A cabinet-level perfluoromethylhexanone fire extinguishing device

Abstract

The present invention discloses a cabinet-level perfluoromethylcyclohexanone fire extinguishing device, which comprises a cabinet body. A perfluoromethylcyclohexanone fire extinguishing tank is arranged inside the cabinet body. The lower end of the perfluoromethylcyclohexanone fire extinguishing tank is connected with an exhaust pipe, and a control valve is installed on the exhaust pipe. Guide grooves are formed in the inner walls on both sides of the cabinet body, and guide sliders are slidably connected in the guide grooves. A spray pipe is fixedly connected to the side wall of the guide slider, and a plurality of spray holes are formed in the side wall of the spray pipe. A telescopic pipe is fixedly connected to the upper end of the guide slider, and the interior of the spray pipe is communicated with the interior of the telescopic pipe. The present invention can make the ejected fire extinguishing agent cover the entire cabinet within a short time. Therefore, even when facing a cabinet with a large volume, the fire extinguishing agent can quickly cover the fire area, thereby avoiding the spread of the fire and causing a larger accident and preventing greater losses.

Description

Technical Field

[0001] The present invention relates to the technical field of cabinet fire extinguishing, and particularly to a cabinet-level perfluoromethylhexanone fire extinguishing device. Background Art

[0002] Perfluoromethylhexanone is an important alternative to Halon fire extinguishing agents. It is a compound of fluorinated ketones. It is a clear, colorless, and odorless liquid, supercharged with nitrogen, and stored in a high-pressure gas cylinder as part of a fire extinguishing system. Currently, some server cabinets and power distribution cabinets are equipped with perfluoromethylhexanone fire extinguishers to extinguish fires in case of short-circuit accidents and avoid larger fire accidents.

[0003] For example, a cabinet gas fire extinguishing device disclosed in Chinese Patent Publication No. "CN212973943U" mainly opens the fire extinguishing valve after the controller senses the burning smell and sprays the fire extinguishing agent into the cabinet for fire extinguishing. However, for some large cabinets, due to the large volume of the mechanism and the extremely complex wiring laid in the cabinet, there are more positions where short circuits can occur. In this solution, the position where the fire extinguishing agent is sprayed is fixed. In a small cabinet, it can quickly fill the entire mechanism for fire extinguishing. However, for a large mechanism, it is difficult for the fire extinguishing agent to reach the short-circuit ignition position in a short time, which inevitably causes the spread of the fire and additional losses. In view of this, the present application proposes a cabinet-level perfluoromethylhexanone fire extinguishing device. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose a cabinet-level perfluoromethylhexanone fire extinguishing device.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A cabinet-level perfluoromethylhexanone fire extinguishing device includes a cabinet body. A perfluoromethylhexanone fire extinguishing tank is provided inside the cabinet body. The lower end of the perfluoromethylhexanone fire extinguishing tank is connected to an exhaust pipe. A control valve is installed on the exhaust pipe. Guide grooves are opened on both inner walls of the cabinet body. Guide sliders are slidably connected in the guide grooves. A spray pipe is fixedly connected to the side wall of the guide slider. A plurality of spray holes are opened on the side wall of the spray pipe. A telescopic pipe is fixedly connected to the upper end of the guide slider, and the interior of the spray pipe is communicated with the telescopic pipe. A first spring is fixedly connected to the lower end of the guide slider, and the lower end of the first spring is fixedly connected to the bottom of the guide groove. The exhaust pipe is connected to the telescopic pipe through a connecting mechanism.

[0007] Preferably, a plurality of heat dissipation openings are formed in both side walls of the cabinet body. A storage groove is formed at the bottom of one of the lowermost heat dissipation openings, and through holes are formed at the bottoms of the remaining heat dissipation openings. The connecting mechanism includes a lifting cylinder fixedly connected to the inner wall of the storage groove. A lifting plate is hermetically and slidably connected in the lifting cylinder. The exhaust pipe communicates with the inside of the lifting cylinder. A gas transmission pipe is fixedly connected to the side wall of the lifting cylinder and communicates with the inside of the lifting cylinder. Two air guide pipes are also connected to the gas transmission pipe. The air guide pipes communicate with the telescopic pipe, and pulse valves are installed in the air guide pipes.

