CN110694207B - Airborne fire extinguishing bomb and fire extinguishing method - Google Patents
Airborne fire extinguishing bomb and fire extinguishing method Download PDFInfo
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- CN110694207B CN110694207B CN201911007253.0A CN201911007253A CN110694207B CN 110694207 B CN110694207 B CN 110694207B CN 201911007253 A CN201911007253 A CN 201911007253A CN 110694207 B CN110694207 B CN 110694207B
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005507 spraying Methods 0.000 claims abstract description 240
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 136
- 239000007921 spray Substances 0.000 claims abstract description 57
- 239000002360 explosive Substances 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 13
- 239000003814 drug Substances 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000012634 fragment Substances 0.000 abstract description 6
- 239000000843 powder Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 17
- 238000007789 sealing Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229940119073 medicated pad Drugs 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C19/00—Hand fire-extinguishers in which the extinguishing substance is expelled by an explosion; Exploding containers thrown into the fire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
- B64C39/024—Aircraft not otherwise provided for characterised by special use of the remote controlled vehicle type, i.e. RPV
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/02—Dropping, ejecting, or releasing articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to an airborne fire extinguishing bomb and a fire extinguishing method, belongs to the technical field of fire extinguishing bombs, and solves the problems of poor product safety, low control precision, high cost and high residual rate of fire extinguishing agents of the existing fire extinguishing bomb. The airborne fire extinguishing bomb comprises a power device, a spraying device and a control device, wherein the power device is used for pushing the fire extinguishing bomb to fly, the spraying device is used for spraying fire extinguishing agent, and the control device is used for controlling the ignition of the power device and controlling the spraying device to spray the fire extinguishing agent; the spraying device comprises a spraying shell, an inner container and a grain, wherein the inner container and the grain are arranged inside the spraying shell, and the inner container is used for filling a fire extinguishing agent; the spraying shell is provided with spraying holes for spraying the fire extinguishing agent, and the spraying holes form a spraying channel of the fire extinguishing agent; the high-temperature and high-pressure gas generated after the explosive column is ignited acts on the fire extinguishing agent, and the fire extinguishing agent can break through the inner container and is sprayed out through the spraying holes. The invention has no killing fragments in the fire extinguishing spraying process, has high product safety and obviously reduces the caking rate and the residual rate of the fire extinguishing agent.
Description
Technical Field
The invention relates to the technical field of fire extinguishing bombs, in particular to an airborne fire extinguishing bomb and a fire extinguishing method.
Background
Long-distance fire suppression under the complicated background, such as the cliff fire among super high-rise building fire, the forest fire etc. is the difficult problem in the fire rescue field always, utilizes the flexible, nimble characteristics of flying platform such as unmanned aerial vehicle or helicopter, closely is close to the fire, can realize the very first time through the mode of launching fire extinguishing bomb and carry out accurate suppression to the condition of a fire, reaches the purpose that the control condition of a fire spreads.
The existing fire extinguishing bomb products at home and abroad at present comprise the following: (1) an airborne fire-fighting fire extinguishing bomb detonates in the fire extinguishing bomb through a central explosive column and an annular explosive bag in the fire extinguishing bomb to release a fire extinguishing agent, the fire extinguishing agent is accompanied with fragments of a bomb body in the release process, the safety is poor, and secondary damage is easily caused to a fire scene, people around the fire scene, buildings and the like; (2) a fire extinguishing bomb based on an aerial throwing mode has poor safety by releasing a fire extinguishing agent in a bomb body through throwing powder explosion, poor control precision and higher cost by detonating the throwing powder through a fuse; (3) a high-efficient safe fire extinguishing bomb of no fragment formula, after inside explosive is lighted, all extinguishing agents are broken the evenly distributed aperture on the casing and are sprayed out under the high temperature high-pressure gas effect, this kind of fire extinguishing bomb has realized that extinguishing agent does not have the killer piece in the spraying process, but the explosive contacts with extinguishing agent, and the high temperature gas that produces in the combustion process makes extinguishing agent caking easily, leads to the surplus rate higher.
In summary, the existing fire extinguishing bomb products have the problems of poor safety, high cost, high agglomeration rate and high residual rate of the fire extinguishing agent, and an efficient fire extinguishing bomb with high safety, low cost, low agglomeration rate of the fire extinguishing agent and high residual rate is urgently needed to be provided.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide an airborne fire extinguishing bomb and a fire extinguishing method, which are used to solve the problems of poor safety, low control precision, high cost and high residual rate of fire extinguishing agent of the existing fire extinguishing bomb products.
The purpose of the invention is mainly realized by the following technical scheme:
on the one hand, provide an airborne fire extinguishing bomb, including power device, sprinkler and controlling means, power device is used for promoting the flight of fire extinguishing bomb, and sprinkler is used for spraying fire extinguishing agent, and controlling means is used for controlling power device's ignition and controlling sprinkler to spray fire extinguishing agent.
On the other hand, the fire extinguishing method based on the onboard fire extinguishing bomb comprises the following steps:
firstly, a control device is electrified and started, and whether an ignition time signal is received or not is monitored in real time;
secondly, when the control device monitors an ignition signal of the power device, the control device outputs an ignition current to the power device, and the power device ignites to push the fire extinguishing bomb to fly to a target position;
and thirdly, the fire extinguishing bomb flies to a target position, the control device outputs ignition current to the spraying device, and the spraying device sprays fire extinguishing agent.
