Hydrogen fuel power dredger for water supply channel

Abstract

The invention discloses a hydrogen fuel power dredger for a water supply channel. The dredger comprises a dredger body, a drill rod operation system, a hydrogen containment system, a hydrogen fuel cell system, a lithium battery system, a propelling system, a monitoring system, a fire fighting system and other auxiliary systems. Functional cabin sections such as a fuel cell cabin, a lithium battery cabin and a carbon dioxide cabin are reasonably arranged in a ship cabin in the longitudinal direction, a drill rod operation system is provided with a main drill rod structure and an auxiliary drill rod structure and is matched with a bottom slope and side slope double-operation mode, a dredging trolley integrates the functions of crushing, sweeping, flushing and suction, and efficient dredging is achieved; the power system adopts a hydrogen fuel cell and lithium battery hybrid power framework and is matched with an intelligent monitoring and fire fighting system to ensure safe and environment-friendly operation, other systems guarantee ship positioning, mooring, transportation and ship-shore interaction, and the problems that a traditional dredging ship pollutes the environment, the operation mode is single, and the power efficiency is low are solved. The system is suitable for fine dredging operation of water supply channels, and has the advantages of zero emission, wide operation range and high intelligent degree.

Description

Technical Field

[0001] This article pertains to dredging equipment for water conservancy projects, specifically involving a hydrogen fuel-powered dredging vessel used in water supply channels. Background Technology

[0002] Water supply channels, as core infrastructure for urban water supply, agricultural irrigation, and ecological water replenishment, are widely distributed in urban and rural areas. Their cross-sectional design is characterized by "narrow width and regular cross-section." The banks of the channels are mostly hardened slopes or natural soil slopes. Some sections also have a layout with dense bends and interspersed shallows, resulting in limited passage space within the channels and making them completely unsuitable for ship navigation. Dredging is a key link in ensuring the water conveyance efficiency of water supply channels and preventing water quality deterioration. It is necessary to regularly remove silt, debris, and suspended pollutants deposited on the bottom and sides of the channels. However, the dredging technologies and equipment currently used in the industry are difficult to adapt to the special operating environment of water supply channels and have serious technical bottlenecks and environmental hazards.

[0003] Currently, conventional dredging equipment in the industry mainly uses diesel engines as its power source. However, in water supply channel operation scenarios, it has exposed multiple technical bottlenecks and environmental defects, making it difficult to meet the current dual requirements of ecological protection and efficient operation. In terms of operational adaptability, traditional dredging equipment exhibits a clear "polarization" problem: while large dredging vessels have high dredging efficiency, their large draft and insufficient hull maneuverability prevent them from operating in narrow water supply channels; while small dredging equipment can adapt to channel space, it generally suffers from weak dredging capacity, long operation cycles, and serious resource waste, making it difficult to complete large-scale, efficient dredging tasks. In terms of environmental protection and energy consumption, the drawbacks of diesel-powered dredging equipment are particularly prominent: during operation, it emits large amounts of pollutants such as carbon monoxide, nitrogen oxides, and particulate matter, directly polluting the channel water and the surrounding atmosphere, disrupting the ecological balance; at the same time, diesel engine energy consumption is difficult to control, energy utilization efficiency is low, and the high-frequency noise generated during operation can seriously disturb the lives of residents around water supply channels that run through cities or near residential areas. In addition, some small dredging equipment is not equipped with a dedicated silo, requiring immediate sludge discharge during the dredging process, which can easily lead to secondary diffusion of the cleaned sludge, causing secondary pollution of the water body and further exacerbating the risk of water quality deterioration.

[0004] With the continuous advancement of environmental protection goals, the demand for green and low-carbon technologies in various industries continues to increase. Water supply channel dredging operations also place higher demands on environmental protection, adaptability, and efficiency. The problems of pollutant emissions, noise pollution, and poor adaptability of traditional diesel-powered dredging vessels can no longer meet the core needs of ecological protection and safe operation of water supply channels. Developing new dredging technologies that are adapted to the special operating scenarios of water supply channels has become an urgent need for the industry's development.

[0005] Hydrogen fuel, as a highly promising clean energy source, has significant advantages such as high calorific value, combustion products consisting only of water, zero pollution, and zero carbon emissions. Its energy conversion efficiency is far higher than that of traditional fossil fuels, and it operates with extremely low noise, which can fundamentally solve the environmental and noise problems caused by diesel power.

[0006] In summary, considering the narrow and navigable nature of water supply channels, the development of a new type of dredging vessel powered by hydrogen fuel, which combines scenario adaptability, operational efficiency, and environmental safety, can effectively solve many problems of traditional dredging technologies. This will enable a green and efficient upgrade of water supply channel dredging operations, which is of great significance for ensuring the water supply capacity of water supply channels, maintaining water quality safety, and protecting the ecological environment. It also has broad application prospects and industry value. Summary of the Invention