[0008] Preferably, a baffle is hermetically and slidably connected in the storage groove. The lower end of the baffle is fixedly connected with a lifting rod. The upper end of the lifting rod is fixedly connected to the bottom of the baffle, and the lower end of the lifting rod is fixedly connected to the upper end of the lifting plate. A U-shaped rod is fixedly connected to the lifting plate.

[0009] Preferably, a warning bell cover is fixedly connected to the inner top of the guiding groove, and a hollow striker is fixedly connected to the upper end of the guiding slider.

[0010] Preferably, an annular sleeve is provided outside the perfluoroketone fire extinguishing tank. A mounting plate is fixedly connected to the side wall of the annular sleeve, and the mounting plate is fixedly connected to the inner wall of the cabinet body through fixing bolts.

[0011] Preferably, a pressure relief pipe is installed at the inner top of the cabinet body, and a one-way check valve is installed in the pressure relief pipe.

[0012] Preferably, the connection part of the exhaust pipe and the lifting cylinder is located at the bottom of the lifting cylinder, and the connection part of the gas transmission pipe and the lifting cylinder is located at a relatively high position on the side wall of the lifting cylinder.

[0013] Preferably, the distance between one of the guiding grooves and the front side of the cabinet body is 10 cm, and the distance between the other guiding groove and the front side of the cabinet body is 20 cm. Each spray hole on the spray pipe faces the inner side of the cabinet body.

[0014] Preferably, a second spring is fixedly connected to the lower end of the lifting plate, and the lower end of the second spring is fixedly connected to the inner bottom of the lifting cylinder.

[0015] Preferably, the vertical part of the U-shaped rod sequentially slides through each through hole.

[0016] The present invention has the following beneficial effects:

[0017] 1. By setting the guide groove and the guide slider, when a fire occurs, the control valve on the exhaust pipe opens, and the fire extinguishing agent in the perfluorhexanone fire extinguishing tank is discharged through the exhaust pipe into the lifting cylinder and then input into the air delivery pipe, and finally conveyed into the two telescopic pipes. By intermittently opening the pulse valves in the two telescopic pipes, the ejected air flow of the fire extinguishing agent can be used to cause the two telescopic pipes to continuously expand and contract. In this way, the guide slider can be driven to reciprocate up and down in the guide groove, and the nozzle on the side wall of the guide slider can be driven to move back and forth up and down on the front side of the cabinet. Then, when the fire extinguishing agent is sprayed from the spray holes on one side of the nozzle into the cabinet interior, the ejected fire extinguishing agent can cover the entire cabinet within a short time. Therefore, even when facing a cabinet with a large volume, the fire extinguishing agent can quickly cover the fire area, thus avoiding the spread of the fire and causing a greater accident and preventing greater losses.

[0018] 2. By setting the lifting cylinder, the lifting plate, the U-shaped rod and the baffle, when the fire extinguishing agent is discharged from the exhaust pipe into the lifting cylinder, the lifting plate can be pushed to move upward. In this way, the two baffles can be driven to rise through the U-shaped rod, so as to block the heat dissipation openings on both sides of the mechanism, and the air inside and outside the cabinet can be isolated, thereby further accelerating the extinguishing speed of the fire in the cabinet.

