An intelligent forest fire extinguishing system

Abstract

The present invention relates to an intelligent forestry fire extinguishing system, including a drone cluster, a fire extinguishing bomb, a forest fire sprinkler, a remote control platform, a bombing calculation module, a data transmission module, and a background processing module. When a fire occurs in a forest or grassland, the drone is controlled to mount the fire extinguishing bomb, and the combustion object is doubly isolated by explosion covering soil and releasing gel-type fire extinguishing liquid, thereby preventing the spread and development of the fire and controlling the fire situation. The method of using drones to mount fire extinguishing bombs, combined with the synergistic effect of explosion covering soil and gel-type fire extinguishing liquid, significantly improves the adhesion of the attachments on the surface of the combustion object, and can effectively prevent re-ignition; this fire extinguishing technology solves the technical difficulties of fire extinguishing due to complex terrain in forest and grassland fires, and at the same time has the advantages of efficient fire extinguishing and easy implementation, and also avoids the problem of secondary disasters caused by explosion fire extinguishing, achieving the purpose of reducing water consumption and improving fire extinguishing efficiency.

Description

Technical Field

[0001] The present invention relates to an intelligent forest fire extinguishing system, belonging to the technical field of forest fire extinguishing. Background Art

[0002] In the field of forest and grassland fire extinguishing, taking the method of fighting forest fires as an example:

[0003] Methods for fighting forest fires include manual beating, extinguishing with soil, extinguishing with water, extinguishing with gas, extinguishing with fire, creating fire breaks to prevent the spread of fire, artificial rainfall, wind extinguishing, chemical extinguishing, explosion extinguishing, and aerial extinguishing, etc.

[0004] Fire extinguishing equipment mainly includes tools for extinguishing open flames and residual fires and creating fire breaks. It includes wind fire extinguishers, hand-thrown fire extinguishing bombs, small water pumps, water guns, forest fire sprinkler trucks, machetes, shovels, hoes, brush cutters, chain saws, saws, axes, hoes, etc.

[0005] Fighting forms include, one is the direct fire extinguishing method, which is to directly confront the fire with fire extinguishing equipment to stop the fire from burning. This method is generally applicable to weak and moderate surface fires (where people can approach to extinguish the fire), and is not suitable for large and fierce fires or crown fires. Many tools can be used in the direct fire extinguishing method, such as mechanical fire extinguishing tools, chemical fire extinguishing agents, water, and soil. The other is the indirect fire extinguishing method, mainly to establish fire isolation belts, such as creating fire breaks, digging fire ditches, and attacking fire with fire, etc. It is mainly applicable to fierce surface fires, crown fires, and difficult-to-extinguish underground fires.

[0006] According to the occurrence law and fighting characteristics of forest fires, fighting forest fires must follow the procedure of "first control, then extinguish, and then consolidate", and be carried out in stages.

[0007] However, the existing fire extinguishing technologies and the corresponding effects of fire fighting equipment are limited. Almost mainly rely on forest fire sprinkler trucks, but its defect is that it has a large water consumption and low fire extinguishing efficiency; in particular, the adhesion of water on the surface of combustibles is very large, and a large amount of water is vaporized and evaporated, and the fire extinguishing effect is not significantly exerted.

[0008] If the method of using drones to remotely throw fire extinguishing bombs is adopted to extinguish fires, first of all, if the fire extinguishing medium in the fire extinguishing bomb (such as dry powder, fire extinguishing liquid, etc.), the fire extinguishing effect is average. If the impact force generated by high-altitude throwing is used to make the fire extinguishing bomb explode, the explosion radius is limited and the fire extinguishing area is limited. If it is a fire extinguishing liquid, for the commonly used fire extinguishing liquids on the market at present (such as foam fire extinguishing agents), the difficulty is how to generate a large amount of foam during the remote control process. If a high multiple foam fire extinguishing agent is prepared in advance, it is impossible to transport a large amount using drones. If the stock solution is concentrated into the fire extinguishing bomb and then the method of subsequent sprinkling is used to make foam, the technical difficulty is very high because there is no stirring and foaming process, the foaming amount is very small, and the fire extinguishing effect is limited. If the foaming agent is installed on the drone and the foam generated by the foaming agent on the drone is introduced into the fire scene through a pipeline, the effect of this method is also limited because the problem of water source cannot be solved. At the same time, it is difficult to accurately cover the fire scene with foam because the fire scene has thick smoke and it is impossible to carry out precise foam paving operations.

[0009] Based on this, the present invention is proposed. Summary of the Invention

[0010] In view of the deficiencies of the existing technology, the present invention provides an intelligent forest fire extinguishing system, and the specific technical solution is as follows:

[0011] An intelligent forest fire extinguishing system includes a drone cluster, fire extinguishing bombs, a forest fire fighting sprinkler truck, a remote control platform, a bomb throwing calculation module, a data transmission module, and a background processing module. The drone cluster includes several drones. The fire extinguishing bombs are mounted at the bottom of the drones. A video camera is also provided at the bottom of the drones. The images or videos captured by the video camera are transmitted to the background processing module through the data transmission module. An electromagnetic clamp for clamping the fire extinguishing bombs is installed at the bottom of the drones.

[0012] According to the fire extinguishing plan, the fire extinguishing commander commands the forest fire fighting sprinkler truck to sprinkle water and extinguish the fire in the area to be extinguished. At the same time, the drone cluster loaded with fire extinguishing bombs is controlled through the remote control platform to fly over the area to be extinguished in a preset formation. The bomb throwing calculation module calculates the bomb throwing timing, and the remote control platform remotely controls the electromagnetic clamp to open to carry out the throwing of the fire extinguishing bombs.

[0013] The fire extinguishing bombs explode and extinguish the fire in the area to be extinguished.

[0014] For further optimization of the above technical solution, the fire extinguishing plan includes dividing the open fire area for fire extinguishing according to the size of the fire, extinguishing the hidden fire area at a fixed point, and setting up a fire prevention isolation belt.

[0015] The drones are equipped with an infrared thermometer and a thermal imager to identify the hidden fire area.

[0016] After a forest fire breaks out, an off-road vehicle or a crawler vehicle is used to transport drones and fire extinguishing bombs to a safe location near the fire, and a forest fire sprinkler truck also drives to a safe location near the fire;

[0017] First, the drone is not equipped with a fire extinguishing bomb and flies to the area where the fire occurs for shooting. The pictures and videos obtained from the shooting are transmitted to the background processing module through the data transmission module. The fire extinguishing commander formulates a fire extinguishing plan according to the actual situation of the fire, and the forest fire sprinkler truck conducts multiple rounds of fire extinguishing on the area where the fire occurs;

[0018] Secondly, the drone is equipped with a fire extinguishing bomb and cooperates with the forest fire sprinkler truck to conduct dual fire extinguishing in the area to be extinguished;

[0019] Finally, after the fire extinguishing task is completed, the drone returns and removes the unthrown fire extinguishing bombs.

