Novel automatic gas fire extinguishing device

Abstract

The utility model discloses a novel automatic gas fire extinguishing device which comprises an I-shaped four-way gas passing pipe and L-shaped gas guide pipes which are arranged at four ports of the I-shaped four-way gas passing pipe and are used for expanding a gas spraying range on a horizontal plane, and a plurality of first spray heads which are arranged at equal intervals are arranged at the bottom ends of the L-shaped gas guide pipes; an air inlet control structure is installed at the center position of the bottom end of the I-shaped four-way air passing pipe, and a matrix type air spraying structure is installed at the end, away from the I-shaped four-way air passing pipe, of the L-shaped air guiding pipe. According to the utility model, the design of the I-shaped four-way gas passing pipe is adopted, the L-shaped gas guide pipes are arranged at the four ports, low-oxygen-concentration areas are formed through the matrix type gas spraying structures, each matrix type gas spraying structure can independently generate the low-oxygen-concentration area, and when a fire disaster occurs, fire extinguishing gas can quickly cover a fire source area, so that the fire extinguishing effect is improved. And an effective fire extinguishing environment is formed.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing equipment technology, specifically a novel automatic gas fire extinguishing device. Background Technology

[0002] Automatic gas extinguishing systems are highly efficient, rapid, and environmentally friendly fire suppression systems widely used in water-sensitive locations such as computer rooms, power equipment areas, and cultural relic protection areas. Their main function is to release specific extinguishing gases to rapidly reduce the oxygen concentration in a fire environment or inhibit the fire source through chemical reactions, thereby effectively extinguishing flames. The basic structure of an automatic gas extinguishing system includes extinguishing gas cylinders, extinguishing gas control valves, fire detectors, piping systems, control panels and alarm systems, and gas release devices. The cylinders contain different types of extinguishing gases, such as carbon dioxide, which can be rationally configured according to the volume of the protected area and the characteristics of the extinguishing gases. Fire detectors monitor environmental parameters in real time; once a fire is detected, an alarm is triggered and the extinguishing system is activated. The control panel, as the core of the system, is responsible for receiving detector signals and executing extinguishing commands. The gas is delivered to the protected area through the piping system and evenly released through nozzles.

[0003] As disclosed in authorization announcement number CN217187632U, a novel automatic gas fire extinguishing device includes an instrument box with a top opening on its top surface. An inert gas storage tank is housed inside the instrument box, with its top end movably connected to the top opening. A PLC controller is fixedly installed on one side of the instrument box. A first connecting pipe is located on the top surface of the instrument box. During use, inert gas is injected into the storage tank. A temperature sensor monitors the external temperature. When the monitored temperature reaches the fire extinguishing temperature, the PLC controller controls the opening of a first solenoid valve, allowing the inert fire extinguishing gas to be dispersed and sprayed through nozzles for automatic fire extinguishing. After fire extinguishing, when the temperature decreases, the PLC controller closes the first solenoid valve. At this point, the PLC controller controls a water pump and a second solenoid valve. The valve allows the extracted water to be dispersed and sprayed through the three-way pipe and nozzles for cooling and to prevent reignition. However, in the above technical solution, the main method of spraying air is a straight second connecting pipe and several nozzles at the bottom of the second connecting pipe. The design of the straight second connecting pipe and nozzles results in the spray range usually expanding linearly. This means that the spraying of extinguishing gas is mainly concentrated in the area along the pipeline. Since the gas nozzles are usually in a fixed direction, the gas cannot be evenly distributed throughout the protected area after release, but mainly accumulates around the nozzles. This can lead to the extinguishing gas not being able to cover all corners of the fire source when a fire occurs. For example, when there are multiple fire sources in the protected area or the fire sources are unevenly distributed, the gaseous extinguishing agent may be "concentrated" in a certain area, resulting in other areas not being adequately covered by the extinguishing agent. Utility Model Content

[0004] The purpose of this invention is to provide a novel automatic gas fire extinguishing device. L-shaped air guide pipes are installed at the four ends of an I-shaped four-way air duct to expand the air spray coverage. These L-shaped air guide pipes connect to a matrix-type air spray structure, with each matrix-type air spray structure forming a low-oxygen concentration zone. Adjacent L-shaped air guide pipes along the Y-axis also form low-oxygen concentration zones through several first nozzles, thereby dividing the space into multiple areas and ensuring uniform distribution of the fire extinguishing gas, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel automatic gas fire extinguishing device, comprising an I-shaped four-way gas duct and L-shaped gas guide pipes installed at the four ends of the I-shaped four-way gas duct for expanding the spray range on the horizontal plane, wherein a plurality of equally spaced first nozzles are installed at the bottom end of the L-shaped gas guide pipe, an air intake control structure is installed at the center of the bottom end of the I-shaped four-way gas duct, and a matrix spray structure is installed at the end of the L-shaped gas guide pipe away from the I-shaped four-way gas duct, wherein the matrix spray structure forms an independent low oxygen concentration zone when spraying gas.