[0007] To address the aforementioned issues, this paper proposes a hydrogen fuel cell-powered dredging vessel for water supply channels. The vessel comprises a hull, a drill bit operation system, a hydrogen containment system, a hydrogen fuel cell system, a lithium battery system, a propulsion system, a monitoring system, a fire suppression system, and other auxiliary systems. The hull includes cabins, a bridge, and a deck. The cabins, longitudinally arranged, consist of a fuel cell compartment, a lithium battery compartment, a carbon dioxide compartment, an equipment compartment, a port mud tank, and a starboard mud tank. The bridge is located above the deck. The deck includes a port movable deck, a starboard movable deck, a sludge suction port, and a tailrace outlet. The port and starboard movable decks are respectively installed on opposite sides of the bottom of the hull. The sludge suction port... Located amidships on the deck, the tailwater outlets are respectively located at the front of the port and starboard mud tanks. The drill bit operation system includes a port main drill bit winch, a right main drill bit winch, a left main drill bit, a right main drill bit, a left auxiliary drill bit winch, a right auxiliary drill bit winch, a left auxiliary drill bit, a right auxiliary drill bit, and a dredging trolley. The left and right main drill bit winches are connected to the ends of the left and right main drill bits via wire ropes. The left and right main drill bits are hinged to both sides of the ship's hull. The left and right auxiliary drill bit winches are connected to the ends of the left and right auxiliary drill bits via wire ropes. The left and right auxiliary drill bits are hinged to the front of the ship's hull. The dredging trolley includes a auger cutter. The dredging trolley comprises a auger shaft, a brush, a high-pressure nozzle, and a submersible pulverizing pump. The auger shaft is horizontally mounted at the front end of the dredging trolley's interior. The brush is fixedly mounted horizontally at the center of the dredging trolley's interior. The high-pressure nozzle is fixedly mounted at the rear end of the dredging trolley's interior. The submersible pulverizing pump is vertically mounted above the brush. The hydrogen containment system includes a hydrogen storage tank, a hydrogen refueling pipeline, and a hydrogen supply pipeline. The hydrogen storage tank is installed above the deck of the vessel. The end of the hydrogen refueling pipeline is connected to the refueling port of the hydrogen storage tank. One end of the hydrogen supply pipeline is connected to the outlet of the hydrogen storage tank, and the other end is connected to the fuel input of a hydrogen fuel cell system. The hydrogen fuel cell system includes hydrogen fuel cells. The system comprises a fuel cell stack, a DC busbar system distribution cabinet, and an energy bridge. All components are fixedly installed within the fuel cell compartment. The lithium battery system includes a battery pack, a battery management system, a high-voltage cluster box, and a combiner cabinet. The battery pack is fixedly installed within the lithium battery compartment, and the battery management system, high-voltage cluster box, and combiner cabinet are also fixedly installed within the lithium battery compartment and adjacent to the battery pack. The propulsion system includes a left thruster and a right thruster, symmetrically fixedly installed at the stern of the vessel. The monitoring system includes a suspended fine particulate sludge identification device, an underwater suspended sludge distribution measurement device, an underwater topography detection device, a fuel cell compartment monitoring device, and a lithium battery compartment monitoring device.The suspended fine sludge identification device, underwater suspended sludge distribution measurement device, and underwater topography detection device are installed in the equipment compartment. The fuel cell compartment monitoring device is installed inside the fuel cell compartment, and the lithium battery compartment monitoring device is installed inside the lithium battery compartment. The fire protection system includes a carbon dioxide cylinder group, a carbon dioxide release pipeline, and release nozzles. The carbon dioxide cylinder group is fixedly installed inside the carbon dioxide compartment. One end of the carbon dioxide release pipeline is sealed to the output port of the carbon dioxide cylinder group, and the other end of the carbon dioxide release pipeline branches and extends into the interior of the fuel cell compartment and lithium battery compartment, connecting to the release nozzles. Other auxiliary systems include a driving system, a satellite positioning system, a mooring system, a detachable fender, a hoisting device, and a ship-to-shore transfer device. Through multi-system modular integrated design, a closed loop of dredging, power, monitoring, and protection functions is achieved. The hydrogen fuel cell power architecture eliminates exhaust pollution and is compatible with the environmental protection requirements of water supply channels. The longitudinal zoning layout of each compartment ensures standardized equipment installation and safe isolation. The multi-component collaborative operation of the dredging trolley improves sludge removal efficiency. The auxiliary systems improve the adaptability of the entire ship operation process, solving the problems of single function and environmental pollution of traditional dredging equipment.

[0008] A left filter is installed in the middle of the left mud chamber. A left tailwater pump and a left mud pump are installed at the front and rear of the left mud chamber, respectively. The right filter, right tailwater pump, and right mud pump in the right mud chamber are symmetrically installed with their corresponding devices in the left mud chamber. The left and right filters intercept solid particles in the mud-water mixture through their internal filtration structures. The left and right tailwater pumps are connected to their respective tailwater outlets through pipes. The left and right mud pumps are connected to their respective suction ports through pipes. Through the symmetrical design of the mud chambers, filters, and pumps, efficient separation of mud and water is achieved. The filtered tailwater meets discharge standards to avoid secondary pollution. The mud is centrally stored for easy unloading. The symmetrical layout on both sides improves the stability and efficiency of equipment operation, while reducing the impact of single-sided failures on the overall operation.

[0009] The inclination angle range of the left and right main drill rods is -6° to 70°. When the inclination angle of the left and right main drill rods is -6°, the left and right movable decks are flipped upwards to disassemble and assemble the dredging trolley. The working depth range of the left and right main drill rods is 0 to 8m. The inclination angle range of the left and right auxiliary drill rods is 0° to 85°. Through the wide range of adjustment of the drill rod inclination angle, full coverage dredging of the channel bottom slope and side slope can be achieved, meeting the operation needs of water supply channels with different terrains. The flipping design of the movable deck under the specific inclination angle of the main drill rod simplifies the disassembly and assembly process of the dredging trolley and improves the convenience of equipment maintenance.

[0010] The dredging trolley can be detachably installed at the ends of the left main rod, right main rod, left auxiliary rod, and right auxiliary rod via a connecting mechanism. The detachable connection structure allows for quick switching of the dredging trolley's installation position according to the needs of bottom slope and side slope operations. It also facilitates the individual inspection, maintenance, and replacement of the dredging trolley, reducing equipment downtime and improving operational flexibility and continuity.

