A self-propelled aerated oxygenation vessel based on OWC principle and its oxygenation method

Abstract

The present invention discloses a self-propelled aerated oxygenation boat based on the OWC principle and an oxygenation method thereof, wherein the aerated oxygenation boat comprises a main hull, a ballast water chamber is formed between the bottom of the bottom deck and the main hull, and the ballast water chamber is filled with water; two aerated oxygenation systems with the same structure and a sealed cabin are installed on the top of the bottom deck, and the aerated oxygenation system is also included, wherein the sealed cabin is installed with a single chip microcomputer for controlling the operation of the above-mentioned water inlet solenoid valve, the water discharge solenoid valve, the water pump and the following motor, two hull propellers, and a battery for powering various components in the aerated oxygenation boat. The aerated oxygenation boat disclosed by the present invention has high intelligence and flexibility: it can cruise autonomously, and solar energy is used for energy supply during navigation, and aeration and oxygenation can be realized in any sea area, and the aerated oxygenation area is no longer limited, and maintenance operation is also more convenient.

Description

Technical Field

[0001] The invention belongs to the field of water area oxygenation devices, and particularly relates to a self-propelled aerated oxygenation boat based on the OWC principle and an oxygenation method thereof in the field. Background Art

[0002] Dissolved oxygen is molecular oxygen dissolved in water and is an important component of the ocean. Dissolved oxygen in seawater provides a necessary living environment for most marine organisms, and its content is an important parameter for measuring seawater quality, predicting seawater self-purification capacity, and evaluating the marine ecological environment.

[0003] Research shows that there are more than 470 hypoxic areas reported worldwide. Large-scale hypoxia is mainly distributed in estuaries and coastal areas that are more affected by humans. Currently, the research and attention areas are concentrated in the northern Gulf of Mexico at the mouth of the Mississippi River. In addition, low-oxygen areas in summer have also been found in the Yangtze River Estuary in China, with an area of ​​more than 10,000 square kilometers. The Baltic Sea is the world's largest hypoxic sea area, with an hypoxic area of ​​up to 8.4×10 4 km 2 The hypoxic area in the Gulf of Mexico is 2.07×10 4 km 2 , known as the famous "death zone". The depth of the hypoxic zone in the northwest shelf of the Black Sea is as high as 40 m, and the maximum hypoxic zone area is 4×10 4 km 2 , the lowest dissolved oxygen concentration in history is 0mg / L. The phenomenon of seawater hypoxia has a significant negative impact on the marine ecological environment, aquaculture, tourism and shipping industries, so the research on water oxygenation has received more and more attention.

[0004] At present, there are three main methods for increasing the oxygen content of water bodies: mechanical, chemical and biological. Among them, mechanical aeration is the most commonly used oxygenation method. Its principle is to use electrical energy to drive mechanical components to stir the water body, accelerate convection exchange and interface renewal, so as to achieve the purpose of increasing the oxygen content of the water body. Commonly used mechanical aerators mainly include impeller aerators, waterwheel aerators, etc., which have the following main shortcomings: consuming electrical energy or fossil energy, polluting water quality, high cost and high power consumption of laying cables; severe disturbance of water, loud noise, easy to affect and harm aquatic organisms; easy to pump mud and other substances at the bottom of the water body, causing turbidity of the water body.

[0005] In order to solve the problems of high cost and high power consumption of laying cables, some scholars have proposed using renewable energy such as solar energy to power mechanical aerators. Its principle is to collect solar energy and convert it into electrical energy, and then use the electrical energy to drive the motor to drive the impeller to achieve the oxygenation function. However, it is greatly affected by weather conditions, has a low energy conversion rate, and has noise problems.

[0006] In addition, the current working mode of mechanical aerators is mostly to increase oxygen at a fixed point in a fixed area. The oxygenation area is limited, and it is impossible to intelligently move oxygen according to changes in oxygen concentration at various locations. There are deficiencies in the actual application of marine ranches. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a self-propelled aerated oxygenation vessel based on the OWC principle and an oxygenation method thereof.

