CN211751978U - Pulse type aerosol fire extinguishing device - Google Patents
Pulse type aerosol fire extinguishing device Download PDFInfo
- Publication number
- CN211751978U CN211751978U CN201922311667.4U CN201922311667U CN211751978U CN 211751978 U CN211751978 U CN 211751978U CN 201922311667 U CN201922311667 U CN 201922311667U CN 211751978 U CN211751978 U CN 211751978U
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- fire extinguishing
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- fire
- bottom plate
- generating agent
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- 239000000443 aerosol Substances 0.000 title claims abstract description 71
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 60
- 239000007921 spray Substances 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims description 18
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 230000000977 initiatory effect Effects 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 5
- 239000003380 propellant Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 38
- 238000005507 spraying Methods 0.000 description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 12
- 238000001514 detection method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 description 8
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000002923 metal particle Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Abstract
The utility model discloses a pulse type aerosol fire extinguishing device, which comprises a face mask and a bottom plate which are combined to form a hollow cavity, wherein aerosol generating agent is placed in the hollow cavity, the surface of the face mask is provided with pressure relief holes, the side part of the face mask and the side part of the bottom plate are combined to form spray holes, and one side of the aerosol generating agent is in contact with a starting line of a starting part; the utility model discloses the device can be applicable to the inside narrow space of battery box, can accelerate the speed of putting of spouting of fire extinguishing agent simultaneously, has improved the speed of putting out a fire greatly.
Description
Technical Field
The utility model relates to a fire control technical field specifically indicates an impulse type aerosol extinguishing device.
Background
The conventional fire extinguishing methods in the market mainly comprise a pipe network type aerosol fire extinguishing method, a fire detection pipe type perfluorohexanone fire extinguishing method, a pipe network type dry powder fire extinguishing method and a pipe network type water system fire extinguishing method, wherein in the four fire extinguishing methods, the pipe network type aerosol fire extinguishing method is that a grain burns layer by layer to release an aerosol generating agent; the fire detection tube type perfluorohexanone fire extinguishing method takes perfluorohexanone as a fire extinguishing medium, does not need laying a fire extinguishing agent conveying pipeline, and can release the fire extinguishing agent after being self-started by temperature sensing of the temperature sensing fire detection tube; the pipe network type dry powder fire extinguishing method and the pipe network type water system fire extinguishing method are based on the dry powder fire extinguishing method and the water fire extinguishing method, a pipe network system is added, spraying dead angles are reduced as much as possible, and the maximum effect can be exerted in the environment; however, the above fire extinguishing methods all have the same problem, and because all of them are affected by the burning area, although the spraying is stable, the spraying speed is generally slow, and the fire extinguishing rate is low.
In addition, the battery pack in the current market generally comprises a battery box and batteries inside the battery box, the inside of the battery box is not provided with a fire extinguishing device, the fire extinguishing device is arranged outside the battery box to extinguish fire, or the fire extinguishing device is manually taken to extinguish fire after the battery pack is on fire, so that certain hysteresis exists, when the batteries inside the battery box are on fire for a period of time, smoke can be found by a detection device or people when the smoke overflows to the outside of the battery box, and at the moment, the fire extinguishing is difficult; in addition, the existing fire extinguishing device is difficult to be arranged in the battery box because the fire extinguishing device is large in size and difficult to adapt to the narrow space in the battery box.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide an pulsed aerosol extinguishing device, can be applicable to the inside narrow space of battery box, can accelerate the speed of putting of spouting of fire extinguishing agent simultaneously, improve the speed of putting out a fire.
The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: a pulse type aerosol fire extinguishing device comprises a face mask and a bottom plate which are combined to form a hollow cavity, aerosol generating agents are placed in the hollow cavity, pressure relief holes are formed in the surface of the face mask, the side portion of the face mask and the side portion of the bottom plate are combined to form a spraying hole, and one side of the aerosol generating agents is in contact with a triggering line of a starting component.
Preferably, the aerosol generating agent is an aerosol generating agent powder or pieces.
Preferably, one side of the face mask is hinged with one side of the bottom plate, and the other side of the face mask is connected with the other side of the bottom plate through screws.
Preferably, the adhesive tape is adhered to the spraying hole, the pressure relief hole is covered with an aluminum film, and a moisture-proof pad is arranged at a position where the mask is contacted with the bottom plate.
Preferably, the outer side surface of the bottom plate is provided with a double-faced adhesive tape layer.
Preferably, the hollow cavity formed by the combination of the face mask and the bottom plate is in a flat square box structure, and the length, width and height of the hollow cavity are 135mm, 95mm and 10mm respectively.
