Floating assisting device and adjusting method

Abstract

The invention relates to the technical field of ocean engineering devices, in particular to a floating assisting device and an adjusting method. Comprising a plurality of compartments, an adjusting structure, a water inlet structure and a water drainage structure, each compartment is of a hollow closed cabin structure, and a water inlet cabin, a water drainage cabin and a water storage cabin are arranged in each compartment; the water storage cabin comprises a plurality of water storage units, a water inlet of the water storage cabin is communicated with the water inlet cabin, and a water outlet is communicated with the water outlet cabin; the plurality of compartments are spliced and connected with one another to form the floating assisting device with the required scale; the adjusting structure is arranged in the water storage cabin and used for controlling connection and disconnection of the adjacent water storage units. The water inlet structure is arranged in the water inlet cabin for injecting water into the water inlet cabin; the drainage structure is arranged in the drainage cabin and used for draining water in the drainage cabin. The floating assisting device is simple in structure and convenient to use, buoyancy adjustment can be conducted on the underwater equipment in a high-precision and high-efficiency mode, the stability and safety of adjustment of the underwater equipment are effectively improved, and the application range is wide.

Description

Technical Field

[0001] The invention relates to the technical field of marine engineering devices, and in particular to a flotation aid device and an adjustment method. Background Art

[0002] With the increasing demand for deep-sea project construction, all types of offshore construction projects require the use of underwater buoyancy adjustment devices to achieve operations below the water surface and resource exploration. When the draft depth is low, the buoyancy device is required to have high adjustment accuracy and be easy to carry. When the draft depth is large, the buoyancy device is required to be able to rise quickly, have strong pressure bearing capacity and be able to adjust the metacentric height of the structure. There is a high market demand for buoyancy adjustment devices in the fields of wave breaking engineering, seabed exploration, deep-sea mining, etc. at home and abroad, and underwater buoyancy adjustment technology is urgently needed.

[0003] There are two main aspects of the existing underwater buoyancy adjustment technology, namely, the volume change method and the weight change method. The volume change method is to set a container outside the structure to be adjusted, and use oil, gas and other media to increase or decrease the volume of the container, so that the buoyancy of the structure to be adjusted is increased or decreased, so as to achieve the purpose of draft depth adjustment. For example, there is an existing technology called a double inner and outer four-oil bag buoyancy adjustment device, which includes an inner oil bag assembly, an outer oil bag assembly, a hydraulic control unit, an oil inlet pipe and a welded elbow; the outer oil bag assembly and the inner oil bag assembly are symmetrically installed on both sides of the hydraulic control unit, and the outer oil bag assembly and the inner oil bag assembly are arranged horizontally from top to bottom, and the outer oil bag assembly and the inner oil bag assembly are fixedly connected by a fixing bar, and the two ends of the hydraulic control unit are respectively connected with the oil inlet pipe and the welded elbow, and the oil inlet pipe is simultaneously connected to the outer oil bag assembly on both sides of the hydraulic control unit, and the inner oil bag assembly on both sides of the hydraulic control unit is simultaneously connected to the inner oil bag assembly through the welded elbow, so that the hydraulic oil in the inner oil bag assembly flows into the outer oil bag assembly through the welded elbow, the hydraulic control unit and the oil inlet pipe in turn. The device adjusts the buoyancy by changing the drainage volume of the outer oil bag. However, this structure also has some problems. Although it can achieve rapid buoyancy within a certain range, the adjustment range is closely related to the size of the container. The adjustment range is limited and is only suitable for external container structures that are easy to install. In addition, it is difficult to control the volume change of the bladder, and the accuracy of buoyancy adjustment is not high.

[0004] The weight change method is often used in cabins, submersibles, etc., and the purpose of adjusting the draft is achieved by inhaling and discharging seawater to achieve changes in gravity. For example, there is a prior art called a ballast system for a deck transport ship, which includes an assembly pallet, a positioning base is fixedly installed on the top of the assembly pallet, and a controllable discharge mechanism and an autonomous actuator are respectively provided on the top of the assembly pallet. The controllable discharge mechanism includes a group of central cavities, and the water inlet and outlet ends of each central cavity are connected to a first flange connector. Each central cavity is provided with an electromagnetic valve inside, and the autonomous actuator includes a metal support frame, and a junction box is fixedly installed on the top of the metal support frame. The ballast system can accurately adjust the draft of the entire transport ship, but its pumping and drainage takes a long time, and the power energy requirements are extremely high. Moreover, this adjustment is mainly used for large transport ships, and is not applicable to relatively small structures, mainly because it is impossible to accurately adjust the center of gravity of a smaller structure.

