A containerized energy storage system fire fighting device

Abstract

The present invention discloses a container-type energy storage system fire-fighting device. The water storage tank of the present invention is located outside the energy storage container, the water inlet of the water storage tank is located at the upper end of the water storage tank, and the water outlet of the water storage tank is located at the lower end of the water storage tank; the water outlet of the water storage tank is connected to the fire water inlet pipe through a quick-plug interface via a stop valve, a water pump, a one-way check valve, and a water inlet valve; the temperature sensor and the smoke sensor are distributed in the upper part of the container, and the temperature sensor and the smoke sensor are connected to the background monitoring system. The fire water inlet is located in the upper middle of the container side wall, and a liquid level meter is installed in the upper middle of the container side wall. The liquid level meter transmits the water level in the container to the background monitoring system in real time through an analog signal; the one-way check valve is located at the water outlet of the water pump; the fire drainage outlet is located below the container side wall, and the fire drainage outlet is connected to the drainage valve. The design of the present invention to quickly introduce water into the interior of the container is an effective means to control the fire and prevent it from spreading.

Description

Technical Field

[0001] The present invention relates to the field of containerized energy storage systems, and more specifically, to a fire-fighting device for containerized energy storage systems. Background Art

[0002] Energy storage technology is in a stage of rapid development. Energy storage safety is the core of the orderly development of the energy storage industry, especially fire safety.

[0003] Fires in containerized energy storage systems spread quickly, and once the fire spreads, it will cause great damage. The existing firefighting system mainly uses heptafluoropropane immersion to extinguish fires. This firefighting method can effectively isolate the air, but it has no cooling effect and it is easy for the battery to reignite.

[0004] Since containers have excellent thermal insulation properties, the cooling effect is very slow when relying on external fire water spray. It is easy for secondary fires to occur inside the container during the fire extinguishing process, further spreading the danger and threatening the safety of life and property.

[0005] When the fire is serious and the fire fighting system inside the containerized energy storage system cannot control it, the above fire fighting methods cannot effectively control the dangerous situation. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned prior art and provide a container-type energy storage system fire-fighting device to ensure that when a fire occurs and the fire is difficult to control, the temperature can be quickly reduced, the battery can be prevented from reigniting, and the danger can be effectively reduced.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] The present invention discloses a container-type energy storage system fire-fighting device, comprising a water storage tank, a temperature sensor, a smoke sensor, a fire-fighting water inlet, a liquid level gauge, a water inlet valve, a check valve, a fire-fighting drain outlet and a fire-fighting drain pipe;

[0009] The water tank is located outside the energy storage container. The water tank is provided with a water inlet and a water outlet. The water inlet is located at the upper end of the water tank, and the water outlet is located at the lower end of the water tank. At least two water outlets are provided for the water tank. The water outlet of the water tank is connected to the fire water inlet pipe through a stop valve, a water pump, a one-way check valve, and a water inlet valve through a quick-plug interface.

[0010] Temperature sensors and smoke sensors are located in the upper part of the container and are connected to the background monitoring system.

[0011] The fire water inlet is located in the upper middle part of the container side wall. A liquid level gauge is installed in the upper middle part of the container side wall. The liquid level gauge transmits the water level in the container to the background monitoring system in real time through an analog signal; the one-way check valve is located at the water outlet of the water pump; the fire drain outlet is located at the bottom of the container side wall. The fire drain outlet is connected to the drain valve, and the fire water in the container flows into the fire drainage pipe through the fire drain outlet.

[0012] The water tank is used to store fire-fighting water, and the selected liquid is deionized water.

[0013] The amount of fire water stored in the water tank is set according to the amount of water required to immerse 60% of the effective space of a single container.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the fire protection design of the containerized energy storage system of the present invention can introduce fire water into the interior of the container, and when the internal gas fire protection means cannot effectively control the fire, the internal fire can be extinguished and cooled, which can effectively prevent the spread of fire and reduce the harm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the container fire protection system of the present invention;

[0016] Figure 2 This is a schematic diagram of the water storage station principle of the present invention;

[0017] Figure 3 It is a schematic diagram of the container principle of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] like Figure 1-3 As shown, the water tank is located outside the energy storage container, and its size is designed in combination with the on-site space and the number of containerized energy storage systems. The amount of fire water stored in the water tank is recommended to be set according to the amount of water that can immerse 60% of the effective space of a single container. The water tank is provided with a water inlet and a water outlet, and a magnetic float type magnetic flap level gauge 2 is installed on the outer wall of the water tank. The water inlet 1 of the water tank is located at the upper end of the water tank, and the water outlet of the water tank is located at the lower end of the water tank. There are at least two water outlets of the water tank, one is to ensure that water can be supplied to two or more containerized energy storage systems at the same time in an emergency, and the other is to serve as a backup port. The water outlet of the water tank is connected to the fire water inlet pipe 6 through a stop valve 5, a water pump 4, a one-way check valve 3, and a water inlet valve, and the interface is a quick plug-in to achieve flexible switching.

