WO2020111677A1

WO2020111677A1 - Fire-extinguishing encapsulation device

Info

Publication number: WO2020111677A1
Application number: PCT/KR2019/016187
Authority: WO
Inventors: 강태영; 박상기
Original assignee: (주) 비에이에너지
Priority date: 2018-11-26
Filing date: 2019-11-22
Publication date: 2020-06-04
Also published as: KR102123819B1; KR20200061814A

Abstract

The present invention relates to a fire-extinguishing encapsulation device comprising phase-transition microcapsules, thermal shock fracture-type microcapsules, and first and second film layers comprising therein the phase-transition microcapsules and the thermal shock fracture-type microcapsules. Thus, according to the present invention, when a fire occurs, the fire can be extinguished more rapidly.

Description

Encapsulation device for fire extinguishing

The present invention relates to an encapsulation device for extinguishing a fire, and more particularly, to an encapsulation device for extinguishing a fire that can extinguish a fire more quickly when a fire occurs.

In general, ESS (Energy Storage System) refers to a storage device that stores excess power generated by a power plant and transmits it temporarily when power is insufficient. In recent years, large-scale ESS devices have been constructed in small sizes to accommodate general customers such as buildings, factories, and homes. In many cases, it is used for blackout preparation or peak power reduction.

Recently, as interest in new and renewable energy has rapidly increased due to the imbalance in power supply and demand, development of technologies that utilize the new and renewable energy through ESS to store the generated electricity and utilize it at the required time has been continuously developed. have.

In particular, the ESS market continues to grow in recent years as the installation of ESS is mandatory in public buildings that are newly built, and the installation of ESS in energy savings is also increasing in private buildings.

When installing an ESS in a building, etc., the battery rack that stores energy in the battery rack of the ESS, the BMS that manages the battery, and the PCS that converts power are accommodated, and the battery rack is accommodated in a basement or a certain space such as outdoors. To be operated.

At this time, in the summer when the external temperature is high, the temperature of the ESS is excessively increased due to a lot of heat generated from the battery of the ESS, thereby increasing the risk of fire, causing an ESS error, and deteriorating the performance of the battery. However, at present, only heating and cooling of the entire space in which the ESS is accommodated is performed, so it is difficult to efficiently and stably operate the ESS because cooling and heat retention for each of the batteries accommodated in the battery rack are not properly performed.

ESS has a high risk of fire due to the generation of a lot of heat, but fire fighting equipment is not properly equipped for each battery rack unit.

In addition, it is a situation in which a product capable of preventing fire is required for a device that is difficult to install an air conditioning system for heat management and a fire fighting facility due to spatial constraints.

Korean Patent No. 10-1229411 relates to a battery pack for oxidation and fire prevention and a method for manufacturing the same, and the battery pack case includes an upper case, a lower case, and a plurality of side wall cases. One of the side wall cases is provided with a gas supply port and a gas discharge port for filling the gas for oxidation and fire protection into the interior space. In addition, each of the side wall cases is formed with a coupling portion that engages the adjacent side wall cases. The coupling portion extends at both ends of the side wall case at an angle. The coupling portion forms a coupling surface that mutually couples adjacent side wall cases. O-rings are installed in the vertical direction on the coupling surface. Gaskets are respectively installed on the upper and lower surfaces of the combined sidewall cases, and are characterized by being combined with the upper and lower cases.