[0020] For further optimization of the above technical solution, the fire extinguishing bomb includes a spherical bomb body, and four support feet are fixedly installed on the outer periphery of the bomb body. The four support feet are arranged in a structure like a horse stance nail;

[0021] The bomb body includes a spherical shell, and a lead ball is arranged at the center of the spherical shell. At least three springs are fixedly installed between the lead ball and the inner wall of the spherical shell; at least three groups of embedded thermal detonating mechanisms are also embedded on the surface of the spherical shell. A first through hole is provided on the surface of the spherical shell. The embedded thermal detonating mechanism includes a covering layer that completely covers the first through hole, and the covering layer is hermetically connected to the spherical shell; a medicine storage groove is embedded at the first through hole. The notch of the medicine storage groove is covered and hermetically connected by the covering layer. An aluminothermic agent layer is filled in the medicine storage groove. The aluminothermic agent layer is composed of aluminothermic agent. Several magnesium strips are also arranged between the aluminothermic agent layer and the covering layer, and the magnesium strips are glued to the medicine storage groove; a liquid injection hole is also provided on the surface of the spherical shell, and a hole plug is hermetically connected at the liquid injection hole; a binary fire extinguishing medium is also filled inside the spherical shell.

[0022] For further optimization of the above technical solution, the supporting feet include a metal tube, a shell-and-tube thermal detonator mechanism, an extension tube, and a conical head. The metal tube includes a first circular tube body. A cover is hermetically connected to the head end of the first circular tube body. A first wave crest protrusion part is connected to the tail end of the first circular tube body. The first wave crest protrusion part is a wave crest structure of a sine wave. The first wave crest protrusion part is connected to a first annular tube part with an arc-shaped cross section. The first annular tube part is connected to a first conical tube part. The large end of the first conical tube part is connected to the first annular tube part. The small end of the first conical tube part is connected to a second circular tube body. The second circular tube body is connected to a first group of wave crest protrusions. The first group of wave crest protrusions is composed of three second wave crest protrusion parts. The second wave crest protrusion part is a wave crest structure of a sine wave. The wave crest values of the three second wave crest protrusion parts are arranged in a continuously increasing manner in the direction away from the second circular tube body. The first group of wave crest protrusions is connected to a second annular tube part with an elliptical arc-shaped cross section. The second annular tube part is connected to a second conical tube part. The small end of the second conical tube part is connected to a third annular tube part with an arc-shaped cross section. The third annular tube part is connected to a third wave crest protrusion part. The third wave crest protrusion part is a wave crest structure of a sine wave. The third wave crest protrusion part is connected to a first circular connecting part.

[0023] For further optimization of the above technical solution, the shell-type thermal detonator mechanism includes a circular tube body III. A connecting part II, which is adhesively connected to the connecting part I and has an annular structure, is connected to the head end of the circular tube body III. A wave peak convex part IV is connected to the tail end of the circular tube body III. The wave peak convex part IV is connected to an annular tube part IV with an arc-shaped cross-section. The annular tube part IV is connected to an annular tube part V with an elliptical arc-shaped cross-section. The annular tube part V is connected to an annular tube part VI with an arc-shaped cross-section. The annular tube part VI is connected to a second wave peak convex group, which is composed of three wave peak convex parts V. The wave peak convex part V has a wave peak structure of a sine wave, and the wave peak values of the three wave peak convex parts V are continuously decreasing in the direction away from the annular tube part VI. The second wave peak convex group is connected to a tapered tube part III. A connecting part III with an annular structure is connected to the small end of the tapered tube part III. The tail end of the extension tube is hermetically connected to the diameter end of the conical head. A connecting part IV, which is adhesively connected to the connecting part III and has an annular structure, is connected to the head end of the extension tube. The annular tube part IV, the annular tube part V, and the annular tube part VI form an annular groove I. An inner cylinder that covers the inner cavity of the wave peak convex part IV, the annular groove I, and the inner cavities of the three wave peak convex parts V is hermetically connected to the inner cavity of the shell-type thermal detonator mechanism. The head end of the inner cylinder is hermetically connected to the inner wall of the circular tube body III, and the tail end of the inner cylinder is hermetically connected to the inner wall of the tapered tube part III. Magnesium particles are filled between the wave peak convex part IV and the inner cylinder, between the annular groove I and the inner cylinder, and between the wave peak convex part V and the inner cylinder. An outer cylinder is arranged inside the inner cylinder. The tail end of the outer cylinder is hermetically connected to the tail end of the inner cylinder, and a sealing plate is hermetically connected between the head end of the outer cylinder and the head end of the inner cylinder. The sealing plate contacts the connecting part II, and thermite is filled between the outer cylinder and the inner cylinder. The inside of the shell-type thermal detonator mechanism is also filled with a gel-type fire extinguishing liquid.

[0024] For further optimization of the above technical solution, the wave peak convex part IV, the annular tube part IV, the annular tube part V, the annular tube part VI, and the wave peak convex part V are all made of polyethylene. The outer cylinder is made of aluminum alloy. The inner cylinder is made of several aluminum alloy rods and polyether ether ketone membranes used to hermetically connect adjacent two aluminum alloy rods. The circular tube body III and the tapered tube part III are made of aluminum alloy.

[0025] For further optimization of the above technical solution, the covering layer is made of benzoxazine resin, the medicine storage tank is made of polyarylsulfone, and the spherical shell is made of aluminum alloy.

[0026] For further optimization of the above technical solution, the gel-type fire extinguishing liquid is made by mixing starch acrylate polymer, water, glycerol, potassium dihydrogen phosphate, and copper trifluoromethanesulfonate according to a mass ratio of 10:135:7:11:3.2.

[0027] For further optimization of the above technical solution, the binary fire extinguishing medium is made by mixing a gel-type fire extinguishing liquid and tadpole-shaped glass tear drops in a mass ratio of 1000:(2.1~2.3).

[0028] For further optimization of the above technical solution, three springs are provided, and six groups of embedded thermal detonating mechanisms are provided.

