Premixing type superfine water mist fire extinguishing device

Abstract

The utility model discloses a premixing type superfine water mist fire extinguishing device which comprises a nitrogen gas cylinder, a water tank is arranged on the right side of the nitrogen gas cylinder, the top end of the water tank is communicated with an additive tank, the side face of the water tank is communicated with a water outlet, the side end of the water outlet is communicated with a hose reel, and the water outlet end of the hose reel is communicated with a handheld spray gun. The premixing type structural design is adopted, the additive box is arranged, the fire extinguishing effect is greatly improved compared with a pure water solution, the additive box is separated from the water solution, whether the additive box and the water solution are premixed or not can be selected according to fire behavior requirements, stirring is carried out on the basis if the additive box and the water solution are needed, and the phenomenon that the additive is not evenly distributed, precipitates and abrasion to equipment are caused is avoided; therefore, the additive and the superfine water mist have a synergistic effect, the superfine water mist containing the additive is carried by high-speed inert gas to achieve synergistic fire extinguishing, the fire extinguishing efficiency is further improved, the structure is compact and practical, operation is convenient, the load is light, the maintenance cost is low, and the superiority of the fire extinguishing technology is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing, in particular to a premixed ultra-fine water mist fire extinguishing device. Background Art

[0002] Water mist fire extinguishing technology is regarded as the main substitute for halogenated fire extinguishing agents. With its high efficiency and pollution-free characteristics, water mist fire extinguishing technology is widely used in fire protection fields such as library fire safety, transportation hub station fire safety, ship fire safety and spacecraft fire safety. With the development of science and technology and the needs of fire protection, more and more scholars are conducting research on the effectiveness of water mist containing additives in suppressing fires. The results show that additives can change the physical and chemical properties of water mist, further exert the synergistic effect of the two, and improve the efficiency of fire extinguishing and the effect of preventing re-ignition.

[0003] However, the traditional water mist fire extinguishing device does not adopt a premixing structure, which can easily cause uneven distribution of the fire extinguishing agent, sediment blocking the water mist nozzle, causing equipment wear, and it uses a gasoline engine as a power source, which consumes a lot of water and is heavy, and there are problems with fuel safety and economy. It is inconvenient for firefighters to operate and move when performing on-site firefighting, which greatly reduces the fire extinguishing efficiency. Utility Model Content

[0004] Therefore, the purpose of the utility model is to provide a premixed ultra-fine water mist fire extinguishing device, which adopts a premixed structural design and is equipped with an additive box. The fire extinguishing effect is greatly improved compared with pure water solution, and the device is placed separately from the water solution. According to the fire situation, it can be selected whether to premix the two. If necessary, they are stirred on this basis to prevent uneven distribution of additives from causing precipitation and wear on the equipment, thereby achieving synergistic effects between additives and ultra-fine water mist, and achieving synergistic fire extinguishing by high-speed inert gas carrying ultra-fine water mist containing additives, further improving fire extinguishing efficiency, having a compact and practical structure, convenient operation, light weight, and low maintenance cost, thereby improving the superiority of fire extinguishing technology.

[0005] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical solutions: a premixed ultra-fine water mist fire extinguishing device, comprising a nitrogen cylinder, a water tank is arranged on the right side of the nitrogen cylinder, and the top of the water tank is connected to an additive tank, the side of the water tank is connected to a water outlet, the side end of the water outlet is connected to a hose reel, and the water outlet end of the hose reel is connected to a handheld spray gun, an air inlet is provided at the top of the water tank, an ultrasonic liquid level meter is installed at the top of the water tank, a water inlet is provided at the top of the water tank and a safety valve is provided.

[0006] As a preferred solution of the premixed ultra-fine water mist fire extinguishing device described in the utility model, a hand-held spray gun trigger is arranged on the side of the hand-held spray gun, and an ultra-fine water mist nozzle is connected to the top of the hand-held spray gun.

[0007] As a preferred solution of the premixed ultra-fine water mist fire extinguishing device described in the utility model, it further includes an agitator, and the agitator is arranged on the inner bottom surface of the water tank;

[0008] Wherein, the stirrer is driven to rotate by a rotary motor.

[0009] As a preferred solution of the premixed ultra-fine water mist fire extinguishing device described in the utility model, the nitrogen gas cylinder is connected to the air inlet through a pipeline;

[0010] Among them, a pressure reducing valve is installed on the pipeline.

