Self-replenishment multi-terminal pump drive type liquefied gas fire extinguishing device

Abstract

The invention discloses a self-replenishment multi-terminal pump drive type liquefied gas fire extinguishing device, and relates to the technical field of fire fighting equipment, the self-replenishment multi-terminal pump drive type liquefied gas fire extinguishing device comprises a plurality of groups of independently operating fire extinguishing assemblies, each fire extinguishing assembly comprises a barrel, two ends of each barrel are gradually shrunk, and two groups of medium storage pipelines are arranged in each barrel; the two medium storage pipelines are respectively a first medium storage pipeline and a second medium storage pipeline, the end part of the first medium storage pipeline is connected with a first guide pipe extending to the top of the barrel, the first guide pipe is connected to a flow divider assembly arranged in the middle area of the top of the barrel, and the end part of the second medium storage pipeline is connected with a second guide pipe extending to the top of the barrel; different types of media are conveyed to the corresponding matched medium storage pipelines through the flow divider assembly so as to adapt to different fire extinguishing scenes, independent storage, accurate distribution and continuous supply of the multiple types of media are achieved, and an efficient and reliable fire extinguishing solution is provided for the complex industrial scene where electrical fire and metal fire coexist.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting equipment, and particularly to a pump-driven liquefied gas fire-extinguishing device with self-supplying and multiple terminals. Background Art

[0002] With the development of industrial manufacturing technology, in workshops / factories in fields such as metal processing, metallurgical casting, aerospace component production, and new energy battery manufacturing, the overlap between intensive electrical equipment and processing / storage scenarios of active metals (such as magnesium, aluminum, titanium, etc.) is increasing day by day. In such scenarios, the risks of electrical fires and metal fires coexist, posing higher requirements for the comprehensive response capabilities of fire-extinguishing devices. Most existing liquefied gas fire-extinguishing devices adopt a structural design of a single liquid storage tank + single-terminal spraying, and have the following defects: Limited coverage: Single-terminal spraying can only extinguish fires in a local area and cannot protect multiple scattered high-risk points (such as multiple server cabinets in a data center) simultaneously; Weak continuous combat ability: The capacity of the liquid storage tank is fixed, and the liquefied gas cannot be replenished in time after consumption during the fire-extinguishing process, and it is prone to failure in the face of long-term or reignition scenarios; Low driving efficiency: Traditional devices mostly rely on gas pressure or gravity for driving, and there are problems such as rapid pressure decay and unstable flow rate, especially prone to spraying interruption in low-temperature environments.

[0003] Therefore, it is very necessary to design a pump-driven liquefied gas fire-extinguishing device with self-supplying and multiple terminals. Summary of the Invention

[0004] The purpose of the present invention is to provide a pump-driven liquefied gas fire-extinguishing device with self-supplying and multiple terminals to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A pump-driven liquefied gas fire-extinguishing device with self-supplying and multiple terminals, including multiple independently operating fire-extinguishing components. Each fire-extinguishing component includes a cylinder body with gradually shrinking ends. Inside the cylinder body, there are two groups of medium storage pipelines, namely the first medium storage pipeline and the second medium storage pipeline. The end of the first medium storage pipeline is connected to a first conduit extending to the top of the cylinder body, and the first conduit is connected to a diverter assembly arranged in the middle area at the top of the cylinder body. The end of the second medium storage pipeline is connected to a second conduit extending to the top of the cylinder body, and the second conduit is also connected to the diverter assembly arranged in the middle area at the top of the cylinder body. Different types of media are transported to the corresponding matching medium storage pipelines through the diverter assembly to adapt to different fire-extinguishing scenarios.

[0006] According to the above technical solution, a first intelligent valve is installed at the connection between the first conduit and the cylinder body, and a second intelligent valve is installed at the connection between the second conduit and the cylinder body.

[0007] According to the above technical solution, the diverter assembly includes a base fixedly installed in the middle area at the top of the cylinder body. A bin is fixedly installed on the top of the base. First drain pipes, second drain pipes, third drain pipes, and fourth drain pipes are respectively installed at the four corners of the top of the bin. The first drain pipe and the second drain pipe are jointly connected to a third conduit. The third conduit is connected to a first booster pipe assembly. The first booster pipe assembly is connected to a first storage tank.

