Deep sea resource collection and energy supply device with variable buoyancy

Abstract

The invention relates to the technical field of deep sea energy supply and mining equipment, in particular to a deep sea resource collection and energy supply device with variable buoyancy. Comprising a device body, an annular air bag device, a multi-stage pressure balancing device, four sets of fan blade assemblies, an annular underwater equipment charging cabin, a resource collecting cabin, a CO2 thermodynamic cycle power generation device, an intelligent monitoring and regulating system and an exhaust port of a multi-stage throttling valve structure. The arrangement mode of the air bags can better adapt to high water pressure and complex terrains in the deep sea environment, and the stability and reliability of the device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of deep - sea energy supply and mining equipment, and specifically relates to a deep - sea resource collection and energy supply device with variable buoyancy. Background Art

[0002] With the in - depth development of resources, deep - sea resource collection operations have become the focus of global attention. However, the energy supply problem of underwater power equipment seriously restricts the efficiency of deep - sea resource collection. The traditional method of relying on surface ships for regular supply is inefficient and greatly affected by sea conditions and weather, and cannot meet the needs of underwater equipment for long - term continuous operation.

[0003] Some deep - sea energy supply technologies have many defects. The installation and maintenance of fixed or semi - fixed energy supply stations are complex and difficult to adapt to the complex changes in the deep - sea environment. Traditional energy supply devices in the deep - sea high - pressure environment have inflexible buoyancy adjustment, poor reliability, low energy utilization efficiency, and pose great safety hazards and energy waste. For example, in some designs that use a centralized airbag structure to adjust buoyancy, when a local airbag is damaged or fails, it is easy to cause the buoyancy imbalance of the device, increasing the operation risk. In terms of energy utilization, the problem of by - product utilization in carbon dioxide thermal cycle power generation in the deep - sea high - pressure environment needs to be solved urgently. There are also deficiencies in the charging cabin design. Existing charging cabins are mostly simple fixed - type structures, with low charging efficiency, difficult to charge multiple mine cars simultaneously, low space utilization rate, resulting in a large volume of the device, increasing the difficulty and cost of deep - sea operations. Moreover, the traditional wired charging method is easily interfered by the deep - sea environment, with unstable charging and safety hazards. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a deep - sea resource collection and energy supply device with variable buoyancy.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A deep - sea resource collection and energy supply device with variable buoyancy, comprising:

[0006] A device main body, made of high - strength corrosion - resistant alloy material, axially divided into a power generation cabin, an energy storage cabin, and an ore collection cabin inside;

[0007] An annular airbag device, evenly surrounding the device main body, rigidly connected to the device main body through a flange interface, the airbag is made of composite material and includes a retractable fold structure and a shape - memory alloy support framework;

[0008] A multi - stage pressure balance device, including a mechanical differential pressure valve and an electro - controlled proportional valve, respectively installed at the connection flange between the airbag and the device main body;

[0009] Four groups of fan blade assemblies are orthogonally and symmetrically distributed at the top, bottom, and both side ends of the device main body. Each group of fan blades includes titanium alloy blades and a servo-driven rotating shaft;

[0010] An annular underwater equipment charging cabin is embedded in the sandwich space between the outer wall of the device main body and the airbag. The copper-based wireless charging coil array is provided on the vehicle-carrying plate in the cabin;

[0011] The resource collection cabin is located in the central axis area inside the device main body and is connected to a belt conveyor mechanism. Anti-slip protrusions are provided on the surface of the conveyor belt;

[0012] The CO2 thermal cycle power generation device is installed in the power generation cabin and is connected to a fuel tank, an air tank, and an exhaust tank through high-pressure-resistant pipelines;

[0013] The intelligent monitoring and control system integrates a pressure sensor, a temperature sensor, a liquid level sensor, and an emergency control unit;

[0014] The exhaust port with a multi-stage throttle valve structure has an inner wall of the valve body coated with a corrosion-resistant tungsten carbide coating and is connected to the exhaust tank through a bellows compensator.

