Portable high-pressure fire extinguishing apparatus

Abstract

The application relates to a portable high-pressure fire extinguishing device, belonging to the technical field of firefighting, which comprises a bearing system, a water tank system, a gas pressure system, a water pipe device and a spraying system. The water tank system and the gas pressure system are communicated with each other, the spraying system is communicated with the water tank system, the spraying system comprises a spraying gun body, a trigger device, a gas-water mixing device and an accelerating pipe, the spraying gun body is communicated with the end of the water pipe device, the trigger device is installed on the spraying gun body and extends into the spraying gun body to slide, the gas-water mixing device and the accelerating pipe are both installed at the end of the spraying gun body, the gas-water mixing device is located in the accelerating pipe, a plurality of water spraying holes are arranged on the gas-water mixing device, a gas-water mixing plug is arranged on each water spraying hole, a plurality of bubble ejection outlets are arranged on the inner side of the gas-water mixing plug close to the water spraying hole, a separation airflow injection port is arranged on the accelerating pipe, a spiral thread is arranged on one side of the outer side wall of the gas-water mixing device, and an airflow accelerating area is formed between the gas-water mixing device and the inner side wall of the accelerating pipe. The spraying distance is long, and the fire extinguishing effect is good.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, and in particular to a portable high-pressure fire extinguishing device. Background Technology

[0002] The backpack-mounted fine water mist fire extinguishing device is a portable fire-fighting equipment that is carried and operated by a single person and uses a small amount of water to generate micron-level fine water mist for efficient fire extinguishing.

[0003] Its core fire extinguishing principle is cooling, suffocation, and isolation. The device atomizes water into extremely small droplets under high pressure. These micron-sized water droplets greatly increase the contact area with the flames, absorbing a large amount of heat through rapid evaporation to cool the flames; at the same time, the water vapor dilutes the oxygen concentration around the fire source, inhibiting combustion; the fine water mist also blocks heat radiation, preventing reignition.

[0004] This device typically consists of a water tank, a high-pressure gas cylinder, a back support, and a specialized spray gun. Lightweight and highly mobile, it is ideal for extinguishing initial fires involving solids, liquids, gases, and electrical equipment. Therefore, it is widely used in complex locations such as forest fires, underground mines, tunnels, and petrochemical facilities—places where large fire trucks cannot easily access or where rapid response is required.

[0005] Its main advantages are: extremely high water efficiency and rapid fire extinguishing; minimal water damage and low damage to electronic equipment; and environmentally friendly and safe as it uses water and air as the medium.

[0006] However, existing backpack-mounted fine water mist fire extinguishing devices have high water mist resistance when spraying water, which can easily lead to insufficient spray distance when dealing with dangerous fires such as forest fires, thus limiting the effectiveness of fire extinguishing. Summary of the Invention

[0007] To overcome the technical defects of the existing technology, the present invention provides a portable high-pressure fire extinguishing device with a long spray distance and good fire extinguishing effect.

[0008] The technical solution adopted in this invention is:

[0009] A portable high-pressure fire extinguishing device includes a carrying system, a water tank system, a pneumatic system, a water hose assembly, and a spray system. The water tank system and the pneumatic system are both mounted on the carrying system and are interconnected. The spray system is connected to the water tank system via the water hose assembly. The spray system includes a spray nozzle, a triggering device, a water-air mixing device, and an acceleration tube. The spray nozzle is connected to the end of the water hose assembly. The triggering device is mounted on the spray nozzle. The spray nozzle has a hollow structure, and the triggering device slides inside the spray nozzle. The water-air mixing device is mounted at the end of the spray nozzle. An acceleration tube is installed at the end of the spray gun body. The air-water mixing device is located inside the acceleration tube. The air-water mixing device is provided with several water spray holes, and each water spray hole is provided with an air-water mixing plug. The air-water mixing plug is provided with several bubble spray outlets near the inner side of the water spray hole. The bubble spray outlets are connected to the air pressure system. The acceleration tube is provided with an isolation airflow injection port, which is connected to the air pressure system. The outer side wall of the air-water mixing device near the acceleration tube is provided with a spiral pattern. The isolation airflow injection port points to the spiral pattern. An airflow acceleration zone is formed between the air-water mixing device and the inner side wall of the acceleration tube.

[0010] Preferably, the carrying system includes two carrying straps and a carrying support plate, with the two ends of the two carrying straps respectively mounted on the carrying support plate, and the water tank system and the air pressure system both mounted on the carrying system.

[0011] Preferably, the water tank system includes a pressure water tank and a water tank switch, the water tank switch being installed on the pressure water tank and connected to a water pipe device.