Korean Patent No. 10-1706717 relates to a battery pack fire prevention device of an energy storage system, which is built in a container, and is formed so that one side is opened to enter the battery module, and a plurality of battery modules are stacked up and down. It is arranged toward the trays arranged and the battery modules stacked on the tray, and measures the temperatures of the plurality of battery modules and receives the signals output from the heat sensing means and the heat sensing means for outputting signals to the control unit when an abnormality occurs. A control unit for outputting a control signal to cut off the power supplied to the battery module and a power supply unit for selectively supplying power to each battery module according to the control signal of the control unit and the other side of the tray, a plurality of It is formed up and down so that the blocking plates are spaced apart from each other, and when the fire occurs in the plurality of battery modules, the ends of each blocking plate enter the inside of the tray by the movement force of the actuator operated by the controller, and the stacked plurality of battery modules And an actuator disposed on the other side of the blocking block to partition the block, and an actuator having a rod that moves the blocking block to the tray side when a signal from the control unit is applied. The blocking block is formed on one side. A plurality of blocking plates are formed to be spaced apart so as to correspond to the separation distance of the battery modules arranged in the tray, and a plurality of blocking plates respectively coupled to insertion holes formed on the other side of the tray so that the end can enter the inside of the tray, and on one side the It characterized in that the end of the blocking plate is connected and is configured as a support plate that is connected to the other side to be interlocked with the rod.

[Advanced technical literature]

[Patent Document]

(Patent Document 0001) Korean Registered Patent No. 10-1229411 (20130129)

(Patent Document 0002) Korean Registered Patent No. 10-1706717 (20170208)

One embodiment of the present invention is to provide an encapsulation device for fire extinguishing, including a heat shock destructive microcapsule that emits an extinguishing material in the event of a fire.

One embodiment of the present invention is to provide an encapsulation device for fire extinguishing that includes a phase change microcapsule having excellent heat storage function.

One embodiment of the present invention is to provide an encapsulation device for fire extinguishing that can quickly extinguish a fire in the event of a fire in the device by applying a film layer including a heat shock-destructive microcapsule and a phase change microcapsule.

Among the embodiments, the encapsulation device for fire extinguishing includes first and second film layers including a phase change microcapsule, a heat shock fracture type microcapsule, the phase change microcapsule, and the heat shock fracture type microcapsule therein. do.

The phase change microcapsule and the heat shock fracture type microcapsule are characterized in that they are distributed between the first and second film layers at a specific density so as not to concentrate more than a certain criterion on any one part.

The phase change microcapsule and the heat shock fracture type microcapsule are characterized in that they are arranged in a ratio of (1 cm ² ) 1 or more and 100 or less: 1 per unit area.

The thermal shock breaking type microcapsule includes an external protective film that cracks at a specific temperature or higher. In addition, it is characterized in that it contains a fire-extinguishing type microcapsule filled in the inside, and the extinguishing material released to the outside according to the occurrence of the crack.

The phase change microcapsules are 1-dodecanol, paraffin oil, formalinic acid, lactic acid, methyl palmitate, phenylone, dokasil bromide, caprylone, phenol, heptadecanone, 1-cyclohexyloctadecane, 4-heptade Canon, P-zolidine, cyanamide, methyl eicosanate, 3-heptadecanone, 2-heptadecanone, hydrocinnamic acid, cetyl alcohol, A-neptylamine, camphor, O-nitro Aniline, 9-heptadecanone, thymol, methyl behenate, diphenyl amine, P-dichloro benzene, oxoleate, hypoic acid, O-xylene dichloride, B-chloroic acid, chloroacetic acid, nitronaphthalene, trimiristin, Heptowndecyl Acid, A-Chloroic Acid, Bee Wax, Glycolic Acid, P-Bromo Phenolic, Azobenzene, Acrylic Acid, Dinto Toluene (2,4), Phenyl Acetic Acid, Thiosinamine, Brocamphor, Duren, Benzyl , Methyl bromide, alpha naphthol, glutaric acid, p-xylene dichloride, catechol, quinone, acetanilide, succinic anhydride, benzoic acid, styrene, or derivatives thereof. It is characterized in that when the external temperature rises, the corresponding heat is temporarily absorbed, and when the external temperature falls below a second temperature, the temporarily absorbed heat is released.

The encapsulation device for fire extinguishing is characterized in that it is used to wrap a battery rack containing a battery therein.

The disclosed technology can have the following effects. However, since the specific embodiment does not mean that all of the following effects should be included or only the following effects are included, the scope of rights of the disclosed technology should not be understood as being limited thereby.

An encapsulation device for extinguishing a fire according to an embodiment of the present invention may include a heat shock-destructive microcapsule that releases an extinguishing material in the event of a fire.

