Fire extinguishing system for energy storage battery compartment of energy storage power station

Abstract

The invention discloses a fire extinguishing system for an energy storage battery cabin of an energy storage power station, and belongs to the technical field of fire fighting, the fire extinguishing system comprises a battery storage cabin, a cabin door is mounted outside the battery storage cabin through hinges, and a carbon dioxide generator and a fire extinguishing agent spraying box are fixedly mounted on the top surface of the battery storage cabin; an exhaust plate and a fire extinguishing agent spraying plate are arranged at the bottom of the carbon dioxide generator and the bottom of the fire extinguishing agent spraying box correspondingly and located on the inner side of the battery storage bin. According to the fire extinguishing device, the driving assembly and the extrusion assembly are arranged in a matched mode, through the design, the interior of the battery storage bin can be monitored in real time, when spontaneous combustion of a battery occurs, the fire extinguishing system can be controlled to be started in time to treat the spontaneous combustion condition, and the fire extinguishing mode of combining a dry powder extinguishing agent and carbon dioxide gas is adopted; the fire extinguishing effect can be greatly improved, meanwhile, gas and a fire extinguishing agent can be rapidly diffused and distributed in the cabin, and the actual application effect of the system is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire protection, and in particular relates to a fire protection system for an energy storage battery compartment of an energy storage power station. Background Art

[0002] Energy storage power stations, as a type of power facility, focus on storing electrical energy. Their core function is to store excess electricity when demand is low or when there's an oversupply; and to release this stored energy to meet demand when demand surges or the supply is insufficient. This process effectively balances electricity supply and demand, improving the overall efficiency and stability of the power system. Energy storage power stations come in a variety of types, including pumped hydro, compressed air, flywheel, superconducting magnetic, and various battery-based energy storage systems, such as lithium-ion, sodium-sulfur, and vanadium flow batteries. These different types of energy storage stations, based on their operating principles and characteristics, are suitable for a variety of application scenarios and needs. Because the batteries stored in energy storage stations are flammable, a robust fire protection system is required to provide stable control in the event of spontaneous combustion of the batteries.

[0003] Chinese patent CN112023304B discloses a fire protection system for an energy storage power station and a control method thereof. The system includes a control device, a prefabricated energy storage cabin, a liquid storage tank, a lifting device, a first fire extinguishing device, and a second fire extinguishing device. The lifting device is disposed in the liquid storage tank, and the prefabricated energy storage cabin is disposed on the lifting device. In a normal state, the prefabricated energy storage cabin is higher than the liquid level of the fire extinguishing fluid in the liquid storage tank. A detection device and at least one battery cluster are distributed in the prefabricated energy storage cabin. The control device is configured to receive and analyze detection signals sent by the detection device and generate different control signals based on the analysis results. The control signals include a first fire extinguishing control signal, a second fire extinguishing control signal, and a descending control signal. The first fire extinguishing control signal controls activation of the first fire extinguishing device, the second fire extinguishing control signal controls activation of the second fire extinguishing device, and the descending control signal controls the lifting device to descend so that the prefabricated energy storage cabin is immersed in the fire extinguishing fluid in the liquid storage tank. The system can prevent further spread of a fire.

[0004] Although this fire-fighting system can also control the fire, there is a great risk of using liquid to extinguish battery fires. The battery has the risk of explosion. At the same time, the fire-fighting effect cannot be guaranteed when a certain type of fire-fighting method is used to control the fire. In addition, when a fire occurs, the inflow of external oxygen cannot be suppressed, and the fire cannot be stably controlled. The actual application effect is not good. In order to solve the above problems, a fire-fighting system for the energy storage battery compartment of the energy storage power station is urgently needed. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that although the current fire protection system can control the fire, the use of liquid to extinguish battery fires is very dangerous and the battery has the risk of explosion. At the same time, the use of a certain type of fire extinguishing method to control the fire cannot guarantee the fire extinguishing effect. In addition, when a fire occurs, the influx of external oxygen cannot be suppressed, and the fire cannot be stably controlled. As a result, the actual application effect is poor. A fire protection system for the energy storage battery compartment of an energy storage power station is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fire protection system for an energy storage battery compartment of an energy storage power station, comprising a battery compartment, wherein a door is installed on the outside of the battery compartment via a hinge, a carbon dioxide generator and a fire extinguishing agent spray tank are fixedly installed on the top surface of the battery compartment, and an exhaust plate and a fire extinguishing agent spray plate are respectively provided at the bottom of the carbon dioxide generator and the fire extinguishing agent spray tank, wherein the exhaust plate and the fire extinguishing agent spray plate are both located on the inner side of the battery compartment, a plurality of ventilation slots are provided on the side wall of the battery compartment, and an inner compartment is provided on the inner side of the battery compartment; An extrusion assembly, a drive assembly and a side barrier assembly are provided inside the battery storage compartment. A negative pressure air outlet assembly is provided on the inner wall of the bottom surface of the battery storage compartment. The extrusion assembly and the side barrier assembly are located on both sides of the drive assembly. The side barrier assembly is used to shield the ventilation groove. The extrusion assembly and the negative pressure air outlet assembly are used to blow away the dry powder fire extinguishing agent accumulated on the bottom of the battery storage compartment. The drive assembly is used to drive the extrusion assembly and the side barrier assembly.

