Extended-range underwater vehicle

Abstract

The invention discloses an underwater vehicle extended range which comprises a vehicle body, and a power system, an extended range system and a control system are arranged in the vehicle body. The power system comprises a storage battery, a driving module and a buoyancy control system, and the storage battery is electrically connected with the driving module; the range extending system is electrically connected with the storage battery; the control system is electrically connected with the range extending system and the storage battery; the control system is used for managing the storage battery and the range extending system, when the charge state of the storage battery is reduced to a set threshold value, the control system sends a floating instruction to the buoyancy control system, after the aircraft body floats to the water surface, the control system controls the range extending system to be started, and the range extending system is used for charging the storage battery after being started. According to the device, power is supplied to the storage battery through the range extending system, so that the device has long cruising ability, goes deep into more remote and complex areas of the ocean, continuously collects data for a long time, and provides more comprehensive and continuous ocean ecological information for researchers.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater vehicles, and in particular to an underwater vehicle with an extended range. Background Art

[0002] In the field of underwater vehicles, traditional power systems mainly include battery power systems, fuel cell power systems, and diesel-electric hybrid power systems. Battery power systems have been widely used in the early days due to their simple structure and low cost. For example, small underwater observation robots often use this system.

[0003] The battery power system has obvious shortcomings in terms of endurance. The insufficient endurance requires underwater vehicles to frequently return to base to replenish energy when performing long-distance and long-term missions, which seriously affects the efficiency of mission execution and limits their application in deep-sea remote detection, large-scale marine scientific research and other fields. Summary of the invention

[0004] The purpose of the present invention is to provide an underwater vehicle with a range extender to solve the problems existing in the above-mentioned prior art and the problem of insufficient endurance of the battery power system.

[0005] To achieve the above-mentioned object, the present invention provides the following solutions: The present invention provides an underwater vehicle with an extended range, comprising a vehicle body, wherein a power system, a range extending system and a control system are arranged in the vehicle body;

[0006] The power system includes a battery, a drive module and a buoyancy control system, and the battery and the drive module are electrically connected;

[0007] a range-extending system, the range-extending system being electrically connected to the battery;

[0008] The control system is electrically connected to the range extender system and the battery;

[0009] The control system is used to manage the battery and the range extender system. When the charge state of the battery drops to a set threshold, the control system sends a floating command to the buoyancy control system, so that the vehicle body floats to the surface. Then, the control system controls the range extender system to start, and the range extender system is used to charge the battery after it is started.

[0010] Preferably, the range extender system includes a micro gas turbine and a generator, the micro gas turbine is transmission-connected to the generator, the micro gas turbine is connected to a compressor and a fuel chamber, the compressor is used to pressurize the air entering the gas turbine, the fuel chamber is used to provide liquid fuel to the gas turbine, and the generator is electrically connected to the battery.

[0011] Preferably, the micro gas turbine has an adjustable intake system, and the adjustable intake system has a unary vector pipeline.

[0012] Preferably, a DC-DC converter is provided between the generator and the storage battery, and the DC-DC converter precisely controls the transmission direction and power magnitude of electric energy.

[0013] Preferably, a filter is installed on the unary vector pipeline. The filter adopts a composite layered streamline structure. The inertial stage blades are arranged in a fan shape, and the sizes of the blade sockets increase sequentially from the inside to the outside, which can effectively drain ocean waves and filter out most impurities. The internal hook of the middle streamline blade can filter seawater and reduce the resistance loss of gas flow. The wire mesh at the tail section can filter sand dust and salt fog.

[0014] The present invention discloses the following technical effects: In this device, the power generation system supplies power to the storage battery, enabling the device to have a long endurance capacity, penetrate deeper into more remote and complex areas of the ocean, collect data continuously for a long time, and provide more comprehensive and continuous marine ecological information for scientific research personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the range extender control of the underwater vehicle of the present invention;

[0017] Figure 2 It is a schematic diagram of the charging process of the present invention; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0019] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0020] Refer to Figure 1-2 , the present invention provides an underwater vehicle range extender, including a vehicle body. A power system, a range extender system, and a control system are arranged inside the vehicle body;

[0021] The power system includes a battery, a drive module and a buoyancy control system, and the battery and the drive module are electrically connected;

[0022] A range-extending system, the range-extending system is electrically connected to the battery;

[0023] The control system is electrically connected to the range extender system and the battery;

[0024] The control system is used to manage the battery and the range extender system. When the battery's state of charge drops to a set threshold, the control system sends a floating command to the buoyancy control system, causing the vehicle body to float to the surface. The control system then controls the range extender system to start, which is then used to charge the battery.

[0025] Starting condition: Under the starting condition, since the battery is fully charged, the control system directly controls the drive module to start with power from the battery. At this time, the drive module outputs at a lower speed and torque to allow the aircraft body to start smoothly, avoiding damage to the equipment caused by excessive impact.

[0026] Cruising condition:

[0027] When the device enters the cruising state, if the battery's state of charge is higher than the set threshold, the drive module is powered by the battery alone to maintain the device's stable cruising speed. During this process, the control system monitors the battery's state of charge and the drive module's working state in real time, and adjusts the drive module's output power according to the device's load changes to maintain the device's stable operation.

[0028] Charging conditions:

[0029] When the state of charge of the battery is lower than a set threshold, the control system controls the buoyancy control system to make the device float. After the device floats to the water surface, the range extender system starts to charge the battery. After charging is completed, the control system controls the buoyancy control system to sink the device.

