Composite fire detection device for energy storage power station

Abstract

The invention relates to the technical field of fire detection equipment, in particular to an energy storage power station composite fire detection device which comprises a mounting base, a water spraying pipeline is arranged in the middle of the mounting base, a conical shell is arranged in the middle of the water spraying pipeline, and a conical body capable of sealing the water spraying pipeline is arranged in the conical shell. A plurality of smoke suction mechanisms capable of sucking smoke in a fire scene are arranged on the peripheral side in the conical shell, a water curtain forming mechanism capable of forming a water curtain barrier in the fire scene is arranged at the bottom of the conical shell, and air suction control mechanisms in the smoke suction mechanisms utilize the deformation characteristic of bimetallic strips when the temperature rises. The opening and closing of an air inlet hole are automatically controlled, so that fire scene smoke is accurately sucked, the water curtain forming mechanism flexibly adjusts the size of a water curtain jet orifice according to the working state of the device through the cooperation between an upper sliding shell and a lower flow guide disc, and an effective water curtain barrier is formed in a fire scene.

Description

Technical Field

[0001] The present application relates to the technical field of fire detection equipment, and in particular to a composite fire detection device for an energy storage power station. Background Art

[0002] In today's energy field, energy storage power stations play a vital role, but their fire safety faces severe challenges. With the continuous development of energy storage technology and the continuous expansion of the scale of energy storage power stations, fire hazards are becoming increasingly prominent. Once a fire occurs, due to the special properties of batteries and other equipment in the energy storage power station, the fire presents many complex and dangerous characteristics.

[0003] Existing fire detection and extinguishing technologies have exposed many serious problems when dealing with fires in energy storage power stations. Traditional fire detection devices often react slowly, and the time interval from the occurrence of a fire to the issuance of an alarm is long, which greatly delays the best time to extinguish the fire. In addition, current equipment generally lacks effective extraction methods and precise control mechanisms. Smoke spreads rapidly in energy storage power stations, which not only hinders the evacuation of personnel, but also interferes with the development of fire-fighting work. Traditional devices are unable to quickly and accurately extract the smoke, making the visibility of the fire scene extremely low, increasing the difficulty and risk of rescue.

[0004] There is a lack of effective linkage mechanism between the existing fire extinguishing devices and fire detection devices. In the early stage of a fire, fire extinguishing measures cannot be initiated quickly. The existing fire extinguishing system is inefficient in terms of fire extinguishing and fire isolation, and cannot quickly and effectively suppress the spread of the fire. The fire may expand rapidly in the energy storage power station in a short period of time, and the traditional fire extinguishing method is difficult to form an effective barrier and cannot control the fire in a local area, resulting in serious damage to the entire energy storage power station, causing huge economic losses and even endangering the lives of people.

[0005] In summary, the existing fire detection and fire extinguishing technologies are far from meeting the fire safety needs of energy storage power stations. There is an urgent need for a new type of fire detection device that can respond quickly, accurately extract smoke from the fire scene, efficiently extinguish fires and isolate fires, and adapt to the special environment of energy storage power stations, so as to ensure the safe and stable operation of energy storage power stations and reduce the serious harm caused by fires. For this purpose, a composite fire detection device for an energy storage power station is invented, which can quickly respond to extinguish fire, extract smoke from the fire scene, and block the fire, so as to solve the problems arising from the above-mentioned background technology. Summary of the invention

[0006] In order to be able to quickly respond to extinguish the fire, extract smoke from the fire scene, and block the fire when a fire occurs, the present application provides a composite fire detection device for an energy storage power station.

[0007] A composite fire detection device for an energy storage power station provided in the present application adopts the following technical solution: it comprises a mounting seat, wherein a water spray pipe is arranged in the middle of the mounting seat, a conical shell is opened in the middle of the water spray pipe, a conical body capable of closing the water spray pipe is arranged in the conical shell, an upper connecting frame is arranged in the conical shell, a fixed compression spring is arranged on the upper connecting frame, the top end of the fixed compression spring is fixedly connected to the conical body, a traction mechanism capable of driving the conical body to slide is arranged in the conical shell, a locking mechanism capable of locking the position of the conical body is arranged in the conical shell, a plurality of smoke suction mechanisms capable of absorbing smoke from a fire scene are arranged on the peripheral side of the conical shell, a water spray hole connected to the outside is opened on the peripheral side of the conical shell, and a water curtain forming mechanism capable of forming a water curtain barrier at the fire scene is arranged at the bottom of the conical shell.

