A pressureless stored intermittent discharge fire extinguishing device

Abstract

The utility model discloses an intermittent spray and release fire extinguishing device of pressureless storage, including a upper cover body, be equipped with the plug structure of being convenient for connecting control module with its one side at the upper cover body, a lower cover body, be equipped with a filling mouth at one side of the side surface of lower cover body, be equipped with a spray and release mouth at the other side of the side surface of lower cover body, be equipped with at least two pressureless storage fire extinguishing pipe body structure that can pressureless storage fire extinguishing agent and still can make fire extinguishing agent intermittent spray and release when extinguishing between the upper cover body and lower cover body. The utility model discloses through pressureless storage fire extinguishing pipe body structure can pressureless storage fire extinguishing agent, and still can make fire extinguishing agent intermittent spray and release to new energy battery when extinguishing simultaneously, need not regular maintenance, not only reduced the labor intensity of maintenance personnel, and reduced the cost of maintenance.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing technology for new energy batteries, and in particular to an intermittent spray fire extinguishing device with pressureless storage. Background Technology

[0002] With the rapid development of the new energy economy, high-capacity lithium-ion batteries are widely used as energy storage units. Due to their internal chemical reactions and high energy density, batteries may experience thermal failure under conditions such as overcharging, over-discharging, and internal short circuits, which may lead to fire risks.

[0003] New energy storage batteries consist of multiple cells. Their combustion characteristics mean that once the first cell begins to thermally fail, the failure will spread to neighboring cells. Therefore, the thermal failure time of the entire battery can last for more than ten minutes, and sometimes even more than an hour. However, the fire extinguishing systems currently used for new energy batteries require the extinguishing agent to be released all at once during the fire extinguishing process, and the time is mostly within 10 seconds. Therefore, fire extinguishing systems using this method cannot extinguish the fire throughout the entire process of thermal failure of new energy batteries.

[0004] To ensure that the fire extinguishing system can release extinguishing agents throughout the entire thermal failure process, the current fire extinguishing device is a pressurized cylinder assembly, with intermittent release achieved by an electrically controlled cylinder head valve. While this type of fire extinguishing device can extinguish fires throughout the entire thermal failure process of new energy batteries, it has the following problems: First, the cylinder assembly is a pressure vessel, requiring regular maintenance, which not only increases the labor intensity of maintenance personnel but also increases subsequent maintenance costs. Second, due to the pressure inside the cylinder, ordinary electrically controlled valves often become stuck and cannot be reset after being opened due to the pressure inside the cylinder. While high-end electrically controlled valves do not get stuck, they are extremely expensive, causing significant inconvenience to fire rescue operations for new energy batteries experiencing thermal failure. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model aims to provide a pressureless storage intermittent spray fire extinguishing device. This intermittent spray fire extinguishing device features a reasonable overall design, simple structure, and convenient operation. Through its pressureless storage fire extinguishing pipe structure, it can store fire extinguishing agents without pressure, and simultaneously, during fire extinguishing, it can intermittently spray the fire extinguishing agents onto the new energy battery. It eliminates the need for regular maintenance, reducing the labor intensity of maintenance personnel and lowering production and maintenance costs. Furthermore, it effectively avoids the possibility of electrical valve jamming, ensuring high reliability. It can precisely control the agent release at each stage of battery thermal failure, effectively extending the fire extinguishing time and ensuring battery safety. Moreover, its modular design facilitates installation and replacement, making it highly adaptable to various new energy battery environments and greatly facilitating fire rescue operations for new energy batteries experiencing thermal failure.

[0006] To solve the above technical problems, this utility model adopts the following technical solution:

[0007] An intermittent discharge fire extinguishing device with unpressurized storage, comprising:

[0008] A top cover has a plug structure on one side for connecting a control module to it;

[0009] The lower cover has a filling port on one side and a discharge port on the other side.

[0010] The feature is that at least two pressureless fire extinguishing pipe structures are provided between the upper cover and the lower cover, which are capable of storing fire extinguishing agents without pressure and intermittently releasing fire extinguishing agents during fire extinguishing. The fire extinguishing agent injection port of the pressureless fire extinguishing pipe structure is connected to the filling port, and the fire extinguishing agent spray port of the pressureless fire extinguishing pipe structure is connected to the discharge port.

[0011] In a preferred embodiment of the present invention, the pressureless storage fire extinguishing tube structure includes a pressureless storage fire extinguishing tube body, and a piston that can slide along its axial direction is provided inside the pressureless storage fire extinguishing tube body. The piston divides the inner cavity of the pressureless storage fire extinguishing tube body into an independent upper cavity and a lower cavity.

