CN112891779B - Aviation fire extinguishing auxiliary device and aviation fire extinguishing method - Google Patents
Aviation fire extinguishing auxiliary device and aviation fire extinguishing method Download PDFInfo
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- CN112891779B CN112891779B CN202110146419.8A CN202110146419A CN112891779B CN 112891779 B CN112891779 B CN 112891779B CN 202110146419 A CN202110146419 A CN 202110146419A CN 112891779 B CN112891779 B CN 112891779B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 238000009434 installation Methods 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims 2
- 239000000126 substance Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000002955 isolation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
- A62C3/0228—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft
- A62C3/0242—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft by spraying extinguishants from the aircraft
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
-
- 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
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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
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses an aviation fire-extinguishing auxiliary device and an aviation fire-extinguishing method, and belongs to the technical field of aviation fire extinguishment. An aviation fire extinguishing auxiliary device and an aviation fire extinguishing method comprise an installation box, a control box, a camera, a motor, a support frame, a liquid storage box, a water pump and an electric telescopic rod, wherein the control box is connected to the top of the installation box; the water pump and the electric telescopic rod are connected in the installation box, the water pump is connected with a first guide pipe, the electric telescopic rod is connected with a lifting plate, the first guide pipe is connected with the lifting plate, the liquid storage box is connected to the bottom of the support frame, the water pump is connected with the liquid storage box through a second guide pipe, the bottom of the liquid storage box is connected with a ship-shaped box in a sliding mode, and the bottom of the liquid storage box is provided with a drain hole; the invention not only protects the safety of workers, but also enables the fire extinguishing substances to reach the ground more quickly to form the effects of isolation and fire extinguishing, and has high flexibility.
Description
Technical Field
The invention relates to the technical field of aviation extinguishment, in particular to an aviation extinguishment auxiliary device and an aviation extinguishment method.
Background
The fire spread in a large range is usually difficult to control, which causes serious harm to the property and life safety of people, especially forest fire, can quickly spread in grasslands and forests by the action of wind to form a huge fire scene, and the fire scene is often in remote areas and is dangerous in terrain, so that the fire control and extinguishing are very difficult; at present there are many kinds of ways to control and prevent spreading of fire, including traditional ground fire fighters and equipment, also including using the aircraft to directly spray fire extinguishing substances from the air, adopt the aircraft technique of directly spraying fire extinguishing substances from the air of aircraft, can directly put out the conflagration or form one section median, have fine effect, especially to the topography that ground fire extinguishing strength is difficult to reach, or remote scene of fire, the advantage of aviation fire extinguishing is more obvious, however because the form of fire is various, the topography in addition, the influence of wind makes the scene of fire's condition very complicated, guarantee that the safety of flight and effective input of fire extinguishing substances are more difficult, usually need the pilot to possess super technique and abundant experience, otherwise can cause the fire control effect not good, even the machine destroys the human death.
Most of the existing aviation fire extinguishing auxiliary devices are used for enabling a pilot to pilot a plane to carry fire extinguishing substances to go to a fire source for throwing, but due to the fact that the scene situation of the fire source is variable, the aerial heat radiation temperature above the fire source of a natural fire can reach more than one thousand ℃, misjudgment of the pilot is easily caused, serious threat is caused to the personal safety of the pilot, the throwing height cannot be reduced due to high-temperature roasting, the fire extinguishing substances are easily evaporated by high temperature before reaching the ground, the fire extinguishing effect is poor, and when the fire extinguishing substances are taken, the influence of weather is large, and the water taking is slow; therefore, an aviation fire extinguishing auxiliary device and an aviation fire extinguishing method which can effectively reduce casualties and have excellent fire extinguishing effect are needed.
Disclosure of Invention
The invention aims to overcome the defects of poor safety and poor fire extinguishing effect in aviation fire extinguishing in the prior art, and provides an aviation fire extinguishing auxiliary device and an aviation fire extinguishing method.
