Perfluorohexanone fire extinguishing device with liquid level feedback function and working method of perfluorohexanone fire extinguishing device
By introducing liquid level feedback components and mechanical transmission structures into the perfluorohexanone fire extinguishing device, the problem that non-pressure storage devices cannot detect liquid levels is solved, and time monitoring and alarm are realized, ensuring sufficient fire extinguishing agent and improving fire safety sex.
Patent Information
- Application Number
- CN202411693534.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-01-17
AI Technical Summary
The existing non-pressure storage small perfluorohexanone fire extinguishing device lacks a liquid level detection structure and cannot determine whether there is a leakage, which may lead to the inability to extinguish the fire due to insufficient or leakage of fire extinguishing agent during a fire, forming a fire hazard.
A perfluorohexanone fire extinguishing device with liquid level feedback function is designed. The liquid level feedback component is used to monitor the liquid level status of the fire extinguishing agent through floats and sensors, output alarm signals, and drive the indicator panel to display the liquid level through a mechanical transmission structure. Status, ensure that people promptly deal with the situation when the liquid level is abnormal.
It realizes the monitoring of the liquid level of the fire extinguishing agent at all times, avoids the problem of insufficient fire extinguishing agent caused by leakage, ensures that the fire can be effectively extinguished during fire, improves fire safety, and meets the long-term use requirements through stainless steel materials and simple and reliable structure.
Smart Images
Figure CN119318788A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of fire extinguishing devices, in particular to a perfluorohexanone fire extinguishing device with a liquid level feedback function and a working method thereof. Background Art
[0002] Perfluorohexanone fire extinguishing agent is an important substitute for halon fire extinguishing agent. It is a fluorinated ketone compound. It is a clear, colorless, odorless liquid at room temperature. Since its evaporation heat is only 1 / 25 of that of water, and its vapor pressure is 25 times that of water, these properties make it easy to vaporize and exist in gaseous state. It mainly relies on heat absorption to achieve the effect of fire extinguishing. It is a veritable green and environmentally friendly fire extinguishing agent. At the same time, its excellent electrical insulation and high cleanliness make it incomparable superior to other fire extinguishing media.
[0003] Based on this, in recent years, perfluorohexanone fire extinguishing devices have shown a trend of replacing heptafluoropropane fire extinguishing devices, and various products have emerged one after another. These products are generally divided into two categories: pressure storage type and non-pressure storage type. Pressure storage products can directly apply the structure of heptafluoropropane fire extinguishing devices. Most of them are bottle-type fire extinguishing devices, which are basically used for fire prevention and extinguishing in large spaces. Non-pressure storage fire extinguishing devices are much more flexible in scene application. Products that meet the requirements can be designed according to the size of the installation space. Therefore, the scope of application is wider.
[0004] Current non-pressurized small-scale perfluorohexanone fire extinguishing devices generally adopt a gas generating agent driven structure. Since perfluorohexanone fire extinguishing agent is a liquid at room temperature and its boiling point is 49°C, perfluorohexanone fire extinguishing agent is very easy to gasify. When perfluorohexanone fire extinguishing agent is filled in the bottle of the fire extinguishing device, part of the fire extinguishing agent will exist in the form of gas under the influence of temperature changes, forming a certain air pressure, which will cause leakage for the bottle with defective sealing performance.
[0005] However, the existing non-pressure storage type small perfluorohexanone fire extinguishing devices do not have a liquid level detection structure designed on the device, so it is impossible to determine whether the fire extinguishing device is leaking. Once a leaking product occurs, if a fire occurs, and there is no fire extinguishing agent or insufficient fire extinguishing agent inside the fire extinguishing device due to leakage, there is no way to extinguish the fire, forming a huge fire hazard. Therefore, the present invention proposes a perfluorohexanone fire extinguishing device with a liquid level feedback function and a working method thereof to solve the above problem. Summary of the invention
[0006] The object of the present invention is to provide a perfluorohexanone fire extinguishing device with a liquid level feedback function and a working method thereof, so as to solve the problem that the existing non-pressure storage type small perfluorohexanone fire extinguishing devices proposed in the above background technology do not have a liquid level detection structure designed on the device, so it is impossible to judge whether the fire extinguishing device is leaking. Once a leaking product occurs, if a fire occurs, and there is no fire extinguishing agent or insufficient fire extinguishing agent inside the fire extinguishing device due to leakage, there is no way to extinguish the fire, forming a huge fire hazard.