[0011] The hydrogen fuel cell stack generates electricity from hydrogen supplied by the hydrogen supply pipeline. The fuel cell stack is started by the electricity in the battery pack. The electricity generated by the fuel cell stack and the surplus electricity in the battery pack are combined through the energy bridge to generate a stable current before being fed into the DC bus system distribution cabinet. Through the hybrid power design of hydrogen fuel and lithium battery, the hydrogen fuel cell generates electricity with zero emissions, the lithium battery assists in starting and energy storage, and the energy bridge realizes peak shaving and valley filling of electricity to ensure the stability and continuity of power supply, improve the energy conversion efficiency of the power system, solve the problems of insufficient range and difficulty in starting from a single power source, and adapt to the long-term stable operation requirements of dredging operations.

[0012] Both the left and right thrusters are electrically connected to the DC busbar system distribution cabinet via cables. The left and right thrusters receive power from the DC busbar system distribution cabinet to power the ship's propulsion. Through the dual-sided symmetrical electric propulsion design, the ship can turn flexibly and move smoothly, and can accurately adjust its working position. It is suitable for working in narrow spaces in water supply channels. The electric propulsion method has low noise and low energy consumption, and works in conjunction with the hydrogen fuel cell power architecture to achieve environmentally friendly operation throughout the entire process.

[0013] The system includes a suspended fine sludge identification device, an underwater suspended sludge distribution measurement device, and an underwater topography detection device. These devices collect information on water quality conditions, sludge conditions, and underwater topography, which is then transmitted to the shore via a ship-to-shore transmission device. Fuel cell and lithium battery compartment monitoring devices detect temperature and smoke levels in their respective compartments in real time. Upon detecting anomalies, the ship automatically activates its fire suppression system, opening carbon dioxide cylinders and releasing carbon dioxide gas through release pipes to nozzles, which then spray the gas into the compartment in the abnormal state. Through the linkage between multi-dimensional monitoring devices and the automatic fire suppression system, precise detection of sludge distribution and topography is achieved, providing data support for operational path planning and improving the targeting and thoroughness of dredging. Simultaneously, it provides real-time protection for the power compartment, rapidly initiating a fire response in abnormal situations to prevent fire spread, ensuring the safety of the ship and personnel, and enhancing the intelligence and safety protection level of the equipment.

[0014] The driving system, satellite positioning system, and ship-to-shore transmission device are fixedly installed in the wheelhouse. The mooring system is fixedly installed at the four corners of the ship's deck. The detachable fenders are installed at the front of the ship's hull via a detachable structure and are located in the area where the ship's hull contacts the dock. The launching device uses a flatbed transport vehicle to carry a gravity-lift davit. The launching device is detachably connected to the lifting points of the ship's hull via slings. Through the optimized layout and functional design of the auxiliary systems, the driving system and satellite positioning system work together to achieve precise ship control and positioning, improving operational accuracy. The ship-to-shore transmission device transmits the scanned information to the shore to assist in dredging operations. The mooring system ensures stable berthing of the ship, and the detachable fenders prevent collisions and damage between the ship and the dock, extending the service life of the equipment. The launching device is adaptable to road and bridge transportation scenarios, enabling convenient launching and landing of the ship, solving the problems of difficult transportation and cumbersome disassembly and assembly of traditional dredging vessels, and improving the operational flexibility and scenario adaptability of the equipment.

[0015] The operation process is as follows: The vessel is transported to a bridge with good road conditions near the work area. The slings of the gravity-lift davit on the launching device are connected to the vessel's lifting points. The launching device is then activated to lower the vessel into the water supply channel, completing the launching process. The vessel is positioned using a satellite positioning system. The monitoring system's suspended fine particulate sludge identification device, underwater suspended sludge distribution measurement device, and underwater topography detection device are activated to perform a comprehensive automatic scan of the water quality conditions, sludge distribution, and underwater topography of the water supply channel. The information obtained from the scanning is transmitted to the shore via a ship-to-shore transmission device. Shore-based personnel then combine this information to plan the operational path and parameters. Depending on the type of work area, either a bottom slope operation mode or a side slope operation mode is selected, and the corresponding dredging mode is chosen in the driver's cab. For bottom slope operations, the left and right main drill winches are started, and the left and right main drills are adjusted to the preset inclination angle, lowering the dredging trolley to the target working depth. For side slope operations, the left and right auxiliary drill winches are started, and the left and right auxiliary drills are adjusted to the preset inclination angle. The dredging trolley is lowered to the target working depth; the trolley is started via the driving system, the auger shaft rotates to break up the silt in the channel, the brushes simultaneously sweep the silt adhering to the channel walls, the high-pressure nozzles spray water to wash away the silt, and the submersible pulverizer pump is started to pump the broken and cleaned mud-water mixture into the left and right mud chambers through dedicated pipelines; after entering the left and right mud chambers, the mud-water mixture flows through the left and right filter devices for filtration, and the filtered tailwater is temporarily stored in the filtration area at the front of the mud chamber. The left tailwater pump and the right tailwater pump are then started. The water pump pumps the tailwater out of the hull through the tailwater outlet; the filtered mud enters the storage area at the rear of the mud tank for temporary storage; after the dredging operation is completed according to the planned route, the dredging trolley and propulsion system are stopped, and the drill rod and dredging trolley are retrieved by the drill winch; the vessel is driven to the designated mud unloading area, and moored by the mooring system; the left and right mud pumps are started, and the mud in the storage area is pumped to the shore or mud collection system through the mud suction port; the vessel is lifted off the water and placed on a flatbed transport vehicle by the gravity inverted boom davit on the lifting device, completing the vessel's launch.

[0016] Beneficial effects:

[0017] Through multi-system modular integrated design, a closed loop of functions including dredging, power, monitoring, and protection is achieved. The hydrogen fuel power architecture eliminates exhaust pollution and is compatible with the environmental protection requirements of water supply channels. The longitudinal zoning layout of each compartment ensures standardized equipment installation and safe isolation. The collaborative operation of multiple components of the dredging trolley improves the efficiency of sludge removal. The auxiliary system improves the adaptability of the entire ship operation process, solving the problems of single function and environmental pollution of traditional dredging equipment.