The encapsulation device for fire extinguishing according to an embodiment of the present invention may include a phase change microcapsule having excellent heat storage function.

The encapsulation device for extinguishing a fire according to an embodiment of the present invention can quickly extinguish a fire in the event of a fire in the device by applying a film layer including a thermal shock breaking type microcapsule and a phase change microcapsule.

1 is a view schematically showing the configuration of an encapsulation device for extinguishing a fire according to an embodiment of the present invention.

2 is a cross-sectional view schematically showing a film layer included in an encapsulation device for extinguishing a fire according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view schematically showing the thermal shock fracture type microcapsule in FIG. 2.

[Description of codes]

100: fire extinguishing encapsulation device 110, 200: film layer

110a, 200a: phase transition microcapsules

110b, 200b, 300: heat shock fracture type micro capsule

120: battery cell 202: first film layer

204: second film layer 310: outer protective film

320: extinguishing material

Since the description of the present invention is merely an example for structural or functional description, the scope of the present invention should not be interpreted as being limited by the examples described in the text. That is, since the embodiments can be variously changed and have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing technical ideas. In addition, the purpose or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such an effect, and the scope of the present invention should not be understood as being limited thereby.

Meanwhile, the meaning of terms described in the present application should be understood as follows.

Terms such as "first" and "second" are for distinguishing one component from other components, and the scope of rights should not be limited by these terms.

For example, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

When a component is said to be "connected" to another component, it may be understood that other components may exist in the middle, although they may be directly connected to the other component. On the other hand, when a component is said to be "directly connected" to another component, it should be understood that no other component exists in the middle. On the other hand, other expressions describing the relationship between the components, that is, "between" and "immediately between" or "neighboring to" and "directly neighboring to" should be interpreted similarly.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as “comprises” or “have” are used features, numbers, steps, actions, components, parts or the like. It is to be understood that a combination is intended to indicate the existence, and does not preclude the existence or addition possibility of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

In each step, the identification code (for example, a, b, c, etc.) is used for convenience of explanation. The identification code does not describe the order of each step, and each step clearly identifies a specific order in context. Unless stated, it may occur in a different order than specified. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

All terms used herein have the same meaning as generally understood by a person skilled in the art to which the present invention pertains, unless otherwise defined. The terms defined in the commonly used dictionary should be interpreted as being consistent with the meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present application.

Referring to FIG. 1, the encapsulation device 100 for fire extinguishing may include a film layer 110 including a phase change microcapsule 110a and a thermal shock breaking microcapsule 110b on an inner wall.

In one embodiment, the encapsulation device 100 for fire extinguishing may be used to wrap a battery rack of an ESS (Energy Storage System).

ESS is a device that can store surplus-produced electricity or make use of renewable energy to use the produced electricity at the required time. It stores idle power at times when electricity demand is low and supplies electricity in times of high demand. It is a system that wants to use power stably. Here, the encapsulation device 100 for fire extinguishing in the ESS has been described as an example, but one embodiment of the present invention is not limited to this, and the air conditioning system for heat management and the fire extinguishing system capable of extinguishing in the event of a fire due to spatial constraints It can be applied in a small enclosure that is difficult to install.

The encapsulation device 100 for fire extinguishing may include a plurality of battery cells 120. The plurality of battery cells 120 may be disposed adjacent to each other in a horizontal direction in the encapsulation device 100 for fire extinguishing. In addition, although not shown, the plurality of battery cells 120 may be arranged to be stacked in the vertical direction in the encapsulation device 100 for fire extinguishing. Here, the intervals between the battery cells 120 may be the same or may be arranged at different intervals.

The film layer 110 of the encapsulation device 100 for fire extinguishing includes a phase change microcapsule 110a. Here, the phase change microcapsule 110a is made of phase changing materials (PCM).

The phase change microcapsule 110a including the phase change material temporarily absorbs the corresponding heat when the external temperature rises above the first temperature in a high temperature environment. On the other hand, when the external temperature falls below the second temperature in a low temperature environment, the absorbed heat is released temporarily.

