CN213220689U

CN213220689U - Fire extinguishing device

Info

Publication number: CN213220689U
Application number: CN202020951914.7U
Authority: CN
Inventors: 王祺; 张俊峰; 李先军
Original assignee: Hubei Jiandun Fire Technology Co Ltd
Current assignee: Hubei Jiandun Fire Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-05-18
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a fire extinguishing device. The fire extinguishing device comprises a fire extinguishing container, a thrust piece, a gas generating structure and a fire extinguishing agent, wherein the thrust piece is arranged in a containing cavity of the fire extinguishing container, the containing cavity is divided into a gas generating cavity and a storage cavity which are independently arranged, the gas generating structure comprises a igniting piece and an aerosol fire extinguishing agent, the aerosol fire extinguishing agent is filled in the gas generating cavity, the fire extinguishing agent is filled in the storage cavity, the thrust piece can generate fire extinguishing substances to gather in the gas generating cavity after the aerosol fire extinguishing agent is ignited, the pushing piece is pushed to spray the fire extinguishing agent out of a nozzle, and a communicating structure for communicating the gas generating cavity and the storage cavity is formed between the circumferential side wall of the thrust piece and the inner wall of the storage cavity in. The utility model provides a fire extinguishing device because the thrust piece can promote the fire extinguishing agent to put out a fire under the effect of producing the gas structure, avoids because the fire extinguishing agent is from the spout blowout, and the space in storage chamber appears vacant and produces the turbulent flow, guarantees that the fire extinguishing agent can all spout.

Description

Fire extinguishing device

Technical Field

The utility model relates to a fire control technical field especially relates to a fire extinguishing apparatus.

Background

The dry powder extinguishing agent in the dry powder extinguishing device is dry and easy-to-flow fine powder, and the dry powder extinguishing agent is composed of inorganic salt with extinguishing effect and a small amount of additive which are dried, crushed and mixed to form fine solid powder. Obviously, the dry powder extinguishing agent can be smoothly sprayed out in the extinguishing process and the extinguishing effect is good, so that the dry powder extinguishing device is widely applied to fire fighting.

However, the dry powder extinguishing devices still have a large amount of residual dry powder after the dry powder extinguishing devices are sprayed, so that the extinguishing capacity of the dry powder extinguishing devices is lower than the theoretical value, the extinguishing capacity of the dry powder extinguishing devices is reduced in a variable manner, the cost of the dry powder extinguishing devices is increased, and therefore, the residual amount of the dry powder after the dry powder extinguishing devices are sprayed is reduced, and the key index for improving the energy efficiency of the dry powder extinguishing devices is achieved.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a fire extinguishing apparatus capable of reducing the residual amount of dry powder after the dry powder fire extinguishing apparatus is sprayed and improving the fire extinguishing capability, aiming at the problem that the existing dry powder fire extinguishing apparatus still has a large amount of residual dry powder after the spraying is finished and the fire extinguishing capability is low.

An aspect of the utility model provides a fire extinguishing apparatus, include:

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

the thrust piece is arranged in the accommodating cavity and divides the accommodating cavity into a gas generating cavity and a storage cavity, wherein the gas generating cavity is independently arranged, and the storage cavity is communicated with the nozzle;

the gas production structure comprises an ignition part and a gas production agent, the gas production agent is filled in the gas production cavity, and the ignition part is used for igniting the gas production agent;

the fire extinguishing agent is filled in the storage cavity;

the thrust piece is used for enabling gas generated after the gas generating agent is ignited by the ignition piece to be gathered in the gas generating cavity, so that the gas generating cavity reaches a first preset pressure value, and the thrust piece moves towards the nozzle along the axial direction of the containing cavity to spray the fire extinguishing agent out of the nozzle;

the circumferential side wall of the thrust piece is matched with the inner wall of the storage cavity to form a communicating structure for communicating the gas generating cavity with the storage cavity.

In one embodiment, a circumferential side wall of the thrust piece is provided with a first communication groove which penetrates through the thrust piece along the axial direction of the accommodating cavity, and a sealing convex part which is matched with the first communication groove is arranged on the boundary of the gas generating cavity and the storage cavity on the inner wall of the accommodating cavity;

the first communication groove and the inner wall of the storage cavity are matched to form the communication structure.