Further, determining ignition time according to the distance between the fire extinguishing bomb and the target position and the running speed of the fire extinguishing bomb;
the ignition time comprises delayed spraying time delta t, and the delta t is 0.5-1.0 s.
Further, before step one, still include the loading step, carry the airborne fire extinguishing bomb on unmanned aerial vehicle, whether unmanned aerial vehicle automated inspection fire extinguishing bomb loads correctly.
Furthermore, the spraying device comprises a spraying shell, an inner container and a grain, wherein the inner container and the grain are arranged inside the spraying shell, and the inner container is used for filling a fire extinguishing agent; the spraying shell is provided with spraying holes for spraying the fire extinguishing agent, and the spraying holes form a spraying channel of the fire extinguishing agent; high-temperature and high-pressure gas generated after the explosive columns are ignited acts on the fire extinguishing agent, and the fire extinguishing agent can break through the inner container and is released to the outside of the fire extinguishing bomb from the spraying holes.
Furthermore, the spraying device also comprises a medicine support, a pressure ring and a switching section, wherein the medicine support is arranged at the tail part of the spraying shell and is compressed and fixed through the pressure ring, and the medicine column is arranged in the medicine support; the compression ring is sleeved at the tail part of the spraying shell and is in threaded connection with the tail part of the spraying shell; one end of the switching section is connected with the pressure ring, and the other end of the switching section is connected with the power device.
Further, the power device comprises an engine and a cabin body, wherein the engine is arranged inside the cabin body, and the cabin body is provided with wings.
Furthermore, one end of the switching section is connected with the pressure ring through a screw, and the other end of the switching section is in threaded connection with the cabin body.
Furthermore, the number of spraying holes is a plurality of, and evenly distributed on spraying the casing.
Further, the aperture of the spray holes is the same.
Furthermore, the aperture of the spraying hole is gradually reduced from the tail part to the head part of the spraying shell.
Further, the axis of the spraying channel close to the tail part of the spraying shell is inclined towards the tail part; a spray passage adjacent the head of the spray housing, the axis of which is inclined towards the head; the axis of the spraying channel in the middle of the spraying shell is vertical to the axis of the spraying shell.
Compared with the prior art, the invention has at least one of the following beneficial effects:
a) the airborne fire extinguishing bomb provided by the invention is simple in structure, the control device is used for controlling the power device to push the fire extinguishing bomb to fly to a target position, and can accurately control the spraying device to spray the fire extinguishing agent at the target fire point position to extinguish the fire, so that the spraying time of the fire extinguishing agent is accurately controlled, the control precision is higher, and the cost is low.
b) According to the fire extinguishing method provided by the invention, the airborne fire extinguishing bomb is carried on the unmanned aerial vehicle, the unmanned aerial vehicle sends the ignition time signal and the power supply signal of the fire extinguishing bomb to the control device of the fire extinguishing bomb, the control device controls the power device to push the fire extinguishing bomb to fly to the target position, the spraying device is accurately controlled to spray the fire extinguishing agent at the target fire point position, the control precision is higher, and the spraying process of the fire extinguishing agent is safe and efficient.
c) According to the fire extinguishing method provided by the invention, the fire extinguishing agent is contained in the liner by the airborne fire extinguishing bomb, and under the action of high-temperature and high-pressure gas, the fire extinguishing agent breaks through the liner and is released from the spraying holes of the spraying shell, so that no killing fragments are generated in the spraying process, and the safety of the fire extinguishing process is improved.
d) According to the fire extinguishing method provided by the invention, the airborne fire extinguishing bomb is adopted to arrange the explosive column at one side of the fire extinguishing agent, and the explosive column is separated from the fire extinguishing agent through the explosive support, so that the contact area of high-temperature gas and the fire extinguishing agent is greatly reduced, the defect that the fire extinguishing agent has high caking rate and residual rate due to the fact that the explosive column of the traditional fire extinguishing bomb is coated by the fire extinguishing agent is overcome, the safe and efficient spraying of the fire extinguishing agent is realized, and the fire extinguishing effect is improved.
e) The fire extinguishing method provided by the invention is characterized in that the spraying channel arranged on the spraying shell of the airborne fire extinguishing bomb is arranged in a divergent mode, namely the axis of the spraying channel close to the tail part of the spraying shell inclines towards the tail part; a spray passage adjacent the head of the spray housing, the axis of which is inclined towards the head; the axis that sprays the casing middle part and spray the passageway is perpendicular with the axis that sprays the casing, sprays the passageway so and sets up and can realize that the fire extinguishing agent is all-round to be sprayed, eliminates the blind area of putting out a fire, and the range of spraying of the perpendicular fire extinguishing bomb that sets up of passageway enlarges one time, has promoted fire control effect.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is an outline view of an airborne fire extinguishing bomb in an embodiment of the invention;
FIG. 2 is a diagram of the components of an onboard fire extinguishing bomb in an embodiment of the invention;
fig. 3 shows the working flow of the onboard fire extinguishing bomb in the embodiment of the invention.
