WO2023040062A1

WO2023040062A1 - Frame type floating island having air bag, semi-submerged ship, and semi-submerged ship control method

Info

Publication number: WO2023040062A1
Application number: PCT/CN2021/135007
Authority: WO
Inventors: 巩庆涛; 滕瑶; 神克常; 李康强; 胡鑫; 刘璐; 孙忠玉; 王刚; 金丽妍; 张洋
Original assignee: 鲁东大学
Priority date: 2021-09-16
Filing date: 2021-12-02
Publication date: 2023-03-23
Also published as: CN113895570B; CN113895570A

Abstract

The present invention relates to the field of ship design and manufacturing, and relates to a frame type floating island having an air bag (5), comprising a floating island frame (3) and the air bag (5) fixedly mounted on the floating island frame (3). The air bag (5) comprises a clamping sleeve type inflation/deflation pipe connector, and the clamping sleeve type inflation/deflation pipe connector is connected to an air source by means of an air pipe. The present invention further relates to a semi-submerged ship, comprising a main ship body, a large fixed floating box (2), and the frame type floating island having the air bag (5). The present invention further relates to a semi-submerged ship lifting/lowering control method. The present invention has the beneficial effects that the contradictory relationship among a submerging depth, the overall gravity center of the semi-submerged ship, and the windward side of a device can be effectively solved, such that the overall gravity center of the semi-submerged ship can be effectively lowered, the windward side of the floating island can be greatly lowered, and the maximum submerging depth of the semi-submerged ship is effectively increased; and meanwhile, the body weight and construction costs of the semi-submerged ship are reduced, and the safety of ship operation is improved.

Description

A frame-type floating island with an air bag, a semi-submersible ship and a control method for a semi-submersible ship

technical field

The invention relates to the field of ship design and manufacture, and relates to a semi-submersible ship, in particular to a frame-type floating island with an air bag, and a semi-submersible ship equipped with the frame-type floating island.

Background technique

Semi-submersible ship, also known as semi-submersible mother ship, is a special engineering ship for the transportation of large structures at sea. Its main working process is: first, make the semi-submersible ship dive to the required draft, float the cargo to be loaded above the main deck of the ship, and then float up. After fixing the cargo to the destination, the ship is sunk again to the required depth, and the loaded cargo is disassembled and floated out. In order to complete the above actions, there are usually multiple ballast tanks inside the hull, and the diving and floating during loading and unloading operations are completed by injecting ballast water and discharging ballast water.

In the past, when the semi-submersible ship dived for unloading operations, the bottom and tail of the ship had to sit on the seabed level, and the reaction force of the seabed was used to support the gravity of the cargo. Therefore, divers were required to go into the water to check the bottom of the ship, and there were also requirements for the water depth. The current semi-submersible boat has undergone technological improvement. By adding a buoyancy box to the hull, it is also called a floating island. Specifically, it can be seen on the left and right sides of the bow and the stern, or two movable floating islands, so that the boat The body can dive smoothly with a horizontal attitude, and adjust the floating state of the semi-submersible ship when it is loaded. At present, the floating islands of semi-submersible ships are all box-type structures. The disadvantages of this structure are very obvious: 1. Usually, the windward side is relatively large, which will produce obvious overturning moments caused by wind loads; 2. The center of gravity of floating islands is relatively small. High, when the ship rolls, the overturning moment due to inertia is relatively large. Both of the above-mentioned shortcomings will have a fundamental impact on the stability of the ship.

technical problem

With the expansion of semi-submersible ship transportation and use scenarios, the lower diving depth can no longer meet the needs of some practical work. At present, the most common semi-submersible ship dives to a depth of 5-30 meters. And if want to reach greater diving depth, the volume of floating island needs to be increased accordingly to provide greater reserve buoyancy support, and since the floating islands are basically all above the waterline in the loading state, too large volume Floating islands have a considerable height, sometimes as high as 50 meters or so. At this time, the defects of conventional box-type floating islands will be magnified. The results obtained through simulation show that the overturning moment caused by wind load and swaying is easy to stabilize it. It is a destructive cause that seriously affects the work safety of semi-submersible ships.