[0015] Preferably, the telescopic and wrinkled structure of the airbag device drives the device to float when inflated and retracts into the device main body when contracted; the shape memory alloy support framework provided on the inner layer of the airbag automatically maintains the shape stability of the airbag under the deep-sea high-pressure environment.

[0016] Preferably, in the multi-stage pressure balance device, the mechanical differential valve is used to adjust the pressure difference between the inside and outside of the airbag at normal depths, and the electronically controlled proportional valve is linked with the intelligent monitoring and control system to dynamically adjust the gas pressure inside the airbag in an extremely high-pressure environment.

[0017] Preferably, the opening rate of the valve core of the exhaust port is negatively correlated with the floating speed, and the waste gas emission is dynamically controlled through an intelligent algorithm to ensure a stable speed during the floating process.

[0018] Preferably, the wireless charging coil of the underwater equipment charging cabin is designed as a multi-band adaptive array type, and is frequency-matched with the receiving end of the underwater power device through magnetic coupling resonance to achieve non-contact and efficient charging.

[0019] Preferably, the waste gas of the CO2 thermal cycle power generation device is discharged into the exhaust tank through a high-pressure-resistant pipeline and is selectively injected into the airbag device through the intelligent control system to assist in buoyancy adjustment.

[0020] Preferably, the emergency control unit of the intelligent monitoring and control system includes:

[0021] An overspeed floating protection module automatically opens the exhaust port and starts the reverse braking of the fan blades when the acceleration limit is exceeded;

[0022] The pressure imbalance compensation module calls the air tank to reserve gas to preferentially compensate for the pressure difference imbalance of the airbag.

[0023] Preferably, the belt conveyor mechanism of the resource collection cabin includes:

[0024] A polyurethane-ceramic composite conveyor belt with an anti-slip convex structure on the surface;

[0025] A hydraulic drive roller group with involute tooth profiles for the teeth;

[0026] A spring-screw composite tensioning device to compensate for the deformation of the conveyor belt in real time.

[0027] Preferably, the servo-driven rotating shaft of the fan blade assembly responds to the instructions of the intelligent monitoring and control system, and adjusts the attitude control and movement direction of the device by adjusting the blade angle and speed.

[0028] Preferably, a modular battery pack is provided in the energy storage cabin, and the electric energy is distributed to the wireless charging coil, the fan blade assembly and the monitoring system through the intelligent control system, and a redundant power supply mode is supported.

[0029] The beneficial effects of the present invention are: (1) The airbags are arranged in a circular surrounding manner around the periphery of the device main body, forming a closed circular structure. This arrangement can evenly distribute the airbags around the device main body, provide uniform buoyancy for the device, and is also conducive to the inflation and deflation operations of the airbags, facilitating the floating and sinking of the device. Compared with the traditional airbag arrangement method, the airbag arrangement method of the present invention can better adapt to the high water pressure and complex terrain in the deep sea environment, and improves the stability and reliability of the device

[0030] (2) The CO2 thermodynamic cycle power generation technology is adopted to improve the efficiency and reliability of energy supply, and solves the problems of low energy transmission efficiency and limited endurance of traditional energy supply methods.

[0031] (3) The underwater equipment charging cabin is a circular cavity structure, embedded in the sandwich space between the outer wall of the device main body and the airbag, and a copper-based wireless charging coil array is provided on the surface of the vehicle-carrying plate in the cabin. This design makes full use of the space of the device and realizes efficient wireless charging of underwater equipment. Compared with the traditional charging method, the wireless charging method of the present invention has higher charging efficiency and better safety

[0032] (4) The present invention adds a set of all-round intelligent monitoring and control system, which integrates pressure sensors, temperature sensors, liquid level sensors and emergency control units, and real-time monitors the internal and external environmental parameters of the device and automatically performs buoyancy adjustment, exhaust control and fault emergency response. This intelligent design can ensure the safe and stable operation of the device in the deep sea environment, and improves the reliability and service life of the device. Description of the Drawings

[0033] Figure 1 Side view of the structure of the present invention;

[0034] Figure 2 Top view of the structure of the present invention. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0036] Next, in conjunction with Figure 1 the algorithm process and principle will be described.

