CN117864324A - Self-contained buoyancy tank applied to semi-submersible ship floating support installation operation - Google Patents
Self-contained buoyancy tank applied to semi-submersible ship floating support installation operation Download PDFInfo
- Publication number
- CN117864324A CN117864324A CN202410201079.8A CN202410201079A CN117864324A CN 117864324 A CN117864324 A CN 117864324A CN 202410201079 A CN202410201079 A CN 202410201079A CN 117864324 A CN117864324 A CN 117864324A
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- Prior art keywords
- buoyancy
- semi
- buoyancy tank
- self
- detachable
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- 238000007667 floating Methods 0.000 title claims abstract description 39
- 238000009434 installation Methods 0.000 title claims abstract description 30
- 238000000926 separation method Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/02—Hulls assembled from prefabricated sub-units
- B63B3/08—Hulls assembled from prefabricated sub-units with detachably-connected sub-units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
- B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a self-buoyancy tank applied to a semi-submersible ship floating support installation operation, which comprises self-buoyancy detachable buoyancy tanks and a limiting device layer, wherein the two self-buoyancy detachable buoyancy tanks are installed on two sides of a large semi-submersible ship stern, and the limiting device layer is arranged in a gap between the self-buoyancy detachable buoyancy tanks and the two sides of the large semi-submersible ship stern. The detachable buoyancy tank with buoyancy can be matched with a large semi-submersible ship, so that the detachable buoyancy tank has the floating installation function of small modules such as a converter station and the like and the normal transportation function of large and medium cargoes, various different operation requirements are met, the operation capacity of the large semi-submersible ship is improved, and the large semi-submersible ship with the width of more than 55 meters and meeting the stability requirement can be used for floating installation with the main board bar support spacing of the converter station smaller than 50 meters at the stern.
Description
Technical Field
The invention relates to a detachable buoyancy tank of a semi-submersible vessel, in particular to a detachable buoyancy tank with buoyancy, which can adjust self draft to be consistent with the semi-submersible vessel when being detached, can be separated from the semi-submersible vessel after limiting measures are released and can float to the sea surface, and is towed by a tug, and belongs to the technical field of ships and ocean engineering.
Background
Semi-submerged ships currently commonly provide movable buoyancy tanks on cargo decks, which can be slid on the deck or lifted by a crane ship when not performing a submerged operation, and the position of the buoyancy tanks is changed to provide a larger and smoother cargo deck.
At present, offshore wind power is developed to deep sea, the transmission and distribution distance is larger and larger, the flexible direct current technology is gradually trended, and the booster station is changed into a converter station. The weight of the booster station module is generally not more than 5000 tons, and the booster station module can be hoisted by adopting a floating crane ship; but the weight of the convertor station module can reach 14000 tons to 24000 tons, which exceeds the coverage range of a floating crane ship, and the semi-submersible ship is generally adopted for floating installation.
But the clear space between the main chord supports of the foundation structure below the water surface of the convertor station is limited, the maximum space is generally not more than 50 meters, and the width of the semi-submersible vessel which can be inserted into the main chord supports is not more than 45 meters in consideration of a certain safety margin; the converter station module is heavy, the gravity center is high, and the width of the semi-submersible ship which can transport stability over long distances can exceed 55 meters. The conventional method has great engineering amount for modifying the semi-submersible vessel, and the resistance is larger when the semi-submersible vessel is sailed for a long distance after the modification is finished, and the recovery engineering is larger.
Disclosure of Invention
In order to solve the problem that the conventional goods and operation are not affected by the semi-submersible vessel, and the floating installation operation of the booster station module can be conveniently and rapidly realized, the invention provides the self-contained buoyancy tank applied to the floating installation operation of the semi-submersible vessel.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the utility model provides a be applied to semi-submerged ship and float from taking buoyancy pontoon of support installation operation, includes from taking buoyancy removable pontoon, stop device layer, and two from taking buoyancy removable pontoons are installed in the two sides of large-scale semi-submerged ship stern, and are equipped with the stop device layer from taking buoyancy removable pontoon and the two sides of large-scale semi-submerged ship stern are connected the space in.