[0005] It can be seen that the existing buoyancy adjustment device has the defects of low adjustment accuracy and efficiency, and is unable to change the center of gravity of the structure to adapt to the current market demand for diving equipment. Summary of the invention

[0006] The purpose of this application is to solve the deficiencies of the above-mentioned background technology and to provide a flotation aid device and an adjustment method.

[0007] The technical solution of the present application is: a flotation device, comprising:

[0008] Multiple compartments, each compartment is a hollow closed cabin structure, and a water inlet tank, a drainage tank and a water storage tank are arranged in the compartment; the water storage tank includes multiple water storage units, the water inlet of the water storage tank is connected with the water inlet tank, and the drainage port is connected with the drainage tank; the multiple compartments are spliced ​​and connected to each other to form a flotation device of a required scale;

[0009] A regulating structure, which is arranged in the water storage tank and is used to control the on and off of adjacent water storage units;

[0010] A water inlet structure, the water inlet structure being arranged in the water inlet tank for filling water into the water inlet tank;

[0011] A drainage structure is provided in the drainage compartment for draining water from the drainage compartment.

[0012] According to a flotation aid device provided by the present application, the cell is a fan-shaped structure, and a plurality of cells are spliced ​​into a disc-shaped flotation aid device through a connecting structure.

[0013] According to a flotation aid device provided in the present application, the connection structure includes a protrusion arranged on one circumferential side of the cell and a recessed portion on the other circumferential side of the cell, and adjacent cells are fixedly connected as a whole by engaging the protrusions in the corresponding recessed portions.

[0014] According to a flotation aid device provided in the present application, a plurality of partitions are arranged in the water storage tank, and the plurality of partitions are cross-arranged radially and circumferentially to divide the water storage tank into a plurality of water storage units, and the two ends of the partitions along the axial direction are fixedly connected to the top plate and the bottom plate of the compartment respectively.

[0015] According to a flotation aid device provided in the present application, a through hole communicating with adjacent water storage units is provided on the partition; and the regulating structure controls the opening and closing of adjacent water storage units by controlling the opening and closing of the through hole.

[0016] According to a flotation aid device provided in the present application, the adjustment structure includes a baffle and a driving motor installed in the water storage unit for driving the baffle to block the through hole to isolate adjacent water storage units or to remove the baffle from the through hole to connect adjacent water storage units.

[0017] According to a flotation aid device provided by the present application, the water inlet structure and the water discharge structure are respectively disposed at two circumferential ends of the cell along a side radially away from the center of the circle.

[0018] According to a flotation aid device provided in the present application, the water inlet structure includes at least one water inlet pipe and at least one water diversion pipe; one end of the water inlet pipe is connected to the water inlet tank, and the other end is connected to the external seawater; the lower end of the water diversion pipe is connected to the water inlet tank, and the upper end extends above the sea surface.

[0019] According to a flotation aid device provided in the present application, the drainage structure includes at least one drainage pipe and at least one air duct; one end of the drainage pipe is connected to the drainage compartment, and a one-way valve is provided on the drainage pipe; the lower end of the air duct is connected to the drainage compartment, and the upper end extends above the sea surface for extracting air from the compartment when water enters the compartment and injecting air into the compartment when water is drained from the compartment.

[0020] According to a flotation aid device provided in the present application, an air bag with adjustable volume is arranged at the bottom of the cell.

[0021] The present application also provides a method for adjusting a flotation aid device, the method for adjusting any of the above-mentioned flotation aid devices comprising:

[0022] Assemble multiple compartments into required flotation devices, and securely connect the flotation devices to underwater equipment;

[0023] Transport the flotation device and underwater equipment to the construction sea area, inject water into the compartment through the water intake tank, and adjust the draft depth of the underwater equipment;

[0024] When the draft of the underwater equipment reaches the designed draft, stop injecting water into the compartment, adjust the water storage unit by adjusting the structure to avoid instability, and complete the sinking adjustment of the underwater equipment;

[0025] When the underwater assembly needs to float, the water in the compartment is discharged through the drainage structure to make the underwater assembly float.

