A gas fire extinguishing device

Abstract

The utility model discloses a kind of gas fire extinguishing device, it is related to gas fire extinguishing device field, including starting gas cylinder, gas cylinder group, collecting pipe, multiple nozzles and control system, further include pressure regulating structure, pressure regulating structure is located between collecting pipe and multiple nozzles;Pressure regulating structure includes dynamic adjusting assembly, dynamic adjusting assembly is located between collecting pipe and multiple nozzles, pressure reducing valve is located between multiple nozzles and dynamic adjusting assembly;This kind of gas fire extinguishing device can improve the stability of the flow to nozzle fire-extinguishing gas pressure, reduce the pressure of fire-extinguishing gas spray, avoid gas gathering in local area, so that gas is rapidly, evenly diffused to entire fire-extinguishing space, ensure fire extinguishing effect.

Description

Technical Field

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

[0002] In the field of fire protection, gas extinguishing systems are widely used in important locations such as computer rooms and archives due to their high extinguishing efficiency and minimal damage to equipment. Existing gas extinguishing systems typically consist of a starting gas cylinder, a gas storage cylinder assembly, a manifold, nozzles, and a control system. Their working principle involves the control system sensing a fire and triggering the starting gas cylinder, which in turn opens the gas storage cylinder assembly, allowing the extinguishing gas to be ejected from the nozzles through the manifold, thus achieving the purpose of extinguishing the fire.

[0003] However, due to the high pressure of the extinguishing gas in the gas cylinder group and the lack of an effective pressure regulation structure in the existing device, the pressure of the extinguishing gas is too high when it is sprayed from the nozzle, and the speed of the extinguishing gas sprayed from the nozzle is too fast. This will form a strong jet, causing the gas to accumulate in local areas and making it difficult to spread quickly and evenly to the entire extinguishing space. As a result, the concentration of extinguishing gas in some areas cannot reach the critical value required for extinguishing, delaying the extinguishing opportunity, affecting the overall extinguishing effect, and may damage the protected items. Utility Model Content

[0004] The purpose of this invention is to provide a gas extinguishing device that can improve the stability of the pressure of the extinguishing gas flowing to the nozzle, reduce the pressure of the extinguishing gas ejected, and prevent the gas from accumulating in local areas, thereby enabling the gas to spread quickly and evenly throughout the extinguishing space and ensuring the extinguishing effect.

[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a gas fire extinguishing device, including a starting gas cylinder, a gas storage cylinder group, a manifold, multiple nozzles and a control system, and further including a pressure regulating structure, wherein the pressure regulating structure is disposed between the manifold and the multiple nozzles; The pressure regulating structure includes a dynamic regulating component, which is disposed between the manifold and the plurality of nozzles; A pressure reducing valve is disposed between the plurality of nozzles and the dynamic adjustment assembly.

[0006] In some embodiments, the dynamic adjustment assembly includes an adjustment tube disposed between the pressure reducing valve and the manifold; A first regulating mesh is coaxially disposed on the side of the regulating pipe near the collecting pipe; The second regulating mesh is coaxially disposed on the regulating pipe near the pressure reducing valve; The third regulating mesh is coaxially disposed between the first regulating mesh and the second regulating mesh.

[0007] In some embodiments, the third adjusting mesh is slidably disposed between the first adjusting mesh and the second adjusting mesh; The dynamic adjustment assembly also includes multiple adjustment springs, which are arranged in a ring between the first adjustment net and the third adjustment net, and between the second adjustment net and the third adjustment net.

[0008] In some embodiments, the dynamic adjustment assembly further includes an adjustment cone, which is coaxially disposed on the side of the third adjustment net closer to the first adjustment net.

[0009] In some embodiments, the first regulating net contains silica gel desiccant, the second regulating net contains activated carbon, and the third regulating net contains glass fiber filter cloth.

[0010] In some embodiments, the control system includes a solenoid valve connected to the starting gas cylinder; The controller is electrically connected to the solenoid valve; A fire sensing component, which is electrically connected to the controller.

[0011] In some embodiments, the fire sensing component includes a smoke detector, which is electrically connected to the controller; A temperature sensor, which is electrically connected to the controller.