Preferably, the starting part is a heat-sensitive wire structure or an electric ignition head structure.
Further, when the activating member is a thermosensitive wire structure, its initiation line is disposed parallel to the aerosol generating agent side portion.
The utility model has the advantages that:
the utility model has simple structure, can be used repeatedly, can be suitable for the narrow space inside the battery box, can accelerate the spraying speed of the fire extinguishing agent and greatly improve the fire extinguishing speed; the utility model discloses an aerosol generating agent is lighted the back, can be full of whole fire extinguishing area rapidly with the material of putting out a fire in the very short time, and the pulse of the material of putting out a fire is spouted and is put and can be produced the shock wave, makes the interior oxygen concentration of battery box reduce in the twinkling of an eye, and powerful gas is unrestrained simultaneously and is separated combustible vapor and combustible gas from the flame position impact to take away the temperature in the scene of a fire.
Drawings
FIG. 1 is a schematic view of a pulsed aerosol fire-extinguishing system with the face shield and base plate open;
FIG. 2 is a schematic view of a combined face shield and base plate of a pulsed aerosol fire-extinguishing system;
FIG. 3 is a side view of the structure of FIG. 2;
in the figure: the mask comprises a mask 1, a bottom plate 2, an aerosol generating agent 3, a pressure relief hole 4, a spraying hole 5, an initiating line 6, a screw 7, an adhesive tape 8, an aluminum film 9 and a double-sided adhesive layer 10.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 3, the pulse type aerosol fire extinguishing device comprises a face mask 1 and a bottom plate 2 which are combined to form a hollow cavity, an aerosol generating agent 3 is placed in the hollow cavity, a pressure relief hole 4 is formed in the surface of the face mask 1, a spraying hole 5 is formed by combining the side portion of the face mask 1 and the side portion of the bottom plate 2, and one side of the aerosol generating agent 3 is in contact with an initiation line 6 of a starting part.
Preferably, the aerosol generating agent 3 is an aerosol generating agent powder or pieces. The aerosol generating agent powder or fragments are ignited to generate inert gas and metal particles, the aerosol generating agent in the current market is compacted and then made into a shape of a grain, the burning speed of the grain is controlled by burning one surface of the grain, so that the stable spraying effect is achieved, the burning process is layer-by-layer burning, the aerosol generating agent is fully burnt due to the limited burning area of the grain, partial inert gas and metal particles are released, the chain type burning reaction is blocked by the free radicals seized by the metal particles to extinguish fire, and the inert gas achieves the auxiliary fire extinguishing effect; the aerosol generating agent powder or the fragments of the aerosol generating agent are not pressed into a grain shape, but the aerosol generating agent in the form of the powder or the fragments is directly stacked in a hollow cavity formed by the face mask 1 and the bottom plate 2, once the aerosol generating agent is ignited, all the powder or the fragments are directly detonated, so that a large amount of inert gas is released instantly, the oxygen concentration in the space in unit time is reduced, and a better fire extinguishing effect is achieved.
Preferably, one side of the face mask 1 is hinged with one side of the bottom plate 2, and the other side of the face mask is connected with the other side of the bottom plate 2 through a screw 7. This kind of design makes things convenient for switching face guard 1 and bottom plate 2, when opening face guard 1 from bottom plate 2, can carry out the powder charge, then with 1 lock of face guard to bottom plate 2 can, can make things convenient for used repeatedly like this.
Preferably, the adhesive tape 8 is adhered to the spray hole 5, the pressure relief hole 4 is covered with an aluminum film 9 (as shown in fig. 2, it is partially shown that the pressure relief hole 4 is covered with the aluminum film 9), and a moisture-proof pad is disposed at a position where the mask 1 and the bottom plate 2 are in contact with each other. Adhesive tape 8 can adopt the scotch tape in this embodiment can, both can prevent that aerosol propellant 3 from spilling, do not influence its process of spouting again, and behind pressure release hole 4 cover aluminium membrane 9, can play safety protection about, and too big when the internal pressure of hollow cavity, after surpassing the pressurized critical value of aluminium membrane 9, aluminium membrane 9 breaks or flies out, and partial fire extinguishing substance is in time released from pressure release hole 4 to reduce hollow cavity internal pressure greatly, prevent the danger of exploding.
Preferably, the outer side surface of the bottom plate 2 is provided with a double-sided adhesive layer 10. After the design, the bottom plate 2 can be stuck on the side part of the battery box, so that the whole fire extinguishing device can be conveniently installed in the narrow space of the battery box.
