Combustion ball and ignition system of remote projection type ignition device in forest

Abstract

The invention relates to a combustion ball of a remote projection type ignition device in forest and an ignition system, and the combustion ball comprises a plastic ball shell made of high impact polystyrene; the potassium permanganate powder is packaged in the spherical shell; the liquid reagent is mixed with the potassium permanganate in a mechanical injection manner during use; wherein the liquid reagent is a mixture of ethylene glycol and water, and delayed ignition time of 20-60 seconds is generated after the potassium permanganate powder and the liquid reagent are mixed by regulating and controlling the mass of the potassium permanganate powder and the composition and the volume of the liquid reagent. The remote projection type ignition system comprises the combustion ball and a liquid bottle used for storing the liquid reagent. The injection device is used for injecting the liquid reagent into the combustion ball from the liquid bottle; and the launching device is used for projecting the combustion ball injected with the liquid reagent to a target area. The device has the effects of being high in safety, high in operation efficiency, stable and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forest fire and planned burning, and particularly relates to a burning ball point burning system of a long-distance projection type point burner in a forest. BACKGROUND

[0002] In the field of forest fire management, planned burning (also known as "point burning") is a crucial preventive operation, and the core purpose is to clear the combustible materials accumulated under the forest by means of active and controlled burning, so as to build an effective fireproof isolation belt, thereby preventing and controlling the occurrence of large-scale forest fires from the source, and protecting the safety of forest ecology and surrounding personnel and property, and therefore the technology has irreplaceable necessity in the daily management of forest fire.

[0003] At present, the commonly used point burning tools in the industry are mainly divided into three categories, which are oil dripping igniters, throwing type fire starters and other devices based on fire powder propulsion or electronic ignition, wherein the oil dripping igniters are mostly held by personnel or hung by helicopters, and the operation is performed by dripping mixed fuel oil and igniting, the throwing type fire starters are mostly simple combustion bottles or chemical fire starters, and rely on personnel to throw at close range, and other ignition devices are often based on fire powder or electronic components as the core ignition mechanism.

[0004] However, the existing technical solutions have obvious and urgent defects, first of all, the safety is poor, the oil dripping igniters and the throwing type fire starters both need the operation personnel to be present or close to the fire line area, and face direct life dangers such as falling, burning, being surrounded by fire, and even if part of the devices do not need personnel to operate at close range, there are also storage and transportation risks due to structural or principle problems, secondly, the terrain adaptability is weak, the traditional tools are difficult to carry out effective operation in complex dangerous terrains such as gullies, marshes, cliffs and dense shrubs, and cannot cover all areas that need to be point burned, thirdly, the operation efficiency is low, the mode mainly operated by manual operation is slow, and it is difficult to quickly form a large area or long distance fireproof isolation belt, and cannot meet the needs of large-scale planned burning, and finally, the reliability is insufficient, and is greatly affected by environmental factors such as strong wind, light rain and dampness, the oil dripping igniters are easy to be wetted and cannot be ignited, and the electronic ignition devices are prone to failure in damp environment, resulting in unstable ignition success rate. SUMMARY

[0005] In view of the defects of the prior art, the purpose of the present application is to provide a burning ball of a long-distance projection type point burner in a forest, which has the effects of high safety, high operation efficiency and stable reliability.

[0006] The above invention purpose of the present application is realized by the following technical scheme:

[0007] A burning ball of a long-distance projection type point burner in a forest, comprising a spherical shell made of high impact polystyrene;

[0008] Potassium permanganate powder encapsulated in the spherical shell;

[0009] and a liquid reagent that reacts with the potassium permanganate powder by mechanical injection when in use;

[0010] The liquid reagent is a mixture of ethylene glycol and water, and the amount of potassium permanganate powder and the composition and amount of the liquid reagent are configured to produce different reaction rates when mixed.

[0011] The above technical solution provides a combustion ball with a delay ignition function, which uses potassium permanganate powder and ethylene glycol-water mixture as a reaction system, and can spontaneously initiate a chemical reaction after mixing without an external ignition source, producing a safe ignition delay of 20-60 seconds, providing fundamental safety for subsequent projection operations and personnel evacuation, while ensuring the autonomy and reliability of ignition.