In a prior art solution, the number of floating islands is increased to reduce the height of each floating island, so as to solve the problem of an excessively high center of gravity, and the windward area is rationally optimized by using a specific arrangement of floating islands. However, this method will reduce the actual effective use area of the deck of the semi-submersible ship, reduce the diversity of cargo types, and increase the difficulty of moving the floating island in some movable floating island ship designs.

It can be seen that, in the existing technology, in order to increase the submerged depth of the semi-submersible ship, it is basically only possible to find a balance between the longitudinal volume and the lateral volume of the floating island. due to known technical defects.

Reference 1: "History and Prospect of Semi-submersible Ship Development"

Reference 2: "Development Prospects of Large Semi-submersible Vessels"

Reference 3: "Semi-submersible Ship Type Characteristics and Development Prospects"

Reference Patent 1: Chinese Invention CN202110446320.X "Multifunctional Autonomous Semi-submersible Ship"

Reference Patent 2: Chinese Utility Model CN201520168567.X "A Semi-submersible Ship"

Reference patent 3: Chinese Invention CN201810016097.3 "A Method for Renovating a Semi-submersible Ship's Floating Tank".

technical solution

The purpose of the present invention is to make appropriate and valuable improvements to the semi-submersible ship structure in the prior art, so as to solve or help solve several technical problems and technical contradictions in the prior art.

In order to achieve the above object, the present invention provides the following multiple technical solutions:

Technical solution 1: A frame-type floating island with an airbag, characterized in that it includes a floating island frame, and an airbag fixedly installed on the floating island frame; The ferrule type inflation and deflation pipe connector is connected with the air source through the air pipe.

The design idea of the present invention is to change the originally rigid buoyancy cavity into a flexible buoyancy cavity, that is, to replace the original three-dimensional structure of the steel plate with an airbag that can be inflated and deflated, so that the frame-type floating island can The semi-submersible ship changes its shape under different conditions, which will bring variability to the windward side, center of gravity and other factors.

The function of the floating island frame is to provide space support for the airbag, so that it can be reasonably arranged in a predetermined space range, and maintain a stable position and state when the airbag is subjected to buoyancy and water pressure. The air source is connected to the ferrule-type inflation and deflation pipe joint of the air bag through the air tube. The air source can not only inflate the air bag, but also realize the deflation action of the air bag at the same time according to the selected different types of specific air sources. The number of airbags is at least one, usually multiple, in multiple rows and/or in multiple columns, uniformly arranged on the same plane, and also forms a square structure in three-dimensional space.

When the semi-submersible ship is in normal sailing, you can choose to fully deflate the airbag or further retract it to ensure that the frame-type floating island has the minimum windward surface, minimum mass and minimum center of gravity; when the semi-submersible ship is in the diving stage, There is an option to fully inflate the bladder to return it to its actual function of providing buoyancy to the semi-submersible. Among the above design schemes, since the frame-type floating island has a lighter weight than the three-dimensional structure of the steel plate in the case of equal width and height, the frame-type floating island can be designed according to the deeper dive depth of the semi-submersible ship, and the appropriate Increase its own height, in this case still has a very small windward side, and a lower overall center of gravity of the semi-submersible vessel.

Technical solution 2 obtained by optimizing technical solution 1: the frame-type floating island with airbags further includes a box-shaped base, and the frame of the floating island is fixed above the box-shaped base.

The box-shaped base can provide a certain ballast tank to facilitate the overall buoyancy balance of the frame-type floating island, reduce the working strength of the structure, and make it easier to adjust the floating state of the semi-submersible ship.

Technical solution 3 obtained by optimizing technical solution 1: the frame of the floating island is a truss structure, the airbag is located within the encirclement of the truss structure; Tensioned restraining cords are provided in the gap area.

The purpose of designing the floating island frame as a truss structure is to make the overall structure of the floating island frame more stable, have very few windward sides, limit the displacement and bending of the airbag, and provide a restoring moment for the airbag. More preferably, the truss structure is symmetrically arranged around the airbag. When there are multiple airbags, the restricting rope is used to restrict the relative positions of the multiple airbags, and to ensure that each individual airbag is restricted at its designated position.