[0029] Advantages of the present invention:

[0030] 1. When a fire breaks out in a forest or grassland, control the unmanned aerial vehicle (UAV) to carry a fire extinguishing bomb. Through explosion and soil covering and releasing the gel-type fire extinguishing liquid, the combustibles are isolated in a dual way, thereby preventing the spread of the fire and controlling the fire situation. By using the method of the UAV carrying the fire extinguishing bomb and combining explosion and soil covering with the gel-type fire extinguishing liquid to synergistically enhance the effect, the adhesion of the attachments on the surface of the combustibles is significantly improved, and re-ignition can be effectively prevented; this fire extinguishing technology solves the technical problem of difficult fire extinguishing due to complex terrain in forest and grassland fires, and at the same time has the advantages of efficient fire extinguishing and easy implementation, and also avoids the secondary disaster problems caused by explosion fire extinguishing, achieving the purpose of reducing water consumption and improving the fire extinguishing efficiency.

[0031] 2. Using the UAV remote control technology for intelligent control helps to improve the scientific nature of dispatching, making the fire extinguishing plan more in line with the actual situation, enabling the UAVs to extinguish fires in their respective responsible areas respectively, making the fire extinguishing work proceed in an orderly manner, and improving the fire extinguishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the fire extinguishing bomb of the present invention;

[0033] Figure 2 is a schematic structural diagram of the support leg of the present invention;

[0034] Figure 3 is a schematic structural diagram of the metal tube of the present invention;

[0035] Figure 4 is a schematic structural diagram of the tube-shell type thermal detonating mechanism of the present invention;

[0036] Figure 5 is an internal schematic diagram of the bomb body of the present invention;

[0037] Figure 6 is a trend chart between the z value and the λ value. EMBODIMENTS

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Embodiment

[0039] The intelligent forest fire extinguishing system includes a drone cluster, fire extinguishing bombs, a forest fire sprinkler truck, a remote control platform, a bomb dropping calculation module, a data transmission module, and a background processing module. The drone cluster includes several drones. The fire extinguishing bombs are mounted at the bottom of the drones. A video camera is also provided at the bottom of the drones. The images or videos captured by the video camera are transmitted to the background processing module through the data transmission module. An electromagnetic clamp for clamping the fire extinguishing bombs is installed at the bottom of the drones.

[0040] According to the fire extinguishing plan, the fire extinguishing commander commands the forest fire sprinkler truck to sprinkle water to extinguish the fire in the area to be extinguished. At the same time, through the remote control platform, the drone cluster loaded with fire extinguishing bombs is controlled to fly over the area to be extinguished in a preset formation. The bomb dropping calculation module calculates the bomb dropping timing, and the remote control platform remotely controls the electromagnetic clamp to open to throw the fire extinguishing bombs.

[0041] The fire extinguishing bombs explode in the area to be extinguished to extinguish the fire.

[0042] Among them, the fire extinguishing plan includes dividing the open fire area for fire extinguishing according to the size of the fire, conducting fixed-point fire extinguishing on the hidden fire area, and setting up a fire prevention isolation belt.

[0043] The drones are equipped with an infrared thermometer and a thermal imager to identify the hidden fire area.

[0044] After a forest fire occurs, the drones and fire extinguishing bombs are transported to a safe location near the fire by off-road vehicles or tracked vehicles, and the forest fire sprinkler truck also drives to a safe location near the fire.

[0045] First, the drones fly to the fire area without carrying fire extinguishing bombs for shooting. The pictures and videos obtained from the shooting are transmitted to the background processing module through the data transmission module. The fire extinguishing commander formulates a fire extinguishing plan according to the actual situation of the fire, and the forest fire sprinkler truck conducts multiple rounds of fire extinguishing on the area where the fire occurs.

[0046] Secondly, the drones carry fire extinguishing bombs and cooperate with the forest fire sprinkler truck to conduct double fire extinguishing in the area to be extinguished.

[0047] Finally, after the fire extinguishing task is completed, the drones return and remove the unthrown fire extinguishing bombs. Embodiment

[0048] As Figures 1 - 5 shown, the fire extinguishing bomb includes a spherical bomb body 10. Four support feet 20 are fixedly installed on the outer periphery of the bomb body 10, and the four support feet 20 are arranged in a horse stance nail structure.

[0049] The projectile 10 includes a spherical shell 100, a lead ball 16 is arranged at the center of the spherical shell 100, and at least three springs 17 are fixedly installed between the lead ball 16 and the inner wall of the spherical shell 100; at least three groups of embedded thermal detonating mechanisms are also embedded on the surface of the spherical shell 100, a first through hole is arranged on the surface of the spherical shell 100, and the embedded thermal detonating mechanism includes a covering layer 12 that completely covers the first through hole, and the covering layer 12 is hermetically connected to the spherical shell 100; a medicine storage groove 13 is embedded at the first through hole, the notch of the medicine storage groove 13 is covered and hermetically connected by the covering layer 12, an aluminothermic agent layer 14 is filled in the medicine storage groove 13, the aluminothermic agent layer 14 is composed of aluminothermic agent, and several magnesium strips 15 are also arranged between the aluminothermic agent layer 14 and the covering layer 12, and the magnesium strips 15 are adhesively connected to the medicine storage groove 13; a liquid injection hole is also arranged on the surface of the spherical shell 100, and a hole plug 11 is hermetically connected at the liquid injection hole; a binary fire extinguishing medium is also filled inside the spherical shell 100.

[0050] Further, the support leg 20 includes a metal tube 21, a tube-shell type thermal detonating mechanism 22, an extension tube 23, and a conical head 24. The metal tube 21 includes a first circular tube body 211, a sealing cover 25 is hermetically connected to the head end of the first circular tube body 211, a first wave peak protrusion 212 is connected to the tail end of the first circular tube body 211, the first wave peak protrusion 212 is a wave peak structure of a sine wave, the first wave peak protrusion 212 is connected to an annular tube portion 213 with an arc-shaped cross section, the annular tube portion 213 is connected to a conical tube portion 214, the large end of the conical tube portion 214 is connected to the annular tube portion 213, the small end of the conical tube portion 214 is connected to a second circular tube body 215, the second circular tube body 215 is connected to a first group of wave peak protrusions, the first group of wave peak protrusions is composed of three second wave peak protrusions 216, the second wave peak protrusions 216 are wave peak structures of a sine wave, the maximum diameter at the second wave peak protrusions 216 is the wave peak value of the second wave peak protrusions 216, and the wave peak values of the three second wave peak protrusions 216 are continuously increased in the direction away from the second circular tube body 215; the first group of wave peak protrusions is connected to an annular tube portion 217 with an elliptical arc-shaped cross section, the annular tube portion 217 is connected to a conical tube portion 218, the small end of the conical tube portion 218 is connected to an annular tube portion 219 with an arc-shaped cross section, the annular tube portion 219 is connected to a third wave peak protrusion 2110, the third wave peak protrusion 2110 is a wave peak structure of a sine wave, and the third wave peak protrusion 2110 is connected to a circular connecting portion 2111.