[0008] According to the above technical solution, the third drain pipe and the fourth drain pipe are jointly connected to a fourth conduit. The fourth conduit is connected to a second booster pipe assembly. The second booster pipe assembly is connected to a second storage tank.

[0009] According to the above technical solution, a first pre-chamber, a second pre-chamber, a third pre-chamber, and a fourth pre-chamber are arranged in the bin. A post-chamber is arranged in the middle area of the bin. The post-chamber is connected to a discharge bin arranged in the bin. The first conduit and the second conduit are both connected to the first pre-chamber, the second pre-chamber, the third pre-chamber, and the fourth pre-chamber. The first conduit and the second conduit are connected to the discharge bin. The first drain pipe is connected to the first pre-chamber. The second drain pipe is connected to the second pre-chamber. The third drain pipe is connected to the third pre-chamber. The fourth drain pipe is connected to the fourth pre-chamber. The post-chamber is respectively connected to the first pre-chamber, the second pre-chamber, the third pre-chamber, and the fourth pre-chamber through short pipes.

[0010] According to the above technical solution, spraying pipes are arranged at both ends of the cylinder body. The ends of the spraying pipes are connected to an external fire extinguishing device, and the fire extinguishing process is executed through the external fire extinguishing device.

[0011] According to the above technical solution, auxiliary components are arranged below the spraying pipes at both ends of the cylinder body. The auxiliary components are connected to the spraying pipes through a fifth conduit. A cooling component is arranged in the auxiliary components. The cooling medium filled in the fifth conduit is cooled through the cooling component, and then the connection part between the spraying pipe and the external fire extinguishing device is cooled.

[0012] According to the above technical solution, a mixing chamber is arranged in the cylinder body. The mixing chamber is connected to the spraying pipe.

[0013] According to the above technical solution, a partition is arranged between the first medium storage pipeline and the second medium storage pipeline to block them, so that the two media have no contact.

[0014] According to the above technical solution, both the first medium storage pipeline and the second medium storage pipeline are connected to the mixing chamber through arranged guide holes.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by providing two sets of medium storage pipelines and two storage bins, through the collaborative design of a dual-storage bin - multi-stage shunt bin, the independent storage, precise distribution, and continuous supply of multiple types of media are realized, providing an efficient and reliable fire extinguishing solution for complex industrial scenarios where electrical fires and metal fires coexist. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic structural diagram of the overall fire extinguishing assembly of the present invention; Figure 2 is a schematic diagram of the overall cylinder body of the present invention; Figure 3 is a schematic diagram of the interior of the cylinder body of the present invention; Figure 4 is a schematic diagram of the diverter assembly of the present invention; In the figures: 1, fire extinguishing assembly; 2, cylinder body; 3, first medium storage pipeline; 4, second medium storage pipeline; 5, first conduit; 6, diverter assembly; 7, second conduit; 8, first intelligent valve; 9, second intelligent valve; 10, base; 11, bin body; 12, first drain pipe; 13, second drain pipe; 14, third drain pipe; 15, fourth drain pipe; 16, third conduit; 17, fourth conduit; 18, first booster pipe assembly; 19, second booster pipe assembly; 20, first storage tank; 21, first pre-chamber; 22, second pre-chamber; 23, third pre-chamber; 24, fourth pre-chamber; 25, rear chamber; 26, discharge chamber; 27, spraying pipe; 28, fifth conduit; 29, mixing chamber; 30, auxiliary assembly; 31, second storage tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0018] Please refer to Figures 1-4, the present invention provides a technical solution: a pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals, including multiple independently operating fire extinguishing components 1. Each fire extinguishing component 1 includes a cylinder body 2, the two ends of the cylinder body 2 gradually shrink, and two medium storage pipelines are arranged inside the cylinder body 2, namely the first medium storage pipeline 3 and the second medium storage pipeline 4. The end of the first medium storage pipeline 3 is connected to a first conduit 5 extending to the top of the cylinder body 2, and the first conduit 5 is connected to a diverter assembly 6 arranged in the middle area at the top of the cylinder body 2. The end of the second medium storage pipeline 4 is connected to a second conduit 7 extending to the top of the cylinder body 2, and the second conduit 7 is also connected to the diverter assembly 6 arranged in the middle area at the top of the cylinder body 2. Different types of media are transported to the corresponding matching medium storage pipelines through the diverter assembly 6 to adapt to different fire extinguishing scenarios; This device realizes multi-region collaborative fire extinguishing through multiple independently operating fire extinguishing components 1. The cylinder body 2 of each fire extinguishing component 1 adopts a streamlined design with both ends shrinking (similar to a spindle shape), which can reduce the resistance of medium flow and enhance the structural strength. The first medium storage pipeline 3 (storing Class A medium, such as heptafluoropropane) and the second medium storage pipeline 4 (storing Class B medium, such as carbon dioxide) are separated inside the cylinder body 2. The two types of pipelines respectively extend upward through the first conduit 5 and the second conduit 7 to the diverter assembly 6 at the top of the cylinder body 2. When different types of fire situations are detected (such as electrical fires requiring Class A medium and metal fires requiring Class B medium), the diverter assembly 6 accurately transports the corresponding medium to the matching storage pipeline according to the control instruction, realizing the directional adaptation of the fire extinguishing medium.

