Energy storage container fire extinguishing system

Abstract

The utility model discloses an energy storage container fire extinguishing system which comprises a container, battery modules are installed in the container at intervals, and a fire extinguishing system body is arranged in the container; the fire alarm system comprises a local control station and a gas fire extinguishing controller, the local control station is matched with the gas fire extinguishing controller to receive an alarm signal of the detector, and the alarm device and the gas fire extinguishing controller are in linkage control; the combustible gas alarm system comprises an exhaust device, and the exhaust device is matched with an electric shutter to exhaust combustible gas from an exhaust channel; the gas fire extinguishing system comprises a fire extinguishing agent bottle set, and the fire extinguishing agent bottle set sprays a fire extinguishing agent to the periphery through a fire extinguishing agent conveying pipeline. According to the utility model, the detector is used for monitoring and early warning of energy storage battery thermal runaway early-stage dissipated gas, and the exhaust device is quickly linked with the gas fire extinguishing device to effectively control the fire behavior at the early stage of a fire, so that the fire extinguishing efficiency is improved, and the influence on the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage containers, in particular to a fire protection system for an energy storage container. Background Art

[0002] Energy storage container is a device used to store energy, usually in the form of a container, which can store and release energy through technologies such as batteries, supercapacitors, and hydrogen fuel cells. Energy storage battery cabin is a common energy storage device, usually built with standard containers. It has hundreds of lithium iron phosphate battery modules, each of which consists of dozens of single cells.

[0003] However, energy storage battery compartments are highly susceptible to fire hazards. Under conditions such as overcharging or overloading, chemical reactions will occur inside the battery and heat will continue to be generated. If the heat cannot be effectively dissipated, it may cause a fire or explosion. The existing energy storage battery container fire protection system lacks early warning equipment for thermal runaway of energy storage batteries, and cannot quickly link fire extinguishing equipment to effectively control the fire in the event of a fire. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide an energy storage container fire protection system.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions, including:

[0006] A container, wherein battery modules are installed at intervals inside the container, and a fire protection system is arranged inside the container, wherein the fire protection system includes a fire alarm system, a combustible gas alarm system and a gas fire extinguishing system;

[0007] The fire alarm system comprises a local control station and a gas fire extinguishing controller, wherein the local control station cooperates with the gas fire extinguishing controller to receive the alarm signal of the detector and control the alarm device and the gas fire extinguishing controller in linkage;

[0008] The combustible gas alarm system includes an exhaust device, which cooperates with electric shutters to exhaust the combustible gas from the exhaust channel;

[0009] The gas fire extinguishing system comprises a fire extinguishing agent bottle group, and the fire extinguishing agent bottle group sprays the fire extinguishing agent to the surroundings through the fire extinguishing agent delivery pipeline.

[0010] As a further description of the above technical solution, the detectors include a smoke detector, a temperature detector and a combustible gas detector, and the detectors are symmetrically arranged on both sides of the battery module.

[0011] As a further description of the above technical solution, the smoke detector, the temperature detector and the gas fire extinguishing controller are electrically connected, and the combustible gas detector, the fan and the electric shutter are electrically connected.

[0012] As a further description of the above technical solution, the alarm device includes an audible and visual alarm, and the audible and visual alarm is arranged on one side of the outside of the container.

[0013] As a further description of the above technical solution, the exhaust device is arranged on the outer walls on both sides of the container, the electric shutters are arranged inside the container wall, and the exhaust device controls the opening and closing of the exhaust channel through the electric shutters.

[0014] As a further description of the above technical solution, pressure relief ports are also provided on both sides of the container, and the pressure relief ports are installed at a height of more than 2 / 3 of the container.

[0015] As a further description of the above technical solution, the gas fire extinguishing controller is arranged above the fire extinguishing agent bottle group, and the gas fire extinguishing controller is electrically connected to the local control station.