[0051] Further, the shell-type thermal detonator mechanism 22 includes a third circular tube body 221. A second connecting portion 229, which is adhesively connected to the first connecting portion 2111 and has an annular structure, is connected to the head end of the third circular tube body 221. A fourth wave peak protrusion portion 222 is connected to the tail end of the third circular tube body 221. The fourth wave peak protrusion portion 222 is connected to a fourth annular tube portion 223 with an arc-shaped cross-section. The fourth annular tube portion 223 is connected to a fifth annular tube portion 224 with an elliptical arc-shaped cross-section. The fifth annular tube portion 224 is connected to a sixth annular tube portion 225 with an arc-shaped cross-section. The sixth annular tube portion 225 is connected to a second wave peak protrusion group, which is composed of three fifth wave peak protrusion portions 226. The fifth wave peak protrusion portion 226 has a wave peak structure of a sine wave. The maximum diameter at the fifth wave peak protrusion portion 226 is the wave peak value of the fifth wave peak protrusion portion 226. The wave peak values of the three fifth wave peak protrusion portions 226 are arranged to continuously decrease in the direction away from the sixth annular tube portion 225. The second wave peak protrusion group is connected to a third tapered tube portion 227. A third connecting portion 228 with an annular structure is connected to the small end of the third tapered tube portion 227. The tail end of the extension tube 23 is hermetically connected to the diameter end of the conical head 24. The extension tube 23 is made of an iron pipe. A fourth connecting portion 2111 with an annular structure is connected to the head end of the extension tube 23. The fourth connecting portion 2111 is adhesively connected to the third connecting portion 228. A fourth connecting portion 2111, which is adhesively connected to the third connecting portion 228 and has an annular structure, is connected to the head end of the extension tube 23. The fourth annular tube portion 223, the fifth annular tube portion 224, and the sixth annular tube portion 225 form a first annular groove. An inner cylinder 2211, which covers the inner cavity of the fourth wave peak protrusion portion 222, the first annular groove, and the inner cavities of the three fifth wave peak protrusion portions 226, is hermetically connected to the inner cavity of the shell-type thermal detonator mechanism 22. The head end of the inner cylinder 2211 is hermetically connected to the inner wall of the third circular tube body 221. The tail end of the inner cylinder 2211 is hermetically connected to the inner wall of the third tapered tube portion 227. Magnesium particles are filled between the fourth wave peak protrusion portion 222 and the inner cylinder 2211, between the first annular groove and the inner cylinder 2211, and between the fifth wave peak protrusion portion 226 and the inner cylinder 2211. An outer cylinder 2210 is arranged inside the inner cylinder 2211. The tail end of the outer cylinder 2210 is hermetically connected to the tail end of the inner cylinder 2211. A sealing plate 2212 is hermetically connected between the head end of the outer cylinder 2210 and the head end of the inner cylinder 2211. The sealing plate 2212 contacts the second connecting portion 229. Thermite is filled between the outer cylinder 2210 and the inner cylinder 2211. A gel-type fire extinguishing liquid is also filled inside the shell-type thermal detonator mechanism 22.

[0052] Furthermore, the fourth wave crest protrusion 222, the fourth annular tube portion 223, the fifth annular tube portion 224, the sixth annular tube portion 225, and the fifth wave crest protrusion 226 are all made of polyethylene, the outer cylinder 2210 is made of aluminum alloy, the inner cylinder 2211 is made of a plurality of aluminum alloy rods and polyether ether ketone membranes used to hermetically connect adjacent aluminum alloy rods, and the third circular tube body 221 and the third tapered tube portion 227 are made of aluminum alloy.

[0053] Furthermore, the covering layer 12 is made of benzoxazine resin, the medicine storage tank 13 is made of polyarylsulfone, and the spherical shell 100 is made of aluminum alloy.

[0054] Among them, three springs 17 are provided, and six groups of embedded thermal detonating mechanisms are provided.

[0055] The stud has four sharp claws. When thrown randomly, three claws support on the ground and one claw stands upright upward; when the upper claw is pushed down, the lower claw stands up again; always like this, there is always one claw vertically upward, and the three claws symmetrically support on the ground.

[0056] Therefore, after the fire extinguishing bomb is dropped from a high altitude, there are always three support feet 20 supporting on the ground, and the fourth support foot 20 is vertically upward.

[0057] Due to the setting of the cone head 24, the cone heads 24 of the three lower support feet 20 are easily inserted into the soil. On the one hand, it enables the bomb body 10 to have a certain distance from the ground, facilitating subsequent explosion; on the other hand, when the support feet 20 explode, more soil will be generated, thereby covering the combustibles within the explosion radius, isolating the air, and achieving the purpose of extinguishing the fire.

[0058] The ignition point of general polyethylene is 341°C, which is relatively low and can be easily ignited in a general fire. Therefore, the wave crest protrusion four 222, the annular tube part four 223, the annular tube part five 224, the annular tube part six 225, the wave crest protrusion five 226, etc. will be burned and ruptured first, and the magnesium particles filled in them will be ignited. When the violently burning magnesium particles burn through the polyether ether ketone film on the inner cylinder 2211; polyether ether ketone has a relatively high glass transition temperature of 143°C and a melting point of 343°C, its heat deflection temperature under load is as high as 316°C, and the instantaneous use temperature can reach 300°C, and it has self-extinguishing properties. Even without adding any flame retardants, it can reach the UL standard of 94V-0 grade. Therefore, only the high temperature generated by the violent combustion of magnesium particles can easily burn through it. When it burns at the same rate as polyethylene, it takes a period of time to burn through it, which is equivalent to providing a certain degree of protection for the thermite inside, so that it can only be broken open first from the place where the magnesium particles burn, and then the thermite in the outer cylinder 2210 is ignited, and a thermite reaction occurs, and violent combustion and explosion occur, thereby bursting open the shell-type thermal-sensitive initiating mechanism 22, and the metal tube 21 will also burst open accordingly; on the one hand, the amount of thermite used is very small, and its total amount is less than 1% of the gel-type fire extinguishing liquid, mainly to prevent excessive use from aggravating the combustion degree nearby; in addition, with a small amount, it can be conveniently stored in those protruding structures of the shell-type thermal-sensitive initiating mechanism 22; it should be noted that due to the installation position of the thermite, therefore, it is necessary to set up structures such as the wave crest protrusion one 212, the annular tube part one 213, the tapered tube part one 214, the three wave crest protrusions two 216, the tapered tube part two 218, the annular tube part three 219, etc., so that when the shell-type thermal-sensitive initiating mechanism 22 detonates, it can generate a large downward thrust, thereby blasting out a larger pit and having a larger soil covering radius for the explosion.

