Fire safety prevention and control device and method for energy storage system

Abstract

The invention relates to the technical field of energy storage, and discloses an energy storage system fire safety prevention and control device and method, and the device comprises two energy storage cabinets which are arranged in parallel at an interval; the plurality of battery packs are placed on the energy storage cabinet; the water tank is located on the outer side of one end of each energy storage cabinet and corresponds to the position between the two energy storage cabinets; the vertical guide rails are arranged on the opposite side of the energy storage cabinet and the inner side of the water tank; the upper ends of the vertical guide rails are communicated with the transverse guide rails; the transfer box is used for containing and sealing the battery pack subjected to thermal runaway, moves along the vertical guide rail and the transverse guide rail and puts the battery pack subjected to thermal runaway into the water tank; according to the transfer box, the battery packs of the energy storage cabinets on the two sides can be bidirectionally stored, the abnormal battery packs are sealed and transferred to the water tank, and open fire is extinguished; open fire of the abnormal battery pack is isolated in the transfer process, the fire of the abnormal battery pack is prevented from spreading in a narrow space to influence other normal battery packs, and the safety of the energy storage system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a fire safety prevention and control device and method for an energy storage system. Background Art

[0002] Battery energy storage cabinet is a collection of equipment used to store and manage energy, mainly used in energy storage systems. Its core function is to achieve energy storage, conversion and management, ensuring a stable supply and efficient use of electrical energy.

[0003] In energy storage systems such as energy storage cabinets, battery packs (Packs) are energy storage battery assembly packs, also known as battery plug-ins. They are devices that assemble multiple battery cells together to store energy and provide power. Battery packs generally include components such as battery cells, battery management systems (BMS), and casings. Battery cells are the core part of energy storage. BMS is responsible for monitoring and managing the charging and discharging process of the battery pack to ensure the safety and performance of the battery pack. Multiple packs are usually placed in energy storage cabinets. These packs are the basic energy storage units that make up the energy storage system. A battery cluster is a battery combination system composed of multiple packs.

[0004] Energy storage cabinets usually contain a large number of battery packs. Batteries are prone to fires when they are overcharged, over-discharged, short-circuited, or have thermal runaway. The runaway chemical reaction inside the battery will generate high temperatures, causing the battery casing to rupture, leading to electrolyte leakage and combustion. Moreover, the battery packs in the energy storage cabinet are densely arranged. Once a battery pack catches fire, it is easy to spread to other battery packs, causing the fire to spread.

[0005] In order to prevent the fire caused by battery fire from spreading and expanding, in the existing pack-level energy storage fire fighting system, when the battery thermal runaway phenomenon is found, the fire extinguishing agent can be released to the pack to take away the large amount of heat generated rapidly at the pack. However, the battery develops rapidly from thermal runaway to fire and then to the spread of fire. Abnormal batteries are easy to reignite and affect the entire energy storage cabinet. Therefore, timely removal of abnormal battery packs from the energy storage cabinet can effectively prevent other battery packs from being affected and reduce losses.

[0006] In the prior art, in a patented energy storage box-to-fire protection system with publication number CN110270030B, the battery is tilted and arranged on a battery rack. Once the battery becomes abnormal, the battery will tilt and slide from the battery rack into a fire water tank. However, the horizontal intervals of the battery racks in the prior art are small and the space is limited. The battery tilts and slides down in a parabolic fall. The batteries on the bottom layer can fall directly into the fire water tank, and the batteries on the middle and high layers will collide with the battery racks and batteries on the opposite side, easily causing damage to normal equipment on the opposite side. If the falling battery catches fire, part of the burning material will fall onto the battery rack on the opposite side due to the impact, causing the fire to spread and expand. In the energy storage cabinet with fire extinguishing function, the patent with publication number CN117594890B can timely detect the battery module with thermal runaway through the joint action of the sensing component, the pushing component and the transfer component, and transfer it to the fire extinguishing chamber for isolation and cooling, which can not only extinguish the open fire in time and prevent the fire from spreading, but also prevent the battery module from reigniting; but it only transfers the abnormal battery module through the first pallet, and the battery module is in an open state. When the abnormal battery module at the upper part of the energy storage cabinet is transported to the fire extinguishing chamber at the bottom, the open fire of the battery module is easy to spread to the battery module in the middle and lower part of the energy storage cabinet, causing the fire to spread and expand. Summary of the invention

