Hybrid unmanned ship

By combining fuel and hydrogen power on unmanned ships and equipped with ventilation and cooling systems, the problems of insufficient power and environmental pollution are solved, and the selection of flexible activity forces and environmental protection are achieved, ensuring navigation performance and safety.

CN119190286APending Publication Date: 2024-12-27SHANGHAI JIAOTONG UNIV

Patent Information

Application Number
CN202411271157.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2024-12-27

AI Technical Summary

Technical Problem

The existing unmanned ship power is not enough to meet the requirements of rapid navigation, and the fuel power causes environmental pollution, and the battery storage time is long but the discharge time is short.

Method used

Adopt a hybrid unmanned ship design, combining fuel power mechanism and hydrogen power mechanism, through water jet thruster and shaftless thruster, and equipped with a ventilation system, cooling system and fire safety system, using seawater as a cooling source to achieve power flexibility Select and protect the environment.

Benefits of technology

Meet various speed requirements, reduce environmental pollution, ensure gas ventilation in the cabin, ensure the sealing performance of diving navigation, realize automatic fire extinguishing function, reduce the use of cooling energy, and ensure uninterrupted cooling water sources.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a hybrid unmanned ship which comprises a ship body, a water-jet propeller is arranged at the tail end of the ship body, shaftless propellers are arranged on the two sides of the ship body, and a fuel power mechanism used for driving the water-jet propeller to move and a hydrogen power mechanism used for driving the shaftless propellers to move are further arranged in the ship body. The hydrogen power mechanism comprises a plurality of hydrogen storage tanks located in the ship body and a hydrogen generator used for receiving hydrogen in the hydrogen storage tanks, the hydrogen power mechanism further comprises a battery, the hydrogen generator is connected with the battery through an electric connecting line, and the fuel oil power mechanism comprises a fuel oil bin and an engine which are located in the ship body. The fuel oil bin is connected with the engine through an oil supply pipeline, the output end of the engine is connected with the power end of the water-jet propeller through the speed-changing gear box, power selection can be carried out according to requirements during sailing, and therefore the sailing speed requirements under various sailing states can be met, and the sailing speed of the water-jet propeller can be adjusted. Meanwhile, the environmental pollution can be reduced.
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Description

Technical Field

[0001] The present invention relates to the field of unmanned ships, and in particular to a hybrid unmanned ship. Background Art

[0002] An unmanned boat is a fully automatic surface robot that can navigate on the water according to preset tasks without human driving. It can be widely used in environmental monitoring, scientific research and exploration, underwater mapping, search and rescue, security patrol, fishery farming and other fields. Most of the current unmanned boats use fuel or batteries as power to drive the unmanned boats, but fuel power will produce exhaust gas, thus causing environmental pollution, and the battery has a long storage time and a short discharge time, and its power cannot meet the requirements of fast navigation. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a hybrid unmanned boat that can meet the speed requirements and reduce environmental pollution.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a hybrid unmanned boat, comprising a hull, a water jet propulsion device is arranged at the rear end of the hull, shaftless propulsion devices are arranged on both sides of the hull, and a fuel power mechanism for driving the water jet propulsion device to move and a hydrogen power mechanism for driving the shaftless propulsion device to move are also arranged in the hull;

[0005] The hydrogen power mechanism includes a plurality of hydrogen storage tanks located in the hull and a hydrogen generator for receiving hydrogen in the hydrogen storage tanks, and also includes a battery, the hydrogen generator and the battery are connected via an electrical connection line, and also includes a hydrogen-electricity transmission line for connecting the battery and the shaftless propeller;

[0006] The fuel power mechanism includes a fuel tank and an engine located in the hull, wherein the fuel tank and the engine are connected via a fuel supply pipeline, and also includes a gear transmission, wherein the output end of the engine is connected to the power end of the water jet propulsion device via the gear transmission.

[0007] Furthermore, it also includes a ventilation system, which includes a ventilation grille assembly arranged on the top of the hull, a fire damper arranged below the ventilation grille assembly and an axial flow fan connected to the fire damper. When the ventilation grille assembly is in an open state, the axial flow fan is connected to the external air.

