CN218076081U - Fire blanket - Google Patents

Abstract

The application relates to the technical field of fire-extinguishing protective appliances, in particular to a fire blanket. A fire blanket comprises a first film layer and a second film layer, wherein the first film layer and the second film layer are integrally formed with a cavity; the cavity is filled with fire extinguishing agent; when the fire extinguishing agent in the cavity is placed in a fire environment, the fire extinguishing agent is heated and gasified to generate blasting tension capable of damaging the first thin film layer and/or the second thin film layer, and the gasified fire extinguishing agent is diffused to the fire environment to extinguish a fire source. Reagent of putting out a fire in this application is heated the gasification, produces the blasting tension that destroys first thin layer and/or second thin layer and can bear, and the reagent diffusion of putting out a fire extinguishes the burning things which may cause a fire disaster under the fire hazard environment, plays the effect of putting out a fire rapidly, can avoid causing the secondary to destroy when accomplishing putting out a fire rapidly precision instruments, regulator cubicle, new energy automobile group battery, effectively reduces the economic loss that the conflagration brought.

Description

Fire blanket

Technical Field

The application relates to the technical field of fire-extinguishing protective appliances, in particular to a fire blanket.

Background

The fire extinguisher is one of common fire-proof facilities, is stored in public places or places where fire possibly occurs, and the fire extinguishing effective components filled in the adopted fire extinguishers are different according to different fire occurrence scenes and fire sources. The fire extinguisher can be divided into the following parts according to different fire extinguishing agents filled in the fire extinguisher: foam extinguishers, fire extinguishers, carbon dioxide extinguishers, clear water extinguishers, and the like.

For example, in an electrical appliance fire (E-type fire), a carbon dioxide fire extinguisher, an ammonium phosphate dry powder fire extinguisher or a sodium bicarbonate dry powder fire extinguisher is adopted. However, when an electrical appliance product is put out a fire, whether a carbon dioxide fire extinguisher, an ammonium phosphate dry powder fire extinguisher or a sodium bicarbonate dry powder fire extinguisher is adopted, the electrical appliance itself is damaged and secondarily damaged.

In view of the above-mentioned fire extinguisher in the related art, the applicant has found that the following drawbacks exist in the technical solution: although the corresponding fire extinguishing purpose can be achieved, the electric device can be damaged and secondarily damaged, and particularly, the precise instrument, the electrical cabinet, the new energy automobile battery pack and the like can be seriously damaged or even directly scrapped.

SUMMERY OF THE UTILITY MODEL

In order to solve the fire extinguisher among the correlation technique and can lead to the fact destruction and secondary damage to electrical part itself, especially can lead to the fact serious destruction, direct condemned problem even to precision instruments, regulator cubicle, new energy automobile group battery etc. this application provides a fire blanket.

The application provides a fire blanket, is realized through following technical scheme:

a fire blanket comprises a first film layer and a second film layer, wherein the first film layer and the second film layer are integrally formed with a cavity; fire extinguishing agent is filled in the cavity; when the fire extinguishing agent in the cavity is placed in a fire environment, the fire extinguishing agent is heated and gasified to generate blasting tension capable of damaging the first thin film layer and/or the second thin film layer, and the gasified fire extinguishing agent is diffused to the fire environment to extinguish a fire source.

Through adopting above-mentioned technical scheme, to first thin layer and second thin layer edge adopt hot pressing connection in this application, ultrasonic bonding, mode such as UV glues fixed connection carries out sealing connection, fill fire extinguishing agent in the cavity that first thin layer and second thin layer formed, fire extinguishing agent is heated gasification in this application, produce the blasting tension that destroys first thin layer and/or second thin layer and can bear, the fire source is extinguished to gasified fire extinguishing agent diffusion under the fire hazard environment, play the effect of putting out a fire rapidly, and to precision instruments, the regulator cubicle, when the new energy automobile group battery is accomplished and is put out a fire rapidly, can avoid to precision instruments, the regulator cubicle, cause the secondary destruction new energy automobile group battery etc. effectively, effectively reduce the economic loss that the conflagration brought.