[0007] By adopting the above technical solution and matching the driving assembly and the extrusion assembly, this design can monitor the battery storage compartment in real time, and when the battery spontaneously combusts, the fire-fighting system can be promptly controlled to start and deal with the spontaneous combustion situation. The fire-fighting method that combines dry powder fire extinguishing agent with carbon dioxide gas can greatly improve the fire-fighting effect, and at the same time can enable the gas and fire-extinguishing agent to be quickly diffused and distributed in the compartment, thereby improving the actual application effect of the system.

[0008] As a further description of the above technical solution: The drive assembly includes a drive motor, which is fixedly mounted on an outer wall of one side of the battery storage compartment. A central shaft is fixedly mounted on one end of an output shaft of the drive motor, and a worm disc is fixedly mounted on the outside of the central shaft.

[0009] As a further description of the above technical solution: A convex shaft is fixedly mounted on the outer wall of one side of the worm disc, a swing half gear is rotatably mounted on the inner wall of the battery storage compartment on one side of the worm disc via a rotating shaft, and a side frame is fixedly mounted on the outer wall of one side of the swing half gear.

[0010] As a further description of the above technical solution: The side frame is sleeved on the outer sides of the central shaft and the convex shaft through a travel groove arranged inside the side frame. A side shaft is fixedly installed on one end of the central shaft, and an air flow fan is fixedly installed on the outside of the side shaft.

[0011] As a further description of the above technical solution: The extrusion assembly includes a rack, which is slidably mounted on a guide rail fixedly mounted on an inner wall of one side of the battery storage compartment through a slide groove provided on one side of the rack. A touch pressure plate is fixedly mounted on the bottom end of the rack, and a top shell is fixedly mounted on the top end of the rack. A thermal expansion block is provided inside the top shell, and the rocking half gear and the rack are meshed with each other.

[0012] As a further description of the above technical solution: A top plate is fixedly installed on the top of the thermal expansion block, and a switch is fixedly installed on the inner wall of the top surface of the battery storage compartment. The switch is used to control the opening of the carbon dioxide generator, the drive motor and the fire extinguishing agent spray box. The top plate is located directly below the switch.

[0013] As a further description of the above technical solution: The negative pressure air outlet assembly includes an air box, which is fixedly mounted on the inner wall of the bottom surface of the battery storage compartment. A piston is movably mounted inside the air box, a pressure plate is fixedly mounted on the top of the piston, a return spring is mounted on the outside of the piston, the pressure plate is located directly below the touch pressure plate, and an air outlet is provided on one side outer wall of the piston.

[0014] Furthermore, by providing a negative pressure air outlet component, this design can automatically blow up some fire extinguishing agents that are not covering the battery during fire extinguishing, so that they float again in the cabin, so that the fire extinguishing agent can be used multiple times to a certain extent, ensuring the effective use of the fire extinguishing agent and further improving the fire extinguishing effect.

[0015] As a further description of the above technical solution: The side stop assembly includes a bidirectional threaded shaft, which is rotatably mounted inside the battery storage compartment via a shaft sleeve. A driven worm roller is fixedly mounted at the middle position of the bidirectional threaded shaft, and the worm disc and the driven worm roller are meshed with each other.

[0016] As a further description of the above technical solution: The external threads of the bidirectional threaded shaft are installed with two threaded sleeves, the outer surfaces of the two threaded sleeves are fixedly installed with a positioning plate, the external surfaces of the two threaded sleeves are rotatably installed with a threaded block, and one end of the threaded block is fixedly installed with a side baffle.