[0007] To achieve the above object, the present invention provides the following technical solution: a perfluorohexanone fire extinguishing device with a liquid level feedback function, comprising a tank body, a front end cover is provided at one end of the tank body, a rear end cover is provided at the other end of the tank body, a first connecting stud is provided in the middle of the front end cover, a second connecting stud and a nozzle stud are provided on both sides of the rear end cover, and a perfluorohexanone fire extinguishing agent is provided in the tank body; A gas generating assembly mounted on the first connecting stud; A liquid level feedback assembly is mounted on the second connecting stud; A sealing assembly installed in the nozzle stud; A connector is arranged on one side of the gas production component. The connector and the gas production component are connected through a glass fiber tube. The connector is electrically connected to the gas production component and the liquid level feedback component.
[0008] As a preferred solution of the present invention, the gas generating assembly includes a first threaded casing and an electric initiator and a gas generating agent arranged in the first threaded casing.
[0009] As a preferred solution of the present invention, wherein: the first threaded sleeve cooperates with the first connecting stud thread, the first threaded sleeve is screwed into the first connecting stud and threadedly connected with it, the first threaded sleeve is connected to the interior of the tank body, and a first sealing ring is provided at the connection between the first threaded sleeve and the first connecting stud.
[0010] As a preferred solution of the present invention, the electric initiator is electrically connected to the connector via a wire, and the wire connecting the electric initiator and the connector is arranged in the glass fiber tube.
[0011] As a preferred solution of the present invention, the liquid level feedback assembly includes a second threaded casing, a float and a sensor arranged in the second threaded casing, a nut is arranged at one end of the second threaded casing, a reference rod is arranged at the other end of the second threaded casing, the float is the angle sensing structure of the sensor, and one end of the float is rotatably arranged on the reference rod.
[0012] As a preferred solution of the present invention, the second threaded sleeve is matched with the second connecting stud thread, the second threaded sleeve is screwed into the second connecting stud and is threadedly connected thereto, the reference rod and the float of the liquid level feedback assembly are located in the tank body, and a second sealing ring is provided between the nut of the second threaded sleeve and the second connecting stud; A first transmission rod, a second transmission rod, and a first sector gear and a second sector gear meshing with each other are also provided on one side of the reference rod. The first sector gear is connected to the float through a straight rod. The float rotates coaxially with the first sector gear. A rotating shaft is inserted through the first transmission rod. One end of the rotating shaft is connected to the reference rod. One end of the first transmission rod is connected to the middle part of the second sector gear. The other end of the first transmission rod is hinged to the second transmission rod. An end of the second transmission rod away from the first transmission rod is connected to an indicator plate. A display shell is arranged on the top of the tank body, and the indicator plate on the second transmission rod penetrates the tank body and is placed in the display shell.
[0013] As a preferred solution of the present invention, the sensor of the liquid level feedback assembly is electrically connected to the connector via a wire, and the wire connecting the sensor and the connector is fixed on one side of the tank body.
[0014] As a preferred solution of the present invention, the sealing assembly includes two sealing gaskets, a bursting disc and a hexagonal nut arranged in the nozzle stud, a through hole is arranged between the nozzle stud and the tank body, the inner diameter of the through hole is smaller than the inner diameter of the nozzle stud, and the bursting disc is arranged between the two sealing gaskets and installed together in the through hole of the nozzle stud.
[0015] As a preferred solution of the present invention, the hexagon socket nut cooperates with the thread of the nozzle stud, the hexagon socket nut is screwed into the nozzle stud and threadedly connected thereto, one end of the hexagon socket nut is pressed against the sealing gasket, and a spray hole is provided in the middle of the hexagon socket nut.
