1, prefabricated cabin cabin;2, fire-fighting battery carrier;3, standpipe;4, anti-condensation isolating device;5, corridor is flexible Device with pedal;6, explosion-proof decompression device;7, battery;8, frame;9, locking device;10, catapult-launching gear;11, drum apparatus;12, Plug connector;13, secondary plug connector;14, valve;15, spring hinge;16, pedal one;17, pedal two;18, idler wheel;19, Electromagnetic lock;20, it latches;21, it shakes hands;22, shaft;23, motor or pneumatic shuttle or hydraulic device;24, explosion-proof channel; 25, explosion-proof covering board;26, retaining mechanism;27, ground;28, hatch door;29, hinge.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description.
A kind of energy-storage box as shown in Figure 1 becomes fire-fighting system, including prefabricated cabin cabin 1, and setting is two rows of in prefabricated cabin cabin 1 Fire-fighting battery carrier 2 is uniformly distributed in 1 inside two sides of prefabricated cabin cabin.Fire-fighting battery carrier 2 or 1 row or multiple rows of, when being more When row, anti-condensation isolating device 4 and corridor telescopic footboard device 5 are arranged between adjacent two rows of fire-fighting battery carriers 2.Work as fire-fighting When battery carrier 2 is 1 row, fire-fighting battery carrier 2 be can be set in 1 side wall of prefabricated cabin cabin or centre, anti-condensation isolating device 4 and be walked Corridor telescopic footboard device 5 is arranged between fire-fighting battery carrier 2 and prefabricated cabin cabin 1.
Standpipe 3 is set in the ground 27 of 1 bottom part down of prefabricated cabin cabin, fills water in standpipe 3.Prefabricated cabin cabin The centre that 1 bottom of body is located at two rows of fire-fighting battery carriers 2 is provided with the anti-condensation isolating device 4 separated with standpipe 3, anti-condensation Corridor telescopic footboard device 5 is set above isolating device 4, explosion-proof decompression device 6 is set at the top of prefabricated cabin cabin 1.
In the present embodiment, the inclination or horizontal positioned of battery 7 on fire-fighting battery carrier 2, when whereabouts, can be by anti-condensation isolation dress 4 are set to fall into standpipe 3.The structure of this fire-fighting battery carrier 2 described in a patent application before, and specific structure is shown in Patent 2019208858574.As shown in Figure 2, Figure 3 and Figure 4, fire-fighting battery carrier 2 includes frame 8, battery 7, locking device 9, bullet Injection device 10,11, plug connectors 12 of drum apparatus, secondary plug connector 13 form.Under normal operating condition, locking device 9 is logical Mechanical locking structure locking battery 7 is crossed, prevents battery 7 from sliding.After system detection to 7 temperature of battery is more than alarm temperature, it is System issues instruction, and locking device 9 unlocks, and battery 7 overcomes one/secondary under the spring-force driven dual of gravity and catapult-launching gear 10 Frictional force between plug connector glides along drum apparatus 11, and the landing process for the battery 7 that Fig. 2 is shown falls into the fire water of lower section In slot 3, store fire water in standpipe 3, realize the fire-fighting to battery 7, securely and reliably, prevent battery fire incident into The sprawling of one step.
The present embodiment provides a kind of anti-condensation isolating device of valve, valve closure and valve opening state as shown in Figure 5 A, dotted line are valve opening state B, and solid line is valve closed state.Anti-condensation isolating device 4 includes the work that two panels is oppositely arranged The side of door 14, valve 14 is connect with 1 bottom of prefabricated cabin cabin by spring hinge 15.Valve 14 is in bullet under normal operating condition The effect of spring hinge 15 is lower to be in closed state, and after battery 7 breaks down, the locking device 9 of fire-fighting battery carrier unclamps, battery 7 It slides, under 7 gravity of battery, overcomes 15 elastic force of spring hinge, into the water of standpipe 3, valve 14 restores automatically Closed state is adequately isolated standpipe 3 and cabin.In another embodiment, anti-condensation isolating device may be glass Equal friable materials, battery 7 can directly smash glass and enter in standpipe 3.
Shutdown folded state C, retracted position D and the horizontal opening shape of pedal 1 and pedal 2 17 as shown in FIG. 6 State E, prefabricated cabin cabin 1 is interior to be arranged 3 cabins, and a hatch door 28 is arranged in each cabin, and one corridor of setting is stretched in each cabin Contracting device with pedal 5.Corridor telescopic footboard device 5 includes the pedal 1 and pedal 2 17 being hinged, one end of pedal 1 It is articulated with 1 bottom of prefabricated cabin cabin, idler wheel 18 is arranged in one end of pedal 2 17, and sliding rail (figure is arranged in 2 bottom sides of fire-fighting battery carrier In do not show), idler wheel 18 can move on the slide rail;Electromagnetic lock 19 is set on the inside of the hatch door 28 of prefabricated cabin cabin 1, and pedal 1 pushes up Portion is provided with lock 20 corresponding with 19 position of electromagnetic lock.
It is respectively provided with knob 21 on pedal 1 and pedal 2 17, manual mode decentralization can be used and withdraws pedal.Or it adopts Electricity consumption flowing mode, as shown in fig. 7, for example passing through shaft 22 and motor or pneumatic shuttle or hydraulic in one end of pedal 1 Device 23 connects, and pushes pedal decentralization using motor or pneumatic shuttle or hydraulic device 23 or withdraws.
Explosion-proof covering board as shown in Figure 8 closes state F and pressure release state G, and explosion-proof decompression device includes being set to prefabricated cabin Explosion-proof covering board 25, liner fireproof heat insulating material on explosion-proof covering board 25 is arranged in the explosion-proof channel 24 at 1 top of cabin, explosion-proof channel roof Material, 25 side of explosion-proof covering board are articulated on the side wall in explosion-proof channel 24 by hinge 29, and the other side of explosion-proof covering board 25 passes through lock Tight mechanism 26 is connect with the side wall in explosion-proof channel 24, which occurs explosion time in inside, can be beaten under huge impact force It opens, realizes releasing pressure automatically.Common retaining mechanism can be locked for modes such as buckle or nylon bolts, worked normally When, it is in close state, when inside generation explosion time, can be opened under huge impact force.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (9)

