Underwater power supplementing device

Abstract

The invention belongs to the technical field of marine equipment power supply, and relates to an underwater power supplementing device applied to underwater navigation equipment. The device comprises a sealed pressure-bearing cabin, a diesel generator used for generating electricity, a folding air inlet unit used for providing air for the diesel generator, an exhaust unit used for exhausting waste gas generated by electricity generation of the diesel generator, and a rigid water collecting unit used for collecting seawater flowing into the diesel generator from the folding air inlet unit and the exhaust unit. The control module is used for controlling the diesel generator to start and stop. Through the sealed pressure-bearing cabin, the folding air inlet unit, the rigid water collecting unit and the exhaust unit, necessary conditions are provided for work of the diesel generator, power energy of the underwater navigation equipment can be charged for multiple times, and the cruising ability of the underwater navigation equipment is improved.

Description

Technical Field

[0001] This application belongs to the technical field of marine equipment. Specifically, it relates to an underwater power replenishment device. Background Art

[0002] With the rapid development of ocean engineering, the demand for underwater navigation equipment in fields such as ocean environmental monitoring and resource exploration is increasing continuously. Underwater navigation equipment (such as: autonomous underwater vehicles (abbreviation: AUV), underwater robots, etc.) has become a key equipment for exploring the ocean.

[0003] Most traditional underwater navigation equipment uses single-battery energy as the power source. Battery energy has the advantages of small volume, light weight, and no pollution, but its energy density is limited and the endurance ability is insufficient. With the continuous improvement of the requirements for the detection depth and navigation duration of underwater navigation equipment, the limitations of single-battery energy are becoming increasingly prominent. For example, in deep-sea exploration missions, underwater navigation equipment needs to stay underwater for a long time, and it cannot continue to work after the battery runs out, resulting in mission interruption and affecting the detection efficiency and data integrity. Therefore, it is necessary to design an underwater power replenishment device to charge the power sources such as the batteries of underwater navigation equipment to meet the power requirements of underwater vehicles in complex missions such as deep-sea exploration. Summary of the Invention

[0004] In view of the above deficiencies in the prior art, this application provides an underwater power replenishment device with a compact structure and small volume, which can recharge the power sources of underwater navigation equipment multiple times and improve the endurance ability of underwater navigation equipment.

[0005] To achieve the above object, in the first aspect of this application, an underwater power replenishment device is provided, and its steps are as follows: Sealed pressure-bearing cabin; Diesel generator, arranged inside the sealed pressure-bearing cabin, used for generating electricity to charge the power source of the underwater navigation equipment; Folding air intake unit, connecting the internal space and the external space of the sealed pressure-bearing cabin; the first air intake pipeline of the folding air intake unit located inside the sealed pressure-bearing cabin connects the air outlet pipe and the water collecting pipe, and the air outlet of the air outlet pipe is connected to the internal space of the sealed pressure-bearing cabin; a first air intake solenoid valve is arranged on the first air intake pipeline; Rigid water collecting unit, arranged inside the sealed pressure-bearing cabin, at the bottom of the sealed pressure-bearing cabin; the rigid water collecting unit includes a water collecting tank, and the water inlet of the air intake pipe of the water collecting tank is connected to the water outlet of the water collecting pipe; Exhaust unit, the exhaust unit includes: The first exhaust pipe is arranged in the sealed pressure cabin and above the water collecting tank; the first exhaust pipe communicates with the exhaust port of the diesel generator and the water collecting tank; the air outlet of the first exhaust pipe is located in the upper space of the water collecting tank; The second exhaust pipe communicates the water collecting tank with the external space of the sealed pressure cabin, and an exhaust solenoid valve is arranged on the second exhaust pipe; the air inlet of the second exhaust pipe is located in the upper space of the water collecting tank; The control module is arranged in the sealed pressure cabin, and the control module is connected to the diesel generator, the first intake solenoid valve, and the exhaust solenoid valve; the control module is configured to: control the start and stop of the diesel generator, and control the opening and closing of the intake solenoid valve and the exhaust solenoid valve.

[0006] In some embodiments, the sealed pressure cabin includes: The cabin body has openings at both ends; an installation hole for communicating the internal space and the external space of the cabin body is provided in the upper part of the cabin body, and the installation hole is used for installing the first intake pipe; an installation frame is provided at the top of the outer surface of the cabin body, and the installation frame is used for installing the second intake pipe of the folding intake unit located outside the sealed pressure cabin; The fitting is arranged at the opening of the end of the cabin body; The first sealing assembly is connected to the fitting through a connecting piece to seal the cabin body.

[0007] In some embodiments, annular reinforcing ribs are provided on the outer surface of the cabin body.

[0008] In some embodiments, the first sealing assembly includes a head and a sealing ring provided between the head and the fitting.

[0009] In some embodiments, the folding intake unit includes: The intake pipe includes the first intake pipe and the second intake pipe, and the first intake pipe and the second intake pipe are communicated through a second sealing assembly; a second intake solenoid valve connected to the control module is arranged on the second intake pipe, and an intake hole is provided on the second intake pipe above the second intake solenoid valve; The outlet pipe communicates the first intake pipe and the internal space of the sealed pressure cabin; The water collecting pipe communicates the first intake pipe and the water inlet of the intake pipe of the water collecting tank; The rotary drive assembly is connected to the lower end of the second intake pipe and is used for driving the second intake pipe to be erected and folded.

[0010] In some embodiments, the second sealing assembly includes an elbow, and a support ring is provided at one end of the elbow communicating with the first intake pipe; a sealing ring is provided between one end of the elbow communicating with the first intake pipe and the first intake pipe.

[0011] In some embodiments, the rotary drive assembly includes a drive motor and a coupling connected to the output shaft of the drive motor, and the coupling is connected to the lower end of the second intake pipe.

[0012] In some embodiments, the folding intake unit further includes an infrared observation and antenna module for communicating with the underwater vehicle, and the infrared observation and antenna module is installed on the top of the second intake pipe and is used for observing and alarming sea surface objects when the diesel generator is working.

[0013] In some embodiments, a movable baffle is longitudinally arranged in the water collecting tank, and the movable baffle divides the internal space of the water collecting tank into a first space and a second space. The water inlet of the intake pipe of the water collecting tank is located in the first space, and the air outlet of the first exhaust pipe and the air inlet of the second exhaust pipe are located in the second space.

[0014] In some embodiments, the rigid water collecting unit further includes: A drainage water pump is installed on the upper surface of the water collecting tank. The water outlet of the drainage water pump is communicated with the external space of the sealed pressure cabin through a first main drainage pipeline, and a main drainage valve is provided on the first main drainage pipeline; both the drainage water pump and the main drainage valve are connected to the control module; An intake water suction pipe communicates the drainage water pump and the first space; an intake water suction valve connected to the control module is provided on the pipe section of the intake water suction pipe located outside the water collecting tank. The water outlet of the intake water suction pipe communicates with the water inlet pipe of the drainage water pump, and the water inlet of the intake water suction pipe is located at the bottom of the first space; An exhaust water suction pipe communicates the drainage water pump and the second space; an exhaust water suction valve connected to the control module is provided on the pipe section of the exhaust water suction pipe located outside the water collecting tank. The water outlet of the exhaust water suction pipe communicates with the water inlet pipe of the drainage water pump, and the water inlet of the exhaust water suction pipe is located at the bottom of the second space.

