High-capacity non-stored-pressure fire extinguishing device
The large-capacity non-pressure storage fire extinguishing device addresses the issue of ineffective fire suppression by using a dual-cavity design with a gas generating agent and fire extinguishing agent, ensuring efficient and continuous downward spray to extinguish fires below its suspension point.
Patent Information
- Application Number
- CN202420575162.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-22
AI Technical Summary
Non-pressure storage fire extinguishing devices with small capacity are ineffective in extinguishing fires below their suspension point, as the pressure increase from the gas generating agent is insufficient to ensure the fire extinguishing agent reaches and covers the fire source effectively.
A large-capacity non-pressure storage fire extinguishing device with an upper cavity containing a gas generating agent and a lower cavity filled with fire extinguishing agent, where the generated aerosol from the gas generating agent flushes out the fire extinguishing agent downward, utilizing gravity to enhance impact speed and ensure continuous coverage of the fire source.
The device efficiently and continuously sprays fire extinguishing agent downward to effectively extinguish fires below, leveraging the aerosol's gravity-driven impact to ensure thorough coverage and rapid fire suppression.
Smart Images
Figure CN222218476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fire fighting equipment, in particular to a large-capacity non-pressure storage type fire extinguishing device. Background Art
[0002] Non-pressure storage fire extinguishing devices are usually fixedly suspended from the ceiling. When a fire occurs, the gas generating agent inside is triggered, producing a large amount of aerosol, causing the internal pressure to increase sharply, driving the dry powder fire extinguishing agent to spray downwards, covering the fire source, and thus extinguishing the fire. After the non-pressure storage fire extinguishing device is suspended, it is at a high position and has a small capacity. Even if a fire occurs below, it is difficult to ensure that the fire source is extinguished, resulting in failure of fire extinguishing.
[0003] Therefore, there is an urgent need for a large-capacity non-pressure storage fire extinguishing device that can effectively extinguish the fire source below to overcome the above-mentioned defects. Utility Model Content
[0004] The utility model aims to provide a large-capacity non-pressure storage type fire extinguishing device which can effectively extinguish the fire source below.
[0005] To achieve the above-mentioned purpose, the utility model provides a large-capacity non-pressure storage type fire extinguishing device, which is suitable for hanging installation. The large-capacity non-pressure storage type fire extinguishing device of the utility model comprises a shell, a diffusible fire extinguishing agent, a gas generating agent and a trigger starter, an upper cavity and a lower cavity separated from each other are arranged in the shell, the upper cavity and the lower cavity are connected through an air outlet, a jet port connected to the lower cavity is opened at the bottom of the shell, the gas generating agent is installed in the upper cavity, the fire extinguishing agent is filled in the lower cavity, and the trigger starter is installed in the shell and used to ignite the gas generating agent.
[0006] Preferably, a partition is installed in the shell to separate the upper cavity and the lower cavity, and the partition is provided with at least one air outlet.
[0007] Preferably, the bottom of the housing is an arc structure.
[0008] Preferably, the housing comprises a cylindrical shell, a hemispherical shell connected to the lower end of the cylindrical shell, and a cover plate installed on the top end of the cylindrical shell and covering the top of the cylindrical shell, and the partition is arranged at the upper end of the cylindrical shell.
[0009] Preferably, the bottom of the hemispherical shell has a layout area, and a plurality of injection ports are opened in the layout area. A shielding member is installed on the hemispherical shell and covers and seals the injection ports.
[0010] Preferably, the arrangement area is concavely arranged so that an installation groove is formed on the outer side of the arrangement area, and the shielding member is arranged in the installation groove.
[0011] Preferably, the shielding member is fitted to the arrangement area.
[0012] Preferably, the large-capacity non-pressure storage fire extinguishing device of the utility model also includes a connecting plate, which is stacked and installed above the cover plate. The connecting plate is provided with a mounting groove, and a through hole passes through the connecting plate and the cover plate and is connected to the upper cavity. The through hole is also connected to the mounting groove, and the trigger starter penetrates into the upper cavity through the through hole and is connected to the gas generating agent.