In addition, the design of this application accessible size formulates certain space volume's place and puts out a fire, avoids extinguishing fire reagent's waste, reduces the cost of putting out a fire. If the volume of the target fire extinguishing scene is Am Bm Cm, the fire extinguishing concentration of the fire extinguishing agent is controlled at X%, the dosage of the fire extinguishing agent is controlled: m (kg) = a × B × X%/M (molar amount of fire extinguishing agent)/22.4.

Preferably, the fire extinguishing agent is at least one of perfluoro C5-C8 alkanes, at least one of perfluoro C5-C8 alcohols, at least one of perfluoro C5-C8 esters, at least one of perfluoro C5-C8 acids, or at least one of perfluoro C5-C8 ketones.

Through adopting above-mentioned technical scheme, can play the effect of quick fire extinguishing, and in the fire hazard environment was arranged in to the blanket of putting out a fire in this application, the reagent of putting out a fire of storage in the cavity is heated the gasification, produce the blasting tension of destroying first thin layer and second thin layer, after blasting first thin layer and/or second thin layer, the reagent of putting out a fire of gasification diffuses to the environment fast, play the effect of putting out a fire rapidly, and to the precision instrument, the regulator cubicle, when the new energy automobile group battery was accomplished and is put out a fire rapidly, can avoid the precision instrument, the regulator cubicle, new energy automobile group battery etc. causes the secondary to destroy, effectively reduce the economic loss that the conflagration brought.

Preferably, the fire extinguishing agent is perfluorohexanone, and the maximum burst tension which can be borne by the first film layer and the second film layer is 1.0-2.5 times of the saturated vapor pressure of the corresponding fire extinguishing agent at the highest temperature of a use scene.

The perfluorohexanone has the extinguishing concentration of 4-6 percent and higher safety margin, and is safer for human bodies when in use. The perfluorohexanone is liquid at normal temperature, does not belong to dangerous goods, can be safely used at normal pressure, cannot be frozen at the temperature of minus 20 ℃, and has relatively good storage property.

The maximum explosion tension which can be borne by the first thin film layer and the second thin film layer is 1.0-2.5 times of the saturated steam pressure of the corresponding fire extinguishing agent at the highest temperature of a using scene, and the design safety margin requirement under the common working condition is considered.

The maximum bursting tension capable of being borne by the first thin film layer and the second thin film layer is 1 time of the saturation steam pressure of the corresponding fire extinguishing agent at the highest temperature of a use scene, when the maximum bursting tension capable of being borne by the first thin film layer and the second thin film layer is 0.14 MPa, when the perfluorohexanone is heated to 65 ℃, the perfluorohexanone is gasified to generate the steam pressure for breaking the first thin film layer and/or the second thin film layer, and the steam pressure is quickly diffused to the environment, so that the effect of quickly extinguishing the fire is achieved. When the maximum bursting tension borne by the first film layer and the second film layer is 0.33MPa, when the perfluorohexanone is heated to 90 ℃, the perfluorohexanone is gasified to generate vapor pressure for breaking the first film layer and/or the second film layer, and the vapor pressure is quickly diffused to the environment, so that the effect of quickly extinguishing the fire is achieved.

When the maximum explosion tension which can be borne by the first thin film layer and the second thin film layer is more than 1.0 time, such as 1.75 times, of the saturated vapor pressure of the corresponding fire extinguishing agent when the maximum explosion tension which can be borne by the first thin film layer and the second thin film layer is the maximum temperature of a using scene, when the maximum explosion tension which can be borne by the first thin film layer and the second thin film layer is =1.75 x 0.16= 0.28MPa, when the perfluorohexanone is heated to 65 ℃, the explosion tension is 0.16MPa, when the perfluorohexanone is heated to be more than 85 ℃, the explosion tension is more than 0.28MPa, the saturated vapor pressure generated by the heating of the perfluorohexanone breaks the first thin film layer and/or the second thin film layer, and the perfluorohexanone is rapidly diffused into the environment, so that the effect of rapidly extinguishing the fire is achieved.

