Immersed new energy automobile fire extinguishing device

Abstract

The invention provides an immersed new energy automobile fire extinguishing device, which belongs to the technical field of new energy automobile fire fighting and comprises a parking platform, a fence mechanism, a lifting driving mechanism and a liquid injection system. The parking platform is used for bearing vehicles and is provided with a liquid injection port in the center and a circular pipeline at the bottom; the enclosure mechanism is similar to the outer contour of a vehicle model and frames the parking platform. Lifting driving mechanisms are arranged on the left side and the right side, close to the tail, of the fence mechanism. The liquid injection system is located outside the fence mechanism, and a semicircular through hole is formed in the bottom of the side, close to the liquid injection system, of the fence mechanism; the liquid injection system is connected with the liquid injection port through a circular pipeline and a semicircular through hole; after the device is started, the lifting driving mechanism lifts the fence mechanism to form a semi-closed fireproof water tank with the parking platform, and the liquid injection system injects fire extinguishing liquid into the water tank to immerse the new energy automobile battery pack, so that the effects of extinguishing open fire and inhibiting the reburning of the battery pack are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle fire protection, and particularly relates to an immersion new energy vehicle fire extinguishing device. Background Art

[0002] Lithium-ion batteries are widely used in the field of new energy vehicles due to their high specific energy, long cycle life and other advantages. However, in recent years, the frequency of fire and explosion incidents of new energy vehicles has increased, and the battery safety problem of new energy vehicles has become an increasingly concerned focus issue. After the battery pack of a new energy vehicle catches fire, jet flames will be generated and a lot of toxic gases will be produced, and the generated flames are difficult to extinguish. Even if they are extinguished, there is a great possibility of re-ignition, which is extremely harmful.

[0003] For new energy vehicle fires, the currently commonly used fire extinguishing equipment includes: portable spray fire extinguishers, trolley-mounted spray fire extinguishers, etc. These fire extinguishing equipment have certain deficiencies:

[0004] 1. The spraying range is small and it is difficult to suppress the spread of vehicle fires: The spraying range of traditional spray fire extinguishers is relatively small, and a significant feature of new energy vehicle fires is the rapid spread of the fire. In new energy vehicle charging stations, new energy vehicle parking lots and other places, once a fire occurs, it is extremely easy to cause the spread of the fire between vehicles. Using traditional spray fire extinguishers often makes it difficult to suppress the spread of the fire between vehicles, and the fire is likely to spread.

[0005] 2. The fire extinguishing is not thorough and the battery pack is prone to re-ignition: Before a lithium battery catches fire, a series of decomposition reactions will occur inside it as the temperature rises. The decomposition reactions will also release a large amount of heat to form a closed loop of "heating - temperature rise - reaction". Eventually, the lithium battery will show an uncontrollable rapid temperature rise phenomenon inside, that is, thermal runaway. After the lithium battery triggers thermal runaway, the internal decomposition reaction will be intensified, generating a large amount of combustible gas, causing the battery spray valve to explode and burn. When the battery pack of a new energy vehicle catches fire, traditional spray fire extinguishers only spray the fire extinguishing liquid on the surface of the battery pack, and it is difficult to continuously cool the battery pack. Even after the fire on the battery surface is extinguished, since the temperature has not completely dropped, the internal decomposition reaction may continue, resulting in the temperature rising again and the battery re-igniting.

[0006] Therefore, compared with the existing technologies and solutions, there are problems that the fire problem of new energy vehicles cannot be effectively solved, uncontrollable fire accidents and possible secondary disasters such as deflagration exist, and an effective solution is urgently needed. Summary of the Invention

[0007] The object of the present invention is to provide an immersion-type new energy vehicle fire extinguishing device, characterized in that it comprises a parking platform placed above a parking space, a barrier mechanism surrounding the parking platform, a lifting and driving mechanism for driving the barrier mechanism to lift and lower, and a liquid injection system arranged at the periphery of the barrier mechanism;

[0008] A liquid injection port connected to the liquid injection system is provided at the center of the parking platform;

[0009] When the enclosure mechanism is not raised, the horizontal height of the enclosure mechanism is the same as the horizontal height of the parking platform; when the enclosure mechanism is driven to rise by the lifting drive device, the liquid injection system injects liquid into the surface of the surrounded parking platform to achieve fire extinguishing.

[0010] Furthermore, the parking platform also includes an internal pipe and a clip, one end of the pipe is connected to the injection port, and the other end is connected to the outside for connecting with the injection system; the clip is arranged on the four sides of the parking platform for fixing the bottom end of the enclosure.