[0008] Optionally, the traction mechanism includes an armature, an armature is provided at the bottom of the conical body, the armature can slide up and down on the upper connecting frame, a lower connecting frame is provided on the lower side of the conical shell, an insulating shell is provided on the lower connecting frame, an iron core is provided in the middle of the insulating shell, an insulating cavity is provided in the middle of the insulating shell, a coil wound around the outside of the iron core is provided in the insulating cavity, a fixed cavity is provided at the bottom of the lower connecting frame, an upper contact electrically connected to one electrode end of the coil is provided at the top of the fixed cavity, a power module is provided on the mounting seat, the other electrode end of the coil is electrically connected to one electrode end of the power module, a sliding frame which can slide up and down is provided in the fixed cavity, a lower contact which can contact the upper contact is provided in the middle of the sliding frame, the lower contact is electrically connected to the other electrode end of the power module, and a closed cavity is provided at the bottom of the fixed cavity, and a liquid that expands when heated is contained in the closed cavity.

[0009] Optionally, the locking mechanism includes an elastic connecting rod, which is respectively provided on both sides of the bottom of the conical body, and locking grooves corresponding to the elastic connecting rods are provided in the conical shell. The elastic connecting rod can slide into the locking groove on its corresponding side when it moves downward, and a connecting groove connected to the locking groove is provided in the conical shell. A slidable pushing rod is provided in the connecting groove, and a return spring is mounted on the push rod. The other end of the return spring is fixed in the connecting groove, and a push handle is provided on the end of the push rod away from the locking groove.

[0010] Optionally, the smoke suction mechanism includes a connecting thin branch tube, which is L-shaped, and a conical acceleration pipe that can be connected to the connecting thin branch tube is opened in the conical shell, and a foaming plate is arranged on the end of the conical acceleration pipe away from the connecting thin branch tube, and a plurality of foaming holes are opened on the foaming plate, and a conical column inserted into the conical acceleration pipe is arranged on the foaming plate, and an exhaust pipe is arranged on the end of the conical acceleration pipe away from the conical shell, and the other end of the exhaust pipe is fixedly connected to the mounting seat and connected to the outside, and an air intake control mechanism corresponding to the conical acceleration pipe is arranged on the outside of the conical shell.

[0011] Optionally, the air intake control mechanism includes an air intake shell, an air intake hole is formed on the air intake shell, a bimetallic strip for closing the air intake hole is arranged inside the air intake shell, and the bimetallic strip bends and deforms when the temperature rises to open the air intake hole.

[0012] Optionally, the water curtain forming mechanism includes an upper sliding shell that can slide in a conical shell, a lower guide plate is provided on the outer side of the fixed cavity, the upper sliding shell is fixedly connected to the sliding frame, so the sliding frame drives the upper sliding shell to slide when it moves, and an annular water curtain spray port is opened between the upper sliding shell and the lower guide plate, and the upper sliding shell adjusts the size of the water curtain spray port when it slides.