[0011] As a preferred solution of the premixed ultrafine water mist fire extinguishing device described in the utility model, a pressure gauge is provided on the top of the nitrogen cylinder.

[0012] As a preferred solution of the premixed ultra-fine water mist fire extinguishing device described in the utility model, the additive tank and the water tank are connected to each other through a connecting pipe, and a control valve is provided on the connecting pipe;

[0013] Wherein, a warning light is arranged on the side of the water tank.

[0014] As a preferred solution of the premixed ultra-fine water mist fire extinguishing device described in the utility model, an ultra-fine water mist nozzle atomizing core and an ultra-fine water mist nozzle filter are arranged in the ultra-fine water mist nozzle.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] It adopts a premixed structure design and is equipped with an additive box. The fire extinguishing effect is greatly improved compared with pure water solution, and it is placed separately from the water solution. According to the fire situation, you can choose whether to premix the two. If necessary, you can stir them on this basis to prevent uneven distribution of additives from causing precipitation and wear on the equipment. In this way, the synergistic effect of additives and ultrafine water mist is achieved, and the coordinated fire extinguishing of ultrafine water mist containing additives by high-speed inert gas is achieved, which further improves the fire extinguishing efficiency. It has a compact and practical structure, is easy to operate, light in weight, and has low maintenance cost, which improves the superiority of fire extinguishing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a diagram of the internal structure of the ultra-fine water mist nozzle of the utility model.

[0020] In the figure: 1. Nitrogen cylinder; 2. Water tank; 3. Additive tank; 4. Handheld spray gun; 5. Ultrasonic level meter; 6. Pressure reducing valve; 7. Pressure gauge; 8. Safety valve; 9. Water inlet; 10. Control valve; 11. Agitator; 12. Warning light; 13. Ultrafine water mist nozzle; 14. Water outlet; 15. Hose reel; 16. Handheld spray gun trigger; 17. Air inlet; 18. Ultrafine water mist nozzle atomizing core; 19. Ultrafine water mist nozzle filter. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides a premixed ultrafine water mist fire extinguishing device, which adopts a premixed structural design and is provided with an additive box. The fire extinguishing effect is greatly improved compared with a pure water solution, and the additive box is placed separately from the water solution. According to the fire situation, it can be selected whether to premix the two. If necessary, they are stirred on this basis to prevent uneven distribution of the additive from causing precipitation and causing wear to the equipment, thereby achieving synergistic effect of the additive and the ultrafine water mist, and achieving synergistic fire extinguishing by high-speed inert gas carrying the ultrafine water mist containing the additive, further improving the fire extinguishing efficiency, having a compact and practical structure, convenient operation, light load, and low maintenance cost, thereby improving the superiority of the fire extinguishing technology.

[0026] Figure 1 , Figure 2 The figure shows the overall structure of a premixed ultra-fine water mist fire extinguishing device according to the present invention. Figure 1 , Figure 2 , the present embodiment is a premixed ultra-fine water mist fire extinguishing device, comprising a nitrogen cylinder 1, a water tank 2 is arranged on the right side of the nitrogen cylinder 1, and the top of the water tank 2 is connected to an additive tank 3, the side of the water tank 2 is connected to a water outlet 14, the side end of the water outlet 14 is connected to a hose reel 15, and the water outlet end of the hose reel 15 is connected to a handheld spray gun 4, an air inlet 17 is opened at the top of the water tank 2, and an ultrasonic level meter 5 is installed at the top of the water tank 2, and a water inlet 9 and a safety valve 8 are arranged at the top of the water tank 2;

[0027] A handheld spray gun trigger 16 is provided on the side of the handheld spray gun 4, and an ultra-fine water mist nozzle 13 is connected to the top of the handheld spray gun 4;

[0028] It also includes an agitator 11, which is arranged on the inner bottom surface of the water tank 2;

[0029] Wherein, the stirrer 11 is driven to rotate by a rotary motor;

[0030] The nitrogen gas cylinder 1 is connected to the gas inlet 17 through a pipeline;

[0031] Wherein, a pressure reducing valve 6 is installed on the pipeline;

[0032] A pressure gauge 7 is provided at the top of the nitrogen cylinder 1;

