CN111939498A - Non-pressure fire extinguisher boosting device and method for battery box - Google Patents
Non-pressure fire extinguisher boosting device and method for battery box Download PDFInfo
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- CN111939498A CN111939498A CN202010966013.XA CN202010966013A CN111939498A CN 111939498 A CN111939498 A CN 111939498A CN 202010966013 A CN202010966013 A CN 202010966013A CN 111939498 A CN111939498 A CN 111939498A
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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
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
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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
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/002—Apparatus for mixing extinguishants with water
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Abstract
A non-pressure fire extinguisher boosting device and a method for a battery box are disclosed, wherein a piston assembly is arranged between a fire extinguishing agent storage chamber and a first chemical reaction chamber, the piston assembly comprises a driving part, and one end of the driving part is provided with a rupture disc which is spaced from the first chemical reaction chamber; be equipped with the isolation assembly between first chemical reaction room and the second chemical reaction room, the inside solid-state medicament that is filled of first chemical reaction room, the inside liquid medicament that is filled of second chemical reaction room, the upset baffle makes liquid medicament and solid-state medicament keep apart. The first chemical reaction chamber and the second chemical reaction chamber are isolated through an isolation assembly in a daily state, the first chemical reaction chamber and the second chemical reaction chamber are communicated in a fire extinguishing state, and the communicated solid chemical agent and the liquid chemical agent perform exothermic chemical reaction; high-pressure water vapor is generated to burst the rupture disk, and the fire extinguishing agent is sprayed to extinguish fire by driving the piston assembly. The invention adopts the pre-pressureless storage, has no pressure leakage risk and high safety and stability coefficient.
Description
Technical Field
The invention belongs to the technical field of battery box fire extinguishing, and particularly relates to a non-pressure fire extinguisher boosting device and method for a battery box.
Background
With the rapid development of the electric automobile industry, the electrochemical energy storage technology is receiving wide attention. Among them, the lithium ion battery has been one of the most competitive electrochemical energy storage technologies in portable devices, electric vehicles and large-scale energy storage due to its high energy density. However, since a flammable organic solvent is used as a main component of the electrolyte and the intrinsic heat release characteristics of the lithium ion battery, lithium dendrites are generated under the condition of overcharge or quick charge, and thus safety accidents such as thermal runaway occur.
At present in order to deal with the emergence of battery thermal runaway, prior art scheme usually matches for thermal runaway early warning and puts out a fire, and the mode boosting that pressure tank stored pressure is adopted to traditional fire extinguishing scheme usually, and pressure tank occupation space is big, and storage pressure is high, has huge potential safety hazard in transportation and installation, and is unfavorable for long-term storage, easily causes pressure to reveal, and pressure is not enough during the use, puts out a fire inefficacy. The use temperature of part of non-pressure storage fire extinguishers (such as foam fire extinguishers) is required to be more than 5 ℃, and the requirements of vehicle specifications cannot be met; part of non-pressure-storage fire extinguishers are boosted by adopting a mode of obtaining pressure gas through powder explosion, the powder is flammable and explosive, and huge potential safety hazards exist; the high-pressure gas generated by igniting the gunpowder instantly often causes overlarge pressure, and if the pressure is not released in time, certain dangerousness is also generated; and the airflow is unstable, thereby influencing the use effect of the fire extinguishing device. And traditional extinguishing device adopts fire extinguishing agents such as carbon dioxide and heptafluoropropane more, and this kind of gaseous fire extinguishing agent is lower to the fire extinguishing efficiency of battery, and the cooling effect is poor.
Disclosure of Invention
Therefore, the invention provides the non-pressure fire extinguisher boosting device and method for the battery box, which have the advantages of no pressure leakage risk, good safety and stability and strong environment adaptability.