[0016] A working method of a perfluorohexanone fire extinguishing device with a liquid level feedback function, including a liquid level monitoring action and a fire extinguishing action; The liquid level monitoring action comprises the following steps: Step (A1), constantly monitoring the liquid level of the perfluorohexanone fire extinguishing agent in the tank through a liquid level feedback component; Step (B1), the liquid level state of the perfluorohexanone fire extinguishing agent includes a normal liquid level state and an abnormal liquid level state; Normal liquid level state: When the angle between the float of the liquid level feedback component and the reference rod is 0°~8°, the sensor circuit of the liquid level feedback component is in the on state. At this time, the liquid level of the perfluorohexanone fire extinguishing agent is in the normal state; Abnormal liquid level state: When the perfluorohexanone fire extinguishing agent in the tank leaks and the liquid level of the perfluorohexanone fire extinguishing agent drops, and the angle between the float of the liquid level feedback component and the reference rod is greater than 8°, the sensor circuit of the liquid level feedback component is in a disconnected state. At this time, the liquid level of the perfluorohexanone fire extinguishing agent is in an abnormal state, and an alarm signal is output to prompt personnel to check and deal with it; The fire extinguishing action comprises the following steps: Step (A2), electrically connecting the connector on one side of the tank body to an external detection device. When a fire occurs, the detection device senses the temperature rise and sends a start signal to the connector to start the gas production component; In step (B2), after the electric initiator of the gas generating component is started, a high-energy heat source is generated, causing the gas generating agent to undergo a chemical reaction to generate a large amount of gas. The gas fills the tank in a very short time, causing the gas pressure inside the tank to quickly reach the injection pressure, breaking through the bursting disc in the nozzle stud, and spraying the perfluorohexanone fire extinguishing agent from the nozzle stud to extinguish the fire.
[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The liquid level feedback component of the present invention is in a normally closed state, that is, the sensor circuit of the liquid level feedback component is connected, and the liquid level state of the perfluorohexanone fire extinguishing agent inside the fire extinguishing device can be monitored at any time. When the liquid level of the perfluorohexanone fire extinguishing agent drops to a set threshold, the liquid level feedback component state is changed to a normally open state, that is, the sensor circuit of the liquid level feedback component is disconnected, and an alarm signal is output to prompt the management personnel to conduct detection and disposal, thereby avoiding the problem that the fire extinguishing device cannot extinguish the fire due to leakage or insufficient fire extinguishing agent; 2. The float in the liquid level feedback assembly of the present invention drives the indicator plate to rise and fall through a mechanical transmission structure. The green indicator on the indicator plate indicates that the liquid level is normal, and the red indicator indicates that the liquid level is abnormal. If the circuit of the liquid level feedback assembly fails, the indicator plate can be used to determine whether the liquid level in the tank is normal, so as to compensate for the situation where the circuit fails and the alarm cannot be sounded; 3. The liquid level feedback component of the present invention is made of stainless steel, which is corrosion-resistant and resistant to high and low temperatures, and meets the requirements of long-term use. The conversion of the normally closed and normally open states of the liquid level feedback component can be achieved by changing the height or angle of the float, and the liquid level feedback component has the advantages of simple structure, reliable operation, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 2 For the present invention Figure 1A schematic diagram of the enlarged structure at A in the middle; Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure at B in the middle; Figure 4 It is a schematic diagram of a top cross-sectional structure of the present invention; Figure 5 It is a structural schematic diagram of the liquid level feedback assembly of the present invention when the liquid level is normal; Figure 6 It is a structural schematic diagram of the liquid level feedback component of the present invention when the liquid level is abnormal.
[0019] In the figure: 1, tank body; 101, display shell; 2, front cover; 201, first connecting stud; 3, rear cover; 301, second connecting stud; 302, nozzle stud; 4, perfluorohexanone fire extinguishing agent; 5, gas generating component; 501, first threaded casing; 502, first sealing ring; 6, liquid level feedback component; 601, second threaded casing; 602, float; 603, nut; 604, reference rod; 605, second sealing ring; 606, first transmission rod; 607, second transmission rod; 608, first sector gear; 609, second sector gear; 610, straight rod; 611, indicator plate; 7, sealing component; 701, sealing gasket; 702, bursting disc; 703, hexagon socket nut; 8, connector; 9, fiberglass tube. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] See also Figure 1-Figure 6 A perfluorohexanone fire extinguishing device with a liquid level feedback function comprises a tank body 1, a front end cover 2 is arranged at one end of the tank body 1, a rear end cover 3 is arranged at the other end of the tank body 1, a first connecting stud 201 is arranged in the middle of the front end cover 2, and a second connecting stud 301 and a nozzle stud 302 are arranged on both sides of the rear end cover 3, and a perfluorohexanone fire extinguishing agent 4 is arranged in the tank body 1; The gas generating assembly 5 is mounted on the first connecting stud 201; The liquid level feedback assembly 6 is mounted on the second connecting stud 301; The sealing assembly 7 is installed in the nozzle stud 302; The connector 8 is arranged on one side of the gas production component 5. The connector 8 is connected to the gas production component 5 through a glass fiber tube 9. The connector 8 is electrically connected to the gas production component 5 and the liquid level feedback component 6. It should be noted that the tank body 1 is a stainless steel shell of 60mm×60mm×260mm or 60mm×60mm×420mm. The two end faces are welded by the front end cover 2 and the rear end cover 3 of the bent parts. Screw waist holes are embedded at the four corners. The front end cover 2 is welded with a first connecting stud 201 of M22×1.5, and the rear end cover 3 is welded with a second connecting stud 301 of M22×1.5 and a nozzle stud 302 of G1 / 4.