[0037] A deep-sea resource collection and energy supply device with variable buoyancy mainly consists of components such as an airbag 1, an underwater equipment charging cabin 2, a resource collection cabin 3, a storage battery 4, an exhaust tank 5, a fan blade 6, an air tank 7, a CO2 thermal cycle power generation device 8, a fuel tank 9, an exhaust port 10, a pipeline 11 for supplying power to the underwater equipment charging cabin, a pipeline 12 for exhausting air for the airbag, and an intelligent monitoring and control system. The main body of the device is a cylindrical structure made of high-strength corrosion-resistant alloy material, and is axially divided into a power generation cabin, an energy storage cabin, and an ore collection cabin inside; the airbag device 1 is arranged in a circular surrounding manner and evenly distributed around the main body of the device to form a closed circular structure. The airbag is made of composite material and is rigidly connected to the outer wall of the main body of the device through a flange interface; a multi-stage pressure balancing device, including a mechanical differential pressure valve and an electronically controlled proportional valve, is respectively installed at the connecting flange between the airbag and the main body of the device; four groups of fan blade assemblies 6 are orthogonally symmetrically distributed on the top, bottom, and both side end faces of the main body of the device. Each group of fan blades includes titanium alloy blades and a servo-driven rotating shaft; the underwater equipment charging cabin 2 is a circular cavity structure embedded in the sandwich space between the outer wall of the main body of the device and the airbag. The surface of the vehicle-carrying plate in the cabin is provided with a copper-based wireless charging coil array; the resource collection cabin 3 is located in the central axis area inside the main body of the device. The cabin body is provided with an anti-blocking inlet and a sealed outlet, and a belt conveyor mechanism is connected to the lower part. The surface of the conveyor belt is provided with anti-slip protrusions, and a wear-resistant and corrosion-resistant pulley structure is adopted; the CO2 thermal cycle power generation device 8 is installed in the power generation cabin and is connected to the fuel tank 9, the air tank 7, and the exhaust tank 5 through high-pressure-resistant pipelines; the intelligent monitoring and control system runs through the whole device, integrating a pressure sensor, a temperature sensor, a liquid level sensor, and an emergency control unit, and real-time monitors the internal and external environmental parameters of the device and automatically executes buoyancy adjustment, exhaust control, and fault emergency response; the exhaust port 10 is installed on the outside of the main body of the device, and a bellows compensator is arranged between it and the exhaust tank, and they are connected through high-pressure-resistant and corrosion-resistant pipelines.

[0038] The airbag device 1 includes a retractable pleated structure, and a shape memory alloy support framework is arranged inside the airbag. When the airbag works, the airbag device is opened, and the airbag expands to drive the equipment to float upward. When the airbag is recovered, the equipment is taken in and the airbag device is closed. The multi-stage pressure balance device includes a primary pressure balance unit, which adopts a mechanical differential pressure valve and is used to adjust the pressure difference between the inside and outside of the airbag at a conventional depth (<3000 meters); a secondary pressure balance unit, which adopts an electronically controlled proportional valve and is linked with the intelligent monitoring and control system to adjust the gas pressure inside the airbag in an extremely high-pressure environment.

[0039] The wireless charging transmitting coil in the underwater equipment charging compartment 2 is designed as a multi-band adaptive array and is embedded in the carrier board of the underwater equipment charging compartment, matching the magnetic coupling resonance frequency of the receiving end.

[0040] The exhaust port 10 adopts a multi-stage throttle valve structure, the inner wall of the valve body is coated with a corrosion-resistant tungsten carbide coating, and the opening rate of the valve core is negatively correlated with the floating speed, and the waste gas emission is dynamically controlled through an intelligent algorithm.

[0041] The CO2 thermodynamic cycle power generation device 8 is powered by the fuel tank 9 and the air tank 7. The generated electric energy is stored in the storage battery 4. The generated waste gas is discharged into the exhaust tank 5, and non-contact charging is achieved through the wireless charging transmitting coil and the receiving end of the underwater power device, improving the charging safety and charging efficiency.

