CN115068863B - Container type lithium battery energy storage power station fireproof system - Google Patents

Container type lithium battery energy storage power station fireproof system Download PDF

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Publication number
CN115068863B
CN115068863B CN202210865395.6A CN202210865395A CN115068863B CN 115068863 B CN115068863 B CN 115068863B CN 202210865395 A CN202210865395 A CN 202210865395A CN 115068863 B CN115068863 B CN 115068863B
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frame
end frame
fire
left end
energy storage
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CN115068863A (en
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赵利宏
刘诗瑶
刘俊宇
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Jianyan Fire Prevention Technology Co ltd
China Academy of Building Research CABR
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Jianyan Fire Prevention Technology Co ltd
China Academy of Building Research CABR
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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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6572—Peltier elements or thermoelectric devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention discloses a container type lithium battery energy storage power station fire protection system, and particularly relates to the technical field of lithium battery energy storage power station safety. The invention monitors the temperature of the single-cell battery pack in each electricity storage box in real time through the BMS system, controls the corresponding fire extinguishing components to operate under different temperature thresholds, achieves the aim of multi-stage early warning and fire extinguishing, has strong pertinence, and does not produce pollution when using various fire extinguishing agents.

Description

Container type lithium battery energy storage power station fireproof system
Technical Field
The invention relates to the technical field of safety of lithium battery energy storage power stations, in particular to a fireproof system of a container type lithium battery energy storage power station.
Background
Energy storage is a key supporting technology for energy structure adjustment and power system transformation under new energy wave tides. The lithium ion battery as a new energy battery is more environment-friendly and has more excellent performance, and is widely applied to energy storage power stations. The lithium battery container energy storage solution is widely applied to new energy power generation access and consumption, distributed power generation and micro-grid energy storage are achieved, and reliable power supply and electric energy quality are provided for frequency modulation and voltage regulation of a power system and upgrading and transformation of a power distribution system. However, during the storage process of the lithium ion battery, thermal runaway may occur due to heat release and accumulation of the chemical reaction of the lithium ion battery or the influence of an external heat source, which seriously affects the safety performance of the energy storage power station.
The prior art mainly realizes early warning and fire control of an energy storage power station through the following modes: the top of the energy storage power station box body is provided with a plurality of fire detectors (temperature sensing, smoke sensing or smoke temperature integration type) of different types to monitor the operation condition of the energy storage power station, and a gas fire extinguishing device and a fire extinguishing agent delivery pipeline are installed, so that when a fire occurs, inert gas is used for extinguishing the fire.
In the prior art, generally monitor the whole of energy storage cabinet, the degree of accuracy is not high enough, when battery cell takes place the thermal runaway, probably can not detect or detect the delay, when detecting the condition of a fire, spray extinguishing agent in whole energy storage station space, can not put out a fire to the battery cabinet that breaks out a fire, the fire control fire extinguishing effect to the battery is not too obvious, can not be fast, effectively, the fire source is put out safely, in addition, because battery thermal runaway is chain reaction, the battery is fired easily and is reburning, traditional means of putting out a fire is because the extinguishing agent dosage is limited, can only temporarily restrain the battery thermal runaway and spread, suppress the conflagration for a short time, in case the battery reburning, can cause huge danger and loss of property.
The above information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a container type lithium battery energy storage power station fire protection system, which monitors the temperature of the single battery cell group in each energy storage box in real time through a BMS system, and controls the corresponding fire extinguishing components to operate under different temperature thresholds, so as to achieve the purpose of multi-stage early warning and fire extinguishing, and solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a container formula lithium cell energy storage power station fire protection system, includes lithium cell energy storage power station main part, lithium cell energy storage power station main part comprises left end frame, right-hand member frame and a plurality of middle frames that are located between left end frame and the right-hand member frame, all be provided with locking Assembly between the middle frame that left end frame and right-hand member frame and ortho-position set up and between two middle frames of adjacent setting, left end frame inner chamber front end is fixed to be equipped with and converges cabinet and the fixed distilled water device that is equipped with in rear end, middle frame inner chamber front end and rear end are all fixed to be equipped with the electricity storage box, right end frame inner chamber front end is fixed to be equipped with the air conditioner and the fixed BMS system that is equipped with in rear end, left end frame and right-hand member inner chamber are close to the position department at middle part and all install the combustible gas detector, the position department that middle frame inner chamber is close to place position electricity storage box installs heptafluoropropane, the outer facade top that left end frame is close to converge cabinet one end and the outer facade top that middle frame is close to the electricity storage box all fixed the top that is fixed to be run through and is equipped with and leaks and explodes the board, explodes the outside center position department fixed audible-visual alarm that installs of explosion board, explodes that the outer facade of the overflow hole that the overflow box corresponds the top of the inner chamber that the overflow box corresponds the inner chamber that the inner chamber of meeting of the electricity storage box and the inner chamber that corresponds.
The beneficial effect of adopting the above further scheme is: the temperature of the single-cell battery pack in each electricity storage box can be monitored in real time through the BMS system, and the corresponding fire extinguishing parts are controlled to operate under different temperature thresholds, so that the aim of multi-stage early warning fire extinguishing is fulfilled.