Preferably, the hollow cavity formed by the combination of the face mask 1 and the bottom plate 2 is a flat square box structure, and the length, width and height of the hollow cavity are 135mm, 95mm and 10mm respectively. The fire extinguishing device of this embodiment this kind of size can be applicable to the inside narrow and small space of lithium cell box, does benefit to and uses widely on a large scale.
Preferably, the starting part is a heat-sensitive wire structure or an electric ignition head structure. When the starting part is of a thermosensitive wire structure, a fire disaster occurs in a fire extinguishing area, the fire disaster can directly ignite the initiation wire 6, and then the initiation wire 6 ignites the aerosol generating agent 3; when starting element is electric ignition head structure, can set up detection device in the area of putting out a fire, detection device's signal line is connected with the controller, and the controller output is connected with starting element's initiation line 6, and when the condition such as conflagration, overheated takes place, detection device detects in the area of putting out a fire and produces high temperature environment because of the conflagration after, signals give the controller, and controller control starting element ignites aerosol propellant 3 through initiation line 6. In this embodiment, detection device is temperature sensor and/or smoke transducer, and the controller can select for use 51 singlechip, and the model is 80C51 singlechip, or selects for use STM32 microprocessor, and the model is STM32F 103.
Further, when the activating member is a thermosensitive wire structure, its trigger wire 6 is disposed parallel to the side of the aerosol-generating agent 3. After the design, the ignition line 6 can be ignited along one path of the side part of the aerosol generating agent 3 after being ignited, the ignition process is more uniform, and the ignition efficiency is higher.
After the device is installed in a lithium battery box, the pulse type fire extinguishing method comprises the following steps:
step 1): when a battery in the lithium battery box is in fire, the starting component ignites the aerosol generating agent 3;
step 2): the aerosol generating agent 3 is ignited and generates fire extinguishing substances which break through the adhesive tape 8 and are sprayed out from the spraying holes 5, then the whole lithium battery box is filled, a combustion chain is blocked, and the fire extinguishing process is carried out; in the above process, the aerosol generating agent 3 detonates when ignited and generates a shock wave containing inert gas, isolating the combustible vapor and/or gas from the flame, and carrying away heat in the fire.
In order to verify the utility model relates to an effect of pulsed method of putting out a fire, we should choose for use the experimental model that is more difficult to put out a fire, carry out the comparison through the mode of putting out a fire with traditional extinguishing device and this patent pulsed method of putting out a fire, verify the effect of this patent pulsed method of putting out a fire, we discover through the screening that the lithium cell conflagration is big for general conflagration, the degree of difficulty of putting out a fire, there is solid fire in the lithium cell conflagration, liquid fire, steam flame, its battery energy is big, easy after putting out a fire, experimental easy simulation, be convenient for relapse the experiment and observe.
A large number of experiments in the previous period verify that when the battery is overcharged, the safety window of the battery is large, after the pressure release valve of the battery is opened, electrolyte and decomposed combustible gas rarely overflow, but the battery is overcharged for 5-10 minutes continuously, a large amount of electrolyte steam and combustible gas overflow, when an ignition source exists inside or outside, the electrolyte steam and the combustible gas are ignited at a high rate, and once ignition occurs, the combustion inside and outside the battery box is very violent.
First, experiment model
The lithium battery box adopting the IP protection grade IP40 has the volume of about 0.03m3And 9 automobile-used lithium iron phosphate batteries are placed inside, and overcharging is carried out on the lithium batteries until electricity is generatedIf the battery only releases combustible gas and does not burn, the ignition device is used for igniting the inside and the outside of the lithium battery box simultaneously, after the fire extinguishing agent is released, if the fire extinguishing is successful, the battery box is kept still for 10min, and whether the battery box has the re-burning phenomenon or not is observed before heat is dissipated.
The first fire extinguishing method comprises the following steps: pipe network type aerosol fire extinguishing method (belonging to common aerosol fire extinguishing method)
In the process of putting out a fire, the pipe network type aerosol fire extinguishing device conveys the fire extinguishing agent to each corner of the battery box through a pipeline to realize uniform fire extinguishing without dead angles, (in the device of the proposal, the aerosol generating agent is pressed into aerosol generating agent grains, the grains burn layer by layer after being started to release the aerosol fire extinguishing agent, and the aerosol fire extinguishing agent is stably sprayed due to the influence of the burning area, and the spraying speed is slower than that of a pulse type fire extinguishing method)
The second fire extinguishing method comprises the following steps: pulse type aerosol fire extinguishing method (fire extinguishing method of the patent)
By utilizing the pulse type fire extinguishing principle, after the aerosol generating agent 3 is ignited, the aerosol fire extinguishing agent is quickly filled in the whole fire extinguishing area within 1s, the pulse spraying of the aerosol fire extinguishing agent can generate a shock wave effect, so that the oxygen concentration in the fire extinguishing area is instantly reduced, meanwhile, the combustible steam, the combustible gas and the flame are separated by strong blast, and the temperature in a fire scene is taken away.