Fire blanket in this application arranges fire hazard environment in, the perfluoro ketone of storage in the cavity is heated the gasification, produce the blasting tension who destroys first thin layer and second thin layer, after blasting first thin layer and/or second thin layer, the perfluoro ketone of gasification diffuses to the environment fast, when perfluoro ketone concentration is 4-6%, extinguish the burning things which may cause a fire disaster fast and be harmless to the human body, play the effect of putting out a fire fast, to precision instruments, the regulator cubicle, can avoid causing the secondary destruction to precision instruments when new energy automobile group battery accomplishes putting out a fire fast, the regulator cubicle, new energy automobile group battery etc. effectively reduce the economic loss that the conflagration brought.

Preferably, the maximum bursting tension which can be borne by the first thin film layer and the second thin film layer is 2 times of the saturated steam pressure of the corresponding fire extinguishing agent at the highest temperature of a use scene.

When the maximum bursting tension born by the first film layer and the second film layer is =2 × 0.16=0.32mpa, when the perfluorohexanone is heated to 70 ℃, the bursting tension is 0.16MPa, and when the perfluorohexanone is heated to 90 ℃, the bursting tension is greater than 0.32MPa, the saturated vapor pressure generated by heating the perfluorohexanone ruptures the first film layer and/or the second film layer, and the perfluorohexanone is rapidly diffused into the environment to play a role in rapidly extinguishing the fire.

When the maximum explosion tension borne by the first thin film layer and the second thin film layer is 0.16MPa, the fire blanket can be used for fire extinguishing and fire prevention of a battery module on a new energy automobile, and because the set safe temperature of the battery module on the new energy automobile is 70 ℃, when the temperature of a battery in the battery module on the new energy automobile rises to 70 ℃, the automobile is set to have a battery accident, and the automobile is stopped emergently; when the temperature of the battery module on the new energy automobile is 70 ℃, the fire extinguishing agent in the fire blanket breaks the first thin film layer and/or the second thin film layer, the battery module on the new energy automobile is subjected to fire extinguishing and fire preventing treatment, time is created for personnel to escape, and the use safety coefficient of the new energy automobile is improved.

When the maximum bursting tension which can be borne by the first film layer and the second film layer is 0.28MPa, when the perfluorohexanone is heated to 85 ℃, the perfluorohexanone is gasified to generate vapor pressure for breaking the first film layer and/or the second film layer, and the vapor pressure is quickly diffused to the environment, so that the effect of quickly extinguishing fire is achieved.

Preferably, the number of cavities is at least greater than two; the adjacent cavities are not communicated.

Through adopting above-mentioned technical scheme, the fire blanket is to local ignition source, and the first thin layer of fire extinguishing agent gasification rupture and/or second thin layer in the peripheral cavity of fire blanket and ignition source contact department extinguish the ignition source rapidly, still stores fire extinguishing agent in the not ruptured cavity, but reuse reduces the cost of putting out a fire, is applicable to the family and puts out a fire and uses.

Preferably, the number of cavities is at least greater than two; the adjacent cavities are communicated with each other.

Through adopting above-mentioned technical scheme, the fire blanket is to local ignition source, and first thin layer and/or second thin layer are broken in the gasification of fire extinguishing agent in the peripheral cavity of fire blanket and ignition source contact department, extinguishes the ignition source rapidly, because communicate each other between the adjacent cavity, the fire extinguishing agent in all the other cavities can supply the not ruptured cavity of flow direction, can play high-efficient and quick effect of putting out a fire, is applicable to and handles E class conflagration.

Preferably, after the cavity is filled with the fire extinguishing agent, when the first thin film layer is a flat surface, irregular bulges are formed on the surface of the second thin film layer; and when the second film layer is a flat surface, irregular bulges are formed on the surface of the first film layer.

By adopting the technical scheme, the flat surface or the irregular bulging surface can be selected to be in point contact with the ignition point according to the actual fire extinguishing demand, and the flat surface or the irregular bulging surface is directionally blasted to extinguish fire; can select planomural or irregular bulging face to the position contact that easily takes place to catch fire according to the in-service use demand of fire blanket in this application, and directional blasting planomural or irregular bulging face is prevented fires, is put out a fire.