[0059] When the three support feet 20 are tilted, part of the explosive force generated will push the projectile 10 upward. When the fourth support foot 20 explodes, the downward driving force generated will mostly act on the projectile 10, thereby restraining the projectile 10 and preventing it from exploding too high.

[0060] The thermite reaction time is short. On the one hand, it will quickly go out under the cover of the soil; secondly, under the cover of the gel-type fire extinguishing liquid, it can improve the covering effect. Cooperating with the forest fire fighting sprinkler to sprinkle water on the fire area for multiple rounds of fire extinguishing can cover the surface of the combustibles with soil, hydrogel or water film, etc., with strong adhesion, so as to effectively prevent the combustibles from reigniting. Even if a small amount of sporadic thermite reaction products are not initially covered and extinguished by the soil, since the fire extinguishing bomb must have an open flame to explode and burn, it means that it is in the fire area. Even if a small amount of "new fire" is generated, it has little impact on the overall fire field. The main function of the fire extinguishing bomb is to prevent the reignition of nearby combustibles.

[0061] The scope of application of the present invention is: when a fire occurs in a forest or grassland, the drone is controlled to mount a fire-extinguishing bomb, and the explosion covers the soil and releases a gel-type fire-extinguishing liquid to double isolate the burning material, thereby preventing the fire from spreading and developing and controlling the fire. The method of using drones to mount fire-extinguishing bombs, combined with the synergistic effect of explosion covering the soil and gel-type fire-extinguishing liquid, significantly improves the adhesion of the attached materials on the surface of the burning material, and can effectively prevent re-ignition; this fire-fighting technology solves the technical problem of fire-fighting difficulties caused by complex terrain in forest and grassland fires, and at the same time has the advantages of efficient fire-fighting and easy implementation, and also avoids the problem of secondary disasters caused by explosive fire-fighting, achieving the purpose of reducing water consumption and improving fire-fighting efficiency.

[0062] Similarly, for the projectile 10, since the covering layer 12 is made of benzoxazine resin, it is more difficult to burn than polyethylene. Therefore, the first explosion occurs at the three supporting legs 20, causing the soil within the explosion radius to become loose, and then the projectile 10 explodes again, thereby being able to produce a larger and deeper pit, thereby improving the explosion covering effect. The drug storage tank 13 is made of polyarylsulfone, and after the magnesium bar 15 is ignited, the thermite is ignited to cause a violent thermite reaction. Usually 1 to 2 embedded thermal sensitive detonating mechanisms can be ignited and detonated, and the amount of thermite is strictly controlled to limit the scale of the thermite reaction.

[0063] The detonation method of the present invention mainly relies on the high heat generated by the thermite reaction to cause the closed cavity to explode. By first detonating the support foot 20 and then detonating the projectile 10, the radius and amount of soil covered by the explosion are maximized. Since the detonation does not require any delayed fuse, it only relies on the open flame of the fire scene to achieve the effect of successive detonations, and the explosion structure and detonation structure are simple. Because the explosion structure and delayed detonation structure are too complicated, they are prone to malfunction after falling at high speed, resulting in failure to detonate. Even if the support foot 20 and the projectile 10 burst due to falling from a high altitude, the present invention can still be detonated, but the radius and amount of soil covered will be smaller.

[0064] The arrangement of the lead ball 16 and the spring 17 allows the lead ball 16 to continuously vibrate up and down in the bomb body 10 due to inertia after the fire extinguishing bomb falls to the ground, which is beneficial for the support foot 20 to penetrate into a deeper soil layer in the initial stage, thereby effectively increasing the subsequent soil covering radius and soil covering amount. Example

[0065] The gel-type fire extinguishing liquid is prepared by mixing starch acrylate polymer, water, glycerol, potassium dihydrogen phosphate, and copper trifluoromethanesulfonate in a mass ratio of 10:135:7:11:3.2 and reacting at 50-55° C., and is marked as fire extinguishing liquid 1.

[0066] The JT1080 superabsorbent resin starch acrylate polymer of Foshan Juntu New Materials Co., Ltd. has a water absorption rate of up to 730 g / g. Therefore, the gel-type fire extinguishing liquid containing the starch acrylate polymer can be diluted with a large amount of water to obtain a diluted fire extinguishing liquid, and the diluted fire extinguishing liquid can still have a good fire extinguishing effect. Taking 166.2 g of the gel-type fire extinguishing liquid as an example, after diluting it 35 times with water (adding 5817 g of water), the diluted fire extinguishing liquid is poured into a watering can and sprayed on a completely burned wooden block (30 cm long, 10 cm wide, 2 cm thick, and completely burned means the surface is all black charcoal) to extinguish the fire. When the fire is extinguished, stop spraying. After reignition, spray again until there is no more reignition. Record the fire extinguishing time and the amount of the diluted fire extinguishing liquid used; the results are shown in Table 1:

[0067] Group A1: The starch acrylate polymer, water, glycerol, and copper trifluoromethanesulfonate are mixed in a mass ratio of 10:146:7:3.2 and reacted at 50 - 55 °C to prepare Fire Extinguishing Liquid 2. After diluting Fire Extinguishing Liquid 2 35 times with water, conduct a fire extinguishing test, record the fire extinguishing time, the amount of the diluted fire extinguishing liquid used, and the number of times of reignition during the fire extinguishing process; the results are shown in Table 1:

[0068] Group A2: The starch acrylate polymer, water, and glycerol are mixed in a mass ratio of 10:149.2:7 and reacted at 50 - 55 °C to prepare Fire Extinguishing Liquid 3. After diluting Fire Extinguishing Liquid 3 35 times with water, conduct a fire extinguishing test, record the fire extinguishing time, the amount of the diluted fire extinguishing liquid used, and the number of times of reignition during the fire extinguishing process; the results are shown in Table 1:

[0069] Group A3: The starch acrylate polymer, water, glycerol, polyacrylamide, and copper trifluoromethanesulfonate are mixed in a mass ratio of 10:135:7:11:3.2 and reacted at 50 - 55 °C to prepare Fire Extinguishing Liquid 4.

[0070] Table 1

[0071] Fire extinguishing time (s) Dosage (g) Number of reignitions Fire extinguishing liquid 1 7 97 1 Fire extinguishing liquid 2 37 325 5 Fire extinguishing liquid 3 35 361 6 Fire extinguishing liquid 4 33 332 5

[0072] As can be seen from Table 1, the water film formed by the dissolution of the starch acrylate polymer in water can adhere to the surface of the wooden block. And it was found in the experiment that by adding potassium dihydrogen phosphate, after the water is burned dry, shiny precipitates can be seen adhering to its surface. After spraying water again, it is beneficial to quickly extinguish the fire and effectively prevent reignition.

