Photovoltaic energy storage deepwater power supply system based on offshore floating platform

Abstract

A photovoltaic energy storage deepwater power supply system based on an offshore floating platform relates to the technical field of deep sea power supply equipment and comprises an overwater power supply platform and underwater detection equipment, a climbing rope is arranged at the bottom of the overwater power supply platform and connected with the underwater detection equipment, and a charging female seat is arranged at the bottom of the overwater power supply platform. The underwater detection equipment comprises a charging male base and a battery bin, the charging male base and the battery bin are connected in a sealed mode, the charging male base is matched with the charging female base, a rope climbing mechanism is arranged on the upper layer of the battery bin and matched with a climbing rope, and automatic climbing charging can be achieved by arranging the underwater detection equipment with the rope climbing mechanism; therefore, deployment detection of different water area depths is realized, a power supply framework does not need to be changed, the energy consumption demand is reduced, the endurance time is prolonged, and the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to a photovoltaic energy storage deep - water power supply system based on an offshore floating platform, and relates to the technical field of deep - sea power supply equipment. Background Art

[0002] The monitoring of the marine environment and the operation and maintenance of deep - sea equipment usually require the cooperation of an offshore platform and deep - sea detection equipment. The offshore platform supplies power to the deep - sea detection equipment, and a winch is set to lower and lift the deep - sea detection equipment.

[0003] The deep - sea detection equipment directly receives power from the surface photovoltaic system through a cable. After collecting data, it is dragged to the water surface by a winch motor for data forwarding and charging. The cable simultaneously undertakes the functions of power supply, communication, and mechanical traction. The deeper the depth, the longer the required cable. The resistance of the power - supply cable increases with the length, resulting in a significant voltage drop (for example, a 24V system may drop to below 16V), which cannot meet the stable operation requirements of sensors and motors. To solve the voltage - drop problem, it is necessary to increase the wire diameter (for example, from 2.5mm 2 increased to 6mm 2 ), which causes the weight of the cable, the material cost, and the load of the winch mechanism to increase exponentially. When the deployment depth further increases (such as 500 meters), the problems of cable weight and voltage drop will exceed the system's load limit, resulting in technical infeasibility. At the same time, frequently dragging the underwater equipment to the surface requires a high - power winch motor, resulting in high energy consumption (for example, the power consumption for a single surfacing accounts for more than 30% of the energy storage battery capacity), shortening the system's endurance period. The cable and the winch mechanism are long - term corroded by seawater and mechanically worn, prone to breakage or jamming failures, and have high maintenance costs, which greatly affects deep - sea monitoring operations. Summary of the Invention

[0004] The purpose of the present invention is to provide a photovoltaic energy storage deep - water power supply system based on an offshore floating platform for the defects or deficiencies in the prior art. By setting an underwater detection device with a rope - climbing mechanism, automatic climbing and charging can be realized, so as to achieve deployment and detection at different water depths, without changing the power - supply architecture, reducing energy - consumption requirements, extending the endurance time, and improving the detection efficiency.

[0005] To achieve the above - mentioned purpose, the present invention adopts the following technical solutions: It includes an offshore power - supply platform 1 and an underwater detection device 2. A climbing rope 3 is arranged at the bottom of the offshore power - supply platform 1 and is connected to the underwater detection device 2. A charging female socket 16 is arranged at the bottom of the offshore power - supply platform 1. The underwater detection device 2 includes a charging male socket 21 and a battery compartment 22. The charging male socket 21 and the battery compartment 22 are hermetically connected. The charging male socket 21 is matched with the charging female socket 16. A rope - climbing mechanism 4 is arranged on the upper layer of the battery compartment 22 and is matched with the climbing rope 3.

[0006] Furthermore, the above-mentioned water power supply platform 1 includes a photovoltaic panel assembly 11, an electrical control box 12, and a water surface floating platform 13. The electrical control box 12 is hermetically connected to the water surface floating platform 13. The photovoltaic panel assembly 11 is installed on the water surface floating platform 13, covers the electrical control box 12, and is electrically connected to the electrical control box 12.

[0007] Furthermore, a charging compartment 18 is arranged in the middle of the water surface floating platform 13. A charging seat 14 is arranged in the charging compartment 18. A guiding cylindrical groove is arranged at the center of the bottom of the charging seat 14. A charging electrode female terminal 17 is arranged in the guiding cylindrical groove. Energy storage batteries 15 are arranged on both sides of the charging compartment 18. The energy storage batteries 15 are electrically connected to the electrical control box 12.