When the fire blanket in this application was used for the fire prevention of new energy automobile battery group to put out a fire, the biggest blasting tension that first thin layer and second thin layer can bear was 0.16MPa, and the irregular swell surface of fire blanket contacts with the thermal runaway protection shell of new energy automobile battery group, reserves heat dissipation clearance between the irregular swell surface of fire blanket and the thermal runaway protection shell of new energy automobile battery group, does not influence the heat dissipation demand of the thermal runaway protection shell of new energy automobile battery group.

Preferably, after the cavity is filled with the fire extinguishing agent, irregular bulges are formed on the surfaces of the first film layer and the second film layer.

Through adopting above-mentioned technical scheme, can be according to the even irregular fire blanket of bulging in customer's actual fire prevention, the demand of putting out a fire customization in two sides, satisfy different customer demands, be applicable to the fire prevention of regulator cubicle, put out a fire.

Preferably, the solar cell further comprises a third film layer, wherein the third film layer is fixedly connected between the first film layer and the second film layer and divides the cavity into a plurality of unit cavities; the adjacent unit cavities are communicated with each other; the first thin film layer and the second thin film layer are flat surfaces.

Through adopting above-mentioned technical scheme, first thin layer and second thin layer are the planarization face and can make the fire blanket use scene in this application more wide, satisfy different customer demands. In addition, the fire blanket is to local ignition source, and first thin layer of fire extinguishing agent gasification rupture and/or second thin layer in the fire blanket and the peripheral cavity of ignition source contact department extinguish ignition source rapidly, because communicate each other between the adjacent cavity, the fire extinguishing agent in all the other cavities can supply the not ruptured cavity of flow direction, can play high-efficient and quick fire extinguishing's effect, is applicable to and handles E type conflagration.

Preferably, the solar cell further comprises a third film layer, wherein the third film layer is fixedly connected between the first film layer and the second film layer and divides the cavity into a plurality of unit cavities; the adjacent unit cavities are not communicated with each other; the first thin film layer and the second thin film layer are flat surfaces. In addition, the fire blanket is to local ignition source, and the first thin layer of fire extinguishing agent gasification rupture and second thin layer in the cavity of fire blanket and ignition source contact department periphery extinguish chamber, extinguishes the ignition source rapidly, still stores fire extinguishing agent in the not ruptured cavity, can reuse, reduces the cost of putting out a fire, is applicable to the family and puts out a fire and uses.

Through adopting above-mentioned technical scheme, first thin layer and second thin layer are the burnishing surface and can make the fire blanket use scene in this application more wide, satisfy different customer demands.

In summary, the present application has the following advantages:

1. the reagent of putting out a fire in this application is heated the gasification, produces the blasting tension that destroys first thin layer and/or second thin layer and can bear, and the reagent diffusion of putting out a fire extinguishes the burning things which may cause a fire disaster under the fire hazard environment, plays the effect of putting out a fire rapidly, can avoid causing the secondary to destroy when accomplishing putting out a fire rapidly precision instruments, regulator cubicle, new energy automobile group battery, effectively reduces the economic loss that the conflagration brought.

2. The fire blanket in this application can be used to the fire prevention of putting out a fire of the battery module on the new energy automobile, and the temperature of the battery module on the new energy automobile 70 ℃, fire extinguishing agent in the fire blanket breaks first thin layer and/or second thin layer, puts out a fire the fire prevention to the battery module on the new energy automobile and handles, flees for the personnel and creates the time, promotes the application safety factor of new energy automobile.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 in the present application, in which the first thin film layer is a flat surface.

Fig. 2 is a schematic view of the overall structure of embodiment 1 in the present application, wherein the second thin film layer is a flat surface.

Fig. 3 is a schematic view of the overall structure of example 1 in the present application, wherein irregular bulges are formed on both surfaces of the first thin film layer and the second thin film layer.

Fig. 4 is a plan view of the entire structure of embodiment 2 in the present application.

Fig. 5 is a schematic view of the entire structure of embodiment 2 in the present application, wherein the first thin film layer is a flat surface.