More specifically, when the temperature in the encapsulation device 100 for fire extinguishing rises to a higher temperature than the first temperature, the phase change material of the phase change microcapsule 110a temporarily absorbs external heat, thereby encapsulating the fire. The temperature in the migration device 100 may be lowered. In addition, when the temperature in the encapsulation device 100 for fire extinguishing falls to a low temperature below the second temperature, the phase change material of the phase change microcapsule 110a has a temperature in the encapsulation device 100 for fire extinguishing more than the first temperature. The temperature in the encapsulation device 100 for fire extinguishing may be increased by releasing heat that was temporarily absorbed when the temperature rises.

Therefore, the temperature in the encapsulation device 100 for fire extinguishing can be kept constant by the heat storage and heat generation function of the phase change microcapsule 110a reacting according to the external temperature, and accordingly, the encapsulation device for fire extinguishing ( 100) can improve the insulation effect.

In addition, the film layer 110 of the encapsulation device 100 for fire extinguishing includes a thermal shock breaking type microcapsule 110b. The thermal shock breaking type microcapsule 110b includes an external protective film that cracks and heat deforms at a specific temperature or higher. In addition, an extinguishing material discharged to the outside according to cracks and thermal deformation of the external protective film is filled therein.

In the heat shock-destructive microcapsule 110b, a crack or heat deformation is generated in an external protective film when a battery fire occurs over a certain temperature, and when the crack or heat deformation occurs, the extinguishing material filled therein is released to the outside. Carbon dioxide (CO2), water (H2O), and oxides are generated as pyrolysis occurs as the extinguishing material is released to the outside to prevent the propagation of the flame or to prevent the propagation of the fire by preventing the propagation of the flame by forming a fire-prevention film on the surface in contact with the flame I can do it. That is, when a fire occurs in the encapsulation device 100 for fire extinguishing, it is possible to rapidly extinguish the fire while the extinguishing material in the heat shock destructive microcapsule 110b is released.

2 is a cross-sectional view schematically showing a film layer included in an encapsulation device for extinguishing a fire according to an embodiment of the present invention, provided on an inner wall of an encapsulation device for extinguishing a fire ('100' in FIG. 1) The functional film layer ('110' in FIG. 1) is shown in more detail.

Referring to FIG. 2, the film layer 200 includes a first film layer 202 and a second film layer 204.

The first film layer 202 and the second film layer 204 include a phase change microcapsule 200a and a thermal shock breaking type microcapsule 200b. The phase change microcapsule 200a is filled with a phase change material (PCM phase change material). As the phase change material, paraffin (CnH2n+2) having 13 to 28 carbon atoms, fatty acid (CH ₃ (CH ₂ )2nCOOH), or a mixture thereof may be used, or one or more selected from the phase change material. good. For example, the melting point of octadecane is 28°C, which can be selected as a phase change material that reacts near room temperature. Besides, tetradecan has a melting point of 55°C, pentadecan has 10°C, and octacosan has a melting point of 61°C, so it is possible to select a phase change material at various temperatures. Can be used.

In addition, the phase change material may control heat by absorbing or releasing heat while changing the phase from a specific temperature to a solid and a liquid. This phase change material is generally used in a form encapsulated in a capsule to maintain the shape according to the phase change.

Phase change materials include 1-dodecanol, paraffin oil, formalinic acid, lactic acid, methyl palmitate, phenylone, dokasyl bromide, caprylone, phenol, heptadecanone, 1-cyclohexyloctadecane, 4-heptadecanone, P-zolidine, cyanamide, methyl eicosanate, 3-heptadecanone, 2-heptadecanone, hydrocinnamic acid, cetyl alcohol, A-neptylamine, kampen, O-nitroaniline, 9-heptadecanone, thymol, methyl behenate, diphenyl amine, P-dichlorobenzene, oxoleate, hypoic acid, O-xylene dichloride, B-chloroic acid, chloroacetic acid, nitronaphthalene, trimiristin, heptown Decyl acid, A-chloro acid, bee wax, glycolic acid, P-bromo phenol, azobenzene, acrylic acid, ditotoluene (2,4), phenyl acetic acid, thiocinamine, bromcamphor, duren, benzyl, methyl It can be formed of any one selected from brombrezoate, alpha naphthol, glutaric acid, p-xylene dichloride, catechol, quinone, acetanilide, succinic anhydride, benzoic acid, stiven or derivatives thereof.