In order to achieve the purpose, the invention adopts the following technical scheme:
an aviation fire-extinguishing auxiliary device and an aviation fire-extinguishing method comprise an installation box, a control box, a camera, a motor, a support frame, a liquid storage box, a water pump and an electric telescopic rod, wherein the control box is connected to the top of the installation box;
the improved water storage tank is characterized in that the water pump and the electric telescopic rod are fixedly connected in the installation box, the input end of the water pump is connected with a first guide pipe, the output end of the electric telescopic rod is connected with a lifting plate, the first guide pipe is connected with the lifting plate, the liquid storage tank is connected to the bottom of the support frame, a second guide pipe is arranged in the support frame, the water pump is connected with the liquid storage tank through the second guide pipe, the bottom of the liquid storage tank is slidably connected with a ship-shaped tank, and the bottom of the liquid storage tank is provided with a drain hole.
Preferably, the bottom of the liquid storage tank is connected with an electric cylinder body, the top of the ship-shaped tank is connected with an electric cylinder sliding block, and the electric cylinder sliding block is connected to the electric cylinder body in a sliding mode.
Preferably, the liquid storage tank bottom has been seted up the spout, be connected with the slide rail on the ship shape case, just the slide rail is integrated into one piece with the ship shape case, slide rail sliding connection is in the spout.
Preferably, a through groove is formed in the bottom of the installation box, and the first guide pipe penetrates through the through groove and extends to the bottom.
Preferably, the first conduit is embodied as a telescopic hose.
Preferably, the top of the liquid storage tank is provided with an overflow hole.
Preferably, the number of the liquid storage tanks is four.
An aviation fire extinguishing method comprises the following operation steps:
s1: when a worker detects a fire, the motor is started through the control box, so that the device body is lifted to go to the nearby lake surface to take water, and the fire is assisted by ground firemen to extinguish the fire;
s2: the camera is used for observing the water ripple fluctuation amount of the lake surface to be fetched, when the lake surface is relatively flat, the lake surface can directly land on the water surface to fetch water at the highest speed, when the lake surface lands on the lake surface, the ship-shaped box is of a hollow structure, and the four ship-shaped boxes arranged diagonally can ensure that the liquid storage box is provided with enough buoyancy to float on the water surface no matter whether the interior of the liquid storage box is water or not;
s3: when the water waves on the lake surface are large, the device body can be suspended above the water surface to take water, and the electric telescopic rod is controlled to adjust the telescopic quantity of the first guide pipe so as to ensure that the first guide pipe can still touch the water surface to take water in the suspension process;
s4: after the device body is ready under the two conditions of S2 and S3, starting a water pump to pump lake water;
s5: the extracted lake water is distributed into four liquid storage tanks through four second guide pipes, and after the liquid storage tanks are filled with water, the turbine blades are driven by the motor to rotate at a high speed, so that the device body takes off to a position above a fire source;
s6: when the fire source is over, the electric cylinder body is started to slide the four ship-shaped boxes to the position of the installation box, so that the drain holes are opened to directly drain water in the liquid storage box, and the fire source is extinguished;
s7: after the fire extinguishing is finished, the control box control device body returns to the ground.
Preferably, the control box in S1 adopts a NAZA-MV2 control system.
Preferably, the suspension in S3 is maintained at a height of 500 to 800 mm.
Compared with the prior art, the invention provides an aviation fire extinguishing auxiliary device and an aviation fire extinguishing method, which have the following beneficial effects:
1. the aviation fire-extinguishing auxiliary device and the aviation fire-extinguishing method are characterized in that motors positioned at four corners of a support frame are controlled to be started through a control box, a turbine blade rotates at high speed to drive the support frame to ascend and go to the nearby lake surface to take water and extinguish fire, when the weather is calm, a ship-shaped tank can be directly placed on the water surface, the ship-shaped tank is hollow and used for providing buoyancy, the designed buoyancy can ensure that four groups of liquid storage tanks can still float on the water surface after being filled with water, a water pump is started after a device body is stopped stably, the lake water is extracted through a first guide pipe, then the water is distributed into the liquid storage tanks through four shunting second guide pipes, and in order to prevent the liquid storage tanks from being overfilled, excessive water can be discharged through overflow holes in the tops of the liquid storage tanks, so that the four groups of liquid storage tanks can be fully filled with water; when the weather is abominable, lake surface water wave is too big when not being convenient for shut down, can the controlling means body suspend on the surface of water, here, the height of suspension can keep 500 to 800 millimeters within ranges, effectively promote the flexibility of device body, in the in-process of hovering, in order to guarantee that first pipe still can extract the lake water, can start electric telescopic handle, utilize to connect and drive first pipe downwardly extending at the lifter plate and draw water, its process of drawing water is the same with calm lake surface, do not do the repeated description here, after the liquid reserve tank is filled up, the controlling means body is gone to the fire source point, cooperate ground personnel to put out a fire to the high temperature point, specifically do, utilize the camera to observe the fire source condition, the controlling means body descends to effectively and puts in the height, here, all materials of device body all use the preparation of high temperature refractory material, control electric cylinder body action afterwards, make the electric cylinder slider drive ship shape case removal, thereby open the wash port of liquid reserve tank bottom with the drainage water drainage, put out fire or set up the isolation to the high temperature point, control fire situation spreads, not only avoid the driver to reach the high fire situation of fire extinguishing a fire, can also promote the quality, and prevent water evaporation in a high place more nimble.