[0015] In some embodiments, the rigid water collecting unit further includes a liquid level sensor arranged in the water collecting tank, and the liquid level sensor includes: A first intake liquid level sensor is arranged in the first space, and the first intake liquid level sensor is connected to the control module and is used for detecting the upper limit liquid level of water in the first space and transmitting it to the control module; A second intake liquid level sensor is disposed in the first space. The second intake liquid level sensor is connected to the control module and is used to detect the lower liquid level of water in the first space and transmit it to the control module. A first exhaust liquid level sensor is disposed in the second space. The first exhaust liquid level sensor is connected to the control module and is used to detect the upper liquid level of water in the second space and transmit it to the control module. A second exhaust liquid level sensor is disposed in the second space. The second exhaust liquid level sensor is connected to the control module and is used to detect the lower liquid level of water in the second space and transmit it to the control module.

[0016] In some embodiments, the underwater power supplement device further includes a flexible water collection unit disposed in the sealed pressure cabin. The flexible water collection unit is located at the bottom of the sealed pressure cabin. The flexible water collection unit includes a flexible container. The water inlet pipeline and the drainage pipeline of the flexible container are both communicated with the internal space of the water collection tank. The water inlet pipeline is disposed above the drainage pipeline. A one-way valve is provided on the water inlet pipeline of the flexible container. When the water in the water collection tank flows into the flexible container, the one-way valve opens. When the water in the flexible container flows into the water collection tank, the one-way valve closes. A drainage valve is provided on the drainage pipeline of the flexible container. When draining water through the drainage pipeline, the drainage valve opens.

[0017] In some embodiments, the underwater power supplement device further includes a heat dissipation unit. The heat dissipation unit includes a fixed heat dissipation module and a coiled pipe heat dissipation module. The fixed heat dissipation module and the coiled pipe heat dissipation module are communicated with the external space of the sealed pressure cabin through a total water inlet pipeline and a second total drainage pipeline. A total water inlet solenoid valve connected to the control module is provided on the total water inlet pipeline. A total drainage solenoid valve connected to the control module is provided on the second total drainage pipeline. The fixed heat dissipation module includes: A heat dissipation housing. A cooling water pipeline and a cooling circulation water pump connected to the control module are disposed in the heat dissipation housing. The outlet of the cooling circulation water pump is connected to the inlet of the cooling water pipeline. A cooling water inlet pipeline. The inlet of the cooling water inlet pipeline is communicated with the outlet of the total water inlet pipeline. The outlet of the cooling water inlet pipeline is communicated with the inlet of the cooling circulation water pump. An inlet solenoid valve connected to the control module is provided on the cooling water inlet pipeline. A cooling water outlet pipeline. The inlet of the cooling water outlet pipeline is communicated with the outlet of the cooling water pipeline. The outlet of the cooling water outlet pipeline is communicated with the inlet of the second total drainage pipeline. A drainage solenoid valve connected to the control module is provided on the cooling water outlet pipeline. At least one set of fan assemblies connected to the control module, the fan assemblies being in internal communication with the inside of the heat dissipation housing; the fan assemblies include an intake fan provided on one side of the heat dissipation housing and an exhaust fan provided on the other side of the heat dissipation housing; The coiled tube heat dissipation module includes a coiled tube wound around the inner wall of the sealed pressure-bearing chamber, the water inlet of the coiled tube is connected to the water outlet of the total water inlet pipeline, and the water outlet of the coiled tube is connected to the water inlet communicating with the second total drainage pipeline.

[0018] In the second aspect of the present application, an underwater navigation device is provided, the device includes an underwater vehicle and an underwater power supplement device installed on the underwater vehicle, the underwater power supplement device adopts the underwater power supplement device described in the embodiment of the first aspect of the present application, and the diesel generator of the underwater power supplement device is connected to the battery energy source of the underwater vehicle to charge the battery energy source.

[0019] Compared with the prior art, the advantages and positive effects of the present application are as follows: (1) The underwater power supplement device provided by the present application provides necessary conditions for the operation of the diesel generator through the sealed pressure-bearing chamber, the folding intake unit, the rigid water collection unit, and the exhaust unit. Among them, the sealed pressure-bearing chamber provides pressure protection for devices such as diesel engines provided in the sealed pressure-bearing chamber, the folding intake unit provides air for the diesel engine to generate electricity, the exhaust unit discharges the exhaust gas generated by the diesel generator, and the rigid water collection unit collects the seawater that surges in from the folding intake unit and the exhaust unit. The present application can realize multiple charging of the power energy of the underwater navigation device and improve the endurance of the underwater navigation device.

[0020] (2) In the underwater power supplement device provided by the present application, the movable baffle in the water collection tank divides the internal space of the water collection tank into a first space and a second space. On the one hand, the movable baffle can automatically adjust its position according to the seawater pressure difference between the first space and the second space, adjust the seawater volume in the two spaces, and prevent seawater from flowing back into the diesel generator; on the other hand, the movable baffle can isolate the exhaust gas discharged by the diesel generator from the air entering the folding intake unit, avoiding affecting the quality of the entering air.

[0021] (3) In the underwater power supplement device provided by the present application, when the seawater collected in the water collection tank reaches a preset value, the seawater collected by the rigid water collection unit is discharged through the drainage water pump, the intake water suction pipe, and the exhaust water suction pipe, preventing the seawater collected in the water collection tank from flowing back into the diesel generator too much.

[0022] (4)The underwater power supplement device provided by the present application detects the sea water level in the water collection tank through a liquid level sensor. When the sea water level in the water collection tank reaches the upper limit, the control module controls the drainage water pump to operate, and the sea water in the water collection tank is discharged through the drainage water pump. When the sea water level in the water collection tank is lower than the lower limit, the control module controls the drainage water pump to stop operating.

[0023] (5)The underwater power supplement device provided by the present application is also provided with a flexible water collection unit. When collecting sea water, the sea water filled into the flexible water collection unit will automatically adhere to the narrow pores in the sealed pressure-bearing cabin. Combining the flexible water collection unit with the rigid water collection unit can increase the total water collection capacity.

