Container fire extinguishing system

Abstract

The utility model discloses a fire extinguishing system for a container. The fire extinguishing system for the container comprises a box body, a plurality of pressure relief plates and a spraying assembly, specifically, a containing space is formed in the box body, a plurality of pressure relief openings are formed in the box body, the pressure relief openings are communicated with the containing space, and the adjacent pressure relief openings are spaced from each other; the pressure relief plate covers the pressure relief opening and is connected with the box body; the spraying assembly comprises a water pipe arranged in the containing space and a plurality of spraying heads, the spraying heads communicate with the water pipe, and the water pipe is arranged between the at least two pressure relief openings. And when the air pressure in the box body is too high and the pressure release valve is damaged, the leaked air flow cannot damage the water pipe, so that the spraying system can normally work before and after pressure release.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field especially, relates to a container fire fighting system. BACKGROUND

[0002] The working process of the battery module is accompanied by heat generation. In some special cases such as thermal runaway of the battery, the battery module will release a large amount of heat and gas in a short time. The high-temperature gas will rapidly raise the air pressure of the space where the battery module is located. The prior art has a solution to this problem. A plurality of pressure relief holes are usually opened on the wall of the accommodating cavity, or a pressure relief plate is installed. When the air pressure rises, the gas is discharged through the pressure relief holes or by breaking the pressure relief plate to avoid explosion. However, the process of relieving the pressure of the cavity is accompanied by rapid airflow. This process has a probability of damaging the spray assembly in the same room as the battery module, thereby affecting the subsequent development of fire fighting operations. SUMMARY

[0003] One object of the utility model is to provide a container fire fighting system, which aims to solve the technical problem that high-speed airflow may damage fire fighting facilities and cause emergency failure after explosion in the container loaded with the battery module.

[0004] To achieve the above object, the utility model provides a scheme: a container fire fighting system, which comprises a box body, a plurality of pressure relief plates and a spray assembly. Specifically, an accommodating space is formed in the box body, a plurality of pressure relief openings are opened on the box body, the pressure relief openings and the accommodating space are communicated, and adjacent pressure relief openings are spaced from each other; the pressure relief plate covers the pressure relief opening and is connected with the box body; the spray assembly comprises a water pipe arranged in the accommodating space and a plurality of spray heads, the plurality of spray heads are communicated with the water pipe, and the water pipe is arranged between at least two pressure relief openings.

[0005] In some embodiments, the pressure relief plate comprises a plate body and a reinforcing frame, the reinforcing frame is arranged around the edge of the plate body, and the reinforcing frame is connected with the box body.

[0006] In some embodiments, the reinforcing frame comprises a first frame and a second frame, the first frame is arranged on one edge of the plate body, the second frame is arranged around the remaining edges of the plate body, and the two ends of the first frame are arranged at intervals with the two ends of the second frame.

[0007] In some embodiments, the plurality of pressure relief openings are arranged on the same side of the box body, and the first frame and the second frame of the plurality of pressure relief plates are arranged alternately; and / or, the inner angle of the corner of the second frame is provided with a circular arc transition.

[0008] In some embodiments, the plate body comprises a plurality of sub-plate bodies, and each sub-plate body is spliced to form the plate body; or a plurality of grooves are formed on the plate body, and the grooves are V-shaped grooves.

[0009] In some embodiments, the spraying assembly further comprises a sleeve, the water pipes are multiple, and the adjacent water pipes are connected and communicated through the sleeve.

[0010] In some embodiments, the sleeve comprises a bend pipe and a reinforcing pin, two ends of the reinforcing pin are fixedly connected with the bend pipe, and an extension direction of the reinforcing pin is parallel to a direction of a line connecting two ends of the bend pipe.

[0011] In some embodiments, the pressure relief ports are arranged at the top of the box body, the water pipes comprise an inlet pipe, a vertical pipe and a horizontal pipe, the inlet pipe is arranged at the bottom of the box body, the horizontal pipe is arranged at the top of the box body, the vertical pipe connects the horizontal pipe and the inlet pipe, and the horizontal pipe passes through between two adjacent pressure relief ports.

[0012] In some embodiments, the container fire extinguishing system further comprises a control assembly, the control assembly comprises a fire cable and multiple detection probes communicated with the fire cable, and the multiple detection probes are distributed in the containing space.