Reference numerals:
1-a power plant; 11-an engine; 12-a cabin body; 13-a fin; 2-a spraying device; 21-spraying the shell; 22-inner container; 23-medicated pad; 24-grains; 25-a pressure ring; 26-a switching section; 27-a fire extinguishing agent; 3-control device.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Example one
The embodiment of the invention discloses a fire extinguishing method, in particular to an unmanned aerial vehicle carrying airborne fire extinguishing bomb for executing fire extinguishing task, wherein the structure of the adopted airborne fire extinguishing bomb is shown in figures 1 to 2, the working process of fire extinguishing is shown in figure 3, and the fire extinguishing method comprises the following steps:
in the first step, the control device 3 is powered on and started, and whether an ignition time signal is received or not is monitored in real time.
After the unmanned aerial vehicle discovers the ignition point target, an airborne control system of the unmanned aerial vehicle calculates the ignition time of the fire extinguishing bomb by combining the outer trajectory information of the fire extinguishing bomb according to the ignition point and the position information of the unmanned aerial vehicle platform, and sends the ignition time signal and the power supply signal of the fire extinguishing bomb to the control device 3 of the fire extinguishing bomb. And after receiving an external power supply signal, the control device 3 of the fire extinguishing bomb starts self-checking. If the self-checking fails, sending fault information to external equipment through a bus; and if the self-checking is passed, monitoring whether the ignition time signal exists in real time. When the ignition time signal is monitored, the ignition time is transmitted to the control device 3, and the control device 3 controls the action time of the spraying device 2 according to the ignition time.
And secondly, when the control device 3 monitors an ignition signal of the power device, the control device 3 outputs an ignition current to the power device 1, and the power device 1 ignites to push the fire extinguishing bomb to fly to a target position.
When the control device 3 of the fire extinguishing bomb monitors an ignition time signal and transmits the ignition time to the control device 3, the control device 3 monitors whether the ignition signal of the power device is input in real time, and when the ignition signal of the power device is input, the ignition current is output to the power device 1. After receiving the ignition current output from the control device 3, the power device 1 starts the engine 11 to propel the fire extinguishing bomb to fly toward the target ignition point position.
And thirdly, the fire extinguishing bomb flies to a target position, the control device 3 outputs ignition current to the spraying device 2, and the spraying device 2 sprays fire extinguishing agent.
In the flight process of the airborne fire extinguishing bomb, a power supply line and a bus between the control device 3 and external equipment are broken, when the control device 3 detects a power-off signal and the flight acceleration of the fire extinguishing bomb reaches a set value, timing is started, when the timing time of the control device 3 reaches the ignition time, the ignition current of the spraying device 2 is output, and the ignition head is ignited. The ignited ignition head ignites the explosive column 24, high-temperature and high-pressure gas is generated in the combustion process of the explosive column 24, the high-temperature and high-pressure gas breaks through the explosive support 23 and acts on the fire extinguishing agent, and the fire extinguishing agent breaks through the inner container 22 after being impacted by the high-temperature and high-pressure gas and is released to the outside of the fire extinguishing bomb from the spraying hole of the spraying shell 21. The powder column with traditional fire extinguishing bomb is different by the fire extinguishing agent cladding, the fire extinguishing bomb that this embodiment adopted, set up powder column 24 in one side of fire extinguishing agent, and separate powder column 24 and fire extinguishing agent through the powder support 23, the area of contact of high-temperature gas with the fire extinguishing agent that has significantly reduced, the caking rate and the surplus rate of fire extinguishing agent have effectively been reduced, make the surplus rate of fire extinguishing agent be not more than 5%, 1/10 ~ 1/20 that is current fire extinguishing bomb fire extinguishing agent surplus rate, the safe high efficiency of fire extinguishing agent sprays has been realized, fire extinguishing effect has been promoted.
In the first step, before launching, a spraying time parameter, namely ignition time, is determined according to the launching distance, the spraying time of the fire extinguishing agent is accurately controlled, the ignition time is mainly determined by the distance between the fire extinguishing bomb and a target position and the running speed of the fire extinguishing bomb, and the ignition time comprises the acceleration time and the stable flight time of the fire extinguishing bomb as the fire extinguishing bomb reaches the target position through two stages of acceleration and uniform speed. In order to ensure that the fire extinguishing bomb sprays at the target position, the ignition time further comprises delayed spraying time delta t, and the delta t is 0.5-1.0 s, namely, after the fire extinguishing bomb flies to the target position at a constant speed in an accelerated manner, the fire extinguishing agent is sprayed through the delayed spraying time delta t, so that the fire extinguishing agent spraying is accurately controlled, and the fire extinguishing effect is ensured.
Before step one, still include the loading step, carry the airborne fire extinguishing bomb on unmanned aerial vehicle, whether unmanned aerial vehicle can automated inspection fire extinguishing bomb load correctly. If the unmanned aerial vehicle passes the self-inspection, the unmanned aerial vehicle enters a ready-to-take-off state, and after a take-off signal is received, the unmanned aerial vehicle takes off to fly to a fire point or performs fire source inspection tour; if the fire extinguishing bomb does not pass the self-checking, the fire extinguishing bomb is refilled until the self-checking is passed, and then the takeoff state is started.