In one embodiment, the inner wall of the storage cavity is provided with a second communication groove extending along the axial direction of the accommodating cavity, and the circumferential side wall of the thrust piece and the second communication groove are matched to form the communication structure.

In one embodiment, one end of the second communicating groove may extend to the spout.

In one embodiment, the fire suppression apparatus further comprises a pressure relief member located on a side of the storage chamber adjacent the spout;

the pressure relief piece is used for enabling the storage cavity to be communicated with the nozzle when the storage cavity reaches a second preset pressure value.

In one embodiment, the pressure relief member is a sticker, a pressure relief valve, a pressure relief diaphragm, or an aluminum film.

In one embodiment, the gas generant comprises an aerosol gas generant; and/or

The fire extinguishing agent is a dry powder fire extinguishing agent.

In one embodiment, the fire extinguishing apparatus further includes a guide member disposed in the accommodating chamber, the guide member extending in an axial direction of the accommodating chamber, and the thrust member is provided with a fitting portion that fits with the guide member.

In one embodiment, the fire extinguishing apparatus further comprises a plurality of annular emitting members, and the plurality of annular emitting members are arranged at the nozzle and are sequentially arranged from the center of the nozzle to the outside at intervals.

In one embodiment, the annular emitting member has an inner diameter gradually increasing from the inside of the accommodating chamber to the outside of the accommodating chamber through the spout in the axial direction of the accommodating chamber.

According to the fire extinguishing device, after the gas generating agent is ignited by the ignition part, the gas generating agent generates gas, the gas is gathered in the gas generating cavity, so that the pressure in the gas generating cavity is gradually increased, when the pressure value in the gas generating cavity reaches a first preset pressure value, the pressure forces the thrust part to move towards the nozzle along the axial direction of the containing cavity, so that the fire extinguishing agent is sprayed out from the nozzle, meanwhile, in the moving process, part of the gas can flow from the gas generating cavity to the inside of the storage cavity through the communicating structure, the fire extinguishing agent is sprayed out from the nozzle along with the gas flow, then, as the fire extinguishing agent is sprayed out from the nozzle, the space of the storage cavity is vacant, the resistance of the thrust part is reduced, the gas can push the thrust part to continuously move towards the nozzle, the space of the storage cavity is further reduced, the generation of turbulent flow in the vacant space.

Drawings

Fig. 1 is a schematic cross-sectional view of a fire extinguishing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the fire suppression apparatus of FIG. 1 in another state;

FIG. 3 is a schematic cross-sectional view of a fire extinguishing apparatus according to another embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of the fire suppression apparatus of FIG. 3 in another state;

fig. 5 is a schematic structural view of an annular emitting member of a fire extinguishing apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention 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 invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. 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 invention, 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, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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 invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; 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 invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. 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.

Referring to fig. 1, fig. 1 is a schematic cross-sectional view illustrating a fire extinguishing apparatus according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view illustrating another state 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 invention.

Referring to the drawings, an embodiment of the present invention provides a fire extinguishing apparatus 100, including a fire extinguishing container 10, a thrust member 20, a gas generating structure 30, and a fire extinguishing agent 40.

The fire extinguishing container 10 has a containing chamber 11, and one end is provided with a spout 12 communicating with the containing chamber 11, and a thrust member 20 is provided in the containing chamber 11, and divides the containing chamber 11 into a gas generating chamber 111 provided independently of each other and a storage chamber 112 communicating with the spout 12 in the axial direction of the containing chamber 11.

The gas generating structure 30 comprises a igniting component 31 and a gas generating agent 32, wherein the gas generating agent 32 is filled in the gas generating cavity 111, the igniting component 31 is used for igniting the gas generating agent 32, and the fire extinguishing agent 40 is filled in the storage cavity 112.

The thrust member 20 is used for gathering gas generated after the gas generating agent 32 is ignited by the ignition member 31 in the gas generating cavity 111, when the gas generating cavity 111 reaches a first preset pressure value, the fire extinguishing agent 40 is sprayed out of the nozzle along the axial direction of the accommodating cavity 11 towards one end of the nozzle 12, and a communication structure for communicating the gas generating cavity 111 and the storage cavity 112 is formed between the circumferential side wall of the thrust member 20 and the inner wall of the storage cavity in a matching manner.

