An attitude-adjustable deep-sea aerodynamic cushion device and operation method

Abstract

An attitude-adjustable deep-sea pneumatic bottom-sitting cushioning device and its operating method are disclosed. The device includes a hull with a high-pressure air tank located at the stern. One end of the tank is connected to a solenoid valve (number 1) via a pipeline, and the other end extends to a main pipe. Three branch pipes branch from the main pipe. Two branch pipes symmetrically mount two sets of cylinders, and the middle branch pipe is connected to a high-pressure air hose via a solenoid valve (number 4). The piston rods of the cylinders are fixed to bottom-sitting support legs. These support legs extend from the hull and are connected to a bottom plate via hinges. The bottom of the bottom plate has holes. By connecting cylinders to the bow and stern bottom-sitting support legs of the deep-sea manned equipment, bottom-sitting cushioning is achieved. Compressed air from the high-pressure air tank is used to change the pressure within the bow and stern cylinders, adjusting the piston stroke and thus the height of the support legs, thereby adjusting the attitude of the deep-sea manned equipment when bottom-sitting.

Description

Technical Field

[0001] This invention relates to the field of deep-sea equipment technology, and in particular to an attitude-adjustable deep-sea pneumatic bottom-sitting buffer device and its operating method. Background Technology

[0002] 90% of the world's oceans are over 1,000 meters deep, making the deep sea a frontier for scientific, military, and economic competition.

[0003] Deep-sea manned equipment, such as manned submersibles and deep-sea operation platforms, consumes a lot of energy when hovering stably. By sitting on the bottom, energy consumption during long-term deep-sea operations can be reduced, and the equipment also offers better concealment. At the same time, deep-sea manned equipment can stay underwater for a long time, and sitting on the bottom can provide a more comfortable working and living environment for the crew.

[0004] Current deep-sea manned equipment all use relatively simple and reliable fixed landing supports. While these landing devices can meet basic landing functions, they have the following drawbacks:

[0005] It lacks a cushioning function. If the landing speed is too high, it may cause damage to the personnel and equipment inside the deep-sea manned equipment.

[0006] It lacks attitude adjustment capabilities. If the seabed has a certain slope, deep-sea manned equipment will tilt. A tilted attitude is detrimental to various operations and the work and life of personnel.

[0007] It lacks anti-adsorption capabilities. If deep-sea manned equipment sinks onto a soft sediment base, there is a risk that it will become stuck in the sediment and unable to come off the bottom.

[0008] To overcome the above deficiencies, this invention proposes a deep-sea pneumatic bottom-sitting buffer device with adjustable attitude. Summary of the Invention

[0009] In response to the shortcomings of the existing production technology, the applicant provides an adjustable deep-sea pneumatic bottom-sitting buffer device and its operation method, thereby achieving bottom-sitting buffering, attitude adjustment, and anti-adsorption functions upon leaving the bottom.

[0010] The technical solution adopted in this invention is as follows:

[0011] An attitude-adjustable deep-sea pneumatic bottom-sitting cushioning device includes a cabin. A high-pressure air tank is located at the stern of the cabin. One end of the high-pressure air tank is connected to a solenoid valve (number 1) via a pipeline. The inlet of the solenoid valve is connected to an air compressor on a support vessel. A main pipe extends from the other end of the high-pressure air tank, branching into three branch pipes. The first branch pipe connects, in series, a solenoid valve (number 2), a pressure-reducing valve (number 1), a solenoid valve (number 3), and a cushioning airbag (number 1). The output of the cushioning airbag is connected to a cylinder (number 1). The piston rod of the cylinder is fixed to a bottom-sitting support (number 1). The first seat support leg extends out of the cabin and is connected to the seat plate via the first hinge. The second branch pipe is equipped with the fourth solenoid valve, whose outlet branch is connected to the first and second high-pressure air hoses. The third branch pipe is connected in series with the fifth solenoid valve, the second pressure reducing valve, the sixth solenoid valve, and the second buffer airbag. The output end of the second buffer airbag is connected to the second cylinder. The piston rod of the second cylinder is fixed to the second seat support leg. The second seat support leg extends out of the cabin and is connected to the seat plate via the second hinge. The bottom of the seat plate has holes.

