Automatic water injection fire extinguishing system for energy storage container

Abstract

The utility model relates to the technical field of fire extinguishing of energy storage containers, in particular to an automatic water injection fire extinguishing system of an energy storage container, which comprises a controller, an alarm device, the energy storage container, a reservoir embedded in the upper surface of the ground and a water replenishing device arranged on the ground, the energy storage container is arranged in the reservoir, a plurality of water inlet valves are arranged on the energy storage container, and a temperature sensor is arranged in the energy storage container; the reservoir and the water replenishing device are filled with flame-retardant fire water, a drain pipe is arranged on the water replenishing device, and a water outlet of the drain pipe is arranged in the reservoir; the temperature sensor is used for detecting temperature data of the energy storage container and feeding back a temperature detection signal to the controller; and the controller controls the opening and closing of the water inlet valve and the alarm device according to the temperature detection signal. By the adoption of the scheme, when a fire happens to the energy storage container, the energy storage container can be effectively controlled, comburent and explosives are prevented from flying out, and the fire hazard range is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage container fire extinguishing, in particular to an automatic water injection fire extinguishing system for an energy storage container. Background Art

[0002] At present, the fire extinguishing system widely used in energy storage containers is mainly prefabricated gas fire extinguishing system. Gas fire extinguishing mostly uses heptafluoropropane or perfluorohexanone gas, which can effectively extinguish the external flames of lithium battery fires in the early stage, but the fire extinguishing gas cannot reach the inside of the battery, resulting in the inability to block the chemical reaction inside the battery after the external fire is extinguished. The lithium battery is still burning without oxygen, and thermal runaway continues, which is very likely to cause secondary re-ignition. In addition, it is difficult to control thermal radiation, and thus the safety of surrounding buildings cannot be guaranteed. Moreover, most energy storage containers are made of steel materials. The high temperature generated by the long-term burning of the battery will cause the melting of the box material, thereby causing collapse and further expansion of the disaster. Therefore, the fire extinguishing effect of the existing gas fire extinguishing system is extremely limited. To address this issue, fire hydrants are usually installed around energy storage containers to achieve continuous fire extinguishing. Traditional fire hydrants mainly use cooling methods to deal with lithium battery fires. However, due to the influence of the energy storage container body, the cooling water cannot reach the fire point, and it is still difficult to achieve thorough fire extinguishing. The fire extinguishing efficiency is low, and manual participation is required during the fire extinguishing process. Once the lithium battery explodes, it will threaten the personal safety of rescue workers.

[0003] Therefore, there is an urgent need to provide an automatic water injection fire extinguishing system for an energy storage container, which can effectively control the fire in the energy storage container and prevent the burning and explosive materials from flying out, thereby reducing the scope of the fire hazard. Utility Model Content

[0004] The utility model provides an automatic water injection fire extinguishing system for an energy storage container, which can effectively control a fire in the energy storage container and prevent burning materials and explosives from flying out, thereby reducing the scope of fire damage.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] An automatic water injection fire extinguishing system for an energy storage container, comprising a controller, an alarm device, an energy storage container, a water reservoir embedded in the upper surface of the ground, and a water replenishing device arranged on the ground; the energy storage container is arranged in the water reservoir, a plurality of water inlet valves are arranged on the energy storage container, and a temperature sensor is arranged in the energy storage container; the water reservoir and the water replenishing device are both filled with flame-retardant fire-fighting water, the water replenishing device is provided with a drain pipe, and the drain outlet of the drain pipe is arranged in the water reservoir;

[0007] The alarm device, water inlet valve and temperature sensor are all electrically connected to the controller;

[0008] The temperature sensor detects the temperature data of the energy storage container and feeds back the temperature detection signal to the controller;

[0009] The controller controls the opening and closing of the water inlet valve and the alarm device according to the temperature detection signal.