[0013] In summary, this application includes the following beneficial technical effects: 1. The air suction control mechanism in the smoke suction mechanism uses the deformation characteristics of the bimetallic strip when the temperature rises to automatically control the opening and closing of the air inlet, so as to accurately suck the smoke from the fire scene. In combination with other detection methods, it effectively improves the accuracy of fire detection, reduces the possibility of false alarms and missed alarms, and achieves a rapid response to fire, thus buying valuable time for subsequent firefighting operations; 2. The design of the water spray pipe and related mechanisms enables the device to quickly spray water to extinguish fire when a fire occurs. The water curtain forming mechanism flexibly adjusts the size of the water curtain spray port according to the working state of the device through the cooperation between the upper sliding shell and the lower guide plate, forming an effective water curtain barrier at the fire scene, which can not only suppress the spread of fire, but also block the spread of smoke, creating favorable conditions for fire extinguishing and personnel evacuation, and improving fire extinguishing efficiency and safety; 3. The design of the elastic connecting rod and locking groove in the locking mechanism, as well as the cooperation of the push rod and the reset spring, ensure the stability of the cone during operation. When the cone moves to the corresponding position, it can be reliably locked to prevent the device from malfunctioning due to factors such as water flow impact during the fire extinguishing process, thereby ensuring the continuous and effective implementation of the fire extinguishing work. At the same time, after the fire is extinguished, it is convenient to reset and maintain the device, thereby improving the reliability and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the device is shown in FIG. Figure Ⅰ ; Figure 2 The overall structure of the device is shown in FIG. Figure II ; Figure 3 This is the main view of the device; Figure 4 is a cutaway schematic diagram of the device; Figure 5 It is a schematic diagram of the interior of the conical shell of the device; Figure 6 For this device Figure 4 A magnified view of middle; Figure 7 The overall structure of the device is shown in FIG. Figure III ; Figure 8 For this device Figure 4 Enlarged view of middle B; Fig. 9 is an enlarged view of the foaming plate of the device; Among them, 1. mounting seat, 2. water spray pipe, 3. conical shell, 4. conical body, 5. upper connecting frame, 6. fixed compression spring, 7. traction mechanism, 8. locking mechanism, 9. smoke suction mechanism, 10. water spray hole, 11. water curtain forming mechanism, 12. armature, 13. lower connecting frame, 14. insulating shell, 15. iron core, 16. insulating cavity, 17. coil, 18. fixed cavity, 19. upper contact piece, 20. power module, 21. sliding frame, 22. lower contact piece , 23. Closed cavity, 24. Elastic connecting rod, 25. Locking groove, 26. Connecting groove, 27. Push rod, 28. Reset compression spring, 29. Push handle, 30. Connecting fine branch pipe, 31. Conical acceleration pipe, 32. Foaming plate, 33. Foaming pores, 34. Conical column, 35. Exhaust pipe, 36. Intake control mechanism, 37. Intake shell, 38. Inlet hole, 39. Bimetallic strip, 40. Upper sliding shell, 41. Lower guide plate, 42. Water curtain injection port. DETAILED DESCRIPTION