[0019] 3. By setting the alarm bell cover, the hollow striker, the guide groove and the guide slider, during the telescopic process of the telescopic pipe, the guide slider can be pushed to slide up and down along the guide groove. At this time, the hollow striker on the guide slider can continuously strike the alarm bell cover at the top of the guide groove, so as to be able to emit an alarm sound when a fire occurs, and timely notify the staff to come and handle it. Description of the Drawings

[0020] Figure 1 It is a schematic right-side structure diagram of a cabinet-level perfluorhexanone fire extinguishing device proposed by the present invention;

[0021] Figure 2 It is a schematic left-side structure diagram of a cabinet-level perfluorhexanone fire extinguishing device proposed by the present invention;

[0022] Figure 3 It is a schematic cross-sectional structure diagram of the connection of each component inside the storage groove in the present invention;

[0023] Figure 4 It is a schematic connection structure diagram of two baffles and a U-shaped rod in the invention;

[0024] Figure 5 It is Figure 1 The enlarged schematic diagram of the structure at A in

[0025] Figure 6 It is Figure 2 The enlarged schematic diagram of the structure at B in

[0026] Figure 7 It is Figure 3Schematic enlarged view of the structure at position C in

[0027] Figure 8 is Figure 1 Schematic enlarged view of the structure at position D in

[0028] Figure 9 Schematic structure diagram of the nozzle in the present invention.

[0029] In the figure: 1 cabinet body, 2 gas transmission pipe, 3 U-shaped rod, 4 heat dissipation port, 5 air guide pipe, 6 guide groove, 7 perfluorhexanone fire extinguishing tank, 8 mounting plate, 9 annular sleeve, 10 exhaust pipe, 11 control valve, 12 nozzle, 13 storage groove, 14 baffle plate, 15 spring, 16 guide slider, 17 hollow striker, 18 telescopic pipe, 19 alarm bell cover, 20 pressure relief pipe, 21 lifting cylinder, 22 lifting plate, 23 second spring, 24 lifting rod, 25 through hole, 26 spray hole. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 the embodiments.

[0031] Referring to Figure 1-9 , a cabinet-level perfluorhexanone fire extinguishing device includes a cabinet body 1. A pressure relief pipe 20 is installed at the top inside the cabinet body 1, and a one-way check valve is installed inside the pressure relief pipe 20. It should be noted that by setting the pressure relief pipe 20 and the one-way check valve, the one-way check valve restricts the gas to only flow from the inside of the cabinet body 1 to the outside of the cabinet body 1. When the air pressure inside the cabinet body 1 is too high, the gas inside the cabinet body 1 can be discharged outward through the pressure relief pipe 20, avoiding damage due to excessive air pressure inside the cabinet body 1.

[0032] A perfluorhexanone fire extinguishing tank 7 is provided inside the cabinet body 1. The lower end of the perfluorhexanone fire extinguishing tank 7 is connected to an exhaust pipe 10, and a control valve 11 is installed on the exhaust pipe 10. It should be noted that a controller is also provided inside the cabinet body 1, and its specific structure and installation method are the same as those of a cabinet gas fire extinguishing device disclosed in the patent publication number "CN212973943U" in the background technology of this article. When a fire accident occurs due to a short circuit inside the cabinet body 1, the control valve 11 can be opened, and the high-pressure perfluorhexanone fire extinguishing agent stored in the perfluorhexanone fire extinguishing tank 7 is discharged through the exhaust pipe 10.