[0019] Multiple independent components 1 can be independently started for different regions respectively, avoiding the global failure caused by the failure of a single component; The design of the dual-medium storage pipeline supports multiple scenarios with one device, eliminating the need to replace equipment for different fire situations and significantly improving flexibility; The structure with both ends of the cylinder body 2 shrinking reduces the turbulent loss during the flow of the medium and lowers the pump drive energy consumption.

[0020] A first intelligent valve 8 is installed at the connection between the first conduit 5 and the cylinder body 2, and a second intelligent valve 9 is installed at the connection between the second conduit 7 and the cylinder body 2; The first intelligent valve 8 and the second intelligent valve 9 are respectively installed at the connections between the first conduit 5, the second conduit 7 and the cylinder body 2, and are automatically opened and closed after receiving the signals from the fire detectors by the control unit (not shown). For example, when an electrical fire is detected, the control unit sends an instruction to open the first intelligent valve 8 and close the second intelligent valve 9, only allowing the Class A medium to enter the diverter assembly 6 through the first conduit 5; if a metal fire is detected, it is switched to open the second intelligent valve 9 and close the first intelligent valve 8; For the detection method of fire types, in this study, fire sensors were installed on the top of relevant equipment in the factory area or in its adjacent areas. Through these fire sensors with matching positions, the fire conditions in specific areas of the factory area can be monitored, and the type of fire can be determined accordingly.

[0021] The precise on-off control of the intelligent valve avoids cross-contamination of different media and ensures the purity of the media. The valve is linked with the fire type, reducing unnecessary medium consumption and extending the endurance time of the device. The valve integrated sealing structure (such as an elastic gasket) can prevent medium leakage and improve safety.

[0022] The diverter assembly 6 includes a base 10 fixedly installed in the middle area at the top of the cylinder body 2. The top of the base 10 is fixedly installed with a bin body 11. The first drain pipe 12, the second drain pipe 13, the third drain pipe 14 and the fourth drain pipe 15 are respectively installed at the four corners of the top of the bin body 11. The first drain pipe 12 and the second drain pipe 13 are jointly connected to the third conduit 16. The third conduit 16 is connected to the first booster pipe assembly 18. The first booster pipe assembly 18 is connected to the first storage tank 20. The base 10 of the diverter assembly 6 is fixed to the top of the cylinder body 2, and the inside of the bin body 11 is the core area for medium distribution. The first drain pipe 12 and the second drain pipe 13 at the top are connected in parallel and then connected to the first booster pipe assembly 18 (including a micro booster pump) through the third conduit 16, and finally lead to the first storage tank 20 (storing high-pressure Class A medium). When the Class A medium enters the bin body 11 through the double-path diversion of the first booster pipe assembly 18 through the first drain pipe 12 and the second drain pipe 13, it enters the cylinder body 2 through the first conduit 5, and finally ensures that the medium can be efficiently transported to the remote fire extinguishing terminal. The double-path diversion of the first drain pipe 12 and the second drain pipe 13 reduces the single-pipe pressure load. The first booster pipe assembly 18 further increases the pressure (such as increasing from 1.6 MPa to 2.5 MPa). The parallel design of the double drain pipes increases the medium flow rate (single-pipe flow rate 2 L / s → double-pipe 4 L / s), improving the fire extinguishing response speed. The booster pipe assembly compensates for the pressure loss during long-distance transportation and ensures the spraying intensity at the remote terminal. The first storage tank 20 serves as a buffer tank, which can temporarily store the pressurized medium to meet the instantaneous high-flow demand in case of a sudden large fire.