The phase change microcapsule 200a may additionally include a surface protective film (not shown) surrounding the edge. Since the phase change material inside the phase change microcapsule 200a is sensitive to temperature changes and may change from a solid to a liquid when the temperature rises, the surface protective film surrounding the surface of the phase change microcapsule 200a can be selected from various polymers. The material that can secure thermal stability can be selected to safely collect the phase change material. When the thickness of the surface protective film (not shown) is thinner than 50 nm, the capsule cannot be stabilized, and when the thickness of the surface protective film (not shown) is thicker than 500 nm, heat transferred by the surface protective film (not shown) is phase-transfered in the capsule. Since the time to reach the material becomes longer, the thickness of the surface protective film (not shown) is preferably 50 to 500 nm.

The surface protective film (not shown) surrounding the phase change microcapsule 200a is polyurethane, polyurea, polycarbonate, epoxy, polystyrene, polyethylene, polypropylene, polyester, polyether, polyvinyl alcohol, acrylic resin, polyamide , Polymethylmethacrylate, ethylene/vinyl acetate copolymer, melamine resin, cellulose, isobornyl methacrylate and (meth)acrylic acid copolymer, nylon, gelatin, formaldehyde, melanin and their (co)polymers Etc. may include one or more mixtures.

It is preferable to use a phase transition microcapsule 200a having a size of 1 to 100 μm. At this time, if the size of the phase change microcapsule 200a is smaller than 1 μm, the size of the microcapsule is small, so it is difficult to maximize the dispersion effect when coating the surface protective film (not shown). On the other hand, if the size of the phase change microcapsule 200a is greater than 100 μm, the phase change may affect the stability and polymer properties of the microcapsule 200a.

More specifically, when the temperature in the encapsulation device for fire extinguishing ('100' in FIG. 1) rises to a higher temperature than the first temperature, the phase change material of the phase change microcapsule 200a temporarily absorbs external heat, The temperature in the encapsulation device for fire extinguishing ('100' in FIG. 1) may be lowered. In addition, when the temperature in the encapsulation device for fire extinguishing ('100' in FIG. 1) falls to a lower temperature than the second temperature, the phase change material of the phase change microcapsule 200a is an encapsulation device for fire extinguishing (' When the temperature in the 100') rises to a high temperature above the first temperature, the heat absorbed temporarily can be released to increase the temperature in the encapsulation device for fire extinguishing ('100' in FIG. 1).

Therefore, the temperature in the encapsulation device for fire extinguishing ('100' in FIG. 1) can be kept constant by the heat storage and heat generation function of the phase change microcapsule 200a that reacts according to the external temperature, and accordingly, for fire extinguishing It is possible to improve the thermal insulation effect in the encapsulation device ('100' in FIG. 1).

In addition, the encapsulation device for fire extinguishing according to an embodiment of the present invention includes a thermal shock breaking type microcapsule 200b. The thermal shock breaking type microcapsule 200b includes an external protective film that cracks and thermally deforms at a specific temperature or higher. In addition, an extinguishing material discharged to the outside according to cracks and thermal deformation of the external protective film is filled therein. The thermal shock breaking type microcapsule 200b is cracked or thermally deformed on an external protective film when a battery fire occurs over a certain temperature, and when the crack or thermally deformed, the extinguishing material filled therein is released to the outside.

Specifically, referring to FIG. 3 below, the configuration of the thermal shock breaking type microcapsule is as follows.

3 is a cross-sectional view schematically showing a microcapsule of thermal shock destruction included in an encapsulation device for extinguishing a fire according to an embodiment of the present invention.