[0010] The principle and advantage of the utility model are: when a fire occurs in the energy storage container, the temperature sensor senses the abnormal temperature and feeds back the temperature detection signal to the controller in real time, and then the controller controls the water inlet valve set on the energy storage container to open, so that the flame-retardant fire water in the water tank enters the energy storage container through the water inlet valve by using the pressure difference to extinguish the fire, and at the same time controls the alarm device to open to remind relevant personnel of the abnormal situation of the energy storage container. Therefore, by adopting this scheme, it is possible to automatically and effectively control the various stages of the lithium battery fire in the energy storage container, including the initial stage, development stage and extinguishing stage of the fire; in addition, compared with the gas fire extinguishing system in the prior art, it can not only effectively control the external flame of the lithium battery, but also because the flame-retardant fire water can fully enter the interior of the energy storage container, and it itself has the effect of reducing the internal temperature of the battery, so that the energy storage container body can be effectively cooled to prevent the lithium battery from exploding due to the increase in temperature, and avoid the melting of materials due to high temperature, and the collapse of the energy storage container body.

[0011] In addition, the energy storage container in this solution is placed in a reservoir excavated on the ground, which is located below the ground, which can effectively prevent the heat radiation of the fire from igniting surrounding buildings, and even if the battery explodes, it will not cause the disaster to expand. Even if the flame retardant fire-fighting liquid in the reservoir is not enough to submerge the energy storage container, it can be replenished in time through the water replenishment device.

[0012] In summary, the present solution can effectively and automatically control the energy storage container when a fire occurs, without the need for human intervention, and prevents the flying of combustibles and explosives, thereby reducing the scope of fire hazards and improving personal safety.

[0013] Furthermore, the water level of the flame-retardant fire-fighting water in the water reservoir is higher than the top of the energy storage container.

[0014] Beneficial effects: It is helpful to provide sufficient flame-retardant fire-fighting water for fire extinguishing when a fire occurs, and provide sufficient pressure to allow the flame-retardant fire-fighting water to quickly enter the energy storage container.

[0015] Furthermore, an exhaust duct is provided on the top of the energy storage container.

[0016] Beneficial effect: After the flame-retardant fire-fighting water in the water tank enters the energy storage container, the internal air is compressed, reducing the speed at which the flame-retardant fire-fighting water enters the energy storage container; therefore, in this solution, an exhaust duct is provided at the top of the energy storage container, so that the internal air can be discharged from the exhaust duct at the top, which is conducive to the flame-retardant fire-fighting water quickly filling the energy storage container.

[0017] Furthermore, the exhaust port of the exhaust duct is higher than the ground.

[0018] Beneficial effect: It prevents the exhaust pipe from being flooded by the flame-retardant fire water in the water tank, causing water to enter the energy storage container without a fire.

[0019] Furthermore, the drainage outlet of the drainage pipe is higher than the top of the energy storage container and lower than the ground.

[0020] Beneficial effect: The drainage outlet of the drainage pipe is higher than the top of the energy storage container and lower than the ground, forming a siphon principle, which can automatically keep the water level of the flame-retardant fire-fighting water in the water tank higher than the top of the energy storage container and lower than the ground. When a fire occurs and the flame-retardant fire-fighting water in the water tank enters the energy storage container, causing the water level in the water tank to drop, the flame-retardant fire-fighting water in the water replenishment device is automatically injected into the water tank, which is conducive to the continuous automatic control of the fire.

[0021] Furthermore, the water inlet valves are arranged in a vertical array on the side of the energy storage container.

[0022] Beneficial effect: Multiple water inlet valves are arranged in a vertical array on the side of the energy storage container to ensure that the flame-retardant fire-fighting water quickly passes through various places inside the energy storage container and the fire is controlled in time.

[0023] Furthermore, it also includes a display device; the display device is electrically connected to the controller;

[0024] The controller controls the display content of the display device according to the temperature detection signal.