In a preferred embodiment, the locking assembly includes a flange frame plate and locking holes horizontally penetrating the flange frame plate, the flange frame plate is fixedly sleeved on the left end frame and the right end frame near the outer peripheral surface of one end of the middle frame and the outer peripheral surface of the middle frame, the flange frame plate on the left end frame faces the inner edge position of one side of the middle frame and the flange frame plate on the middle frame far away from one end of the left end frame faces the inner edge position of one side of the right end frame, the flange frame plate on the right end frame faces one side of the middle frame and the flange frame plate on the middle frame far away from one end of the right end frame, and inserting frame grooves are respectively formed in the positions corresponding to the inserting frames on one side of the left end frame and the middle frame, the inserting frames are movably inserted in the inserting frame grooves of the corresponding positions, and the flange frame plates on the middle frames and the adjacent middle frames are fixedly mounted by locking bolts.
The beneficial effect of adopting the further scheme is that: can realize carrying out quick assembly disassembly, easy operation is convenient to lithium cell energy storage power station main part.
In a preferred embodiment, the position of the left end frame outer vertical surface corresponding to the collecting cabinet and the position of the middle frame outer vertical surface corresponding to the electric storage box are both provided with a double-opening door in a hinged mode, and the position of the right end frame outer vertical surface corresponding to the air conditioner and the BMS system is both provided with a single-opening door in a hinged mode.
The beneficial effect of adopting the further scheme is that: the maintenance and management of the current collection cabinet, the electricity storage box, the air conditioner and the BMS system at the position can be conveniently carried out.
In a preferred embodiment, a plurality of battery packs are arranged in the power storage box, the battery packs are sequentially stacked, each battery pack comprises a single battery cell, and fire detection pipes are arranged between the outer surfaces of the plurality of battery packs stacked in sequence layer by layer, and the fire detection pipes are arranged in a zigzag manner between each layer of the plurality of battery packs.
The beneficial effect of adopting the above further scheme is: the targeted fire extinguishing of the target single-cell battery pack can be realized, and the fire extinguishing effect of the target single-cell battery pack is improved.
In a preferred embodiment, the outer surface of each battery pack is provided with a hole.
The beneficial effect of adopting the further scheme is that: and a special fire extinguishing channel can be formed between the distilled water device and each battery pack.
In a preferred embodiment, the distilled water device is including distilled water tank and the fire pump of fixed mounting in distilled water tank inner chamber bottom, two water delivery port departments of fire pump all communicate and are equipped with the water delivery and are responsible for, and one of them water delivery is responsible for the one end of keeping away from the fire pump and is installed the end that absorbs water, and another water delivery is responsible for the one end of keeping away from the fire pump and has two water delivery branch pipes through three way connection, all communicates on two water delivery branch pipes and is equipped with a plurality of horizontal main pipes, every horizontal main pipe is close to the one end of place water delivery branch pipe and is close to the water delivery branch pipe tip of converging the cabinet and all installs the signal valve, horizontal main pipe corresponds the end of position electricity storage box and is close to the water delivery branch pipe end of converging the cabinet and all is connected with the water supply branch pipe group, and the water supply branch pipe group that corresponds the electricity storage box comprises the water supply branch pipe network that a plurality of intercommunication set up each other, every the shower nozzle is all installed to entrance to the hole inside, and the water supply branch pipe that corresponds shower nozzle position department on the pipe network is linked together with the shower nozzle position shower nozzle.
The beneficial effect of adopting the further scheme is that: an independent fire extinguishing area can be formed for each power storage box, so that the normal operation of other power storage boxes can not be interfered when the target power storage box is subjected to fire extinguishing work.
In a preferred embodiment, a U-shaped fire partition is fixed outside the junction box and outside each of the power storage boxes.
The beneficial effect of adopting the further scheme is that: a plurality of independent isolated chambers may be formed to block rapid spread of fire in the target area.
In a preferred embodiment, the top end faces of the left end frame, the right end frame and the plurality of middle frames are respectively provided with two lifting lug assemblies which are axially symmetrically arranged about the horizontal center line of the lithium battery energy storage power station main body, each lifting lug assembly comprises a trapezoidal block fixedly connected with the top end faces of the left end frame, the right end frame and the middle frames, and a circular ring is fixedly embedded at the top of each trapezoidal block.
The beneficial effect of adopting the further scheme is that: the left end frame, the right end frame and the middle frame are conveniently hoisted.
In a preferred embodiment, the four corners of the bottom end surfaces of the left end frame, the right end frame and the plurality of middle frames are fixedly provided with buried stilts, and the position of the peripheral surface of each buried stilt, which is close to the bottom end, is fixedly sleeved with a limiting ring plate.
The beneficial effect of adopting the further scheme is that: the local buried processing can be carried out to buried stilts to improve the stability of this lithium cell energy storage power station in the use.