[0018] The symmetrical mud chamber and filtration and pump design achieves efficient mud-water separation. The filtered tailwater meets discharge standards to avoid secondary pollution. The centralized storage of mud facilitates subsequent unloading. The symmetrical layout on both sides improves the stability and efficiency of equipment operation, while reducing the impact of single-sided failures on the overall operation.

[0019] With a wide range of adjustable drill rod inclination angles, full-coverage dredging of the channel bottom slope and side slopes can be achieved, meeting the operational needs of water supply channels with different terrains. The movable deck flipping design at a specific inclination angle of the main drill rod simplifies the disassembly and assembly process of the dredging trolley and improves the convenience of equipment maintenance.

[0020] With its detachable connection structure, the installation position of the dredging trolley can be quickly switched according to the needs of bottom slope and side slope operations. At the same time, it facilitates the individual inspection, maintenance and replacement of the dredging trolley, reduces equipment downtime, and improves operational flexibility and continuity.

[0021] Through a hybrid power design combining hydrogen fuel and lithium batteries, the hydrogen fuel cell generates electricity with zero emissions, while the lithium battery assists in starting and energy storage. The energy bridge enables peak shaving and valley filling, ensuring the stability and continuity of power supply, improving the energy conversion efficiency of the power system, solving the problems of insufficient range and difficulty in starting from a single power source, and adapting to the long-term stable operation requirements of dredging operations.

[0022] With its dual-sided symmetrical electric propulsion design, the vessel is flexible in steering and moves smoothly, allowing for precise adjustment of its operating position. It is suitable for operations in narrow spaces such as water supply channels. The electric propulsion method is low in noise and energy-saving, and works in conjunction with the hydrogen fuel cell power architecture to achieve environmentally friendly operations throughout the entire process.

[0023] By linking multi-dimensional monitoring devices with an automatic fire suppression system, the system can accurately detect the distribution of silt and the terrain, providing data support for operation path planning and improving the targeting and thoroughness of dredging. At the same time, it can protect the safety of the engine room in real time, quickly activate the fire response in abnormal situations, prevent the spread of fire, ensure the safety of ships and personnel, and improve the intelligence and safety protection level of equipment.

[0024] Through optimized layout and functional design of auxiliary systems, the driving system and satellite positioning system work together to achieve precise ship control and positioning, improving operational accuracy; the ship-to-shore transmission device transmits the scanned information to the shore base to assist in dredging operations; the mooring system ensures stable berthing of the ship; the detachable fenders prevent collision damage between the ship and the dock, extending the service life of the equipment; the lifting device is adapted to road and bridge transportation scenarios, enabling convenient launching and landing of the ship, solving the problems of difficult transportation and cumbersome disassembly and assembly of traditional dredging vessels, and improving the operational flexibility and scenario adaptability of the equipment. Attached Figure Description

[0025] Figure 1 A schematic diagram of a hydrogen fuel-powered dredging vessel for water supply channels;

[0026] Figure 2 A schematic diagram of the bottom slope operation mode of a hydrogen fuel cell-powered dredging vessel for water supply channels;

[0027] Figure 3 A schematic diagram of a slope operation mode for a hydrogen fuel cell-powered dredging vessel used in water supply channels;

[0028] Figure 4 A schematic diagram of the berthing operation mode of a hydrogen fuel cell-powered dredging vessel used in water supply channels;

[0029] Figure 5 A top view of a hydrogen fuel-powered dredging vessel used in water supply channels;

[0030] Figure 6 Interior layout of a hydrogen fuel cell-powered dredging vessel for water supply channels;

[0031] Figure 7 A schematic diagram of a dredging trolley for a hydrogen fuel cell-powered dredging vessel used in water supply channels;

[0032] In the diagram: 1. Ship hull; 11. Fuel cell compartment; 12. Lithium battery compartment; 13. Carbon dioxide compartment; 14. Equipment compartment; 15. Port mud tank; 151. Port filter unit; 152. Port stern pump; 153. Port mud pump; 16. Starboard mud tank; 161. Starboard filter unit; 162. Starboard stern pump; 163. Starboard mud pump; 17. Bridge; 101. Port movable deck; 102. Starboard movable deck 103. Suction Inlet; 104. Tailwater Outlet; 21. Left Main Drill Rod; 22. Right Main Drill Rod; 23. Left Auxiliary Drill Rod; 24. Right Auxiliary Drill Rod; 25. Dredging Trolley; 251. Spiral Cutter Auger Shaft; 252. Brush; 253. High-Pressure Nozzle; 254. Submersible Crusher Pump; 2501. Position of Dredging Trolley when Main Drill Rod is at -6°; 2502. Position of Dredging Trolley when Main Drill Rod is at 0°; 2503. Main Drill Rod Position of the dredging trolley at 70°; 26. Left main drill winch; 27. Right main drill winch; 28. Left auxiliary drill winch; 29. ​​Right auxiliary drill winch; 31. Hydrogen storage tank; 32. Hydrogen refueling pipeline; 33. Hydrogen supply pipeline; 41. Hydrogen fuel cell stack; 42. DC busbar system distribution cabinet; 43. Energy bridge; 51. Battery pack; 52. Battery management system; 53. Cluster high-voltage box; 54. Combiner cabinet; 61. Left thruster; 62. Right thruster; 71. Suspended fine particulate sludge identification device; 72. Underwater suspended sludge distribution measurement device; 73. Underwater topography detection device; 74. Fuel cell compartment monitoring device; 75. Lithium battery compartment monitoring device; 81. Carbon dioxide cylinder group; 91. Driving system; 92. Satellite positioning system; 93. Mooring system; 94. Detachable fender; 95. Ship-to-shore transfer device. Detailed Implementation

[0033] To enhance understanding of the present invention, the invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only for explaining the invention and do not constitute a limitation on the scope of protection of the invention.

