Miniature direct installation magnetic type fire extinguishing device

Abstract

The utility model relates to the technical field of miniature fire extinguishing device structures, in particular to a miniature direct installation magnetic type fire extinguishing device which comprises a fire extinguishing device tank body, a nozzle and a magnetic piece, the nozzle is arranged at the bottom of the fire extinguishing device tank body and sprays out a fire extinguishing agent stored in the fire extinguishing device tank body; the magnetic attraction part is arranged at the top of the fire extinguishing device tank body, the magnetic attraction part is fixedly connected with the fire extinguishing device tank body, and the magnetic attraction part is used for connecting the fire extinguishing device tank body with the magnetic metal plate. The fire extinguishing device is fixed to the metal plate at the top of the electric cabinet / equipment cabinet through the magnetic attraction piece, rapid installation of the fire extinguishing device is achieved, and the installed fire extinguishing device is tightly attracted to the top of the electric cabinet / equipment cabinet and does not shake.

Description

Technical Field

[0001] The utility model relates to the technical field of micro fire extinguishing device structures, in particular to a micro direct-mounted magnetic fire extinguishing device. Background Art

[0002] Miniature fire extinguishing devices, especially stainless steel heptafluoropropane fire extinguishing devices, are highly efficient automatic fire extinguishing equipment, which are widely used to protect important places and spaces such as computer rooms, communication facilities, transformer rooms, archives, libraries, scientific research laboratories, valuable equipment and cargo storage. This type of fire extinguishing device uses heptafluoropropane as the extinguishing agent.

[0003] The working principle of this type of fire extinguishing device is that the suspended HFC-227ea fire extinguishing device automatically starts by detecting smoke or temperature changes at the early stage of a fire, and releases HFC-227ea fire extinguishing agent. HFC-227ea achieves the purpose of extinguishing the fire by rapidly reducing the oxygen concentration in the fire area and absorbing heat and cooling.

[0004] The advantages of this type of fire extinguishing device are that heptafluoropropane has stable chemical properties, high fire extinguishing efficiency, and is relatively safe for equipment and personnel. In addition, heptafluoropropane is easy to volatilize after extinguishing a fire, leaving no fire extinguishing residue, reducing secondary damage to equipment.

[0005] The present application is directed to a stainless steel heptafluoropropane fire extinguishing device used in electrical cabinets and machine cabinets. Due to the particularity of the electrical control of electrical cabinets and machine cabinets, fires may be caused by electrical failures, overheating, short circuits or arcs caused by dust accumulation. However, no fire-fighting equipment is installed inside existing electrical cabinets and machine cabinets. At the same time, due to the limited internal space of electrical cabinets and machine cabinets, large-scale fire-fighting equipment cannot be used inside.

[0006] In the utility model patent with patent application number 202322192718.2, a fire extinguishing device that is easy to hang is disclosed, which belongs to the technical field of fire extinguishing devices. It solves the problem that the current suspended fire extinguishing devices are more troublesome when hanging and installing. The fire extinguishing device that is easy to hang includes a suspended fire extinguishing device body and a fire extinguishing device nozzle installed at the bottom of the suspended fire extinguishing device body. The top of the suspended fire extinguishing device body is provided with a mounting rod, and a hanging ring body is fixed above the mounting rod. A mounting plate is fixed in the middle of the surface of the suspended fire extinguishing device body, and the mounting plate is arranged in a ring shape. The utility model can facilitate the staff to adjust the direction of the hanging ring on the fire extinguishing device in real time according to the installation situation when the staff lifts and suspends the fire extinguishing device, so that the fire extinguishing device can be quickly suspended at the fixed hook on the ceiling, and the fire extinguishing device is provided with a deployable lifting structure on both sides, so that the staff can lift the fire extinguishing device close to the hanging position, which provides convenience for the staff's hanging installation work.

[0007] Although the above-mentioned fire extinguishing device can be hung in an electric cabinet / cabinet for fire fighting, the top thereof is still installed by a hanging ring, and a hook needs to be provided on the top of the electric cabinet / cabinet, and the fire extinguishing device is easy to shake when spraying inside the electric cabinet / mechanism. Utility Model Content

[0008] In view of the above problems, the utility model provides a miniature direct-mounted magnetic fire-fighting extinguishing device. A magnetic suction piece is arranged on the top of the fire extinguishing device tank, and the magnetic suction piece is a strong magnetic suction piece. The fire extinguishing device is fixed to the metal plate on the top of the electric cabinet / cabinet by the magnetic suction piece, so that the fire extinguishing device can be quickly installed. After installation, the fire extinguishing device is tightly adsorbed on the top of the electric cabinet / cabinet and will not shake.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A miniature direct-mounted magnetic fire-fighting extinguishing device, comprising a fire-fighting device tank body, and also comprising:

[0011] Nozzle and magnetic parts;

[0012] The nozzle is arranged at the bottom of the fire extinguishing device tank, and the nozzle sprays the fire extinguishing agent stored in the fire extinguishing device tank;

[0013] The magnetic attraction component is arranged on the top of the fire extinguishing device tank body, the magnetic attraction component is fixedly connected to the fire extinguishing device tank body, and the magnetic attraction component is used to connect the fire extinguishing device tank body and the magnetic metal plate on the top of the electric cabinet / cabinet.