In a preferred embodiment, the double-door one end top middle part that the position was kept away from to fire partition wall is provided with accuse temperature protection component, accuse temperature protection component is including seting up the logical groove on fire partition wall top and being located the perforation that leads to groove top middle part, and fire partition wall top face middle part is offered and is the T type groove of vertical setting, T type tank bottom is linked together with leading to the groove, and T type tank bottom extends to the inner chamber bottom face below that leads to the groove, lead to the fixed dress of one end that T type groove was kept away from to the groove inner chamber and be equipped with the semiconductor refrigeration piece, lie in the T type inslot portion sliding connection who leads to the groove top have T type piece, the inboard top middle part of fire partition wall is provided with the shrouding that is integral type structure with T type piece, the fixed L template that is equipped with in the middle part of fire partition wall outside top, T type piece has seted up the recess towards one side middle part of L template, the inboard fire partition wall one end of keeping away from of L template corresponds fenestrate position department fixed mounting has the cylinder, the output activity of cylinder is worn to locate inside the perforation and extends to the recess inside, and the output fixed ring that the output of cylinder is connected with the groove, the groove has all seted up the inclined guide slot about the recess, the recess inner chamber left and is provided with inclined guide arm between two guide arm, the inclined guide arm that the both ends of the inclined guide arm is located.
The beneficial effect of adopting the further scheme is that: both can utilize the semiconductor refrigeration piece to generate heat to the group battery in the electricity storage box and carry out supplementary regulation and control, can protect the semiconductor refrigeration piece to utilizing the distilled water in-process of putting out a fire again.
The invention has the technical effects and advantages that:
1. according to the invention, each fire-fighting and fire-extinguishing component and each monitoring component are utilized to construct a multi-stage early warning and fire-extinguishing system in the main body of the lithium battery energy storage power station, the multi-stage early warning and fire-extinguishing system is linked with the BMS, the temperature of the single-cell battery pack in each power storage box is monitored in real time through the BMS, and the corresponding fire-extinguishing components are controlled to operate under different temperature thresholds, so that the aim of multi-stage early warning and fire extinguishing is fulfilled, the pertinence is strong, no pollution is generated when each fire extinguishing agent is used, and the environment is protected;
2. according to the invention, the main body of the lithium battery energy storage power station adopts a split structure design, so that the lithium battery energy storage power station can be assembled according to actual use requirements, and pre-limiting is carried out in a manner that the inserting frame is inserted into the inserting frame groove, so that the locking holes on the butted flange frame bodies are accurately aligned, and the lithium battery energy storage power station is simple and convenient to assemble and disassemble, has strong practicability and is convenient to transport;
3. the heating of the battery pack in the power storage box can be adjusted and controlled in an auxiliary mode through the semiconductor refrigerating sheet, and when the distilled water is used for fire extinguishing, the sealing plate is driven to block the through groove through the telescopic change of the air cylinder, so that the distilled water is prevented from contacting the semiconductor refrigerating sheet to damage the semiconductor refrigerating sheet;
4. the lifting lug assemblies are arranged on the tops of the left end frame, the middle frame and the right end frame, so that the single components forming the main body of the lithium battery energy storage power station can be hoisted and butted, and the construction is convenient;
5. according to the invention, the underground socle is arranged on the bottom end face of the main body of the lithium battery energy storage power station, and local underground treatment is carried out on the underground socle in the actual use process, so that the stability of the lithium battery energy storage power station in the use process is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a sectional plan view of the overall structure of the present invention.
FIG. 3 is a partial side cross-sectional view of the present invention.
Fig. 4 is a sectional top view of the power storage box of the present invention.
FIG. 5 is a schematic view of the left end frame structure of the present invention.
Fig. 6 is a schematic diagram of a structure of the middle frame in the right view direction according to the present invention.
Fig. 7 is a left-view structural diagram of the middle frame of the present invention.
Fig. 8 is a schematic diagram of a right end frame structure according to the present invention.
Fig. 9 is an enlarged view of a portion a of fig. 2 according to the present invention.
Figure 10 is a schematic view of the shackle assembly of the present invention.
FIG. 11 is an assembly view of the fire wall and the temperature-controlled protective assembly of the present invention.
Fig. 12 is an enlarged view of portion B of fig. 11 according to the present invention.
Fig. 13 is a schematic view of the structure of the fire barrier of the present invention.
Fig. 14 is a working principle diagram of the semiconductor chilling plate of the invention.
