CN216022833U

CN216022833U - Fire extinguishing device

Info

Publication number: CN216022833U
Application number: CN202122163174.8U
Authority: CN
Inventors: 付巧宇; 王祺; 张俊峰
Original assignee: Hubei Jiandun Fire Technology Co Ltd
Current assignee: Hubei Jiandun Fire Technology Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-15
Anticipated expiration: 2031-09-08

Abstract

The application relates to a fire extinguishing device, which comprises a shell, a fire extinguishing chamber and a fire extinguishing chamber, wherein the shell is provided with an accommodating cavity, and one end of the shell is provided with a nozzle communicated with the accommodating cavity; the aerosol fire extinguishing agent is arranged in the accommodating cavity and can generate gaseous fire extinguishing substances to be sprayed out of the nozzle after being ignited; the cooling agent is arranged in the accommodating cavity and is positioned between the aerosol fire extinguishing agent and the nozzle along the spraying direction of the gas fire extinguishing substance; wherein, the ratio range of the gas production of the aerosol fire extinguishing agent in unit time to the area of the nozzle is as follows: greater than or equal to 20 ml/mm and less than or equal to 110 ml/mm. The application provides a extinguishing device enables partial gaseous fire extinguishing substance at holding intracavity circulation to many times through the coolant, can improve the utilization ratio of coolant, and can further reduce extinguishing device's volume, and then make extinguishing device can be applied to in more little space scenes.

Description

Fire extinguishing device

Technical Field

The application relates to the technical field of fire control, in particular to a fire extinguishing device.

Background

Along with the improvement of the living standard of people, the fire safety consciousness is also gradually promoted, the requirements of various fire extinguishing devices are increased day by day, and particularly, the aerosol fire extinguishing device is widely applied by the advantages of small size, non-pressure storage, no need of laying a pipe network and maintenance, high fire extinguishing efficiency, no toxicity, no harm, safety, reliability, environmental protection and the like, but simultaneously, because the nozzle temperature of the traditional aerosol fire extinguishing device is higher, the damage of equipment around the fire extinguishing device can be caused while the fire is extinguished.

The aerosol fire extinguishing device on the market at present usually adopts physical coolant or chemical coolant, and although the cooling effect of chemical coolant is good, how to utilize the coolant to the maximum degree and reach best cooling effect is a problem that is difficult to solve, if only increase the volume of coolant blindly, then the volume of extinguishing device also can increase, so make aerosol fire extinguishing device obtain abundant application in many little spaces.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a fire extinguishing apparatus capable of improving the utilization rate of the coolant, in order to solve the problem that the best cooling effect cannot be achieved by utilizing the coolant to the maximum extent when the volume of the conventional aerosol fire extinguishing apparatus is limited.

The application provides a fire extinguishing apparatus, includes:

the shell is provided with an accommodating cavity, and one end of the shell is provided with a nozzle communicated with the accommodating cavity;

the aerosol fire extinguishing agent is arranged in the accommodating cavity and can generate gaseous fire extinguishing substances to be sprayed out of the nozzle after being ignited; and

the coolant is arranged in the accommodating cavity and is positioned between the aerosol fire extinguishing agent and the nozzle along the spraying direction of the gas fire extinguishing substance;

wherein, the ratio range of the gas production of the aerosol fire extinguishing agent in unit time to the area of the nozzle is as follows: greater than or equal to 20 ml/mm and less than or equal to 110 ml/mm.

In one embodiment, the nozzle comprises a plurality of sub-nozzles which are arranged at intervals.

In one embodiment, the fire extinguishing apparatus further comprises a partition plate, so that the accommodating cavity is separated by the partition plate along the spraying direction of the gaseous fire extinguishing substance to form a storage cavity and a buffer cavity, the buffer cavity is connected with the nozzle, and the aerosol fire extinguishing agent and the coolant are both located in the storage cavity;

wherein, the clapboard is provided with a communicating hole for communicating the storage cavity with the buffer cavity.

In one embodiment, the communication hole comprises a plurality of sub communication holes which are arranged at intervals.

In one embodiment, the area of the communication hole is larger than the area of the spout.

In one embodiment, the housing is an aluminum housing.

In one embodiment, the housing is provided with a plurality of ribs.

