CN109692413B - Memory alloy restraint type air explosion fire extinguishing device - Google Patents
Memory alloy restraint type air explosion fire extinguishing device Download PDFInfo
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- CN109692413B CN109692413B CN201811579540.4A CN201811579540A CN109692413B CN 109692413 B CN109692413 B CN 109692413B CN 201811579540 A CN201811579540 A CN 201811579540A CN 109692413 B CN109692413 B CN 109692413B
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 50
- 238000004880 explosion Methods 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 55
- 238000003860 storage Methods 0.000 claims abstract description 50
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 238000009527 percussion Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000010304 firing Methods 0.000 claims description 62
- 239000000843 powder Substances 0.000 claims description 32
- 229910052744 lithium Inorganic materials 0.000 claims description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 24
- 235000021419 vinegar Nutrition 0.000 claims description 20
- 239000000052 vinegar Substances 0.000 claims description 20
- 239000003814 drug Substances 0.000 claims description 16
- 239000008187 granular material Substances 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000010146 3D printing Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000003380 propellant Substances 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 11
- 239000002245 particle Substances 0.000 description 4
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 240000007643 Phytolacca americana Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000009087 cell motility Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/08—Containers destroyed or opened by bursting charge
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a memory alloy restraint type air explosion fire extinguishing device, and belongs to the technical field of special fire fighting equipment. Comprises a fire extinguishing agent storage device, a percussion device, a projection device, an energy device, an upper shell, a lower shell, a strong double-sided adhesive and a locking pin. The fire extinguishing agent storage device is used for providing substances needed for fire extinguishing, the energy device is used for locking the fire extinguishing device, accidental triggering is prevented, and electric energy is provided for the projection device, the projection device is used for pushing the fire extinguishing agent storage device and the triggering device, the upper shell and the lower shell are in a circular shape, and strength protection is provided for the fire extinguishing device. The fire extinguishing device has the advantages that the locking pin ensures safety at ordinary times, the integral structure has the tumbler characteristic, the strong double-sided adhesive is arranged at the bottom of the fire extinguishing device, so that the fire extinguishing device can be quickly and stably arranged, and the trigger device is positioned right above the fire extinguishing device after the fire extinguishing device is stably arranged, so that the fire extinguishing agent storage device is effectively dispersed in the air.
Description
Technical Field
The invention discloses a memory alloy restraint type air explosion fire extinguishing device, and belongs to the technical field of special fire fighting equipment.
Background
Along with the development of economy in China, various high-rise buildings are continuously emerged, and the modern buildings are large in scale, high in standard, dense in personnel and numerous in equipment. But the fire accident of high buildings also rises. The capability of the existing fire-fighting equipment is seriously unbalanced with the development of high-rise buildings. The poor maneuverability of fire-fighting equipment, and the surrounding environmental influence and other factors have become the fatal defects that restrict the effective fire fighting of high-rise buildings.
At present, the examination on the safety and the fire extinguishing effect of the fire extinguishing device becomes a great importance.
The fire extinguishing bombs developed in the market at present are exploded on the ground, are limited by factors such as terrain and the like, have poor fire extinguishing effect and cannot realize large-scale fire extinguishing; and the fire extinguishing bomb is mostly ignited by the gunpowder rope, the burning time of the gunpowder rope is wide in distribution range, and the fire extinguishing bomb is extremely easy to be affected with damp, so that the fire extinguishing bomb is easy to fail to reach the fire scene and acts on the periphery of the fire scene, or the fire extinguishing bomb cannot act after entering the fire scene.
As for general indoor articles, because walls and ceilings are decorated, a lot of inflammable wood and paint exist, the fire is usually moved upwards, and after a general fire extinguishing bomb is thrown into a building, only flames on the ground can be extinguished, and once the fire is caught on the walls and the ceilings, the fire extinguishing bomb is difficult to extinguish, and the existing fire extinguishing bomb has a general fire extinguishing effect.
Disclosure of Invention
The invention provides a memory alloy constrained air explosion fire extinguishing device for overcoming the defects and shortcomings of the prior art, which has two-stage safety, is not easy to have accidental effects, ensures the safety at ordinary times, can act in the air, fully exerts the fire extinguishing efficiency and is particularly suitable for complex indoor environments.