Thus, after the gas generating agent 32 is ignited by the ignition component 31, the gas generating agent 32 generates gas, the gas is gathered in the gas generating cavity 111 to gradually increase the pressure in the gas generating cavity 111, when the pressure value in the gas generating chamber 111 reaches the first preset pressure value, the pressure forces the thrust member 20 to move toward the nozzle 12 along the axial direction of the accommodating chamber 11, so that the fire extinguishing agent 40 is sprayed out from the nozzle 12, and at the same time, during the moving process, part of the gas will flow from the gas generating chamber 111 to the inside of the storage chamber 112 through the communicating structure, so as to cause the fire extinguishing agent 40 to be sprayed out from the nozzle 12 along with the gas flow, and then, as the fire extinguishing agent 40 is sprayed from the nozzle 12, the space of the storage chamber 112 is left vacant, the resistance of the thrust member 20 is reduced, the gas pushes the thrust member 20 to continue moving toward the nozzle 12, thereby reducing the space of the storage chamber 112, avoiding the generation of turbulent flow in the vacant space, and ensuring that the fire extinguishing agent 40 can be completely sprayed.

In the embodiment of the present invention, the fire extinguishing agent 40 includes a dry powder fire extinguishing agent, and may be other fire extinguishing agents 40, such as a water-based fire extinguishing agent, etc., without limitation. The gas generating agent 32 comprises an aerosol gas generating agent, and specifically, the aerosol gas generating agent is in one or any combination of powder, granule, tablet or block. In a preferred embodiment, the fire extinguishing agent 40 of the fire suppression apparatus 100 comprises a dry powder fire extinguishing agent and the gas generating agent 32 comprises an aerosol gas generating agent.

Referring again to fig. 1, in some embodiments, the fire extinguishing container 10 is cylindrical, and in other embodiments, the fire extinguishing container 10 may have other shapes, such as a conical shape, a rectangular shape, etc., without limitation.

In some embodiments, the fire extinguishing container 10 includes a cylindrical container body, a rear cover and a front cover detachably mounted to both ends of the cylindrical container body, wherein the front cover is provided with a spout 12. The arrangement of the rear cover and the front cover facilitates the filling of the gas generating agent 32 and the fire extinguishing agent 40 in the gas generating chamber 111 and the storage chamber 112 on both sides of the thrust member 20.

In some embodiments, the thrust piece 20 is in the form of a sheet or a cover, in particular, the outer contour of the thrust piece 20 may match the inner cavity contour of the receiving cavity 11, for example, when the receiving cavity 11 is cylindrical, the thrust piece 20 is in the form of a circular sheet or a circular cover.

In some embodiments, the circumferential side wall of the thrust member 20 is provided with a first communication groove 21 penetrating through the thrust member 20 along the axial direction of the accommodating cavity 11, the inner wall of the accommodating cavity 11 is provided with a sealing convex part 113 matched with the first communication groove 21 at the boundary of the gas generating cavity 111 and the storage cavity 112, and the first communication groove 21 and the inner wall of the storage cavity 112 are matched to form a communication structure. Thus, in the initial state of the fire extinguishing apparatus 100, i.e. the state that the gas generating agent 32 is not ignited, the first communicating groove 21 is located at the boundary of the gas generating chamber 111 and the storage chamber 112 and is matched with the sealing convex part 113, so that the gas generating chamber 111 and the storage chamber 112 are not communicated with each other, when the gas generating agent 32 is ignited, the pressure in the gas generating chamber 111 forces the thrust piece 20 to move towards the nozzle 12, so that the first communicating groove 21 is separated from the sealing convex part 113, and a communicating structure for communicating the gas generating chamber 111 and the storage chamber 112 is formed between the first communicating groove 21 and the inner wall of the storage chamber 112 in a matching manner, and the communicating structure is simple in arrangement mode.