[0015] The present application is further described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0016] Reference Figure 1 to Figure 9An embodiment shown is as follows: the mounting seat 1 is used as the basic supporting component of the whole device, and a mounting hole is provided on it for easy installation. The mounting seat 1 is made of metal material, has sufficient strength and stability, and is used to fix other components such as the water spray pipe 2. The water spray pipe 2 is fixedly connected to the middle of the mounting seat 1. The mounting seat 1 is made of stainless steel and can withstand a certain water pressure to ensure the delivery of water for fire extinguishing. The conical shell 3 in the middle of the water spray pipe 2 is made of aluminum alloy, which is light and has a certain strength. It is tightly connected to the water spray pipe 2 to ensure the stability of the internal structure. The conical body 4 is made of rubber material, which fits tightly with the inner wall of the conical shell 3 and can effectively close the water spray pipe 2 in the untriggered state to prevent water leakage. The upper connecting frame 5 is fixed in the conical shell 3 by welding or bolting to provide an installation position for the fixed compression spring 6. One end of the fixed compression spring 6 is connected to the upper connecting frame 5, and the other end is fixedly connected to the bottom of the conical body 4. Its function is to provide a reset force after the conical body 4 moves, to ensure that the device can be used multiple times and maintain the closed position of the conical body 4 in a normal state. A traction mechanism 7 is provided in the conical shell 3 to drive the conical body 4 to slide, a locking mechanism 8 is provided in the conical shell 3 to lock the position of the conical body 4, 12 smoke suction mechanisms 9 are provided on the circumferential side of the conical shell 3 to absorb the smoke in the fire scene, a plurality of water spray holes 10 connected to the outside are provided on the circumferential side of the conical shell 3, and a water curtain forming mechanism 11 is provided at the bottom of the conical shell 3 to form a water curtain barrier at the fire scene; Among them, the traction mechanism 7: when a fire occurs, the temperature change triggers the action of related components, so that the circuit is connected to generate a magnetic field or use other power methods to drive the cone 4 to overcome the elastic force of the fixed compression spring 6 to slide upward, thereby opening the water spray pipe 2, realizing the key linkage steps from fire detection to water spraying and extinguishing. It is an important driving component for starting the fire extinguishing procedure, ensuring that the device can quickly respond to fire signals and take fire extinguishing actions in time; Locking mechanism 8: When the cone 4 moves to the predetermined position under the action of the traction mechanism 7, the elastic connecting rod 24 in the locking mechanism 8 slides into the locking groove 25 to fix the position of the cone 4 under the action of its own elastic force and structural design. Its function is to ensure that during the process of water spraying fire extinguishing, the cone 4 will not move accidentally due to external factors such as water flow impact and vibration, and ensure that the water spray hole 10 remains in an open state, so that the fire extinguishing work can be carried out stably and continuously, and the reliability and stability of the fire extinguishing process are improved until the fire is extinguished or the conditions for releasing the lock are met; Smoke suction mechanism 9: At the beginning of a fire, the air intake control mechanism 36 senses the temperature change and automatically opens the air inlet 38. The structural design of the connecting thin branch pipe 30, the conical acceleration pipe 31 and the foaming plate 32 allows the outside air to quickly enter and form a negative pressure at the foaming plate 32, and accurately and efficiently sucks the fire smoke into the conical shell 3. On the one hand, it provides more accurate smoke samples for fire detection, improves the accuracy and timeliness of fire detection, and reduces the possibility of false alarms and missed alarms; on the other hand, extracting smoke also helps to improve the local visibility and air quality of the fire scene, creating relatively favorable conditions for subsequent fire fighting and personnel evacuation; Water spray hole 10: As a connecting channel between the water spray pipe 2 and the external fire area, when the cone 4 is driven by the traction mechanism 7 to move upward to open the water spray pipe 2, water is sprayed evenly from the water spray pipe 2 to the fire scene through the water spray hole 10. Its function is to directly transport the fire extinguishing water to the fire area, directly cool and extinguish the flames, and wet and cool the surrounding flammable materials to prevent the fire from spreading further. It is one of the direct execution components for realizing the fire extinguishing function. Its distribution position and aperture size and other parameters directly affect the coverage and effect of water spray fire extinguishing; Water curtain forming mechanism 11: When a fire occurs, it cooperates with other mechanisms, especially with the sliding frame 21. The sliding frame 21 moves to drive the upper sliding shell 40 to slide relative to the lower guide plate 41, and adjusts the size of the annular water curtain injection port 42 between the two. The main function of the water curtain forming mechanism 11 is to form a water curtain barrier at the fire scene. This barrier can not only block the fire and prevent the flame from spreading to the surroundings, but also block and dilute the smoke to a certain extent, reduce the diffusion speed and toxicity of the smoke, and gain more time and space for fire fighting. At the same time, it also provides a relatively safe passage for personnel evacuation or reduces the threat of smoke and fire to the escape route of personnel; The implementation principle of the above embodiment is: when no fire occurs, the cone 4 maintains a closed state on the water spray pipe 2 under the action of the fixed compression spring 6, and the device is in standby mode. When the fire triggers the relevant mechanism, the cone 4 will overcome the elastic force of the fixed compression spring 6 and move upward, thereby opening the water spray pipe 2 and realizing the first step of spraying water to extinguish the fire.