Technical solution 4 obtained by optimizing technical solution 1: the floating island frame includes at least two airbag-fixed horizontal truss panels; when there are two airbag-fixed horizontal truss panels, the airbag-fixed horizontal truss panels are respectively on the top and bottom of the floating island frame; when there are more than two airbag-fixed horizontal truss plates, the airbag-fixed horizontal truss plates are respectively placed on the top, bottom and middle of the floating island frame; Both ends of the airbag are respectively fixed on two adjacent horizontal truss plates for fixing the airbag.

The role of the airbag fixing water balance plate is to provide a more effective space for the airbag to fix the anchor point. The airbag can be stably fixed on the floating island frame in a vertical form, and when there are multiple airbags, it can effectively ensure that the central section of each airbag on the same level. When the number of airbag-fixed horizontal balance boards is two, the total number of rows of airbags in the vertical direction is one row; and when the number of airbag-fixed water balance boards is n, where n is greater than 2, the total number of rows of airbags in the vertical direction is The number is n-1 rows, which can effectively reduce the height of each airbag, reduce the water pressure of a single airbag, increase the overall inflation speed of the airbag, and reduce the difficulty of controlling the space shape of each airbag.

Technical solution 5 obtained by optimizing technical solution 4: the airbag tip slot is fixedly installed on the airbag fixing horizontal truss plate, and the two ends of the airbag are correspondingly fixed on the airbag tip in the upper and lower directions On the card slot; on the card slot at the tip of the airbag, there is a hole for the trachea to communicate or pass through; wherein, if the trachea is connected to the hole, the clip-type filling and discharging of the airbag The trachea joint is airtightly connected to the pore; if the trachea passes through the pore, the trachea is directly connected to the ferrule-type inflation and deflation pipe joint.

Since both ends of the airbag usually have constricted tapered structures, as the cross-sectional area decreases, the buoyancy and restoring moment provided will gradually decrease. When the airbag tip slot is designed, the end of the airbag can be fixedly installed in the slot of the airbag tip slot to make up for the above-mentioned deficiency, thereby meeting the stability requirement.

Technical solution 6 obtained by optimizing technical solution 5: the airbag tip slot has a tapered groove body, the two ends of the airbag have a tapered structure, and the two ends of the airbag with a tapered structure are fixed Fitted into the tapered groove.

The purpose of this design scheme is to provide a more fitting supporting environment for the end of the airbag, which is more conducive to effectively maintaining the spatial position of the airbag, and at the same time has a positive effect on building a better airtight effect at the end of the airbag.

Technical solution 7 obtained by optimizing technical solution 1: at least one airbag fixing sleeve is arranged between two adjacent airbag fixing horizontal truss plates, and the airbag fixing sleeve is fixedly connected to the floating island frame superior.

Due to the flexible nature of the airbag itself, even if there is a large internal pressure, the airbag that is too long is easy to deform or collapse in the middle. The purpose of setting the airbag fixing sleeve is to further fix the spatial position of the airbag, especially the reserved interface in the middle of the airbag, so as to reduce the influence of the water flow of the airbag in the underwater environment and prevent the extrusion between the airbags.

Technical solution 8: a semi-submersible ship, characterized in that it includes a main hull, a large fixed buoy and a frame-type floating island with an air bag as claimed in any one of claims 1 to 7; the main hull is composed of at least one The main body of the ship is composed of at least one ballast tank inside the main body, the large fixed floating tank is fixedly installed on at least one of the main body of the ship, and the frame-type floating island with air bags is permanently fixed, detachably fixed or slidingly fixed mounted on at least one of said hulls.

The main hull can be a single-deck type or a spliced deck type. The spliced deck type means that the main hull includes a plurality of ship bodies, and each ship body is connected in series or in parallel. The large fixed pontoon can be set separately or can be built as a whole with the building on the ship. Possibilities for changing positions of framed floating islands with airbags can vary depending on how they are connected to the main body of the ship. When it is permanently fixed, it can be realized by welding connection, and the frame floating island cannot move freely on the main body of the ship; while the detachable fixing makes it possible to arrange artificially according to the specific position, which is realized by bolt connection; sliding fixed installation It can be arranged to slide and lock according to the set sliding track, which is realized through the connection of sliding card slots.