[0014] As an improvement, a glass bulb for controlling the opening and closing of the nozzle is arranged at the nozzle, the glass bulb is filled with a liquid temperature-sensitive medium, and the glass bulb bursts when the temperature reaches 68° C., thereby opening the nozzle.

[0015] As an improvement, an impact driver for striking the glass bubble is arranged at the nozzle, and the impact driver is activated by thermal initiation or electrical initiation.

[0016] As an improvement, the impact driver is connected to a thermistor wire, and the design temperature of the thermistor wire is 175°C.

[0017] As an improvement, the impact driver is connected to the temperature / smoke alarm via a fire alarm system.

[0018] As an improvement, a dispersion disk is provided at the spray hole of the nozzle.

[0019] As an improvement, a pressure gauge is provided on the nozzle, and the pressure gauge monitors the pressure inside the tank of the fire extinguishing device.

[0020] As an improvement, a filling interface for filling fire extinguishing agent and nitrogen is provided on the nozzle, and a charging locking switch for controlling the filling interface switch is provided at the filling interface.

[0021] As an improvement, a mechanical pressure feedback device is provided on the nozzle, and the mechanical pressure feedback device is connected to the main control room via a wired signal.

[0022] The beneficial effects of the utility model are:

[0023] (1) The utility model uses a strong magnetic attraction component to fix the fire extinguishing device on the metal plate on the top of the electric cabinet / cabinet by arranging a magnetic attraction component on the top of the fire extinguishing device tank, thereby realizing the rapid installation of the fire extinguishing device. The installed fire extinguishing device is tightly adsorbed on the top of the electric cabinet / cabinet without shaking.

[0024] (2) The utility model uses a glass bulb as a switch to start the fire extinguishing device. At 68°C, the liquid temperature-sensitive medium inside the glass bulb expands to a level that the glass bulb cannot contain, and then ruptures, causing the fire extinguishing device to trigger and spray out the fire extinguishing agent. The glass bulb serves as the first starting measure, and an impact driver is also provided next to the glass bulb. The impact driver can be thermally or electrically triggered to cause the glass bulb to break and then trigger the fire extinguishing device, which serves as the second starting measure and is faster, more reliable and more stable.

[0025] (3) The utility model uses a 175°C triggered thermistor wire to connect with a glass bulb, and then the thermistor wire is wound around the electrical cabinet / cabinet, so that when the thermistor wire senses a fire source, the thermistor wire can directly activate the impact driver to break the glass bulb, thereby activating the fire extinguishing device, making the fire extinguishing device more sensitive and having a better fire extinguishing effect;

[0026] (4) The utility model utilizes a temperature / smoke alarm to be electrically connected to an impact driver, so that when the temperature / smoke alarm senses smoke or temperature, the impact driver can be activated to break the glass bulb, thereby activating the fire extinguishing device, making the fire extinguishing device more sensitive and having a better fire extinguishing effect;

[0027] (5) The utility model provides a mechanical pressure feedback device on the fire extinguishing device. When the fire extinguishing device loses pressure, the mechanical pressure feedback device sends out an alarm signal to indicate a fire or feedback a fire extinguishing device failure, so that the staff can understand the situation as soon as possible and then deal with the fire or repair the fire extinguishing device.

[0028] In summary, the utility model has the advantages of quick installation, strong pertinence, good fire extinguishing effect, sensitive triggering, etc., and is particularly suitable for the technical field of micro fire extinguishing device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the front view structure of the 1.8L fire extinguishing device of the utility model;

[0030] Figure 2 This is a schematic diagram of the front view structure of the 2.58L fire extinguishing device of the utility model;

[0031] Figure 3 This is a schematic diagram of the installation connection structure of the nozzle and the tank of the fire extinguishing device of the utility model;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the nozzle of the utility model;

[0033] Figure 5 This is a schematic diagram of the connection structure between the thermal wire and the impact driver of the utility model;

[0034] Figure 6 This is a schematic diagram of the connection structure between the temperature / smoke alarm and the impact driver of the utility model.