Further, the two detachable buoyancy tanks with buoyancy are symmetrically arranged on two sides of the stern of the large semi-submersible vessel by taking the midship as a symmetrical plane.
Further, the self-buoyant detachable buoyancy tank comprises: a series of two ballast tanks at the lower part of the midship, and two empty tanks at the side higher than the main deck of the hull, and other related equipment for the semi-submersible vessel.
Further, the cross section of the detachable buoyancy tank with buoyancy is in an L shape towards the midship; extending a certain length from the stern sealing plate to the midship in the ship length direction, wherein the length is equal to the length of a main beam support of the target converter station; from the side to a distance from the propeller range in the ship width direction.
Further, the detachable buoyancy tank with buoyancy extends from the stern seal plate to the midship for 30-50 meters in the ship length direction; the width of a single detachable buoyancy tank in the semi-submersible is 12.7 meters; penetrating the whole ship in the draft direction.
Further, the front ballast tank and the rear ballast tank in the detachable buoyancy tank with the self-buoyancy are used for respectively completing the ballasting under the assistance of the main hull, so that the L-shaped buoyancy tank independently maintains a good buoyancy state in water under the ballasting condition and is smoothly towed by a towing vessel.
Further, the buoyancy-equipped detachable buoyancy tank has streamline surfaces of two sides and bottom adapted to the 'convex' stern of the large semi-submersible, and has flat front, rear and midship parts.
Further, the front part of the detachable buoyancy tank with buoyancy is attached to the midship plane and the tail part of the large semi-submersible vessel, and a plane gap between the detachable buoyancy tank with buoyancy and the large semi-submersible vessel is a certain limiting device layer.
Further, the limiting device in the limiting device layer is fixedly connected with the self-buoyancy detachable buoyancy tank and the ship body in a rigid connection mode, and the separation and connection of the self-buoyancy detachable buoyancy tank and the ship body are controlled.
Further, the width of the "convex" stern from which the buoyant removable buoyancy tank is removed should be greater than the range of the two propellers, i.e., greater than the length of the stern wheelbase plus one propeller diameter, and greater than the width of the support truss on the semi-submersible deck, and greater than the spacing of the main board bar supports of the converter station.
The beneficial effects of the invention are as follows:
the detachable buoyancy tank with buoyancy can be matched with a large semi-submersible ship, so that the detachable buoyancy tank has the floating installation function of smaller modules such as a converter station and the like and the normal transportation function of large and medium cargoes, meets various different operation requirements, and improves the operation capacity of the large semi-submersible ship. The large semi-submersible vessel with the width of more than 55 meters meeting the stability requirement can be arranged at the stern in a floating mode, and the supporting distance between the main side rods of the converter station is smaller than 50 meters.
When the detachable buoyancy tank is detached, the originally wider stern of the large semi-submersible vessel is narrowed in a certain range and smaller than the distance between the main side rod supports of the converter station and the like, so that the stern of the large semi-submersible vessel can enter between the main side rod supports of the converter station to finish the floating installation operation of the large module; when the detachable buoyancy tank is rigidly connected to the main hull, the buoyancy tank can well match with the shape of the stern and perform normal functions such as normal ballasting and buoyancy providing, thereby helping the large semi-submersible to complete the transportation work of large and medium-sized cargoes.