Technical solution 9: a lifting control method for a semi-submersible ship, characterized in that it includes a diving phase and a floating phase;

Wherein said submerged stage comprises the following several steps:

a. Connect the trachea to the ferrule-type inflation and deflation pipe connector of the airbag, and use the air source to inflate the airbag;

b. Continue to inflate until the air pressure in the airbag reaches the rated air pressure, stop inflating and seal the airbag; the formula for calculating the rated air pressure is P=(G*9.8)/(N*π*R ² /4)/1000, where P is the rated work Air pressure, in MPa; G is the jacking weight, in t; N is the number of airbags, in unit; R is the diameter of the pressure-bearing surface of a single airbag, in m; π is the pi;

c. Continuously inject ballast water into the ballast tank of the main body of the ship. At this time, the semi-submersible ship gradually dives slowly until it reaches the set diving depth, and the diving stage ends;

Described floating phase comprises the following several steps:

d. Continue to discharge the ballast water in the ballast tank of the main body of the ship. At this time, the semi-submersible ship gradually floats up slowly until it reaches the set draft height;

e. Deflate the airbag until it is empty, and the floating stage is over.

Technical solution 10 obtained by optimizing technical solution 9: a semi-submersible ship lifting control method, which is characterized in that it includes a diving stage and a floating stage;

Wherein said submerged stage comprises the following several steps:

a. Seal and fix both ends of the airbag on the airbag tip slot of the corresponding airbag-fixed horizontal truss plate, in which the sleeve-type inflation and discharge pipe joint of the airbag is air-tightly connected with the hole of the airbag-fixed water balance plate, and then connect the trachea to the hole , and then use the air source to inflate the airbag, and stop inflating when the shape of the airbag reaches the nominal size; where the nominal size is the expanded size of the airbag cylinder, and the diameter and height are represented by R and h , respectively, in m;

b. Fix at least one intermediate reserved interface of the airbag body to the adjacent truss structure and/or restraining ropes by means of fasteners (such as buckles or anti-theft buckles and other female-female interfaces);

c. Restart the inflation action of the airbag until the air pressure in the airbag reaches the rated air pressure, stop inflating and seal the airbag;

d. Continuously inject ballast water into the ballast tank of the main body of the ship. At this time, the semi-submersible ship gradually dives slowly until it reaches the set diving depth, and the diving stage ends;

Described floating phase comprises the following several steps:

e. Continue to discharge the ballast water in the ballast tank of the main body of the ship. At this time, the semi-submersible ship gradually floats up slowly until it reaches the set draft height;

f. Deflate the airbag until it is empty;

g. Disassemble the fixing parts on the airbag, and make the airbag disengage from all or the upper airbag tip slots and then recover, and the floating stage is over.

Beneficial effect

Compared with prior art, the beneficial effect of the present invention is:

It can effectively solve the contradictory relationship among the diving depth, the overall center of gravity of the semi-submersible ship and the windward side of the device. It can not only effectively reduce the overall center of gravity of the semi-submersible ship, but also greatly reduce the windward side of the floating island, and effectively improve The maximum diving depth of the semi-submersible ship reduces the body weight and construction cost of the semi-submersible ship, and increases the safety of ship operation.

Description of drawings

Fig. 1 is a side structure schematic diagram of a semi-submersible ship with a frame type floating island with an air bag according to the present invention.

Fig. 2 is a sectional view of the side structure of the semi-submersible ship in Fig. 1 .

Fig. 3 is a cross-sectional view of the top view structure of the semi-submersible ship in Fig. 1 .

Fig. 4 is a schematic diagram of an enlarged structure of part a of Fig. 3 .

Fig. 5 is an enlarged structure physical diagram of the semi-submersible ship airbag.