In order to achieve the purpose, the invention adopts the following technical scheme:
a memory alloy restraint type air explosion fire extinguishing device is characterized by comprising a fire extinguishing agent storage device, a triggering device, a projecting device, an energy device, an upper shell, a lower shell, a strong double-sided adhesive and a locking pin.
The fire extinguishing agent storage device is used for providing substances required by fire extinguishing, and comprises superfine dry powder and an internally hollowed cavity manufactured based on a 3D printing technology, wherein the cavity is made of plastic, such as ABS (acrylonitrile butadiene styrene) plastic, the superfine dry powder is used as the fire extinguishing agent, the fire extinguishing efficiency of the fire extinguishing agent is more than 40 times that of a water-series fire extinguishing agent and 6-10 times that of a common dry powder fire extinguishing agent, the maximum fire extinguishing effect can be achieved in the shortest time, the internally hollowed cavity manufactured based on the 3D printing technology is adopted, the cavity is made of the plastic material, the 3D printing technology is a material stacking mode for manufacturing parts, the interior of the fire extinguishing agent storage device can be hollow, if a traditional mechanical processing mode is adopted, a cavity body and a cavity cover of the cavity need to be processed, threads or screw holes need to be processed, the connection of the cavity body and the cavity cover is realized, and the traditional cavity body and cavity cover can be equivalent to the traditional, after the chamber 3D prints the completion, only need open a aperture, conveniently toward the inside superfine dry powder of pouring into of chamber can, the plastics material is chooseed for use to the chamber material, explodes superfine dry powder and chamber after the firing device of being convenient for explodes, is favorable to superfine dry powder dispersion.
The firing device comprises a firing pin, a firing pin spring, a needling detonator, black powder, a shell and a small pressing screw, wherein the firing pin, the firing pin spring and the needling detonator are arranged in the shell, the firing pin spring is in a compressed state, the compression amount is 10% -15%, the firing pin is normally restrained by the firing pin, the firing pin is far away from the needling detonator, the tip of the bottom of the firing pin is 7-10 mm away from the needling detonator, the needling detonator is prevented from being fired under the accidental conditions of vibration, collision and the like when the firing pin is flat, the upper end of the firing pin is exposed out of the upper end face of the shell by 10mm, the black powder is arranged in the shell, after the needling detonator is fired by the firing pin, the needling detonator detonators detonate the black powder, the firing device is arranged in the middle of the fire extinguishing agent storage device and provides dispersed kinetic energy for the fire extinguishing agent storage device, the firing device is normally locked by the firing pin spring and is far away from the needling detonator, the safety at ordinary times is ensured, the firing pin overcomes the resistance of the firing pin spring to poke the needle-punched detonator, and the needle-punched detonator detonates the black powder.
The throwing device mainly comprises a throwing medicine box, an electric detonator, an electric switch, a throwing body and a push plate, wherein the throwing medicine box mainly comprises double vinegar granules 11, a nitro-soft sheet and a box body, the double vinegar granules 11 are arranged in the box body, the nitro-soft sheet covers the double vinegar granules 11, the electric switch is of two beryllium bronze cylindrical structures, after the electric switch is connected with electricity, the electric detonator provides electric energy, the electric detonator ignites the throwing medicine box after acting, the throwing medicine box provides kinetic energy for a fire extinguishing agent storage device and a percussion device which are arranged on the throwing device, the push plate is shaped like a 'table', the arrangement is that the space is utilized to the maximum extent, the quality of the fire extinguishing agent storage device is improved, the material of the push plate is foamed aluminum with the porosity of 60-70%, the push plate is arranged on the throwing body, the fire extinguishing agent storage device is arranged at the upper end of the push plate, the push plate plays a role of buffering and protection, and, causing damage to the fire extinguishing agent storage device because the foamed aluminum has light weight, high specific stiffness, good high damping and shock absorbing performance and impact energy absorption rate, the damping performance of the foamed aluminum is 5-10 times that of the metal aluminum, for example, when the foamed aluminum with the porosity of 84% is deformed by 50%, the foamed aluminum can absorb 2.5MJ/cm3The above energy.