[0012] In summary, this utility model has the following beneficial effects: (1) By setting a pressure regulating structure, the dynamic regulating component and the pressure reducing valve work together to effectively regulate the pressure of the extinguishing gas sprayed from the nozzle, reduce the pressure of the extinguishing gas sprayed out, and at the same time improve the stability of the pressure of the extinguishing gas flowing to the nozzle, avoid the gas sprayed out from the nozzle too fast, forming a strong jet, causing the gas to accumulate in a local area, so that the gas can quickly and evenly diffuse to the entire extinguishing space, ensuring the extinguishing effect.

[0013] (2) The present invention is provided with silica gel desiccant, activated carbon and glass fiber filter cloth in the first regulating net, the second regulating net and the third regulating net respectively, which can dry and filter the fire extinguishing gas, remove moisture and impurities, thereby improving the purity of the fire extinguishing gas, ensuring the fire extinguishing effect, and at the same time avoiding impurities from clogging the nozzle and extending the service life of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the dynamic adjustment component of this utility model.

[0015] In the diagram: 1. Starting gas cylinder; 2. Gas cylinder group; 3. Manifold; 4. Nozzle; 5. Control system; 51. Solenoid valve; 52. Controller; 53. Smoke detector; 54. Temperature detector; 6. Pressure regulating structure; 61. Pressure reducing valve; 62. Regulating pipe; 63. First regulating network; 64. Second regulating network; 65. Third regulating network; 66. Regulating spring; 67. Regulating cone. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] refer to Figure 1-2 A gas extinguishing device includes a starting gas cylinder 1, a gas storage cylinder group 2, a manifold 3, multiple nozzles 4, a control system 5, and a pressure regulating structure 6. The starting gas cylinder 1 can store nitrogen gas and output nitrogen gas to the gas storage cylinder group 2 to provide power for system startup and extinguishing fire. The gas storage cylinder group 2 may include multiple gas storage cylinders, which may contain a mixed extinguishing gas of nitrogen, argon, and carbon dioxide. Each gas storage cylinder is equipped with a cylinder head valve, which can receive the gas output from the starting gas cylinder 1 and release the mixed extinguishing gas. The manifold 3 is connected to the gas storage cylinder group 2 to combine the gas streams. The mixed extinguishing gas released from multiple gas cylinders is delivered to subsequent pipelines. Multiple nozzles 4 can be set according to the location to be extinguished, and can spray the extinguishing gas in the manifold 3 to the protected area to extinguish the fire. The control system 5 can sense the location of the fire, monitor the fire situation, and control other structures to achieve automatic fire extinguishing. The pressure regulating structure 6 is located between the manifold 3 and the multiple nozzles 4, which can regulate the pressure of the extinguishing gas flowing from the manifold 3 to the multiple nozzles 4, improve its stability, and ensure that the gas is sprayed out of the nozzles 4 at a suitable pressure to ensure the fire extinguishing effect.

[0018] The pressure regulating structure 6 includes a dynamic regulating component and a pressure reducing valve 61. The dynamic regulating component is located between the manifold 3 and multiple nozzles 4, and can dynamically adjust the flow resistance according to the gas pressure to achieve initial pressure regulation. The pressure reducing valve 61 is located between the multiple nozzles 4 and the dynamic regulating component, and can further reduce the pressure of the gas passing through the dynamic regulating component to stabilize the gas pressure at the set value and ensure the spraying effect of the nozzles 4. The pressure reducing valve 61 reduces the gas pressure to the set value. This is existing technology and will not be described in detail here.

[0019] In some embodiments, the dynamic adjustment assembly includes an adjustment pipe 62, a first adjustment mesh 63, a second adjustment mesh 64, and a third adjustment mesh 65. The adjustment pipe 62 is located between the pressure reducing valve 61 and the manifold 3 and can be connected via a flexible hose to provide a channel for gas flow. The first adjustment mesh 63 is coaxially located on the side of the adjustment pipe 62 near the manifold 3 and can perform initial gas diversion and pressure buffering. The second adjustment mesh 64 is coaxially located on the side of the adjustment pipe 62 near the pressure reducing valve 61 and can cooperate with other adjustment meshes to further adjust the gas pressure and flow rate. The third adjustment mesh 65 is coaxially located between the first adjustment mesh 63 and the second adjustment mesh 64. Through the triple interception of the first adjustment mesh 63, the second adjustment mesh 64, and the third adjustment mesh 65, the impact force of the gas can be reduced, thereby reducing the gas pressure and achieving gas pressure regulation, making the gas pressure more stable.