In this embodiment, the onboard fire extinguishing bomb adopts the inner container 22 filled with the fire extinguishing agent 27, and after the inner container 22 is filled with the fire extinguishing agent 27, the side wall of the inner container 22 can contact with the inner wall of the spraying shell 21. The spraying casing 21 is provided with spraying holes allowing the fire extinguishing agent 27 to be sprayed out, the spraying holes constitute spraying channels of the fire extinguishing agent 27, and the number of the spraying holes is multiple and is uniformly distributed on the spraying casing 21. After the explosive column 24 is ignited, high-temperature and high-pressure gas generated in the combustion process acts on the fire extinguishing agent 27, the fire extinguishing agent 27 is impacted by the high-temperature and high-pressure gas to break through the inner container 22 and is released to the outside of the fire extinguishing bomb from the spraying hole of the spraying shell 21, and as the fire extinguishing agent breaks through the inner container 22 and is released from the spraying hole of the spraying shell 21, no killing fragments exist in the spraying process, so that the safety of the fire extinguishing process is improved.
In this embodiment, the powder column 24 of airborne fire extinguishing bomb does not separate by powder support 23 with fire extinguishing agent 27 direct contact, has significantly reduced the area of contact of high-temperature gas with fire extinguishing agent at the spraying in-process, has effectively reduced the caking rate and the surplus rate of fire extinguishing agent, is 1/10 of current fire extinguishing bomb fire extinguishing agent caking rate, 1/10 ~ 1/20 of surplus rate, has realized the safe high-efficient spraying of fire extinguishing agent, has promoted fire control effect.
In this embodiment, a plurality of spraying holes that set up on the casing 21 are sprayed to the airborne fire extinguishing bomb, by spraying casing 21 afterbody to the head, the aperture in spraying hole diminishes gradually, and the aperture that is close to the spraying hole of explosive column 24 is big, and the aperture that is close to the spraying hole of spraying casing 21 head is little. Because the powder column 24 is lighted the back and produces high temperature high pressure gas, high temperature high pressure gas breaks the powder support 23, be used in fire extinguishing agent 27, the gas pressure who is close to powder support 23 is greater than the gas pressure who keeps away from powder support 23, therefore, by spraying the 21 afterbody of casing to the head, the aperture in spraying the hole diminishes gradually, the structure setting that the spraying hole aperture that is close to powder column 24 is big promptly, can make the quick even spraying of fire extinguishing agent that is close to powder support 23, realize the high efficiency and spray, can reduce the caking rate and the surplus rate of fire extinguishing agent.
In this embodiment, all the spraying channels arranged on the spraying shell 21 of the airborne fire extinguishing bomb are not perpendicular to the spraying shell 21, the axis of the spraying channel close to the tail part of the spraying shell 21 is inclined towards the tail part, and the included angle between the axis of the spraying channel at the tail part and the axis of the spraying shell 21 is 60-85 degrees; the axis of the spraying channel close to the head of the spraying shell 21 inclines towards the head, and the included angle between the axis of the spraying channel at the head and the axis of the spraying shell 21 is 30-85 degrees; the axis that sprays casing 21 middle part spray passage is perpendicular with the axis that sprays casing 21, and this structural setting can realize that the fire extinguishing agent is all-round to be sprayed, eliminates the blind area of putting out a fire, and the range of spraying of the perpendicular fire extinguishing bomb that sets up of spray passage enlarges one time, has promoted fire control effect.
In order to improve sprinkler 2's leakproofness, the junction of medicine support 23, clamping ring 25 carries out sealing treatment, scribbles sealing coating, and is concrete, and medicine support 23 and clamping ring 25 scribble sealed glue in the assembly face before the installation, and the junction can avoid the high temperature high pressure gas that the 24 burning of explosive column produced spraying casing 21 afterbody to let out through sealing treatment, guarantees that high temperature high pressure gas sprays to the front end that sprays casing 21 to spray the effect has been guaranteed.
In this embodiment, the power device 1 provides power for the flight of the fire extinguishing bomb and ensures the flight stability of the fire extinguishing bomb. As shown in fig. 2, the power plant 1 includes an engine 11 and a cabin 12, the engine 11 is disposed inside the cabin 12, the cabin 12 is provided with a plurality of fins 13, and the fins 13 are symmetrically disposed. The engine 11 is arranged in the cabin 12 and connected with the cabin 12 through screw threads, and the wing panels 13 are fixed on the cabin 12 through screws. The cabin body 12 is made of hard materials, the engine 11 can be protected by the cabin body 12, the installation interface which can be connected with the spraying device 2 is arranged on the cabin body 12, and the flight stability of the fire extinguishing bomb can be enhanced by the wing pieces 13 arranged on the cabin body 12.
In this embodiment, utilize engine 11 to provide power for the flight of fire extinguishing bomb, engine 11 obtains thrust through the high-speed gas of discharge high temperature, can show and reduce the recoil size, makes the fire extinguishing bomb in this embodiment have little recoil, has promoted unmanned aerial vehicle's flight stability greatly, can extensively be carried on unmanned aerial vehicle and put out a fire.
In this embodiment, the control device 3 is fixed on the adapter section 26 of the spraying device 2 by screws, and the connection line of the control device 3 extends out through the outlet hole of the adapter section 26. The control device 3 is used for controlling the spraying of the fire extinguishing bomb, the spraying time parameters are bound according to the emission distance before the fire extinguishing bomb is emitted, the spraying time of the fire extinguishing agent can be accurately controlled, the control precision is high, and the cost is low.