[0017] See attached Figure 4 , Figure 5 , Figure 6 , Figure 7An embodiment shown is as follows: the armature 12 is fixed at the bottom of the cone 4 and is tightly combined with the cone 4. It can slide up and down smoothly in the slideway on the upper connecting frame 5 to ensure effective cooperation with the traction mechanism 7. The lower connecting frame 13 is located below the cone shell 3 and is fixedly connected to the cone shell 3 by welding or bolts to provide stable support for components such as the insulating shell 14. The insulating shell 14 is made of high-temperature resistant insulating plastic and is fixed on the lower connecting frame 13. The iron core 15 inside it is stacked with silicon steel sheets, which can effectively enhance the magnetic field strength. The coil 17 is wound around the outside of the iron core 15. The number of turns and the wire diameter are determined according to the actual electromagnetic force requirements. Its two ends are respectively connected to the upper contact piece 19 and the power module 20. When the circuit is turned on, a magnetic field is generated to attract the armature 12 The insulating cavity 16 is opened inside the insulating shell 14, and the fixed cavity 18 is located at the bottom of the lower connecting frame 13. It is a closed structure. The upper contact piece 19 is fixed on the top thereof and is connected to one electrode end of the coil 17 through a wire to ensure the transmission of current. The sliding frame 21 is placed in the fixed cavity 18 and can slide up and down in the cavity. It is made of plastic. The lower contact piece 22 in the middle corresponds to the upper contact piece 19. Under the push of the heat-expanding liquid, it can contact the upper contact piece 19 to achieve circuit conduction. The closed cavity 23 is located at the bottom of the fixed cavity 18. The heat-expanding liquid such as alcohol contained inside has a volume determined according to the expansion force required by temperature changes. It expands under the high temperature environment of the fire, pushing the sliding frame 21 to move upward, triggering the traction mechanism 7 to work.

[0018] The implementation principle of the above embodiment is: when a fire occurs, the high temperature of the fire scene causes the heat-expandable liquid in the closed cavity 23 to expand, pushing the sliding frame 21 to move upward, causing the lower contact piece 22 to contact the upper contact piece 19, thereby connecting the circuit between the power module 20 and the coil 17. After the coil 17 is energized, a magnetic field is generated, attracting the armature 12 to move upward. Since the armature 12 is connected to the cone 4, the cone 4 is driven to slide upward to overcome the elastic force of the fixed compression spring 6, opening the water spray pipe 2, and realizing the linkage between fire detection and water spraying fire extinguishing.

[0019] Refer to the attached Figure 8An embodiment shown is as follows: the elastic connecting rod 24 is made of spring steel and has good elasticity and strength. One end of the elastic connecting rod 24 is connected to the two sides of the bottom of the cone 4 by welding or riveting, and the other end is a free end, which can move with the cone 4 when it moves. The locking groove 25 is arranged in the cone shell 3, and the position corresponds to the elastic connecting rod 24. The depth and width are designed according to the size of the elastic connecting rod 24 to ensure that the elastic connecting rod 24 can accurately slide into the locking groove 25 when moving downward, thereby locking the position of the cone 4. The connecting groove 26 is connected to the locking groove 25, and the push rod 27 inside it is made of stainless steel and is slidably connected in the connecting groove 26. The reset compression spring 28 set on the push rod 27 is a coil spring, one end of which is fixed to the inner wall of the connecting groove 26, and the other end contacts the push rod 27 to provide a reset force for the push rod 27. The push handle 29 is fixed to the end of the push rod 27 away from the locking groove 25, and extends out of the cone shell 3, so that the operator can manually operate the push rod 27 after the fire is extinguished.

[0020] The implementation principle of the above embodiment is as follows: when the cone 4 moves upward for a certain distance under the action of the traction mechanism 7, the elastic connecting rod 24 moves with the cone 4. When the cone 4 reaches the predetermined position, the elastic connecting rod 24 slides downward into the locking groove 25 under the action of its own elastic force, locking the cone 4 at this position, ensuring that the cone 4 will not accidentally move due to factors such as water flow impact during the water spraying process, ensuring the stable implementation of the fire extinguishing work. After the fire is extinguished, the operator pushes the push handle 29 to make the push rod 27 overcome the elastic force of the reset compression spring 28 and move toward the locking groove 25, pushing the elastic connecting rod 24 out of the locking groove 25. At this time, the cone 4 is reset under the action of the fixed compression spring 6, and the device returns to the initial state, waiting for the next fire detection task. The setting of the locking mechanism 8 improves the stability and reliability of the device during the fire extinguishing process, and also facilitates the reset and maintenance of the device.