[0033] Referring to Figure 1 and Figure 2 , guide grooves 6 are provided on both inner walls of the cabinet body 1. A guide slider 16 is slidably connected inside the guide groove 6, and a nozzle 12 is fixedly connected to the side wall of the guide slider 16, as Figure 9As shown in the figure, a plurality of spray holes 26 are formed in the side wall of the nozzle 12. The upper end of the guiding slider 16 is fixedly connected with a telescopic pipe 18, and the inside of the nozzle 12 is communicated with the inside of the telescopic pipe 18. The lower end of the guiding slider 16 is fixedly connected with a first spring 15, and the lower end of the first spring 15 is fixedly connected to the bottom of the guiding groove 6. The exhaust pipe 10 is connected to the telescopic pipe 18 through a connecting mechanism. The distance between one of the guiding grooves 6 and the front side of the cabinet body 1 is 10 cm, and the distance between the other guiding groove 6 and the front side of the cabinet body 1 is 20 cm, and each spray hole 26 on the nozzle 12 faces the inside of the cabinet body 1. It should be noted that by providing the guiding groove 6 and the guiding slider 16, the guiding slider 16 can slide up and down along the guiding groove 6, and the nozzle 12 provided on the side wall of the guiding slider 16 will also move up and down accordingly. Therefore, after the fire extinguishing agent discharged from the exhaust pipe 10 is conveyed into the telescopic pipe 18 through the connecting mechanism, it can continue to be conveyed from the telescopic pipe 18 to the nozzle 12 and sprayed into the interior of the cabinet body 1 from each spray hole 26 on the side wall of the nozzle 12. Thus, when the nozzle 12 moves up and down with the guiding slider 16, the fire extinguishing agent sprayed from each spray hole 26 on the side wall of the nozzle 12 can completely cover the entire interior of the cabinet body 1. Therefore, when a short-circuit fire occurs at any position inside the cabinet body 1, the fire extinguishing agent sprayed by the continuously moving up and down nozzle 12 can also quickly cover the fire in a short time, thereby quickly extinguishing the fire and avoiding causing a larger fire and additional losses.

[0034] Furthermore, since the distances between the left and right guiding grooves 6 and the front side of the cabinet body 1 are different, the guiding sliders 16 and the nozzles 12 on the left and right sides are arranged staggeredly. Therefore, the guiding sliders 16 and the nozzles 12 on both sides will not collide and interfere with each other during the up and down movement.

[0035] Refer to Figure 6 and Figure 7, a plurality of heat dissipation openings 4 are provided on both side walls of the cabinet body 1. A storage groove 13 is provided at the bottom of one of the lowermost heat dissipation openings 4, and through holes 25 are provided at the bottoms of the remaining heat dissipation openings 4. The connecting mechanism includes a lifting cylinder 21 fixedly connected to the inner wall of the storage groove 13. A lifting plate 22 is hermetically and slidably connected inside the lifting cylinder 21. The exhaust pipe 10 communicates with the inside of the lifting cylinder 21. A gas transmission pipe 2 is fixedly connected to the side wall of the lifting cylinder 21, and the gas transmission pipe 2 communicates with the inside of the lifting cylinder 21. Two guide pipes 5 are also communicated with the gas transmission pipe 2. The guide pipe 5 is communicated with the telescopic pipe 18, and a pulse valve is installed in the guide pipe 5. It should be noted that the pulse valves on the left and right sides are alternately and intermittently opened and closed. On the one hand, the fire extinguishing agent input into each guide pipe 5 can flow intermittently. Whenever the pulse valve in a certain guide pipe 5 is opened, the high-speed flowing fire extinguishing agent flows into the guide pipe 5, is input into the telescopic pipe 18 through the guide pipe 5, and then is input into the spray pipe 12 from the telescopic pipe 18, and finally is sprayed into the cabinet body 1 from the spray holes 26 on the side wall of the spray pipe 12. Since the air pressure of the fire extinguishing agent entering the telescopic pipe 18 is relatively large and it is not completely sprayed out from the spray holes 26 in a short time, the air pressure in the telescopic pipe 18 instantaneously increases, thereby pushing the telescopic pipe 18 to quickly extend. Then, the extended telescopic pipe 18 will push the left guide slider 16 to slide downward. On the other hand, the pulse valves in the two guide pipes 5 are alternately opened. That is, when the pulse valve in one guide pipe 5 is closed, the pulse valve in the other guide pipe 5 is opened. In this way, it can be ensured that there is always a flowing fire extinguishing agent in one guide pipe 5 and is input into the corresponding spray pipe 12 and sprayed into the cabinet body 1 from the spray holes 26, so as to ensure that there is always an output fire extinguishing agent in the cabinet body 1 to continuously carry out fire extinguishing treatment.