[0026] According to a method for adjusting a flotation device provided in the present application, the method for splicing multiple cells into a desired flotation device includes: inserting a boss on the circumferential side of a cell into a recess on the circumferential side of an adjacent cell to connect the adjacent cells as a whole, and sequentially connecting the remaining cells until a disc-shaped flotation device is formed.

[0027] According to a method for adjusting a flotation aid device provided in the present application, the method for adjusting a water storage unit to avoid instability by adjusting a structure includes: based on a motor in the water storage unit driving a baffle to move to a corresponding through-hole position to block the through-hole, so that adjacent water storage units are isolated from each other.

[0028] According to a method for adjusting a flotation aid device provided in the present application, the method for discharging water from a compartment through a drainage structure includes: controlling the on / off of adjacent water storage units through an adjustment structure, the drainage structure first discharging water from a water storage unit on a side that is more affected by waves by weight distribution, and performing the process in sequence until the water in all water storage units is discharged.

[0029] The advantages of the present application are as follows: 1. The structure of the flotation device of the present application is simple, and it is a structure formed by splicing multiple cells. The flotation device can be assembled according to the actual specifications of the underwater equipment for flotation, and it is highly targeted and can be applied to the buoyancy adjustment of offshore equipment construction in various scenarios. Moreover, the cell structure of the present application is simple, and the method of adjusting the buoyancy is very convenient. Multiple water storage units in the cell can effectively ensure the stability of the cell and the underwater equipment to be flotation, and there will be no instability problem. The water storage unit can be relatively independent, which can improve the safety of the device under risk conditions. Moreover, the buoyancy adjustment of the cell of the present application is achieved by water injection and drainage, which solves the problems of low buoyancy control accuracy and slow adjustment speed in conventional ballast water systems, and achieves accurate and rapid adjustment of the buoyancy of underwater equipment, which has great promotion value.

[0030] 2. The cell structure of the present application is simple, and multiple cells can be assembled into a disc-shaped flotation device, which is extremely convenient to assemble and disassemble, suitable for installation on underwater equipment, and has simple overall operation. The disc-shaped flotation device assembled from fan-shaped cells is easy to control, and has high buoyancy adjustment accuracy;

[0031] 3. The connection structure used to connect adjacent cells in the present application is very simple. The combination of the protrusion and the concave structure can realize the rapid assembly and connection of adjacent cells. The connection structure is convenient for installation and disassembly, and greatly improves the assembly efficiency of the flotation device;

[0032] 4. The present application sets a plurality of partitions in the water storage tank, and divides the water storage tank into a plurality of water storage units through the partitions. The plurality of water storage units are evenly arranged, and the stability of the entire compartment can be adjusted by controlling the on and off of adjacent water storage units, which can effectively deal with risk situations and avoid instability problems. At the same time, the partitions of the present application can enhance the structural stability and strength of the entire compartment;

[0033] 5. The method of controlling the on-off of adjacent water storage units in the present application is very simple. By setting through holes on the partitions and controlling the opening and closing of the through holes, the required on-off adjustment can be achieved. The overall control method is very simple and the operation is very convenient.

[0034] 6. The regulating structure of the present application includes a baffle and a driving motor for driving the baffle to move. The entire structure is simple and easy to operate. The closing and opening of the through hole is very simple, and the connection or isolation of adjacent water storage units can be quickly adjusted;

[0035] 7. The water inlet structure and drainage structure of the present application are separately placed at one end of the cell away from the center of the circle. Such an arrangement structure can improve the balance of the cell, so that the center of gravity of the cell is in the water storage tank, and the buoyancy adjustment of the cell is more convenient. In addition, the water inlet structure and drainage structure are located on the outside, and the water inlet and drainage are more efficient.