[0013] In some embodiments, the detection probes comprise one or more of a smoke detector, a hydrogen detector and a carbon monoxide detector; and / or, part of the fire cable is attached to a corner of the box body.

[0014] The container fire extinguishing system has the advantages that:

[0015] The box body is used for loading a battery module, the battery module and the spraying assembly are arranged in the containing space, when the battery module has an unexpected situation and needs to be handled by fire fighting, fire fighting water is supplied to the multiple spraying heads through the water pipes to realize spraying and fire extinguishing, when the air pressure in the box body sharply rises due to thermal runaway of the battery module or other reasons, because the containing space is communicated with the pressure relief ports, the pressure relief plate is damaged, and airflow is discharged from the pressure relief ports to realize the pressure relief function.

[0016] Because part of the water pipes passes through between two pressure relief ports, when the airflow breaks the pressure relief plate and is discharged outward, the water pipes are pressed against the inner wall of the box body, the damage of the airflow to the fire fighting facilities caused by the accident is effectively avoided, the spraying assembly can normally work before and after the pressure relief, and the fire fighting failure caused by the damage of the spraying assembly is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative labor.

[0018] Figure 1 is a whole structure schematic view of the container fire extinguishing system provided by the embodiments of the present application;

[0019] Figure 2 It is along Figure 1 Schematic diagram of the cross section of line AA in the middle;

[0020] Figure 3 This is a schematic diagram showing the cooperation relationship between the spray assembly and the pressure relief plate provided in this embodiment of the utility model;

[0021] Figure 4 yes Figure 3 A magnified view of a portion of region B in the middle;

[0022] Figure 5 yes Figure 3 A magnified view of a portion of region C in the middle;

[0023] Figure 6 yes Figure 3 A magnified view of a portion of region D in the middle;

[0024] Figure 7 This is a schematic diagram showing the cooperation relationship between the spray assembly, control assembly, and pressure relief plate provided in another embodiment of this utility model.

[0025] Explanation of icon numbers:

[0026] 10. Enclosure; 11. Accommodation space; 12. Pressure relief port; 20. Pressure relief plate; 21. Panel; 211. Groove; 22. Reinforced frame; 221. First frame; 222. Second frame; 30. Sprinkler assembly; 31. Water pipe; 311. Inlet pipe; 312. Riser; 313. Horizontal pipe; 32. Sprinkler head; 33. Sleeve; 331. Bend; 332. Reinforcing pin; 40. Control assembly; 41. Fire protection cable; 42. Detection probe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the overall structure of the container fire protection system provided in this embodiment of the utility model; Figure 2 It is along Figure 1 Schematic diagram of the cross section of line AA in the middle; Figure 3 This is a schematic diagram showing the cooperation relationship between the spray assembly 30 and the pressure relief plate 20 provided in this embodiment of the utility model.

[0029] The utility model embodiment provides a kind of container fire-fighting system, the container fire-fighting system includes box 10, multiple pressure relief plate 20 embedded in box 10 and accommodate in the spray assembly 30 of box 10 in box 10.

[0030] Specifically, accommodating space 11 is formed in box 10, multiple pressure relief ports 12 are opened on box 10, pressure relief port 12 and accommodating space 11 are communicated, adjacent pressure relief ports 12 are spaced from each other;Pressure relief plate 20 covers pressure relief port 12 and is connected with box 10;Spray assembly 30 includes water pipe 31 and multiple spray heads 32 arranged in accommodating space 11, multiple spray heads 32 are communicated with water pipe 31, and water pipe 31 is arranged between at least two pressure relief ports 12.

[0031] Water pipe 31 is configured according to actual use demand, and its temperature resistance, frost resistance, corrosion resistance and pressure resistance are adjusted according to actual application scene, and the material can be selected from rubber, PVC and polyethylene, and the diameter can be selected from 50mm, 65mm, 80mm and 100mm.