The energy device consists of a memory alloy ring, a sliding block, a push spring, a cavity and a lithium battery, wherein the memory alloy ring is TiNiCuNb memory alloy with a chemical formula of Ti45Ni31.5Cu13.5Nb10The shape of the memory alloy ring isThe circular ring has the characteristic that the heated inner diameter is increased, the memory alloy ring is arranged at one end of the sliding block, which is connected with the memory alloy ring, is a cylinder, the diameter of the cylinder of the sliding block is larger than the inner diameter of the memory alloy ring in a safety state, after the inner diameter of the memory alloy ring is increased due to heating, the diameter of the cylinder of the sliding block is smaller than the inner diameter of the deformed memory alloy ring, the other end of the sliding block is in the shape of a rectangular block, a groove is formed in the end part of the rectangular block, a push spring is accommodated in the groove and is in a compression state, a large groove is formed in the upper end of the sliding block and is used for accommodating a lithium battery, a small groove is further formed in the lower end of the sliding block, a gap is formed between the sliding45Ni31.5Cu13.5Nb10The TiNiCuNb memory alloy material overcomes the response hysteresis of the traditional shape memory alloy, and is a shape memory alloy with good processing plasticity, the lithium battery is fixed on the sliding block by gluing, two copper binding posts are arranged on the lithium battery, and a gap is formed between the upper ends of the two copper binding posts and the upper end of the cavity, so that the sliding block can conveniently move in the cavity;
the fire extinguishing device is characterized in that the upper shell and the lower shell are connected together in a bonding or welding mode, the upper shell and the lower shell are circular in shape, the bottom of the lower shell is not provided with an arc and is a smooth plane, the bottom of the lower shell is also provided with a groove, and strong double-sided adhesive is placed in the groove;
the locking pin is arranged at the bottom of the lower shell, the upper end of the locking pin extends into the sliding block to lock the sliding block in a safety state, and the lower end of the locking pin protrudes out of the bottom of the lower shell.
Furthermore, the center of gravity of the whole fire extinguishing device is located at the lower end and is located in the energy device, the upper shell and the lower shell have the tumbler characteristic, so that the triggering device is located right above the fire extinguishing device after the fire extinguishing device stably moves, and the triggering device is guaranteed to be reliably triggered after impacting a ceiling.
Furthermore, the distance from the central axis of the power connection switch to the central axis of the lithium battery is equal to the distance from the initial state to the position where the sliding block moves in place, and the stroke of the push spring is larger than the distance from the initial state to the position where the sliding block moves in place.
Further, connect the electric switch to be fixed in on the cavity, and connect the electric switch to put in place the back at the lithium cell motion, connect the lower extreme of electric switch and reliably contact with two copper terminal posts of lithium cell, so set up, ensure to connect the electric switch can reliably contact with the lithium cell.
Furthermore, the relation between the mass m1 of the double vinegar granules 11 in the propellant medicine box and the mass m2 formed by the fire extinguishing agent storage device, the trigger device and the push plate is that m1 is (0.003-0.008) m2, and the mass m1 of the double vinegar granules 11 is more than 4 g. According to the arrangement, in the mass ratio range, the double vinegar particles 11 are not wasted, the double vinegar particles 11 in the cast medicine box can be ensured to reliably push the fire extinguishing agent storage device, the firing device and the push plate to the high altitude, the lift-off height is 3.5-5 m, the floor height of a common high-rise residential building is 2.8m, and therefore the firing device is enabled to have enough kinetic energy to impact a ceiling, and the firing device is enabled to be reliably fired.
Furthermore, the relation between the mass m3 of the black powder and the mass m4 of the fire extinguishing agent storage device is 0.006m 4-0. 3-0.009 m4, the arrangement is that according to test data, in the mass relation range, after the black powder explodes, the explosion kinetic energy of the black powder can reliably disperse the fire extinguishing agent storage device in the air, and even if the consumption of the black powder is increased, the effect of dispersing the fire extinguishing agent storage device in the air by the explosion kinetic energy of the black powder is not increased, so the consumption effect of the black powder in the range is optimal.