[0042] The emergency control unit in the intelligent monitoring and control system includes an overspeed floating protection module. When it is detected that the floating acceleration is too large, the exhaust port 10 is automatically opened and the fan blade reverse braking is started; a pressure imbalance compensation module. When the pressure difference between the inside and outside of the airbag exceeds the threshold value, the reserved gas in the air tank 7 is preferentially called to carry out pressure compensation.

[0043] The resource collection compartment 3 includes a polyurethane-ceramic composite conveyor belt with anti-slip convex structures on the surface; a hydraulic drive roller group with involute tooth profiles for the teeth; and a spring-screw compound tensioning device for compensating the deformation of the conveyor belt in real time.

[0044] Working principle:

[0045] The device freely sinks to the deep-sea environment without external driving force. During the sinking process, the airbag device is in a contracted state, which can ensure that the device quickly sinks to the predetermined depth. The fan blade assembly adjusts the direction and speed according to the instructions of the intelligent monitoring and control system to control the sinking direction and speed of the device. At the same time, the CO2 thermodynamic cycle power generation device is started, and the fuel tank and the air tank provide fuel sources for the power generation device. The electric energy generated by the power generation device is stored in the storage battery. During the charging process, the waste gas generated by the power generation device enters the exhaust tank.

[0046] When the device sinks to a predetermined depth and successfully docks with the underwater power device, the underwater equipment enters the charging chamber and powers the underwater power device through a wireless charging transmitting coil. The intelligent monitoring and control system monitors the internal and external environmental parameters of the device in real time to ensure the stability and safety of the power generation process. The wireless charging coil array in the charging chamber of the underwater equipment and the receiving end of the underwater power device achieve non-contact charging through magnetic induction coupling, with high charging efficiency and good safety. At this time, the resource collection chamber is in a standby state, ready to receive the collected ore. The fan blade assembly adjusts the direction and speed according to the instructions of the intelligent monitoring and control system to ensure the stability of the device during the docking process. The exhaust port is in a closed state to prevent seawater from entering the interior of the device.

[0047] After the power device finishes charging and leaves, the device starts the recovery program. On the one hand, the device receives the collected ore in the resource collection chamber and sends the ore to the water surface through a belt conveyor mechanism. The anti-blocking inlet and sealed outlet of the resource collection chamber ensure the smooth progress of the ore collection process. The conveyor belt surface of the belt conveyor mechanism is provided with anti-slip protrusions and adopts a wear-resistant and corrosion-resistant pulley structure, which can efficiently convey the ore. On the other hand, the airbag device opens, the airbag expands, and drives the equipment to float. The multi-stage pressure balance device automatically adjusts the gas pressure according to the pressure difference inside and outside the airbag to ensure the stability of the airbag. The exhaust port dynamically controls the exhaust gas emission according to the floating speed to ensure the stable floating speed of the device. The fan blade assembly adjusts the direction and speed according to the instructions of the intelligent monitoring and control system to control the floating direction of the device. The intelligent monitoring and control system monitors the various parameters of the device in real time. Once an abnormality is detected, it immediately issues an alarm and automatically starts the corresponding emergency measures to ensure the safe recovery of the device.

[0048] During the operation of the device, the intelligent monitoring and control system monitors the internal and external environmental parameters of the device in real time. Once an abnormality is detected, it immediately issues an alarm and automatically starts the corresponding emergency measures. For example, when the monitored upward acceleration is too large, the exhaust port is automatically opened and the fan blades are reverse-braked to ensure the stable floating speed of the device; when the pressure difference inside and outside the airbag exceeds the threshold, the reserved gas in the air tank is preferentially called for pressure compensation to ensure the stability of the airbag. During the emergency handling process, all components work together to ensure the safe operation of the device.