[0032] In order to better explain the principle of the utility model, the use mode of the container fire-fighting system provided in the embodiment is explained as follows, but it does not mean that the embodiment can only be used in the following way, and other technical personnel in the art can realize the use and improvement without creative labor, which should be regarded as the protection scope of the utility model. The battery module is accommodated in the accommodating space 11 of box 10, preferably, multiple containers are placed side by side in single layer, and pressure relief port 12 is arranged at the top of box 10 as shown in the figure;When the battery module loses control, a large amount of gas is generated in box 10, and the temperature rises rapidly, the high-temperature gas further increases the gas pressure of accommodating space 11, until the gas pressure exceeds the safety threshold of pressure relief plate 20, the pressure relief plate 20 is damaged, and the gas is discharged from pressure relief port 12, so that the internal pressure of box 10 is reduced;Fire water or fire extinguishing agent is delivered from water pipe 31 to spray head 32, and then sprayed in box 10 to achieve fire extinguishing or temperature reduction.

[0033] In the process of high-temperature and high-pressure gas from the containment space 11 to the outside, the high-speed flowing gas will generate a greater force on the components along the way, including the positive impact and the side friction. For the existing container fire extinguishing system, this process is more likely to cause damage to the water pipe 31, especially the transverse water pipe 31 arranged on the top of the box 10, which is directly impacted by the airflow, and has a greater possibility of being damaged. Once the water pipe 31 is damaged, the spray head 32 cannot receive the supply of fire-fighting water, and the subsequent spraying operation cannot be carried out. In the container fire extinguishing system provided by the embodiment, the transverse water pipe 31 arranged on the top of the box 10 passes between the two pressure relief openings 12. On the one hand, because the water pipe 31 is not on the pressure relief flow path of the airflow, it is less directly impacted, and the strength of the water pipe 31 itself can better load this impact. On the other hand, the airflow pushes the water pipe 31 against the inner wall surface of the box 10 between the two pressure relief openings 12, which stabilizes the state of the water pipe 31 to some extent, making the water pipe 31 less likely to be damaged.

[0034] Therefore, the spraying system of the container fire extinguishing system provided by the embodiment can ensure the integrity of the water pipe 31 before and after the triggering of the pressure relief plate 20, and ensure the normal operation of the spraying operation.

[0035] Please refer to Figure 4 , Figure 4 is Figure 3 a local enlarged view of the B area in FIG. 8, which shows the overall structure of the pressure relief plate 20 of the embodiment of the utility model.

[0036] In some embodiments, the pressure relief plate 20 includes a plate body 21 and a reinforcing frame 22, the reinforcing frame 22 is arranged around the edge of the plate body 21, and the reinforcing frame 22 is connected with the box 10.

[0037] The arrangement of the reinforcing frame 22 can further set the damage of the pressure relief plate 20, and according to the different shapes of the reinforcing frame 22, the fragmentation mode of the pressure relief plate 20 is guided in different directions. For example, the closed reinforcing frame 22 can make the damage of the pressure relief plate 20 limited to the part of the plate body 21 surrounded by the reinforcing frame 22, and not extend outward; and the one-side open reinforcing frame 22 can guide the crack of the pressure relief plate 20 to extend to the opening side.

[0038] Further, the reinforcing frame 22 includes a first frame 221 and a second frame 222, the first frame 221 is arranged on one side of the plate body 21, and the second frame 222 is arranged around the remaining edges of the plate body 21, and the two ends of the first frame 221 are arranged in a spaced manner with the two ends of the second frame 222.

[0039] It is set Figure 4The edge of the plate body 21 corresponding to the first frame 221 is a first edge, and the other edge of the plate body 21 opposite to the first edge is a second edge. In this embodiment, when the plate body 21 is impacted, the part of the first edge between the first frame 221 and the second frame 222 can only rely on the strength of the material itself to resist the tensile stress caused by the impact; when the plate body 21 is impacted, in addition to the strength of the material itself, the force of the second frame 222 can also balance part of the impact stress, so that the second edge is less likely to be damaged than the first edge, and the detonation direction of the pressure relief plate 20 can be preset.

[0040] In addition, the gap between the first frame 221 and the second frame 222 itself can also serve as a kind of foolproof structure to facilitate directional assembly.

[0041] It should be noted that the above analysis is based on the premise that the plate body 21 and other components are not additionally provided. In some special cases, by means such as thinning the side of the second edge and the second frame 222, the pressure relief plate 20 can also be cracked from the opposite side of the first frame 221.