[0008] Furthermore, the ventilation grille assembly includes a plurality of exhaust plates arranged sequentially from top to bottom, the same end of the plurality of exhaust plates is a driving end, the driving ends of the plurality of exhaust plates are flush, the sizes of the plurality of exhaust plates decrease sequentially from top to bottom, so that the other ends of the plurality of exhaust plates are stepped from top to bottom, and one side of the driving end of the plurality of exhaust plates is provided with an exhaust plate driving mechanism for driving the plurality of exhaust plates to rotate simultaneously;

[0009] When the plurality of exhaust plates rotate simultaneously to form an inclined structure, a passage communicating with the inner cavity of the hull is formed between two adjacent exhaust plates.

[0010] Furthermore, the invention also includes side wing structures located on both sides of the hull.

[0011] Furthermore, it also includes a cooling system, which includes a water storage tank located at the bottom of the hull, in which a cooling water pump for replacing the cooling liquid is provided, and also includes an expansion water tank and a water supply pipeline, wherein the water supply pipeline is used to connect the water storage tank and the expansion water tank, and the expansion water tank is connected to the cooling channels in the engine and the generator through cooling pipes and return water pipes respectively.

[0012] Furthermore, it also includes a fire safety system, which includes a fire extinguishing agent control cabinet located in the hull, and also includes a fire delivery pipeline connected to the fire extinguishing agent control cabinet, and a plurality of sensor sprinkler heads are arranged on the fire delivery pipeline.

[0013] Furthermore, the fire extinguishing agent control cabinet includes a plurality of fire extinguishing agent storage tanks, and heptafluoropropane is stored in the fire extinguishing agent storage tanks.

[0014] Furthermore, a plurality of hydrogen storage tank positioning blocks are arranged along the hull direction on both sides of the upper inner part of the hull, and a plurality of positioning holes are arranged on the positioning blocks, and the positions of the positioning holes on the plurality of positioning blocks correspond to each other one by one.

[0015] The beneficial effects of the present invention are:

[0016] 1. In this structure, by setting up the fuel power mechanism and the hydrogen power mechanism, the power can be selected according to the demand during navigation, so as to meet the speed requirements under various navigation states and reduce environmental pollution.

[0017] 2. In this structure, the gas in the cabin can be replaced by setting up a ventilation system, so that the cabin environment can also meet the needs of personnel entering.

[0018] 3. The ventilation system in this structure can discharge the exhaust gas generated by the fuel power mechanism when the fuel power mechanism is used for navigation.

[0019] 4. In this structure, by setting the ventilation grille assembly, the sealing performance of the ventilation port can be ensured during diving and the gas can be prevented from flowing back into the cabin.

[0020] 5. The cooling system of this structure directly uses seawater as the cooling water source, which can reduce the setting of cooling mechanisms, thereby reducing the use of energy, and on the other hand can ensure the uninterrupted cooling water source.

[0021] 6. In this structure, the fire safety system can realize the automatic fire extinguishing function when a fire occurs, thereby ensuring the safety performance of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a hybrid unmanned boat according to an embodiment of the present application.

[0023] Figure 2 This is a schematic diagram of the internal structure of a hybrid unmanned boat according to an embodiment of the present application.

[0024] Figure 3 This is a cross-sectional view of a hybrid unmanned boat according to an embodiment of the present application.

[0025] Marked in the figure are: hull 1, water jet propulsion 2, shaftless propulsion 3, hydrogen generator 4, battery 5, engine 6, gear box 7, ventilation grille assembly 8, fire damper 9, axial flow fan 10, wing structure 11, water storage tank 12, expansion water tank 13, water pipeline 14, fire extinguishing agent control cabinet 15, fire protection delivery pipeline 16, hydrogen storage tank positioning block 17. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, an embodiment of the present application discloses a hybrid unmanned boat, comprising a hull 1, a water jet propulsion device 2 is arranged at the rear end of the hull 1, shaftless propulsion devices 3 are arranged on both sides of the hull 1, and a fuel power mechanism for driving the water jet propulsion device 2 to move and a hydrogen power mechanism for driving the shaftless propulsion device 3 to move are also arranged in the hull 1;

[0028] The hydrogen power mechanism includes a plurality of hydrogen storage tanks located in the hull 1 and a hydrogen generator 4 for receiving hydrogen in the hydrogen storage tanks, and also includes a battery 5. The hydrogen generator 4 and the battery 5 are connected via an electrical connection line, and also includes a hydrogen-electricity transmission line for connecting the battery 5 and the shaftless propeller 3;

[0029] The fuel power mechanism includes a fuel tank and an engine 6 located in the hull 1, and the fuel tank and the engine 6 are connected through a fuel supply pipeline, and also includes a gear transmission 7, and the output end of the engine 6 is connected to the power end of the water jet propulsion device 2 through the gear transmission 7.