In one embodiment, the plurality of ribs extends along the longitudinal direction of the housing.

In one embodiment, the housing includes a casing and a cover, the casing defines a first opening, the nozzle is disposed on the cover, and the cover is disposed at the first opening to form the accommodating cavity together with the casing.

In one embodiment, the coolant is a chemical coolant.

Above-mentioned extinguishing device takes place the condition of a fire when external environment, starts extinguishing device, and the aerosol fire extinguishing agent is ignited, and produces a large amount of gaseous fire extinguishing substance, and gaseous fire extinguishing substance is fast through the coolant cooling back, to the spout blowout, and because the ratio scope of the area of the gas production volume in the aerosol fire extinguishing agent unit interval of having designed and spout is: more than or equal to 20 ml/square millimeter and less than or equal to 110 ml/square millimeter, so only part of the gaseous extinguishing substances are sprayed out, and the other part of the gaseous extinguishing substances are blocked by the shell and then reflected to pass through the cooling agent again and can be driven to the spray opening again by the gaseous extinguishing substances advancing towards the direction of the spray opening, so that circulation can be formed in the accommodating cavity, and the temperature of the extinguishing substances sprayed out of the spray opening can be reduced.

Therefore, the ratio range of the gas production rate of the aerosol fire extinguishing agent in unit time to the area of the nozzle is set as follows: the volume of the fire extinguishing device is more than or equal to 20 ml/square millimeter and less than or equal to 110 ml/square millimeter, the utilization rate of the coolant can be improved, the volume of the fire extinguishing device can be further reduced, and the fire extinguishing device can be applied to more small space scenes.

Drawings

FIG. 1 is a schematic view of a fire suppression apparatus according to an embodiment of the present application;

FIG. 2 is an exploded view of the fire suppression apparatus shown in FIG. 1;

fig. 3 is a sectional view schematically showing the fire extinguishing apparatus shown in fig. 1.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Furthermore, the drawings are not 1: 1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.

Fig. 1 shows a schematic structural view of a fire extinguishing apparatus according to an embodiment of the present application, fig. 2 shows an exploded schematic structural view of the fire extinguishing apparatus shown in fig. 1, and fig. 3 shows a sectional schematic structural view of the fire extinguishing apparatus shown in fig. 1. For the purpose of illustration, the drawings show only the structures associated with embodiments of the utility model.

Referring to the drawings, an embodiment of the present application provides a fire extinguishing apparatus 100 including a housing 10, an aerosol fire suppressant 20, and a coolant (not shown). The fire suppression apparatus 100 of the present application may extinguish a fire in an external environment by releasing the aerosol fire suppressant 20.

The shell 10 is provided with an accommodating cavity 11, one end of the shell is provided with a nozzle 12 communicated with the accommodating cavity 11, the aerosol fire extinguishing agent 20 is arranged in the accommodating cavity 11 and can generate a gas fire extinguishing substance to be sprayed out of the nozzle 12 after ignition, and the coolant is arranged in the accommodating cavity 11 and is positioned between the aerosol fire extinguishing agent 20 and the nozzle 12 along the spraying direction of the aerosol fire extinguishing agent 20. The coolant is a chemical coolant, and in other embodiments, the coolant may also be a physical coolant, without limitation.

It should be noted that the aerosol fire suppressant 20 serves both as a source of motive force for the spray and as a fire suppressant substance to extinguish the fire from the external environment.

Wherein, the ratio range of the gas production of the aerosol fire extinguishing agent 20 in unit time to the area of the nozzle 12 is as follows: greater than or equal to 20 ml/mm and less than or equal to 110 ml/mm.

So, when the condition of a fire takes place for external environment, start extinguishing device 100, aerosol extinguishing agent 20 is ignited, and produces a large amount of gaseous extinguishing substance, and gaseous extinguishing substance is after the coolant cooling fast, to spout 12 blowout, and because the ratio scope of the gas production of having designed aerosol extinguishing agent 20 in the unit interval and the area of spout 12 is: more than or equal to 20 ml/square millimeter and less than or equal to 110 ml/square millimeter, so only part of the gaseous extinguishing substance is sprayed out, and the other part of the gaseous extinguishing substance is blocked by the shell 10 and then reflected to pass through the coolant again, and can be driven to the nozzle 12 again by the gaseous extinguishing substance advancing towards the direction of the nozzle 12, so that circulation can be formed in the accommodating cavity 10, and the temperature of the extinguishing substance sprayed out of the nozzle 12 can be reduced.