[0034] 1. Ship body; 11. Fuel cell compartment; 12. Lithium battery compartment; 13. Carbon dioxide compartment; 14. Equipment compartment; 15. Portal mud tank; 15. Portal filter unit; 151. Portal tailwater pump; 152. Portal mud pump; 153. Starboard mud tank; 16. Starboard filter unit; 161. Starboard tailwater pump; 162. Starboard mud pump; 163. Wheelhouse; 17. Portal movable deck; 101. Starboard movable deck; 102. Suction port; 103. Tailwater outlet; 104. Portal main drill rod; 21. Starboard main drill rod; 22. Portal auxiliary drill rod; 23. Starboard auxiliary drill rod; 24. Dredging trolley; 25. Spiral cutter auger shaft; 251. Brush; 252. High-pressure nozzle; 253. Submersible pulverizer pump; 254. Dredging trolley position at -6° main drill rod; 2501. Dredging trolley position at 0° main drill rod; 2502. Dredging trolley position at 70° main drill rod. Vehicle location 2503, left main drill winch 26, right main drill winch 27, left auxiliary drill winch 28, right auxiliary drill winch 29, hydrogen storage tank 31, hydrogen refueling pipeline 32, hydrogen supply pipeline 33, hydrogen fuel cell stack 41, DC busbar system distribution cabinet 42, energy bridge 43, battery pack 51, battery management system 52, cluster high voltage box 53, combiner cabinet 54, left thruster 61, right thruster 62, suspended fine particulate sludge identification device 71, underwater suspended sludge distribution measurement device 72, underwater terrain detection device 73, fuel cell compartment monitoring device 74, lithium battery compartment monitoring device 75, carbon dioxide cylinder group 81, driving system 91, satellite positioning system 92, mooring system 93, detachable fender 94, ship-to-shore transfer device 95.

[0035] like Figure 1 , 2 As shown in 3, 4, 5, 6, and 7;