[0042] Furthermore, a plurality of pressure relief openings 12 are arranged on the same side of the box body 10, and the first frame 221 and the second frame 222 of the plurality of pressure relief plates 20 are arranged alternately in sequence.

[0043] In this embodiment, the first frame 221 of each pressure relief plate 20 is located on the same side of the corresponding plate body 21, so that when the internal pressure of the box body 10 is too large, each pressure relief plate 20 detonates in the same direction, which is more conducive to management.

[0044] Optionally, the inner corner of the corner of the second frame 222 is provided with a circular arc transition.

[0045] Because the second frame 222 needs to share some tensile stress with the plate body 21, which makes the second frame 222 also has the risk of cracking, and the corner of the second frame 222 has stress concentration, which is a structural weak point of the entire second frame 222. Therefore, the inner corner of the corner of the second frame 222 is provided with a circular arc transition, so that the second frame 222 has higher structural strength and is less likely to crack.

[0046] In some embodiments, the plate body 21 includes a plurality of sub-plate bodies 21, and each sub-plate body 21 is spliced to form the plate body 21.

[0047] When the plate body 21 is impacted, the structural strength of the spliced joint of each sub-plate body 21 is much smaller than the average strength of the plate body 21, the connection relationship of each sub-plate body 21 is destroyed, and the airflow is discharged from between the sub-plate bodies 21.

[0048] Alternatively, a plurality of notches 211 are formed on the plate body 21, and the notches 211 are V-shaped grooves. Please refer to Figure 5 ,Figure 5 is Figure 3 is a partial enlarged view of the C region in the middle, showing the local details of the groove 211 in the embodiment of the utility model.

[0049] The V-shaped groove 211 makes the plate body 21 have a greater degree of stress concentration at the bottom of the groove 211 when impacted, promoting the fragmentation of the plate body 21.

[0050] Please see Figure 6 , Figure 6 is Figure 3 is a partial enlarged view of the D region in the middle, showing the cooperation relationship between the water pipes 31 and the sleeve pipes 33 in the embodiment of the utility model.

[0051] In some embodiments, the spraying assembly 30 further comprises sleeve pipes 33, and the water pipes 31 are multiple, and adjacent water pipes 31 are connected and conducted through the sleeve pipes 33.

[0052] The bending part of the water pipe 31 is more vulnerable to damage, and in the embodiment, the sleeve pipe 33 is used to connect the water pipes 31, thereby enhancing the structural strength of the connection between the water pipes 31, so that the spraying system is less likely to be damaged.

[0053] Further, the sleeve pipe 33 comprises an elbow pipe 331 and a reinforcing pin 332, two ends of the reinforcing pin 332 are fixedly connected with the elbow pipe 331, and the extension direction of the reinforcing pin 332 is parallel to the direction of the line connecting the two ends of the elbow pipe 331.

[0054] The inner side of the elbow pipe 331 will bear a greater stress when the water pipe 31 is impacted, especially at the angle shown in the figure, when the included angle between the two water pipes 31 connected by the elbow pipe 331 has a trend of increasing, the inner side of the elbow pipe 331 bears a greater tensile stress, and the setting of the reinforcing pin 332 shares part of the tensile stress, thereby reducing the risk of the elbow pipe 331 being pulled apart.

[0055] In some embodiments, the pressure relief port 12 is arranged at the top of the box body 10, the water pipe 31 comprises a water inlet pipe 311, a vertical pipe 312 and a horizontal pipe 313, the water inlet pipe 311 is arranged at the bottom of the box body 10, the horizontal pipe 313 is arranged at the top of the box body 10, the vertical pipe 312 connects the horizontal pipe 313 and the water inlet pipe 311, and the horizontal pipe 313 passes between two adjacent pressure relief ports 12.

[0056] The water inlet pipe 311 is arranged at the bottom of the box body 10 to facilitate its connection with an external water source, and the horizontal pipe 313 passes between adjacent pressure relief ports 12, thereby effectively reducing the risk of the horizontal pipe 313 being blown apart, and prolonging the service life of the spraying system.

[0057] Please see Figure 7 , Figure 7 is a cooperation relationship diagram of the spraying assembly 30, the control assembly 40 and the pressure relief plate 20 provided by another embodiment of the utility model.