Furthermore, the connection strength of the upper shell and the lower shell is lower than the strength of the chamber of the fire extinguishing agent storage device, so that the upper shell can reliably fall off from the lower shell after the projectile device acts, and the fire extinguishing agent storage device, the percussion device and the push plate are further reliably pushed to move to the high altitude.
The working principle of the invention is as follows:
at ordinary times, the slider on the energy device is limited at the original state by memory alloy ring and stop pin, and the push spring of this moment is in the compression state, and the lithium cell on the slider is kept away from and is met electrical switch, and whole extinguishing device is in safe state this moment, even memory alloy ring accident, the stop pin also can lock the slider, prevents that the slider from moving in place.
When a fire disaster occurs to a building at a certain position, the fire extinguishing device is unscrewed from the locking pin, the locking safety is removed, and then the fire extinguishing device is thrown into the building with the fire disaster from the outside (such as a window or a door).
After the memory alloy ring senses the temperature of an external fire field, because the memory alloy ring has the characteristic of the enlarged heated inner diameter, when the inner diameter of the memory alloy ring is enlarged to be larger than the diameter of a cylinder at one end of a sliding block, the restriction on the sliding block is removed, the pushing spring in a compressed state pushes the sliding block to move in place, because the sliding block is designed to have the limiting function after being in place, after the sliding block moves in place, a lithium battery on the sliding block is changed from a lithium battery which is far away from an electric switch in a projection device to be reliably contacted with the electric switch, after the electric switch is electrified, an electric detonator is detonated, then double vinegar particles 11 in a medicine box are detonated by the electric detonator, kinetic energy is generated after the double vinegar particles 11 act, a pushing plate on the projection device, a fire extinguishing agent storage device and a firing device are pushed to move upwards, because the connecting strength of an upper, when the push plate, the fire extinguishing agent storage device, the triggering device and the upper shell move upwards, the triggering device collides with the ceiling of a building, the firing pin is impacted reversely, the firing pin overcomes the resistance of the firing pin spring and moves downwards, the firing pin punctures the needle-punched detonator, the needle-punched detonator ignites black powder, the black powder explodes to provide dispersed kinetic energy for the fire extinguishing agent storage device, and superfine dry powder in the fire extinguishing agent storage device is dispersed in the air to achieve the fire extinguishing effect.
The invention has the following beneficial effects:
a) the two-stage insurance of the memory alloy ring and the locking pin is arranged, the safety of the fire extinguishing device at ordinary times is guaranteed, the insurance of the memory alloy ring can be relieved only in the high-temperature environment of a fire scene, the sliding block is locked at ordinary times by the locking pin, and if the locking pin is not relieved, the sliding block cannot move even if the memory alloy ring is accidentally acted;
b) the whole structure has the characteristic of a tumbler, and the bottom of the lower shell is provided with strong double-sided adhesive, so that the fire extinguishing device is quick and stable, and the trigger device is positioned right above the fire extinguishing device after the fire extinguishing device moves stably, so that the fire extinguishing device can reliably realize throwing motion;
c) the projectile device is arranged, so that the fire extinguishing device has the projectile kinetic energy and can be used for projecting the fire extinguishing agent storage device to the air, and the efficiency of the fire extinguishing device is exerted to the maximum extent;
d) the invention has simple operation, can realize the automatic fire extinguishing function by directly throwing the fire extinguishing agent to the fire scene environment, and has better fire extinguishing effect.
Drawings
FIG. 1 is a schematic structural diagram of a memory alloy confined type air explosion fire extinguishing apparatus according to the present invention;
FIG. 2 is a schematic structural component view of the percussion device of the present invention;
figure 3 is a schematic view of the construction of the projectile apparatus of the invention;
fig. 4 is a schematic structural diagram of the energy device of the present invention.
