Lithium battery double-low-pressure water mist fire extinguishing system

Abstract

The utility model relates to the technical field of lithium battery fire extinguishing equipment, in particular to a lithium battery double-low-pressure water mist fire extinguishing system which comprises a suspension spraying assembly used for packaging a lithium battery for fire extinguishing, a bridge used for linearly installing the suspension spraying assembly and a conveying pipe used for supplying water to the suspension spraying assembly at low pressure. The suspension spraying assembly comprises a valve piece arranged outside the conveying pipe in a sleeving mode, a spraying head connected with a water outlet of the valve piece, a valve rod used for controlling opening and closing of the valve piece, a control box connected with the valve rod, a suspension used for installing and fixing the control box and a lug base fixed to the edge of the suspension. The suspension spraying assembly is arranged to conduct spraying fire extinguishing on the integrated lithium battery so as to achieve timely treatment of fire disasters, when the integrated lithium battery senses the fire disasters, the external control end controls starting of the control box, the control box drives the valve rod to rotate, under the action of the valve rod, the valve piece of the integrated lithium battery is opened, water in the conveying pipe is conveyed to the spraying head through the valve piece, and fire extinguishing is achieved. And then low-pressure water mist is formed, and fire extinguishing treatment on the lithium battery is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery fire extinguishing equipment, in particular to a lithium battery dual low-pressure fine water mist fire extinguishing system. Background Art

[0002] Lithium battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solution. The chemical properties of lithium metal are very active, which makes the processing, storage and use of lithium metal have very high environmental requirements.

[0003] Characteristics of lithium-ion battery fires: (1) Fast ignition speed and long duration. The fire spreads rapidly inside the lithium-ion battery module in just a few seconds and lasts for about twenty minutes; (2) High combustion temperature. During combustion, the maximum temperature outside the battery can reach 283-1090 degrees Celsius, and the temperature inside the battery can reach 572-1121 degrees Celsius. Such high temperatures are enough to ignite other combustible materials inside the battery module and the battery box, causing a larger fire; (3) Difficult to extinguish. For lithium batteries, most of the combustion reactions occur inside the battery casing, which hinders the use of fire extinguishing agents. In practice, the time it takes to extinguish a lithium battery fire often exceeds the oxygen supply time of the oxygen cylinders carried by firefighters, posing a certain threat to the personal safety of firefighters; (4) Spontaneous combustion and explosion for a long time. Lithium-ion batteries can spontaneously combust. If the fire and temperature are not well controlled, they will explode due to overheating.

[0004] To this end, the utility model proposes a lithium battery dual low-pressure fine water mist fire extinguishing system to avoid the occurrence of the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery dual low-pressure fine water mist fire extinguishing system to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery dual low-pressure fine water mist fire extinguishing system, comprising a suspension spray assembly for containerized lithium battery fire extinguishing, a bridge frame for linear installation of the suspension spray assembly, and a delivery pipe for low-pressure water supply to the suspension spray assembly; the suspension spray assembly comprises a valve member sleeved on the outside of the delivery pipe, a spray head connected to the water outlet of the valve member, a valve stem for opening and closing control of the valve member, a control box connected to the valve stem, a suspension for fixing the control box, and an ear seat fixed to the edge of the suspension, and the ear seat is fixed under the bridge frame.

[0007] The utility model is further configured such that the control box is connected to the external control terminal, and a plurality of the control boxes are arranged in parallel.

[0008] The utility model is further configured that a suspension rod is provided on the lower side of the ear seat, a nut is integrally connected to the lower end of the suspension rod, and an arc frame is fixed on the inner side of the nut, and the valve stem is inserted into the middle of the arc frame.

[0009] The utility model is further configured that a screw is fixed at the bottom of the nut, a bracket is matched with the bottom of the screw, and a nut is threadedly arranged at the lower end of the screw, and the upper side surface of the nut is in contact with the lower side surface of the bracket.

[0010] The utility model is further configured such that the arc-shaped depression on the upper side of the bracket cooperates with the peripheral side of the valve member, and the connecting pipe of the spray head thereof passes through the middle position of the bracket.