2. This aviation auxiliary device and aviation method of putting out a fire, through the equal fixed connection of water pump and electric telescopic handle in the install bin, the input of water pump is connected with first pipe, electric telescopic handle's output is connected with the lifter plate, first pipe links to each other with the lifter plate, utilize lifter plate and first pipe to cooperate, can satisfy the device body no matter be the big homoenergetic fast water intaking of flat still water face or surface of water wave when the water intaking, greatly increased the flexibility when the water intaking, promote fire extinguishing efficiency.
Drawings
FIG. 1 is a first schematic structural diagram of an aviation fire extinguishing auxiliary device and an aviation fire extinguishing method provided by the invention;
FIG. 2 is a schematic structural diagram II of an auxiliary fire extinguishing apparatus and an auxiliary fire extinguishing method for aviation in accordance with the present invention;
FIG. 3 is a third schematic structural diagram of an aviation fire-extinguishing auxiliary device and an aviation fire-extinguishing method provided by the invention;
fig. 4 is a fourth schematic structural diagram of an aviation fire extinguishing auxiliary device and an aviation fire extinguishing method provided by the invention.
In the figure: 1. installing a box; 101. a support frame; 1011. a through groove; 1012. a second conduit; 102. a control box; 1021. a camera; 103. a liquid storage tank; 1031. an overflow aperture; 1032. a drain hole; 1033. a chute; 104. a boat-shaped case; 1041. a slide rail; 2. a motor; 201. a turbine blade; 3. an electric cylinder body; 301. an electric cylinder slider; 4. a water pump; 401. a first conduit; 5. an electric telescopic rod; 501. a lifting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-4, an aviation fire extinguishing auxiliary device and an aviation fire extinguishing method comprise an installation box 1, a control box 102, a camera 1021, a motor 2, a support frame 101, a liquid storage box 103, a water pump 4 and an electric telescopic rod 5, wherein the control box 102 is connected to the top of the installation box 1, the camera 1021 is connected to the side wall of the control box 102, the support frame 101 is connected to the outer wall of the installation box 1, the support frame 101 and the installation box 1 are integrally formed, the motor 2 is connected to the top of the support frame 101, and the output end of the motor 2 is connected with a turbine blade 201;
equal fixed connection of water pump 4 and electric telescopic handle 5 is in install bin 1, the input of water pump 4 is connected with first pipe 401, the output of electric telescopic handle 5 is connected with lifter plate 501, first pipe 401 links to each other with lifter plate 501, the bottom at support frame 101 is connected to liquid reserve tank 103, second pipe 1012 has been seted up in the support frame 101, water pump 4 links to each other with liquid reserve tank 103 through second pipe 1012, sliding connection has ship shape case 104 bottom liquid reserve tank 103, wash port 1032 has been seted up to liquid reserve tank 103 bottom.
The bottom of the liquid storage box 103 is connected with an electric cylinder body 3, the top of the ship-shaped box 104 is connected with an electric cylinder sliding block 301, and the electric cylinder sliding block 301 is connected to the electric cylinder body 3 in a sliding mode.
The bottom of the liquid storage box 103 is provided with a chute 1033, the boat-shaped box 104 is connected with a slide rail 1041, the slide rail 1041 and the boat-shaped box 104 are integrally formed, and the slide rail 1041 is slidably connected in the chute 1033.