[0021] See attached Figure 4 , Figure 8 , Fig. 9An embodiment shown is as follows: one end of the connecting fine branch pipe 30 is connected to the conical acceleration pipe 31, and the other end is connected to the inside of the conical shell 3, which is used to absorb the smoke from the fire scene. The conical acceleration pipe 31 is opened in the conical shell 3, and its shape is conical, which can accelerate the flow of fluid and improve the smoke suction efficiency. The foaming plate 32 is fixed in the conical acceleration pipe 31 and is made of polyurethane material. The foaming pores 33 are evenly distributed on the foaming plate 32, and the pore size is determined according to the flow rate and pressure requirements of the smoke suction. The conical column 34 is fixed on the foaming plate 32 and inserted into the conical acceleration pipe 31 to further optimize the air flow and smoke suction effect. The exhaust pipe 35 is a metal hose, one end of which is connected to the conical acceleration pipe 31, and the other end is fixed on the mounting seat 1 and connected to the outside, which is used to discharge the sucked smoke. The suction control mechanism 36 is installed on the outside of the conical shell 3, corresponding to the conical acceleration pipe 31, and its function is to control the suction timing and flow rate of the smoke.

[0022] The implementation principle of the above embodiment is: when a fire occurs, the air suction control mechanism 36 is started, and the water flow in the water pipe enters the conical acceleration pipe 31 through the connecting fine branch pipe 30. Due to the special shape of the conical acceleration pipe 31, the water flow rate is accelerated. According to the Bernoulli principle, a negative pressure is formed at the foaming plate 32, thereby sucking the fire smoke into the conical shell 3. When the smoke passes through the foaming plate 32, due to the action of the foaming pores 33, the water flow becomes water mist and is fully mixed with the smoke, which can adsorb and filter the smoke, and can cool the smoke and the exhaust pipe 35, which is beneficial to protecting the exhaust pipe 35. At the same time, the setting of the conical column 34 further optimizes the efficiency of air flow and smoke suction, so that the device can quickly and effectively suck the fire smoke, provide a clearer environment for fire detection and fire extinguishing, and improve the fire detection accuracy and fire extinguishing efficiency of the device.

[0023] Refer to the attached Figure 8 An embodiment shown is as follows: the air intake shell 37 is made of aluminum alloy and is fixed on the outside of the conical shell 3. Its shape and size are designed according to the layout of the connecting fine branch pipe 30 and the conical acceleration pipe 31 to ensure close fit with other components. The air inlet hole 38 is opened on the air intake shell 37. The position and size are determined according to the flow rate requirement of smoke suction. The bimetallic strip 39 is made of nickel-chromium alloy with different thermal expansion coefficients and remains flat at room temperature. The air inlet hole 38 is closed to prevent external impurities from entering the interior of the device. When a fire occurs, the temperature of the fire scene rises, and the bimetallic strip 39 is bent and deformed by the heat, so that the air inlet hole 38 is opened, thereby starting the smoke suction mechanism 9. The bimetallic strip 39 is a prior art, and its structure and principle are not described in detail here.

[0024] The implementation principle of the above embodiment is as follows: when the energy storage power station is operating normally, the bimetallic strip 39 is at room temperature, the air inlet 38 is closed, and the smoke suction mechanism 9 is in a stopped state. When a fire occurs and causes the ambient temperature to rise, the bimetallic strip 39 bends and deforms due to the different thermal expansion coefficients of the metals on both sides, so that the air inlet 38 opens, and outside air is able to enter the connecting thin branch pipe 30 and the conical acceleration pipe 31, starting the smoke suction process. Through the thermal sensitivity of the bimetallic strip 39, the automatic control of the smoke suction mechanism 9 is realized, the response speed and accuracy of the device to the fire are improved, and it is ensured that smoke can be sucked out in time at the early stage of the fire, providing strong support for fire detection and subsequent fire fighting.