[0030] It should be explained that a control system is also provided in the hull 1, and the control system can realize the switching between the fuel power mechanism and the hydrogen power mechanism.

[0031] When the ship is sailing on the sea, when there is no need for fast sailing or stealth is required, a hydrogen power mechanism can be used to provide a navigation power source, that is, the hydrogen in multiple hydrogen storage tanks is transported to the hydrogen generator 4, and the hydrogen generator 4 uses hydrogen to generate electricity. The generated electricity is stored in the battery 5, and the battery 5 is used to power the shaftless propeller 3, which in turn provides power for the ship to achieve navigation; when the hull 1 is required to achieve fast navigation, a fuel power mechanism is required to provide power, that is, the fuel tank provides fuel to the engine 6, and the engine 6 runs and drives the water jet propulsion device 2 to run through the transmission of the gear transmission 7 to achieve navigation of the ship.

[0032] In this structure, by setting up the fuel power mechanism and the hydrogen power mechanism, it is possible to select power according to demand during navigation, thereby meeting the speed requirements under various navigation states and reducing environmental pollution.

[0033] In this embodiment, a ventilation system is also included, which includes a ventilation grille assembly 8 arranged on the top of the hull 1, a fire damper 9 arranged below the ventilation grille assembly 8, and an axial flow fan 10 connected to the fire damper 9. When the ventilation grille assembly 8 is in an open state, the axial flow fan 10 is connected to the external air.

[0034] Specifically, when a fuel power mechanism is used to provide power, exhaust gas will be generated when the engine 6 is working, so the exhaust gas needs to be removed. At this time, the ventilation grille assembly 8 is opened so that the axial flow fan 10 can be connected to the air outside the cabin. The axial flow fan 10 is turned on to exchange internal and external gases, so that the exhaust gas is removed and fresh gas re-enters the cabin to achieve ventilation operation.

[0035] In this structure, the gas in the cabin can be replaced by setting up a ventilation system. On the one hand, it can discharge the waste gas generated by the fuel, and on the other hand, it can make the cabin environment meet the needs of personnel entering.

[0036] In this embodiment, the ventilation grille assembly 8 includes a plurality of exhaust plates arranged sequentially from top to bottom, the same end of the plurality of exhaust plates is a driving end, the driving ends of the plurality of exhaust plates are flush, the sizes of the plurality of exhaust plates decrease sequentially from top to bottom, so that the other ends of the plurality of exhaust plates are stepped from top to bottom, and one side of the driving end of the plurality of exhaust plates is provided with an exhaust plate driving mechanism for driving the plurality of exhaust plates to rotate simultaneously;

[0037] When a plurality of exhaust plates rotate simultaneously to form an inclined structure, a passage communicating with the inner cavity of the hull 1 is formed between two adjacent exhaust plates.

[0038] It should be explained that the above-mentioned exhaust plate driving mechanism can be of the following structure: it includes a driving wheel arranged at the driving end of the exhaust plate, and a motor for rotating the driving wheel is arranged on one side of the driving wheel. When the motor drives the driving wheel to rotate, the driving wheel synchronously drives the corresponding exhaust plate to rotate to an inclined state. The above-mentioned exhaust plate driving mechanism can also be other structures, which are not limited here.

[0039] When ventilation and exhaust operations are required, the exhaust plate driving mechanism drives multiple exhaust plates to rotate counterclockwise at a certain angle at the same time, so that each exhaust plate is obliquely parallel, and then a channel connected to the inner cavity of the hull 1 is formed between two adjacent exhaust plates. At this time, the gas inside the cabin and the gas outside the cabin can be connected, thereby realizing the ventilation operation.

[0040] The ventilation grille assembly 8 in the present structure includes a plurality of exhaust plates arranged in sequence from top to bottom, and the sizes of the plurality of exhaust plates decrease in sequence from top to bottom, so that when the ventilation grille is in a closed state, the contact area of ​​the front parts of two adjacent exhaust plates can be increased, thereby ensuring its sealing performance, thereby preventing river water from flowing back into the interior when sneaking.