[0011] Further, the enclosure mechanism includes an enclosure frame, a fireproof cloth connection slot, a fireproof cloth, a fireproof cloth storage slot and a connection block;

[0012] The connecting blocks are fixed to the back sides of the two opposite sides of the enclosure frame and are connected to the lifting drive mechanism;

[0013] The fireproof cloth connection groove and the fireproof cloth storage groove are both arranged inside the enclosure frame. The top of the fireproof cloth is connected to the enclosure frame through the fireproof cloth connection groove, and the bottom of the fireproof cloth is fixed to the parking platform through a buckle. The folded fireproof cloth is placed in the fireproof cloth storage groove;

[0014] When the lifting drive mechanism drives the connecting block to rise, it also drives the enclosure frame to rise, thereby unfolding the fireproof cloth, which together with the parking platform forms a semi-enclosed fireproof water pool with only the top open. Fire is extinguished by injecting water into the fireproof water pool through the injection system.

[0015] Furthermore, the lifting drive mechanism includes a guide rail, a hydraulic rod, an oil pipeline, an oil tank and an oil pump;

[0016] The hydraulic rod is slidably connected to the guide rail, and the oil pump inputs the hydraulic oil in the oil tank into the hydraulic rod or extracts the hydraulic oil from the hydraulic rod through the oil pipe, so as to realize the rise and fall of the hydraulic rod on the guide rail;

[0017] The hydraulic rod is fixed to the other side of the connecting block away from the enclosure frame.

[0018] Furthermore, the injection system includes a pump, a liquid storage tank and an infusion hose. One end of the infusion hose is connected to the liquid storage tank through the pump, and the other end passes through a semicircular through hole preset in the enclosure frame and a pipeline inside the parking platform to be connected to the injection port.

[0019] Further, it also includes a parking space ramp, which is arranged on the other side of the enclosure mechanism and is oppositely arranged to the parking platform.

[0020] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in:

[0021] 1. Good isolation effect, which can effectively inhibit the spread of fire:

[0022] When a new energy vehicle catches fire, the flame generally first appears at the bottom of the vehicle chassis and then spreads from bottom to top and from back to front. At the same time, jet flames will be ejected. After the enclosure mechanism of the present invention is lifted by the lifting drive mechanism, it can form a barrier around the on-fire new energy vehicle, preventing the vehicle flame from spreading to the surrounding vehicles and the environment, and achieving a good isolation effect.

[0023] 2. Good fire extinguishing effect, which can effectively inhibit the re-ignition of the battery pack:

[0024] When the enclosure frame is lifted by the lifting drive mechanism, the fireproof cloth unfolds and forms a fireproof water pool with the parking platform. At this time, the liquid injection system injects the fire extinguishing liquid into the fireproof water pool through the liquid injection port, and the fire extinguishing liquid will submerge the battery pack of the new energy vehicle, continuously cooling the on-fire battery pack, achieving the effect of extinguishing the open fire of the battery, inhibiting the internal heat spread of the battery pack, and preventing the battery pack from re-igniting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an isometric structural schematic diagram before the enclosure frame of the present invention patent is lifted.

[0026] Figure 2 It is an isometric structural schematic diagram after the enclosure frame of the present invention patent is lifted.

[0027] Figure 3 It is a top view structural schematic diagram of the parking platform of the present invention patent.

[0028] Figure 4 It is a sectional view along the A-A section of the parking platform of the present invention patent.

[0029] Figure 5 It is a top view structural schematic diagram of the enclosure mechanism of the present invention patent.

[0030] Figure 6 It is a sectional view along the B-B section of the enclosure mechanism of the present invention patent.

[0031] Figure 7 It is a schematic diagram of the storage of the fireproof cloth when the enclosure frame of the present invention patent is not lifted.

[0032] Figure 8 It is a front view structural schematic diagram of the lifting drive mechanism of the present invention patent.

[0033] Figure 9This is the front view structural schematic diagram of the liquid injection system of the invention patent.

[0034] Figure 10 This is the schematic diagram of the invention patent deployed at the charging position of a new energy vehicle.

[0035] Figure 11 This is the schematic diagram after the invention patent is started at the charging position of a new energy vehicle.

[0036] Among them;

[0037] 1. Parking space ramp;

[0038] 2. Parking platform; 3. Liquid injection port; 4. Circular pipeline; 5. Buckle;

[0039] 6. Enclosure mechanism; 7. Enclosure frame; 8. Fireproof cloth; 9. Fireproof cloth connection groove; 10. Fireproof cloth storage groove; 11. Connection block; 12. Semi-circular through hole;

[0040] 13. Lifting drive mechanism; 14. Guide rail; 15. Hydraulic rod; 16. Oil pipeline; 17. Oil tank; 18. Oil pump;

[0041] 19. Liquid injection system; 20. Water pump; 21. Liquid storage tank; 22. Liquid infusion hose;

[0042] 23. Charging pile. Specific implementation mode

[0043] The following will describe a submerged new energy vehicle fire extinguishing device of the present invention in more detail with reference to the schematic diagram, in which the preferred embodiments of the present invention are shown. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present invention.