[0049] When the deep-sea mining vehicle needs to be recharged again, the above operations can be repeated.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A deep-sea resource collection and energy supply device with variable buoyancy, characterized in that: Comprising: A device main body, made of high-strength corrosion-resistant alloy material, axially divided into a power generation cabin, an energy storage cabin and an ore collection cabin inside; An annular airbag device, evenly surrounding the device main body, rigidly connected to the device main body through a flange interface, the airbag is made of composite material and contains a telescopic folding structure and a shape memory alloy support framework; A multi-stage pressure balance device, including a mechanical differential pressure valve and an electronically controlled proportional valve, respectively installed at the connection flange between the airbag and the device main body; Four groups of fan blade assemblies, orthogonally symmetrically distributed at the top, bottom and both side end faces of the device main body, each group of fan blades includes titanium alloy blades and a servo-driven rotating shaft; An annular underwater equipment charging cabin, embedded in the sandwich space between the outer wall of the device main body and the airbag, and the vehicle-carrying board in the cabin is provided with a copper-based wireless charging coil array; A resource collection cabin, located in the central axis area inside the device main body, connected to a belt conveyor mechanism, and the surface of the conveyor belt is provided with anti-slip protrusions; A CO2 thermodynamic cycle power generation device, installed in the power generation cabin, connected to a fuel tank, an air tank and an exhaust tank through high-pressure-resistant pipelines; An intelligent monitoring and control system, integrating a pressure sensor, a temperature sensor, a liquid level sensor and an emergency control unit; An exhaust port with a multi-stage throttle valve structure, the inner wall of the valve body is coated with a corrosion-resistant tungsten carbide coating, and is connected to the exhaust tank through a bellows compensator.

2. The device according to claim 1, characterized in that: The telescopic folding structure of the airbag device drives the device to float when expanding, and retracts into the device main body when contracting; the shape memory alloy support framework arranged on the inner layer of the airbag automatically maintains the shape stability of the airbag under the deep-sea high-pressure environment.

3. The device according to claim 1, characterized in that: In the multi-stage pressure balance device, the mechanical differential pressure valve is used to adjust the pressure difference between the inside and outside of the airbag at normal depths, and the electronically controlled proportional valve is linked with the intelligent monitoring and control system to dynamically adjust the gas pressure inside the airbag under extremely high-pressure environments.

4. The device according to claim 1, characterized in that: The opening rate of the valve core of the exhaust port is negatively correlated with the floating speed, and the waste gas emission is dynamically controlled through an intelligent algorithm to ensure a stable speed during the floating process.

5. The device according to claim 1, characterized in that: The wireless charging coil of the underwater equipment charging cabin is designed as a multi-band adaptive array type, and is frequency-matched with the receiving end of the underwater power device through magnetic coupling resonance to achieve non-contact high-efficiency charging.

6. The device according to claim 1, wherein: The waste gas of the CO2 thermodynamic cycle power generation device is discharged into the exhaust tank through a high-pressure-resistant pipeline, and is selectively injected into the airbag device through the intelligent control system to assist in buoyancy adjustment.

7. The device according to claim 1, characterized in that: The emergency control unit of the intelligent monitoring and control system includes: An overspeed floating protection module, automatically opening the exhaust port and starting the reverse braking of the fan blades when the acceleration limit is detected; A pressure imbalance compensation module, calling the reserved gas in the air tank to preferentially compensate for the pressure difference imbalance of the airbag.

8. The device according to claim 1, characterized in that: The belt conveyor mechanism of the resource collection cabin includes: A polyurethane-ceramic composite conveyor belt, with an anti-slip protrusion structure on the surface; A hydraulic drive roller group, the gear teeth of which are designed with involute tooth profiles; A spring-screw composite tensioning device, compensating for the deformation of the conveyor belt in real time.

9. The device according to claim 1, characterized in that: The servo-driven rotating shaft of the fan blade assembly responds to the instructions of the intelligent monitoring and control system, and realizes the attitude control and movement direction adjustment of the device by adjusting the blade angle and speed.

10. The device according to claim 1, wherein: A modular battery pack is arranged in the energy storage cabin, and the electric energy is distributed to the wireless charging coil, the fan blade assembly and the monitoring system through the intelligent control system, and supports a redundant power supply mode.

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