[0013] Preferably, the mounting groove includes two intersecting straight grooves, and ends of the straight grooves penetrate to the peripheral side of the connecting plate.
[0014] Preferably, the large-capacity non-pressure storage type fire extinguishing device of the present invention further comprises a mounting plate, which is stacked and mounted on the connecting plate, and the surrounding of the mounting plate extends beyond the connecting plate.
[0015] Compared with the prior art, the utility model sets an upper cavity and a lower cavity one above the other, the upper cavity is filled with a gas generating agent, and the lower cavity is filled with a fire extinguishing agent. The ignited gas generating agent generates an aerosol that rushes downward to the lower cavity, flushing out the fire extinguishing agent in the lower cavity, and the fire extinguishing agent is also directly sprayed downward. It can be seen that this design helps to guide the fire extinguishing agent to impact the fire source downward and directly reach the fire core of the fire source below, and it uses its own gravity to speed up the impact speed, so as to quickly, efficiently and continuously cover the fire source. Moreover, the fire extinguishing device adopts a large-capacity structure, which can continuously spray fire extinguishing agent for a considerable period of time to ensure that the fire source is effectively extinguished. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional diagram of a large-capacity non-pressure storage type fire extinguishing device of the utility model.
[0017] Figure 2 It is a three-dimensional diagram of the large-capacity non-pressure storage type fire extinguishing device of the utility model after the mounting plate is separated.
[0018] Figure 3 The utility model of large-capacity non-pressure storage type fire extinguishing device is further separated after the trigger starter is hidden. Figure 2 A three-dimensional view of the connection plate.
[0019] Figure 4 It is a three-dimensional diagram of the large-capacity non-pressure storage type fire extinguishing device of the utility model after the shielding piece is separated.
[0020] Figure 5 It is a front view of the large-capacity non-pressure storage type fire extinguishing device of the utility model after the shielding member is hidden.
[0021] Figure 6 is along Figure 5 Sectional view after cutting along the AA line segment. DETAILED DESCRIPTION
[0022] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the embodiments and the accompanying drawings.
[0023] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the utility model provides a large-capacity non-pressure storage type fire extinguishing device 100, which has a large capacity and a large content of the fire extinguishing agent sprayed out, can ensure that the fire source is extinguished and effectively extinguish the fire, and is usually used in production workshops, parking sheds, shopping malls and other occasions, but is not limited to the above occasions. The large-capacity non-pressure storage type fire extinguishing device 100 of the utility model is suitable for hanging installation, and is usually installed on a beam, a ceiling, a ceiling or a wall.
[0024] The large-capacity non-pressure storage type fire extinguishing device 100 of the utility model comprises a housing 10, a fire extinguishing agent, a gas generating agent 20 and a trigger starter 30. An upper cavity 11 and a lower cavity 12 are provided in the housing 10, and the upper cavity 11 and the lower cavity 12 are connected through an air outlet 13. A jet port 14 connected to the lower cavity 12 is provided at the bottom of the housing 10. The gas generating agent 20 is installed in the upper cavity 11, the fire extinguishing agent is filled in the lower cavity 12, and the trigger starter 30 is installed in the housing 10 and used to ignite the gas generating agent 20.
[0025] When a fire occurs, the trigger initiator 30 is triggered and responds, igniting the gas generator 20, which instantly generates a large amount of aerosol-like substances, and the pressure of the upper cavity 11 increases sharply, and the gas is discharged through the gas outlet 13 along the gas outlet 13. Figure 6 The arrow M in the middle flows into the lower cavity 12, presses out the fire extinguishing agent in the lower cavity 12, and the fire extinguishing agent mixed aerosol rapidly flows along the injection port 14. Figure 5 and Figure 6 It sprays downward in the direction of the middle arrow N, instantly covering the fire source below, and continues to spray the fire extinguishing agent for a considerable period of time to ensure that the fire source is effectively extinguished.