1. a kind of energy-storage box becomes fire-fighting system, including prefabricated cabin cabin, which is characterized in that fire-fighting is arranged in the prefabricated cabin cabin Standpipe is arranged in battery carrier, prefabricated cabin cabin bottom part down, and prefabricated cabin cabin bottom is located at the side setting of fire-fighting battery carrier Corridor telescopic footboard device, institute is arranged in the anti-condensation isolating device separated with standpipe, the anti-condensation isolating device top It states and explosion-proof decompression device is set at the top of prefabricated cabin cabin.
2. a kind of energy-storage box according to claim 1 becomes fire-fighting system, which is characterized in that the fire-fighting battery carrier setting two Row, is uniformly distributed in two sides inside prefabricated cabin cabin, and anti-condensation isolating device and corridor telescopic footboard device are located at two rows of fire-fightings Between battery carrier.
3. a kind of energy-storage box according to claim 1 becomes fire-fighting system, which is characterized in that battery on the fire-fighting battery carrier Inclination is horizontal positioned, and when whereabouts can fall into standpipe by anti-condensation isolating device, and the battery top passes through locking Device and catapult-launching gear are connect with frame, and drum apparatus is arranged in battery bottom, and a plug connector and secondary-plug is arranged in battery bottom Fitting.
4. a kind of energy-storage box according to claim 1 becomes fire-fighting system, which is characterized in that the anti-condensation isolating device packet The valve that two panels is oppositely arranged is included, the side of the valve is connect with prefabricated cabin cabin bottom by spring hinge.
5. a kind of energy-storage box according to claim 1 becomes fire-fighting system, which is characterized in that the corridor telescopic footboard device Including the pedal one and pedal two being hinged, one end of the pedal one is articulated with prefabricated cabin cabin bottom, the pedal two One end idler wheel is set, sliding rail is arranged in the fire-fighting battery carrier bottom sides, and the idler wheel can move on the slide rail;It is described prefabricated Electromagnetic lock is set on the inside of the hatch door of cabin cabin, is provided with lock corresponding with electromagnetism lock position at the top of the pedal one.
6. a kind of energy-storage box according to claim 5 becomes fire-fighting system, which is characterized in that on the pedal one and pedal two It is respectively provided with knob.
7. a kind of energy-storage box according to claim 5 becomes fire-fighting system, which is characterized in that one end of the pedal one passes through Shaft is connect with motor or pneumatic shuttle or hydraulic device.
8. a kind of energy-storage box according to claim 1 becomes fire-fighting system, which is characterized in that the explosion-proof decompression device includes It is set to the explosion-proof channel at the top of prefabricated cabin cabin, explosion-proof covering board, the explosion-proof covering board side is arranged in the explosion-proof channel roof It is articulated on the side wall in explosion-proof channel, the other side of explosion-proof covering board is connect by retaining mechanism with the side wall in explosion-proof channel.
9. a kind of energy-storage box according to claim 1 becomes fire-fighting system, which is characterized in that fill water in the standpipe Or fire-fighting liquid.
CN201910585493.2A 2019-07-01 2019-07-01 Energy storage box transformer fire extinguishing system Active CN110270030B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910585493.2A CN110270030B (en) 2019-07-01 2019-07-01 Energy storage box transformer fire extinguishing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910585493.2A CN110270030B (en) 2019-07-01 2019-07-01 Energy storage box transformer fire extinguishing system

