CN219927938U - Offshore comprehensive positioning device of drilling and production ship - Google Patents
Offshore comprehensive positioning device of drilling and production ship Download PDFInfo
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- CN219927938U CN219927938U CN202320957391.0U CN202320957391U CN219927938U CN 219927938 U CN219927938 U CN 219927938U CN 202320957391 U CN202320957391 U CN 202320957391U CN 219927938 U CN219927938 U CN 219927938U
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- ship body
- ballast water
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- ship
- propeller
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- 238000005553 drilling Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000013535 sea water Substances 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 27
- 230000001105 regulatory effect Effects 0.000 abstract description 12
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model discloses a drilling and production ship marine comprehensive positioning device which comprises a ship body and a controller, wherein a plurality of ballast water tanks are arranged on two sides of the ship body, which are close to the center, the ballast water tanks are communicated with a load regulating pipeline for conveying seawater, a load regulating water pump for controlling the seawater to be injected into or discharged out of the ballast water tanks is arranged on the load regulating pipeline, a plurality of draft sensors for detecting draft of the ship body are arranged on two sides of the bow and stern of the ship body, a plurality of propellers are arranged on two sides of the bow and stern of the ship body, the propellers, the load regulating water pump and the draft sensors are electrically connected with the controller, the controller receives hull draft signals of the draft sensors to calculate the real-time gravity center position of the ship body, and the thrust of the propellers and the loading capacity of the ballast water tanks are controlled according to the real-time gravity center position. According to the utility model, the ballast capacity of the ship body is changed by injecting or discharging seawater into the ballast water tank, so that the gravity center position of the ship body is adjusted, and the gravity center position of the ship body is far away from the propeller with larger thrust as far as possible, so that the ship body obtains larger turning moment, and the capacity consumption of the propeller is reduced.
Description
Technical Field
The utility model relates to a dynamic positioning device, in particular to a marine comprehensive positioning device for a drilling and production ship.
Background
Marine environmental conditions are extremely severe, and vessels used for offshore mining, oil transportation, salvage, drilling, leveling, large component transfer and other purposes often need to be positioned by a sufficient capacity positioning system to resist external environmental loads and maintain the position of the vessel. The dynamic positioning system (Dynamic Positioning System) is a system for positioning the ship at a required position against external influences (such as wind and wave current acting force) by detecting the difference between the actual position and the target position of the ship through the measuring system without the help of the anchoring system, calculating the required thrust, and reasonably distributing the thrust to the propeller. The rotation speed and the angle of each propeller are adjusted according to the system requirement, and under the combined action of a plurality of propellers, the ship rotates or deflects by taking the gravity center of the ship as a base point, so that the ship is positioned at a required position. In deep water, dynamic positioning is widely applied to the fields of ships and ocean engineering.
When the ship rotates, the ship basically rotates by taking the gravity center of the ship as a base point, the speed of rotation is related to the total rotation moment of each propeller, the moment of each propeller is=thrust force x moment arm, and the moment arm is the distance between the propeller and the gravity center of the ship. In general, after the ship is built, the position of the center of gravity of the empty ship is a fixed value, that is, the distance between each propeller and the center of gravity of the ship is fixed, so that the moment of each propeller is only related to the thrust. When the ship is positioned dynamically, the rotation speed and angle of the ship can be realized only by adjusting the rotation speed and angle of each propeller, a large amount of energy consumption is required for maintaining the position of each propeller to work continuously, and the adaptable sea condition is low.
Disclosure of Invention
The utility model provides a marine comprehensive positioning device for drilling and production vessels, which can change the gravity center position of the vessels, and can improve the positioning speed of the vessels and reduce the energy consumption of the vessels by adjusting the force arm and the thrust of each propeller of the vessels to match.