Drawings
FIG. 1 is a top view of a semi-submersible vessel detachable buoyancy tank system;
FIG. 2 is a front view of a semi-submersible vessel detachable buoyancy tank system;
FIG. 3 is a side view of a semi-submersible vessel detachable buoyancy tank system;
FIG. 4 is a top view of the tank ship in isolation;
FIG. 5 is a front view of the tank ship in isolation;
FIG. 6 is a side view of the tank ship in isolation;
FIG. 7 is a top plan view of the floating installation after tank-vessel separation;
FIG. 8 is a front view of the floating mount after tank-ship separation;
FIG. 9 is a side view of the floating installation after tank-vessel separation;
in the figure: the buoyancy-driven type floating tank is characterized in that 1 is a detachable floating tank with buoyancy, 2 is a large semi-submersible vessel, 3 is a limiting device layer, 4 is a main beam support of a converter station, 5 is a converter station module, 6 is a deck support truss of the large semi-submersible vessel, 11 is a ballast tank of the detachable floating tank, and 12 is an empty tank of the detachable floating tank.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1, 2 and 3, the embodiment of the invention provides a self-buoyancy tank applied to the floating support installation operation of a semi-submersible, wherein the self-buoyancy detachable buoyancy tank 1 is positioned on two sides of the stern of a large semi-submersible 2, and the two sides of the buoyancy tank are symmetrically arranged by taking a midship as a symmetry plane.
The detachable buoyancy tank 1 with buoyancy mainly comprises: the ballast tanks 11 of a series of two removable buoyancy tanks near the lower part of the midship and the empty tanks 12 of one removable buoyancy tank located on the two sides and higher than the main deck of the large semi-submersible 2 are used for controlling the floating state of the buoyancy tanks by adjusting the front and rear two ballast tanks at the bottom of each removable buoyancy tank.
The cross section of the detachable buoyancy tanks is L-shaped facing the midship, one side of each detachable buoyancy tank close to the midship is a vertical tangential plane close to the propeller of the semi-submersible ship, two sides are streamline shapes matched with the tail line of the ship body, the front part and the rear part of each detachable buoyancy tank are vertical planes, and the rear part of each detachable buoyancy tank is flush with the stern sealing plate of the semi-submersible ship. In summary, the two removable buoyancy tanks occupy a majority of the stern area of the semi-submersible vessel.
A certain limiting device is arranged on two planes of the midship and the head rest of the two detachable buoyancy tanks, a limiting device layer 3 is positioned between the flat contact surfaces of the large semi-submersible main ship body and the detachable buoyancy tanks, and the rigid connection and separation of the buoyancy tanks and the large semi-submersible main ship body can be realized through a certain mode such as welding, pulling, bolt fixing and other methods, and the acting force between the main ship body and the detachable buoyancy tanks is born.
When the large semi-submersible is loaded with normal goods for transportation, the detachable buoyancy tank 1 with buoyancy is fixedly connected to the main hull of the large semi-submersible 2 and is used as a ballast tank, the buoyancy tank and other functional modules normally, and when the floating installation operation of the lower structure main side rod supporting distance of a booster station or a converter station and the like is required to be carried out, the detachable buoyancy tank with the two sides of the stern is detached from the main hull, the waterline of the detachable buoyancy tank is consistent with that of the semi-submersible through reasonable ballast of the ballast tank in the buoyancy tank, the limiting device is removed, and the detachable buoyancy tank floats on the water surface freely and is separated from the main hull through a tug.
As shown in fig. 4, 5 and 6, the detachable buoyancy tank with buoyancy is separated from the large semi-submersible vessel, and after the tank vessel is separated, the large semi-submersible vessel can still work independently and normally, at the moment, the tail part of the vessel is in a convex shape, the tail part of the vessel is smaller than the midship vessel, slightly larger than the tail wheelbase plus the length of one time of the diameter of the propeller, and smaller than the width of a bracket required to be subjected to floating installation.
After the two detachable buoyancy tanks are dismantled on the large semi-submersible vessel, the floating support installation can be carried out on the converter station or the booster station module, the converter station or the booster station module is transported to an installation site after being loaded, and the convex tail part of the large semi-submersible vessel after the buoyancy tanks are dismantled can smoothly enter between the main side rod supports, so that the floating support installation of the module is completed.