[0017] As a further description of the above technical solution: The side wall of the side baffle is slidably connected to the inner wall of one side of the battery storage compartment, two limiting plates are fixedly installed on the top surface of the threaded block, and the clamping plate is embedded between the two limiting plates.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, by matching the drive assembly and the extrusion assembly, when the battery spontaneous combustion occurs in the battery storage compartment, the temperature in the equipment rises sharply, and the thermal expansion block on the extrusion assembly expands sharply due to the temperature, causing the top plate to rise until the top plate touches the switch. At this time, the carbon dioxide generator, the drive motor and the fire extinguishing agent spray box are controlled to start at the same time. The carbon dioxide generator introduces carbon dioxide into the compartment through the exhaust plate, and the fire extinguishing agent spray box sprays dry powder fire extinguishing agent into the compartment. At the same time, the drive motor can drive the worm disc to rotate, and the side shaft and the airflow fan can also rotate synchronously. The rotating airflow fan can The gas is disturbed, so that the carbon dioxide is quickly distributed to various areas in the cabin. At the same time, the dry powder fire extinguishing agent sprayed in is broken up, so that the dry powder fire extinguishing agent can float in the cabin and be evenly scattered on the batteries in the cabin. Through this design, the battery storage compartment can be monitored in real time. When the battery spontaneously combusts, the fire protection system can be controlled to start in time to deal with the spontaneous combustion situation. The fire extinguishing method that combines dry powder fire extinguishing agent with carbon dioxide gas can greatly improve the fire extinguishing effect. At the same time, it can make the gas and fire extinguishing agent quickly diffuse and distribute in the cabin, thereby improving the actual application effect of the system.

[0019] 2. In the present invention, a negative pressure air outlet component is provided. When the worm gear is driven to rotate, the cam shaft can be driven to make a circular motion. The cam shaft can make the rocking half gear rotate and swing back and forth through the rotating shaft. At this time, the rocking half gear that rotates back and forth can mesh with the rack. When the rocking half gear rotates counterclockwise, the rack can be driven to move downward, synchronously driving the touch plate to move downward. At this time, the touch plate can press the pressure plate. At this time, the air box can be discharged through the air outlet on one side of its bottom, and the discharged gas can be blown to the bottom surface of the inner cabin. At this time, the dry powder fire extinguishing agent that falls on the bottom surface of the inner cabin can be blown and floated again in the cabin for fire extinguishing. Through this design, some fire extinguishing agent not covering the battery can be automatically blown up during fire extinguishing, so that it can float again in the cabin, so that the fire extinguishing agent can be reused multiple times to a certain extent, ensuring the effective utilization of the fire extinguishing agent and further improving the fire extinguishing effect.

[0020] When the two-way threaded shaft rotates, the two side baffles with the threaded sleeve can be driven to move closer to each other until one end of the two side baffles contacts each other. At this time, the ventilation slot of the cabin body can be blocked, thereby effectively preventing oxygen from the external environment from flowing into the cabin. As the two-way threaded shaft continues to rotate, the two side baffles can no longer move further. Therefore, the positioning plate of the threaded sleeve can continuously apply pressure to the limit plate until the positioning plate breaks. At this time, the threaded sleeve can rotate synchronously with the two-way threaded shaft in the threaded block without affecting the continuous rotation of the two-way threaded shaft. Through this design, it is possible to automatically isolate the entry of oxygen from the external environment when fire extinguishing is started, further preventing the continued burning and spread of the fire, and effectively preventing the floating dry powder fire extinguishing agent from flying out through the ventilation slot, thereby ensuring the cleanliness of the area and further improving the application effect of the fire fighting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the fire protection system of the energy storage battery compartment of the energy storage power station.

[0022] Figure 2 This is a schematic diagram of the explosion 3D structure of the fire protection system of the energy storage battery compartment of the energy storage power station.

[0023] Figure 3 This is a schematic diagram of the combined three-dimensional structure of the battery storage compartment in the fire protection system of the energy storage battery compartment of the energy storage power station.

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the explosion of the battery storage compartment in the fire protection system of the energy storage battery compartment of the energy storage power station.

[0025] Figure 5 This is a schematic diagram of the exploded three-dimensional structure of the extrusion assembly, side stop assembly and drive assembly in the fire protection system of the energy storage battery compartment of the energy storage power station.

