Dry powder fire extinguishing device

Abstract

The utility model relates to a dry powder fire extinguishing device. The dry powder fire extinguishing device comprises an eruption tank and a partitioned eruption structure, a nozzle is formed in the end part of the spraying tank in the first direction; the partitioned spraying structure is connected to the spraying tank and comprises at least one guide piece, the guide piece is arranged on a spraying path of the spraying opening and provided with a guide face corresponding to the spraying opening, the guide face is provided with a first end and a second end, the first end is closer to the spraying opening in the first direction than the second end, and the second end is closer to the spraying opening in the second direction than the first end. The guide surface is used for sending out dry powder sprayed by the nozzle along a preset direction; when the nozzle sprays out dry powder, the dry powder is sent to a specific position in the direction determined by the guide face instead of being evenly sprayed to the periphery in an annular mode in the prior art, the guide piece can conduct the targeted partition diffusion effect on the dry powder extinguishing agent in the spraying process, and the utilization rate of the dry powder extinguishing agent is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of public fire safety equipment, in particular to a dry powder fire extinguishing device. Background Art

[0002] The non-pressure storage suspended ultra-fine dry powder fire extinguishing device is mainly composed of the device shell or tank, the propellant assembly, the electric (or combustion) initiator and other components. When a fire occurs, the propellant assembly of the fire extinguishing device is electrically / thermally activated, and the electric initiator in the propellant assembly is ignited, causing the propellant to instantly produce a large amount of gas and generate high pressure to break the sealed aluminum foil at the nozzle, driving the dry powder fire extinguishing agent to be instantly released from the nozzle within 1 second to extinguish the fire.

[0003] The nozzle assembly of a traditional non-storage dry powder fire extinguishing device is often set outside the nozzle of the device. After the spray, the dry powder fire extinguishing agent impacts and spreads on the nozzle assembly. In the prior art, this structure is generally circular, and the dry powder fire extinguishing agent will spread in a circular coverage area in the spraying direction. In some areas where a large amount of fire extinguishing agent is required for fixed-point coverage, such as the fire points of urban integrated pipe corridors, most of which are on both sides of the corridor walkway. If the above structure is still used for fire extinguishing, the fire extinguishing efficiency of the dry powder fire extinguishing agent cannot be maximized, resulting in ineffective waste of dry powder fire extinguishers. Utility Model Content

[0004] Based on the above description, the utility model provides a dry powder fire extinguishing device to solve the technical problem in the prior art that the dry powder fire extinguishing agent diffuses in a circular coverage area and cannot meet the need for a large amount of fire extinguishing agent to cover fixed points.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A dry powder fire extinguishing device, comprising a spray tank and a partitioned spraying structure;

[0007] The end of the spray can along the first direction has a spray port;

[0008] The partitioned spraying structure is connected to the spraying can and includes at least one guide member, the guide member is arranged on the spraying path of the nozzle, the guide member has a guide surface corresponding to the nozzle, the guide surface has a first end and a second end, the first end is closer to the nozzle in a first direction than the second end, and the guide surface is used to send the dry powder sprayed from the nozzle along a predetermined direction.

[0009] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0010] The dry powder fire extinguishing device provided in the present application adopts the form of a guide surface provided on the guide member, so that when the dry powder is sprayed out from the nozzle, the dry powder is sent to a specific position along the direction determined by the guide surface, rather than being sprayed uniformly around in a ring shape as in the prior art. The guide member can carry out targeted zoning diffusion of the dry powder fire extinguishing agent during the spraying process, thereby improving the utilization rate of the dry powder fire extinguishing agent.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, there are two guide members, the two guide members are symmetrically arranged along a predetermined vertical plane, and the guide surfaces corresponding to the two guide members are spaced apart from each other.

[0013] Furthermore, the guide member includes a guide plate.

[0014] In a technical solution, the guide plate is a straight plate inclined at a predetermined angle.

[0015] In another technical solution, the guide plate is a shaped plate that is at least partially smoothly curved.

