High pressure water mist fire extinguishing device
Patent Information
- Application Number
- CN202522732339.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-24
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-24
AI Technical Summary
Traditional fire extinguishing systems are difficult to quickly suppress and continuously contain fires in new energy vehicles, and they also have problems such as water damage, equipment damage, high risk of reignition, and insufficient environmental protection.
A high-pressure fine water mist fire extinguishing device was designed. It adopts a high-strength metal frame structure and integrates a high-pressure pump group and a storage battery. It can spray fine water mist or foam mixture with a particle size of 15-100μm and extinguish fires through direct current, spray pattern or multi-nozzle form. It is suitable for confined spaces and toxic and harmful environments.
It achieves efficient fire extinguishing, environmental protection and safety, is suitable for multiple scenarios, is easy to operate, has low maintenance costs, and is suitable for fire fighting in confined spaces, toxic and harmful environments, and various industrial, transportation and civil scenarios.
Smart Images

Figure CN224925527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection technology, and in particular to a high-pressure fine water mist fire extinguishing device. Background Technology
[0002] With the rapid development of new energy vehicles, power facilities, public transportation, and special industrial sites, fire risks are becoming increasingly complex, placing higher demands on fire extinguishing technologies. Traditional fire extinguishing systems, such as water sprinklers, gas extinguishing systems, and foam extinguishing systems, have many limitations in practical applications. For example, water sprinkler systems use a large amount of water, easily causing water damage and equipment damage; gas extinguishing systems have high requirements for sealing, weak sustainable fire extinguishing capabilities, and the risk of reignition, and some gases produce harmful decomposition products at high temperatures; ordinary foam extinguishing systems suffer from uneven mixing, poor coverage, and insufficient environmental friendliness. Especially in fires involving new energy vehicles, battery thermal runaway is characterized by intense combustion, a high risk of reignition, and the release of toxic gases, making it difficult for conventional fire extinguishing methods to quickly suppress and sustainably contain the fire.
[0003] Therefore, it is necessary to provide a new high-pressure fine water mist fire extinguishing device to solve the above-mentioned technical problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a fire extinguishing device that is highly efficient, environmentally friendly and safe, highly applicable, mobile and flexible, and capable of dealing with complex fire situations.
[0005] This utility model provides a high-pressure fine water mist fire extinguishing device, including a base frame, a water tank fixedly installed on the top of the base frame, a box body installed on one side of the water tank, a high-pressure pump set installed inside the box body, a reel installed on one side of the high-pressure pump set, a high-pressure hose installed on the reel, and a DC spray dual-function gun or foam gun connected to one end of the high-pressure hose.
[0006] Preferably, a water inlet pipe is connected to the top of the water tank, and a water inlet connector is fixedly installed on the base frame. The end of the water inlet pipe away from the water tank is connected to the water inlet connector.
[0007] Preferably, the water tank contains fire extinguishing liquid, which is water or foam.
[0008] Preferably, the high-pressure pump set is a plunger pump, the inlet of the high-pressure pump set is connected to the water tank, and the outlet of the high-pressure pump set is connected to the high-pressure hose.
[0009] Preferably, a storage battery is installed inside the enclosure, and a switch and a charging port are provided on the outer side of the enclosure. The storage battery is electrically connected to the high-voltage pump set, the switch, and the charging port, respectively.
[0010] Compared with related technologies, the high-pressure fine water mist fire extinguishing device provided by this utility model has the following beneficial effects:
[0011] This utility model provides a high-pressure fine water mist fire extinguishing device with a compact structure and flexible mobility. It is suitable for fire fighting in confined spaces, toxic and harmful environments, water-sensitive locations, and various industrial, transportation, and civil scenarios. It has the advantages of high fire extinguishing efficiency, environmental safety, simple operation, and low maintenance cost. Attached Figure Description
[0012] Figure 1 A three-dimensional structural diagram of the high-pressure fine water mist fire extinguishing device provided by this utility model.
[0013] The following are labeled in the diagram: 1. Base frame; 2. Water tank; 3. Box body; 4. High-pressure pump set; 5. Reel; 6. High-pressure hose; 7. DC spray gun; 8. Foam gun; 9. Water inlet pipe; 10. Water inlet connector; 11. Switch; 12. Charging port. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] In the specific implementation process, such as Figure 1 As shown, a high-pressure fine water mist fire extinguishing device includes a base frame 1, a water tank 2, a housing 3, a high-pressure pump set 4, a hose reel 5, a high-pressure hose 6, a DC spray dual-function gun 7, a foam gun 8, a water inlet pipe 9, a water inlet connector 10, a switch 11, and a charging port 12.
[0016] The base frame 1 adopts a high-strength metal frame structure with anti-corrosion treatment on the surface. It is lightweight and sturdy, making it easy to move and fix. A water tank 2 is fixedly installed on the top of the base frame 1 with bolts. The water tank 2 has a capacity of 1000L and can be expanded by an additional 100L to hold water or new energy-specific foam fire extinguishing liquid.