The reference signs are: 1 lithium battery energy storage power station main body, 101 left end frame, 102 middle frame, 103 right end frame, 104 double doors, 105 single door, 2 electricity storage box, 21 battery pack, 22 fire detection pipe, 23 hole, 3 collecting cabinet, 4 distilled water device, 41 fire pump, 42 water delivery main pipe, 43 water absorption end, 44 water delivery branch pipe, 45 horizontal trunk pipe, 46 water supply branch pipe group, 47 signal valve, 5 air conditioner, 6 BMS system, 7 locking component, 71 flange frame plate, 72 locking hole, 73 inserting frame, 74 inserting frame groove, 8 lifting lug component, 81 ladder-shaped block, 82 ring, 9 fire partition wall, 10 explosion venting plate, 11 acousto-optic alarm, 12 overflow port, 13 temperature-sensing detector, 14 smoke-sensing detector, 15 combustible gas detector, 16 heptafluoropropane gas cylinder, 17 ground embedded leg column, 18 limiting ring plate, 19 temperature control ring component, 191 through groove, 192T-shaped groove, 193 perforation, 194 semiconductor refrigeration sheet, 195T-shaped block, 196 closing plate, 197 cylinder groove, 198L 1910, 199, 1911 inclined guide rod, 1912 guide rod.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
Example 1
Referring to the attached drawings 1-4 of the specification, the container type lithium battery energy storage power station fire protection system comprises a lithium battery energy storage power station main body 1, wherein the lithium battery energy storage power station main body 1 is composed of a left end frame 101, a right end frame 103 and a plurality of middle frames 102 located between the left end frame 101 and the right end frame 103, a confluence cabinet 3 is fixedly arranged at the front end of an inner cavity of the left end frame 101, a distilled water device 4 is fixedly arranged at the rear end of the inner cavity of the left end frame 101, an electricity storage box 2 is fixedly arranged at the front end and the rear end of the inner cavity of the middle frame 102, an air conditioner 5 is fixedly arranged at the front end of the inner cavity of the right end frame 103, a BMS system 6 is fixedly arranged at the rear end of the inner cavity of the left end frame 101 and the inner cavity of the right end frame 103, combustible gas detectors 15 are respectively arranged at positions close to the middle parts, a heptafluoropropane gas cylinder 16 is arranged at a position close to the electricity storage box 2 of the inner cavity of the middle frame 102, explosion venting plates 10 are fixedly arranged at the top of an outer vertical face of one end of the confluence cabinet 3, an outer face of the middle frame 102 close to the electricity storage box 2, an explosion venting plate 11 is arranged at a position, a position corresponding to the top of the inner cavity of the middle frame 102, a position of the inner cavity of the explosion venting plate 10, and a position of the inner cavity of the middle frame 102 are respectively, and a temperature sensing detector 14, and a position of the inner cavity of the middle frame 102 are respectively, and a smoke detector 14 are respectively arranged at a corresponding to the inner cavity of the electricity storage box 2, and a corresponding to the explosion venting plate 10.
Further, a plurality of group batteries 21 are arranged inside the electricity storage box 2, and the group batteries 21 are stacked in sequence, each group battery 21 is inside to include a single electric core, a fire detection pipe 22 is laid between the outer surfaces of the group batteries 21 stacked in sequence, the fire detection pipe 22 is arranged in a zigzag manner between each layer of the group batteries 21, and a hole 23 is formed in the outer surface of each group battery 21.
Further, the distilled water device 4 comprises a distilled water tank and a fire pump 41 fixedly installed at the bottom of the inner cavity of the distilled water tank, two water delivery ports of the fire pump 41 are respectively communicated with a main water delivery pipe 42, one end of one main water delivery pipe 42 far away from the fire pump 41 is provided with a water absorption end 43, one end of the other main water delivery pipe 42 far away from the fire pump 41 is connected with two branch water delivery pipes 44 through a tee joint, the two branch water delivery pipes 44 are respectively communicated with a plurality of trunk pipes 45, one end of each trunk pipe 45 close to the corresponding branch water delivery pipe 44 and the end of the branch water delivery pipe 44 close to the junction cabinet 3 are respectively provided with a signal valve 47, the trunk pipes 45 are respectively connected with a branch water supply pipe group 46 corresponding to the tail end of the electric storage tank 2 and the tail end of the branch water delivery pipe 44 close to the junction cabinet 3, the branch water supply pipe group 46 corresponding to the electric storage tank 2 is composed of a plurality of branch water supply pipes which are mutually communicated, a spray nozzle is installed in each hole 23, and the branch water supply pipe corresponding to the spray nozzle at the position on the pipe network is communicated with the spray nozzle.
It should be noted that (1) one end of the left end frame 101 opposite to the right end frame 103 is open, and two ends of the middle frame 102 are through, so that the inside of the assembled lithium battery energy storage power station main body 1 is through, which is convenient for subsequent monitoring and fire safety protection; (2) the fire-detecting pipe 22 is connected with a perfluorohexanicopper fire extinguishing agent container; (3) The spray head adopts an open type spray head, so that the distilled water can be sprayed after the signal valve 47 on the water supply branch pipe corresponding to the transverse main pipe 45 is started; (4) The distilled water tank is connected with the external distilled water supply container through a connecting pipe, and the level change of the distilled water in the distilled water tank can be monitored by utilizing a commercially available liquid level sensor in the prior art; (5) The lengths of the plurality of transverse main pipes 45 communicated with the same water conveying branch pipe 44 are different, one end of each transverse main pipe 45, which is far away from the signal valve 47, extends to the top of one of the electricity storage boxes 2, and meanwhile, each transverse main pipe 45 is detachably connected with the water conveying branch pipe 44 at the position; (6) The end of the water suction end 43 far away from the fire pump 41 is always positioned below the liquid level of the distilled water.