[0025] Beneficial effect: It is helpful for relevant personnel to grasp the temperature inside the energy storage container in real time through the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a signal flow diagram of an embodiment of an automatic water injection fire extinguishing system for an energy storage container.

[0027] Figure 2 The utility model is a schematic diagram of the overall structure of an automatic water injection fire extinguishing system for an energy storage container. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] The symbols in the drawings of the specification include: energy storage container 1, soil 2, water reservoir 3, lithium battery 4, temperature sensor 5, display device 6, water inlet valve 7, flame retardant fire water 8, exhaust pipe 9, water replenishment device 10, and drain pipe 11.

[0030] Embodiment 1:

[0031] An automatic water injection fire extinguishing system for energy storage containers, such as Figure 1 , Figure 2 As shown, it includes a controller, an alarm device, an energy storage container 1 for storing lithium batteries 4, a display device 6, a water reservoir 3 embedded in the upper surface of the ground, and a water replenishment device 10 arranged on the ground. In this embodiment, the model of the controller is S7-1200; the alarm device is an audible and visual alarm device, which is arranged on the top of the water replenishment device 10; and the display device 6 is an LED display screen.

[0032] The water reservoir 3 is a water storage device formed by excavating the soil 2. The surface of the water reservoir 3 is provided with reinforced concrete support and a waterproof layer. The inside of the water reservoir 3 contains flame retardant fire water 8. In this embodiment, the flame retardant fire water 8 is a commonly used chemical fire extinguishing agent containing potassium. In other embodiments of the present application, chemical fire extinguishing agents containing sodium, magnesium and other elements can also be used. Figure 2 As shown, the energy storage container 1 is arranged in the water reservoir 3, and the energy storage container 1 is provided with a plurality of water inlet valves 7 connecting the water reservoir 3 and the interior of the energy storage container 1. In this embodiment, there are 6 water inlet valves 7, which are arranged in a vertical array on the side of the energy storage container 1, 3 on each side. Thus, the flame-retardant fire-fighting water 8 in the water reservoir 3 can enter the interior of the energy storage container 1 through the water inlet valves 7 arranged on the energy storage container 1.

[0033] A temperature sensor 5 is provided in the energy storage container 1 to detect the temperature data of the energy storage container 1 in real time. In this embodiment, the model of the temperature sensor 5 is TM1SHC4. An exhaust pipe 9 is provided on the top of the energy storage container 1, and the exhaust port of the exhaust pipe 9 is higher than the ground. The principle is that after the flame-retardant fire-fighting water 8 in the water reservoir 3 enters the energy storage container 1, the internal air is compressed, reducing the speed at which the flame-retardant fire-fighting water 8 enters the energy storage container 1; therefore, in this solution, an exhaust pipe 9 is provided on the top of the energy storage container 1, and the exhaust port of the exhaust pipe 9 is higher than the ground, so that the internal air can be discharged from the exhaust pipe 9 on the top, which is conducive to the flame-retardant fire-fighting water 8 quickly filling the energy storage container 1, and avoiding the exhaust pipe 9 being submerged by the flame-retardant fire-fighting water 8 in the water reservoir 3, resulting in water entering the energy storage container 1 without a fire.

[0034] The water replenishing device 10 also contains flame retardant fire water 8. The water replenishing device 10 is provided with a drain pipe 11. The drain outlet of the drain pipe 11 is set in the water reservoir 3. Therefore, the flame retardant fire water 8 in the water replenishing device 10 can be injected into the water reservoir 3 through the drain pipe 11. The water level of the flame retardant fire water 8 in the water reservoir 3 is higher than the top of the energy storage container 1. The drain outlet of the drain pipe 11 is higher than the top of the energy storage container 1 and lower than the ground, forming a siphon principle, which can automatically keep the water level of the flame retardant fire water 8 in the water reservoir 3 higher than the top of the energy storage container 1 and lower than the ground. When a fire occurs and the flame retardant fire water 8 in the water reservoir 3 enters the energy storage container 1, causing the water level in the water reservoir 3 to drop, the flame retardant fire water 8 in the water replenishing device 10 is automatically injected into the water reservoir 3, which is conducive to the continuous automatic control of the fire.