[0007] The purpose of the present invention is to provide a fire safety control device and method for an energy storage system in order to solve the above-mentioned problems in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solutions: A fire safety prevention and control device for an energy storage system, comprising: Energy storage cabinets, two are arranged in parallel and at intervals; Several battery packs are placed on the energy storage cabinet; A water tank is located outside one end of the two energy storage cabinets and corresponds to between the two energy storage cabinets; A plurality of vertical guide rails, the vertical guide rails are arranged on opposite sides of the energy storage cabinet and on the inner side of the water tank; A transverse guide rail, the upper ends of the vertical guide rails are connected to the transverse guide rail; The transfer box receives and seals the battery pack with thermal runaway, moves along the vertical guide rail and the horizontal guide rail, and puts the battery pack with thermal runaway into the water tank.

[0009] Furthermore, it also includes: A lifting trolley is connected to the transfer box, lifting the transfer box up along the vertical guide rail, and driving the transfer box to move horizontally along the transverse guide rail; The trolley guide rail is located on the upper side of the transverse guide rail and supports the horizontal movement of the lifting trolley.

[0010] Furthermore, a first conical cylinder is provided at the lower side of the lifting trolley, and a second conical cylinder cooperating with the outer side of the first conical cylinder is provided at the upper side of the transfer box; when the lifting trolley drives the transfer box to translate, the outer side of the first conical cylinder fits with the inner side of the second conical cylinder.

[0011] Furthermore, the energy storage cabinet is arranged in a container.

[0012] Furthermore, a fire extinguisher containing a fire extinguishing agent is arranged outside the transfer box, an output end of the fire extinguisher is connected to the inside of the transfer box, and a valve is arranged at the output end of the fire extinguisher.

[0013] Furthermore, the transfer box is hinged with double doors on both sides facing the energy storage cabinet, and an elastic member is provided between the hinge of the double doors and the transfer box, and the elastic member closes the double doors; the side edges of the transfer box facing the energy storage cabinet are provided with guide columns that move along vertical guide rails and transverse guide rails.

[0014] Furthermore, a movable seat is provided in the transfer box for reciprocating linear movement to pull the battery pack from the energy storage cabinet into the transfer box; The movable seat is provided with a top block for overcoming the elastic force of the elastic member to push open the double-leaf door, and the movable seat is provided with an inverted U-shaped draw hook for lifting and moving. The middle part of the draw hook rises and falls along the movable seat, and the two ends are respectively matched with the battery packs of the two energy storage cabinets; A hook handle cooperating with the draw hook is provided on the outer side of the battery pack.

[0015] Furthermore, a delivery door is provided at the lower side of the transfer box.

[0016] Furthermore, one side of the delivery door is hinged to the transfer box; the other side of the delivery door is connected to a traction rope, and a reel for winding and releasing the traction rope is provided in the transfer box.

[0017] The present invention provides the following technical solution: a prevention and control method of a fire safety prevention and control device of an energy storage system, comprising the following steps: S1. When the battery pack has thermal runaway, the transfer box moves along the transverse guide rail and the vertical guide rail to the battery pack corresponding to the thermal runaway; S2. The transfer box receives the battery pack with thermal runaway and seals it in the transfer box, so that the battery pack with thermal runaway is isolated from other battery packs on the energy storage cabinet; S3. The transfer box moves along the vertical and horizontal guide rails to the upper part of the water tank, and the battery pack with thermal runaway is placed in the water tank.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The transfer box of the present invention can bidirectionally accommodate battery packs of energy storage cabinets on both sides, and seal abnormal battery packs to transfer them to a water tank to extinguish open fires; during the transfer process, the open fire of abnormal battery packs is isolated to prevent the fire of abnormal battery packs from spreading and affecting other normal battery packs in a small space, thereby ensuring the safety of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 for Figure 1 A partial enlarged schematic diagram.

[0021] Figure 3 Schematic diagram of the battery pack of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the transfer box of the present invention from the first perspective.

[0023] Figure 5 It is a side view schematic diagram of the transfer box of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the transfer box of the present invention from a second viewing angle.

[0025] Figure 7 It is a schematic diagram of the internal structure of the transfer box of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the state transfer box without a movable seat of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the movable seat of the present invention.