Compared with the prior art, the fire extinguishing method provided by the embodiment has the advantages that the airborne fire extinguishing bomb is carried on the unmanned aerial vehicle, the unmanned aerial vehicle sends the ignition time signal and the power supply signal of the fire extinguishing bomb to the control device 3 of the fire extinguishing bomb, the control device 3 controls the power device 1 to push the fire extinguishing bomb to fly to the target position, and the spraying device 2 is controlled to spray the fire extinguishing agent at the target ignition point position to extinguish the fire. Spray of the fire extinguishing bomb is controlled through the control device 3, the spray time parameters are bound according to the emission distance before the fire extinguishing bomb is emitted, the spray time of the fire extinguishing agent can be accurately controlled, the control precision is higher, and the cost is low. Unmanned aerial vehicle carries on machine carries out fire extinguishing bomb adopts inner bag 22 to hold fire extinguishing agent 27, and the high temperature high pressure gas that the back produced is lighted to explosive column 24 is used in the fire extinguishing agent, and the fire extinguishing agent breaks through inner bag 22 under the high temperature high pressure gas effect, and from the release of the spraying hole of spraying casing 21, the spraying in-process does not have the killer piece, has improved the security of product and putting out a fire. In addition, the fire extinguishing bomb is characterized in that the explosive column 24 of the fire extinguishing bomb is arranged on one side of the fire extinguishing agent instead of being coated by the fire extinguishing agent, so that the contact area of high-temperature gas and the fire extinguishing agent is effectively reduced, the caking rate of the fire extinguishing agent is effectively reduced, the residual rate of the fire extinguishing agent is not more than 5%, the residual rate of the fire extinguishing agent is 1/10-1/20% of the residual rate of the existing fire extinguishing bomb, the safe and efficient spraying of the fire extinguishing agent is realized, and the fire extinguishing effect is improved. In addition, the spraying channel arranged on the spraying shell 21 of the fire extinguishing bomb is arranged in a divergent mode, namely the axis of the spraying channel close to the tail part of the spraying shell 21 inclines towards the tail part; a spray channel adjacent the head of the spray housing 21, the axis of which is inclined towards the head; the axis that sprays casing 21 middle part spray passage is perpendicular with the axis that sprays casing 21, and the spray passage so sets up, can make fire extinguishing agent spray fire extinguishing agent to bigger space range in, eliminates the blind area of putting out a fire, has enlarged fire extinguishing agent spray range, is showing and has promoted fire control effect.
Example two
In another embodiment of the present invention, an airborne fire extinguishing bomb in the first embodiment is disclosed, and the unmanned aerial vehicle carries the airborne fire extinguishing bomb in this embodiment to perform a fire extinguishing task. As shown in fig. 1 to 2, the airborne fire extinguishing bomb comprises a power device 1, a spraying device 2 and a control device 3, wherein the power device 1 is connected with the spraying device 2 through threads, and the control device 3 is fixedly installed on the spraying device 2. Wherein, the power device 1 is used for pushing the fire extinguishing bomb to fly; the spraying device 2 is filled with fire extinguishing agent 27 and can spray the fire extinguishing agent 27; the control device 3 is used for controlling the ignition of the power unit 1 and for controlling the spraying device 2 to spray the extinguishing agent 27.
In this embodiment, sprinkler 2 is including spraying casing 21, inner bag 22 and powder column 24, and inner bag 22 sets up in the inside of spraying casing 21, and is concrete, and inner bag 22 and powder column 24 pass through screw fixed mounting in the inner wall of spraying casing 21, and inner bag 22's structural shape and the adaptation of spraying casing 21 looks, and inner bag 22 is used for filling fire extinguishing agent 27, and after inner bag 22 was full of fire extinguishing agent 27, inner bag 22's lateral wall can contact with the inner wall of spraying casing 21. The spraying casing 21 is provided with spraying holes allowing the fire extinguishing agent 27 to be sprayed out, the spraying holes constitute spraying channels of the fire extinguishing agent 27, the number of the spraying holes is multiple, and the spraying holes are uniformly distributed in the spraying casing 21. After the explosive column 24 is ignited, high-temperature and high-pressure gas generated in the combustion process acts on the fire extinguishing agent 27, the fire extinguishing agent 27 is impacted by the high-temperature and high-pressure gas to break the inner container 22 and is released to the outside of the fire extinguishing bomb from the spraying hole of the spraying shell 21, and no killing fragments are generated in the spraying process because the fire extinguishing agent breaks the inner container 22 and is released from the spraying hole of the spraying shell 21, so that the safety of the product is improved.