[0026] Figure 6 This is a schematic diagram of the explosion three-dimensional structure of the extrusion component and the negative pressure exhaust component in the fire protection system of the energy storage battery compartment of the energy storage power station.

[0027] Figure 7 This is a schematic diagram of the exploded three-dimensional structure of the drive component in the fire protection system of the energy storage battery compartment of the energy storage power station.

[0028] Figure 8 This is a schematic diagram of the explosion three-dimensional structure of the side barrier assembly in the fire protection system of the energy storage battery compartment of the energy storage power station.

[0029] Figure 9 Fire protection system for energy storage battery compartment of energy storage power station Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0030] Figure 10 This is a schematic diagram of the three-dimensional structure of the negative pressure exhaust component in the fire protection system of the energy storage battery compartment of the energy storage power station.

[0031] Legend: 1. Carbon dioxide generator; 2. Fire extinguishing agent spray tank; 3. Battery storage compartment; 4. Ventilation slot; 5. Hatch door; 6. Extrusion assembly; 61. Top plate; 62. Thermal expansion block; 63. Top shell; 64. Rack; 65. Contact plate; 7. Inner compartment; 8. Exhaust plate; 9. Fire extinguishing agent spray plate; 10. Side stop assembly; 101. Driven worm roller; 102. Bidirectional threaded shaft; 103. Threaded block; 104. Side stop; 105 , limit plate; 106, threaded sleeve; 107, positioning plate; 11, drive assembly; 111, rocking half gear; 112, worm plate; 113, drive motor; 114, cam; 115, center shaft; 116, air flow fan; 117, side shaft; 118, side frame; 12, negative pressure exhaust assembly; 121, return spring; 122, piston; 123, air box; 124, air outlet; 125, pressure plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] See also Figures 1-10 The present invention provides a technical solution: a fire protection system for an energy storage battery compartment of an energy storage power station, comprising a battery compartment 3, a hatch 5 being installed on the outside of the battery compartment 3 via hinges, a carbon dioxide generator 1 and a fire extinguishing agent spray tank 2 being fixedly installed on the top surface of the battery compartment 3, an exhaust plate 8 and a fire extinguishing agent spray plate 9 being respectively provided at the bottom of the carbon dioxide generator 1 and the fire extinguishing agent spray tank 2, both of which are located on the inner side of the battery compartment 3, a plurality of ventilation slots 4 being provided on the side walls of the battery compartment 3, and an inner compartment 7 being provided on the inner side of the battery compartment 3; The battery storage compartment 3 is provided with an extrusion assembly 6, a drive assembly 11 and a side barrier assembly 10. A negative pressure air outlet assembly 12 is provided on the inner wall of the bottom surface of the battery storage compartment 3. The extrusion assembly 6 and the side barrier assembly 10 are located on both sides of the drive assembly 11. The side barrier assembly 10 is used to shield the ventilation groove 4. The extrusion assembly 6 and the negative pressure air outlet assembly 12 are used to blow away the dry powder fire extinguishing agent accumulated on the bottom of the battery storage compartment 3. The drive assembly 11 is used to drive the extrusion assembly 6 and the side barrier assembly 10.

[0034] The drive assembly 11 includes a drive motor 113, which is fixedly mounted on an outer wall of one side of the battery storage compartment 3. A center shaft 115 is fixedly mounted on one end of the output shaft of the drive motor 113. A worm disc 112 is fixedly mounted on the outside of the center shaft 115. A convex shaft 114 is fixedly mounted on an outer wall of one side of the worm disc 112. One side of the worm disc 112 is located on the inner wall of the battery storage compartment 3 and is rotatably mounted with a swing half gear 111. A side frame 118 is fixedly mounted on an outer wall of one side of the swing half gear 111. The side frame 118 is sleeved on the outside of the center shaft 115 and the convex shaft 114 through a travel groove arranged inside the side frame 118. A side shaft 117 is fixedly mounted on one end of the center shaft 115, and an air flow fan 116 is fixedly mounted on the outside of the side shaft 117.