[0041] In this embodiment, side wing structures 11 are also included on both sides of the hull 1.

[0042] It should be explained that a wing structure 11 driving mechanism for driving the wing mechanism to open and retract is provided in the hull 1 .

[0043] During the specific navigation process, the side wing structure 11 can be driven to retract and open to meet the requirements of various navigation states of the hull 1. For example, when the ship speed is required to be too fast, the side wing structure 11 can be retracted and the hull 1 can be floated on the water. At this time, the fuel power mechanism provides power to enable the hull 1 to move forward at the maximum speed. When diving, the opening angle of the side wing structure 11 can be adjusted according to the size of the waves, so that the side wing structure 11 has the ability to resist waves, thereby ensuring the stability of the hull 1 in navigation.

[0044] In this embodiment, a cooling system is also included, which includes a water storage tank 12 located at the bottom of the hull 1, and a cooling water pump for replacing the cooling liquid is provided in the water storage tank 12. It also includes an expansion water tank 13 and a water pipeline 14. The water pipeline 14 is used to connect the water storage tank 12 and the expansion water tank 13. The expansion water tank 13 is connected to the cooling channels in the engine 6 and the generator through cooling pipes and return water pipes respectively.

[0045] It should be explained that the water supply pipeline 14, the cooling pipeline and the return water pipeline can all be equipped with a water pump for flowing the coolant.

[0046] Specifically, since the engine 6 and the generator will generate heat during use, and an overheated use environment will affect the service life and working performance of the engine 6 and the generator, when performing a cooling operation, the cooling water pump works to pump seawater into the water storage tank 12, and then under the action of the water pump, the cooling water source is transported to the expansion water tank 13, and then through the setting of the cooling pipeline and the return water pipeline, the coolant circulates between the expansion water tank 13, the engine 6 and the generator, thereby achieving a cooling operation on the engine 6 and the generator. When the cooling water is heated up after being used for a period of time, the coolant in the expansion water tank 13 is transported back to the water storage tank 12, the cooling water pump is turned on, and the returned hot liquid is directly discharged into the sea, and then the cooled seawater is transported to the water storage tank 12 for a new round of cooling cycle operation.

[0047] The cooling system of this structure directly uses seawater as the cooling water source, which firstly reduces the setting of cooling mechanisms, thereby reducing the use of energy, and on the other hand can ensure the uninterrupted cooling water source.

[0048] In this embodiment, a fire safety system is also included. The fire safety system includes a fire extinguishing agent control cabinet 15 located in the hull 1 and a fire delivery pipeline 16 connected to the fire extinguishing agent control cabinet 15. The fire delivery pipeline 16 is provided with a plurality of sensor sprinkler heads.

[0049] The fire extinguishing agent control cabinet 15 includes a plurality of fire extinguishing agent storage tanks, in which HFC-227ea is stored, and other fire extinguishing agent liquids or gases may also be stored.

[0050] It should be explained that the above-mentioned multiple sensor sprinkler heads are located at different positions in the cabin, so as to realize no-dead-angle protection for different positions in the cabin.

[0051] Specifically, the above-mentioned sensor sprinkler head is installed with a fire warning sensor, such as a high temperature sensor, a smoke sensor, etc. Once the sensor sprinkler head detects the occurrence of a fire, the corresponding sensor sprinkler head opens, and at the same time the fire extinguishing agent control cabinet 15 receives the fire signal and delivers the fire extinguishing agent to the fire delivery pipeline 16. The fire extinguishing agent is sprayed out from the corresponding sensor sprinkler head, thereby realizing precise fire extinguishing operation.

[0052] In this structure, the fire safety system can realize the automatic fire extinguishing function when a fire occurs, and the fire location can be accurately detected and extinguished through the setting of multiple sensor sprinkler heads, thereby ensuring the safety performance of the ship.

[0053] In this embodiment, a plurality of hydrogen storage tank positioning blocks 17 are provided on both sides of the upper inner part of the hull 1 along the direction of the hull 1, and a plurality of positioning holes are provided on the positioning blocks, and the positions of the positioning holes on the plurality of positioning blocks correspond to each other.

[0054] Specifically, in this structure, by setting the positioning blocks and positioning holes, when installing the hydrogen storage tank, it is only necessary to insert the hydrogen storage tank into the positioning holes corresponding to the positioning blocks in turn, thereby facilitating the disassembly of the hydrogen storage tank for the inflation operation.

