High-pressure fire extinguishing sprayer

By designing high-pressure fire extinguishing nozzles and utilizing the Laval principle and pressurization components, the problems of small water output, slow flow rate, and small coverage area of ​​traditional nozzles have been solved, achieving a longer and wider spraying range and higher fire extinguishing efficiency, making them suitable for complex environments.

CN223641211UActive Publication Date: 2025-12-09CHENGDU AERONAUTIC POLYTECHNIC
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Patent Information

Application Number
CN202423049426.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-12-09
Estimated Expiration
2034-12-11

AI Technical Summary

Technical Problem

Traditional sprinklers have insufficient water output, low flow rate, small coverage area, and limited spray distance, making them ineffective in covering large fire scenes. They are also complex to install and require a lot of manpower and resources, and are particularly ineffective in high spaces or complex terrain.

Method used

Design a high-pressure fire extinguishing nozzle that employs a water outlet component and a pressurization component. Utilize the Laval principle and the pressurization component to increase water flow rate and coverage area. Through the structural design of a thin tube and an enlarged nozzle, combined with a motor driver and compressor to generate high pressure, the spraying effect is enhanced.

Benefits of technology

It significantly improves the spraying range and fire extinguishing efficiency, enhances the spraying effect under insufficient water pressure, is suitable for complex environments, and reduces installation complexity and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The high-pressure fire extinguishing spray head comprises a water outlet assembly, the water outlet assembly comprises a water pipe connector, one end of the water pipe connector is fixedly connected with a water pipe, the end, away from the water pipe connector, of the water pipe is fixedly connected with an arc-shaped closing opening, and the end, away from the water pipe, of the arc-shaped closing opening is fixedly connected with a thin pipe. The end, away from the arc-shaped closing opening, of the thin pipe is fixedly connected with an amplification spray head, and the end, away from the thin pipe, of the amplification spray head is provided with a wide opening. By means of the water outlet assembly and the Laval principle, when a certain pressure difference is achieved, water flow passes through the pipeline, the flow speed of sprayed water is increased, the coverage area is larger than that of a traditional spraying type fire extinguishing spray head, and the spraying effect of the spraying type fire extinguishing spray head is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of fire sprinkler technology, specifically to a high-pressure fire extinguishing sprinkler. Background Technology

[0002] Traditional sprinkler fire extinguishing systems have limitations in spray distance, limiting their use to a relatively short range. Unstable water flow within the pipes causes inconsistent spray force, significantly restricting their fire extinguishing effectiveness. This limited spray distance means that in large fires or when the fire source is far from the sprinkler, it may not be able to directly cover the fire. To effectively control a fire using traditional sprinklers, multiple sprinklers and multiple water pipes are required, leading to a large workload and complex installation. This not only consumes significant manpower and financial resources but also exacerbates the limited spray distance of traditional fire sprinklers in certain special environments (such as high spaces or complex terrain).

[0003] In these environments, sprinklers may not be able to cover all areas that need protection, resulting in poor fire extinguishing effect or failure to extinguish the fire. In recent years, household fire accidents have occurred frequently, posing a serious threat to people's lives and property. Moreover, such sprinklers have too small a water output, low flow rate, and small coverage area, and can only provide initial control of the fire, making them difficult to use in homes. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure fire extinguishing nozzle to solve the problems of insufficient water output, low flow rate, and small coverage area of ​​existing nozzles.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A high-pressure fire extinguishing nozzle includes a water outlet assembly, which includes a water pipe connector. One end of the water pipe connector is fixedly connected to a water pipe, and the end of the water pipe away from the water pipe connector is fixedly connected to an arc-shaped constriction. The end of the arc-shaped constriction away from the water pipe is fixedly connected to a thin tube, and the end of the thin tube away from the arc-shaped constriction is fixedly connected to an enlarging nozzle. The end of the enlarging nozzle away from the thin tube is wide-mouthed, and a water distribution plate is provided inside the enlarging nozzle.

[0007] Preferably, one end of the water distribution plate is fixedly connected to the wide-mouth end of the enlarged nozzle, and the water distribution plate and the inner side of the enlarged nozzle are directly provided with water outlets.

[0008] Preferably, the diameter of the thin tube is the same as that of the adjacent end of the water-dividing plate, and the diameter of the thin tube is smaller than the diameter of the other end of the water-dividing plate.