[0036] 8. The water inlet structure of the present application is provided with a water inlet pipe and a water diversion pipe. The two sets of water inlet pipe structures can avoid the failure of water inlet when one set has a problem. The water diversion pipe can be operated to inject water from the sea surface, and a more intuitive water injection operation can be performed when the water inlet pipe cannot inject water. The fault tolerance of the water inlet structure is better;

[0037] 9. The drainage structure of the present application includes a drainage pipe and an air duct. The air duct can achieve pressure balance in the entire compartment through gas regulation to ensure efficient water intake and drainage;

[0038] 10. The present application can configure an airbag structure at the bottom of the cell, and use the airbag in conjunction with the cell, combining the advantages of the two adjustment methods of changing volume and changing weight, making buoyancy adjustment more efficient and accurate;

[0039] 11. The present application also provides a buoyancy adjustment method, which can accurately adjust the flotation device, and the buoyancy adjustment is efficient and rapid, so as to quickly adjust the center of gravity, floating state and stability of the underwater equipment, thereby controlling the displacement and high-precision adjustment of the underwater equipment;

[0040] 12. The present application is very simple to assemble the flotation device. Through the snap-in connection between the boss and the concave portion, the adjacent compartments can be quickly spliced ​​and connected, and the assembly and disassembly are very convenient.

[0041] 13. The present application cuts off the connection between adjacent water storage units so that each water storage unit forms an independent small compartment. The water in the water storage unit no longer circulates, the center of gravity of the entire compartment is determined, and the stability is greatly improved, which can effectively ensure the stability of the compartment and the corresponding underwater equipment.

[0042] 14. The present application makes it very simple to discharge water from the compartment. The water in the water storage unit on the side that is more affected by the waves is first discharged to reduce the water by weight distribution. This allows the center of gravity to be closer to the side that is less affected by the waves, resulting in better stability.

[0043] The flotation-aiding device of the present application has a simple structure and is easy to use. It can adjust the buoyancy of underwater equipment with high precision and efficiency, effectively improving the stability and safety of underwater equipment adjustment. It has a wide range of applications and great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 : A top view of a flotation device composed of multiple compartments spliced ​​together in this application;

[0045] Figure 2 : Schematic diagram of the internal structure of the compartment of the present application;

[0046] Figure 3 : Schematic diagram of the arrangement of the baffle and the drive motor of the present application;

[0047] Figure 4 : Schematic diagram of the airbag and cell installation structure of the present application;

[0048] Among them: 1 - compartment; 2 - water intake compartment; 3 - drainage compartment; 4 - water storage compartment; 5 - partition; 6 - through hole; 7 - baffle; 8 - driving motor; 9 - water intake pipe; 10 - water diversion pipe; 11 - drainage pipe; 12 - air diversion pipe; 13 - air bag; DETAILED DESCRIPTION

[0049] The embodiments of the present application are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0050] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] The present application relates to a flotation-aiding device, which is mainly used for underwater equipment such as wave-breaking structures and semi-submersibles. Such underwater equipment is characterized by incomplete draft, which keeps part of the structure above the water surface. The present application installs the flotation-aiding device on such underwater equipment to change the buoyancy of the underwater equipment, thereby adjusting the immersion depth of the underwater equipment, or changing the waterline of such underwater equipment. The flotation-aiding device of the present application has a simple structure and is easy to use. It can adjust the buoyancy of underwater equipment with high precision and efficiency, effectively improving the stability and safety of underwater equipment adjustment, and has a wide range of applications.

[0054] Specifically, Figures 1 to 3 As shown, the flotation-aiding device of the present application includes multiple compartments 1, an adjusting structure, a water inlet structure and a drainage structure. The compartment 1 is a hollow closed cabin structure, and a water inlet tank 2, a drainage tank 3 and a water storage tank 4 are arranged in the compartment 1. The water storage tank 4 includes multiple water storage units, and the water inlet of the water storage tank 4 is connected with the water inlet tank 2, and the drainage tank 3 is connected with the drainage tank 3. Multiple compartments 1 are spliced ​​and connected to each other to form a flotation-aiding device of the required scale. The flotation-aiding device of the present application is made of multiple compartments 1. In actual use, the appropriate number of compartments 1 can be selected for splicing according to needs, so that it can be adaptively adjusted according to the specifications and buoyancy requirements of the underwater equipment, so that the flotation-aiding device has better adaptability.