[0012] In a preferred embodiment of this utility model, the upper cavity stores a gas-generating agent that can be triggered by the control module to expand and cause the piston to slide towards the side with lower pressure when the new energy battery experiences thermal failure. The lower cavity stores a fire extinguishing agent that can be pushed out of the discharge port by the piston under the expansion force of the gas-generating agent when the new energy battery experiences thermal failure for fire extinguishing treatment.

[0013] In a preferred embodiment of this utility model, a filling check valve and a discharge check valve are provided on the lower cover body and communicate with the lower cavity. The filling check valve is connected to the filling port through a filling channel provided in the lower cover body, and the discharge check valve is connected to the discharge port through a discharge channel provided in the lower cover body.

[0014] In a preferred embodiment of the present invention, at least two safety release valves are provided on the upper cover body, which can automatically release pressure when the internal pressure of the upper cavity is greater than 8 bar. The safety release valves are provided on the upper cover body and are connected to the upper cavity.

[0015] In a preferred embodiment of this utility model, the upper end of the pressureless storage fire extinguishing tube is fixedly installed on the upper cover by an upper fixing bolt.

[0016] In a preferred embodiment of this utility model, the lower end of the pressureless storage fire extinguishing tube is fixedly installed on the lower cover by a lower fixing bolt.

[0017] Compared with existing technologies, this utility model has a reasonable overall design, simple structure, and convenient operation. Through its pressureless storage fire extinguishing pipe structure, it can store fire extinguishing agents without pressure, and simultaneously, during fire extinguishing, it can intermittently spray the fire extinguishing agents onto the new energy battery, eliminating the need for regular maintenance. This not only reduces the labor intensity of maintenance personnel but also lowers production and maintenance costs. Furthermore, it effectively avoids the problem of electrical control valve jamming, ensuring high reliability and precise control of agent release at each stage of battery thermal failure, effectively extending fire extinguishing time and ensuring battery safety. Moreover, its modular design facilitates installation and replacement, offering strong adaptability and suitability for various new energy battery environments, greatly facilitating fire rescue operations in cases of new energy battery thermal failure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the present invention.

[0020] Figure 2 This is the front view of the present utility model.

[0021] Figure 3 This is the right view of the present invention.

[0022] Figure 4 This is a cross-sectional view of the structure of the pressureless storage fire extinguishing pipe of this utility model.

[0023] Figure 5 This is a cross-sectional view of the lower cover of this utility model. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0025] Reference Figures 1-5 As shown in the figure, an intermittent spray fire extinguishing device with unpressurized storage is provided, including an upper cover 100, a lower cover 200, and an unpressurized storage fire extinguishing pipe structure 300.

[0026] A plug structure 110 is provided on one side of the upper cover 100 to facilitate the connection of the control module to it. The plug of the control module is plugged into the plug structure 110 to facilitate the control module to control the structure of the unpressurized storage fire extinguishing pipe.

[0027] A filling port 220 is provided on one side of the lower cover 200. The fire extinguishing agent can be conveniently filled into the unpressurized storage fire extinguishing pipe structure through the filling port 220. A discharge port 210 is provided on the other side of the lower cover 200.

[0028] At least two unpressurized fire extinguishing pipe structures 300 are provided between the upper cover 100 and the lower cover 200, which are capable of storing fire extinguishing agents without pressure and intermittently releasing fire extinguishing agents during fire extinguishing. The fire extinguishing agent injection port of the unpressurized fire extinguishing pipe structure 300 is connected to the filling port 220, and the fire extinguishing agent spray port of the unpressurized fire extinguishing pipe structure 300 is connected to the discharge port 210.

[0029] In this embodiment, there are four unpressurized storage fire extinguishing pipe structures 300, which are numbered 1, 2, 3 and 4 respectively. When extinguishing the fire of the new energy battery, the control module controls the unpressurized storage fire extinguishing pipe structures to start spraying in sequence according to the numbers 1, 2, 3 and 4.

[0030] The unpressurized storage fire extinguishing tube structure 300 includes an unpressurized storage fire extinguishing tube 310. Inside the unpressurized storage fire extinguishing tube 310, there is a piston 320 that can slide along its axial direction. The piston 320 divides the inner cavity of the unpressurized storage fire extinguishing tube 310 into an independent upper cavity 311 and a lower cavity 312.