[0023] The third drain pipe 14 and the fourth drain pipe 15 are jointly connected to the fourth conduit 17. The fourth conduit 17 is connected to the second booster pipe assembly 19. The second booster pipe assembly 19 is connected to the second storage tank 31. The third drain pipe 14 and the fourth drain pipe 15 are connected in parallel and then connected to the second pressurizing pipe assembly 19 (independent of the first pressurizing pipe assembly 18) through the fourth conduit 17, and finally lead to the second storage tank 31 (storing high-pressure Class B medium). After the Class B medium enters the chamber 11 through the double-path shunt of the third and fourth drain pipes via the second pressurizing pipe assembly 19, it enters the cylinder 2 through the second conduit 7, finally ensuring that the medium can be efficiently transported to the distal fire extinguishing terminal; The second pressurizing pipe assembly 19 pressurizes to ensure the transportation stability of the medium (such as pressurizing from 1.2 MPa to 2.0 MPa). Since the density of the Class B medium (such as carbon dioxide) is different from that of Class A, the pressurizing parameters (such as rotation speed) of the second pressurizing pipe assembly 19 can be independently adjusted to avoid pressurizing conflicts between the two types of media.

[0024] The independent pressurization design adapts to the physical properties (such as density, saturated vapor pressure) of different media to ensure the pressurization efficiency; The double storage tanks (the first storage tank 20, the second storage tank 31) realize the separate storage of media to avoid mixing failure; The path of the fourth conduit 17 is separated from that of the third conduit 16 to reduce the mutual interference during the transportation of the medium.

[0025] In the chamber 11, a first pre-chamber 21, a second pre-chamber 22, a third pre-chamber 23 and a fourth pre-chamber 24 are provided. A rear chamber 25 is provided in the middle area of the chamber 11. The rear chamber 25 is connected to the discharge chamber 26 provided in the chamber 11. The first conduit 5 and the second conduit 7 are both connected to the first pre-chamber 21, the second pre-chamber 22, the third pre-chamber 23, and the fourth pre-chamber 24. The first conduit 5 and the second conduit 7 are connected to the discharge chamber 26. The first drain pipe 12 is connected to the first pre-chamber 21. The second drain pipe 13 is connected to the second pre-chamber 22. The third drain pipe 14 is connected to the fourth drain pipe 15. The fourth drain pipe 15 is connected to the fourth pre-chamber 24. The rear chamber 25 is respectively connected to the first pre-chamber 21, the second pre-chamber 22, the third pre-chamber 23, and the fourth pre-chamber 24 through short pipes; The chamber 11 serves as the core unit for medium distribution and is connected to the first storage chamber 20 and the second storage chamber 21 through conduits (5 / 7) to form a complete medium flow link of storage chamber → conduit → chamber 11 → pre-chamber → drain pipe → fire extinguishing terminal. The specific operation process is as follows: Medium storage and output stage (storage chamber → conduit): The first storage chamber 20 and the second storage chamber 21 store Class A fire extinguishing medium (such as heptafluoropropane, suitable for electrical fires) and Class B fire extinguishing medium (such as sodium chloride-based dry powder, suitable for metal fires) respectively. When the control unit detects a fire, it sends instructions according to the fire type (electrical / metal / composite): In the case of an electrical fire, the outlet valve (not shown) of the first storage bin 20 is opened, and the Class A medium is transported through the first pressurizing pipe assembly 18 to the third conduit 16 at a preset pressure, and then transported through the third conduit 16 to the first drainage pipe 12 or the second drainage pipe 13, and finally transported to the discharge bin 26 of the bin body 11; In the case of a metal fire, the outlet valve of the second storage bin 21 is opened, and the Class B medium is transported through the second pressurizing pipe assembly 19 to the fourth conduit 17 at a preset pressure, and then transported through the fourth conduit 17 to the third drainage pipe 14 or the fourth drainage pipe 15, and finally transported to the discharge bin 26 of the bin body 11; In the case of a composite fire, the double storage bin valves are opened synchronously, and the Class A / B media are respectively input into the discharge bin 26 in parallel through the first pressurizing pipe assembly 18 / second pressurizing pipe assembly 19.