In order to achieve the above purpose, the invention provides the following technical scheme: a non-pressure type fire extinguisher boosting device for a battery box comprises a shell, wherein the interior of the shell is divided into a fire extinguishing agent storage chamber, a first chemical reaction chamber and a second chemical reaction chamber; a piston assembly is arranged between the fire extinguishing agent storage chamber and the first chemical reaction chamber, and one end of the piston assembly is provided with a rupture disc which is separated from the first chemical reaction chamber; an isolation assembly comprising an overturning partition plate is arranged between the first chemical reaction chamber and the second chemical reaction chamber, a solid medicament is filled in the first chemical reaction chamber, and a liquid medicament is filled in the second chemical reaction chamber;
the turnover partition plate enables the liquid medicament and the solid medicament to be separated, and the turnover partition plate changes the separation state through turnover so that the liquid medicament and the solid medicament are mixed.
As a preferable scheme of the non-pressure fire extinguisher boosting device for the battery box, the isolation assembly further comprises a driving motor, the driving motor is fixed on the outer side of the shell, and a driving shaft of the driving motor is connected with the overturning partition plate; the edge of the overturning partition plate is wrapped with a sealing ring.
As a preferable scheme of the non-pressure fire extinguisher boosting device for the battery box, the piston assembly comprises a driving part, and one end of the driving part is provided with a rupture disc for separating the first chemical reaction chamber;
the piston assembly further comprises a driving piston, the driving piston is connected with the driving part, and the edge of the driving piston is in contact with the inner wall of the shell.
Further, the interior of the driving part is hollow, and an end opening of the driving part is shielded by the rupture disk.
As a preferable scheme of the non-pressure type fire extinguisher boosting device for the battery box, the fire extinguishing agent storage chamber is filled with a perfluorohexanone fire extinguishing agent or a fire extinguishing agent containing fluorinated ketone substances; the liquid medicament is a mixed solution of absolute ethyl alcohol and pure water; the solid medicament is anhydrous aluminum chloride.
As a preferable scheme of the non-pressure type fire extinguisher boosting device for the battery box, a shell outside the fire extinguishing agent storage chamber is provided with a pressure relief opening, the pressure relief opening is connected with a pressure relief valve, and the pressure relief valve is electrically connected with a starting switch; the end part of the fire extinguishing agent storage chamber is provided with a fire extinguishing agent nozzle.
The invention also provides a boosting method of the non-pressure fire extinguisher for the battery box, which adopts the boosting device of the non-pressure fire extinguisher for the battery box, and the boosting device comprises the following steps: the method comprises the following steps that a first chemical reaction chamber and a second chemical reaction chamber are isolated through an isolation assembly, a solid medicament is filled in the first chemical reaction chamber, a liquid medicament is filled in the second chemical reaction chamber, and the liquid medicament and the solid medicament are isolated through an overturning partition plate of the isolation assembly;
under the state of fire extinguishing: changing the isolation state of the isolation assembly, enabling the first chemical reaction chamber and the second chemical reaction chamber to be communicated through overturning an overturning clapboard of the isolation assembly, mixing the solid medicament in the communicated first chemical reaction chamber with the liquid medicament in the second chemical reaction chamber, and generating exothermic chemical reaction; the chemical reaction generates high-pressure water vapor to burst the rupture disk, and the fire extinguishing agent in the fire extinguishing agent storage chamber is sprayed to extinguish fire through the piston assembly.
As a preferable scheme of the boosting method of the non-pressure fire extinguisher used for the battery box, the liquid medicament is a mixed solution of absolute ethyl alcohol and pure water; the solid medicament is anhydrous aluminum chloride; the chemical reaction comprises:
AlCl3＝Al3++3Cl-
AlCl3+3C2H5OH→Al(C2H5O)3+3HCl
Al(C2H5O)3+3C2H5OH→Al(OH)3+3C2H5-O-C2H5
Al(OH)3→AlOOH+H2O。
as a preferable scheme of the non-pressure fire extinguisher boosting method for the battery box, the mass ratio of the liquid medicament to the solid medicament is 0.3-15.