Fig. 6 is a schematic view of the whole structure of embodiment 2 in the present application, wherein the second thin film layer is a flat surface.

Fig. 7 is a schematic view of the overall structure of example 2 in the present application, wherein irregular bulges are formed on the surfaces of the first film layer and the second film layer.

Fig. 8 is a plan view of the entire structure of embodiment 3 in the present application.

Fig. 9 is a schematic view of the entire structure of embodiment 3 of the present application, in which the first thin film layer is a flat surface.

Fig. 10 is a schematic view of the entire structure of embodiment 3 of the present application, in which the second thin film layer is a flat surface.

Fig. 11 is example 3 of the present application, in which irregular bulges are formed on both surfaces of the first film layer and the second film layer.

Fig. 12 is a schematic view of the whole structure of example 4 in the present application, wherein the first thin film layer and the second thin film layer are flat surfaces and adjacent unit cavities are communicated with each other.

Fig. 13 is a partial enlarged view at a in fig. 12.

Fig. 14 is a schematic view of the whole structure of example 6 in this application, in which the first thin film layer and the second thin film layer are both flat surfaces and adjacent unit cavities are not communicated with each other.

Fig. 15 is a schematic view of the entire structure of example 7 in the present application, in which the third thin film layer is a flat surface and the cavity, the upper cavity, and the lower cavity are communicated with each other.

Fig. 16 is a partial enlarged view at B in fig. 15.

Fig. 17 is a schematic view of the entire structure of embodiment 8 in the present application, in which the third thin film layer is a flat surface and the cavity, the upper cavity, and the lower cavity are not communicated with each other.

In the figure, 1, a first thin film layer; 10. a first connecting channel; 2. a second thin film layer; 20. a flow through hole; 3. a cavity; 30. a cell cavity; 31. an upper cavity; 32. a lower cavity; 4. a fire extinguishing agent; 5. a third thin film layer; 50. and a through hole.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples.

Example 1

Referring to fig. 1, a fire blanket disclosed in the present application includes a first film layer 1, a second film layer 2, and a fire extinguishing agent 4 filled between the first film layer 1 and the second film layer 2.

The material of the first film layer 1 and the second film layer 2 is selected from one of PE, PS, PET, EVA and silica gel film. When the material of the first film layer 1 and the second film layer 2 is selected from one of PE, PS, PET and EVA, the first film layer 1 and the second film layer 2 can be sealed and fixedly connected by adopting modes such as hot melt connection, ultrasonic welding, bonding and the like. When the first thin film layer 1 and the second thin film layer 2 are silica gel thin films, the first thin film layer 1 and the second thin film layer 2 can be sealed and fixedly connected by adopting a bonding (glue bonding) mode.

In actual production of the fire blanket, the design pressure of the first film layer 1 and the second film layer 2 is preferably 2 times of the saturated vapor pressure of the corresponding fire extinguishing agent at the highest temperature of the use scene.

Referring to fig. 1, in the production process, the edges of the first film layer 1 and the second film layer 2 are sealed and fixedly connected, so that a cavity 3 is formed on the first film layer 1 and the second film layer 2, and a fire extinguishing agent 4 is filled in the cavity 3. The shape of cavity 3 can be prepared according to actual demand in this application.

Referring to fig. 1, the number of cavities 3 is 1. After the cavity 3 is filled with the fire extinguishing agent 4, the first film layer 1 is a flat surface, and irregular bulges are formed on the surface of the second film layer 2. The first film layer 1 is equal to the second film layer 2 in thickness, and the blasting direction depends on the contact surface with the fire source. The first thin film layer 1 is larger than the second thin film layer 2 in film thickness, and the blasting direction depends on the second thin film layer 2. The first thin film layer 1 is smaller than the film thickness of the second thin film layer 2, and the direction of blasting depends on the first thin film layer 1.

Referring to fig. 2, the number of the cavities 3 is 1, after the cavities 3 are filled with fire extinguishing agents 4, the second thin film layer 2 is a flat surface, and irregular bulges are formed on the surface of the first thin film layer 1.

