Prefabricated perfluoropolyether fire extinguishing device

Abstract

The utility model discloses a prefabricated perfluoropolyether fire extinguishing device which comprises a plurality of groups of fire extinguishing agent storage bottles, a nozzle of each group of fire extinguishing agent storage bottles is connected with one end of a liquid conveying pipe through a container valve, the other end of the liquid conveying pipe penetrates into an energy storage container and is connected with a plurality of flow dividing pipes installed in one area, the flow dividing pipes are connected with a spray head, and the spray head is connected with the spray head. A detection module is arranged at a position close to the nozzle; according to the utility model, the unmanned management automatic detection and fire extinguishing protection process is realized, and the fire extinguishing process can be respectively controlled in different areas in the energy storage container, so that other potential safety hazards caused by excessive fire extinguishing and waste of the fire extinguishing agent are prevented, and the problems of damage to other intact batteries and overhigh cost caused by excessive large-range fire extinguishing are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire extinguishing device technical field, especially a prefabricated perfluoropolyether fire extinguishing device. BACKGROUND

[0002] In recent years, with the continuous growth of global energy demand and the rapid development of new energy technology, lithium battery energy storage system has become an indispensable important part in the power system. From the user side to the grid side, from the power generation side to the new energy grid and microgrid, the application of lithium battery energy storage system is everywhere. However, although lithium ion battery has the advantages of high energy density and long cycle life, there is a risk of thermal runaway in the use process, which may lead to fire accidents. Due to the special material of the battery in the energy storage container, once the fire occurs, it will cause greater impact, the fire spreads rapidly, and the duration is long, accompanied by the release of toxic gases, and there is a risk of secondary combustion after the open fire is extinguished. The frequent occurrence of fire accidents has attracted people's high attention to the safety of energy storage system. In order to prevent the thermal runaway of lithium ion battery, people have taken a series of preventive measures and safety management measures to reduce the risk and ensure its safe and reliable operation. However, the traditional fire extinguishing device may cause some areas to be ineffective in the process of controlling and extinguishing the fire, or cause excessive fire extinguishing to lead to other safety hazards, waste the amount of fire extinguishing agent, and excessive large-scale fire extinguishing may also cause damage to other perfect batteries, which is too high in cost. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned insufficient, provides a prefabricated perfluoropolyether fire extinguishing device to solve the problem in the background art.

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme of a prefabricated perfluoropolyether fire extinguishing device, which comprises a plurality of fire extinguishing agent storage bottles, the spray port of each fire extinguishing agent storage bottle is connected with one end of the infusion pipe through the container valve, the other end of the infusion pipe penetrates into the energy storage container and is connected with a plurality of shunt pipes installed in one area, the shunt pipe is connected with the spray head, and a detection module is arranged near the spray head.

[0005] Preferably, the container valve is matched with the electromagnetic valve, the control end of the electromagnetic valve is connected with the output end of the controller, and the input end of the controller is connected with the output end of the detection module.

[0006] Preferably, the fire extinguishing agent storage bottle is filled with perfluoropolyether fire extinguishing agent and nitrogen.

[0007] Preferably, the container valve is threadedly matched with the electromagnetic valve.

[0008] Preferably, the position where the shunt pipe is connected with the spray head is also provided with a control valve, and the control end of the control valve is connected with the output end of the controller.

[0009] Preferably, the detection module is a temperature sensor and / or a smoke sensor.

[0010] Preferably, the controller is a PLC controller.

[0011] Preferably, the extinguishing agent storage cylinder is fixed to the outside of the energy storage container by clamps.

[0012] The beneficial effects of this utility model are as follows: This utility model realizes an unmanned, automatic detection and fire extinguishing protection process. When a battery thermal runaway occurs inside the energy storage container, the detection module detects the fire and sends a signal to the controller. The controller then controls the opening of the solenoid valve to deliver perfluoropolyether fire extinguishing agent into the energy storage container for fire extinguishing and protection, preventing the thermal runaway from continuing and providing absolute protection for the battery. Furthermore, the fire extinguishing process can be controlled separately in different areas of the energy storage container, preventing excessive fire extinguishing from causing other safety hazards, wasting fire extinguishing agent, and avoiding the problem of excessive large-scale fire extinguishing damaging other intact batteries and incurring excessive costs. Attached Figure Description

[0013] Figure 1 It is a prefabricated perfluoropolyether fire extinguishing device. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1 As shown, a prefabricated perfluoropolyether fire extinguishing device includes multiple sets of fire extinguishing agent storage cylinders 1. The nozzle of each set of fire extinguishing agent storage cylinders 1 is connected to one end of an infusion pipe 8 through a container valve 2. The other end of the infusion pipe 8 is inserted into the energy storage container and connected to multiple diversion pipes 5 installed in one of the areas. The diversion pipes 5 are connected to nozzles 6. A detection module 7 is provided near the nozzles 6.