[0016] As a further description of the above technical solution, the fire extinguishing agent bottle group is fixed between the battery modules through a support frame, and a fire extinguishing agent delivery pipeline is arranged above the fire extinguishing agent bottle group, and the fire extinguishing agent delivery pipeline is connected to a nozzle.

[0017] As a further description of the above technical solution, the fire extinguishing agent bottle group controls the release of the fire extinguishing agent through an electromagnetic starter or a manual starter, the electromagnetic starter adopts a solenoid valve, and the manual starter adopts a control button.

[0018] As a further description of the above technical solution, the fire extinguishing agent bottle group is connected to a liquid level indicator and a pressure gauge.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The utility model monitors and warns the early dissipated gas of the energy storage battery thermal runaway through the detector, and effectively controls the fire through the exhaust device quickly linked to the gas fire extinguishing device in the early stage of the fire, thereby improving the fire extinguishing efficiency and reducing the impact on the environment.

[0021] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the fire alarm system of the utility model;

[0023] Figure 2It is a structural schematic diagram of the flammable gas alarm system of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the utility model gas fire extinguishing system Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the structure of the utility model gas fire extinguishing system Figure 2 ;

[0026] Figure 5 yes Figure 4 The structural diagram of the middle fire extinguishing agent bottle group;

[0027] Figure 6 The utility model is a flowchart of the energy storage container fire protection system.

[0028] Reference numerals:

[0029] 1. Container; 2. Battery module; 3. Fire protection system; 31. Fire alarm system; 32. Combustible gas alarm system; 33. Gas fire extinguishing system; 4. Local control station; 5. Gas fire extinguishing controller; 6. Detector; 61. Smoke detector; 62. Temperature detector; 63. Combustible gas detector; 7. Exhaust device; 8. Fire extinguishing agent bottle group; 9. Fire extinguishing agent delivery pipeline; 10. Electric shutter; 11. Sound and light alarm; 12. Pressure relief port; 13. Support frame; 14. Nozzle; 15. Electromagnetic starter; 16. Manual starter. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0031] like Figure 1-Figure 6 As shown, in one embodiment, an energy storage container fire protection system includes: a container 1, a battery module 2 is installed in the internal interval of the container 1, a fire protection system 3 is arranged inside the container 1, and the fire protection system 3 includes a fire alarm system 31, a combustible gas alarm system 32 and a gas fire extinguishing system 33.

[0032] Specifically, the energy storage battery cabin is built using a standard container 1, which contains hundreds of lithium iron phosphate battery modules 2. Each module is composed of dozens of single cells. When overcharged or overloaded, it will trigger a chemical reaction and generate heat, which will lead to thermal runaway and may eventually cause a fire or even an explosion.

[0033] like Figure 1-Figure 6As shown, in this embodiment, the fire alarm system 31 is composed of a local control station 4 and a gas fire extinguishing controller 5. The gas fire extinguishing controller 5 is installed above the fire extinguishing agent bottle group 8 and is connected to the local control station 4 through a circuit. The local control station 4 works in coordination with the gas fire extinguishing controller 5 to receive the alarm signal from the detector 6 and control the alarm device and the gas fire extinguishing controller 5 in a linkage manner.

[0034] Furthermore, the alarm device includes an audible and visual alarm 11, which is arranged on one side of the outside of the container 1. The detector 6 includes a smoke detector 61, a temperature detector 62 and a combustible gas detector 63. Specifically, the smoke detector 61 and the temperature detector 62 are electrically connected to the gas fire extinguishing controller 5, and when they detect signs of fire, they will immediately send an alarm signal to the local control station 4; the combustible gas detector 63 is interconnected with the fan and the electric shutter 10 to detect the concentration of the combustible gas and control the operating status of the fan and the electric shutter 10 to ensure that the combustible gas can be discharged as soon as possible.

