Energy storage power station safety monitoring device and method

Abstract

The invention belongs to the technical field of energy storage power station safety monitoring, and particularly relates to an energy storage power station safety monitoring device and method. Comprising a box body, four battery racks are arranged in the box body, and batteries are installed on the battery racks; rollers are installed at the bottom of the battery rack, notches are formed in the four corners of the box body, movable wallboards are arranged on the notches, and the movable wallboards are embedded into the notches. The movable wallboards and the battery racks are in one-to-one correspondence, and the movable wallboards and the corresponding battery racks are connected through corresponding transmission structures; ventilation and heat dissipation with the outside can be achieved quickly, the ventilation and heat dissipation effect is improved, and subsequent maintenance or fire extinguishing operation of workers is facilitated by opening the notches of the box body; according to the invention, a normal battery is not influenced by a thermal runaway battery, and the thermal runaway battery has a certain treatment space; the sensor can better monitor the state of the battery on the corresponding battery rack, and the monitoring effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of safety monitoring of energy storage power stations, and in particular relates to a safety monitoring device and method for energy storage power stations. Background Art

[0002] Energy storage power stations are facilities that can convert electrical energy into other forms for storage, and then convert it back into electrical energy to supply the power grid or users when needed. Energy storage power stations can use a variety of technologies to achieve energy storage, such as battery energy storage systems, using batteries as energy storage media. Battery systems are prone to fires, and the main causes of battery system fires include internal battery short circuits, overcharging and over-discharging, high temperature environments, mechanical damage, etc.

[0003] The Chinese patent application number 202410159881.5 discloses a thermal runaway-proof energy storage cabinet, which can provide good water-cooling and heat dissipation effect for each battery module. At the same time, it is convenient to automatically adjust the cooling water flow in the cooling pipe according to the surface temperature of each battery module, so that the heat dissipation efficiency is higher and the effect is better. In addition, by pre-monitoring the surface temperature of each battery module, when the surface temperature of a battery module rises abnormally, the temperature-sensitive magnetic power generation component is raised and lowered and aligned with the battery module, so that the temperature of the battery module can be focused on. When the battery module has thermal runaway, the temperature-sensitive magnetic power generation component can be detected in time, and the fire extinguishing component can be used to perform timely fire extinguishing operations, thereby ensuring the detection speed and accuracy of the temperature-sensitive magnetic power generation component, thereby ensuring that the use of the energy storage cabinet body is safer and more reliable.

[0004] In the prior art, when the energy storage cabinet uses water to cool the battery, the water cooling structure leads to high costs, complex structure, and is prone to leakage risks. In addition, after the battery thermal runaway, it cannot be handled promptly and effectively. The handling efficiency is low and the thermal runaway battery will also affect other normal batteries, resulting in greater losses. Summary of the invention

[0005] In order to solve at least one of the above-mentioned technical problems existing in the prior art, the present invention provides a safety monitoring device and method for an energy storage power station. The present invention can not only realize rapid ventilation and heat dissipation with the outside world, thereby improving the ventilation and heat dissipation effect, but also facilitate subsequent maintenance or fire extinguishing operations by opening the slots of the box body; the present invention can not only prevent normal batteries from being affected by thermal runaway batteries, but also allow batteries with thermal runaway to have a certain processing space; the sensor of the present invention can better monitor the battery status on the corresponding battery rack, thereby improving the monitoring effect.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A safety monitoring device for an energy storage power station comprises a box body, wherein four battery racks are arranged inside the box body, and batteries are installed on the battery racks; rollers are installed at the bottom of the battery racks; slots are opened at the four corners of the box body, and movable wall panels are arranged on the slots, and the movable wall panels are embedded in the slots; the movable wall panels correspond to the battery racks one by one, and the movable wall panels and the corresponding battery racks are connected through corresponding transmission structures;