[0035] The extrusion assembly 6 includes a rack 64, which is slidably mounted on a guide rail fixedly mounted on the inner wall of one side of the battery storage compartment 3 through a slide groove provided on one side thereof. A touch pressure plate 65 is fixedly mounted on the bottom end of the rack 64, and a top shell 63 is fixedly mounted on the top of the rack 64. A thermal expansion block 62 is provided inside the top shell 63. The rocking half gear 111 and the rack 64 are meshed and connected with each other. A top plate 61 is fixedly mounted on the top of the thermal expansion block 62. A switch is fixedly mounted on the inner wall of the top surface of the battery storage compartment 3. The switch is used to control the opening of the carbon dioxide generator 1, the drive motor 113 and the fire extinguishing agent spray box 2. The top plate 61 is located directly below the switch.

[0036] The specific implementation method is as follows: when a battery spontaneous combustion occurs in the battery storage compartment 3, the temperature inside the equipment rises sharply, and the thermal expansion block 62 on the extrusion assembly 6 expands sharply due to the temperature, causing the top plate 61 to rise until the top plate 61 touches the switch. At this time, the carbon dioxide generator 1, the drive motor 113 and the fire extinguishing agent spray box 2 are controlled to start at the same time, and the carbon dioxide generator 1 introduces carbon dioxide into the compartment through the exhaust plate 8, and the fire extinguishing agent spray box 2 sprays dry powder fire extinguishing agent into the compartment. At the same time, the drive motor 113 can drive the worm disc 112 to rotate, and the side shaft 117 and the airflow fan 116 can also rotate synchronously. The rotating airflow fan 116 can disturb the carbon dioxide gas, so that the carbon dioxide is quickly distributed to various areas in the compartment, and at the same time, the sprayed dry powder fire extinguishing agent is dispersed so that the dry powder fire extinguishing agent can float in the compartment and be evenly scattered on the batteries in the compartment.

[0037] Through this design, the battery storage compartment 3 can be monitored in real time, and when the battery spontaneously combusts, the fire protection system can be promptly controlled to start and deal with the spontaneous combustion situation. The fire extinguishing method that combines dry powder fire extinguishing agent with carbon dioxide gas can greatly improve the fire extinguishing effect. At the same time, it can enable the gas and fire extinguishing agent to be quickly diffused and distributed in the compartment, thereby improving the practical application effect of the system.

[0038] The negative pressure air outlet assembly 12 includes an air box 123, which is fixedly mounted on the inner wall of the bottom surface of the battery storage compartment 3. A piston 122 is movably mounted inside the air box 123, and a pressure plate 125 is fixedly mounted on the top of the piston 122. A return spring 121 is sleeved on the outside of the piston 122. The pressure plate 125 is located directly below the touch pressure plate 65. An air outlet 124 is provided on one side outer wall of the piston 122. The side block assembly 10 includes a bidirectional threaded shaft 102, which is rotatably mounted inside the battery storage compartment 3 through a shaft sleeve. A driven worm roller 101 is fixedly mounted at the middle position of the bidirectional threaded shaft 102, and the worm disc 112 and the driven worm roller 101 are meshed and connected with each other.

[0039] The specific implementation method is as follows: when the worm disc 112 is driven to rotate, the cam shaft 114 can be driven to make a circular motion, and the cam shaft 114 can make the rocking half gear 111 rotate back and forth through the rotating shaft. At this time, the reciprocating rocking half gear 111 can mesh with the rack 64. When the rocking half gear 111 rotates counterclockwise, the rack 64 can be driven to move downward, and the touch plate 65 is synchronously driven to move downward. At this time, the touch plate 65 can press the pressure plate 125. At this time, the air box 123 can be discharged through the air outlet 124 on one side of its bottom, and the discharged gas can be blown to the bottom surface of the inner cabin 7. At this time, the dry powder fire extinguishing agent that falls on the bottom surface of the inner cabin 7 can be blown and floated again in the cabin for fire extinguishing.

[0040] Through this design, when firefighting, some fire extinguishing agents that are not covering the batteries can be automatically blown up again and floated in the cabin again, ensuring the effective use of the fire extinguishing agent and further improving the fire extinguishing effect.

[0041] The external thread of the bidirectional threaded shaft 102 is installed with two threaded sleeves 106, and a positioning plate 107 is fixedly installed on the outer surface of the two threaded sleeves 106. A threaded block 103 is rotatably installed on the outside of the two threaded sleeves 106. One end of the threaded block 103 is fixedly installed with a side baffle 104, and the side wall of the side baffle 104 is slidably connected to the inner wall of one side of the battery storage compartment 3. Two limiting plates 105 are fixedly installed on the top surface of the threaded block 103, and the positioning plate 107 is embedded between the two limiting plates 105.

