Combined spray head

Abstract

The utility model relates to the technical field of spray heads, and particularly discloses a combined spray head which comprises a water-gas combined spray head, a buffer cavity and a spray head, a fire extinguishing agent inlet is formed in one side of the water-gas combined spray head, a nitrogen inlet is formed in the other opposite side, and a water-gas mixing cavity communicated with the fire extinguishing agent inlet and the nitrogen inlet is formed in the water-gas combined spray head; the buffering cavity is connected with the spraying end of the water-gas combined sprayer, and the spraying head is connected with the tail end of the buffering cavity. According to the utility model, the fire extinguishing efficiency and the coverage range are obviously improved by accurately controlling the mixing ratio and the spraying mode of the fire extinguishing agent and the nitrogen. Meanwhile, due to the detachable design, the spray head is easy to maintain and can be flexibly adjusted according to the specific fire situation, and high practicability and adaptability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, specifically to a combined nozzle for high-efficiency fire extinguishing. Background Technology

[0002] In the field of fire protection technology, the efficiency and effectiveness of fire extinguishing equipment directly affect the success or failure of fire suppression. Traditional fire sprinklers often rely on a single extinguishing agent, such as water or foam, for spraying. This method of fire extinguishing may have limitations when facing certain types of fires. For example, for fires involving oil, electrical equipment, or flammable liquids, a single extinguishing agent may not be able to quickly and effectively cut off the fire source, or it may even exacerbate the fire due to improper use of the extinguishing agent.

[0003] To overcome these limitations, the industry has begun exploring fire extinguishing technologies that combine water with gases (such as nitrogen). This technology mixes water and gas to create a water-gas mixture with higher extinguishing efficiency and a wider range of applications. However, existing water-gas combination nozzles still have some shortcomings in design and function.

[0004] Specifically, existing water-air combination nozzles often have complex structures, making it difficult to achieve effective mixing of the extinguishing agent and the gas. Furthermore, the mixed water-air mixture may become unstable during spraying due to changes in pressure, flow rate, and other factors, affecting the extinguishing effect. In addition, the nozzle's spray effect and spray distance may also be limited by improper design.

[0005] Therefore, it is particularly important to develop a combined nozzle that can combine water and nitrogen to achieve a wider and faster fire extinguishing effect. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a combined nozzle that optimizes the mixing ratio and spraying method of the extinguishing agent and nitrogen to achieve a more efficient and wider fire extinguishing effect.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a combined nozzle, including a water-air combined nozzle, a buffer chamber, and a spray head;

[0008] The water-gas combined nozzle has an extinguishing agent inlet on one side and a nitrogen inlet on the opposite side. The water-gas combined nozzle has a water-gas mixing chamber that connects the extinguishing agent inlet and the nitrogen inlet.

[0009] The buffer chamber is connected to the spray end of the water-air combination nozzle, and the spray head is connected to the end of the buffer chamber.

[0010] Furthermore, the water-air combination nozzle is provided with an extinguishing agent channel inside, which connects the extinguishing agent inlet and the water-air mixing chamber.

[0011] Furthermore, the water-air combination nozzle is provided with a nitrogen channel inside, which is located between the water-air combination nozzle and the extinguishing agent channel and has a diameter smaller than that of the extinguishing agent channel; the nitrogen channel connects the extinguishing agent inlet and the water-air mixing chamber.

[0012] Furthermore, the fire extinguishing agent channel is provided with a fire extinguishing agent outlet at its end, and the size of the fire extinguishing agent outlet is smaller than that of the fire extinguishing agent channel.

[0013] Furthermore, the water-air combination nozzle is provided with a water-air mixing outlet at its end, which is located at the end of the water-air mixing chamber and extends into the buffer chamber.

[0014] Furthermore, the spray head is fitted over the end of the buffer chamber and is detachably connected to it.

[0015] Furthermore, the end of the spray head is provided with a fire extinguishing pipe that can be detachably connected to it.

[0016] The advantages of this invention compared to existing technologies are as follows: By precisely controlling the mixing ratio of extinguishing agent and nitrogen and the spraying method, this invention significantly improves fire extinguishing efficiency and coverage. Furthermore, the detachable design makes the nozzle easy to maintain and allows for flexible adjustments based on specific fire conditions, demonstrating strong practicality and adaptability. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of a combined nozzle according to this utility model.