[0036] A hydrogen fuel cell-powered dredging vessel for water supply channels, comprising a hull 1, a chisel operation system, a hydrogen containment system, a hydrogen fuel cell system, a lithium battery system, a propulsion system, a monitoring system, a fire-fighting system, and other auxiliary systems. The hull 1 includes cabins, a bridge 17, and a deck. The cabins, longitudinally arranged, comprise a fuel cell compartment 11, a lithium battery compartment 12, a carbon dioxide compartment 13, an equipment compartment 14, a port mud tank 15, and a starboard mud tank 16. The bridge 17 is located above the deck. The deck includes a port movable deck 101, a starboard movable deck 102, a sludge suction port 103, and a tailwater outlet 104. The port movable deck 101 and the starboard movable deck 102... Plates 102 are respectively installed on both sides of the bottom of the ship body 1. The sludge suction ports 103 are respectively located in the middle of the ship deck. The tailwater outlets 104 are respectively located at the front ends of the left mud tank 15 and the right mud tank 16. The drill rod operation system includes a left main drill rod winch 26, a right main drill rod winch 27, a left main drill rod 21, a right main drill rod 22, a left auxiliary drill rod winch 28, a right auxiliary drill rod winch 29, a left auxiliary drill rod 23, a right auxiliary drill rod 24, and a dredging trolley 25. The left main drill rod winch 26 and the right main drill rod winch 27 are respectively connected to the ends of the left main drill rod 21 and the right main drill rod 22 by steel wire ropes. The left main drill rod 21 and the right main drill rod 22 are respectively connected to both sides of the ship body 1 by hinges. The left auxiliary drill rod winch 28, the right auxiliary drill rod winch 29, the left auxiliary drill rod 23, the right auxiliary drill rod 24, and the dredging trolley 25. The auxiliary drill winch 29 is connected to the ends of the left auxiliary drill 23 and the right auxiliary drill 24 via steel wire ropes. The left auxiliary drill 23 and the right auxiliary drill 24 are respectively connected to the front end of the ship body 1 via hinges. The dredging trolley 25 includes a spiral cutter auger shaft 251, a brush 252, a high-pressure nozzle 253, and a submersible pulverizing pump 254. The spiral cutter auger shaft 251 is horizontally installed at the front end of the dredging trolley 25. The brush 252 is fixedly installed horizontally at the center of the dredging trolley 25. The high-pressure nozzle 253 is fixedly installed at the rear end of the dredging trolley 25. The submersible pulverizing pump 254 is vertically installed above the brush 252. The hydrogen containment system includes a hydrogen storage tank 31 and a hydrogen refueling system. The vessel includes a hydrogen refueling pipeline 32 and a hydrogen supply pipeline 33. The hydrogen storage tank 31 is installed above the deck of the vessel hull 1. The end of the hydrogen refueling pipeline 32 is connected to the refueling port of the hydrogen storage tank 31. One end of the hydrogen supply pipeline 33 is connected to the output port of the hydrogen storage tank 31, and the other end is connected to the fuel input of the hydrogen fuel cell system. The hydrogen fuel cell system includes a hydrogen fuel cell stack 41, a DC busbar system distribution cabinet 42, and an energy bridge 43. All three components are fixedly installed within the fuel cell compartment 11. The lithium battery system includes a battery pack 51, a battery management system 52, a high-voltage cluster box 53, and a combiner cabinet 54.The battery pack 51 is fixedly installed inside the lithium battery compartment 12. The battery management system 52, the high-voltage box 53, and the combiner cabinet 54 are all fixedly installed inside the lithium battery compartment 12 and arranged adjacent to the battery pack 51. The propulsion system includes a left thruster 61 and a right thruster 62, which are symmetrically fixedly installed at the stern of the ship body 1. The monitoring system includes a suspended fine particulate sludge identification device 71, an underwater suspended sludge distribution measurement device 72, an underwater topography detection device 73, a fuel cell compartment monitoring device 74, and a lithium battery compartment monitoring device 75. The suspended fine particulate sludge identification device 71, the underwater suspended sludge distribution measurement device 72, and the underwater topography detection device 73 are installed inside the lithium battery compartment 12. The fuel cell compartment monitoring device 74 is installed in the fuel cell compartment 11, and the lithium battery compartment monitoring device 75 is installed in the lithium battery compartment 12. The fire suppression system includes a carbon dioxide cylinder group 81, a carbon dioxide release pipeline, and release nozzles. The carbon dioxide cylinder group 81 is fixedly installed in the carbon dioxide compartment 13. One end of the carbon dioxide release pipeline is sealed to the output port of the carbon dioxide cylinder group 81, and the other end of the carbon dioxide release pipeline branches out and extends into the interior of the fuel cell compartment 11 and the lithium battery compartment 12 to connect with the release nozzles. Other auxiliary systems include a driving system 91, a satellite positioning system 92, a mooring system 93, a detachable fender 94, a hoisting device, and a ship-to-shore transfer device. 95. A left filter device 151 is installed in the middle of the left mud chamber 15. A left tailwater pump 152 and a left mud pump 153 are installed at the front and rear of the left mud chamber 15, respectively. The right filter device 161, right tailwater pump 162, and right mud pump 163 in the right mud chamber 16 are symmetrically installed with their corresponding devices in the left mud chamber 15. The left filter device 151 and the right filter device 161 intercept solid particles in the mud-water mixture through their respective internal filtration structures. The left tailwater pump 152 and the right tailwater pump 162 are connected to their respective tailwater outlets 104 through pipes. The left mud pump 153 and the right mud pump 163 are connected to their respective suction ports 103 through pipes. The tilt angle range of the left main drill rod 21 and the right main drill rod 22 is -6° to 70°. When the tilt angle of the left main drill rod 21 and the right main drill rod 22 is -6°, the left movable deck 101 and the right movable deck 102 are flipped upwards to disassemble and assemble the dredging trolley 25. The working depth range of the left main drill rod 21 and the right main drill rod 22 is 0 to 8m. The tilt angle range of the left auxiliary drill rod 23 and the right auxiliary drill rod 24 is 0° to 85°. The dredging trolley 25 is detachably installed at the ends of the left main drill rod 21, the right main drill rod 22, the left auxiliary drill rod 23, and the right auxiliary drill rod 24 through a connecting mechanism. The hydrogen fuel cell stack 41 generates electrical energy through hydrogen supplied by the hydrogen supply pipeline 33. The fuel cell stack is started by the electricity in the battery pack 51.The electricity generated by the fuel cell stack and the remaining power of the battery pack 51 are fed into the DC busbar system distribution cabinet 42 after peak shaving and valley filling by the energy bridge 43 to produce a stable current. The left thruster 61 and the right thruster 62 are both electrically connected to the DC busbar system distribution cabinet 42 via cables. The left thruster 61 and the right thruster 62 receive power from the DC busbar system distribution cabinet 42 to provide propulsion power for the ship. The suspended fine particulate sludge identification device 71, the underwater suspended sludge distribution measurement device 72, and the underwater topography detection device 73 collect water quality conditions, sludge state, and underwater topography information, and the information is transmitted to the shore via the ship-to-shore transmission device 95. The fuel cell compartment monitoring device 74 and the lithium battery compartment monitoring device 75 detect in real time... The ship automatically activates its fire suppression system when an anomaly is detected, including the temperature and smoke levels in the corresponding compartments. Carbon dioxide cylinder group 81 opens, releasing carbon dioxide gas through the release pipeline to the release nozzles, which then spray it into the compartments experiencing the anomaly. The driving system 91, satellite positioning system 92, and ship-to-shore transmission device 95 are fixedly installed in the wheelhouse 17. The mooring system 93 is fixedly installed at the four corners of the ship's deck. The detachable fender 94 is installed at the front of the ship's hull 1 via a detachable structure and is located in the area where the ship's hull 1 contacts the dock. The launching device uses a flatbed transport vehicle equipped with a gravity-lift davit, and is detachably connected to the launching points of the ship's hull 1 via slings.

[0037] Example

[0038] a. Transport the vessel to a bridge with good road conditions near the work area, connect the slings of the gravity inverted boom davit on the lifting device to the lifting point of the vessel body 1, start the lifting device to lift the vessel from the lifting device into the water supply channel, and complete the launching of the vessel;

[0039] b. The ship completes its positioning through the satellite positioning system 92, and activates the suspended fine sludge identification device 71, the underwater suspended sludge distribution measurement device 72 and the underwater topography detection device 73 of the monitoring system to conduct a comprehensive automatic scan of the water quality conditions, sludge distribution and underwater topography of the water supply channel. The information obtained by the scan is transmitted to the shore base through the ship-to-shore transmission device 95, and the shore base personnel combine the scan information to plan the operation path and operation parameters.

[0040] c. Based on the type of work area, select either the bottom slope work mode or the side slope work mode, and select the corresponding dredging mode in the driving system 91 of the cab 17; if it is a bottom slope work, start the left main drill winch 26 and the right main drill winch 27, adjust the left main drill 21 and the right main drill 22 to the preset inclination angle, and lower the dredging trolley 25 to the target working depth; if it is a side slope work, start the left auxiliary drill winch 28 and the right auxiliary drill winch 29, adjust the left auxiliary drill 23 and the right auxiliary drill 24 to the preset inclination angle, and lower the dredging trolley 25 to the target working depth;

[0041] d. Start the dredging trolley 25 through the driving system 91. The spiral cutter auger shaft 251 rotates to break up the silt in the channel. The brush 252 simultaneously sweeps the silt attached to the channel wall. The high-pressure nozzle 253 sprays water to wash the silt. The submersible crushing pump 254 starts and pumps the crushed and swept mud-water mixture to the left mud chamber 15 and the right mud chamber 16 through a special conveying pipeline.