The figures represent the following meanings:
in fig. 1: 1-fire extinguishing agent storage device, 2-percussion device, 3-casting device, 4-energy device, 5-upper shell, 6-lower shell, 7-strong double-sided adhesive, 8-locking pin;
in fig. 2: 2-1-firing pin, 2-firing pin spring, 2-3-acupuncture detonator, 2-4-black powder, 2-5-shell and 2-6-small pressing screw;
in fig. 3: 3-1-a projectile box, 3-2-an electric detonator, 3-an electric switch, 3-4-a projectile body and 3-5-a push plate;
in fig. 4: 4-1-memory alloy ring, 4-2-sliding block, 4-3-push spring, 4-cavity and 4-5-lithium battery.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A specific embodiment of a memory alloy restraint type air explosion fire extinguishing device, as shown in figure 1, comprising a fire extinguishing agent storage device 1, a firing device 2, a projecting device 3, an energy device 4, an upper shell 5, a lower shell 6, a strong double-sided adhesive 7 and a locking pin 8;
the fire extinguishing agent storage device 1 is used for providing substances required by fire extinguishing, and comprises superfine dry powder 1-1 and a cavity 1-2 which is made by 3D printing technology and is hollow inside, wherein the cavity 1-2 is made of ABS;
the firing device 2 is shown in figure 2 and comprises a firing pin 2-1, a firing pin spring 2-2, a needle-punched detonator 2-3, black powder 2-4, a shell 2-5 and a small pressing screw 2-6, wherein the firing pin 2-1, the firing pin spring 2-2 and the needle-punched detonator 2-3 are arranged in the shell 2-5, the firing pin spring 2-2 is in a compression state, the compression amount is 10% -15%, the firing pin 2-2 normally restrains the firing pin 2-1, the firing pin 2-1 is far away from the needle-punched detonator 2-3, the tip of the bottom of the firing pin 2-1 is 7 mm-10 mm away from the upper end of the needle-punched detonator 2-3, the needle-punched detonator 2-3 is prevented from being fired under the accidental conditions of vibration, collision and the like when the firing pin 2-1 is flat, the upper end of the firing pin 2-1 is exposed out of the upper end face of the shell 2-5, the black powder 2-4 is arranged in the shell 2-5, when the needle-pricked detonator 2-3 is pricked by the firing needle 2-1, the needle-pricked detonator 2-3 detonates the black powder 2-4, the relation between the mass m3 of the black powder 2-4 and the mass m4 of the fire extinguishing agent storage device 1 is 0.006m4 and m3 and 0.009m4, the preferred mass m3 of the black powder 2-4 is 8 g, the mass m4 of the fire extinguishing agent storage device 1 is 1.25 kg, and the percussion device 2 is arranged in the middle of the fire extinguishing agent storage device 1 and provides dispersed kinetic energy for the fire extinguishing agent storage device 1;
the ejection device 3 is mainly composed of an ejection medicine box 3-1, an electric detonator 3-2, an electric switch 3-3, an ejection body 3-4 and a push plate 3-5, the ejection medicine box 3-1 is mainly composed of double vinegar granules 11, a nitro film and a box body, the double vinegar granules 11 are loaded in the box body, the nitro film covers the double vinegar granules 11, the relation between the mass m1 of the double vinegar granules 11 in the ejection medicine box 3-1 and the mass m2 composed of the fire extinguishing agent storage device 1, the trigger device 2 and the push plate 3 is m1 ═ 0.003-0.008) m2, the mass m1 of the double vinegar granules 11 is more than 4 g, the mass m1 of the double vinegar granules 11 selected in the embodiment is 4.5 g, and the mass m2 composed of the fire extinguishing agent storage device 1, the trigger device 2 and the push plate 3 is 1.4 kg;
