Water mist curtain suppression device for fire hazard of electric vehicle in underground garage

Abstract

The utility model provides an underground garage electric automobile fire disaster water mist curtain suppression device which comprises a first seamless steel pipe, a second seamless steel pipe, a first nozzle and a second nozzle. A plurality of first nozzles are installed on the first seamless steel pipe at equal intervals through a first bent pipe and an internal thread straight-through part, a plurality of second nozzles are installed on the second seamless steel pipe at equal intervals through a second bent pipe and the internal thread straight-through part, and third seamless steel pipes vertically communicate with the outer side ends of the first seamless steel pipe and the second seamless steel pipe correspondingly. A round plate is arranged at the top end of the third seamless steel pipe, and a fourth seamless steel pipe is arranged at the outer side end of the second seamless steel pipe. According to the underground garage, the existing fire-fighting equipment is combined, a fire disaster can be controlled within a small range, the fire-fighting safety of the underground garage is remarkably improved, the fireproof capacity of the underground garage can be greatly improved, and damage caused by accidents is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire protection engineering, and particularly relates to a water mist curtain suppression device for electric vehicle fires in underground garages. Background Technique

[0002] New energy vehicles are mainly divided into pure electric vehicles (completely dependent on battery power), hybrid vehicles (using both electricity and other forms of energy), and fuel cell vehicles (using hydrogen or other renewable energy as fuel). In the statistically released new energy vehicle fire accidents, most of the vehicle types are pure electric vehicles, which is directly related to the fire characteristics of pure electric vehicles, such as being difficult to detect, having a high risk of fire reignition, producing a large amount of toxic smoke, and high toxicity.

[0003] A large number of fire entity experiments and accident cases show that the thermal runaway behavior of vehicle lithium-ion batteries is an important cause of electric vehicle fire accidents. Due to the unique chemical composition of lithium-ion power batteries and their special properties as electrical energy storage and conversion media, when encountering overcharging, overheating, short-circuiting, collision or extrusion, etc., it is very likely to cause thermal runaway, followed by battery smoking, fire, or even explosion. Moreover, when lithium-ion batteries undergo thermal runaway, a large amount of combustible vapor will be released, and these combustible substances will form a jet flame in a high-temperature environment, and its heat and flame are extremely easy to spread to the cockpit and cause the whole vehicle to burn.

[0004] Due to the thermal runaway tendency of power batteries, the fire behavior of pure electric vehicles is very special. The existing fire prevention technical measures can play a very good suppression and extinguishing effect on traditional fuel vehicles. However, when a pure electric vehicle catches fire, the lithium battery pack is blocked by the vehicle body, and the existing sprinkler system cannot directly act the water source on the bottom of the vehicle body, making it difficult to suppress the development of the fire in the first time. Moreover, the continuous jet flame in the fire of pure electric vehicles is likely to cause the fire to spread to adjacent vehicles. Water mist has the advantages of advanced fire extinguishing mechanism, wide fire extinguishing range, high cooling efficiency, no equipment pollution, no environmental pollution, and wide source. The particle size of water mist is crucial for its fire extinguishing effect. Fine water mist particle size can more effectively absorb heat, thereby quickly cooling the surface of the combustible. If a certain pressure is given to the water mist, the cooling and suppression effect on the flame will be better.

[0005] The fire water curtain water supply system is an automatic sprinkler fire protection system that sprays water into a curtain shape to cool simple fire separation structures, improve their fire resistance performance, or prevent flames from passing through the opening parts, and directly serves as a fire separation, which can effectively cut, suppress, insulate heat, and cool the flame.

[0006] Based on this, a water mist curtain suppression device for electric vehicle fires in underground garages is proposed. Content of the Utility Model

[0007] The technical problem to be solved by the present utility model is to provide a water mist curtain suppression device for electric vehicle fires in underground garages in view of the deficiencies of the above-mentioned prior art, so as to solve the problems raised in the above background art.