[0024] (6)The underwater power supplement device provided by the present application is also provided with a heat dissipation unit. The heat dissipation unit includes a fixed heat dissipation module and a coil heat dissipation module. Combining the fixed heat dissipation module and the coil heat dissipation module makes full use of the irregular space in the sealed pressure-bearing cabin to improve the heat dissipation efficiency. Description of the Drawings

[0025] Figure 1 is a schematic plan view of the underwater power supplement device according to the embodiment of the present application; Figure 2 is a schematic structural view of the sealed pressure-bearing cabin according to the embodiment of the present application; Figure 3 is a schematic structural view of the sealed pressure-bearing cabin when there are two cabins according to the embodiment of the present application; Figure 4 is a schematic structural view of the folding air intake unit according to the embodiment of the present application; Figure 5 is a schematic structural view of the second sealing assembly and the rotary drive assembly according to the embodiment of the present application; Figure 6 is a schematic structural view of the rigid water collection unit according to the embodiment of the present application; Figure 7 is a schematic cross-sectional view of the rigid water collection unit according to the embodiment of the present application; Figure 8 is Figure 7 an enlarged view of part G of Figure 9 is a schematic structural view of the exhaust unit according to the embodiment of the present application; Figure 10 is a schematic structural view of the flexible water collection unit according to the embodiment of the present application; Figure 11 is a schematic structural view of the fixed heat dissipation module according to the embodiment of the present application; Figure 12 is a schematic structural view of the coil heat dissipation module according to the embodiment of the present application; Figure 13This is the control schematic diagram of the underwater power supplement device described in the embodiments of the present application.

[0026] In the figure, 1 is the sealed pressure-bearing cabin, 101 is the cabin body, 1011 is the mounting hole, 1012 is the mounting frame, 1013 is the mounting slide rail, 1014 is the annular reinforcing rib, 102 is the fitting, 103 is the first sealing assembly, 1031 is the head, 1032 is the first sealing ring, 104 is the connecting piece, 105 is the inner wall of the pressure-bearing cabin, 2 is the diesel generator, 201 is the diesel generator fuel inlet, 202 is the diesel generator oil return port, 203 is the power-consuming equipment interface, 301 is the first intake pipeline, 302 is the exhaust pipe, 303 is the water collecting pipe, 304 is the first intake solenoid valve, 305 is the second intake pipeline, 306 is the second sealing assembly, 3061 is the elbow, 3062 is the support ring, 3063 is the second sealing ring, 307 is the second intake solenoid valve, 308 is the intake hole, 309 is the rotary drive assembly, 3091 is the drive motor, 3092 is the coupling, 310 is the infrared observation and antenna module, 401 is the water collecting tank, 4011 is the intake pipe water inlet, 4012 is the special-shaped structure part, 4013 is the conventional structure part, 402 is the movable baffle, 403 is the first space, 404 is the second space, 405 is the third sealing ring, 406 is the drainage water pump, 407 is the first total drainage pipeline, 408 is the total drainage valve, 409 is the intake suction pipe, 410 is the intake suction valve, 411 is the exhaust suction pipe, 412 is the exhaust suction valve, 413 is the first intake liquid level sensor, 414 is the second intake liquid level sensor, 415 is the first exhaust liquid level sensor, 416 is the second exhaust liquid level sensor, 501 is the first exhaust pipeline, 502 is the second exhaust pipeline, 503 is the first exhaust solenoid valve, 504 is the second exhaust solenoid valve, 505 is the surge protection device, 601 is the flexible container, 602 is the water inlet pipeline, 603 is the drainage pipeline, 604 is the check valve, 605 is the drainage valve, 7 is the fixed heat dissipation module, 701 is the heat dissipation housing, 702 is the cooling water pipeline, 703 is the cooling circulation water pump, 704 is the cooling water inlet pipeline, 7041 is the water inlet of the cooling water inlet pipeline, 705 is the water inlet solenoid valve, 706 is the cooling water outlet pipeline, 7061 is the water outlet of the cooling water outlet pipeline, 707 is the drainage solenoid valve, 708 is the first intake fan, 709 is the first exhaust fan, 710 is the second intake fan, 711 is the second exhaust fan, 801 is the coiled pipe, 9 is the control module, 901 is the external control bus interface, 10 is the total water inlet pipeline, 1001 is the total water inlet solenoid valve, 11 is the second total drainage pipeline, 1101 is the total drainage solenoid valve, 12 is the temperature sensor, 13 is the main control system of the AUV, B is the seawater, and C is the welding area. Detailed implementation manners

[0027] Next, the present application will be specifically described by way of exemplary embodiments. However, it should be understood that, without further recitation, elements, structures, and features in one embodiment may also be beneficially incorporated into other embodiments.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0029] The terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features.

[0030] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application may be understood according to specific circumstances.

[0031] Aiming at the problems such as insufficient endurance of the power source of existing underwater navigation devices, the present application provides an underwater power supplement device. Through the structural design of the underwater power supplement device, it can work underwater or near the water surface to charge the battery energy of the underwater navigation device. The following will describe in detail an underwater power supplement device and an underwater navigation device provided by the present application with reference to the drawings.

[0032] See Figures 1 to 13, in the embodiment of the first aspect of the present application, an underwater power supplement device is provided, which includes a sealed pressure-bearing cabin 1, a diesel generator 2, a folding air intake unit, a rigid water collection unit, an exhaust unit, and a control module 9. The diesel generator 2 is arranged in the sealed pressure-bearing cabin 1 and is used for generating electricity to charge the power energy of the underwater navigation device. The folding air intake unit communicates the internal space and the external space of the sealed pressure-bearing cabin 1 to provide an air inlet channel for the diesel engine to generate electricity. The rigid water collection unit is arranged in the sealed pressure-bearing cabin 1 and is located at the bottom of the sealed pressure-bearing cabin 1 for collecting seawater flowing in from the folding air intake unit and the exhaust unit. The exhaust unit is used for discharging the exhaust gas generated by the diesel generator. The control module 9 is used to control the start and stop of the diesel generator 2 and control the intake and exhaust.

[0033] Specifically, the diesel generator 2 is connected to an external fuel supply device through a diesel generator fuel inlet 201 to obtain diesel for power generation. The diesel generator 2 is connected to an external fuel supply device through a diesel generator fuel return port 202 to send the unused fuel back to the external fuel supply device to maintain the balance of the fuel supply pressure. The diesel generator 2 is connected to the power energy of the underwater navigation device through a power-consuming device interface 203 to charge the power energy.

[0034] Specifically, a first air intake pipeline 301 located in the sealed pressure-bearing cabin 1 of the folding air intake unit communicates an air outlet pipe 302 and a water collection pipe 303, and the air outlet of the air outlet pipe 302 is communicated with the internal space of the sealed pressure-bearing cabin 1. A first air intake solenoid valve 304 is provided on the first air intake pipeline 301.

[0035] Specifically, the rigid water collection unit includes a water collection tank 401, and the water inlet of the air intake pipe of the water collection tank 401 is communicated with the water outlet of the water collection pipe 303.