[0008] The transmission structure includes a fixed rod and a transmission tooth plate, one end of the fixed rod is fixedly connected to the top of the battery rack, and the other end of the fixed rod is fixedly connected to the movable wall panel; a plurality of sliding grooves are provided under the transmission tooth plate, and the transmission tooth plate is slidably connected to the corresponding sliding grooves; a transmission motor is provided on one side of the transmission tooth plate, and a gear is provided at the output end of the transmission motor, and the gear is meshed with the transmission tooth plate; one end of the transmission tooth plate is fixedly connected to the bottom of the battery rack, and the other end of the transmission tooth plate is fixedly connected to the movable wall panel; the transmission motor and the sliding groove are both fixedly connected to the bottom surface of the box body, and four sensors are fixedly provided inside the top surface of the box body, and the sensors are located above the battery rack and correspond to the battery rack one by one.

[0009] Furthermore, a heat insulation structure is provided on one side of each of the battery racks, and the heat insulation structure includes two heat insulation plates; hinged frames are provided at the upper and lower ends of one end of the battery rack close to the center of the box, and two hinge grooves are provided at one end of the hinged frame; a hinge rod is hinged on each of the hinge grooves, and the end of the hinge rod away from the hinge groove is fixedly connected to the corresponding heat insulation plate; a limited position long groove is provided on the hinge rod; the upper and lower hinge rods form a group, and a limited position column is slidably connected to the limited position long groove of each group of hinge rods, and the limited position column is fixedly connected to the bottom surface of the box.

[0010] Furthermore, when the movable wall panel is engaged with the notch of the box body, the heat insulation board is located between the side of the corresponding box body and the battery rack; when the movable wall panel is separated from the notch of the box body, the heat insulation board is located between adjacent battery racks.

[0011] Furthermore, the sides of the box body are equipped with door bodies, and the bottom of the bottom surface of the box body is provided with a plurality of supporting feet.

[0012] Furthermore, a heat dissipation structure is arranged at the center of the top surface of the box, and the heat dissipation structure includes a ventilation pipe, which is fixedly connected to the center of the top surface of the box and connects the inside of the box with the outside; a fan is fixedly connected to the ventilation pipe located outside the box, and an air outlet is fixedly connected to the ventilation pipe located inside the box, and a plurality of air outlet holes are evenly arranged on the side walls of the air outlet.

[0013] Furthermore, one end of the air outlet close to the bottom surface of the box body is closed, and one end of the air outlet close to the ventilation pipe is connected to the ventilation pipe through a tapered pipe, and the diameter of the tapered pipe increases continuously from top to bottom.

[0014] Furthermore, a first filter screen is installed in the ventilation pipe.

[0015] Furthermore, a rain shield structure is installed on the top surface of the box body, and the rain shield structure includes a rain shield plate, and the rain shield plate is located above the fan. A plurality of support frames are provided at the bottom of the rain shield plate, and the support frames are fixedly connected to the top surface of the box body.

[0016] Furthermore, the movable wall panel comprises two movable panels whose ends are vertically connected, a vent is provided above the movable panel, and a second filter is installed on the vent; a fire extinguisher is installed between the two movable panels via a bracket.

[0017] The present invention also claims protection for a monitoring method using the above energy storage power station safety monitoring device, comprising the following steps:

[0018] S1. When the sensor is in a normal monitoring state, the movable wall panel is engaged with the notch of the box. At this time, the heat insulation board is located between the side of the corresponding box and the battery rack. The heat dissipation structure is running, and the fan draws cold air from the outside of the box into the inside of the box, and dissipates the heat of the batteries on the surrounding battery racks through the air outlet. The wind is guided through the heat insulation board, so that the heat dissipation effect of the corresponding battery rack is better, and the sensor can better monitor the batteries on the corresponding battery rack;

[0019] S2. When the battery on the battery rack is in a thermal runaway state, the sensor detects an abnormality, and the corresponding transmission motor is turned on to drive the transmission tooth plate to slide outward in the sliding groove, so that the movable wall plate is separated from the notch of the box body, and the battery rack moves toward the notch of the box body under the drive of the transmission tooth plate, so as to achieve rapid ventilation and heat dissipation with the outside world; at this time, the heat insulation board is located between adjacent battery racks for heat insulation treatment to prevent the battery in thermal runaway from affecting the battery on the adjacent battery rack;