[0020] Temperature sensors 8 and smoke sensors 7 are distributed at designated locations in the energy storage container. The temperature sensors and smoke sensors monitor the temperature and smoke concentration in the containerized energy storage system in real time as a basis for firefighting actions. After the gas (such as heptafluoropropane) firefighting system is started, the temperature sensors and smoke sensors continue to work and continuously monitor the internal state. When the set conditions are reached, all power supplies are cut off to start the firefighting system of the present invention. A container magnetic float ball type magnetic flap level gauge 9 is installed on the outer wall of the energy storage container. The firefighting drain is located below the side wall of the container. The drain valve 10 is opened, and the firefighting water in the container flows into the firefighting drain pipe 11 through the firefighting drain.

[0021] The fire water inlet is located in the upper middle part of the container side wall (it is necessary to consider the convenience of external personnel to connect the water inlet pipe). When the water inlet valve is opened, the fire water flows through the fire water inlet pipe and enters the container from the fire water inlet; when the valve is closed, the fire water stops entering.

[0022] The container magnetic float type magnetic flap level meter can observe the water level inside the container with naked eyes. In addition, the level meter can transmit the water level in the container to the background monitoring in real time through analog signals.

[0023] The water inlet valve can control the on and off of water inlet and adjust the size of the water inlet flow.

[0024] The one-way check valve is located at the water outlet of the water pump, which effectively prevents the residual deionized water inside the container or in the pipeline from flowing back and damaging the water pump.

[0025] The fire drainage pipe is connected to the drain outlet at one end and extends to the designated location based on the application site conditions at the other end. It is used as a discharge channel for fire water to avoid affecting the working environment in this area.

[0026] The present invention has the following technical effects:

[0027] 1. The firefighting method of HFC-227ea in the container can only extinguish the fire by isolating the air, which cannot effectively reduce the temperature. In the case of severe thermal runaway of the battery, it cannot be effectively controlled, and it is easy to re-ignite. The external firefighting spray cooling is slow to take effect. These two methods cannot effectively control the spread of serious fires. The design of the present invention is to quickly introduce water into the interior of the container, which is an effective means to control the fire and prevent the spread.

[0028] 2. Set up a fire water tank. In an emergency, water can be quickly drawn through valve control. Deionized water is used as fire water, which is efficient and safe.

[0029] 3. Set up drainage pipes to ensure safety and not affect the working environment in this area.

[0030] 4. The water outlet of the water storage tank and the fire water inlet pipe of the container are connected by quick plug-in, which enables fast connection and flexible switching.

[0031] 5. The liquid level gauge can display the water inflow and drainage conditions of fire fighting.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A firefighting method using a containerized energy storage system firefighting device, wherein the containerized energy storage system firefighting device comprises a water storage tank, a temperature sensor, a smoke sensor, a firefighting water inlet, a liquid level gauge, a water inlet valve, a check valve, a firefighting drain outlet and a firefighting drain pipe; The water tank is located outside the energy storage container. The water tank is provided with a water inlet and a water outlet. The water inlet is located at the upper end of the water tank, and the water outlet is located at the lower end of the water tank. At least two water outlets are provided for the water tank. The water outlets of the water tank are connected to the fire water inlet pipe through a stop valve, a water pump, a one-way check valve, and a water inlet valve through a quick-plug interface. Temperature sensors and smoke sensors are located in the upper part of the container and are connected to the background monitoring system. The fire water inlet is located in the upper middle of the container side wall. A liquid level gauge is installed in the upper middle of the container side wall. The liquid level gauge transmits the water level in the container to the background monitoring system in real time through analog signals. The one-way check valve is located at the water outlet of the water pump. The fire drainage outlet is located at the bottom of the container side wall. The fire drainage outlet is connected to the drainage valve. The fire water in the container flows into the fire drainage pipe through the fire drainage outlet. The fire water volume stored in the water storage tank is set according to the water volume that can immerse 60% of the effective space of a single container; The water tank is used to store fire-fighting water, and the selected liquid is deionized water; its characteristics are: It is used to start when the internal gas fire-fighting means cannot effectively control the fire. After the gas fire-fighting system is started, the temperature sensor and smoke sensor continue to work and continuously monitor the internal status. When the set conditions are met, all power supplies are cut off and the container-type energy storage system fire-fighting device is started to introduce fire-fighting water into the container to achieve internal fire extinguishing and cooling. The fire water inlet is located in the upper middle of the container side wall. When the water inlet valve is opened, the fire water flows through the fire water inlet pipe and enters the container from the fire water inlet. When the valve is closed, the fire water stops entering. The fire drainage pipe is connected to the drain outlet at one end and extends to the designated location based on the application site conditions at the other end, and is used as a discharge channel for fire water.

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