[0042] The specific implementation method is as follows: when the worm disk 112 rotates, it can also drive the bidirectional threaded shaft 102 with a driven worm roller 101 on one side to rotate. When the bidirectional threaded shaft 102 rotates, it can drive the two side baffles 104 with the threaded sleeve 106 to move closer to each other until one end of the two side baffles 104 contacts each other. At this time, the ventilation slot 4 of the cabin body can be shielded, thereby effectively preventing oxygen in the external environment from flowing into the cabin. As the bidirectional threaded shaft 102 continues to rotate, the two side baffles 104 can no longer move, so the positioning plate 107 of the threaded sleeve 106 can continuously apply pressure to the limit plate 105 until the positioning plate 107 breaks. At this time, the threaded sleeve 106 can rotate synchronously with the bidirectional threaded shaft 102 in the threaded block 103 without affecting the continuous rotation of the bidirectional threaded shaft 102.

[0043] Through this design, when the fire extinguishing is started, the entry of oxygen from the external environment can be automatically isolated, further preventing the continued burning and spread of the fire. At the same time, it can also effectively prevent the floating dry powder fire extinguishing agent from flying out through the ventilation slot 4, ensuring the cleanliness of the area and further improving the application effect of the fire protection system.

[0044] Working principle: When a battery spontaneous combustion occurs in the battery storage compartment 3, the temperature inside the equipment rises sharply, and the thermal expansion block 62 on the extrusion assembly 6 expands rapidly due to the temperature, causing the top plate 61 to rise until the top plate 61 touches the switch. At this time, the carbon dioxide generator 1, the drive motor 113 and the fire extinguishing agent spray box 2 are controlled to start at the same time. The carbon dioxide generator 1 introduces carbon dioxide into the compartment through the exhaust plate 8, and the fire extinguishing agent spray box 2 sprays dry powder fire extinguishing agent into the compartment. At the same time, the drive motor 113 can drive the worm disc 112 to rotate, and the side shaft 117 and the airflow fan 116 can also rotate synchronously. The rotating airflow fan 116 can disturb the carbon dioxide gas, so that the carbon dioxide is quickly distributed to various areas in the compartment, and at the same time, the sprayed dry powder fire extinguishing agent is broken up so that the dry powder fire extinguishing agent can float in the compartment and evenly scatter on the batteries in the compartment. When the worm gear 112 is driven to rotate, the cam 114 can be driven to make a circular motion. The cam 114 can make the rocking half gear 111 rotate back and forth through the rotating shaft. At this time, the reciprocating rocking half gear 111 can mesh with the rack 64. When the rocking half gear 111 rotates counterclockwise, it can drive the rack 64 to move downward, synchronously driving the touch plate 65 to move downward. At this time, the touch plate 65 can press the pressure plate 125. At this time, the air box 123 can be discharged through the air outlet 124 on one side of its bottom. The discharged gas can be blown to the bottom surface of the inner cabin 7. At this time, the dry powder fire extinguishing agent that has fallen on the bottom surface of the inner cabin 7 can be blown out and floated again in the cabin to extinguish the fire. When the worm disc 112 rotates, it can also drive the bidirectional threaded shaft 102 with a driven worm roller 101 on one side to rotate. When the bidirectional threaded shaft 102 rotates, it can drive the two side baffles 104 with the threaded sleeve 106 to move closer to each other until one end of the two side baffles 104 contacts each other. At this time, the ventilation slot 4 of the cabin body can be shielded, thereby effectively preventing oxygen in the external environment from flowing into the cabin. As the bidirectional threaded shaft 102 continues to rotate, the two side baffles 104 can no longer move further. Therefore, the positioning plate 107 of the threaded sleeve 106 can continuously apply pressure to the limit plate 105 until the positioning plate 107 breaks. At this time, the threaded sleeve 106 can rotate synchronously with the bidirectional threaded shaft 102 in the threaded block 103 without affecting the continuous rotation of the bidirectional threaded shaft 102.