[0011] The utility model is further configured that the delivery pipe is connected to a fire-fighting pipe in the assembled lithium battery, and the delivery pipe cooperates with a plurality of the suspension spray assemblies.

[0012] The utility model is further configured such that the suspension spray assembly is located between the lithium battery modules, and the suspension spray assembly is equidistantly suspended and fixed below the bridge frame.

[0013] The utility model is further configured that a spray panel is movably provided on the lower side of the spray head, and the spray panel is evenly distributed with spray holes.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a suspension spray assembly to spray fire extinguishing for the containerized lithium battery, so as to achieve timely handling of the fire and prevent the fire from spreading. When a fire is sensed in the containerized lithium battery, the external control end controls the start of the control box, and the control box drives the valve stem to rotate. Under the action of the valve stem, the valve member opens, and the water in the delivery pipe is delivered to the spray head through the valve member, and then forms a low-pressure water mist, so as to achieve fire extinguishing treatment for the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure end face of the utility model;

[0018] Figure 3 It is a side schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1, bridge; 2, delivery pipe; 3, suspension spray assembly; 31, bracket; 32, valve member; 33, spray head; 34, screw; 35, nut; 36, arc frame; 37, valve stem; 38, suspension rod; 39, suspension; 310, control box; 311, ear seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0021] See also Figure 1-3 , in the figure: This embodiment is a preferred implementation of the technical solution, a lithium battery dual low-pressure fine water mist fire extinguishing system, including a suspension spray assembly 3 for containerized lithium battery fire extinguishing, a bridge 1 for linear installation of its suspension spray assembly 3, and a delivery pipe 2 for low-pressure water supply of the suspension spray assembly 3; the suspension spray assembly 3 includes a valve member 32 sleeved on the outside of the delivery pipe 2, a spray head 33 connected to the water outlet of the valve member 32, a valve stem 37 for opening and closing control of the valve member 32, a control box 310 connected to the valve stem 37, a suspension 39 for fixing the control box 310, and an ear seat 311 fixed to the edge of the suspension 39, wherein the ear seat 311 is fixed below the bridge 1;

[0022] It should be noted that in the lithium battery dual low-pressure fine water mist fire extinguishing system involved in the present application, a suspension spray assembly 3 is set to spray the containerized lithium battery for fire extinguishing, so as to achieve timely handling of the fire and prevent the fire from spreading. When a fire is sensed in the containerized lithium battery, the external control end controls the start of the control box 310, and the control box 310 drives the valve stem 37 to rotate. Under the action of the valve stem 37, its valve member 32 opens, and the water in the delivery pipe 2 is delivered to the spray head 33 through the valve member 32, and then forms a low-pressure water mist to achieve fire extinguishing treatment of the lithium battery.

[0023] Among them Figure 1 As shown, the control box 310 is connected to the external control terminal, and a plurality of the control boxes 310 are arranged in parallel;

[0024] It should be noted that: the control box 310 has a built-in micro motor structure for driving the rotation of the valve stem 37. The start and stop control of the micro motor is affected by the external control end. The external control end controls the operation of the control box 310 according to the fire alarm of the packaged lithium battery (this control method is a relatively mature technology at present and is not described in further detail here). Some of the control boxes 310 are arranged in parallel relative to the external control end, and some of the control boxes 310 are arranged in series relative to the delivery pipe 2. When in use, the switch of the control box 310 at the corresponding position is determined according to the actual fire extinguishing needs.

[0025] Among them Figure 2 As shown, a suspension rod 38 is provided on the lower side of the ear seat 311, and a nut 35 is integrally connected to the lower end of the suspension rod 38, and an arc frame 36 is fixed to the inner side of the nut 35, and the valve stem 37 is penetrated in the middle of the arc frame 36; a screw rod 34 is fixed to the bottom of the nut 35, and a bracket 31 is matched with the bottom of the screw rod 34, and a nut is threadedly provided on the lower end of the screw rod 34, and the upper side of the nut is in contact with the lower side of the bracket 31; the arc-shaped depression on the upper side of the bracket 31 is matched with the peripheral side of the valve member 32, and the connecting pipe of the spray head 33 passes through the middle position of the bracket 31;

[0026] It should be noted that after the ear seat 311 is fixed to the bridge frame 1, the overall position of the suspension spray assembly 3 is fixed, and the suspension structure composed of the suspension rod 38 and the nut 35 is used for the installation and fixation of the arc frame 36, and the arc frame 36 is used for the installation and fixation of the valve stem 37, and the connection and fixation between the screw rod 34 and the nut 35, and the installation and fixation of the nut are coordinated to realize the fixation of the bracket 31, and the bracket 31 is used for supporting and fixing the valve component 32, and the valve component 32 is used to spray the fire water in the delivery pipe 2 in the form of water mist through the spray head 33.