Wherein, after each part assembly that will constitute lithium cell energy storage power station main part 1 is accomplished, utilize its inside distilled water device 4, audible-visual annunciator 11, temperature-sensing detector 13 (being the temperature sensor who markets in the prior art), smoke detector 14 (being the smoke sensor who markets in the prior art), combustible gas detector 15 (being the compound sensor who includes but not limited to hydrogen sensor, carbon monoxide sensor, VOC sensor etc. that markets in the prior art promptly), heptafluoropropane gas cylinder 16 and fire detection pipe 22 constitute a multistage early warning fire extinguishing systems in lithium cell energy storage power station main part 1 inside, and link this multistage early warning fire extinguishing systems and BMS system 6, and through the temperature of the single electric core battery pack 21 in every power storage box 2 of BMS system 6 real time monitoring, and control corresponding fire extinguishing components and operate under different temperature threshold values, reach the mesh of multistage early warning fire extinguishing, concrete process is:
when the BMS system 6 displays that the internal temperature of the single cell rises to be higher than 80 ℃, the lithium battery energy storage power station is automatically powered off, and simultaneously, the first-stage fire extinguishing system is started, namely, the fire detecting tube 22 corresponding to the interior of the power storage box 2 releases the perfluorohexanicocopper fire extinguishing agent;
after the first-stage fire extinguishing system is started, when the BMS system 6 displays that the internal temperature of the single cell rises to be higher than 120 ℃, the second-stage fire extinguishing system is started, namely, the heptafluoropropane gas bottle 16 corresponding to the power storage box 2 is protected to be started;
after the second-stage fire extinguishing system is started, when the BMS system 6 displays that the internal temperature of the single cell is higher than 220-230 ℃, and meanwhile, the smoke detector 14 or the temperature-sensitive detector 13 responds, the third-stage fire extinguishing system is started, namely, the fire pump 41 is started, the signal valve 47 on the trunk pipe 45 corresponding to the top of the power storage box 2 is started, distilled water sequentially passes through the main water pipe 42, the branch water pipes 44, the trunk pipe 45 corresponding to the top of the power storage box 2 and the branch water pipes on the pipe network, and is sprayed into the battery pack 21 corresponding to the power storage box 2 from the spray heads to directly submerge for fire extinguishing, and redundant distilled water flows out from the overflow port 12.
Above-mentioned fire extinguishing process, no matter which one-level fire extinguishing systems starts, audible-visual annunciator 11 all can start and send out the police dispatch newspaper to reach the purpose that multistage early warning was put out a fire, with strong points, and the use of each fire extinguishing agent can not produce the pollution, green, and meanwhile, the start fire extinguishing systems temperature of above-mentioned in-process can be adjusted according to actual conditions.
In this embodiment, 3 outsides of cabinet that converges and 2 outsides of every electricity storage box all fix and be equipped with the fire compartment wall 9 that is the U type setting, wherein, lie in the homonymy and be the setting of laminating of activity between two fire compartment wall 9 of adjacent setting, and the fire compartment wall 9 fire endurance who adopts is 2.0h, can utilize U type fire compartment wall to form a plurality of independent isolation chambeies to block that the intensity of a fire of target area spreads fast.
Example 2
Referring to the attached drawings 1-2 and 5-9 in the specification, the container type lithium battery energy storage power station fire protection system of the embodiment of the invention comprises a lithium battery energy storage power station main body 1, wherein the lithium battery energy storage power station main body 1 is composed of a left end frame 101, a right end frame 103 and a plurality of middle frames 102 positioned between the left end frame 101 and the right end frame 103, locking assemblies 7 are respectively arranged between the left end frame 101 and the right end frame 103 and the middle frames 102 arranged at adjacent positions and between two adjacent middle frames 102, each locking assembly 7 comprises a flange frame plate 71 and a locking hole 72 horizontally penetrating the flange frame plate 71, the flange frame plate 71 is fixedly sleeved on the outer peripheral surfaces of one ends of the left end frame 101 and the right end frame 103 close to the middle frames 102 and two ends of the outer peripheral surface of the middle frames 102, the inner edge position of the flange frame plate 71 on the left end frame 101 facing the middle frame 102 and the inner edge position of the flange frame plate 71 on the middle frame 102 far away from the left end frame 101 facing the right end frame 103 are both fixedly provided with inserting frames 73, the positions of the flange frame plate 71 on the right end frame 103 facing the middle frame 102 and the flange frame plate 71 on the middle frame 102 far away from the right end frame 103 facing the left end frame 101 are both provided with inserting frame grooves 74, the inserting frames 73 are movably inserted into the inserting frame grooves 74 in the corresponding positions, and the flange frame plates 71 on the middle frames 102 arranged adjacently to the left end frame 101 and the flange frame plates 71 on the two adjacent middle frames 102 are both fixedly mounted through locking bolts.
Furthermore, the position of the outer vertical surface of the left end frame 101 corresponding to the collecting cabinet 3 and the position of the outer vertical surface of the middle frame 102 corresponding to the electric storage box 2 are both hinged with a double-opening door 104, and the position of the outer vertical surface of the right end frame 103 corresponding to the air conditioner 5 and the BMS system 6 is both hinged with a single-opening door 105.
It should be noted that, in order to improve the sealing performance of the joints of the components of the lithium battery energy storage power station main body 1, a sealing rubber gasket may be additionally arranged between the insertion surfaces of the insertion frame 73 and the insertion frame groove 74, wherein when the components of the lithium battery energy storage power station main body 1 are assembled, the left end frame 101, the right end frame 103 and the plurality of middle frames 102 are firstly selected according to the actual use requirements and transported to the construction position, then the insertion frame 73 on the left end frame 101 is inserted into the insertion frame groove 74 arranged on the middle frame 102 in the position adjacent to the left end frame 101, and similarly, two adjacent middle frames 102 are assembled, and the right end frame 103 is assembled with the middle frame 102 in the position adjacent thereto, carry out spacing in advance with the realization to being two flange deckle boards 71 that the butt joint set up, and let and be the accurate counterpoint of locking hole 72 on two flange deckle boards 71 that the butt joint set up, carry out fixed mounting through the locking bolt afterwards, thereby realize carrying out quick assembly disassembly to lithium cell energy storage power station main part 1, and is simple in operation convenient, meanwhile, because the position department that corresponds collection cabinet 3 on the outer facade of left end frame 101 and the position department that corresponds storage box 2 on the outer facade of middle frame 102 all articulate and install two divisions of doors 104, the position department that corresponds air conditioner 5 and BMS system 6 on the outer facade of right end frame 103 all articulates and installs single division of door 105, can make things convenient for the staff to the collection cabinet 3 of position, storage box 2, air conditioner 5 and BMS system 6 maintain the management.