[0028] In the figure: 1. energy storage cabinet; 2. battery pack; 3. water tank; 4. vertical guide rail; 5. horizontal guide rail; 6. transfer box; 7. lifting trolley; 8. trolley guide rail; 9. container; 10. guide column; 11. first conical cylinder; 12. second conical cylinder; 13. fire extinguisher; 14. valve; 15. double door; 16. torsion spring; 17. stopper; 18. movable seat; 19. top block; 20. draw hook; 21. hook handle; 22. first lead screw; 23. first reduction motor; 24. strip hole; 25. limit block; 26. guide rod; 27. second lead screw; 28. second reduction motor; 29. ​​delivery door; 30. reel; 31. traction rope; 32. third reduction motor; 33. connecting rod. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] It should be noted that relational terms such as "first", "second" and "third" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Specific embodiments of the energy storage system fire safety prevention and control device and method provided by the present invention: See also Figure 1-9 The fire safety prevention and control device of the energy storage system includes an energy storage cabinet 1, a plurality of battery packs 2, a water tank 3, a plurality of vertical guide rails 4, a transverse guide rail 5, a transfer box 6, a lifting trolley 7 and a trolley guide rail 8.

[0034] Two energy storage cabinets 1 are arranged in parallel and at intervals; the two energy storage cabinets 1 are arranged in a container 9; a plurality of battery packs 2 are placed on the energy storage cabinets 1; the energy storage cabinets 1 have a plurality of layers of grids, each layer has a plurality of grids, and each grid is used to place a battery pack 2; and the grids of the two energy storage cabinets 1 correspond horizontally one by one.

[0035] It is common to set two opposite energy storage cabinets 1 in the container 9, which is different from the traditional dedicated energy storage cabinets, which need to be provided with cabinet doors. The energy storage cabinets 1 in the container 9 do not need to be provided with cabinet doors, and the ends of the battery packs 2 are exposed in the container 9, which can facilitate the battery packs 2 to be obtained by the transfer box 6.

[0036] The water tank 3 is located outside one end of the two energy storage cabinets 1 and corresponds to the space between the two energy storage cabinets 1; water is stored in the lower part of the water tank 3, and the battery pack 2 that has been initially extinguished is put into the water in the water tank 3 to completely eliminate the potential safety hazard and prevent the battery pack 2 from re-igniting. In this embodiment, the upper side of the water tank 3 is open, and in some other embodiments, an openable and closable box cover is provided on the upper side of the water tank 3, and the box cover is normally closed. When an abnormal battery pack 2 needs to be received, the box cover is opened.

[0037] Vertical guide rails 4 are provided on opposite sides of the energy storage cabinet 1 and inside the water tank 3; the vertical guide rails 4 correspond to the positions between the grids of the energy storage cabinet 1. Two vertical guide rails 4 are provided on two opposite side walls inside the water tank 3. All vertical guide rails 4 are arranged vertically, and two rows are symmetrically arranged in the container 9, that is, the vertical guide rails 4 on one side inside the water tank 3 and the vertical guide rails 4 on the outside of one energy storage cabinet 1 correspond to one row.

[0038] The upper ends of the vertical guide rails 4 are connected to the transverse guide rails 5. There are two transverse guide rails 5, which are parallel to each other. The inner sides of the upper ends of the vertical guide rails 4 are chamfered so that the upper ends of the vertical guide rails 4 are enlarged upwards, which facilitates the transfer box 6 to enter the vertical guide rails 4 from the transverse guide rails 5. The cross-sections of the vertical guide rails 4 and the transverse guide rails 5 are both U-shaped.

[0039] The transfer box 6 accommodates and seals the battery pack 2 in thermal runaway. Specifically, the transfer box 6 can pull the battery pack 2 in thermal runaway into the transfer box 6, and then seal the entrance of the battery pack 2. The transfer box 6 then moves along the vertical guide rails 4 and the transverse guide rails 5. The side edges of the transfer box 6 facing the energy storage cabinet 1 are provided with guide columns 10 that move along the vertical guide rails 4 and the transverse guide rails 5. Two guide columns 10 are provided on the outer sides of both ends of the transfer box 6. The spacing between the two guide columns 10 at each end is the same as the spacing between the two vertical guide rails 4. In this way, the two guide columns 10 are respectively lifted and lowered along the two adjacent vertical guide rails 4. In some other embodiments, the outer ends of the guide columns 10 can be rotatably sleeved with rollers to reduce the friction between the guide columns 10 and the inner sides of the guide rails.