[0020] S3. When the thermal runaway of the batteries on the battery rack worsens and causes combustion, take out the fire extinguisher between the two movable plates to extinguish the fire, and cooperate with other fire-fighting equipment to extinguish the batteries on the battery rack at the notch of the box.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The present invention adopts a transmission structure design. When the sensor detects that the battery below is experiencing thermal runaway, the transmission motor is operated to drive the transmission tooth plate to slide outward along the sliding groove, thereby causing the movable wall panel to detach from the notch of the box body. The battery rack moves toward the notch of the box body under the drive of the transmission tooth plate, which can not only achieve rapid ventilation and heat dissipation with the outside world and improve the ventilation and heat dissipation effect, but also facilitate subsequent maintenance or fire extinguishing operations by opening the notch of the box body.

[0023] (2) The present invention cooperates with the transmission structure and the heat insulation structure. When the sensor detects that the battery below is experiencing thermal runaway, the movable wall panel is separated from the slot of the box body. When the battery rack moves toward the slot of the box body under the transmission of the transmission tooth plate, the articulated frame pulls the two articulated rods to move. The articulated rods rotate along the limit slot under the action of the limit column, so that the heat insulation board is deflected and rotated between adjacent battery racks to isolate normal batteries from thermal runaway batteries. The heat insulation board that has not been deflected forms an isolation space, which can not only prevent normal batteries from being affected by thermal runaway batteries, but also provide a certain processing space for thermal runaway batteries, thereby facilitating subsequent fire extinguishing treatment and avoiding damage to other normal batteries during the fire extinguishing process.

[0024] (3) The present invention uses a heat dissipation structure to dissipate heat from the batteries inside the box. When the sensor is in a normal monitoring state, the movable wall panel is engaged with the groove of the box. At this time, the heat insulation plate is located between the side of the corresponding box and the battery rack. The wind is guided by the heat insulation plate, and the wind speed increases and moves upward, which can not only make the heat dissipation effect of the corresponding battery rack better, but also the sensor can better monitor the battery status on the corresponding battery rack, thereby improving the monitoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a safety monitoring device for an energy storage power station according to the present invention;

[0026] Figure 2 A schematic diagram of a decentralized structure of a safety monitoring device for an energy storage power station according to the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of a safety monitoring device for an energy storage power station according to the present invention;

[0028] Figure 4 It is a partial structural schematic diagram of a safety monitoring device for an energy storage power station of the present invention;

[0029] Figure 5 A schematic diagram of the partial structure of a safety monitoring device for an energy storage power station according to the present invention Figure 1 ;

[0030] Figure 6A schematic diagram of the partial structure of a safety monitoring device for an energy storage power station according to the present invention Figure 2 ;

[0031] Figure 7 A schematic diagram of the partial structure of a safety monitoring device for an energy storage power station according to the present invention Figure 3 ;

[0032] Figure 8 The internal operation status structure of a safety monitoring device for an energy storage power station of the present invention is schematically shown. Figure 1 ;

[0033] Fig. 9 The internal operation status structure of a safety monitoring device for an energy storage power station of the present invention is schematically shown. Figure 2 .

[0034] The reference numerals are as follows:

[0035] Box body-100; top surface-110; side surface-120; door body-130; bottom surface-140; supporting foot-150; movable wall panel-200; movable panel-210; vent-220; second filter-230; heat dissipation structure-300; fan-310; ventilation pipe-320; air outlet-330; conical tube-340; rain shield structure-400; rain shield-410; supporting frame-420; heat insulation structure-500; heat insulation board-510; hinged rod-520; limit long groove-530; limit column-540; battery rack-600; hinged frame-610; hinged groove-611; transmission structure-700; fixed rod-710; transmission gear plate-720; transmission motor-730; sliding groove-740; fire extinguisher-800; sensor-900. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0037] Although the steps in the present invention are arranged with numbers, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" used in this article involves and covers any and all possible combinations of one or more of the associated listed items.