[0017] A housing 3 is fixedly installed on one side of the water tank 2. The housing 3 integrates a high-pressure pump set 4, a battery, and related electrical control components. The high-pressure pump set 4 is a plunger pump with a rated power of 3.6kW, a rated speed of 1500r / min, a maximum working pressure of not less than 15MPa, and a head of ≥1500m. The inlet of the pump set is connected to the bottom of the water tank 2 through a pipe, and the outlet is connected to the inlet of the reel 5 through a high-pressure pipeline.
[0018] The reel 5 is installed on one side of the housing 3, and the high-pressure hose 6 can be manually or automatically wound and unwound. The high-pressure hose 6 is made of multi-layer braided reinforced rubber hose with a pressure resistance rating of ≥20MPa and a maximum liquid supply distance of over 1000m. The end of the hose can be quickly connected to a DC diffuser gun 7 or a foam gun 8.
[0019] The DC spray gun 7 has two spray modes: DC and spray pattern. The DC range is ≥15m, and the spray pattern range is ≥10m. The spray angle can reach 180° horizontally (90° to the left and right) and -90° to +90° vertically. The spray mode can be flexibly adjusted according to the fire situation. The foam gun 8 is used to spray special foam mixture for new energy, with a foaming ratio of ≥15, which can achieve foam coverage fire extinguishing.
[0020] The top of the water tank 2 is equipped with a water inlet pipe 9, which is connected to an external water source through a quick connector. A water inlet connector 10 is fixedly installed on the base frame 1. The water inlet pipe 9 is connected to the water inlet connector 10 for easy water replenishment.
[0021] The enclosure 3 is equipped with a ternary lithium battery pack as a storage battery with a rated voltage of 48V and a rated capacity that supports a maximum continuous working time of ≥4 hours. The outer side of the enclosure 3 is equipped with a switch 11 and a charging port 12. The switch 11 controls the start and stop of the whole machine, and the start response time is ≤3 seconds. The charging port 12 is used to connect an external power source to charge the storage battery. The storage battery is electrically connected to the high-voltage pump group 4, the switch 11 and the charging port 12 through a waterproof cable. The overall electrical system meets the requirements for explosion-proof and waterproof.
[0022] Work process:
[0023] When a fire occurs, the operator pushes the device to the vicinity of the fire scene and selects to connect either the DC spray dual-function gun 7 or the foam gun 8 according to the type of fire. The switch 11 is turned on, and the battery powers the high-pressure pump group 4. The high-pressure pump group 4 starts, pressurizes the extinguishing liquid (water or foam) in the water tank 2, and delivers it to the spray gun through the high-pressure hose 6. The extinguishing liquid is atomized into fine water mist or foam mixture with a particle size of 15-100μm through the special nozzle of the gun head, and sprayed to the fire source in the form of DC, spray, or multi-nozzle.
[0024] Fine water mist works synergistically through multiple mechanisms, including efficient heat absorption, rapid suffocation, radiation blocking, adsorption of harmful gases, and balanced cooling, to achieve rapid cooling, inhibit combustion, prevent reignition, and purify the environment. For specific fires involving new energy vehicles, special foam liquid for new energy vehicles can be selected. A stable foam layer is formed through premixing and natural siphon aeration to cover the burning surface and achieve suffocation cooling.
[0025] This device has a compact structure and is highly mobile. It is suitable for fire fighting in confined spaces, toxic and hazardous environments, water-sensitive locations, and various industrial, transportation, and civil scenarios. It has the advantages of high fire extinguishing efficiency, environmental safety, easy operation, and low maintenance costs.
[0026] All standard parts used in this utility model can be purchased from the market. Each component in this utility model can be customized according to the description and drawings. The specific connection methods of each component adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this application document will not explain the control method and circuit connection in detail, and will not be described in detail here.
[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-pressure fine water mist fire extinguishing device, characterized in that, Includes a base frame (1), a water tank (2) is fixedly installed on the top of the base frame (1), a box body (3) is installed on one side of the water tank (2), a high-pressure pump group (4) is installed inside the box body (3), a reel (5) is installed on one side of the high-pressure pump group (4), a high-pressure hose (6) is installed on the reel (5), and one end of the high-pressure hose (6) is connected to a DC spray dual-function gun (7) or a foam gun (8).
2. The high-pressure fine water mist fire extinguishing device according to claim 1, characterized in that: The top of the water tank (2) is connected to a water inlet pipe (9), and a water inlet connector (10) is fixedly installed on the base frame (1). The end of the water inlet pipe (9) away from the water tank (2) is connected to the water inlet connector (10).
3. The high-pressure fine water mist fire extinguishing device according to claim 1, characterized in that: The water tank (2) contains fire extinguishing liquid, which is water or foam.
4. The high-pressure fine water mist fire extinguishing device according to claim 1, characterized in that: The high-pressure pump set (4) is a plunger pump. The inlet of the high-pressure pump set (4) is connected to the water tank (2), and the outlet of the high-pressure pump set (4) is connected to the high-pressure hose (6).
5. A high-pressure fine water mist fire extinguishing device according to claim 1, characterized in that: The housing (3) is equipped with a storage battery. The outer side of the housing (3) is equipped with a switch (11) and a charging port (12). The storage battery is electrically connected to the high-voltage pump group (4), the switch (11) and the charging port (12) respectively.