[0040] The guide posts 10 at both ends of the transfer box 6 are located at the same height. When the guide posts 10 are moved up to the inside of the transverse guide rail 5, the guide posts 10 and the transfer box 6 can move laterally along the transverse guide rail 5. During the process of the transfer box 6 transferring the abnormal battery pack 2, the abnormal battery pack 2 is located inside the transfer box 6. The abnormal battery pack 2 is sealed and isolated inside the transfer box 6, and is isolated from other battery packs 2 in the container 9 and on the energy storage cabinet 1, which completely prevents the fire of the abnormal battery pack 2 from spreading outward, and ensures the safety of the entire energy storage cabinet 1 and the container 9.

[0041] The prevention and control method of the fire safety prevention and control device of the energy storage system includes the following steps: when the battery pack 2 is in thermal runaway, it is detected by the BMS of the battery pack 2 or the Parker-level smoke sensor temperature sensor; the transfer box 6 moves along the horizontal guide rail 5 and the vertical guide rail 4 to the corresponding battery pack 2 in thermal runaway; in some embodiments, traditional fire-fighting equipment is arranged on the energy storage cabinet 1, and after detecting the abnormality of the battery pack 2, the fire extinguishing agent is immediately sprayed into the battery pack 2; before the abnormal battery pack 2 has an open flame or before the fire develops, the transfer box 6 receives the battery pack 2 in thermal runaway and is sealed in the transfer box 6, so that the battery pack 2 in thermal runaway is isolated from other battery packs 2 on the energy storage cabinet 1; the transfer box 6 moves along the vertical guide rail 4 and the horizontal guide rail 5 to the upper part of the water tank 3, and the battery pack 2 in thermal runaway is put into the water tank 3; specifically, when the transfer box 6 moves to the upper side of the water tank 3 and then descends to the upper part of the water tank 3, the lower wall of the transfer box 6 can be opened to put the battery pack 2 in thermal runaway into the water of the water tank 3 to prevent the abnormal battery pack 2 from re-igniting.

[0042] The transfer box 6 in this embodiment cannot move actively by itself, but moves vertically and horizontally under the drive of the lifting trolley 7. The lifting trolley 7 is connected to the transfer box 6, lifts the transfer box 6 and moves up along the vertical guide rail 4, and drives the transfer box 6 to move horizontally along the horizontal guide rail 5; the lifting trolley 7 adopts the lifting trolley 7 on the bridge crane or the gantry crane, and the lifting trolley 7 has a hoisting structure, and the lower end of the wire rope of the hoisting structure is connected to the transfer box 6; the hoisting structure realizes the lifting of the transfer box 6 by winding the wire rope; when the hoisting structure releases the wire rope, the transfer box 6 vertically descends along the vertical guide rail 4 under the action of its own weight.

[0043] The trolley guide rail 8 is located on the upper side of the transverse guide rail 5 and supports the translation of the lifting trolley 7; the number of the trolley guide rails 8 is also two, which are arranged one by one on the upper side of the two transverse guide rails 5. The two trolley guide rails 8 are U-shaped rails with openings facing each other. The lifting trolley 7 has a walking structure, and the walking structure has four walking wheels that move along the trolley guide rails 8.

[0044] Since the lifting trolley 7 drives the transfer box 6 to move through the winch structure, the transfer box 6 can be stably lifted and lowered when the transfer box 6 moves vertically along the vertical guide rail 4. However, in the conventional technology, the lifting trolley 7 drives the transfer box 6 to move horizontally along the transverse guide rail 5 through the steel wire rope, which is not stable and causes the steel wire rope to tilt, and does not meet the lifting specifications; Therefore, in this embodiment, a first conical cylinder 11 is provided at the lower side of the lifting trolley 7, and a second conical cylinder 12 is provided at the upper side of the transfer box 6 to cooperate with the outer side of the first conical cylinder 11; when the lifting trolley 7 drives the transfer box 6 to translate, the outer side of the first conical cylinder 11 fits with the inner side of the second conical cylinder 12, that is, when the transfer box 6 rises to the height of the guide column 10 on the inner side of the transverse guide rail 5, the inner side of the second conical cylinder 12 fits with the outer side of the first conical cylinder 11. The two vertically matched conical cylinders can ensure the stability of the position of the transfer box 6 at the lower side of the lifting trolley 7 and form a lateral drive. Since the transfer box 6 and the second conical cylinder 12 are tightly against the lower side of the first conical cylinder 11 after the wire rope is reeled in, when the lifting trolley 7 translates, the first conical cylinder 11 applies a horizontal force to the second conical cylinder 12 to ensure the stable translation of the second conical cylinder 12 and the transfer box 6.