[0009] Preferably, the inner diameter of the thin tube is smaller than the inner diameter of the water pipe, and the inner diameter of the water pipe is smaller than the inner diameter of the wide end of the water divider.

[0010] Preferably, a pressurization component is installed on the outside of the water pipe.

[0011] Preferably, the pressurization component includes a protective nest, which is fixedly connected to the outside of the water pipe. Several batteries are fixedly connected to one side of the inside of the protective nest. Several motor drivers are provided on one side of the batteries. Each motor driver has a compressor on the side away from the battery. Each compressor output end is fixedly connected to an air inlet.

[0012] Preferably, the other end of each air inlet is inserted through a protective nest and located inside the water pipe.

[0013] Preferably, the water pipe connector has an internal thread on the inside.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model modifies the pipe structure by designing a water outlet component, altering the internal structure of the water pipe, arc-shaped constriction, thin tube, and enlarged nozzle. Utilizing the Laval principle, a pipe that gradually narrows and then widens is designed. The internal structure of the fire sprinkler head is used to change the water flow velocity and coverage area, forming a device similar to a Laval nozzle. When a certain pressure difference is reached, the water flow through the pipe increases the spray velocity, and the coverage area is larger than that of traditional sprinkler heads, effectively improving the spraying effect of this utility model. Even when the water pressure is insufficient, it can effectively increase the spraying range, thus improving the practicality of this utility model and increasing the fire extinguishing efficiency during a fire.

[0016] 2. This utility model utilizes a pressurization component located at the water pipe position. A robust and durable protective nest is constructed to safeguard the internal battery, motor driver, compressor, and air inlet. Driven by the motor driver, the compressor compresses air and delivers it to the air inlet. At startup, the instantaneous pressure difference within the pipe initiates startup, causing the compressor to generate sustained high pressure within the pipe. This, in accordance with Laval's principle, increases the flow rate, thereby increasing water pressure, further enhancing water flow velocity, increasing the water coverage area, and improving the spraying effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the overall side structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the water outlet component structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the booster assembly structure of this utility model.

[0021] In the diagram: 1. Water pipe connector; 2. Water pipe; 3. Protective nest; 4. Arc-shaped end; 5. Thin tube; 6. Enlarged nozzle; 7. Internal thread; 8. Water distribution plate; 9. Battery; 10. Motor driver; 11. Compressor; 12. Air inlet. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] like Figures 1-4 As shown, this embodiment provides a high-pressure fire extinguishing nozzle, which includes a water outlet assembly. The water outlet assembly includes a water pipe connector 1. One end of the water pipe connector 1 is fixedly connected to a water pipe 2. The end of the water pipe 2 away from the water pipe connector 1 is fixedly connected to an arc-shaped constriction 4. The end of the arc-shaped constriction 4 away from the water pipe 2 is fixedly connected to a thin tube 5. The end of the thin tube 5 away from the arc-shaped constriction 4 is fixedly connected to an enlarging nozzle 6. The end of the enlarging nozzle 6 away from the thin tube 5 is wide-mouthed. A water distribution plate 8 is provided inside the enlarging nozzle 6.

[0024] In this embodiment, the water in the outlet pipe enters the water pipe 2. When the water flows into the thin pipe 5 through the arc-shaped constriction 4, the water will be squeezed due to the small diameter of the thin pipe 5. This allows the water to pass through the large nozzle 6 at a significantly increased speed, thus spraying further and more powerfully.

[0025] In one embodiment, such as Figure 3 As shown, one end of the water distribution plate 8 is fixedly connected to the wide end of the enlarged nozzle 6, and water outlets are directly provided on the inner side of the water distribution plate 8 and the enlarged nozzle 6.

[0026] In one embodiment, such as Figure 3 As shown, the diameter of the thin tube 5 is the same as that of the adjacent end of the water dividing plate 8, and the diameter of the thin tube 5 is smaller than the diameter of the other end of the water dividing plate 8.

[0027] In one embodiment, such as Figure 3 As shown, the inner diameter of the thin tube 5 is smaller than the inner diameter of the water pipe 2, and the inner diameter of the water pipe 2 is smaller than the inner diameter of the wide end of the water distribution plate 8.