[0022] In this embodiment, the gas generating assembly 5 includes a first threaded casing 501 and an electric initiator and a gas generating agent disposed in the first threaded casing 501; It should be noted that the gas generating agent is a solid aerosol gas generating agent. When the electric initiator is started, a high-energy heat source is generated to cause the gas generating agent to undergo a chemical reaction, thereby generating a large amount of gas. The electric initiator can be started normally when the external DC power supply is DC3V-24V and the current is greater than 1A. The first threaded casing 501 is threadably matched with the first connecting stud 201, the first threaded casing 501 is screwed into the first connecting stud 201 and is threadably connected thereto, the first threaded casing 501 is communicated with the interior of the tank body 1, and a first sealing ring 502 is provided at the connection between the first threaded casing 501 and the first connecting stud 201; The electric initiator is electrically connected to the connector 8 through a wire, and the wire connecting the electric initiator and the connector 8 is arranged in the fiberglass tube 9. Specifically, the electric initiator is connected to the connector 8 through two wires, and the crimping terminals on the two wires are inserted into pin one and pin two of the connector 8.
[0023] In this embodiment, the liquid level feedback assembly 6 includes a second threaded casing 601, a float 602 and a sensor disposed in the second threaded casing 601. Specifically, the sensor is an angle sensor. A nut 603 is disposed at one end of the second threaded casing 601, and a reference rod 604 is disposed at the other end of the second threaded casing 601. The float 602 is a rotation angle sensing structure of the sensor, and one end of the float 602 is rotatably disposed on the reference rod 604. It should be noted that the float 602 is located below the reference rod 604, and the maximum angle between the float 602 and the reference rod 604 is 25°~35°. The structure of the float 602 includes a float barrel, a connecting rod and two L-shaped plates, one end of the connecting rod is connected to the float barrel, and the other end of the connecting rod is connected to the two L-shaped plates, wherein the two L-shaped plates are symmetrically arranged on both sides of the connecting rod, and the float 602 is pinned to the reference rod 604 through the L-shaped plate to form a rotational connection between the two, so that the float 602 can rotate up and down to realize the on-off switching of the sensor circuit; The second threaded casing 601 is threadably matched with the second connecting stud 301, the second threaded casing 601 is screwed into the second connecting stud 301 and is threadably connected thereto, the reference rod 604 and the float 602 of the liquid level feedback assembly 6 are located in the tank body 1, and a second sealing ring 605 is provided between the nut 603 of the second threaded casing 601 and the second connecting stud 301; A first transmission rod 606, a second transmission rod 607, and a first sector gear 608 and a second sector gear 609 meshing with each other are also provided on one side of the reference rod 604. The first sector gear 608 is connected to the float 602 through a straight rod 610. The float 602 rotates coaxially with the first sector gear 608. A rotating shaft is inserted into the first transmission rod 606. One end of the rotating shaft is connected to the reference rod 604. One end of the first transmission rod 606 is connected to the middle part of the second sector gear 609. The other end of the first transmission rod 606 is hinged to the second transmission rod 607. An end of the second transmission rod 607 away from the first transmission rod 606 is connected to an indicating plate 611. A display shell 101 is provided on the top of the tank body 1, and an indicator plate 611 on the second transmission rod 607 penetrates the tank body 1 and is placed in the display shell 101. Specifically, the upper half of the indicator plate 611 is green, and the lower half is red. The upper half of the display shell 101 is an opaque shell, and the lower half is a transparent shell. When the upper half of the indicator plate 611 is in the transparent shell of the lower half of the display shell 101, it is displayed in green, indicating that the liquid level is normal. When the lower half of the indicator plate 611 is in the transparent shell of the lower half of the display shell 101, it is displayed in red, indicating that the liquid level is abnormal. It should be noted that when the liquid level of the perfluorohexanone fire extinguishing agent 4 in the tank body 1 decreases, the float 602 of the liquid level feedback assembly 6 rotates downward and drives the first sector-shaped tooth to rotate coaxially, and the first sector-shaped tooth drives the second sector-shaped tooth and the first transmission rod 606 to rotate along the shaft, thereby pushing the second transmission rod 607 and the indicator plate 611 to slide upward, and the red indicator mark on the lower half of the indicator plate 611 moves to the transparent shell of the display shell 101 to display red, indicating that the liquid level of the tank body 1 is abnormal. If the circuit of the liquid level feedback assembly 6 fails, the indicator plate 611 can be used to judge whether the liquid level in the tank body 1 is normal, so as to make up for the situation that the circuit fails and the alarm cannot be given; The sensor of the liquid level feedback assembly 6 is electrically connected to the connector 8 through a wire, and the wire connecting the sensor and the connector 8 is fixed on one side of the tank body 1. Specifically, the sensor is connected to the connector 8 through two wires, and the crimping terminals on the two wires are inserted into pins four and six of the connector 8.