[0026] The utility model arranges an upper cavity 11 and a lower cavity 12 one above the other, the upper cavity 11 is filled with a gas generating agent 20, and the lower cavity 12 is filled with a fire extinguishing agent. The ignited gas generating agent 20 generates an aerosol that rushes downward toward the lower cavity 12, flushing out the fire extinguishing agent in the lower cavity 12, and the fire extinguishing agent is also directly sprayed downward and rushed out. It can be seen that this design helps to guide the fire extinguishing agent to impact the fire source downward and directly reach the fire core of the fire source below, and uses its own gravity to accelerate the speed of impact, so as to quickly, efficiently and continuously cover the fire source and ensure the fire extinguishing effect.
[0027] The fire extinguishing agent can be selected as an ultra-fine dry powder fire extinguishing agent, a foam fire extinguishing agent or an aqueous solution. In the embodiment provided by the utility model, the fire extinguishing agent is selected as an ultra-fine dry powder fire extinguishing agent. At this time, the gas generator 20 is preferably a gas generator with a large gas production and a low water content in the gas production (to prevent the water from being incorporated into the fire extinguishing agent during the injection process to form agglomerates and block the injection port 14). The gas product is mostly an organic high-nitrogen gas generator 20 of environmentally friendly nitrogen, such as a gas generator 20 with nitroguanidine as a gas generator. The gas generator 20 is made into an aerosol generator of columnar, blocky, or lumpy solid agents, which produces a large amount of aerosol-like substances when heated or burned. When the fire extinguishing agent is selected as a foam fire extinguishing agent or an aqueous solution, the water content of the gas produced by the gas generator 20 is not limited.
[0028] like Figure 6 As shown, a partition 15 is installed in the housing 10 to separate the upper cavity 11 and the lower cavity 12, and the partition 15 has at least one air outlet 13. The partition 15 is preferably a stainless steel plate, an iron plate, etc., and its melting point is about 1500°C, which is enough to withstand the temperature of the gas generating agent 20 when it burns. Preferably, in the embodiment provided by the utility model, the partition 15 is provided with one air outlet 13, and the air outlet 13 is arranged at the center of the partition 15, so as to concentrate the output of the aerosol, increase the flow rate of the aerosol output, and accelerate the impact of the fire extinguishing agent. Of course, according to actual needs, the partition 15 can also be provided with multiple air outlets 13 to allow the aerosol to flow to the lower cavity 12 faster.
[0029] It should be noted that when the fire extinguishing agent is an ultra-fine fire extinguishing agent, the air outlet 13 can be opened, and of course it can also be sealed by using paper, film or glue, but the seal is easily damaged and will be broken by a certain pressure shock. When the fire extinguishing agent is a foam fire extinguishing agent or an aqueous agent, it is necessary to use a film, glue or the like to seal the air outlet 13 to prevent the foam fire extinguishing agent or the aqueous agent from flowing into the upper cavity 11. Similarly, the seal is easily damaged and will be broken by a certain pressure shock.
[0030] like Figures 1 to 6As shown, the bottom of the shell 10 is an arc structure, and the area of the bottom of the shell 10 is large, which can withstand greater impact pressure. Further, the shell 10 includes a cylindrical shell 16, a hemispherical shell 17 connected to the lower end of the cylindrical shell 16, and a cover plate 18 installed on the top of the cylindrical shell 16. The partition 15 is arranged at the upper end of the cylindrical shell 16. The side area of the hemispherical shell 17 is large, and it can withstand greater pressure relatively speaking. Preferably, the hemispherical shell 17 is installed at the lower end of the cylindrical shell 16 by welding, and the cover plate 18 is also installed at the upper end of the cylindrical shell 16 by welding, but it is not limited to this installation method. The cylindrical shell 16, the hemispherical shell 17 and the cover plate 18 are made of iron and are made by die casting and the like. Of course, according to actual needs, the cylindrical shell 16, the hemispherical shell 17 and the cover plate 18 can also be made of other materials with high strength.