[0012] As a further technical solution of the present application, the filling amount of potassium permanganate powder encapsulated in the spherical shell is 2-4g.

[0013] The above technical solution controls the amount of potassium permanganate powder to a reasonable range of 2-4g, providing sufficient oxidizing agent for the combustion ball, ensuring the sufficiency and continuity of the combustion reaction, making the combustion ball effective in igniting surface combustible materials, and avoiding excessive danger or cost waste due to excessive drug amount.

[0014] As a further technical solution of the present application, the filling amount of potassium permanganate powder is 3g, the total volume of the injected liquid reagent is 0.5mL, and the volume ratio of ethylene glycol to water in the liquid reagent is 5:1 to 5:10.

[0015] The above technical solution controls a single variable, the mass of potassium permanganate powder is 3g, the total volume of the liquid mixture is 5mL, and the volume ratio of ethylene glycol to water is changed from 5:1 to 5:10. Experimental verification shows that as the relative content of water increases, the ignition time gradually extends to 60 seconds, and a stable flame lasts for about 2 minutes, achieving safe delay and effective ignition.

[0016] The present application also discloses a remote projection type ignition system comprising the combustion ball, which further comprises a liquid bottle for storing the liquid reagent;

[0017] an injection device for injecting the liquid reagent from the liquid bottle into the combustion ball;

[0018] and a launching device for launching the combustion ball after injecting the liquid reagent into the target area.

[0019] By the technical scheme, a complete and safe point burning operation system is constructed, the collaborative design of the "liquid bottle-injection device-launching device" is realized, the separation storage, transportation and rapid activation and projection of the liquid reagent and the solid combustion ball in the whole process are realized, the safety of storage and transportation is maximized, and the convenience and overall efficiency of on-site operation are greatly improved.

[0020] As a further technical scheme of the present application: the launching device is a handheld launcher.

[0021] By the technical scheme, the handheld launcher is used to realize flexible operation of a single soldier, adapt to the forest close-range and small-range point burning scene, and be convenient and quick in response.

[0022] As a further technical scheme of the present application: the launching device is a fixed launcher for being carried on a mobile platform.

[0023] By the technical scheme, the launching device is configured as a fixed launcher for being carried on a mobile platform, which can be adapted to a mobile platform such as a helicopter, a drone and an all-terrain vehicle, realize large-range and rapid distribution of the combustion ball, form a linear fire belt required for a long-distance fire isolation belt in a short time, and be especially suitable for large-scale point burning operation of a large area of forest, and solve the problems of low efficiency and limited operation range of manual point burning.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. By using the self-reaction system of potassium permanganate powder and ethylene glycol-water mixture and accurately configuring the dosage, 20-60 seconds of autonomous delay ignition without external ignition source is realized, safety guarantee for projection operation and personnel evacuation is provided, and autonomy and reliability of ignition are ensured.

[0026] 2. By the golden ratio of 3g of potassium permanganate powder and 0.5mL of specific ratio of ethylene glycol-water mixture, accurate control (20-60 seconds) and stable flame (about 2 minutes) of ignition delay are realized, and the success rate and delay accuracy of ignition in complex environment are improved.

[0027] 3. By the collaborative design of "liquid bottle-injection device-launching device", the separation storage, rapid activation and remote projection of the liquid reagent and the combustion ball are realized, the storage and transportation safety is ensured, and the operation convenience and overall efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structural diagram of the combustion ball of the present application.

[0029] Figure 2It is a structure schematic diagram of a remote projection type point burning system of a combustion ball of the present application.

[0030] Figure 3 It is a variation rule graph of the ignition time of different amounts of potassium permanganate powder reacting with different volumes of ethylene glycol (without water).

[0031] Figure 4 It is a variation rule graph of the ignition time of a quantitative potassium permanganate powder (3g) reacting with different proportions of ethylene glycol, water mixture (Vtotal = 0.5mL).

[0032] The figure mark: 1, the ball shell; 2, potassium permanganate powder; 3, combustion ball; 4, liquid bottle; 5, injection device; 6, launching device. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments in the present application are within the protection scope of the present application.