[0024] In this embodiment, the sealing assembly 7 includes two sealing pads 701, a bursting disc 702 and a hexagon socket nut 703 arranged in the nozzle stud 302. A through hole is arranged between the nozzle stud 302 and the tank body 1. The inner diameter of the through hole is smaller than the inner diameter of the nozzle stud 302. The bursting disc 702 is arranged between the two sealing pads 701 and is installed together in the through hole of the nozzle stud 302. The hexagon socket nut 703 matches with the thread of the nozzle stud 302, and the hexagon socket nut 703 is screwed into the nozzle stud 302 to be threadedly connected thereto, one end of the hexagon socket nut 703 presses against the sealing gasket 701, and a spray hole is provided in the middle of the hexagon socket nut 703; It should be noted that the size of the nozzle needs to be designed in combination with the gas production pressure and the strength of the bursting disc 702, and determined through experimental verification methods, so that the product meets the requirement of the injection time of less than 10 seconds in the T.CECS10171-2022 prefabricated perfluorohexanone fire extinguishing device standard.
[0025] The working method of the perfluorohexanone fire extinguishing device with liquid level feedback function of the present invention includes liquid level monitoring action and fire extinguishing action; The liquid level monitoring action includes the following steps: Step (A1), constantly monitoring the liquid level of the perfluorohexanone fire extinguishing agent 4 in the tank 1 through the liquid level feedback component 6; Step (B1), the liquid level state of the perfluorohexanone fire extinguishing agent 4 includes a normal liquid level state and an abnormal liquid level state; Normal liquid level state: when the angle between the float 602 of the liquid level feedback component 6 and the reference rod 604 is 0°~8°, the sensor circuit of the liquid level feedback component 6 is in the on state, and at this time, the liquid level of the perfluorohexanone fire extinguishing agent 4 is in the normal state; Abnormal liquid level state: when the perfluorohexanone fire extinguishing agent 4 in the tank 1 leaks and the liquid level of the perfluorohexanone fire extinguishing agent 4 drops, and the angle between the float 602 of the liquid level feedback component 6 and the reference rod 604 is greater than 8°, the sensor circuit of the liquid level feedback component 6 is in a disconnected state. At this time, the perfluorohexanone fire extinguishing agent 4 is in an abnormal liquid level state, and an alarm signal is output to prompt personnel to check and deal with it; The fire extinguishing action includes the following steps: Step (A2), electrically connecting the connector 8 on one side of the tank body 1 to an external detection device. When a fire occurs, the detection device senses the temperature rise and sends a start signal to the connector 8 to start the gas production component 5; In step (B2), after the electric initiator of the gas generating component 5 is started, a high-energy heat source is generated, causing the gas generating agent to undergo a chemical reaction to generate a large amount of gas. The gas fills the tank body 1 in a very short time, causing the gas pressure inside the tank body 1 to quickly reach the injection pressure, breaking through the bursting disc 702 in the nozzle stud 302, and spraying the perfluorohexanone fire extinguishing agent 4 from the nozzle stud 302 to extinguish the fire.