[0073] "Flowability Test"

[0074] Pour 100 ml of the stock solution (such as Fire Extinguishing Liquid 1) into a medium-sized glass funnel (with a volume of 100 ml) in the laboratory and observe whether it flows out; if it flows out, record the total outflow time when it finishes flowing out.

[0075] Group A4: The starch acrylate polymer and water are mixed at a mass ratio of 10:156.2 and reacted at 50 - 55 °C to prepare the fire extinguishing liquid 5. The fluidity of the fire extinguishing liquid 5 and its fluidity after being diluted 35 times with water are measured according to the "Fluidity Test", and the results are shown in Table 2:

[0076] Group A5: The starch acrylate polymer, water, glycerol, and potassium dihydrogen phosphate are mixed at a mass ratio of 10:138.2:7:11 and reacted at 50 - 55 °C to prepare the fire extinguishing liquid 6. The fluidity of the fire extinguishing liquid 6 and its fluidity after being diluted 35 times with water are measured according to the "Fluidity Test", and the results are shown in Table 2:

[0077] Group A6: The starch acrylate polymer, water, potassium dihydrogen phosphate, and copper trifluoromethanesulfonate are mixed at a mass ratio of 10:142:11:3.2 and reacted at 50 - 55 °C to prepare the fire extinguishing liquid 7. The fluidity of the fire extinguishing liquid 7 and its fluidity after being diluted 35 times with water are measured according to the "Fluidity Test", and the results are shown in Table 2:

[0078] Group A7: The starch acrylate polymer, water, glycerol, potassium dihydrogen phosphate, and iron trifluoromethanesulfonate are mixed at a mass ratio of 10:135:7:11:3.2 and reacted at 50 - 55 °C to prepare the fire extinguishing liquid 8. The fluidity of the fire extinguishing liquid 8 and its fluidity after being diluted 35 times with water are measured according to the "Fluidity Test", and the results are shown in Table 2:

[0079] Table 2

[0080] Without dilution After dilution by 35 times Total outflow time (s) Total outflow time (s) Fire extinguishing liquid 1 139 105 Fire extinguishing liquid 5 No outflow within 20 min 502 Fire extinguishing liquid 6 No outflow within 20 min 491 Fire extinguishing liquid 7 No outflow within 20 min 479 Fire extinguishing liquid 8 No outflow within 20 min 483

[0081] It can be seen from Table 2 that due to the hydrogel formed by the starch acrylate polymer and water, its fluidity is very poor, and even after being diluted 35 times, its fluidity is still not good; only by adding glycerol and copper trifluoromethanesulfonate simultaneously can the fluidity be significantly improved.

[0082] "Test Method for Fire Extinguishing Area and Earth Covering Radius"

[0083] Use a drone to take high-altitude photos, and then use image algorithms (such as the labeling-based algorithm, which divides binary image regions and calculates areas) to calculate the fire extinguishing area; the area of the soil layer covering the surface of the combustible is the effective soil covering area, which means that the combustible is completely covered and no trace of fire can be seen during shooting. x = the major axis of the soil cover / 2 times the explosion radius, and the major axis of the soil cover is the maximum value between the two outermost points of the soil layer covering the surface of the combustible; y = the effective soil covering area / the area of the explosion influence range. The area of the explosion influence range is a circular area, and its radius is equal to the explosion radius; λ = y / x, and λ is the soil covering uniformity rate. When λ = 1, it is the most ideal state, the effective soil covering area can reach the maximum, and the covered soil layer is very uniform; because usually the soil layer covering the surface of the combustible is a very irregular circle, and the outer edge is extremely unevenly distributed, showing a radial shape, and there are large gaps between adjacent radial lines. If you want a larger effective soil covering area, the soil layer covering the area closer to the explosion center cannot be too thick, so that there can be more soil to cover the edge part, thus maximizing the filling of the gaps in the edge part.

[0084] The fire extinguishing bomb of the present invention, after being dropped from a height of 3 meters, explodes and extinguishes fires in the fire field, and its fire extinguishing area is: for every 10 kg of fire extinguishing bomb, the fire extinguishing area is not less than 13 square meters.

[0085] Group B1: The binary fire extinguishing medium is made by mixing a gel-type fire extinguishing liquid and tadpole-shaped glass teardrops in a mass ratio of 1000:2.2, and this binary fire extinguishing medium is labeled as Sample 1. The tadpole-shaped glass teardrops refer to Rupert's drops, which are "glass teardrops" in a tadpole shape formed by melting glass naturally dripping into ice water under gravity, commonly known as "Rupert's drops". The "Rupert's drops" produced by Tiantai Jinggong Xili Glass Bead Co., Ltd. are tadpole-shaped glass teardrops. Finally, λ = 0.77 is measured.

[0086] Group B2: If the binary fire extinguishing medium is replaced with a gel-type fire extinguishing liquid, the corresponding fire extinguishing bomb is subjected to an explosion test, and finally λ = 0.61 is measured.

[0087] Group B3: If the tadpole-shaped glass teardrops are replaced with glass microspheres of the same mass, the corresponding fire extinguishing bomb is subjected to an explosion test, and finally λ = 0.58 is measured.

[0088] Group B4: If the magnesium pellets / magnesium strips and thermite are replaced with TNT explosives, if the same mass of TNT explosives is used, the power of TNT explosives is large, and finally λ = 0.11 is measured. If the amount of TNT explosives is reduced until λ = 0.53, the effective soil covering area is reduced by 72% compared to that in Group B1. This is because in the present invention, the power of TNT explosives is large, and the soil cover generated by the explosion is very easy to splash and has a high dispersion rate, which is not suitable for fire extinguishing.

[0089] Group B5: It is made by mixing a gel-type fire extinguishing liquid and tadpole-shaped glass teardrop objects in a mass ratio of 1000:z. By changing the value of z and measuring the final λ, see the curve graph in Figure 6 , it can be known that z is preferably 2.2; however, due to certain differences in the mass of different individuals of the tadpole-shaped glass teardrop objects, as long as the gel-type fire extinguishing liquid and the tadpole-shaped glass teardrop objects are in a mass ratio of 1000:(2.1~2.3), the usage requirements can be met.

[0090] Among them, at the moment of the intense impact when the fire extinguishing bomb hits the ground, a small amount of tadpole-shaped glass teardrop objects will burst into particles and powders; during the secondary explosion, a large number of tadpole-shaped glass teardrop objects will burst into particles and powders, and their dual effects make the gel-type fire extinguishing liquid tend to be evenly distributed when splashing, thereby effectively improving the soil covering uniformity rate.