[0028] In one embodiment, such as Figure 1 As shown, a pressurization assembly is installed on the outside of water pipe 2.

[0029] In one embodiment, such as Figure 4As shown, the pressurization component includes a protective nest 3, which is fixedly connected to the outside of the water pipe 2. Several batteries 9 are fixedly connected to one side of the inside of the protective nest 3. Several motor drivers 10 are arranged on one side of the batteries 9. Each motor driver 10 has a compressor 11 on the side away from the batteries 9. Each compressor 11 has an air inlet 12 fixedly connected to its output end. The motor driver 10 will start to provide power to the compressor 11, and increase the pressure inside the water pipe 2 through the air inlet 12, thereby further squeezing the water inside the water pipe 2, making its pressure greater, and spraying a farther distance and a wider range.

[0030] In one embodiment, such as Figure 4 As shown, the other end of each air inlet 12 passes through the protective nest 3 and is located inside the water pipe 2.

[0031] In one embodiment, such as Figure 2 As shown, the water pipe connector 1 has an internal thread 7 on its inner side, and the water pipe connector 1 is threadedly connected to the water outlet pipe through the internal thread 7.

[0032] The high-pressure fire extinguishing nozzle provided in the above embodiment is wherein the water pipe connector 1 is threadedly connected to the water outlet pipe via the internal thread 7. Subsequently, when the nozzle is started, the water in the water outlet pipe enters the water pipe 2. At this time, when the water flows into the thin tube 5 through the arc-shaped constriction 4, the water is squeezed due to the small diameter of the thin tube 5. This significantly increases the speed of the water when it passes through the large nozzle 6, thus allowing it to spray further and more powerfully. At the same time, the motor driver 10 is also started to provide power to the compressor 11, increasing the pressure inside the water pipe 2 through the air inlet 12, thereby further squeezing the water inside the water pipe 2, making its pressure even greater, and spraying further and over a wider range.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-pressure fire extinguishing nozzle, characterized in that, The device includes a water outlet assembly, which includes a water pipe connector (1). One end of the water pipe connector (1) is fixedly connected to a water pipe (2). The end of the water pipe (2) away from the water pipe connector (1) is fixedly connected to an arc-shaped constriction (4). The end of the arc-shaped constriction (4) away from the water pipe (2) is fixedly connected to a thin tube (5). The end of the thin tube (5) away from the arc-shaped constriction (4) is fixedly connected to an enlarged nozzle (6). The end of the enlarged nozzle (6) away from the thin tube (5) is wide-mouthed. A water distribution plate (8) is provided inside the enlarged nozzle (6).

2. The high-pressure fire extinguishing nozzle according to claim 1, characterized in that, One end of the water distribution plate (8) is fixedly connected to the wide end of the enlarged nozzle (6), and the water distribution plate (8) and the inner side of the enlarged nozzle (6) are directly provided with water outlets.

3. The high-pressure fire extinguishing nozzle according to claim 1, characterized in that, The diameter of the thin tube (5) is the same as that of the water-dividing plate (8) at one end, and the diameter of the thin tube (5) is smaller than that of the other end of the water-dividing plate (8).

4. The high-pressure fire extinguishing nozzle according to claim 1, characterized in that, The inner diameter of the thin tube (5) is smaller than the inner diameter of the water pipe (2), and the inner diameter of the water pipe (2) is smaller than the inner diameter of the wide end of the water divider plate (8).

5. The high-pressure fire extinguishing nozzle according to claim 1, characterized in that, A pressurization assembly is provided on the outside of the water pipe (2).

6. The high-pressure fire extinguishing nozzle according to claim 5, characterized in that, The pressurization assembly includes a protective nest (3), which is fixedly connected to the outside of the water pipe (2). A number of batteries (9) are fixedly connected to one side of the inside of the protective nest (3). A number of motor drivers (10) are provided on one side of the battery (9). Each motor driver (10) is provided with a compressor (11) on the side away from the battery (9). Each compressor (11) is fixedly connected to an air inlet (12) at its output end.

7. The high-pressure fire extinguishing nozzle according to claim 6, characterized in that, Each of the air inlets (12) has its other end passing through the protective nest (3) and located inside the water pipe (2).

8. The high-pressure fire extinguishing nozzle according to claim 1, characterized in that, The water pipe connector (1) has an internal thread (7) on its inner side.