[0012] Preferably, the pneumatic system includes an air tank and an air valve, and the air tank is connected to the water tank system through the air valve.

[0013] Preferably, the water pipe device includes a spray hose, a coil frame, and a water pipe control switch. The coil frame is mounted on the backpack system, the two ends of the spray hose are respectively mounted on the spray system and the water tank system, and the water pipe control switch is mounted on the spray hose.

[0014] Preferably, the spray gun body has a grip.

[0015] Preferably, the triggering device includes a trigger plate, a triggering link, and a sealing plate. The trigger plate is rotatably mounted on the spray gun body, the sealing plate is slidably mounted on the spray gun body, and the two ends of the triggering link are respectively hinged to the trigger plate and the sealing plate.

[0016] Preferably, the cross-section of the spiral pattern in the gas-water mixing device is semi-circular, the diameter of the spiral pattern cross-section is 2 mm to 3.5 mm, and the spiral pattern has 6 to 8 lines.

[0017] Preferably, the distance between the accelerating tube and the gas-water mixing device is 1.5 mm to 2.5 mm.

[0018] Preferably, the gas-water mixing plug includes a gas-water mixing ring and a gas flow supply pipe, the gas flow supply pipe is connected to a gas pressure system, the gas flow supply pipe is connected to the gas-water mixing ring, and the bubble outlet is located inside the gas-water mixing ring.

[0019] The beneficial effects of this invention are:

[0020] Both the water tank system and the air pressure system are installed on the carrying system for easy carrying. The water tank system and the air pressure system are interconnected. The air pressure system pressurizes and forces the water in the water tank system out. The spray system is connected to the water tank system through a water pipe device to spray water mist.

[0021] The spray system includes a spray gun body, a triggering device, an air-water mixing device, and an acceleration tube. The spray gun body is connected to the end of the water pipe device. The triggering device is installed on the spray gun body and is used to control the water flow and shut-off, as well as the spray flow rate. The spray gun body has a hollow structure. The triggering device extends into the spray gun body and slides, thereby controlling the diameter of the hollow spray gun body and controlling the water flow. The air-water mixing device is installed at the end of the spray gun body, and the acceleration tube is installed at the end of the spray gun body. The air-water mixing device is located inside the acceleration tube and has several spray holes. Water flowing in from the spray gun body passes through the preset spray holes on the air-water mixing device and is then accelerated and sprayed out from the acceleration tube.

[0022] Each spray nozzle is equipped with an air-water mixing plug. Near the inner side of the spray nozzle, the air-water mixing plug has several bubble outlets. These bubble outlets are connected to a pneumatic system, mixing air with the water. The introduction of bubbles significantly reduces the water flow density from the spray nozzle, facilitating rapid acceleration of the water flow by the pneumatic system and thus promoting water mist formation. An isolation airflow inlet is provided on the acceleration tube, connected to the pneumatic system. A spiral pattern is provided on the outer wall of the air-water mixing device near the acceleration tube, with the isolation airflow inlet pointing towards this spiral pattern. The injected high-pressure airflow forms an airflow acceleration zone between the air-water mixing device and the inner wall of the acceleration tube. Near the inner wall of the acceleration tube, the high-pressure airflow forms a high-speed airflow layer in the airflow acceleration zone, reducing the possibility of water mist adhering to the acceleration tube and thus avoiding speed loss. Guided by the spiral pattern, the airflow forms a spiral airflow inside the acceleration tube, causing the water mist to be ejected in a spiral shape. Due to the effect of the spiral airflow, the water mist is concentrated in the middle of the acceleration tube, preventing the water mist from contacting the acceleration tube, ensuring the ejection speed, and increasing the ejection distance. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a rear view schematic diagram of the injection system.

[0025] Figure 3 for Figure 2 Schematic diagram of cross section along line A-A.

[0026] Figure 4 for Figure 2 Schematic diagram of cross-section along the C-C direction.