[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] Example one:

[0037] Reference Figure 1The application discloses a burning ball of a long-range projection type point burner in a forest, which comprises a ball shell 1, the material of the ball shell 1 is preferably high-impact polystyrene, the material is light in texture and good in impact resistance, can ensure that the ball shell 1 is not easy to break when being launched and landing, and can participate in combustion; the ball shell 1 is made of the material by adopting an injection molding process, the diameter of the ball shell 1 is 3 cm, high-potassium permanganate powder 2 is encapsulated in the ball shell 1, and a liquid reagent mixed with the high-potassium permanganate powder 2 by injection is used in use, wherein the liquid reagent is a mixture of ethylene glycol and water, and the composition and the amount of the high-potassium permanganate powder 2 and the liquid reagent are accurately configured, and after the high-potassium permanganate powder 2 and the liquid reagent are mixed, a delay ignition time of 20 seconds to 60 seconds can be generated.

[0038] The amount of the high-potassium permanganate powder 2 filled in the ball shell 1 is 2 g to 4 g, and the high-potassium permanganate powder 2 filled is high-potassium permanganate powder 2 with a purity of greater than or equal to 99%, so that the reaction purity and stability are ensured.

[0039] Referring to Figure 3 , it is proved by experiments that when the amount of the high-potassium permanganate powder 2 is 2 g to 4 g, the liquid reagent is only pure ethylene glycol (without water) and the volume is 0.4 mL to 0.8 mL, the ignition time under different amount combinations is stable in the interval of 15 seconds to 20 seconds, and the basic experimental data prove the ignition reliability of the reaction of the high-potassium permanganate powder 2 and the ethylene glycol.

[0040] In order to realize the safe delay meeting the long-range projection requirement and avoid that personnel evacuation time is insufficient due to too fast ignition, the delay effect is further optimized by regulating and controlling the reagent composition, that is, by adding water into the system, the reaction activity of the high-potassium permanganate powder 2 and the ethylene glycol is reduced, and then the accurate regulation and control of the delay ignition time are realized.

[0041] When the amount of the high-potassium permanganate powder 2 is controlled to be 3 g, the total volume of the liquid reagent (a mixture of ethylene glycol and water) is fixed to be 0.5 mL; referring to Figure 4 by adjusting the volume ratio of the ethylene glycol to water (controlled to be between 5:1 and 5:10) in the liquid reagent, the ignition time can be gradually prolonged from the basic interval of 15 seconds to 20 seconds when the pure ethylene glycol reacts to the target delay range of 20 seconds to 60 seconds, so that the delay regulation and control meeting the long-range projection safety requirement are realized.

[0042] Meanwhile, the high-potassium permanganate powder with a purity of greater than or equal to 99% can effectively eliminate the interference of impurities and water on the reaction stability, and ensure the consistency of the delay time and the ignition effect in different environments. It is proved by the above series of experiments that the configuration of “3 g of high-potassium permanganate + 0.5 mL of a specific proportion of ethylene glycol-water mixed reagent” can reliably cover the target delay ignition requirement of 20 seconds to 60 seconds, and can adapt to the differentiated requirements for the ignition delay in different operation scenes by flexibly adjusting the proportion of the ethylene glycol to water, so as to provide sufficient safety windows for personnel evacuation, aircraft leaving and the landing of the burning ball 3 after launching.

[0043] Referring to Figure 2 The application also discloses a long-distance projection point burning system comprising the burning ball 3, a liquid bottle 4 for separately storing a liquid reagent, an injection device 5 for extracting the liquid reagent in the liquid bottle 4 and injecting the liquid reagent into the ball shell 1 of the burning ball 3 to mix with the potassium permanganate powder 2, and a launching device 6 for launching the burning ball 3 after the liquid reagent is injected into the ball shell 1; during storage and transportation, the solid burning ball 3 filled with the potassium permanganate powder 2 and the liquid bottle 4 filled with the liquid reagent are separately packaged and stored, so that the two are prevented from being in contact with each other to cause an unexpected reaction and the safety during the whole process is ensured.

