Fire extinguishing device for new energy vehicle

Abstract

The invention relates to the technical field of new energy vehicle fire extinguishing, in particular to a new energy vehicle fire extinguishing device. Comprising a rectangular substrate; the substrate is basalt fiber cloth; the silica gel coating is coated on the surface of the basalt fiber cloth; the basalt woven water hose is of a tubular structure woven by basaltic fiber yarns, and the basalt woven water hose is fixed on the surface of the basaltic fiber cloth; a water inlet is at least formed in the short edge side of the base of the fiber woven water hose; a plurality of spraying holes; the spraying holes are formed in the surface of the basalt woven water bag at intervals. When a fire happens to the new energy vehicle, the new energy vehicle can be rapidly put into fire extinguishing, and the effects of rapidly and continuously cooling the burning vehicle and isolating air for fire extinguishing are achieved. Meanwhile, burning vehicles can be isolated, and fire is prevented from spreading to ignite other vehicles and combustible materials.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguishing for new energy vehicles, and in particular to a fire extinguishing device for new energy vehicles. Background Art

[0002] New energy vehicles have received a lot of attention because they are more environmentally friendly; in recent years, about 30% of consumers who intend to buy a car consider buying pure electric vehicles.

[0003] The causes of spontaneous combustion are very complex, with the characteristics of being easy to trigger, difficult to detect, and having multiple causes. Among them, the spontaneous combustion rate is the highest, which is closely related to the factors of the high-voltage power battery itself and the usage. The most widely used high-voltage power battery in pure electric vehicles is the ternary lithium battery. This type of lithium battery has the characteristics of high capacity density, small size, and very active chemical properties. The oxygen in the air can easily undergo a violent oxidation reaction with the lithium metal in the lithium battery, releasing a large amount of heat. If this heat cannot be effectively dissipated in time, spontaneous combustion will occur. Therefore, how to quickly extinguish electric vehicles that spontaneously combust is also a difficult problem. The current default measure is to let it burn. The specific reason is that battery spontaneous combustion is not a chemical reaction between combustibles and oxygen, so the traditional fire extinguishing principle of isolating air cannot be used. Even without oxygen, battery spontaneous combustion is still difficult to control, which also requires urgent technical improvement measures.

[0004] Therefore, when a vehicle catches fire, it is particularly important to quickly put out the fire to prevent greater casualties and property losses. Especially in open parking lots, residential areas, gas stations and charging stations, liquefied gas tank distribution stations, highway service areas and other places, when a car catches fire, the rapid spread of the fire will cause unimaginable harm. At the same time, when a car catches fire, the general approach is either to use the fire extinguisher on the car to put out the fire, or to call 119 for firefighters to rescue on the spot, and there is no effective fire extinguishing equipment.

[0005] The Chinese patent application number 202322655576.9 discloses a fire extinguishing hood for new energy vehicles. A fire extinguishing hood for new energy vehicles includes: a hood body, a hood cloth, a fire sensor, a drive device and a controller. The hood cloth is arranged around the hood body, the sensor assembly is connected to the input end of the controller, the output end of the controller is connected to the drive device, the drive device is connected to the hood cloth, a water pipe is arranged in the hood body, and the outlet of the water pipe is connected to the spray port on the side of the hood body facing the parking space; in this scheme, the drive device is used to control the storage and draping of the hood cloth. When there is no fire, the hood cloth is folded up to facilitate the normal entry and exit of the vehicle in the parking space. When a fire alarm message is received, the controller can automatically start the drive device to release the hood cloth, so that when a fire occurs, the new energy vehicle can be effectively blocked by the hood cloth in time to prevent the fire from continuing to develop. At the same time, the water pipe and the spray port are arranged to start water spraying and extinguishing the fire in the early stage of the fire, so that the early fire can be effectively controlled.