[0055] The regulating structure is arranged in the water storage tank 4 to control the connection and disconnection of adjacent water storage units. Since there are multiple water storage units in the water storage tank 4 of the present application, each water storage unit can store water to adjust the buoyancy of the entire cell 1. At the same time, by adjusting the volume of water in the water storage units at different positions, the center of gravity of the entire cell 1 can be adjusted. Therefore, in actual use, the buoyancy and center of gravity of the cell 1 can be adjusted by adjusting the amount of water in the water storage unit. The regulating structure achieves the purpose of adjusting the buoyancy and center of gravity of the cell 1 by controlling the connection and disconnection of adjacent water storage units. When the adjacent water storage units are completely connected, the water levels in the adjacent water storage units are flush (the principle of communicating vessels), and the center of gravity of the adjacent water storage units is the center position of the two (assuming that the structures of the two water storage units are exactly the same). If the adjacent water storage units are not connected, the center of gravity of the two is biased towards the water storage unit with more water. If all the water storage units are connected, the entire water storage tank 4 forms a complete cabin structure, the water level in the cabin is consistent, and water can flow freely in the cabin, which is convenient for the water storage tank 4 to quickly fill with water or drain out. If all the water storage units are disconnected, multiple relatively independent water storage units are formed in the water storage tank 4, and the water in the water storage tank 4 cannot flow freely. For the entire water storage tank 4, the structure of the entire water storage tank 4 is stable, and the center of gravity is fixed. In this case, the structural stability of the water storage tank 4 is better and it is not easy to have instability problems.

[0056] The present application has two ways to change the buoyancy of the cell 1, namely, injecting water into the cell 1 through the water inlet structure and discharging water from the cell 1 through the drainage structure. The water inlet structure is arranged in the water inlet tank 2 for injecting water into the water inlet tank 2, and the drainage structure is arranged in the drainage tank 3 for discharging water from the drainage tank. When the buoyancy of the cell 1 is operated, the buoyancy is adjusted by both water inlet and drainage, which solves the problems of low buoyancy control accuracy and slow adjustment speed existing in conventional ballast water systems, and realizes accurate and rapid adjustment of the buoyancy of underwater equipment.

[0057] When the flotation device of the present application is actually used, multiple cells 1 are spliced ​​into the required flotation device, and the flotation device is fixedly connected to the underwater equipment; the flotation device and the underwater equipment are transported to the construction sea area, and water is injected into the cells 1 through the water inlet tank 2 to adjust the draft of the underwater equipment; when the draft of the underwater equipment reaches the designed draft, the injection of water into the cells 1 is stopped, and the water storage unit is adjusted by adjusting the structure to avoid instability, so as to complete the sinking adjustment of the underwater equipment;

[0058] When the underwater assembly needs to float, the water in the compartment 1 is discharged through the drainage structure to make the underwater assembly float.

[0059] In some embodiments of the present application, the present embodiment optimizes the above-mentioned compartment 1, specifically, as follows: Figure 1 and2 As shown, the cell 1 of this embodiment is a fan-shaped structure, and a plurality of cells 1 are spliced ​​into a disc-shaped or annular flotation device through a connecting structure. A fixing structure is provided on the cell 1 to facilitate fixed connection with corresponding underwater equipment. Figure 1 In the figure, 8 compartments 1 are assembled to form a disc-type flotation device. In actual application, it is not limited to this value. The corresponding number of compartments 1 can be selected for assembly according to the needs of underwater equipment. It is not necessary to form a disc-type flotation device structure, as long as it can meet the buoyancy adjustment function of the underwater equipment.

[0060] The cells 1 of this embodiment are connected by connecting structures during the assembly process. Figure 1 As shown, the connection structure includes a protrusion arranged on one side of the cell 1 in the circumferential direction and a recessed portion arranged on the other side of the cell 1 in the circumferential direction, and adjacent cells 1 are fixedly connected as a whole by the bosses being engaged in the corresponding recessed portions.

[0061] When assembling the flotation device, the boss on the circumferential side of the cell 1 is inserted into the concave on the circumferential side of the adjacent cell 1, so that the adjacent cells 1 are connected as a whole, and the remaining cells 1 are connected in sequence until a disc-shaped flotation device is formed. When installing the last cell 1, the cell 1 is directly pressed into the notch of the two adjacent cells 1 along the axial direction so that the boss is engaged with the concave.

[0062] In other embodiments of the present application, the structure of the water storage tank 4 is optimized. Specifically, Figure 2 As shown, a plurality of partitions 5 are arranged in the water storage tank 4, and the plurality of partitions 5 are cross-arranged in the radial and circumferential directions to divide the water storage tank 4 into a plurality of water storage units, and the two ends of the partitions 5 in the axial direction are fixedly connected to the top plate and the bottom plate of the cell 1 respectively. The partitions 5 divide the space in the water storage tank 4 into a plurality of independent water storage units, and each water storage unit is an independent cabin structure for storing water. The partitions 5 can also support the bottom plate and the top plate of the cell 1, and improve the structural strength of the entire cell 1. When dealing with extremely harsh conditions, the cell 1 can still be used stably and is not easily damaged.