[0035] like Figure 1-Figure 6 As shown, in this embodiment, the combustible gas alarm system 32 includes an exhaust device 7 and an electric shutter 10. The exhaust device 7 is located on the outer walls of both sides of the container 1, and the electric shutter 10 is installed on the wall inside the container 1. The exhaust device 7 controls the opening and closing of the exhaust channel through the electric shutter 10. Specifically, pressure relief ports 12 are also provided on both sides of the container 1, and the pressure relief ports 12 are installed at a height of more than 2 / 3 of the container.

[0036] like Figure 1-Figure 6 As shown, in this embodiment, the gas fire extinguishing system 33 includes a fire extinguishing agent bottle group 8, a fire extinguishing agent delivery pipeline 9 and a nozzle 14. Among them, the fire extinguishing agent bottle group 8 is fixed between the battery modules 2 through a support frame 13, and a fire extinguishing agent delivery pipeline 9 is installed above the fire extinguishing agent bottle group 8, and the fire extinguishing agent delivery pipeline 9 is connected to the nozzle 14. Specifically, the fire extinguishing agent uses perfluorohexanone, which is a clean gas fire extinguishing agent with high heat capacity and physical heat absorption characteristics. When it is released at an appropriate concentration to form a mixed gas with air, it can absorb enough heat to reduce the ambient temperature to below the extinguishing temperature to achieve a fire extinguishing effect.

[0037] Further, in order to control the release of the fire extinguishing agent, the fire extinguishing agent bottle group 8 can be operated by an electromagnetic starter 15 or a manual starter 16. The electromagnetic starter 15 is usually in the form of a solenoid valve, and the manual starter 16 is equipped with a control button. When the release of the fire extinguishing agent needs to be triggered, the operation of the fire extinguishing agent bottle group 8 is controlled by operating the electromagnetic starter 15 or the manual starter 16.

[0038] In addition, the fire extinguishing agent bottle group 8 is also connected to a liquid level indicator and a pressure gauge. The liquid level indicator is used to monitor and display the liquid level of the fire extinguishing agent in the fire extinguishing agent bottle group 8, so as to ensure that the system is in normal working condition. The pressure gauge is used to measure the pressure inside the fire extinguishing agent bottle group 8 and provide pressure information for reference when the system is running.

[0039] Working principle:

[0040] (1) Combustible gas alarm system 32:

[0041] 1) When the gas detector detects that the combustible gas concentration reaches 10% LFL, it sends out a gas alarm signal, the linkage device opens the exhaust device 7, and starts the sound and light alarm 11 for a first-level warning;

[0042] 2) When the gas detector detects that the combustible gas concentration reaches 80% LEL, it sends out a gas alarm signal, closes the exhaust device 7, and activates the sound and light alarm 11 for a second-level early warning.

[0043] (2) Fire alarm system 31:

[0044] 1) When the temperature detector 62 or the smoke detector 61 sounds an alarm alone, a first-level fire alarm signal is issued, and the sound and light alarm 11 is activated to give a fire warning;

[0045] 2) When the temperature detector 62 and the smoke detector 61 give multiple alarms at the same time, a secondary fire alarm signal is issued, and the sound and light alarm 11 is activated to give a fire warning and prompt not to enter; at the same time, the gas fire extinguishing controller 5 enters a 30S delay, and the fire extinguishing agent is sprayed after a delay of 30 seconds;

[0046] 3) Before the delay ends, when the "emergency release button" on the local control station 4 is manually pressed, the fire extinguishing agent is sprayed immediately;

[0047] 4) When the system is in automatic state and enters the 30-second delay stage, the "manual mode" button on the local control station 4 stops the delay. When the "automatic mode" button on the local control station 4 is pressed again, it switches to automatic state, the system delay time will be reset to 30 seconds, and the countdown will begin.