[0006] The above-mentioned fire extinguishing device is set in a fixed parking space, which is not very applicable. Similar to open-air parking spaces and roadside parking spaces, the installation of such fire extinguishing devices requires additional space, and each parking space needs to install this set of devices, which has a large cost investment and a low utilization rate, which easily leads to a waste of resources. Now there is a need for a fire extinguishing device that does not need to be laid in advance in each parking space, is portable enough, and can be quickly put into use to extinguish a fire when a new energy vehicle catches fire, so as to achieve the effect of rapid and continuous cooling of the burning vehicle and isolating the air to extinguish the fire. At the same time, it can isolate the burning vehicle to prevent the fire from spreading and igniting other vehicles and combustibles. Summary of the invention

[0007] The present invention provides a fire extinguishing device for new energy vehicles, which can solve the problems of waste of resources and low utilization rate caused by the fire extinguishing device being fixedly installed in a parking space to deal with fire, and makes the fire extinguishing device sufficiently portable.

[0008] In order to solve the above technical problems, the present application provides the following technical solutions: a fire extinguishing device for a new energy vehicle, comprising: Substrate: The substrate is rectangular; the substrate is basalt fiber cloth; Silicone coating: coated on the surface of basalt fiber cloth; Basalt braided water hose: The basalt braided water hose is a tubular structure woven from basalt fiber yarns, and the basalt braided water hose is fixed on the surface of basalt fiber cloth; the fiber braided water hose is provided with a water inlet at least on the short side of the base; A plurality of spray holes are provided at intervals on the surface of the basalt woven water bag.

[0009] The basic principle and beneficial effects of this scheme: The spontaneous combustion of new energy vehicles is usually caused by the heat released by the lithium battery not being removed in time, resulting in heat accumulation and combustion. That is, the ternary lithium battery, which is the power source of new energy vehicles, has high capacity density, small size, and very active chemical properties. The oxygen in the air can easily undergo a violent oxidation reaction with the lithium metal in the lithium battery, releasing a large amount of heat. If this heat cannot be effectively dissipated in time, spontaneous combustion will occur. Battery spontaneous combustion may also be caused by the following reasons, such as thermal runaway: an exothermic reaction occurs inside the battery, causing the temperature to rise. This reaction may be caused by internal short circuits, external short circuits, overcharging or over-discharging of the battery. Generation of combustible gases: As the temperature rises, the chemical reaction inside the battery accelerates, and the electrolyte decomposes to produce combustible gases such as hydrogen and methane.

[0010] Oxygen participation: The combustible gas inside the battery mixes with the oxygen inside the battery or leaked to the outside to form an explosive mixed gas. Ignition source: High-temperature particles or electric arcs inside the battery can serve as an ignition source to ignite the mixture of combustible gas and oxygen.

[0011] Flame propagation: Once ignition occurs, the flame can quickly spread within or around the battery, causing the battery casing to rupture and release more flammable gases, further intensifying the combustion. Thermal feedback loop: The heat generated by the burning battery further intensifies the chemical reaction inside the battery, forming a self-sustaining thermal feedback loop that makes the fire difficult to control.

[0012] In order to control the spread of fire, this solution is set up to cover the burning vehicle with a rectangular base made of basalt fiber cloth to isolate the outside oxygen. After the covering is completed, water is introduced into the basalt braided water hose through the water inlet, and the water is sprayed out from the spray hole. This process can extinguish the open fire. At the same time, the water will also take away the heat, that is, the fire is controlled from the two aspects of isolating the air and cooling the heat source, thereby improving the fire extinguishing strength.

[0013] Furthermore, it also includes two traction belts, which are symmetrically fixed on one side of the short side of the base.

[0014] Beneficial effects: When there is no fire, the basalt fiber cloth can be folded and stored, and can be bound by a traction belt to prevent it from spreading. At the same time, when a fire occurs, two people can also drag the traction belt to drag the basalt fiber cloth to a designated location.

[0015] Furthermore, the projection of the basalt braided water hose on the surface of the basalt fiber cloth is a rectangle, wherein two long sides of the rectangle are respectively connected with a basalt braided water hose extending to both sides of the short sides of the base to the water inlet and connected with the water inlet.