[0006] Preferably, the air intake control structure includes an air intake pipe fixed at the center of the bottom end of an I-shaped four-way air intake pipe, and an electromagnetic switch valve is installed at the bottom end of the air intake pipe.

[0007] Preferably, the I-shaped four-way air duct consists of a straight pipe, a T-shaped tee pipe, and four short pipes. The T-shaped tee pipe is installed at both ends of the straight pipe. One end of each short pipe is connected to one port of the T-shaped tee pipe, and the other end of each short pipe is connected to one end of the L-shaped air duct.

[0008] Preferably, the matrix jet structure includes a U-shaped air duct installed at the top of the L-shaped air duct and a four-way connector installed at the bottom of the U-shaped air duct. Both ends of the four-way connector away from the I-shaped four-way air duct are equipped with right-angle bends. Several second nozzles and third nozzles are installed at equal intervals at the bottom of the U-shaped air duct and the bottom of the right-angle bends, respectively.

[0009] Preferably, a number of fourth nozzles are installed in an equally spaced array on the outer wall of the right-angle bend near the I-shaped four-way air duct, and the four-way connector is used to connect two U-shaped air ducts in the Y-axis direction.

[0010] Preferably, the extended line of the central axis of the fourth nozzle intersects the extended line of the central axis of the first nozzle at an acute angle.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This novel automatic gas fire extinguishing device adopts an I-shaped four-way gas pipe design and installs L-shaped gas guide pipes at the four ports. It forms a low oxygen concentration zone through a matrix-type jet structure, in which each matrix-type jet structure can independently generate a low oxygen concentration zone. When a fire occurs, the fire extinguishing gas can quickly cover the fire source area to form an effective fire extinguishing environment. Compared with the traditional straight jet design, this matrix structure can effectively extinguish the fire source in a shorter time, significantly improving the fire extinguishing efficiency.

[0012] The guiding effect of the I-shaped four-way air duct and the L-shaped air duct allows the gas to diffuse in multiple directions, reducing the problem of uneven gas concentration. The uniform gas distribution not only improves the fire extinguishing effect, but also effectively reduces the risk of fire reignition, keeping the oxygen concentration in the entire space at a low level. The fire source does not receive enough oxygen support, thus preventing the flame from reigniting. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0016] Figure 4 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0017] Figure 5 This is a three-dimensional structural diagram of the L-shaped and U-shaped air ducts of this utility model.

[0018] In the diagram: 1. I-shaped four-way air duct; 2. Air inlet pipe; 3. Electromagnetic switch valve; 4. Fourth nozzle; 5. L-shaped air guide pipe; 501. First nozzle; 6. U-shaped air guide pipe; 601. Second nozzle; 7. Four-way connector; 8. Right-angle bend; 801. Third nozzle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figure 1-5An embodiment of this utility model is provided: a novel automatic gas fire extinguishing device, including an I-shaped four-way air duct 1 and L-shaped air guide pipes 5 installed at the four ends of the I-shaped four-way air duct 1 to expand the spray range on the horizontal plane. Several equally spaced first nozzles 501 are installed at the bottom end of the L-shaped air guide pipe 5. An air intake control structure is installed at the center of the bottom end of the I-shaped four-way air duct 1. A matrix spray structure is installed at the end of the L-shaped air guide pipe 5 away from the I-shaped four-way air duct 1. The matrix spray structure forms an independent low oxygen concentration zone when spraying.

[0021] The I-shaped four-way air duct 1 consists of a straight pipe, a T-shaped tee pipe, and four short pipes. The T-shaped tee pipe is installed at both ends of the straight pipe. One end of the short pipe is connected to one end of the T-shaped tee pipe, and the other end of the short pipe is connected to one end of the L-shaped air duct 5.

[0022] The air intake control structure includes an air intake pipe 2 fixed at the center of the bottom end of the I-shaped four-way air intake pipe 1, and an electromagnetic switch valve 3 is installed at the bottom end of the air intake pipe 2. The fire extinguishing gas enters the I-shaped four-way air intake pipe 1 through the electromagnetic switch valve 3 and the air intake pipe 2, and is diverted to each L-shaped air guide pipe 5, and finally sprayed out by the first nozzle 501.

[0023] The electromagnetic switch valve 3 is connected to the carbon dioxide cylinder through a pipeline. When the electromagnetic switch valve 3 receives a command from the upper control device, it is normally open or normally closed to control the gas flow.

[0024] The matrix jet structure includes a U-shaped air duct 6 installed at the top of the L-shaped air duct 5 and a four-way connector 7 installed at the bottom of the U-shaped air duct 6. Right-angle bends 8 are installed at both ends of the four-way connector 7 away from the two ends of the I-shaped four-way air duct 1. Several second nozzles 601 and third nozzles 801 are installed at equal intervals at the bottom of the U-shaped air duct 6 and the bottom of the right-angle bend 8, respectively. Several fourth nozzles 4 are installed at equal intervals on the outer wall of the right-angle bend 8 on the side closer to the I-shaped four-way air duct 1. The four-way connector 7 is used to connect two U-shaped air ducts 6 in the Y-axis direction. The extension line of the central axis of the fourth nozzle 4 intersects the extension line of the central axis of the first nozzle 501 at an acute angle.