[0018] As shown in the figure: 1. Water-air combination nozzle, 2. Buffer chamber, 3. Spray head, 4. Extinguishing agent inlet, 5. Nitrogen inlet, 6. Water-air mixing chamber, 7. Extinguishing agent channel, 8. Nitrogen channel, 9. Water-air mixing outlet, 10. Extinguishing pipeline. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The following is a detailed description of a combined nozzle according to the present invention, with reference to the accompanying drawings.

[0022] Combined with appendix Figure 1 The specific implementation process of this utility model's combined nozzle is as follows:

[0023] A combined nozzle comprises three main parts: a water-air combined nozzle 1, a buffer chamber 2, and a spray head 3. The water-air combined nozzle 1 has an extinguishing agent inlet 4 on one side for receiving liquid extinguishing agents (such as water-based extinguishing agents), and a nitrogen inlet 5 on the opposite side for introducing high-pressure nitrogen. The water-air combined nozzle 1 has an internal water-air mixing chamber 6, which allows the extinguishing agent and nitrogen to mix thoroughly.

[0024] The buffer chamber 2 is connected to the outlet end of the water-air combined nozzle 1, which serves to slow down the velocity of the mixed fluid and stabilize the spray pressure. The spray head 3 is connected to the end of the buffer chamber 2, which is responsible for refining the mixed fluid into a mist to expand the fire extinguishing area and enhance the fire extinguishing effect.

[0025] The water-air combination nozzle 1 has an extinguishing agent channel 7 and a nitrogen channel 8 inside. The extinguishing agent channel 7 connects the extinguishing agent inlet 4 to the water-air mixing chamber 6, ensuring that the extinguishing agent enters the mixing chamber smoothly. The nitrogen channel 8 is located between the extinguishing agent channels 7 and has a smaller diameter. It is designed to limit the nitrogen flow rate to achieve the optimal mixing ratio with the extinguishing agent. The nitrogen channel 8 is also connected to the water-air mixing chamber 6.

[0026] The extinguishing agent channel 7 has an extinguishing agent outlet at the end that is smaller than the channel itself. This design helps to increase the pressure of the extinguishing agent and promote its full mixing with nitrogen.

[0027] The water-air combination nozzle 1 is provided with a water-air mixing outlet 9 at its end. This outlet extends into the buffer chamber 2 to ensure that the mixed fluid can smoothly enter the buffer chamber 2 and avoid direct impact on the spray head 3, which could cause damage.

[0028] The end of the buffer chamber 2 is detachably connected to the spray head 3, which facilitates maintenance and replacement of the spray head 3 and adapts to the needs of different fire extinguishing scenarios.

[0029] The spray head 3 is designed with a detachable fire extinguishing pipe 10 at its end, which can extend the spray distance or connect other auxiliary equipment, such as a fan, to further enhance the fire extinguishing effect as needed.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A combined nozzle, characterized in that: It includes a water-air combination nozzle (1), a buffer chamber (2), and a spray head (3); The water-gas combined nozzle (1) has an extinguishing agent inlet (4) on one side and a nitrogen inlet (5) on the opposite side. The water-gas combined nozzle (1) has a water-gas mixing chamber (6) inside that connects the fire extinguisher inlet and the nitrogen inlet (5). The buffer chamber (2) is connected to the spray end of the water-air combination nozzle (1), and the spray head (3) is connected to the end of the buffer chamber (2).

2. A combined nozzle according to claim 1, characterized in that: The water-air combination nozzle (1) is provided with an extinguishing agent channel (7) inside, which connects the extinguishing agent inlet (4) and the water-air mixing chamber (6).

3. A combined nozzle according to claim 2, characterized in that: The water-air combination nozzle (1) is provided with a nitrogen channel (8), which is located between the water-air combination nozzle (1) and the extinguishing agent channel (7) and has a smaller diameter than the extinguishing agent channel (7); the nitrogen channel (8) connects the extinguishing agent inlet (4) and the water-air mixing chamber (6).

4. A combined nozzle according to claim 3, characterized in that: The fire extinguishing agent channel (7) is provided with a fire extinguishing agent outlet at its end, and the size of the fire extinguishing agent outlet is smaller than that of the fire extinguishing agent channel (7).

5. A combined nozzle according to claim 4, characterized in that: The water-air combination nozzle (1) is provided with a water-air mixing outlet at its end. The water-air mixing outlet is located at the end of the water-air mixing chamber (6) and extends into the buffer chamber (2).

6. A combined nozzle according to claim 1, characterized in that: The spray head (3) is fitted onto the end of the buffer chamber (2) and is detachably connected to it.

7. A combined nozzle according to claim 1, characterized in that: The spray head (3) is provided with a fire extinguishing pipe (10) that can be detachably connected to it.

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