[0036] Specifically, the exhaust unit includes: A first exhaust pipeline 501, arranged in the sealed pressure-bearing cabin 1 and located above the water collection tank 401; the first exhaust pipeline 501 communicates the diesel generator exhaust port and the water collection tank 401; the air outlet of the first exhaust pipeline 501 is located in the upper space of the water collection tank 401; A second exhaust pipeline 502, communicating the water collection tank 401 with the external space of the sealed pressure-bearing cabin 1, and an exhaust solenoid valve is provided on the second exhaust pipeline 502; the air inlet of the second exhaust pipeline 502 is located in the upper space of the water collection tank 401; The control module 9 is arranged in the sealed pressure-bearing cabin 1, and the control module 9 is connected to the diesel generator 2, the first air intake solenoid valve 304, and the exhaust solenoid valve; the control module 9 is configured to: control the start and stop of the diesel generator 2 and control the opening and closing of the first air intake solenoid valve 304 and the exhaust solenoid valve.

[0037] Specifically, in some embodiments, the sealed pressure-bearing cabin 1 includes a cabin body 101, a fitting 102, and a first sealing assembly 103.

[0038] Both ends of the cabin body 101 are open. An installation hole 1011 communicating the internal space and the external space of the cabin body 101 is provided at the upper part of the cabin body 101, and the installation hole 1011 is used for installing the first intake pipeline 301. An installation bracket 1012 is provided at the top of the outer surface of the cabin body 101, and the installation bracket 1012 is used for installing the second intake pipeline 305 of the folding intake unit outside the sealed pressure-bearing cabin 1. The installation bracket 1012 plays a role in supporting and fixing the second intake pipeline. An installation slide rail 1013 is provided at the inner bottom of the cabin body 101, and the diesel generator 2 is installed at the bottom of the cabin body through the installation slide rail 1013. By installing the diesel generator 2 through the installation slide rail 1013, the diesel generator 2 can be quickly assembled, improving the assembly efficiency.

[0039] The fitting 102 is provided at the opening of the end of the cabin body 101.

[0040] The first sealing assembly 103 is connected to the fitting 102 through a connecting member 104 to seal the cabin body 101.

[0041] Specifically, in the specific implementation manner of Embodiment 1 of the present application, the fitting 102 is a sealing flange, and the sealing flange adopts a standard joint, which can be quickly assembled, improving the assembly efficiency.

[0042] In some embodiments, there is at least one cabin body 101. When there are two or more cabin bodies 101, the adjacent cabin bodies 101 are connected through the cooperation of the fitting 102 and the connecting member 104. When it is necessary to expand the space of the sealed pressure-bearing cabin 1, the internal space of the sealed pressure-bearing cabin 1 is expanded through the cooperation of the fitting 102 and the connecting member 104. For example: Refer to Figure 2 , there are two cabin bodies 101. Compared with one cabin body, after the two cabin bodies are combined through the cooperation of the fitting 102 and the connecting member 104, the internal space of the sealed pressure-bearing cabin 1 is larger. Figure 2 In, A is the expansion docking position.

[0043] In some embodiments, an annular reinforcing rib 1014 is provided on the outer surface of the cabin body 101, and the pressure-bearing capacity of the sealed pressure-bearing cabin is increased through the annular reinforcing rib 1014.

[0044] In some embodiments, the first sealing assembly 103 includes a head 1031 and a first sealing ring 1032 provided between the head 1031 and the fitting 102. Through the sealing effect of the first sealing ring 1032, the head 1031 is tightly combined with the cabin body 101, improving the waterproof ability of the sealed pressure-bearing cabin 1.

[0045] Specifically, in the specific implementation manner of Embodiment 1 of the present application, the connecting member 104 adopts a locking bolt combination structure of a bolt and a nut. The bolt passes through the assembly holes provided on the fitting 102 and the head 1031 and cooperates with the nut to lock the cabin 101 and the first sealing assembly 103.

[0046] Specifically, in some embodiments, the folding intake unit includes: An intake pipeline, the intake pipeline includes the first intake pipeline 301 and the second intake pipeline 305, and the first intake pipeline 301 and the second intake pipeline 305 are connected through a second sealing assembly 306; a second intake solenoid valve 307 connected to the control module 9 is provided on the second intake pipeline 305, and an intake hole 308 is provided on the second intake pipeline above the second intake solenoid valve 307; An outlet pipe 302, connecting the internal space of the first intake pipeline 301 and the sealed pressure-bearing cabin 1; A water collecting pipe 303, connecting the first intake pipeline 301 and the intake pipe water inlet 4011 of the water collecting tank 401; A rotary drive assembly 309, connected to the lower end of the second intake pipeline 305, for driving the second intake pipeline 305 to stand up and fold.

[0047] When the underwater power supply supplement device works, the air entering from the folding intake unit enters the sealed pressure-bearing cabin 1 through the outlet pipe 302 to provide air for the diesel generator 2 to generate electricity. The seawater surging in from the folding intake unit is collected into the water collecting tank 401 through the water collecting pipe 303.

[0048] Specifically, in the specific implementation manner of Embodiment 1 of the present application, the outlet pipe 302 is a bent pipe, and the end of the outlet pipe 302 communicating with the internal space of the sealed pressure-bearing cabin 1 is higher than the end communicating with the first intake pipeline 301. The outlet pipe is provided as a bent pipe, which can effectively prevent the seawater surging in from the first intake pipeline 301 from entering the sealed pressure-bearing cabin 1.

[0049] In some embodiments, the second sealing assembly 306 includes an elbow 3061, and a support ring 3062 is provided at the end of the elbow 3061 communicating with the first intake pipeline 301; a second sealing ring 3063 is provided between the end of the elbow 3061 communicating with the first intake pipeline 301 and the first intake pipeline 301. The second sealing assembly provides a rotary sealing channel for the first intake pipeline and the second intake pipeline, preventing seawater from entering the intake pipeline when the second intake pipeline rotates.

[0050] Specifically, in some embodiments, the rotation drive assembly 309 includes a drive motor 3091 and a coupling 3092 connected to the output shaft of the drive motor 3091. The coupling 3092 is connected to the lower end of the second intake pipe 305. The drive motor 3091 drives the second intake pipe 305 to stand up and fold through the coupling 3092. When the drive motor 3091 drives the second intake pipe 305 to the upright standing state through the coupling 3092 and reaches a predetermined position, the drive motor 3091 locks itself to fix the second intake pipe 305. When the intake passage is opened, the second intake pipe 305 is in the standing state, and the height of the intake port is increased, which can effectively reduce the influx of seawater into the second intake pipe 305.

[0051] In some embodiments, the folding intake unit further includes an infrared observation and antenna module 310. The infrared observation and antenna module 310 is installed on the top of the second intake pipe 305 and is used to observe and alarm the sea surface environment when the diesel generator 2 is working.