When the floating support is installed, as shown in fig. 7, 8 and 9, the space of the stern of the large semi-submersible vessel after the detachable floating box is removed is smaller than the space between the main beam supports 4 of the converter station, the longitudinal length of the floating box is approximately equal to the length of the lower support of the converter station, the width of the stern is larger than the width of the support structure above the deck, and the 'convex' stern can accommodate the deck support truss 6 of the large semi-submersible vessel of the converter station module 5.
When the large semi-submersible vessel is in floating installation, the detachable buoyancy tanks at the two sides of the stern can be reinstalled with the aid of the tugboat at the wharf or at the anchor to carry out normal cargo transportation.
Claims (10)
1. Be applied to semi-submerged ship and float from taking buoyancy pontoon of support installation operation, its characterized in that: the device comprises a self-buoyancy detachable buoyancy tank and a limiting device layer, wherein two self-buoyancy detachable buoyancy tanks are arranged on two sides of the stern of a large semi-submersible ship, and the limiting device layer is arranged in a gap between the self-buoyancy detachable buoyancy tank and the two sides of the stern of the large semi-submersible ship.
2. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 1 wherein: two detachable buoyancy tanks with buoyancy are symmetrically arranged on two sides of the stern of the large semi-submersible vessel by taking the midship as a symmetrical plane.
3. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 1 wherein: from removable buoyancy tank of taking buoyancy includes: a series of two ballast tanks at the lower part of the midship, and two empty tanks at the side higher than the main deck of the hull, and other related equipment for the semi-submersible vessel.
4. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 1 wherein: the cross section of the detachable buoyancy tank with buoyancy is in an L shape facing the midship; extending a certain length from the stern sealing plate to the midship in the ship length direction, wherein the length is equal to the length of a main beam support of the target converter station; from the side to a distance from the propeller range in the ship width direction.
5. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 4 wherein: the detachable buoyancy tank with buoyancy extends from the stern sealing plate to the midship for 30-50 meters in the ship length direction; the width of a single detachable buoyancy tank in the semi-submersible is 12.7 meters; penetrating the whole ship in the draft direction.
6. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 4 wherein: the front ballast tank and the rear ballast tank in the detachable buoyancy tank with the buoyancy are used for respectively completing the ballasting under the assistance of the main hull, so that the L-shaped buoyancy tank independently maintains a good buoyancy state in water under the ballasting condition and is smoothly towed by a towing vessel.
7. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 1 wherein: the detachable buoyancy tank with buoyancy has its streamline surfaces of two sides and bottom fitting to the 'convex' stern of large semi-submersible, and its front, rear and midship are plane.
8. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 7 wherein: the front part of the detachable buoyancy tank with buoyancy is attached to the tail part of the large semi-submersible vessel, and the plane gap between the detachable buoyancy tank with buoyancy and the large semi-submersible vessel is a certain limiting device layer.
9. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 8 wherein: the limiting device in the limiting device layer is fixedly connected with the self-buoyancy detachable buoyancy tank and the ship body in a rigid connection mode, and the separation and connection of the self-buoyancy detachable buoyancy tank and the ship body are controlled.
10. The self-contained buoyancy tank for use in semi-submersible vessel floating installation operations as recited in claim 1 wherein: the width of the ship at the tail of the 'convex' shape with the detachable buoyancy tank is larger than the range of two propellers, namely, the length of the ship tail wheelbase plus one time of the diameter of the propellers, the width of the supporting truss on the deck of the semi-submersible ship and the distance between the supporting truss and the main board rod of the converter station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410201079.8A CN117864324A (en) | 2024-02-23 | 2024-02-23 | Self-contained buoyancy tank applied to semi-submersible ship floating support installation operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410201079.8A CN117864324A (en) | 2024-02-23 | 2024-02-23 | Self-contained buoyancy tank applied to semi-submersible ship floating support installation operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117864324A true CN117864324A (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410201079.8A Pending CN117864324A (en) | 2024-02-23 | 2024-02-23 | Self-contained buoyancy tank applied to semi-submersible ship floating support installation operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117864324A (en) |
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2024
- 2024-02-23 CN CN202410201079.8A patent/CN117864324A/en active Pending
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