[0036] Refer to Figure 3 and Figure 4 , a baffle 14 is hermetically and slidably connected in the storage groove 13, and a lifting rod 24 is fixedly connected to the lower end of the baffle 14. The upper end of the lifting rod 24 is fixedly connected to the bottom of the baffle 14, and the lower end of the lifting rod 24 is fixedly connected to the upper end of the lifting plate 22. A U-shaped rod 3 is fixedly connected to the lifting plate 22. The vertical part of the U-shaped rod 3 sequentially slides through each through hole 25. A warning bell cover 19 is fixedly connected to the inner top of the guide groove 6, and a hollow striker 17 is fixedly connected to the upper end of the guide slider 16. It should be noted that the two baffles 14 are respectively arranged on the left and right sides of the cabinet body 1 and are fixedly connected together through the U-shaped rod 3. When the lifting plate 22 pushes a certain baffle 14 to move upward, the other baffle 14 can be driven to move upward synchronously through the U-shaped rod 3, so as to block the heat dissipation openings 4 on both sides to carry out airtight fire extinguishing treatment on the inside of the cabinet body 1 (a cabinet door is provided outside the cabinet body 1 of the cabinet, which is not shown in the figure. When the mechanism works, the cabinet doors are all in the closed state).

[0037] A perfluoroketone fire extinguishing tank 7 is provided with an annular sleeve 9 on the outside. An installation plate 8 is fixedly connected to the side wall of the annular sleeve 9, and the installation plate 8 is fixedly connected to the inner wall of the cabinet body 1 through fixing bolts. The connection part of the exhaust pipe 10 and the lifting cylinder 21 is located at the bottom of the lifting cylinder 21, and the connection part of the air delivery pipe 2 and the lifting cylinder 21 is located at a relatively high position on the side wall of the lifting cylinder 21. The lower end of the lifting plate 22 is fixedly connected with a second spring 23, and the lower end of the second spring 23 is fixedly connected to the inner bottom of the lifting cylinder 21.

[0038] In the present invention, when a fire breaks out at a certain position inside the cabinet body 1 due to a short circuit, the relevant control device will open the control valve 11, and then the high-pressure fire extinguishing agent stored in the perfluoroketone fire extinguishing tank 7 is discharged through the exhaust pipe 10. Referring to Figure 3 and Figure 7 , the high-pressure fire extinguishing agent discharged from the exhaust pipe 10 will first enter the inside of the lifting cylinder 21 and the lower side of the lifting plate 22. At this time, the air pressure inside the lifting cylinder 21 increases rapidly, and thus the lifting plate 22 is pushed to move upward quickly until the lifting plate 22 moves above the air inlet of the air delivery pipe 2. At this time, the fire extinguishing agent input into the lifting cylinder 21 can enter the air delivery pipe 2. At the same time, the impact force of the fire extinguishing agent discharged upward from the exhaust pipe 2 will balance the pulling force of the second spring 23, so that the position of the lifting plate 22 remains unchanged, and the fire extinguishing agent can continuously be input into the air delivery pipe 2.