As a preferable scheme of the boosting method of the non-pressure fire extinguisher for the battery box, the volume ratio of the absolute ethyl alcohol to the pure water is 6: 4.
the technical scheme of the invention divides the interior of the shell into a fire extinguishing agent storage chamber, a first chemical reaction chamber and a second chemical reaction chamber; a piston assembly is arranged between the fire extinguishing agent storage chamber and the first chemical reaction chamber, the piston assembly comprises a driving part, and one end of the driving part is provided with a rupture disc which is spaced from the first chemical reaction chamber; be equipped with the isolation component between first chemical reaction room and the second chemical reaction room, the inside solid-state medicament that is filled of first chemical reaction room, the inside liquid medicament that is filled of second chemical reaction room, the isolation component is including the upset baffle, and the upset baffle makes liquid medicament and solid-state medicament keep apart. In the daily state: the first chemical reaction chamber and the second chemical reaction chamber are isolated through an isolation assembly, the isolation state of the isolation assembly is changed in a fire extinguishing state, the first chemical reaction chamber and the second chemical reaction chamber are communicated, and the communicated solid chemical agent in the first chemical reaction chamber and the communicated liquid chemical agent in the second chemical reaction chamber perform exothermic chemical reaction; the chemical reaction produces vapor to burst the piston assembly and to make the piston assembly drive the fire extinguishing agent inside the fire extinguishing agent storing chamber to spray fire. The invention adopts the pre-pressureless storage, has no pressure leakage risk, small occupied space, high safety and stability factor, long service life, strong environment adaptability and good use effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural diagram of a non-pressure type fire extinguisher boosting device for a battery box provided in an embodiment of the invention;
fig. 2 is a schematic view of a boosting method of a non-pressure fire extinguisher for a battery box provided in an embodiment of the present invention.
In the figure, 1, a housing; 2. a fire extinguishing agent storage chamber; 3. a first chemical reaction chamber; 4. a second chemical reaction chamber; 5. a piston assembly; 6. a drive section; 7. a rupture disk; 8. an isolation component; 9. turning over the partition board; 10. a drive piston; 11. a drive motor; 12. a seal ring; 13. a pressure relief port; 14. starting a switch; 15. the fire extinguishing agent nozzle.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a non-pressure type fire extinguisher boosting device for a battery box is provided, which comprises a housing 1, wherein the interior of the housing 1 is divided into a fire extinguishing agent storage chamber 2, a first chemical reaction chamber 3 and a second chemical reaction chamber 4; a piston assembly 5 is arranged between the fire extinguishing agent storage chamber 2 and the first chemical reaction chamber 3, and one end of the piston assembly 5 is provided with a rupture disc 7 which is spaced from the first chemical reaction chamber 3; an isolation assembly 8 comprising an overturning partition plate 9 is arranged between the first chemical reaction chamber 3 and the second chemical reaction chamber 4, a solid medicament is filled in the first chemical reaction chamber 3, and a liquid medicament is filled in the second chemical reaction chamber 4;
the inversion partition 9 isolates the liquid medicine and the solid medicine, and the inversion partition 9 changes the isolation state by inversion to mix the liquid medicine and the solid medicine. .
Specifically, the piston assembly 5 comprises a driving part 6, and one end of the driving part 6 is provided with a rupture disk 7 for separating the first chemical reaction chamber 3; the piston assembly 5 further comprises a driving piston 10, the driving piston 10 is connected with the driving part 6, and the edge of the driving piston 10 is contacted with the inner wall of the shell 1. The driving portion 6 is hollow, and an end opening of the driving portion 6 is shielded by the rupture disk 7. The isolation assembly 8 further comprises a driving motor 11, the driving motor 11 is fixed on the outer side of the shell 1, and a driving shaft of the driving motor 11 is connected with the overturning partition plate 9; the edge of the turnover partition board 9 is wrapped with a sealing ring 12. The fire extinguishing agent storage chamber 2 is provided with a pressure relief opening 13 on the outside casing 1, the pressure relief opening 13 is connected with a pressure relief valve, the pressure relief valve is electrically connected with a starting switch 14, and the end of the fire extinguishing agent storage chamber 2 is provided with a fire extinguishing agent nozzle 15.