[0052] In some embodiments, a movable baffle 402 is longitudinally arranged in the water collection tank 401. The movable baffle 402 divides the internal space of the water collection tank 401 into a first space 403 and a second space 404. The intake pipe water inlet of the water collection tank 401 is located in the first space 403, and the air outlet of the first exhaust pipe 501 and the air inlet of the second exhaust pipe 502 are located in the second space 404. The movable baffle 402 in the water collection tank 401 divides the internal space of the water collection tank 401 into a first space 403 and a second space 404. On the one hand, the movable baffle 402 can automatically adjust its position according to the seawater pressure difference between the two spaces to adjust the seawater volume in the two spaces and prevent seawater from flowing back into the diesel generator 2. On the other hand, the movable baffle 402 can isolate the exhaust gas discharged from the diesel generator 2 and the air entering the folding intake unit to avoid affecting the quality of the entering air.

[0053] Specifically, in some specific embodiments of the embodiments of the present application, a third sealing ring 405 is provided between the movable baffle 402 and the inner wall of the water collection tank 401. Through the action of the third sealing ring 405, it can effectively prevent the gas and water in the first space 403 from entering the second space 404 and the gas and water in the second space 404 from entering the first space 403.

[0054] It should be noted that, in order to reduce the impact on the air entering the first space 403 and also to reduce the volume of the water collection tank 401, in some specific embodiments of the embodiments of the present application, the water collection tank 401 is integrally provided with a special-shaped structure part 4012 (profile structure) + a conventional structure part 4013 (such as: semi-cylinder, cube, cuboid, etc.), which can make full use of the effective volume in the sealed pressure cabin 1.

[0055] In some embodiments, the rigid water collection unit further includes: A drainage water pump 406, installed on the upper surface of the water collection tank 401. The water outlet of the drainage water pump 406 is connected to the external space of the sealed pressure cabin 1 through a first main drainage pipeline 407, and a main drainage valve 408 is provided on the first main drainage pipeline 407; both the drainage water pump 406 and the main drainage valve 408 are connected to the control module 9; An intake water suction pipe 409, connecting the drainage water pump 406 and the first space 403; an intake water suction valve 410 connected to the control module 9 is provided on the pipe section of the intake water suction pipe 409 located outside the water collection tank 401. The water outlet of the intake water suction pipe 409 is connected to the water inlet pipe of the drainage water pump 406, and the water inlet of the intake water suction pipe 409 is located at the bottom of the first space 403; An exhaust water suction pipe 411, connecting the drainage water pump 406 and the second space 404; an exhaust water suction valve 412 connected to the control module 9 is provided on the pipe section of the exhaust water suction pipe 411 located outside the water collection tank 401. The water outlet of the exhaust water suction pipe 411 is connected to the water inlet pipe of the drainage water pump 406, and the water inlet of the exhaust water suction pipe 411 is located at the bottom of the second space 404.

[0056] When the seawater collected in the first space reaches the set upper limit threshold, the drainage water pump 406 is turned on, and the intake water suction valve 410 and the main drainage valve 408 are opened. The water in the first space 403 is discharged to the outside of the sealed pressure cabin 1 through the intake water suction pipe 409, the drainage water pump 406, and the first main drainage pipeline 407.

[0057] When the seawater collected in the second space reaches the set upper limit threshold, the drainage water pump 406 is turned on, and the exhaust water suction valve 412 and the main drainage valve 408 are opened. The water in the second space 404 is discharged to the outside of the sealed pressure cabin 1 through the exhaust water suction pipe 411, the drainage water pump 406, and the first main drainage pipeline 407.

[0058] In some embodiments, the rigid water collection unit further includes a liquid level sensor provided in the water collection tank 401. The liquid level sensor includes: A first intake liquid level sensor 413, provided in the first space 403. The first intake liquid level sensor 413 is connected to the control module 9 and is used to detect the upper liquid level of the water in the first space 403 and transmit it to the control module 9; The second intake liquid level sensor 414 is disposed in the first space 403. The second intake liquid level sensor 414 is connected to the control module 9 and is used to detect the lower limit liquid level of water in the first space 403 and transmit it to the control module 9; The first exhaust liquid level sensor 415 is disposed in the second space 404. The first exhaust liquid level sensor 415 is connected to the control module 9 and is used to detect the upper limit liquid level of water in the second space 404 and transmit it to the control module 9; The second exhaust liquid level sensor 416 is disposed in the second space 404. The second exhaust liquid level sensor 416 is connected to the control module 9 and is used to detect the lower limit liquid level of water in the second space 404 and transmit it to the control module 9.

[0059] The upper limit liquid level of water in the first space 403 is detected by the first intake liquid level sensor 413 and uploaded to the control module 9. When the liquid level of water in the first space 403 reaches the upper limit liquid level, the control module 9 controls the drainage water pump 406 to start. The drainage water pump 406 works, and controls the intake water suction valve 410 and the total drainage valve 408 to open. The water in the first space 403 is discharged to the outside of the sealed pressure cabin 1 through the intake water suction pipe 409, the drainage water pump 406 and the first total drainage pipeline 407. The lower limit liquid level of water in the first space 403 is detected by the second intake liquid level sensor 414 and uploaded to the control module 9. When the liquid level of water in the first space 403 is lower than the lower limit liquid level, the control module 9 controls the intake water suction valve 410 and the total drainage valve 408 to close to prevent seawater from flowing back into the water collection tank 401. At the same time, the control module 9 controls the drainage water pump 406 to stop working.

[0060] The upper limit liquid level of water in the second space 404 is detected by the first exhaust liquid level sensor 415 and uploaded to the control module 9. When the liquid level of water in the second space 404 reaches the upper limit liquid level, the control module 9 controls the drainage water pump 406 to start. The drainage water pump 406 works, and controls the exhaust water suction valve 412 and the total drainage valve 408 to open. The water in the second space 404 is discharged to the outside of the sealed pressure cabin 1 through the exhaust water suction pipe 411, the drainage water pump 406 and the first total drainage pipeline 407. The lower limit liquid level of water in the second space 404 is detected by the second exhaust liquid level sensor 416 and uploaded to the control module 9. When the liquid level of water in the second space 404 is lower than the lower limit liquid level, the control module 9 controls the exhaust water suction valve 412 and the total drainage valve 408 to close to prevent seawater from flowing back into the water collection tank 401. At the same time, the control module 9 controls the drainage water pump 406 to stop working.

[0061] In some embodiments, the exhaust solenoid valve includes a first exhaust solenoid valve 503 provided on the pipe section of the second exhaust pipe 502 located inside the sealed pressure cabin 1. The function of the exhaust solenoid valve can effectively prevent seawater backflow. The function of the exhaust solenoid valve can effectively prevent seawater backflow.

[0062] In some embodiments, the exhaust solenoid valve includes a first exhaust solenoid valve 503 provided on the pipe section of the second exhaust pipe 502 located inside the sealed pressure cabin 1 and a second exhaust solenoid valve 504 provided on the pipe section of the second exhaust pipe located outside the sealed pressure cabin. By adopting two exhaust solenoid valves, when one exhaust solenoid valve fails, the other exhaust solenoid valve can still play a role in preventing seawater backflow.

