Rapid fire extinguishing agent mixing system for helicopter bucket
By installing air and liquid pumps in the helicopter bucket to mix water-based fire extinguishing agents and air to generate bubbles, the problem of limited fire extinguishing performance in existing technologies is solved, achieving rapid fire extinguishing and cost savings.
Patent Information
- Application Number
- CN202520456371.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing helicopter water buckets rely solely on pure water for firefighting, which limits their firefighting performance, makes them prone to reignition, and leads to repeated water collection, wasting flight costs.
An air pump and a liquid pump are installed in the helicopter's bucket, and a gas-liquid mixing device is connected through air and liquid delivery pipes to mix water-based extinguishing agents and air to generate bubbles, thereby improving fire extinguishing efficiency.
It achieves rapid cooling of the water in the bucket and prevents reignition, improves fire extinguishing effectiveness, reduces the number of times water needs to be collected, and saves on flight costs.
Smart Images
Figure CN223944812U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of fire-fighting helicopter bucket, and relates to a quick mixed fire extinguishing agent system for helicopter bucket. BACKGROUND
[0002] Helicopter fire extinguishing is an important fire extinguishing way for forest fire, the helicopter flies fast, and the flight in the air is not limited by road traffic conditions, so that the fire extinguishing can be carried out more timely. The helicopter fire extinguishing by hanging the bucket is the most used and the most recognized effective way in China, and has been widely used for extinguishing large forest fires. The existing helicopter bucket needs to be repeatedly opened and closed at the bottom to complete the water taking and sprinkling action during fire extinguishing, but the fire extinguishing performance is greatly limited by only relying on pure water, the fire extinguishing after extinguishing is easy to relight, repeated water taking and fire extinguishing are caused, and the flight cost is wasted, so it is necessary to add water-based fire extinguishing agent in the helicopter bucket after water taking. UTILITY MODEL CONTENTS
[0003] In view of the above problems, the utility model provides a quick mixed fire extinguishing agent system for helicopter bucket, which solves the problem of adding fire extinguishing agent in the helicopter bucket to improve the fire extinguishing efficiency in the prior art.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a quick mixed fire extinguishing agent system for helicopter bucket, comprising a gas pump, a liquid pump and a liquid storage tank connected with the input end of the liquid pump, which are installed in the helicopter, the output end of the gas pump is connected with a gas pipe, the output end of the liquid pump is connected with a liquid pipe, and the ends of the gas pipe and the liquid pipe away from the helicopter are jointly connected with a gas-liquid mixing device arranged at the bottom of the bucket.
[0005] The gas-liquid mixing device is internally provided with spaces for air and fire extinguishing agent to pass through, and the outer surface of the gas-liquid mixing device is provided with through holes for air and fire extinguishing agent to discharge.
[0006] Further, the gas-liquid mixing device comprises a hollow shell, a first annular pipe and a second annular pipe arranged in the shell, the shell is provided with a gas inlet and a liquid inlet, the gas inlet is connected with the gas pipe, the liquid inlet is connected with the liquid pipe, and the gas inlet and the liquid inlet are respectively communicated with the first annular pipe and the second annular pipe through pipelines; the first annular pipe can discharge air, and the second annular pipe can discharge liquid.
[0007] Further, the through hole is arranged on the outer surface of the shell.
[0008] Further, the side surface of the shell is communicated with a plurality of branch pipes arranged along the circumference of the shell, one end of the branch pipe is communicated with the shell and the other end is closed, a drainage pipe fixedly arranged in the branch pipe is communicated with the second annular pipe, a hole is arranged on the drainage pipe, and the through hole is arranged on the branch pipe and is arranged in multiple in the length direction.
[0009] Further, the end surface of the branch pipe away from the shell is connected with a hanging ring, and a rope connected to the side wall of the bucket is tied on the hanging ring.
[0010] Further, the gas delivery pipe and the liquid delivery pipe are both connected with a one-way electromagnetic valve.