[0012] Its further technical solution lies in:

[0013] A support rod extends outward from the No. 1 seat support leg inside the cabin, and a right-angled No. 1 limiting baffle is installed inside the cabin at the position corresponding to the No. 1 support rod.

[0014] A second support rod extends outward from the second base support leg located inside the cabin, and a right-angled second limiting baffle is installed inside the cabin at the position corresponding to the second support rod.

[0015] High-pressure air hose No. 1 and high-pressure air hose No. 2 are arranged symmetrically.

[0016] Both the No. 1 and No. 2 high-pressure air hoses extend out of the cabin and connect to the interior of the seat base.

[0017] The holes are evenly spaced along the bottom surface of the base plate.

[0018] Each hole can be either round or square.

[0019] An operating method for an attitude-adjustable deep-sea pneumatic bottom-sitting cushioning device includes the following operating procedures:

[0020] During the preparation phase, first close all solenoid valves, connect the inlet end of solenoid valve No. 1 to the air compressor on the support vessel, turn on the air compressor, open solenoid valve No. 1, replenish the high-pressure air tank with air, and after replenishing the air to the set pressure, close solenoid valve No. 1, turn off the air compressor, and disconnect solenoid valve No. 1 from the air compressor.

[0021] Before bottoming out, open solenoid valves No. 2 and No. 5. Compressed gas enters the No. 1 buffer airbag and No. 1 cylinder in the stern through solenoid valve No. 2 and pressure reducing valve No. 1, and enters the No. 2 buffer airbag and No. 2 cylinder in the bow through solenoid valve No. 5 and pressure reducing valve No. 2, causing the No. 1 bottoming support leg and No. 2 bottoming support leg to extend.

[0022] When the platform is on the bottom, the negative buoyancy of the deep-sea manned platform underwater will cause the cylinders in the first and second cylinders at the bow and stern to move the first and second bottom-sitting support legs upward, thus achieving bottom-sitting cushioning.

[0023] When there is a slope on the seabed where the platform is seated, open the No. 2 solenoid valve. Compressed air enters the No. 1 buffer airbag and No. 1 cylinder in the stern through the No. 2 solenoid valve and the No. 1 pressure reducing valve, causing the No. 1 bottom-sitting support leg in the stern to extend outward. Open the No. 6 solenoid valve. Compressed air in the No. 2 buffer airbag and No. 2 cylinder in the bow flows out through the No. 6 solenoid valve, causing the No. 2 bottom-sitting support leg in the bow to retract inward, so that the deep-sea manned platform can still maintain a horizontal attitude on the slope.

[0024] After the adjustment is complete, close solenoid valve No. 2 and solenoid valve No. 6.

[0025] If seabed sediment adheres during the lift-off process, preventing the platform from lifting off, open the No. 4 solenoid valve. Compressed air enters the bottom plate through the No. 4 solenoid valve, the No. 1 high-pressure air hose, and the No. 2 high-pressure air hose. The compressed air then flows out through the bottom hole via the internal flow channel of the bottom plate, purging the adhered sediment, reducing the adhesion force, and enabling the deep-sea manned platform to lift off smoothly.

[0026] The beneficial effects of this invention are as follows:

[0027] This invention features a compact and rational structure, and is easy to operate. By connecting cylinders to the bow and stern support legs of the deep-sea manned equipment, it achieves bottom-sitting cushioning. Compressed air from a high-pressure tank is used to change the pressure within the bow and stern cylinders, adjusting the piston stroke and thus the height of the support legs, thereby allowing for attitude adjustment of the deep-sea manned equipment when bottom-sitting. A bottom-hole bottom plate structure is employed, and compressed air is introduced into the bottom plate. The compressed air flows through internal channels and exits from the bottom holes, purging sediment adsorbed on the bottom plate, reducing adhesion, and achieving an anti-adhesion function.