[0027] Figure 5 This is a schematic diagram showing the installation relationship between the gas-water mixing device and the gas-water mixing plug.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Carrying system; 11. Carrying straps; 12. Carrying support plate;

[0030] 2. Water tank system; 21. Pressure water tank; 22. Water tank switch;

[0031] 3. Pneumatic system; 31. Air tank; 32. Air valve;

[0032] 4. Water pipe assembly; 41. Spray hose; 43. Coil rack; 44. Water pipe control switch;

[0033] 5. Spray system; 51. Spray gun body; 511. Grip; 52. Triggering device; 521. Trigger plate; 522. Trigger linkage; 523. Sealing plate; 53. Air-water mixing device; 531. Water spray hole; 532. Spiral texture; 54. Acceleration tube; 541. Isolation airflow inlet; 55. Air-water mixing plug; 551. Air-water mixing ring; 5511. Bubble spray outlet; 552. Airflow supply pipe. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] like Figure 1 — Figure 5 As shown, this embodiment provides a portable high-pressure fire extinguishing device, including a carrying system 1, a water tank system 2, an air pressure system 3, a water pipe device 4, and a spraying system 5. The water tank system 2 and the air pressure system 3 are both installed on the carrying system 1 for easy carrying. The water tank system 2 and the air pressure system 3 are interconnected. The air pressure system 3 pressurizes and squeezes out the water in the water tank system 2. The spraying system 5 is connected to the water tank system 2 through the water pipe device 4 to realize the spraying of water mist.

[0036] Specifically, the spray system 5 includes a spray gun body 51, a triggering device 52, an air-water mixing device 53, and an acceleration tube 54. The spray gun body 51 is connected to the end of the water pipe device 4. The triggering device 52 is installed on the spray gun body 51 and is used to control the water flow and the spray flow rate. The spray gun body 51 has a hollow structure. The triggering device 52 extends into the spray gun body 51 and slides, thereby controlling the diameter of the hollow spray gun body 51 and controlling the water flow. The air-water mixing device 53 is installed at the end of the spray gun body 51, and the acceleration tube 54 is installed at the end of the spray gun body 51. The air-water mixing device 53 is located inside the acceleration tube 54. The air-water mixing device 53 has several spray holes 531. The water flowing in from the spray gun body 51 passes through the preset spray holes 531 on the air-water mixing device 53 and is then accelerated and sprayed out from the position of the acceleration tube 54.

[0037] Specifically, each spray hole 531 is equipped with an air-water mixing plug 55. Near the inner side of the spray hole 531, the air-water mixing plug 55 has several bubble outlets 5511. These bubble outlets 5511 are connected to the air pressure system 3, mixing air into the water. The introduction of bubbles significantly reduces the water flow density from the spray hole 531, facilitating rapid acceleration of the water flow by the air pressure system 3 and thus promoting the formation of water mist. The acceleration pipe 54 is equipped with an isolation airflow inlet 541, which is connected to the air pressure system 3. The outer wall of the air-water mixing device 53 near the acceleration pipe 54 has a spiral pattern 532, with the isolation airflow inlet 541 pointing towards the spiral pattern 532. 2. Due to the high-pressure airflow injected into the isolation airflow inlet 541, an airflow acceleration zone is formed between the air-water mixing device 53 and the inner wall of the acceleration tube 54. Near the inner wall of the acceleration tube 54, the high-pressure airflow forms a high-speed airflow layer in the airflow acceleration zone, reducing the possibility of water mist adhering to the acceleration tube 54, thereby avoiding speed loss. Under the guidance of the spiral pattern 532, the high-pressure airflow forms a spiral airflow in the acceleration tube 54, causing the water mist to be ejected in a spiral shape in the acceleration tube 54. Due to the effect of the spiral airflow, the water mist is concentrated in the middle of the acceleration tube 54, preventing the water mist from contacting the acceleration tube 54, ensuring the ejection speed, and increasing the ejection distance.

[0038] Specifically, the carrying system 1 includes two carrying straps 11 and a carrying support plate 12. The two ends of the two carrying straps 11 are respectively installed on the carrying support plate 12. The water tank system 2 and the air pressure system 3 are both installed on the carrying system 1 to realize carrying and facilitate carrying.

[0039] Specifically, the water tank system 2 includes a pressure water tank 21 and a water tank switch 22. The water tank switch 22 is installed on the pressure water tank 21 and is connected to the water pipe device 4. When there is no fire, the water tank switch 22 on the pressure water tank 21 is turned off to prevent air leakage.

[0040] Specifically, the air pressure system 3 includes an air tank 31 and an air valve 32. The air tank 31 is connected to the water tank system 2 through the air valve 32 to provide air pressure and spray power. When there is no fire, the air valve 32 on the air tank 31 is turned off to prevent air leakage.

[0041] Specifically, the water pipe device 4 includes a water spray hose 41, a coil frame 43, and a water pipe control switch 44. The coil frame 43 is installed on the backpack system 1. The two ends of the water spray hose 41 are respectively installed on the spray system 5 and the water tank system 2. The water pipe control switch 44 is installed on the water spray hose 41. By controlling the water pipe control switch 44, the spray distance can be easily changed.

[0042] Specifically, the spray gun body 51 has a grip 511 for easy holding and to prevent slipping from the hand.