[0031] The upper cavity 311 stores a gas-generating agent that, when the new energy battery experiences thermal failure, can be triggered by the control module to expand and cause the piston to slide towards the side with lower pressure. The lower cavity 312 stores a fire extinguishing agent that, when the new energy battery experiences thermal failure, can be forced out of the discharge port by the piston under the expansion force of the gas-generating agent for fire extinguishing.

[0032] The lower cover 200 is provided with a filling check valve 800 and a discharge check valve 700 that are connected to the lower cavity. The filling check valve 800 is connected to the filling port through a filling channel provided in the lower cover 200, and the discharge check valve 700 is connected to the discharge port through a discharge channel provided in the lower cover 200.

[0033] At least two safety release valves 600 are provided on the upper cover 100, which can automatically release pressure when the internal pressure of the upper cavity is greater than 8 bar. The safety release valves 600 are located on the upper cover 100 and are connected to the upper cavity 311. This structure effectively improves the safety performance of the intermittent spray fire extinguishing device.

[0034] The upper end of the unpressurized storage fire extinguishing pipe body 310 is fixedly installed on the upper cover 100 by the upper fixing bolt 400, and the lower end of the unpressurized storage fire extinguishing pipe body 310 is fixedly installed on the lower cover 200 by the lower fixing bolt 500. This structure effectively improves the stability between the unpressurized storage fire extinguishing pipe body 310, the upper cover 100, and the lower cover 200.

[0035] In summary, this utility model features a reasonable overall design, simple structure, and convenient operation. Its pressureless storage fire extinguishing pipe structure allows for the unpressurized storage of fire extinguishing agents, while simultaneously enabling intermittent spraying of the agents onto the new energy battery during firefighting. This eliminates the need for regular maintenance, reducing both the workload and costs for maintenance personnel. Furthermore, it effectively prevents electrical valve jamming, ensuring high reliability and precise control of agent release at various stages of battery thermal failure, effectively extending extinguishing time and ensuring battery safety. Finally, its modular design facilitates installation and replacement, offering strong adaptability to various new energy battery environments and significantly improving the convenience of fire rescue operations in cases of new energy battery thermal failure.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressureless storage intermittent discharge fire extinguishing device, comprising: A top cover has a plug structure on one side for connecting a control module to it; The lower cover has a filling port on one side and a discharge port on the other side. Its features are, At least two unpressurized fire extinguishing pipe structures are provided between the upper cover and the lower cover, which are capable of storing fire extinguishing agents without pressure and intermittently releasing fire extinguishing agents during fire extinguishing. The fire extinguishing agent injection port and filling port of the unpressurized fire extinguishing pipe structure are connected, and the fire extinguishing agent spray port and discharge port of the unpressurized fire extinguishing pipe structure are connected.

2. The intermittent spray fire extinguishing device with pressureless storage as described in claim 1, characterized in that: The unpressurized storage fire extinguishing tube structure includes an unpressurized storage fire extinguishing tube body. Inside the unpressurized storage fire extinguishing tube body, there is a piston that can slide along its axial direction. The piston divides the inner cavity of the unpressurized storage fire extinguishing tube body into an independent upper cavity and a lower cavity.

3. The intermittent spray fire extinguishing device with pressureless storage as described in claim 2, characterized in that: The upper cavity stores a gas-generating agent that, when the new energy battery experiences thermal failure, can be triggered by the control module to expand and cause the piston to slide towards the side with lower pressure. The lower cavity stores a fire extinguishing agent that, when the new energy battery experiences thermal failure, can be forced out of the discharge port by the piston under the expansion force of the gas-generating agent for fire extinguishing.

4. The intermittent spray fire extinguishing device with pressureless storage as described in claim 3, characterized in that: The lower cover is provided with a filling check valve and a discharge check valve that communicate with the lower cavity. The filling check valve is connected to the filling port through a filling channel provided in the lower cover, and the discharge check valve is connected to the discharge port through a discharge channel provided in the lower cover.

5. The intermittent spray fire extinguishing device with pressureless storage as described in claim 2, characterized in that: The upper cover is provided with at least two safety release valves that can automatically release pressure when the internal pressure of the upper cavity is greater than 8 bar. The safety release valves are located on the upper cover and are connected to the upper cavity.

6. The intermittent spray fire extinguishing device with pressureless storage as described in claim 2, characterized in that: The upper end of the unpressurized fire extinguishing pipe is fixedly installed on the upper cover by upper fixing bolts.

7. The intermittent spray fire extinguishing device with pressureless storage as described in claim 2, characterized in that: The lower end of the unpressurized fire extinguishing pipe is fixedly installed on the lower cover by a lower fixing bolt.

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