Non-pressure storage type forest fire extinguishing device and fire extinguishing method
By using solid gas converters in the drone forest fire extinguishing device to generate nitrogen to drive the diffusion of the fire extinguishing agent, and increasing the starting current and safe non-starting current, the battery switch socket is designed to solve the problems of poor diffusion of the fire extinguishing agent and safety hazards, achieving a safer and more reliable fire extinguishing effect.
Patent Information
- Application Number
- CN202510649491.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2025-07-08
AI Technical Summary
The non-pressure-storage forest fire extinguishing device equipped with existing drones has problems such as poor diffusion effect, easy to start incorrectly and safety hazards.
A solid gas converter is used to generate nitrogen to drive the diffusion of the fire extinguisher, increase the starting current and safe non-starting current, and design a battery switch socket to increase safety guarantees, and ensure reliability through multiple program startups.
The effective diffusion of fire extinguishing agent is achieved, the safety and reliability of the device are improved, and the safety hazards caused by mistaken start-up and mist touch are avoided.
Smart Images
Figure CN120267992A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of dry powder fire extinguishing equipment, and relates to a non-pressure storage type forest fire extinguishing device and a fire extinguishing method for use in forest fire extinguishing by unmanned aerial vehicles (UAVs). Background Art
[0002] With the development of the low-altitude economy and the wide application of UAVs, the UAV carrying a non-pressure storage type forest fire extinguishing device (hereinafter referred to as the forest fire extinguishing device) plays a crucial role in the early detection, early disposal, and early extinguishment of early forest fire points to avoid major forest fires.
[0003] Currently, the typical structure of the forest fire extinguishing device used for UAVs to extinguish forest fires is as shown in the appendix Figure 1 and mainly includes: 1. UAV hook release, 2. device hook, 3. detection delay device, 4. blasting wire socket, 5. control integrator, 6. power supply switch of the control integrator, 7. blasting unit, 8. fire extinguishing agent, 9. housing, etc.
[0004] Before the forest fire extinguishing device is thrown, the process is as follows: set the parameters of the detection delay device 3 of the forest fire extinguishing device, the UAV hook release 1 hangs the forest fire extinguishing device through the device hook 2, insert the blasting wire plug (accessory with a pull wire) into the blasting wire socket 4 and fix the pull wire on the UAV frame, turn on the power supply switch 6 of the control integrator, and the UAV takes off with the forest fire extinguishing device and reaches the predetermined height above the forest fire. Throwing work process: the UAV hook release 1 releases the hook, the forest fire extinguishing device falls under its own weight, the blasting wire plug disengages from the blasting wire socket 4 under the action of the device gravity through the pull wire, the detection delay device 3 starts to work for detection or timing, when the forest fire extinguishing device falls to the predetermined height or is delayed to the set time, the control integrator 5 supplies power to the blasting unit 7 to initiate an explosion, the housing 9 ruptures under the impact force, and the fire extinguishing agent 8 is scattered into the fire area under the action of the impact force to extinguish the fire.
[0005] Currently, the non-pressure storage type forest fire extinguishing device carried by UAVs mainly has the following several prominent problems: Firstly, according to the regulations in XF 602-2013 dry powder fire extinguishing device and the law of conservation of energy, the non-pressure storage fire extinguishing device is gas-driven; the fire extinguishing agent particles are small and light in mass (such as ABC dry powder), the particles obtain less energy, and the fire extinguishing agent particles cannot be well diffused. Using a blasting unit to drive the diffusion of the fire extinguishing agent has very unsatisfactory effects; Secondly, the blasting unit of the forest fire extinguishing device uses an electric ignition cartridge, and its reliable starting current ≥ 0.6A, and the safe non-starting current ≤ 150mA; since the forest fire extinguishing device is carried by a UAV during use, the UAV, as a special device, is prone to generate an electromagnetic field, causing a micro current to be generated in the control integrator of the forest fire extinguishing device. When it is greater than the safe non-starting current of the device, 150mA, the forest fire extinguishing device is likely to be misstarted; Thirdly, during the production, transportation, storage, and use of the forest fire extinguishing device, the power supply switch of the control integrator is extremely likely to be accidentally touched to the on position. If the blasting line plug is accidentally touched and detached, the blasting unit will start, causing harm to the operator and posing a safety hazard. Summary of the Invention
[0006] The object of the present invention is to address the above problems and propose a non-pressurized forest fire extinguishing device and a fire extinguishing method for being carried by an unmanned aerial vehicle.