[0035] The alarm device, the display device 6, the water inlet valve 7 and the temperature sensor 5 are all electrically connected to the controller.

[0036] The temperature sensor 5 detects the temperature data of the energy storage container 1 and feeds back the temperature detection signal to the controller; the controller controls the opening and closing of the water inlet valve 7 and the alarm device according to the temperature detection signal, and controls the display content of the display device 6. Specifically, the controller controls the display device 6 to display the current temperature according to the temperature detection signal, so that relevant personnel can view the temperature data in the energy storage container 1; when the temperature detection signal shows that the temperature data in the energy storage container 1 is higher than the temperature threshold, the controller controls the water inlet valve 7 and the alarm device to open, so as to control the flame retardant fire water 8 to enter the interior of the energy storage container 1, so as to achieve the effect of extinguishing the fire.

[0037] By adopting this solution, the fire extinguishing efficiency can be further improved, and the energy storage container 1 and the internal lithium battery 4 can be cooled down. On the one hand, it can prevent the energy storage container 1 from melting and collapsing due to the high temperature of the fire, and on the other hand, it can effectively extinguish the fire inside the lithium battery 4. At the same time, under the protection of the flame retardant fire water 8, the path of fire propagation is cut off, eliminating the risk of causing fires in surrounding buildings. The flame retardant fire water 8 and the surrounding soil layer can effectively absorb the shock wave generated by the explosion of the lithium battery 4, protecting the surrounding people and objects.

[0038] Embodiment 2:

[0039] The basic principle of Example 2 is the same as that of Example 1, the difference being that in Example 2, a water injection hole is provided on the top of the water replenishing device 10, and a cover is provided on the water injection hole, so that flame-retardant fire-fighting water 8 can be added to the water replenishing device 10 by opening the cover on the water injection hole.

[0040] The above are only embodiments of the utility model. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. An automatic water injection fire extinguishing system for an energy storage container, characterized in that: It includes a controller, an alarm device, an energy storage container, a water reservoir embedded in the upper surface of the ground, and a water replenishing device arranged on the ground; the energy storage container is arranged in the water reservoir, a plurality of water inlet valves are arranged on the energy storage container, and a temperature sensor is arranged in the energy storage container; the water reservoir and the water replenishing device are both filled with flame-retardant fire-fighting water, the water replenishing device is provided with a drain pipe, and the drain outlet of the drain pipe is arranged in the water reservoir; The alarm device, water inlet valve and temperature sensor are all electrically connected to the controller; The temperature sensor detects the temperature data of the energy storage container and feeds back the temperature detection signal to the controller; The controller controls the opening and closing of the water inlet valve and the alarm device according to the temperature detection signal.

2. The automatic water injection fire extinguishing system for energy storage containers according to claim 1 is characterized in that: The water level of the flame-retardant fire-fighting water in the water reservoir is higher than the top of the energy storage container.

3. The automatic water injection fire extinguishing system for energy storage containers according to claim 1 is characterized in that: An exhaust pipe is arranged on the top of the energy storage container.

4. The automatic water injection fire extinguishing system for energy storage containers according to claim 3 is characterized in that: The exhaust port of the exhaust duct is higher than the ground.

5. The automatic water injection fire extinguishing system for energy storage containers according to claim 1 is characterized in that: The drainage outlet of the drainage pipe is higher than the top of the energy storage container and lower than the ground.

6. The automatic water injection fire extinguishing system for energy storage containers according to claim 1 is characterized in that: The water inlet valves are arranged in a vertical array on the side of the energy storage container.

7. The automatic water injection fire extinguishing system for energy storage containers according to claim 1 is characterized in that: Also includes a display device; the display device is electrically connected to the controller; The controller controls the display content of the display device according to the temperature detection signal.

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