the electric switch 3-3 is of two beryllium bronze cylindrical structures, the distance between the central axis of the electric switch 3-3 and the central axis of the lithium battery 3-5 is equal to the distance between the sliding block 4-2 in the initial state and the movement in place, the electric switch 3-3 is fixed on the cavity 4-4, after the electric switch 3-3 moves in place, the lower end of the electric switch 3-3 is reliably contacted with two copper binding posts of the lithium battery 3-5, after the electric switch 3-3 is connected with electricity, the electric detonator 3-2 is provided with electric energy, after the electric detonator 3-2 acts, the propellant kit 3-1 is detonated, the propellant kit 3-1 provides kinetic energy for the fire extinguishing agent storage device 1, the firing device 2 and the push plate 3-5, the push plate 3-5 is in a shape of a 'n', the material is foamed aluminum with the porosity of 60-70%, the push plate 3-5 is arranged on the projectile body 3-4, the fire extinguishing agent storage device 1 is arranged at the upper end of the push plate 3-5, and the push plate 3-5 plays a role in buffering and protection, so that when the projectile device 3 acts, impact force impacts the fire extinguishing agent storage device 1 to prevent the fire extinguishing agent storage device 1 from being damaged;
the energy device 4 is composed of a memory alloy ring 4-1, a sliding block 4-2, a push spring 4-3, a cavity 4-4 and a lithium battery 4-5, wherein the memory alloy ring 4-1 is TiNiCuNb memory alloy with a chemical formula of Ti45Ni31.5Cu13.5Nb10The shape of the memory alloy ring 4-1 is a circular ring and has the characteristic that the heated inner diameter is enlarged, the memory alloy ring 4-1 is arranged at one end of a sliding block 4-2, the end of the sliding block 4-2 connected with the memory alloy ring 4-1 is a cylinder, the diameter of the cylinder of the sliding block 4-2 is larger than the inner diameter of the memory alloy ring 4-1 in a safety state, when the inner diameter of the memory alloy ring 4-1 is enlarged due to heating, the diameter of the cylinder of the sliding block 4-2 is smaller than the inner diameter of the deformed memory alloy ring 4-1, the other end of the sliding block 4-2 is in a rectangular block shape, the end part of the rectangular block is provided with a groove, a push spring 4-3 is accommodated in the groove, the push spring 4-3 is in a compression state, and the stroke of the push spring 4-3 is larger than the distance from the, the upper end of the sliding block 4-2 is provided with a large groove, the inside of the large groove is used for accommodating a lithium battery 4-5, the lower end of the sliding block 4-2 is also provided with a small groove, the sliding block 4-2 is provided with a gap from the upper end of the cavity 4-4, the bottom of the cavity 4-4 is also provided with a through hole, the lithium battery 4-5 is fixedly bonded on the sliding block 4-2 by glue, the lithium battery 4-5 is provided with two copper binding posts, and the upper ends of the two copper binding posts are provided with a gap from the upper end of the cavity 4-4;
the upper shell 5 and the lower shell 6 are connected together in a bonding or welding mode, the shapes of the upper shell 5 and the lower shell 6 form a circle, the bottom of the lower shell 6 does not have an arc and is a smooth plane, the bottom of the lower shell 6 is also provided with a groove, a strong double-sided adhesive 7 is placed in the groove, the middle part of the bottom of the lower shell 6 is provided with a threaded hole, and the upper shell 5 and the lower shell 6 provide strength protection for the whole fire extinguishing device;
the locking pin 8 is arranged at the bottom of the lower shell 6, the upper end of the locking pin extends into the sliding block 4-2 to lock the sliding block 4-2 in a safety state, and the lower end of the locking pin 8 protrudes out of the bottom of the lower shell 6.
Furthermore, the center of gravity of the whole fire extinguishing device is located at the lower end and is located inside the energy device 4, and the upper shell 5 and the lower shell 6 have the tumbler characteristic, so that the firing device 2 is located right above the fire extinguishing device after the fire extinguishing device is stably moved.