[0026] When the present invention is implemented, the fire extinguishing device is often used as a vehicle-mounted fire extinguishing equipment. The entire fire extinguishing system consists of a fire extinguishing device, a controller, a detection device and a power supply. In the normal monitoring state, the circuit is in a disconnected state; the detection devices of the vehicle-mounted control and detection system mainly include a mechanical temperature-sensitive magnetic power generation component and a temperature-sensitive cable, and these two detection devices are usually in a disconnected state; in the event of a fire, if any point on the temperature-sensitive cable senses a temperature of 138°C, the temperature-sensitive cable is short-circuited, the circuit is connected, and the power supply is supplied to realize electric starting; if the mechanical temperature-sensitive magnetic power generation component senses 110°C, the fusible alloy element on it melts, the circuit is connected, and the magnetic component instantly generates a current of not less than 1A to realize electric starting; in an emergency, it can also be started by the emergency start-stop button on the controller, and the power supply is turned on to realize electric starting; When a fire occurs, the two detection devices of the on-board control and detection system will trigger the detection devices to operate when they sense that the temperature reaches 110°C and 138°C respectively, and the power will be turned on to realize electric start. The gas-producing component will generate driving gas after electric start, so that the gas pressure inside the tank of the fire extinguishing device quickly reaches the injection pressure, breaking through the bursting disc in the nozzle stud, and spraying the perfluorohexanone fire extinguishing agent in the body to extinguish the fire in the protected space. At the same time, the liquid level feedback component in the fire extinguishing device switches from normally closed to normally open, and outputs a feedback signal to the on-board control and detection system that the fire extinguishing device has been started.
[0027] In summary, the liquid level feedback component of the perfluorohexanone fire extinguishing device can monitor the liquid level status of the perfluorohexanone fire extinguishing agent inside the fire extinguishing device at all times. When the perfluorohexanone fire extinguishing agent leaks, it can prompt the management personnel to conduct detection and disposal, thereby avoiding the problem that there is no fire extinguishing agent or insufficient fire extinguishing agent inside the fire extinguishing device due to leakage, and the fire cannot be extinguished.
[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A perfluorohexanone fire extinguishing device with liquid level feedback function, characterized in that: include, A tank body (1), wherein a front end cover (2) is disposed at one end of the tank body (1), a rear end cover (3) is disposed at the other end of the tank body (1), a first connecting stud (201) is disposed in the middle of the front end cover (2), and second connecting studs (301) and nozzle studs (302) are disposed on both sides of the rear end cover (3), and a perfluorohexanone fire extinguishing agent (4) is disposed in the tank body (1); A gas generating assembly (5) mounted on the first connecting stud (201); A liquid level feedback component (6) mounted on the second connecting stud (301); A sealing assembly (7) installed in the nozzle stud (302); A connector (8) is arranged on one side of the gas production component (5), the connector (8) and the gas production component (5) are connected via a glass fiber tube (9), and the connector (8) is electrically connected to the gas production component (5) and the liquid level feedback component (6).
2. The perfluorohexanone fire extinguishing device with liquid level feedback function according to claim 1, characterized in that: The gas generating component (5) comprises a first threaded casing (501), and an electric initiator and a gas generating agent arranged in the first threaded casing (501).
3. The perfluorohexanone fire extinguishing device with liquid level feedback function according to claim 2, characterized in that: The first threaded sleeve (501) is threadably matched with the first connecting stud (201); the first threaded sleeve (501) is screwed into the first connecting stud (201) and threadably connected thereto; the first threaded sleeve (501) is communicated with the interior of the tank body (1); a first sealing ring (502) is provided at the connection between the first threaded sleeve (501) and the first connecting stud (201).
4. The perfluorohexanone fire extinguishing device with liquid level feedback function according to claim 3 is characterized in that: The electric initiator is electrically connected to the connector (8) via a wire, and the wire connecting the electric initiator and the connector (8) is arranged in the glass fiber tube (9).
5. The perfluorohexanone fire extinguishing device with liquid level feedback function according to claim 1 or 4, characterized in that: The liquid level feedback component (6) comprises a second threaded casing (601), a float (602) and a sensor arranged in the second threaded casing (601); a nut (603) is arranged at one end of the second threaded casing (601); a reference rod (604) is arranged at the other end of the second threaded casing (601); the float (602) is a rotation angle sensing structure of the sensor; one end of the float (602) is rotatably arranged on the reference rod (604).