In this embodiment, the spraying device 2 further comprises a cartridge 23, a cartridge 24, a pressing ring 25 and a switching section 26, the main components of the cartridge 24 are an oxidant and a combustible agent, the cartridge 23 is arranged at the tail of the spraying shell 21 and connected with the spraying shell 21 through a screw, and the cartridge 24 is filled in the cartridge 23 and is pressed and fixed through the pressing ring 25; the compression ring 25 is sleeved at the tail of the spraying shell 21 and is in threaded connection with the tail of the spraying shell 21, one end of the switching section 26 is connected with the compression ring 25 through a screw, and the other end of the switching section is in threaded connection with the cabin body 12 of the power device 1. Inner bag 22's rear opening, fire extinguishing agent 27 fills in inner bag 22, medicine support 23 can be sealed with inner bag 22's open end, medicine post 24 not with 27 direct contact of fire extinguishing agent, separate by medicine support 23, the area of contact of high-temperature gas with the fire extinguishing agent that has significantly reduced at the spraying in-process, effectively reduced the caking rate and the surplus rate of fire extinguishing agent, 1/10 of current fire extinguishing bomb fire extinguishing agent caking rate, 1/10 ~ 1/20 of surplus rate, the safe high efficiency of fire extinguishing agent is sprayed has been realized, fire extinguishing effect has been promoted.
In this embodiment, the apertures of the spraying holes formed in the spraying casing 21 are the same, or the spraying holes gradually decrease from the tail to the head of the spraying casing 21, the apertures of the spraying holes close to the explosive columns 24 are large, and the apertures of the spraying holes close to the head of the spraying casing 21 are small. Because the powder column 24 is lighted the back and produces high temperature high pressure gas, high temperature high pressure gas breaks the powder support 23, be used in fire extinguishing agent 27, the gas pressure who is close to powder support 23 is greater than the gas pressure who keeps away from powder support 23, therefore, by spraying the 21 afterbody of casing to the head, the aperture in spraying the hole diminishes gradually, the structure setting that the spraying hole aperture that is close to powder column 24 is big promptly, can make the quick even spraying of fire extinguishing agent that is close to powder support 23, realize the high efficiency and spray, can reduce the caking rate and the surplus rate of fire extinguishing agent.
In the embodiment, the diameter of the spraying hole is 1/100-1/80 of the length of the spraying shell 21, the parameter design can ensure that the fire extinguishing agent is smoothly sprayed out through the spraying hole, the spraying shell 21 is not broken due to overlarge pressure of high-temperature gas, and the fire extinguishing agent is far sprayed due to the parameter setting of the spraying hole, so that the fire extinguishing range is greatly enlarged.
In order to improve the spraying and fire extinguishing range of the fire extinguishing bomb, the axis of the spraying channel close to the tail part of the spraying shell 21 is inclined towards the tail part, and the included angle between the axis of the spraying channel at the tail part and the axis of the spraying shell 21 is 60-85 degrees; the axis of the spraying channel close to the head of the spraying shell 21 inclines towards the head, and the included angle between the axis of the spraying channel at the head and the axis of the spraying shell 21 is 30-85 degrees; the axis that sprays casing 21 middle part spray passage is perpendicular with the axis that sprays casing 21, and this structural setting can realize that the fire extinguishing agent is all-round to be sprayed, eliminates the blind area of putting out a fire, and the range of spraying of the perpendicular fire extinguishing bomb that sets up of spray passage enlarges one time, has promoted fire control effect.
In order to improve sprinkler 2's leakproofness, the junction of medicine support 23, clamping ring 25 carries out sealing treatment, scribbles sealing coating, and is concrete, and medicine support 23 and clamping ring 25 scribble sealed glue in the assembly face before the installation, and the junction can avoid the high temperature high pressure gas that the 24 burning of explosive column produced spraying casing 21 afterbody to let out through sealing treatment, guarantees that high temperature high pressure gas sprays to the front end that sprays casing 21 to spray the effect has been guaranteed.
In this embodiment, the power device 1 provides power for the flight of the fire extinguishing bomb and ensures the flight stability of the fire extinguishing bomb. As shown in fig. 2, the power plant 1 includes an engine 11 and a cabin 12, the engine 11 is disposed inside the cabin 12, the cabin 12 is provided with a plurality of fins 13, and the fins 13 are symmetrically disposed. The engine 11 is arranged in the cabin 12 and connected with the cabin 12 through screw threads, and the wing panels 13 are fixed on the cabin 12 through screws. The cabin body 12 is made of hard materials, the engine 11 can be protected by the cabin body 12, the installation interface which can be connected with the spraying device 2 is arranged on the cabin body 12, and the flight stability of the fire extinguishing bomb can be enhanced by the wing pieces 13 arranged on the cabin body 12.
In this embodiment, utilize engine 11 to provide power for the flight of fire extinguishing bomb, engine 11 obtains thrust through the high-speed gas of discharge high temperature, can show and reduce the recoil size, makes the fire extinguishing bomb in this embodiment have little recoil, has promoted unmanned aerial vehicle's flight stability greatly, can extensively be carried on unmanned aerial vehicle and put out a fire.
In this embodiment, the control device 3 is fixed on the adapter section 26 of the spraying device 2 by screws, and the connection line of the control device 3 extends out through the outlet hole of the adapter section 26. The control device 3 is used for controlling the spraying of the fire extinguishing bomb, the spraying time parameters are bound according to the emission distance before the fire extinguishing bomb is emitted, the spraying time of the fire extinguishing agent can be accurately controlled, the control precision is high, and the cost is low. It should be noted that the control device 3 itself is not the invention point of the present invention, and the functions and functions of the control device 3 in this embodiment can be realized by using the existing control system, which is not described herein again.