[0028] In addition, the present invention also has the following advantages:

[0029] 1) It has achieved the function of bottoming out and cushioning. Through the design of the pneumatic system, the use of pneumatic components such as cylinders has reduced the impact during the bottoming process and improved the safety of personnel and equipment in the deep-sea manned equipment.

[0030] 2) The attitude adjustment function is realized. Through the design of the bow and stern cylinders, the extension and retraction of the bow and stern bottom support legs can be controlled separately, realizing attitude adjustment after bottoming and suppressing pitch.

[0031] 3) It achieves the function of preventing adsorption from the bottom. By adopting a bottom plate with an internal compressed air flow channel and a blow-out port at the bottom, and using compressed air to blow away the adsorbed seabed sediments, the adsorption force is reduced and the ability to be removed from the bottom is effectively improved.

[0032] 4) The bottom legs can be fully retracted, giving the deep-sea manned platform a good hydrodynamic shape and improving navigation efficiency.

[0033] 5) The cylinder is equipped with a buffer air chamber, which can absorb pressure pulsations caused by the movement of the cylinder piston, thus helping to improve the service life of cylinder components. At the same time, it increases the cylinder cavity volume, making cylinder pressure adjustment more convenient.

[0034] 6) The bottom support legs and platform structure are equipped with baffles for limiting movement, which can prevent the cylinder from being directly subjected to force and damaged when bottoming on land or deck. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention.

[0036] Figure 2 This is a diagram showing the working state of the present invention.

[0037] The components are as follows: 1. Solenoid valve No. 1; 2. High-pressure air tank; 3. Solenoid valve No. 2; 4. Pressure reducing valve No. 1; 5. Solenoid valve No. 3; 6. Limiting baffle No. 1; 7. Buffer airbag No. 1; 8. Cylinder No. 1; 9. Solenoid valve No. 4; 10. Solenoid valve No. 5; 11. Pressure reducing valve No. 2; 12. Solenoid valve No. 6; 13. Buffer airbag No. 2; 14. Cylinder No. 2; 15. Limiting baffle No. 2; 16. Seat support leg No. 1; 17. Hinge No. 1; 18. High-pressure air hose No. 1; 19. High-pressure air hose No. 2; 20. Seat support leg No. 2; 21. Hinge No. 2; 22. Seat base plate; 23. Hole. Detailed Implementation

[0038] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0039] like Figure 1 and Figure 2As shown, the attitude-adjustable deep-sea pneumatic bottom-sitting cushioning device of this embodiment includes a cabin. A high-pressure air tank 2 is located at the stern of the cabin. One end of the high-pressure air tank 2 is connected to a solenoid valve 1 via a pipeline. The inlet end of the solenoid valve 1 is connected to an air compressor on the support vessel. A main pipe extends from the other end of the high-pressure air tank 2, with three branch pipes branching off from the main pipe. The first branch pipe is connected in series with a second solenoid valve 3, a first pressure-reducing valve 4, a third solenoid valve 5, and a first cushioning airbag 7. The output end of the first cushioning airbag 7 is connected to a first cylinder 8. The piston rod of the first cylinder 8 is fixed to a first bottom-sitting support leg 16. After extending from the cabin, the seat plate 22 is connected via hinge 17. Solenoid valve 9 is installed on the second branch pipe. The outlet of solenoid valve 9 is branched into high-pressure air hose 18 and high-pressure air hose 19 via pipelines. Solenoid valve 5, pressure reducing valve 11, solenoid valve 6, and buffer airbag 13 are connected in series on the third branch pipe. The output of buffer airbag 13 is connected to cylinder 14. The piston rod of cylinder 14 is fixed to seat support leg 20. After extending from the cabin, seat support leg 20 is connected to seat plate 22 via hinge 21. Hole 23 is provided at the bottom of seat plate 22.

[0040] A support rod extends outward from the No. 1 seat support leg 16 located inside the cabin, and a right-angled No. 1 limiting baffle 6 is installed inside the cabin at the position corresponding to the No. 1 support rod.