[0044] As Figures 1-4 shown, the parking platform 2 can be placed on the existing parking space without damage without civil engineering transformation of the existing parking space, playing the role of carrying the vehicle. A liquid injection port 3 is provided at the center position of the parking platform 2, and a circular pipeline 4 is provided at the lower end of the liquid injection port 3, which extends to the edge of the parking platform 2 to guide the liquid injection of the liquid injection system 19. The parking space in this embodiment is a charging space for new energy vehicles. An enclosure mechanism 6, a lifting drive mechanism 13 and a liquid injection system 19 are successively installed around the parking platform. A parking space ramp 1 is provided in front of the enclosure mechanism 6 to facilitate the new energy vehicle to drive onto the parking platform 2 to park the vehicle. The above-mentioned parts are all installed above the ground and will not affect the storage and charging of new energy vehicles before the device is started. After the device is started, the enclosure mechanism 6 can quickly rise to form a semi-closed water pool with the parking platform 2, and the liquid injection system 19 quickly injects the fire extinguishing liquid into the semi-closed water pool to achieve the effect of emergency fire protection.

[0045] Reference Figure 1 、 5 -7, the enclosure mechanism 6 surrounds the parking platform 2. Before being lifted by the lifting drive mechanism 13, its height is basically the same as that of the parking platform 2. The enclosure mechanism 6 includes an enclosure frame 7, a fireproof cloth 8, and a connecting block 11. One end of the fireproof cloth 8 is connected to the enclosure frame 7 through a fireproof cloth connection groove 9, and the other end is connected to a buckle 5 at the bottom of the parking platform 2. The middle part is stacked in the fireproof cloth storage groove 10. Stacking the fireproof cloth 8 in the groove does not affect the entry and exit of vehicles. The method of fixing both ends can effectively improve the reliability of the enclosure mechanism 6. When a new energy vehicle parked on the parking platform 2 shows signs of fire, the fireproof cloth 8 can quickly be stretched from the folded state to the extended state to form a fireproof pool with the parking platform 2. This semi-closed fireproof pool can form a barrier around the vehicle on fire, preventing the vehicle fire from spreading to surrounding vehicles and the environment, avoiding the expansion of the fire, and reducing the fire hazard. The connecting blocks 11 are arranged on the left and right sides near the tail of the enclosure frame 7 and are connected to the lifting drive mechanism 13.

[0046] Reference Figure 2 、 Figure 5 and Figure 8 , the lifting drive mechanism 13 includes a guide rail 14, a hydraulic rod 15, an oil delivery pipe 16, an oil tank 17, and an oil pump 18. The lifting drive mechanism 13 adopts a hydraulic drive method. The hydraulic rod 15 is connected to the connecting block 11. The oil pump 18 inputs the hydraulic oil in the oil tank 17 into the hydraulic rod 15 through the oil delivery pipe 16 to push the hydraulic rod 15 upward, and vice versa to move downward. The up and down movement of the hydraulic rod 15 will drive the connecting block 11 to move up and down along the guide rail 14, thereby driving the enclosure frame 7 to move up and down. Since hydraulic drive has the advantages of flexible control, fast response speed, and reliable operation, using hydraulic drive can enable the lifting drive mechanism 13 to quickly and accurately push the enclosure frame 7 to the expected position, quickly changing the device from the idle state to the fire-fighting state. At the same time, the connecting block 11 is welded to the enclosure frame 7 and it cooperates with the guide rail 14 in the form of a groove, with a very high degree of fit. This makes the lifting drive mechanism 13 more stable and reliable when pushing the enclosure frame 7.