[0038] Example

[0039] like Figure 1 to Figure 9As shown, a safety monitoring device for an energy storage power station includes a box body 100, wherein four battery racks 600 are arranged inside the box body 100, and batteries are installed on the battery racks 600; rollers are installed at the bottom of the battery racks 600, and slots are opened at the four corners of the box body 100, and movable wall panels 200 are arranged on the slots, and the movable wall panels 200 are embedded in the slots; the movable wall panels 200 correspond to the battery racks 600 one by one, and the movable wall panels 200 and the corresponding battery racks 600 are connected through corresponding transmission structures 700;

[0040] The transmission structure 700 includes a fixed rod 710 and a transmission tooth plate 720, one end of the fixed rod 710 is fixedly connected to the top of the battery rack 600, and the other end of the fixed rod 710 is fixedly connected to the movable wall plate 200; a plurality of sliding grooves 740 are provided below the transmission tooth plate 720, and the transmission tooth plate 720 is slidably connected to the corresponding sliding grooves 740; a transmission motor 730 is provided on one side of the transmission tooth plate 720, and a gear is provided at the output end of the transmission motor 730, and the gear is meshed with the transmission tooth plate 720; one end of the transmission tooth plate 720 is fixedly connected to the bottom of the battery rack 600, and the other end of the transmission tooth plate 720 is fixedly connected to the movable wall plate 200; the transmission motor 730 and the sliding groove 740 are both fixedly connected to the bottom surface 140 of the box body 100, and four sensors 900 are fixedly provided inside the top surface 110 of the box body 100, and the sensors 900 are located above the battery rack 600 and correspond to the battery rack 600 one by one.

[0041] It is worth noting that the sensor 900 of the present invention can monitor the battery and give an early warning of a fire, such as a particle sensor, etc., which is a prior art and will not be described in detail here.

[0042] Through the structural design of the transmission structure 700 of the present invention, when the sensor 900 detects that the battery below has thermal runaway, the transmission motor 730 is operated to drive the transmission tooth plate 720 to slide outward along the sliding groove 740, so that the movable wall panel 200 is separated from the notch of the box body 100, and the battery rack 600 moves toward the notch of the box body 100 under the drive of the transmission tooth plate 720, which can not only achieve rapid ventilation and heat dissipation with the outside world and improve the ventilation and heat dissipation effect, but also facilitate subsequent maintenance or fire extinguishing operations by opening the notch of the box body 100.

[0043] It is worth noting that the transmission motor 730 is controlled by an external power supply. The transmission motor 730 is a forward and reverse motor with a reset function. At the same time, the transmission motor 730 can be controlled manually or the transmission motor 730 and the sensor 900 can be linked and controlled through a PLC control system, which is not further limited here.

[0044] Furthermore, a heat insulation structure 500 is provided on one side of each of the battery racks 600, and the heat insulation structure 500 includes two heat insulation plates 510; a hinge frame 610 is provided at the upper and lower ends of the battery rack 600 close to the center of the box body 100, and two hinge grooves 611 are provided at one end of the hinge frame 610; a hinge rod 520 is hinged on each of the hinge grooves 611, and the end of the hinge rod 520 away from the hinge groove 611 is fixedly connected to the corresponding heat insulation plate 510; a limited position long groove 530 is provided on the hinge rod 520; the upper and lower hinge rods 520 are a group, and the limited position long groove 530 of each group of hinge rods 520 are slidably connected to the limited position column 540 together, and the limited position column 540 is fixedly connected to the bottom surface 140 of the box body 100.

[0045] It is worth noting that the heat insulation board 510 can be a lightweight heat insulation board with heat insulation function, and there is no specific limitation on the material.

[0046] Furthermore, when the movable wall panel 200 is engaged with the slot of the box body 100 , the heat insulation board 510 is located between the side surface 120 of the corresponding box body 100 and the battery rack 600 ; when the movable wall panel 200 is separated from the slot of the box body 100 , the heat insulation board 510 is located between adjacent battery racks 600 .