[0016] Furthermore, the basalt fiber cloth is made of basalt fiber yarn with a diameter of 9 μm to 17 μm and a linear density of 133 tex to 233 tex, and is woven in a plain, satin or twill weave manner; the surface density is 200 g / m2 to 400 g / m2.

[0017] Furthermore, the basalt fiber water hose is woven from basalt fiber yarns with a diameter of 9 μm to 17 μm and a linear density of 133 tex to 233 tex, and the diameter of the basalt fiber water hose is 60 to 70 mm.

[0018] Furthermore, the diameter of the spray holes is 4 mm to 5 mm, and the hole spacing is 300 mm to 500 mm.

[0019] Furthermore, the silicone coating is coated on one side or both sides of the basalt fiber cloth; when coating on one side, the content of the silicone coating is 15% to 17%, and the surface density of the coated cloth is 230 g / m2 to 468 g / m2 after completion; when coating on both sides, the content of the silicone coating is 30% to 34%, and the surface density of the coated cloth is 260 g / m2 to 536 g / m2 after completion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a fire extinguishing device for a new energy vehicle; Figure 2 It is a schematic diagram of the structure of the basalt braided water hose in Example 2; Figure 3 yes Figure 2 A magnified schematic diagram of center A. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods: The marks in the drawings of the specification include: basalt fiber cloth 1, basalt woven water hose 2, first water hose 21, first water channel 211, second water hose 22, second water channel 221, traction belt 3, water inlet 4, regulating water valve 5, first opening 61, second opening 611, third opening 62, fourth opening 621, slider 7, spring 8, slide 9, aisle 91, exchange bin 92, first exchange channel 931, second exchange channel 932, first one-way valve 9311, second one-way valve 9322.

[0022] Embodiment 1 is as attached Figure 1 As shown, A fire extinguishing device for a new energy vehicle, comprising: Substrate: The substrate is rectangular; the substrate is basalt fiber cloth 1; the basalt fiber cloth 1 is made of basalt fiber yarn with a diameter of 9μm~17μm and a linear density of 133tex~233tex, woven in plain, satin or twill weave; the surface density is 200g / m2~400g / m2. Basalt fiber cloth 1 is an inorganic non-metallic continuous fiber material prepared by high-temperature melting and drawing of basalt ore. It has the following characteristics: High strength and high modulus: Basalt fiber cloth 1 has high tensile strength and elastic modulus, which makes it have important applications in the field of mechanical reinforcement. High temperature resistance: Basalt fiber cloth 1 can withstand high working temperatures, generally around 880℃, which makes it suitable for high temperature environments. Corrosion resistance: Basalt fiber cloth 1 has good corrosion resistance to chemical media such as acids, alkalis and seawater, so it has broad application prospects in marine engineering and chemical industry. Sound absorption performance: Basalt fiber cloth 1 has a high sound absorption coefficient, which makes it suitable for sound insulation materials. Electrical insulation: Basalt fiber cloth 1 has good electrical insulation performance and is suitable for occasions where electrical insulation is required. Moisture resistance: Basalt fiber cloth 1 can still maintain good performance in a humid environment and is suitable for outdoor or humid environments. Chemical corrosion resistance: Basalt fiber cloth 1 has excellent corrosion resistance to a variety of chemical substances and is suitable for use in chemical industry and environmental engineering. UV resistance, radiation protection, and electromagnetic protection: Basalt fiber cloth 1 has good weather resistance and can resist the erosion of ultraviolet rays. It also has certain radiation protection and electromagnetic protection properties. Environmental protection: No harmful substances are produced during the production process of basalt fiber cloth 1, and it is a green and environmentally friendly structural material. Low hygroscopicity: Basalt fiber cloth 1 has low hygroscopicity, which allows it to maintain performance in a humid environment. The cloth made of basalt fiber yarn can be flame retardant during use, and its good electrical insulation can also prevent the leakage of the battery from the fire from affecting the outside world during the fire extinguishing process.