[0035] In the figure: 1. Fire extinguishing device tank, 2. Nozzle, 21. Glass bulb, 22. Impact driver, 221. Thermistor, 222. Temperature / smoke alarm, 23. Dispersion disk, 24. Pressure gauge, 25. Filling interface, 26. Inflating lock switch, 27. Mechanical pressure feedback device, 3. Magnetic suction part, 4. Electric cabinet / cabinet, 5. Fire alarm system. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Embodiment 1:

[0040] like Figures 1 to 4 As shown, a miniature direct-mounted magnetic fire extinguishing device includes a fire extinguishing device tank body 1, and also includes:

[0041] Nozzle 2 and magnetic attraction part 3;

[0042] The nozzle 2 is arranged at the bottom of the fire extinguishing device tank body 1, and the nozzle 2 sprays the fire extinguishing agent stored in the fire extinguishing device tank body 1;

[0043] The magnetic component 3 is arranged on the top of the fire extinguishing device tank body 1, and the magnetic component 3 is fixedly connected to the fire extinguishing device tank body 1, and the magnetic component 3 is used to connect the fire extinguishing device tank body 1 and the magnetic metal plate on the top of the electric cabinet / cabinet.

[0044] It should be emphasized here that the fire extinguishing device of the present invention is not limited to use inside an electrical cabinet / cabinet, but can be used in any place where fire fighting is used in a small space.

[0045] The fire extinguishing device tank body 1 of the utility model is a flat spherical tank body, and the volume of the fire extinguishing device tank body 1 is 1.8L or 2.58L respectively, and the filling density is ≤90%, so that the fire extinguishing device tank body 1 forms two specifications of fire extinguishing devices containing 1.5kg and 2kg of fire extinguishing agent. The fire extinguishing device is adsorbed on the metal top plate of the electric cabinet / cabinet through the magnetic suction member 3. The magnetic suction member 3 uses a strong permanent magnet. The magnetic suction member 3 tightly fixes the fire extinguishing device tank body 1 on the top plate of the electric cabinet / cabinet 4.

[0046] It is further explained that the fire extinguishing agent is heptafluoropropane, but it is not limited to heptafluoropropane. All fire extinguishing agents that meet the fire extinguishing effect of the utility model are within the protection scope of the utility model. Among them, the 1.8L fire extinguishing device is aimed at the protection volume of the electric cabinet / cabinet of 2.25m 3 , Test cabinet / cabinet internal dimensions: 120.5 * 84.5 * 221 = 2.25m 3 , External dimensions: 122.5 * 85 * 223.5 = 2.32m 3 .

[0047] The 2.58L fire extinguishing device is designed to protect a 3m2 volume of electrical cabinets / cabinets.3 , Test cabinet / cabinet inner dimensions: inner dimensions: 160.5 * 84.5 * 221 = 3.0m 3 , outer dimensions: 161.5 * 85 * 223.5 = 3.06 m 3 .

[0048] Embodiment 2:

[0049] Embodiment 2 of the present invention is described with reference to Embodiment 1. The differences from Embodiment 1 are as follows:

[0050] like Figure 3 As shown, the nozzle 2 is provided with a glass bulb 21 for controlling the on and off of the nozzle 2 . The glass bulb 21 is filled with a liquid temperature-sensitive medium, and the glass bulb 21 bursts when the temperature reaches 68° C. to open the nozzle 2 .

[0051] The nozzle 2 is provided with an impact driver 22 for striking the glass bulb 21 , and the impact driver 22 is activated by thermal initiation or electrical initiation.

[0052] It should be noted that the utility model adopts multiple detection activation. The fire extinguishing device not only uses the glass bulb 21 to be activated by temperature-sensitive bursting, but also uses the impact driver 22 to break the glass bulb 21 to activate, thereby achieving the purpose of dual detection activation.

[0053] The liquid temperature-sensitive medium inside the glass bulb 21 is an alcohol mixture. When the temperature reaches 68°C, the liquid temperature-sensitive medium continues to expand, causing the glass bulb to expand and burst, thereby activating the fire extinguishing device. The liquid temperature-sensitive medium can select a suitable temperature (57 / 68 / 79 / 93 / 141°C) according to the installation environment.

[0054] In addition, the working principle of the impact driver 22 is:

[0055] In the standby state, the striker is kept in a pre-installed state by a pre-loaded spring or other mechanical energy storage element (such as rubber spring, compressed air, etc.). In this state, the force of the spring is restrained, and the striking part of the striker keeps a certain distance from the glass bulb to avoid accidental triggering.