[0042] e. After the mud-water mixture enters the left mud tank 15 and the right mud tank 16, it flows through the left filter device 151 and the right filter device 161 for filtration. The filtered tailwater is temporarily stored in the filtration area at the front of the mud tank. The left tailwater pump 152 and the right tailwater pump 162 are started to pump the tailwater out of the ship through the tailwater outlet 104. The filtered mud enters the storage area at the rear of the mud tank for temporary storage.

[0043] f. After the dredging operation is completed according to the planned route, stop the dredging trolley 25 and the propulsion system, and retrieve the drill rod and dredging trolley 25 by the drill rod winch; sail the vessel to the designated unloading area, complete the mooring and fixing through the mooring system 93, start the left mud pump 153 and the right mud pump 163, and pump the mud from the storage area to the shore or mud receiving device through the mud suction port 103 to complete the unloading;

[0044] g. After all operations are completed, the vessel will be driven to the bridge where it was launched, all systems will be shut down, and the vessel will be lifted off the water and placed on a flatbed transport vehicle using the gravity-lifting davit on the launching device, thus completing the launching of the vessel.

[0045] The above description is only a preferred 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 within the protection scope of the present invention.

Claims

1. A hydrogen fuel-powered dredging vessel for water supply channels, characterized in that, The hydrogen fuel cell-powered dredging vessel includes a hull, a drill bit operation system, a hydrogen containment system, a hydrogen fuel cell system, a lithium battery system, a propulsion system, a monitoring system, a fire protection system, and other auxiliary systems. The hull includes cabins, a bridge, and a deck. The cabins, longitudinally arranged, consist of a fuel cell compartment, a lithium battery compartment, a carbon dioxide compartment, an equipment compartment, a port mud tank, and a starboard mud tank. The bridge is located above the deck. The deck includes a port movable deck, a starboard movable deck, a sludge suction port, and a tailwater outlet. The port and starboard movable decks are respectively installed on opposite sides of the bottom of the hull. The sludge suction ports are located in the middle of the deck, and the tailwater outlets are located on the port... The mud tank and the front end of the right mud tank, the drill bit operation system includes a left main drill bit winch, a right main drill bit winch, a left main drill bit, a right main drill bit, a left auxiliary drill bit winch, a right auxiliary drill bit winch, a left auxiliary drill bit, a right auxiliary drill bit, and a dredging trolley. The left main drill bit winch and the right main drill bit winch are respectively connected to the ends of the left main drill bit and the right main drill bit via steel wire ropes. The left main drill bit and the right main drill bit are respectively connected to both sides of the vessel body via hinges. The left auxiliary drill bit winch and the right auxiliary drill bit winch are respectively connected to the ends of the left auxiliary drill bit and the right auxiliary drill bit via steel wire ropes. The left auxiliary drill bit and the right auxiliary drill bit are respectively connected to the front end of the vessel body via hinges. The dredging trolley includes a auger shaft, a brush, a high-pressure nozzle, and a submersible pulverizing pump. The spiral cutter auger shaft is horizontally mounted inside the front end of the dredging trolley. The brush is fixedly mounted horizontally at the center inside the dredging trolley. The high-pressure nozzle is fixedly mounted inside the rear end of the dredging trolley. The submersible pulverizing pump is vertically mounted above the brush. The hydrogen containment system includes a hydrogen storage tank, a hydrogen refueling pipeline, and a hydrogen supply pipeline. The hydrogen storage tank is installed above the deck of the vessel. The end of the hydrogen refueling pipeline is connected to the refueling port of the hydrogen storage tank. One end of the hydrogen supply pipeline is connected to the output port of the hydrogen storage tank, and the other end of the hydrogen supply pipeline is connected to the fuel input of the hydrogen fuel cell system. The hydrogen fuel cell system includes a hydrogen fuel cell stack and a DC bus. The hydrogen fuel cell stack, DC busbar system power distribution cabinet, and energy bridge are all fixedly installed inside the fuel cell compartment. The lithium battery system includes a battery pack, a battery management system, a cluster high-voltage box, and a combiner cabinet. The battery pack is fixedly installed inside the lithium battery compartment, and the battery management system, cluster high-voltage box, and combiner cabinet are all fixedly installed inside the lithium battery compartment and arranged adjacent to the battery pack. The propulsion system includes a left thruster and a right thruster, which are symmetrically fixedly installed at the stern of the ship. The monitoring system includes a suspended fine particulate sludge identification device, an underwater suspended sludge distribution measurement device, an underwater topography detection device, a fuel cell compartment monitoring device, and a lithium battery compartment monitoring device.The suspended fine sludge identification device, underwater suspended sludge distribution measurement device, and underwater topography detection device are installed in the equipment compartment. The fuel cell compartment monitoring device is installed inside the fuel cell compartment, and the lithium battery compartment monitoring device is installed inside the lithium battery compartment. The fire suppression system includes a carbon dioxide cylinder group, a carbon dioxide release pipeline, and release nozzles. The carbon dioxide cylinder group is fixedly installed inside the carbon dioxide compartment. One end of the carbon dioxide release pipeline is sealed to the output port of the carbon dioxide cylinder group, and the other end of the carbon dioxide release pipeline branches out and extends into the interior of the fuel cell compartment and lithium battery compartment, connecting to the release nozzles. Other auxiliary systems include a driving system, a satellite positioning system, a mooring system, a detachable fender, a hoisting device, and a ship-to-shore transfer device.