Referring to FIG. 3, the thermal shock breaking type microcapsule 300 includes an outer protective layer 310 surrounding the rim. When the temperature in the encapsulation device for fire extinguishing (FIG. 1 '100') exceeds a certain temperature, a crack or heat deformation occurs. In addition, the extinguishing material 320 is filled in the outer protective layer 310 of the thermal shock breaking type microcapsule 300. When a crack or heat deformation occurs in the outer protective layer 310 at a specific temperature or higher, the extinguishing material 320 penetrates the outer protective layer 310 and is discharged to the outside.

The shape of the heat shock-destructive microcapsule 300 containing the extinguishing material 320 is shown in the example formed in a spherical shape in FIGS. 1 to 3, but is not limited thereto and may have various shapes, preferably spherical, It may be oval, cylindrical, or polygonal. The size of the thermal shock breaking type microcapsule 300 may be about 001 to 10 μm, more preferably about 01 to 5 μm.

The thermal shock destruction type microcapsule 300 containing the extinguishing material 320 is destroyed when the outer protective film 310 of the thermal shock destruction type microcapsule 300 is destroyed when the external temperature rises above a certain temperature. As the 320 is released to the outside, the external protective film 310 can control the temperature at which the external protective film 310 is dissolved or melted according to the type of the polymer constituting the external protective film 310, and controls the thickness and size of the external protective film 310. By doing so, the rate of discharge of the extinguishing material can also be controlled. Therefore, the synthetic resin and the thickness and size of the outer protective film 310 of the thermal shock-destructive microcapsule 300 containing the extinguishing material 320 are the method of using and the environment of the thermal shock-destructive microcapsule 300 Can be adjusted accordingly.

The outer protective film 310 serves to protect the surface of the thermal shock-destructive microcapsule 300 at normal times, but when a fire occurs and the ambient temperature rises above a certain temperature, the extinguishing material inside the outer protective film 310 (320) ) Is released to the outside, acting as a barrier between the flame and the combustible material, thereby extinguishing the fire early or preventing the fire from spreading.

The outer protective film 310 of the thermal shock breaking type microcapsule 300 is a hydrolysis product of silicon-based gal=alkoxysilane, gelatin or a derivative thereof, urea resin, resorcinol resin, melamine resin, phenol Resin and polyvinyl acetal, polyvinyl alcohol, polyvinyl acetate, epoxy-based, latex, acrylic, archide, glycemic resin, gel compound of alkoxysilane, hydrolysis condensate, polyurea, polyurethane or combinations thereof It includes any one selected.

The extinguishing material 320 filled in the thermal shock breaking type microcapsule 300 may be HFC-based materials such as trifluoromethane (HFC-23), trifluoroethane (HFC-125), heptafluoropropane (GFC-227ea), or Any combination of these may be included. The HFC-based material is one of gas-based extinguishing agents, and is an alternative material in which hydrogen is added to the FC-based material. Since it does not contain bromine (Br) and chlorine (Cl), the ozone depletion index (ODP) is close to 0, has low toxicity, and has physical extinguishing.

In addition, the fire extinguishing material 320 when the crack and heat deformation occurs on the outer protective film 310 is discharged to the outside to extinguish the fire by blocking the air in the encapsulation device for fire extinguishing ('100' in Figure 1) I can do it.

The extinguishing material 320 may be a self-extinguishing property, and the extinguishing material 320 has a property that the flame naturally extinguishes due to chemical and physical changes when it comes into contact with a fire. Specifically, when a fire occurs and the extinguishing material 320 is in contact with the flame, the extinguishing material 320 is thermally decomposed to generate carbon dioxide (CO ₂ ), water (H ₂ O), and oxide to prevent the propagation of the flame or contact the flame. By forming a fire-prevention film on the surface, it is possible to extinguish the fire by interfering with the spread of the flame.