[0007] The main technical solution of the present invention: A non-pressurized forest fire extinguishing device, which is characterized in that it includes a housing. An unmanned aerial vehicle hook release and a device hook are provided at the top of the housing. A control integrator is provided in the upper part of the housing. A control integrator power supply switch, a detection delay device, a signal line socket, and a battery switch socket are provided on the upper part of the control integrator. A solid-gas converter is connected to the lower part of the control integrator; an extinguishing agent is disposed in the sealed cavity of the housing, and the solid-gas converter is buried in the extinguishing agent; the signal line socket is equipped with a signal line plug with a pull wire, and the battery switch socket is equipped with a battery switch plug.
[0008] Preferably, the control integrator is powered by a built-in battery, and the power supply is controlled by the battery switch plug, the battery switch socket, and the control integrator power supply switch.
[0009] Preferably, the activation of the detection delay device is controlled by the signal line socket and the signal line plug.
[0010] Preferably, the activation of the solid-gas converter is controlled by the detection delay device and the control integrator.
[0011] Preferably, the solid-gas converter includes a housing, an ignition device and a solid gas generating agent are disposed inside the housing, and a plurality of exhaust holes are provided on the housing.
[0012] Further preferably, the aperture of the exhaust hole is 3.5 mm.
[0013] Further preferably, the ignition device uses an electric starter, the reliable starting current ≥ 1.2 A, and the safe non-starting current ≤ 400 mA.
[0014] Further preferably, the electric starter uses the commercially available RY3006 type.
[0015] Further preferably, the mass percentage content of the components of the solid gas generating agent: strontium nitrate 60%, 5-AT (5-aminotetrazole) 40%.
[0016] The present invention also provides a fire extinguishing method using the above non-pressure-stored forest fire extinguishing device, which includes the following processes: (1) Set the delay parameter of the detection timer. Mount the forest fire extinguishing device on the unmanned aerial vehicle (UAV) through the device hook and the UAV unhooking device. Insert the signal line plug with a pull wire into the signal line socket and fix the pull wire on the UAV frame. Then insert the battery switch plug into the battery switch socket, turn on the power supply switch of the control integrator, start the control integrator 5, and the UAV takes off with the forest fire extinguishing device to reach a predetermined height above the forest fire; (2) The UAV unhooking device unhooks, and the forest fire extinguishing device falls under its own weight. The signal line plug is pulled out of the signal line socket by the pull wire and separated. The detection timer starts to work and record time. During the falling process of the forest fire extinguishing device until the delay of the detection timer 3 ends, the control integrator supplies power to start the gas-solid converter. The gas-solid converter generates a large amount of gas and quickly releases it through the exhaust holes. The housing is pressurized and ruptured under the action of the gas, and the fire extinguishing agent is sprayed into the fire area under the action of the gas. The gas and the fire extinguishing agent act together to extinguish the fire.
[0017] Preferably, the set delay time of the detector is 2 s or 3 s. The fire extinguishing device of the present invention addresses the first problem existing in the prior art: using a gas-solid converter to generate nitrogen to drive the diffusion of the fire extinguishing agent, which well solves the problem of insufficient energy of the existing blasting unit for driving the fire extinguishing agent. The gas-solid converter mainly includes an ignition device, a solid gas-generating agent, and a housing. The ignition device and the solid gas-generating agent are installed in the housing. The solid gas-generating agent is ignited by the ignition device, and the gas-generating agent generates a large amount of nitrogen, which is discharged through the exhaust holes on the housing of the gas-solid converter and mixed with the fire extinguishing agent in the housing of the fire extinguishing device to quickly build pressure until the housing ruptures. The nitrogen and the fire extinguishing agent mixture are sprayed onto the fire source and act together to extinguish the fire.
[0018] The fire extinguishing device of the present invention addresses the second problem existing in the prior art: increasing the starting current and the safe non-starting current. The ignition device of the gas-solid converter uses an electric starter, and its reliable starting current ≥ 1.2 A, and the safe non-starting current ≤ 400 mA; both the starting current and the safe non-starting current are doubled compared to the above currents, making the forest fire extinguishing device safer and more reliable.
[0019] The fire extinguishing device of the present invention addresses the third problem existing in the prior art: designing a battery switch socket. Even if the power supply switch of the control integrator is accidentally touched and the signal plug is separated from the socket, when the battery switch plug is not inserted, the battery does not supply power, and the forest fire extinguishing device has no electrical signal and does not work, further increasing the safety guarantee.