[0091] Group C1: If both the metal tube 21 and the shell-type thermal-sensitive initiating mechanism 22 have many circular hollow convex rings on the surface of the circular tube, and initiating explosives such as thermite are filled in the hollow convex rings, after exploding within the fence and collecting the fragments, the number of fragments with an area less than or equal to 2 cm 2 exceeds 71.

[0092] The metal tube 21 and the shell-type thermal-sensitive initiating mechanism 22 of the present invention itself have a function similar to a "spring", and its buffering effect is much better than that of Group C1. When the metal tube 21 and the shell-type thermal-sensitive initiating mechanism 22 need to explode, the ideal state of the blasting opening generated by them is a tear opening, rather than bursting the metal tube 21 and the shell-type thermal-sensitive initiating mechanism 22 into a large number of tiny fragments, which only conforms to the safety principle. After the metal tube 21, the shell-type thermal-sensitive initiating mechanism 22 and the projectile body 10 of the present invention explode within the fence and collect the fragments, the number of fragments with an area less than or equal to 2 cm 2 does not exceed 7.

[0093] Group C2: If the peak values of the three wave peak protrusions two 216 are all equal and the rest are the same, when the obtained fire extinguishing bomb finally explodes, the effective soil covering area is 61% less than that of the fire extinguishing bomb of the present invention. After collecting the fragments after the explosion, the number of fragments with an area less than or equal to 2 cm 2 does not exceed 9.

[0094] Group C3: If the peak values of the three wave peak protrusions five 226 are all equal and the rest are the same, when the obtained fire extinguishing bomb finally explodes, the effective soil covering area is 13% less than that of the fire extinguishing bomb of the present invention. After collecting the fragments after the explosion, the number of fragments with an area less than or equal to 2 cm 2 exceeds 21.

[0095] Group C4: If the wave crest mounting structures of wave crest protrusion 1-212, wave crest protrusion 2-216, wave crest protrusion 3-2110, wave crest protrusion 4-222, and wave crest protrusion 5-226 are all circular ring structures and the rest are the same, when the resulting fire extinguishing bomb finally explodes, the collected fragments have an area less than or equal to 2 cm 2 and the number of fragments exceeds 49, and the effective soil covering area is 2% larger than that of the fire extinguishing bomb described in the present invention.

[0096] In the above embodiment, the gel-type fire extinguishing liquid described in the present invention is dispersed on the surface of the combustible together with the soil covering under the impact force of the explosion. The subsequent sprayed water flow (usually only 2 to 3 rounds of back-and-forth spraying are needed for dilution) will further dilute the gel-type fire extinguishing liquid, and finally a water film, a small amount of foam, and a soil covering layer will be formed on the surface of the combustible, jointly sealing the surface of the combustible and isolating the air to form a three-phase heat insulation barrier (solid, liquid, gas or foam) with strong adhesion, thereby effectively suffocating the combustible object, preventing the continuation of combustion, having a good fire extinguishing effect and a low re-ignition rate; it can effectively extinguish fires in forestry fields such as forests and grasslands.

[0097] When conventional starch acrylate polymer is mixed with water, at least 3 minutes of stirring is required to form a fire extinguishing agent. When this fire extinguishing agent is evenly sprayed on a solid combustible, although a covering film can be formed on the surface of the object and the air can be isolated for fire extinguishing; however, it cannot be filled in the fire extinguishing bomb, and its fluidity is poor. Even when the water gun needs to continuously spray back and forth at least 10 rounds (a total of 30 minutes) on the area covered by the fire extinguishing agent subsequently, no obvious dilution and diffusion of the fire extinguishing agent are found. Only a part of the fire extinguishing agent is observed to be washed away by the water flow and float away, and the block traces are obvious, which results in a significant limitation of its fire extinguishing area; its fire extinguishing area is: for a fire extinguishing bomb filled with 1 kg of this fire extinguishing agent, the maximum fire extinguishing area is 0.5 square meters.

[0098] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent forest fire extinguishing system, characterized in that, It includes a drone cluster, fire extinguishing bombs, forest fire sprinkler trucks, a remote control platform, a bomb dropping calculation module, a data transmission module, and a background processing module. The drone cluster includes several drones. The fire extinguishing bombs are mounted at the bottom of the drones. A video camera is also provided at the bottom of the drones. The images or videos captured by the video camera are transmitted to the background processing module through the data transmission module. An electromagnetic clamp for clamping the fire extinguishing bombs is installed at the bottom of the drones. According to the fire extinguishing plan, the fire commander commands the forest fire sprinkler trucks to sprinkle water for fire extinguishing in the area to be extinguished. At the same time, the drone cluster loaded with fire extinguishing bombs is controlled through the remote control platform to fly over the area to be extinguished in a preset formation. The bomb dropping calculation module calculates the bomb dropping timing, and the remote control platform remotely controls the electromagnetic clamp to open for dropping the fire extinguishing bombs. The fire extinguishing bombs explode in the area to be extinguished to extinguish the fire. The fire extinguishing bomb includes a spherical bomb body (10). Four support feet (20) are fixedly installed on the outer periphery of the bomb body (10), and the four support feet (20) are arranged in a horse stance nail structure. The bomb body (10) includes a spherical shell (100). A lead ball (16) is provided at the center of the spherical shell (100). At least three springs (17) are fixedly installed between the lead ball (16) and the inner wall of the spherical shell (100). At least three groups of embedded thermal detonating mechanisms are also embedded on the surface of the spherical shell (100). A first through hole is provided on the surface of the spherical shell (100). The embedded thermal detonating mechanism includes a covering layer (12) that completely covers the first through hole. The covering layer (12) is hermetically connected to the spherical shell (100). A medicine storage groove (13) is embedded at the first through hole. The notch of the medicine storage groove (13) is covered and hermetically connected by the covering layer (12). An aluminothermic agent layer (14) is filled in the medicine storage groove (13). The aluminothermic agent layer (14) is composed of aluminothermic agent. Several magnesium strips (15) are also provided between the aluminothermic agent layer (14) and the covering layer (12). The magnesium strips (15) are adhesively connected to the medicine storage groove (13). A liquid injection hole is also provided on the surface of the spherical shell (100). A hole plug (11) is hermetically connected at the liquid injection hole. A binary fire extinguishing medium is also filled in the spherical shell (100).