[0045] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A fire protection system for an energy storage battery compartment of an energy storage power station, comprising a battery compartment (3), characterized in that: The battery storage compartment (3) is provided with a door (5) on the outside via a hinge. A carbon dioxide generator (1) and a fire extinguishing agent spray box (2) are fixedly installed on the top surface of the battery storage compartment (3). An exhaust plate (8) and a fire extinguishing agent spray plate (9) are provided at the bottom of the carbon dioxide generator (1) and the fire extinguishing agent spray box (2), respectively. The exhaust plate (8) and the fire extinguishing agent spray plate (9) are both located on the inner side of the battery storage compartment (3). A plurality of ventilation slots (4) are provided on the side wall of the battery storage compartment (3). An inner compartment (7) is provided on the inner side of the battery storage compartment (3). The battery storage compartment (3) is provided with an extrusion assembly (6), a drive assembly (11) and a side baffle assembly (10); a negative pressure air outlet assembly (12) is provided on the inner wall of the bottom surface of the battery storage compartment (3); the extrusion assembly (6) and the side baffle assembly (10) are located on both sides of the drive assembly (11); the side baffle assembly (10) is used to shield the ventilation groove (4); the extrusion assembly (6) and the negative pressure air outlet assembly (12) are used to blow away the dry powder fire extinguishing agent accumulated on the bottom of the battery storage compartment (3); and the drive assembly (11) is used to drive the extrusion assembly (6) and the side baffle assembly (10).

2. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 1, characterized in that: The drive assembly (11) includes a drive motor (113), the drive motor (113) being fixedly mounted on an outer wall of one side of the battery storage compartment (3), a central shaft (115) being fixedly mounted on one end of an output shaft of the drive motor (113), and a worm disc (112) being fixedly mounted on the outside of the central shaft (115).

3. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 2, characterized in that: A convex shaft (114) is fixedly mounted on one side outer wall of the worm disc (112), a swing half gear (111) is rotatably mounted on one side inner wall of the battery storage compartment (3) of the worm disc (112), and a side frame (118) is fixedly mounted on one side outer wall of the swing half gear (111).

4. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 3, characterized in that: The side frame (118) is sleeved on the outside of the central shaft (115) and the convex shaft (114) through a travel groove provided therein. A side shaft (117) is fixedly mounted on one end of the central shaft (115), and an air flow fan (116) is fixedly mounted on the outside of the side shaft (117).

5. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 4, characterized in that: The extrusion assembly (6) includes a rack (64), and the rack (64) is slidably mounted on a guide rail fixedly mounted on an inner wall of one side of the battery storage compartment (3) through a slide groove provided on one side of the rack (64), a touch plate (65) is fixedly mounted on the bottom end of the rack (64), and a top shell (63) is fixedly mounted on the top end of the rack (64), and a thermal expansion block (62) is provided inside the top shell (63), and the rocking half gear (111) and the rack (64) are meshed and connected with each other.

6. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 5, characterized in that: A top plate (61) is fixedly mounted on the top of the thermal expansion block (62), and a switch is fixedly mounted on the inner wall of the top surface of the battery storage compartment (3). The switch is used to control the opening of the carbon dioxide generator (1), the drive motor (113) and the fire extinguishing agent spray box (2), and the top plate (61) is located directly below the switch.

7. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 6, characterized in that: The negative pressure air outlet assembly (12) includes an air box (123), which is fixedly mounted on the inner wall of the bottom surface of the battery storage compartment (3). A piston (122) is movably mounted inside the air box (123), a pressure plate (125) is fixedly mounted on the top of the piston (122), a return spring (121) is sleeved on the outside of the piston (122), the pressure plate (125) is located directly below the touch plate (65), and an air outlet (124) is provided on one side outer wall of the piston (122).

8. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 7, characterized in that: The side stop assembly (10) comprises a bidirectional threaded shaft (102), the bidirectional threaded shaft (102) being rotatably mounted inside the battery storage compartment (3) via a shaft sleeve, a driven worm roller (101) being fixedly mounted at a central position of the bidirectional threaded shaft (102), and the worm disc (112) and the driven worm roller (101) being meshedly connected with each other.

9. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 8, characterized in that: Two threaded sleeves (106) are installed on the external threads of the bidirectional threaded shaft (102), and a retaining plate (107) is fixedly installed on the outer surfaces of the two threaded sleeves (106). A threaded block (103) is rotatably installed on the outside of the two threaded sleeves (106), and a side baffle (104) is fixedly installed on one end of the threaded block (103).

10. The fire protection system of the energy storage battery compartment of the energy storage power station according to claim 9, characterized in that: The side wall of the side baffle (104) is slidably connected to the inner wall of one side of the battery storage compartment (3); two limiting plates (105) are fixedly mounted on the top surface of the threaded block (103); and the locking plate (107) is locked between the two limiting plates (105).

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