[0008] The present invention adopts the following technical solution:

[0009] A self-propelled aerated oxygenation boat based on the OWC principle, the improvement of which is as follows: it comprises a main hull, on which a bottom deck, an upper deck and a stern deck are arranged; a ballast water chamber is formed between the bottom of the bottom deck and the main hull, and the ballast water chamber is filled with water; two aerated oxygenation systems with the same structure and a sealed cabin are installed on the top of the bottom deck, the aerated oxygenation system comprises a water tank fixedly installed on the bottom deck, the interior of the water tank is divided into two water chambers which are connected at the bottom end and not connected at the top end by a vertical partition, a box cover is arranged on the top of the two water chambers, each box cover is sealed with a side wall of the water chamber where it is located by a sealing ring, in addition, two air holes are arranged on each box cover, one of the air holes is connected to a one-way air inlet valve, and the other air hole is connected to a one-way air outlet valve, the one-way air inlet valve is connected to the atmosphere through a hose, and the one-way air outlet valve is connected to the berthing waters of the aerated boat through a hose, a drain outlet is arranged at the bottom of the side wall of the water tank, the drain outlet is connected to a drain solenoid valve through a pipeline, and the drain The water solenoid valve is connected to the ballast water chamber through a pipeline, and a water inlet is provided on the upper part of the side wall of the water tank. The water inlet is connected to the water inlet solenoid valve through a pipeline, and the water inlet solenoid valve is connected to the discharge port of the water pump through a pipeline, and the water inlet of the water pump is connected to the bottom of the ballast water chamber through a pipeline. The sealed cabin is installed with a single-chip microcomputer for controlling the above-mentioned water inlet solenoid valve, the discharge solenoid valve, the water pump and the following motor, two hull propellers, and batteries for powering various components in the oxygenation boat; one or more intelligent battery panels for charging the above-mentioned batteries are installed on the upper deck; an anchor delivery device is arranged on the upper part of the stern deck, and the anchor delivery device includes two anchor brackets fixedly mounted on the stern deck and a motor, a rotating shaft is installed between the two anchor brackets, the rotating shaft is driven to rotate by the above-mentioned motor, a cable ring for winding a cable is fixedly installed on the rotating shaft, an anchor is hung at the end of the cable, and two hull propellers with opposite rotation directions are symmetrically installed at the lower part of the stern deck.

[0010] Furthermore, one aeration and oxygenation system is installed horizontally on the bottom deck, and the other aeration and oxygenation system is installed vertically on the bottom deck, and the two aeration and oxygenation systems are perpendicular to each other.

[0011] Furthermore, the sealed cabin and the water pump are fixed to the bottom deck by bolts.

[0012] Furthermore, the single chip microcomputer is a STM32F4 series single chip microcomputer.

[0013] Furthermore, the intelligent solar panel includes a base installed on the upper deck, a thrust bearing installed on the base, a rotating platform installed on the thrust bearing, the rotating platform is driven to rotate by a first servo, two brackets are installed on the rotating platform, a rotating shaft is installed between the two brackets, a solar panel with a photosensitive element is fixedly installed on the rotating shaft, and a gear is installed at one end of the rotating shaft, the gear is meshed with a gear fixedly installed on the output shaft of the second servo, so that the second servo can drive the solar panel to swing, the first servo and the second servo are both controlled by a single-chip microcomputer, and the photosensitive element on the solar panel is also connected to the single-chip microcomputer for communication.

[0014] Furthermore, the first steering gear is installed on a base, and the second steering gear is installed on a bracket.

[0015] Furthermore, a smart camera is installed on the upper deck, and six infrared sensors in different directions are connected to the side of the main hull.

[0016] Furthermore, the motor is fixedly mounted on the rear deck via a motor bracket.

[0017] Furthermore, it also includes a navigation information collection module composed of MPU60X0 and ultrasonic rangefinder and a Bluetooth wireless communication module.

