A battery storage protection fire water tank

Abstract

The present invention relates to the technical field of battery fire water tanks, and in particular to a battery storage fire protection water tank, comprising a water tank body and a battery body. The lower end of the battery body is provided with a lifting guide rail located in the middle of the water tank body. A sealing cover is provided on the top of the water tank body. A suspended bracket is provided on the outside of the water tank body. An inner box is provided inside the water tank body. A convex cover is provided on the top of the inner box. A decompression chamber is provided between the water tank body and the inner box. A top cover is provided on the top of the battery body to prevent bubbles and liquid from overflowing in the water tank. The decompression chamber is connected to the exterior of the water tank body. An activated carbon filling layer is provided on the lower side of the decompression chamber, and a filter plate is provided on the lower side of the activated carbon filling layer. This battery storage fire water tank can prevent bubbles and liquid from overflowing, increase the safety of gas discharge, and improve the protective effect of the fire water tank.

Description

Technical Field

[0001] The present invention relates to the field of battery fire water tanks, in particular to a battery storage protection fire water tank. Background Art

[0002] As the global energy transition deepens, the new energy vehicle industry is booming. The production and demand for power lithium batteries, the "heart" of electric vehicles, have increased dramatically, leading to a growing demand for battery transportation. Currently, batteries are transported by air, sea, road, and rail, with different modes of transportation used depending on the type of battery being transported. During transportation, to provide emergency response in the event of a battery pack fire during stacking, installation, and operation at the factory, a fire water tank is installed underneath the battery pack as a support base. By dropping the battery pack into the tank, the liquid in the tank will envelop the battery pack, controlling the spread of the fire and preventing further casualties and property damage.

[0003] Currently, if a battery pack catches fire, the batteries will burn, generating a large amount of smoke and heat. Fire water tanks are often open at the top. When the burning battery is lowered into the tank to extinguish the fire, the liquid in the fire tank is affected by the combustion gases and heat ejected from the battery, causing the liquid to boil, bubbles to gush outward, and liquid to splash outward, posing a threat to other stored batteries and causing the fire to spread. To address these issues, it is necessary to design a battery storage protective fire water tank that can degas the bubbles, increase the tank's protection, and safely discharge the gas. Summary of the Invention

[0004] The object of the present invention is to provide a battery storage protection fire water tank to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A battery storage protection fire water tank includes a water tank body and a battery body. The lower end of the battery body is provided with a lifting guide rail located in the middle of the water tank body. The top of the water tank body is provided with a sealing cover. The outside of the water tank body is provided with a suspended bracket. The interior of the water tank body is provided with an inner box. The top of the inner box is provided with a convex cover. A decompression chamber is provided between the water tank body and the inner box. The top of the battery body is provided with a top cover for anti-overflow sealing of bubbles and liquids in the water tank.

[0007] Preferably, the decompression chamber is communicated with the outside of the water tank body, an activated carbon filling layer is provided on the lower side of the interior of the decompression chamber, and a filter plate is provided on the lower side of the activated carbon filling layer.

[0008] Preferably, locking structures are provided on both sides of the top of the sealing cover, and the sealing cover is limitedly connected to the battery body through the locking structure. A sealing ring is provided on the lower side of the top cover and fits with the sealing cover for sealing the top of the water tank body and the battery body.

[0009] Preferably, the convex cover includes a gently sloping end and a steep slope end, the gently sloping end is arranged close to the battery body, an upwardly inclined anti-overflow sheet is provided on the top of the gently sloping end, and an exhaust port is opened in the middle of the steep slope end for eliminating upward bubbles.

[0010] Preferably, it also includes a detection component and a control system, the detection component includes an infrared thermal imaging camera and a smoke detector located on the upper side of the water tank body and a magnetic thermocouple arranged on the top of the battery body, and a wind speed detection component and a gas detection component are arranged in the exhaust port, and the detection component, wind speed detection component and gas detection component are all connected to the control system.

[0011] Preferably, an explosion-proof box is provided at the external upper end of the water tank body, and an explosion-proof one-way door is rotatably provided on one side of the explosion-proof box close to the water tank body, and the explosion-proof one-way door passes through the explosion-proof box and the water tank body, and a pressure relief box is provided on the other side of the explosion-proof box.

[0012] Preferably, a pressure relief door is rotatably provided at the lower end of the outer side of the pressure relief box, the pressure relief door is opposite to the explosion-proof one-way door, a venetian blind is provided on the side of the pressure relief door close to the water tank body, and the height of the pressure relief door is lower than that of the explosion-proof one-way door.