Digestible material 320 is a fluorine-containing ketone: dedecafuro 2-methylpentane-3-one, CF3CF2C(O)CF(CF3)2, (CF3)2CFC(O)CF(CF3)2, purple Luorocyclohexanone, brominated alkanes (CnH2n+2-xBrx, n=1 to 3, x=2 or 3): dibromomethane, 1,1,2,2-tetrafluordibromethane, 1,1,2 -triftortrichlorethane, 2-iodo-1,1,1,2,3,3,3-heptafluoropropane, 1,1,2,2-tetrafluorodibromoethane, 1,1,2-trifluorotrichloroethane, 2-iodine -1,1,1,2,3,3,3-heptafluoropropane, 1,1,2,2-tetrafluoroethane, 1,1-difluoro-2,2,2-trichloroethane, 1,2 -difluorotrichloroethane, 1,1-difluoro-1,2-dichloroethane, 1,2-difluoro-1,1-dichloroethane, 1,1-difluoro-1-chloroethane, 1-fluoro-1,1-dichloroethane, 1-fluoro -2-chloroethane, pentafluorochloroethane, 1,1-difluorotetrachloroethane, 1,2-difluorotetrachloroethane, or a combination thereof.

In addition, the extinguishing material 320 may include a reaction product of ammonium phosphate ((NH4)3PO4), sodium hydrogen carbonate, potassium hydrogen carbonate, and potassium hydrogen carbonate.

Specifically, some extinguishing materials may cause the following reaction in the event of a fire.

(1) 2NaHCO ₃ → Na2CO ₃ + CO ₂ + H2O (100℃ or less)

(2) CaCO ₃ → CaO+ CO ₂ (700°C to 800°C)

(3) 2KHCO ₃ → K2CO ₃ + CO ₂ + H ₂ O (100°C to 120°C)

(4) NH ₄ 4H ₂ PO ₄ → HPO ₃ + NH ₃ + H ₂ O (150℃)

(5) 2H ₃ PO ₄ → H ₄ P ₂ O ₇ + H ₂ O (215℃)

(6) H ₄ P ₂ O ₇ → 2HPO ₄ + H ₂ O (300℃)

(7) Mg(OH) ₂ → MgO + H ₂ O (300℃)

The thermal decomposition reaction of the extinguishing material 320 provides a smothering effect, a cooling effect, and other extinguishing effects to directly extinguish the surrounding fire. When the film layer coated with the heat shock-destructive microcapsule 300 including the extinguishing material 320 is applied, it is possible to obtain an effect of self-extinguishing without propagation to the surroundings even if a fire occurs.

Referring to FIG. 2 again, the first film layer 202 and the second film layer at a specific density so that the phase change microcapsule 200a and the heat shock fracture type microcapsule 200b are not concentrated over a specific criterion in any one part (204). For example, it may be distributed at a ratio of 1 or more and 100 or less: 1 per unit area (1 cm ² ). It is preferable that the phase change microcapsules 200a and the thermal shock breaking type microcapsules 200b are uniformly distributed so as to be properly mixed with each other. It may be distributed alternately as shown in Figure 2, but is not necessarily limited to this.

Here, the first film layer 202 and the second film layer 204 may be formed of the same material, or may be formed of different materials. At this time, a method for filling the phase change microcapsules 200a and the thermal shock fracture type microcapsules 200b inside the first film layer 202 and the second film layer 204 is as follows.

First, the first film layer 202 is formed. Then, the phase change microcapsule 200a and the heat shock fracture type microcapsule 200b are sprayed to fix the phase change microcapsule 200a and the heat shock fracture type microcapsule 200b on top of the first film layer 202. .

The phase change microcapsule 200a and the thermal shock fracture type microcapsule 200b have a specific density distribution so as not to concentrate more than a specific criterion on any one part. The phase change microcapsules 200a and the heat shock fracture type microcapsules 200b are preferably uniformly distributed so as to be properly mixed with each other, and may be alternately distributed as shown in FIG. 2. At this time, the phase change microcapsule 200a and the thermal shock breaking type microcapsule 200b may be sprayed sequentially or simultaneously. In the case of sequentially spraying, the order of spraying is not limited.