[0018] An oxygenation method, using the above-mentioned oxygenation boat, the improvement of which is as follows: starting two hull propellers to make the oxygenation boat sail, the oxygenation boat sails in a straight line when the two hull propellers rotate at the same speed, and turning to the direction of the hull propeller with a lower speed when the two hull propellers rotate at different speeds, and closing the two hull propellers after the oxygenation boat sails to the target waters; starting the motor to drive the cable loop to rotate clockwise to lower the anchor, and when the anchor touches the bottom, the motor stops and remains self-locked; opening the water inlet solenoid valve and the water pump, and injecting the water in the ballast water chamber into the water tank, and closing the water inlet solenoid valve and the water pump after the water level in the water tank reaches the set value; when the main hull shakes under the action of waves, the water in the water tank oscillates, and the water in the water chamber on one side of the partition plate The water level rises while the water level in the water chamber on the other side decreases. As the water level rises, the air volume in the water chamber decreases and the pressure increases. The air is discharged from the one-way air outlet valve through the hose into the berthing waters of the oxygenation boat to complete the oxygenation process. When the water level drops, the air volume in the water chamber increases and the pressure decreases. The air is sucked into the water chamber from the one-way air inlet valve through the hose to complete the air intake process. After the oxygenation operation in the current waters is completed, open the drain solenoid valve, drain the water in the water tank back to the ballast water chamber, and then close the drain solenoid valve; start the motor to drive the cable ring to rotate counterclockwise to lift the anchor. When the anchor is retracted, the motor stops and remains self-locked; start the two hull thrusters to make the oxygenation boat sail to the next target waters and repeat the above steps to perform the oxygenation operation.

[0019] The beneficial effects of the present invention are:

[0020] The oxygen enrichment boat disclosed by the present invention has the following advantages:

[0021] (1) It has high intelligence and flexibility: it can cruise autonomously, use solar energy for energy during navigation, and can achieve aeration and oxygenation in any sea area. The oxygenation area is no longer restricted, and maintenance operations are more convenient.

[0022] (2) Easy to use, long working hours, and manpower saving: It uses solar energy for autonomous cruising and can work for a long time. It uses wave energy for autonomous aeration and oxygenation, which can continuously oxygenate the water body for a long time. After the oxygenation boat is deployed, it works autonomously and integratedly throughout the process, and can automatically complete navigation, obstacle avoidance, anchoring, oxygenation and other functions, which is convenient and efficient. If necessary, the oxygenation boat can also intelligently receive user instructions through the Bluetooth wireless communication module.

[0023] (3) Dual-state switching of the center of gravity takes into account both navigation stability and high efficiency of aeration and oxygenation: The liquid circulation device composed of the water inlet solenoid valve, water pump and discharge solenoid valve is controlled by a single-chip microcomputer, so that water can be intelligently circulated and allocated between the ballast water chamber and the water tank of the aeration and oxygenation system, and the center of gravity position of the aeration boat can be adjusted in real time to adapt to the different requirements for ship stability under the two working states of navigation and aeration and oxygenation, thereby taking into account both the navigation stability of the aeration boat and the high efficiency of oxygenation.

[0024] (4) High oxygenation efficiency: Two aeration systems are installed on the bottom deck, one horizontally and one vertically, and are perpendicular to each other. They can make full use of the roll and pitch oscillations of the aeration ship's hull, thereby improving the oxygenation efficiency in complex sea conditions during actual use.

[0025] The oxygenation method disclosed in the present invention is based on the OWC principle, uses wave energy as the working power, does not require electrical energy or chemical energy such as petroleum, has low energy consumption, is environmentally friendly and pollution-free, solves the problem of large energy consumption of current mechanical aerators, and is beneficial to improving the water quality environment of aquaculture waters. The water in the water tank of the aeration oxygenation system oscillates with the frequency of the waves, is basically noiseless, has little impact on nearby waters, and will not have a negative impact on quiet and vulnerable organisms, which is beneficial to practical application in fishery production. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the oxygen enrichment boat disclosed in Example 1 of the present invention;

[0027] Figure 2 It is a structural schematic diagram of a liquid circulation device in an oxygenation vessel disclosed in Example 1 of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the water tank in the oxygenation boat disclosed in Example 1 of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the anchor placing device in the oxygen enrichment ship disclosed in Example 1 of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the intelligent battery panel in the oxygen enrichment boat disclosed in Example 1 of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] Embodiment 1, as Figure 1 As shown, this embodiment discloses a self-propelled intelligent aeration and oxygenation ship based on the OWC principle, which can use wave energy to perform aeration and oxygenation operations in the ocean, including a main hull 6, on which a bottom deck 11, an upper deck 2 and a stern deck are arranged; a ballast water chamber 12 is formed between the bottom of the bottom deck and the main hull, and the ballast water chamber is filled with water; two aeration and oxygenation systems 9 with the same structure and a sealed cabin 4 are installed on the top of the bottom deck, and the aeration and oxygenation system includes a water tank fixedly installed on the bottom deck, such as Figure 2As shown, the liquid circulation device 10 is composed of a water inlet solenoid valve 101, a water pump 102 and a water discharge solenoid valve 103. A drain port is provided at the bottom of the side wall of the water tank, and the drain port is connected to the drain solenoid valve through a pipeline. The drain solenoid valve is fixed to the side of the water tank by bolts and is connected to the ballast water chamber through a pipeline. A water inlet is provided at the upper part of the side wall of the water tank, and the water inlet is connected to the water inlet solenoid valve through a pipeline. The water inlet solenoid valve is fixed to the side of the water tank by bolts, above the drain solenoid valve, and is connected to the drain port of the water pump through a pipeline. The water inlet of the water pump is connected to the bottom of the ballast water chamber through a pipeline.