A through slot 1011 is opened at the bottom of the installation box 1, and the first conduit 401 extends to the bottom through the through slot 1011.
The first conduit 401 is embodied as a telescopic hose.
The top of the liquid storage tank 103 is provided with an overflow hole 1031.
The number of the liquid storage tanks 103 is specifically four.
An aviation fire extinguishing method comprises the following operation steps:
s1: when a worker detects a fire, the motor 2 is started through the control box 102, so that the device body is lifted to go to the nearby lake surface to take water, and the fire is assisted by ground firemen to extinguish the fire;
s2: the camera 1021 is used for observing the ripple fluctuation amount of the lake surface to be fetched, when the lake surface is relatively flat, the lake surface can directly land on the water surface to fetch water at the highest speed, when the lake surface lands on the lake surface, the ship-shaped box 104 is of a hollow structure, and the four ship-shaped boxes 104 arranged diagonally can ensure that the liquid storage box 103 is provided with enough buoyancy to float on the water surface no matter whether the interior of the liquid storage box is water or not;
s3: when the lake surface has large water waves, the device body can be suspended above the water surface to take water, and the telescopic amount of the first conduit 401 is adjusted by controlling the electric telescopic rod 5, so that the first conduit 401 can still touch the water surface to take water in the suspension process;
s4: after the device body is ready under the two conditions of S2 and S3, starting a water pump 4 to pump lake water;
s5: the pumped lake water is distributed into the four liquid storage tanks 103 through the four second conduits 1012, and after the liquid storage tanks 103 are filled with water, the turbine blades 201 are driven by the motor 2 to rotate at high speed, so that the device body takes off above a fire source;
s6: when the fire source is reached, the electric cylinder body 3 is started to slide the four boat-shaped boxes 104 to the position of the installation box 1, so that the water drain hole 1032 is opened to directly drain the water in the liquid storage box 103, and the fire source is extinguished;
s7: after the fire extinguishing is finished, the control box 102 controls the device body to return to the ground.
In S1, the control box 102 adopts a NAZA-MV2 control system.
The suspension in S3 is maintained at a height of 500 to 800 mm.
The working principle is as follows: in the invention, when a fire occurs, the motors 2 positioned at four corners of the support frame 101 are controlled to be started through the control box 102, the support frame 101 is driven to ascend by virtue of high-speed rotation of the turbine blade 201, the support frame 101 goes to the nearby lake surface to take water and extinguish fire, when the lake surface is reached and the weather is calm, the boat-shaped tank 104 can be directly placed above the water surface, the boat-shaped tank 104 is arranged in a hollow manner and is used for providing buoyancy, the designed buoyancy can ensure that the four groups of liquid storage tanks 103 can still float on the water surface after being filled with water, after the device body is stopped stably, the water pump 4 is started, the lake water is pumped by utilizing the first conduit 401, then the water is distributed into the liquid storage tanks 103 through the four shunting second conduits 1012, and the excess water can be discharged through the overflow holes 1031 at the tops of the liquid storage tanks 103 in order to prevent the liquid storage tanks 103 from being overfilled, so as to ensure that the four groups of liquid storage tanks 103 can be filled with water; when the weather is abominable, lake surface water wave is too big when being not convenient for shut down, can the controlling means body suspend on the surface of water, here, the height of suspension can keep 500 to 800 millimeters within ranges, effectively promote the flexibility of the device body, in the in-process of hovering, in order to guarantee that first pipe 401 still can extract the lake water, can start electric telescopic handle 5, utilize and connect and drive first pipe 401 and extend downwards at lifter plate 501 and draw water, its process of drawing water is the same with quiet lake surface, do not do the repeated description here, after liquid reserve tank 103 is full, the controlling means body is gone to the fire source point, cooperate ground personnel to put out a fire to the high temperature point, specifically, utilize the camera to observe the fire source condition, the controlling means body descends to effective input height, here, all materials of device body all use high temperature refractory material preparation, control electric cylinder body 3 action afterwards, make electric cylinder slider 301 drive ship shape case 104 and remove, thereby open drain hole 1032 at the bottom of liquid reserve tank 103 and discharge water, put out a fire or set up isolation hosepipe, control the fire spreading, not only avoid the fire spreading to the high temperature situation, and can also prevent water evaporation quality in a flexible way, and it is convenient to take water taking.