[0058] In some embodiments, the container fire-fighting system further comprises a control assembly 40, the control assembly 40 comprising a fire-fighting cable 41 and a plurality of detection probes in communication with the fire-fighting cable 41, the plurality of detection probes distributed in the accommodation space 11.

[0059] When the detection probes detect that the parameters in the accommodation space 11 exceed the threshold value, feedback to the control system through the fire-fighting cable 41, and then control the start and stop of the spraying assembly 30 by the control system, and put out the fire hazard in advance before the situation worsens.

[0060] Further, the detection probes include one or more of a smoke detector, a hydrogen detector and a carbon monoxide detector.

[0061] The smoke detector, the hydrogen detector and the carbon monoxide detector can all monitor the environment in the box 10, especially the situation of uncontrolled battery, to achieve timely discovery and processing of unexpected situations.

[0062] Further, part of the fire-fighting cable 41 is attached to the corner of the box 10.

[0063] Similar to the water pipe 31, the fire-fighting cable 41 has a risk of being damaged during the pressure relief process after the pressure relief plate 20 is broken, so part of the fire-fighting cable 41, especially the part located at the top of the box 10, is attached to the corner inside the box 10, so that when the airflow rushes outwards, the fire-fighting cable 41 is pressed against the corner of the box 10 by the airflow, thereby providing a certain stabilizing effect.

[0064] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0065] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a centering element present at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a centering element.

[0066] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0067] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A fire extinguishing system for a container, characterized in that The container fire-fighting system comprises: a box forming a containing space, a plurality of pressure relief openings being formed on the box and communicating with the containing space, adjacent pressure relief openings being spaced apart from each other; a plurality of pressure relief plates covering the pressure relief openings and connected with the box; a spraying assembly comprising a water pipe arranged in the containing space and a plurality of spray heads in communication with the water pipe, the water pipe being arranged between at least two adjacent pressure relief openings.

2. A container fire extinguishing system according to claim 1, characterised in that, The pressure relief plate comprises a plate body and a reinforcing frame surrounding the edges of the plate body, the reinforcing frame being connected with the box.

3. A container fire extinguishing system according to claim 2, characterised in that, The reinforcing frame comprises a first frame arranged on one edge of the plate body and a second frame surrounding the remaining edges of the plate body, the two ends of the first frame being spaced apart from the two ends of the second frame.

4. A container fire extinguishing system according to claim 3, characterised in that, The plurality of pressure relief openings are arranged on the same side of the box, the first frames and the second frames of the plurality of pressure relief plates being arranged alternately; and / or the inner angles of the corners of the second frame are provided with arc transitions.

5. The container fire extinguishing system of claim 2, wherein, The plate body comprises a plurality of sub-plate bodies, each sub-plate body being combined to form the plate body; or the plate body is provided with a plurality of notches, the notches being V-shaped notches.

6. The container fire suppression system of claim 1, wherein, The spraying assembly further comprises a sleeve pipe, the water pipe having a plurality of water pipes, adjacent water pipes being connected and in communication through the sleeve pipe.

7. A container fire extinguishing system according to claim 6, characterised in that, The sleeve pipe comprises a bend pipe and a reinforcing pin, the two ends of the reinforcing pin being fixedly connected with the bend pipe, the extension direction of the reinforcing pin being parallel to the direction of the line connecting the two ends of the bend pipe.

8. A fire extinguishing system for a container according to any one of claims 1-7, characterized in that The pressure relief openings are arranged on the top of the box, the water pipe comprising a water inlet pipe, a vertical pipe and a horizontal pipe, the water inlet pipe being arranged on the bottom of the box, the horizontal pipe being arranged on the top of the box, the vertical pipe connecting the horizontal pipe and the water inlet pipe, the horizontal pipe passing through between two adjacent pressure relief openings.

9. The container fire suppression system of claim 1, wherein, The container fire-fighting system further comprises a control assembly, the control assembly comprising a fire-fighting cable and a plurality of detection probes in communication with the fire-fighting cable, the plurality of detection probes being distributed in the containing space.

10. A container fire extinguishing system according to claim 9, characterised in that, The detection probe comprises one or more of a smoke detector, a hydrogen detector and a carbon monoxide detector; and / or part of the fire-fighting cable is attached to the corners of the box.

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