Specifically, the driving portion 6 may be in a rod-like or tubular form, or may be in a tubular form capable of stretching, and the material of the driving portion 6 is preferably a material that does not react with the liquid drug or the solid drug, such as an ultra-high density polyethylene material.
Specifically, the bursting pressure of the rupture disk 7 is 1.5MPa, so that the fire extinguishing agent is sprayed quickly and stably, the atomization effect is enhanced, and the use effect of the fire extinguishing device is improved.
Specifically, the overturning partition plate 9 is of a disk-shaped stainless steel or aluminum alloy structure, the thickness of the overturning partition plate is 5-10 mm, the edge of the overturning partition plate 9 is provided with a sealing ring 12 for sealing, and the sealing grade is IP 67. The turnover partition plate 9 is connected with the driving motor 11, and the turnover partition plate 9 is controlled to turn over through the driving motor 11, so that the partition and the communication between the first chemical reaction chamber 3 and the second chemical reaction chamber 4 are controlled. When the reactor is in a daily storage state, the first chemical reaction chamber 3 and the second chemical reaction chamber 4 are separated, and when the reactor is in a working state, the first chemical reaction chamber 3 and the second chemical reaction chamber 4 are communicated.
Specifically, the liquid medicament is a mixed solution of absolute ethyl alcohol and pure water; the solid medicament is anhydrous aluminum chloride. The volume ratio range of the absolute ethyl alcohol is 0-100%, the freezing point range is 0-114.3 ℃, and the proportion of the absolute ethyl alcohol and the pure water can be adjusted according to the use environment and the use requirements, so that the ethanol water solutionThe freezing point reaches the target value. When the volume ratio of the absolute ethyl alcohol to the pure water is 6:4, the freezing point of the ethyl alcohol aqueous solution can reach-40 ℃. The anhydrous aluminum chloride is easily dissolved in water in the mixed solution, and the anhydrous aluminum chloride is dissolved in water to ionize anions and cations which are respectively Al3+And Cl-，AlCl3Form strong electrolyte, exist in ion form, and hydrolyze strongly, releasing a great deal of heat.
Because the inside anhydrous aluminium chloride that is filled of first chemical reaction room 3, the inside anhydrous alcohol and the pure water mixed solution that is filled of second chemical reaction room 4, after the upset of driving motor 11 drive upset baffle 9, at 360 within ranges, all can guarantee that liquid medicament and solid-state medicament mix, take place chemical reaction, realize 360 uses of no pressure formula.
Specifically, the fire extinguishing agent storage chamber 2 is filled with a perfluorohexanone fire extinguishing agent or a fire extinguishing agent containing fluorinated ketone substances. The fire extinguishing agent is liquid at normal temperature and convenient to store, and for the lithium ion battery, the fire extinguishing concentration of the perfluorohexanone is set to be 6.5-7.0%.
After lithium ion battery in the battery box takes place thermal runaway, driving motor 11 starts work, drive the upset of upset baffle 9, and then make liquid medicament and solid-state medicament mix and take place chemical reaction, strong hydrolysis, emit a large amount of heat simultaneously, produce a large amount of gases in the twinkling of an eye, when pressure reaches rupture disk 7's burst pressure, rupture disk 7 is opened, gas promotes drive piston 10 through hollow drive division 6, the fire extinguishing agent is by the ejection of quick stable fire extinguishing agent spout 15 that passes through, reach the purpose of putting out a fire. When the fire extinguishing agent is sprayed, the piston 10 is driven to reach the position of the starting switch 14, the pressure relief opening 13 is opened through the starting switch 14, the residual pressure is relieved through the pressure relief opening 13, the pressure is eliminated, and potential safety hazards are eliminated.