[0023] Silicone coating: coated on the surface of basalt fiber cloth 1; the silicone coating is coated on one side or both sides of basalt fiber cloth 1; when coating on one side, the content of silicone coating is 15%~17%, and the surface density of the coated cloth is 230 g / m2~468 g / m2 after completion; when coating on both sides, the content of silicone coating is 30%~34%, and the surface density of the coated cloth is 260 g / m2~536 ​​g / m2 after completion. This solution adopts double-sided coating.

[0024] Basalt braided water hose 2: The basalt braided water hose 2 is a tubular structure woven by basalt fiber yarns, and the basalt braided water hose 2 is fixed on the surface of basalt fiber cloth; the fiber braided water hose is installed with a water inlet 4 at least on the short side of the base; the projection of the basalt braided water hose 2 on the surface of the basalt fiber cloth is rectangular, wherein the two long sides of the rectangle are respectively connected with a basalt braided water hose 2 extending to the short sides of the base to the water inlet 4 and connected to the water inlet 4. The water inlet 4 adopts a quick-release structure, which can be matched with the interface of the fire hose; the basalt braided water hose 2 is a tubular structure woven by basalt fiber yarns. In order to allow water to cover a wider area as much as possible, the basalt braided water hose 2 is pieced together in shape so that it can cover more areas and realize unified water supply in multiple areas. In this scheme, a mouth-shaped layout method is adopted, and two additional basalt braided water hose 2 pipes are led out to both sides of the base plate for connecting to the water source.

[0025] A plurality of spray holes; the spray holes are arranged at intervals on the surface of the basalt woven water bag. The basalt fiber water hose is woven with basalt fiber yarns with a diameter of 9μm~17μm and a line density of 133tex~233tex, and the diameter of the basalt fiber water hose is 60~70mm. The aperture of the spray hole is 4mm~5mm, and the hole spacing is 300mm~500mm.

[0026] It also includes two traction belts 3, which are symmetrically fixed on one side of the short side of the base. The traction belts 3 are used to bind the basalt fiber cloth 1 when it is stored. At the same time, when a car fire occurs, two people drag the traction belt 3 from the front to the rear, or from the rear to the front to cover the car, which is convenient for personnel operation.

[0027] The size of the basalt fiber coated cloth in this solution is 9 meters x 6 meters. Figure 1 As shown, a basalt fiber spray hose with a diameter of 65mm, a hole diameter of 4mm~5mm, and a hole spacing of 300mm~500mm is installed on one side of the basalt fiber coated cloth by sewing, and fire quick-connect connectors are installed at the water inlets 4 at both ends. A basalt fiber braided belt with a length of 2 meters and a spacing of 2 meters is installed at one end of the basalt fiber silicone coated cloth as a traction rope. Folding: After folding the device from both ends to the middle, it is folded into a 1m×1m block by an "S"-shaped stacking method.

[0028] Steps for using this device: (1) Call the fire department when a fire is discovered; (2) Two persons shall quickly move the fire extinguishing device stored in the designated location to the appropriate location; (3) Pull the fire extinguishing device to cover the burning object using the traction rope; (4) Use the device to cover the burning car tightly to ensure that no air can enter, isolate oxygen, and prevent the fire from spreading; (5) Connect the quick-plug interface of the sprinkler belt to the fire-fighting pipe, and spray quickly to continuously cool down.

[0029] (6) After the fire has completely cooled down and there is no risk of re-ignition, open the fire extinguisher and keep it away from the burning object.

[0030] Beneficial effects of this program: 1. Rapidly and continuously cool down the burning vehicle and isolate the air to extinguish the fire.

[0031] 2. Isolate the burning vehicle to prevent the fire from spreading and igniting other vehicles and combustibles.

[0032] 3. The device weighs about 35kg and can be folded and stored. It can be used by two people and is convenient and quick to use.

[0033] 4. This device can be used in most household cars.

[0034] 5. The water inlet 4 adopts a fire quick-release interface, which is suitable for fire hoses and can be quickly installed and disassembled.