[0016] Furthermore, the partitioned spraying structure also includes a connecting portion, which is used to be connected to the spray tank, and one end of the guide member close to the nozzle is connected to the connecting portion.

[0017] Furthermore, the connecting portion includes a vertically arranged connecting plate, and the two guiding members are symmetrically arranged on both sides of the connecting plate.

[0018] Furthermore, the connecting plate is arranged in the middle of the eruption path.

[0019] Furthermore, the spray can has a plurality of spray nozzles; the projection of any of the spray nozzles along its spraying direction on the corresponding guide surface completely falls on the guide surface.

[0020] Furthermore, the spray tank includes a tank body, a hairspray, a dry powder, an initiator and a mounting ring, the nozzle is arranged at one end of the tank body along a first direction, the mounting ring is connected to the outside of the tank body, the hairspray and the dry powder are placed inside the tank body and stored separately, and the initiator is electrically and / or thermally activated to trigger the hairspray to generate high pressure, driving the dry powder to be sprayed out from the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a dry powder fire extinguishing device provided in an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the structure of the partitioned eruption structure in the embodiment of the present application;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure viewed from above;

[0024] Figure 4 This is a schematic diagram of the structure of a dry powder fire extinguishing device in an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, the element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0028] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0029] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0030] The embodiment of the present application provides a dry powder fire extinguishing device, which includes a spray tank 10 and a partitioned spray structure 20.

[0031] Among them, the spray tank 10 has a nozzle at the end along the first direction. It can be understood that the setting of the first direction varies with the installation position of the dry powder fire extinguishing device and the spraying scene. For example, in a suspended structure, the first direction is the vertical direction; in a horizontal spraying scene, the first direction is the horizontal direction.

[0032] The partitioned spraying structure 20 is connected to the spraying tank 10 and includes at least one guide member 21, which is arranged on the spraying path of the nozzle. The guide member 21 has a guide surface 211 corresponding to the nozzle, and the guide surface 211 has a first end 21a and a second end 21b. The first end 21a is closer to the nozzle in the first direction than the second end 21b. The guide surface 211 is used to send the dry powder sprayed from the nozzle along a predetermined direction.

[0033] As in the preferred embodiment of the present application, the number of guide members 21 is two, and the two guide members 21 are symmetrically arranged along a predetermined vertical plane. The guide surfaces 211 corresponding to the two guide members 21 are separated from each other. After adopting the above structure, the dry powder sprayed from the nozzle is guided to the two guide surfaces 211, and the dry powder fire extinguishing agent is diffused to both sides in a targeted manner during the spraying process. For some scenarios, such as both sides of the walkway of the city's comprehensive pipeline corridor, the use efficiency of the dry powder fire extinguishing agent can be effectively increased.

[0034] In a preferred embodiment of the present application, the guide member 21 includes a guide plate 212 .

[0035] like Figure 2 As shown, the guide plate 212 may be a straight plate inclined at a predetermined angle.

[0036] like Figure 1 As shown, in another technical solution, the guide plate 212 is a shaped plate that is at least partially smoothly curved.

[0037] It is understandable that the structure and shape of the guide plate 212 can be individually set according to different usage scenarios to ensure that the use of the dry powder fire extinguishing agent is more targeted.

[0038] The guide surface on the guide member 21 can be directly attached to the nozzle position, or there can be a certain distance between them, such as Figure 1 As shown, the partitioned spraying structure 20 further includes a connecting portion 22 , which is used to be connected to the spray tank 10 , and one end of the guide 21 close to the nozzle is connected to the connecting portion 22 .

[0039] Specifically, in this embodiment, the connecting portion 22 includes a vertically arranged connecting plate 221, and two guide members 21 are symmetrically arranged on both sides of the connecting plate.

[0040] The connecting plate 221 is arranged in the middle of the eruption path. The connecting plate 221 can be an integrally formed structure with the nozzle part, or a detachable connection structure, such as a bolt connection or a crimping connection.