[0047] Reference Figure 2 and Figure 9, The liquid injection system 19 is located outside the enclosure mechanism and includes a pump 20, a liquid storage tank 21, and an infusion hose 22. One end of the infusion hose 22 is connected to the pump 20, and the other end passes through a semicircular through-hole 12 preset in the enclosure frame 7 and is connected to the liquid injection port 3 along the circular pipeline 4. The infusion hose 22 has the advantages of being corrosion-resistant, not easily damaged, and having good flexibility. It can stably transport the fire extinguishing liquid and cooperate with the semi-closed fire pool to gradually accumulate the fire extinguishing liquid in the semi-closed fire pool. One end of the pump 20 is connected to the infusion hose 22, and the other end is connected to the liquid storage tank 21. It has high energy efficiency and low noise, and can quietly and quickly transport the fire extinguishing liquid from the liquid storage tank 21 to the semi-closed pool through the infusion hose 22. The liquid storage tank 21 is used to store the fire extinguishing liquid, which is made of materials for lithium battery fires. It has a good fire extinguishing effect, can quickly extinguish open flames, has a high specific heat capacity, good heat absorption ability, can continuously cool the battery pack, and also has good insulation performance and will not cause secondary damage to new energy vehicles.

[0048] Reference Figure 10 , The new energy vehicle is parked on the parking platform 2 for storage or charged through the charging pile 23.

[0049] Reference Figure 11 , When the new energy vehicle smokes or catches fire, start the lifting drive mechanism 13 to raise the enclosure frame 7. The enclosure frame 7 and the parking platform 2 form a semi-closed pool with an open upper end, isolating the burning new energy vehicle from the surrounding environment. Then start the liquid injection system 19 to inject the fire extinguishing liquid into the semi-closed pool for immersion fire extinguishing of the new energy vehicle. By soaking and cooling the burning battery pack for a long time, finally achieve the good effect of extinguishing the battery open flame, suppressing the internal heat spread of the battery pack and the battery pack no longer reigniting.

[0050] The above is only the preferred embodiment of the present invention and does not impose any limitation on the present invention. Any person skilled in the art, within the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification and other changes to the technical solution and technical content disclosed by the present invention, which are all within the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. An immersion-type new energy vehicle fire extinguishing device, characterized in that: It includes a parking platform placed above the parking space, a fencing mechanism surrounding the parking platform, a lifting drive mechanism for driving the fencing mechanism to rise and fall, and a liquid injection system arranged outside the fencing mechanism; A liquid injection port connected to the liquid injection system is provided at the center of the parking platform; When the enclosure mechanism is not raised, the horizontal height of the enclosure mechanism is the same as the horizontal height of the parking platform; when the enclosure mechanism is driven to rise by the lifting drive device, the liquid injection system injects liquid into the surface of the surrounded parking platform to achieve fire extinguishing.

2. The submerged new energy vehicle fire extinguishing device according to claim 1 is characterized in that: The parking platform also includes an internal pipe and a clip, one end of the pipe is connected to the injection port, and the other end is connected to the outside for connecting with the injection system; the clip is arranged on the four sides of the parking platform for fixing the bottom end of the enclosure.

3. The immersion type new energy vehicle fire extinguishing device according to claim 1 is characterized in that: The enclosure mechanism includes an enclosure frame, a fireproof cloth connecting groove, a fireproof cloth, a fireproof cloth storage groove and a connecting block; The connecting blocks are fixed to the back sides of the two opposite sides of the enclosure frame and are connected to the lifting drive mechanism; The fireproof cloth connection groove and the fireproof cloth storage groove are both arranged inside the enclosure frame, the top end of the fireproof cloth is connected to the enclosure frame through the fireproof cloth connection groove, the bottom end of the fireproof cloth is fixed to the parking platform through a buckle, and the folded fireproof cloth is placed in the fireproof cloth storage groove; When the lifting drive mechanism drives the connecting block to rise, it also drives the enclosure frame to rise, thereby unfolding the fireproof cloth, which together with the parking platform forms a semi-enclosed fireproof water pool with only the top open. Fire is extinguished by injecting water into the fireproof water pool through the injection system.

4. The submerged new energy vehicle fire extinguishing device according to claim 1 is characterized in that: The lifting drive mechanism comprises a guide rail, a hydraulic rod, an oil pipeline, an oil tank and an oil pump; The hydraulic rod is slidably connected to the guide rail, and the oil pump inputs the hydraulic oil in the oil tank into the hydraulic rod or extracts the hydraulic oil from the hydraulic rod through the oil pipe, so as to realize the rise and fall of the hydraulic rod on the guide rail; The hydraulic rod is fixed to the other side of the connecting block away from the enclosure frame.

5. The submerged new energy vehicle fire extinguishing device according to claim 1 is characterized in that: The injection system includes a pump, a liquid storage tank and an infusion hose. One end of the infusion hose is connected to the liquid storage tank through the pump, and the other end passes through a semicircular through hole preset in the enclosure frame and a pipeline to be connected to the injection port.

6. The submerged new energy vehicle fire extinguishing device according to claim 1 is characterized in that: It also includes a parking ramp, which is arranged on the other side of the enclosure mechanism and is opposite to the parking platform.

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