The utility model discloses a marine comprehensive positioning device of a drilling and production ship, which comprises a ship body and a controller, wherein a plurality of ballast water tanks are arranged on two sides of the ship body, which are close to the center, the ballast water tanks are communicated with a load regulating pipeline for conveying seawater, a load regulating water pump for controlling the seawater to be injected into or discharged out of the ballast water tanks is arranged on the load regulating pipeline, a plurality of draft sensors for detecting draft of the ship body are arranged on two sides of the bow and stern of the ship body, a plurality of propellers are also arranged on two sides of the bow and stern of the ship body, the propellers, the load regulating water pump and the draft sensors are all electrically connected with the controller, and the controller receives hull draft signals of the draft sensors to calculate the real-time gravity center position of the ship body and control the thrust of the propellers and the loading capacity of the ballast water tanks according to the real-time gravity center position.
The drilling and production ship marine comprehensive positioning device is characterized in that a real-time draught signal is measured through draught sensors on the two sides of the ship body, a controller receives the draught signal to calculate and analyze to obtain the real-time gravity center position of the ship body, and meanwhile, the optimal gravity center position of the ship body is calculated by taking the principle of increasing a moment arm and reducing thrust; and then control and transfer the water pump to pour into or discharge the sea water to the assigned ballast water tank, along with the change of the hull pressure capacity, its barycentric position will move to the optimum barycentric position that needs, and control thrust size and angle that each propeller sent according to the real-time barycentric position of hull, through adjusting the arm of force and thrust cooperation of each propeller of hull, realize the quick location of hull. The utility model has simple structure, changes the ship body pressure capacity by injecting or discharging seawater into the ballast water tank, and further adjusts the gravity center position of the ship body, so that the gravity center position of the ship body is far away from the propeller with larger thrust as far as possible, thereby enabling the ship body to obtain larger turning moment and reducing the capacity consumption of the propeller.
Drawings
FIG. 1 is a schematic diagram of a marine integrated positioning device for a drilling and production vessel.
Fig. 2 is a diagram of the center of gravity displacement of the hull.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, rear, top, bottom, inner, outer, vertical, lateral, longitudinal, counterclockwise, clockwise, circumferential, radial, axial … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
As shown in figure 1, the marine comprehensive positioning device of the drilling and production ship comprises a ship body 1 and a controller 2, wherein a plurality of ballast water tanks 3 are arranged on two sides, close to the center, of the ship body, a load regulating pipeline 4 for conveying seawater is communicated with the ballast water tanks, a load regulating water pump 5 for controlling seawater to be injected into or discharged from the ballast water tanks is arranged on the load regulating pipeline, a plurality of draft sensors 6 for detecting draft of the ship body are arranged on two sides of the bow and stern of the ship body, a plurality of propellers 7 are also arranged on two sides of the bow and stern of the ship body, the propellers, the load regulating water pump and the draft sensors are all electrically connected with the controller, and the controller receives a real-time gravity center position of the ship body calculated by hull draft signals of the draft sensors and controls thrust of the propellers and loading capacity of the ballast water tanks according to the real-time gravity center position. The method comprises the steps that real-time draught signals are measured through draught sensors on the two sides of the bow and the stern of the ship body, a controller receives the draught signals, calculates and analyzes the draught signals to obtain the real-time gravity center position of the ship body, and meanwhile, the optimal gravity center position of the ship body is calculated on the basis of the principle of increasing force arms and reducing thrust; and then control and transfer the water pump to pour into or discharge the sea water to the assigned ballast water tank, along with the change of the hull pressure capacity, its barycentric position will move to the optimum barycentric position that needs, and control thrust size and angle that each propeller sent according to the real-time barycentric position of hull, through adjusting the arm of force and thrust cooperation of each propeller of hull, realize the quick location of hull. The utility model has simple structure, changes the ship body pressure capacity by injecting or discharging seawater into the ballast water tank, and further adjusts the gravity center position of the ship body, so that the gravity center position of the ship body is far away from the propeller with larger thrust as far as possible, thereby enabling the ship body to obtain larger turning moment and reducing the capacity consumption of the propeller.