[0047] The present invention cooperates with the transmission structure 700 and the heat insulation structure 500. When the sensor 900 detects that the battery below has thermal runaway, the movable wall panel 200 disengages from the slot of the box 100. When the battery rack 600 moves toward the slot of the box 100 under the transmission of the transmission tooth plate 720, the articulated frame 610 pulls the two articulated rods 520 to move. The articulated rods 520 rotate along the limiting long groove 530 under the action of the limiting column 540, so that the heat insulation plate 510 is deflected and rotated between adjacent battery racks 600 to isolate normal batteries from thermal runaway batteries. The heat insulation plate 510 that has not been deflected forms an isolation space, which can not only prevent normal batteries from being affected by thermal runaway batteries, but also provide a certain processing space for batteries with thermal runaway, so as to facilitate subsequent fire extinguishing treatment while avoiding damage to other normal batteries during the fire extinguishing process.

[0048] Furthermore, the side surfaces 120 of the box 100 are all equipped with door bodies 130, and the bottom surface 140 of the box 100 is provided with a plurality of supporting feet 150. By providing a door body 130 on each side surface 120 of the box 100, it is convenient to install batteries and other components inside the box 100, improve the maintenance efficiency, and when a fire occurs, multiple door bodies 130 can be opened for emergency treatment such as ventilation or evacuation.

[0049] Furthermore, a heat dissipation structure 300 is provided at the center of the top surface 110 of the box 100, and the heat dissipation structure 300 includes a ventilation pipe 320, which is fixedly connected to the center of the top surface 110 of the box 100 and connects the inside of the box 100 with the outside; a fan 310 is fixedly connected to the ventilation pipe 320 located outside the box 100, and an air outlet 330 is fixedly connected to the ventilation pipe 320 located inside the box 100, and a plurality of air outlet holes are evenly opened on the side wall of the air outlet 330. The fan 310 sends the external cold air into the inside of the box 100 through the air outlet 330 for heat dissipation.

[0050] The present invention performs heat dissipation treatment on the batteries inside the box 100 through the heat dissipation structure 300. When the sensor 900 is in a normal monitoring state, the movable wall panel 200 is engaged with the groove of the box 100. At this time, the heat insulation plate 510 is located between the side surface 120 of the corresponding box 100 and the battery rack 600. The wind is guided by the heat insulation plate 510, and the wind speed becomes faster and goes upward, which can not only make the heat dissipation effect of the corresponding battery rack 600 better, but also the sensor 900 can better monitor the battery status on the corresponding battery rack 600, thereby improving the monitoring effect.

[0051] Furthermore, one end of the air outlet 330 close to the bottom surface 140 of the box 100 is closed, and one end of the air outlet 330 close to the ventilation pipe 320 is connected to the ventilation pipe 320 through a tapered pipe 340, and the diameter of the tapered pipe 340 increases from top to bottom. The structure of the tapered pipe 340 improves the air supply efficiency of the fan 310.

[0052] Furthermore, a first filter is installed in the ventilation pipe 320 to prevent external impurities from entering the interior of the box body 100 .

[0053] Furthermore, a rain shield structure 400 is installed on the top surface 110 of the box body 100, and the rain shield structure 400 includes a rain shield plate 410, and the rain shield plate 410 is located above the fan 310. A plurality of support frames 420 are provided at the bottom of the rain shield plate 410, and the support frames 420 are fixedly connected to the top surface 110 of the box body 100. The rain shield structure 400 can prevent rainwater from entering the interior of the box body 100 through the fan 310 and the ventilation pipe 320, thereby affecting the battery.

[0054] Furthermore, the movable wall panel 200 includes two movable panels 210 connected vertically at the ends, a vent 220 is provided above the movable panel 210, and a second filter 230 is installed on the vent 220; a fire extinguisher 800 is installed between the two movable panels 210 through a bracket. By installing the fire extinguisher 800 between the two movable panels 210, when the movable wall panel 200 is separated from the notch of the box body 100, when the battery thermal runaway burns, the staff can quickly extinguish the problem battery at the notch of the box body 100, thereby improving the fire extinguishing efficiency.