The application of the fire extinguishing apparatus 100 is characterized in that the ratio of the gas production amount in the unit time of the aerosol fire extinguishing agent 20 to the area of the nozzle 12 is as follows: more than or equal to 20 ml/square millimeter and less than or equal to 110 ml/square millimeter, the utilization rate of the coolant can be improved, and the volume of the fire extinguishing apparatus 100 can be further reduced, so that the fire extinguishing apparatus 100 can be applied to more small space scenes.

The inventor researches and discovers that when the ratio of the gas production of the aerosol fire extinguishing agent 20 in unit time to the area of the nozzle 12 is less than 20 ml/mm, the gas fire extinguishing substance is difficult to spray from the nozzle 12, so the fire extinguishing effect is poor, and when the ratio of the gas production of the aerosol fire extinguishing agent 20 in unit time to the area of the nozzle 12 is more than 110 ml/mm, the gas fire extinguishing substance is difficult to reflect after being blocked by the shell 10, so the cooling effect is poor.

Referring to fig. 2 and fig. 3 again, in the embodiment of the present application, the housing 10 includes a casing 13 and a cover 14, the casing 13 is provided with a first opening 131, the nozzle 12 is disposed on the cover 14, and the cover 14 is disposed at the first opening 131 to form the accommodating cavity 11 by enclosing with the casing 13. The combination of the housing 13 and the cover 14 facilitates the filling of the aerosol fire extinguishing agent 20 and the coolant, and the cover 14 is sealed with the first opening 131 to improve the IP protection level of the fire extinguishing apparatus 100, ensure the reliability of the housing 10, and enable the gaseous fire extinguishing substance to be sprayed only from the nozzle 12. More specifically, the cover 14 may be sealed at the first opening 131 by a sealant.

Further, the housing 13 further includes a housing body 132 and a rear cover 133, the first opening 131 is opened at one end of the housing body 132, the other end of the housing body 132 is opened at a second opening 1321, and the rear cover 133 covers the second opening 132. The rear cover 133 may be provided with at least one threading hole 1331 for the starting harness 40 or the feedback harness 50 of the fire extinguishing apparatus 100 to be threaded into the accommodating chamber 11 from the outside of the housing 10, wherein the starting harness 40 is used for igniting the aerosol fire extinguishing agent 20, and the feedback harness 50 is used for feeding back the ignition state of the aerosol fire extinguishing agent 20.

In some embodiments, the housing 10 is an aluminum housing. The aluminum shell is light in material and reliable in strength.

In some embodiments, a plurality of reinforcing ribs 1322 are provided on the outer shell 10, and specifically, may be provided on the shell body 132, and more specifically, the reinforcing ribs 1322 extend along the longitudinal direction of the shell body 132, and preferably, the reinforcing ribs 1322 extend along the longitudinal direction of the shell body 132 to both ends of the shell body 132. By arranging the reinforcing ribs 1322, the pressure bearing capacity of the shell 10 can be improved, and the shell 10 is prevented from being damaged due to the fact that no gas fire extinguishing substances are suppressed in the accommodating cavity 11 due to circulation.

In some embodiments, the fire suppression apparatus 100 further includes a mounting member having one end fixedly attached to the housing 10 and another end fixedly attached to an external structure. In particular to the embodiment of the present application, the mounting member includes a first mounting member 54 and a second mounting member 58, the first mounting member 54 being spaced apart from the second mounting member 58. Specifically, the first mounting member 54 is provided to the front cover 14, and the second mounting member 58 is provided to the rear cover 133.

In some embodiments, the nozzle 12 includes a plurality of sub-nozzles 121, and the plurality of sub-nozzles 121 are spaced apart from each other. Through setting up a plurality of sub-spouts 121, can make gaseous fire extinguishing substance receive the separation of shell 10 comparatively easily, and then ensure that it can be at the holding chamber 11 inner loop cooling. Specifically, the plurality of sub-nozzles 121 are arranged in a circular shape.