[0013] Preferably, an arc-shaped explosion-proof end is provided at the top of the explosion-proof one-way door, and a baffle is provided at the lower end of the explosion-proof one-way door, and the width of the baffle is the same as the inner width of the decompression chamber, which is used to seal the lower side of the decompression chamber.

[0014] Preferably, a limiting top rod is provided through the upper side of the explosion-proof one-way door in the explosion-proof box, and a spring and a rubber pad are provided on the top of the limiting top rod in sequence. A blower is provided through the top of the explosion-proof box close to the explosion-proof one-way door, and an inert gas tank is provided through the lower side of the explosion-proof box for internal explosion-proof of the explosion-proof box.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present invention, the water tank is suspended, and the inner box and the convex cover are used inside the water tank. A decompression chamber can be set in the water tank to defoam the bubbles generated during battery fire fighting. The top cover is used to seal the upper opening of the water tank to prevent bubbles from surging and liquid from splashing, thereby increasing the safety of the fire water tank and improving the protection effect of the fire water tank.

[0017] 2. The convex cover of the device of the present invention adopts a downward-opening triangular structure, which can quickly separate the rising bubbles from the liquid and pass them through the exhaust port to the lower side of the water tank to achieve gas discharge; at the same time, it reduces the pressure of the gas in the water tank, facilitating the safe discharge of gas during battery fire protection. The interior of the water tank is subjected to a first-level explosion-proof treatment, and then an activated carbon filling layer and filter plate are used to purify the exhaust gas to reduce gas pollution;

[0018] 3. In the present invention, by using an explosion-proof box on the water tank, the high-pressure gas in the decompression chamber can be passed into the explosion-proof box to reduce the gas pressure and achieve secondary explosion protection; and a blower is used to introduce external gas, and an inert gas tank is used to introduce inert gas, which is convenient for the explosion-proof box to reduce the pressure or combustible gas concentration in the explosion-proof box according to the exhaust gas, comprehensively treat the gas in the bubbles, and increase the explosion-proof strength of the explosion-proof box. Finally, a pressure relief box is used to discharge the neutralized gas to the outside, reducing the risk of water tank fire fighting and improving the protection effect of the water tank on battery fire fighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the water tank main body in the present invention;

[0021] Figure 3 It is a structural diagram of the water tank and inner box in the present invention;

[0022] Figure 4 It is a partial structural cross-sectional view of the water tank, the battery body and the inner box in the present invention;

[0023] Figure 5 for Figure 4 A magnified view of the structure of middle A;

[0024] Figure 6 It is a partial structural cross-sectional view of the explosion-proof box and the box body in the present invention;

[0025] Figure 7 for Figure 6 A magnified view of the structure of middle B;

[0026] Figure 8 This is a diagram of the explosion-proof one-way door and the water tank body in the open state of the present invention;

[0027] Figure 9 It is a partial structural cross-sectional view of the explosion-proof box in the present invention;

[0028] In the figure: 1. Water tank body; 2. Sealing cover; 3. Battery body; 4. Suspension bracket; 5. Decompression chamber; 6. Activated carbon filling layer; 7. Filter plate; 8. Top cover; 9. Sealing ring; 10. Inner box; 11. Convex cover; 12. Gentle slope end; 13. Anti-overflow sheet; 14. Steep slope end; 15. Exhaust port; 16. Wind speed detection component; 17. Gas detection component; 18. Lifting guide rail; 19. Locking structure; 20. Explosion-proof box; 21. Explosion-proof one-way door; 22. Limiting push rod; 23. Rubber pad; 24. Blower; 26. Inert gas tank; 27. Pressure relief box; 28. Pressure relief door; 29. ​​Arc-shaped explosion-proof end; 30. Baffle. DETAILED DESCRIPTION

[0029] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] See also Figure 1-9 , the present invention provides a technical solution:

[0031] A fire protection water tank for battery storage. Currently, when batteries are stacked, installed, and operated in a factory, in order to deal with the battery pack that accidentally catches fire, a lifting guide rail 18 located under the battery is used to drop the battery body 3 into the water tank, and a sealing cover 2 on the top is used to control the spread of the fire. In order to prevent the burning battery from generating more bubbles in the water tank, a suspension bracket 4 can be set on the outside of the water tank body 1, the water tank body 1 can be lifted off the ground and suspended on the suspension bracket 4 for use, and then an inner box 10 can be set inside the water tank body 1. The inner box 10 is a storage structure for the water tank liquid. The outside of the water tank body 1 can be provided with a water injection port, a transparent tube and a drain valve that are connected to the inner box 10. The water injection port is used for adding liquid, the transparent tube is used for controlling the water level of the inner box 10, and the drain valve is used for discharging liquid. Among them, the lifting guide rail 18 is vertically arranged at the corners around the inner box 10. By applying the existing linear drive technology of the guide rail driven by the motor, the lifting guide rail 18 can drop the battery body 3 into the inner box 10, and the top cover 8 set on the top of the battery body 3 is made to fit with the sealing cover 2 to seal the top opening of the water tank body 1, and the battery body 3 is subjected to fire treatment to prevent the overflow of the upwelling bubbles and the splashing of the liquid. Next, a convex cover 11 can be set on the top of the inner box 10. The edges of the convex cover 11 are retracted inward, leaving a gap between the side of the water tank body 1. The gap will prevent bubbles from overflowing and facilitate the discharge of separated gases. Then a decompression chamber 5 is set between the water tank body 1 and the inner box 10. The discharged gas can be introduced into the decompression chamber 5 and discharged from the water tank body 1 after the pressure is reduced, thereby completing the defoaming and pressure reduction inside the water tank and increasing the safety of the fire water tank.

[0032] Among them, it is worth mentioning that Figure 4As shown, in some embodiments, an opening is opened at the lower end of the decompression chamber 5, and the decompression chamber 5 is connected with the outside of the water tank body 1, so that the gas in the decompression chamber 5 can be discharged outward through the suspended bracket 4, which is used for the first-level explosion protection of the gas; then, an activated carbon filling layer 6 can be set on the lower side of the interior of the decompression chamber 5, and a filter plate 7 can be set on the lower side of the activated carbon filling layer 6, and the exhaust gas can be treated by physical filtration to reduce air pollution.

[0033] Secondly, if Figure 2 As shown, when the battery body 3 is in normal use, the locking structures 19 provided on both sides of the top of the sealing cover 2 are used. By using the locking structures 19 to push the sealing cover 2 toward the battery body 3, the battery body 3 can be limited by the hooks on the outside of the battery body 3, thereby limiting the battery body 3 above the water tank. When the battery body 3 is being treated for fire, the top cover 8 can be fitted with the sealing cover 2, and the sealing ring 9 below the top cover 8 can be used to close the upper side of the water tank body 1, thereby achieving a seal between the water tank body 1 and the battery body 3.

[0034] When the fire fighting work is carried out in the fire water tank, due to the bubbles in the process of rising, the surfaces with different slopes have different crushing and guiding effects on them. In order to better eliminate the bubbles, such as Figure 4 and 5 As shown, the convex cover 11 can be set as a triangular cover structure with a gentle slope end 12 and a steep slope end 14, and the gentle slope end 12 is set close to the battery body 3, and then an upwardly inclined anti-overflow sheet 13 is set on the top of the gentle slope end 12 to increase the anti-overflow strength between the convex cover 11 and the battery body 3. An exhaust port 15 is opened in the middle of the steep slope end 14, and the opening of the exhaust port 15 is opposite to the water tank body. After the upwelling gas passes through the gentle slope end 12 and the steep slope end 14 for defoaming, it is discharged from the anti-overflow sheet 13 and the exhaust port 15, thereby completing the elimination of the upwelling bubbles.

[0035] like Figure 2 and 9 As shown, in order to prevent explosions during firefighting, in some embodiments, an explosion-proof box 20 can be set at the upper end of the outer side of the water tank body 1 to transfer the excessive pressure gas in the decompression chamber 5, and use the explosion-proof box 20 to reduce pressure and prevent explosions. Among them, the explosion-proof box 20 will be rotated to set an explosion-proof one-way door 21 on the side close to the water tank body 1. An elastic member is set between the explosion-proof one-way door 21 and the explosion-proof box 20 to elastically connect, so as to facilitate the downward discharge of low-pressure gas in the decompression chamber 5 and facilitate the through connection between the explosion-proof one-way door 21 and the decompression chamber 5. When the pressure in the decompression chamber 5 is too high, the gas can push open the explosion-proof one-way door 21 and guide the gas into the explosion-proof box 20; when the explosion-proof one-way door 21 rotates, the explosion-proof one-way door 21 will turn to the explosion-proof box 20, and pass through the explosion-proof box 20 and the water tank body 1; and the explosion-proof gas can be discharged to the outside using a pressure relief box 27 set on the other side of the explosion-proof box 20, reducing the pressure in the explosion-proof box 20.