[0063] In this embodiment, the partition plate 5 is provided with a through hole 6 for connecting adjacent water storage units, and the regulating structure controls the opening and closing of adjacent water storage units by controlling the opening and closing of the through hole 6. Specifically, the regulating structure includes a baffle 7 and a driving motor 8 installed in the water storage unit for driving the baffle 7 to cover the through hole 6 to isolate the adjacent water storage units or to remove the baffle 7 from the through hole 6 to connect the adjacent water storage units.

[0064] In this embodiment, a baffle 7 structure can be provided at each through hole 6, or a baffle 7 can be arranged at a selected through hole 6, for example, the water storage units are divided into multiple rows along the radial direction, and baffles 7 are arranged at the through holes between two adjacent rows of water storage units, but baffles 7 are not arranged on the through holes 6 in adjacent water storage units in the same row, and baffles 7 on the through holes 6 between two adjacent rows of water storage units are driven by a set of drive motors 8 to achieve either full opening or full closing operation; the water storage units can also be grouped along the circumferential direction, as long as the required on-off operation can be achieved. Alternatively, baffles 7 are provided at all through holes 6 positions, and a set of drive motors 8 are used to drive the operation of all baffles 7, so that either all water storage units are connected or all water storage units are isolated. When the water storage tank 4 needs to be filled with water or drained, all the baffles 7 are opened to quickly fill or drain the water storage tank 4; when the water storage tank 4 needs to be stabilized, all the through holes 6 in the water storage tank 4 are closed, all the water storage units are isolated from the adjacent water storage units, and the center of gravity of the water storage tank 4 is fixed and no longer changes with the movement of the water flow.

[0065] In the preferred embodiment of the present application, the water intake structure and drainage structure are optimized. The water intake tank 2 and drainage tank 3 of the present embodiment are respectively placed at the two ends of the circumference of the cell 1 away from the center of the circle in the radial direction. The water intake structure and drainage structure correspond to the water intake tank 2 and drainage tank 3 respectively. Therefore, the water intake structure and drainage structure are respectively placed at the two ends of the circumference of the cell 1 away from the center of the circle in the radial direction. Figure 2 It can be seen that the water inlet tank 2 and the drainage tank 3 are located on the side of the water storage tank 4 away from the center of the circle, and the cabin between the water inlet tank 2 and the drainage tank 3 is used to arrange the power supply equipment (the power supply equipment is used to supply power to the electrical equipment of the flotation device, such as the driving motor 8), and the water inlet tank 2 and the drainage tank 3 are cabin structures with a trapezoidal cross-section.

[0066] like Figure 2 As shown, the water inlet structure includes at least one water inlet pipe 9 and at least one water diversion pipe 10. One end of the water inlet pipe 9 is connected to the water inlet tank 2, and the other end is connected to the external seawater. The lower end of the water diversion pipe 10 is connected to the water inlet tank 2, and the upper end extends above the sea surface. The water inlet pipe 9 is used to introduce external seawater into the water inlet tank 2, and the seawater entering the water inlet tank 2 will automatically flow into the water storage tank 4. When the water inlet pipe 9 is damaged and cannot be used to inject water into the water inlet tank 2, water can be injected into the water inlet tank 2 through the water diversion pipe 10. The upper end of the water diversion pipe 10 is above the water surface, and other water injection structures can be connected to inject water into the water diversion pipe 10.

[0067] like Figure 2As shown, the drainage structure includes at least one drainage pipe 11 and at least one air bleed pipe 12. One end of the drainage pipe 11 is connected to the drainage compartment 3. A one-way valve is provided on the drainage pipe 11. The lower end of the air bleed pipe 12 is connected to the drainage compartment 3. The upper end extends above the sea surface to extract air from the compartment 1 when water enters the compartment 1 and to inject air into the compartment 1 when the compartment 1 is drained. The drainage pipe 11 is used to discharge the water in the drainage compartment 3 to the outside of the compartment 1. A one-way valve is provided on the drainage pipe 11 to allow the one-way flow of water from the drainage compartment 3 to the outside of the compartment 1, so as to prevent the external seawater from entering the drainage compartment 3 from the drainage pipe 11. The air duct 12 is a structure for balancing the internal pressure of the cell compartment 1. When the cell compartment 1 needs to be drained, air is introduced into the cell compartment 1 through the air duct 12, and the internal pressure of the cell compartment 1 rises, which promotes the discharge of water from the drainage tank 3. When the cell compartment 1 needs to be filled with water, air is pumped out through the air duct 12, the pressure in the cell compartment 1 is reduced, and the external seawater can quickly enter the cell compartment 1 from the water inlet pipe 9.