[0033] The additive tank 3 and the water tank 2 are connected to each other through a connecting pipe, and a control valve 10 is provided on the connecting pipe;

[0034] Wherein, a warning light 12 is provided on the side of the water tank 2;

[0035] The ultra-fine water mist nozzle 13 is provided with an ultra-fine water mist nozzle atomizing core 18 and an ultra-fine water mist nozzle filter 19;

[0036] During specific use, the additive box 3 is connected to the water tank 2 through a connecting pipe, and a control valve 10 is provided in the pipeline to control the additive to enter the water tank 2 to achieve premixing of the additive and the aqueous solution. The nitrogen cylinder 1 is used as a driving gas source to provide pressure and is connected to the water tank 2 through a connecting pipe. When extinguishing a fire, the high-pressure nitrogen pushes the fire extinguishing agent to be sprayed onto the surface of the burning object. A pressure gauge 7 is provided on the top, and a pressure reducing valve 6 is provided at the air outlet. A water inlet 9, an air inlet 17 and a safety valve 8 are provided on the top of the water tank 2. When the pressure in the water tank 2 is higher than the set value, the warning light 12 lights up, the safety valve 8 automatically opens, and the air is released and the pressure is released. The bottom of the side is connected to the handheld sprayer through a hose reel 15. The gun 4 is connected, and the ultra-fine water mist can be released by pressing the trigger 16 of the hand-held spray gun. The water tank 2 is also provided with a water outlet 14, which is convenient for replacing the aqueous solution. An ultrasonic level meter 5 is provided on the top, which can monitor the water level in real time and add it in time as needed. An agitator 11 is provided inside the water tank 2 to fully mix the additive with the aqueous solution to prevent uneven distribution of the additive and precipitation, which causes equipment wear. The ultra-fine water mist nozzle 13 is located at the front end of the hand-held spray gun 4, and is equipped with an ultra-fine water mist nozzle atomizing core 18 and an ultra-fine water mist nozzle filter 19. There are five nozzles with different apertures, which can be switched according to the fire situation to achieve efficient, environmentally friendly and wider range of fire extinguishing.

[0037] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A premixed ultrafine water mist fire extinguishing device, comprising a nitrogen gas cylinder (1), characterized in that: A water tank (2) is arranged on the right side of the nitrogen cylinder (1), and the top end of the water tank (2) is connected to an additive tank (3), the side of the water tank (2) is connected to a water outlet (14), the side end of the water outlet (14) is connected to a hose reel (15), and the water outlet end of the hose reel (15) is connected to a handheld spray gun (4), the top end of the water tank (2) is provided with an air inlet (17), and the top end of the water tank (2) is installed with an ultrasonic level meter (5), and the top end of the water tank (2) is provided with a water inlet (9) and a safety valve (8).

2. A premixed ultra-fine water mist fire extinguishing device according to claim 1, characterized in that: A handheld spray gun trigger (16) is provided on the side of the handheld spray gun (4), and an ultra-fine water mist nozzle (13) is connected to the top of the handheld spray gun (4).

3. A premixed ultra-fine water mist fire extinguishing device according to claim 2, characterized in that: It also includes a stirrer (11), wherein the stirrer (11) is arranged on the inner bottom surface of the water tank (2); Wherein, the stirrer (11) is driven to rotate by a rotary motor.

4. A premixed ultra-fine water mist fire extinguishing device according to claim 3, characterized in that: The nitrogen gas cylinder (1) is in communication with the gas inlet (17) via a pipeline; A pressure reducing valve (6) is installed on the pipeline.

5. A premixed ultra-fine water mist fire extinguishing device according to claim 4, characterized in that: A pressure gauge (7) is provided at the top of the nitrogen cylinder (1).

6. A premixed ultrafine water mist fire extinguishing device according to claim 5, characterized in that: The additive tank (3) and the water tank (2) are connected to each other via a connecting pipe, and a control valve (10) is provided on the connecting pipe; Wherein, a warning light (12) is arranged on the side of the water tank (2).

7. A premixed ultrafine water mist fire extinguishing device according to claim 6, characterized in that: An ultra-fine water mist nozzle atomizing core (18) and an ultra-fine water mist nozzle filter (19) are arranged in the ultra-fine water mist nozzle (13).

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