[0026] Initial distribution and pressure balance stage of the bin body (discharge bin → rear bin): After the medium enters the discharge bin 26, it flows into the rear bin 25 (located in the central area of the bin body 11) through the communication port. A stirring structure is arranged inside the rear bin 25. The stirring structure is a prior art structure and will not be elaborated here. The core function of the rear bin 25 is pressure buffering and pre-mixing of the medium: When a single medium is input (such as only the Class A medium), the rear bin 25 reduces the flow rate (from 5 m / s in the first pressurizing pipe assembly 18 to 2 m / s) by expanding the volume (the volume is 2 times the cross-sectional area of the first pressurizing pipe assembly 18), and stabilizes the pressure fluctuation (such as the input pressure of the first pressurizing pipe assembly 18 is 2.5 MPa ± 0.3 MPa, and the pressure is stabilized at 2.4 MPa ± 0.1 MPa after passing through the rear bin 25). A controllable valve is arranged at the connection between the first pressurizing pipe assembly 18 and the third conduit 16. The flow rate of the valve here is a preset fixed value. At the same time, a controllable valve is also arranged at the connection between the rear bin 25 and the discharge bin 26. The flow rate of the valve here is a preset adjustable value. The flow rate value between the rear bin 25 and the discharge bin 26 can be changed through the regulation of the fire protection system; When two media are input (Class A + B), the stirring structure (not shown) inside the rear bin 25 guides the preliminary mixing of the two media (the mixing ratio is controlled by the opening degree of the outlet valve of the storage bin, such as A:B = 7:3), avoiding medium stratification or sudden pressure drop caused by direct collision.

[0027] Precise diversion to the front bin stage (rear bin → front bin): The medium in the rear bin 25 is distributed to different front bins according to the type or fire extinguishing requirements: Class A Medium Diverting: Class A medium (with low density and strong fluidity) enters the first pre-chamber 21 and the second pre-chamber 22 respectively through the upper diversion channels in the bin body 11 (because the first drain pipe 12 is connected to the first pre-chamber 21 and the second drain pipe 13 is connected to the second pre-chamber 22), realizing dual-path diversion; Class B Medium Diverting: Class B medium (with high density and easy to settle) enters the third drain pipe 14 and the fourth drain pipe 15 respectively through the lower diversion channels, and finally flows into the third pre-chamber 23 and the fourth pre-chamber 24, avoiding medium blockage caused by gravity; Composite Medium Diverting: It is divided into three steps. First step, a part of Class A medium is transported to the first conduit 5 and the second conduit 7 through the discharge bin 26. Second step, then Class B medium is transported to the first conduit 5 and the second conduit 7 through the discharge bin 26. Third step, finally, the mixed medium uniformly mixed in the rear bin 25 is transported to the first pre-chamber 21, the second pre-chamber 22, the third pre-chamber 23 and the fourth pre-chamber 24. The mixed medium is transported to the first conduit 5 and the second conduit 7 through the first pre-chamber 21, the second pre-chamber 22, the third pre-chamber 23 and the fourth pre-chamber 24. By circulating the above three steps to transport the medium, independent transport paths for the three states of the two types of media are retained, preventing the fire extinguishing effect from being affected due to uneven mixing (such as Class A gas being wrapped by Class B dry powder and becoming ineffective).

[0028] Multi-Medium Independent Storage and Flexible Switching: The dual-bin design of the first storage bin 20 and the second storage bin 21 supports the independent storage of Class A / B media (such as storing heptafluoropropane and sodium chloride-based dry powder in separate bins), avoiding the risk of failure caused by medium mixing in traditional single-bin devices (such as gas medium being adsorbed by dry powder and reducing the concentration). By controlling the opening and closing of the outlet valves of the storage bins, the medium switching of "electrical fire → metal fire" can be completed within 0.5 seconds, adapting to multiple types of fire scenarios.

[0029] Pressure Stability and Flow Precision Control: The buffer design of the rear bin 25 effectively solves the problem of output pressure difference between different storage bins (such as 2.5 MPa for Class A medium and 2.0 MPa for Class B medium). After passing through the rear bin 25, the pressure fluctuation range is reduced from ±0.3 MPa to ±0.1 MPa, ensuring the stability of medium transportation. At the same time, Class A medium is output in parallel through the double pre-chambers (21 / 22) + double drain pipes (12 / 13), and the flow rate can be increased to 2 times that of a single pipe (3 L / s), meeting the high-flow demand for rapid cooling in electrical fires; Class B medium is output through the double pre-chambers (23 / 24) + double drain pipes (14 / 15), and the flow rate is stable (1.0 L / s), avoiding metal splashing caused by excessive spraying in metal fires (when the flow rate of Class B medium exceeds 1.5 L / s, the metal combustion area expands by 15%).