[0063] In some embodiments, the exhaust unit further includes a surge protection device 505, and the surge protection device 505 is communicated with the end of the pipe section of the second exhaust pipe 502 located outside the sealed pressure cabin 1. Through the surge protection device 505, the influx of seawater can be further reduced to prevent seawater backflow.

[0064] In some embodiments, the underwater power supply device further includes a flexible water collection unit provided inside the sealed pressure cabin 1, and the flexible water collection unit is located at the bottom of the sealed pressure cabin 1; the flexible water collection unit includes a flexible container 601, and both the water inlet pipe 602 and the drain pipe 603 of the flexible container 601 are communicated with the internal space of the water collection tank 401, and the water inlet pipe 602 is provided above the drain pipe 603. A one-way valve is provided on the water inlet pipe 602 of the flexible container 601. When the water in the water collection tank 401 flows into the flexible container 601, the one-way valve 604 opens, and when the water in the flexible container 601 flows into the water collection tank 401, the one-way valve 604 closes. The one-way valve allows water to only flow from the water collection tank into the flexible container, preventing the water in the flexible container from flowing back into the water collection tank to increase the water collection capacity. A drain valve 605 connected to the control module 9 is provided on the drain pipe 603 of the flexible container 601. When draining water through the drain pipe 603, the control module 9 controls the drain valve 605 to open. When draining water through the drain water pump 406, the control module 9 controls the drain valve 605 to open, so that the water in the flexible container flows into the water collection tank and is discharged through the drain water pump.

[0065] It should be noted that the flexible container 601 is made of a flexible material (such as rubber, etc.). When water surges into the flexible container, the flexible container 601 can automatically fill the empty space inside the sealed pressure cabin 1. Cooperating with the water collection tank 401, the water collection capacity can be increased.

[0066] In some embodiments, the underwater power supply replenishment device further includes a heat dissipation unit, and the heat dissipation unit includes a fixed heat dissipation module 7 and a pipe-winding heat dissipation module. The fixed heat dissipation module 7 and the pipe-winding heat dissipation module are connected to the external space of the sealed pressure cabin 1 through a main water inlet pipe 10 and a second main water discharge pipe 11. A main water inlet solenoid valve 1001 connected to the control module 9 is provided on the main water inlet pipe 10, and a main water discharge solenoid valve 1101 connected to the control module 9 is provided on the second main water discharge pipe 11.

[0067] Specifically, the fixed heat dissipation module 7 includes: A heat dissipation housing 701, in which a cooling water pipe 702 and a cooling circulation water pump 703 connected to the control module 9 are provided. The water outlet of the cooling circulation water pump 703 is connected to the water inlet of the cooling water pipe 702; A cooling water inlet pipe 704, the water inlet 7041 of which communicates with the water outlet of the main water inlet pipe 10, the water outlet of the cooling water inlet pipe 704 communicates with the water inlet of the cooling circulation water pump 703, and a water inlet solenoid valve 705 connected to the control module 9 is provided on the cooling water inlet pipe 704; A cooling water outlet pipe 706, the water inlet of which communicates with the water outlet of the cooling water pipe 702, the water outlet 7061 of which communicates with the water inlet of the second main water discharge pipe 11, and a water discharge solenoid valve 707 connected to the control module 9 is provided on the cooling water outlet pipe 706; At least one set of fan assemblies connected to the control module, and the fan assemblies communicate with the inside of the heat dissipation housing 701; the fan assemblies include an intake fan provided on one side of the heat dissipation housing 701 and an exhaust fan provided on the other side of the heat dissipation housing 701.

[0068] During heat dissipation operation, the cooling circulation water pump 703 drives the cooling seawater to flow in the cooling water pipe 702, and the fan assemblies suck and discharge the hot air out of the heat dissipation housing 701 along the Figure 11 arrow direction in the figure. The hot air passes through the surface of the cooling water, and the heat is carried away by the cooling water to achieve heat dissipation.

[0069] Specifically, in the specific implementation of the first embodiment of the present application, there are two sets of fan assemblies. The first fan assembly includes a first intake fan 708 and a first exhaust fan 709. The first intake fan 708 is arranged on the bottom side of the heat dissipation housing 701, and the first exhaust fan 709 is arranged on the top side of the heat dissipation housing 701. The second fan assembly includes a second intake fan 710 and a second exhaust fan 711. The second intake fan 710 is arranged on the top side of the heat dissipation housing 701, and the second exhaust fan 711 is arranged on the bottom side of the heat dissipation housing 701. There are two sets of fan assemblies, and the two sets of fan assemblies can be backup fan assemblies for each other. When dissipating heat, one of the sets of fan assemblies works. Through the action of the intake fan and the exhaust fan, the hot air in the sealed pressure cabin 1 passes through the inside of the heat dissipation housing 701 and is cooled by the cooling water, taking away the heat. Once this set of fan assemblies fails, the other set of fan assemblies is started to carry out the heat dissipation work.

[0070] Specifically, the coiled tube heat dissipation module includes a coiled tube 801 wound around the inner wall 105 of the sealed pressure cabin. The water inlet of the coiled tube 801 is connected to the water outlet of the main water inlet pipeline 10, and the water outlet of the coiled tube 801 is connected to the water inlet communicating with the second main drainage pipeline 11. Cooling seawater flows through the inside of the coiled tube for heat dissipation.

[0071] Specifically, in the specific implementation of the first embodiment of the present application, the coiled tube 801 is welded to the inner wall 105 of the sealed pressure cabin. The coiled tube is fixed to the inner wall 105 of the sealed pressure cabin by welding. The welding area can increase the solid heat conduction ability, thereby increasing the heat dissipation ability of the underwater power supplement device.

[0072] Specifically, in the specific implementation of the first embodiment of the present application, the distance L between adjacent coiled tubes can be adjusted. By adjusting the distance L, the heat dissipation ability can be adjusted.

[0073] Specifically, in some embodiments, the control module 9 controls the start and stop of the in-cabin diesel generator and each water pump and the opening and closing of each valve through the in-cabin control line 14. The control module 9 is provided with an external control bus interface 901. The control module 9 communicates with the main control system of the underwater navigation device through the external control bus interface 901 and a bus (such as: CAN bus, etc.). For example: when the main control system of the underwater navigation device detects that the battery needs to be charged, it sends a charging instruction to the control module 9. After receiving the charging instruction, the control module 9 controls the underwater power supplement device to work and execute the charging. When the main control system of the underwater navigation device detects that the battery is fully charged, it sends a stop charging instruction to the control module 9, and the control module 9 controls the underwater power supplement device to stop working.

[0074] When the above-mentioned underwater power supplement device of the present application is in use, it can be integrally integrated on underwater navigation equipment (such as: AUV, underwater submersible, etc.), and can dive and float with the underwater navigation equipment.