In some embodiments, the fire extinguishing apparatus 100 further includes a partition 60, the accommodating chamber 11 is separated by the partition 60 along the spraying direction of the gaseous fire extinguishing substance to form a storage chamber 111 and a buffer chamber 112, the buffer chamber 112 is connected to the nozzle 12, the aerosol fire extinguishing agent 20 and the coolant are both located in the storage chamber 111, and the partition 60 is provided with a communication hole 61 for communicating the storage chamber 111 and the buffer chamber 112. Therefore, the buffer cavity 112 is isolated by the partition plate 60, so that the internal pressure of the accommodating cavity 11 can be relieved to a certain extent, and the shell 10 is prevented from being damaged due to pressure bearing.

To avoid that the arrangement of the partition 60 affects the energy of the ejection of the gaseous extinguishing substance from the nozzle orifice 12, in some embodiments the area of the communication hole 61 is larger than the area of the nozzle orifice 12.

In some embodiments, the communication hole 61 includes a plurality of sub communication holes 611, and the plurality of sub communication holes 611 are disposed at intervals. Specifically, the plurality of sub communication holes 611 may be distributed throughout the entire partition 60.

In some embodiments, the fire extinguishing apparatus 100 further includes a covering member 70, the covering member 70 is disposed in the accommodating cavity 11, one side of the covering member 40 is opened with a third opening communicated with the accommodating cavity 11, and the covering member 70 is used for covering the aerosol fire extinguishing agent 20. By coating the aerosol fire extinguishing agent 20 with the coating member, the aerosol fire extinguishing agent 20 can be stably combusted to continuously generate gas, and the coating member has the effects of heat insulation, shock resistance and salt corrosion resistance, so that the IP protection level of the aerosol fire extinguishing agent 20 is also improved. Specifically, the cover 70 includes a cover silicone.

The fire extinguishing apparatus 100 provided by the embodiment of the application has the following beneficial effects:

when the fire condition takes place for the external environment, start extinguishing device 100, aerosol fire extinguishing agent 20 is ignited, and produces a large amount of gaseous fire extinguishing substance, and gaseous fire extinguishing substance is after coolant cooling fast, to spout 12 blowout, and because the ratio scope of the gas production of aerosol fire extinguishing agent 20 in the unit interval and the area of spout 12 has been designed: more than or equal to 20 ml/square millimeter and less than or equal to 110 ml/square millimeter, so only part of the gaseous extinguishing substance is sprayed out, and the other part of the gaseous extinguishing substance is blocked by the shell 10 and then reflected to pass through the coolant again, and can be driven to the nozzle 12 again by the gaseous extinguishing substance advancing towards the direction of the nozzle 12, so that circulation can be formed in the accommodating cavity 10, and the temperature of the extinguishing substance sprayed out of the nozzle 12 can be reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A fire suppression apparatus, comprising:

2. The fire suppression apparatus of claim 1, wherein the nozzle comprises a plurality of sub-nozzles spaced apart from one another.

3. The fire extinguishing apparatus according to claim 1, further comprising a partition plate, wherein the accommodating chamber is partitioned by the partition plate along a spraying direction of the gaseous extinguishing substance to form a storage chamber and a buffer chamber, the buffer chamber is connected with the nozzle, and the aerosol fire extinguishing agent and the coolant are both located in the storage chamber;

4. The fire extinguishing apparatus of claim 3, wherein the communication hole comprises a plurality of sub communication holes spaced apart from one another.

5. A fire extinguishing apparatus according to claim 3, wherein the area of the communication hole is larger than the area of the spout.

6. The fire suppression apparatus of claim 1, wherein the housing is an aluminum housing.

7. The fire suppression apparatus of claim 1, wherein said housing has a plurality of ribs thereon.

8. The fire suppression apparatus of claim 7, wherein a plurality of said ribs extend lengthwise of said housing.

9. The fire extinguishing apparatus of claim 1, wherein the housing includes a casing and a cover, the casing defines a first opening, the nozzle is disposed on the cover, and the cover is disposed at the first opening to form the receiving chamber together with the casing.

10. The fire suppression apparatus of claim 1, wherein the coolant is a chemical coolant.