[0033] like Figure 3 As shown, the water tank 30 is divided into two water chambers with the bottom end connected and the top end not connected by the vertical partition 25 in the middle thereof. After the water tank is filled with water, the bottom of the partition is immersed in water, so that the upper air between the water chambers on both sides of the water tank is isolated from each other, and the bottom water body is connected to each other; a box cover 24, 28 is arranged on the top of the two water chambers, and each box cover is sealed with the side wall of the water chamber where it is located by a sealing ring 29 to ensure the water tightness of the water tank. In addition, two air holes are arranged on each box cover, one of which is connected to a one-way air inlet valve 22, 26, and the other is connected to a one-way air outlet valve 23, 27. The one-way air inlet valve is connected to the atmosphere through a hose, and the one-way air outlet valve is connected to the berthing water area of ​​the oxygenation boat through a hose. The sealed cabin is installed with a single chip microcomputer for controlling the above-mentioned water inlet solenoid valve, drainage solenoid valve, water pump and the following motor, two hull propellers, and batteries for powering various components in the oxygenation boat; three intelligent battery panels 1 for charging the above-mentioned batteries are fixed by bolts on the upper deck.

[0034] like Figure 4 As shown, an anchor dropping device 3 is arranged on the upper part of the rear deck, and after the anchor is lowered, the oxygenation boat can perform fixed-point oxygenation operations. The anchor dropping device includes two anchor brackets 35 and a motor bracket 32 ​​fixedly mounted on the rear deck 36, a motor 31 is mounted on the motor bracket, a rotating shaft is installed between the two anchor brackets, the rotating shaft is driven to rotate by the above-mentioned motor, a cable loop 34 for winding a cable is fixedly mounted on the rotating shaft, an anchor 37 is hung at the end of the cable, and two hull propellers 5 with opposite rotation directions are symmetrically installed on the lower part of the rear deck. In this embodiment, the two hull propellers are left-handed and right-handed blades respectively, which ensure that the torques of the two are offset by each other, thereby realizing the navigation and steering of the oxygenation boat.

[0035] In this embodiment, one aeration system is installed horizontally on the bottom deck, and the other aeration system is installed vertically on the bottom deck. The two aeration systems are perpendicular to each other, forming a rolling and pitching aeration system. The water tank, sealed cabin and water pump are all fixed to the bottom deck by bolts. The single chip microcomputer is a STM32F4 series single chip microcomputer.

[0036] like Figure 5As shown, the intelligent solar panel 1 includes a base 17 installed on the upper deck, a thrust bearing 16 is installed on the base, and a rotating platform 15 is installed on the thrust bearing. The thrust bearing not only ensures the rotation flexibility of the rotating platform, but also plays a role in supporting the rotating platform. The rotating platform is driven to rotate by a first steering gear 21 installed on the base, two brackets 14 are installed on the rotating platform, a rotating shaft is installed between the two brackets, and a solar panel 13 with a photosensitive element is fixedly installed on the rotating shaft. In addition, a gear 18 is installed at one end of the rotating shaft, and the gear is meshed with a gear 19 fixedly installed on the output shaft of the second steering gear 20, so that the second steering gear can drive the solar panel to swing. The second steering gear is installed on one of the above-mentioned brackets. The first steering gear and the second steering gear are both controlled by a single-chip microcomputer, that is, the single-chip microcomputer can control the intelligent rotation of the rotating platform and the swing of the solar panel. The photosensitive element on the solar panel is also connected and communicated with the single-chip microcomputer. The photosensitive element senses the angle of the light source and feeds back to the single-chip microcomputer. The single-chip microcomputer controls the rotation of the rotating platform and the swing of the solar panel to achieve flexible light tracking with two degrees of freedom.