[0008] Furthermore, the charging female seat 16 and the charging male seat 21 are of a conical structure. The charging female seat 16 is located in the charging compartment 18, and the top of the conical part of the charging female seat 16 corresponds to the charging electrode female terminal 17.

[0009] Furthermore, a charging electrode male terminal 23 is arranged in the charging male seat 21. The charging electrode male terminal 23 is matched with the guiding cylindrical groove. A conductive ring 24 is arranged at the top of the charging electrode male terminal 23. The conductive ring 24 is matched with the charging electrode female terminal 17.

[0010] Furthermore, the climbing rope mechanism 4 includes a fixing plate 41. An avoidance groove 46 is arranged in the middle of the fixing plate 41. A first climbing rope motor 42 and a second climbing rope motor 43 are respectively arranged on both sides of the avoidance groove 46. A first climbing rope rubber wheel 44 is arranged at the output end of the first climbing rope motor 42. A second climbing rope rubber wheel 45 is arranged at the output end of the second climbing rope motor 43.

[0011] Furthermore, the climbing rope 3 passes through the outside of the first climbing rope rubber wheel 44, winds around its bottom, passes out from the inside, closely adheres to the top of the second climbing rope rubber wheel 45, and passes out from the outside of the second climbing rope rubber wheel 45.

[0012] Furthermore, a plurality of female terminal mating grooves 171 are arranged in the charging electrode female terminal 17. A plurality of positioning posts 25 corresponding to the female terminal mating grooves 171 are arranged on the conductive ring 24.

[0013] Furthermore, a storage battery, a detection sensor, and a control main board are arranged in the battery compartment 22. The control main board is electrically connected to the charging electrode male terminal 23. The storage battery and the detection sensor are electrically connected to the control main board.

[0014] After adopting the above technical solutions, the beneficial effects of the present invention are as follows: By setting an underwater detection device with a climbing rope mechanism, automatic climbing and charging can be realized, so as to realize the deployment and detection of different water depths, without changing the power supply architecture, reducing the energy consumption demand, extending the endurance time, and improving the detection efficiency. Description of the Drawings

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

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is Figure 1 a second-angle view of

[0018] Figure 3 is Figure 1 a schematic diagram of the state where the photovoltaic panel assembly 11 is removed;

[0019] Figure 4 is a schematic internal structure diagram of the water supply platform 1;

[0020] Figure 5 is a schematic structural diagram of the rope climbing mechanism 4 in the present invention;

[0021] Figure 6 is Figure 1 an enlarged structural diagram at position A in

[0022] Figure 7 is Figure 2 an enlarged structural diagram at position B in

[0023] Figure 8 is a schematic diagram of the disassembled state of the present invention;

[0024] Figure 9 is a schematic diagram of the state of the present invention placed on the water surface.

[0025] Description of reference numerals: water supply platform 1, underwater detection device 2, climbing rope 3, rope climbing mechanism 4, photovoltaic panel assembly 11, electrical control box 12, water surface floating platform 13, charging seat 14, energy storage battery 15, charging mother seat 16, charging electrode mother end 17, charging compartment 18, charging male seat 21, battery compartment 22, charging electrode male end 23, conductive ring 24, positioning post 25, fixing plate 41, first rope climbing motor 42, second rope climbing motor 43, first rope climbing rubber wheel 44, second rope climbing rubber wheel 45. Detailed embodiments

[0026] Refer to Figures 1-9As shown in the figure, the technical solution adopted in this specific embodiment is as follows: It includes an underwater power supply platform 1 and an underwater detection device 2. A climbing rope 3 is provided at the bottom of the underwater power supply platform 1 and is connected to the underwater detection device 2. Traditional detection devices are connected to the underwater platform through cables to achieve power supply, communication, and towing for ascent. This not only results in relatively large power losses, but also the frequent winding and unwinding of the cables easily cause damage to the cables. Moreover, as the depth increases, the voltage drop becomes significant, affecting the normal operation of the devices. At the same time, the weight of the cables, material costs, and the burden on the winches also increase. Therefore, in this embodiment, a self-powered underwater detection device is adopted, eliminating the need to set up a winch to tow the underwater detection device and also eliminating the need for power supply and communication through device cables, greatly reducing the equipment cost;