[0055] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hybrid unmanned boat, characterized in that: The invention comprises a hull (1), wherein a water jet propulsion device (2) is arranged at the rear end of the hull (1), shaftless propulsion devices (3) are arranged on both sides of the hull (1), and a fuel power mechanism for driving the water jet propulsion device (2) to move and a hydrogen power mechanism for driving the shaftless propulsion device (3) to move are also arranged in the hull (1); The hydrogen power mechanism comprises a plurality of hydrogen storage tanks located in the hull (1) and a hydrogen generator (4) for receiving hydrogen in the hydrogen storage tanks, and also comprises a battery (5), wherein the hydrogen generator (4) and the battery (5) are connected via an electrical connection line, and also comprises a hydrogen-electricity transmission line for connecting the battery (5) and the shaftless propeller (3); The fuel power mechanism comprises a fuel tank and an engine (6) located in the hull (1), wherein the fuel tank and the engine (6) are connected via a fuel supply pipeline, and further comprises a gear transmission (7), wherein the output end of the engine (6) is connected to the power end of the water jet propulsion device (2) via the gear transmission (7).

2. The hybrid unmanned boat according to claim 1, characterized in that: The invention also comprises a ventilation system, wherein the ventilation system comprises a ventilation grille assembly (8) arranged on the top of the hull (1), a fire damper (9) arranged below the ventilation grille assembly (8), and an axial flow fan (10) connected to the fire damper (9); when the ventilation grille assembly (8) is in an open state, the axial flow fan (10) is connected to the external air.

3. The hybrid unmanned boat according to claim 2, characterized in that: The ventilation grille assembly (8) comprises a plurality of exhaust plates arranged in sequence from top to bottom, the same end of the plurality of exhaust plates being a driving end, the driving ends of the plurality of exhaust plates being flush, the sizes of the plurality of exhaust plates decreasing in sequence from top to bottom, so that the other ends of the plurality of exhaust plates are in a stepped shape from top to bottom, and an exhaust plate driving mechanism for driving the plurality of exhaust plates to rotate simultaneously is arranged on one side of the driving end of the plurality of exhaust plates; When the plurality of exhaust plates rotate simultaneously to form an inclined structure, a passage communicating with the inner cavity of the hull (1) is formed between two adjacent exhaust plates.

4. The hybrid unmanned boat according to claim 2, characterized in that: It also includes side wing structures (11) located on both sides of the hull (1).

5. The hybrid unmanned boat according to claim 1, characterized in that: The vessel also includes a cooling system, the cooling system including a water storage tank (12) located at the bottom of the hull (1), a cooling water pump for replacing cooling liquid being arranged in the water storage tank (12), an expansion water tank (13) and a water delivery pipeline (14), the water delivery pipeline (14) being used to connect the water storage tank (12) and the expansion water tank (13), the expansion water tank (13) being connected to cooling channels in the engine (6) and the generator through a cooling pipeline and a return water pipeline, respectively.

6. The hybrid unmanned boat according to claim 1, characterized in that: It also includes a fire safety system, which includes a fire extinguishing agent control cabinet (15) located in the hull (1), and a fire delivery pipeline (16) connected to the fire extinguishing agent control cabinet (15), and a plurality of sensor sprinkler heads are arranged on the fire delivery pipeline (16).

7. The hybrid unmanned boat according to claim 6, characterized in that: The fire extinguishing agent control cabinet (15) comprises a plurality of fire extinguishing agent storage tanks, wherein heptafluoropropane is stored in the fire extinguishing agent storage tanks.

8. The hybrid unmanned boat according to claim 1, characterized in that: A plurality of hydrogen storage tank positioning blocks (17) are arranged on both sides of the upper inner part of the hull (1) along the direction of the hull (1), and a plurality of positioning holes are arranged on the positioning blocks, and the positions of the positioning holes on the plurality of positioning blocks correspond to each other.

Citation Information

Patent Citations

  • Hybrid power fast unmanned monitoring boat

    CN105314081A

  • Fuel-electric hybrid triple-hulled high-speed vessel and working method thereof

    CN107380341A

  • Offshore exploration platform

    CN115303432A

  • Novel ventilation grid for ship

    CN213354812U

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    CN213832075U

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