[0008] To solve the above technical problems, the technical solution adopted by the present utility model is: a water mist curtain suppression device for electric vehicle fires in underground garages, including a first seamless steel pipe, a second seamless steel pipe, a first nozzle and a second nozzle;

[0009] The first seamless steel pipe and the second seamless steel pipe are fixedly connected and communicated with each other through a clamp quick joint. A plurality of first nozzles are installed on the first seamless steel pipe at equal intervals through a first elbow pipe and an internal thread straight-through. A plurality of second nozzles are installed on the second seamless steel pipe at equal intervals through a second elbow pipe and an internal thread straight-through;

[0010] Both outer ends of the first seamless steel pipe and the second seamless steel pipe are vertically communicated with a third seamless steel pipe, and a round plate is arranged at the top end of the third seamless steel pipe;

[0011] A fourth seamless steel pipe is arranged at the outer end of the second seamless steel pipe. A double internal thread is arranged at the outer end of the fourth seamless steel pipe, and a handle is also arranged on the fourth seamless steel pipe.

[0012] As a further description of the present utility model, a first base is arranged at the bottom end of the first seamless steel pipe, and a second base is arranged at the bottom end of the second seamless steel pipe.

[0013] As a further description of the present utility model, wheels are also installed on the outer end of the first seamless steel pipe through a wheel mounting seat.

[0014] As a further description of the present utility model, one or two first seamless steel pipes are provided, and the number of the second seamless steel pipes is the same as that of the first seamless steel pipes.

[0015] As a further description of the present utility model, when two first seamless steel pipes and two second seamless steel pipes are provided, the two first seamless steel pipes are arranged in parallel, and the two first seamless steel pipes are communicated with each other through a fifth seamless steel pipe. The two second seamless steel pipes are also arranged in parallel, and the second seamless steel pipes are communicated with each other through a sixth seamless steel pipe.

[0016] As a further description of the present utility model, the double internal thread is used to connect a fire hydrant interface.

[0017] As a further description of the present utility model, the first nozzle controls the Dv90 particle size of the water mist within 500 μm to 600 μm; the Dv50 particle size is controlled below 300 μm, and the second nozzle has the same structure as the first nozzle.

[0018] The utility model has the following advantages compared with the prior art:

[0019] Combined with the existing fire-fighting facilities, the utility model can control the fire within a smaller range, significantly improve the fire safety of the underground garage, greatly enhance the fire prevention ability of the underground garage, and reduce the injuries caused by accidents. Description of the Drawings

[0020] Figure 1 is the front view of the device in the utility model;

[0021] Figure 2 is the top view of the device in the utility model;

[0022] Figure 3 is the sectional view of the device in the utility model;

[0023] Figure 4 is the front view of another assembled structure in the embodiment of the utility model;

[0024] Figure 5 is the sectional view of another assembled structure in the embodiment of the utility model;

[0025] Figure 6 is the system diagram of the water mist curtain suppression device for electric vehicle fires in the underground garage.

[0026] Description of the Reference Numerals:

[0027] 1 - First seamless steel pipe, 2 - First elbow, 3 - Female straight joint, 4 - First nozzle, 5 - First base, 6 - Circular plate, 7 - Wheel mounting seat, 8 - Wheel, 9 - Third seamless steel pipe, 10 - Handle, 11 - Double female thread, 12 - Fourth seamless steel pipe, 13 - Sixth seamless steel pipe, 14 - Second base, 15 - Second seamless steel pipe, 16 - Clamp quick connector, 17 - Second nozzle, 18 - Second elbow, 19 - Fifth seamless steel pipe, 20 - Fire hydrant interface. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0029] As Figure 1-6 shown, the utility model provides a technical solution: a water mist curtain suppression device for electric vehicle fires in an underground garage, comprising a first seamless steel pipe 1, a second seamless steel pipe 15, a first nozzle 4 and a second nozzle 17;

[0030] The first seamless steel pipe 1 and the second seamless steel pipe 15 are fixedly connected to each other through a clamp quick connector 16. A first base 5 is provided at the bottom end of the first seamless steel pipe 1, and a second base 14 is provided at the bottom end of the second seamless steel pipe 15.