[0036] Among them, it is worth mentioning that Figure 9 As shown, in some embodiments, a pressure relief door 28 is pivotally mounted on the lower outer side of the pressure relief box 27, and is positioned opposite the explosion-proof one-way door 21. This allows high-pressure gas to enter the explosion-proof box 20 from the upper side and then be discharged from the other end. Furthermore, a venetian blind is used on the side of the pressure relief door 28 near the water tank body 1, and the height of the pressure relief door 28 is set lower than the explosion-proof one-way door 21, facilitating the discharge of gas from the explosion-proof box 20 and providing explosion-proof and pressure-reducing measures.

[0037] Secondly, in order to facilitate the explosion-proof treatment of high-pressure gas, such as Figure 6 and 8 As shown, a curved explosion-proof end 29 can be set at the top of the explosion-proof one-way door 21. The curved explosion-proof end 29 uses insulating material to avoid electric sparks generated by friction between the explosion-proof one-way door 21 and the explosion-proof box 20, which may cause ignition of combustible gas in the explosion-proof box 20, thereby improving the safety of use of the explosion-proof box 20; then a baffle 30 can be set at the lower end of the explosion-proof one-way door 21, and the width of the baffle 30 can be set to the same size as the inner width of the decompression chamber 5. When the explosion-proof one-way door 21 is flipped toward the explosion-proof box 20, the baffle 30 will seal the lower side of the decompression chamber 5, storing the high-pressure gas in the explosion-proof box 20, and using the explosion-proof box 20 for sealing and explosion-proofing.

[0038] In order to facilitate the use of the explosion-proof one-way door 21, Figure 6 and 7 As shown, a limiting top rod 22 is provided on the upper side of the explosion-proof one-way door 21 in the explosion-proof box 20, and the limiting top rod 22 is provided through the explosion-proof box 20, and then a spring and a rubber pad 23 are provided on the top of the limiting top rod 22 from bottom to top, and then a blower 24 is provided on the top of the explosion-proof box 20 near the side of the explosion-proof one-way door 21. When the gas in the decompression chamber 5 pushes open the explosion-proof one-way door 21, the spring is compressed and presses the rubber pad 23, driving the limiting top rod 22 to separate from the explosion-proof one-way door 21, and the explosion-proof one-way door 21 is turned in. The explosion-proof box 20 allows high-pressure gas to enter the explosion-proof box 20; the gas can be extracted from the explosion-proof box 20 or external gas can be introduced into the explosion-proof box 20 by a blower 24 arranged on the upper side of the end of the explosion-proof box 20 close to the water tank body 1 to reduce the air pressure in the explosion-proof box 20 and neutralize the introduced gas. The inert gas tank 26 is used to pass through the lower side of the explosion-proof box 20. When the combustible material content of the introduced gas is too high, the inert gas tank 26 can pass inert gas into the explosion-proof box 20 to neutralize the gas, thereby realizing internal explosion-proof of the explosion-proof box 20.

[0039] In addition, when the fire water tank is in use, a detection component will be set to detect the temperature of the battery body 3 and whether there is combustion in real time, such as Figure 1As shown, the detection assembly includes an infrared thermal imaging camera mounted on a rod above the battery body 3, a smoke detector mounted on a rotating rod directly above the water tank body 1, and a magnetic thermocouple mounted on top of the battery body 3. Using existing infrared heat detection technology, the infrared thermal imaging camera can detect the infrared heat status of the battery body 3; using existing sensor-based smoke detection technology, the smoke detector can detect whether the battery is spontaneously igniting and producing smoke; and the magnetic thermocouple can detect the surface temperature of the battery body 3. The detection data from these detection assemblies is transmitted to the control system and analyzed with the unlocking conditions of the locking mechanism 19 in the control system. This control mechanism controls the locking mechanism 19 to restrict the battery body 3, thereby achieving fire protection for the battery body 3. The unlocking conditions for the locking mechanism 19 are: a thermal imaging temperature value ≥ 50°C, a smoke concentration value ≥ 0.1%, and a thermocouple temperature value ≥ 50°C. Meeting any two of these three conditions triggers the unlocking mechanism to unlock, thus enabling fire protection for the battery body 3. At the same time, a wind speed detection element 16 with a wind speed sensor and a gas detection element 17 with a combustible gas concentration detection can also be set in the exhaust port 15. The wind speed sensor can be used to grasp the gas exhaust wind speed at the exhaust port 15, and the gas detection element 17 can be used to detect the combustible gas concentration of the gas. By connecting the wind speed detection element 16 and the gas detection element 17 to the control system, the opening value of the blower 24 and the inert gas can be set in the control system. Among them, when the wind speed sensor detects a value exceeding 10 times / H, the blower 24 can be turned on. Turn on the blower 24 to extract the gas in the explosion-proof box 20 to the outside and reduce the air pressure in the explosion-proof box 20; when the gas detection component 17 detects that the combustible material content of the gas is greater than 5%, the blower 24 can be used to introduce external gas into the explosion-proof box 20, and the inert gas tank 26 can be opened to neutralize the combustible gas in the explosion-proof box 20 to reduce the explosion value of the gas. By intelligently controlling the start and stop of the blower 24 and the opening degree of the valve of the inert gas tank 26, the gas pressure introduced into the explosion-proof box 20 is adjusted and the concentration of the combustible gas is neutralized.

