A type of amphibious firefighting aircraft taxiing water intake pipeline

Abstract

This invention provides a water intake pipeline for an amphibious firefighting aircraft. It includes a water intake hopper (1), a lower water intake pipe (2), a solenoid valve (3), a middle water intake pipe (4), an upper water intake pipe (5), and a horizontal water intake pipe (6). The water intake hopper (1), lower water intake pipe (2), solenoid valve (3), middle water intake pipe (4), upper water intake pipe (5), and horizontal water intake pipe (6) are arranged in series from bottom to top, with their ends connected in pairs via flanges. The middle water intake pipe (4) is a three-way pipe, with its upper and lower channels connected to the upper water intake pipe (5) and lower water intake pipe (2) respectively, and its third channel connected to the rear water tank (10). The horizontal water intake pipe (6) is connected to the front water tank (9). The solenoid valve (3) is located at the lower part of the middle water intake pipe (4). The water intake hopper (1) is located at the end of the lower water intake pipe (2). This invention achieves flow distribution and has a simple and reliable structure.

Description

Technical Field

[0001] This invention belongs to the field of amphibious firefighting aircraft mission system design, and relates to a water intake pipeline for amphibious firefighting aircraft. Background Technology

[0002] Seaplanes can take off and land on water and are used for firefighting. They are characterized by high speed and high firefighting efficiency. They can scoop water from nearby waters at high speed and quickly fly to the fire area to carry out water-dropping firefighting missions. They are highly maneuverable and flexible, and are currently widely used abroad. To enable aircraft to scoop water while gliding on water, a device is needed to quickly guide water into the aircraft and distribute water from multiple tanks. Summary of the Invention

[0003] The purpose of this invention is to provide a water intake pipeline for amphibious firefighting aircraft, which can achieve flow distribution and has a simple and reliable structure.

[0004] To achieve the above objectives, the present invention proposes the following technical solution: a water intake pipeline for amphibious firefighting aircraft, comprising a water intake hopper, a lower water intake pipe, a solenoid valve, a middle water intake pipe, an upper water intake pipe, and a horizontal water intake pipe; the water intake hopper, the lower water intake pipe, the solenoid valve, the middle water intake pipe, the upper water intake pipe, and the horizontal water intake pipe are arranged in series from bottom to top, with their ends connected in pairs via flanges; the middle water intake pipe is a T-junction, with its upper and lower channels connected to the upper and lower water intake pipes respectively, and its third channel connected to the rear water tank; the horizontal water intake pipe is connected to the front water tank; the solenoid valve is located at the lower part of the middle water intake pipe; the water intake hopper is located at the end of the lower water intake pipe.

[0005] In the aforementioned amphibious firefighting aircraft's taxiing water intake pipeline, a guide plate A is installed in the middle of the water intake pipe. This can achieve the distribution of water intake flow between the front and rear water tanks by interfering with the direction of water flow velocity in the water intake pipe. Multiple protrusions are distributed on the inner wall of the water intake pipe to form guide plates B. The multi-point arrangement allows some water to flow.

[0006] In the aforementioned amphibious firefighting aircraft's taxiing water intake pipeline, the central pipe of the water intake pipeline is fixed to the amphibious firefighting aircraft by a tie rod and a connecting plate.

[0007] In the aforementioned amphibious firefighting aircraft's taxiing water intake pipeline, the horizontal water intake pipe is fixed to the amphibious firefighting aircraft via a connecting plate.

[0008] In the aforementioned amphibious firefighting aircraft's taxiing water intake pipeline, the upper pipe of the water intake pipeline is fixed to the amphibious firefighting aircraft by a tie rod.

[0009] By utilizing the tensile and shear bearing capacity of the tie rods and connecting plates, the impact force generated when the high-speed water flow changes direction during water intake is transmitted to the surrounding body structure.

[0010] In the aforementioned amphibious firefighting aircraft's taxiing water intake system, the lower, middle, upper, and horizontal water intake pipes are made of high-hardness stainless steel. This provides excellent scratch resistance and corrosion resistance.

[0011] In the aforementioned amphibious firefighting aircraft's taxiing water intake pipeline, the lower water intake pipe, middle water intake pipe, upper water intake pipe, and horizontal water intake pipe are characterized in that they are arranged in an "F" shape, forming one water inlet and two water outlets, which can simultaneously draw water from two water tanks.

[0012] In the aforementioned amphibious firefighting aircraft's gliding water intake pipeline, the solenoid valve opens / closes according to instructions to prevent water from flowing backward after water intake is completed.

[0013] Beneficial effects: The water-drawing pipeline of this invention enables rapid water drawing from a "field"-shaped water tank. The entire water-drawing system, constructed using this invention, has a "field"-shaped water tank with its center of gravity close to the aircraft's center of gravity. Water drawing and dispensing have minimal impact on the aircraft's center of gravity, making the aircraft's attitude easier to control. This invention has a simple and reliable structure and a reasonable flow distribution. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation of the present invention on an aircraft.

[0015] Figure 2 This is a schematic diagram of the structure of the present invention;

[0016] Figure 3 This is a schematic diagram showing the installation of guide plates A and B on the middle pipe of the water intake pipe;

[0017] Figure 4 This is a schematic diagram of the airflow guiding plate B. Detailed Implementation

[0018] To better understand the function and purpose of the present invention, and not to be regarded as a limiting solution, the following detailed description of the embodiments of the present invention is given based on the accompanying drawings.