[0031] A plurality of first nozzles 4 are equidistantly installed on the first seamless steel pipe 1 through a first elbow 2 and an internal thread straight-through 3. A plurality of second nozzles 17 are equidistantly installed on the second seamless steel pipe 15 through a second elbow 18 and an internal thread straight-through 3.

[0032] Third seamless steel pipes 9 are vertically connected to the outer ends of both the first seamless steel pipe 1 and the second seamless steel pipe 15. A round plate 6 is provided at the top end of the third seamless steel pipe 9.

[0033] A fourth seamless steel pipe 12 is provided at the outer end of the second seamless steel pipe 15. A double internal thread 11 is provided at the outer end of the fourth seamless steel pipe 12, and a handle 10 is also provided on the fourth seamless steel pipe 12.

[0034] A wheel 8 is also installed on the outer end of the first seamless steel pipe 1 through a wheel mounting seat 7, which is convenient for moving and using.

[0035] When one first seamless steel pipe 1 is provided, it forms a B-type structure. When two first seamless steel pipes 1 are provided, it forms an A-type structure. The number of the second seamless steel pipes 15 is the same as that of the first seamless steel pipes 1.

[0036] Among them, the A-type structure is heavier in weight and higher in connection strength than the B-type structure. The B-type structure is more rapid and stable in movement and is easier to assemble.

[0037] When two first seamless steel pipes 1 and two second seamless steel pipes 15 are provided, the two first seamless steel pipes 1 are arranged in parallel, and the two first seamless steel pipes 1 are connected to each other through a fifth seamless steel pipe 19. The two second seamless steel pipes 15 are also arranged in parallel, and the second seamless steel pipes 15 are connected to each other through a sixth seamless steel pipe 13.

[0038] The double internal thread 11 is used to connect to a fire hydrant interface 20.

[0039] The first nozzle 4 controls the Dv90 particle size of the water mist within 500 μm to 600 μm; the Dv50 particle size is controlled below 300 μm. The second nozzle 17 has the same structure as the first nozzle 4.

[0040] 1 - First seamless steel pipe, 2 - First elbow, 3 - Female straight joint, 4 - First nozzle, 5 - First base, 6 - Circular plate, 7 - Wheel mounting seat, 8 - Wheels, 9 - Third seamless steel pipe, 10 - Handle, 11 - Double female thread, 12 - Fourth seamless steel pipe, 13 - Sixth seamless steel pipe, 14 - Second base, 15 - Second seamless steel pipe, 16 - Clamp quick connector, 17 - Second nozzle, 18 - Second elbow, 19 - Fifth seamless steel pipe, 20 - Fire hydrant interface.

[0041] First, assemble the equipment. Taking the A - type structure as an example, the second seamless steel pipe 15 and the first seamless steel pipe 1 on both sides of the water mist curtain are connected through the fifth seamless steel pipe 19. Connect the first nozzle 4 and the second nozzle 17 to the female straight joint 3 on the water mist curtain pipeline, and connect the second seamless steel pipe 15 and the first seamless steel pipe 1 together through the clamp quick connector 16.

[0042] After assembly, use the handle 10 and the wheels 8. The wheels are fixed on the wheel mounting seat 7, and move the water mist curtain device to the fire - stricken car parking space. After placing it in position, the first base 5 and the second base 14 will play a supporting and fixing role.