[0041] Preferably, the lower end of the spray can 10 has a plurality of nozzles; the projection of any nozzle along its spraying direction on the corresponding guide surface 211 completely falls on the guide surface 211.

[0042] In this way, no matter the dry powder fire extinguishing device is placed horizontally or vertically, since the partitioned spraying structure 20 is always on the spraying axis and close to the nozzle, and the guide surface completely covers the spraying path of the nozzle, the expected spraying effect can be achieved regardless of the installation method.

[0043] In the embodiments of the present application, Figure 4 As shown, the spray can 10 includes a can body 11, a spray agent, a dry powder, an initiator 14 and a mounting ring 15. It is understood that the shape of the can body 11 can be as follows: Figure 1 The square tank structure in the figure can also be Figure 4 The circular tank structure in

[0044] The nozzle is arranged at the lower end of the tank body 11 along a first direction (the up and down direction in the figure), and the mounting ring 15 is connected to the upper end of the tank body. The propellant and dry powder are placed inside the tank body 11 and stored separately. The initiator 14 is electrically started (can also be started by combustion) to trigger the propellant 12 to generate high pressure, driving the dry powder to be sprayed out from the nozzle.

[0045] In summary, the dry powder fire extinguishing device provided in the present application adopts the form of setting a guide surface 211 on the guide member 21, so that when the dry powder is sprayed out of the nozzle, the dry powder is sent to a specific position along the direction determined by the guide surface 211, such as to both sides of the corridor walkway, instead of being sprayed uniformly around in a ring shape as in the prior art. The guide member 21 can perform targeted zoning diffusion on the dry powder fire extinguishing agent during the spraying process, thereby improving the utilization rate of the dry powder fire extinguishing agent.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dry powder fire extinguishing device, characterized in that: Includes eruption tanks and partitioned eruption structures; The end of the spray can along the first direction has a spray port; The partitioned spraying structure is connected to the spray tank and includes at least one guide member, which is arranged on the spraying path of the nozzle. The guide member has a guide surface corresponding to the nozzle, and the guide surface has a first end and a second end. The first end is closer to the nozzle in a first direction than the second end. The guide surface is used to send the dry powder sprayed from the nozzle along a predetermined direction.

2. The dry powder fire extinguishing device according to claim 1, characterized in that: There are two guide members, the two guide members are symmetrically arranged along a predetermined vertical plane, and the guide surfaces corresponding to the two guide members are spaced apart from each other.

3. The dry powder fire extinguishing device according to claim 2, characterized in that: The guide member includes a guide plate.

4. The dry powder fire extinguishing device according to claim 3, characterized in that: The guide plate is a straight plate inclined at a predetermined angle.

5. The dry powder fire extinguishing device according to claim 3, characterized in that: The guide plate is a shaped plate which is at least partially smoothly curved.

6. The dry powder fire extinguishing device according to any one of claims 2 to 5, characterized in that: The partitioned spraying structure further includes a connecting portion, which is used to be connected to the spray tank, and one end of the guide member close to the nozzle is connected to the connecting portion.

7. The dry powder fire extinguishing device according to claim 6, characterized in that: The connecting portion comprises a vertically arranged connecting plate, and the two guiding members are symmetrically arranged on both sides of the connecting plate.

8. The dry powder fire extinguishing device according to claim 7, characterized in that: The connecting plate is arranged in the middle of the eruption path.

9. The dry powder fire extinguishing device according to claim 1, characterized in that: The spray can has a plurality of spray nozzles; the projection of any of the spray nozzles along the spraying direction on the corresponding guide surface completely falls on the guide surface.

10. The dry powder fire extinguishing device according to claim 1, characterized in that: The hairspray tank includes a tank body, hairspray, dry powder, an initiator and a mounting ring, the nozzle is arranged at one end of the tank body along a first direction, the mounting ring is connected to the outside of the tank body, the hairspray and dry powder are placed inside the tank body and stored separately, and the initiator is activated electrically and / or thermally to trigger the hairspray to generate high pressure, thereby driving the dry powder to be sprayed out from the nozzle.

Images