[0027] Among them Figure 3 As shown, the delivery pipe 2 is connected to the fire-fighting pipe in the lithium battery container, and the delivery pipe 2 cooperates with a plurality of the suspension spray assemblies 3; the suspension spray assemblies 3 are located between the lithium battery modules, and the suspension spray assemblies 3 are equidistantly suspended and fixed below the bridge 1; a spray panel is movably provided on the lower side of the spray head 33, and the spray panel is evenly distributed with spray holes;

[0028] It should be noted that: when a fire occurs in the containerized lithium battery module, the fire-fighting pipe automatically delivers water, and the delivery pipe 2 gradually delivers the fire-fighting water to the suspension spray assembly 3. The spray panel movably arranged on the lower side of the spray head 33 is used to adjust the size of the water mist. The water mist sprayed from the spray hole is scattered onto the surrounding lithium battery body, thereby realizing the fire treatment of the lithium battery.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A lithium battery dual low-pressure fine water mist fire extinguishing system, comprising a suspension spray assembly (3) for containerized lithium battery fire extinguishing, a bridge (1) for linearly mounting the suspension spray assembly (3), and a delivery pipe (2) for low-pressure water supply to the suspension spray assembly (3); characterized in that: The suspension spray assembly (3) comprises a valve member (32) sleeved on the outside of the delivery pipe (2), a spray head (33) connected to a water outlet of the valve member (32), a valve stem (37) used for opening and closing control of the valve member (32), a control box (310) connected to the valve stem (37), a suspension (39) used for mounting and fixing the control box (310), and an ear seat (311) fixed to an edge of the suspension (39), wherein the ear seat (311) is fixed below the bridge (1).

2. A lithium battery dual low-pressure water mist fire extinguishing system according to claim 1, characterized in that: The control box (310) is connected to an external control terminal, and a plurality of the control boxes (310) are arranged in parallel.

3. A lithium battery dual low-pressure water mist fire extinguishing system according to claim 1, characterized in that: A suspension rod (38) is provided on the lower side of the ear seat (311), the lower end of the suspension rod (38) is integrally connected with a nut (35), and an arc-shaped frame (36) is fixed on the inner side of the nut (35), and the valve stem (37) is inserted into the middle of the arc-shaped frame (36).

4. A lithium battery dual low-pressure water mist fire extinguishing system according to claim 3, characterized in that: A screw rod (34) is fixed to the bottom of the nut (35), a bracket (31) is provided at the bottom of the screw rod (34), and a nut is provided on the lower thread of the screw rod (34), and the upper side of the nut is in contact with the lower side of the bracket (31).

5. A lithium battery dual low-pressure water mist fire extinguishing system according to claim 4, characterized in that: The arc-shaped recess on the upper side of the bracket (31) cooperates with the peripheral side of the valve member (32), and the connecting pipe of the spray head (33) passes through the middle position of the bracket (31).

6. A lithium battery dual low-pressure water mist fire extinguishing system according to claim 1, characterized in that: The delivery pipe (2) is connected to a fire-fighting pipe in the assembled lithium battery, and the delivery pipe (2) cooperates with a plurality of the suspension spray assemblies (3).

7. A lithium battery dual low-pressure water mist fire extinguishing system according to claim 1, characterized in that: The suspension spray assembly (3) is located between the lithium battery modules, and the suspension spray assembly (3) is suspended and fixed at equal distances below the bridge frame (1).

8. A lithium battery dual low-pressure water mist fire extinguishing system according to claim 1, characterized in that: A spray panel is movably provided on the lower side of the spray head (33), and the spray panel is evenly distributed with spray holes.

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