[0019] Please see Figures 1-4As shown in the figure, the present invention is installed at the rear of the step of the bottom of a seaplane, between the fuselage wall panel and the water tank. Two sets of water suction pipelines are installed on the aircraft to enable water suction from the water tanks arranged symmetrically in a "field" shape (including two front water tanks 9 and two rear water tanks 10). It includes a water suction bucket 1, a lower water suction pipe 2, a solenoid valve 3, a middle water suction pipe 4, an upper water suction pipe 5, a horizontal water suction pipe 6, a pull rod 7 and a connecting plate 8. The water suction bucket 1, the lower water suction pipe 2, the solenoid valve 3, the middle water suction pipe 4, the upper water suction pipe 5, and the horizontal water suction pipe 6 are arranged in series from bottom to top, and the ends are connected pairwise by flanges; the middle water suction pipe 4 is a three-way pipe, connected to the lower water suction pipe 2 and the upper water suction pipe 5 in the vertical direction, and the other end is connected to the water tank wall. A deflector plate is provided in the middle of the middle water suction pipe 4; the solenoid valve 3 is provided at the lower part of the middle water suction pipe 4; the water suction bucket 1 is provided at the end of the lower water suction pipe 2; the pull rod 7 and the connecting plate 8 connect the water suction pipe to other structures of the aircraft. When water is being suctioned, when the high-speed water flow in the water suction pipe changes direction, the generated impact force can be reliably transmitted to the surrounding airframe structure through the pull rod 7 and the connecting plate 8.

[0020] Please refer to Figure 2 As shown in the figure, the lower water suction pipe 2, the middle water suction pipe 4, the upper water suction pipe 5, and the horizontal water suction pipe 6 are characterized in that they form an "F" shape, forming one water inlet and two water outlets, and can simultaneously suction water into two water tanks. The pipe wall is made of a high-hardness and corrosion-resistant material, with strong scratch resistance and corrosion resistance.

[0021] The middle water suction pipe 4 is a three-way pipe. The connection direction with the lower water suction pipe 2 is the inlet, and the other two ports are outlets. By simulating the water flow direction in the pipeline, a deflector plate A41 is provided in the middle of the middle water suction pipe 4, which can achieve the distribution of the water suction flow rate of the front and rear water tanks by interfering with the water flow velocity direction in the water suction pipe. Multiple protrusions are distributed on the inner wall of the middle water suction pipe 4 to form a deflector plate B42, which is arranged at multiple points to make part of the water flow.

[0022] The water suction pipeline involved in the present invention can provide a water suction pipeline layout scheme with an "F" shape for the water tanks arranged in a "field" type series layout, and can simultaneously suction water into 2 water tanks on the same side. By adopting two sets of water suction pipeline layouts, water can be simultaneously suctioned into 4 water tanks. One end of the water suction pipeline is installed at the bottom of the ship, and the other end is respectively connected to the front and rear water tanks. The present invention can be used for water suction during the water taxiing of a fire-fighting aircraft to introduce water into the water tank. When water suction is working, the solenoid valve 3 is opened, and the water suction bucket 1 introduces water into the water suction pipeline. Through the distribution of the pipeline, the middle water suction pipe 4 introduces part of the water into the rear water tank, and the horizontal water suction pipe 6 introduces part of the water into the front water tank. After the water suction is completed, the solenoid valve 3 is closed to prevent the water in the water tank from flowing back. This device has the capabilities of simple structure, reliable flow splitting, high strength, scratch resistance, and impact resistance.

[0023] The above-described embodiments merely illustrate the implementation methods of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A water intake pipeline for amphibious firefighting aircraft, characterized in that, The system includes a water hopper, a lower water pipe, a solenoid valve, a middle water pipe, an upper water pipe, and a horizontal water pipe. The water hopper, lower water pipe, solenoid valve, middle water pipe, upper water pipe, and horizontal water pipe are arranged in series from bottom to top, with their ends connected in pairs via flanges. The middle water pipe is a tee pipe, with its upper and lower channels connecting to the upper and lower water pipes respectively, and its third channel connecting to the rear water tank. The horizontal water pipe connects to the front water tank. The solenoid valve... The lower part of the middle pipe of the water intake pipe is set; the water intake hopper is set at the end of the lower pipe of the water intake pipe; the middle of the middle pipe of the water intake pipe is equipped with a guide plate A, and multiple protrusions are distributed on the inner wall of the middle pipe of the water intake pipe to form a guide plate B, which can achieve the distribution of water intake flow between the front and rear water tanks by interfering with the direction of water flow velocity in the water intake pipe; the lower pipe, middle pipe, upper pipe, and horizontal pipe of the water intake pipe form an "F" shape, forming one inlet and two outlets, which can simultaneously draw water from two water tanks.

2. The amphibious firefighting aircraft taxiing water intake pipeline according to claim 1, characterized in that, The water intake pipe is fixed to the amphibious firefighting aircraft by a tie rod and a connecting plate.

3. The amphibious firefighting aircraft taxiing water intake pipeline according to claim 1, characterized in that, The horizontal water intake pipe is fixed to the amphibious firefighting aircraft via a connecting plate.

4. The amphibious firefighting aircraft taxiing water intake pipeline according to claim 1, characterized in that, The water intake pipe is fixed to the amphibious firefighting aircraft by a tie rod.

5. The amphibious firefighting aircraft taxiing water intake pipeline according to claim 1, characterized in that, The lower water pipe, middle water pipe, upper water pipe, and horizontal water pipe are made of high-hardness stainless steel.

6. The amphibious firefighting aircraft taxiing water intake pipeline according to claim 1, characterized in that, The solenoid valve opens / closes according to instructions, and after completing water intake, it prevents water from flowing backward.

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