[0011] The liquid pump is connected with a filter between the liquid pump and the liquid storage tank, and the output port of the liquid pump and the one-way electromagnetic valve are connected with an overflow valve communicated with the liquid storage tank.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1、 the liquid storage tank can store water-based extinguishing agent, after the bucket of the helicopter completes water taking, the liquid pump pumps the water-based extinguishing agent in the liquid storage tank into the gas-liquid mixing device, and the air pump also pumps air into the gas-liquid mixing device, the water-based extinguishing agent and air are discharged through the through hole on the outer surface of the gas-liquid mixing device simultaneously, and air generates bubbles in the bucket when passing through the through hole, so that the water-based extinguishing agent can be mixed into the pure water in the bucket quickly, the water in the bucket has the functions of rapid cooling, air isolation and combustion prevention, and the extinguishing effect is improved.
[0014] 2、 the plurality of branch pipes can increase the number of bubbles, and the water in the bucket and the extinguishing agent can be mixed quickly. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the overall schematic view of the utility model;
[0016] Figure 2 It is the principle diagram of the utility model;
[0017] Figure 3 It is the top view of the gas-liquid mixing device of the utility model;
[0018] Figure 4 It is the internal structure schematic view of the gas-liquid mixing device of the utility model.
[0019] In the diagram: 1. Air pump; 2. Liquid pump; 3. Liquid storage tank; 4. Gas delivery pipe; 5. Liquid delivery pipe; 6. Gas-liquid mixing device; 601. Housing; 602. First annular pipe; 603. Second annular pipe; 604. Gas delivery port; 605. Liquid delivery port; 606. Branch pipe; 607. Drain pipe; 608. Hanging ring; 609. Rope; 7. Through hole; 8. One-way solenoid valve; 9. Filter; 10. Overflow valve. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1-2 As shown, the present invention discloses a rapid mixing extinguishing agent system for helicopter buckets, comprising an air pump 1, a liquid pump 2, and a liquid storage tank 3 installed inside the helicopter. The input end of the liquid pump 2 is connected to the liquid storage tank 3 via a connecting pipe. The output end of the air pump 1 is connected to an air delivery pipe 4, and the output end of the liquid pump 2 is connected to a liquid delivery pipe 5. The ends of the air delivery pipe 4 and the liquid delivery pipe 5 opposite to the helicopter are connected to a gas-liquid mixing device 6 located at the bottom of the bucket. The installation positions of the air pump 1, the liquid pump 2, and the liquid storage tank 3 can be flexibly set according to the specific helicopter model, and can be applied to various types of fire-fighting helicopters such as single-rotor and coaxial twin-rotor helicopters.
[0022] In this embodiment, as Figures 3-4As shown, the gas-liquid mixing device 6 comprises a hollow shell 601, a first annular pipe 602 and a second annular pipe 603 arranged inside the shell 601, a gas inlet 604 and a liquid inlet 605 arranged on the shell 601, the gas inlet 604 is connected with the gas pipe 4, the liquid inlet 605 is connected with the liquid pipe 5, and the specific connection can be achieved by using a suitable external thread joint and an internal thread, the gas inlet 604 and the liquid inlet 605 are respectively communicated with the first annular pipe 602 and the second annular pipe 603 through pipelines; and the first annular pipe 602 and the second annular pipe 603 are both provided with holes, the first annular pipe 602 can discharge gas, and the second annular pipe 603 can discharge liquid; and the through hole 7 can be arranged on the outer surface of the shell 601. After the helicopter bucket takes water, the air pump 1 and the liquid pump 2 can work at the same time, the liquid pump 2 pumps the extinguishing agent in the liquid storage tank 3 into the second annular pipe 603 through the liquid pipe 5, the liquid inlet 605 and the pipeline, and at the same time, the air pump 1 pumps air into the first annular pipe 602 through the gas pipe 4, the gas inlet 604 and the pipeline, so that the extinguishing agent and the air enter the shell 601 and can be discharged into the bucket through the through hole 7, the air passing through the through hole 7 will generate bubbles in the bucket, which can accelerate the mixing of the water-based extinguishing agent into the pure water in the bucket, so that the water in the bucket has the functions of rapid cooling, air isolation and preventing rekindling, and the extinguishing effect is improved;
[0023] Preferably, the side surface of the shell 601 is communicated with a plurality of branch pipes 606 arranged along the circumference of the shell 601, the branch pipes 606 are integrally connected with the shell 601, one end of the branch pipe 606 is communicated with the shell 601 and the other end is closed, and the branch pipe 606 is fixedly provided with a liquid discharge pipe 607 communicated with the second annular pipe 603, the liquid discharge pipe 607 is provided with a hole, and the through hole 7 can be arranged on the branch pipe 606 and has a plurality of length direction arrays; the plurality of branch pipes 606 can increase the number of bubbles, so that the water in the bucket and the extinguishing agent can be quickly mixed and more uniformly mixed.