[0027] When the weak electricity of the underwater detection device needs to be charged, it automatically climbs along the climbing rope to the underwater power supply platform for charging, and at the same time transmits the detection data back to the underwater power supply platform for transmission. The split-type automatic climbing detection device not only has lower power consumption but also less equipment loss. It is no longer restricted by the distance of traditional transmission cables. Only by using climbing ropes of different lengths in cooperation with the underwater detection device can the detection deployment in waters of different depths be achieved;

[0028] In this embodiment, the climbing rope is made of polyurethane composite material with a diameter of 8MM. It will not be corroded even after long-term use in water, has a longer service life, and will not affect the progress of detection work.

[0029] A charging female socket 16 is provided at the bottom of the underwater power supply platform 1. The underwater detection device 2 includes a charging male socket 21 and a battery compartment 22. The charging male socket 21 and the battery compartment 22 are hermetically connected. The charging male socket 21 matches the charging female socket 16. A rope climbing mechanism 4 is provided on the upper layer of the battery compartment 22 and cooperates with the climbing rope 3. In this embodiment, the method of matching male and female charging sockets is adopted to charge the device end, which can effectively pair the devices and ensure the connection accuracy of charging.

[0030] More specifically, the water-based power supply platform 1 includes a photovoltaic panel assembly 11, an electrical control box 12, and a water surface floating platform 13. The electrical control box 12 is hermetically connected to the water surface floating platform 13. The photovoltaic panel assembly 11 is installed on the water surface floating platform 13, covers the electrical control box 12, and is electrically connected to the electrical control box 12. In this embodiment, the water surface floating platform adopts a hollow high-density polyethylene (HDPE) floating drum array to form an annular anti-wave platform to ensure the stability of the water surface equipment. The power supply part adopts a photovoltaic power supply structure, and a photovoltaic MPPT controller is provided in the electrical control box, which can effectively control the input and output of light energy to ensure the light energy conversion efficiency. The photovoltaic panel assembly is composed of multiple photovoltaic panels, which are inclined and installed on the water surface floating platform. In this embodiment, it is shown as four photovoltaic panels, which can achieve omnidirectional light energy absorption. The electrical control box adopts a sealed structure for waterproofing and is also hermetically connected to the water surface floating platform to prevent water from entering the water surface and ensure the stable and normal operation of the equipment. In addition, a wireless transmission module and an integrated control module are also provided in the electrical control box. The data detected by the underwater detection equipment is stored in the storage module in the battery compartment and then transmitted to the integrated control module, and then transmitted through the wireless transmission module. Preferably, it is transmitted through satellite signals.

[0031] More specifically, a charging compartment 18 is provided in the middle of the water surface floating platform 13. A charging seat 14 is provided in the charging compartment 18, and a guiding cylindrical groove is provided at the center of the bottom of the charging seat 14. A charging electrode female terminal 17 is provided in the guiding cylindrical groove. Energy storage batteries 15 are provided on both sides of the charging compartment 18. The energy storage batteries 15 are electrically connected to the electrical control box 12. In this embodiment, the charging process is carried out in the charging compartment. Among them, the energy storage battery at the charging end adopts a 24V / 200Ah lithium iron battery, and the energy storage power supply is more stable and efficient. A guiding cylindrical groove is provided in the charging seat, and a charging electrode female terminal is provided therein, and a waterproof structural member is adopted. The embedded charging structure ensures that it is not affected by the outside during charging.

[0032] More specifically, the charging female seat 16 and the charging male seat 21 are of a conical structure. The charging female seat 16 is located in the charging compartment 18, and the top of the conical part of the charging female seat 16 corresponds to the charging electrode female terminal 17. In this embodiment, the conical structure can achieve good charging guiding cooperation, and the equipment end and the platform end can be smoothly plugged in for charging, and it is not easy to move after connection, ensuring charging stability.

[0033] More specifically, a charging electrode male terminal 23 is provided in the charging male socket 21, and the charging electrode male terminal 23 matches the guide cylindrical groove. A conductive ring 24 is provided on the top of the charging electrode male terminal 23, and the conductive ring 24 matches the charging electrode female terminal 17. In this embodiment, the charging electrode male terminal is provided with a standardized electrical / mechanical interface, and the charging electrode female terminal adopts the same interface, which is easy to connect and transmits data while conducting electricity.