[0045] In order to prevent the temperature of the abnormal battery pack 2 from continuing to rise in the transfer box 6 and the fire from further developing. In this embodiment, the battery pack 2 being transferred in the transfer box 6 is extinguished. Specifically, a fire extinguisher 13 containing a fire extinguishing agent is provided on the outside of the transfer box 6. The fire extinguishing agent uses a gas fire extinguishing agent such as perfluorohexanone fire extinguishing agent or heptafluoropropane fire extinguishing agent. There is no fire extinguishing agent residue after the fire is extinguished, which is convenient for cleaning after the accident. The output end of the fire extinguisher 13 is connected to the inside of the transfer box 6, and a valve 14 is provided at the output end of the fire extinguisher 13. The valve 14 is electrically driven. When the battery pack 2 enters the transfer box 6 and the transfer box 6 is closed, the valve 14 opens, and the gas fire extinguishing agent enters the transfer box 6 to extinguish the abnormal battery pack 2 and block the development of the fire. After the transfer box 6 enters the upper side of the water tank 3, the valve 14 is closed before the abnormal battery pack 2 is placed into the water tank 3.

[0046] In order to store the abnormal battery pack 2 in the transfer box 6 and close the transfer box 6 after storing the battery pack 2, in this embodiment, the transfer box 6 is hinged with a double door 15 on both sides facing the energy storage cabinet 1, and the double door 15 includes two upper and lower doors; the transfer box 6 has double doors 15 at both ends, which can correspond to the battery packs 2 on the two energy storage cabinets 1. An elastic member is provided between the hinge of the double door 15 and the transfer box 6, and the elastic member is a torsion spring 16, which closes the double door 15; a stopper 17 is provided on the inner side of the side wall of the transfer box 6, and when there is no external force from other components, the torsion spring 16 closes the double door 15, and the corner of the double door 15 away from its hinge is blocked by the stopper 17, so that the double door 15 is kept closed.

[0047] A movable seat 18 is provided in the transfer box 6 for reciprocating linear movement to pull the battery pack 2 from the energy storage cabinet 1 into the transfer box 6; the movable seat 18 is a vertical plate-like structure, and four guide rods 26 are provided in the transfer box 6. The four guide rods 26 pass through the four corners of the movable seat 18, and the four corners of the movable seat 18 are provided with through holes that slide with the guide rods 26. Two second lead screws 27 and two second reduction motors 28 that drive the second lead screws 27 to rotate are rotatably installed in the transfer box 6. The two second lead screws 27 rotate synchronously, and the two second lead screws 27 symmetrically pass through the two edge positions of the movable seat 18. The two edge positions of the movable seat 18 are provided with threaded holes that threadably cooperate with the second lead screws 27. The rotation of the second lead screw 27 causes the movable seat 18 to reciprocate linearly under the linear guidance of the guide rods 26, and the moving direction is horizontal and perpendicular to both the transverse guide rail 5 and the vertical guide rail 4.

[0048] The movable seat 18 is provided with a top block 19 for overcoming the elastic force of the elastic member to push open the double-leaf door 15. Two top blocks 19 are provided, which cooperate with the two doors of the double-leaf door 15 respectively; the middle of the top block 19 passes through the upper and lower edges of the middle of the movable seat 18 respectively, and the two top blocks 19 are symmetrical. The top block 19 parts on both sides of the movable seat 18 can act on the double-leaf door 15 at both ends of the transfer box 6 respectively. The shape of the upper top block 19 is an isosceles trapezoidal block, and the shape of the lower top block 19 is an inverted isosceles trapezoidal block. The bottom corner of the isosceles trapezoid of the top block 19 pushes open the double-leaf door 15 so that the double-leaf door 15 overcomes the elastic force of the elastic member and opens; when the upper side of the isosceles trapezoid of the top block 19 fits with the double-leaf door 15, the double-leaf door 15 is perpendicular to its side wall on the transfer box 6, and the double-leaf door 15 is fully opened. In order to achieve lightweight, a groove is provided on the top block 19.