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 person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. An aviation fire extinguishing auxiliary device comprises an installation box, a control box, a camera, a motor, a support frame, a liquid storage box, a water pump and an electric telescopic rod, and is characterized in that the control box is connected to the top of the installation box, the camera is connected to the side wall of the control box, the support frame is connected to the outer wall of the installation box, the support frame and the installation box are integrally formed, the motor is connected to the top of the support frame, and the output end of the motor is connected with a turbine blade;
the water pump and the electric telescopic rod are fixedly connected in the installation box, the input end of the water pump is connected with a first guide pipe, the output end of the electric telescopic rod is connected with a lifting plate, the first guide pipe is connected with the lifting plate, the liquid storage box is connected to the bottom of the support frame, a second guide pipe is arranged in the support frame, the water pump is connected with the liquid storage box through the second guide pipe, the bottom of the liquid storage box is connected with a ship-shaped box in a sliding mode, and the bottom of the liquid storage box is provided with a drain hole;
the bottom of the liquid storage tank is connected with an electric cylinder body, the top of the ship-shaped tank is connected with an electric cylinder sliding block, and the electric cylinder sliding block is connected to the electric cylinder body in a sliding mode.
2. An auxiliary fire extinguishing apparatus according to claim 1, wherein a chute is formed at the bottom of the liquid storage tank, a slide rail is connected to the boat-shaped tank, the slide rail and the boat-shaped tank are integrally formed, and the slide rail is slidably connected in the chute.
3. An auxiliary fire extinguishing apparatus according to claim 1, wherein the bottom of the installation box is provided with a through groove, and the first conduit extends to the bottom through the through groove.
4. An auxiliary fire suppression device according to claim 3, wherein said first conduit is embodied as a flexible hose.
5. An auxiliary fire extinguishing apparatus according to claim 1, wherein the top of the liquid storage tank is provided with an overflow hole.
6. An auxiliary fire suppression device according to claim 1, wherein the number of said tanks is specifically four.
7. An aviation fire extinguishing method applied to the aviation fire extinguishing auxiliary device of any one of claims 1 to 6, characterized in that the operation steps are as follows:
s1: when a worker detects a fire, the motor is started through the control box, so that the device body is lifted to go to the nearby lake surface to take water, and the fire is assisted by ground firemen to extinguish the fire;
s2: the camera is used for observing the water ripple fluctuation amount of the lake surface to be fetched, when the lake surface is relatively flat, the lake surface can directly land on the water surface to fetch water at the highest speed, when the lake surface lands on the lake surface, the ship-shaped box is of a hollow structure, and the four ship-shaped boxes arranged diagonally can ensure that the liquid storage box is provided with enough buoyancy to float on the water surface no matter whether the interior of the liquid storage box is water or not;
s3: when the lake surface has large water waves, the device body can be suspended above the water surface to take water, and the telescopic amount of the first conduit is adjusted by controlling the electric telescopic rod, so that the first conduit can still touch the water surface to take water in the suspension process;
s4: after the device body is ready under the two conditions of S2 and S3, starting a water pump to pump lake water;
s5: the extracted lake water is distributed into four liquid storage tanks through four second guide pipes, and after the liquid storage tanks are filled with water, the turbine blades are driven by the motor to rotate at a high speed, so that the device body takes off to a position above a fire source;
s6: when the fire source is over, the electric cylinder body is started to slide the four ship-shaped boxes to the position of the installation box, so that the drain holes are opened to directly drain water in the liquid storage box, and the fire source is extinguished;
s7: after the fire extinguishing is finished, the control box control device body returns to the ground.
8. An aviation fire extinguishing method according to claim 7, wherein the control box in S1 adopts a NAZA-MV2 control system.
9. An airborne fire extinguishing method according to claim 7, characterised in that the suspension in S3 is maintained at a height of 500 to 800 mm.
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| CN202110146419.8A CN112891779B (en) | 2021-02-03 | 2021-02-03 | Aviation fire extinguishing auxiliary device and aviation fire extinguishing method |
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| CN202110146419.8A CN112891779B (en) | 2021-02-03 | 2021-02-03 | Aviation fire extinguishing auxiliary device and aviation fire extinguishing method |
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