[0068] In other embodiments of the present application, Figure 4 As shown, in this embodiment, an airbag 13 with adjustable volume is arranged at the bottom of the cell 1. In this embodiment, the airbag 13 is arranged at the bottom of the cell 1, and the airbag 13 is used in conjunction with the cell 1, combining the advantages of the two adjustment methods of changing volume and changing weight, so that the buoyancy adjustment is more efficient and accurate. The airbag 13 of this embodiment is provided with two channels, an inflation channel for adjusting the volume of the airbag 13, and a monitoring channel for detecting the internal pressure of the airbag 13. By connecting a barometer to the monitoring channel of the airbag 13, air pressure monitoring can be performed to achieve control of the drainage volume.

[0069] When the flotation device of the present application is actually used, the following steps can be followed:

[0070] S1, inserting the boss on the circumferential side of the cell 1 into the concave on the circumferential side of the adjacent cell 1, so that the adjacent cells 1 are connected as a whole, and connecting the remaining cells 1 in sequence until a disc-shaped flotation device is formed, and the flotation device is fixedly connected to the underwater equipment;

[0071] S2. The buoyancy aid and underwater equipment are transported to the construction sea area, the water inlet pipe 9 and the air duct 12 are opened, the air duct 12 is sucked, and the water inlet pipe 9 introduces external seawater into the compartment 1. After the seawater fills all the water storage units, it is determined whether the seawater is filled by observing whether there is water in the air duct 12. It can also be detected by setting a sensor;

[0072] After the compartment 1 is filled with seawater, the water inlet pipe 9 and the air bleed pipe 12 are closed, and the underwater equipment sinks quickly;

[0073] S3. When the underwater equipment sinks to a depth close to the designed draft, the drain pipe 11 and the air pipe 12 are opened, and the air pipe 12 ventilates the compartment 1 to accelerate the drainage rate of the drain pipe 11. The water in the water storage unit is discharged to the outside of the compartment 1, and the buoyancy of the compartment 1 is increased. When the buoyancy and gravity of the compartment 1 and the underwater equipment reach a balance, the drain pipe 11 and the air pipe 12 are closed;

[0074] The gravity of the underwater equipment is fixed. When the gravity and buoyancy of the underwater equipment and the compartment 1 are equal, the underwater equipment can be maintained at the set draft depth, and the sinking adjustment of the underwater equipment is completed.

[0075] S4, after the underwater equipment reaches the required set draft depth, the motor in the water storage unit drives the baffle 7 to move to the corresponding through hole 6 position to block the through hole 6, so that the adjacent water storage units are isolated from each other. At this time, all water storage units become independent cabins, avoiding the instability problem caused by the change of center of gravity caused by the flow of water in the cabin;

[0076] Complete the adjustment process of underwater equipment.

[0077] When it is necessary to adjust the underwater equipment to float, the motor in the water storage unit drives the baffle 7 to move to no longer block the through hole 6, so that adjacent water storage units are connected to each other, and the water storage tank 4 becomes an integral cabin structure. The drain pipe 11 and the air pipe 12 are opened, and the air pipe 12 ventilates the compartment 1 to accelerate the drainage rate of the drain pipe 11, and the water in the water storage unit is discharged to the outside of the compartment 1 (first discharge the water in the water storage unit on the side that is more affected by the waves by weight distribution, and do it in sequence until the water in all the water storage units is discharged), the buoyancy of the compartment 1 is increased, driving the compartment 1 and the underwater equipment to float, and completing the floating adjustment of the underwater equipment.

[0078] like Figure 1 As shown, the circumference of this application is Figure 1 The circumferential direction of the disc-shaped flotation device in the present application refers to the axial direction. Figure 1 The axial direction of the disc-shaped flotation aid is the direction perpendicular to the paper, which is also the vertical direction of the present application.