[0044] The launching device 6 is divided into two types, one is a handheld launcher 6 based on compressed air, spring or electromagnetic principle, which is convenient for single soldier to carry and operate, and the other is a fixed launcher 6 which can be mounted on a mobile platform such as a helicopter, a drone, an all-terrain vehicle or a hovercraft, and can realize rapid, mobile and large-scale distribution of the burning ball 3.

[0045] Before operation, an operator needs to fill a certain amount of the burning ball 3 into a ball bin of the launching device 6 and fill a mixed liquid of ethylene glycol and water with a volume ratio of 5:1 to 5:10 into the liquid bottle 4 to complete the pre-war material preparation; then, the operator fills the burning ball 3 into a launching position of the launching device 6, injects the mixed liquid of ethylene glycol and water in the liquid bottle 4 into the burning ball 3 through the injection device 5 to mix with the potassium permanganate powder 2 and start a delay chemical reaction; within a safe time window (a delay period of 20-60 seconds), the operator aims at a target area and operates the launching device 6 to launch the activated burning ball 3; after the burning ball 3 flies and lands on the target area, the ethylene glycol and the potassium permanganate powder 2 in the burning ball 3 fully contact and react violently, the temperature rapidly rises, the ball shell 1 is finally ignited, a strong flame lasting for about 2 minutes is generated, and the ground combustible material is successfully ignited. Through the above working process, the whole-process integrated operation from reagent preparation, activation to launching is realized, and the convenience, safety and efficiency of operation are improved.

[0046] The implementation principle of the present application is: based on the redox chemical reaction of potassium permanganate powder 2 and ethylene glycol-water mixture, when the liquid reagent is mixed with potassium permanganate powder 2 by injection, the two will have a violent chemical reaction, and the heat accumulated by the slow initial reaction will cause the temperature to rise exponentially, causing the temperature to reach the ignition point of ethylene glycol and causing a violent combustion phenomenon; in addition, high temperature promotes the decomposition of potassium permanganate powder 2 to produce oxygen, which acts as a combustion aid to promote the combustion of ethylene glycol, further igniting the spherical shell 1 to achieve autonomous combustion without an external ignition source; by controlling the amount of potassium permanganate powder 2, ethylene glycol and water, especially the addition of water to reduce the reaction activity, a 20-60 second delay ignition time can be achieved, which provides a sufficient safety window for personnel evacuation, vehicle departure and combustion ball 3 landing after launch; at the same time, the purity of potassium permanganate powder 2 is ≥99%, which eliminates the interference of impurities and moisture on the reaction, significantly improving the stability and ignition success rate of the reaction.

[0047] The embodiments of the specific implementation are the preferred embodiments of the present application, not limited by the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A combustion ball for a long-range projection igniter in a forest, characterized in that, Including spherical shells made of high-impact polystyrene; Potassium permanganate powder encapsulated within the spherical shell; And a liquid reagent that is mixed with the potassium permanganate powder by mechanical injection during use; The liquid reagent is a mixture of ethylene glycol and water. By adjusting the amount of potassium permanganate powder and the composition and amount of the liquid reagent, different reaction rates can be achieved by mixing the two, thereby achieving different delayed ignition times.

2. The combustion ball of a long-range projection igniter in a forest according to claim 1, characterized in that, The amount of potassium permanganate powder encapsulated inside the spherical shell ranges from 2g to 4g.

3. The combustion ball of a long-range projectile igniter in a forest according to claim 1, characterized in that, The potassium permanganate powder has a fixed mass of 3g, the total volume of the liquid reagent injected is 0.5mL, and the volume ratio of ethylene glycol to water in the liquid reagent is 5:1 to 5:

10.

4. A remote-projection ignition system comprising a combustion ball according to any one of claims 1 to 3, characterized in that, It also includes a liquid bottle for storing the liquid reagent; An injection device for injecting the liquid reagent from the liquid bottle into the combustion ball; And a launching device for projecting the combustion ball, after it has been injected with liquid reagent, into a target area.

5. A remote projection-type ignition system according to claim 4, characterized in that, The launching device is a handheld launcher.

6. The remote projection ignition system according to claim 4, characterized in that, The launching device is a fixed launcher mounted on a mobile platform.

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