[0055] A monitoring method using the above energy storage power station safety monitoring device comprises the following steps:

[0056] S1. When the sensor 900 is in a normal monitoring state, the movable wall panel 200 is engaged with the notch of the box 100. At this time, the heat insulation board 510 is located between the side 120 of the corresponding box 100 and the battery rack 600. The heat dissipation structure 300 is running, and the fan 310 draws cold air from the outside of the box 100 into the inside of the box 100, and dissipates the heat of the batteries on the surrounding battery racks 600 through the air outlet 330. The wind is guided by the heat insulation board 510, so that the heat dissipation effect of the corresponding battery rack 600 is better, and the sensor 900 can better monitor the batteries on the corresponding battery rack 600.

[0057] S2. When the battery on the battery rack is in a thermal runaway state, the sensor 900 detects an abnormality, and the corresponding transmission motor 730 is turned on to drive the transmission tooth plate 720 to slide outward in the sliding groove 740, so that the movable wall plate 200 is separated from the notch of the box body 100, and the battery rack 600 moves toward the notch of the box body 100 under the drive of the transmission tooth plate 720, so as to achieve rapid ventilation and heat dissipation with the outside world; at this time, the heat insulation plate 510 is located between adjacent battery racks 600 for heat insulation treatment to prevent the battery in thermal runaway from affecting the battery on the adjacent battery rack 600;

[0058] S3. When the thermal runaway of the batteries on the battery rack worsens and causes combustion, the fire extinguisher 800 between the two movable plates 210 is taken out to extinguish the fire, and other fire-fighting equipment is used to extinguish the batteries on the battery rack 600 at the notch of the box body 100.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and changes without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A safety monitoring device for an energy storage power station, characterized in that: The invention comprises a box body (100), wherein four battery racks (600) are arranged inside the box body (100), and batteries are installed on the battery racks (600); rollers are installed at the bottom of the battery racks (600); slots are opened at four corners of the box body (100), and movable wall panels (200) are arranged on the slots, and the movable wall panels (200) are engaged with the slots; the movable wall panels (200) and the battery racks (600) correspond to each other one by one, and the movable wall panels (200) and the corresponding battery racks (600) are connected via corresponding transmission structures (700); The transmission structure (700) comprises a fixed rod (710) and a transmission tooth plate (720); one end of the fixed rod (710) is fixedly connected to the top of the battery rack (600), and the other end of the fixed rod (710) is fixedly connected to the movable wall plate (200); a plurality of sliding grooves (740) are provided below the transmission tooth plate (720), and the transmission tooth plate (720) is slidably connected to the corresponding sliding grooves (740); a transmission motor (730) is provided on one side of the transmission tooth plate (720), and a gear is provided at the output end of the transmission motor (730). , the gear meshes with the transmission tooth plate (720); one end of the transmission tooth plate (720) is fixedly connected to the bottom of the battery rack (600), and the other end of the transmission tooth plate (720) is fixedly connected to the movable wall plate (200); the transmission motor (730) and the sliding groove (740) are both fixedly connected to the bottom surface (140) of the box body (100); four sensors (900) are fixedly provided inside the top surface (110) of the box body (100); the sensors (900) are located above the battery rack (600) and correspond one to one with the battery rack (600).

2. According to claim 1, a safety monitoring device for an energy storage power station is characterized in that: A heat insulation structure (500) is provided on one side of each battery rack (600), and the heat insulation structure (500) includes two heat insulation boards (510); a hinge frame (610) is provided at the upper and lower ends of one end of the battery rack (600) close to the center of the box (100), and two hinge grooves (611) are provided at one end of the hinge frame (610); a hinge rod (520) is hinged on each hinge groove (611), and one end of the hinge rod (520) away from the hinge groove (611) is fixedly connected to the corresponding heat insulation board (510); a limited position long groove (530) is provided on the hinge rod (520); the upper and lower hinge rods (520) form a group, and a limited position column (540) is slidably connected in the limited position long groove (530) of each group of hinge rods (520), and the limited position column (540) is fixedly connected to the bottom surface (140) of the box (100).