In one embodiment of the non-pressure fire extinguisher boosting device for the battery box, the non-pressure fire extinguisher boosting device is placed in an environment with the temperature of minus 40 ℃ for 3 hours, the volume of the first chemical reaction chamber 3 is 400ml, the volume of the second chemical reaction chamber 4 is 600ml, the volume of the absolute ethyl alcohol and pure water mixed solution of the second chemical reaction chamber 4 is 250ml, the volume ratio of the absolute ethyl alcohol to the pure water is 6:4, the mass of the absolute aluminum chloride is 150g, after the absolute ethyl alcohol and pure water mixed solution is mixed with the absolute aluminum chloride, the absolute aluminum chloride is strongly hydrolyzed, a large amount of heat is simultaneously released, a large amount of gas is generated, the instantaneous pressure value reaches more than 1.5MPa, the bursting disc 7 is opened, the gas drives the piston 10 through the driving part 6, and the fire extinguishing agent is rapidly and stably sprayed through the fire extinguishing agent nozzle 15, so that the fire extinguishing purpose is achieved.
With reference to fig. 2, the invention also provides a boosting method of a non-pressure fire extinguisher for a battery box, which adopts the boosting device of the non-pressure fire extinguisher for the battery box, and under the daily state: the first chemical reaction chamber 3 and the second chemical reaction chamber 4 are isolated by an isolation component 8, the first chemical reaction chamber 3 is filled with a solid medicament, the second chemical reaction chamber 4 is filled with a liquid medicament, and the liquid medicament and the solid medicament are isolated by an overturning partition plate 9 of the isolation component 8;
under the state of fire extinguishing: changing the isolation state of the isolation assembly 8, enabling the first chemical reaction chamber 3 and the second chemical reaction chamber 4 to be communicated through overturning the overturning partition plate 9 of the isolation assembly 8, mixing the solid chemical agent in the communicated first chemical reaction chamber 3 with the liquid chemical agent in the second chemical reaction chamber 4, and performing exothermic chemical reaction; the chemical reaction generates high-pressure water vapor to burst the rupture disk 7 and to spray the fire extinguishing agent inside the fire extinguishing agent storage chamber 2 through the piston assembly 5 to extinguish fire.
Specifically, the mass ratio of the liquid medicament to the solid medicament is 0.3-15. The volume ratio of the absolute ethyl alcohol to the pure water is 6: 4. the liquid medicament is a mixed solution of absolute ethyl alcohol and pure water; the solid medicament is anhydrous aluminum chloride; the chemical reaction comprises:
AlCl3＝Al3++3Cl-
AlCl3+3C2H5OH→Al(C2H5O)3+3HCl
Al(C2H5O)3+3C2H5OH→Al(OH)3+3C2H5-O-C2H5
Al(OH)3→AlOOH+H2O。
anhydrous aluminum chloride is very soluble in pure water, AlCl, in the mixed solution3Dissolving in water, ionizing to obtain anions and cations respectively Al3+And Cl-，AlCl3Form strong electrolyte, exist in ion form, and hydrolyze strongly, releasing a great deal of heat.
The anhydrous aluminum chloride also dissolves in the ethanol in the mixed solution and gives off a large amount of heat. The product is mainly the dehydration products of each grade of aluminum hydroxide, and is converted into aluminum hydroxide oxide (AlOOH) along with the temperature rise and the time extension. AlCl3Using AlCl in ethanol3Form of molecule dissolving, AlCl3The outermost layer of Al atoms in the molecule has 6 electrons, does not reach 8 electron stable structures, so that the Al atoms can also accept a lone electron pair to form a coordination bond, and ethanol (C)2H5OH) molecule has hydroxyl (-OH), and O atom in hydroxyl (-OH) forms 1 single bond (1 shared electron pair) with left and right C atom and H atom, so that there are two lone electron pairs left in O atom, when ethanol molecule (C)2H5OH) with one end of the O atom close to AlCl3When Al atom in the molecule is at one end, ethanol molecule (C)2H5OH) to unilaterally provide a lone pair of electrons to the Al atom to form a coordination bond, so that the outermost layer of the central Al atom has an 8-electron stable structure.