[0034] More specifically, the rope climbing mechanism 4 includes a fixed plate 41, a avoidance groove 46 is arranged in the middle of the fixed plate 41, and a first rope climbing motor 42 and a second rope climbing motor 43 are respectively arranged on both sides of the avoidance groove 46. The output end of the first rope climbing motor 42 is provided with a first rope climbing rubber wheel 44, and the output end of the second rope climbing motor 43 is provided with a second rope climbing rubber wheel 45. In this embodiment, the climbing mechanism realizes the lifting and lowering of the underwater detection equipment through the cooperation of two rope climbing motors and the climbing rope. The rope climbing motor has a built-in motor driver that supports PWM speed regulation and stall protection. The photoelectric encoder arranged therein monitors the motor speed in real time, and a Hall sensor is also arranged. The two cooperate to realize closed-loop control of the motor drive to ensure the accuracy of the lifting and lowering control. When deploying the water area to detect the depth, the detection depth is input, and the lifting distance is controlled by controlling the speed.

[0035] To be more specific, the climbing rope 3 is inserted from the outside of the first climbing rope rubber wheel 44, around its bottom, upward, out from the inside, tightly attached to the top of the second climbing rope rubber wheel 45, and downwardly inserted from the outside of the second climbing rope rubber wheel 45. In this embodiment, the lifting and lowering of the climbing rope mechanism is achieved by twisting the two climbing rope rubber wheels with the climbing rope, and an electromagnetic locating pin is also provided in the climbing rope motor. When it is closed, the motor does not start. When the control signal is sent to open the electromagnetic locating pin, the motor starts and drives the rubber wheel to be placed for lifting and lowering. In the automation program, it is defaulted to float up once every 2 hours for charging. In case of an accident, such as when the battery power is less than 20%, the sensor will detect an abnormality, trigger the electromagnetic locating pin to open, start the motor to float up and charge. During the charging process, the electromagnetic locating pin is locked, and the equipment cannot be detached from the water power supply platform, ensuring the firmness of the charging connection. After charging is completed, the start signal is triggered, the electromagnetic locating pin is opened, and the motor is started to dive. After reaching the specified position, the electromagnetic locating pin is re-locked to complete the positioning of the equipment.

[0036] More specifically, a plurality of female end matching grooves 171 are provided in the charging electrode female end 17, and a plurality of positioning posts 25 are provided on the conductive ring 24 corresponding to the female end matching grooves 171. The setting of the positioning posts and matching grooves is more conducive to the positioning of the connection and ensures good electrical contact.

[0037] More specifically, a storage battery, a detection sensor, and a control main board are provided in the battery compartment 22. The control main board is electrically connected to the male charging electrode 23. The storage battery and the detection sensor are electrically connected to the control main board. In this embodiment, the storage battery in the battery compartment uses a 24V / 30Ah low-temperature-resistant battery to ensure normal power supply of the battery in the deep water area. The control main board is provided with a data acquisition process, which is periodic data acquisition. The acquisition period is set according to the required detection data. After a single acquisition is completed, it enters the low-power mode. The storage battery only maintains the power supply of the main control MCU and the sensor, which is beneficial to extending the battery life. A storage module is also provided on the control main board. Optionally, a storage card slot is also provided to realize double backup of the acquired data and ensure the effectiveness of data storage.

[0038] The working principle of the present invention: Place the water supply platform 1 and the underwater detection device 2 in the water area to be detected. Set the diving depth of the underwater detection device 2 according to the detection needs. Drive the underwater detection device 2 to dive through the rope climbing mechanism 4. The underwater depth can be detected by the detection sensor. At the same time, after reaching the specified depth, feedback information to the control main board, so that the electromagnetic positioning pins of the two rope climbing motors are locked, the motors stop, and the rope climbing rubber wheels are locked, so as to position the underwater detection device 2 at the specified depth. The storage battery in the underwater detection device 2 supplies power to the detection sensor, so that the specified detection operation can be carried out. By default, the electromagnetic positioning pins are activated once every 2 hours, and the rope climbing motors are triggered to start, driving the underwater detection device 2 to climb into the charging compartment 18. When the male charging seat 21 enters the female charging seat 16, the conductive ring 24 contacts the female charging electrode 17, and the positioning post 25 is inserted into the female terminal mating groove 171 to complete the charging connection, and data transmission is carried out at the same time. The detection data is transmitted through the wireless transmission system in the electrical control box 12. The energy storage battery 15 charges the storage battery. After the charging is completed, the rope climbing motor starts, driving the underwater detection device 2 to dive back to the specified position again, and starting the periodic detection again. When each detection work is completed, the control main board and the sensor enter the low-power mode, so that long battery life can be achieved. Since the underwater detection device 2 does not require external equipment for stretching, the use of external equipment is greatly reduced, the power consumption is reduced, and the use cost and maintenance cost are reduced.