[0031] like Figure 4 , Figure 5 and Figure 6 As shown, the bottom of the hemispherical shell 17 has a layout area 171, and the layout area 171 is provided with a plurality of injection ports 14. A shielding member 19 is installed on the hemispherical shell 17 and covers and seals the injection ports 14. The layout area 171 provided can facilitate identification of the location of the injection ports 14, and the shielding member 19 can block the outflow of the fire extinguishing agent. The injection ports 14 provided in the layout area 171 are regularly or irregularly distributed and can be provided as required. Furthermore, the layout area 171 is concavely provided so that an installation groove is formed on the outside of the layout area 171, and the shielding member 19 is provided in the installation groove. The shielding member 19 is equivalent to being "embedded" in the installation groove, which improves the integrity of the structure and enhances the appearance.
[0032] Preferably, when ultrafine dry powder fire extinguishing agent is selected, the shielding member 19 is made of paper, cloth, etc., and the shielding member 19 is attached to the arrangement area 171. At this time, the shielding member 19 can be attached to the arrangement area 171 by coating adhesive on the back of the shielding member 19, or by using double-sided tape to attach the shielding member 19 to the arrangement area 171, or even by using single-sided transparent tape to attach it to the arrangement area 171 to block the outflow of ultrafine dry powder fire extinguishing agent.
[0033] However, when foam fire extinguishing agent or water agent is selected, the shielding member 19 is preferably a waterproof material, such as a plastic film, a plastic sheet, etc., which is attached to the arrangement area 171 by means of adhesive, and is sealed around to prevent leakage. The injection port 14 can even be sealed by brushing adhesive on the arrangement area 171 to form an adhesive layer. However, no matter which of the above sealing methods is used, it is easy to be broken during fire extinguishing, so that the injection port 14 is exposed.
[0034] like Figures 1 to 6As shown, the large-capacity non-pressure storage fire extinguishing device 100 of the utility model also includes a connecting plate 40, which is stacked and installed above the cover plate 18. The connecting plate 40 is provided with a mounting groove 41, and a through hole 42 passes through the connecting plate 40 and the cover plate 18 and is connected to the upper cavity 11. The trigger starter 30 penetrates into the upper cavity 11 through the through hole 42 and is connected to the gas generating agent 20. The mounting groove 41 is provided to provide a space for positioning the trigger starter 30, so that the trigger starter 30 can be stably installed to avoid displacement. Preferably, the mounting groove 41 includes two intersecting straight grooves, and the ends of the straight grooves pass through the peripheral side of the connecting plate 40. Preferably, the two straight grooves are arranged orthogonally, but are not limited to this arrangement.
[0035] The connecting plate 40 can be made of a single sheet, and a mounting groove 41 is processed on the top thereof. However, according to actual needs, for example, in the embodiment provided by the utility model, the connecting plate 40 can also be assembled from four fan-shaped sheets, and the mounting groove 41 is formed between two fan-shaped sheets. The mounting groove 41 is connected to the external environment, and the trigger starter 30 can directly sense whether there is a fire in the external environment, and then respond quickly. Preferably, the trigger starter 30 is started by thermal initiation. Of course, according to actual needs, it can also be started by an electric initiator.
[0036] When the thermal trigger is used, the trigger starter 30 is designed as a thermal wire. When a fire occurs, the thermal wire is ignited and burns along the wire until the gas generating agent 20 is ignited. When the gas generating agent 20 burns, a large amount of aerosol is generated. The aerosol instantly increases the pressure of the upper cavity 11 and flows rapidly into the lower cavity 12. The high-temperature and high-pressure gas inside the lower cavity 12 is mixed with the fire extinguishing agent and is rapidly ejected from the injection port 14 at a very high speed, achieving the effect of efficient fire extinguishing. The thermal wire can be ignited by the fire source of the fire scene, or it can be ignited by a fuse, which can be electrically started or mechanically started. In the embodiment provided by the utility model, the thermal wire is in the shape of a strip, and according to actual needs, it can also be in the shape of a strip or a sheet. In the embodiment provided by the utility model, the part of the trigger starter 30 (thermal wire) provided in the upper cavity 11 is not shown, but it should be understood that it exists and is necessary.