Wherein, reference sign is:

1. The main body of the ship;

2. Large fixed floating tank

3. Floating island frame

4. Truss structure

5. Airbag

6. Box base

7. Restrain the rope

8. Airbag fixed horizontal truss plate

9. Airbag tip slot

10. Tapered trough

11. Airbag fixing sleeve.

Embodiments of the present invention

In order to enable readers to better understand the design purpose of the present invention, the following specific embodiments are provided, so that readers can vividly understand the structures, structural components, functional principles and technical effects involved in the present invention. However, it should be noted that the following embodiments are not limitations to the technical solution of the present invention. Those skilled in the art may make a series of deformations and modifications to the technical solution provided by the present invention in combination with existing knowledge while analyzing and understanding the various embodiments. Equivalent replacement, the new technical solution obtained by the deformation and equivalent replacement is also included in the present invention.

Since the embodiments of the present invention cannot be exhaustive, some preferred technical features and preferred technical solutions can be reasonably replaced or combined with each other, and the resulting new technical solutions are also included in the present invention.

Readers should understand that after readers read the content of the examples and understand the gist of the present invention, a series of deformations, equivalent replacements, combinations of characteristic elements, etc. made according to the provided embodiments should be understood as included in the within the spirit of the present invention.

In order to enable readers to better understand the gist of the present invention, the most representative examples are given for illustration. Readers should have general technical knowledge in this field when reading, so as to facilitate and accurately understand the logical relationship contained therein.

Readers should pay special attention to the fact that the drawings corresponding to specific implementations exist in the form of aiding understanding, which can facilitate readers to fully understand the abstract high-level concept of the technical concept involved in the present invention by understanding the specific and visualized low-level concept . When comprehending the present invention as a whole and comparing it with other technical solutions other than the technical solutions provided by the present invention, the appearance of the accompanying drawings should not be used as the only reference basis, and after understanding the concept of the present invention, according to A series of deformations, equivalent replacements, blending of characteristic elements, deletion and reorganization of non-essential technical characteristic elements, reasonable addition and reorganization of non-essential technical characteristic elements common in the prior art, etc. All should be understood as included within the spirit of the present invention.

Since the present invention cannot exhaustively list the technical solutions, the following situations should also be understood as being included in the spirit of the present invention:

1. When its structure utilizes basically the same principle as the technology of the present invention, or realizes the function basically the same as the technology of the present invention, or obtains the beneficial effects basically the same as the technology of the present invention, its structure If the modification or deformation mode is a common means in the technical field or a very close technical field, its structure is included in the spirit of the present invention.

2. The beneficial effects involved in this specific embodiment point to the specific structural features in the specific embodiments cited, and this beneficial effect can be: the lower income included by the purpose of the present invention; it can also be a new income, that is, by the upper concept The inevitable income obtained from the extended specific subordinate structure. Although its beneficial effect brought by its structure does not correspond or not completely correspond to the above-mentioned beneficial effect mentioned in the embodiment or the beneficial effect clearly pointed out according to the purpose of the present invention, its beneficial effect can be designed according to the present invention When the idea and purpose are reasonably derived, its structure is included in the spirit of the present invention.