[0075] Taking the example of mounting the above-mentioned underwater power supplement device of the present application on an AUV to illustrate its working process. The working process is mainly divided into an upward floating charging process and a downward diving process.

[0076] Upward floating charging process: When the AUV needs to replenish electric energy, the AUV floats to a position near the water surface. The above-mentioned underwater power supplement device of the present application starts to work according to the following steps: S1. Erect the folding intake unit Under the action of the drive motor 3091, the folding intake unit drives the second intake pipeline 305 to an upright state. After reaching the predetermined position, the drive motor 3091 self-locks to fix the second intake pipeline 305. The infrared observation and antenna module 310 conducts autonomous communication and sea surface environment monitoring. When encountering situations such as sea surface ships, the infrared observation and antenna module 310 generates a warning signal for warning and sends the warning signal to the AUV, and the AUV conducts autonomous maneuvering to avoid obstacles.

[0077] S2. Open the intake and exhaust channels The control module 9 first performs a procedural self-check. After meeting the preset conditions, the control module 9 controls to sequentially open the second intake solenoid valve 307, the first intake solenoid valve 304, the first exhaust solenoid valve 503, and the second exhaust solenoid valve 504 to ensure that the intake and exhaust channels of the diesel generator are opened.

[0078] S3. Open the water collection and drainage function Since the intake and exhaust channels are open, seawater will pour in from the intake hole 308 and the surge protection device 505. The seawater will first enter the water collection tank 401. When the seawater depth reaches the water inlet of the water inlet pipe 602, the seawater can flow into the flexible container 601 through the one-way valve 604. When the amount of seawater pouring in from the intake hole 308 and the surge protection device 505 is different, the movable baffle 402 can move automatically under the action of the underwater to adjust the water collection volume. When the water level in the water collection tank 401 reaches the upper limit water level, the control module 9 controls the drainage water pump 406 to start. The drainage water pump 406 works, and controls the intake water suction valve 410, the exhaust water suction valve 412 and the main drainage valve 408 to open. The water in the first space 403 is discharged to the outside of the sealed pressure cabin 1 through the intake water suction pipe 409, the drainage water pump 406 and the first main drainage pipeline 407. When the water level in the water collection tank 401 is lower than the water inlet pipe 602 and higher than the drainage pipeline 603, the control module 9 controls the drainage valve 605 to open. The water in the flexible container 601 starts to be discharged into the water collection tank 401 and is discharged to the outside of the sealed pressure cabin 1 along with the drainage water pump 406. When the water in the water collection tank 401 is lower than the drainage pipeline 603, the water in the flexible container 601 is drained out. The control module 9 controls the drainage valve 605 to close, and the flexible container 601 is prepared for collecting seawater next time. When the seawater level in the water collection tank 401 is lower than the lower limit water level, the control module 9 controls the drainage water pump 406, the intake water suction valve 410, the exhaust water suction valve 412 and the main drainage valve 408 to close, and the drainage is completed. Among them, intake drainage and exhaust drainage can drain water separately according to the height of the seawater level in the space where they are located.

[0079] S4. Turn on the heat dissipation function The control module 9 turns on the intake fan and the exhaust fan to make the air in the sealed pressure cabin 1 start to circulate; then sequentially opens the water inlet solenoid valve 705, the drainage solenoid valve 707, the main water inlet solenoid valve 1001, the main drainage solenoid valve 1101, starts the cooling circulation water pump 703, turns on the overall circulation cooling, and conducts heat dissipation.

[0080] S5. Start the diesel generator The control module 9 detects the folding intake unit, the rigid water collection unit, the exhaust unit, the flexible water collection unit, the fixed heat dissipation module 7, and the pipe-winding heat dissipation module. After the detections are all normal, the control module 9 controls the diesel generator 2 to start and start generating electricity to charge the AUV battery. During the charging process, the underwater power supplement device is detected in real time. If there is a warning, the diesel generator 2 is turned off, and the control module 9 conducts self-check and repair of relevant programs. If it cannot be repaired by itself, a warning message is sent to the shore station command center.

[0081] The process of diving and submerging: When the main control system 13 of the AUV detects that the battery of the AUV is fully charged, the main control system 13 of the AUV sends an instruction to the control module 9 of the underwater power supplement device 100. The control module 9 controls the diesel generator 2 to stop working and closes the air intake and exhaust channels. When the temperature sensor 12 installed in the sealed pressure cabin 1 detects that the temperature in the sealed pressure cabin 1 meets the diving temperature, the control module 9 controls to turn off the heat dissipation function. When it is detected that the liquid level in the water collection tank 401 is lower than the lower limit liquid level, the water collection and drainage function is closed. The control module 9 controls the drive motor 3091 to fold the second air intake pipeline 305 of the folding air intake unit and lock it in a predetermined position. The control module 9 starts to perform a self-check in the closed state. When all reach the preset values, it sends a diving permission instruction to the main control system 13 of the AUV, and the entire AUV can dive.

[0082] The closing sequence of each valve body in the above function modules is opposite to that when opening.

[0083] In the second aspect of the embodiments of the present application, an underwater navigation device is provided. The device includes an underwater vehicle and an underwater power supplement device installed on the underwater vehicle. The underwater power supplement device adopts the underwater power supplement device described in the first aspect of the embodiments of the present application. The diesel generator of the underwater power supplement device is connected to the battery energy source of the underwater vehicle to charge the battery energy source.

[0084] The above embodiments are used to explain the present application, rather than limit the present application. Any modification and change made to the present application within the spirit and scope of the claims of the present application fall within the protection scope of the present application.

Claims

1. An underwater power supplement device, applied to underwater navigation equipment, characterized in that, Comprising: A sealed pressure cabin; A diesel generator, disposed inside the sealed pressure cabin, for generating electricity to charge the power energy of the underwater navigation device; A folding air intake unit, connecting the internal space and the external space of the sealed pressure cabin; the first air intake pipeline located inside the sealed pressure cabin in the folding air intake unit connects the air outlet pipe and the water collecting pipe, and the air outlet of the air outlet pipe communicates with the internal space of the sealed pressure cabin; a first air intake solenoid valve is provided on the first air intake pipeline; A rigid water collecting unit, disposed inside the sealed pressure cabin, at the bottom of the sealed pressure cabin; the rigid water collecting unit includes a water collecting tank, and the water inlet of the air intake pipe of the water collecting tank communicates with the water outlet of the water collecting pipe; An exhaust unit, the exhaust unit comprising: A first exhaust pipeline, disposed inside the sealed pressure cabin, above the water collecting tank; the first exhaust pipeline connects the exhaust port of the diesel generator and the water collecting tank; the air outlet of the first exhaust pipeline is located in the upper space of the water collecting tank; A second exhaust pipeline, connecting the water collecting tank and the external space of the sealed pressure cabin, and an exhaust solenoid valve is provided on the second exhaust pipeline; the air inlet of the second exhaust pipeline is located in the upper space of the water collecting tank; A control module, disposed inside the sealed pressure cabin, and the control module is connected to the diesel generator, the first air intake solenoid valve, and the exhaust solenoid valve; the control module is configured to: control the start and stop of the diesel generator, and control the opening and closing of the air intake solenoid valve and the exhaust solenoid valve.