The total weight of the embodiment is 1.8 kg, and the test effect shows that the embodiment is thrown into a fire scene, 8 seconds later, the explosion sound of the medicine box 3-1 thrown in the throwing device 3 is heard, which shows that the energy source is chargedThe device 4 is reliably relieved and moves to the place, the explosion sound is heard again after about 1 second, the triggering device 2 is indicated to act, the black powder 2-4 detonates the fire extinguishing agent storage device 1, the fire extinguishing effect is checked on site, and the embodiment can reach 25m3The fire source in the space is effectively extinguished, and particularly, the fire source is effectively extinguished in places such as a roof, a ceiling, a wall and the like which are usually difficult to extinguish.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (3)
1. A memory alloy restraint type air explosion fire extinguishing device is characterized by comprising a fire extinguishing agent storage device (1), a firing device (2), a projecting device (3), an energy device (4), an upper shell (5), a lower shell (6), a strong double-sided adhesive (7) and a locking pin (8);
the fire extinguishing agent storage device (1) is used for providing substances required by fire extinguishing, and comprises superfine dry powder (1-1) and a cavity (1-2) which is manufactured based on a 3D printing technology and is hollow inside, and the cavity (1-2) is made of plastic;
the percussion device (2) comprises a firing pin (2-1), a firing pin spring (2-2), a needled detonator (2-3), black powder (2-4), a shell (2-5) and a small pressing screw (2-6), wherein the firing pin (2-1), the firing pin spring (2-2) and the needled detonator (2-3) are arranged in the shell (2-5), the firing pin spring (2-2) is in a compression state, the compression amount is 10% -15%, the firing pin (2-2) normally restrains the firing pin (2-1) to enable the firing pin (2-1) to be far away from the needled detonator (2-3), the tip of the bottom of the firing pin (2-1) is 7-10 mm away from the needled detonator (2-3), and the flat-time percussion vibration and percussion of the firing pin (2-1) under the accidental conditions are prevented, the upper end of the firing pin (2-1) is exposed out of the upper end face of the shell (2-5) by 10mm, the black powder (2-4) is arranged in the shell (2-5), when the needle-punched detonator (2-3) is fired by the firing pin (2-1), the needle-punched detonator (2-3) detonates the black powder (2-4), and the firing device (2) is arranged in the middle of the fire extinguishing agent storage device (1) to provide dispersed kinetic energy for the fire extinguishing agent storage device (1);
the throwing device (3) mainly comprises a throwing medicine box (3-1), an electric detonator (3-2), an electric switch (3-3), a throwing body (3-4) and a push plate (3-5), the throwing medicine box (3-1) mainly comprises double vinegar granules 11, nitro films and a box body, the double vinegar granules 11 are arranged in the box body, the nitro films cover the double vinegar granules 11, the electric switch (3-3) is of a two beryllium bronze cylindrical structure, after the electric switch (3-3) is connected with electricity, the electric detonator (3-2) is provided with electric energy, after the electric detonator (3-2) acts, the throwing medicine box (3-1) is ignited, the throwing medicine box (3-1) provides kinetic energy for a fire extinguishing agent storage device (1) and a firing device (2) which are arranged on the throwing device (3), and the push plate (3-5) is in a shape of a 'n', the material is foamed aluminum with the porosity of 60-70%, the push plate (3-5) is arranged at the upper end of the projectile body (3-4), the fire extinguishing agent storage device (1) is arranged at the upper end of the push plate (3-5), and the push plate (3-5) plays a role in buffering and protection, so that when the projectile device (3) acts, impact force impacts the fire extinguishing agent storage device (1) to prevent the fire extinguishing agent storage device (1) from being damaged;
the energy device (4) is composed of a memory alloy ring (4-1), a sliding block (4-2), a push spring (4-3), a cavity (4-4) and a lithium battery (4-5), wherein the memory alloy ring (4-1) is a TiNiCuNb memory alloy with the chemical formula of Ti45Ni31.5Cu13.5Nb10, the memory alloy ring (4-1) is in the shape of a circular ring and has the characteristic of enlarging the heated inner diameter, the memory alloy ring (4-1) is arranged at one end of the sliding block (4-2), one end, connected with the memory alloy ring (4-1), of the sliding block (4-2) is a cylinder, the cylinder diameter of the sliding block (4-2) is larger than the inner diameter of the memory alloy ring (4-1) in a safety state, and when the memory alloy ring (4-1) is heated to enlarge the inner diameter, the