Example 1

Referring to Fig. 1～5, this example illustrates the realization method of the present invention with 60m semi-submersible ship as example. The design of this project requires a maximum diving depth of 50m. In addition to conventional towage work, missiles can also be launched underwater. Ship main body 1 is long 60m in this example, wide 35m, molded depth 6m. Big fixed floating tank 2 is long 8m, wide 5m. The floating island frame 3 of the frame-type floating island with airbag 5 is 8m long and 6m wide, and each layer is placed with a diameter of 2m and 512 special high-pressure airbags with a height of 15m. When the semi-submersible boat dives, due to the pressure of the external seawater, it is necessary to consider the pressure difference of the internal pressure when inflating. Because the gas pressure inside the airbag 5 is consistent in the height direction, but the external water pressure decreases with the increase of the height, so the length of the airbag 5 should not be too large, the highest is no more than 2.5 times the circumference of the airbag (2.5 *π*diameter=2.5*3.14*2 is approximately equal to 15m), when the height of the airbag 5 is 15m, the pressure difference inside the airbag 5 can reach up to 0.15MPa, which exceeds the pressure range of the standard high-pressure airbag 5, so in Under the condition of not lowering the height of the airbag 5, a customized high-pressure airbag 5 should be used to meet the design requirements. According to the design requirements, the semi-submersible ship must have a reserve buoyancy of 5% in the submerged state. According to the displacement when diving 50m, and the water surface area at this position, according to the buoyancy formula (F _float = G _row , the calculation formula is: F _float = ρ _liquid gV _row , where F _float is buoyancy, the unit is N, ρ The liquid represents the density of the liquid, the unit is kg/m ³ ; g=9.8N/kg, 10N/kg can be used for rough calculation; the V _row represents the volume of the displaced liquid, the unit is m ³ ) the required floating island can be calculated The height of the upper part is 6m. Considering a certain design margin, the reserve buoyancy of 6.5m is taken from the upper part of the floating island. From this calculation, the total height of the floating island is 50.5m, and there are three floors. Among them, the main hull provides the buoyancy of the semi-submersible ship, and loads deck cargo, or provides various functions that the rest of the ship has. The main hull includes the main body 1, and the main body 1 mainly includes ballast tanks and pump rooms, which provide ballast water when diving, and ballast pumps, ballast water pipes, vent pipes, personnel passages and consumption pumps for installing ballast systems wait. According to the design requirements, the semi-submersible vessel needs to be able to dive or float 1.5m per hour, and have a 25% margin, so it can be calculated that the total pump displacement required is 3937m ³ /h. According to the specifications of the existing pumps, two ballast pumps of 2200m ³ /h or five ballast pumps of 810m ³ /h are selected. Also, based on these data, the dimensions of the corresponding ballast mains, branch pipes of each ballast tank, etc. can be calculated. Because the air pipe of the ballast system will reach above the dry chord deck, the large fixed buoyancy tank 2 has the effect of bearing the air pipe of the ballast system. On the large fixed buoyancy tank 2, there are related systems of generating sets to provide electric power for the semi-submersible ship, including main generating sets, fuel oil, lubricating oil, fuel pumps, lubricating oil pumps, fans, switchboards, transformers and fire protection systems. The lower end of the floating island frame 3 is fixedly connected to the box-shaped base 6, and the box-shaped base 6 can provide a certain amount of ballast tank. In order to ensure that the overall heavy buoyancy of the frame-type floating island is easier to balance, the structural work intensity is reduced, and the floating state of the semi-submersible ship is easier to adjust. In order to stabilize the overall structure of the floating island frame 3, effectively limit the displacement and bending of the airbag 5, and provide the restoring moment for the airbag 5, in this embodiment, the floating island frame 3 is designed as a truss structure 4, and the airbag 5 is located in the truss structure. Within the encirclement of 4, each airbag 5 is effectively separated within the corresponding area by using the restricting rope 7 . The floating island frame 3 is a three-layer truss structure, and each layer is composed of two upper and lower airbags to fix the horizontal truss plates 8. Such a design can effectively reduce the height of a single airbag 5, thereby reducing the water pressure of the airbag 5 and improving the airbag. 5 overall inflation speed, and reduce the difficulty of controlling the space form of each airbag 5 itself, and reduce the difficulty of manual layout; more preferably, the fixed horizontal truss plate 8 of the airbag with the interface reserved in the middle can move, and rise with the inflation of the airbag 5 rises, the pressure of the airbag 5 drops and falls. An airbag tip slot 9 is fixedly installed on the airbag fixed horizontal truss plate 8, and the two ends of the airbag 5 are respectively fixed on the airbag tip slot 9 in the upper and lower directions; The pore connected by the trachea; the pneumatic power station (located inside the semi-submersible vessel) communicates with the ferrule-type inflation and deflation pipe joint that is airtightly connected to the pore through the trachea. The end of the airbag 5 is fixedly installed in the slot of the tip slot 9 of the airbag, which can effectively compensate for the conical structure of the two ends of the airbag 5, which is usually narrowed. As the cross-sectional area becomes smaller, the buoyancy and restoring moment provided further The problem will also gradually become smaller, so as to meet the stability requirements. Further, to provide a more fitting support environment for the end of the airbag 5, and more conducive to the effective maintenance of the spatial position of the airbag 5, this embodiment provides a design scheme in which the airbag tip slot 9 has a tapered groove body 10 , the two ends of the airbag 5 are conical structures, and the two ends of the airbag 5 in the conical structure are fixedly fitted and installed in the tapered groove body 10. This design will also build better airtightness for the ends of the airbag 5 The effect has a positive effect. In this embodiment, in order to make the flexible airbag 5 not easy to deform or collapse in the middle, a number of airbags fixed on the floating island frame 3 are arranged between two adjacent airbag fixing horizontal truss plates 8 The fixed cover plate 11 can also play the role of fixing the air bag tip slot 9, supporting the truss structure, fixing the limiting rope 7, and connecting the trachea.