Example 3
Referring to the attached drawings 1-2 and 10 in the specification, in the container type lithium battery energy storage power station fire protection system according to the embodiment of the invention, the top end faces of the left end frame 101, the right end frame 103 and the plurality of middle frames 102 are respectively provided with two lifting lug assemblies 8 which are axially symmetrically arranged about the horizontal center line of the lithium battery energy storage power station main body 1, each lifting lug assembly 8 comprises a trapezoidal block 81 fixedly connected with the top end faces of the left end frame 101, the right end frame 103 and the middle frames 102, and a circular ring 82 is fixedly embedded in the top of each trapezoidal block 81.
The wider bottom end face of the trapezoidal block 81 is fixedly connected with the top end faces of the left end frame 101, the right end frame 103 and the middle frame 102 at the positions, so that the contact area between the wider bottom end face of the trapezoidal block 81 and the top end faces of the left end frame 101, the right end frame 103 and the middle frame 102 at the positions is increased, the stability of connection between the lifting lug assembly 8 and the top end faces of the left end frame 101, the right end frame 103 and the middle frame 102 at the positions can be improved, and the circular ring 82 is convenient to penetrate through ropes to hoist the left end frame 101, the right end frame 103 and the middle frame 102.
Example 4
Referring to the attached drawing 1 in the specification, in the container type lithium battery energy storage power station fire protection system according to the embodiment of the invention, the four corners of the bottom end surfaces of the left end frame 101, the right end frame 103 and the plurality of middle frames 102 are fixedly provided with the underground socle 17, and the position of the outer peripheral surface of each underground socle 17 close to the bottom end is fixedly sleeved with the limiting ring plate 18.
It should be noted that the length of the part of the underground leg 17 above the upper end face of the limiting ring plate 18 is greater than the distance between the outer bottom end face of the flange frame plate 71 and the bottom end face of the main body 1 of the lithium battery energy storage power station at the position, wherein after the container type lithium battery energy storage power station is assembled, the underground leg 17 (i.e. the part below the bottom end face of the limiting ring plate 18) can be locally buried, so as to improve the stability of the lithium battery energy storage power station 1 in the using process.
Example 5
Referring to the attached drawings 2 and 11-14 in the specification, in the container type lithium battery energy storage power station fire protection system according to an embodiment of the invention, a temperature control protection component 19 is arranged in the middle of the top of one end of a double door 104 far away from the position of a fire partition wall 9, the temperature control protection component 19 comprises a through groove 191 formed in the top of the fire partition wall 9 and a through hole 193 located in the middle of the top of the through groove 191, a vertically arranged T-shaped groove 192 is formed in the middle of the top end face of the fire partition wall 9, the bottom end of the T-shaped groove 192 is communicated with the through groove 191, the bottom end of the T-shaped groove 192 extends to the lower portion of the bottom end face of an inner cavity of the through groove 191, a semiconductor refrigeration piece 194 is fixedly embedded in one end of the inner cavity of the through groove 191 far away from the T-shaped groove 192, and a T-shaped block 195 is slidably connected in the T-shaped groove 192 above the through groove 191, a sealing plate 196 which is of an integrated structure with a T-shaped block 195 is arranged in the middle of the top of the inner side of the fire partition wall 9, an L-shaped plate 198 is fixedly arranged in the middle of the top of the outer side of the fire partition wall 9, a groove 197 is formed in the middle of one side, facing the L-shaped plate 198, of the T-shaped block 195, an air cylinder 199 is fixedly arranged at a position, corresponding to the perforation 193, of the inner side of the L-shaped plate 198, the output end of the air cylinder 199 movably penetrates through the perforation 193 and extends into the groove 197, a lantern ring 1910 is fixedly connected to the output end of the air cylinder 199, inclined guide grooves 1911 are formed in the left side and the right side of the inner cavity of the groove 197, a guide rod 1912 is arranged between the two inclined guide grooves 1911, two ends of the guide rod 1912 are respectively connected to the inside of the inclined guide grooves 1911 in corresponding positions in a sliding mode, and the lantern ring 1910 is fixedly arranged in the middle of the outer peripheral face of the guide rod 1912.