Referring to fig. 3, the number of the cavities 3 is 1, and after the cavities 3 are filled with fire extinguishing agents 4, irregular bulges are formed on the surfaces of the first film layer 1 and the second film layer 2.

The fire extinguishing agent 4 is at least one of perfluorohexane, perfluoropentane, perfluoroheptane and perfluorooctane.

The fire extinguishing agent 4 is at least one of perfluoropentanol, perfluorohexanol, perfluoroheptanol and perfluorooctanol.

The fire extinguishing agent 4 is at least one of perfluorovaleric acid, perfluorohexanoic acid, perfluoroheptanoic acid and perfluorooctanoic acid.

The fire extinguishing agent 4 is at least one of perfluoro C5-C8 ester.

The fire extinguishing agent 4 is at least one of perfluoropentanone, perfluorohexanone, perfluoroheptanone and perfluorooctanone.

The application of the fire extinguishing principle: when the fire extinguishing agent 4 in the cavity 3 is placed in a fire environment, the fire extinguishing agent 4 is heated and gasified to generate blasting tension capable of damaging the first thin film layer and/or the second thin film layer, under the blasting tension, the gasified fire extinguishing agent 4 breaks through the first thin film layer 1 and/or the second thin film layer 2, and the gasified fire extinguishing agent is diffused to the fire environment to extinguish a fire source.

Design principle of the first thin film layer 1 and the second thin film layer 2:

the maximum burst tension of the first film layer 1 and the second film layer 2 depends on: the type of the film material, the thickness of the film material, the type of the fire extinguishing agent 4, the filling amount of the fire extinguishing agent 4, the pre-punching pressure of the fire extinguishing agent 4 (under the conventional overall condition, the first thin film layer 1 and the second thin film layer 2 are under the tension of the fire extinguishing agent 4), and the pre-punching temperature of the fire extinguishing agent 4.

Taking perfluorohexanone as the fire extinguishing agent 4 for example, the maximum burst tension that the first thin film layer 1 and the second thin film layer 2 can bear is controlled to be 0.14-0.33 MPa. Fire blanket in this application arranges fire hazard environment in, the perfluoro ketone of storage in the cavity is heated the gasification, produce the blasting tension who destroys first thin layer and second thin layer, after blasting first thin layer and/or second thin layer, the perfluoro ketone of gasification diffuses to the environment fast, when perfluoro ketone concentration is 4-6%, extinguish the burning things which may cause a fire disaster fast and harmless to the human body, play the effect of putting out a fire rapidly, to precision instruments, the regulator cubicle, can avoid causing the secondary to destroy when new energy automobile group battery accomplishes putting out a fire rapidly, effectively reduce the economic loss that the conflagration brought.

When the maximum bursting tension borne by the first film layer and the second film layer is 0.14 MPa, when the perfluorohexanone is heated to 65 ℃, the perfluorohexanone is gasified to generate vapor pressure for breaking the first film layer and/or the second film layer, and the vapor pressure is quickly diffused to the environment, so that the effect of quickly extinguishing the fire is achieved.

When the maximum bursting tension borne by the first film layer and the second film layer is 0.33MPa, when the perfluorohexanone is heated to 90 ℃, the perfluorohexanone is gasified to generate vapor pressure for breaking the first film layer and/or the second film layer, and the vapor pressure is quickly diffused to the environment, so that the effect of quickly extinguishing the fire is achieved.

Preferably, the maximum burst tension that the first film layer 1 and the second film layer 2 can withstand is 0.16-0.28MPa.

When the maximum bursting tension borne by the first film layer and the second film layer is 0.16MPa, when the perfluorohexanone is heated to 70 ℃, the perfluorohexanone is gasified to generate vapor pressure for breaking the first film layer and/or the second film layer, and the vapor pressure is quickly diffused to the environment to play a role in quickly extinguishing the fire.