[0035] 6. Long-term shelf life: Storage at normal temperature and without sunlight for 8 to 10 years will not affect the quality of use 7. High temperature resistance: 1000℃ Combustion performance grade: Class A (non-combustible material) Embodiment 2 The difference between the second embodiment and the first embodiment is that: Figure 2-3 As shown, the basalt braided water hose 2 includes a first water hose 21 and a second water hose 22, which are respectively installed on the upper and lower sides of the basalt. A regulating water valve 5 is installed at the water inlet end of the first water hose 21 and the second water hose 22. The regulating water valve 5 is connected to the water inlet 4, and the regulating water valve 5 is used to supply water to the first water hose 21 and the second water hose 22; As attached Figure 3As shown, the regulating water valve 5 is provided with two symmetrically arranged slideways 9 on one side close to the first water hose 21 and the second water hose 22. The two slideways 9 are distributed up and down, and sliders 7 are slidably connected in the two slideways 9. A conversion block is provided between the two slideways 9. An aisle 91 is provided in the middle of the conversion block, and an exchange chamber 92 is provided in the middle of the aisle 91. The aisles 91 located at the upper and lower ends of the exchange chamber 92 are respectively connected to the adjacent slideways 9. A spring 8 is provided between the sliders 7 located at the upper and lower ends of the conversion block and the inner wall of the regulating valve away from the conversion block, that is, the slide located above A spring 8 is arranged between the upper end of the block 7 and the inner wall of the regulating valve, and a spring 8 is arranged between the lower end of the slider 7 located below and the inner wall of the regulating valve; openings are oppositely opened on the side walls of the two slideways 9 close to one end of the conversion bin, wherein the slideway 9 located on the lower side is provided with a first opening 61 and a second opening 611, and the slideway 9 located on the upper side is provided with a third opening 62 and a fourth opening 621; wherein the first opening 61 and the third opening 62 are connected to the water inlet 4, the second opening 611 is connected to the second water channel 221 in the second water hose 22, and the fourth opening The first water channel 211 in the first water belt 21 is connected to the first water channel 211, and the upper and lower ends of the exchange chamber 92 are respectively connected to the upper and lower passages 91. A sliding ball is slidably connected in the exchange chamber 92. The upper and lower ends of the exchange chamber 92 are constricted. When the sliding ball contacts the constricted part, it can be blocked. A first exchange passage 931 and a second exchange passage 932 are opened on the side wall of the exchange chamber 92. The first exchange passage 931 connects the passage 91 at the upper end of the exchange chamber 92 and the inside of the exchange chamber 92. The second exchange passage 932 connects the passage 91 at the lower end of the exchange chamber 92 and the exchange chamber 92. Inside the bin 92, the lower end of the first exchange channel 931 is arranged near the lower side of the exchange bin 92, and the upper end of the second exchange channel 932 is arranged near the upper end of the exchange bin 92. When the sliding ball is located at the lower end of the first exchange channel 931 in the exchange bin 92, the lower end of the first exchange channel 931 is blocked, and when the sliding ball is located at the end of the second exchange channel 932 in the exchange bin 92, the second exchange channel 932 is blocked, that is, when the exchange bin 92 is turned over, the sliding ball slides downward under the action of gravity, blocking the port of the first exchange channel 931 or the second exchange channel 932 located below. The first exchange channel 931 is also provided with a first one-way valve 9311 on one side of the slide 9, and the second exchange channel 932 is provided with a second one-way valve 9322 on one side of the slide 9. The first one-way valve 9311 and the second one-way valve 9322 are one-way water valves, which can only transport water in the first exchange channel 931 / the second exchange channel 932 to the corresponding slide 9, but cannot transport it in the opposite direction. When in use, adjust the water valve 5 to be square to the ground.