The technical scheme of the invention divides the interior of a shell 1 into a fire extinguishing agent storage chamber 2, a first chemical reaction chamber 3 and a second chemical reaction chamber 4; a piston assembly 5 is arranged between the fire extinguishing agent storage chamber 2 and the first chemical reaction chamber 3, the piston assembly 5 comprises a driving part 6, and one end of the driving part 6 is provided with a rupture disc 7 which is spaced from the first chemical reaction chamber 3; be equipped with isolation component 8 between first chemical reaction room 3 and the second chemical reaction room 4, the inside solid-state medicament that is filled of first chemical reaction room 3, the inside liquid medicament that is filled of second chemical reaction room 4, isolation component 8 is including upset baffle 9, and upset baffle 9 makes liquid medicament and solid-state medicament keep apart. In the daily state: the first chemical reaction chamber 3 and the second chemical reaction chamber 4 are isolated through an isolation component 8, the isolation state of the isolation component 8 is changed in a fire extinguishing state, the first chemical reaction chamber 3 and the second chemical reaction chamber 4 are communicated, and the communicated solid chemical agent in the first chemical reaction chamber 3 and the liquid chemical agent in the second chemical reaction chamber 4 perform exothermic chemical reaction; the chemical reaction generates water vapor to burst the rupture disk 7 to obstruct the piston assembly 5, so that the piston assembly 5 drives the fire extinguishing agent in the fire extinguishing agent storage chamber 2 to spray and extinguish fire. The invention adopts the pre-pressureless storage, has no pressure leakage risk, small occupied space, high safety and stability factor, long service life, low-temperature use (-40 ℃), strong environment adaptability, stable chemical property of the medicament, easy storage and no potential safety hazard; the rupture disk 7 ensures that the fire extinguishing agent is sprayed quickly and stably, enhances the atomization effect and improves the use effect of the fire extinguishing device.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A non-pressure type fire extinguisher boosting device for a battery box comprises a shell (1), and is characterized in that the interior of the shell (1) is divided into a fire extinguishing agent storage chamber (2), a first chemical reaction chamber (3) and a second chemical reaction chamber (4); a piston assembly (5) is arranged between the fire extinguishing agent storage chamber (2) and the first chemical reaction chamber (3), and one end of the piston assembly (5) is provided with a rupture disc (7) which is spaced from the first chemical reaction chamber (3); an isolation assembly (8) comprising an overturning partition plate (9) is arranged between the first chemical reaction chamber (3) and the second chemical reaction chamber (4), a solid medicament is filled in the first chemical reaction chamber (3), and a liquid medicament is filled in the second chemical reaction chamber (4);
the liquid medicament and the solid medicament are separated by the turnover partition plate (9), and the separation state is changed by the turnover partition plate (9) through turnover so that the liquid medicament and the solid medicament are mixed.
2. A pressureless fire extinguisher push aid for battery boxes according to claim 1, characterized in that the isolation assembly (8) further comprises a driving motor (11), the driving motor (11) is fixed on the outer side of the housing (1), and the driving shaft of the driving motor (11) is connected with the turnover partition (9); the edge of the overturning partition plate (9) is wrapped with a sealing ring (12).
3. A push-aid device for a pressureless fire extinguisher for a battery box according to claim 1, characterized in that the piston assembly (5) further comprises a driving part (6), one end of the driving part (6) is provided with a rupture disc (7) separating the first chemical reaction chamber (3);
the piston assembly (5) further comprises a driving piston (10), the driving piston (10) is connected with the driving part (6), and the edge of the driving piston (10) is in contact with the inner wall of the shell (1).
4. A pressureless fire extinguisher booster unit for battery boxes according to claim 3, characterized in that the inside of the driving part (6) is hollow, and the end opening of the driving part (6) is shielded by the rupture disk (7).