[0056] The striker's restraint mechanism is released when the fire suppression system detects a preset trigger condition, such as temperature reaching a certain threshold, smoke or flame being detected. These conditions are usually detected by sensors connected to the system.

[0057] Once the trigger mechanism is activated, the locking device (which may be a screw, pin, magnet, or electronic lock, etc.) that restrains the striker spring is released. The released spring or compression energy quickly propels the striker forward, driving the striking part to strike the glass bulb.

[0058] In addition, the impact driver 22 may be provided with a chemical gas generating agent or gunpowder inside. When powered on and heated, the chemical gas generating agent or gunpowder generates high-pressure gas expansion, causing the impactor to impact the glass bulb.

[0059] The glass bulb ruptures upon impact, initiating a further chain reaction in the fire extinguishing system. In the case of an automatic sprinkler system, the ruptured glass bulb causes a change in water pressure or releases a mechanical blocker, which opens the nozzle of the fire extinguishing agent and begins to spray.

[0060] Embodiment 3:

[0061] Embodiment 3 of the present invention is described with reference to Embodiment 2. The differences compared with Embodiment 2 are as follows:

[0062] like Figure 5 As shown, when the impact driver 22 is triggered by heat, the impact driver 22 is connected to the thermistor 221, and the design temperature of the thermistor 221 is 175°C.

[0063] The thermistor is wound inside the electrical cabinet / cabinet for detection near a fire source. When there is a fire source near the thermistor, the thermistor will undergo physical changes when it reaches 175°C, such as melting, heating, breaking or deformation, thereby triggering the connected impact driver 22, and the impact driver 22 starts.

[0064] Since the thermistor wire can be distributed and wound inside the electrical cabinet / cabinet, its detection range is wider than that of the glass bulb, it is closer to the combustible material and the reaction is more sensitive.

[0065] Embodiment 4:

[0066] Embodiment 4 of the present invention is described with reference to Embodiment 2. The differences from Embodiment 2 are as follows:

[0067] like Figure 6 As shown, when the impact driver 22 is electrically triggered, the impact driver 22 is connected to the temperature / smoke alarm 222 via an intelligent control module, and the intelligent control module is integrally connected and installed with the temperature / smoke alarm 222 .

[0068] The temperature / smoke alarm 222 is a temperature or smoke alarm, or a combination of a temperature and smoke alarm. It monitors the temperature and smoke concentration inside the electrical cabinet / cabinet, and then sends an electrical signal to the fire alarm system 5. At the same time, it sends an electrical signal to the impact driver 22 through the intelligent control module. The impact driver 22 breaks the glass bubble and then activates the fire extinguishing device. It should be emphasized here that the intelligent control module on the temperature / smoke alarm 222 can be connected to the impact driver 22 and the fire alarm system through a wired connection, or it can be connected using a wireless network.

[0069] In addition, the intelligent control module on the temperature / smoke alarm 222 has an infrared remote control intelligent detection function, which is beneficial to the maintenance and inspection of the temperature / smoke alarm 222. An energy-saving alarm light is provided on it. When working, the alarm light displays red for a short time, and during inspection, the alarm light is blue for a short time. When on standby, the alarm light saves energy and does not light up. The intelligent control module and the temperature / smoke alarm 222 are equipped with disposable lithium batteries and can be on standby for 2 years.

[0070] Embodiment 5:

[0071] Embodiment 5 of the present invention is described with reference to Embodiment 1, and the differences compared with Embodiment 1 are as follows:

[0072] like Figure 3 As shown, a dispersion disk 23 is provided at the spray hole of the nozzle 2.

[0073] In order to facilitate the fire extinguishing device to spray out the fire extinguishing agent, the fire extinguishing agent is formed into an atomized state, covering the entire internal space of the electric cabinet / cabinet from the top downward, and then extinguishing the fire in the internal space of the cabinet to eliminate the fire.

[0074] Embodiment 6:

[0075] Embodiment 6 of the present invention is described with reference to Embodiment 1, and the differences compared with Embodiment 1 are as follows:

[0076] like Figure 4 As shown, a pressure gauge 24 is provided on the nozzle 2, and the pressure gauge 24 monitors the pressure inside the fire extinguishing device tank 1.

[0077] The pressure inside the fire extinguishing device tank body 1 can be monitored in real time by the pressure gauge 24 to avoid failure of the pressure inside the fire extinguishing device tank body 1 .

[0078] Embodiment 7:

[0079] Embodiment 7 of the present invention is described with reference to Embodiment 1, and the differences compared with Embodiment 1 are as follows:

[0080] like Figure 4As shown, the nozzle 2 is provided with a filling interface 25 for filling fire extinguishing agent and nitrogen, and the filling interface 25 is provided with a charging locking switch 26 for controlling the switch of the filling interface 25 .