[0030] Continuous Liquid Supply and Self-Replenishment Ability: The direct connection design between the storage bin and the bin body 11 supports replenishment while spraying: When the remaining amount of the medium in the storage bin is lower than the threshold (for example, the remaining amount of Class A medium < 20%), the external liquid supply system (not shown) automatically replenishes new medium through the liquid replenishment port of the storage bin (the replenishment rate is 2 L / min) to ensure that the fire extinguishing process is not interrupted. Compared with the traditional single liquid storage tank device (which requires shutdown for liquid replenishment and the interruption time > 5 minutes), this structure can achieve fire extinguishing operations for more than 30 minutes continuously, effectively dealing with long-duration fires such as metal dust explosions.

[0031] Maintenance convenience and fault isolation: The modular connection between the front bin and the drain pipe (for example, the first drain pipe 12 is only connected to the first front bin 21) enables, when a certain medium path (such as the first drain pipe 12 for Class A medium) is blocked, only the first storage bin 20 needs to be closed and the corresponding front bin 21 needs to be disassembled for cleaning, without stopping the operation of the second storage bin 21 or disassembling the entire bin body 11. The maintenance time is shortened from the traditional 2 hours to 0.5 hours, significantly reducing the production stoppage losses caused by the failure of the fire extinguishing device in the industrial scenario.

[0032] In summary, through the collaborative design of the dual storage bin - multi-stage diversion bin, this structure realizes the independent storage, precise distribution, and continuous supply of multiple types of media, providing an efficient and reliable fire extinguishing solution for complex industrial scenarios where electrical fires and metal fires coexist.

[0033] Spraying pipes 27 are arranged at both ends of the cylinder body 2, and the ends of the spraying pipes 27 are connected to external fire extinguishing devices to execute the fire extinguishing process through the external fire extinguishing devices; The spraying pipes 27 at both ends of the cylinder body 2 are the final spraying channels for the medium, and their ends are connected to external fire extinguishing devices (such as nozzles, spray guns, or network nozzles). When the pressurized medium is output from the first storage tank 20 or the second storage tank 31, it is transported through the spraying pipes 27 to the external devices to execute spraying fire extinguishing. For example, if the external device is a multi-directional nozzle, the spraying pipes 27 can disperse the medium into multiple jets to cover multiple fire source points; if it is a spray gun, long-distance spraying (such as an oil pool fire 10 meters away) can be achieved through the high-pressure transportation of the spraying pipes 27. The design of the spraying pipes 27 at both ends realizes "two-way coverage", and a single fire extinguishing component can simultaneously protect the areas in the front and back directions of the cylinder body (such as the east and west sides of the factory building); The modular design of the external fire extinguishing device (the nozzle / spray gun can be replaced) adapts to different scenario requirements (such as nozzles for enclosed spaces and spray guns for open spaces); The spraying pipes 27 are made of stainless steel bellows (resistant to high pressure and vibration), which can adapt to complex installation environments (such as beside vibrating mechanical equipment).

[0034] An auxiliary component 30 is arranged below the material spraying pipes 27 at both ends of the cylinder body 2. The auxiliary component 30 is connected to the material spraying pipes 27 through a fifth conduit 28. A cooling component is arranged inside the auxiliary component 30 to cool the cooling medium filled in the fifth conduit 28, and then cool the connection part between the material spraying pipes 27 and the external fire extinguishing device, so that the external fire extinguishing device is not affected by the external fire and continues to work.

[0035] A mixing chamber 29 is arranged inside the cylinder body 2. The mixing chamber 29 is connected to the material spraying pipes 27. All media enter the material spraying pipes 27 through the mixing chamber 29 and are then used by the external fire extinguishing device.

[0036] A partition is arranged between the first medium storage pipeline 3 and the second medium storage pipeline 4 to separate them, so that the two media do not come into contact.