5. The non-pressure type fire extinguisher boosting device for battery box according to claim 1 is characterized in that the fire extinguishing agent storage chamber (2) is filled with perfluorohexanone fire extinguishing agent or fire extinguishing agent containing fluorinated ketone substance; the liquid medicament is a mixed solution of absolute ethyl alcohol and pure water; the solid medicament is anhydrous aluminum chloride.
6. The non-pressure fire extinguisher boosting device for the battery box according to claim 1, characterized in that a pressure relief opening (13) is formed in the housing (1) outside the fire extinguishing agent storage chamber (2), the pressure relief opening (13) is connected with a pressure relief valve, and the pressure relief valve is electrically connected with a starting switch (14); the end part of the fire extinguishing agent storage chamber (2) is provided with a fire extinguishing agent nozzle (15).
7. A method for boosting a non-pressure type fire extinguisher used for a battery box, using the non-pressure type fire extinguisher boosting apparatus for a battery box according to any one of claims 1 to 6,
in the daily state: the method comprises the following steps that a first chemical reaction chamber (3) and a second chemical reaction chamber (4) are isolated through an isolation assembly (8), a solid medicament is filled in the first chemical reaction chamber (3), a liquid medicament is filled in the second chemical reaction chamber (4), and the liquid medicament and the solid medicament are isolated through an overturning partition plate (9) of the isolation assembly (8);
under the state of fire extinguishing: changing the isolation state of the isolation assembly (8), enabling the first chemical reaction chamber (3) and the second chemical reaction chamber (4) to be communicated through overturning of an overturning clapboard (9) of the isolation assembly (8), and mixing the solid medicament in the communicated first chemical reaction chamber (3) with the liquid medicament in the second chemical reaction chamber (4) to generate exothermic chemical reaction; the chemical reaction generates high-pressure water vapor to burst the rupture disk (7), and the fire extinguishing agent in the fire extinguishing agent storage chamber (2) is sprayed to extinguish fire through the piston assembly (5).
8. The boosting method of a pressureless fire extinguisher for battery box according to claim 7, wherein the liquid agent is a mixed solution of absolute ethyl alcohol and pure water; the solid medicament is anhydrous aluminum chloride; the chemical reaction comprises:
AlCl3＝Al3++3Cl-
AlCl3+3C2H5OH→Al(C2H5O)3+3HCl
Al(C2H5O)3+3C2H5OH→Al(OH)3+3C2H5-O-C2H5
Al(OH)3→AlOOH+H2O。
9. the boosting method of a non-pressure fire extinguisher used for a battery box according to claim 8, wherein the mass ratio of the liquid medicament to the solid medicament is 0.3-15.
10. The boosting method of a pressureless fire extinguisher used for a battery box according to claim 8, wherein the volume ratio of the absolute ethyl alcohol to the pure water is 6: 4.
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| CN202010966013.XA CN111939498A (en) | 2020-09-15 | 2020-09-15 | Non-pressure fire extinguisher boosting device and method for battery box |
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| CN202010966013.XA CN111939498A (en) | 2020-09-15 | 2020-09-15 | Non-pressure fire extinguisher boosting device and method for battery box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112535045A (en) * | 2020-12-08 | 2021-03-23 | 秦皇岛小马物联网科技开发有限公司 | Carbon dioxide device is used to greenhouse vegetable |
| CN114618102A (en) * | 2022-03-28 | 2022-06-14 | 江苏城乡建设职业学院 | Microcapsule extinguishing device |
-
2020
- 2020-09-15 CN CN202010966013.XA patent/CN111939498A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112535045A (en) * | 2020-12-08 | 2021-03-23 | 秦皇岛小马物联网科技开发有限公司 | Carbon dioxide device is used to greenhouse vegetable |
| CN114618102A (en) * | 2022-03-28 | 2022-06-14 | 江苏城乡建设职业学院 | Microcapsule extinguishing device |
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