[0037] An intelligent camera 7 with observation and obstacle avoidance functions is installed on the upper deck, and six infrared sensors 8 in different directions are connected to the side of the main hull to have a certain obstacle avoidance function. It also includes a navigation information collection module composed of MPU60X0 and ultrasonic rangefinder, which is used for navigation correction and obstacle avoidance of the oxygen enrichment boat; Bluetooth wireless communication module.

[0038] This embodiment also discloses an oxygenation method, using the above-mentioned oxygenation boat, starting two hull propellers to make the oxygenation boat sail, when the rotation speeds of the two hull propellers are the same, the oxygenation boat sails in a straight line, when the rotation speeds of the two hull propellers are different, the boat turns in the direction of the hull propeller with a lower rotation speed, the greater the speed difference, the smaller the turning radius, and the faster the turning. After the oxygenation boat sails to the target waters, the two hull propellers are closed; the motor is started to drive the cable ring to rotate clockwise to lower the anchor, when the anchor touches the bottom, the motor stops and remains self-locked, to ensure the reliability of anchoring and to make the oxygenation boat stop; the water inlet solenoid valve and water pump are opened, and the water in the ballast water room is injected into the water tank, and the water in the water tank is closed after the water level reaches the set value, so that the center of gravity of the oxygenation boat is raised, the stability is reduced, and the roll and pitch amplitude of the oxygenation boat are aggravated, so as to carry out subsequent oxygenation operations; when the main hull shakes under the action of waves, the water in the water tank oscillates, isolating The water level in the water chamber on one side of the board rises while the water level in the water chamber on the other side decreases. When the water level rises, the volume of air in the water chamber decreases and the pressure increases. The air is discharged from the one-way air outlet valve through the hose into the berthing waters of the oxygenation boat to complete the oxygenation process. When the water level drops, the volume of air in the water chamber increases and the pressure decreases. The air is sucked into the water chamber from the one-way air inlet valve through the hose to complete the air intake process. This process is repeated to perform the oxygenation operation. After the oxygenation operation in the current water area is completed, the drainage solenoid valve is opened, and the water in the water tank is automatically discharged back to the ballast water chamber under the action of gravity. After the drainage solenoid valve is closed, the oxygenation operation is stopped. After the water in the water tank is discharged back to the ballast water chamber, the center of gravity of the oxygenation boat is lowered, the stability is improved, and the stability of the oxygenation boat in the wind and waves is increased, ensuring the reliability of subsequent self-propelled operations. The motor is started to drive the cable ring to rotate counterclockwise to lift the anchor. When the anchor is retracted, the motor stops and remains self-locked to ensure that the anchor is in a fixed position. The two hull thrusters are started to make the oxygenation boat sail to the next target water area and repeat the above steps for oxygenation operation.

Claims

1. A self-propelled aeration and oxygenation vessel based on the OWC principle, characterized by: The invention comprises a main hull, on which a bottom deck, an upper deck and a stern deck are arranged; a ballast water chamber is formed between the bottom of the bottom deck and the main hull, and the ballast water chamber is filled with water; two aeration and oxygenation systems with the same structure and a sealed cabin are installed on the top of the bottom deck, wherein the aeration and oxygenation system comprises a water tank fixedly installed on the bottom deck, wherein the interior of the water tank is divided into two water chambers with the bottom end connected and the top end not connected by a vertical partition, and a box cover is arranged on the top of the two water chambers, and each box cover is provided with a side wall of the water chamber where the box cover is located. It is sealed by a sealing ring. In addition, two air holes are arranged on each tank cover, one of which is connected to a one-way air inlet valve, and the other is connected to a one-way air outlet valve. The one-way air inlet valve is connected to the atmosphere through a hose, and the one-way air outlet valve is connected to the berthing waters of the oxygenation boat through a hose. A drain port is arranged at the bottom of the side wall of the water tank, and the drain port is connected to the drain solenoid valve through a pipeline, and the drain solenoid valve is connected to the ballast water chamber through a pipeline. A water inlet is arranged on the upper part of the side wall of the water tank, and the water inlet port is connected to the water inlet solenoid valve through a pipeline, and the water inlet The water solenoid valve is connected to the discharge port of the water pump through a pipeline, and the water inlet of the water pump is connected to the bottom of the ballast water chamber through a pipeline. The sealed cabin is installed with a single chip microcomputer for controlling the above-mentioned water inlet solenoid valve, discharge solenoid valve, water pump and the following motor, two hull propellers and batteries for powering various components in the oxygenation boat; one or more intelligent battery panels for charging the above-mentioned batteries are installed on the upper deck; an anchor delivery device is arranged on the upper part of the rear deck, and the anchor delivery device includes two anchor brackets fixedly installed on the rear deck and a motor, a rotating shaft is installed between the two anchor brackets, and the rotating shaft is driven to rotate by the above-mentioned motor, a cable ring for winding a cable is fixedly installed on the rotating shaft, and an anchor is hung at the end of the cable, and two hull propellers with opposite rotation directions are symmetrically installed at the lower part of the rear deck; one aeration and oxygenation system is installed horizontally on the bottom deck, and the other aeration and oxygenation system is installed vertically on the bottom deck, and the two aeration and oxygenation systems are perpendicular to each other; the sealed cabin and the water pump are fixed to the bottom deck by bolts.