[0049] The movable seat 18 is provided with an inverted U-shaped hook 20 that can be raised and lowered. The middle part of the hook 20 can be raised and lowered along the movable seat 18, and the two ends can respectively cooperate with the battery packs 2 of the two energy storage cabinets 1; the outside of the battery pack 2 is provided with a hook handle 21 that cooperates with the hook 20, and the hook handle 21 is a horizontal U-shaped rod-like structure. When the initial position transfer box 6 corresponds to the battery pack 2, the hook 20 is at a position higher than the hook handle 21. When the movable seat 18 moves outward until the end of the hook 20 moves to the upper side of the hook handle 21, the hook 20 moves downward so that the downward bending part of its end extends into the inside of the hook handle 21. Then, the movable seat 18 drives the hook 20 to move into the transfer box 6 to pull the battery pack 2 into the transfer box 6. In order to accurately and efficiently pull the battery pack 2, two hook handles 21 are provided on the outside of the battery pack 2, and two hooks 20 are provided on the movable seat 18.

[0050] In actual use, since the hook 20 protrudes longer from the movable seat 18, the upper side door of the double-leaf door 15 is initially pushed open by the hook 20, and the subsequent opening of the upper side door of the double-leaf door 15 is supported by the top block 19; the full opening of the upper and lower doors of the double-leaf door 15 depends on the top block 19, and the top block 19 ensures that the double-leaf door 15 is in a fully open state. In this embodiment, the double-leaf doors 15 at both ends of the transfer box 6 and the two sides of the movable seat 18 have top block 19 parts and hook 20 parts, so that the device can pull the battery packs 2 of the energy storage cabinets 1 on both sides into the transfer box 6, and the double-leaf doors 15 at both ends are completely pushed open by the top block 19 on the side of the movable seat 18. After the battery pack 2 is completely entered into the transfer box 6, the double-leaf doors 15 are automatically closed under the action of the elastic member; in this way, the storage and closure of the battery pack 2 is achieved.

[0051] In order to realize the lifting and lowering of the hook 20, a vertical bar hole 24 is provided on the movable seat 18, and a first lead screw 22 is rotatably installed in the bar hole 24. The upper end of the first lead screw 22 extends to the outside of the bar hole 24 and is connected to a first reduction motor 23. The middle of the hook 20 passes through the bar hole 24 horizontally. Two limit blocks 25 are provided in the middle of the hook 20. The two limit blocks 25 are respectively located on both sides of the bar hole 24. The width of the limit blocks 25 is greater than the width of the bar hole 24, so that the hook 20 can only move vertically in the bar hole 24. A threaded hole is provided in the middle of the hook 20 to cooperate with the first lead screw 22; the first reduction motor 23 rotates the first lead screw 22 to make the hook 20 rise and fall along the bar hole 24, thereby realizing the cooperation between the hook 20 and the hook handle 21 of the battery pack 2.

[0052] After the battery pack 2 enters the transfer box 6, the hook 20 rises and resets. Even if the hook 20 does not rise, it does not affect the battery pack 2 falling into the water; the hook 20 can be reset before the next use.

[0053] A delivery door 29 is provided at the lower side of the transfer box 6, and one side of the delivery door 29 is hinged to the transfer box 6; a traction rope 31 is connected to the other side of the delivery door 29, and a reel 30 for winding and releasing the traction rope 31 is provided in the transfer box 6; there are two traction ropes 31, and there are two reels 30, and the two traction ropes 31 and the two reels 30 correspond to the two corners of the delivery door 29 away from the hinge of the delivery door 29. The two reels 30 rotate with the same central axis, and a third reduction motor 32 for driving the central axis to rotate is provided in the transfer box 6.

[0054] The horizontal delivery door 29 is supported at the lower side of the battery pack 2. When the reel 30 releases the traction rope 31, the delivery door 29 tilts. When the delivery door 29 is opened to a certain angle, the battery pack 2 falls into the water tank 3. In this embodiment, the side wall of the delivery door 29 and the lower wall of the transfer box 6 are hinged with corresponding connecting rods 33, and the corresponding connecting rods 33 are hinged; when the corresponding connecting rods 33 are located in a straight line, the opening angle of the delivery door 29 does not increase.