The semiconductor cooling plate 194 is formed by coupling an N-type (Bi 2Te3 — Bi2Se 3) semiconductor material and a P-type (Bi 2Te3 — Sb2Te 3) semiconductor material to form a galvanic couple, and can generate energy transfer after a direct current is supplied, wherein the current flows from the N-type element to the joint of the P-type element to absorb heat to form a cold end, and flows from the P-type element to the joint of the N-type element to release heat to form a hot end; (2) The specification of the sealing plate 196 is larger than that of the through groove 191, the vertical height of the T-shaped block 195 is larger than that of the through groove 191 and smaller than that of the sealing plate 196, so that the through groove 191 can be completely blocked, and the T-shaped block 195 is prevented from sliding out of the through groove 191; (3) The fixed cladding of one side of shrouding 196 towards T type piece 195 has the silica gel cushion, and the one side that the shrouding 196 was kept away from to the silica gel cushion is interference fit setting with fire bulkhead 9 internal surface, can effectively prevent to put out a fire with distilled water and semiconductor refrigeration piece 194 contact and damage semiconductor refrigeration piece 194.
During the operation of the container type lithium battery energy storage power station, as the battery pack 21 in the power storage box 2 continuously heats, at this time, the semiconductor refrigeration sheets 194 on each fire partition wall 9 can be used to cooperate with the air conditioner 5 to perform auxiliary control on the heating condition of the battery pack 21 in the power storage box 2, once the heating value of the battery pack 21 reaches the standard for starting the three-stage fire extinguishing system, the air cylinder 199 can be started to operate when the distilled water device 4 is started to operate, so that the collar is pushed to move towards the direction of the sealing plate 196, as the inclined guide grooves 1911 are respectively formed on the left side and the right side of the cavity of the groove 197, the guide rod 1912 is arranged between the two inclined guide grooves 1911, the two ends of the guide rod 1912 are respectively connected inside the inclined guide grooves 1911 in a sliding manner, and the collar is fixedly sleeved on the middle portion of the outer circumferential surface of the guide rod 1912, so that the collar 1910 moves towards the direction of the sealing plate 196, the guide rod 1912 is driven to move towards the direction of the sealing plate 196, and the T-shaped block 195 is moved downwards along the inclined guide groove 1911, so that the silicone rubber gasket is completely blocked by the through grooves 191, and the silicone rubber gasket 191 is used for preventing the sealing plate 194 from penetrating into the groove 191, and the sealing plate 196 from damaging the groove 191.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (3)

1. The utility model provides a container formula lithium cell energy storage power station fire protection system, includes lithium cell energy storage power station main part (1), its characterized in that:
the lithium battery energy storage power station main body (1) is composed of a left end frame (101), a right end frame (103) and a plurality of middle frames (102) positioned between the left end frame (101) and the right end frame (103), locking components (7) are arranged between the left end frame (101) and the right end frame (103) and the middle frames (102) arranged in adjacent positions and between the two middle frames (102) arranged in adjacent positions, a header cabinet (3) is fixedly arranged at the front end of an inner cavity of the left end frame (101) and a distilled water device (4) is fixedly arranged at the rear end of the inner cavity of the right end frame (101), an electricity storage box (2) is fixedly arranged at the front end and the rear end of the inner cavity of the middle frame (102), a BMS system (6) is fixedly arranged at the front end of the inner cavity of the right end frame (103), combustible gas detectors (15) are respectively arranged at positions of the inner cavities of the left end frame (101) and the right end frame (103) close to the middle parts, a heptafluoropropane gas cylinder (16) is arranged at a position close to the electricity storage box (2), an explosion and an alarm is arranged at a position close to the top of the outer vertical face (10) of the middle frame (102), an overflow port (12) penetrates through the bottom of one end of the outer side of the explosion venting plate (10), and a temperature-sensitive detector (13) and a smoke-sensitive detector (14) are fixedly mounted at the position of the top of the inner cavity of the left end frame (101) corresponding to the confluence cabinet (3) and the position of the top of the inner cavity of the middle frame (102) corresponding to the power storage box (2);
double doors (104) are hinged to positions, corresponding to the junction cabinet (3), on the outer vertical surface of the left end frame (101) and positions, corresponding to the electric storage box (2), on the outer vertical surface of the middle frame (102), and single doors (105) are hinged to positions, corresponding to the air conditioner (5) and the BMS system (6), on the outer vertical surface of the right end frame (103);
a plurality of battery packs (21) are arranged in the power storage box (2), the battery packs (21) are sequentially stacked, each battery pack (21) comprises a single battery cell, fire detection pipes (22) are arranged between the outer surfaces of the battery packs (21) which are sequentially stacked, and the fire detection pipes (22) are arranged between the layers of the battery packs (21) in a Z shape;
the outer surface of each battery pack (21) is provided with a hole (23);