The third scheme is as follows: fire exploring tube type perfluorohexanone fire extinguishing method (belonging to common fire extinguishing method)
The fire detection pipe type perfluorohexanone fire extinguishing device uses perfluorohexanone as a fire extinguishing medium, a fire extinguishing agent conveying pipeline is not required to be arranged, the fire extinguishing agent can be released after the temperature sensing self-starting of the temperature sensing fire detection pipe is carried out, the flexible fire detection pipe can be conveniently arranged inside the battery box, and once a fire disaster occurs, the fire detection pipe near a fire point is heated and broken at the initial stage of the fire disaster, and the fire extinguishing agent is released immediately to extinguish the fire. The fire extinguishing device comprises a one-way valve, a fire detecting pipe, a medicament storage bottle and the like.
And the scheme is as follows: pipe network type dry powder extinguishing method (belonging to common extinguishing method)
Considering the complexity of a test model, the spraying dead angle is reduced as much as possible for the dry powder extinguishing agent, the dry powder extinguishing device is guaranteed to play the maximum effect in the environment, a structure similar to that of a pipe network type aerosol extinguishing device is adopted, a pipe network is surrounded along the inner part of a battery box, and the dry powder spraying dead angle is reduced.
And a fifth scheme: pipe network type water fire extinguishing method (belonging to common fire extinguishing method)
The reason for the structure and the arrangement of the structure is similar to that of the scheme four, and the description is not repeated.
II, test recording:
the first scheme is as follows:
the fire extinguishing density of the aerosol fire extinguishing device on the market at present is usually 100g/m3And the volume of the lithium battery box body for the test is 0.03m3Therefore, the minimum aerosol generating agent dosage of the aerosol fire extinguishing device used in the scene is calculated to be 3g (considering that the protection grade of the lithium battery box body is IP40, the opening rate of the lithium battery box body is relatively large, and the aerosol fire extinguishing agent is difficult to guarantee to generate a suffocation fire extinguishing effect on flame in a protected space, so that the used agent dosage is larger than 3g, and for convenience of recording and observation and rule summarization, the initial agent dosage is positioned by 5g), so that the actual dosage of the aerosol fire extinguishing device can be measured, and a test is carried out.
To summarize:
according to the test structure, due to the fact that a fire model is complex, the energy of the battery is high, the using amount of the aerosol fire extinguishing agent is far larger than that calculated theoretically, when the actually measured dose of the pipe network type aerosol fire extinguishing device reaches 40g, flames under the test model can be extinguished, and after the fire extinguishing agent is released, the re-burning phenomenon can occur.
Scheme II:
and (3) carrying out fire extinguishing tests by adopting aerosol generating agent powder and the same dosage as the first scheme, and observing the fire extinguishing effect by comparing the first scheme with the second scheme.
And (4) conclusion: according to the test structure, due to the fact that a fire model is complex, the energy of the battery is high, the using amount of the aerosol generating agent is far larger than that calculated theoretically, actually measured pulse type aerosol fire extinguishing device can extinguish flames under the test model when the agent amount reaches 20g, the phenomenon of re-ignition can occur after the fire extinguishing agent is released, when the agent amount is increased to 30g, the flames can be extinguished, re-ignition cannot occur, and the fire extinguishing speed is very high.
The third scheme is as follows:
in order to eliminate the factors which can cause fire extinguishing failure due to the fact that the aerosol fire extinguishing device is not suitable for the scenes, the perfluorohexanone fire extinguishing device is selected for comparative test, and the perfluorohexanone fire extinguishing density on the market is about 250ml/m3The volume of the box body is 0.03m3The calculated dosage should be 7.5ml, and also considering the particularity of the fire extinguishing model and the difficulty thereof, the actual dosage of the experiment should be larger than the theoretical value, and the initial dosage is positioned by 10ml for the convenience of recording observation and summarizing rules.
And (4) conclusion: fire extinguishing agents used in amounts far in excess of 20 times the theoretical amount are also difficult to extinguish.