[0024] Further, the end surface of the branch pipe 606 away from the shell 601 is welded with a hanging ring 608, the hanging ring 608 is tied with a rope 609 connected to the side wall of the bucket, and the other end of the rope 609 can also be tied with the side wall of the bucket; so that the gas-liquid mixing device 6 is limited to the bottom of the bucket, preventing the gas-liquid mixing device 6 from shaking or floating up and down greatly, and improving the reliability of use.
[0025] In this embodiment, the gas pipe 4 and the liquid pipe 5 are both connected with a one-way electromagnetic valve 8, so that the water-based extinguishing agent and the air can only be delivered from the helicopter to the bucket; a filter 9 is connected between the liquid pump 2 and the liquid storage tank 3 to filter the impurities in the liquid storage tank 3, thereby prolonging the service life of the liquid pump 2, an overflow valve 10 communicated with the liquid storage tank 3 is connected between the output port of the liquid pump 2 and the one-way electromagnetic valve 8, thereby improving the safety of the liquid pump 2.
[0026] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A rapid mixing fire extinguishing agent system for a helicopter bucket, characterized by: The utility model provides a kind of liquid-gas mixing device for helicopter, including the air pump (1) installed in the interior of helicopter, liquid pump (2) and the liquid tank (3) being communicated with the input end of liquid pump (2), the output end of the air pump (1) is connected with gas pipe (4), the output end of the liquid pump (2) is connected with liquid pipe (5), the end of gas pipe (4) and liquid pipe (5) away from helicopter is jointly connected with gas-liquid mixing device (6) being arranged in the bottom of bucket; The gas-liquid mixing device (6) is provided with spaces for air and fire extinguishing agent to pass through, respectively, and the outer surface of the gas-liquid mixing device (6) is provided with through holes (7) for discharging air and fire extinguishing agent. The gas-liquid mixing device (6) includes a hollow shell (601), a first annular pipe (602) and a second annular pipe (603) arranged inside the shell (601), the shell (601) is provided with a gas inlet (604) and a liquid inlet (605), the gas inlet (604) is connected with the gas pipe (4), the liquid inlet (605) is connected with the liquid pipe (5), the gas inlet (604) and the liquid inlet (605) are communicated with the first annular pipe (602) and the second annular pipe (603) through pipelines, respectively, the first annular pipe (602) can discharge air, and the second annular pipe (603) can discharge liquid.
2. The rapid-mix fire suppressant system for a helicopter bucket of claim 1, wherein: The through holes (7) are arranged on the outer surface of the shell (601).
3. The rapid-mix fire suppressant system for a helicopter bucket of claim 1, wherein: The side surface of the shell (601) is communicated with a plurality of branch pipes (606) arranged along the circumference of the shell (601), one end of each branch pipe (606) is communicated with the shell (601) and the other end is closed, a liquid discharge pipe (607) is fixed in each branch pipe (606) and communicated with the second annular pipe (603), the liquid discharge pipe (607) is provided with a hole, and the through holes (7) are arranged on the branch pipes (606) and have a plurality of lengthwise arrays.
4. The rapid-mix fire suppressant system for a helicopter bucket of claim 3, wherein: The end surface of each branch pipe (606) away from the shell (601) is connected with a hanging ring (608), and a rope (609) connected with the side wall of the bucket is tied on the hanging ring (608).
5. The rapid-mix fire suppressant system for a helicopter bucket of claim 1, wherein: The gas pipe (4) and the liquid pipe (5) are both connected with a one-way electromagnetic valve (8).
6. The rapid-mix fire suppressant system for a helicopter bucket of claim 5, wherein: A filter (9) is connected between the liquid pump (2) and the liquid tank (3), and an overflow valve (10) connected with the liquid tank (3) is connected between the output port of the liquid pump (2) and the one-way electromagnetic valve (8).