When the maximum explosion tension borne by the first thin film layer and the second thin film layer is 0.16MPa, the fire blanket can be used for fire extinguishing and fire prevention of a battery module on a new energy automobile, and because the set safe temperature of the battery module on the new energy automobile is 70 ℃, when the temperature of a battery in the battery module on the new energy automobile rises to 70 ℃, the automobile is set to have a battery accident, and the automobile is stopped emergently; when the temperature of the battery module on the new energy automobile is 70 ℃, the fire extinguishing agent in the fire extinguishing blanket breaks the first thin film layer and/or the second thin film layer, the battery module on the new energy automobile is subjected to fire extinguishing and fire preventing treatment, time is created for escape of people, and the use safety factor of the new energy automobile is improved.

When the maximum bursting tension which can be borne by the first film layer and the second film layer is 0.28MPa, when the perfluorohexanone is heated to 85 ℃, the perfluorohexanone is gasified to generate vapor pressure for breaking the first film layer and/or the second film layer, and the vapor pressure is quickly diffused to the environment, so that the effect of quickly extinguishing fire is achieved.

Example 2

Example 2 differs from example 1 in that:

referring to fig. 4, the number of the cavities 3 is at least greater than two, and the adjacent cavities 3 are communicated with each other, and the shape of the cavities 3 can be prepared according to actual requirements. A first connecting channel 10 for communicating the adjacent cavities 3 is reserved between the first film layer 1 and the second film layer 2.

Referring to fig. 5, the number of cavities 3 is 4. After the cavity 3 is filled with the fire extinguishing agent 4, the first film layer 1 is a flat surface, and the surface of the second film layer 2 forms an irregular bulge.

Referring to fig. 6, the number of the cavities 3 is 4, and after the cavities 3 are filled with the fire extinguishing agent 4, the second film layer 2 is a flat surface, and then irregular bulges are formed on the surface of the first film layer 1.

Referring to fig. 7, the number of the cavities 3 is 4, and after the cavities 3 are filled with fire extinguishing agents 4, irregular bulges are formed on the surfaces of the first film layer 1 and the second film layer 2.

Example 3

Example 3 differs from example 1 in that:

referring to fig. 8, the number of the cavities 3 is at least greater than two, and the adjacent cavities 3 are not communicated with each other, and the shape of the cavities 3 can be prepared according to actual requirements.

Referring to fig. 9, the number of cavities 3 is 4. After the cavity 3 is filled with the fire extinguishing agent 4, the first film layer 1 is a flat surface, and irregular bulges are formed on the surface of the second film layer 2.

Referring to fig. 10, the number of the cavities 3 is 4, and after the cavities 3 are filled with the fire extinguishing agent 4, the second thin film layer 2 is a flat surface, and then irregular bulges are formed on the surface of the first thin film layer 1.

Referring to fig. 11, the number of the cavities 3 is 4, and after the cavities 3 are filled with the fire extinguishing agent 4, irregular bulges are formed on the surfaces of the first film layer 1 and the second film layer 2.

Example 4

Example 4 differs from example 1 in that:

referring to fig. 12 and 13, a fire blanket includes a third film layer 5, both the first film layer 1 and the second film layer 2 are flat surfaces, and the third film layer 5 is fixedly connected between the first film layer 1 and the second film layer 2 to divide a cavity 3 into five unit cavities 30. The third thin film layer 5 is provided with a plurality of through holes 50 so that the adjacent unit cavities 30 are communicated with each other, i.e., five unit cavities 30 are communicated with each other.

Example 5

Example 5 differs from example 4 in that:

the third film layer 5 is formed with a through hole 50 to allow the adjacent unit cavities 30 to communicate with each other. A channel for communicating the third thin film layer 5 with the first thin film layer 1 is reserved at the joint of the third thin film layer 5 and the first thin film layer 1; a channel for communicating the third film layer 5 with the second film layer 2 is reserved at the joint of the third film layer 5 and the second film layer 2.

Example 6

Example 6 differs from example 1 in that:

referring to fig. 14, the fire blanket comprises a third film layer 5, wherein both the first film layer 1 and the second film layer 2 are flat surfaces, the third film layer 5 is fixedly connected between the first film layer 1 and the second film layer 2 to divide the cavity 3 into a plurality of unit cavities 30, and the adjacent unit cavities 30 are not communicated with each other.