[0055] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fire safety control device for an energy storage system, characterized in that: include: Energy storage cabinets (1), two of which are arranged in parallel and at intervals; A plurality of battery packs (2) are placed on the energy storage cabinet (1); A water tank (3) located outside one end of the two energy storage cabinets (1) and corresponding to between the two energy storage cabinets (1); A plurality of vertical guide rails (4), wherein the vertical guide rails (4) are arranged on opposite sides of the energy storage cabinet (1) and on the inner side of the water tank (3); A transverse guide rail (5), wherein the upper ends of the vertical guide rails (4) are connected to the transverse guide rail (5); The transfer box (6) receives and seals the battery pack (2) in thermal runaway, moves along the vertical guide rail (4) and the transverse guide rail (5), and drops the battery pack (2) in thermal runaway into the water tank (3).

2. The fire safety control device for energy storage system according to claim 1, characterized in that: Also includes: A lifting trolley (7) is connected to the transfer box (6), lifting the transfer box (6) upward along the vertical guide rail (4), and driving the transfer box (6) to move horizontally along the transverse guide rail (5); The trolley guide rail (8) is located on the upper side of the transverse guide rail (5) and supports the translation of the lifting trolley (7).

3. The fire safety control device for energy storage system according to claim 2, characterized in that: A first conical cylinder (11) is provided on the lower side of the lifting trolley (7), and a second conical cylinder (12) is provided on the upper side of the transfer box (6) to cooperate with the outer side of the first conical cylinder (11); when the lifting trolley (7) drives the transfer box (6) to translate, the outer side of the first conical cylinder (11) fits with the inner side of the second conical cylinder (12).

4. The fire safety control device for energy storage system according to claim 1, characterized in that: The energy storage cabinet (1) is arranged in a container (9).

5. The fire safety control device for energy storage system according to claim 1, characterized in that: A fire extinguisher (13) containing a fire extinguishing agent is arranged outside the transfer box (6); an output end of the fire extinguisher (13) is connected to the inside of the transfer box (6); and a valve (14) is arranged at the output end of the fire extinguisher (13).

6. The fire safety control device for energy storage system according to claim 1, characterized in that: The transfer box (6) is hingedly provided with double doors (15) on both sides facing the energy storage cabinet (1), and an elastic member is provided between the hinge of the double doors (15) and the transfer box (6), and the elastic member closes the double doors (15); and the side edges of the transfer box (6) facing the energy storage cabinet (1) are provided with guide posts (10) that move along the vertical guide rails (4) and the transverse guide rails (5).

7. The fire safety control device for energy storage system according to claim 6, characterized in that: The transfer box (6) is provided with a movable seat (18) which can move back and forth linearly to pull the battery pack (2) from the energy storage cabinet (1) into the transfer box (6); The movable seat (18) is provided with a top block (19) for overcoming the elastic force of the elastic member to push open the double-leaf door (15); the movable seat (18) is provided with an inverted U-shaped draw hook (20) that can be lifted and moved; the middle portion of the draw hook (20) is lifted and lowered along the movable seat (18), and the two ends are respectively matched with the battery packs (2) of the two energy storage cabinets (1); A hook handle (21) that cooperates with the draw hook (20) is provided on the outside of the battery pack (2).

8. The fire safety control device for energy storage system according to claim 1, characterized in that: The lower side of the transfer box (6) is provided with a delivery door (29).

9. The fire safety control device for energy storage system according to claim 8, characterized in that: One side of the delivery door (29) is hinged to the transfer box (6); the other side of the delivery door (29) is connected to a traction rope (31), and a reel (30) for winding and releasing the traction rope (31) is provided in the transfer box (6).

10. The fire prevention and control method of the energy storage system fire safety prevention and control device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, when the battery pack (2) has thermal runaway; the transfer box (6) moves along the transverse guide rail (5) and the vertical guide rail (4) to the battery pack (2) corresponding to the thermal runaway; S2, a transfer box (6) receives the battery pack (2) in thermal runaway and seals it in the transfer box (6), so that the battery pack (2) in thermal runaway is isolated from other battery packs (2) on the energy storage cabinet (1); S3, the transfer box (6) moves along the vertical guide rail (4) and the transverse guide rail (5) to the upper part of the water tank (3), and the battery pack (2) in thermal runaway is placed into the water tank (3).

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