[0081] After the fire extinguishing agent in the fire extinguishing device tank body 1 is sprayed out, the triggering parts can be replaced, and then the fire extinguishing agent and nitrogen can be filled into the fire extinguishing device tank body 1 through the filling interface 25 for pressurization, and then the fire extinguishing device tank body 1 can be put into use again, and the charging locking switch 26 is used to lock the filling interface 25 to prevent the leakage of the fire extinguishing agent and nitrogen.

[0082] Embodiment 8:

[0083] Embodiment 8 of the present invention is described with reference to Embodiment 1, and the differences compared with Embodiment 1 are as follows:

[0084] like Figure 4 As shown, the nozzle 2 is provided with a mechanical pressure feedback device 27, and the mechanical pressure feedback device 27 is connected to the main control room via a wired signal.

[0085] When the impact starter is started by a thermistor, a mechanical pressure feedback device 27 is provided on the nozzle 2 due to the lack of an alarm device. The working principle of the mechanical pressure feedback device 27 is that in the standby state, the two sets of metal contacts on the mechanical pressure feedback device 27 are not in contact, and when the fire extinguishing device starts to spray the fire extinguishing agent, or when a leak occurs inside the fire extinguishing device and the pressure changes, the two sets of metal contacts come into contact, triggering the mechanical pressure feedback device 27 to send out a set of signals, which are received by the main control room through the signal line, thereby activating the fire alarm to remind the staff of the fire or the failure of the fire extinguishing device.

[0086] When using a smoke / temperature alarm, since a fire alarm system has been set up, the mechanical pressure feedback device 27 can be eliminated. The smoke / temperature alarm can directly prompt the fire alarm, and the pressure gauge 24 can also feedback the internal pressure condition of the fire extinguishing device for inspection and maintenance.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A miniature direct-mounted magnetic fire extinguishing device, comprising a fire extinguishing device tank (1), characterized in that: Also includes: A nozzle (2) and a magnetic attraction member (3); The nozzle (2) is arranged at the bottom of the fire extinguishing device tank (1), and the nozzle (2) sprays the fire extinguishing agent stored in the fire extinguishing device tank (1); The magnetic attraction component (3) is arranged on the top of the fire extinguishing device tank body (1), the magnetic attraction component (3) is fixedly connected to the fire extinguishing device tank body (1), and the magnetic attraction component (3) is used to connect the fire extinguishing device tank body (1) and the magnetic metal plate on the top of the electric cabinet / cabinet.

2. According to claim 1, a miniature direct-mounted magnetic fire extinguishing device is characterized in that: The nozzle (2) is provided with a glass bulb (21) for controlling the opening and closing of the nozzle (2); the glass bulb (21) is filled with a liquid temperature-sensing medium, and the glass bulb (21) bursts when the temperature reaches 68° C., thereby opening the nozzle (2).

3. A miniature direct-mounted magnetic fire extinguishing device according to claim 2, characterized in that: The nozzle (2) is provided with an impact driver (22) for striking the glass bulb (21), and the impact driver (22) is activated by thermal initiation or electrical initiation.

4. A miniature direct-mounted magnetic fire extinguishing device according to claim 3, characterized in that: The impact driver (22) is connected to a thermal wire (221), and the design temperature of the thermal wire (221) is 175°C.

5. The miniature direct-mounted magnetic fire extinguishing device according to claim 3 is characterized in that: The impact driver (22) is connected to the temperature / smoke alarm (222) via a fire alarm system.

6. The miniature direct-mounted magnetic fire extinguishing device according to claim 1 is characterized in that: A dispersion disk (23) is provided at the spray hole of the nozzle (2).

7. The miniature direct-mounted magnetic fire extinguishing device according to claim 1 is characterized in that: The nozzle (2) is provided with a pressure gauge (24), and the pressure gauge (24) monitors the pressure inside the fire extinguishing device tank (1).

8. The miniature direct-mounted magnetic fire extinguishing device according to claim 1 is characterized in that: The nozzle (2) is provided with a filling interface (25) for filling fire extinguishing agent and nitrogen, and the filling interface (25) is provided with a charging lock switch (26) for controlling the switch of the filling interface (25).

9. A miniature direct-mounted magnetic fire extinguishing device according to any one of claims 2 to 4, characterized in that: The nozzle (2) is provided with a mechanical pressure feedback device (27), and the mechanical pressure feedback device (27) is connected to the main control room via a wired signal.

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