When unmanned aerial vehicle carried the fire extinguishing bomb in this embodiment and carried the task of putting out a fire, after unmanned aerial vehicle found the ignition point target, unmanned aerial vehicle's airborne controlling means combined the outer trajectory information of fire extinguishing bomb according to the position information of ignition point and unmanned aerial vehicle platform, calculated the ignition time of fire extinguishing bomb to send the ignition time signal and the power supply signal of fire extinguishing bomb to the controlling means 3 of fire extinguishing bomb. When the control device 3 monitors an ignition time signal, the control device 3 outputs an ignition current to the power device 1, the power device 1 ignites to push the fire extinguishing bomb to fly to a target position, when the fire extinguishing bomb flies to the target position, the control device 3 outputs the ignition current to the spraying device 2, the ignition current acts on an ignition head, the ignition head ignites a explosive column 24, after the explosive column 24 is ignited, high-temperature and high-pressure gas generated in the combustion process acts on the fire extinguishing agent 27, and after the fire extinguishing agent 27 is impacted by the high-temperature and high-pressure gas, the inner container 22 is broken through, the high-temperature and high-pressure gas is released to the outside of the fire extinguishing bomb from a spraying hole of the spraying shell 21, and the ignition point is.
Compared with the prior art, the airborne fire extinguishing bomb that this embodiment provided adopts inner bag 22 to hold fire extinguishing agent 27, and the high temperature high pressure gas that the powder column 24 produced after being lighted is used in the fire extinguishing agent, and the fire extinguishing agent breaks through inner bag 22 under the high temperature high pressure gas effect, releases from the spraying hole that sprays casing 21, does not have the killer piece among the spraying process, has improved the security of product. The control device 3 is used for controlling the spraying of the fire extinguishing bomb, the spraying time parameters are bound according to the emission distance before the fire extinguishing bomb is emitted, the spraying time of the fire extinguishing agent is accurately controlled, the control precision is high, and the cost is low. In addition, the explosive column 24 is arranged on one side of the fire extinguishing agent instead of being coated by the fire extinguishing agent, the contact area of high-temperature gas and the fire extinguishing agent is effectively reduced, the defect that the fire extinguishing agent has high caking rate and residual rate due to the fact that the explosive column of the traditional fire extinguishing bomb is coated by the fire extinguishing agent is overcome, the fire extinguishing bomb provided by the embodiment has the advantages that the caking rate of the fire extinguishing agent is less than 1%, the residual rate is less than 5%, 1/10 of the caking rate and 1/10-1/20 of the residual rate of the fire extinguishing agent of the existing fire extinguishing bomb are achieved, the safe and efficient spraying of the fire extinguishing agent is achieved, the fire extinguishing effect is improved, and the safe and efficient spraying of the fire extinguishing. In addition, the spraying channel arranged on the spraying shell 21 is arranged in a divergent mode, namely the axis of the spraying channel close to the tail part of the spraying shell 21 inclines towards the tail part; a spray channel adjacent the head of the spray housing 21, the axis of which is inclined towards the head; the axis that sprays casing 21 middle part spray passage is perpendicular with the axis that sprays casing 21, and spray passage so sets up and can realize that the fire extinguishing agent is all-round to be sprayed, eliminates the blind area of putting out a fire, and the range of spraying of the perpendicular fire extinguishing bomb that sets up of spray passage enlarges one time, has promoted fire control effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (5)
1. A fire extinguishing method, characterized in that the fire is extinguished by an onboard fire extinguishing bomb, which comprises a power device (1), a spraying device (2) and a control device (3), wherein the power device (1) is used for propelling the fire extinguishing bomb to fly, the spraying device (2) is used for spraying a fire extinguishing agent (27), and the control device (3) is used for controlling the ignition of the power device (1) and controlling the spraying device (2) to spray the fire extinguishing agent (27);
the spraying device (2) comprises a spraying shell (21), an inner container (22) and a grain (24), the inner container (22) and the grain (24) are arranged inside the spraying shell (21), and the inner container (22) is used for filling a fire extinguishing agent (27);
the spraying shell (21) is provided with spraying holes for spraying the fire extinguishing agent (27), and the spraying holes form a spraying channel of the fire extinguishing agent (27);
high-temperature and high-pressure gas generated after the explosive column (24) is ignited acts on the fire extinguishing agent, and the fire extinguishing agent (27) can break through the inner container (22) and is released to the outside of the fire extinguishing bomb from the spraying holes;
the spraying device (2) further comprises a medicine support (23), a pressing ring (25) and a switching section (26), the medicine support (23) is arranged at the tail of the spraying shell (21) and is pressed and fixed through the pressing ring (25), and the medicine columns (24) are arranged in the medicine support (23);
the compression ring (25) is sleeved at the tail of the spraying shell (21) and is in threaded connection with the tail of the spraying shell (21);
one end of the switching section (26) is connected with the pressure ring (25), and the other end of the switching section is connected with the power device (1);
one end of the switching section (26) is connected with the pressing ring (25) through a screw, and the other end of the switching section is in threaded connection with the cabin body (12);