[0040] Working principle of the present invention:

[0041] Step 1: During the process of stacking, installing and operating the battery pack in the factory, if the battery body 3 accidentally catches fire, any two of the thermal imaging temperature value detected by the infrared thermal imaging camera, the smoke concentration value detected by the smoke detector, and the thermocouple temperature value detected by the magnetic thermocouple are greater than the unlocking condition of the locking structure 19 of the control system, which can trigger the locking structure 19 to unlock. The lifting guide rail 18 is used to drop the battery body 3 into the inner box 10, and the top cover 8 on the top of the battery body 3 is fitted with the sealing cover 2. The sealing ring 9 seals the top of the water tank, effectively preventing the overflow of upwelling bubbles and liquid splashing generated during the fire extinguishing process. The spread of the fire is thus controlled, and the battery body 3 is treated with firefighting treatment using the liquid in the inner box 10.

[0042] Step 2: Since burning batteries generate a large number of bubbles in the water tank liquid, the rising bubbles are initially blocked by the convex cover 11, preventing them from escaping directly. The gas is then discharged through the gap between the convex cover 11 and the battery body 3. Furthermore, because the convex cover 11 is designed as a triangular cover with a gently sloping end 12 and a steeply sloping end 14, the bubbles, as they rise, contact surfaces of different slopes, breaking and guiding them due to the varying surface forces. The separated liquid flows back into the inner box 10, while the separated gas flows through the exhaust port 15 to the decompression chamber 5, completing the defoaming process.

[0043] In step three, a portion of the gas after defoaming will enter the decompression chamber 5 provided between the water tank body 1 and the inner box 10 for decompression treatment. In some embodiments, an opening is provided at the lower end of the decompression chamber 5 to communicate with the outside of the water tank body 1, and the gas is conveniently discharged outward with the help of a suspended bracket 4, thereby achieving a first-level explosion-proof of the gas. In addition, an activated carbon filling layer 6 and a filter plate 7 can be provided on the lower side of the decompression chamber 5, and the exhaust gas can be purified by a physical filtration method to reduce air pollution. When the pressure in the decompression chamber 5 is too high, the gas can push open the limiting push rod 22, and push open the explosion-proof one-way door 21 on the side of the explosion-proof box 20 close to the water tank body 1, and the gas enters the explosion-proof box 20 for secondary decompression. By using the arc-shaped explosion-proof end 29 at the top of the explosion-proof one-way door 21, and the use of insulating materials for the arc-shaped explosion-proof end 29, friction-generated electric sparks that ignite the combustible gas in the explosion-proof box 20 can be avoided. The baffle 30 provided at its lower end has the same width as the inner width of the decompression chamber 5. When the explosion-proof one-way door 21 is flipped toward the explosion-proof box 20, the baffle 30 closes the lower side of the decompression chamber 5 and stores the high-pressure gas in the explosion-proof box 20, making it convenient to seal and explode the explosion-proof box 20.