[0048] (3) Gas fire extinguishing system 33:

[0049] 1) When the delay ends, the gas fire extinguishing controller 5 applies a starting voltage to the electromagnetic starter 15 to start the gas release. The gas is transported to the nozzle 14 along the fire extinguishing agent delivery pipeline 9 and sprayed 360 degrees into the protection area of ​​the energy storage container 1;

[0050] 2) When maintenance personnel enter the container 1, the alarm system should first be automatically switched to manual mode. In manual mode, when the detector 6 detects a fire, the sound and light alarm 11 will only sound and light alarms, but will not start the gas fire extinguishing system 33. The gas fire extinguishing device needs to be released through the "emergency release button" on the local control station 4. When personnel leave the container 1, the system needs to be switched to automatic mode.

[0051] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy storage container fire protection system, characterized in that: include: A container (1), wherein a battery module (2) is installed in a spaced relationship inside the container (1), and a fire protection system (3) is arranged inside the container (1), wherein the fire protection system (3) comprises a fire alarm system (31), a combustible gas alarm system (32) and a gas fire extinguishing system (33); The fire alarm system (31) comprises a local control station (4) and a gas fire extinguishing controller (5), wherein the local control station (4) cooperates with the gas fire extinguishing controller (5) to receive the alarm signal of the detector (6), and controls the alarm device and the gas fire extinguishing controller (5) in a linkage manner; The combustible gas alarm system (32) comprises an exhaust device (7), and the exhaust device (7) cooperates with the electric shutter (10) to exhaust the combustible gas from the exhaust passage; The gas fire extinguishing system (33) comprises a fire extinguishing agent bottle group (8), and the fire extinguishing agent bottle group (8) sprays the fire extinguishing agent to the surroundings through the fire extinguishing agent delivery pipeline (9).

2. The energy storage container fire fighting system according to claim 1, characterized in that: The detector (6) comprises a smoke detector (61), a temperature detector (62) and a combustible gas detector (63), and the detector (6) is symmetrically arranged on both sides of the battery module (2).

3. The energy storage container fire fighting system according to claim 2, characterized in that: The smoke detector (61) and the temperature detector (62) are electrically connected to the gas fire extinguishing controller (5), and the combustible gas detector (63) is electrically connected to the fan and the electric shutter.

4. The energy storage container fire fighting system according to claim 1, characterized in that: The alarm device comprises an audible and visual alarm (11), and the audible and visual alarm (11) is arranged on one side of the exterior of the container (1).

5. The energy storage container fire fighting system according to claim 1, characterized in that: The exhaust device (7) is arranged on the outer walls of both sides of the container (1), the electric shutter (10) is arranged inside the wall of the container (1), and the exhaust device (7) controls the opening and closing of the exhaust passage through the electric shutter (10).

6. The energy storage container fire fighting system according to claim 1, characterized in that: Pressure relief ports (12) are also provided on both sides of the container (1), and the pressure relief ports (12) are installed at a height of more than 2 / 3 of the height of the container (1).

7. The energy storage container fire fighting system according to claim 1, characterized in that: The gas fire extinguishing controller (5) is arranged above the fire extinguishing agent bottle group (8), and the gas fire extinguishing controller (5) is electrically connected to the local control station (4).

8. The energy storage container fire fighting system according to claim 1, characterized in that: The fire extinguishing agent bottle group (8) is fixed between the battery modules (2) via a support frame (13); a fire extinguishing agent delivery pipeline (9) is provided above the fire extinguishing agent bottle group (8); and the fire extinguishing agent delivery pipeline (9) is connected to a nozzle (14).

9. The energy storage container fire fighting system according to claim 1, characterized in that: The fire extinguishing agent bottle group (8) controls the release of the fire extinguishing agent through an electromagnetic starter (15) or a manual starter (16); the electromagnetic starter (15) adopts an electromagnetic valve, and the manual starter (16) adopts a control button.

10. The energy storage container fire fighting system according to claim 1, characterized in that: The fire extinguishing agent bottle group (8) is connected to a liquid level indicator and a pressure gauge.

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