[0079] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A flotation device, characterized in that: include, A plurality of compartments (1), wherein the compartments (1) are hollow closed cabin structures, and a water inlet compartment (2), a water discharge compartment (3) and a water storage compartment (4) are arranged in the compartments (1); the water storage compartment (4) comprises a plurality of water storage units, and the water inlet of the water storage compartment (4) is connected to the water inlet compartment (2), and the water discharge compartment (3) is connected to the water discharge compartment (3); the plurality of compartments (1) are spliced ​​and connected to form a flotation device of a required scale; An adjusting structure, the adjusting structure being arranged in the water storage tank (4) and used for controlling the on and off of adjacent water storage units; a water inlet structure, the water inlet structure being arranged in the water inlet tank (2) and being used for injecting water into the water inlet tank (2); A drainage structure is provided in the drainage compartment (3) and is used for draining water from the drainage compartment.

2. A flotation aid device as claimed in claim 1, characterized in that: The cell (1) is a fan-shaped structure, and a plurality of cells (1) are spliced ​​into a disc-shaped flotation device via a connecting structure.

3. A flotation aid device as claimed in claim 2, characterized in that: The connection structure comprises a protrusion arranged on one circumferential side of the cell (1) and a recessed portion on the other circumferential side of the cell (1); adjacent cells (1) are integrally connected by snapping the protrusions into the corresponding recessed portions.

4. A flotation aid device as claimed in claim 1, characterized in that: A plurality of partitions (5) are arranged in the water storage tank (4), and the plurality of partitions (5) are cross-arranged in radial and circumferential directions to divide the water storage tank (4) into a plurality of water storage units. The two ends of the partitions (5) in the axial direction are respectively fixedly connected to the top plate and the bottom plate of the cell (1).

5. A flotation aid device as claimed in claim 4, characterized in that: The partition plate (5) is provided with a through hole (6) communicating with adjacent water storage units; the regulating structure controls the opening and closing of adjacent water storage units by controlling the opening and closing of the through hole (6).

6. A flotation aid device as claimed in claim 5, characterized in that: The regulating structure comprises a baffle (7) and a driving motor (8) installed in the water storage unit and used for driving the baffle (7) to cover the through hole (6) so that adjacent water storage units are isolated or to remove the baffle (7) from the through hole (6) so that adjacent water storage units are connected.

7. A flotation aid device according to claim 1, characterized in that: The water inlet structure comprises at least one water inlet pipe (9) and at least one water diversion pipe (10); one end of the water inlet pipe (9) is connected to the water inlet tank (2), and the other end is connected to external seawater; the lower end of the water diversion pipe (10) is connected to the water inlet tank (2), and the upper end extends above the sea surface.

8. A flotation aid device as claimed in claim 7, characterized in that: The drainage structure comprises at least one drainage pipe (11) and at least one air bleed pipe (12); one end of the drainage pipe (11) is in communication with the drainage compartment (3), and a one-way valve is provided on the drainage pipe (11); the lower end of the air bleed pipe (12) is in communication with the drainage compartment (3), and the upper end extends above the sea surface for extracting air from the compartment (1) when water enters the compartment (1) and injecting air into the compartment (1) when water is discharged from the compartment (1).

9. A method for adjusting a flotation aid, characterized in that: The adjustment method is used to adjust any one of the flotation aids as claimed in claims 1 to 8, comprising: Splicing a plurality of compartments (1) into a required buoyancy-aiding device, and fixedly connecting the buoyancy-aiding device to underwater equipment; The buoyancy aid and the underwater equipment are transported to the construction sea area, and water is injected into the compartment (1) through the water intake tank (2) to adjust the draft depth of the underwater equipment; When the draft of the underwater equipment reaches the designed draft, stop injecting water into the compartment (1), adjust the water storage unit by adjusting the structure to avoid instability, and complete the sinking adjustment of the underwater equipment; When the underwater assembly needs to float, the water in the compartment (1) is discharged through the drainage structure, so that the underwater assembly floats.

10. A method for adjusting a flotation aid device according to claim 9, characterized in that: The method for discharging water from a cell (1) by means of a drainage structure comprises: controlling the on / off of adjacent water storage units by means of an adjustment structure, wherein the drainage structure first discharges water from a water storage unit on a side that is more affected by waves by weight distribution, and the process is repeated in sequence until the water in all water storage units is discharged.

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