[0020] In some embodiments, the third adjusting net 65 is slidably disposed between the first adjusting net 63 and the second adjusting net 64. By sliding, the distance between the third adjusting net 65 and the first adjusting net 63 and the second adjusting net 64 is changed. The dynamic adjusting component also includes multiple adjusting springs 66, which are arranged in a ring between the first adjusting net 63 and the third adjusting net 65, and between the second adjusting net 64 and the third adjusting net 65. Each of the first adjusting net 63, the second adjusting net 64, and the third adjusting net 65 may be provided with a metal ring. The multiple adjusting springs 66 are arranged in a ring between two adjacent metal rings. The multiple adjusting springs 66 enable the third adjusting net 65 to slide stably between the first adjusting net 63 and the second adjusting net 64. The compression and deformation of the multiple adjusting springs 66 can absorb the impact force of the extinguishing gas, thereby improving the stability of the extinguishing gas flow and realizing dynamic adjustment. When the gas passes through the third regulating mesh 65, the third regulating mesh 65 is moved towards the second regulating mesh 64 by the force, which compresses the regulating spring 66. Part of the impact force of the gas is converted into the elastic potential energy of the regulating spring 66. Depending on the different impact forces of the gas passing through the third regulating mesh 65, the elastic deformation of the regulating spring 66 is different, thereby realizing the dynamic buffer regulation of the gas pressure and stabilizing the gas output pressure.

[0021] In some embodiments, the dynamic adjustment assembly further includes an adjustment cone 67, which is coaxially disposed on the side of the third adjustment net 65 near the first adjustment net 63. The cone-shaped structure of the adjustment cone 67 can guide the gas to diffuse towards the inner wall of the adjustment tube 62, avoid the airflow directly impacting the central area of ​​the third adjustment net 65, reduce turbulence generation, and make the gas pass through the third adjustment net 65 more smoothly, thereby improving the uniformity of pressure regulation.

[0022] In some embodiments, the first regulating net 63 contains silica gel desiccant, which can adsorb moisture in the gas and prevent moisture from condensing into frost and clogging the pipeline when released at low temperatures, thereby affecting the fire extinguishing effect or causing pipeline corrosion. The second regulating net 64 contains activated carbon, which can adsorb trace amounts of harmful residual components in the gas and ensure the cleanliness of the sprayed gas. The third regulating net 65 contains glass fiber filter cloth, which can filter solid impurities (such as metal fragments and dust) mixed in the gas, preventing impurities from entering the nozzle and causing blockage, thus affecting the spraying effect. At the same time, in conjunction with its sliding adjustment function, the pressure regulation effect is not affected while filtering and purifying.

[0023] In some embodiments, the control system 5 includes a solenoid valve 51, a controller 52, and a fire sensing component. The solenoid valve 51 is connected to the starting gas cylinder 1 and can control the opening and closing of the starting gas cylinder 1. The controller 52 is electrically connected to the solenoid valve 51 and can receive fire signals and control the solenoid valve 51 to operate. The fire sensing component is electrically connected to the controller 52 and is used to sense the fire in the protected area and transmit the signal to the controller 52.

[0024] In some embodiments, the fire sensing component includes a smoke detector 53 and a heat detector 54. The smoke detector 53 is electrically connected to the controller 52 and can detect the smoke concentration in the protected area. When the smoke concentration reaches a set threshold, it sends a signal to the controller 52. The heat detector 54 is electrically connected to the controller 52 and can detect the temperature in the protected area. When the temperature reaches a set threshold, it sends a signal to the controller 52. By using both smoke and heat detection, the accuracy of fire assessment is improved and false activation is reduced.

[0025] The specific working principle is as follows: In operation, the controller 52 receives signals from the smoke detector 53 and the heat detector 54 in real time. When a fire occurs in the protected area, if the smoke concentration reaches a set threshold or the temperature rises to a set threshold, the smoke detector 53 or the heat detector 54 will send a trigger signal to the controller 52. The controller 52 analyzes and judges the dual detection signals, confirms the fire, and then initiates the fire extinguishing procedure.