[0025] Refer to the attached Figure 4 An embodiment shown is as follows: water spray holes 10 are evenly arranged on the circumference of the conical shell 3, and the hole diameter and number are determined according to the coverage range and flow requirements of the water spray fire extinguishing. They are connected to the water spray pipe 2 to ensure that when the conical body 4 moves to open the water spray pipe 2, water can be evenly sprayed out through the water spray holes 10 to extinguish the fire area. The upper sliding shell 40 is located in the conical shell 3 and can slide up and down on the slideway on the inner wall of the conical shell 3. It is made of stainless steel with good corrosion resistance and mechanical strength. The lower guide plate 41 is fixed to the outside of the fixed cavity 18 and is made of metal. Its shape and size match the upper sliding shell 40, and together with the upper sliding shell 40, a water curtain injection port 42 is formed. The upper sliding shell 40 is connected to the sliding frame 21 by welding or bolts to ensure the synchronization of the two during movement.

[0026] The implementation principle of the above embodiment is: when a fire occurs, the sliding frame 21 moves upward under the impetus of the heated and expanded liquid, driving the upper sliding shell 40 to slide upward synchronously, so that the water curtain injection port 42 between the upper sliding shell 40 and the lower guide plate 41 becomes larger. At this time, the water in the water spray pipe 2 is sprayed out through the water spray hole 10, and forms a water curtain barrier through the water curtain injection port 42, covering the fire area, effectively blocking the spread of fire and smoke. As the fire situation changes, the upper sliding shell 40 can adjust the size of the water curtain injection port 42 according to the position of the sliding frame 21, optimize the coverage and strength of the water curtain, and improve the fire extinguishing effect and fire blocking ability.

[0027] The working principle of the device is as follows: when the energy storage power station is operating normally, the device is in a standby state, and each mechanism maintains its initial position. Once a fire occurs, the smoke suction mechanism 9 first senses the temperature change and starts to extract smoke. At the same time, the traction mechanism 7 is triggered to drive the cone 4 to move. On the one hand, the water spray pipe 2 is opened to spray water to extinguish the fire. On the other hand, the locking mechanism 8 is started to lock the cone 4 in the working position to ensure the stability of the fire extinguishing process. The water curtain forming mechanism 11 adjusts the size of the water curtain injection port 42 according to the working state of the device to form a water curtain barrier. After the fire is extinguished, the push handle 29 of the locking mechanism 8 can be pushed to disengage the elastic connecting rod 24 from the locking groove 25. Under the action of the fixed compression spring 6, the cone 4 is reset, and the device returns to its initial state, waiting for the next fire detection and fire extinguishing task, thereby realizing effective detection and efficient fire extinguishing of the energy storage power station fire, and ensuring the safe operation of the energy storage power station.

[0028] The working principle of the device has been explained through the above embodiments. The above embodiments only express several implementation methods of the present invention. The description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A composite fire detection device for an energy storage power station, comprising a mounting seat (1), characterized in that: A water spray pipe (2) is arranged in the middle of the mounting seat (1), a conical shell (3) is provided in the middle of the water spray pipe (2), a conical body (4) capable of closing the water spray pipe (2) is arranged in the conical shell (3), an upper connecting frame (5) is arranged in the conical shell (3), a fixed compression spring (6) is arranged on the upper connecting frame (5), the top end of the fixed compression spring (6) is fixedly connected to the conical body (4), a traction mechanism (7) capable of driving the conical body (4) to slide is arranged in the conical shell (3), a locking mechanism (8) capable of locking the position of the conical body (4) is arranged in the conical shell (3), a plurality of smoke suction mechanisms (9) capable of absorbing smoke from a fire scene are arranged on the circumferential side of the conical shell (3), a water spray hole (10) communicating with the outside is opened on the circumferential side of the conical shell (3), and a water curtain forming mechanism (11) capable of forming a water curtain barrier at the fire scene is arranged at the bottom of the conical shell (3).