the distilled water device (4) comprises a distilled water tank and a fire pump (41) fixedly installed at the bottom of an inner cavity of the distilled water tank, two water delivery ports of the fire pump (41) are respectively provided with a main water delivery pipe (42) in a communicated manner, one end, far away from the fire pump (41), of one main water delivery pipe (42) is provided with a water absorption end head (43), one end, far away from the fire pump (41), of the other main water delivery pipe (42) is connected with two branch water delivery pipes (44) through a tee joint, the two branch water delivery pipes (44) are respectively provided with a plurality of cross main pipes (45) in a communicated manner, the end, close to the branch water delivery pipe (44) of each cross main pipe (45) and the end, close to the corresponding branch water delivery pipe (44), of each cross main pipe (45) and the end, close to the branch water delivery pipe (44) of the combiner cabinet (3) are respectively provided with a signal valve (47), the end, the cross main pipe (45) corresponds to the tail end of the power storage box (2) and the branch water delivery pipe (44) of the combiner cabinet (3) and is respectively connected with a water supply branch pipe group (46), the water supply group (46) corresponding to the power storage box (2) is composed of a plurality of water supply branch pipes which are mutually communicated with each other, the inner part of a spray nozzle is provided with the pipe network, and the spray nozzle of the corresponding to the branch pipe network is arranged on the branch pipe network;
a U-shaped fire partition wall (9) is fixedly arranged on the outer side of the collecting cabinet (3) and the outer side of each power storage box (2);
the one end top middle part that two divisions of doors (104) were kept away from to fire partition (9) is provided with accuse temperature protection component (19), accuse temperature protection component (19) including set up logical groove (191) on fire partition (9) top and be located logical groove (191) top perforation (193) at the middle part, fire partition (9) top face middle part is seted up and is vertical T type groove (192) that sets up, T type groove (192) bottom is linked together with logical groove (191), and T type groove (192) bottom extends to the inner chamber bottom face below of logical groove (191), the one end that T type groove (192) was kept away from to logical groove (191) inner chamber is fixed to be inlayed and is equipped with semiconductor refrigeration piece (194), T type groove (192) inside sliding connection who is located logical groove (191) top has T type piece (195), fire partition (9) inboard top middle part is provided with shrouding (196) that are the integral type structure with T type piece (195), fire partition (9) outside top middle part is fixed and is equipped with L (198), T type piece (195) is equipped with L cylinder (198) towards the middle part of one side of L type piece (198) one side of L type block (198), the perforation (199) is located and is worn to be equipped with the perforation of the fixed plate (199) and is located to the perforation of the fixed cylinder (199) and is located the fixed on the fire partition (199), the output end of the cylinder (199) is fixedly connected with a lantern ring (1910), the left side and the right side of the inner cavity of the groove (197) are both provided with inclined guide grooves (1911), a guide rod (1912) is arranged between the two inclined guide grooves (1911), two ends of the guide rod (1912) are respectively connected to the inner parts of the inclined guide grooves (1911) at corresponding positions in a sliding mode, and the lantern ring (1910) is fixedly sleeved in the middle of the outer peripheral surface of the guide rod (1912);
the bottom face four corners position of left end frame (101), right-hand member frame (103) and a plurality of middle frame (102) all fixedly mounted bury stilts (17), every bury stilts (17) the outer peripheral face all fixedly overlap and be equipped with restriction crown plate (18) near the position department of bottom.
2. The container type lithium battery energy storage power station fire protection system of claim 1, wherein:
the locking assembly (7) comprises a flange frame plate (71) and locking holes (72) which are horizontally arranged on the flange frame plate (71) in a penetrating mode, the flange frame plate (71) is fixedly sleeved on the outer peripheral surface of one end, close to the middle frame (102), of the left end frame (101) and the right end frame (103) and the two ends of the outer peripheral surface of the middle frame (102), the flange frame plate (71) on the left end frame (101) faces the inner edge position on one side of the middle frame (102) and the inner edge position, facing one side of the right end frame (103), of the flange frame plate (71) on the right end frame (103) faces one side of the middle frame (102) and the flange frame plate (71) on the middle frame (102), far away from one end of the right end frame (103), faces the position, corresponding to the insert frame (73), insert grooves (74) are formed in the positions, facing one side of the left end frame (101), of the flange frame plate (71) on the middle frame (102), movable insert grooves (74) corresponding to the inner edge position of the left end frame (103), and adjacent bolts (71) are arranged between the flange frame (71) and the adjacent flange frame (102).
3. The container type lithium battery energy storage power station fire protection system of claim 1, wherein:
the lifting lug assembly is characterized in that the middle parts of the top end faces of the left end frame (101), the right end frame (103) and the plurality of middle frames (102) are respectively provided with two lifting lug assemblies (8) which are arranged in axial symmetry about the horizontal center line of the lithium battery energy storage power station main body (1), each lifting lug assembly (8) comprises a trapezoidal block (81) fixedly connected with the top end faces of the left end frame (101), the right end frame (103) and the middle frames (102), and a circular ring (82) is fixedly embedded at the top of each trapezoidal block (81).
CN202210865395.6A 2022-07-22 2022-07-22 Container type lithium battery energy storage power station fireproof system Active CN115068863B (en)

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Publication number Priority date Publication date Assignee Title
CN109432634B (en) * 2018-10-08 2020-08-28 中国科学技术大学 Fire fighting method of container type lithium ion battery energy storage system
KR20210055364A (en) * 2019-11-07 2021-05-17 주식회사 엘지화학 Battery Module
CN111888691A (en) * 2020-08-04 2020-11-06 中国电力科学研究院有限公司 Automatic fire extinguishing system and method for lithium ion battery energy storage system
CN213027369U (en) * 2020-09-16 2021-04-20 云南三和自控设备有限公司 Fire-resistant waterproof insulating type bus duct
CN213884820U (en) * 2020-11-24 2021-08-06 国家电网有限公司 A multistage early warning fire control unit for lithium ion battery cabinet
CN113410559A (en) * 2021-06-16 2021-09-17 常州泰伊尔特科技有限公司 Lithium ion battery box fire protection system and automatic control method
CN114699679A (en) * 2022-04-16 2022-07-05 平高集团储能科技有限公司 Air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system and method

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