[0039] The above is only used to illustrate the technical solution of the present invention and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A photovoltaic energy storage deep - water power supply system based on an offshore floating platform, characterized in that: It includes a water-based power supply platform (1) and an underwater detection device (2). A climbing rope (3) is provided at the bottom of the water-based power supply platform (1) and is connected to the underwater detection device (2). A charging female socket (16) is provided at the bottom of the water-based power supply platform (1). The underwater detection device (2) includes a charging male socket (21) and a battery compartment (22). The charging male socket (21) and the battery compartment (22) are hermetically connected. The charging male socket (21) is matched with the charging female socket (16). A climbing rope mechanism (4) is provided on the upper layer of the battery compartment (22) and is matched with the climbing rope (3).

2. The photovoltaic energy storage deep - water power supply system based on an offshore floating platform according to claim 1, wherein: The water-based power supply platform (1) includes a photovoltaic panel assembly (11), an electrical control box (12), and a water surface floating platform (13). The electrical control box (12) is hermetically connected to the water surface floating platform (13). The photovoltaic panel assembly (11) is installed on the water surface floating platform (13) and covers the electrical control box (12) and is electrically connected to the electrical control box (12).

3. A photovoltaic energy storage deep - water power supply system based on an offshore floating platform according to claim 1, wherein: A charging compartment (18) is provided in the middle of the water surface floating platform (13). A charging seat (14) is provided in the charging compartment (18). A guiding cylindrical groove is provided at the center of the bottom of the charging seat (14). A charging electrode female terminal (17) is provided in the guiding cylindrical groove. Energy storage batteries (15) are provided on both sides of the charging compartment (18). The energy storage batteries (15) are electrically connected to the electrical control box (12).

4. A photovoltaic energy storage deep - water power supply system based on an offshore floating platform according to claim 1, wherein: The charging female socket (16) and the charging male socket (21) are of a conical structure. The charging female socket (16) is located in the charging compartment (18), and the charging female socket (16) is corresponding to the charging electrode female terminal (17) above the top of the conical part.

5. The photovoltaic energy storage deep - water power supply system based on an offshore floating platform according to claim 1, wherein: A charging electrode male terminal (23) is provided in the charging male socket (21). The charging electrode male terminal (23) is matched with the guiding cylindrical groove. A conductive ring (24) is provided at the top of the charging electrode male terminal (23). The conductive ring (24) is matched with the charging electrode female terminal (17).

6. The photovoltaic energy storage deep - water power supply system based on an offshore floating platform according to claim 1, wherein: The climbing rope mechanism (4) includes a fixing plate (41). An avoidance groove (46) is provided in the middle of the fixing plate (41). A first climbing rope motor (42) and a second climbing rope motor (43) are respectively provided on both sides of the avoidance groove (46). A first climbing rope rubber wheel (44) is provided at the output end of the first climbing rope motor (42). A second climbing rope rubber wheel (45) is provided at the output end of the second climbing rope motor (43).

7. A photovoltaic energy storage deep - water power supply system based on an offshore floating platform according to claim 1, wherein: The climbing rope (3) passes through the outside of the first climbing rope rubber wheel (44), winds around its bottom, passes out from the inside, closely adheres to the top of the second climbing rope rubber wheel (45), and passes out from the outside of the second climbing rope rubber wheel (45) downward.

8. A photovoltaic energy storage deep - water power supply system based on an offshore floating platform according to claim 3, characterized in that: A number of female terminal mating grooves (171) are provided in the charging electrode female terminal (17). A number of positioning posts (25) are provided on the conductive ring (24) and are corresponding to the female terminal mating grooves (171).

9. A photovoltaic energy storage deep - water power supply system based on an offshore floating platform according to claim 1, wherein: A storage battery, a detection sensor, and a control main board are provided in the battery compartment (22). The control main board is electrically connected to the charging electrode male terminal (23). The storage battery and the detection sensor are electrically connected to the control main board.

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