And the scheme is as follows:
after multiple tests, the dry powder is easy to block the pipeline in the environment, and the dry powder is easy to accumulate between corners and battery gaps, so that the fire extinguishing effect cannot be achieved
And a fifth scheme:
after many tests, the electrolyte is easy to overflow along with water flow to form flowing fire, and the battery is exposed to water and then further short-circuited to explode, so that the battery is very dangerous.
In conclusion, the pulse type fire extinguishing method adopting the device of the utility model has better effect than other fire extinguishing methods.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (8)
1. A pulsed aerosol extinguishing device, including face guard (1) and bottom plate (2) that the combination formed hollow cavity, its characterized in that: place aerosol propellant (3) in the hollow cavity, pressure release hole (4) have been seted up on face guard (1) surface, face guard (1) lateral part and bottom plate (2) lateral part combination form discharge hole (5), aerosol propellant (3) one side and initiating line (6) contact of starting block.
2. A pulsed aerosol fire extinguishing apparatus according to claim 1, wherein: the aerosol generating agent (3) is aerosol generating agent powder or fragments.
3. A pulsed aerosol fire extinguishing apparatus according to claim 1, wherein: one side of the face mask (1) is hinged with one side of the base plate (2), and the other side of the face mask is connected with the other side of the base plate (2) through a screw (7).
4. A pulsed aerosol fire extinguishing apparatus according to claim 1, wherein: the adhesive tape (8) is pasted on the spray holes (5), the aluminum film (9) covers the pressure relief holes (4), and a moisture-proof pad is arranged at the position where the mask (1) and the bottom plate (2) are contacted.
5. A pulsed aerosol fire extinguishing apparatus according to claim 1, wherein: the outer side surface of the bottom plate (2) is provided with a double-faced adhesive tape layer (10).
6. A pulsed aerosol fire extinguishing apparatus according to claim 1, wherein: the hollow cavity formed by combining the face mask (1) and the bottom plate (2) is of a flat square box structure, and the length, width and height of the hollow cavity are 135mm, 95mm and 10mm respectively.
7. A pulsed aerosol fire extinguishing apparatus according to claim 1, wherein: the starting part is a thermosensitive wire structure or an electric ignition head structure.
8. A pulsed aerosol fire extinguishing apparatus according to claim 7, characterized in that: when the starting component is a thermosensitive wire structure, the triggering wire (6) is arranged in parallel with the side part of the aerosol generating agent (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922311667.4U CN211751978U (en) | 2019-12-20 | 2019-12-20 | Pulse type aerosol fire extinguishing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922311667.4U CN211751978U (en) | 2019-12-20 | 2019-12-20 | Pulse type aerosol fire extinguishing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451881A (en) * | 2020-12-10 | 2021-03-09 | 珠海格力电器股份有限公司 | Fire-fighting system structure of container |
| CN112933468A (en) * | 2021-03-17 | 2021-06-11 | 国网湖南省电力有限公司 | Intelligent fire extinguishing bomb for cable trench and application method thereof |
| CN114849122A (en) * | 2022-07-05 | 2022-08-05 | 北京菲思拓新材料股份有限公司 | Open-close type fire extinguishing device |
| CN115300847A (en) * | 2022-07-12 | 2022-11-08 | 湖北及安盾消防科技有限公司 | Fire extinguishing device |
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2019
- 2019-12-20 CN CN201922311667.4U patent/CN211751978U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451881A (en) * | 2020-12-10 | 2021-03-09 | 珠海格力电器股份有限公司 | Fire-fighting system structure of container |
| CN112933468A (en) * | 2021-03-17 | 2021-06-11 | 国网湖南省电力有限公司 | Intelligent fire extinguishing bomb for cable trench and application method thereof |
| CN112933468B (en) * | 2021-03-17 | 2023-09-12 | 国网湖南省电力有限公司 | Intelligent fire extinguishing bomb for cable duct and application method thereof |
| CN114849122A (en) * | 2022-07-05 | 2022-08-05 | 北京菲思拓新材料股份有限公司 | Open-close type fire extinguishing device |
| CN115300847A (en) * | 2022-07-12 | 2022-11-08 | 湖北及安盾消防科技有限公司 | Fire extinguishing device |
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Denomination of utility model: A pulse type aerosol fire extinguishing device Effective date of registration: 20231214 Granted publication date: 20201027 Pledgee: Bank of Hankou Limited by Share Ltd. Yichang branch Pledgor: Hubei and Andun Fire Technology Co.,Ltd. Registration number: Y2023980071183 |
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