the spraying shell (21) of the airborne fire extinguishing bomb is provided with a plurality of spraying holes, the diameter of each spraying hole gradually decreases from the tail part to the head part of the spraying shell (21), the diameter of each spraying hole close to the explosive column (24) is large, and the diameter of each spraying hole close to the head part of the spraying shell (21) is small;
the spraying channels arranged on the spraying shell (21) of the airborne fire extinguishing bomb are not all perpendicular to the spraying shell (21), the axis of the spraying channel close to the tail part of the spraying shell (21) is inclined towards the tail part, and the included angle between the axis of the tail spraying channel and the axis of the spraying shell (21) is 60-85 degrees; the axis of the spraying channel close to the head of the spraying shell (21) is inclined towards the head, and the included angle between the axis of the spraying channel at the head and the axis of the spraying shell (21) is 30-85 degrees; the axis of the spraying channel in the middle of the spraying shell (21) is vertical to the axis of the spraying shell (21);
the fire extinguishing method comprises the following steps:
firstly, a control device (3) is electrified and started, and whether an ignition time signal is received or not is monitored in real time;
after the unmanned aerial vehicle finds the ignition point target, an onboard control system of the unmanned aerial vehicle calculates the ignition time of the fire extinguishing bomb according to the ignition point and the position information of the unmanned aerial vehicle platform and by combining the outer trajectory information of the fire extinguishing bomb, and sends an ignition time signal and a power supply signal of the fire extinguishing bomb to a control device (3) of the fire extinguishing bomb; after receiving an external power supply signal, a control device (3) of the fire extinguishing bomb starts self-checking; if the self-checking fails, sending fault information to external equipment through a bus; if the self-checking is passed, monitoring whether an ignition time signal exists in real time; when an ignition time signal is monitored, transmitting the ignition time to the control device (3), and controlling the action time of the spraying device (2) by the control device (3) according to the ignition time;
secondly, when the control device (3) monitors an ignition time signal, the control device (3) outputs an ignition current to the power device (1), and the power device (1) ignites to push the fire extinguishing bomb to fly to a target position;
when the control device (3) of the fire extinguishing bomb monitors an ignition time signal and transmits the ignition time to the control device (3), the control device (3) monitors whether the ignition signal of the power device is input in real time, and when the ignition signal of the power device is input, the control device outputs ignition current to the power device (1); after receiving the ignition current output by the control device (3), the power device (1) starts an engine (11) to push the fire extinguishing bomb to fly to the target ignition point position;
thirdly, the fire extinguishing bomb flies to a target position, the control device (3) outputs ignition current to the spraying device (2), and the spraying device (2) sprays fire extinguishing agent;
in the flight process of the airborne fire extinguishing bomb, a power supply line and a bus between the control device (3) and external equipment are broken, when the control device (3) detects a power-off signal and the flight acceleration of the fire extinguishing bomb reaches a set value, timing is started, and when the timing time of the control device (3) reaches ignition time, ignition current of the spraying device (2) is output to ignite an ignition head; the ignited ignition head ignites the explosive column (24), high-temperature and high-pressure gas is generated in the combustion process of the explosive column (24), the high-temperature and high-pressure gas breaks through the explosive support (23) and acts on the fire extinguishing agent, and the fire extinguishing agent breaks through the inner container (22) after being impacted by the high-temperature and high-pressure gas and is released to the outside of the fire extinguishing bomb from the spraying hole of the spraying shell (21).
2. The fire extinguishing method according to claim 1, wherein in the first step, the ignition time is determined according to the distance between the fire extinguishing bomb and the target position and the running speed of the fire extinguishing bomb;
the ignition time comprises delayed spraying time delta t, and delta t is 0.5-1.0 s.
3. The fire extinguishing method according to claim 1, further comprising a loading step of loading the onboard fire extinguishing bomb on the unmanned aerial vehicle before the first step, wherein the unmanned aerial vehicle automatically detects whether the fire extinguishing bomb is correctly loaded.
4. Fire extinguishing method according to claim 1, characterized in that the power unit (1) comprises an engine (11) and a cabin (12), the engine (11) being arranged inside the cabin (12), the cabin (12) being provided with fins (13).
5. Fire extinguishing method according to claim 1, characterized in that the number of spraying apertures is multiple and evenly distributed over the spraying shell (21).
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| CN112810815B (en) * | 2020-12-30 | 2023-05-02 | 湖北航天飞行器研究所 | Low-cost suicide type fire extinguishing method and unmanned aerial vehicle |
| CN115634405B (en) * | 2022-11-04 | 2023-06-06 | 安阳猎鹰消防科技有限公司 | Fire extinguishing bomb and working method thereof |
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| CN207466973U (en) * | 2017-11-22 | 2018-06-08 | 河南三和航空工业有限公司 | A kind of airborne fire extinguisher bomb of combined guidance |
| CN108295403A (en) * | 2017-12-07 | 2018-07-20 | 青岛理工大学 | Fragment-free efficient safe fire extinguishing bomb |
| CN207980222U (en) * | 2018-01-22 | 2018-10-19 | 刘绍溥 | A kind of rotary fire extinguisher bomb |
| CN109833582A (en) * | 2019-03-20 | 2019-06-04 | 北京星际荣耀空间科技有限公司 | A kind of fire extinguisher bomb and fire extinguisher bomb system |
| CN110237462B (en) * | 2019-06-10 | 2022-02-08 | 西北工业大学 | Hard shell type fire extinguishing bomb adopting flexible inner container |
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