2. The self-propelled aeration and oxygenation vessel based on the OWC principle according to claim 1 is characterized by: The single chip microcomputer is a STM32F4 series single chip microcomputer.

3. The self-propelled aeration and oxygenation vessel based on the OWC principle according to claim 1 is characterized in that: The intelligent solar panel includes a base installed on the upper deck, a thrust bearing installed on the base, a rotating platform installed on the thrust bearing, the rotating platform is driven to rotate by a first servo, two brackets are installed on the rotating platform, a rotating shaft is installed between the two brackets, a solar panel with a photosensitive element is fixedly installed on the rotating shaft, and a gear is installed at one end of the rotating shaft, the gear is meshed with a gear fixedly installed on the output shaft of the second servo, so that the second servo can drive the solar panel to swing, the first servo and the second servo are both controlled by a single-chip microcomputer, and the photosensitive element on the solar panel is also connected to the single-chip microcomputer for communication.

4. The self-propelled aeration and oxygenation vessel based on the OWC principle according to claim 3 is characterized by: The first steering gear is installed on a base, and the second steering gear is installed on a bracket.

5. The self-propelled aeration and oxygenation vessel based on the OWC principle according to claim 1 is characterized by: A smart camera is also installed on the upper deck, and six infrared sensors in different directions are connected to the side of the main hull.

6. The self-propelled aeration and oxygenation vessel based on the OWC principle according to claim 1 is characterized by: The motor is fixedly mounted on the rear deck via a motor bracket.

7. The self-propelled aeration and oxygenation vessel based on the OWC principle according to claim 1 is characterized by: It also includes a navigation information collection module consisting of an MPU60X0 and an ultrasonic rangefinder, and a Bluetooth wireless communication module.

8. An oxygenation method using the oxygenation boat according to claim 1, characterized in that: Start the two hull propellers to make the oxygenation boat sail. When the speeds of the two hull propellers are the same, the oxygenation boat sails in a straight line. When the speeds of the two hull propellers are different, the boat turns to the direction of the hull propeller with the lower speed. After the oxygenation boat sails to the target waters, close the two hull propellers; start the motor to drive the cable ring to rotate clockwise to lower the anchor. When the anchor touches the bottom, the motor stops and remains self-locked; open the water inlet solenoid valve and water pump, and inject the water in the ballast water room into the water tank. When the water level in the water tank reaches the set value, close the water inlet solenoid valve and water pump; when the main hull shakes under the action of waves, the water in the water tank oscillates, the water level in the water room on one side of the partition rises, and the water level in the water room on the other side When the water level drops, the volume of air in the water chamber decreases and the pressure increases. The air is discharged from the one-way air outlet valve through the hose into the berthing waters of the oxygenation boat to complete the oxygenation process. When the water level drops, the volume of air in the water chamber increases and the pressure decreases. The air is sucked into the water chamber from the one-way air inlet valve through the hose to complete the air intake process. After the oxygenation operation in the current waters is completed, open the drain solenoid valve, drain the water in the water tank back to the ballast water chamber, and then close the drain solenoid valve. Start the motor to drive the cable ring to rotate counterclockwise and lift the anchor. When the anchor is retracted, the motor stops and remains self-locked. Start the two hull thrusters to make the oxygenation boat sail to the next target waters and repeat the above steps for oxygenation operations.

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