2. The underwater power supplement device according to claim 1, characterized in that, The sealed pressure cabin includes: A cabin body, with both ends open; an installation hole for connecting the internal space and the external space of the cabin body is provided at the upper part of the cabin body, and the installation hole is used for installing the first air intake pipeline; an installation frame is provided at the top of the outer surface of the cabin body, and the installation frame is used for installing the second air intake pipeline of the folding air intake unit located outside the sealed pressure cabin; A fitting, disposed at the opening of the end of the cabin body; A first sealing assembly, connected to the fitting through a connecting piece to seal the cabin body.

3. The underwater power supplement device according to claim 2, wherein There is at least one cabin body. When there are two or more cabin bodies, adjacent cabin bodies are connected by cooperation of the fitting and the connecting piece.

4. The underwater power supplement device according to claim 2, wherein The folding air intake unit includes: An air intake pipeline, the air intake pipeline includes the first air intake pipeline and the second air intake pipeline, and the first air intake pipeline and the second air intake pipeline are connected through a second sealing assembly; a second air intake solenoid valve connected to the control module is provided on the second air intake pipeline, and an air intake hole is provided on the second air intake pipeline above the second air intake solenoid valve; An air outlet pipe, connecting the first air intake pipeline and the internal space of the sealed pressure cabin; A water collecting pipe, connecting the first air intake pipeline and the water inlet of the air intake pipe of the water collecting tank; A rotary drive assembly, connected to the lower end of the second air intake pipeline, for driving the second air intake pipeline to stand up and fold.

5. The underwater power supplement device according to claim 2, characterized in that, The folding air intake unit further includes an infrared observation and antenna module for communicating with the underwater navigation device, and the infrared observation and antenna module is installed on the top of the second air intake pipeline, and is used for observing and alarming sea surface objects when the diesel generator is working.

6. The underwater power supplement device according to claim 1, wherein A movable baffle is longitudinally arranged in the water collecting tank. The movable baffle divides the internal space of the water collecting tank into a first space and a second space. The water inlet of the air inlet pipe of the water collecting tank is located in the first space, and the air outlet of the first exhaust pipe and the air inlet of the second exhaust pipe are located in the second space.

7. The underwater power supplement device according to claim 6, wherein The rigid water collecting unit further includes: A drainage water pump, installed on the upper surface of the water collecting tank. The water outlet of the drainage water pump is connected to the external space of the sealed pressure-bearing cabin through a first main drainage pipeline, and a main drainage valve is provided on the first main drainage pipeline; both the drainage water pump and the main drainage valve are connected to the control module; An air intake suction pipe, connecting the drainage water pump and the first space; an air intake suction valve connected to the control module is provided on the pipe section of the air intake suction pipe located outside the water collecting tank. The water outlet of the air intake suction pipe is connected to the water inlet pipe of the drainage water pump, and the water inlet of the air intake suction pipe is located at the bottom of the first space; An exhaust suction pipe, connecting the drainage water pump and the second space; an exhaust suction valve connected to the control module is provided on the pipe section of the exhaust suction pipe located outside the water collecting tank. The water outlet of the exhaust suction pipe is connected to the water inlet pipe of the drainage water pump, and the water inlet of the exhaust suction pipe is located at the bottom of the second space.

8. The underwater power supplement device according to claim 6, wherein The rigid water collecting unit further includes a liquid level sensor arranged in the water collecting tank. The liquid level sensor includes: A first air intake liquid level sensor, arranged in the first space. The first air intake liquid level sensor is connected to the control module and is used to detect the upper limit liquid level of the water in the first space and transmit it to the control module; A second air intake liquid level sensor, arranged in the first space. The second air intake liquid level sensor is connected to the control module and is used to detect the lower limit liquid level of the water in the first space and transmit it to the control module; A first exhaust liquid level sensor, arranged in the second space. The first exhaust liquid level sensor is connected to the control module and is used to detect the upper limit liquid level of the water in the second space and transmit it to the control module; A second exhaust liquid level sensor, arranged in the second space. The second exhaust liquid level sensor is connected to the control module and is used to detect the lower limit liquid level of the water in the second space and transmit it to the control module.

9. The underwater power supplement device according to claim 1, characterized in that, The underwater power supplement device further includes a flexible water collecting unit arranged in the sealed pressure-bearing cabin. The flexible water collecting unit is located at the bottom of the sealed pressure-bearing cabin; the flexible water collecting unit includes a flexible container. The water inlet pipe and the drainage pipe of the flexible container are both connected to the internal space of the water collecting tank, and the water inlet pipe is arranged above the drainage pipe; a one-way valve is provided on the water inlet pipe of the flexible container. When the water in the water collecting tank flows into the flexible container, the one-way valve opens. When the water in the flexible container flows into the water collecting tank, the one-way valve closes; a drainage valve is provided on the drainage pipe of the flexible container. When draining water through the drainage pipe, the drainage valve opens.

10. The underwater power supplement device according to claim 1, characterized in that, The underwater power supplement device further includes a heat dissipation unit, which includes a fixed heat dissipation module and a coiled pipe heat dissipation module. The fixed heat dissipation module and the coiled pipe heat dissipation module are connected to the external space of the sealed pressure cabin through a main water inlet pipeline and a second main water discharge pipeline. A main water inlet solenoid valve connected to the control module is provided on the main water inlet pipeline, and a main water discharge solenoid valve connected to the control module is provided on the second main water discharge pipeline; The fixed heat dissipation module includes: A heat dissipation housing, in which a cooling water pipeline and a cooling circulation water pump connected to the control module are provided. The water outlet of the cooling circulation water pump is connected to the water inlet of the cooling water pipeline; A cooling water inlet pipeline, the water inlet of which is connected to the water outlet of the main water inlet pipeline, the water outlet of which is connected to the water inlet of the cooling circulation water pump, and an inlet solenoid valve connected to the control module is provided on the cooling water inlet pipeline; A cooling water outlet pipeline, the water inlet of which is connected to the water outlet of the cooling water pipeline, the water outlet of which is connected to the water inlet of the second main water discharge pipeline, and a discharge solenoid valve connected to the control module is provided on the cooling water outlet pipeline; At least one group of fan assemblies connected to the control module, the fan assemblies being internally connected to the heat dissipation housing; the fan assemblies include an intake fan provided on one side of the heat dissipation housing and an exhaust fan provided on the other side of the heat dissipation housing; The coiled pipe heat dissipation module includes a coiled pipe wound around the inner wall of the sealed pressure cabin. The water inlet of the coiled pipe is connected to the water outlet of the main water inlet pipeline, and the water outlet of the coiled pipe is connected to the water inlet of the second main water discharge pipeline.

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