2. The intelligent forest fire extinguishing system according to claim 1, characterized in that: The fire extinguishing plan includes dividing the open fire area for fire extinguishing according to the fire intensity, extinguishing the hidden fire area at a fixed point, and setting up a fire prevention isolation belt. The drones are equipped with infrared thermometers and thermal imagers to identify the hidden fire area. When a forest fire occurs, the drones and fire extinguishing bombs are transported to a safe location near the fire by off-road vehicles or tracked vehicles, and the forest fire sprinkler trucks also drive to a safe location near the fire. First, the drones fly to the area where the fire occurs without carrying fire extinguishing bombs for shooting. The pictures and videos obtained from the shooting are transmitted to the background processing module through the data transmission module. The fire commander formulates a fire extinguishing plan according to the actual situation of the fire, and the forest fire sprinkler trucks conduct multiple rounds of fire extinguishing on the area where the fire occurs. Secondly, the drones carry fire extinguishing bombs and cooperate with the forest fire sprinkler trucks to conduct dual fire extinguishing in the area to be extinguished. Finally, after the fire extinguishing mission is completed, the UAV returns and removes the unthrown fire extinguishing bombs.

3. An intelligent forest fire extinguishing system according to claim 1, characterized in that: The support feet (20) include a metal tube (21), a shell-type thermal initiation mechanism (22), an extension tube (23), and a tapered head (24). The metal tube (21) includes a first circular tube body (211). A cover (25) is hermetically connected to the head end of the first circular tube body (211). A first wave crest protrusion (212) is connected to the tail end of the first circular tube body (211). The first wave crest protrusion (212) is a wave crest structure of a sine wave. The first wave crest protrusion (212) is connected to a first annular tube portion (213) with an arc-shaped cross-section. The first annular tube portion (213) is connected to a first tapered tube portion (214). The large end of the first tapered tube portion (214) is connected to the first annular tube portion (213). The small end of the first tapered tube portion (214) is connected to a second circular tube body (215). The second circular tube body (215) is connected to a first group of wave crest protrusions. The first group of wave crest protrusions consists of three second wave crest protrusions (216). The second wave crest protrusions (216) are wave crest structures of a sine wave. The wave peak values of the three second wave crest protrusions (216) are arranged to continuously increase in the direction away from the second circular tube body (215). The first group of wave crest protrusions is connected to a second annular tube portion (217) with an elliptical arc-shaped cross-section. The second annular tube portion (217) is connected to a second tapered tube portion (218). The small end of the second tapered tube portion (218) is connected to a third annular tube portion (219) with an arc-shaped cross-section. The third annular tube portion (219) is connected to a third wave crest protrusion (2110). The third wave crest protrusion (2110) is a wave crest structure of a sine wave. The third wave crest protrusion (2110) is connected to a first circular connecting portion (2111).

4. An intelligent forest fire extinguishing system according to claim 3, characterized in that: The shell-type thermal detonator mechanism (22) includes a third circular tube body (221). A second connecting portion (229) which is adhesively connected to the first connecting portion (2111) and has an annular structure is connected to the head end of the third circular tube body (221). A fourth wave crest protrusion portion (222) is connected to the tail end of the third circular tube body (221). The fourth wave crest protrusion portion (222) is connected to a fourth annular tube portion (223) with an arc-shaped cross-section. The fourth annular tube portion (223) is connected to a fifth annular tube portion (224) with an elliptical arc-shaped cross-section. The fifth annular tube portion (224) is connected to a sixth annular tube portion (225) with an arc-shaped cross-section. The sixth annular tube portion (225) is connected to a second wave crest protrusion group which is composed of three fifth wave crest protrusion portions (226). The fifth wave crest protrusion portion (226) has a wave crest structure of a sine wave. The wave crest values of the three fifth wave crest protrusion portions (226) are continuously decreased in the direction away from the sixth annular tube portion (225). The second wave crest protrusion group is connected to a third tapered tube portion (227). A third connecting portion (228) with an annular structure is connected to the small end of the third tapered tube portion (227). The tail end of the extension tube (23) is hermetically connected to the diameter end of the conical head (24). A fourth connecting portion (2111) which is adhesively connected to the third connecting portion (228) and has an annular structure is connected to the head end of the extension tube (23). The fourth annular tube portion (223), the fifth annular tube portion (224) and the sixth annular tube portion (225) form a first annular groove. An inner cylinder (2211) which covers the inner cavities of the fourth wave crest protrusion portion (222), the first annular groove and the three fifth wave crest protrusion portions (226) is hermetically connected to the inner cavity of the shell-type thermal detonator mechanism (22). The head end of the inner cylinder (2211) is hermetically connected to the inner wall of the third circular tube body (221). The tail end of the inner cylinder (2211) is hermetically connected to the inner wall of the third tapered tube portion (227). Magnesium particles are filled between the fourth wave crest protrusion portion (222) and the inner cylinder (2211), between the first annular groove and the inner cylinder (2211), and between the fifth wave crest protrusion portion (226) and the inner cylinder (2211). An outer cylinder (2210) is arranged inside the inner cylinder (2211). The tail end of the outer cylinder (2210) is hermetically connected to the tail end of the inner cylinder (2211). A sealing plate (2212) is hermetically connected between the head end of the outer cylinder (2210) and the head end of the inner cylinder (2211). The sealing plate (2212) contacts the second connecting portion (229). Thermite is filled between the outer cylinder (2210) and the inner cylinder (2211). A gel-type fire extinguishing liquid is also filled inside the shell-type thermal detonator mechanism (22).

5. An intelligent forest fire extinguishing system according to claim 4, characterized in that: The wave crest convex part four (222), the annular pipe part four (223), the annular pipe part five (224), the annular pipe part six (225) and the wave crest convex part five (226) are all made of polyethylene. The outer cylinder (2210) is made of aluminum alloy. The inner cylinder (2211) is made of a plurality of aluminum alloy rods and polyether ether ketone membranes used for sealing and connecting adjacent two aluminum alloy rods. The circular pipe body three (221) and the conical pipe part three (227) are made of aluminum alloy.

6. The intelligent forest fire extinguishing system according to claim 4, wherein: The covering layer (12) is made of benzoxazine resin. The medicine storage tank (13) is made of polyarylsulfone. The spherical shell (100) is made of aluminum alloy.

7. An intelligent forest fire extinguishing system according to claim 4, characterized in that: The gel-type fire extinguishing liquid is made by mixing starch acrylate polymer, water, glycerol, potassium dihydrogen phosphate, and copper trifluoromethanesulfonate according to a mass ratio of 10:135:7:11:3.

2.

8. An intelligent forest fire extinguishing system according to claim 7, characterized in that: The binary fire extinguishing medium is made by mixing the gel-type fire extinguishing liquid and tadpole-shaped glass teardrop objects according to a mass ratio of 1000:(2.1~2.3).

9. An intelligent forest fire extinguishing system according to claim 4, characterized in that: Three springs (17) are provided, and six groups of embedded thermal detonating mechanisms are provided.

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