2. The composite fire detection device for an energy storage power station according to claim 1, characterized in that: The traction mechanism (7) comprises an armature (12), the armature (12) being arranged at the bottom of the conical body (4), the armature (12) being able to slide up and down on the upper connecting frame (5), the lower side of the conical shell (3) being arranged with a lower connecting frame (13), the lower connecting frame (13) being arranged with an insulating shell (14), the middle of the insulating shell (14) being arranged with an iron core (15), the middle of the insulating shell (14) being provided with an insulating cavity (16), the insulating cavity (16) being provided with a coil (17) wound around the outer side of the iron core (15), the bottom of the lower connecting frame (13) being provided with a fixed cavity (18), the fixed cavity (18) An upper contact piece (19) electrically connected to an electrode end of the coil (17) is arranged at the top of the inner cavity, a power module (20) is arranged on the mounting seat (1), the other electrode end of the coil (17) is electrically connected to an electrode end of the power module (20), a sliding frame (21) that can slide up and down is arranged in the fixed cavity (18), a lower contact piece (22) that can contact the upper contact piece (19) is arranged in the middle of the sliding frame (21), and the lower contact piece (22) is electrically connected to the other electrode end of the power module (20), and a closed cavity (23) is opened at the bottom of the fixed cavity (18), and a liquid that is easy to expand when heated is contained in the closed cavity (23).

3. The composite fire detection device for an energy storage power station according to claim 1, characterized in that: The locking mechanism (8) comprises an elastic connecting rod (24), and the two sides of the bottom of the conical body (4) are respectively provided with elastic connecting rods (24), and the conical shell (3) is provided with locking grooves (25) corresponding to the elastic connecting rods (24). When the elastic connecting rod (24) moves downward, it can slide into the locking groove (25) on its corresponding side. The conical shell (3) is provided with a connecting groove (26) connected with the locking groove (25), and a slidable pushing rod (27) is provided in the connecting groove (26). A return spring (28) is sleeved on the pushing rod (27), and the other end of the return spring (28) is fixed in the connecting groove (26). A push handle (29) is provided on the end of the pushing rod (27) away from the locking groove (25).

4. The composite fire detection device for an energy storage power station according to claim 1, characterized in that: The smoke suction mechanism (9) comprises a connecting fine branch pipe (30), wherein the connecting fine branch pipe (30) is L-shaped, a conical acceleration pipe (31) is provided in the conical shell (3) and can be connected to the connecting fine branch pipe (30), a foaming plate (32) is provided at one end of the conical acceleration pipe (31) away from the connecting fine branch pipe (30), a plurality of foaming pores (33) are provided on the foaming plate (32), a conical column (34) is provided on the foaming plate (32) and is inserted into the conical acceleration pipe (31), an exhaust pipe (35) is provided at one end of the conical acceleration pipe (31) away from the conical shell (3), the other end of the exhaust pipe (35) is fixedly connected to the mounting seat (1) and is connected to the outside, and an air intake control mechanism (36) corresponding to the conical acceleration pipe (31) is provided on the outer side of the conical shell (3).

5. The composite fire detection device for an energy storage power station according to claim 1, characterized in that: The air intake control mechanism (36) comprises an air intake shell (37), an air intake hole (38) is provided on the air intake shell (37), a bimetallic strip (39) for closing the air intake hole (38) is arranged in the air intake shell (37), and the bimetallic strip (39) bends and deforms when the temperature rises, thereby opening the air intake hole (38).

6. The composite fire detection device for an energy storage power station according to claim 2, characterized in that: The water curtain forming mechanism (11) comprises an upper sliding shell (40) which can slide in the conical shell (3); a lower guide plate (41) is arranged on the outer side of the fixed cavity (18); the upper sliding shell (40) is fixedly connected to the sliding frame (21), so that the sliding frame (21) drives the upper sliding shell (40) to slide when moving; an annular water curtain injection port (42) is provided between the upper sliding shell (40) and the lower guide plate (41); and the size of the water curtain injection port (42) is adjusted when the upper sliding shell (40) slides.

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