cylinder diameter of the sliding block (4-2) is smaller than the inner diameter of the deformed memory alloy ring (4-1), the other end of the sliding block (4-2) is in a rectangular block shape, a groove is formed in the end portion of the rectangular block, a push spring (4-3) is accommodated in the groove, the push spring (4-3) is in a compressed state, a large groove is formed in the upper end of the sliding block (4-2), a lithium battery (4-5) is accommodated in the large groove, a small groove is further formed in the lower end of the sliding block (4-2), a gap is formed between the sliding block (4-2) and the upper end of the cavity (4-4), a through hole is further formed in the bottom of the cavity (4-4), the lithium battery (4-5) is fixedly connected to the sliding block (4-2) through glue, two copper binding posts are arranged on the lithium battery (4-5), and a gap is formed between the upper ends of the two copper binding posts;
the fire extinguishing device is characterized in that the upper shell (5) and the lower shell (6) are connected together in a bonding or welding mode, the upper shell (5) and the lower shell (6) are circular in shape, the bottom of the lower shell (6) is not provided with an arc and is a smooth plane, the bottom of the lower shell (6) is also provided with a groove, a strong double-sided adhesive (7) is placed in the groove, the middle part of the bottom of the lower shell (6) is provided with a threaded hole, and the upper shell (5) and the lower shell (6) provide strength protection for the whole fire extinguishing device;
the locking pin (8) is arranged at the bottom of the lower shell (6), the upper end of the locking pin is inserted into the sliding block (4-2) to lock the sliding block (4-2) in a safety state, and the lower end of the locking pin (8) protrudes out of the bottom of the lower shell (6);
the gravity center of the whole fire extinguishing device is positioned at the lower end and is positioned in the energy device (4), and the upper shell (5) and the lower shell (6) have the tumbler characteristic, so that the firing device (2) is positioned right above the fire extinguishing device after the fire extinguishing device moves stably;
the distance between the central axis of the power connection switch (3-3) and the central axis of the lithium battery (4-5) is equal to the distance between the sliding block (4-2) from the initial state to the position of movement, and the stroke of the push spring (4-3) is greater than the distance between the sliding block (4-2) from the initial state to the position of movement;
the power connection switch (3-3) is fixed on the cavity (4-4), and after the lithium battery (4-5) moves in place, the lower end of the power connection switch (3-3) is reliably contacted with two copper binding posts of the lithium battery (4-5);
the relation between the mass m1 of the double vinegar granules 11 in the propellant medicine box (3-1) and the mass m2 formed by the fire extinguishing agent storage device (1), the firing device (2) and the push plate (3-5) is that m1 is (0.003-0.008) m2, and the mass m1 of the double vinegar granules 11 is more than 4 g.
2. A memory alloy confined type air explosion fire extinguishing apparatus according to claim 1, wherein the relationship between the mass m3 of the black powder (2-4) and the mass m4 of the fire extinguishing agent storage device (1) is 0.006m4 m3 m 4.
3. A memory alloy restraint type air blast fire extinguishing apparatus according to claim 1, wherein the strength of the connection of the upper case (7) and the lower case (8) is lower than the strength of the chamber (1-2) of the fire extinguishing agent storage apparatus (1).
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| CN201811579540.4A CN109692413B (en) | 2018-12-24 | 2018-12-24 | Memory alloy restraint type air explosion fire extinguishing device |
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| CN201811579540.4A CN109692413B (en) | 2018-12-24 | 2018-12-24 | Memory alloy restraint type air explosion fire extinguishing device |
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| CN2193180Y (en) * | 1994-05-23 | 1995-03-29 | 南京理工大学 | Fire-extinguishing shell and firing apparatus |
| US6012531A (en) * | 1998-04-20 | 2000-01-11 | Ryan; James W. | Fire extinguishing bomb |
| KR20090112212A (en) * | 2008-04-24 | 2009-10-28 | 장인성 | A fire extinguisher |
| CN105783615B (en) * | 2016-03-03 | 2017-03-29 | 湖北三江航天红林探控有限公司 | A kind of fuse security mechanism with the insurance of two-stage marmem and fuse |
| CN106362335A (en) * | 2016-08-02 | 2017-02-01 | 北京电子工程总体研究所 | Fire extinguishing bomb based on aerial throwing mode |
| CN207575599U (en) * | 2017-09-18 | 2018-07-06 | 南京森林警察学院 | A kind of water base fire extinguisher bomb of the emission-type of forest fire prevention and control |
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