2. A hydrogen fuel-powered dredging vessel for water supply channels according to claim 1, characterized in that, The left mud chamber is equipped with a left filter device in the middle of its body. The left tailwater pump and the left mud pump are respectively installed at the front and rear of the left mud chamber. The right filter device, the right tailwater pump, and the right mud pump in the right mud chamber are symmetrically installed with their corresponding devices in the left mud chamber. The left and right filter devices intercept solid particles in the mud-water mixture through their respective internal filtration structures. The left and right tailwater pumps are respectively connected to their respective tailwater outlets through pipes. The left and right mud pumps are respectively connected to their respective mud suction ports through pipes.

3. A hydrogen fuel-powered dredging vessel for water supply channels according to claim 1, characterized in that, The inclination angle between the left and right main drill rods ranges from -6° to 70°. When the inclination angle between the left and right main drill rods is -6°, the left and right movable decks are flipped upwards to disassemble and assemble the dredging trolley. The working depth of the left and right main drill rods ranges from 0 to 8m. The inclination angle between the left and right auxiliary drill rods ranges from 0° to 85°.

4. A hydrogen fuel-powered dredging vessel for water supply channels according to claim 1, characterized in that, The dredging trolley is detachably mounted to the ends of the left main drill rod, right main drill rod, left auxiliary drill rod, and right auxiliary drill rod via a connecting mechanism.

5. A hydrogen fuel-powered dredging vessel for water supply channels according to claim 1, characterized in that, The hydrogen fuel cell stack generates electricity from hydrogen supplied by the hydrogen supply pipeline. The fuel cell stack is started by the power in the battery pack. The power generated by the fuel cell stack and the remaining power in the battery pack are connected to the DC bus system distribution cabinet after peak shaving and valley filling by the energy bridge to generate a stable current.

6. A hydrogen fuel-powered dredging vessel for water supply channels according to claim 1, characterized in that, Both the left and right thrusters are electrically connected to the DC busbar system distribution cabinet via cables. The left and right thrusters receive power from the DC busbar system distribution cabinet to power the ship's propulsion.

7. A hydrogen fuel-powered dredging vessel for water supply channels according to claim 1, characterized in that, The suspended fine sludge identification device, underwater suspended sludge distribution measurement device, and underwater topography detection device collect water quality conditions, sludge state, and underwater topography information, and the information is transmitted to the shore via a ship-to-shore transmission device; the fuel cell compartment monitoring device and lithium battery compartment monitoring device detect the temperature and smoke information of the corresponding compartments in real time. When an anomaly is detected, the ship automatically activates the fire-fighting system, opens the carbon dioxide cylinder group, and releases carbon dioxide gas through the carbon dioxide release pipeline to the release nozzle, which then sprays the gas into the compartment in the abnormal state.

8. A hydrogen fuel-powered dredging vessel for water supply channels according to claim 1, characterized in that, The driving system, satellite positioning system, and ship-to-shore transmission device are fixedly installed in the wheelhouse. The mooring system is fixedly installed at the four corners of the ship's deck. The detachable fender is installed at the front of the ship's body through a detachable structure and is located in the area where the ship's body contacts the dock. The launching device uses a flatbed transport vehicle to carry a gravity-lift davit. The launching device is detachably connected to the lifting points of the ship's body through slings.

9. A hydrogen fuel-powered dredging vessel for water supply channels, characterized in that, The work process is as follows; a. Transport the vessel to a bridge with good road conditions near the work area, connect the slings of the gravity inverted boom davit on the lifting device to the lifting points of the vessel body, start the lifting device to lift the vessel from the lifting device into the water supply channel, and complete the launching of the vessel; b. The ship completes its positioning through the satellite positioning system, and activates the suspended fine sludge identification device, underwater suspended sludge distribution measurement device and underwater topography detection device of the monitoring system to conduct a comprehensive automatic scan of the water quality conditions, sludge distribution and underwater topography of the water supply channel. The information obtained by the scan is transmitted to the shore base through the ship-to-shore transmission device, and the shore base personnel combine the scan information to plan the operation path and operation parameters. c. Select either bottom slope operation mode or side slope operation mode according to the type of work area, and select the corresponding dredging mode in the driving system of the cab; if it is bottom slope operation, start the left main drill winch and the right main drill winch, adjust the left main drill and the right main drill to the preset inclination angle, and lower the dredging trolley to the target working depth; If it is a slope operation, start the left auxiliary drill winch and the right auxiliary drill winch, adjust the left auxiliary drill and the right auxiliary drill to the preset inclination angle, and lower the dredging trolley to the target working depth; d. Start the dredging trolley through the driving system. The spiral cutter auger shaft rotates to break up the silt in the channel. The brushes simultaneously sweep the silt attached to the channel wall. The high-pressure nozzles spray water to wash the silt. The submersible crushing pump starts and pumps the crushed and cleaned mud-water mixture into the left and right mud chambers through a special conveying pipeline. e. After the mud-water mixture enters the left and right mud tanks, it flows through the left and right filtration devices for filtration. The filtered tailwater is temporarily stored in the filtration area at the front of the mud tank. The left and right tailwater pumps are started to pump the tailwater out of the ship through the tailwater outlet. The filtered mud enters the storage area at the rear of the mud tank for temporary storage. f. After the dredging operation is completed according to the planned route, stop the dredging trolley and propulsion system, and retrieve the drill rod and dredging trolley by using the drill rod winch; sail the vessel to the designated unloading area, moor it by the mooring system, start the left and right mud pumps, and pump the mud from the storage area to the shore or mud receiving device through the suction port to complete the unloading. g. After all operations are completed, the vessel will be driven to the bridge where it was launched, all systems will be shut down, and the vessel will be lifted off the water and placed on a flatbed transport vehicle using the gravity-lifting davit on the launching device, thus completing the launching of the vessel.

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