For example, as shown in fig. 2, when the original center of gravity of the hull is at point G and the hull needs to turn around to the bow and the starboard, the angle and the speed of the bow and the stern propellers are adjusted, and the thrust force generated by each propeller is respectively T 1 、T 2 、T 3 The rotation moment obtained by the ship body is T 1 ×L 1 + T 2 ×L 2 + T 3 ×L 3 The method comprises the steps of carrying out a first treatment on the surface of the The seawater in the stern ballast water tank is pumped out by the load-adjusting water pump, and the seawater is injected into the bow ballast water tank, so that the gravity center of the ship body moves towards the bow for h meters, the new gravity center position is at point G', and when the thrust is unchanged, the rotation moment obtained by the ship body is T 1 ×L 1’ + T 2 ×L 2’ + T 3 ×L 3’ Although the thrust T 3 The moment arm of the stern is reduced, but the moment arms of both main propellers are increased, so that only a new moment sum (T 1 ×L 1’ + T 2 ×L 2’ + T 3 ×L 3’ ) Sum of primary moment T 1 ×L 1 + T 2 ×L 2 + T 3 ×L 3 The ship body can obtain larger rotation moment, so that the faster rotation speed is realized, and the more energy-saving effect is realized.
The system also comprises environment monitors connected with the controller, the environment monitors are respectively arranged at the front, back, left and right sides of the ship body and are used for monitoring the real-time wind direction and sending the measured wind direction information to the controller, the influence of wind power on the ship body is calculated, and then each propeller and the ballast water tank are controlled more accurately, so that the ship body obtains larger rotation moment, and the capacity consumption of the propeller is reduced.
Two ballast water tanks are respectively arranged on two sides of the ship body close to the center, two ballast water tanks are arranged on the stern part of the ship body, and two ballast water tanks are arranged on the bow part of the ship body. The ballast water tanks are uniformly distributed on the ship body, so that the weight of each ship body can be uniformly changed, and the gravity center position of the ship body can be more conveniently adjusted.
Claims (3)
1. The utility model provides a drilling and production ship marine integrated positioning device, includes hull (1) and controller (2), and its characterized in that, the both sides that the hull is close to the center are equipped with a plurality of ballast water tank (3), ballast water tank intercommunication has and is used for carrying the load-adjusting pipeline (4) of sea water, installs on the load-adjusting pipeline and controls the load-adjusting water pump (5) of sea water injection or discharge ballast water tank, and a plurality of draught sensor (6) that are used for detecting the hull draft are installed to hull bow stern both sides, and a plurality of propeller (7) are still installed to hull bow stern both sides, propeller, load-adjusting water pump and draught sensor all are connected with the controller electricity, the real-time focus position of hull is calculated to the hull draft signal of controller receipt draught sensor, the thrust of control propeller and the loading capacity of ballast water tank according to real-time focus position.
2. The drilling and production vessel offshore integrated positioning device according to claim 1, further comprising environment monitors connected with the controller, wherein the environment monitors are respectively arranged on the front side, the rear side, the left side and the right side of the hull.
3. The drilling and production ship marine integrated positioning device according to claim 1, wherein two ballast water tanks are respectively arranged on two sides of the ship body close to the center, two ballast water tanks are arranged on the stern of the ship body, and two ballast water tanks are arranged on the bow of the ship body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957391.0U CN219927938U (en) | 2023-04-25 | 2023-04-25 | Offshore comprehensive positioning device of drilling and production ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957391.0U CN219927938U (en) | 2023-04-25 | 2023-04-25 | Offshore comprehensive positioning device of drilling and production ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219927938U true CN219927938U (en) | 2023-10-31 |
Family
ID=88494298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320957391.0U Active CN219927938U (en) | 2023-04-25 | 2023-04-25 | Offshore comprehensive positioning device of drilling and production ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219927938U (en) |
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2023
- 2023-04-25 CN CN202320957391.0U patent/CN219927938U/en active Active
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