It is to be noted that the sealing protrusion 113 may extend in the axial direction of the accommodating chamber 11 so that both ends thereof may penetrate into the gas generating chamber 111 and the storage chamber 112, so that there is a certain offset stroke between the first communicating recess 21 and the sealing protrusion 113 in the axial direction of the accommodating chamber 11 to ensure a tight fit between the first communicating recess 21 and the sealing protrusion 113 before the gas generant 32 is ignited.

In another embodiment, as shown in fig. 3 and 4, the inner wall of the storage chamber 112 is provided with a second communication groove 1121 extending in the axial direction of the accommodating chamber 11, and a communication structure is formed by the circumferential side wall of the thrust member 20 and the second communication groove 1121 in cooperation. Thus, in the initial state of the fire extinguishing apparatus 100, i.e. the state that the gas generating agent 32 is not ignited, the circumferential side wall of the thrust member 20 is in sealing fit with the inner wall of the storage cavity 112, so that the gas generating cavity 111 is not communicated with the storage cavity 112, and when the gas generating agent 32 is ignited, the pressure in the gas generating cavity 111 forces the thrust member 20 to move towards the nozzle 12, so that when the thrust member 20 passes through the second communication groove 1121, the circumferential side wall of the thrust member 20 is matched with the second communication groove 1121 to form a communication structure for communicating the gas generating cavity 111 with the storage cavity 112, and the communication structure is simple in arrangement mode.

Further, one end of the second communication groove 1121 may extend to the spout 12. In this manner, the action of the air flow continues until the end of the storage chamber 112 adjacent the discharge spout 12, further ensuring that the fire suppressant 40 is fully dispensed.

In some embodiments, the fire extinguishing apparatus 100 further includes a guide member disposed in the accommodating chamber 11, the guide member extending in an axial direction of the accommodating chamber 11, and the thrust member 20 is provided with a fitting portion that fits with the guide member. Thus, the thrust member 20 can move stably along the axial direction of the accommodating cavity 11 under the action of the guide member, and the overturning caused by uneven pressure in the moving process is avoided.

Specifically, the guide member includes a guide rod, and the fitting portion includes a fitting hole through which the guide rod passes to guide the thrust member 20 to move in the axial direction of the accommodating chamber 11. More specifically, the center of the guide bar coincides with the center line of the accommodating chamber 11, and the center of the fitting hole coincides with the center line of the accommodating chamber 11.

In another embodiment, the guiding member includes a guiding groove or a guiding protrusion opened on the inner wall of the accommodating chamber 11, and the engaging portion includes an engaging protrusion or an engaging groove provided along the circumferential side wall of the thrust member 20, specifically, the guiding groove or the guiding protrusion may include a plurality of guiding grooves or a plurality of guiding protrusions provided at intervals in the circumferential direction along the inner wall of the accommodating chamber 11. Specifically, the cross-sectional shapes of the guide groove and the fitting convex portion and the guide convex portion and the fitting groove are circular arc shapes.

In other embodiments, the guiding element may include a combination of at least two of a guiding rod, a guiding groove, or a guiding protrusion, and the matching portion is correspondingly disposed, which is not limited herein.

Referring now to fig. 1, in some embodiments, the fire suppression apparatus 100 further includes a pressure relief member 50, the pressure relief member 50 being located on a side of the storage chamber 112 adjacent the nozzle 12, the pressure relief member 50 being configured to communicate the storage chamber 112 with the nozzle 12 when the storage chamber 112 reaches a second predetermined pressure value.

Further, the fire extinguishing apparatus 100 further includes a dispersion chamber 60, the dispersion chamber 60 is disposed on one side of the storage chamber 112 away from the gas generation chamber 111 along the axial direction of the accommodating chamber 11, the pressure relief member 50 is used for separating the dispersion chamber 60 and the storage chamber 112 into independent settings, the pressure relief member 50 is used for communicating the dispersion chamber 60 with the storage chamber 112 when the storage chamber 112 reaches a second preset pressure value, and the storage chamber 112 is communicated with the nozzle 12 through the dispersion chamber 60.