[0039] Referring to Figure 1 and Figure 2 , after the fire extinguishing agent is input into the air delivery pipe 2, it can be delivered to the air guide pipes 5 on the left and right sides. The pulse valves in the two air guide pipes 5 are continuously opened and closed intermittently, so that the air flow of the fire extinguishing agent injected into the air guide pipes 5 also flows intermittently, in order to Figure 1For example, when the pulse valve in the left air duct 5 is opened, the high-speed flowing fire extinguishing agent flows into the left air duct 5, and is input into the telescopic tube 18 on the left through the left air duct 5, and then input into the nozzle 12 from the telescopic tube 18, and finally sprayed into the interior of the cabinet 1 from the spray holes 26 on the side wall of the nozzle 12. Since the fire extinguishing agent entering the telescopic tube 18 has a relatively high gas pressure and cannot be completely sprayed out from the spray holes 26 in a short time, and the volume of perfluorohexanone expands due to heat vaporization, the gas pressure in the telescopic tube 18 increases instantaneously, thereby pushing the telescopic tube 18 to stretch rapidly, and the stretched telescopic tube 18 will push the left guide slider 16 to slide downward, and the guide slider 16 will also drive the nozzle 12 to slide downward, so that the fire extinguishing agent sprayed from the spray holes 26 on the side wall of the nozzle 12 can quickly cover the entire interior of the cabinet 1 in a short time, so as to extinguish the fire caused by short circuit at any position. When the pulse valve in the air duct 5 is closed, the air duct 5 stops inputting the fire extinguishing agent, and the first spring 15 can push the guide slider 16 to move back and reset, and compress the telescopic tube 18 above the guide slider 16, so that the remaining fire extinguishing agent remaining in the telescopic tube 18 can be squeezed out and discharged into the cabinet 1 through the spray hole 26 on the side wall of the spray pipe 12. On the one hand, each component can be reset to facilitate the next start-up, and on the other hand, the remaining fire extinguishing agent can be completely discharged, avoiding waste while also speeding up the fire extinguishing efficiency.

[0040] Furthermore, as the pulse valve in the air guide pipe 5 is intermittently opened and closed, the guide slider 16 can be moved back and forth up and down in the guide groove 6 under the combined action of the air pressure of the fire extinguishing agent airflow and the first spring 15. Then, every time the guide slider 16 moves to the top of the guide groove 6, the hollow striking head 17 on the guide slider 16 will continuously strike the alarm cover 19 at the top of the guide groove 6, thereby causing the alarm cover 19 to vibrate and emit an alarm sound. As the guide slider 16 continues to move up and down, the alarm cover 19 is continuously struck and sounds, thereby being able to sound rapidly and promptly notify the staff to deal with the accident, thereby avoiding greater losses.

[0041] Furthermore, when the high-pressure fire extinguishing agent is input into the lifting cylinder 21 and pushes the lifting plate 22 to move upward, the lifting plate 22 will also push the lifting rod 24 to move upward, and the lifting rod 24 can push the baffle 14 fixedly connected to its upper end to move upward, referring to Figure 4 The baffle 14 can drive the baffle 14 on the other side to move upward synchronously through the U-shaped rod 3. When the baffles 14 on both sides move upward, the baffles 14 on both sides can block the heat dissipation ports 4 on both sides to isolate the air inside and outside the cabinet 1, so that the oxygen in the cabinet 1 is consumed, and the fire in the cabinet 1 is quickly extinguished. On the one hand, the fire can be controlled inside the cabinet 1 to prevent the fire from spreading outward and igniting more cabinets. On the other hand, the speed of extinguishing the fire can be accelerated, so that the internal components of the cabinet 1 where the fire occurs can be better preserved, and more serious losses can be avoided.