[0044] Step 4: By using the wind speed detection element 16 and the gas detection element 17 in the exhaust port 15, the wind speed of the exhaust gas and the content of the combustible position in the gas can be detected. When the detected gas wind speed is greater than the opening value of the blower 24 in the control system, the blower 24 can be used to extract the gas in the explosion-proof box 20 to the outside, reducing the pressure in the explosion-proof box 20, and the pressure relief door 28 in the pressure relief box 27 can be opened to further prevent explosion and reduce pressure. When the detection value of the gas detection element 17 is greater than the maximum value set in the control system, the blower 24 can be used to pass external gas into the explosion-proof box 20, and then the inert gas tank 26 can be opened to pass inert gas into the explosion-proof box 20 to neutralize the combustible gas and reduce the gas explosion value. By intelligently controlling the start and stop of the blower 24 and the opening degree of the valve of the inert gas tank 26, the gas pressure and combustible gas concentration in the explosion-proof box 20 can be adjusted to ensure the safety of the entire fire water tank during the firefighting process.

[0045] The basic principles, main features, and advantages of the present invention are shown and described above. The present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery storage fire protection water tank, comprising a water tank body (1) and a battery body (3), wherein the lower end of the battery body (3) is provided with a lifting guide rail (18) located in the middle of the water tank body (1), and the top of the water tank body (1) is provided with a sealing cover (2), characterized in that: A suspended bracket (4) is provided on the outside of the water tank body (1), an inner box (10) is provided inside the water tank body (1), a convex cover (11) is provided on the top of the inner box (10), a decompression chamber (5) is provided between the water tank body (1) and the inner box (10), and a top cover (8) is provided on the top of the battery body (3) for preventing bubbles and liquid from overflowing and sealing in the water tank; An explosion-proof box (20) is provided at the upper end of the outer portion of the water tank body (1), and an explosion-proof one-way door (21) is provided on one side of the explosion-proof box (20) close to the water tank body (1), and the explosion-proof one-way door (21) penetrates the explosion-proof box (20) and the water tank body (1), and a pressure relief box (27) is provided on the other side of the explosion-proof box (20), and an arc-shaped explosion-proof end (29) is provided at the top of the explosion-proof one-way door (21), and a baffle (30) is provided at the lower end of the explosion-proof one-way door (21), and the width of the baffle (30) is 1 / 4. The width is the same as the inner width of the decompression chamber (5), and is used to seal the lower side of the decompression chamber (5). A limiting top rod (22) is provided on the upper side of the explosion-proof one-way door (21) in the explosion-proof box (20). A spring and a rubber pad (23) are provided on the top of the limiting top rod (22) in sequence. A blower (24) is provided on the top of the explosion-proof box (20) near the explosion-proof one-way door (21). An inert gas tank (26) is provided on the lower side of the explosion-proof box (20) for internal explosion-proof of the explosion-proof box (20).

2. A battery storage protection fire water tank according to claim 1, characterized in that: The decompression chamber (5) is connected to the outside of the water tank body (1), an activated carbon filling layer (6) is provided on the lower side of the interior of the decompression chamber (5), and a filter plate (7) is provided on the lower side of the activated carbon filling layer (6).

3. A battery storage protection fire water tank according to claim 1, characterized in that: Locking structures (19) are provided on both sides of the top of the sealing cover (2), and the sealing cover (2) is connected to the battery body (3) in a limited manner through the locking structures (19). A sealing ring (9) is provided on the lower side of the top cover (8) and is in contact with the sealing cover (2) for sealing the top of the water tank body (1) and the battery body (3).

4. A battery storage protection fire water tank according to claim 1, characterized in that: The convex cover (11) comprises a gently sloping end (12) and a steeply sloping end (14), wherein the gently sloping end (12) is arranged close to the battery body (3), an upwardly inclined anti-overflow sheet (13) is provided on the top of the gently sloping end (12), and an exhaust port (15) is provided in the middle of the steeply sloping end (14) for eliminating upwardly surging bubbles.

5. The battery storage protection fire water tank according to claim 4 further comprises a detection component and a control system, characterized in that: The detection assembly comprises an infrared thermal imaging camera and a smoke detector located on the upper side of the water tank body (1), and a magnetic thermocouple arranged on the top of the battery body (3); a wind speed detection component (16) and a gas detection component (17) are arranged in the exhaust port (15); and the detection assembly, the wind speed detection component (16) and the gas detection component (17) are all connected to a control system.

6. The battery storage protection fire water tank according to claim 1, characterized in that: A pressure relief door (28) is rotatably provided at the lower end of the outer side of the pressure relief box (27), and the pressure relief door (28) is opposite to the explosion-proof one-way door (21). A venetian blind is provided on the side of the pressure relief door (28) close to the water tank body (1), and the height of the pressure relief door (28) is lower than that of the explosion-proof one-way door (21).

Images