Thus, the use of the pressure relief member 50 allows, on the one hand, the storage chamber 112 to be sealed, thereby protecting the fire extinguishing agent 40 from the external environment and prolonging its life, and, on the other hand, the pressure relief member 50 allows the fire extinguishing agent 40 to be subjected to a certain pressure relief before being ejected from the nozzle 12, thereby increasing the initial velocity of the fire extinguishing agent 40 from being ejected from the nozzle 12. The dispersion chamber 60 can provide a sufficient pressure relief stroke space for the pressure relief element 50, so as to avoid the situation that the pressure relief element 50 cannot be relieved due to influence of other components of the fire extinguishing apparatus 100 during the pressure relief process.

Specifically, the pressure relief 50 may be a sticker, a pressure relief valve, a pressure relief diaphragm, or an aluminum film.

In a particular embodiment, pressure relief member 50 is a sticker, such as a plastic sticker, adhesive tape, or the like. The scratch sticker can be broken under the pressure when the storage chamber 112 is larger than or equal to the second preset pressure value, and the fire extinguishing agent 40 and the fire extinguishing substance in the storage chamber 112 are sprayed outwards through the broken part of the sticker.

In another embodiment, the pressure relief member 50 is a pressure relief valve that closes when the pressure in the storage chamber 112 is less than a second predetermined pressure value. When the pressure in the storage chamber 112 is greater than or equal to the second preset pressure value, the relief valve is opened, and the fire extinguishing agent 40 and the fire extinguishing substance in the storage chamber 112 are sprayed out through the relief valve.

In yet another embodiment, the pressure relief member 50 is a pressure relief diaphragm that ruptures when the pressure within the storage chamber 112 is greater than or equal to a second predetermined pressure value. Further, at least one indentation is formed on the pressure relief diaphragm, and when the pressure in the storage chamber 112 is greater than or equal to a second preset pressure value, the pressure relief diaphragm is broken along the indentation, and the fire extinguishing agent 40 and the fire extinguishing substance in the storage chamber 112 are sprayed outwards through the broken part of the pressure relief diaphragm.

Further, when the pressure relief member 50 may be a sticker, a pressure relief membrane, or an aluminum film, the front cover and the container body may be used in cooperation to complete the fixation of the pressure relief member 50 with respect to the fire extinguishing container 10.

In some embodiments, the ignition member 31 is a heat-sensitive wire, one end of which extends into the gas generation chamber 111 and the other end of which is located outside the gas generation chamber 111.

Specifically, one end of the heat-sensitive wire extends into the gas generating cavity 111, and the other end is located outside the fire extinguishing container 10. Ignition of the gas generant 32 may be facilitated by igniting the heat wire, thereby igniting the gas generant 32.

In another embodiment, the ignition member 31 may also be an electrical initiator. The fire suppression apparatus 100 also includes a controller (not shown), a detector (not shown), and an electrical initiator (not shown). The detector is used for detecting fire and sending a fire signal to the controller. One end of the electrical initiator extends into the gas generation chamber 111. The controller is used to control the electrical initiator to ignite the gas generant 32.

Specifically, the controller may be an industrial personal computer, a PLC controller, an MCU controller, or the like. The detector may be a temperature sensitive detector. The temperature sensitive detector can detect the occurrence of fire by sensing temperature. The fire signal is a temperature abnormal signal. When the temperature detector senses that the temperature is abnormal, the temperature abnormal signal is sent to the controller, and the controller controls the electric initiator to start, so that the electric initiator ignites the gas generating agent 32.

In other embodiments, the detector may also be a smoke detector. The smoke detector can detect the occurrence of fire by sensing the smoke concentration. The fire signal is a smoke concentration abnormal signal. When the smoke detector senses that the smoke concentration is abnormal, a smoke concentration abnormal signal is sent to the controller, the controller controls the electric initiator to start, and the electric initiator ignites the aerosol fire extinguishing agent 32. The detector may also be a combustible gas detector. The combustible gas detector can detect the occurrence of fire by sensing the concentration of combustible gas. The fire signal is a combustible gas concentration abnormal signal. When the combustible gas detector senses that the concentration of the combustible gas is abnormal, the combustible gas concentration abnormal signal is sent to the controller, and the controller controls the electric initiator to start, so that the electric initiator ignites the aerosol fire extinguishing agent 32.