[0025] The extinguishing gas in the L-shaped air duct 5 flows sequentially into the U-shaped air duct 6, the four-way connector 7, and the right-angle bend 8, and is sprayed into the area below through the second nozzle 601, the third nozzle 801, and the fourth nozzle 4. The spraying of the extinguishing gas will rapidly reduce the oxygen concentration in the fire source area, causing the fire source to be extinguished due to lack of oxygen.

[0026] By using a zoned management approach, the use of extinguishing gases can be made more efficient. In high-risk areas, the system can increase the number of nozzles to spray more extinguishing gas, while in low-risk areas, the amount of gas sprayed can be reduced.

[0027] In this embodiment, the operator first connects the air intake control structure to an external inert gas supply, such as a carbon dioxide cylinder, via a pipe. When the fire extinguishing device is activated, the air intake control structure automatically adjusts the gas flow and inflow based on instructions from environmental fire sensors and the PLC controller. This ensures that the extinguishing gas enters the I-shaped four-way air duct 1 and the L-shaped air guide pipe 5 according to a predetermined concentration and flow rate. When the air intake control structure is normally open, the gas enters the I-shaped four-way air duct 1 and flows evenly in all directions, eventually reaching the connected L-shaped air guide pipe 5. This effectively avoids uneven gas distribution, ensuring that the extinguishing gas covers the entire area and maximizes the fire extinguishing effect. At this time, the first nozzle 501 will... The extinguishing gas in the gas duct 5 is evenly sprayed onto the fire area, ensuring that the gas can effectively contact the fire source. With the cooperation of multiple arrayed first nozzles 501, the extinguishing gas can cover a large area, thereby quickly suppressing the combustion of the fire source. During this process, a low oxygen concentration zone is formed between two adjacent L-shaped gas ducts 5 in the Y-axis direction, and the extinguishing gas in the L-shaped gas duct 5 also enters the matrix jet structure at the same time. The position of the matrix jet structure also forms a low oxygen concentration zone. The nozzles in the matrix jet structure will spray the extinguishing gas in different directions to ensure that the gas is more evenly distributed in space. Each low oxygen concentration zone will reduce the oxygen concentration to a certain level, thereby quickly suppressing the combustion of the fire source and preventing the fire from spreading until the extinguishing process is completed.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel automatic gaseous fire extinguishing apparatus, characterized by: The utility model provides a four-way air pipe (1) of I -shaped and L-shaped air guide pipe (5) for expanding the jet range in the horizontal plane are installed at four port positions of the four-way air pipe (1) of I -shaped, and the bottom end of the L-shaped air guide pipe (5) is installed with a plurality of equidistant first nozzles (501), the center position of the bottom end of the four-way air pipe (1) of I -shaped is installed with air inlet control structure, and the end of the L-shaped air guide pipe (5) away from the four-way air pipe (1) of I -shaped is installed with matrix jet structure, and the matrix jet structure forms independent low oxygen concentration area when jetting.

2. A novel automatic gas fire extinguishing device according to claim 1, characterized in that: The air inlet control structure includes an air inlet pipe (2) fixed at the center position of the bottom end of the four-way air pipe (1) of I -shaped, and the bottom end of the air inlet pipe (2) is installed with an electromagnetic switch valve (3).

3. A novel automatic gas fire extinguishing device according to claim 1, characterized in that: The four-way air pipe (1) of I -shaped is composed of a straight pipe, a T-shaped tee pipe and four short pipes, the T-shaped tee pipe is installed at both ends of the straight pipe, one end of the short pipe is connected with one port of the T-shaped tee pipe, and the other end of the short pipe is connected with one end of the L-shaped air guide pipe (5).

4. A novel automatic gas fire extinguishing device according to claim 1, characterized in that: The matrix jet structure includes a U-shaped air guide pipe (6) installed at the top end of the L-shaped air guide pipe (5) and a four-way joint (7) installed at the bottom end of the U-shaped air guide pipe (6), the four-way joint (7) is installed with a right-angle elbow pipe (8) away from two ports of the four-way air pipe (1) of I -shaped, and the bottom end of the U-shaped air guide pipe (6) and the bottom end of the right-angle elbow pipe (8) are respectively installed with a plurality of second nozzles (601) and third nozzles (801) in equidistant array.

5. A novel automatic gas fire extinguishing device according to claim 4, characterized in that: The right-angle elbow pipe (8) is installed with a plurality of fourth nozzles (4) in equidistant array on the outer wall of one side close to the four-way air pipe (1) of I -shaped, and the four-way joint (7) is used for connecting two U-shaped air guide pipes (6) in Y-axis direction.

6. A novel automatic gas fire extinguishing device according to claim 5, characterized in that: The central axis extension line of the fourth nozzle (4) intersects with the central axis extension line of the first nozzle (501) and forms an acute angle.

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