[0042] As the amount of fire extinguishing agent in the cabinet body 1 increases, the air pressure in the cabinet body 1 continuously increases, and the excess fire extinguishing agent and air will be discharged outwards from the pressure relief pipe 20 above the cabinet body 1, which can prevent the cabinet body 1 from bursting due to excessive internal air pressure.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A cabinet-level perfluorohexanone fire extinguishing device, comprising a cabinet body (1), wherein a perfluorohexanone fire extinguishing tank (7) is arranged inside the cabinet body (1), and is characterized in that, The lower end of the perfluoroketone fire extinguishing tank (7) is connected to an exhaust pipe (10), a control valve (11) is installed on the exhaust pipe (10), guide grooves (6) are formed in the inner walls on both sides of the cabinet body (1), guide sliders (16) are slidably connected in the guide grooves (6), a spray pipe (12) is fixedly connected to the side wall of the guide slider (16), a plurality of spray holes (26) are formed in the side wall of the spray pipe (12), a telescopic pipe (18) is fixedly connected to the upper end of the guide slider (16), and the spray pipe (12) is internally communicated with the telescopic pipe (18). A first spring (15) is fixedly connected to the lower end of the guide slider (16), and the lower end of the first spring (15) is fixedly connected to the bottom of the guide groove (6). The exhaust pipe (10) is connected to the telescopic pipe (18) through a connecting mechanism; A plurality of heat dissipation openings (4) are formed in the side walls of the cabinet body (1). A storage groove (13) is formed at the bottom of one of the lowermost heat dissipation openings (4), and through holes (25) are formed at the bottoms of the remaining heat dissipation openings (4). The connecting mechanism includes a lifting cylinder (21) fixedly connected to the inner wall of the storage groove (13). A lifting plate (22) is hermetically and slidably connected in the lifting cylinder (21). The exhaust pipe (10) is internally communicated with the lifting cylinder (21). An air delivery pipe (2) is fixedly connected to the side wall of the lifting cylinder (21), and the air delivery pipe (2) is internally communicated with the lifting cylinder (21). Two air guide pipes (5) are also communicated with the air delivery pipe (2). The air guide pipes (5) are communicated with the telescopic pipe (18), and pulse valves are installed in the air guide pipes (5).

2. The cabinet-level perfluoromethylhexanone fire extinguishing device according to claim 1, characterized in that, A baffle (14) is hermetically and slidably connected in the storage groove (13). A lifting rod (24) is fixedly connected to the lower end of the baffle (14). The upper end of the lifting rod (24) is fixedly connected to the bottom of the baffle (14), and the lower end of the lifting rod (24) is fixedly connected to the upper end of the lifting plate (22). A U-shaped rod (3) is fixedly connected to the lifting plate (22).

3. The cabinet-level perfluoromethylcyclohexanone fire extinguishing device according to claim 1, characterized in that, An alarm bell cover (19) is fixedly connected to the inner top of the guide groove (6), and a hollow striker (17) is fixedly connected to the upper end of the guide slider (16).

4. A cabinet-level perfluoromethylhexanone fire extinguishing device according to claim 1, characterized in that, An annular sleeve (9) is arranged outside the perfluoroketone fire extinguishing tank (7). A mounting plate (8) is fixedly connected to the side wall of the annular sleeve (9), and the mounting plate (8) is fixedly connected to the inner wall of the cabinet body (1) through a fixing bolt.

5. The cabinet-level perfluoromethylhexanone fire extinguishing device according to claim 1, wherein A pressure relief pipe (20) is installed at the inner top of the cabinet body (1), and a one-way check valve is installed in the pressure relief pipe (20).

6. The cabinet-level perfluoromethylhexanone fire extinguishing device according to claim 1, wherein, The connection between the exhaust pipe (10) and the lifting cylinder (21) is located at the bottom of the lifting cylinder (21), and the connection between the air delivery pipe (2) and the lifting cylinder (21) is located at a relatively high position on the side wall of the lifting cylinder (21).

7. The cabinet-level perfluorocyclohexanone fire extinguishing device according to claim 1, wherein The distance between one of the guide grooves (6) and the front side of the cabinet body (1) is 10 cm, and the distance between the other guide groove (6) and the front side of the cabinet body (1) is 20 cm. Each spray hole (26) on the spray pipe (12) faces the inner side of the cabinet body (1).

8. The cabinet-level perfluorohexanone fire extinguishing device according to claim 1, characterized in that, The lower end of the lifting plate (22) is fixedly connected with a second spring (23), and the lower end of the second spring (23) is fixedly connected to the inner bottom of the lifting cylinder (21).

9. The cabinet-level perfluoromethylhexanone fire extinguishing device according to claim 2, characterized in that, The vertical part of the U-shaped rod (3) sequentially slides through each through hole (25).

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