Example 7

Example 7 differs from example 4 in that:

referring to fig. 15, a fire blanket comprises two third thin film layers 5, and the two third thin film layers 5 are flat surfaces. The first film layer 1 and the second film layer are fixedly connected between the two third film layers 5.

Referring to fig. 15, four cavities 3 are formed between the first thin film layer 1 and the second thin film layer 2. 3 upper cavities 31 are formed between the third film layer 5 and the first film layer 1, and a lower cavity 32 is formed between the third film layer 5 and the second film layer 2.

Referring to fig. 16, the first film layer 1 and the second film layer 2 are provided with liquid flow through holes 20 so that the cavity 3, the upper cavity 31, and the lower cavity 32 communicate with each other.

Example 8

Example 8 differs from example 4 in that:

referring to fig. 17, a fire blanket comprises two third thin film layers 5, and the two third thin film layers 5 are flat surfaces. The first film layer 1 and the second film layer are fixedly connected between the two third film layers 5. Four cavities 3 are formed between the first film layer 1 and the second film layer 2. 3 upper cavities 31 are formed between the third film layer 5 and the first film layer 1, and a lower cavity 32 is formed between the third film layer 5 and the second film layer 2. The cavity 3, the upper cavity 31 and the lower cavity 32 are not communicated with each other.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A fire blanket, characterized in that: the film comprises a first film layer (1) and a second film layer (2), wherein a cavity (3) is formed in the first film layer (1) and the second film layer (2) in an integrated mode; the cavity (3) is filled with a fire extinguishing agent (4); when the fire extinguishing agent (4) in the cavity (3) is placed in a fire environment, the fire extinguishing agent (4) is heated and gasified to generate blasting tension capable of damaging the first thin film layer and/or the second thin film layer, and the gasified fire extinguishing agent (4) is diffused to the fire environment to extinguish a fire source; the fire extinguishing agent (4) is perfluorohexanone, and the maximum explosion tension borne by the first thin film layer (1) and the second thin film layer (2) is 1.0-2.5 times of the saturated vapor pressure of the corresponding fire extinguishing agent at the highest temperature of a using scene.

2. A fire blanket according to claim 1, wherein: the maximum explosion tension which can be borne by the first thin film layer (1) and the second thin film layer (2) is 2 times of the saturated steam pressure of the corresponding fire extinguishing agent when the highest temperature of a using scene is achieved.

3. A fire blanket according to claim 1, wherein: the number of the cavities (3) is at least more than two; the adjacent cavities (3) are communicated with each other.

4. A fire blanket according to claim 1, wherein: the number of the cavities (3) is at least more than two; the adjacent cavities (3) are not communicated.

5. A fire blanket according to claim 3 or 4, wherein: after the cavity (3) is filled with the fire extinguishing agent (4), when the first film layer (1) is a flat surface, irregular bulges are formed on the surface of the second film layer (2); when the second thin film layer (2) is a flat surface, irregular bulges are formed on the surface of the first thin film layer (1).

6. A fire blanket according to claim 3 or 4, wherein: after the cavity (3) is filled with the fire extinguishing agent (4), irregular bulges are formed on the surfaces of the first thin film layer (1) and the second thin film layer (2).

7. A fire blanket as recited in claim 1, wherein: the film comprises a first film layer (1), a second film layer (2) and a third film layer (5), wherein the first film layer (1) is fixedly connected with the second film layer (2), and the third film layer (5) divides the cavity (3) into a plurality of unit cavities (30); the adjacent unit cavities (30) are communicated with each other; the first thin film layer (1) and the second thin film layer (2) are flat surfaces.

8. A fire blanket according to claim 1, wherein: the film comprises a first film layer (1), a second film layer (2) and a third film layer (5), wherein the first film layer (1) is fixedly connected with the second film layer (2), and the third film layer (5) divides the cavity (3) into a plurality of unit cavities (30); the adjacent unit cavities (30) are not communicated with each other; the first thin film layer (1) and the second thin film layer (2) are flat surfaces.

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