[0036] This solution provides two upper and lower water hoses, which can be folded and opened to cover the burning vehicle on either side. The problem of flipping over is eliminated (for example, if the hose has only one side, two people are needed to cooperate in flipping it over so that one side of the hose faces the vehicle), which saves rescue time; it is more portable and convenient to use; since the device is heavy, it is not easy to flip it over, and when the fire is going on and people are in a panic, it is easy to make operating errors. The double-sided setting can solve this kind of trouble. At the same time, the function of adjusting the water valve 5 is to give priority to supplying water to the water hose below the device, so that it can quickly come into direct contact with the open flame and high temperature part of the fire, thereby improving the fire extinguishing efficiency. As shown in the attached figure Figure 3 As described above, when the second water hose 22 is located at the lower side, the slider 7 compresses the spring 8 under the action of gravity, and the first opening 61 and the second opening 611 are connected through the slide 9, and the water from the water inlet 4 can flow to the second opening 611 through the first opening 61 and enter the second water hose 22 to start extinguishing the fire. When the water pressure is relatively strong, the second water hose 22 is in a saturated state of water inlet and outlet, and the excess water will flow from the connection between the slide 9 and the aisle 91 below to the exchange chamber 92. When the water pressure is sufficient, the slide ball can be pushed up, and the water flows into the exchange chamber 92, and the water flows from the first exchange passage 931 to the exchange chamber 92. The water flows into the first exchange channel 931 at the junction of the upper and lower water hoses, and then flows into the upper passage 91. During the continuous water delivery process, when the water in the upper passage 91 is sufficient, the slider 7 in the upper slideway 9 is pushed to move, so that the third opening 62 and the fourth opening 621 are opened, that is, the first water hose 21 can also pass water, and the upper and lower water hoses pass water at the same time, which can cool down the burning vehicle more quickly; and after the first water hose 21 passes water, the device can also be weighted to prevent the water vapor generated after the water is evaporated by high temperature from accumulating between the vehicle and the device, causing the basalt fiber cloth 1 to swell and affect the fire extinguishing effect.

[0037] The above are only embodiments of the present invention. The invention is not limited to the fields involved in this implementation case. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field to which the invention belongs before the application date or the priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A fire extinguishing device for new energy vehicles, characterized in that: include: Base: The base is rectangular; The substrate is basalt fiber cloth; Silicone coating: coated on the surface of basalt fiber cloth; Basalt braided water hose: The basalt braided water hose is a tubular structure woven from basalt fiber yarns, and the basalt braided water hose is fixed on the surface of basalt fiber cloth; the fiber braided water hose is provided with a water inlet at least on the short side of the base; A plurality of spray holes are provided at intervals on the surface of the basalt woven water bag.

2. A fire extinguishing device for new energy vehicles according to claim 1, characterized in that: It also includes two traction belts which are symmetrically fixed on one side of the short side of the base.

3. A fire extinguishing device for new energy vehicles according to claim 2, characterized in that: The projection of the basalt braided water hose on the surface of the basalt fiber cloth is rectangular, wherein two long sides of the rectangle are respectively connected with a basalt braided water hose extending to both sides of the short sides of the base to the water inlet and connected with the water inlet.

4. A fire extinguishing device for new energy vehicles according to claim 1, characterized in that: The basalt fiber cloth is made of basalt fiber yarns with a diameter of 9 μm to 17 μm and a linear density of 133 tex to 233 tex, and is woven in a plain, satin or twill weave manner; the surface density is 200 g / m2 to 400 g / m2.

5. A fire extinguishing device for new energy vehicles according to claim 1, characterized in that: The basalt fiber water hose is woven from basalt fiber yarns with a diameter of 9 μm to 17 μm and a linear density of 133 tex to 233 tex. The diameter of the basalt fiber water hose is 60 to 70 mm.

6. A fire extinguishing device for new energy vehicles according to claim 5, characterized in that: The diameter of the spray holes is 4 mm to 5 mm, and the hole spacing is 300 mm to 500 mm.

7. A fire extinguishing device for new energy vehicles according to claim 1, characterized in that: The silicone coating is coated on one side or both sides of the basalt fiber cloth; when coating on one side, the content of the silicone coating is 15% to 17%, and the surface density of the coated cloth is 230 g / m2 to 468 g / m2 after completion; when coating on both sides, the content of the silicone coating is 30% to 34%, and the surface density of the coated cloth is 260 g / m2 to 536 g / m2 after completion.

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