[0041] A second support rod extends outward from the second bottom support leg 20 located inside the cabin, and a right-angled second limiting baffle 15 is installed inside the cabin at the position corresponding to the second support rod.

[0042] High-pressure air hose 18 and high-pressure air hose 19 are arranged symmetrically.

[0043] Both the No. 1 high-pressure air hose 18 and the No. 2 high-pressure air hose 19 extend out of the cabin and connect to the interior of the seat plate 22.

[0044] Holes 23 are evenly spaced along the bottom surface of the base plate 22.

[0045] Each hole 23 is set to be either round or square.

[0046] In actual work process:

[0047] During the preparation phase, close all solenoid valves, connect the inlet of solenoid valve 1 to the air compressor on the support vessel, turn on the air compressor, open solenoid valve 1, and replenish the high-pressure air tank 2 with air. After replenishing the air to the set pressure, close solenoid valve 1, turn off the air compressor, and disconnect solenoid valve 1 from the air compressor.

[0048] Before bottoming out, open solenoid valve 3 (number 2) and solenoid valve 10 (number 5). Compressed gas enters the first buffer airbag 7 and the first cylinder 8 in the stern through solenoid valve 3 (number 2) and pressure reducing valve 4 (number 1). It then enters the second buffer airbag 13 and the second cylinder 14 in the bow through solenoid valve 10 (number 5) and pressure reducing valve 11 (number 2), causing the first bottoming support leg 16 and the second bottoming support leg 20 to extend.

[0049] When the platform is on the bottom, the negative buoyancy of the deep-sea manned platform underwater will cause the cylinders in cylinder 8 (bow and stern) and cylinder 14 (stern) to move the first bottom support leg 16 and the second bottom support leg 20 upward, thus achieving bottom cushioning.

[0050] When the seabed has a slope, opening solenoid valve 3 allows compressed air to enter the stern's first buffer airbag 7 and first cylinder 8 via solenoid valve 3 and pressure reducing valve 4, causing the stern's first bottom-sitting support leg 16 to extend outwards. Opening solenoid valve 12 allows compressed air from the bow's second buffer airbag 13 and second cylinder 14 to flow out via solenoid valve 12, causing the bow's second bottom-sitting support leg 20 to retract inwards, ensuring the deep-sea manned platform maintains a horizontal attitude even on slopes. Figure 2 As shown. After adjustment, close solenoid valve 3 (number 2) and solenoid valve 12 (number 6).

[0051] If seabed sediments adhere during the lift-off process, preventing the platform from lifting off, open solenoid valve 9 (number 4). Compressed air enters the base plate 22 through solenoid valve 9, high-pressure air hose 18 (number 1), and high-pressure air hose 19 (number 2), and flows out through the bottom hole 23 via the internal flow channel of the base plate 22. This blows away the adhered sediments, reduces the adhesion force, and allows the deep-sea manned platform to lift off smoothly.

[0052] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A dynamically positioned deep sea aerodynamic cushioned buoyant device comprising a hull, characterised in that: A high-pressure gas tank (2) is installed at the stern of the cabin. One end of the high-pressure gas tank (2) is connected to a solenoid valve (1) via a pipeline. The inlet end of the solenoid valve (1) is connected to the air compressor on the support vessel. The other end of the high-pressure gas tank (2) extends into a main pipe, which branches into three branch pipes. The first branch pipe is connected in series with a second solenoid valve (3), a first pressure reducing valve (4), a third solenoid valve (5), and a first buffer airbag (7). The output end of the first buffer airbag (7) is connected to a first cylinder (8). The piston rod of the first cylinder (8) is fixed with a first bottom support leg (16). The first bottom support leg (16) extends out of the cabin and is connected to a first hinge (17). Seat base plate (22); The fourth solenoid valve (9) is installed on the second branch pipe. The outlet end of the fourth solenoid valve (9) is branched into the first high-pressure air hose (18) and the second high-pressure air hose (19) through the pipeline. The third branch pipe is connected in series with the fifth solenoid valve (10), the second pressure reducing valve (11), the sixth solenoid valve (12) and the second buffer airbag (13). The output end of the second buffer airbag (13) is connected to the second cylinder (14). The piston rod of the second cylinder (14) is fixed with the second seat base support leg (20). After the second seat base support leg (20) extends out of the cabin, it is connected to the seat base plate (22) through the second hinge (21). The bottom of the seat base plate (22) is provided with a hole (23). Both the No. 1 high-pressure air hose (18) and the No. 2 high-pressure air hose (19) extend out of the cabin and connect to the interior of the seat plate (22); The holes (23) are evenly spaced along the bottom surface of the base plate (22).