[0026] The controller 52 sends a command to the solenoid valve 51 to open the starting gas cylinder 1. The nitrogen in the starting gas cylinder 1 is released and transported through pipelines to each storage cylinder in the storage cylinder group 2. The nitrogen pressure acts on the cylinder head valve, causing the cylinder head valve to open and releasing the mixed fire extinguishing gas of nitrogen, argon and carbon dioxide stored in the cylinder.

[0027] The mixed fire extinguishing gases released from each gas cylinder are collected into the manifold 3, which gathers the dispersed gas flow into a stable mainstream and delivers it to the pressure regulating structure 6 for pressure processing.

[0028] The mixed gas first enters the regulating pipe 62 of the dynamic regulating assembly. The first regulating mesh 63, located near the manifold 3, initially diverts and buffers the gas pressure, while its internal silica gel desiccant adsorbs moisture from the gas. The gas continues to flow through the sliding third regulating mesh 65, where the regulating cone 67 guides the gas towards the inner wall of the regulating pipe 62, reducing turbulence. When the gas impacts the third regulating mesh 65, it pushes it towards the second regulating mesh 64, compressing the regulating springs 66 on both sides and converting some of the impact force into elastic potential energy. Depending on the gas pressure, the regulating springs deform differently, and by changing the distance between the third regulating mesh 65 and the preceding and following regulating meshes, the flow resistance is dynamically adjusted, achieving initial pressure buffering. The glass fiber filter cloth inside the third regulating mesh 65 simultaneously filters solid impurities from the gas. After dynamic regulation, the gas flows through the second regulating mesh 64, where the activated carbon adsorbs trace amounts of harmful residual components, further stabilizing the airflow. The gas then enters the pressure reducing valve 61, where it is reduced to the set pressure value, ensuring stable output pressure.

[0029] Clean, pressure-regulated, and stable mixed extinguishing gas is delivered through pipelines to multiple nozzles 4. The nozzles 4 evenly spray the gas into the protected area, achieving rapid fire extinguishing by isolating oxygen and reducing temperature.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gas extinguishing device, comprising a starting gas cylinder (1), a gas storage cylinder group (2), a manifold (3), multiple nozzles (4), and a control system (5), characterized in that: It also includes a pressure regulating structure (6), which is disposed between the manifold (3) and the plurality of nozzles (4); The pressure regulating structure (6) includes a dynamic regulating component, which is disposed between the manifold (3) and the plurality of nozzles (4); Pressure reducing valve (61) is disposed between the plurality of nozzles (4) and the dynamic adjustment assembly.

2. The gas fire extinguishing device according to claim 1, characterized in that: The dynamic adjustment assembly includes an adjustment tube (62), which is located between the pressure reducing valve (61) and the manifold (3); The first regulating mesh (63) is coaxially disposed on the regulating pipe (62) near the collector pipe (3); The second regulating mesh (64) is coaxially disposed on the regulating pipe (62) near the pressure reducing valve (61); The third regulating net (65) is coaxially disposed between the first regulating net (63) and the second regulating net (64).

3. A gas fire extinguishing device according to claim 2, characterized in that: The third regulating mesh (65) is slidably disposed between the first regulating mesh (63) and the second regulating mesh (64); The dynamic adjustment assembly also includes multiple adjustment springs (66), which are arranged in a ring between the first adjustment net (63) and the third adjustment net (65), and between the second adjustment net (64) and the third adjustment net (65).

4. A gas fire extinguishing device according to claim 2, characterized in that: The dynamic adjustment assembly also includes an adjustment cone (67), which is coaxially disposed on the side of the third adjustment net (65) near the first adjustment net (63).

5. A gas extinguishing device according to claim 2, characterized in that: The first regulating net (63) contains silica gel desiccant, the second regulating net (64) contains activated carbon, and the third regulating net (65) contains glass fiber filter cloth.

6. A gas fire extinguishing device according to claim 1, characterized in that: The control system (5) includes a solenoid valve (51), which is connected to the starting gas cylinder (1). A controller (52) is electrically connected to the solenoid valve (51); A fire sensing component, which is electrically connected to the controller (52).

7. A gas fire extinguishing device according to claim 6, characterized in that: The fire sensing component includes a smoke detector (53), which is electrically connected to the controller (52); A temperature sensor (54) is electrically connected to the controller (52).

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