[0037] When an electric initiator is used for starting, a starter (not shown) is installed in the upper cavity 11, and the starter is connected to an external induction device through an electric wire. The starter is an electric heating device or an electric ignition device. The induction device is a temperature controller, a manual controller or a remote electronic control device. When a fire occurs, the temperature controller senses high temperature, or the on-site personnel discover the fire, or the remote management personnel receive a fire alarm, the induction device control signal or electrical signal is transmitted to the starter through the wire, and the gas generator 20 is ignited or heated, so that the gas generator 20 burns.
[0038] like Figures 1 to 6As shown, the large-capacity non-pressure storage type fire extinguishing device 100 of the utility model further includes a mounting plate 50, which is stacked and mounted on the connecting plate 40, and the four sides of the mounting plate 50 extend beyond the connecting plate 40. The mounting plate 50 is fixed to a structure such as a ceiling, a beam or a ceiling. The screws used for fixing may penetrate the connecting plate 40 and the mounting plate 50, and of course, according to actual needs, only the mounting plate 50 may be penetrated. Preferably, the connecting plate 40 and the mounting plate 50 are selected to be steel plates, iron plates, etc.
[0039] The above disclosure is only a preferred example of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.
Claims
1. A large-capacity non-pressure storage fire extinguishing device suitable for hanging installation, characterized in that: The invention comprises an outer shell, a diffusible fire extinguishing agent, a gas generating agent and a trigger starter. The outer shell is provided with an upper cavity and a lower cavity separated from each other, the upper cavity is connected with the lower cavity through an air outlet, and an injection port connected with the lower cavity is provided at the bottom of the outer shell. The gas generating agent is installed in the upper cavity, the fire extinguishing agent is filled in the lower cavity, and the trigger starter is installed on the outer shell and used to ignite the gas generating agent.
2. The large-capacity non-pressure storage type fire extinguishing device according to claim 1 is characterized in that: A partition is installed in the shell to separate the upper cavity from the lower cavity, and the partition is provided with at least one air outlet.
3. The large-capacity non-pressure storage type fire extinguishing device according to claim 1 is characterized in that: The bottom of the shell is an arc structure.
4. The large-capacity non-pressure storage type fire extinguishing device according to claim 2 is characterized in that: The shell comprises a cylindrical shell, a hemispherical shell connected to the lower end of the cylindrical shell, and a cover plate installed on the top end of the cylindrical shell and covering the top of the cylindrical shell. The partition is arranged at the upper end of the cylindrical shell.
5. The large-capacity non-pressure storage type fire extinguishing device according to claim 4 is characterized in that: The bottom of the hemispherical shell is provided with a layout area, and a plurality of injection ports are opened in the layout area. A shielding member is installed on the hemispherical shell and covers and seals the injection ports.
6. The large-capacity non-pressure storage type fire extinguishing device according to claim 5, characterized in that: The arrangement area is concavely arranged so that an installation groove is formed on the outer side of the arrangement area, and the shielding member is arranged in the installation groove.
7. The large-capacity non-pressure storage type fire extinguishing device according to claim 5 is characterized in that: The shielding member is attached to the arrangement area.
8. The large-capacity non-pressure storage type fire extinguishing device according to claim 4 is characterized in that: It also includes a connecting plate, which is stacked and installed above the cover plate. The connecting plate is provided with a mounting groove. A through hole penetrates the connecting plate and the cover plate and is connected to the upper cavity. The through hole is also connected to the mounting groove. The trigger starter penetrates into the upper cavity through the through hole and is connected to the gas generator.
9. The large-capacity non-pressure storage type fire extinguishing device according to claim 8, characterized in that: The installation groove includes two intersecting straight grooves, and the ends of the straight grooves penetrate to the peripheral side of the connecting plate.
10. The large-capacity non-pressure storage type fire extinguishing device according to claim 8, characterized in that: It also includes a mounting plate, which is stacked and mounted on the connecting plate, and the surrounding of the mounting plate extends beyond the connecting plate.