[0037] Both the first medium storage pipeline 3 and the second medium storage pipeline 4 are connected to the mixing chamber 29 through arranged guide holes, so that the media can enter the material spraying pipes 27 through the mixing chamber 29.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals, comprising multiple groups of independently operating fire extinguishing components (1), characterized in that, The fire extinguishing assembly (1) includes a cylinder body (2) with both ends gradually shrinking. Inside the cylinder body (2), two groups of medium storage pipes are provided, namely a first medium storage pipe (3) and a second medium storage pipe (4). The end of the first medium storage pipe (3) is connected to a first conduit (5) extending to the top of the cylinder body (2), and the first conduit (5) is connected to a diverter assembly (6) arranged in the middle area at the top of the cylinder body (2). The end of the second medium storage pipe (4) is connected to a second conduit (7) extending to the top of the cylinder body (2), and the second conduit (7) is also connected to the diverter assembly (6) arranged in the middle area at the top of the cylinder body (2). Through the diverter assembly (6), different types of media are transported to the corresponding matching medium storage pipes to adapt to different fire extinguishing scenarios.

2. The pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals according to claim 1, wherein A first intelligent valve (8) is installed at the connection between the first conduit (5) and the cylinder body (2), and a second intelligent valve (9) is installed at the connection between the second conduit (7) and the cylinder body (2).

3. The pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals according to claim 2, characterized in that, The diverter assembly (6) includes a base (10) fixedly installed in the middle area at the top of the cylinder body (2). A housing (11) is fixedly installed on the top of the base (10). At the four corners of the top of the housing (11), a first drain pipe (12), a second drain pipe (13), a third drain pipe (14), and a fourth drain pipe (15) are respectively installed. The first drain pipe (12) and the second drain pipe (13) are jointly connected to a third conduit (16), the third conduit (16) is connected to a first booster pipe assembly (18), and the first booster pipe assembly (18) is connected to a first storage tank (20).

4. A pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals according to claim 3, characterized in that, The third drain pipe (14) and the fourth drain pipe (15) are jointly connected to a fourth conduit (17), the fourth conduit (17) is connected to a second booster pipe assembly (19), and the second booster pipe assembly (19) is connected to a second storage tank (31).

5. The pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals according to claim 4, characterized in that, Inside the housing (11), a first pre-chamber (21), a second pre-chamber (22), a third pre-chamber (23), and a fourth pre-chamber (24) are provided. In the middle area inside the housing (11), a rear chamber (25) is provided. The rear chamber (25) is connected to a discharge chamber (26) arranged inside the housing (11). The first conduit (5) and the second conduit (7) are both connected to the first pre-chamber (21), the second pre-chamber (22), the third pre-chamber (23), and the fourth pre-chamber (24). The first conduit (5) and the second conduit (7) are connected to the discharge chamber (26). The first drain pipe (12) is connected to the first pre-chamber (21), the second drain pipe (13) is connected to the second pre-chamber (22), the third drain pipe (14) is connected to the fourth drain pipe (15), and the fourth drain pipe (15) is connected to the fourth pre-chamber (24). The rear chamber (25) is respectively connected to the first pre-chamber (21), the second pre-chamber (22), the third pre-chamber (23), and the fourth pre-chamber (24) through short pipes.

6. The pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals according to claim 5, characterized in that, The two ends of the cylinder body (2) are provided with spraying pipes (27), and the ends of the spraying pipes (27) are connected to an external fire extinguishing device, and the fire extinguishing process is carried out through the external fire extinguishing device.

7. The pump-driven liquefied gas fire extinguishing device with self-supplying multi-terminals according to claim 6, characterized in that, An auxiliary component (30) is arranged below the spraying pipes (27) at both ends of the cylinder body (2). The auxiliary component (30) is connected to the spraying pipe (27) through a fifth conduit (28). A cooling component is arranged in the auxiliary component (30) to cool the cooling medium filled in the fifth conduit (28), and then cool the connection part between the spraying pipe (27) and the external fire extinguishing device.

8. The pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals according to claim 7, characterized in that, A mixing chamber (29) is arranged in the cylinder body (2), and the mixing chamber (29) is connected to the spraying pipe (27).

9. The pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals according to claim 8, characterized in that, A partition is arranged between the first medium storage pipeline (3) and the second medium storage pipeline (4) to prevent the two media from contacting each other.

10. The pump-driven liquefied gas fire extinguishing device with self-supplying multiple terminals according to claim 9, characterized in that, Both the first medium storage pipeline (3) and the second medium storage pipeline (4) are connected to the mixing chamber (29) through guide holes provided.

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