3. According to claim 2, a safety monitoring device for an energy storage power station is characterized in that: When the movable wall panel (200) is engaged with the notch of the box body (100), the heat insulation board (510) is located between the side surface (120) of the corresponding box body (100) and the battery rack (600); when the movable wall panel (200) is separated from the notch of the box body (100), the heat insulation board (510) is located between adjacent battery racks (600).

4. The energy storage power station safety monitoring device according to claim 3, characterized in that: The side surfaces (120) of the box body (100) are each installed with a door body (130), and the bottom surface (140) of the box body (100) is provided with a plurality of supporting feet (150).

5. The energy storage power station safety monitoring device according to claim 2, characterized in that: A heat dissipation structure (300) is arranged at the center of the top surface (110) of the box body (100), and the heat dissipation structure (300) comprises a ventilation pipe (320), the ventilation pipe (320) is fixedly connected to the center of the top surface (110) of the box body (100), and the ventilation pipe (320) connects the inside of the box body (100) with the outside; a fan (310) is fixedly connected to the ventilation pipe (320) located outside the box body (100), and an air outlet (330) is fixedly connected to the ventilation pipe (320) located inside the box body (100), and a plurality of air outlet holes are evenly opened on the side wall of the air outlet (330).

6. The energy storage power station safety monitoring device according to claim 5, characterized in that: One end of the air outlet cylinder (330) close to the bottom surface (140) of the box body (100) is closed, and one end of the air outlet cylinder (330) close to the ventilation pipe (320) is connected to the ventilation pipe (320) through a tapered pipe (340), and the diameter of the tapered pipe (340) increases continuously from top to bottom.

7. The energy storage power station safety monitoring device according to claim 5, characterized in that: A first filter screen is installed in the ventilation pipe (320).

8. The energy storage power station safety monitoring device according to claim 5, characterized in that: A rain shield structure (400) is installed on the top surface (110) of the box body (100), and the rain shield structure (400) comprises a rain shield plate (410). The rain shield plate (410) is located above the fan (310), and a plurality of support frames (420) are provided at the bottom of the rain shield plate (410). The support frames (420) are fixedly connected to the top surface (110) of the box body (100).

9. The energy storage power station safety monitoring device according to claim 1, characterized in that: The movable wall panel (200) comprises two movable panels (210) whose ends are vertically connected, a vent (220) is provided above the movable panel (210), and a second filter (230) is installed on the vent (220); a fire extinguisher (800) is installed between the two movable panels (210) via a bracket.

10. A monitoring method using the energy storage power station safety monitoring device according to any one of claims 1 to 9, characterized in that: The steps include: S1. When the sensor (900) is in a normal monitoring state, the movable wall panel (200) is engaged with the notch of the box (100), and the heat insulation board (510) is located between the side surface (120) of the corresponding box (100) and the battery rack (600), the heat dissipation structure (300) is in operation, and the fan (310) draws cold air from the outside of the box (100) into the inside of the box (100), and dissipates heat from the batteries on the surrounding battery racks (600) through the air outlet (330); S2. When the battery on the battery rack is in a thermal runaway state, the sensor (900) detects an abnormality, and at this time, the corresponding transmission motor (730) is turned on to drive the transmission tooth plate (720) to slide outward in the sliding groove (740), so that the movable wall plate (200) is separated from the notch of the box body (100); the battery rack (600) moves toward the notch of the box body (100) under the drive of the transmission tooth plate (720), so as to achieve rapid ventilation and heat dissipation with the outside world; at this time, the heat insulation plate (510) is located between adjacent battery racks (600) for heat insulation treatment, so as to prevent the battery in thermal runaway from affecting the battery on the adjacent battery rack (600); S3. When the thermal runaway of the batteries on the battery rack worsens and causes combustion, the fire extinguisher (800) between the two movable plates (210) is taken out to extinguish the fire, and other fire-fighting equipment is used to extinguish the fire of the batteries on the battery rack (600) at the notch of the box (100).

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