[0020] The beneficial effects of the present invention: 1. Impulse obtained by the fire extinguishing agent in physics: Impulse = Applied force × Action time of the force (I = F * t); The action time of the blasting unit on the fire extinguishing agent is no more than 10 ms; The action time of the solid-gas converter on the fire extinguishing agent is more than 30 ms; Therefore, the impulse obtained by the fire extinguishing agent of the fire extinguishing device of the present invention is greater and it is easier to disperse. 2. When the microcurrent formed by the electromagnetic radiation of the drone is constant, the larger the starting current and the safe non-starting current of the device, the safer it is. The starting current of the electric starter is 2 times that of the ignition primer of the blasting unit, and the safe non-starting current of the electric starter is about 2.7 times that of the ignition primer of the blasting unit; Therefore, the fire extinguishing device of the present invention is safer. 3. One more anti-misoperation program means one more level of safety; The existing forest fire extinguishing device starts to work after 2 program starts after being mounted, while the present invention needs to go through 3 program starts, and the reliability is higher. Description of the Drawings
[0021] Figure 1 It is a structural schematic diagram of an existing non-pressurized forest fire extinguishing device.
[0022] In the figure: 1. Drone hook release, 2. Device hook, 3. Detection delay device, 4. Blasting wire socket, 5. Control integrator, 6. Power supply switch of the control integrator, 7. Blasting unit, 8. Fire extinguishing agent, 9. Housing.
[0023] Figure 2 It is a structural schematic diagram of the non-pressurized forest fire extinguishing device of the embodiment of the present invention.
[0024] In the figure: 1. Drone hook release, 2. Device hook, 3. Detection delay device, 4. Signal wire socket, 5. Control integrator, 6. Power supply switch of the control integrator, 7. Solid-gas converter, 8. Fire extinguishing agent, 9. Housing, 10. Battery switch socket. Detailed Embodiment
[0025] The present invention will be described in detail below in conjunction with the embodiments and the drawings.
[0026] Embodiment A non-pressurized forest fire extinguishing device, used for forest fire extinguishing by drones, and its structure refers to the attached Figure 2 , mainly including a housing 9. The top of the housing 9 is provided with a drone hook release 1 and a device hook 2. The upper part of the housing 9 is provided with a control integrator 5. The upper part of the control integrator 5 is provided with a power supply switch 6 of the control integrator, a detection delay device 3, a signal wire socket 4 and a battery switch socket 10. The lower part of the control integrator 5 is connected to a solid-gas converter 7; The closed cavity of the housing 9 is internally provided with a fire extinguishing agent 8, and the solid-gas converter 7 is buried in the fire extinguishing agent 8; The signal wire socket 4 is equipped with a signal wire plug with a pull wire, and the battery switch socket 10 is equipped with a battery switch plug.
[0027] In the embodiment, the control integrator 5 is powered by a built-in battery, and the power supply is controlled by a battery switch plug, a battery switch socket 10, and a control integrator power supply switch 6; the activation of the detection delay device 3 is controlled by a signal line socket 4 and a signal line plug; the activation of the solid-gas converter 7 is controlled by the detection delay device 3 and the control integrator 5.
[0028] In the embodiment, the solid-gas converter 7 includes a housing, which is internally provided with an ignition device and a solid gas generating agent. The housing is provided with dense exhaust holes, and the aperture of the exhaust holes is 3.5 mm; the ignition device uses an electric starter, the reliable starting current ≥ 1.2 A, and the safe non-starting current ≤ 400 mA.
[0029] Example 1 The structure of the non-pressurized forest fire extinguishing device is the same as above. The electric starter uses the commercially available RY3006 type, which complies with the regulations of XF 499.1-2010; it is tested by a gas generator P-t test system, the reliable starting current ≥ 1.2 A, and the safe non-starting current ≤ 400 mA.
[0030] The mass percentage content of the components of the solid gas generating agent: strontium nitrate 60%, 5-AT (5-amino tetrazole) 40%; the maximum particle size of the solid residue after action is less than 0.2 mm.
[0031] Example 2 The fire extinguishing method using the non-pressurized forest fire extinguishing device of Example 1: (1) Set the parameters of the detection delay device 3 of the forest fire extinguishing device, that is, select the delay time of 2 s or 3 s. Hang the forest fire extinguishing device on the unmanned aerial vehicle through the device hook 2 and the unmanned aerial vehicle decoupler 1. Insert the signal line plug with a pull wire into the signal line socket 4 and fix the pull wire on the unmanned aerial vehicle frame. Then insert the battery switch plug into the battery switch socket 10, turn on the control integrator power supply switch 6, the control integrator 5 starts, and the unmanned aerial vehicle carries the forest fire extinguishing device and takes off to the predetermined height above the forest fire. (2) The unmanned aerial vehicle decoupler 1 decouples, and the forest fire extinguishing device falls under its own weight. The signal line plug is pulled out of the signal line socket 4 by the pull wire and detached. The detection delay 3 starts to work and starts timing. During the falling process of the forest fire extinguishing device until the detection delay device 3 delays to end, the control integrator 5 supplies power to the solid-gas converter 7 to start. The solid-gas converter generates a large amount of gas and quickly releases it through the exhaust holes. The housing 9 is pressure-stored and ruptured under the action of the gas, and the fire extinguishing agent is sprayed into the fire area under the action of the gas, and the fire is extinguished by the dual action of the gas and the fire extinguishing agent.