[0030] To further optimize the solution, the range extender system includes a micro gas turbine and a generator. The micro gas turbine is transmission-connected to the generator. The micro gas turbine is connected to a compressor and a fuel chamber. The compressor is used to pressurize the air entering the gas turbine. The fuel chamber is used to provide liquid fuel to the gas turbine. The generator is electrically connected to the battery.

[0031] The compressor pressurizes the air to 0.8-1.2MPa and sends it into the combustion chamber.

[0032] Further optimizing the scheme, the micro gas turbine has an adjustable air intake system, and the adjustable air intake system has a one-dimensional vector pipeline.

[0033] The unary vector pipeline is an intake pipeline structure with adaptive adjustment, which can dynamically adjust the shape and parameters of the pipeline according to changes in the external environment (such as water depth, pressure, temperature, etc.) to ensure a stable intake air volume for the gas turbine under different operating conditions.

[0034] The adjustment parameters of the unary vector pipeline (such as length, angle, cross-sectional area, etc.) are controlled by a single variable, which simplifies the adjustment mechanism.

[0035] The unary vector pipeline can automatically adjust the intake air direction and air flow rate according to changes in the external environment to ensure the efficiency and stability of intake air.

[0036] Working principle of the unary vector pipeline:

[0037] The unary vector pipeline achieves adaptive adjustment through the following mechanisms:

[0038] Pressure induction adjustment:

[0039] High-precision pressure sensors are integrated inside the unary vector pipeline to monitor changes in external water pressure in real time. When the water pressure increases (such as in a deep-sea environment), the pipeline automatically adjusts its length and angle to optimize the intake air passage and ensure a stable intake air volume; when the water pressure decreases (such as in a shallow-water environment), the pipeline returns to its initial state to avoid over-adjustment.

[0040] Temperature adaptability:

[0041] The pipeline uses composite materials resistant to low and high temperatures and can maintain structural stability in extreme temperature environments; in a low-temperature environment, the pipeline adjusts the internal air flow organization to avoid blockage of the intake air passage by condensed water.

[0042] Impurity filtration:

[0043] The pipeline is combined with a composite stratified streamline filter to effectively filter impurities such as salt spray and dust in seawater.

[0044] The unary vector pipeline reduces the loss of gas flow resistance by optimizing the internal streamline design of the pipeline to ensure the efficiency of intake air.

[0045] Technical advantages of the unary vector pipeline:

[0046] Strong self-adaptability: It can automatically adjust pipeline parameters according to changes in the external environment to ensure the stable operation of the gas turbine under different operating conditions.

[0047] High-efficiency filtration: Combined with a composite stratified streamline filter, the filtration efficiency is as high as 99%, ensuring the purity of intake air.

[0048] Low flow resistance: By optimizing the internal streamline design of the pipeline, the flow resistance loss is only 53.2%, significantly improving the intake air efficiency.

[0049] Compact structure: Adopting lightweight design to reduce space occupation, suitable for the compact layout of underwater vehicles.

[0050] For a further optimized solution, a DC-DC converter is provided between the generator and the battery, and the DC-DC converter precisely controls the transmission direction and power magnitude of electric energy.

[0051] A filter is installed on the unary vector pipeline. The filter adopts a composite layered streamline structure. The inertial stage blades are arranged in a fan shape, and the sizes of the blade grooves increase sequentially from the inside to the outside, which can effectively divert ocean waves and filter out most impurities; the internal hook of the streamline blades in the middle section can filter seawater and reduce the resistance loss of gas flow; the wire mesh at the tail section can filter dust and salt fog.

[0052] Through this structural design, the intake system can operate stably in a complex deep-sea environment, providing clean and stable intake air for the micro gas turbine.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0054] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An underwater vehicle with extended range, characterized in that: The invention comprises a vehicle body, wherein a power system, a range extension system and a control system are arranged in the vehicle body; The power system includes a battery, a drive module and a buoyancy control system, and the battery and the drive module are electrically connected; a range-extending system, the range-extending system being electrically connected to the battery; The control system is electrically connected to the range extender system and the battery; The control system is used to manage the battery and the range extender system. When the charge state of the battery drops to a set threshold, the control system sends a floating command to the buoyancy control system, so that the vehicle body floats to the surface. Then, the control system controls the range extender system to start, and the range extender system is used to charge the battery after it is started.

2. The underwater vehicle range extender according to claim 1, characterized in that: The range extender system includes a micro gas turbine and a generator, wherein the micro gas turbine is transmission-connected to the generator, the micro gas turbine is connected to a compressor and a fuel chamber, the compressor is used to pressurize the air entering the gas turbine, the fuel chamber is used to provide liquid fuel to the gas turbine, and the generator is electrically connected to the battery.

3. The underwater vehicle range extender according to claim 2, characterized in that: The micro gas turbine has an adjustable air intake system, and the adjustable air intake system has a one-dimensional vector duct.

4. The underwater vehicle range extender according to claim 2, characterized in that: A DC-DC converter is provided between the generator and the storage battery, and the DC-DC converter accurately controls the transmission direction and power size of the electric energy.

5. The underwater vehicle range extender according to claim 2, characterized in that: A filter is installed on the one-dimensional vector pipeline. The filter adopts a composite layered streamlined structure. The inertia-stage blades are arranged in a fan shape, and the blade sockets increase in size from the inside to the outside. It can effectively drain the waves and filter out most impurities. The internal hooks of the middle-section streamlined blades can filter seawater and reduce gas flow resistance losses. The wire mesh at the tail section can filter sand, dust and salt spray.

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