6. The perfluorohexanone fire extinguishing device with liquid level feedback function according to claim 5, characterized in that: The second threaded casing (601) is threadably matched with the second connecting stud (301); the second threaded casing (601) is screwed into the second connecting stud (301) and is threadably connected thereto; the reference rod (604) and the float (602) of the liquid level feedback assembly (6) are located in the tank body (1); and a second sealing ring (605) is provided between the nut (603) of the second threaded casing (601) and the second connecting stud (301); A first transmission rod (606), a second transmission rod (607), and a first sector gear (608) and a second sector gear (609) meshing with each other are also provided on one side of the reference rod (604); the first sector gear (608) is connected to the float (602) via a straight rod (610); the float (602) and the first sector gear (608) rotate coaxially; a rotating shaft is inserted through the first transmission rod (606); one end of the rotating shaft is connected to the reference rod (604); one end of the first transmission rod (606) is connected to the middle of the second sector gear (609); the other end of the first transmission rod (606) is hinged to the second transmission rod (607); and an indicator plate (611) is connected to one end of the second transmission rod (607) away from the first transmission rod (606); A display shell (101) is provided on the top of the tank body (1), and the indicator plate (611) on the second transmission rod (607) passes through the tank body (1) and is placed inside the display shell (101).
7. The perfluorohexanone fire extinguishing device with liquid level feedback function according to claim 6, characterized in that: The sensor of the liquid level feedback assembly (6) is electrically connected to the connector (8) via a wire, and the wire connecting the sensor and the connector (8) is fixed on one side of the tank body (1).
8. The perfluorohexanone fire extinguishing device with liquid level feedback function according to claim 1 or 7, characterized in that: The sealing assembly (7) comprises two sealing pads (701) arranged in the nozzle stud (302), a bursting disc (702) and a hexagon socket nut (703); a through hole is arranged between the nozzle stud (302) and the tank body (1); the inner diameter of the through hole is smaller than the inner diameter of the nozzle stud (302); the bursting disc (702) is arranged between the two sealing pads (701) and is installed together in the through hole of the nozzle stud (302).
9. The perfluorohexanone fire extinguishing device with liquid level feedback function according to claim 8, characterized in that: The hexagon socket nut (703) matches the thread of the nozzle stud (302), the hexagon socket nut (703) is screwed into the nozzle stud (302) and is threadably connected thereto, one end of the hexagon socket nut (703) is pressed against the sealing gasket (701), and a spray hole is provided in the middle of the hexagon socket nut (703).
10. The working method of the perfluorohexanone fire extinguishing device with liquid level feedback function according to any one of claims 1 to 9, characterized in that: Including liquid level monitoring action and fire extinguishing action; The liquid level monitoring action comprises the following steps: Step (A1), constantly monitoring the liquid level of the perfluorohexanone fire extinguishing agent (4) in the tank (1) through the liquid level feedback component (6); In step (B1), the liquid level state of the perfluorohexanone fire extinguishing agent (4) includes a normal liquid level state and an abnormal liquid level state; Normal liquid level state: when the angle between the float (602) of the liquid level feedback component (6) and the reference rod (604) is 0° to 8°, the sensor circuit of the liquid level feedback component (6) is in an on state, and at this time, the liquid level of the perfluorohexanone fire extinguishing agent (4) is in a normal state; Abnormal liquid level state: when the perfluorohexanone fire extinguishing agent (4) in the tank (1) leaks and the liquid level of the perfluorohexanone fire extinguishing agent (4) drops, and the angle between the float (602) of the liquid level feedback component (6) and the reference rod (604) is greater than 8°, the sensor circuit of the liquid level feedback component (6) is in a disconnected state. At this time, the liquid level of the perfluorohexanone fire extinguishing agent (4) is in an abnormal state, and an alarm signal is output to prompt personnel to conduct inspection and disposal; The fire extinguishing action comprises the following steps: Step (A2), electrically connecting the connector (8) on one side of the tank body (1) to an external detection device, so that when a fire occurs, the detection device senses a temperature rise and sends a start signal to the connector (8), thereby starting the gas production component (5); In step (B2), after the electric initiator of the gas generating component (5) is activated, a high-energy heat source is generated, causing the gas generating agent to undergo a chemical reaction, thereby generating a large amount of gas. The gas fills the tank body (1) in a very short time, causing the gas pressure inside the tank body (1) to quickly reach the injection pressure, breaking through the bursting disc (702) in the nozzle stud (302), and spraying the perfluorohexanone fire extinguishing agent (4) from the nozzle stud (302) to extinguish the fire.