[0043] Connect the fire hose to the fire hydrant interface 20 and the water divider, adjust the water flow rate, and then connect the fire hose, the water divider and the female pipe thread on the double female thread 11 of the water mist curtain. At this time, open the valves of the fire hydrant interface 20 and the water divider, and the water flow will pass through the fourth seamless steel pipe 12 and the sixth seamless steel pipe 13 to reach the second seamless steel pipe 15, the first seamless steel pipe 1 and the third seamless steel pipe 9. Subsequently, the water flow passes through the first elbow 2 to reach the first nozzle 4, and through the second elbow 18 to reach the second nozzle 17 for atomization. The Dv90 particle size of the atomized water mist is between 500μm and 600μm. There is a stainless - steel circular plate 6 at the upper end of the third seamless steel pipe 9 to prevent the water flow from gushing out and form a closed environment.

[0044] The first nozzle 4 and the second nozzle 17 spray water mist for fire extinguishing and blocking, controlling the fire within a smaller range and preventing the spread of the flame.

[0045] The B - type water mist curtain suppression device adopts a three - section design, which is convenient for transportation and assembly; the three - section curtain pipe group can be arbitrarily combined, with better expandability, and can be used in two - section combination or three - section combination according to needs.

[0046] The B - type water mist curtain suppression device adds a pair of pulley groups on the basis of the A - type water mist curtain suppression device, making the direction easier to control, and can move to the scene faster in case of sudden fire.

[0047] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water mist curtain suppression device for electric vehicle fire in an underground garage, characterized by: It comprises a first seamless steel pipe (1), a second seamless steel pipe (15), a first nozzle (4) and a second nozzle (17); The first seamless steel pipe (1) and the second seamless steel pipe (15) are fixedly connected to each other via a clamp quick connector (16); a plurality of first nozzles (4) are installed at equal intervals on the first seamless steel pipe (1) via a first elbow (2) and an internal thread straight-through (3); and a plurality of second nozzles (17) are installed at equal intervals on the second seamless steel pipe (15) via a second elbow (18) and an internal thread straight-through (3); The outer ends of the first seamless steel pipe (1) and the second seamless steel pipe (15) are vertically connected to a third seamless steel pipe (9), and a circular plate (6) is provided at the top end of the third seamless steel pipe (9); A fourth seamless steel pipe (12) is arranged at the outer end of the second seamless steel pipe (15), a double inner thread (11) is arranged at the outer end of the fourth seamless steel pipe (12), and a handle (10) is also arranged on the fourth seamless steel pipe (12).

2. The water mist curtain suppression device for electric vehicle fire in underground garage according to claim 1 is characterized in that: A first base (5) is provided at the bottom end of the first seamless steel pipe (1), and a second base (14) is provided at the bottom end of the second seamless steel pipe (15).

3. The water mist curtain suppression device for electric vehicle fire in underground garage according to claim 1 is characterized in that: The outer end of the first seamless steel pipe (1) is also equipped with a wheel (8) via a wheel mounting seat (7).

4. The water mist curtain suppression device for electric vehicle fire in underground garage according to claim 1 is characterized in that: The first seamless steel pipe (1) is provided in one or two pieces, and the number of the second seamless steel pipe (15) is the same as the number of the first seamless steel pipe (1).

5. The water mist curtain suppression device for electric vehicle fire in underground garage according to claim 4 is characterized in that: When two of the first seamless steel tubes (1) and the second seamless steel tubes (15) are provided, the two first seamless steel tubes (1) are provided in parallel with each other, and the two first seamless steel tubes (1) are connected to each other via a fifth seamless steel tube (19); the two second seamless steel tubes (15) are also provided in parallel with each other, and the second seamless steel tubes (15) are connected to each other via a sixth seamless steel tube (13).

6. The water mist curtain suppression device for electric vehicle fire in underground garage according to claim 1 is characterized in that: The double inner threads (11) are used to connect to the fire hydrant interface (20).

7. The water mist curtain suppression device for electric vehicle fire in underground garage according to claim 1 is characterized in that: The first nozzle (4) controls the particle size of the water mist Dv90 to 500 μm to 600 μm; the particle size of Dv50 is controlled to be below 300 μm. The second nozzle (17) has the same structure as the first nozzle (4).

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