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CN110270030A true CN110270030A (en) 2019-09-24
CN110270030B CN110270030B (en) 2024-03-19

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112023304A (en) * 2020-11-09 2020-12-04 国网江苏省电力有限公司经济技术研究院 Energy storage power station fire-fighting system and control method thereof
CN112953022A (en) * 2020-09-14 2021-06-11 南京酷朗电子有限公司 Accident isolation system for energy storage power station
CN114552099A (en) * 2022-02-16 2022-05-27 中国科学院电工研究所 Safety system for energy storage battery container
CN114583372A (en) * 2022-02-28 2022-06-03 西安热工研究院有限公司 Passive fault sliding-out device of energy storage battery box

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE808840A (en) * 1972-12-26 1974-06-19 Instapak Corp SYSTEM FOR DEBITTING A POLYURETHANE OR SIMILAR SUBSTANCE
CN2856178Y (en) * 2005-12-16 2007-01-10 席建军 Folding safety antitheft manhole cover
CN106180153A (en) * 2016-08-31 2016-12-07 广东新生环保科技股份有限公司 A kind of lead-acid accumulator storage compartment
CN107359373A (en) * 2017-07-26 2017-11-17 烟台创为新能源科技有限公司 A kind of energy-accumulating power station for carrying early warning and fire-fighting system
CN206976521U (en) * 2017-07-26 2018-02-06 烟台创为新能源科技有限公司 A kind of energy-accumulating power station for carrying early warning and fire-fighting system
CN108175976A (en) * 2018-02-09 2018-06-19 杭州协能科技股份有限公司 Battery fire plant
CN207909930U (en) * 2017-11-06 2018-09-25 蔚来汽车有限公司 Battery pack storage device
CN109821166A (en) * 2019-01-15 2019-05-31 广东邦普循环科技有限公司 A kind of device and method of the retired power battery of safe storage
CN210813611U (en) * 2019-07-01 2020-06-23 青岛特锐德电气股份有限公司 Energy storage box becomes fire extinguishing system
KR20230112078A (en) * 2022-01-19 2023-07-26 주식회사 엘지에너지솔루션 Water injection unit and Energe storage system including the same
US20230293920A1 (en) * 2021-07-16 2023-09-21 Lg Energy Solution, Ltd. Battery pack frame, battery rack and energy storage system comprising the same

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE808840A (en) * 1972-12-26 1974-06-19 Instapak Corp SYSTEM FOR DEBITTING A POLYURETHANE OR SIMILAR SUBSTANCE
CN2856178Y (en) * 2005-12-16 2007-01-10 席建军 Folding safety antitheft manhole cover
CN106180153A (en) * 2016-08-31 2016-12-07 广东新生环保科技股份有限公司 A kind of lead-acid accumulator storage compartment
CN107359373A (en) * 2017-07-26 2017-11-17 烟台创为新能源科技有限公司 A kind of energy-accumulating power station for carrying early warning and fire-fighting system
CN206976521U (en) * 2017-07-26 2018-02-06 烟台创为新能源科技有限公司 A kind of energy-accumulating power station for carrying early warning and fire-fighting system
CN207909930U (en) * 2017-11-06 2018-09-25 蔚来汽车有限公司 Battery pack storage device
CN108175976A (en) * 2018-02-09 2018-06-19 杭州协能科技股份有限公司 Battery fire plant
CN109821166A (en) * 2019-01-15 2019-05-31 广东邦普循环科技有限公司 A kind of device and method of the retired power battery of safe storage
CN210813611U (en) * 2019-07-01 2020-06-23 青岛特锐德电气股份有限公司 Energy storage box becomes fire extinguishing system
US20230293920A1 (en) * 2021-07-16 2023-09-21 Lg Energy Solution, Ltd. Battery pack frame, battery rack and energy storage system comprising the same
KR20230112078A (en) * 2022-01-19 2023-07-26 주식회사 엘지에너지솔루션 Water injection unit and Energe storage system including the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112953022A (en) * 2020-09-14 2021-06-11 南京酷朗电子有限公司 Accident isolation system for energy storage power station
CN112023304A (en) * 2020-11-09 2020-12-04 国网江苏省电力有限公司经济技术研究院 Energy storage power station fire-fighting system and control method thereof
CN114552099A (en) * 2022-02-16 2022-05-27 中国科学院电工研究所 Safety system for energy storage battery container
CN114552099B (en) * 2022-02-16 2024-04-09 中国科学院电工研究所 Safety system for energy storage battery container
CN114583372A (en) * 2022-02-28 2022-06-03 西安热工研究院有限公司 Passive fault sliding-out device of energy storage battery box

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