Thereafter, a second film layer 204 is formed on the first film layer 202 to which the phase change microcapsule 200a and the heat shock fracture type microcapsule 200b are fixed. The second film layer 204 is integrally combined with the first film layer 202 and consequently, the phase change microcapsules 200a and the thermal shock breaking type micro within the first film layer 202 and the second film layer 204 are formed. The capsule 200b is made to be filled. At this time, the post-treatment process may be further performed so that the first film layer 202 and the second film layer 204 are completely in close contact.

One embodiment of the present invention is not limited to this, and after the first film layer 202 and the second film layer 204 are sequentially formed, the phase transition within the first film layer 202 and the second film layer 204 is performed. It can also be formed by a method of injecting the microcapsule 200a and the thermal shock breaking type microcapsule 200b. At this time, the first film layer 202 and the second film layer 204 are not sequentially formed, but only one film layer is formed, and then the phase change microcapsules 200a and the thermal shock fracture microcapsules 200b are injected. You can also proceed in the same way.

The encapsulation device for fire extinguishing according to the above-described exemplary embodiment of the present invention may improve heat storage and heat insulation performance during normal use according to a phase change microcapsule, thereby facilitating thermal management of a battery included in a battery rack. In addition, the encapsulation device for fire extinguishing has improved the functions of air blocking, non-flammable, flame retardant, heat reflection, and moisture blocking by applying the heat shock-destructive microcapsules, which may result in fire caused by the batteries in the battery rack. When the air is blocked, it is possible to quickly extinguish the fire.

Although described above with reference to preferred embodiments of the present invention, those skilled in the art variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You can understand that you can.

Claims

Phase change microcapsules;

Heat shock fracture microcapsules; And

An encapsulation device for fire extinguishing, comprising first and second film layers including the phase change microcapsule and the heat shock destructive microcapsule therein.
According to claim 1,

The phase change microcapsule and the heat shock fracture type microcapsule is an encapsulation device characterized in that it is distributed between the first and second film layers at a specific density so as not to concentrate more than a certain standard on any part.
According to claim 2,

Encapsulation device for fire extinguishing, characterized in that the phase change microcapsule and the heat shock destructive microcapsule are in a ratio of (1 cm 2 ) 1 or more and 100 or less: 1 per unit area.
According to claim 1,

The thermal shock breaking type microcapsule has an external protective film that cracks at a certain temperature or higher; And an extinguishing material filled inside and released to the outside upon occurrence of the crack.
According to claim 1,

The phase change microcapsules are 1-dodecanol, paraffin oil, formalinic acid, lactic acid, methyl palmitate, phenylone, dokasil bromide, caprylone, phenol, heptadecanone, 1-cyclohexyloctadecane, 4-heptade Canon, P-zolidine, cyanamide, methyl eicosanate, 3-heptadecanone, 2-heptadecanone, hydrocinnamic acid, cetyl alcohol, A-neptylamine, camphor, O-nitro Aniline, 9-heptadecanone, thymol, methyl behenate, diphenyl amine, P-dichloro benzene, oxoleate, hypoic acid, O-xylene dichloride, B-chloroic acid, chloroacetic acid, nitronaphthalene, trimiristin, Heptowndecyl Acid, A-Chloroic Acid, Bee Wax, Glycolic Acid, P-Bromo Phenolic, Azobenzene, Acrylic Acid, Dinto Toluene (2,4), Phenyl Acetic Acid, Thiosinamine, Brocamphor, Duren, Benzyl , Methyl bromide, alpha naphthol, glutaric acid, p-xylene dichloride, catechol, quinone, acetanilide, succinic anhydride, benzoic acid, styrenic or derivatives thereof, and formed at any one temperature or higher Encapsulation device for fire extinguishing, characterized in that when the external temperature rises, the corresponding heat is temporarily absorbed, and when the external temperature falls below a second temperature, the temporarily absorbed heat is released.
According to claim 1,

The encapsulation device for fire extinguishing is used to wrap a battery rack containing a battery therein.