[0032] The fire extinguishing device in the embodiment uses a solid-gas converter, and the time for it to act on the fire extinguishing agent is greater than 30 ms. Therefore, the impulse obtained by the fire extinguishing agent of the fire extinguishing device in the embodiment is greater and it is easier to spread.
[0033] The comparison between the embodiment of the present invention and the existing non-pressurized forest fire extinguishing device is as follows:
[0034] The fire extinguishing device for forest fire fighting by drones is such that when the microcurrent formed by the electromagnetic radiation of the drone is constant, the larger the starting current and the safe non-starting current of the device, the safer it is. From the above comparison data, it can be seen that the starting current of the electric starter in the embodiment is twice that of the ignition charge of the blasting unit of the existing device, and the safe non-starting current of the electric starter is about 2.7 times that of the ignition charge of the blasting unit of the existing device; therefore, the fire extinguishing device in the embodiment is safer.
[0035] For safety, the fire extinguishing device in the embodiment is designed with a battery switch socket. Even if the power supply switch of the control integrator is accidentally touched and the signal plug is detached from the socket, the battery switch socket does not supply power without plugging in the plug, and the forest fire extinguishing device does not work without an electrical signal; the existing forest fire extinguishing device starts to work after 2 program startups after being mounted, while the device in the embodiment needs to go through 3 program startups to work, with higher reliability.
[0036] Matters not described in this embodiment are conventional techniques in the art.
Claims
1. Non-pressurized forest fire extinguishing device, characterized in that It includes a housing. An unmanned aerial vehicle (UAV) hook release and a device hook are provided at the top of the housing. A control integrator is provided in the upper part of the housing. A control integrator power supply switch, a detection delay device, a signal line socket, and a battery switch socket are provided above the control integrator. The lower part of the control integrator is connected to a solid-gas converter; an extinguishing agent is disposed in the sealed cavity of the housing, and the solid-gas converter is buried in the extinguishing agent; the signal line socket is equipped with a signal line plug with a pull wire, and the battery switch socket is equipped with a battery switch plug.
2. The non-pressurized forest fire extinguishing device according to claim 1, characterized in that The control integrator is powered by a built-in battery, and the power supply is controlled by the battery switch plug, the battery switch socket, and the control integrator power supply switch.
3. The non-pressurized forest fire extinguishing device according to claim 1, characterized in that The activation of the detection delay device is controlled by the signal line socket and the signal line plug.
4. The non-pressurized forest fire extinguishing device according to claim 1, characterized in that The activation of the solid-gas converter is controlled by the detection delay device and the control integrator.
5. The non-pressurized forest fire extinguishing device according to claim 1 or 4, characterized in that The solid-gas converter includes a housing, an ignition device and a solid gas generating agent are disposed inside the housing, and a dense array of exhaust holes are provided on the housing.
6. The non-pressure-storage forest fire extinguishing device according to claim 5, characterized in that The aperture of the exhaust hole is 3.5 mm.
7. The non-pressure-stored forest fire extinguishing device according to claim 5, characterized in that The ignition device uses an electric starter, the reliable starting current ≥1.2 A, and the safe non-starting current ≤400 mA.
8. The non-pressurized forest fire extinguishing device according to claim 7, characterized in that The electric starter uses the commercially available RY3006 type.
9. The non-pressurized forest fire extinguishing device according to claim 5, characterized in that The mass percentage content of the components of the solid gas generating agent: strontium nitrate 60%, 5-AT 40%.
10. The fire extinguishing method of the non-pressurized forest fire extinguishing device according to claim 1, characterized in that, It includes the following processes: (1) Set the delay parameter of the detection delay device to 2 s or 3 s. Mount the forest fire extinguishing device on the UAV through the device hook and the UAV hook release. Insert the signal line plug with a pull wire into the signal line socket and fix the pull wire to the UAV frame. Then insert the battery switch plug into the battery switch socket, turn on the control integrator power supply switch, the control integrator starts, and the UAV takes off with the forest fire extinguishing device and reaches a predetermined height above the forest fire; (2) The UAV hook release unhooks, the forest fire extinguishing device falls under its own weight, the signal line plug is pulled out of the signal line socket by the pull wire and detached, the detection delay device starts to work and starts timing. During the fall of the forest fire extinguishing device until the detection delay device delays for 3 seconds, the control integrator supplies power to start the solid-gas converter. The solid-gas converter generates a large amount of gas and quickly releases it through the exhaust holes. The housing is pressure-stored and ruptured under the action of the gas, and the extinguishing agent is sprayed into the fire area under the action of the gas. The gas and the extinguishing agent act together to extinguish the fire.