Referring again to fig. 1 and 5, in some embodiments, the fire extinguishing apparatus 100 further includes a plurality of annular emitting members 70, and the plurality of annular emitting members 70 are disposed at the nozzle 12 and are sequentially spaced from the center of the nozzle 12 to the outside. The provision of the annular emanator 70 may help to better disperse and evenly spray the fire suppressant 40 and the fire suppressant material from the nozzle 12.

Further, the inner diameter of the annular emitting member 70 is gradually increased from the inside of the accommodating chamber 11 to the outside of the accommodating chamber 11 through the spout 12 in the axial direction of the accommodating chamber 11. Thus, the annular diffusing member 70 can guide the fire extinguishing agent 40 and the fire extinguishing substance to scatter the fire extinguishing agent 40 and the fire extinguishing substance when the fire extinguishing agent 40 and the fire extinguishing substance are sprayed, thereby enlarging the fire extinguishing area of the fire extinguishing apparatus 100.

It is noted that the plurality of ring-shaped emitting members 70 have a fixing member therebetween for fixing the plurality of ring-shaped emitting members 70 at the spouting port 12.

The fire extinguishing apparatus 100 of the present invention, after the ignition member 31 ignites the gas generating agent 32, the gas generating agent 32 generates gas, the gas is gathered in the gas generating chamber 111 to gradually increase the pressure in the gas generating chamber 111, when the pressure value in the gas generating chamber 111 reaches the first predetermined pressure value, the pressure forces the thrust member 20 to move toward the nozzle 12 along the axial direction of the accommodating chamber 11, so that the fire extinguishing agent 40 is sprayed out from the nozzle 12, meanwhile, during the moving process, part of the gas also flows from the gas generating chamber 111 to the inside of the storage chamber 112 through the communicating structure, so as to force the fire extinguishing agent 40 to be sprayed out from the nozzle 12 along with the gas flow, and then, since the fire extinguishing agent 40 is sprayed out from the nozzle 12, the space of the storage chamber 112 is vacant, the resistance of the thrust member 20 is reduced, the gas can push the thrust member 20 to continue to move toward the nozzle 12, thereby reducing the space of the storage chamber 112, and avoiding the generation of the, ensuring that the fire extinguishing agent 40 can be completely sprayed.

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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A fire suppression apparatus, comprising:

the fire extinguishing agent is filled in the storage cavity;

2. The fire extinguishing apparatus according to claim 1, wherein the circumferential side wall of the thrust member is provided with a first communicating groove penetrating the thrust member in the axial direction of the accommodating chamber, and the inner wall of the accommodating chamber is provided with a sealing convex portion cooperating with the first communicating groove at the boundary of the gas generating chamber and the storage chamber;

3. The fire extinguishing apparatus according to claim 1, wherein the inner wall of the storage chamber is provided with a second communication groove extending in the axial direction of the accommodating chamber, and the circumferential side wall of the thrust member and the second communication groove cooperate to form the communication structure.

4. The fire extinguishing apparatus of claim 3, wherein one end of the second communication groove may extend to the spout.

5. The fire suppression apparatus of claim 1, further comprising a pressure relief member located on a side of the storage chamber proximate the spout;

6. The fire suppression apparatus of claim 5, wherein the pressure relief member is a sticker, a pressure relief valve, a pressure relief diaphragm, or an aluminum film.

7. The fire suppression apparatus of claim 1, wherein the gas generant comprises an aerosol gas generant; and/or

The fire extinguishing agent is a dry powder fire extinguishing agent.

8. The fire extinguishing apparatus according to claim 1, further comprising a guide member provided in the accommodation chamber, the guide member extending in an axial direction of the accommodation chamber, the thrust member being provided with an engaging portion that engages with the guide member.

9. The fire extinguishing apparatus of claim 1, further comprising a plurality of annular emitting members disposed at the spout and spaced apart from each other gradually from a center of the spout.

10. The fire extinguishing apparatus according to claim 9, wherein an inner diameter of the annular diffusing member gradually increases from an inside of the accommodating chamber to an outside of the accommodating chamber through the spout in an axial direction of the accommodating chamber.