2. A dynamically positioned deep water air cushion bottom supported buoyant device according to claim 1, wherein: A first support rod extends outward from the first bottom support leg (16) located inside the cabin, and a right-angled first limiting baffle (6) is provided inside the cabin at the position corresponding to the first support rod.

3. The attitude-adjustable deep-sea pneumatic bottom-sitting buffer device as described in claim 1, characterized in that: A second support rod extends outward from the second bottom support leg (20) located inside the cabin, and a right-angled second limiting baffle (15) is installed inside the cabin at the position corresponding to the second support rod.

4. The attitude-adjustable deep-sea pneumatic bottom-sitting buffer device as described in claim 1, characterized in that: The No. 1 high-pressure air hose (18) and the No. 2 high-pressure air hose (19) are arranged symmetrically.

5. The attitude-adjustable deep-sea pneumatic bottom-sitting buffer device as described in claim 1, characterized in that: Each hole (23) is set to be either circular or square.

6. A method for operating the attitude-adjustable deep-sea pneumatic bottom-sitting buffer device as described in claim 1, characterized in that: The following operational procedures are included: During the preparation phase, first close all solenoid valves, connect the inlet end of solenoid valve (1) to the air compressor on the support ship, turn on the air compressor, turn on solenoid valve (1), replenish the high pressure tank (2) with air, after replenishing the air to the set pressure, turn off solenoid valve (1), turn off the air compressor, and disconnect solenoid valve (1) from the air compressor. Before the bottom is seated, open the No. 2 solenoid valve (3) and the No. 5 solenoid valve (10). Compressed gas enters the No. 1 buffer airbag (7) and the No. 1 cylinder (8) in the stern through the No. 2 solenoid valve (3) and the No. 1 pressure reducing valve (4). It then enters the No. 2 buffer airbag (13) and the No. 2 cylinder (14) in the bow through the No. 5 solenoid valve (10) and the No. 2 pressure reducing valve (11), causing the No. 1 bottom support leg (16) and the No. 2 bottom support leg (20) to extend. When the platform sits on the bottom, the negative buoyancy of the deep-sea manned platform underwater will cause the cylinders in the first cylinder (8) and the second cylinder (14) at the bow and stern to move the first bottom-sitting support leg (16) and the second bottom-sitting support leg (20) upward to achieve bottom-sitting cushioning. When there is a slope on the seabed where the platform sits, open the second solenoid valve (3), and compressed air enters the first buffer airbag (7) and the first cylinder (8) in the stern through the second solenoid valve (3) and the first pressure reducing valve (4), causing the first bottom support leg (16) in the stern to extend outward; open the sixth solenoid valve (12), and the compressed air in the second buffer airbag (13) and the second cylinder (14) in the bow flows out through the sixth solenoid valve (12), causing the second bottom support leg (20) in the bow to retract inward, so that the deep-sea manned platform can still maintain a horizontal attitude on the slope; After the adjustment is completed, close the No. 2 solenoid valve (3) and the No. 6 solenoid valve (12). If seabed sediments adhere during the lift-off process, preventing the platform from lifting off, open the No. 4 solenoid valve (9). Compressed air enters the bottom plate (22) through the No. 4 solenoid valve (9), the No. 1 high-pressure air hose (18), and the No. 2 high-pressure air hose (19), and flows out through the bottom hole (23) through the internal flow channel of the bottom plate (22) to blow away the adsorbed sediments, reduce the adsorption force, and enable the deep-sea manned platform to lift off smoothly.

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