Example 2

This embodiment introduces a method for controlling the lifting of a semi-submersible ship, which respectively includes controlling the submerging action and the rising action of the semi-submersible ship;

dive:

a. Seal and fix both ends of the airbag 5 on the airbag tip slot 9 corresponding to the fixed horizontal truss plate 8 of the airbag, wherein the ferrule-type inflation and discharge pipe joint of the airbag 5 is airtightly connected with the hole of the fixed water balance plate of the airbag 5, and then Connect the trachea to the pore, and then use the air source to inflate the airbag 5, and stop inflating when the shape of the airbag 5 reaches the nominal size;

b. Fix at least one intermediate reserved interface of the airbag 5 capsule body to the adjacent truss structure and/or limit rope 7 by a fixing member, so as to ensure that the airbag 5 will not slide in the height direction;

c. Restart the inflation action of the airbag 5 until the air pressure in the airbag 5 reaches the rated air pressure, the inflation pressure is 0.05~0.125MPa, stop inflating and seal the airbag 5;

d. Continuously inject ballast water into the ballast tank of the main body 1 of the ship. At this time, the semi-submersible ship gradually dives slowly until it reaches the set diving depth, and the diving stage ends;

Floating:

e. Continue to discharge the ballast water in the ballast tank of the main body 1 of the ship. At this time, the semi-submersible ship gradually floats up slowly until it reaches the set draft height;

f. deflate the airbag 5 until it is emptied;

g. Manually disassemble the fixing parts on the airbag 5, and make the airbag 5 disengage from all or the upper airbag tip slot 9, and lower the airbag 5 to the bottom by using an electric winch, wherein the electric winch is installed inside the diving boat, and through the hinge rope It is connected in series with the airbag, and the airbag can be retracted and released by using the louver series structure. With reduced frontal area, the ascent phase ends.

Industrial Applicability

It should be noted that the above embodiments are only to fully illustrate the various structural components mentioned in the present invention, and do not constitute a specific limitation on the overall structural composition.