[0016] Preferably, the container valve 2 cooperates with the solenoid valve 3, the control end of the solenoid valve 3 is connected to the output end of the controller 4, and the input end of the controller 4 is connected to the output end of the detection module 7. In this embodiment, the controller 4 can control the opening and closing of the solenoid valve 3, and the magnetic force of the solenoid valve 3 can cause the valve plate of the container valve 2 to move, thereby causing the container valve 2 to open or close.

[0017] Preferably, the extinguishing agent storage cylinder 1 is filled with perfluoropolyether extinguishing agent and nitrogen. In this embodiment, when the container valve 2 is opened, the perfluoropolyether extinguishing agent can be expelled under the pressure of nitrogen.

[0018] Preferably, the container valve 2 is threadedly engaged with the solenoid valve 3.

[0019] Preferably, the position where the shunt pipe 5 is connected with the spray head 6 is also provided with a control valve, and the control end of the control valve is connected with the output end of the controller 4. In this way, the corresponding number of spray heads 6 can be controlled more finely, and the corresponding number of spray heads 6 can be selected according to the fire extinguishing range, so that the amount of fire extinguishing agent can be saved.

[0020] Preferably, the detection module 7 is a temperature sensor and / or a smoke sensor. When a fire, overheating or the like occurs, the detection module 7 detects a high-temperature environment generated by the fire outside and sends a signal to the controller 4.

[0021] Preferably, the controller 4 is a PLC controller.

[0022] Preferably, the fire extinguishing agent storage bottle 1 is fixed to the outside of the energy storage container by the clamp 9.

[0023] The working principle of the embodiment is as follows:

[0024] When a fire, overheating or the like occurs, the detection module 7 detects a high-temperature environment generated by the fire outside and sends a signal to the controller 4. The controller 4 controls the electromagnetic valve 4 to open the container valve 2, so that the perfluoropolyether fire extinguishing agent can be pressed out under the action of nitrogen pressure, then pass through the infusion pipe 8 and the shunt pipe 5, and finally be sprayed out from the spray head 6 to extinguish the fire and protect the battery, thereby preventing the continuous progress of thermal runaway and achieving absolute protection of the battery. In addition, different regions in the energy storage container have different detection modules 7, and when a fire occurs in a corresponding region, the detection module 7 in the region sends a signal to the controller 4 to make the corresponding fire extinguishing agent storage bottle 1 output fire extinguishing agent. In this way, the fire extinguishing process in different regions of the energy storage container can be controlled respectively, so as to prevent excessive fire extinguishing from causing other safety hazards, waste the amount of fire extinguishing agent, and avoid excessive large-scale fire extinguishing from causing damage to other intact batteries and high cost.

[0025] The above embodiment is only a preferred technical solution of the present application, and should not be regarded as a limitation of the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including equivalent replacement solutions of the technical features in the claimed technical solutions. That is, equivalent replacement improvements within this scope are also within the protection scope of the present application.

Claims

1. A prefabricated total fluoropolyether fire extinguishing device comprising a plurality of groups of fire extinguishing agent storage bottles (1), characterized in that: The nozzle of each fire extinguishing agent storage bottle (1) is connected with one end of the delivery pipe (8) through the container valve (2), the other end of the delivery pipe (8) penetrates into the energy storage container and is connected with a plurality of branch pipes (5) installed in one area, the branch pipes (5) are connected with the spray head (6), and the detection module (7) is arranged near the spray head (6).

2. A prepackaged perfluoropolyether fire extinguishing device according to claim 1, wherein: The container valve (2) is matched with the electromagnetic valve (3), the control end of the electromagnetic valve (3) is connected with the output end of the controller (4), and the input end of the controller (4) is connected with the output end of the detection module (7).

3. A prepackaged perfluoropolyether fire extinguishing device according to claim 1, wherein: The fire extinguishing agent storage bottle (1) is filled with perfluoropolyether fire extinguishing agent and nitrogen.

4. A prepackaged perfluoropolyether fire extinguishing device according to claim 2, wherein: The container valve (2) is threadedly matched with the electromagnetic valve (3).

5. A prepackaged perfluoropolyether fire extinguishing device according to claim 1, wherein: The position, where the branch pipe (5) is connected with the spray head (6), is also provided with the control valve, and the control end of the control valve is connected with the output end of the controller (4).

6. A prepackaged perfluoropolyether fire extinguishing device according to claim 1, wherein: The detection module (7) is a temperature sensor and / or a smoke sensor.

7. A prepackaged perfluoropolyether fire extinguishing device according to claim 2, wherein: The controller (4) is a PLC controller.

8. A prepackaged perfluoropolyether fire extinguishing device according to claim 1, wherein: The fire extinguishing agent storage bottle (1) is fixed to the outside of the energy storage container through the hoop (9).

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