[0043] Specifically, the triggering device 52 includes a trigger plate 521, a triggering rod 522, and a sealing plate 523. The trigger plate 521 is rotatably mounted on the spray gun body 51, and the sealing plate 523 is slidably mounted on the spray gun body 51. The two ends of the triggering rod 522 are respectively hinged to the trigger plate 521 and the sealing plate 523. When the trigger plate 521 is held, the triggering rod 522 drives the sealing plate 523 to slide along the spray gun body 51, thereby realizing the control of water flow rate.

[0044] Specifically, the cross-section of the spiral pattern 532 of the air-water mixing device 53 is semi-circular, the diameter of the spiral pattern 532 is 2 mm to 3.5 mm, and there are 6 to 8 spiral patterns 532, which ensures the spiral effect when the air and water mist mixture is sprayed out, reduces the contact between the water mist and the acceleration tube 54, and ensures the speed of water mist spraying out.

[0045] Specifically, the distance between the acceleration tube 54 and the air-water mixing device 53 is 1.5 mm to 2.5 mm to ensure that the airflow is smoothly ejected from the spiral pattern 532.

[0046] Specifically, the air-water mixing plug 55 includes an air-water mixing ring 551 and an air supply pipe 552. The air supply pipe 552 is connected to the air-water mixing ring 551 and the air supply pipe 552 is connected to the air tank 31. The air-water mixing ring 551 is a hollow ring structure. The air-water mixing ring 551 is welded from stainless steel sheets, which is existing technology and will not be described in detail here. The bubble outlet 5511 is located on the inner side of the air-water mixing ring 551 to inject air into the water flow, which facilitates rapid acceleration when the water flow is ejected.

[0047] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A portable high-pressure fire extinguishing device, characterized in that, The system includes a carrying system, a water tank system, an air pressure system, a water pipe assembly, and a spray system. The water tank system and air pressure system are both mounted on the carrying system and are interconnected. The spray system is connected to the water tank system via the water pipe assembly. The spray system includes a spray gun body, a triggering device, an air-water mixing device, and an acceleration tube. The spray gun body is connected to the end of the water pipe assembly. The triggering device is mounted on the spray gun body, which has a hollow structure. The triggering device slides inside the spray gun body. The air-water mixing device is mounted at the end of the spray gun body, and the acceleration tube is mounted on... At the end of the spray gun body, the air-water mixing device is located inside the acceleration tube. The air-water mixing device is provided with several water spray holes, and each water spray hole is provided with an air-water mixing plug. The air-water mixing plug is provided with several bubble spray outlets near the inner side of the water spray hole. The bubble spray outlets are connected to the air pressure system. The acceleration tube is provided with an isolation airflow injection port, which is connected to the air pressure system. The outer side wall of the air-water mixing device near the acceleration tube is provided with a spiral pattern. The isolation airflow injection port points to the spiral pattern. An airflow acceleration zone is formed between the air-water mixing device and the inner side wall of the acceleration tube.

2. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The carrying system includes two carrying straps and a carrying support plate. The two ends of the two carrying straps are respectively installed on the carrying support plate. The water tank system and the air pressure system are both installed on the carrying system.

3. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The water tank system includes a pressure water tank and a water tank switch. The water tank switch is installed on the pressure water tank and is connected to a water pipe device.

4. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The pneumatic system includes a gas tank and a gas valve, and the gas tank is connected to the water tank system through the gas valve.

5. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The water pipe device includes a water spray hose, a coil frame, and a water pipe control switch. The coil frame is installed on the backpack system, and the two ends of the water spray hose are respectively installed on the spray system and the water tank system. The water pipe control switch is installed on the water spray hose.

6. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The spray gun body has a grip.

7. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The triggering device includes a trigger plate, a triggering link, and a sealing plate. The trigger plate is rotatably mounted on the spray gun body, and the sealing plate is slidably mounted on the spray gun body. The two ends of the triggering link are respectively hinged to the trigger plate and the sealing plate.

8. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The cross-section of the spiral pattern in the gas-water mixing device is semi-circular, the diameter of the spiral pattern cross-section is 2 mm to 3.5 mm, and there are 6 to 8 spiral patterns.

9. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The distance between the acceleration tube and the gas-water mixing device is 1.5 mm to 2.5 mm.

10. The portable high-pressure fire extinguishing device according to claim 1, characterized in that, The gas-water mixing plug includes a gas-water mixing ring and a gas flow supply pipe. The gas flow supply pipe is connected to the gas-water mixing ring and to a gas pressure system. The bubble outlet is located inside the gas-water mixing ring.

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