Claims

A frame-type floating island with an air bag is characterized in that it includes a floating island frame (3), and an air bag (5) fixedly installed on the floating island frame (3); the air bag (5) includes a card A sleeve-type inflation and deflation pipe joint, the ferrule-type inflation and deflation pipe joint is connected to the air source through the air pipe.
The frame-type floating island with airbags according to claim 1, further comprising a box-shaped base (6), and the floating island frame (3) is fixed above the box-shaped base (6).
The frame-type floating island with an airbag according to claim 1, wherein the floating island frame (3) is a truss structure (4), and the airbag (5) is located on the truss structure (4) ) within the encirclement; in the gap region between the airbag (5) and the adjacent truss type structure (4), a tensioned restriction rope (7) is set.
The frame-type floating island with airbags according to claim 1, wherein the floating island frame (3) comprises at least two airbag-fixed horizontal truss plates (8); when the airbag-fixed horizontal truss plates ( 8) When there are two airbag-fixed horizontal truss plates (8), place them on the top and bottom of the floating island frame (3); when there are more than two airbag-fixed horizontal truss plates (8) , the airbag fixing horizontal truss plates (8) are respectively placed on the top, bottom and middle of the floating island frame (3); the two ends of the airbag (5) are respectively fixed on two adjacent airbag fixing levels on the truss plate (8).
The frame-type floating island with an airbag according to claim 4, characterized in that an airbag tip slot (9) is fixedly installed on the airbag-fixed horizontal truss plate (8), and the airbag (5) The two ends are correspondingly fixed on the airbag tip slots (9) located in the upper and lower directions; the airbag tip slots (9) are provided with holes for the trachea to communicate or pass through; wherein, if When the trachea communicates with the pore, the ferrule-type inflation and deflation pipe joint of the air bag (5) is airtightly connected with the pore; if the trachea passes through the pore, the trachea directly It is connected with the ferrule type inflation and deflation pipe joint.
The frame-type floating island with an airbag according to claim 5, wherein the airbag tip slot (9) has a tapered groove body (10), and the two ends of the airbag (5) are Conical structure, the two ends of the airbag (5) in the conical structure are fixedly fit and installed in the conical groove (10).
The frame-type floating island with airbags according to claim 4, characterized in that at least one airbag fixing sleeve plate (11) is arranged between two adjacent airbag fixing horizontal truss plates (8), so The airbag fixing sleeve (11) is fixedly connected to the floating island frame (3).
A kind of semi-submersible ship, it is characterized in that, comprises main hull, large fixed buoyant box (2) and the frame-type floating island with air bag as described in any one of claim 1～7; Described main hull is made up of at least one ship Main body (1), at least one ballast tank is arranged in the main body of the ship (1), the large fixed buoyancy tank (2) is fixedly installed on at least one of the main body of the ship (1), and the air bag (5 ) The frame-type floating island is permanently fixed, detachably fixed or slidingly fixedly installed on at least one of the ship main bodies (1).
A lifting control method for a semi-submersible ship, characterized in that it includes a submerged stage and an ascent stage;

Wherein said submerged stage comprises the following several steps:

a. Connect the trachea to the ferrule-type inflation and deflation pipe connector of the airbag (5), and use the air source to inflate the airbag (5);

b. Continue to inflate until the air pressure in the airbag (5) reaches the rated air pressure, stop inflating and seal the airbag (5);

c. Continuously inject ballast water into the ballast tank of the ship main body (1), at this time, the semi-submersible ship gradually dives slowly until reaching the set diving depth, and the diving stage ends;

Described floating phase comprises the following several steps:

d. Continue to discharge the ballast water in the ballast tank of the main body of the ship (1), at this time the semi-submersible ship gradually floats up slowly until it reaches the set draft height;

e. Deflate the air bag (5) until it is emptied, and the floating stage ends.
The semi-submersible ship lifting control method according to claim 9, characterized in that, comprising a submerged phase and a floating phase;

Wherein said submerged stage comprises the following several steps:

a. Seal and fix both ends of the airbag (5) on the airbag tip slot (9) of the corresponding airbag-fixed horizontal truss plate (8), wherein the sleeve-type inflation and deflation pipe joint of the airbag (5) is fixed to the airbag (5) The pores of the water balance plate are airtightly connected, and then the air pipe is connected to the pores, and then the air bag (5) is inflated by the air source, and the inflation is suspended when the shape of the air bag (5) reaches the nominal size;

b. Fix at least one intermediate reserved interface of the airbag (5) capsule body to the adjacent truss structure and/or limit the rope (7) by a fixing member;

c. Restart the inflation action of the airbag (5) until the air pressure in the airbag (5) reaches the rated air pressure, stop inflating and seal the airbag (5);

d. Continuously inject ballast water into the ballast tank of the ship main body (1), at this time, the semi-submersible ship gradually dives slowly until reaching the set diving depth, and the diving stage ends;

Described floating phase comprises the following several steps:

e. Continue to discharge the ballast water in the ballast tank of the main body of the ship (1), at this time the semi-submersible ship gradually floats up slowly until it reaches the set draft height;

f. deflate the airbag (5) until it is emptied;

g. Disassemble the fixing parts on the airbag (5), and make the airbag (5) disengage from all or the upper airbag tip slots (9) and then recover, and the floating stage is over.